mirror of
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6361 lines
192 KiB
C
6361 lines
192 KiB
C
/* ---------------------------------------------------------------------
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Bmp2DHR (C) Copyright Bill Buckels 2014.
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All Rights Reserved.
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Module Name - Description
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-------------------------
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b2d.c - main program
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Licence Agreement
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-----------------
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You have a royalty-free right to use, modify, reproduce and distribute this
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source code in any way you find useful, provided that you agree that Bill
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Buckels has no warranty obligations or liability resulting from said
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distribution in any way whatsoever. If you don't agree, remove this source code
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and related files from your computer now.
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Written by: Bill Buckels
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Email: bbuckels@mts.net
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Version 1.0
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Developed between Aug 2014 and December 2014 with "standard parts".
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Bmp2DHR reads a monochrome, 16 color, 256 color, or 24 bit BMP and writes Apple
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II color or monochrome HGR or DHGR files.
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Functional Summary of Bmp2DHR Version 1.0
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-----------------------------------------
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Input File Size
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---------------
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Full Screen Color Output - DHGR (default) and HGR (option "hgr")
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Size, Nominal Resolution Etc
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140 x 192 - verbatim
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280 x 192 - lossy or merged
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320 x 200 - 280 x 192
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560 x 384 - lossy or merged
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640 x 400 - 560 x 384
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640 x 480 - 560 x 384
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Full Screen HGR Monochrome Output - Option "mono"
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280 x 192
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Full Screen DHGR Monochrome Output - Option "mono"
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560 x 192 Monochrome Only - verbatim conversion
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560 x 384 Color Only - dithered output
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Full Screen and Mixed Screen LGR (option "L") and DLGR (option "DL") Output
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40 x 48 and 40 x 40 - LGR verbatim
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80 x 48 and 80 x 40 - DLGR verbatim and LGR 2:1 merged scaling
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160 x 96 and 160 x 80 - DLGR 2:2 and LGR 4:2 merged scaling
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88 x 52 and 176 x 104 - Windowboxed Mini-Pix BMPs - Nominal Output Sizes same as above
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320 x 192, 320 x 160, and 320 x 200 - DLGR 4:4 and LGR 8:4 merged scaling
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560 x 384 and 560 x 320 - DLGR 7:8 and LGR 14:8 merged scaling
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640 x 480 and 640 x 400 - DLGR 8:10 and LGR 16:10 merged scaling
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Image Fragment DHGR Color "Sprite" Output - Option "F"
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1 x 1 to 140 x 192 - verbatim - results in double-wide output appearance
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1 x 1 to 280 x 192 - scaled - results in proportional output appearance
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When scale is not set the maximum BMP input resolution for "Sprites" is 140 x
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192, and when scale is set the maximum is 280 x 192.
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Overlay File Size - 256 color BMP - verbatim sizes
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HGR and DHGR Color Output - 140 x 192
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HGR Mono Output - 280 x 192
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DHGR Mono Output - 560 x 192
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Additional Input Files - Text Format
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------------------------------------
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- Palette Files (various formats)
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- User Definable Dither Files (see documentation and read source below)
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- Overlay Titling Text (uses built-in TomThumb font)
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Note: The Overlay Option for either a BMP or Text overlay does not apply to
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image fragment output.
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Output Summary
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--------------
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Bmp2DHR provides 4 primary types of Apple II output:
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Default Color and Option "mono" - Full-Screen DHGR files - A2FC and A2FM single-file format.
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Option "F"- Image Fragments in color DHGR Format - DHR scanline oriented single file format.
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Option "hgr" - Full-Screen HGR files - single file BIN format.
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Option "L" and "DL" - Full Screen and Mixed Screen Lo-Res and Double Lo-Res scanline oriented single file
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DHGR Optional Alternate Output - Option "A" - AUX,BIN File Pairs instead of A2FC or A2FM files.
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LGR and DLGR Optional Alternate Output - Option "A" - SL2 or DL1,DL2 File Pairs instead of SLO or DLO single files
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AUX,BIN File Pairs, SL2 files and DL1,DL2 File Pairs are for AppleSoft BASIC programs.
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Additional Optional Output includes:
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Option "v" - Preview Output in BMP format.
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Option "debug" - "debug" output of work files if any in BMP format.
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Option "vbmp" - VBMP compatible BMP output (not available as LGR and DLGR output).
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Additional Notes
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----------------
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For primary input Bmp2DHR accepts BMP files in Version 3 format only in a
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specific range of input sizes and formats. The size and format of the input
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file depends on the type of desired primary output and the rendering options
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that have been selected.
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Rendering options fall into several categories and where considered practically
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possible and where it makes sense given the constraints and scope of Bmp2DHR,
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all rendering options are available for all output.
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Specific rendering options for specific output are also available.
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Constraints are also also enforced by both BMP sizes and formats, and whether
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output is color or monochrome, and also if external rendering is being used
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like dithering in editors like The GIMP.
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In the case of externally rendered input files, Bmp2DHR is only used as a
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direct pixel converter to "pass-through" the BMP input file "verbatim". In this
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case, the color palette needs to exactly match Bmp2DHR's color palette, and the
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resolution needs to exactly match the Apple II output resolution.
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560 x 384 and 560 x 192 BMPs are used as input files for DHGR monochrome output, and
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280 x 192 BMPs are used as input files for HGR monochrome output.
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Monochrome BMP files of 280 x 192 or 560 x 192 are required for verbatim
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"pass-through" and output to Apple II HGR or DHGR files respectively. Palette
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matched 140 x 192 color BMP files are required to pass-through properly to
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color HGR or DHGR output. Color palettes that are used in external editors to
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prepare pass-through input must either be imported into Bmp2DHR, or Bmp2DHR's
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palettes must be imported into external editors.
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Preview Output from Bmp2DHR can also generally be re-edited (carefully) and
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reprocessed using direct pixel "passthrough" which is essentially the same
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process as using an external editor to render and dither.
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Secondary Input Files
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---------------------
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Bmp2DHR also accepts several secondary input files.
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- Text Files for titling using a built-in font (HGR and DHGR full-screen conversion only)
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- Palette Files in several text-based formats
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- External Error Diffusion user-defined Dither Patterns in text format
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- 256 color BMP files for overlaying the input image with verbatim text and simple pixel graphics
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(HGR and DHGR full-screen conversion only)
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For DHGR sprite output external Palette files and Dither Pattern files can be
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used, but titling and overlaying is targeted at full-screen output.
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Apple II Output Format Specification Summary
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--------------------------------------------
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DHGR output (default)
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For DHGR default output, the A2FM and A2FC file extensions are just a naming
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convention so the user can tell the difference between a monochrome and color
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Apple II file; they are both binary DHGR files with a raw Auxiliary DHGR Memory
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"DUMP" of 8192 bytes, followed by a raw Main DHGR Memory "DUMP" of 8192 bytes,
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totalling 16384 bytes. These are stored in ProDOS as Binary FileType $06 with
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an Auxiliary Type of either $2000 or $4000, which is the load address of the
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DHGR screen.
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Alternate Default Output (option "A")
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Alternate output of a split version of the A2FC format is optionally available
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using option "A". Sometimes called AUX,BIN file pairs, these are easier to load
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in an AppleSoft BASIC program. They are also stored in ProDOS as Binary
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FileType $06 with an Auxiliary Type of either $2000 or $4000 and are 8192 bytes
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each.
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For LGR and DLGR conversion the equivalent Alternate Output is also in "BSAVED" file
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format. LGR and DLGR Apple II files are stored in ProDOS as Binary FileType $06 with
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an Auxiliary Type of $0400.
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HGR output (option "hgr")
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For HGR output, the "BIN" file extension is used. These are indistinguishable
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from DHGR BIN files in an AUX,BIN file pair which are also the same ProDOS file
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type $06 and length of 8192 bytes, so a loader must be aware of the specific
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files to load these properly.
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Image Fragment ("Sprite") output (option "F")
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Sprite (image fragment) format Output is an option. Sprite Output and normal
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HGR and DHGR full-screen output are mutually exclusive (to some degree). If you
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provide Bmp2DHR with a BMP image fragment but you don't specify Option "F" a
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full-screen Apple II A2FC File will be produced with the Sprite in the top left
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corner. This is so you can conveniently look at the sprite on an Apple II
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display. The latest version of my cc65 dhishow slideshow also loads Sprites so
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you can use that for the same purpose too.
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About Sprites
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The Sprites produced by this utility are in XPACK's DHR format, but XPACK only
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produces Full Screen DHGR images so this is something new.
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The DHR (Double Hi-Res Raster) Image Format
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The image fragments produced by Bmp2DHR have an extension of DHR. Like A2FC and
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AUX,BIN file pairs, they are stored on an Apple II Disk as ProDOS FileType $06
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with an Auxiliary Type of $2000 or $4000 by default. On a DOS 3.3 disk they are
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stored with header information required by DOS 3.3.
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The Header of a DHR is in two parts;
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3 bytes of ID data with the letters 'D', 'H', 'R' in upper-case
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1 byte - width in bytes (multiples of 4 bytes - 7 pixels)
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1 byte - height in rasters
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The DHR is a raster based image with scanlines of raw DHGR data alternating
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between auxiliary and main memory. Therefore a simple BASIC program cannot
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easily load these since the DHGR screen is interleaved the same way that the
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HGR screen is interleaved and not linear. Bank switching between auxiliary and
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main memory banks 0 (main board) and 1 (language card) is also not easy in a
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BASIC program.
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For a full-screen DHR, there are 192 pairs of rasters, each of 40 bytes of
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auxiliary memory data followed by 40 bytes of main memory data. This keeps bank
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switching to a minimum and allows for linear reading from disk or buffer.
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The full screen DHR loads raster by raster and displays as quickly as a
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buffered read can display on the Apple II. At 15365 bytes per screen this
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format provides a modest disk space saving over the 16384 bytes of the A2FC or
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AUX,BIN equivalent.
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A caveat for any file in DHR raster format is the 4 byte / 7 pixel pattern of
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the DHGR display. The width descriptor in the header is given in byte width
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rather than pixel width. Image fragments in DHGR must necessarily be aligned on
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4 byte boundaries to display properly. This utility pads DHR formats as
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required in an optional background color if desired.
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By comparison, HGR image fragments (not produced by Bmp2DHR) are aligned on 2
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byte boundaries for proper display but they are still somewhat recognizable if
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not aligned properly.If DHGR image fragments are not aligned on 4 byte
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boundaries they are a mess.
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If a programmer wanted to load these according to a specific position on the
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DHGR it would be possible to give the starting scanline and starting byte to
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the desired position on the screen, and store that as the Auxiliary Type
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instead:
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1. The program would read the header and perform a file integrity check to
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ensure that the file size was as expected.
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2. Part of the verification would also be to determine if the Auxiliary Type
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fell within the DHGR visible screen boundaries and if the file itself would
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fit.
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3. Having satisfied this requirement the image fragment could be positioned at
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that point by the program.
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Doing so would save disk-space and load time when constructing a pre-planned
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screen in a DHGR program, since full-screens are generally larger by comparison
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to creating full-screens from fragments.
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Additional Remarks
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------------------
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This program has many more options. The source code comments and the
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documentation can be reviewed for additional information.
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------------------------------------------------------------------------ */
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/* ***************************************************************** */
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/* ========================== includes ============================= */
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/* ***************************************************************** */
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <math.h>
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#include <ctype.h>
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#include "b2d.h"
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/* ***************************************************************** */
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/* ======================= string data ============================= */
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/* ***************************************************************** */
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char *title = "Bmp2DHR Version 1.1 (c) Copyright Bill Buckels 2015.\nAll Rights Reserved.";
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char *usage[] = {
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"Usage: \"b2d input.bmp options\"",
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"Input format: mono, 16 color, 256 color, or 24-bit Version 3 uncompressed BMP",
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"Default DHGR Colored Output: Full Screen Apple II A2FC file",
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"Optional Usage: \"b2d input.bmp hgr options\"",
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" For HGR Colored Output: Full Screen Apple II BIN file",
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"Optional Usage: \"b2d input.bmp mono options\"",
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" For Mono Output: Full Screen Apple II DHGR A2FM or HGR BIN file",
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"Free Scaled Input Sizes: Full Screen (default) or DHGR Sprite (option F) output",
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" Full Scale: from 1 x 1 to 140 x 192 (default) - HGR and DHGR",
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" Half Scale: from 1 x 1 to 280 x 192 (scaling option S2) - HGR and DHGR",
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"HGR and DHGR Fixed Scaled Input Sizes: Full Screen Output (default)",
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" 140 x 192 - Full Scale (for LGR use 40 x 48, for DLGR use 80 x 48)",
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" 280 x 192 - Double Width Scale (for LGR and DLGR use 160 x 96)",
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" 320 x 200 - Classic Size (also used for LGR and DLGR windowboxed output)",
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" 560 x 384 - Quadruple Width, Double Height Scale (also for LGR and DLGR)",
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" 640 x 400 - Classic Size (also used for LGR and DLGR mixed screen output)",
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" 640 x 480 - Classic Size (also used for LGR and DLGR full screen output)",
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"Full Screen Dithered Output (optional): Option D (D1 to D9)",
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"Optional Usage: \"b2d input.bmp L (or DL) options\"",
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" For Color LGR or DLGR Full Screen or Mixed Screen (option \"TOP\") Output",
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"See documentation for more information including additional input size info",
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NULL};
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char *dithertext[] = {
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"Floyd-Steinberg",
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"Jarvis",
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"Stucki",
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"Atkinson",
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"Burkes",
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"Sierra",
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"Sierra Two",
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"Sierra Lite",
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"Buckels",
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"Custom"};
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char *palname[] = {
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"Kegs32 RGB",
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"CiderPress RGB",
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"Old AppleWin NTSC",
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"New AppleWin NTSC",
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"Wikipedia NTSC",
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"tohgr NTSC DHGR",
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"Imported",
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"Legacy Canvas",
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"Legacy Win16",
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"Legacy Win32",
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"Legacy VGA BIOS",
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"Legacy VGA PCX",
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"Super Convert RGB",
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||
"Jace NTSC",
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"Cybernesto-Munafo NTSC",
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"Pseudo Palette",
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"tohgr NTSC HGR"};
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/* ***************************************************************** */
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/* ========================== code ================================= */
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/* ***************************************************************** */
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int cmpstr(char *str, char *cmp)
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{
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int i;
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|
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if (strlen(cmp) != strlen(str)) return INVALID;
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for (i=0;str[i] != 0;i++) {
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if (toupper(cmp[i]) != toupper(str[i])) return INVALID;
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||
}
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return SUCCESS;
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||
}
|
||
|
||
/* returns 255 if color number or color name are invalid */
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||
uint8_t PaintByNumbers(char *str)
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{
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||
int idx;
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uint8_t c = toupper(str[0]);
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if (str[1] == (char) 0) {
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/* alpha mnemonic */
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if (c > 64 && c < 81) return (uint8_t) (c - 65);
|
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}
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||
|
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/* non numeric argument so check for color names */
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/* add additional color names here if required */
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if (c > 57) {
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c = 255;
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if (cmpstr("black", str) == SUCCESS)c = 0;
|
||
else if (cmpstr("red", str) == SUCCESS)c = 1;
|
||
else if (cmpstr("dblue", str) == SUCCESS)c = 2;
|
||
else if (cmpstr("purple", str) == SUCCESS)c = 3;
|
||
else if (cmpstr("dgreen", str) == SUCCESS)c = 4;
|
||
else if (cmpstr("dgray", str) == SUCCESS)c = 5;
|
||
else if (cmpstr("dgrey", str) == SUCCESS)c = 5;
|
||
else if (cmpstr("mblue", str) == SUCCESS)c = 6;
|
||
else if (cmpstr("lblue", str) == SUCCESS)c = 7;
|
||
else if (cmpstr("brown", str) == SUCCESS)c = 8;
|
||
else if (cmpstr("orange", str) == SUCCESS)c = 9;
|
||
else if (cmpstr("lgray", str) == SUCCESS)c = 10;
|
||
else if (cmpstr("lgrey", str) == SUCCESS)c = 10;
|
||
else if (cmpstr("pink", str) == SUCCESS)c = 11;
|
||
else if (cmpstr("lgreen", str) == SUCCESS)c = 12;
|
||
else if (cmpstr("yellow", str) == SUCCESS)c = 13;
|
||
else if (cmpstr("aqua", str) == SUCCESS)c = 14;
|
||
else if (cmpstr("white", str) == SUCCESS)c = 15;
|
||
}
|
||
else {
|
||
if (c == '0' && str[1] == (char)0) {
|
||
c = 0;
|
||
}
|
||
else {
|
||
c = 255;
|
||
idx = atoi(str);
|
||
if (idx > -1 && idx < 16) c = (uint8_t) idx;
|
||
}
|
||
}
|
||
|
||
return c;
|
||
}
|
||
|
||
|
||
uint16_t Motorola16(uint16_t val)
|
||
{
|
||
uint8_t buf[2];
|
||
uint16_t *ptr;
|
||
|
||
/* msb in smallest address */
|
||
buf[0] = (uint8_t) (val % 256); val = val/256;
|
||
buf[1] = (uint8_t) (val % 256);
|
||
|
||
ptr = (uint16_t *)&buf[0];
|
||
val = ptr[0];
|
||
|
||
return val;
|
||
}
|
||
|
||
void WriteDosHeader(FILE *fp, uint16_t fl, uint16_t fa)
|
||
{
|
||
|
||
/* if CiderPress tags are turned-on I assume that the header is not required
|
||
since presumably the tags will be used to place the file properly and ciderpress
|
||
will create the DOS 3.3 header based on the file attribute preservation tag.
|
||
*/
|
||
if (dosheader == 1 && tags == 0) {
|
||
|
||
fa = Motorola16(fa);/* file bload address - not including this header */
|
||
fl = Motorola16(fl);/* file length - not including this header */
|
||
|
||
fwrite((char *)&fa,sizeof(uint16_t),1,fp);
|
||
fwrite((char *)&fl,sizeof(uint16_t),1,fp);
|
||
}
|
||
}
|
||
|
||
|
||
/*
|
||
|
||
Photoshop Luminosity Average
|
||
|
||
Formula for the Luminosity Average:
|
||
|
||
AvgLuma = 0.299<EFBFBD>AvgRed + 0.587<EFBFBD>AvgGreen + 0.114<EFBFBD>AvgBlue
|
||
|
||
|
||
*/
|
||
|
||
|
||
/* set luma to different values for closest color */
|
||
int lumaREQ = 601, lumaRED = 299, lumaGREEN = 587, lumaBLUE = 114;
|
||
double dlumaRED, dlumaGREEN, dlumaBLUE;
|
||
|
||
void setluma()
|
||
{
|
||
switch(lumaREQ)
|
||
{
|
||
case 240: /* SMPTE 240M transitional coefficients */
|
||
lumaRED = 212; lumaGREEN = 701; lumaBLUE = 87;
|
||
dlumaRED = 0.212; dlumaGREEN = 0.701; dlumaBLUE = 0.087;
|
||
break;
|
||
|
||
case 911: /* Sheldon Simms - tohgr */
|
||
lumaRED = 77; lumaGREEN = 151; lumaBLUE = 28;
|
||
dlumaRED = 0.077;dlumaGREEN = 0.151; dlumaBLUE = 0.028;
|
||
break;
|
||
|
||
case 411: /* The GIMP color managed */
|
||
lumaRED = 223; lumaGREEN = 717; lumaBLUE = 61;
|
||
dlumaRED = 0.2225; dlumaGREEN = 0.7169; dlumaBLUE = 0.0606;
|
||
break;
|
||
|
||
case 709: /* CCIR 709 - modern */
|
||
/* ImageMagick non-color managed */
|
||
lumaRED = 213; lumaGREEN = 715; lumaBLUE = 72;
|
||
dlumaRED = 0.212656;dlumaGREEN = 0.715158; dlumaBLUE = 0.072186;
|
||
break;
|
||
|
||
case 601: /* CCIR 601 - most digital standard definition formats */
|
||
default: lumaRED = 299; lumaGREEN = 587; lumaBLUE = 114;
|
||
dlumaRED = 0.299; dlumaGREEN = 0.587; dlumaBLUE = 0.114;
|
||
break;
|
||
|
||
|
||
}
|
||
}
|
||
|
||
|
||
/* intialize the values for the current palette */
|
||
void InitDoubleArrays()
|
||
{
|
||
int i;
|
||
double dr, dg, db, dthreshold;
|
||
unsigned r, g, b;
|
||
|
||
/* array for matching closest color in palette */
|
||
for (i=0;i<16;i++) {
|
||
rgbDouble[i][0] = dr = (double) rgbArray[i][0];
|
||
rgbDouble[i][1] = dg = (double) rgbArray[i][1];
|
||
rgbDouble[i][2] = db = (double) rgbArray[i][2];
|
||
rgbLuma[i] = (dr*lumaRED + dg*lumaGREEN + db*lumaBLUE) / (255.0*1000);
|
||
}
|
||
|
||
/* array for matching closest color in palette
|
||
threshold reduced by 25% */
|
||
|
||
if (threshold == 0) {
|
||
dthreshold = 0.75;
|
||
}
|
||
else {
|
||
dthreshold = (double) threshold;
|
||
if (xmatrix != 2) dthreshold *= 0.5;
|
||
dthreshold = (double) (100.0 - dthreshold) / 100;
|
||
|
||
}
|
||
|
||
for (i=0;i<16;i++) {
|
||
dr = (double) rgbArray[i][0];
|
||
dg = (double) rgbArray[i][1];
|
||
db = (double) rgbArray[i][2];
|
||
|
||
dr *= dthreshold;
|
||
dg *= dthreshold;
|
||
db *= dthreshold;
|
||
|
||
rgbDoubleBrighten[i][0] = dr;
|
||
rgbDoubleBrighten[i][1] = dg;
|
||
rgbDoubleBrighten[i][2] = db;
|
||
rgbLumaBrighten[i] = (dr*lumaRED + dg*lumaGREEN + db*lumaBLUE) / (255.0*1000);
|
||
}
|
||
|
||
if (threshold == 0) {
|
||
dthreshold = 1.25;
|
||
}
|
||
else {
|
||
dthreshold = (double) threshold;
|
||
if (xmatrix != 2) dthreshold *= 0.5;
|
||
dthreshold = (double) (100.0 + dthreshold) / 100;
|
||
}
|
||
|
||
for (i=0;i<16;i++) {
|
||
dr = (double) rgbArray[i][0];
|
||
dg = (double) rgbArray[i][1];
|
||
db = (double) rgbArray[i][2];
|
||
|
||
dr *= dthreshold;
|
||
if (dr > 255.0) dr = 255.0;
|
||
dg *= dthreshold;
|
||
if (dg > 255.0) dg = 255.0;
|
||
db *= dthreshold;
|
||
if (db > 255.0) db = 255.0;
|
||
|
||
rgbDoubleDarken[i][0] = dr;
|
||
rgbDoubleDarken[i][1] = dg;
|
||
rgbDoubleDarken[i][2] = db;
|
||
rgbLumaDarken[i] = (dr*lumaRED + dg*lumaGREEN + db*lumaBLUE) / (255.0*1000);
|
||
}
|
||
}
|
||
|
||
|
||
/* select current palette */
|
||
void GetBuiltinPalette(int16_t palidx, int16_t previewidx, int16_t pseudo)
|
||
{
|
||
int16_t i,j;
|
||
uint8_t r,g,b;
|
||
|
||
/* set conversion colors */
|
||
switch(palidx) {
|
||
case 16:/* optional NTSC palette from tohgr - used for HGR conversion */
|
||
for (i=0;i<16;i++) {
|
||
rgbArray[i][0] = hgrpal[i][0];
|
||
rgbArray[i][1] = hgrpal[i][1];
|
||
rgbArray[i][2] = hgrpal[i][2];
|
||
}
|
||
break;
|
||
case 15:
|
||
/* the infamous pseudo palette */
|
||
for (i=0;i<16;i++) {
|
||
rgbArray[i][0] = PseudoPalette[i][0];
|
||
rgbArray[i][1] = PseudoPalette[i][1];
|
||
rgbArray[i][2] = PseudoPalette[i][2];
|
||
}
|
||
break;
|
||
case 14: /* Robert Munafo - http://mrob.com/pub/xapple2/colors.html */
|
||
/* NTSC Palette used by Cybernesto in VBMP GIMP tutorial */
|
||
for (i=0;i<16;i++) {
|
||
rgbArray[i][0] = Cybernesto[i][0];
|
||
rgbArray[i][1] = Cybernesto[i][1];
|
||
rgbArray[i][2] = Cybernesto[i][2];
|
||
}
|
||
break;
|
||
case 13: /* Jace emulator NTSC palette */
|
||
for (i=0;i<16;i++) {
|
||
rgbArray[i][0] = Jace[i][0];
|
||
rgbArray[i][1] = Jace[i][1];
|
||
rgbArray[i][2] = Jace[i][2];
|
||
}
|
||
break;
|
||
case 12: /* Super Convert HGR and DHGR conversion colors */
|
||
/* same as kegs32 colors */
|
||
for (i=0;i<16;i++) {
|
||
rgbArray[i][0] = SuperConvert[i][0];
|
||
rgbArray[i][1] = SuperConvert[i][1];
|
||
rgbArray[i][2] = SuperConvert[i][2];
|
||
}
|
||
break;
|
||
/* 5 IBM-PC legacy palettes from BMPA2FC */
|
||
/* used for color substitution - not Apple II colors */
|
||
case 11: for (i=0;i<16;i++) {
|
||
/* default colors from some old ZSoft 16 color PCX */
|
||
rgbArray[i][0] = rgbPcxArray[i][0];
|
||
rgbArray[i][1] = rgbPcxArray[i][1];
|
||
rgbArray[i][2] = rgbPcxArray[i][2];
|
||
}
|
||
break;
|
||
case 10: for (i=0;i<16;i++) {
|
||
/* colors from VGA bios */
|
||
rgbArray[i][0] = rgbVgaArray[i][0];
|
||
rgbArray[i][1] = rgbVgaArray[i][1];
|
||
rgbArray[i][2] = rgbVgaArray[i][2];
|
||
}
|
||
break;
|
||
case 9: for (i=0;i<16;i++) {
|
||
/* colors from Windows Paint XP - 16 color BMP */
|
||
rgbArray[i][0] = rgbXmpArray[i][0];
|
||
rgbArray[i][1] = rgbXmpArray[i][1];
|
||
rgbArray[i][2] = rgbXmpArray[i][2];
|
||
}
|
||
break;
|
||
case 8: for (i=0;i<16;i++) {
|
||
/* colors from MSPaint Windows 3.1 - 16 color BMP */
|
||
rgbArray[i][0] = rgbBmpArray[i][0];
|
||
rgbArray[i][1] = rgbBmpArray[i][1];
|
||
rgbArray[i][2] = rgbBmpArray[i][2];
|
||
}
|
||
break;
|
||
case 7: for (i=0;i<16;i++) {
|
||
/* "canvas" colors from BmpA2FC */
|
||
rgbArray[i][0] = rgbCanvasArray[i][0];
|
||
rgbArray[i][1] = rgbCanvasArray[i][1];
|
||
rgbArray[i][2] = rgbCanvasArray[i][2];
|
||
}
|
||
break;
|
||
case 6: /* user definable imported palette file */
|
||
for (i=0;i<16;i++) {
|
||
rgbArray[i][0] = rgbUser[i][0];
|
||
rgbArray[i][1] = rgbUser[i][1];
|
||
rgbArray[i][2] = rgbUser[i][2];
|
||
}
|
||
break;
|
||
case 4: /* wikipedia Apple II NTSC colors */
|
||
for (i=0;i<16;i++) {
|
||
rgbArray[i][0] = wikipedia[i][0];
|
||
rgbArray[i][1] = wikipedia[i][1];
|
||
rgbArray[i][2] = wikipedia[i][2];
|
||
}
|
||
break;
|
||
case 3: /* Current AppleWin Version's sort-of NTSC colors */
|
||
for (i=0;i<16;i++) {
|
||
rgbArray[i][0] = awinnewcolors[i][0];
|
||
rgbArray[i][1] = awinnewcolors[i][1];
|
||
rgbArray[i][2] = awinnewcolors[i][2];
|
||
}
|
||
break;
|
||
case 2: /* Previous AppleWin Version's sort-of NTSC colors */
|
||
for (i=0;i<16;i++) {
|
||
rgbArray[i][0] = awinoldcolors[i][0];
|
||
rgbArray[i][1] = awinoldcolors[i][1];
|
||
rgbArray[i][2] = awinoldcolors[i][2];
|
||
}
|
||
break;
|
||
case 1: /* CiderPress RGB File Viewer colors */
|
||
for (i=0;i<16;i++) {
|
||
rgbArray[i][0] = ciderpresscolors[i][0];
|
||
rgbArray[i][1] = ciderpresscolors[i][1];
|
||
rgbArray[i][2] = ciderpresscolors[i][2];
|
||
}
|
||
break;
|
||
case 0: /* kegs32 RGB colors - same as Super Convert */
|
||
for (i=0;i<16;i++) {
|
||
rgbArray[i][0] = kegs32colors[i][0];
|
||
rgbArray[i][1] = kegs32colors[i][1];
|
||
rgbArray[i][2] = kegs32colors[i][2];
|
||
}
|
||
break;
|
||
case 5: /* NTSC palette from tohgr - used for default HGR and DHGR conversion */
|
||
default:
|
||
for (i=0;i<16;i++) {
|
||
rgbArray[i][0] = grpal[i][0];
|
||
rgbArray[i][1] = grpal[i][1];
|
||
rgbArray[i][2] = grpal[i][2];
|
||
}
|
||
palidx = 5;
|
||
break;
|
||
}
|
||
|
||
/* set preview colors */
|
||
switch(previewidx) {
|
||
case 16:/* HGR conversion - optional palette from tohgr */
|
||
for (i=0;i<16;i++) {
|
||
rgbPreview[i][0] = hgrpal[i][0];
|
||
rgbPreview[i][1] = hgrpal[i][1];
|
||
rgbPreview[i][2] = hgrpal[i][2];
|
||
}
|
||
break;
|
||
case 15: /* the infamous pseudo palette */
|
||
for (i=0;i<16;i++) {
|
||
rgbPreview[i][0] = PseudoPalette[i][0];
|
||
rgbPreview[i][1] = PseudoPalette[i][1];
|
||
rgbPreview[i][2] = PseudoPalette[i][2];
|
||
}
|
||
break;
|
||
case 14: /* Robert Munafo - http://mrob.com/pub/xapple2/colors.html */
|
||
/* NTSC Palette used by Cybernesto in VBMP GIMP tutorial */
|
||
for (i=0;i<16;i++) {
|
||
rgbPreview[i][0] = Cybernesto[i][0];
|
||
rgbPreview[i][1] = Cybernesto[i][1];
|
||
rgbPreview[i][2] = Cybernesto[i][2];
|
||
}
|
||
break;
|
||
case 13: /* Jace emulator NTSC palette */
|
||
for (i=0;i<16;i++) {
|
||
rgbPreview[i][0] = Jace[i][0];
|
||
rgbPreview[i][1] = Jace[i][1];
|
||
rgbPreview[i][2] = Jace[i][2];
|
||
}
|
||
break;
|
||
case 12: /* Super Convert HGR and DHGR conversion colors */
|
||
/* same as kegs32 colors */
|
||
for (i=0;i<16;i++) {
|
||
rgbPreview[i][0] = SuperConvert[i][0];
|
||
rgbPreview[i][1] = SuperConvert[i][1];
|
||
rgbPreview[i][2] = SuperConvert[i][2];
|
||
}
|
||
break;
|
||
/* 5 IBM-PC VGA legacy palettes from BMPA2FC */
|
||
/* used for color substitution - not Apple II colors */
|
||
case 11: for (i=0;i<16;i++) {
|
||
/* default colors from some old ZSoft 16 color PCX */
|
||
rgbPreview[i][0] = rgbPcxArray[i][0];
|
||
rgbPreview[i][1] = rgbPcxArray[i][1];
|
||
rgbPreview[i][2] = rgbPcxArray[i][2];
|
||
}
|
||
break;
|
||
case 10: for (i=0;i<16;i++) {
|
||
/* colors from VGA bios */
|
||
rgbPreview[i][0] = rgbVgaArray[i][0];
|
||
rgbPreview[i][1] = rgbVgaArray[i][1];
|
||
rgbPreview[i][2] = rgbVgaArray[i][2];
|
||
}
|
||
break;
|
||
case 9: for (i=0;i<16;i++) {
|
||
/* colors from Windows Paint XP - 16 color BMP */
|
||
rgbPreview[i][0] = rgbXmpArray[i][0];
|
||
rgbPreview[i][1] = rgbXmpArray[i][1];
|
||
rgbPreview[i][2] = rgbXmpArray[i][2];
|
||
}
|
||
break;
|
||
case 8: for (i=0;i<16;i++) {
|
||
/* colors from MSPaint Windows 3.1 - 16 color BMP */
|
||
rgbPreview[i][0] = rgbBmpArray[i][0];
|
||
rgbPreview[i][1] = rgbBmpArray[i][1];
|
||
rgbPreview[i][2] = rgbBmpArray[i][2];
|
||
}
|
||
break;
|
||
case 7: for (i=0;i<16;i++) {
|
||
/* "canvas" colors from BmpA2FC */
|
||
rgbPreview[i][0] = rgbCanvasArray[i][0];
|
||
rgbPreview[i][1] = rgbCanvasArray[i][1];
|
||
rgbPreview[i][2] = rgbCanvasArray[i][2];
|
||
}
|
||
break;
|
||
case 6: /* user definable imported palette file */
|
||
for (i=0;i<16;i++) {
|
||
rgbPreview[i][0] = rgbUser[i][0];
|
||
rgbPreview[i][1] = rgbUser[i][1];
|
||
rgbPreview[i][2] = rgbUser[i][2];
|
||
}
|
||
break;
|
||
case 4: /* wikipedia Apple II NTSC colors */
|
||
for (i=0;i<16;i++) {
|
||
rgbPreview[i][0] = wikipedia[i][0];
|
||
rgbPreview[i][1] = wikipedia[i][1];
|
||
rgbPreview[i][2] = wikipedia[i][2];
|
||
}
|
||
break;
|
||
case 3: /* Current AppleWin Version's sort-of NTSC colors */
|
||
for (i=0;i<16;i++) {
|
||
rgbPreview[i][0] = awinnewcolors[i][0];
|
||
rgbPreview[i][1] = awinnewcolors[i][1];
|
||
rgbPreview[i][2] = awinnewcolors[i][2];
|
||
}
|
||
break;
|
||
case 2: /* Previous AppleWin Version's sort-of NTSC colors */
|
||
for (i=0;i<16;i++) {
|
||
rgbPreview[i][0] = awinoldcolors[i][0];
|
||
rgbPreview[i][1] = awinoldcolors[i][1];
|
||
rgbPreview[i][2] = awinoldcolors[i][2];
|
||
}
|
||
break;
|
||
case 1: /* CiderPress RGB File Viewer colors */
|
||
for (i=0;i<16;i++) {
|
||
rgbPreview[i][0] = ciderpresscolors[i][0];
|
||
rgbPreview[i][1] = ciderpresscolors[i][1];
|
||
rgbPreview[i][2] = ciderpresscolors[i][2];
|
||
}
|
||
break;
|
||
case 0: /* kegs32 RGB colors - same as Super Convert */
|
||
for (i=0;i<16;i++) {
|
||
rgbPreview[i][0] = kegs32colors[i][0];
|
||
rgbPreview[i][1] = kegs32colors[i][1];
|
||
rgbPreview[i][2] = kegs32colors[i][2];
|
||
}
|
||
break;
|
||
case 5: /* NTSC palette from tohgr - used for default HGR and DHGR conversion */
|
||
default:
|
||
for (i=0;i<16;i++) {
|
||
rgbPreview[i][0] = grpal[i][0];
|
||
rgbPreview[i][1] = grpal[i][1];
|
||
rgbPreview[i][2] = grpal[i][2];
|
||
}
|
||
previewidx = 5;
|
||
break;
|
||
}
|
||
|
||
/* set-up the HGR conversion palette based-on the colors that were removed from palette 5 */
|
||
/* 3 options are available - 6 colors, 4 color Orange-Blue, or 4 color Green-Violet */
|
||
if (hgroutput == 1) {
|
||
for (i=0;i<16;i++) {
|
||
if (grpal[i][0] == 0 && grpal[i][1] == 0 && grpal[i][2] == 0) {
|
||
rgbPreview[i][0] = rgbArray[i][0] = 0;
|
||
rgbPreview[i][1] = rgbArray[i][1] = 0;
|
||
rgbPreview[i][2] = rgbArray[i][2] = 0;
|
||
}
|
||
}
|
||
}
|
||
|
||
for (i=0;i<16;i++) {
|
||
/* verbatim match - 4-bits deep not 8 */
|
||
rgbAppleArray[i][0] = rgbArray[i][0] >> 4;
|
||
rgbAppleArray[i][1] = rgbArray[i][1] >> 4;
|
||
rgbAppleArray[i][2] = rgbArray[i][2] >> 4;
|
||
/* match VBMP color palette to the current conversion palette */
|
||
rgbVBMP[i][0] = rgbArray[i][0];
|
||
rgbVBMP[i][1] = rgbArray[i][1];
|
||
rgbVBMP[i][2] = rgbArray[i][2];
|
||
}
|
||
|
||
/* no need to clip mono - the mono palette has only 2 colors */
|
||
if (paletteclip == 1 && mono == 0) {
|
||
/* command options "CV" or "CP" (clip view or clip palette) */
|
||
/* not implemented for preview or for verbatim match */
|
||
/* note that verbatim match is only 4-bits deep so already clips */
|
||
|
||
/* clipping filter for dirty blacks and whites */
|
||
/* borrowed from Sheldon Simms */
|
||
/* but this may have other adverse effects so it is optional */
|
||
rgbArray[0][RED] = 1;
|
||
rgbArray[0][GREEN] = 4;
|
||
rgbArray[0][BLUE] = 8;
|
||
|
||
rgbArray[15][RED] = 248;
|
||
rgbArray[15][GREEN] = 250;
|
||
rgbArray[15][BLUE] = 244;
|
||
}
|
||
|
||
if(pseudo != 1) {
|
||
if (quietmode == 1) {
|
||
if (mono == 1) puts("Black and White Monochrome Palette");
|
||
else printf("Palette %d: %s Colors\nPreview Palette %d: %s Colors\n",palidx,palname[palidx],previewidx,palname[previewidx]);
|
||
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
/* build pseudo-palettes by using the average rgb values of two or more palettes into one */
|
||
/* called from main() before setting the palettes
|
||
and after an external user definable palette has been set (if any) */
|
||
void BuildPseudoPalette(int16_t palidx)
|
||
{
|
||
|
||
int16_t i,j,k,idx;
|
||
uint16_t gun;
|
||
|
||
/* a pseudopalette cannot be used if palette 15 is selected as a conversion palette */
|
||
if ((palidx < 0 || palidx > 16) || palidx == 15) return;
|
||
|
||
|
||
/* get the initial values */
|
||
/* call the palette routine before it is actually used to select the
|
||
conversion and preview palette to avoid doing so much duplicate code */
|
||
GetBuiltinPalette(palidx,palidx,1);
|
||
for (i=0;i<16;i++) {
|
||
for (j=0;j<3;j++) {
|
||
pseudowork[i][j] = (uint16_t)rgbArray[i][j];
|
||
}
|
||
}
|
||
|
||
/* merge the values from the work buffers into the pseudo-palette */
|
||
/* accumulate the additional values */
|
||
for (k = 0; k < pseudocount;k++) {
|
||
idx = pseudolist[k];
|
||
GetBuiltinPalette(idx,idx,1);
|
||
for (i=0;i<16;i++) {
|
||
for (j=0;j<3;j++) {
|
||
pseudowork[i][j] += rgbArray[i][j];
|
||
}
|
||
}
|
||
}
|
||
|
||
pseudocount++;
|
||
for (i=0;i<16;i++) {
|
||
for (j=0;j<3;j++) {
|
||
/* basic linear color distance */
|
||
/* use the average rgb values */
|
||
/* no attempt to avoid rounding */
|
||
gun = pseudowork[i][j]/pseudocount;
|
||
PseudoPalette[i][j] = (uint8_t)gun;
|
||
}
|
||
}
|
||
pseudocount--;
|
||
|
||
/* if quiet mode is set print the final values */
|
||
if (outputtype != SPRITE_OUTPUT) {
|
||
if (quietmode == 0){
|
||
/* rgb values can be redirected to a text file and used as an external palette
|
||
for subsequnet conversions and/or whatever else this is useful for */
|
||
for (i=0;i<16;i++)
|
||
printf("%d,%d,%d\n",PseudoPalette[i][0],PseudoPalette[i][1],PseudoPalette[i][2]);
|
||
}
|
||
}
|
||
|
||
/* for normal output print the palette list */
|
||
if (quietmode == 1) {
|
||
printf("Pseudo Palette: %d (%s)",palidx,palname[palidx]);
|
||
for (k = 0; k < pseudocount;k++) {
|
||
idx = pseudolist[k];
|
||
printf(" + %d (%s)",idx,palname[idx]);
|
||
}
|
||
printf("\n");
|
||
}
|
||
}
|
||
|
||
/* use CCIR 601 luminosity to get closest color in current palette */
|
||
/* based on palette that has been selected for conversion */
|
||
uint8_t GetMedColor(uint8_t r, uint8_t g, uint8_t b, double *paldistance)
|
||
{
|
||
uint8_t drawcolor;
|
||
double dr, dg, db, diffR, diffG, diffB, luma, lumadiff, distance, prevdistance;
|
||
int i;
|
||
|
||
dr = (double)r;
|
||
dg = (double)g;
|
||
db = (double)b;
|
||
luma = (dr*lumaRED + dg*lumaGREEN + db*lumaBLUE) / (255.0*1000);
|
||
lumadiff = rgbLuma[0]-luma;
|
||
|
||
/* Compare the difference of RGB values, weigh by CCIR 601 luminosity */
|
||
/* set palette index to color with shortest distance */
|
||
|
||
/* get color distance to first palette color */
|
||
diffR = (rgbDouble[0][0]-dr)/255.0;
|
||
diffG = (rgbDouble[0][1]-dg)/255.0;
|
||
diffB = (rgbDouble[0][2]-db)/255.0;
|
||
|
||
prevdistance = (diffR*diffR*dlumaRED + diffG*diffG*dlumaGREEN + diffB*diffB*dlumaGREEN)*0.75
|
||
+ lumadiff*lumadiff;
|
||
/* set palette index to first color */
|
||
drawcolor = 0;
|
||
paldistance[0] = prevdistance;
|
||
|
||
/* get color distance to rest of palette colors */
|
||
for (i=1;i<16;i++) {
|
||
|
||
/* error test for doing dithered HGR */
|
||
/* test with a 4 color palette */
|
||
if (dither7 != (uint8_t) 0) {
|
||
/* dither7 is set in FloydSteinberg() function */
|
||
if (dither7 == 'O') {
|
||
/* 'O' - orange-blue palette */
|
||
if (i != LOMEDBLUE && i!= LOORANGE && i!= LOWHITE) continue;
|
||
}
|
||
else {
|
||
/* 'G' - green-violet palette */
|
||
if (i != LOPURPLE && i!= LOLTGREEN && i!= LOWHITE) continue;
|
||
}
|
||
}
|
||
|
||
/* get color distance of this index */
|
||
lumadiff = rgbLuma[i]-luma;
|
||
diffR = (rgbDouble[i][0]-dr)/255.0;
|
||
diffG = (rgbDouble[i][1]-dg)/255.0;
|
||
diffB = (rgbDouble[i][2]-db)/255.0;
|
||
distance = (diffR*diffR*dlumaRED + diffG*diffG*dlumaGREEN + diffB*diffB*dlumaGREEN)*0.75
|
||
+ lumadiff*lumadiff;
|
||
|
||
/* if distance is smaller use this index */
|
||
if (distance < prevdistance) {
|
||
prevdistance = distance;
|
||
paldistance[0] = prevdistance;
|
||
drawcolor = (uint8_t)i;
|
||
}
|
||
|
||
}
|
||
return drawcolor;
|
||
}
|
||
|
||
|
||
/* use CCIR 601 luminosity to get closest color in current palette */
|
||
/* match values have been decreased by user-defined threshold */
|
||
/* brightens darker colors by promoting them */
|
||
uint8_t GetHighColor(uint8_t r, uint8_t g, uint8_t b, double *paldistance)
|
||
{
|
||
uint8_t drawcolor;
|
||
double dr, dg, db, diffR, diffG, diffB, luma, lumadiff, distance, prevdistance;
|
||
int i;
|
||
|
||
dr = (double)r;
|
||
dg = (double)g;
|
||
db = (double)b;
|
||
luma = (dr*lumaRED + dg*lumaGREEN + db*lumaBLUE) / (255.0*1000);
|
||
lumadiff = rgbLumaBrighten[0]-luma;
|
||
|
||
/* Compare the difference of RGB values, weigh by CCIR 601 luminosity */
|
||
/* set palette index to color with shortest distance */
|
||
|
||
/* get color distance to first palette color */
|
||
diffR = (rgbDoubleBrighten[0][0]-dr)/255.0;
|
||
diffG = (rgbDoubleBrighten[0][1]-dg)/255.0;
|
||
diffB = (rgbDoubleBrighten[0][2]-db)/255.0;
|
||
|
||
prevdistance = (diffR*diffR*dlumaRED + diffG*diffG*dlumaGREEN + diffB*diffB*dlumaGREEN)*0.75
|
||
+ lumadiff*lumadiff;
|
||
/* set palette index to first color */
|
||
drawcolor = 0;
|
||
paldistance[0] = prevdistance;
|
||
|
||
/* get color distance to rest of palette colors */
|
||
for (i=1;i<16;i++) {
|
||
|
||
/* error test for doing dithered HGR */
|
||
/* test with a 4 color palette */
|
||
if (dither7 != (uint8_t) 0) {
|
||
/* dither7 is set in FloydSteinberg() function */
|
||
if (dither7 == 'O') {
|
||
/* 'O' - orange-blue palette */
|
||
if (i != LOMEDBLUE && i!= LOORANGE && i!= LOWHITE) continue;
|
||
}
|
||
else {
|
||
/* 'G' - green-violet palette */
|
||
if (i != LOPURPLE && i!= LOLTGREEN && i!= LOWHITE) continue;
|
||
}
|
||
}
|
||
|
||
/* get color distance of to this index */
|
||
lumadiff = rgbLumaBrighten[i]-luma;
|
||
diffR = (rgbDoubleBrighten[i][0]-dr)/255.0;
|
||
diffG = (rgbDoubleBrighten[i][1]-dg)/255.0;
|
||
diffB = (rgbDoubleBrighten[i][2]-db)/255.0;
|
||
distance = (diffR*diffR*dlumaRED + diffG*diffG*dlumaGREEN + diffB*diffB*dlumaGREEN)*0.75
|
||
+ lumadiff*lumadiff;
|
||
|
||
/* if distance is smaller use this index */
|
||
if (distance < prevdistance) {
|
||
prevdistance = distance;
|
||
paldistance[0] = prevdistance;
|
||
drawcolor = (uint8_t)i;
|
||
}
|
||
|
||
}
|
||
return drawcolor;
|
||
}
|
||
|
||
/* use CCIR 601 luminosity to get closest color in current palette */
|
||
/* match values have been increased by user-defined threshold */
|
||
/* darkens lighter colors by demoting them */
|
||
uint8_t GetLowColor(uint8_t r, uint8_t g, uint8_t b, double *paldistance)
|
||
{
|
||
uint8_t drawcolor;
|
||
double dr, dg, db, diffR, diffG, diffB, luma, lumadiff, distance, prevdistance;
|
||
int i;
|
||
|
||
dr = (double)r;
|
||
dg = (double)g;
|
||
db = (double)b;
|
||
luma = (dr*lumaRED + dg*lumaGREEN + db*lumaBLUE) / (255.0*1000);
|
||
lumadiff = rgbLumaDarken[0]-luma;
|
||
|
||
/* Compare the difference of RGB values, weigh by CCIR 601 luminosity */
|
||
/* set palette index to color with shortest distance */
|
||
|
||
/* get color distance to first palette color */
|
||
diffR = (rgbDoubleDarken[0][0]-dr)/255.0;
|
||
diffG = (rgbDoubleDarken[0][1]-dg)/255.0;
|
||
diffB = (rgbDoubleDarken[0][2]-db)/255.0;
|
||
|
||
prevdistance = (diffR*diffR*dlumaRED + diffG*diffG*dlumaGREEN + diffB*diffB*dlumaGREEN)*0.75
|
||
+ lumadiff*lumadiff;
|
||
/* set palette index to first color */
|
||
drawcolor = 0;
|
||
paldistance[0] = prevdistance;
|
||
|
||
/* get color distance to rest of palette colors */
|
||
for (i=1;i<16;i++) {
|
||
|
||
/* error test for doing dithered HGR */
|
||
/* test with a 4 color palette */
|
||
if (dither7 != (uint8_t) 0) {
|
||
/* dither7 is set in FloydSteinberg() function */
|
||
if (dither7 == 'O') {
|
||
/* 'O' - orange-blue palette */
|
||
if (i != LOMEDBLUE && i!= LOORANGE && i!= LOWHITE) continue;
|
||
}
|
||
else {
|
||
/* 'G' - green-violet palette */
|
||
if (i != LOPURPLE && i!= LOLTGREEN && i!= LOWHITE) continue;
|
||
}
|
||
}
|
||
|
||
/* get color distance of to this index */
|
||
lumadiff = rgbLumaDarken[i]-luma;
|
||
diffR = (rgbDoubleDarken[i][0]-dr)/255.0;
|
||
diffG = (rgbDoubleDarken[i][1]-dg)/255.0;
|
||
diffB = (rgbDoubleDarken[i][2]-db)/255.0;
|
||
distance = (diffR*diffR*dlumaRED + diffG*diffG*dlumaGREEN + diffB*diffB*dlumaGREEN)*0.75
|
||
+ lumadiff*lumadiff;
|
||
|
||
/* if distance is smaller use this index */
|
||
if (distance < prevdistance) {
|
||
prevdistance = distance;
|
||
paldistance[0] = prevdistance;
|
||
drawcolor = (uint8_t)i;
|
||
}
|
||
|
||
}
|
||
return drawcolor;
|
||
}
|
||
|
||
/* switchboard function to handle cross-hatched and non-cross-hatched output */
|
||
/* keeps the conditionals out of the main loop */
|
||
uint8_t GetDrawColor(uint8_t r, uint8_t g, uint8_t b, int x, int y)
|
||
{
|
||
|
||
/* additional vars for future */
|
||
double distance, lowdistance, highdistance;
|
||
uint8_t drawcolor, lowcolor, highcolor;
|
||
uint8_t red = (uint8_t)(r >> 4),
|
||
green = (uint8_t)(g >> 4),
|
||
blue = (uint8_t)(b >> 4);
|
||
int i;
|
||
|
||
/* quick check for verbatim match */
|
||
for (i = 0; i < 16; i++) {
|
||
|
||
/* error test for doing dithered HGR */
|
||
/* test with a 4 color palette */
|
||
if (i!= 0 && dither7 != (uint8_t) 0) {
|
||
/* dither7 is set in FloydSteinberg() function */
|
||
if (dither7 == 'O') {
|
||
/* 'O' - orange-blue palette */
|
||
if (i != LOMEDBLUE && i!= LOORANGE && i!= LOWHITE) continue;
|
||
}
|
||
else {
|
||
/* 'G' - green-violet palette */
|
||
if (i != LOPURPLE && i!= LOLTGREEN && i!= LOWHITE) continue;
|
||
}
|
||
}
|
||
|
||
if (rgbAppleArray[i][0] == red &&
|
||
rgbAppleArray[i][1] == green &&
|
||
rgbAppleArray[i][2] == blue) return (uint8_t)i;
|
||
|
||
}
|
||
|
||
/* non-cross-hatched output */
|
||
if (threshold == 0 && ymatrix == 0) return GetMedColor(r,g,b,&distance);
|
||
|
||
if (ymatrix != 0) {
|
||
switch(ymatrix) {
|
||
case 1: return GetLowColor(r,g,b,&lowdistance);
|
||
case 3: return GetHighColor(r,g,b,&highdistance);
|
||
case 2:
|
||
default:return GetMedColor(r,g,b,&distance);
|
||
}
|
||
}
|
||
|
||
/* patterned cross-hatching */
|
||
/* the thresholds are percentage based */
|
||
/* with a user definable threshold */
|
||
|
||
switch(xmatrix)
|
||
{
|
||
/* patterns 1, 2, 3 - 2 x 2 patterned cross-hatching */
|
||
case 1:
|
||
/* low, med
|
||
med, low
|
||
*/
|
||
if (y % 2 == 0) {
|
||
if (x%2 == 1) return GetMedColor(r,g,b,&distance);
|
||
return GetLowColor(r,g,b,&lowdistance);
|
||
}
|
||
if (x%2 == 0) return GetMedColor(r,g,b,&distance);
|
||
return GetLowColor(r,g,b,&lowdistance);
|
||
|
||
case 3:
|
||
/* high, med
|
||
med, high
|
||
*/
|
||
if (y % 2 == 0) {
|
||
if (x%2 == 1) return GetMedColor(r,g,b,&distance);
|
||
return GetHighColor(r,g,b,&highdistance);
|
||
}
|
||
if (x%2 == 0) return GetMedColor(r,g,b,&distance);
|
||
return GetHighColor(r,g,b,&highdistance);
|
||
|
||
case 2:
|
||
default:
|
||
/* high, low
|
||
low, high
|
||
*/
|
||
if (y % 2 == 0) {
|
||
if (x%2 == 1) return GetLowColor(r,g,b,&lowdistance);
|
||
return GetHighColor(r,g,b,&highdistance);
|
||
}
|
||
if (x%2 == 0) return GetLowColor(r,g,b,&lowdistance);
|
||
return GetHighColor(r,g,b,&highdistance);
|
||
|
||
}
|
||
|
||
#ifndef TURBOC
|
||
/* never gets to here */
|
||
return GetMedColor(r,g,b,&distance);
|
||
#endif
|
||
|
||
}
|
||
|
||
/* routines to save to Apple 2 Double Hires Format */
|
||
/* a double hi-res pixel can occur at any one of 7 positions */
|
||
/* in a 4 byte block which spans aux and main screen memory */
|
||
/* the horizontal resolution is 140 pixels */
|
||
void dhrplot(int x,int y,uint8_t drawcolor)
|
||
{
|
||
int xoff, pattern;
|
||
uint8_t *ptraux, *ptrmain;
|
||
|
||
pattern = (x%7);
|
||
xoff = HB[y] + ((x/7) * 2);
|
||
ptraux = (uint8_t *) &dhrbuf[xoff-0x2000];
|
||
ptrmain = (uint8_t *) &dhrbuf[xoff];
|
||
|
||
|
||
switch(pattern)
|
||
{
|
||
/* left this here for reference
|
||
|
||
uint8_t dhrpattern[7][4] = {
|
||
0,0,0,0,
|
||
0,0,0,1,
|
||
1,1,1,1,
|
||
1,1,2,2,
|
||
2,2,2,2,
|
||
2,3,3,3,
|
||
3,3,3,3};
|
||
*/
|
||
|
||
case 0: ptraux[0] &= 0x70;
|
||
ptraux[0] |= dhrbytes[drawcolor][0] &0x0f;
|
||
break;
|
||
case 1: ptraux[0] &= 0x0f;
|
||
ptraux[0] |= dhrbytes[drawcolor][0] & 0x70;
|
||
ptrmain[0] &= 0x7e;
|
||
ptrmain[0] |= dhrbytes[drawcolor][1] & 0x01;
|
||
break;
|
||
case 2: ptrmain[0] &= 0x61;
|
||
ptrmain[0] |= dhrbytes[drawcolor][1] & 0x1e;
|
||
break;
|
||
case 3: ptrmain[0] &= 0x1f;
|
||
ptrmain[0] |= dhrbytes[drawcolor][1] & 0x60;
|
||
ptraux[1] &= 0x7c;
|
||
ptraux[1] |= dhrbytes[drawcolor][2] & 0x03;
|
||
break;
|
||
case 4: ptraux[1] &= 0x43;
|
||
ptraux[1] |= dhrbytes[drawcolor][2] & 0x3c;
|
||
break;
|
||
case 5: ptraux[1] &= 0x3f;
|
||
ptraux[1] |= dhrbytes[drawcolor][2] & 0x40;
|
||
ptrmain[1] &= 0x78;
|
||
ptrmain[1] |= dhrbytes[drawcolor][3] & 0x07;
|
||
break;
|
||
case 6: ptrmain[1] &= 0x07;
|
||
ptrmain[1] |= dhrbytes[drawcolor][3] & 0x78;
|
||
break;
|
||
}
|
||
|
||
}
|
||
|
||
|
||
/* monochrome DHGR - 560 x 192 */
|
||
unsigned char dhbmono[] = {0x7e,0x7d,0x7b,0x77,0x6f,0x5f,0x3f};
|
||
unsigned char dhwmono[] = {0x1,0x2,0x4,0x8,0x10,0x20,0x40};
|
||
|
||
void dhrmonoplot(int x, int y, uint8_t drawcolor)
|
||
{
|
||
|
||
int xoff, pixel;
|
||
uint8_t *ptr;
|
||
|
||
if (x > 559) return;
|
||
|
||
xoff = HB[y] + (x/14);
|
||
pixel = (x%14);
|
||
if (pixel > 6) {
|
||
/* main memory */
|
||
pixel -= 7;
|
||
ptr = (uint8_t *) &dhrbuf[xoff];
|
||
}
|
||
else {
|
||
/* auxiliary memory */
|
||
ptr = (uint8_t *) &dhrbuf[xoff-0x2000];
|
||
}
|
||
|
||
if (drawcolor != 0) {
|
||
/* white */
|
||
ptr[0] |= dhwmono[pixel]; /* inclusive OR */
|
||
}
|
||
else {
|
||
/* black */
|
||
ptr[0] &= dhbmono[pixel]; /* bitwise AND */
|
||
}
|
||
|
||
}
|
||
|
||
/* monochrome HGR 280 x 192 */
|
||
void hrmonoplot(int x, int y, uint8_t drawcolor)
|
||
{
|
||
|
||
int xoff, pixel;
|
||
uint8_t *ptr;
|
||
|
||
if (x > 279) return;
|
||
|
||
xoff = HB[y] + (x/7);
|
||
pixel = (x%7);
|
||
/* main memory */
|
||
ptr = (uint8_t *) &dhrbuf[xoff-0x2000];
|
||
|
||
if (drawcolor != 0) {
|
||
/* white */
|
||
ptr[0] |= dhwmono[pixel]; /* inclusive OR */
|
||
}
|
||
else {
|
||
/* black */
|
||
ptr[0] &= dhbmono[pixel]; /* bitwise AND */
|
||
}
|
||
|
||
}
|
||
|
||
void dhrfill(int y,uint8_t drawcolor)
|
||
{
|
||
int xoff, x;
|
||
uint8_t *ptraux, *ptrmain;
|
||
|
||
xoff = HB[y];
|
||
|
||
ptraux = (uint8_t *) &dhrbuf[xoff-0x2000];
|
||
ptrmain = (uint8_t *) &dhrbuf[xoff];
|
||
|
||
for (x = 0,xoff=0; x < 20; x++) {
|
||
ptraux[xoff] = dhrbytes[drawcolor][0];
|
||
ptrmain[xoff] = dhrbytes[drawcolor][1]; xoff++;
|
||
ptraux[xoff] = dhrbytes[drawcolor][2];
|
||
ptrmain[xoff] = dhrbytes[drawcolor][3]; xoff++;
|
||
}
|
||
}
|
||
|
||
|
||
/* initialize the scanlines in the write buffer
|
||
to the background color
|
||
|
||
this doesn't matter for a full-screen image
|
||
|
||
*/
|
||
void dhrclear()
|
||
{
|
||
int y;
|
||
uint8_t drawcolor;
|
||
memset(dhrbuf,0,16384);
|
||
if (backgroundcolor == LOBLACK) return;
|
||
drawcolor = (uint8_t)backgroundcolor;
|
||
for (y=0;y<192;y++) dhrfill(y,drawcolor);
|
||
}
|
||
|
||
/* mono-spaced "tom thumb" 4 x 6 font */
|
||
/* using a byte map to gain a little speed at the expense of memory */
|
||
/* a bitmap could have been encoded into nibbles of 3 bytes per character
|
||
rather than the 18 bytes per character that I am using
|
||
but the trade-off in the speed in unmasking would have slowed this down */
|
||
void plotthumbDHGR(unsigned char ch, unsigned x, unsigned y,
|
||
unsigned char fg, unsigned char bg)
|
||
{
|
||
unsigned offset, x1, x2=x+3, y2=y+6, xmono;
|
||
unsigned char byte;
|
||
|
||
if (ch < 33 || ch > 127) ch = 0;
|
||
else ch -=32;
|
||
|
||
if (ch == 0 && bg > 15) return;
|
||
|
||
/* each of the 96 characters is encoded into 18 bytes */
|
||
offset = (18 * ch);
|
||
|
||
while (y < y2) {
|
||
xmono = x * 2;
|
||
for (x1 = x; x1 < x2; x1++,xmono+=2) {
|
||
if (x1 > 139) {
|
||
offset++;
|
||
continue;
|
||
}
|
||
|
||
byte = tomthumb[offset++];
|
||
|
||
if (byte == 0) {
|
||
if (bg > 15) continue;
|
||
if (hgroutput == 1 && mono == 1) {
|
||
hrmonoplot(xmono,y,bg);
|
||
hrmonoplot(xmono+1,y,bg);
|
||
}
|
||
else {
|
||
dhrplot(x1,y,bg);
|
||
}
|
||
}
|
||
else {
|
||
if (fg > 15) continue;
|
||
if (hgroutput == 1 && mono == 1) {
|
||
hrmonoplot(xmono,y,fg);
|
||
hrmonoplot(xmono+1,y,fg);
|
||
}
|
||
else {
|
||
dhrplot(x1,y,fg);
|
||
}
|
||
}
|
||
}
|
||
/* if background color is being used then a trailing pixel is required
|
||
between characters */
|
||
if (bg < 16 && x2 < 140) {
|
||
if (hgroutput == 1 && mono == 1) {
|
||
hrmonoplot(xmono,y,bg);
|
||
hrmonoplot(xmono+1,y,bg);
|
||
}
|
||
else {
|
||
dhrplot(x2,y,bg);
|
||
}
|
||
}
|
||
|
||
if (y++ > 191) break;
|
||
}
|
||
|
||
}
|
||
|
||
/* normally spaced 4 x 6 font */
|
||
/* using character plotting function plotthumb() (above) */
|
||
void thumbDHGR(char *str,unsigned x, unsigned y,
|
||
unsigned char fg,unsigned char bg, unsigned char justify)
|
||
{
|
||
int target;
|
||
unsigned char ch;
|
||
|
||
if (justify == 'M' || justify == 'm') {
|
||
target = strlen(str);
|
||
x-= ((target * 4) /2);
|
||
}
|
||
|
||
while ((ch = *str++) != 0) {
|
||
plotthumbDHGR(ch,x,y,fg,bg);
|
||
x+=4;
|
||
}
|
||
}
|
||
|
||
|
||
/* VBMP output routines */
|
||
/* VBMP requires a palette in the DHGR color order
|
||
|
||
My Apple II routines whether in cc65, Aztec C65, or in my converters
|
||
always use the LORES color order. LORES, Double LORES, and DHGR all use
|
||
the same colors so it seems rather silly to use a different index value
|
||
for DHGR in re-usable program code.
|
||
|
||
However, since VBMP doesn't really care about the color palette in a BMP
|
||
and just the order of the palette, we need to remap the palette and the
|
||
scanline palette indices to DHGR color order.
|
||
|
||
|
||
*/
|
||
|
||
uint16_t WriteVbmpHeader(FILE *fp)
|
||
{
|
||
uint16_t outpacket;
|
||
int c, i, j;
|
||
|
||
/* BMP scanlines are padded to a multiple of 4 bytes (DWORD) */
|
||
outpacket = (uint16_t)72;
|
||
|
||
if (mono != 0 || hgroutput == 1) {
|
||
if (hgroutput == 1) {
|
||
outpacket = 36;
|
||
c = fwrite(mono280,1,sizeof(mono192),fp);
|
||
}
|
||
else {
|
||
c = fwrite(mono192,1,sizeof(mono192),fp);
|
||
}
|
||
if (c!= sizeof(mono192))return 0;
|
||
return outpacket;
|
||
}
|
||
|
||
memset((char *)&mybmp.bfi.bfType[0],0,sizeof(BMPHEADER));
|
||
|
||
/* create the info header */
|
||
mybmp.bmi.biSize = (uint32_t)40;
|
||
mybmp.bmi.biWidth = (uint32_t)140;
|
||
mybmp.bmi.biHeight = (uint32_t)192;
|
||
mybmp.bmi.biPlanes = 1;
|
||
mybmp.bmi.biBitCount = 4;
|
||
mybmp.bmi.biCompression = (uint32_t) BI_RGB;
|
||
|
||
mybmp.bmi.biSizeImage = (uint32_t)outpacket;
|
||
mybmp.bmi.biSizeImage *= mybmp.bmi.biHeight;
|
||
|
||
/* create the file header */
|
||
mybmp.bfi.bfType[0] = 'B';
|
||
mybmp.bfi.bfType[1] = 'M';
|
||
mybmp.bfi.bfOffBits = (uint32_t) sizeof(BMPHEADER) + sizeof(RGBQUAD) * 16;
|
||
mybmp.bfi.bfSize = mybmp.bmi.biSizeImage + mybmp.bfi.bfOffBits;
|
||
|
||
/* write the header for the output BMP */
|
||
c = fwrite((char *)&mybmp.bfi.bfType[0],sizeof(BMPHEADER),1,fp);
|
||
|
||
if (c!= 1)return 0;
|
||
|
||
/* use the current conversion palette for the VBMP palette */
|
||
/* rather than the preview palette */
|
||
for (i=0;i<16;i++) {
|
||
j = RemapLoToHi[i];
|
||
sbmp[i].rgbRed = rgbVBMP[j][RED];
|
||
sbmp[i].rgbGreen = rgbVBMP[j][GREEN];
|
||
sbmp[i].rgbBlue = rgbVBMP[j][BLUE];
|
||
|
||
}
|
||
|
||
/* write the palette for the output bmp */
|
||
c = fwrite((char *)&sbmp[0].rgbBlue, sizeof(RGBQUAD)*16,1,fp);
|
||
if (c!= 1)return 0;
|
||
|
||
return outpacket;
|
||
}
|
||
|
||
/* decodes scanlines from hgr or dhgr monochrome buffer */
|
||
void applemonobites(int y, int doubleres)
|
||
{
|
||
int xoff,idx;
|
||
unsigned char *ptraux, *ptrmain, ch;
|
||
|
||
xoff = HB[y];
|
||
ptraux = (unsigned char *) &dhrbuf[xoff-0x2000];
|
||
ptrmain = (unsigned char *) &dhrbuf[xoff];
|
||
|
||
xoff = 0;
|
||
for (idx = 0; idx < 40; idx++) {
|
||
|
||
ch = ptraux[idx];
|
||
|
||
buf280[xoff] = ((ch) &1); xoff++;
|
||
buf280[xoff] = ((ch >> 1) &1); xoff++;
|
||
buf280[xoff] = ((ch >> 2) &1); xoff++;
|
||
buf280[xoff] = ((ch >> 3) &1); xoff++;
|
||
buf280[xoff] = ((ch >> 4) &1); xoff++;
|
||
buf280[xoff] = ((ch >> 5) &1); xoff++;
|
||
buf280[xoff] = ((ch >> 6) &1); xoff++;
|
||
|
||
if (doubleres == 0) continue;
|
||
|
||
ch = ptrmain[idx];
|
||
|
||
buf280[xoff] = ((ch) &1); xoff++;
|
||
buf280[xoff] = ((ch >> 1) &1); xoff++;
|
||
buf280[xoff] = ((ch >> 2) &1); xoff++;
|
||
buf280[xoff] = ((ch >> 3) &1); xoff++;
|
||
buf280[xoff] = ((ch >> 4) &1); xoff++;
|
||
buf280[xoff] = ((ch >> 5) &1); xoff++;
|
||
buf280[xoff] = ((ch >> 6) &1); xoff++;
|
||
|
||
}
|
||
}
|
||
|
||
/* encodes monochrome bmp scanline */
|
||
void ibmmonobites()
|
||
{
|
||
int i,j,k;
|
||
unsigned char bits[8];
|
||
|
||
j=0;
|
||
for(i=0;i<35;i++)
|
||
{
|
||
for(k=0;k<8;k++)
|
||
{
|
||
bits[k] = buf280[j]; j++;
|
||
}
|
||
bmpscanline[i] = (bits[0]<<7|bits[1]<<6|bits[2]<<5|bits[3]<<4|
|
||
bits[4]<<3|bits[5]<<2|bits[6]<<1|bits[7]);
|
||
}
|
||
}
|
||
|
||
|
||
/* writes VBMP compatible 140 x 192 x 16 color bmp or VBMP monochrome bmp in 2 sizes */
|
||
int WriteVBMPFile()
|
||
{
|
||
|
||
FILE *fp;
|
||
uint8_t ch;
|
||
int x,x1,y,y2,idx,j,packet=72;
|
||
|
||
if (hgroutput == 1) packet = 36;
|
||
|
||
fp = fopen(vbmpfile,"wb");
|
||
|
||
if (fp == NULL) {
|
||
printf("Error opening %s for writing!\n",vbmpfile);
|
||
return INVALID;
|
||
}
|
||
|
||
if (WriteVbmpHeader(fp) == 0) {
|
||
fclose(fp);
|
||
remove(vbmpfile);
|
||
printf("Error writing header to %s!\n",vbmpfile);
|
||
return INVALID;
|
||
}
|
||
memset(&bmpscanline[0],0,packet);
|
||
|
||
/* write 4 bit packed scanlines */
|
||
/* remap from LORES color order to DHGR color order */
|
||
/* VBMP does not use the colors in the palette, just the color order */
|
||
|
||
y2 = 191;
|
||
for (y = 0; y< 192; y++) {
|
||
if (hgroutput == 1) {
|
||
applemonobites(y2,0);
|
||
ibmmonobites();
|
||
}
|
||
else {
|
||
for (x = 0, x1=0; x < 140; x++) {
|
||
if (x%2 == 0) {
|
||
idx = dhrgetpixel(x,y2);
|
||
/* range check */
|
||
if (idx < 0 || idx > 15)idx = 0; /* default black */
|
||
j = RemapLoToHi[idx];
|
||
ch = (uint8_t)j << 4;
|
||
}
|
||
else {
|
||
idx = dhrgetpixel(x,y2);
|
||
/* range check */
|
||
if (idx < 0 || idx > 15)idx = 0; /* default black */
|
||
j = RemapLoToHi[idx];
|
||
bmpscanline[x1] = ch | (uint8_t)j; x1++;
|
||
}
|
||
}
|
||
}
|
||
|
||
fwrite((char *)&bmpscanline[0],1,packet,fp);
|
||
y2 -= 1;
|
||
}
|
||
|
||
fclose(fp);
|
||
if (quietmode == 1)printf("%s created!\n",vbmpfile);
|
||
return SUCCESS;
|
||
|
||
}
|
||
|
||
|
||
/* plain old HGR transformation routines for DHGR 6-color HGR pseudo-output */
|
||
/* encodes apple II hgr scanline into buffer */
|
||
void hgrbits(int y)
|
||
{
|
||
int xoff,idx,jdx;
|
||
unsigned char *ptr, bits[7], x1, palettebit;
|
||
|
||
xoff = HB[y]-0x2000;
|
||
ptr = (unsigned char *) &hgrbuf[xoff];
|
||
|
||
xoff = 0;
|
||
for (idx = 0; idx < 40; idx++) {
|
||
|
||
for (jdx = 0; jdx < 7; jdx++) {
|
||
bits[jdx] = buf280[xoff]; xoff++;
|
||
}
|
||
palettebit = palettebits[idx];
|
||
|
||
x1 = (palettebit | bits[6]<<6|bits[5]<<5|bits[4]<<4|
|
||
bits[3]<<3|bits[2]<<2|bits[1]<<1|bits[0]);
|
||
|
||
ptr[idx] = x1;
|
||
}
|
||
}
|
||
|
||
void buildhgr()
|
||
{
|
||
int i, j;
|
||
|
||
/* create bit pattern from pixelized values */
|
||
/* i is even and j is odd */
|
||
for (i= 0, j = 1; i < 280; i+=2, j+=2) {
|
||
buf280[i] = 0; /* assume everything is black */
|
||
buf280[j] = 0;
|
||
|
||
/* add the white bits - this also accounts for the half shift of
|
||
the color pixels which applewin renders as white to represent
|
||
aliasing of the color anomalies */
|
||
|
||
if (doublewhite == 1) {
|
||
/* if double white is on, set the white pixels in pairs */
|
||
if (work280[i] == HWHITE || work280[j] == HWHITE) {
|
||
buf280[i] = buf280[j] = 1;
|
||
}
|
||
}
|
||
else {
|
||
/* otherwise set white pixels individually */
|
||
if (work280[i] == HWHITE) buf280[i] = 1;
|
||
if (work280[j] == HWHITE) buf280[j] = 1;
|
||
}
|
||
|
||
/* if double colors is on, set the color pixels in pairs */
|
||
if (doublecolors == 1) {
|
||
/* add the violet or blue bits - the 2-bit value will be 2 */
|
||
if (work280[i] == HBLUE || work280[i] == HVIOLET ||
|
||
work280[j] == HBLUE || work280[j] == HVIOLET ) {
|
||
buf280[i] = 1;
|
||
buf280[j] = 0;
|
||
}
|
||
|
||
/* add the green or orange bits - the 2-bit value will be 1 */
|
||
if (work280[i] == HORANGE || work280[i] == HGREEN ||
|
||
work280[j] == HORANGE || work280[j] == HGREEN ) {
|
||
buf280[i] = 0;
|
||
buf280[j] = 1;
|
||
}
|
||
|
||
}
|
||
else {
|
||
/* otherwise set the colors individually if double colors is off */
|
||
/* add the violet or blue bits - the 2-bit value will be 2 */
|
||
if (work280[i] == HBLUE || work280[i] == HVIOLET )buf280[i] = 1;
|
||
if (work280[j] == HBLUE || work280[j] == HVIOLET )buf280[j] = 0;
|
||
|
||
/* add the green or orange bits - the 2-bit value will be 1 */
|
||
if (work280[i] == HORANGE || work280[i] == HGREEN )buf280[i] = 0;
|
||
if (work280[j] == HORANGE || work280[j] == HGREEN )buf280[j] = 1;
|
||
}
|
||
|
||
if (doubleblack == 1) {
|
||
/* be careful here - this can foul the colors */
|
||
if (work280[i] == HBLACK || work280[j]==HBLACK) {
|
||
buf280[i] = 0;
|
||
buf280[j] = 0;
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
}
|
||
|
||
void hgrline(int y)
|
||
{
|
||
int x,i,j,k,l, green, orange;
|
||
unsigned char c, p;
|
||
|
||
/* read the 6-color DHGR buffer and translate to HGR */
|
||
/* since DHGR is 140 pixels in width and HGR is 280, double each pixel */
|
||
/* HGR is only 140 color pixels in width so effective color resolution is identical */
|
||
/* this is a really slack method of converting to HGR because it ignores the half-pixel shift for black and white
|
||
pixels so technically half the available detail is lost on images with large areas of black and white but
|
||
generally on complex images with lots of colors artifacting is minimized by doubling-up
|
||
|
||
some of my other converters like Bmp2RAG offer more options but they don't provided dithering.
|
||
|
||
*/
|
||
|
||
/* double colors */
|
||
for (x=0,i=0,j=1;x<140;x++,i+=2,j+=2) {
|
||
/* get the DHGR color */
|
||
k = dhrgetpixel(x,y);
|
||
/* remap to the HGR color indices */
|
||
work280[i] = work280[j] = dhgr2hgr[k];
|
||
}
|
||
|
||
/* single colors - shift image right by one nominal pixel */
|
||
/* otherwise this setting will have no effect */
|
||
if (doublecolors == 0) {
|
||
for (x = 279;x > 0;x--) {
|
||
work280[x] = work280[x-1];
|
||
}
|
||
}
|
||
|
||
buildhgr();
|
||
|
||
/* set the HGR palette based on groups of seven HGR pixels */
|
||
if (hgrpaltype == 0 || hgrpaltype == 0x80) {
|
||
/* single palette over-ride... 4 color output. all non-black and
|
||
non-white pixels will be converted to either Green-Violet or
|
||
Orange-Blue */
|
||
for (i = 0; i < 40; i++) palettebits[i] = hgrpaltype;
|
||
}
|
||
else {
|
||
/* seed palette hi-bit with some value */
|
||
if (hgrcolortype == 'G' || hgrcolortype == 'V') p = 0;
|
||
else p = 0x80;
|
||
|
||
/* go through the 280 pixel scanline and determine precedence of colors
|
||
for the palette bit settings based on the command option selected. */
|
||
|
||
for (i = 0, k=0; i < 40; i++ ) {
|
||
orange = 0;
|
||
green = 0;
|
||
for (j = 0; j < 7; j++) {
|
||
/* count in groups of 7 pixels (really 3.5 color pixels) */
|
||
if (work280[k] == HORANGE || work280[k] == HBLUE) orange++;
|
||
if (work280[k] == HGREEN || work280[k] == HVIOLET) green++;
|
||
k++;
|
||
}
|
||
|
||
if (hgrcolortype == 'O') {
|
||
/* big orange - one orange pixel sets the palette */
|
||
/* orange blue */
|
||
if (orange > 0) p = 0x80;
|
||
else {
|
||
if (green > 0) p = 0;
|
||
}
|
||
}
|
||
else if (hgrcolortype == 'G') {
|
||
/* big green - one green pixel sets the palette */
|
||
/* green violet */
|
||
if (green > 0) p = 0;
|
||
else {
|
||
if (orange > 0) p = 0x80;
|
||
}
|
||
}
|
||
else {
|
||
/* normal precedence - the dominant color group sets the palette */
|
||
if (green > orange) p = 0;
|
||
else if (orange > green) p = 0x80;
|
||
else {
|
||
/* but if both groups are equal then 3 - options for behaviour */
|
||
/* little green - equal green and orange sets the palette to green */
|
||
if (hgrcolortype == 'V' && green == orange) p = 0;
|
||
/* little orange - equal green and orange sets the palette to orange */
|
||
else if (hgrcolortype == 'B' && orange == green) p = 0x80;
|
||
else if (orange > 0) {
|
||
/* it was either do this or carry the previous palette bit setting forward */
|
||
if (hgrcolortype == 'G' || hgrcolortype == 'V') p = 0;
|
||
else p = 0x80;
|
||
}
|
||
}
|
||
}
|
||
palettebits[i] = p;
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
|
||
/* routines to save to Apple 2 Lores Format */
|
||
|
||
#define LORAGWIDTH 80
|
||
#define LORAGHEIGHT 48
|
||
#define LORAGSIZE 1920
|
||
#define LOTOPSIZE 1600
|
||
#define LOBINSIZE 1016
|
||
|
||
|
||
/* Lo-Res and Double Lo-Res Routines */
|
||
|
||
/* The Lo-Res Display has a resolution of 40 x 48 x 16 colors.
|
||
|
||
The Double Lo-Res display has a resolution of 80 x 48 x 16 colors.
|
||
|
||
In either case, these are the same 16 colors used by the DHGR display.
|
||
|
||
The nominal resolution for a Double Lo-Res Screen is 320 x 192
|
||
|
||
/* routines to save to Apple 2 Lores Format */
|
||
|
||
/* sets the pixels in the lores buffer (hgrbuf) */
|
||
void setlopixel(unsigned char color,int x, int y,int ragflag)
|
||
{
|
||
unsigned char *crt, c1, c2;
|
||
int y1, offset;
|
||
|
||
y1 = y / 2;
|
||
|
||
c2 = (unsigned char ) (color & 15);
|
||
|
||
if (y%2 == 0) {
|
||
/* even rows in low nibble */
|
||
/* mask value to preserve high nibble */
|
||
c1 = 240;
|
||
}
|
||
else {
|
||
/* odd rows in high nibble */
|
||
/* mask value to preserve low nibble */
|
||
c1 = 15;
|
||
c2 = c2 * 16;
|
||
}
|
||
|
||
if (ragflag)
|
||
offset = (y1 * 80) + x;
|
||
else
|
||
offset = (textbase[y1]-1024)+x;
|
||
|
||
crt = (unsigned char *)&hgrbuf[offset];
|
||
crt[0] &= c1;
|
||
crt[0] |= c2;
|
||
}
|
||
|
||
|
||
/* save LGR or DLGR output files in either raster-oriented or BSAVE format */
|
||
/* only full-screen (48 line) or mixed-screen (40 line) files are supported for raster-oriented files */
|
||
/* only full-sceen format is supported for BSAVE files */
|
||
/* image fragments are not supported */
|
||
int savelofragment()
|
||
{
|
||
|
||
FILE *fp;
|
||
unsigned char outfile[MAXF], temp, remap;
|
||
int x,y,x2,y2, offset;
|
||
uint16_t fl = 1016; /* default LGR or DLGR file size in bytes - BSAVE format */
|
||
|
||
/* raster files - single file output */
|
||
if (applesoft == 0) {
|
||
/* save single lo-res and double lo-res */
|
||
/* save raster images of 48 or 40 scanlines
|
||
(full graphics or mixed text and graphics) */
|
||
|
||
if (lores == 1) {
|
||
if (appletop == 1) {
|
||
fl = 802;
|
||
sprintf(outfile,"%s.STO",hgrwork);
|
||
}
|
||
else {
|
||
fl = 962;
|
||
sprintf(outfile,"%s.SLO",hgrwork);
|
||
}
|
||
}
|
||
else {
|
||
if (appletop == 1) {
|
||
fl = 1602;
|
||
sprintf(outfile,"%s.DTO",hgrwork);
|
||
}
|
||
else {
|
||
fl = 1922;
|
||
sprintf(outfile,"%s.DLO",hgrwork);
|
||
}
|
||
}
|
||
if (tags == 1) {
|
||
strcat(outfile,"#060400");
|
||
}
|
||
fp = fopen(outfile,"wb");
|
||
if (NULL == fp)return INVALID;
|
||
WriteDosHeader(fp,fl,1024);
|
||
|
||
/* On the double lo res display each byte in
|
||
high memory is interleaved with a byte in low memory
|
||
in the interests of efficiency I am saving and loading
|
||
the interleaf on a scanline by scanline basis.
|
||
*/
|
||
memset(hgrbuf,0,LORAGSIZE);
|
||
for (y = 0; y< 48; y++) {
|
||
if (appletop == 1 && y > 39)break;
|
||
y2 = y;
|
||
/* first 40 bytes goes to auxiliary memory (even pixels) */
|
||
for (x = 0; x < 40; x++) {
|
||
x2 = (x*2);
|
||
remap = dhrgetpixel(x2,y2);
|
||
temp = dloauxcolor[remap];
|
||
setlopixel(temp,x,y,1);
|
||
}
|
||
/* followed by the interleaf (odd pixels)
|
||
next 40 bytes goes to main memory */
|
||
for (x = 0; x < 40; x++) {
|
||
x2 = (x*2) + 1;
|
||
temp = dhrgetpixel(x2,y2);
|
||
setlopixel(temp,x+40,y,1);
|
||
}
|
||
}
|
||
if (lores == 1) {
|
||
fputc(40,fp); /* bytes */
|
||
if (appletop == 1) fputc(20,fp);
|
||
else fputc(24,fp);
|
||
|
||
for (y = 0; y < 24; y++) {
|
||
if (appletop == 1 && y > 19)break;
|
||
offset = (y * 80)+40;
|
||
fwrite((unsigned char *)&hgrbuf[offset],1,40,fp);
|
||
}
|
||
}
|
||
else {
|
||
fputc(80,fp); /* bytes */
|
||
if (appletop == 1) {
|
||
fputc(20,fp); /* bytes (rasters / 2) */
|
||
fwrite(hgrbuf,1,LOTOPSIZE,fp);
|
||
}
|
||
else {
|
||
fputc(24,fp); /* bytes (rasters / 2) */
|
||
fwrite(hgrbuf,1,LORAGSIZE,fp);
|
||
}
|
||
}
|
||
fclose(fp);
|
||
printf("%s Saved!",outfile);
|
||
}
|
||
else {
|
||
|
||
/* bsaved images */
|
||
/* 2 files for double lo-res */
|
||
/* one file for lo-res */
|
||
|
||
/* these cannot be loaded in a ProDOS BASIC program and should
|
||
probably not be loaded in a C program */
|
||
/* they are arguably unsafe to load even in DOS 3.3
|
||
since they clobber the text screen holes */
|
||
|
||
/* for double lo-res the bsaved images are split into two files
|
||
the first file is loaded into aux mem
|
||
*/
|
||
if (lores == 0) {
|
||
sprintf(outfile,"%s.DL1",hgrwork);
|
||
if (tags == 1) {
|
||
strcat(outfile,"#060400");
|
||
}
|
||
fp = fopen(outfile,"wb");
|
||
if (NULL == fp)return INVALID;
|
||
WriteDosHeader(fp,fl,1024);
|
||
|
||
memset(hgrbuf,0,LOBINSIZE);
|
||
for (y = 0; y< 48; y++) {
|
||
y2 = y;
|
||
for (x = 0; x < 40; x++) {
|
||
x2 = (x*2);
|
||
remap = dhrgetpixel(x2,y2);
|
||
temp = dloauxcolor[remap];
|
||
setlopixel(temp,x,y,0);
|
||
}
|
||
}
|
||
fwrite(hgrbuf,1,LOBINSIZE,fp);
|
||
fclose(fp);
|
||
printf("%s Saved!",outfile);
|
||
}
|
||
|
||
/*
|
||
for single lo res only 1 file is needed
|
||
for double lo res the second file is loaded into main mem
|
||
*/
|
||
if (lores == 1)
|
||
sprintf(outfile,"%s.SL2",hgrwork);
|
||
else
|
||
sprintf(outfile,"%s.DL2",hgrwork);
|
||
if (tags == 1) {
|
||
strcat(outfile,"#060400");
|
||
}
|
||
fp = fopen(outfile,"wb");
|
||
if (NULL == fp)return INVALID;
|
||
WriteDosHeader(fp,fl,1024);
|
||
memset(hgrbuf,0,LOBINSIZE);
|
||
for (y = 0; y< 48; y++) {
|
||
y2 = y;
|
||
for (x = 0; x < 40; x++) {
|
||
x2 = (x*2) + 1;
|
||
temp = dhrgetpixel(x2,y2);
|
||
setlopixel(temp,x,y,0);
|
||
}
|
||
}
|
||
fwrite(hgrbuf,1,LOBINSIZE,fp);
|
||
fclose(fp);
|
||
printf("%s Saved!",outfile);
|
||
}
|
||
|
||
return SUCCESS;
|
||
}
|
||
|
||
|
||
|
||
/* save both raw output file formats */
|
||
int savedhr()
|
||
{
|
||
|
||
FILE *fp;
|
||
int c,y;
|
||
|
||
if (outputtype != BIN_OUTPUT) return SUCCESS;
|
||
|
||
if (loresoutput == 1) {
|
||
savelofragment();
|
||
return SUCCESS;
|
||
}
|
||
|
||
/* titling from text files if found */
|
||
GetUserTextFile();
|
||
|
||
|
||
if (hgroutput == 1) {
|
||
/* just using the BIN file extension as always */
|
||
if (mono == 0) {
|
||
strcpy(mainfile,hgrcolor);
|
||
memset(hgrbuf,0,8192);
|
||
for (y = 0; y < 192; y++) {
|
||
hgrline(y); /* translate from DHGR and format the HGR line */
|
||
hgrbits(y); /* put the HGR line into the HGR file buffer */
|
||
}
|
||
}
|
||
else {
|
||
strcpy(mainfile,hgrmono);
|
||
}
|
||
fp = fopen(mainfile,"wb");
|
||
if (NULL == fp) {
|
||
if (quietmode == 1)printf("Error Opening %s for writing!\n",mainfile);
|
||
return INVALID;
|
||
}
|
||
|
||
WriteDosHeader(fp,8192,8192);
|
||
|
||
if (mono == 1) c = fwrite(dhrbuf,1,8192,fp);
|
||
else c = fwrite(&hgrbuf[0],1,8192,fp);
|
||
fclose(fp);
|
||
if (c != 8192) {
|
||
remove(mainfile);
|
||
if (quietmode == 1)printf("Error Writing %s!\n",mainfile);
|
||
return INVALID;
|
||
}
|
||
|
||
if (quietmode == 1) printf("%s created!\n",mainfile);
|
||
if (vbmp != 0) {
|
||
/* additional BMP file for Cybernesto's VBMP */
|
||
if (mono == 0) memcpy(&dhrbuf[0],&hgrbuf[0],8192);
|
||
WriteVBMPFile();
|
||
}
|
||
return SUCCESS;
|
||
}
|
||
|
||
if (applesoft == 0) {
|
||
|
||
fp = fopen(a2fcfile,"wb");
|
||
if (NULL == fp) {
|
||
if (quietmode == 1)printf("Error Opening %s for writing!\n",a2fcfile);
|
||
return INVALID;
|
||
}
|
||
|
||
WriteDosHeader(fp,16384,8192);
|
||
|
||
c = fwrite(dhrbuf,1,16384,fp);
|
||
fclose(fp);
|
||
|
||
if (c != 16384) {
|
||
remove(a2fcfile);
|
||
if (quietmode == 1)printf("Error Writing %s!\n",a2fcfile);
|
||
return INVALID;
|
||
}
|
||
if (quietmode == 1)printf("%s created!\n",a2fcfile);
|
||
if (vbmp != 0) {
|
||
/* additional BMP file for Cybernesto's VBMP */
|
||
WriteVBMPFile();
|
||
}
|
||
return SUCCESS;
|
||
}
|
||
|
||
|
||
/* the bsaved images are split into two files
|
||
the first file is loaded into aux mem */
|
||
fp = fopen(auxfile,"wb");
|
||
if (NULL == fp) {
|
||
if (quietmode == 1)printf("Error Opening %s for writing!\n",auxfile);
|
||
return INVALID;
|
||
}
|
||
WriteDosHeader(fp,8192,8192);
|
||
c = fwrite(dhrbuf,1,8192,fp);
|
||
fclose(fp);
|
||
if (c != 8192) {
|
||
remove(auxfile);
|
||
if (quietmode == 1)printf("Error Writing %s!\n",auxfile);
|
||
return INVALID;
|
||
}
|
||
|
||
/* the second file is loaded into main mem */
|
||
fp = fopen(mainfile,"wb");
|
||
if (NULL == fp) {
|
||
remove(auxfile);
|
||
if (quietmode == 1)printf("Error Opening %s for writing!\n",mainfile);
|
||
return INVALID;
|
||
}
|
||
WriteDosHeader(fp,8192,8192);
|
||
c = fwrite(&dhrbuf[8192],1,8192,fp);
|
||
fclose(fp);
|
||
if (c != 8192) {
|
||
/* remove both files */
|
||
remove(auxfile);
|
||
remove(mainfile);
|
||
if (quietmode == 1)printf("Error Writing %s!\n",mainfile);
|
||
return INVALID;
|
||
}
|
||
|
||
if (quietmode == 1) {
|
||
printf("%s created!\n",auxfile);
|
||
printf("%s created!\n",mainfile);
|
||
}
|
||
|
||
if (vbmp != 0) {
|
||
/* additional BMP file for Cybernesto's VBMP */
|
||
WriteVBMPFile();
|
||
}
|
||
|
||
return SUCCESS;
|
||
}
|
||
|
||
|
||
int saverag()
|
||
{
|
||
FILE *fp;
|
||
/* make an Rasterized Apple II Graphic (RAG) */
|
||
int c, x, y, xoff, width;
|
||
unsigned char *ptr;
|
||
|
||
if (scale == 1) spritewidth = bmpwidth;
|
||
else spritewidth = bmpwidth * 2;
|
||
|
||
if (spritewidth < 1) {
|
||
printf("Width is too small for %s!\n",spritefile);
|
||
return INVALID;
|
||
}
|
||
|
||
memset(hgrbuf,0,8192);
|
||
for (y = 0; y < 192; y++) {
|
||
hgrline(y); /* translate from DHGR and format the HGR line */
|
||
hgrbits(y); /* put the HGR line into the HGR file buffer */
|
||
}
|
||
|
||
width = spritewidth;
|
||
while (width%7 != 0)width++; /* multiples of 7 pixels */
|
||
/* if we have an orphan pixel hanging at the edge of an even byte
|
||
increase the width to the next 7 pixels */
|
||
if (width == spritewidth && (width % 14) != 0) width += 7;
|
||
width /= 7;
|
||
if (width > 40)width = 40; /* likely not necessary */
|
||
|
||
/* over-ride for default .RAG file extension */
|
||
/* use .BOT extension for full-screen */
|
||
/* use .TOP extension for mixed-screen */
|
||
if (width == 40 && (bmpheight == 160 || bmpheight == 192)) {
|
||
x = 999;
|
||
for (y=0;spritefile[y] != (char)0;y++) {
|
||
if (spritefile[y] == '.') x = y;
|
||
}
|
||
if (x != 999) {
|
||
spritefile[x+2] = 'O';
|
||
if (bmpheight == 160) {
|
||
spritefile[x+1] = 'T'; spritefile[x+3] = 'P';
|
||
}
|
||
else {
|
||
spritefile[x+1] = 'B'; spritefile[x+3] = 'T';
|
||
}
|
||
}
|
||
}
|
||
|
||
fp = fopen(spritefile,"wb");
|
||
if (NULL == fp) {
|
||
printf("Error Opening %s for writing!\n",spritefile);
|
||
return INVALID;
|
||
}
|
||
|
||
/* write 2 byte header */
|
||
fputc((uint8_t)width,fp); /* width in bytes */
|
||
fputc((uint8_t)bmpheight,fp); /* height in scanlines */
|
||
|
||
for (y = 0; y < bmpheight; y++) {
|
||
xoff = HB[y] - 0x2000;
|
||
ptr = (unsigned char *) &hgrbuf[xoff];
|
||
c = fwrite(ptr,1,width,fp);
|
||
if (c!=width) break;
|
||
|
||
}
|
||
fclose(fp);
|
||
|
||
if (c!=width) {
|
||
remove(spritefile);
|
||
printf("Error Writing %s!\n",spritefile);
|
||
return INVALID;
|
||
}
|
||
|
||
printf("%s created!\n",spritefile);
|
||
return SUCCESS;
|
||
}
|
||
|
||
/* save raster oriented DHGR image fragment
|
||
|
||
file format is 5 byte header
|
||
|
||
3 - upper case ID bytes 'D' 'H' 'R' for a sprite
|
||
3 - upper case ID bytes 'D' 'H' 'M' for a sprite-mask
|
||
|
||
1 byte - width in bytes (multiples of 4 bytes - 7 pixels)
|
||
1 byte - height in rasters
|
||
|
||
followed by interleaved raster data
|
||
|
||
aux raster, main raster = (width in bytes)
|
||
aux raster, main raster = (width in bytes)
|
||
aux raster, main raster = (width in bytes)
|
||
etc...
|
||
|
||
*/
|
||
int savesprite()
|
||
{
|
||
|
||
FILE *fp;
|
||
int i, c, width, packet, x, y, xoff, cnt;
|
||
uint16_t fl;
|
||
uint8_t *ptraux, *ptrmain, ch;
|
||
|
||
if (outputtype != SPRITE_OUTPUT) return SUCCESS;
|
||
|
||
if (hgroutput == 1) return saverag();
|
||
|
||
/* if scaling is turned-on the sprite matrix is 280 x 192 so for every 2-pixels
|
||
in the BMP only 1-pixel will be in the sprite. BMPs over 140 x 192 implictly
|
||
and automatically turn-on scaling whether sprite mode is selected (option "F")
|
||
or not.
|
||
*/
|
||
if (scale == 1) spritewidth = bmpwidth / 2;
|
||
else spritewidth = bmpwidth;
|
||
|
||
if (spritewidth < 1) {
|
||
if (quietmode == 1)printf("Width is too small for %s!\n",spritefile);
|
||
return INVALID;
|
||
}
|
||
while (spritewidth%7 != 0) spritewidth++;
|
||
|
||
width = (int)((spritewidth / 7) * 4); /* 4 bytes = 7 pixels */
|
||
packet = (int)width / 2;
|
||
|
||
/* prepare either an image fragment or a mask for the image fragment */
|
||
/* the idea for a mask is to provide a background mixing map for the image fragment */
|
||
if (spritemask != 1) {
|
||
fp = fopen(spritefile,"wb");
|
||
if (NULL == fp) {
|
||
if (quietmode == 1)printf("Error Opening %s for writing!\n",spritefile);
|
||
return INVALID;
|
||
}
|
||
}
|
||
else {
|
||
fp = fopen(fmask,"wb");
|
||
if (NULL == fp) {
|
||
if (quietmode == 1)printf("Error Opening %s for writing!\n",fmask);
|
||
return INVALID;
|
||
}
|
||
/* transform the buffer to a black and white mask for the sprite */
|
||
/* the background is black and the foreground is white */
|
||
/* this allows a rendered sprite to be prepared independently of the mask */
|
||
/* and to contain the background color in any rendering or dithering that goes-on */
|
||
for (y = 0; y < bmpheight; y ++) {
|
||
for (x = 0; x < spritewidth; x++) {
|
||
if (dhrgetpixel(x,y) == backgroundcolor) ch = 0;
|
||
else ch = 15;
|
||
dhrplot(x,y,ch);
|
||
}
|
||
}
|
||
/* now that we have transformed the image into a mask for mixing the sprite
|
||
with a background image we save it in the same format as the sprite
|
||
but as a DHM file rather than a DHR file */
|
||
|
||
/* append M for mask to the array basename */
|
||
if (quietmode == 0) strcat(fname,"M");
|
||
|
||
}
|
||
|
||
if (dosheader == 1) {
|
||
fl = (uint16_t) width;
|
||
fl *=bmpheight;
|
||
fl += 5;
|
||
WriteDosHeader(fp,fl,8192);
|
||
}
|
||
|
||
/* 5 byte header */
|
||
/* some kind of identifier */
|
||
fputc('D',fp);
|
||
fputc('H',fp);
|
||
if (spritemask != 1) fputc('R',fp);
|
||
else fputc('M',fp);
|
||
|
||
fputc((uint8_t)width,fp); /* width in bytes */
|
||
fputc((uint8_t)bmpheight,fp); /* height in scanlines */
|
||
|
||
/* write header values to stdout */
|
||
if (quietmode == 0) {
|
||
printf("#define %sWIDTH %d\n",fname,width);
|
||
printf("#define %sHEIGHT %d\n",fname,bmpheight);
|
||
printf("#define %sSIZE %d\n\n",fname,width * bmpheight);
|
||
|
||
/* if we are writing a mask, background color is irrelevant */
|
||
/* the whole idea behind background color is the same as a mask */
|
||
|
||
if (spritemask != 1) printf("uint8_t %sBackgroundColor = %d;\n\n",fname,backgroundcolor);
|
||
|
||
printf("/* Embedded DHGR Image Fragment created from %s */\n\n",bmpfile);
|
||
printf("uint8_t %sPixelData[] = {\n",fname);
|
||
}
|
||
|
||
for (y = 0, cnt = 0; y < bmpheight; y++) {
|
||
xoff = HB[y];
|
||
ptraux = (uint8_t *) &dhrbuf[xoff-0x2000];
|
||
ptrmain = (uint8_t *) &dhrbuf[xoff];
|
||
/* aux raster */
|
||
c = fwrite((char *)&ptraux[0],1,packet,fp);
|
||
if (c!= packet) break;
|
||
/* main raster */
|
||
c = fwrite((char *)&ptrmain[0],1,packet,fp);
|
||
if (c!= packet) break;
|
||
|
||
if (quietmode == 0) {
|
||
for (i=0;i<width;i++) {
|
||
if (i <packet)ch = ptraux[i];
|
||
else ch = ptrmain[i-packet];
|
||
if (cnt == 0) {
|
||
printf("%3d",ch);
|
||
}
|
||
else {
|
||
printf(",");
|
||
if (cnt%16 == 0) printf("\n");
|
||
printf("%3d",ch);
|
||
}
|
||
cnt++;
|
||
}
|
||
}
|
||
}
|
||
if (quietmode == 0) printf("};\n\n");
|
||
fclose(fp);
|
||
|
||
if (c!=packet) {
|
||
if (spritemask != 1) {
|
||
remove(spritefile);
|
||
if (quietmode == 1)printf("Error Writing %s!\n",spritefile);
|
||
}
|
||
else {
|
||
remove(fmask);
|
||
if (quietmode == 1)printf("Error Writing %s!\n",fmask);
|
||
}
|
||
return INVALID;
|
||
}
|
||
|
||
if (quietmode == 1) {
|
||
if (spritemask != 1) printf("%s created!\n",spritefile);
|
||
else printf("%s created!\n",fmask);
|
||
}
|
||
|
||
return SUCCESS;
|
||
}
|
||
|
||
|
||
/* read and remap a mask line from an open mask file */
|
||
/* required by dithered and non-dithered routines when in use */
|
||
int16_t ReadMaskLine(uint16_t y)
|
||
{
|
||
uint32_t pos;
|
||
uint16_t x, packet;
|
||
uint8_t ch;
|
||
|
||
if (overlay == 0) return INVALID;
|
||
|
||
if (mono == 1) {
|
||
/* two sizes for mono overlays depending on output */
|
||
/* 560 x 192 DHGR overlay or 280 x 192 HGR overlay */
|
||
if (hgroutput == 1) packet = 280;
|
||
else packet = 560;
|
||
}
|
||
else packet = 140;
|
||
|
||
pos = (uint32_t) (191 - y);
|
||
pos *= packet;
|
||
pos += maskbmp.bfi.bfOffBits;
|
||
|
||
fseek(fpmask,pos,SEEK_SET);
|
||
fread((char *)&maskline[0],1,packet,fpmask);
|
||
for (x = 0; x < packet; x++) {
|
||
ch = maskline[x];
|
||
maskline[x] = remap[ch];
|
||
}
|
||
return SUCCESS;
|
||
}
|
||
|
||
|
||
/*
|
||
|
||
http://www.efg2.com/Lab/Library/ImageProcessing/DHALF.TXT
|
||
|
||
|
||
The Floyd-Steinberg filter
|
||
|
||
This is where it all began, with Floyd and Steinberg's pioneering
|
||
research in 1975. The filter can be diagrammed thus:
|
||
|
||
|
||
* 7
|
||
3 5 1 (1/16)
|
||
|
||
|
||
In this (and all subsequent) filter diagrams, the "*" represents the pixel
|
||
currently being scanning, and the neighboring numbers (called weights)
|
||
represent the portion of the error distributed to the pixel in that
|
||
position. The expression in parentheses is the divisor used to break up the
|
||
error weights. In the Floyd-Steinberg filter, each pixel "communicates"
|
||
with 4 "neighbors." The pixel immediately to the right gets 7/16 of the
|
||
error value, the pixel directly below gets 5/16 of the error, and the
|
||
diagonally adjacent pixels get 3/16 and 1/16.
|
||
|
||
The weighting shown is for the traditional left-to-right scanning of the
|
||
image. If the line were scanned right-to-left (more about this later), this
|
||
pattern would be reversed. In either case, the weights calculated for the
|
||
subsequent line must be held by the program, usually in an array of some
|
||
sort, until that line is visited later.
|
||
|
||
Floyd and Steinberg carefully chose this filter so that it would produce a
|
||
checkerboard pattern in areas with intensity of 1/2 (or 128, in our sample
|
||
image). It is also fairly easy to execute in programming code, since the
|
||
division by 16 is accomplished by simple, fast bit-shifting instructions
|
||
(this is the case whenever the divisor is a power of 2).
|
||
|
||
*/
|
||
|
||
/*
|
||
|
||
Floyd-Steinberg dithering published by Robert Floyd and Louis Steinberg in
|
||
1976 was the first 2D error diffusion dithering formula.(Filter Lite is an
|
||
algorithm by Sierra that produces similar results.) Floyd-Steinberg dithering
|
||
only diffuses the error to neighbouring pixels. This results in very
|
||
fine-grained dithering.
|
||
|
||
In the same year a much more powerful algorithm was also published: Jarvis,
|
||
Judice, and Ninke. (Sierra dithering and Sierra 2 are based on Jarvis
|
||
dithering, and produce similar results. Atkinson dithering resembles Jarvis
|
||
dithering and Sierra dithering; speckling is improved but very light and dark
|
||
areas may appear blown out.) Jarvis dithering is coarser than Floyd-Steinberg,
|
||
but has fewer visual artifacts.
|
||
|
||
Five years after Jarvis dithering, Peter Stucki published an adjusted version,
|
||
to improve processing time. Its output tends to be clean and sharp.
|
||
|
||
Seven years after Stucki published his improvement to Jarvis, Judice, Ninke
|
||
dithering, Daniel Burkes developed a simplified form of Stucki dithering that
|
||
is somewhat less clean and sharp.
|
||
|
||
*/
|
||
|
||
|
||
/* setting clip to 0 increases the potential amount of retained error */
|
||
/* error is accumulated in a short integer and may be negative or positive */
|
||
uint8_t AdjustShortPixel(int clip,int16_t *buf,int16_t value)
|
||
{
|
||
|
||
if (globalclip == 1) clip = 1;
|
||
|
||
value = (int16_t)(buf[0] + value);
|
||
if (clip != 0) {
|
||
if (value < 0) value = 0;
|
||
else if (value > 255) value = 255;
|
||
}
|
||
buf[0] = value;
|
||
if (clip == 0) {
|
||
if (value < 0) value = 0;
|
||
else if (value > 255) value = 255;
|
||
}
|
||
return (uint8_t) value;
|
||
}
|
||
|
||
|
||
|
||
/* helper function for ReadCustomDither */
|
||
int InitCustomLine(char *ptr, int lidx)
|
||
{
|
||
int cnt=0, i;
|
||
|
||
customdither[lidx][cnt] = (int16_t) atoi(ptr);
|
||
|
||
/* enforce 11 fields */
|
||
for (i=0;ptr[i]!=0;i++) {
|
||
if (ptr[i]== ',') {
|
||
cnt++;
|
||
if (cnt < 11) customdither[lidx][cnt] = (int16_t) atoi((char*)&ptr[i+1]);
|
||
}
|
||
}
|
||
if (cnt != 10) return -1;
|
||
}
|
||
|
||
|
||
/* read a custom dither pattern from a comma delimited text file
|
||
|
||
line 1 is the custom divisor
|
||
the next 3 lines are 11 fields in the following format:
|
||
|
||
0,0,0,0,0,*,0,0,0,0,0
|
||
0,0,0,0,0,0,0,0,0,0,0
|
||
0,0,0,0,0,0,0,0,0,0,0
|
||
|
||
unused fields must be padded with zeros
|
||
|
||
errata:
|
||
|
||
- no range checking
|
||
- current pixel (asterisk) at subscript 5 is not "protected"
|
||
|
||
*/
|
||
int ReadCustomDither(char *name)
|
||
{
|
||
FILE *fp;
|
||
char ch, buf[128];
|
||
int i,j;
|
||
|
||
/* clear 3-dimensional custom dither array */
|
||
memset(&customdither[0][0],0,sizeof(int16_t)*33);
|
||
|
||
fp = fopen(name,"r");
|
||
if (NULL == fp) return -1;
|
||
|
||
/* read divisor */
|
||
for (;;) {
|
||
if (NULL == fgets(buf, 128, fp)) {
|
||
fclose(fp);
|
||
return -1;
|
||
}
|
||
/* ignore comment lines and blank lines */
|
||
ch = buf[0];
|
||
/* leading numeric characters only */
|
||
if (ch < 48 || ch > 57) continue;
|
||
break;
|
||
}
|
||
customdivisor = (int16_t) atoi(buf);
|
||
if (customdivisor < 1) {
|
||
fclose(fp);
|
||
return -1;
|
||
}
|
||
|
||
/* read up to 3 lines of dither pattern */
|
||
for (i=0;;) {
|
||
if (NULL == fgets(buf, 128, fp)) {
|
||
fclose(fp);
|
||
return -1;
|
||
}
|
||
/* ignore comment lines and blank lines */
|
||
ch = buf[0];
|
||
/* leading numeric characters only */
|
||
if (ch < 48 || ch > 57) continue;
|
||
/* condition line - remove trailing comments */
|
||
for (j=0;buf[j]!=0;j++) {
|
||
ch = buf[j];
|
||
/* numeric characters are ok */
|
||
if (ch > 47 && ch < 58) continue;
|
||
/* commas and asterisks are ok */
|
||
if (ch == ',' || ch == '*') continue;
|
||
buf[j] = 0;
|
||
break;
|
||
}
|
||
|
||
/* parse fields - there must be 11 fields */
|
||
if(InitCustomLine((char *)&buf[0],i)==-1) {
|
||
fclose(fp);
|
||
return -1;
|
||
}
|
||
i++;
|
||
if (i == 3) break;
|
||
}
|
||
fclose(fp);
|
||
if (i == 0) return -1;
|
||
|
||
if (quietmode == 1) {
|
||
printf("Imported Dither from %s\n",name);
|
||
}
|
||
|
||
dither = CUSTOM;
|
||
return SUCCESS;
|
||
|
||
}
|
||
|
||
/* http://en.wikipedia.org/wiki/Floyd%E2%80%93Steinberg_dithering */
|
||
/* http://www.tannerhelland.com/4660/dithering-eleven-algorithms-source-code/ */
|
||
/* http://www.efg2.com/Lab/Library/ImageProcessing/DHALF.TXT */
|
||
int run0=0, run1=0, run2=0;
|
||
|
||
void FloydSteinberg(int y, int width)
|
||
{
|
||
|
||
double paldistance; /* not used in this function */
|
||
int16_t red, green, blue, red_error, green_error, blue_error;
|
||
int16_t pos, mult;
|
||
int dx,i, x,x1, total_difference, total_error, total_used;
|
||
int testrun, runs, temperror, z;
|
||
uint8_t drawcolor, r,g,b;
|
||
|
||
if (ditherstart == 0) {
|
||
|
||
/* for hgr color dithering cancel serpentine effect and go forward only
|
||
otherwise groups of 7 pixels for choosing between Orange and Green hgr
|
||
palettes becomes too complicated */
|
||
|
||
/* this solution may effect user definable dithering but it is up to the
|
||
user to make their own pattern work within the program's limitations
|
||
*/
|
||
if (hgrdither == 1) serpentine = 0;
|
||
|
||
if (quietmode == 1) {
|
||
if (mono == 1) puts("Monochrome Dithered Output:");
|
||
else puts("Color Dithered Output:");
|
||
|
||
if (colorbleed < 100)
|
||
printf("Dither = %d - %s, Color Bleed Increase: %d%%\n",dither,dithertext[dither-1],(colorbleed-100)*-1);
|
||
else if (colorbleed > 100)
|
||
printf("Dither = %d - %s, Color Bleed Reduction: %d%%\n",dither,dithertext[dither-1],(colorbleed-100));
|
||
else
|
||
printf("Dither = %d - %s\n",dither,dithertext[dither-1]);
|
||
|
||
if (serpentine == 1) puts("Serpentine effect is on!");
|
||
|
||
}
|
||
ditherstart = 1;
|
||
/* reduce or increase color bleed */
|
||
switch(dither) {
|
||
case FLOYDSTEINBERG: bleed = (16 * colorbleed)/100; break;
|
||
case JARVIS: bleed = (48 * colorbleed)/100; break;
|
||
case STUCKI: bleed = (42 * colorbleed)/100; break;
|
||
case ATKINSON: bleed = (8 * colorbleed)/100; break;
|
||
case BURKES:
|
||
case SIERRA: bleed = (32 * colorbleed)/100; break;
|
||
case SIERRATWO: bleed = (16 * colorbleed)/100; break;
|
||
case SIERRALITE: bleed = (4 * colorbleed)/100; break;
|
||
case CUSTOM: bleed = (customdivisor * colorbleed)/100; break;
|
||
default: bleed = (8 * colorbleed)/100; break; /* same as atkinson */
|
||
}
|
||
if (bleed < 1) bleed = 1;
|
||
}
|
||
|
||
/* When converting to HGR do palette matching here between Green-Violet and
|
||
Orange-Blue palettes in groups of 7 pixels */
|
||
|
||
/* from left to right */
|
||
/* if we are dithering HGR we need to decide if we are using the Orange-Blue palette or
|
||
the Green-Violet palette based on groups of 7 pixels */
|
||
|
||
if (hgrdither == 1) {
|
||
testrun = 0;
|
||
/* the idea here is to work on a copy while we make the first two passes
|
||
to determine the palette */
|
||
|
||
/* on the third (and final) pass, we dither using the 4 color choice
|
||
with the lowest cumulative error for each 7 pixel group */
|
||
|
||
/* this particular idea is based on how Sheldon Simms tohgr program
|
||
decides which palette to use but you probably wouldn't know that
|
||
by just looking at the code */
|
||
|
||
/* Clear the buffers */
|
||
memset(&OrangeBlueError[0],0,640);
|
||
memset(&GreenVioletError[0],0,640);
|
||
memset(&HgrPixelPalette[0],0,320);
|
||
|
||
/* save the original dither buffers */
|
||
/* work on a copy for the first two passes */
|
||
memcpy(&redSave[0],&redDither[0],640);
|
||
memcpy(&greenSave[0],&greenDither[0],640);
|
||
memcpy(&blueSave[0],&blueDither[0],640);
|
||
}
|
||
else {
|
||
testrun = 2;
|
||
}
|
||
|
||
/* if we are dithering color hgr, for the first two test passes, we don't
|
||
bother to diffuse the error beyond the current scanline */
|
||
|
||
/* it is not necessary to do so because all we are concerned with is the
|
||
color of the transformed pixels on the current line, but it is necessary to
|
||
dither the line completely in either palette in order to tansform the pixels
|
||
in the current line */
|
||
for (runs=testrun;runs<3;runs++) {
|
||
|
||
/* big hgr color rigamorole here */
|
||
if (hgrdither == 1) {
|
||
if (runs == 1 || runs == 2) {
|
||
/* restore dither buffer after both test runs for the final run */
|
||
memcpy(&redDither[0],&redSave[0],640);
|
||
memcpy(&greenDither[0],&greenSave[0],640);
|
||
memcpy(&blueSave[0],&blueDither[0],640);
|
||
}
|
||
|
||
/* for the first two runs, dither7 does not change */
|
||
if (runs == 0) {
|
||
dither7 = 'O';
|
||
}
|
||
else if (runs == 1) {
|
||
dither7 = 'G';
|
||
}
|
||
else {
|
||
/* after the first two runs */
|
||
/* determine hgr palette for each pixel based on the first two
|
||
runs here before beginning the 3rd and final run */
|
||
for (x = 0; x < width; x+=7) {
|
||
red_error = green_error = 0;
|
||
for (z = 0; z < 7; z++) {
|
||
red_error += OrangeBlueError[x+z];
|
||
green_error += GreenVioletError[x+z];
|
||
}
|
||
/* if the Green-Violet palette has the closest colors for
|
||
this group then use it. otherwise use the Orange-Blue
|
||
palette */
|
||
if (green_error < red_error) dither7 = 'G';
|
||
else dither7 = 'O';
|
||
/* set the hgr palette for 7 pixels */
|
||
for (z = 0; z < 7; z++) {
|
||
HgrPixelPalette[x+z] = dither7;
|
||
}
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
for (x=0;x<width;x++) {
|
||
|
||
red = redDither[x];
|
||
green = greenDither[x];
|
||
blue = blueDither[x];
|
||
|
||
r = (uint8_t)red;
|
||
g = (uint8_t)green;
|
||
b = (uint8_t)blue;
|
||
|
||
/* for the final pass, use the best hgr 4 color palette, Orange-Blue
|
||
or Green-Violet */
|
||
|
||
/* the palette to use for each pixel comes from an array that was
|
||
built based on the lowest 7 pixel cumulative error between the two
|
||
palettes that were tested on the first and second passes
|
||
respectively */
|
||
if (hgrdither == 1 && runs == 2) dither7 = HgrPixelPalette[x];
|
||
|
||
drawcolor = GetDrawColor(r,g,b,x,y);
|
||
|
||
r = rgbArray[drawcolor][RED];
|
||
g = rgbArray[drawcolor][GREEN];
|
||
b = rgbArray[drawcolor][BLUE];
|
||
|
||
redDither[x] = (int)r;
|
||
greenDither[x] = (int)g;
|
||
blueDither[x] = (int)b;
|
||
|
||
/* the error is linear in this implementation */
|
||
/* - an integer is used so round-off of errors occurs
|
||
- also clipping of the error occurs under some circumstances
|
||
- no luminance consideration
|
||
- no gamma correction
|
||
*/
|
||
|
||
red_error = red - r;
|
||
green_error = green - g;
|
||
blue_error = blue - b;
|
||
|
||
if (runs == 0 || runs == 1) {
|
||
/* for hgr color only accumulate total error per pixel for the first two passes */
|
||
/* use absolute error */
|
||
if (red_error < 0) temperror = red_error * -1;
|
||
else temperror = red_error;
|
||
if (green_error < 0) temperror += (green_error * -1);
|
||
else temperror += green_error;
|
||
if (blue_error < 0) temperror += (blue_error * -1);
|
||
else temperror += blue_error;
|
||
|
||
if (runs == 0) OrangeBlueError[x] = temperror;
|
||
else GreenVioletError[x] = temperror;
|
||
|
||
/* before we do the third pass, these arrays will be processed in 7 pixel chunks
|
||
and the lowest cumulative error in each chunk will determine if the
|
||
Orange-Blue or Green-Violet hgr palette will be used for the 7 pixels in the chunk */
|
||
|
||
}
|
||
|
||
for (i=0;i<3;i++) {
|
||
|
||
/* loop through all 3 RGB channels */
|
||
switch(i) {
|
||
case RED: colorptr = (int16_t *)&redDither[0];
|
||
seedptr = (int16_t *)&redSeed[0];
|
||
seed2ptr = (int16_t *)&redSeed2[0];
|
||
color_error = red_error;
|
||
break;
|
||
case GREEN: colorptr = (int16_t *)&greenDither[0];
|
||
seedptr = (int16_t *)&greenSeed[0];
|
||
seed2ptr = (int16_t *)&greenSeed2[0];
|
||
color_error = green_error;
|
||
break;
|
||
case BLUE: colorptr = (int16_t *)&blueDither[0];
|
||
seedptr = (int16_t *)&blueSeed[0];
|
||
seed2ptr = (int16_t *)&blueSeed2[0];
|
||
color_error = blue_error;
|
||
break;
|
||
}
|
||
|
||
/* diffuse the error based on the dither */
|
||
switch(dither) {
|
||
/* F 1*/
|
||
case FLOYDSTEINBERG:
|
||
/*
|
||
* 7
|
||
3 5 1 (1/16)
|
||
|
||
Serpentine
|
||
|
||
7 *
|
||
1 5 3
|
||
|
||
*/
|
||
|
||
/* if error summing is turned-on add the accumulated rounding error
|
||
to the next pixel */
|
||
if (errorsum == 0) {
|
||
total_difference = 0;
|
||
}
|
||
else {
|
||
total_error = (color_error * 16) / bleed;
|
||
total_used = (color_error * 3)/bleed;
|
||
total_used += (color_error * 5)/bleed;
|
||
total_used += (color_error * 1)/bleed;
|
||
total_used += (color_error * 7)/bleed;
|
||
total_difference = total_error - total_used;
|
||
}
|
||
|
||
/* for serpentine effect alternating scanlines run the error in reverse */
|
||
if (serpentine == 1 && y%2 == 1) {
|
||
/* finish this line */
|
||
/* for serpentine effect line 1 error is added behind */
|
||
if (x > 0) AdjustShortPixel(1,(int16_t *)&colorptr[x-1],(int16_t)((color_error * 7)/bleed)+total_difference);
|
||
/* seed next line forward */
|
||
/* for serpentine effect line 2 error is reversed */
|
||
if (x>0)AdjustShortPixel(threshold,(int16_t *)&seedptr[x-1],(int16_t)((color_error * 1)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+1],(int16_t)((color_error * 3)/bleed));
|
||
|
||
}
|
||
else {
|
||
/* finish this line */
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+1],(int16_t)((color_error * 7)/bleed)+total_difference);
|
||
|
||
/* if making hgr passes 0 and 1 dither first line only */
|
||
if (runs < 2 || ditheroneline == 1) break;
|
||
|
||
/* seed next line forward */
|
||
if (x>0)AdjustShortPixel(threshold,(int16_t *)&seedptr[x-1],(int16_t)((color_error * 3)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+1],(int16_t)((color_error * 1)/bleed));
|
||
}
|
||
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x],(int16_t)((color_error * 5)/bleed));
|
||
break;
|
||
|
||
/* J 2 */
|
||
case JARVIS:
|
||
/*
|
||
* 7 5
|
||
3 5 7 5 3
|
||
1 3 5 3 1 (1/48)
|
||
*/
|
||
|
||
/* finish this line */
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+1],(int16_t)((color_error * 7)/bleed));
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+2],(int16_t)((color_error * 5)/bleed));
|
||
|
||
/* if making hgr passes 0 and 1 dither first line only */
|
||
if (runs < 2 || ditheroneline == 1) break;
|
||
|
||
/* seed next lines forward */
|
||
if (x>0){
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x-1],(int16_t)((color_error * 5)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x-1],(int16_t)((color_error * 3)/bleed));
|
||
}
|
||
if (x>1){
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x-2],(int16_t)((color_error * 3)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x-2],(int16_t)(color_error/bleed));
|
||
|
||
}
|
||
|
||
/* seed next line forward */
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x],(int16_t)((color_error * 7)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+1],(int16_t)((color_error * 5)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+2],(int16_t)((color_error * 3)/bleed));
|
||
|
||
/* seed furthest line forward */
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x],(int16_t)((color_error * 5)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x+1],(int16_t)((color_error * 3)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x+2],(int16_t)(color_error/bleed));
|
||
break;
|
||
|
||
/* S 3 */
|
||
case STUCKI:
|
||
/*
|
||
* 8 4
|
||
2 4 8 4 2
|
||
1 2 4 2 1 (1/42)
|
||
*/
|
||
|
||
/* for serpentine effect alternating scanlines run the error in reverse */
|
||
if (serpentine == 1 && y%2 == 1) {
|
||
/* finish this line */
|
||
if(x>0)AdjustShortPixel(1,(int16_t *)&colorptr[x-1],(int16_t)((color_error * 8)/bleed));
|
||
if(x>1)AdjustShortPixel(1,(int16_t *)&colorptr[x-2],(int16_t)((color_error * 4)/bleed));
|
||
|
||
}
|
||
else {
|
||
/* finish this line */
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+1],(int16_t)((color_error * 8)/bleed));
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+2],(int16_t)((color_error * 4)/bleed));
|
||
}
|
||
|
||
/* if making hgr passes 0 and 1 dither first line only */
|
||
if (runs < 2 || ditheroneline == 1) break;
|
||
|
||
/* seed next lines forward */
|
||
if (x>0){
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x-1],(int16_t)((color_error * 4)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x-1],(int16_t)((color_error * 2)/bleed));
|
||
}
|
||
if (x>1){
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x-2],(int16_t)((color_error * 2)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x-2],(int16_t)(color_error/bleed));
|
||
|
||
}
|
||
|
||
/* seed next line forward */
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x],(int16_t)((color_error * 8)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+1],(int16_t)((color_error * 4)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+2],(int16_t)((color_error * 2)/bleed));
|
||
|
||
/* seed furthest line forward */
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x],(int16_t)((color_error * 4)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x+1],(int16_t)((color_error * 2)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x+2],(int16_t)(color_error/bleed));
|
||
break;
|
||
|
||
/* A 4 */
|
||
case ATKINSON:
|
||
/*
|
||
* 1 1
|
||
1 1 1
|
||
1 (1/8)
|
||
|
||
*/
|
||
|
||
/* for serpentine effect alternating scanlines run the error in reverse */
|
||
if (serpentine == 1 && y%2 == 1) {
|
||
/* finish this line */
|
||
if (x>0)AdjustShortPixel(1,(int16_t *)&colorptr[x-1],(int16_t)(color_error/bleed));
|
||
if (x>1)AdjustShortPixel(1,(int16_t *)&colorptr[x-2],(int16_t)(color_error/bleed));
|
||
}
|
||
else {
|
||
/* finish this line */
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+1],(int16_t)(color_error/bleed));
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+2],(int16_t)(color_error/bleed));
|
||
}
|
||
|
||
/* if making hgr passes 0 and 1 dither first line only */
|
||
if (runs < 2 || ditheroneline == 1) break;
|
||
|
||
/* seed next line forward */
|
||
if (x>0)AdjustShortPixel(threshold,(int16_t *)&seedptr[x-1],(int16_t)(color_error/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x],(int16_t)(color_error/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+1],(int16_t)(color_error/bleed));
|
||
|
||
/* seed furthest line forward */
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x],(int16_t)(color_error/bleed));
|
||
break;
|
||
|
||
/* B 5 */
|
||
case BURKES:
|
||
/*
|
||
* 8 4
|
||
2 4 8 4 2 (1/32)
|
||
*/
|
||
|
||
/* for serpentine effect alternating scanlines run the error in reverse */
|
||
if (serpentine == 1 && y%2 == 1) {
|
||
/* finish this line */
|
||
if(x>0)AdjustShortPixel(1,(int16_t *)&colorptr[x-1],(int16_t)((color_error * 8) /bleed));
|
||
if(x>1)AdjustShortPixel(1,(int16_t *)&colorptr[x-2],(int16_t)((color_error * 4) /bleed));
|
||
|
||
}
|
||
else {
|
||
/* finish this line */
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+1],(int16_t)((color_error * 8) /bleed));
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+2],(int16_t)((color_error * 4) /bleed));
|
||
|
||
}
|
||
|
||
/* if making hgr passes 0 and 1 dither first line only */
|
||
if (runs < 2 || ditheroneline == 1) break;
|
||
|
||
/* seed next line forward */
|
||
if (x>0)AdjustShortPixel(threshold,(int16_t *)&seedptr[x-1],(int16_t)((color_error * 4) / bleed));
|
||
if (x>1)AdjustShortPixel(threshold,(int16_t *)&seedptr[x-2],(int16_t)((color_error * 2) / bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x],(int16_t)((color_error * 8) /bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+1],(int16_t)((color_error * 4) /bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+2],(int16_t)((color_error * 2) /bleed));
|
||
break;
|
||
|
||
/* SI 6 */
|
||
case SIERRA:
|
||
/*
|
||
* 5 3
|
||
2 4 5 4 2
|
||
2 3 2 (1/32)
|
||
*/
|
||
/* for serpentine effect alternating scanlines run the error in reverse */
|
||
if (serpentine == 1 && y%2 == 1) {
|
||
/* finish this line */
|
||
if(x>0)AdjustShortPixel(1,(int16_t *)&colorptr[x-1],(int16_t)((color_error * 5)/bleed));
|
||
if(x>1)AdjustShortPixel(1,(int16_t *)&colorptr[x-2],(int16_t)((color_error * 3)/bleed));
|
||
}
|
||
else {
|
||
/* finish this line */
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+1],(int16_t)((color_error * 5)/bleed));
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+2],(int16_t)((color_error * 3)/bleed));
|
||
}
|
||
|
||
/* if making hgr passes 0 and 1 dither first line only */
|
||
if (runs < 2 || ditheroneline == 1) break;
|
||
|
||
/* seed next lines forward */
|
||
if (x>0){
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x-1],(int16_t)((color_error * 4)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x-1],(int16_t)((color_error * 2)/bleed));
|
||
}
|
||
if (x>1){
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x-2],(int16_t)((color_error * 2)/bleed));
|
||
}
|
||
|
||
/* seed next line forward */
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x],(int16_t)((color_error * 5)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+1],(int16_t)((color_error * 4)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+2],(int16_t)((color_error * 2)/bleed));
|
||
|
||
/* seed furthest line forward */
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x],(int16_t)((color_error * 3)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x+1],(int16_t)((color_error * 2)/bleed));
|
||
break;
|
||
|
||
/* S2 7 */
|
||
case SIERRATWO:
|
||
/*
|
||
* 4 3
|
||
1 2 3 2 1 (1/16)
|
||
*/
|
||
|
||
/* for serpentine effect alternating scanlines run the error in reverse */
|
||
if (serpentine == 1 && y%2 == 1) {
|
||
/* finish this line */
|
||
if(x>0)AdjustShortPixel(1,(int16_t *)&colorptr[x-1],(int16_t)((color_error*4)/bleed));
|
||
if(x>1)AdjustShortPixel(1,(int16_t *)&colorptr[x-2],(int16_t)((color_error*3)/bleed));
|
||
}
|
||
else {
|
||
/* finish this line */
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+1],(int16_t)((color_error*4)/bleed));
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+2],(int16_t)((color_error*3)/bleed));
|
||
}
|
||
|
||
/* if making hgr passes 0 and 1 dither first line only */
|
||
if (runs < 2 || ditheroneline == 1) break;
|
||
|
||
/* seed next line forward */
|
||
if (x>0)AdjustShortPixel(threshold,(int16_t *)&seedptr[x-1],(int16_t)((color_error*2)/bleed));
|
||
if (x>1)AdjustShortPixel(threshold,(int16_t *)&seedptr[x-2],(int16_t)(color_error/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x],(int16_t)((color_error*3)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+1],(int16_t)((color_error*2)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+2],(int16_t)(color_error/bleed));
|
||
break;
|
||
|
||
/* SL 8 */
|
||
case SIERRALITE:
|
||
/*
|
||
* 2
|
||
1 1 (1/4)
|
||
*/
|
||
|
||
/* for serpentine effect alternating scanlines run the error in reverse */
|
||
if (serpentine == 1 && y%2 == 1) {
|
||
/* finish this line */
|
||
if (x>0)AdjustShortPixel(1,(int16_t *)&colorptr[x-1],(int16_t)((color_error * 2) /bleed));
|
||
|
||
/* seed next line forward */
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+1],(int16_t)(color_error/bleed));
|
||
}
|
||
else {
|
||
/* finish this line */
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+1],(int16_t)((color_error * 2) /bleed));
|
||
/* if making hgr passes 0 and 1 dither first line only */
|
||
if (runs < 2 || ditheroneline == 1) break;
|
||
|
||
/* seed next line forward */
|
||
if (x>0)AdjustShortPixel(threshold,(int16_t *)&seedptr[x-1],(int16_t)(color_error/bleed));
|
||
}
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x],(int16_t)(color_error/bleed));
|
||
|
||
break;
|
||
|
||
|
||
case CUSTOM:
|
||
|
||
/* 0,0,0,0,0,*,0,0,0,0,0
|
||
0,0,0,0,0,0,0,0,0,0,0
|
||
0,0,0,0,0,0,0,0,0,0,0 */
|
||
|
||
for (dx = 0,pos=x-5;dx < 11; dx++,pos++) {
|
||
/* finish this line */
|
||
if (pos < 0) continue;
|
||
|
||
mult = customdither[0][dx];
|
||
if (mult > 0) {
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[pos],(int16_t)((color_error * mult) /bleed));
|
||
}
|
||
|
||
/* if making hgr passes 0 and 1 dither first line only */
|
||
if (runs < 2 || ditheroneline == 1) continue;
|
||
|
||
/* seed next line forward */
|
||
mult = customdither[1][dx];
|
||
if (mult > 0) {
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[pos],(int16_t)((color_error * mult) /bleed));
|
||
}
|
||
/* seed furthest line forward */
|
||
mult = customdither[2][dx];
|
||
if (mult > 0) {
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[pos],(int16_t)((color_error * mult) /bleed));
|
||
}
|
||
|
||
}
|
||
break;
|
||
|
||
default: /* buckels dither - d9 */
|
||
/*
|
||
* 2 1
|
||
1 2 1
|
||
1 (1/8)
|
||
|
||
Serpentine
|
||
|
||
1 2 *
|
||
1 2 1
|
||
1
|
||
|
||
*/
|
||
|
||
/* if error summing is turned-on add the accumulated rounding error
|
||
to the next pixel */
|
||
if (errorsum == 0) {
|
||
total_difference = 0;
|
||
}
|
||
else {
|
||
total_error = (color_error * 8) / bleed;
|
||
total_used = (color_error * 2)/bleed;
|
||
total_used += (color_error * 2)/bleed;
|
||
total_used += (color_error /bleed);
|
||
total_used += (color_error /bleed);
|
||
total_used += (color_error /bleed);
|
||
total_used += (color_error /bleed);
|
||
total_difference = total_error - total_used;
|
||
}
|
||
|
||
/* for serpentine effect alternating scanlines run the error in reverse */
|
||
if (serpentine == 1 && y%2 == 1) {
|
||
/* finish this line */
|
||
if (x>0)AdjustShortPixel(1,(int16_t *)&colorptr[x-1],(int16_t)((color_error*2)/bleed)+total_difference);
|
||
if (x>1)AdjustShortPixel(1,(int16_t *)&colorptr[x-2],(int16_t)(color_error/bleed));
|
||
}
|
||
else {
|
||
/* finish this line */
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+1],(int16_t)((color_error*2)/bleed)+total_difference);
|
||
AdjustShortPixel(1,(int16_t *)&colorptr[x+2],(int16_t)(color_error/bleed));
|
||
}
|
||
|
||
/* if making hgr passes 0 and 1 dither first line only */
|
||
if (runs < 2 || ditheroneline == 1) break;
|
||
|
||
/* seed next line forward */
|
||
if (x>0)AdjustShortPixel(threshold,(int16_t *)&seedptr[x-1],(int16_t)(color_error/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x],(int16_t)((color_error*2)/bleed));
|
||
AdjustShortPixel(threshold,(int16_t *)&seedptr[x+1],(int16_t)(color_error/bleed));
|
||
|
||
/* seed furthest line forward */
|
||
AdjustShortPixel(threshold,(int16_t *)&seed2ptr[x],(int16_t)(color_error/bleed));
|
||
|
||
|
||
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/* turn-off hgr color dither */
|
||
dither7 = 0;
|
||
|
||
/* get the mask line from the mask file if we are overlaying this image */
|
||
/* the mask file is a 256 color BMP and is applied after rendering is complete and */
|
||
/* immediately before Preview files are written to disk and the DHGR buffer is plotted */
|
||
/* for monochrome masking the maskfile is either 280 x 192 or 560 x 192 */
|
||
/* for color masking the maskfile is always 140 x 192 */
|
||
|
||
if (overlay == 1) {
|
||
ReadMaskLine(y);
|
||
}
|
||
|
||
/* plot dithered scanline in DHGR buffer using selected conversion palette */
|
||
/* plot dithered scanline in Preview buffer using selected preview palette */
|
||
for (x=0,x1=0;x<width;x++) {
|
||
|
||
|
||
maskpixel = 0;
|
||
if (overlay == 1) {
|
||
overcolor = maskline[x];
|
||
if (mono == 1) {
|
||
/* for monochrome masking if an area is black or white
|
||
it overlays the image */
|
||
if (overcolor == 0 || overcolor == 15) maskpixel = 1;
|
||
}
|
||
else {
|
||
/* for color masking clearcolor is the transparent color for the mask */
|
||
/* if the overlay color is some other color then the pixel is overlaid
|
||
with the mask color */
|
||
if (overcolor != clearcolor) maskpixel = 1;
|
||
}
|
||
|
||
}
|
||
|
||
if (maskpixel == 1) {
|
||
drawcolor = (uint8_t)overcolor;
|
||
}
|
||
else {
|
||
r = (uint8_t)redDither[x];
|
||
g = (uint8_t)greenDither[x];
|
||
b = (uint8_t)blueDither[x];
|
||
drawcolor = GetMedColor(r,g,b,&paldistance);
|
||
}
|
||
|
||
if (mono == 1) {
|
||
if (width == 280) hrmonoplot(x,y,drawcolor);
|
||
else dhrmonoplot(x,y,drawcolor);
|
||
}
|
||
else dhrplot(x,y,drawcolor);
|
||
|
||
/* if color preview option, plot double-wide pixels in pairs of 24-bit RGB triples */
|
||
/* unless plotting double lo-res */
|
||
if (preview == 1) {
|
||
if (mono == 1 || (loresoutput == 1 && lores == 0)) {
|
||
previewline[x1] = rgbPreview[drawcolor][BLUE]; x1++;
|
||
previewline[x1] = rgbPreview[drawcolor][GREEN];x1++;
|
||
previewline[x1] = rgbPreview[drawcolor][RED]; x1++;
|
||
|
||
}
|
||
else {
|
||
/* we are plotting a double pixel in a 6 byte chunk - b,g,r,b,g,r */
|
||
previewline[x1] = previewline[x1+3] = rgbPreview[drawcolor][BLUE]; x1++;
|
||
previewline[x1] = previewline[x1+3] = rgbPreview[drawcolor][GREEN];x1++;
|
||
previewline[x1] = previewline[x1+3] = rgbPreview[drawcolor][RED]; x1+=4;
|
||
}
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
uint16_t WriteDIBHeader(FILE *fp, uint16_t pixels, uint16_t rasters)
|
||
{
|
||
uint16_t outpacket;
|
||
int c;
|
||
|
||
memset((char *)&mybmp.bfi.bfType[0],0,sizeof(BMPHEADER));
|
||
|
||
/* create the info header */
|
||
mybmp.bmi.biSize = (uint32_t)sizeof(BITMAPINFOHEADER);
|
||
mybmp.bmi.biWidth = (uint32_t)pixels;
|
||
mybmp.bmi.biHeight = (uint32_t)rasters;
|
||
mybmp.bmi.biPlanes = 1;
|
||
mybmp.bmi.biBitCount = 24;
|
||
mybmp.bmi.biCompression = (uint32_t) BI_RGB;
|
||
|
||
/* BMP scanlines are padded to a multiple of 4 bytes (DWORD) */
|
||
outpacket = (uint16_t)mybmp.bmi.biWidth * 3;
|
||
while (outpacket%4 != 0)outpacket++;
|
||
mybmp.bmi.biSizeImage = (uint32_t)outpacket;
|
||
mybmp.bmi.biSizeImage *= mybmp.bmi.biHeight;
|
||
|
||
/* create the file header */
|
||
mybmp.bfi.bfType[0] = 'B';
|
||
mybmp.bfi.bfType[1] = 'M';
|
||
mybmp.bfi.bfOffBits = (uint32_t) sizeof(BMPHEADER);
|
||
mybmp.bfi.bfSize = mybmp.bmi.biSizeImage + mybmp.bfi.bfOffBits;
|
||
|
||
/* write the header for the output BMP */
|
||
c = fwrite((char *)&mybmp.bfi.bfType[0],sizeof(BMPHEADER),1,fp);
|
||
|
||
if (c!= 1)outpacket = 0;
|
||
|
||
return outpacket;
|
||
}
|
||
|
||
void DiffuseError(uint16_t outpacket)
|
||
{
|
||
/*
|
||
http://en.wikipedia.org/wiki/Error_diffusion
|
||
|
||
x,y axis (two dimensional) color error diffusion
|
||
|
||
in the case of a BMP this disperses the color from the bottom left diagonally through the image
|
||
in the case of some other image format that stores rasters from the top instead of the bottom this would
|
||
disperse the color diagonally from the top left.
|
||
|
||
the following scaling ratio is applied:
|
||
|
||
1/2 of the gun value of the current pixel is summed with previous pixels as follows:
|
||
|
||
1/4 of the gun value of the previous pixel is added to 1/2 the value of the current pixel
|
||
1/8 of the gun value from the previous pixel on the previous line is added to the 1/2 the value of the current pixel
|
||
1/8 of the gun value from the same pixel on the previous line is added to 1/2 the value of the current pixel
|
||
|
||
*/
|
||
|
||
uint8_t r2, g2, b2, r4, g4, b4;
|
||
uint16_t r, g, b;
|
||
int16_t i;
|
||
|
||
/* create previous pixels for current pixels */
|
||
/* previous pixel on same line */
|
||
b2 = dibscanline1[0];
|
||
g2 = dibscanline1[1];
|
||
r2 = dibscanline1[2];
|
||
|
||
/* previous pixel from previous line */
|
||
b4 = dibscanline2[0];
|
||
g4 = dibscanline2[1];
|
||
r4 = dibscanline2[2];
|
||
|
||
|
||
for (i=0; i < outpacket; i+=3) {
|
||
|
||
/* RGB Triples */
|
||
b = (uint16_t) dibscanline1[i];
|
||
g = (uint16_t) dibscanline1[i+1];
|
||
r = (uint16_t) dibscanline1[i+2];
|
||
|
||
/* add pixels to create 7/8 ratio of required value */
|
||
/* 4 - current pixels
|
||
2 - previous pixels
|
||
1 - previous pixel below */
|
||
b *= 4; b += b2; b += b2; b += b4;
|
||
g *= 4; g += g2; g += g2; g += g4;
|
||
r *= 4; r += r2; r += r2; r += r4;
|
||
|
||
/* add 1 current pixel below - 1/8 ratio of required value */
|
||
/* carry forward b4,g4 and r4 to next pixel */
|
||
/* current pixel below becomes previous pixel below */
|
||
b4 = dibscanline2[i]; b += b4; while (b % 8 != 0) b++; b /=8;
|
||
g4 = dibscanline2[i+1]; g += g4; while (g % 8 != 0) g++; g /=8;
|
||
r4 = dibscanline2[i+2]; r += r4; while (r % 8 != 0) r++; r /=8;
|
||
|
||
/* assign new color to current pixel */
|
||
/* and carry forward b2,g2 and r2 to next pixel */
|
||
/* current pixel becomes previous pixel */
|
||
|
||
dibscanline1[i] = b2 = (uint8_t)b;
|
||
dibscanline1[i+1] = g2 = (uint8_t)g;
|
||
dibscanline1[i+2] = r2 = (uint8_t)r;
|
||
}
|
||
}
|
||
|
||
|
||
/* create an error-diffused copy of the input file
|
||
and use that instead */
|
||
FILE *ReadDIBFile(FILE *fp, uint16_t packet)
|
||
{
|
||
FILE *fpdib;
|
||
uint16_t y,outpacket;
|
||
|
||
|
||
if((fpdib=fopen(dibfile,"wb"))==NULL) {
|
||
printf("Error Opening %s for writing!\n",dibfile);
|
||
return fp;
|
||
}
|
||
|
||
outpacket = WriteDIBHeader(fpdib,bmpwidth,bmpheight);
|
||
if (outpacket != packet) {
|
||
fclose(fpdib);
|
||
remove(dibfile);
|
||
printf("Error writing header to %s!\n",dibfile);
|
||
return fp;
|
||
}
|
||
|
||
/* seek past extraneous info in header if any */
|
||
fseek(fp,bfi.bfOffBits,SEEK_SET);
|
||
for (y=0;y<bmpheight;y++) {
|
||
fread((char *)&bmpscanline[0],1,packet,fp);
|
||
memcpy(&dibscanline1[0],&bmpscanline[0],packet);
|
||
if (y==0) memcpy(&dibscanline2[0],&bmpscanline[0],packet);
|
||
DiffuseError(packet);
|
||
/* save a copy of the previous line */
|
||
if (diffuse == 2) {
|
||
/* if diffusion is by original value use pure line */
|
||
memcpy(&dibscanline2[0],&bmpscanline[0],packet);
|
||
}
|
||
else {
|
||
/* otherwise use diffused line */
|
||
memcpy(&dibscanline2[0],&dibscanline1[0],packet);
|
||
}
|
||
fwrite((char *)&dibscanline1[0],1,packet,fpdib);
|
||
|
||
}
|
||
fclose(fpdib);
|
||
fclose(fp);
|
||
|
||
if((fp=fopen(dibfile,"rb"))==NULL) {
|
||
printf("Error Opening %s for reading!\n",dibfile);
|
||
if((fp=fopen(bmpfile,"rb"))==NULL) {
|
||
printf("Error Opening %s for reading!\n",bmpfile);
|
||
return fp;
|
||
}
|
||
}
|
||
/* read the header stuff into the appropriate structures */
|
||
fread((char *)&bfi.bfType[0],
|
||
sizeof(BITMAPFILEHEADER),1,fp);
|
||
fread((char *)&bmi.biSize,
|
||
sizeof(BITMAPINFOHEADER),1,fp);
|
||
return fp;
|
||
}
|
||
|
||
|
||
/* helper functions for horizontal resizing */
|
||
int ExpandBMPLine(uint8_t *src, uint8_t *dest, uint16_t srcwidth, uint16_t scale)
|
||
{
|
||
int i,j,k;
|
||
unsigned char r,g,b;
|
||
|
||
srcwidth *=3;
|
||
for (i=0,j=0,k=0;i<srcwidth;) {
|
||
b = src[i++];
|
||
g = src[i++];
|
||
r = src[i++];
|
||
|
||
for (j=0;j<scale;j++) {
|
||
dest[k] = b; k++;
|
||
dest[k] = g; k++;
|
||
dest[k] = r; k++;
|
||
}
|
||
}
|
||
return k;
|
||
}
|
||
|
||
int ShrinkBMPLine(uint8_t *src, uint8_t *dest, int srcwidth)
|
||
{
|
||
int i,j,k;
|
||
uint16_t r,g,b;
|
||
|
||
|
||
scale = srcwidth / 140;
|
||
|
||
srcwidth *=3;
|
||
for (i=0,j=0,k=0;k<srcwidth;) {
|
||
b = g = r = 0;
|
||
for (j=0;j<scale;j++) {
|
||
b += src[k++];
|
||
g += src[k++];
|
||
r += src[k++];
|
||
}
|
||
|
||
dest[i] = (b/scale);i++;
|
||
dest[i] = (g/scale);i++;
|
||
dest[i] = (r/scale);i++;
|
||
|
||
}
|
||
return i;
|
||
}
|
||
|
||
|
||
/* shrink 640 or 320 to 140 */
|
||
/* uses dhrbuf as a work buffer and output buffer */
|
||
void ShrinkPixels(FILE *fp)
|
||
{
|
||
|
||
int packet = (bmpwidth * 3);
|
||
|
||
while (packet%4 != 0)packet++;
|
||
|
||
fread((char *)&bmpscanline[0],1,packet,fp);
|
||
ExpandBMPLine((uint8_t *)&bmpscanline[0],(uint8_t *)&dhrbuf[0],bmpwidth,7);
|
||
ShrinkBMPLine((uint8_t *)&dhrbuf[0],(uint8_t *)&dhrbuf[0],(uint16_t)(bmpwidth * 7));
|
||
}
|
||
|
||
/* table-driven scaling from 25 to 24 lines */
|
||
void ShrinkLines25to24(FILE *fp, FILE *fp2)
|
||
{
|
||
uint16_t pixel,x,i;
|
||
uint16_t x1,x2;
|
||
|
||
ShrinkPixels(fp);
|
||
memcpy(&dibscanline1[0],&dhrbuf[0],420);
|
||
if (bmpheight == 400) {
|
||
ShrinkPixels(fp);
|
||
for (x=0;x<420;x++) {
|
||
pixel = (uint16_t) dhrbuf[x];
|
||
pixel += dibscanline1[x];
|
||
dibscanline1[x] = (uint8_t) (pixel/2);
|
||
}
|
||
}
|
||
for (i=0;i<24;i++) {
|
||
ShrinkPixels(fp);
|
||
memcpy(&dibscanline2[0],&dhrbuf[0],420);
|
||
if (bmpheight == 400) {
|
||
ShrinkPixels(fp);
|
||
for (x=0;x<420;x++) {
|
||
pixel = (uint16_t) dhrbuf[x];
|
||
pixel += dibscanline2[x];
|
||
dibscanline2[x] = (uint8_t) (pixel/2);
|
||
}
|
||
}
|
||
|
||
for (x=0;x<420;x++) {
|
||
x1 = (uint16_t)dibscanline1[x];
|
||
x2 = (uint16_t)dibscanline2[x];
|
||
pixel = (uint16_t) (x1 * mix25to24[i][0]) + (x2 * mix25to24[i][1]);
|
||
bmpscanline[x] = (uint8_t)(pixel/25);
|
||
}
|
||
fwrite((char *)&bmpscanline[0],1,420,fp2);
|
||
if (i<23)memcpy(&dibscanline1[0],&dibscanline2[0],420);
|
||
}
|
||
}
|
||
|
||
|
||
/* 640 x 480 scaled to 140 x 192 */
|
||
void ShrinkLines640x480(FILE *fp, FILE *fp2)
|
||
{
|
||
uint16_t pixel1,pixel2,x,i;
|
||
|
||
ShrinkPixels(fp);
|
||
memcpy(&dibscanline1[0],&dhrbuf[0],420);
|
||
ShrinkPixels(fp);
|
||
memcpy(&dibscanline2[0],&dhrbuf[0],420);
|
||
ShrinkPixels(fp);
|
||
memcpy(&dibscanline3[0],&dhrbuf[0],420);
|
||
ShrinkPixels(fp);
|
||
memcpy(&dibscanline4[0],&dhrbuf[0],420);
|
||
ShrinkPixels(fp);
|
||
|
||
for (x=0;x<420;x++) {
|
||
pixel1 = (uint16_t) dibscanline1[x];
|
||
pixel1 += dibscanline2[x];
|
||
pixel1 *= 2;
|
||
pixel1 += dibscanline3[x];
|
||
dibscanline1[x] = (uint8_t) (pixel1/5);
|
||
|
||
pixel2 = (uint16_t) dhrbuf[x];
|
||
pixel2 += dibscanline4[x];
|
||
pixel2 *= 2;
|
||
pixel2 += dibscanline3[x];
|
||
dibscanline2[x] = (uint8_t) (pixel2/5);
|
||
}
|
||
|
||
fwrite((char *)&dibscanline1[0],1,420,fp2);
|
||
fwrite((char *)&dibscanline2[0],1,420,fp2);
|
||
}
|
||
|
||
/* merges the RGB values of 2 lines into one */
|
||
void ShrinkLines560x384(FILE *fp, FILE *fp2)
|
||
{
|
||
|
||
uint16_t x, pixel, packet = (bmpwidth * 3);
|
||
|
||
while (packet%4 != 0)packet++;
|
||
|
||
fread((char *)&bmpscanline[0],1,packet,fp);
|
||
ShrinkBMPLine((uint8_t *)&bmpscanline[0],(uint8_t *)&dibscanline1[0],bmpwidth);
|
||
fread((char *)&bmpscanline[0],1,packet,fp);
|
||
ShrinkBMPLine((uint8_t *)&bmpscanline[0],(uint8_t *)&dibscanline2[0],bmpwidth);
|
||
for (x=0;x<420;x++) {
|
||
pixel = (uint16_t)dibscanline1[x];
|
||
pixel+= dibscanline2[x];
|
||
bmpscanline[x] = (uint8_t)(pixel/2);
|
||
}
|
||
fwrite((char *)&bmpscanline[0],1,420,fp2);
|
||
}
|
||
|
||
/* lo-res and double lo-res input files are in multiples of 80 pixels */
|
||
int ShrinkLoResLine(uint8_t *src, uint8_t *dest, int srcwidth)
|
||
{
|
||
int i,j,k;
|
||
uint16_t r,g,b;
|
||
|
||
scale = srcwidth / 80;
|
||
|
||
srcwidth *=3;
|
||
for (i=0,j=0,k=0;k<srcwidth;) {
|
||
b = g = r = 0;
|
||
for (j=0;j<scale;j++) {
|
||
b += src[k++];
|
||
g += src[k++];
|
||
r += src[k++];
|
||
}
|
||
|
||
dest[i] = (b/scale);i++;
|
||
dest[i] = (g/scale);i++;
|
||
dest[i] = (r/scale);i++;
|
||
|
||
}
|
||
return i;
|
||
}
|
||
|
||
|
||
void ShrinkLoResData(FILE *fp, FILE *fp2)
|
||
{
|
||
|
||
uint16_t x, x1, x2, y, lines, srcwidth, packet = (bmpwidth * 3), pixel;
|
||
|
||
while (packet%4 != 0)packet++;
|
||
|
||
|
||
switch(bmpwidth) {
|
||
case 40:
|
||
case 80:
|
||
case 88: lines = 1; srcwidth = 80; break;
|
||
case 160:
|
||
case 176: lines = 2; srcwidth = 160; break;
|
||
case 320: lines = 4; srcwidth = 320; break;
|
||
case 560: lines = 8; srcwidth = 560; break;
|
||
case 640: lines = 10;srcwidth = 640; break;
|
||
}
|
||
|
||
/* clear accumulators */
|
||
memset(&redDither[0],0,480);
|
||
memset(&greenDither[0],0,480);
|
||
memset(&blueDither[0],0,480);
|
||
|
||
/* scale up */
|
||
for (y = 0; y < lines; y++) {
|
||
|
||
if (bmpwidth == 40) {
|
||
fread((char *)&dibscanline1[0],1,packet,fp);
|
||
/* double the width */
|
||
for (x = 0, x1 = 0, x2 = 0; x < 40; x++) {
|
||
bmpscanline[x2] = bmpscanline[x2+3] = dibscanline1[x1]; x1++; x2++;
|
||
bmpscanline[x2] = bmpscanline[x2+3] = dibscanline1[x1]; x1++; x2++;
|
||
bmpscanline[x2] = bmpscanline[x2+3] = dibscanline1[x1]; x1++; x2+=4;
|
||
}
|
||
}
|
||
else {
|
||
fread((char *)&bmpscanline[0],1,packet,fp);
|
||
}
|
||
ShrinkLoResLine((uint8_t *)&bmpscanline[0],(uint8_t *)&dibscanline1[0],srcwidth);
|
||
|
||
for (x = 0, x1=0; x < 80; x++) {
|
||
blueDither[x] += dibscanline1[x1]; x1++;
|
||
greenDither[x] += dibscanline1[x1]; x1++;
|
||
redDither[x] += dibscanline1[x1]; x1++;
|
||
|
||
}
|
||
}
|
||
|
||
/* scale down */
|
||
for (x = 0, x1=0; x < 80; x++) {
|
||
pixel = blueDither[x] / lines;
|
||
bmpscanline[x1] = (uint8_t) pixel; x1++;
|
||
pixel = greenDither[x] / lines;
|
||
bmpscanline[x1] = (uint8_t) pixel; x1++;
|
||
pixel = redDither[x] / lines;
|
||
bmpscanline[x1] = (uint8_t) pixel; x1++;
|
||
|
||
}
|
||
fwrite((char *)&bmpscanline[0],1,240,fp2);
|
||
}
|
||
|
||
|
||
/* create a resized copy of the input file
|
||
and use that instead */
|
||
FILE *ResizeBMP(FILE *fp, int16_t resize)
|
||
{
|
||
FILE *fp2;
|
||
uint16_t x,y,packet,outpacket,chunks;
|
||
uint16_t i,j,r,g,b;
|
||
uint32_t offset=0L;
|
||
|
||
#ifdef TURBOC
|
||
if (resize == 0)return NULL;
|
||
#endif
|
||
|
||
if((fp2=fopen(scaledfile,"wb"))==NULL) {
|
||
printf("Error Opening %s for writing!\n",scaledfile);
|
||
return fp;
|
||
}
|
||
|
||
if (loresoutput == 1) {
|
||
/* Lo-Res and Double Lo-Res */
|
||
if (appletop == 0) outpacket = WriteDIBHeader(fp2,80,48);
|
||
else outpacket = WriteDIBHeader(fp2,80,40);
|
||
if (outpacket != 240) {
|
||
fclose(fp2);
|
||
remove(scaledfile);
|
||
printf("Error writing header to %s!\n",scaledfile);
|
||
return fp;
|
||
}
|
||
}
|
||
else {
|
||
/* HGR and DHGR */
|
||
if (justify == 1) outpacket = WriteDIBHeader(fp2,280,192);
|
||
else outpacket = WriteDIBHeader(fp2,140,192);
|
||
if (outpacket != 420 && outpacket != 840) {
|
||
fclose(fp2);
|
||
remove(scaledfile);
|
||
printf("Error writing header to %s!\n",scaledfile);
|
||
return fp;
|
||
}
|
||
}
|
||
|
||
packet = bmpwidth * 3;
|
||
while (packet%4 != 0)packet++;
|
||
|
||
if (justify == 1) {
|
||
if (loresoutput == 0) {
|
||
/* HGR and DHGR */
|
||
switch (bmpwidth) {
|
||
case 640:
|
||
if (jxoffset > -1) {
|
||
if (jxoffset > 80) jxoffset = 80;
|
||
offset+= jxoffset * 3;
|
||
}
|
||
else {
|
||
offset += 120;
|
||
}
|
||
if (bmpheight == 480) {
|
||
if (jyoffset > -1) {
|
||
if (jyoffset > 96)jyoffset = 0;
|
||
else jyoffset = 96 - jyoffset;
|
||
offset += (1920L * jyoffset);
|
||
}
|
||
else {
|
||
offset += (1920L * 48);
|
||
}
|
||
}
|
||
if (bmpheight == 400) {
|
||
if (jyoffset > -1) {
|
||
if (jyoffset > 16)jyoffset = 0;
|
||
else jyoffset = 16 - jyoffset;
|
||
offset += (1920L * jyoffset);
|
||
}
|
||
else {
|
||
offset += (1920L * 8);
|
||
}
|
||
}
|
||
break;
|
||
|
||
case 320:
|
||
if (jxoffset > -1) {
|
||
if (jxoffset > 40) jxoffset = 40;
|
||
offset+= jxoffset * 3;
|
||
}
|
||
else {
|
||
offset += 60;
|
||
}
|
||
if (jyoffset > -1) {
|
||
if (jyoffset > 8)jyoffset = 0;
|
||
else jyoffset = 8 - jyoffset;
|
||
offset += (960L * jyoffset);
|
||
}
|
||
else {
|
||
offset += (960L * 4);
|
||
}
|
||
break;
|
||
|
||
}
|
||
}
|
||
else {
|
||
/* LGR and DLGR */
|
||
offset += (jyoffset * packet);
|
||
offset += (jxoffset * 3);
|
||
}
|
||
|
||
}
|
||
|
||
/* seek past extraneous info in header if any */
|
||
fseek(fp,bfi.bfOffBits+offset,SEEK_SET);
|
||
|
||
if (justify == 1 && loresoutput == 0) {
|
||
for (y = 0;y< 192;y++) {
|
||
fread((char *)&dibscanline1[0],1,packet,fp);
|
||
if (bmpheight == 200) {
|
||
/* no merging at all on 320 x 200 */
|
||
fwrite((char *)&dibscanline1[0],1,outpacket,fp2);
|
||
continue;
|
||
}
|
||
fread((char *)&dibscanline2[0],1,packet,fp);
|
||
for (x = 0,i=0,j=0;x<280;x++) {
|
||
b = (uint16_t)dibscanline1[i]; b+= dibscanline2[i]; i++;
|
||
g = (uint16_t)dibscanline1[i]; g+= dibscanline2[i]; i++;
|
||
r = (uint16_t)dibscanline1[i]; r+= dibscanline2[i]; i++;
|
||
/* half merge (merge vertically) unless merge is turned-on */
|
||
if (merge == 0) {
|
||
i+=3;b*=2;g*=2;r*=2;
|
||
}
|
||
else {
|
||
b += dibscanline1[i]; b+= dibscanline2[i]; i++;
|
||
g += dibscanline1[i]; g+= dibscanline2[i]; i++;
|
||
r += dibscanline1[i]; r+= dibscanline2[i]; i++;
|
||
}
|
||
bmpscanline[j] = (uint8_t) (uint16_t)(b/4);j++;
|
||
bmpscanline[j] = (uint8_t) (uint16_t)(g/4);j++;
|
||
bmpscanline[j] = (uint8_t) (uint16_t)(r/4);j++;
|
||
}
|
||
fwrite((char *)&bmpscanline[0],1,outpacket,fp2);
|
||
}
|
||
}
|
||
else {
|
||
if (loresoutput == 1) {
|
||
/* LGR and DLGR input file */
|
||
if (appletop == 1) chunks = 40;
|
||
else chunks = 48;
|
||
|
||
for (y=0;y<chunks;y++) ShrinkLoResData(fp,fp2);
|
||
}
|
||
else {
|
||
/* HGR and DHGR input file */
|
||
switch(bmpheight)
|
||
{
|
||
case 200:
|
||
case 400: chunks = 8; break;
|
||
case 384: chunks = 192; break;
|
||
case 480: chunks = 96; break;
|
||
}
|
||
|
||
for (y=0;y<chunks;y++) {
|
||
switch(bmpheight) {
|
||
case 200:
|
||
case 400: ShrinkLines25to24(fp,fp2);break;
|
||
case 480: ShrinkLines640x480(fp,fp2);break;
|
||
case 384: ShrinkLines560x384(fp,fp2);break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
fclose(fp2);
|
||
fclose(fp);
|
||
|
||
if((fp=fopen(scaledfile,"rb"))==NULL) {
|
||
printf("Error Opening %s for reading!\n",scaledfile);
|
||
if((fp=fopen(bmpfile,"rb"))==NULL) {
|
||
printf("Error Opening %s for reading!\n",bmpfile);
|
||
return fp;
|
||
}
|
||
}
|
||
/* read the header stuff into the appropriate structures */
|
||
fread((char *)&bfi.bfType[0],
|
||
sizeof(BITMAPFILEHEADER),1,fp);
|
||
fread((char *)&bmi.biSize,
|
||
sizeof(BITMAPINFOHEADER),1,fp);
|
||
return fp;
|
||
}
|
||
|
||
|
||
/* expand monochrome bmp lines to 24-bit bmp lines */
|
||
void ReformatMonoLine()
|
||
{
|
||
int i,j,k,packet;
|
||
uint8_t b = 0, w = 255;
|
||
|
||
if (bmpwidth == 280) packet = 35;
|
||
else packet = 70;
|
||
|
||
memcpy(&dibscanline1[0],&bmpscanline[0],packet);
|
||
|
||
if (reverse == 1) {
|
||
b = 255;
|
||
w = 0;
|
||
}
|
||
|
||
for(i=0,j=0;i<packet;i++)
|
||
{
|
||
|
||
for(k=0;k<8;k++)
|
||
{
|
||
if (dibscanline1[i]&msk[k]) {
|
||
bmpscanline[j] = bmpscanline[j+1] = bmpscanline[j+2] = w;
|
||
}
|
||
else {
|
||
bmpscanline[j] = bmpscanline[j+1] = bmpscanline[j+2] = b;
|
||
}
|
||
j+=3;
|
||
}
|
||
}
|
||
}
|
||
|
||
/* expand 16 color and 256 color bmp lines to 24-bit bmp lines */
|
||
void ReformatVGALine()
|
||
{
|
||
int16_t i, j, packet;
|
||
uint8_t ch;
|
||
|
||
memset(dibscanline1,0,1920);
|
||
if (bmi.biBitCount == 8) {
|
||
memcpy(&dibscanline1[0],&bmpscanline[0],bmpwidth);
|
||
}
|
||
else {
|
||
packet = bmpwidth /2;
|
||
if (bmpwidth%2 != 0) packet++;
|
||
for (i=0,j=0;i<packet;i++) {
|
||
ch = bmpscanline[i] >> 4;
|
||
dibscanline1[j] = ch; j++;
|
||
ch = bmpscanline[i] & 0xf;
|
||
dibscanline1[j] = ch; j++;
|
||
}
|
||
}
|
||
memset(&bmpscanline[0],0,1920);
|
||
for (i=0,j=0;i<bmpwidth;i++) {
|
||
ch = dibscanline1[i];
|
||
bmpscanline[j] = sbmp[ch].rgbBlue; j++;
|
||
bmpscanline[j] = sbmp[ch].rgbGreen; j++;
|
||
bmpscanline[j] = sbmp[ch].rgbRed; j++;
|
||
}
|
||
}
|
||
|
||
/* convert 16 color and 256 color bmps to 24 bit bmps */
|
||
/* convert Monochrome bmps to 24 bit bmps */
|
||
FILE *ReformatBMP(FILE *fp)
|
||
{
|
||
|
||
FILE *fp2;
|
||
int16_t status = SUCCESS;
|
||
uint16_t packet, outpacket,y;
|
||
|
||
if (bmi.biBitCount == 1) {
|
||
/* Mono HGR = 280 and Mono DHGR = 560 */
|
||
if (bmpwidth != 280 && bmpwidth != 560) status = INVALID;
|
||
if (bmpheight != 192) status = INVALID;
|
||
}
|
||
else {
|
||
/* HGR and DHGR size check */
|
||
/* LGR and DLGR sizes were checked previously in Convert() */
|
||
if (loresoutput == 0) {
|
||
if (bmpwidth > 280) {
|
||
status = INVALID;
|
||
switch(bmpwidth) {
|
||
case 640: if (bmpheight == 400 || bmpheight == 480) status = SUCCESS; break;
|
||
case 320: if (bmpheight == 200) status = SUCCESS; break;
|
||
case 560: if (bmpheight == 384) status = SUCCESS; break;
|
||
}
|
||
}
|
||
else {
|
||
if (bmpheight > 192) status = INVALID;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (status == INVALID) {
|
||
fclose(fp);
|
||
fp = NULL;
|
||
printf("%s is not a supported size!\n",bmpfile);
|
||
return fp;
|
||
}
|
||
|
||
if (bmi.biBitCount == 8)
|
||
fread((char *)&sbmp[0].rgbBlue, sizeof(RGBQUAD)*256,1,fp);
|
||
else if (bmi.biBitCount == 4)
|
||
fread((char *)&sbmp[0].rgbBlue, sizeof(RGBQUAD)*16,1,fp);
|
||
else if (bmi.biBitCount == 1)
|
||
fread((char *)&sbmp[0].rgbBlue, sizeof(RGBQUAD)*2,1,fp);
|
||
|
||
/* seek past extraneous info in header if any */
|
||
fseek(fp,bfi.bfOffBits,SEEK_SET);
|
||
|
||
/* align on 4 byte boundaries */
|
||
if (bmi.biBitCount == 1) {
|
||
if (bmpwidth == 280) packet = 36;
|
||
else packet = 72;
|
||
}
|
||
else if (bmi.biBitCount == 8) {
|
||
packet = bmpwidth;
|
||
}
|
||
else {
|
||
packet = bmpwidth / 2;
|
||
if (bmpwidth%2 != 0)packet++;
|
||
}
|
||
while ((packet % 4)!=0)packet++;
|
||
|
||
if((fp2=fopen(reformatfile,"wb"))==NULL) {
|
||
printf("Error Opening %s for writing!\n",reformatfile);
|
||
return fp;
|
||
}
|
||
if (bmi.biBitCount == 1) {
|
||
if (bmpwidth == 280) outpacket = WriteDIBHeader(fp2,bmpwidth,bmpheight);
|
||
else outpacket = WriteDIBHeader(fp2,bmpwidth,bmpheight*2);
|
||
}
|
||
else {
|
||
outpacket = WriteDIBHeader(fp2,bmpwidth,bmpheight);
|
||
}
|
||
if (outpacket < 1) {
|
||
fclose(fp2);
|
||
remove(reformatfile);
|
||
printf("Error writing header to %s!\n",reformatfile);
|
||
return fp;
|
||
}
|
||
|
||
for (y=0;y<bmpheight;y++) {
|
||
fread((char *)&bmpscanline[0],1,packet,fp);
|
||
if (bmi.biBitCount == 1) ReformatMonoLine();
|
||
else ReformatVGALine();
|
||
fwrite((char *)&bmpscanline[0],1,outpacket,fp2);
|
||
/* double lines for DHGR monochrome conversion */
|
||
/* single lines for HGR monochrome conversion */
|
||
if (bmi.biBitCount == 1 && bmpwidth == 560) fwrite((char *)&bmpscanline[0],1,outpacket,fp2);
|
||
}
|
||
fclose(fp2);
|
||
fclose(fp);
|
||
|
||
reformat = 1;
|
||
|
||
if((fp=fopen(reformatfile,"rb"))==NULL) {
|
||
printf("Error Opening %s for reading!\n",reformatfile);
|
||
if((fp=fopen(bmpfile,"rb"))==NULL) {
|
||
printf("Error Opening %s for reading!\n",bmpfile);
|
||
return fp;
|
||
}
|
||
}
|
||
/* read the header stuff into the appropriate structures */
|
||
fread((char *)&bfi.bfType[0],
|
||
sizeof(BITMAPFILEHEADER),1,fp);
|
||
fread((char *)&bmi.biSize,
|
||
sizeof(BITMAPINFOHEADER),1,fp);
|
||
return fp;
|
||
}
|
||
|
||
|
||
/* overlay using a 256 color BMP file in verbatim output resolution */
|
||
/* HGR and DHGR color overlay files are 140 x 192 */
|
||
/* HGR and DHGR monochrome are 280 x 192 and 560 x 192 respectively */
|
||
int16_t OpenMaskFile()
|
||
{
|
||
|
||
int16_t status = INVALID;
|
||
uint16_t i, width=0, height=0;
|
||
double dummy;
|
||
int c;
|
||
|
||
if (overlay == 0) return status;
|
||
|
||
overlay = 0;
|
||
fpmask = fopen(maskfile,"rb");
|
||
if (NULL == fpmask) {
|
||
printf("Error opening maskfile %s\n",maskfile);
|
||
return status;
|
||
}
|
||
|
||
for (;;) {
|
||
|
||
c = fread((char *)&maskbmp.bfi.bfType[0],sizeof(BMPHEADER),1,fpmask);
|
||
|
||
if (c!= 1) {
|
||
/* printf("header read returned %d\n",c); */
|
||
break;
|
||
}
|
||
|
||
if (maskbmp.bmi.biCompression==BI_RGB &&
|
||
maskbmp.bfi.bfType[0] == 'B' && maskbmp.bfi.bfType[1] == 'M' &&
|
||
maskbmp.bmi.biPlanes==1 && maskbmp.bmi.biBitCount == 8) {
|
||
width = (uint16_t) maskbmp.bmi.biWidth;
|
||
height = (uint16_t) maskbmp.bmi.biHeight;
|
||
}
|
||
|
||
/* this ensures that only full-screen output is masked */
|
||
/* it doesn't make sense to mix image fragment routines into here */
|
||
if (mono == 1) {
|
||
if (hgroutput == 0) {
|
||
if (width != 560 || height != 192) {
|
||
/* printf("width = %d, height = %d\n",width,height); */
|
||
puts("Mask file width must be 560 x 192");
|
||
break;
|
||
}
|
||
}
|
||
else {
|
||
if (width != 280 || height != 192) {
|
||
/* printf("width = %d, height = %d\n",width,height); */
|
||
puts("Mask file width must be 280 x 192");
|
||
break;
|
||
}
|
||
}
|
||
|
||
}
|
||
else {
|
||
if (width != 140 || height != 192) {
|
||
/* printf("width = %d, height = %d\n",width,height); */
|
||
puts("Mask file width must be 140 x 192");
|
||
break;
|
||
}
|
||
}
|
||
|
||
fread((char *)&maskpalette[0].rgbBlue, sizeof(RGBQUAD)*256,1,fpmask);
|
||
|
||
|
||
for (i=0;i<256;i++) {
|
||
if (mono == 1) {
|
||
/* build a remap array for monochrome output */
|
||
if (maskpalette[i].rgbRed == 255 && maskpalette[i].rgbGreen == 255 &&
|
||
maskpalette[i].rgbBlue == 255) {
|
||
remap[i] = 15;
|
||
}
|
||
else if (maskpalette[i].rgbRed == 0 && maskpalette[i].rgbGreen == 0 &&
|
||
maskpalette[i].rgbBlue == 0) {
|
||
remap[i] = 0;
|
||
}
|
||
else {
|
||
/* anything else maps to color 1 for mono */
|
||
remap[i] = 1;
|
||
}
|
||
|
||
}
|
||
else {
|
||
/* build a remap array for color output */
|
||
remap[i] = GetMedColor(maskpalette[i].rgbRed,
|
||
maskpalette[i].rgbGreen,
|
||
maskpalette[i].rgbBlue,&dummy);
|
||
}
|
||
}
|
||
fseek(fpmask,bfi.bfOffBits,SEEK_SET);
|
||
status = SUCCESS;
|
||
overlay = 1;
|
||
break;
|
||
}
|
||
|
||
if (status == INVALID){
|
||
/* puts("Failed!"); */
|
||
fclose(fpmask);
|
||
fpmask = NULL;
|
||
if (quietmode == 1)printf("Error loading %s\n",maskfile);
|
||
}
|
||
else {
|
||
if (quietmode == 1)printf("Loaded mask %s\n",maskfile);
|
||
}
|
||
|
||
return status;
|
||
}
|
||
|
||
/* LGR and DLGR only */
|
||
int16_t ValidLoResSizeRange()
|
||
{
|
||
int16_t status = INVALID;
|
||
|
||
/* monochrome input files are not accepted for LGR or DLGR conversion */
|
||
if (bmi.biBitCount != 1) {
|
||
|
||
/* http://en.wikipedia.org/wiki/Windowbox_(film) - cropped (clipped) images */
|
||
/* restricted to a reasonable number of sizes that make sense to me */
|
||
/* additional scaling can be done outside of here */
|
||
/* for lores verbatim fullscreen output use 40 x 48 input files */
|
||
/* for double lores verbatim fullscreen output use 80 x 48 input files */
|
||
/* for mixed text and graphics mode output of the above is automatic with
|
||
input files of 40 lines, and by default clips the bottom 8 lines with
|
||
input files of 48 lines... and optionally the windowbox can be shifted
|
||
downwards by 0-8 lines when justify option JL is used.
|
||
|
||
larger sizes behave similarly. scaling of larger sizes uses pixel merge
|
||
to combine pixels and scanlines so detail loss will occur. sizes like
|
||
88 x 52, 176 x 104 and 320 x 200 also provide optional windowbox shifting for
|
||
fullscreen output as well as for mixed text and graphics output. these
|
||
over-scanned sizes are centered on the display by default. over-scanned sizes
|
||
use the same nominal resolution as pre-scaled sizes,
|
||
|
||
640 x 480 (fullscreen) and 640 x 400 (mixed text and graphics) is the only
|
||
"Classic Size" supported for LGR and DLGR
|
||
|
||
during processing, in order to lever the same routines used by HGR and DHGR,
|
||
half-scaling is provided for LGR as a "second level" of scaling. all output
|
||
is restricted to one of 4 sizes:
|
||
|
||
LGR - 40 x 40 and 40 x 48
|
||
DLGR - 80 x 40 and 80 x 48
|
||
|
||
LGR and DLGR image fragments are not supported for this version of Bmp2DHR
|
||
|
||
*/
|
||
|
||
switch(bmpwidth) {
|
||
|
||
case 40: lores = 1; /* verbatim 1:1 lgr only - nominal size 40 x 48 */
|
||
case 80:
|
||
/* verbatim 1:1 for dlgr - nominal size 80 x 48 */
|
||
/* 2:1 scaled for lgr */
|
||
if (bmpheight == 40 || bmpheight == 48) status = SUCCESS;
|
||
else break;
|
||
jxoffset = 0; /* windowbox in vertical axis only */
|
||
if (bmpheight == 40) {
|
||
/* mixed text and graphics */
|
||
/* 40 x 40 and 80 x 40 - windowbox not required */
|
||
appletop = 1;
|
||
justify = jyoffset = 0;
|
||
break;
|
||
}
|
||
if (appletop == 1) {
|
||
/* mixed text and graphics */
|
||
/* 40 x 48 and 80 x 48 - windowbox required */
|
||
/* top justified if not otherwise specified */
|
||
if (justify == 1 && (jyoffset > -1 || jyoffset < 9)) {
|
||
jyoffset = 8 - jyoffset;
|
||
break;
|
||
}
|
||
jyoffset = 8;
|
||
justify = 1;
|
||
|
||
}
|
||
else {
|
||
/* fullscreen */
|
||
/* 40 x 48 and 80 x 48 */
|
||
justify = jyoffset = 0;
|
||
|
||
}
|
||
break;
|
||
|
||
case 88: /* the next two input widths (88 and 176) are processed as over-scanned images */
|
||
/* these originate from clipped BMP format "MiniPix" conversions */
|
||
/* saved in Windows Paint as "old" and "new" printshop "pastes" from ClipShop in
|
||
small-copy (single-scaled) or regular copy (double-scaled) format. */
|
||
|
||
if (bmpheight != 52) break;
|
||
status = SUCCESS; /* verbatim for dlgr - nominal size 80 x 48 */
|
||
if (jxoffset < 0 || jxoffset > 8) {
|
||
jxoffset = 4; /* centre */
|
||
}
|
||
if (appletop == 1) { /* mixed text and graphics - dlgr windowbox 80 x 40 */
|
||
if (justify == 1 && (jyoffset > -1 && jyoffset < 13)) jyoffset = 12 - jyoffset;
|
||
else jyoffset = 10;
|
||
justify = 1;
|
||
break;
|
||
}
|
||
justify = 1;
|
||
if (jyoffset < 0 || jyoffset > 4) {
|
||
jyoffset = 2; /* centre */
|
||
}
|
||
break;
|
||
case 176: if (bmpheight != 104) break;
|
||
status = SUCCESS; /* dlgr double-scaled - nominal size 160 x 96 */
|
||
if (jxoffset < 0 || jxoffset > 16) {
|
||
jxoffset = 8; /* centre */
|
||
}
|
||
if (appletop == 1) { /* mixed text and graphics - dlgr windowbox 160 x 80 */
|
||
if (justify == 1 && (jyoffset > -1 && jyoffset < 25)) jyoffset = 24 - jyoffset;
|
||
else jyoffset = 20;
|
||
justify = 1;
|
||
break;
|
||
}
|
||
justify = 1;
|
||
if (jyoffset < 0 || jyoffset > 8) {
|
||
jyoffset = 4; /* centre */
|
||
}
|
||
break;
|
||
case 160: /* nominal size 160 x 96 */
|
||
/* 2:2 scaled for dlgr, 4:2 scaled for lgr */
|
||
if (bmpheight == 80 || bmpheight == 96) status = SUCCESS;
|
||
else break;
|
||
jxoffset = 0;
|
||
if (bmpheight == 80) {
|
||
/* 160 x 80 - mixed text and graphics */
|
||
appletop = 1;
|
||
justify = jyoffset = 0;
|
||
break;
|
||
}
|
||
if (appletop == 1) {
|
||
/* mixed text and graphics */
|
||
/* 160 x 96 - windowbox required */
|
||
/* top justified if not otherwise specified */
|
||
if (justify == 1 && (jyoffset > -1 || jyoffset < 17)) {
|
||
jyoffset = 16 - jyoffset;
|
||
break;
|
||
}
|
||
jyoffset = 16;
|
||
justify = 1;
|
||
|
||
}
|
||
else {
|
||
/* fullscreen */
|
||
/* 160 x 96 */
|
||
justify = jyoffset = 0;
|
||
|
||
}
|
||
break;
|
||
case 320: /* nominal size 320 x 192 */
|
||
/* 4:4 scaled for dlgr, 8:4 scaled for lgr */
|
||
if (bmpheight == 160 || bmpheight == 192 || bmpheight == 200) {
|
||
status = SUCCESS;
|
||
jxoffset = 0; /* vertical scaling of mixed text and graphics only */
|
||
if (bmpheight == 160) {
|
||
appletop = 1;
|
||
justify = jyoffset = 0;
|
||
break;
|
||
}
|
||
if (bmpheight == 192) {
|
||
if (appletop == 1) {
|
||
if (justify == 1 && (jyoffset > -1 && jyoffset < 33)) jyoffset = 32 - jyoffset;
|
||
else jyoffset = 32;
|
||
justify = 1;
|
||
break;
|
||
}
|
||
justify = jyoffset = 0;
|
||
break;
|
||
}
|
||
/* 320 x 200 */
|
||
/* centre in frame by default */
|
||
if (appletop == 1) {
|
||
if (justify == 1 && (jyoffset > -1 && jyoffset < 41)) jyoffset = 40 - jyoffset;
|
||
else jyoffset = 36;
|
||
justify = 1;
|
||
break;
|
||
}
|
||
if (justify == 1 && (jyoffset > -1 && jyoffset < 9)) jyoffset = 8 - jyoffset;
|
||
else jyoffset = 4;
|
||
justify = 1;
|
||
}
|
||
break;
|
||
case 560: /* "Classic" full-screen conversion of pre-scaled 560 x 384 input */
|
||
/* "Classic" mixed text and graphics screen conversion of pre-scaled
|
||
560 x 384 full-screen or 560 x 320 cropped input */
|
||
/* 7:8 scaled for dlgr, 14:8 scaled for lgr */
|
||
if (bmpheight == 320 || bmpheight == 384) status = SUCCESS;
|
||
else break;
|
||
jxoffset = 0;
|
||
if (bmpheight == 320) {
|
||
/* mixed text and graphics */
|
||
appletop = 1;
|
||
justify = jyoffset = 0;
|
||
break;
|
||
}
|
||
if (appletop == 1) {
|
||
/* mixed text and graphics */
|
||
if (justify == 1 && (jyoffset > -1 && jyoffset < 65)) jyoffset = 64 - jyoffset;
|
||
else jyoffset = 64;
|
||
justify = 1;
|
||
}
|
||
else {
|
||
/* fullscreen */
|
||
justify = jyoffset = 0;
|
||
}
|
||
break;
|
||
case 640: /* "Classic" full-screen conversion of 640 x 480 square pixeled input */
|
||
/* "Classic" mixed text and graphics screen conversion of square pixeled
|
||
640 x 480 full-screen or 640 x 400 cropped input */
|
||
/* 8:10 scaled for dlgr, 16:10 scaled for dlgr */
|
||
if (bmpheight == 480 || bmpheight == 400) status = SUCCESS;
|
||
else break;
|
||
jxoffset = 0;
|
||
if (bmpheight == 400) {
|
||
/* mixed text and graphics */
|
||
appletop = 1;
|
||
justify = jyoffset = 0;
|
||
break;
|
||
}
|
||
if (appletop == 1) {
|
||
/* mixed text and graphics */
|
||
if (justify == 1 && (jyoffset > -1 && jyoffset < 81)) jyoffset = 80 - jyoffset;
|
||
else jyoffset = 64;
|
||
justify = 1;
|
||
}
|
||
else {
|
||
/* fullscreen */
|
||
justify = jyoffset = 0;
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
|
||
return status;
|
||
}
|
||
|
||
/* for color DHGR */
|
||
/* 1. reads a 24 bit BMP file in the range from 1 x 1 to 280 x 192 */
|
||
/* 2. writes a DHGR screen image or optionally a DHGR image fragment */
|
||
/* 3. also creates an optional preview file...
|
||
when preview is on... also leaves an optional error-diffused dib file
|
||
in place if error diffusion is also turned-on */
|
||
/* Etcetera */
|
||
int16_t Convert()
|
||
{
|
||
|
||
FILE *fp, *fpdib, *fpreview;
|
||
int16_t status = INVALID, resize = 0;
|
||
uint16_t x,x1,x2,y,yoff,i,packet, outpacket, width, dwidth, red, green, blue;
|
||
uint8_t r,g,b,drawcolor;
|
||
uint32_t pos, prepos;
|
||
|
||
/* if using a mask file, open it now */
|
||
/* leave it open throughout the conversion session */
|
||
/* it will be closed in main before exiting */
|
||
if (overlay == 1)OpenMaskFile();
|
||
|
||
if((fp=fopen(bmpfile,"rb"))==NULL) {
|
||
printf("Error Opening %s for reading!\n",bmpfile);
|
||
return status;
|
||
}
|
||
/* read the header stuff into the appropriate structures */
|
||
fread((char *)&bfi.bfType[0],
|
||
sizeof(BITMAPFILEHEADER),1,fp);
|
||
fread((char *)&bmi.biSize,
|
||
sizeof(BITMAPINFOHEADER),1,fp);
|
||
|
||
/* reformat to 24 bit */
|
||
if (bmi.biCompression==BI_RGB &&
|
||
bfi.bfType[0] == 'B' && bfi.bfType[1] == 'M' && bmi.biPlanes==1) {
|
||
|
||
bmpwidth = (uint16_t) bmi.biWidth;
|
||
bmpheight = (uint16_t) bmi.biHeight;
|
||
|
||
if (loresoutput == 1) {
|
||
/* LGR and DLGR */
|
||
status = ValidLoResSizeRange();
|
||
if (status == INVALID) {
|
||
fclose(fp);
|
||
printf("%s is in the wrong format!\n",bmpfile);
|
||
return status;
|
||
}
|
||
}
|
||
|
||
if (bmi.biBitCount == 8 || bmi.biBitCount == 4) {
|
||
fp = ReformatBMP(fp);
|
||
if (fp == NULL) return INVALID;
|
||
}
|
||
}
|
||
|
||
if (bmi.biCompression==BI_RGB &&
|
||
bfi.bfType[0] == 'B' && bfi.bfType[1] == 'M' &&
|
||
bmi.biPlanes==1 && bmi.biBitCount == 24) {
|
||
|
||
bmpwidth = (uint16_t) bmi.biWidth;
|
||
bmpheight = (uint16_t) bmi.biHeight;
|
||
|
||
if (loresoutput == 0) {
|
||
/* color HGR and DHGR */
|
||
/* resize some classic screen sizes */
|
||
if (bmpwidth == 320 && bmpheight == 200)
|
||
resize = 1;
|
||
else if (bmpwidth == 640 && bmpheight == 400)
|
||
resize = 2;
|
||
else if (bmpwidth == 640 && bmpheight == 480)
|
||
resize = 3;
|
||
else if (bmpwidth == 560 && bmpheight == 384)
|
||
resize = 4;
|
||
}
|
||
else {
|
||
/* color LGR and DLGR */
|
||
/* all lo-res and double lo-res input is resized to one of 2 -
|
||
sizes of input file:
|
||
|
||
80 x 48 or 80 x 40
|
||
|
||
the input file is then processed as a "small" double hi-res
|
||
image. since the color palette is exactly the same, the same
|
||
rendering options are available.
|
||
|
||
after processing the double hi-res output buffer is converted to
|
||
lo-res or double lo-res formatting and saved as Apple II native
|
||
LGR or DLGR output.
|
||
|
||
*/
|
||
resize = 5;
|
||
}
|
||
|
||
if (resize != 0) {
|
||
memset(&bmpscanline[0],0,1920);
|
||
memset(&dibscanline1[0],0,1920);
|
||
memset(&dibscanline2[0],0,1920);
|
||
memset(&dibscanline3[0],0,1920);
|
||
memset(&dibscanline4[0],0,1920);
|
||
fp = ResizeBMP(fp,resize);
|
||
if (fp == NULL) return INVALID;
|
||
bmpwidth = (uint16_t) bmi.biWidth;
|
||
bmpheight = (uint16_t) bmi.biHeight;
|
||
}
|
||
|
||
if (loresoutput == 0) {
|
||
/* HGR and DHGR output */
|
||
if (scale == 0) {
|
||
if (bmpwidth > 140) scale = 1;
|
||
}
|
||
|
||
if (scale == 1) {
|
||
width = bmpwidth;
|
||
dwidth = (bmpwidth+1)/2;
|
||
if (bmpwidth > 0 && bmpwidth < 281 &&
|
||
bmpheight > 0 && bmpheight < 193) status = SUCCESS;
|
||
}
|
||
else {
|
||
width = bmpwidth * 2;
|
||
dwidth = bmpwidth;
|
||
if (bmpwidth > 0 && bmpwidth < 141 &&
|
||
bmpheight > 0 && bmpheight < 193) status = SUCCESS;
|
||
|
||
}
|
||
}
|
||
else {
|
||
/* LGR and DLGR */
|
||
width = bmpwidth;
|
||
if (lores == 1) {
|
||
scale = 1;
|
||
dwidth = 40;
|
||
}
|
||
else {
|
||
scale = 0;
|
||
dwidth = 80;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (status == INVALID) {
|
||
fclose(fp);
|
||
printf("%s is in the wrong format!\n",bmpfile);
|
||
return status;
|
||
}
|
||
|
||
|
||
packet = bmpwidth * 3;
|
||
/* BMP scanlines are padded to a multiple of 4 bytes (DWORD) */
|
||
while ((packet % 4) != 0) packet++;
|
||
|
||
/* error diffusion option */
|
||
if (diffuse != 0) {
|
||
/* clear buffers */
|
||
memset(&bmpscanline[0],0,960);
|
||
memset(&dibscanline1[0],0,960);
|
||
memset(&dibscanline2[0],0,960);
|
||
fp = ReadDIBFile(fp, packet);
|
||
if (fp == NULL) return INVALID;
|
||
}
|
||
|
||
if (preview!=0) {
|
||
fpreview = fopen(previewfile,"wb+");
|
||
|
||
if (fpreview != NULL) {
|
||
outpacket = WriteDIBHeader(fpreview,width,bmpheight);
|
||
if (outpacket == 0) {
|
||
fclose(fpreview);
|
||
remove(previewfile);
|
||
printf("Error writing header to %s!\n",previewfile);
|
||
preview = 0;
|
||
}
|
||
else {
|
||
/* pad the preview file */
|
||
memset(&dibscanline1[0],0,960);
|
||
for (y=0;y<bmpheight;y++) fwrite((char *)&dibscanline1[0],1,outpacket,fpreview);
|
||
/* set the seek distance to scanline 0 in the preview file */
|
||
prepos = (uint32_t) (bmpheight - 1);
|
||
prepos *= outpacket;
|
||
prepos += mybmp.bfi.bfOffBits;
|
||
}
|
||
|
||
}
|
||
else {
|
||
printf("Error opening %s for writing!\n",previewfile);
|
||
preview = 0;
|
||
}
|
||
}
|
||
|
||
|
||
/* read BMP from top scanline to bottom scanline */
|
||
pos = (uint32_t) (bmpheight - 1);
|
||
pos *= packet;
|
||
pos += bfi.bfOffBits;
|
||
|
||
/* clear buffers */
|
||
dhrclear();
|
||
memset(&bmpscanline[0],0,960);
|
||
memset(&previewline[0],0,960);
|
||
|
||
if (dither != 0) {
|
||
/* sizeof(int16_t) * 320 */
|
||
memset(&redDither[0],0,640);
|
||
memset(&greenDither[0],0,640);
|
||
memset(&blueDither[0],0,640);
|
||
memset(&redSeed[0],0,640);
|
||
memset(&greenSeed[0],0,640);
|
||
memset(&blueSeed[0],0,640);
|
||
memset(&redSeed2[0],0,640);
|
||
memset(&greenSeed2[0],0,640);
|
||
memset(&blueSeed2[0],0,640);
|
||
}
|
||
|
||
for (y=0;y<bmpheight;y++,pos-=packet) {
|
||
fseek(fp,pos,SEEK_SET);
|
||
fread((char *)&bmpscanline[0],1,packet,fp);
|
||
|
||
if (overlay == 1)ReadMaskLine(y);
|
||
|
||
if (scale == 1) {
|
||
for (x = 0,i = 0, x1=0; x < bmpwidth; x++) {
|
||
/* get even pixel values */
|
||
b = bmpscanline[i]; i++;
|
||
g = bmpscanline[i]; i++;
|
||
r = bmpscanline[i]; i++;
|
||
x++;
|
||
|
||
/* get odd pixel values */
|
||
if (x < bmpwidth) {
|
||
if (merge == 0) {
|
||
blue = (uint16_t)b;
|
||
green = (uint16_t)g;
|
||
red = (uint16_t)r;
|
||
i+=3;
|
||
}
|
||
else {
|
||
blue = (uint16_t)bmpscanline[i]; i++;
|
||
green = (uint16_t)bmpscanline[i]; i++;
|
||
red = (uint16_t)bmpscanline[i]; i++;
|
||
}
|
||
|
||
}
|
||
else {
|
||
/* if no odd pixel double-plot the last pixel */
|
||
if (merge == 0) {
|
||
blue = (uint16_t)b;
|
||
green = (uint16_t)g;
|
||
red = (uint16_t)r;
|
||
}
|
||
else {
|
||
/* merge with background color
|
||
on some fragments the background color might already be padded-out
|
||
*/
|
||
blue = (uint16_t)rgbArray[backgroundcolor][2];
|
||
green = (uint16_t)rgbArray[backgroundcolor][1];
|
||
red = (uint16_t)rgbArray[backgroundcolor][0];
|
||
}
|
||
}
|
||
|
||
blue += b;
|
||
green += g;
|
||
red += r;
|
||
|
||
b = (uint8_t) (blue/2);
|
||
g = (uint8_t) (green/2);
|
||
r = (uint8_t) (red/2);
|
||
|
||
if (dither == 0) {
|
||
|
||
maskpixel = 0;
|
||
if (overlay == 1) {
|
||
overcolor = maskline[x/2];
|
||
/* clearcolor is the transparent color for the mask */
|
||
/* if the overlay color is some other color then the pixel is overlaid
|
||
with the mask color */
|
||
if (overcolor != clearcolor) maskpixel = 1;
|
||
}
|
||
if (maskpixel == 1) {
|
||
drawcolor = (uint8_t)overcolor;
|
||
}
|
||
else {
|
||
/* get nearest color index from currently selected conversion palette */
|
||
drawcolor = GetDrawColor(r,g,b,x/2,y);
|
||
}
|
||
|
||
/* plot to DHGR buffer */
|
||
dhrplot(x/2,y,drawcolor);
|
||
if (preview == 1) {
|
||
/* plot preview using currently selected preview palette */
|
||
previewline[x1] = previewline[x1+3] = rgbPreview[drawcolor][BLUE]; x1++;
|
||
previewline[x1] = previewline[x1+3] = rgbPreview[drawcolor][GREEN]; x1++;
|
||
previewline[x1] = previewline[x1+3] = rgbPreview[drawcolor][RED]; x1+=4;
|
||
}
|
||
}
|
||
else {
|
||
/* Floyd-Steinberg Etc. dithering */
|
||
/* values are already seeded from previous line(s) */
|
||
x2 = x/2;
|
||
|
||
AdjustShortPixel(1,(int16_t *)&redDither[x2],(int16_t)r);
|
||
AdjustShortPixel(1,(int16_t *)&greenDither[x2],(int16_t)g);
|
||
AdjustShortPixel(1,(int16_t *)&blueDither[x2],(int16_t)b);
|
||
}
|
||
}
|
||
}
|
||
else {
|
||
/* merge has no meaning unless we are scaling */
|
||
for (x = 0,i = 0,x1=0; x < bmpwidth; x++) {
|
||
b = bmpscanline[i]; i++;
|
||
g = bmpscanline[i]; i++;
|
||
r = bmpscanline[i]; i++;
|
||
|
||
if (dither != 0) {
|
||
/* Floyd-Steinberg Etc. dithering */
|
||
/* values are already seeded from previous line(s) */
|
||
AdjustShortPixel(1,(int16_t *)&redDither[x],(int16_t)r);
|
||
AdjustShortPixel(1,(int16_t *)&greenDither[x],(int16_t)g);
|
||
AdjustShortPixel(1,(int16_t *)&blueDither[x],(int16_t)b);
|
||
}
|
||
else {
|
||
maskpixel = 0;
|
||
if (overlay == 1) {
|
||
overcolor = maskline[x];
|
||
/* clearcolor is the transparent color for the mask */
|
||
/* if the overlay color is some other color then the pixel is overlaid
|
||
with the mask color */
|
||
if (overcolor != clearcolor) maskpixel = 1;
|
||
}
|
||
if (maskpixel == 1) {
|
||
drawcolor = (uint8_t)overcolor;
|
||
}
|
||
else {
|
||
/* get nearest color index from currently selected conversion palette */
|
||
drawcolor = GetDrawColor(r,g,b,x,y);
|
||
}
|
||
/* plot to DHGR buffer */
|
||
dhrplot(x,y,drawcolor);
|
||
if (preview == 1) {
|
||
/* plot preview using currently selected preview palette */
|
||
previewline[x1] = previewline[x1+3] = rgbPreview[drawcolor][BLUE]; x1++;
|
||
previewline[x1] = previewline[x1+3] = rgbPreview[drawcolor][GREEN]; x1++;
|
||
previewline[x1] = previewline[x1+3] = rgbPreview[drawcolor][RED];
|
||
if (loresoutput == 1 && lores == 0) x1++;
|
||
else x1+=4;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
if (dither != 0) {
|
||
/* Floyd-Steinberg dithering */
|
||
FloydSteinberg(y,dwidth);
|
||
/* seed next line - promote nearest forward array to
|
||
current line */
|
||
memcpy(&redDither[0],&redSeed[0],640);
|
||
memcpy(&greenDither[0],&greenSeed[0],640);
|
||
memcpy(&blueDither[0],&blueSeed[0],640);
|
||
|
||
/* seed first seed - promote furthest forward array
|
||
to nearest forward array */
|
||
memcpy(&redSeed[0],&redSeed2[0],640);
|
||
memcpy(&greenSeed[0],&greenSeed2[0],640);
|
||
memcpy(&blueSeed[0],&blueSeed2[0],640);
|
||
|
||
/* clear last seed - furthest forward array */
|
||
/* this is not used in all the error diffusion dithers */
|
||
/* - but dithers like atkinson use 2 foward arrays */
|
||
/* - in dithers that use only one forward array this does no harm */
|
||
/* somewhat brute force but simple code */
|
||
memset(&redSeed2[0],0,640);
|
||
memset(&greenSeed2[0],0,640);
|
||
memset(&blueSeed2[0],0,640);
|
||
}
|
||
|
||
if (preview != 0) {
|
||
/* write the preview line to the preview file */
|
||
fseek(fpreview,prepos,SEEK_SET);
|
||
fwrite((char *)&previewline[0],1,outpacket,fpreview);
|
||
prepos -= outpacket;
|
||
}
|
||
|
||
}
|
||
|
||
fclose(fp);
|
||
|
||
if (preview != 0) {
|
||
fclose(fpreview);
|
||
if (quietmode != 0) printf("Preview file %s created!\n",previewfile);
|
||
}
|
||
|
||
if (debug == 0) {
|
||
if (diffuse != 0) remove(dibfile);
|
||
if (resize != 0) remove(scaledfile);
|
||
if (reformat != 0) remove(reformatfile);
|
||
}
|
||
|
||
if (savedhr() != SUCCESS) return INVALID;
|
||
if (savesprite() != SUCCESS) return INVALID;
|
||
|
||
return SUCCESS;
|
||
|
||
}
|
||
|
||
int16_t ConvertMono()
|
||
{
|
||
|
||
FILE *fp, *fpreview;
|
||
int16_t status = INVALID;
|
||
uint16_t x,y,i,packet, outpacket, red, green, blue, verbatim;
|
||
uint32_t pos, prepos;
|
||
|
||
if((fp=fopen(bmpfile,"rb"))==NULL) {
|
||
printf("Error Opening %s for reading!\n",bmpfile);
|
||
return status;
|
||
}
|
||
/* read the header stuff into the appropriate structures */
|
||
fread((char *)&bfi.bfType[0],
|
||
sizeof(BITMAPFILEHEADER),1,fp);
|
||
fread((char *)&bmi.biSize,
|
||
sizeof(BITMAPINFOHEADER),1,fp);
|
||
|
||
bmpwidth = (uint16_t) bmi.biWidth;
|
||
bmpheight = (uint16_t) bmi.biHeight;
|
||
|
||
/* monochrome verbatim DHGR conversion */
|
||
if (bmpwidth == 560 && bmpheight == 192 && bmi.biBitCount == 1) {
|
||
verbatim = 1;
|
||
hgroutput = 0;
|
||
}
|
||
/* color to dithered DHGR monochrome conversion */
|
||
else if (bmpwidth == 560 && bmpheight == 384 && bmi.biBitCount != 1) {
|
||
verbatim = 2;
|
||
hgroutput = 0;
|
||
}
|
||
/* monochrome verbatim HGR conversion */
|
||
else if (bmpwidth == 280 && bmpheight == 192 && bmi.biBitCount == 1) {
|
||
verbatim = hgroutput = 1;
|
||
|
||
}
|
||
/* color to dithered HGR monochrome conversion */
|
||
else if (bmpwidth == 280 && bmpheight == 192 && bmi.biBitCount != 1) {
|
||
verbatim = hgroutput = 1;
|
||
}
|
||
else {
|
||
fclose(fp);
|
||
puts("Invalid size for Monochrome conversion!");
|
||
return status;
|
||
}
|
||
|
||
|
||
/* reformat to 24 bit */
|
||
if (bmi.biCompression==BI_RGB &&
|
||
bfi.bfType[0] == 'B' && bfi.bfType[1] == 'M' && bmi.biPlanes==1 &&
|
||
((bmi.biBitCount == 8) || (bmi.biBitCount == 4) || (bmi.biBitCount == 1))) {
|
||
fp = ReformatBMP(fp);
|
||
if (fp == NULL) return INVALID;
|
||
}
|
||
|
||
if (bmi.biCompression==BI_RGB &&
|
||
bfi.bfType[0] == 'B' && bfi.bfType[1] == 'M' &&
|
||
bmi.biPlanes==1 && bmi.biBitCount == 24) {
|
||
|
||
bmpwidth = (uint16_t) bmi.biWidth;
|
||
bmpheight = (uint16_t) bmi.biHeight;
|
||
|
||
status = SUCCESS;
|
||
}
|
||
|
||
if (status == INVALID) {
|
||
fclose(fp);
|
||
printf("%s is in the wrong format!\n",bmpfile);
|
||
return status;
|
||
}
|
||
|
||
/* if using a mask file, open it now */
|
||
/* leave it open throughout the conversion session */
|
||
/* it will be closed in main before exiting */
|
||
if (overlay == 1)OpenMaskFile();
|
||
|
||
packet = bmpwidth * 3;
|
||
/* BMP scanlines are padded to a multiple of 4 bytes (DWORD) */
|
||
while ((packet % 4) != 0) packet++;
|
||
|
||
if (preview!=0) {
|
||
fpreview = fopen(previewfile,"wb+");
|
||
|
||
if (fpreview != NULL) {
|
||
outpacket = WriteDIBHeader(fpreview,bmpwidth,bmpheight);
|
||
if (outpacket == 0) {
|
||
fclose(fpreview);
|
||
remove(previewfile);
|
||
printf("Error writing header to %s!\n",previewfile);
|
||
preview = 0;
|
||
}
|
||
else {
|
||
/* pad the preview file */
|
||
memset(&dibscanline1[0],0,960);
|
||
for (y=0;y<bmpheight;y++) fwrite((char *)&dibscanline1[0],1,outpacket,fpreview);
|
||
/* set the seek distance to scanline 0 in the preview file */
|
||
prepos = (uint32_t) (bmpheight - 1);
|
||
prepos *= outpacket;
|
||
prepos += mybmp.bfi.bfOffBits;
|
||
}
|
||
|
||
}
|
||
else {
|
||
printf("Error opening %s for writing!\n",previewfile);
|
||
preview = 0;
|
||
}
|
||
}
|
||
|
||
|
||
/* read BMP from top scanline to bottom scanline */
|
||
pos = (uint32_t) (bmpheight - 1);
|
||
pos *= packet;
|
||
pos += bfi.bfOffBits;
|
||
|
||
/* clear buffers */
|
||
memset(dhrbuf,0,16384);
|
||
memset(&bmpscanline[0],0,1920);
|
||
memset(&previewline[0],0,1920);
|
||
|
||
/* sizeof(int16_t) * 640 */
|
||
memset(&redDither[0],0,1280);
|
||
memset(&greenDither[0],0,1280);
|
||
memset(&blueDither[0],0,1280);
|
||
memset(&redSeed[0],0,1280);
|
||
memset(&greenSeed[0],0,1280);
|
||
memset(&blueSeed[0],0,1280);
|
||
memset(&redSeed2[0],0,1280);
|
||
memset(&greenSeed2[0],0,1280);
|
||
memset(&blueSeed2[0],0,1280);
|
||
|
||
|
||
for (y=0;y<192;y++,pos-=packet) {
|
||
fseek(fp,pos,SEEK_SET);
|
||
fread((char *)&bmpscanline[0],1,packet,fp);
|
||
if (hgroutput != 1) {
|
||
pos-=packet;
|
||
fread((char *)&bmpscanline2[0],1,packet,fp);
|
||
}
|
||
|
||
for (x = 0,i = 0; x < bmpwidth; x++, i+=3) {
|
||
|
||
blue = (uint16_t)bmpscanline[i];
|
||
green = (uint16_t)bmpscanline[i+1];
|
||
red = (uint16_t)bmpscanline[i+2];
|
||
|
||
if (verbatim == 2) {
|
||
blue += bmpscanline2[i];
|
||
green += bmpscanline2[i+1];
|
||
red += bmpscanline2[i+2];
|
||
}
|
||
/* Floyd-Steinberg Etc. dithering */
|
||
/* values are already seeded from previous line(s) */
|
||
AdjustShortPixel(1,(int16_t *)&redDither[x],(int16_t)red/verbatim);
|
||
AdjustShortPixel(1,(int16_t *)&greenDither[x],(int16_t)green/verbatim);
|
||
AdjustShortPixel(1,(int16_t *)&blueDither[x],(int16_t)blue/verbatim);
|
||
}
|
||
|
||
/* Floyd-Steinberg dithering */
|
||
FloydSteinberg(y,bmpwidth);
|
||
/* seed next line - promote nearest forward array to
|
||
current line */
|
||
memcpy(&redDither[0],&redSeed[0],1280);
|
||
memcpy(&greenDither[0],&greenSeed[0],1280);
|
||
memcpy(&blueDither[0],&blueSeed[0],1280);
|
||
|
||
/* seed first seed - promote furthest forward array
|
||
to nearest forward array */
|
||
memcpy(&redSeed[0],&redSeed2[0],1280);
|
||
memcpy(&greenSeed[0],&greenSeed2[0],1280);
|
||
memcpy(&blueSeed[0],&blueSeed2[0],1280);
|
||
|
||
/* clear last seed - furthest forward array */
|
||
/* this is not used in all the error diffusion dithers */
|
||
/* - but dithers like atkinson use 2 forward arrays */
|
||
/* - in dithers that use only one forward array this does no harm */
|
||
/* somewhat brute force but simple code */
|
||
memset(&redSeed2[0],0,1280);
|
||
memset(&greenSeed2[0],0,1280);
|
||
memset(&blueSeed2[0],0,1280);
|
||
|
||
|
||
if (preview != 0) {
|
||
/* write the preview line to the preview file */
|
||
fseek(fpreview,prepos,SEEK_SET);
|
||
fwrite((char *)&previewline[0],1,outpacket,fpreview);
|
||
prepos -= outpacket;
|
||
|
||
if (hgroutput != 1) {
|
||
fseek(fpreview,prepos,SEEK_SET);
|
||
fwrite((char *)&previewline[0],1,outpacket,fpreview);
|
||
prepos -= outpacket;
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
fclose(fp);
|
||
|
||
if (preview != 0) {
|
||
fclose(fpreview);
|
||
if (quietmode != 0) printf("Preview file %s created!\n",previewfile);
|
||
}
|
||
|
||
if (debug == 0) {
|
||
if (reformat != 0) remove(reformatfile);
|
||
}
|
||
|
||
if (savedhr() != SUCCESS) return INVALID;
|
||
return SUCCESS;
|
||
|
||
}
|
||
|
||
|
||
void pusage(void)
|
||
{
|
||
int16_t i;
|
||
|
||
puts(title);
|
||
for (i=0;usage[i] != NULL;i++) puts(usage[i]);
|
||
}
|
||
|
||
|
||
|
||
/* ------------------------------------------------------------------------ */
|
||
/* palette reader and helper functions */
|
||
/* adapted from Clipshop */
|
||
/* ------------------------------------------------------------------------ */
|
||
|
||
/* strip line feeds from ascii file lines... */
|
||
|
||
void nocr(char *ptr) {
|
||
int idx;
|
||
for (idx = 0; ptr[idx] != 0; idx++)
|
||
if (ptr[idx] == LFEED || ptr[idx] == CRETURN || ptr[idx] == '#')
|
||
ptr[idx] = 0;
|
||
}
|
||
|
||
/*
|
||
squeeze redundant whitespace from lines read-in from a palette file
|
||
(leave only a single space character)
|
||
this is important if the user has created their own palette file
|
||
by hand... since they may accidentally type more than one whitespace
|
||
between RGB values...
|
||
|
||
Also, phototsyler version 2 palette file lines are fixed width,
|
||
right justified so we need to massage these for our reader...
|
||
*/
|
||
void SqueezeLine(char *ptr)
|
||
{
|
||
int idx, jdx, len;
|
||
char buf[128];
|
||
|
||
idx = 0;
|
||
while (ptr[idx] == ' ')idx++; /* remove leading whitespace */
|
||
strcpy(buf, &ptr[idx]);
|
||
|
||
jdx = 0;
|
||
ptr[jdx] = ASCIIZ;
|
||
|
||
for (idx = 0; buf[idx] != ASCIIZ; idx++) {
|
||
if (buf[idx] == 9) buf[idx] = ' '; /* no tabs please */
|
||
if (buf[idx] == ',') buf[idx] = ' '; /* no commas please */
|
||
if (buf[idx] == ' ' && buf[idx +1] == ' ')
|
||
continue;
|
||
/* truncate if any non-numeric characters */
|
||
if ((buf[idx] < '0' || buf[idx] > '9') && buf[idx] != ' ')
|
||
buf[idx] = ASCIIZ;
|
||
ptr[jdx] = buf[idx]; jdx++;
|
||
ptr[jdx] = ASCIIZ;
|
||
}
|
||
|
||
/* remove trailing whitespace...
|
||
this occurrs during parsing of photostyler */
|
||
len = strlen(ptr);
|
||
while (len > 0) {
|
||
len--;
|
||
if (ptr[len] != ' ')
|
||
break;
|
||
ptr[len] = ASCIIZ;
|
||
}
|
||
}
|
||
|
||
/* split the RGB triple from a text line read-in from an
|
||
ascii palette file. */
|
||
int ReadPaletteLine(unsigned char *ptr, unsigned char *palptr, unsigned int colordepth)
|
||
{
|
||
int red, green, blue, idx, spaces = 0;
|
||
|
||
red = atoi(ptr);
|
||
if (red < 0 || red > 255) return INVALID;
|
||
|
||
/* there must be at least 3 fields */
|
||
for (idx = 0; ptr[idx] != 0; idx++) {
|
||
if (ptr[idx] == ' ' && ptr[idx+1] >= '0' && ptr[idx+1] <= '9') {
|
||
spaces++;
|
||
switch(spaces) {
|
||
case 1:
|
||
green = atoi(&ptr[idx+1]);
|
||
if (green < 0 || green > 255) return INVALID;
|
||
break;
|
||
case 2:
|
||
blue = atoi(&ptr[idx+1]);
|
||
if (blue < 0 || blue > 255) return INVALID;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (spaces<2)
|
||
return INVALID;
|
||
|
||
if (colordepth == 6) {
|
||
palptr[0] = (uint8_t)red << 2;
|
||
palptr[1] = (uint8_t)green << 2;
|
||
palptr[2] = (uint8_t)blue << 2;
|
||
}
|
||
else {
|
||
palptr[0] = (uint8_t)red;
|
||
palptr[1] = (uint8_t)green;
|
||
palptr[2] = (uint8_t)blue;
|
||
}
|
||
return SUCCESS;
|
||
|
||
}
|
||
|
||
/* check version if Paintshop palette since JASC may change someday */
|
||
/* also check Aldus version although that product is old... */
|
||
|
||
/* The Top Half of NeoPaint Windows Palettes are the same as their */
|
||
/* DOS palettes so we use the 6 bit color values and handle both */
|
||
/* file types the same way... so no worry about neopaint versions. */
|
||
|
||
char *Gimp = "GIMP Palette"; /* followed by RGB values and comments */
|
||
|
||
/* NeoPaint and PaintShop Pro headers
|
||
3 lines followed by RGB values */
|
||
char *NeoPaint = "NeoPaint Palette File";
|
||
char *PaintShop = "JASC-PAL";
|
||
char *PaintShopVersion = "0100";
|
||
|
||
/* Aldus photostyler
|
||
3 lines followed by RGB values */
|
||
char *AldusPal = "CWPAL";
|
||
char *AldusClr = "CWCLR"; /* partial palettes */
|
||
char *AldusVersion = "100";
|
||
|
||
#define GENERIC 1
|
||
#define GIMP 2
|
||
#define JASC 3
|
||
#define NEO 4
|
||
#define ALDUS 5
|
||
|
||
int16_t GetUserPalette(char *name)
|
||
{
|
||
FILE *fp;
|
||
char buf[128];
|
||
int cnt=16;
|
||
int16_t status = INVALID;
|
||
unsigned colordepth=8,userpaltype=GENERIC;
|
||
|
||
fp = fopen(name,"r");
|
||
if (fp == NULL) return status;
|
||
|
||
for (;;) {
|
||
if (NULL == fgets(buf, 128, fp)) {
|
||
fclose(fp);
|
||
break;
|
||
}
|
||
nocr(buf);
|
||
SqueezeLine(buf);
|
||
|
||
/* check for some known palette types */
|
||
if (strcmp(Gimp, buf)==0) userpaltype = GIMP;
|
||
else if (strcmp(PaintShop, buf)==0) userpaltype = JASC;
|
||
else if (strcmp(NeoPaint, buf)==0) {
|
||
colordepth = 6;
|
||
userpaltype = NEO;
|
||
}
|
||
else if (strcmp(AldusPal, buf) == 0 || strcmp(AldusClr, buf) == 0) {
|
||
userpaltype = ALDUS;
|
||
}
|
||
/* if not a known type then assume it's just a simple csv */
|
||
|
||
status = SUCCESS;
|
||
switch(userpaltype)
|
||
{
|
||
case GENERIC: rewind(fp); break;
|
||
|
||
case JASC:
|
||
case NEO:
|
||
case ALDUS:
|
||
/* check 2 remaining header lines */
|
||
status = INVALID;
|
||
if (NULL == fgets(buf, 128, fp)) break;
|
||
nocr(buf);
|
||
SqueezeLine(buf);
|
||
if (userpaltype == JASC && strcmp(PaintShopVersion, buf)!=0)break;
|
||
if (userpaltype == ALDUS && strcmp(AldusVersion, buf) != 0)break;
|
||
if (NULL == fgets(buf, 128, fp)) break;
|
||
cnt = atoi(buf);
|
||
if (cnt < 16) break;
|
||
status = SUCCESS;
|
||
}
|
||
if (status == INVALID) break;
|
||
|
||
memset(&rgbUser[0][0],0,48);
|
||
cnt = 0;
|
||
while (fgets(buf,128,fp) != NULL) {
|
||
if (buf[0] == '#') continue;
|
||
if (strlen(buf) < 5) continue;
|
||
nocr(buf);
|
||
SqueezeLine(buf);
|
||
if (INVALID == ReadPaletteLine(buf,(uint8_t *)&rgbUser[cnt][0],colordepth)) continue;
|
||
cnt++;
|
||
if (cnt > 15)break;
|
||
}
|
||
break;
|
||
}
|
||
fclose(fp);
|
||
|
||
if (cnt < 15) {
|
||
printf("%s contains only %d colors!",name,cnt);
|
||
}
|
||
if (status == INVALID) {
|
||
printf("%s is not a valid palette file!",name);
|
||
}
|
||
return status;
|
||
}
|
||
|
||
/* returns the Apple II Hires drawcolor 0-15 */
|
||
/* a double hi-res pixel can occur at any one of 7 positions */
|
||
/* in a 4 byte block which spans aux and main screen memory */
|
||
/* the horizontal resolution is 140 pixels */
|
||
int dhrgetpixel(int x,int y)
|
||
{
|
||
int xoff, pattern, idx;
|
||
unsigned char *ptraux, *ptrmain,c1, c2, d1, d2;
|
||
|
||
pattern = (x%7);
|
||
xoff = HB[y] + ((x/7) * 2);
|
||
ptraux = (unsigned char *) &dhrbuf[xoff-0x2000];
|
||
ptrmain = (unsigned char *) &dhrbuf[xoff];
|
||
|
||
|
||
switch(pattern)
|
||
{
|
||
/* left this here for reference
|
||
|
||
unsigned char dhrpattern[7][4] = {
|
||
0,0,0,0,
|
||
0,0,0,1,
|
||
1,1,1,1,
|
||
1,1,2,2,
|
||
2,2,2,2,
|
||
2,3,3,3,
|
||
3,3,3,3};
|
||
*/
|
||
|
||
/* compare colors in the input file to color patterns and return drawcolor */
|
||
/* somewhat inelegant but lazy to read and debug if a problem */
|
||
case 0: c1 = ptraux[0] &0x0f;
|
||
for (idx = 0; idx < 16; idx++) {
|
||
d1 = dhrbytes[idx][0] & 0x0f;
|
||
if (d1 == c1) return idx;
|
||
}
|
||
break;
|
||
case 1: c1 = ptraux[0] & 0x70;
|
||
c2 = ptrmain[0] & 0x01;
|
||
for (idx = 0; idx < 16; idx++) {
|
||
d1 = dhrbytes[idx][0] & 0x70;
|
||
d2 = dhrbytes[idx][1] & 0x01;
|
||
if (d1 == c1 && d2 == c2) return idx;
|
||
}
|
||
break;
|
||
case 2: c1 = ptrmain[0] & 0x1e;
|
||
for (idx = 0; idx < 16; idx++) {
|
||
d1 = dhrbytes[idx][1] & 0x1e;
|
||
if (d1 == c1) return idx;
|
||
}
|
||
break;
|
||
case 3: c1 = ptrmain[0] & 0x60;
|
||
c2 = ptraux[1] & 0x03;
|
||
for (idx = 0; idx < 16; idx++) {
|
||
d1 = dhrbytes[idx][1] & 0x60;
|
||
d2 = dhrbytes[idx][2] & 0x03;
|
||
if (d1 == c1 && d2 == c2) return idx;
|
||
}
|
||
break;
|
||
case 4: c1 = ptraux[1] & 0x3c;
|
||
for (idx = 0; idx < 16; idx++) {
|
||
d1 = dhrbytes[idx][2] & 0x3c;
|
||
if (d1 == c1) return idx;
|
||
}
|
||
break;
|
||
case 5: c1 = ptraux[1] & 0x40;
|
||
c2 = ptrmain[1] & 0x07;
|
||
for (idx = 0; idx < 16; idx++) {
|
||
d1 = dhrbytes[idx][2] & 0x40;
|
||
d2 = dhrbytes[idx][3] & 0x07;
|
||
if (d1 == c1 && d2 == c2) return idx;
|
||
}
|
||
break;
|
||
case 6: c1 = ptrmain[1] & 0x78;
|
||
for (idx = 0; idx < 16; idx++) {
|
||
d1 = dhrbytes[idx][3] & 0x78;
|
||
if (d1 == c1) return idx;
|
||
}
|
||
break;
|
||
}
|
||
|
||
return INVALID;
|
||
|
||
}
|
||
|
||
|
||
int save_to_bmp24(void)
|
||
{
|
||
|
||
FILE *fp;
|
||
uint8_t tempr, tempg, tempb;
|
||
int i,x,y, y2 = 191,idx = 1;
|
||
uint16_t width = 280, height = 192, outpacket;
|
||
|
||
fp = fopen(previewfile,"wb");
|
||
if (NULL == fp) {
|
||
printf("Error opening %s for writing!\n",previewfile);
|
||
preview = 0;
|
||
return INVALID;
|
||
}
|
||
|
||
if (mono == 1 && hgroutput == 0) {
|
||
width = 560;
|
||
height = 384;
|
||
idx = 2;
|
||
}
|
||
|
||
/* write header for 24 bit bmp */
|
||
outpacket = WriteDIBHeader(fp,width,height);
|
||
if (outpacket == 0) {
|
||
fclose(fp);
|
||
remove(previewfile);
|
||
printf("Error writing header to %s!\n",previewfile);
|
||
preview = 0;
|
||
return INVALID;
|
||
}
|
||
|
||
if (mono == 0) {
|
||
/* write rgb triples and double each pixel to preserve the aspect ratio */
|
||
for (y = 0; y< 192; y++) {
|
||
|
||
for (x = 0; x < 140; x++) {
|
||
idx = dhrgetpixel(x,y2);
|
||
|
||
/* range check */
|
||
if (idx < 0 || idx > 15)idx = 0; /* default black */
|
||
|
||
tempr = rgbPreview[idx][0];
|
||
tempg = rgbPreview[idx][1];
|
||
tempb = rgbPreview[idx][2];
|
||
|
||
/* reverse order */
|
||
fputc(tempb, fp);
|
||
fputc(tempg, fp);
|
||
fputc(tempr, fp);
|
||
|
||
/* double-up */
|
||
fputc(tempb, fp);
|
||
fputc(tempg, fp);
|
||
fputc(tempr, fp);
|
||
}
|
||
y2 -= 1;
|
||
}
|
||
}
|
||
else {
|
||
for (y = 0;y< 192;y++,y2--) {
|
||
if (width == 560) applemonobites(y2,1);
|
||
else applemonobites(y2,0);
|
||
for (i=0;i < idx;i++) {
|
||
for (x = 0; x < width; x++) {
|
||
if (buf280[x] == 0) tempb = 0;
|
||
else tempb = 255;
|
||
/* any order - black and white */
|
||
fputc(tempb, fp);
|
||
fputc(tempb, fp);
|
||
fputc(tempb, fp);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
fclose(fp);
|
||
return SUCCESS;
|
||
|
||
}
|
||
|
||
/* titling from a textfile */
|
||
/* only available for full-screen raw output */
|
||
/* no attempt at proportional spacing */
|
||
/* 4 x 6 font titling */
|
||
/* based on a 140 x 192 matrix */
|
||
/* 140 / 4 = 35 characters across */
|
||
/* 192 / 6 = 32 lines down */
|
||
int16_t GetUserTextFile()
|
||
{
|
||
FILE *fp;
|
||
char buf[128];
|
||
int x,y,i,cnt=0;
|
||
|
||
fp = fopen(usertextfile,"r");
|
||
if (NULL == fp) {
|
||
/* for batch operations */
|
||
fp = fopen("b2d.txt","r");
|
||
if (NULL == fp) return INVALID;
|
||
}
|
||
|
||
/* read up to 32 lines of text */
|
||
for (i=0,y=0;i<32;i++,y+=6) {
|
||
if (NULL == fgets(buf, 128, fp)) {
|
||
break;
|
||
}
|
||
nocr(buf);
|
||
if (buf[0] == 0) continue;
|
||
buf[35] = 0;
|
||
for (x=0;x<3;x++) {
|
||
/* creating a black outline */
|
||
thumbDHGR(buf,x,y,0,255,'L');
|
||
/* skip the middle pixels, and fill-in color */
|
||
if (x!=1)thumbDHGR(buf,x,y+1,0,255,'L');
|
||
thumbDHGR(buf,x,y+2,0,255,'L');
|
||
}
|
||
/* now do the middle pixels */
|
||
if (mono == 1) {
|
||
/* for monochrome the letters are always white */
|
||
thumbDHGR(buf,1,y+1,15,255,'L');
|
||
}
|
||
else {
|
||
/* for color the letters can be any color at all except for black */
|
||
if (backgroundcolor == 0)thumbDHGR(buf,1,y+1,15,255,'L');
|
||
else thumbDHGR(buf,1,y+1,(unsigned char)backgroundcolor,255,'L');
|
||
}
|
||
cnt++;
|
||
}
|
||
fclose(fp);
|
||
|
||
/* if we have created titled output, and we have already written a preview image
|
||
we need to over-write it with a titled version */
|
||
if (cnt!= 0 && preview != 0) save_to_bmp24();
|
||
|
||
/* at this point we just return */
|
||
return SUCCESS;
|
||
}
|
||
|
||
|
||
|
||
|
||
int main(int argc, char **argv)
|
||
{
|
||
int16_t idx,jdx,kdx,palidx=5,previewidx=5,hgrpalidx=5,pseudopal=0,
|
||
status,basename=0,plainname=0;
|
||
uint8_t c, ch, *wordptr, *ptr;
|
||
char hgroptions[20];
|
||
|
||
if (argc < 2) {
|
||
pusage();
|
||
return (1);
|
||
}
|
||
|
||
/* allocate our output buffers to support MS-DOS compilers
|
||
but does no harm for 32-bit compilers
|
||
*/
|
||
dhrbuf = hgrbuf = (uint8_t *)malloc(8192);
|
||
if (NULL != hgrbuf) {
|
||
dhrbuf = (uint8_t *)malloc(16384);
|
||
}
|
||
if (dhrbuf == NULL) {
|
||
puts("No memory...");
|
||
return (1);
|
||
}
|
||
|
||
/* initialize color space for color distance */
|
||
setluma();
|
||
|
||
/* automatic naming is used for a number of reasons */
|
||
/* I make no attempt to test for a legal ProDOS file name length - that's up to the user */
|
||
/* but short names should be used when possible for a number of reasons */
|
||
|
||
/* HGR output - options accumulator for HGR long filename - not available in MS-DOS */
|
||
/* this differentiates BIN files created for HGR from AUX,BIN file pairs used for alternate output of DHGR */
|
||
/* and from each other so they can be compared */
|
||
/* for HGR output the preview file is an approximation so far */
|
||
hgroptions[0] = 0;
|
||
|
||
usertextfile[0] = 0;
|
||
|
||
/* getopts */
|
||
if (argc > 2) {
|
||
for (idx = 2; idx < argc; idx++) {
|
||
/* switch character is optional */
|
||
wordptr = (uint8_t *)&argv[idx][0];
|
||
ch = toupper(wordptr[0]);
|
||
if (ch == '-') {
|
||
wordptr = (uint8_t *)&argv[idx][1];
|
||
ch = toupper(wordptr[0]);
|
||
}
|
||
|
||
if (cmpstr(wordptr,"debug") == SUCCESS) {
|
||
debug = 1;
|
||
continue;
|
||
}
|
||
|
||
/* set different Luma for color distance */
|
||
jdx = 0;
|
||
if (cmpstr(wordptr,"GIMP") == SUCCESS) jdx = 411;
|
||
else if (cmpstr(wordptr,"MAGICK") == SUCCESS) jdx = 709;
|
||
else if (cmpstr(wordptr,"HDMI") == SUCCESS) jdx = 240;
|
||
if (jdx != 0) {
|
||
lumaREQ = jdx;
|
||
printf("Using LumaREQ %d\n", lumaREQ);
|
||
setluma();
|
||
continue;
|
||
}
|
||
|
||
/* so-called "quick" commands */
|
||
if (cmpstr(wordptr,"photo") == SUCCESS) {
|
||
dither = FLOYDSTEINBERG;
|
||
continue;
|
||
}
|
||
if (cmpstr(wordptr,"art") == SUCCESS) {
|
||
threshold = 25;
|
||
xmatrix = 2;
|
||
continue;
|
||
}
|
||
if (cmpstr(wordptr,"both") == SUCCESS) {
|
||
dither = FLOYDSTEINBERG;
|
||
threshold = 15;
|
||
xmatrix = 2;
|
||
continue;
|
||
}
|
||
if (cmpstr(wordptr,"sprite") == SUCCESS) {
|
||
outputtype = SPRITE_OUTPUT;
|
||
continue;
|
||
}
|
||
|
||
if (cmpstr(wordptr,"BIN") == SUCCESS) {
|
||
applesoft = 1;
|
||
continue;
|
||
}
|
||
|
||
if (cmpstr(wordptr,"sum") == SUCCESS) {
|
||
errorsum = 1;
|
||
continue;
|
||
}
|
||
|
||
if (cmpstr(wordptr,"mono") == SUCCESS || cmpstr(wordptr,"reverse") == SUCCESS) {
|
||
mono = 1;
|
||
if (dither == 0) dither = FLOYDSTEINBERG;
|
||
if (cmpstr(wordptr,"reverse") == SUCCESS) reverse = 1;
|
||
continue;
|
||
}
|
||
|
||
/* DOS 3.3 header will be appended to Apple II Output */
|
||
if (cmpstr(wordptr,"dos") == SUCCESS) {
|
||
dosheader = 1;
|
||
continue;
|
||
}
|
||
|
||
/* TGR long commands */
|
||
/* to select alternate conversion palette 15 from tohgr, instead of HGR use TGR for HGR long commands */
|
||
if (ch == 'T') {
|
||
c = toupper(wordptr[1]);
|
||
if (c == 'G') {
|
||
c = toupper(wordptr[2]);
|
||
if (c == 'R') {
|
||
wordptr[0] = ch = 'H';
|
||
palidx = hgrpalidx = 16;
|
||
puts("HGR Option TGR: tohgr HGR color conversion palette");
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
switch(ch) {
|
||
case 'A': /* output AUX,BIN - default is A2FC */
|
||
applesoft = 1;
|
||
break;
|
||
case 'B':
|
||
c = wordptr[1];
|
||
if (c == (uint8_t)0) break;
|
||
|
||
if (cmpstr("basename", (char *)&wordptr[0]) == SUCCESS ||
|
||
cmpstr("base", (char *)&wordptr[0]) == SUCCESS) {
|
||
basename = 1;
|
||
break;
|
||
}
|
||
|
||
/* background color 1-15 (0 by default) */
|
||
c = PaintByNumbers((char *)&wordptr[1]);
|
||
if (c!= (uint8_t)255) backgroundcolor = c;
|
||
break;
|
||
|
||
case 'C': ch = toupper(wordptr[1]);
|
||
if (ch == 'P' || ch == 'V') {
|
||
paletteclip = 1;
|
||
break;
|
||
}
|
||
globalclip = 1;
|
||
break;
|
||
|
||
case 'D': if (cmpstr("DL", (char *)&wordptr[0]) == SUCCESS) {
|
||
/* DLGR output */
|
||
loresoutput = 1;
|
||
break;
|
||
}
|
||
|
||
dither = FLOYDSTEINBERG;
|
||
|
||
if (ReadCustomDither((char *)&wordptr[1]) == SUCCESS) {
|
||
break;
|
||
}
|
||
|
||
ch = toupper(wordptr[1]);
|
||
if (ch == 'X') {
|
||
wordptr++;
|
||
serpentine = 1;
|
||
}
|
||
|
||
jdx = atoi((char *)&wordptr[1]);
|
||
if (jdx > 0 && jdx < 10) dither = jdx;
|
||
else {
|
||
ch = toupper(wordptr[1]);
|
||
switch(ch) {
|
||
case 'F': dither = FLOYDSTEINBERG;break;
|
||
case 'J': dither = JARVIS;break;
|
||
case 'S': dither = STUCKI;
|
||
ch = toupper(wordptr[2]);
|
||
if (ch == 'I') dither = SIERRA;
|
||
else if (ch == '2') dither = SIERRATWO;
|
||
else if (ch == 'L') dither = SIERRALITE;
|
||
break;
|
||
case 'A': dither = ATKINSON;break;
|
||
case 'B': dither = BURKES;
|
||
ch = toupper(wordptr[2]);
|
||
if (ch == 'B') dither = 9;
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
|
||
|
||
case 'E':
|
||
/* error diffusion default = E2 */
|
||
diffuse = 2;
|
||
jdx = atoi((char *)&wordptr[1]);
|
||
/* E4 */
|
||
if (jdx == 4) diffuse = 4;
|
||
break;
|
||
|
||
case 'F': /* image fragment - off by default */
|
||
outputtype = SPRITE_OUTPUT;
|
||
ch = toupper(wordptr[1]);
|
||
if (ch == 'M') spritemask = 1;
|
||
break;
|
||
|
||
case 'J':
|
||
/* scaling of larger sizes is pixel by pixel
|
||
when justification is selected */
|
||
justify = 1;
|
||
ch = toupper(wordptr[1]); /* justify */
|
||
switch(ch) {
|
||
case 'L': jxoffset = atoi((char *)&wordptr[2]);
|
||
break;
|
||
case 'T': jyoffset = atoi((char *)&wordptr[2]);
|
||
break;
|
||
|
||
}
|
||
break;
|
||
|
||
case 'H': /* HGR output - command option 'H' */
|
||
/* some options follow */
|
||
hgroutput = 1;
|
||
if (hgroptions[0] == (char)0){
|
||
/* if we are using Sheldon's HGR palette we use the TC suffix */
|
||
/* if we are using Sheldon's DHGR palette modified for HGR we use the C suffix */
|
||
if (hgrpalidx == 16)strcat(hgroptions,"TC");
|
||
else strcat(hgroptions,"C");
|
||
clearcolor = 3; /* set overlay color to violet */
|
||
}
|
||
/* default long file name for HGR color */
|
||
/* HGR long commands - can be followed by separate HGR short commands to over-ride fixed settings */
|
||
/* by default individual pixels are set */
|
||
|
||
/* hgrclean = X, hgrclip = Y, hgrsum = Z */
|
||
for (;;) {
|
||
jdx = strlen((char *)&wordptr[0]);
|
||
if (jdx < 6 || jdx > 9) break;
|
||
if (jdx == 8 || jdx == 9) {
|
||
if (jdx == 8) ptr = (char *)&wordptr[3];
|
||
else ptr = (char *)&wordptr[4];
|
||
if (cmpstr("clean", (char *)&ptr[0]) == SUCCESS) {
|
||
printf("HGR Option X: %s\n",(char *)&ptr[0]);
|
||
globalclip = errorsum = 1;
|
||
ptr[0] = 0;
|
||
strcat(hgroptions,"X");
|
||
jdx = 0;
|
||
}
|
||
}
|
||
if (jdx < 6 || jdx > 8) break;
|
||
jdx = strlen((char *)&wordptr[0]);
|
||
if (jdx == 7 || jdx == 8) {
|
||
if (jdx == 7) ptr = (char *)&wordptr[3];
|
||
else ptr = (char *)&wordptr[4];
|
||
if (cmpstr("clip", (char *)&ptr[0]) == SUCCESS) {
|
||
printf("HGR Option Y: %s\n",(char *)&ptr[0]);
|
||
globalclip = 1;
|
||
ptr[0] = 0;
|
||
strcat(hgroptions,"Y");
|
||
jdx = 0;
|
||
}
|
||
}
|
||
if (jdx < 6 || jdx > 8) break;
|
||
jdx = strlen((char *)&wordptr[0]);
|
||
if (jdx == 6 || jdx == 7) {
|
||
if (jdx == 6) ptr = (char *)&wordptr[3];
|
||
else ptr = (char *)&wordptr[4];
|
||
if (cmpstr("sum", (char *)&ptr[0]) == SUCCESS) {
|
||
printf("HGR Option Z: %s\n",(char *)&ptr[0]);
|
||
errorsum = 1;
|
||
ptr[0] = 0;
|
||
strcat(hgroptions,"Z");
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
|
||
jdx = strlen((char *)&wordptr[0]);
|
||
switch(jdx) {
|
||
/* long commands */
|
||
case 3:
|
||
if (cmpstr("hgr", (char *)&wordptr[0]) == SUCCESS) {
|
||
if (hgrcolortype == (char)0) hgrcolortype = 'B';
|
||
}
|
||
break;
|
||
case 4:
|
||
if (cmpstr("hgrs", (char *)&wordptr[0]) == SUCCESS) {
|
||
/* optionally single colored pixels are set */
|
||
if (hgrcolortype == (char)0) hgrcolortype = 'B';
|
||
doublecolors = 0;
|
||
puts("HGR Option S: single color pixels");
|
||
strcat(hgroptions,"S");
|
||
}
|
||
else if (cmpstr("hgrw", (char *)&wordptr[0]) == SUCCESS) {
|
||
/* optionally double colors are set with a double white overlay */
|
||
if (hgrcolortype == (char)0) hgrcolortype = 'B';
|
||
puts("HGR Option W: double color and white pixels");
|
||
doublecolors = 1;
|
||
doublewhite = 1;
|
||
strcat(hgroptions,"W");
|
||
}
|
||
else if (cmpstr("hgrb", (char *)&wordptr[0]) == SUCCESS) {
|
||
/* optionally double colors are set with a double black overlay */
|
||
if (hgrcolortype == (char)0) hgrcolortype = 'B';
|
||
puts("HGR Option B: double color and black pixels");
|
||
doublecolors = 1;
|
||
doubleblack = 1;
|
||
strcat(hgroptions,"B");
|
||
}
|
||
else if (cmpstr("hgro", (char *)&wordptr[0]) == SUCCESS) {
|
||
/* set HGR output for orange and blue only */
|
||
/* color type is not needed */
|
||
/* no pixel options - individual pixels only */
|
||
puts("HGR Option O: Orange and Blue Palette Only");
|
||
grpal[3][0] = grpal[3][1] = grpal[3][2] = 0;
|
||
grpal[12][0] = grpal[12][1] = grpal[12][2] = 0;
|
||
hgrpaltype = 0x80;
|
||
strcat(hgroptions,"O");
|
||
hgrdither = 0;
|
||
|
||
}
|
||
else if (cmpstr("hgrg", (char *)&wordptr[0]) == SUCCESS) {
|
||
/* set HGR output for green and violet only */
|
||
/* color type is not needed */
|
||
/* no pixel options - individual pixels only */
|
||
clearcolor = 6; /* set overlay color to blue */
|
||
puts("HGR Option G: Green and Violet Palette Only");
|
||
grpal[6][0] = grpal[6][1] = grpal[6][2] = 0;
|
||
grpal[9][0] = grpal[9][1] = grpal[9][2] = 0;
|
||
hgrpaltype = 0;
|
||
strcat(hgroptions,"G");
|
||
hgrdither = 0;
|
||
}
|
||
else if (cmpstr("hgr2",(char *)&wordptr[0]) == SUCCESS) {
|
||
puts("HGR alternate nearest color option");
|
||
strcat(hgroptions,"A");
|
||
hgrdither = 1;
|
||
}
|
||
break;
|
||
case 1:
|
||
case 2:
|
||
/* short commands */
|
||
ch = toupper(wordptr[1]);
|
||
if (ch == 'O' || ch == 'G' || ch == 'B' || ch == 'V' || ch == (char)0) {
|
||
/* this command sets color precedence for the palette bit
|
||
the default is 'O' orange
|
||
|
||
'HO' and 'HG' set strong precedence
|
||
'HB' and 'HV' set weak precedence
|
||
'H' by itself sets equal precedence
|
||
|
||
regardless of precedence both palettes will be used unless specifically disabled
|
||
by 'HGRO' or 'HGRG' which sets 4 color HGR output.
|
||
|
||
*/
|
||
if (ch == (char)0) {
|
||
puts("HGR Precedence Over-ride: Equal");
|
||
}
|
||
else if (ch == 'B' || ch == 'V') {
|
||
printf("HGR Precedence Over-ride: Weak %c\n",ch);
|
||
}
|
||
else {
|
||
printf("HGR Precedence Over-ride: Strong %c\n",ch);
|
||
}
|
||
wordptr[1] = hgrcolortype = ch;
|
||
wordptr[0] = toupper(wordptr[0]);
|
||
strcat(hgroptions,(char *)&wordptr[0]);
|
||
}
|
||
}
|
||
|
||
|
||
/* Low-resolution colors
|
||
0 (black),
|
||
3 (purple),
|
||
6 (medium blue),
|
||
9 (orange),
|
||
12 (light green) and
|
||
15 (white) are also available in high-resolution mode */
|
||
/*
|
||
|
||
/* disable the unused colors in the default palette */
|
||
/* these will be propagated to any alternate palettes that are selected */
|
||
grpal[1][0] = grpal[1][1] = grpal[1][2] = 0;
|
||
grpal[2][0] = grpal[2][1] = grpal[2][2] = 0;
|
||
grpal[4][0] = grpal[4][1] = grpal[4][2] = 0;
|
||
grpal[5][0] = grpal[5][1] = grpal[5][2] = 0;
|
||
grpal[7][0] = grpal[7][1] = grpal[7][2] = 0;
|
||
grpal[8][0] = grpal[8][1] = grpal[8][2] = 0;
|
||
grpal[10][0] = grpal[10][1] = grpal[10][2] = 0;
|
||
grpal[11][0] = grpal[11][1] = grpal[11][2] = 0;
|
||
grpal[13][0] = grpal[13][1] = grpal[13][2] = 0;
|
||
grpal[14][0] = grpal[14][1] = grpal[14][2] = 0;
|
||
break;
|
||
case 'L':
|
||
if (wordptr[1] == (char) 0 || cmpstr(wordptr,"lgr") == SUCCESS) {
|
||
/* LGR output */
|
||
lores = loresoutput = 1;
|
||
break;
|
||
}
|
||
|
||
/* Luma */
|
||
jdx = atoi((char *)&wordptr[1]);
|
||
if (jdx == 601 || jdx == 709 || jdx == 240 || jdx == 911 || jdx == 411) {
|
||
lumaREQ = jdx;
|
||
printf("Using LumaREQ %d\n", lumaREQ);
|
||
setluma();
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case 'M': /* M2 - horizontal merge - S2 mode only */
|
||
/* by default every second pixel is skipped */
|
||
merge = 1;
|
||
break;
|
||
|
||
case 'O': /* use an 8 bit overlay file - must be 140 x 192 */
|
||
/* transparent color must be set or default is 128,128,128 - color 5 */
|
||
c = wordptr[1];
|
||
if (c == (uint8_t)0) break;
|
||
c = PaintByNumbers((char *)&wordptr[1]);
|
||
if (c!= (uint8_t)255) {
|
||
clearcolor = c; break;
|
||
}
|
||
overlay = 1;
|
||
strcpy(maskfile,(char *)&wordptr[1]);
|
||
/* maskfile must have an extension or .bmp is assumed */
|
||
/* this avoids typing extensions which I dislike doing */
|
||
/* so I provide expected extensions. any questions? */
|
||
kdx = 999;
|
||
for (jdx=0;maskfile[jdx]!=0;jdx++) {
|
||
if (maskfile[jdx] == '.')kdx = jdx;
|
||
}
|
||
if (kdx == 999)strcat(maskfile,".bmp");
|
||
break;
|
||
|
||
case 'V': /* create preview file */
|
||
preview = 1;
|
||
if (wordptr[1] == 0) break;
|
||
if (cmpstr(wordptr,"vbmp") == SUCCESS) {
|
||
vbmp = 1;
|
||
break;
|
||
}
|
||
|
||
case 'P':
|
||
if (cmpstr("plainname", (char *)&wordptr[0]) == SUCCESS ||
|
||
cmpstr("plain", (char *)&wordptr[0]) == SUCCESS) {
|
||
plainname = 1;
|
||
break;
|
||
}
|
||
|
||
/* palette settings */
|
||
c = toupper(wordptr[1]);
|
||
/* check for palette names */
|
||
if (c > 57) {
|
||
c = 255;
|
||
if (cmpstr("kegs32", (char *)&wordptr[1]) == SUCCESS ||
|
||
cmpstr("kegs", (char *)&wordptr[1]) == SUCCESS)c = previewidx = palidx = 0;
|
||
else if (cmpstr("cider", (char *)&wordptr[1]) == SUCCESS ||
|
||
cmpstr("ciderpress", (char *)&wordptr[1]) == SUCCESS)c = previewidx = palidx = 1;
|
||
else if (cmpstr("old", (char *)&wordptr[1]) == SUCCESS)c = previewidx = palidx = 2;
|
||
else if (cmpstr("new", (char *)&wordptr[1]) == SUCCESS ||
|
||
cmpstr("applewin", (char *)&wordptr[1]) == SUCCESS)c = previewidx = palidx = 3;
|
||
else if (cmpstr("wikipedia", (char *)&wordptr[1]) == SUCCESS ||
|
||
cmpstr("wiki", (char *)&wordptr[1]) == SUCCESS)c = previewidx = palidx = 4;
|
||
/* Sheldon Simms tohgr and AppleWin NTSC */
|
||
else if (cmpstr("sheldon", (char *)&wordptr[1]) == SUCCESS ||
|
||
cmpstr("todhr", (char *)&wordptr[1]) == SUCCESS ||
|
||
cmpstr("ntsc", (char *)&wordptr[1]) == SUCCESS)c = previewidx = palidx = 5;
|
||
/* Jason Harper's Super Convert DHGR Palette */
|
||
else if (cmpstr("rgb", (char *)&wordptr[1]) == SUCCESS ||
|
||
cmpstr("super", (char *)&wordptr[1]) == SUCCESS ||
|
||
cmpstr("gs", (char *)&wordptr[1]) == SUCCESS) c = previewidx = palidx = 12;
|
||
/* Jace DHGR Palette */
|
||
else if (cmpstr("jace", (char *)&wordptr[1]) == SUCCESS ||
|
||
cmpstr("blurry", (char *)&wordptr[1]) == SUCCESS) c = previewidx = palidx = 13;
|
||
/* Cybnernesto */
|
||
else if (cmpstr("cybernesto", (char *)&wordptr[1]) == SUCCESS)c = previewidx = palidx = 14;
|
||
else if (cmpstr("canvas", (char *)&wordptr[1]) == SUCCESS)c = 7;
|
||
else if (cmpstr("bmp", (char *)&wordptr[1]) == SUCCESS)c = 8;
|
||
else if (cmpstr("win16", (char *)&wordptr[1]) == SUCCESS)c = 8;
|
||
else if (cmpstr("xmp", (char *)&wordptr[1]) == SUCCESS)c = 9;
|
||
else if (cmpstr("win32", (char *)&wordptr[1]) == SUCCESS)c = 9;
|
||
else if (cmpstr("vga", (char *)&wordptr[1]) == SUCCESS)c = 10;
|
||
else if (cmpstr("pcx", (char *)&wordptr[1]) == SUCCESS)c = 11;
|
||
if (c!= 255) {
|
||
if (ch == 'P') palidx = c;
|
||
else previewidx = c;
|
||
break;
|
||
}
|
||
}
|
||
|
||
jdx = GetUserPalette((char *)&wordptr[1]);
|
||
if (jdx == SUCCESS) {
|
||
if (ch == 'P') palidx = 6;
|
||
else previewidx = 6;
|
||
}
|
||
else {
|
||
|
||
|
||
c = toupper(wordptr[1]);
|
||
|
||
if (c == 'P') {
|
||
/* pseudo palette */
|
||
if (wordptr[2] > (char)47 && wordptr[2] < (char)58) {
|
||
jdx = atoi((char *)&wordptr[2]);
|
||
if ((jdx < 0 || jdx > 16) || jdx == 15) break;
|
||
if (pseudocount < PSEUDOMAX) {
|
||
pseudolist[pseudocount] = jdx;
|
||
pseudocount++;
|
||
pseudopal = 1;
|
||
break;
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
if (c == 'K' || c == 'C' || c == 'O' || c == 'N' || c == 'W' || c == 'S'||
|
||
c == 'R' || c == 'G' || c == 'E' || c == 'J' || c == 'V') {
|
||
jdx=0; /* Kegs */
|
||
switch(c) {
|
||
case 'R': /* RGB */
|
||
case 'G': jdx = 12; break; /* Apple II "G" (IIgs) - RGB display */
|
||
case 'J': jdx = 13; break; /* Jace NTSC Palette */
|
||
case 'V': jdx = 14; break; /* VBMP NTSC Palette */
|
||
case 'E': /* Apple II "E" (IIe) - composite display */
|
||
case 'S': jdx++;/* Sheldon Simms NTSC Palette */
|
||
case 'W': jdx++;/* Wikipedia NTSC */
|
||
case 'N': jdx++;/* New AppleWin */
|
||
case 'O': jdx++;/* Old AppleWin */
|
||
case 'C': jdx++;/* CiderPress */
|
||
}
|
||
|
||
}
|
||
else {
|
||
if (c < 48 || c > 59) break;
|
||
jdx = atoi((char *)&wordptr[1]);
|
||
}
|
||
/* palettes 0-5 are the original palettes */
|
||
/* palette 6 is a user palette file */
|
||
/* palettes 7-11 are legacy palettes */
|
||
/* palette 12 is Super Convert RGB palette */
|
||
/* palette 13 is Jace NTSC palette */
|
||
/* palette 14 is Cybernesto's VBMP NTSC palette */
|
||
/* palette 15 defaults to a Pseudo-Palette of the average RGB values
|
||
of Palette 5 (tohgr NTSC) and Palette 12 (Super Convert RGB) */
|
||
/* palette 16 is tohgr's old NTSC colors which as of June 2014 are still used for HGR conversion */
|
||
if (jdx > -1 && jdx < 17) {
|
||
if (ch == 'P') palidx = jdx;
|
||
else previewidx = jdx;
|
||
}
|
||
}
|
||
break;
|
||
case 'Q': quietmode = 0;
|
||
break;
|
||
|
||
case 'R': /* reduced or increased color bleed
|
||
by percentage (for dithering only) */
|
||
|
||
jdx = atoi((char *)&wordptr[1]);
|
||
if ((jdx > 0 && jdx < 101) || (jdx < 0 && jdx > -101)) colorbleed = 100 + jdx;
|
||
break;
|
||
|
||
case 'S': /* by default scaling is set to S1 - full scale (verbatim) */
|
||
/* so choosing option S without the S1 numeric modifier sets scaling to half-scale */
|
||
jdx = atoi((char *)&wordptr[1]);
|
||
|
||
if (jdx == 1) scale = 0; /* S1 full scale (verbatim) */
|
||
else scale = 1; /* S2 - double scaled */
|
||
break;
|
||
case 'T': if (cmpstr("op", (char *)&wordptr[1]) == SUCCESS) {
|
||
/* LGR and DLGR mixed text and graphics */
|
||
loresoutput = appletop = 1;
|
||
break;
|
||
}
|
||
/* use ciderpress tags - off by default */
|
||
tags = 1;
|
||
break;
|
||
case 'X': /* pattern setting for general purpose 2 x 2 cross-hatching */
|
||
xmatrix = 2;
|
||
if (threshold == 0) threshold = 25;
|
||
/* optional pattern setting for general purpose 2 x 2 cross-hatching */
|
||
jdx = atoi((char *)&wordptr[1]);
|
||
if (jdx == 1 || jdx == 3) xmatrix = jdx;
|
||
break;
|
||
case 'Y': /* increase or decrease color - non-cross-hatched ouput */
|
||
/* this can eventually be replaced by a saturation adjustment or
|
||
a hue correction or something else */
|
||
ymatrix = 1;
|
||
jdx = atoi((char *)&wordptr[1]);
|
||
if (jdx == 2 || jdx == 3) ymatrix = jdx;
|
||
break;
|
||
|
||
case 'Z': /* threshold setting for general purpose 2 x 2 cross-hatching */
|
||
/* and for brightening and darkening of colors */
|
||
threshold = 25;
|
||
if (xmatrix == 0)xmatrix = 2;
|
||
jdx = atoi((char *)&wordptr[1]);
|
||
/* allow up to 50% adjustment on RGB values */
|
||
/* surely that's enough */
|
||
if (jdx > 0 && jdx < 51) threshold = jdx;
|
||
break;
|
||
|
||
}
|
||
}
|
||
}
|
||
|
||
/* mutually exclusive commands are handled here */
|
||
if (hgroutput == 1) {
|
||
if (loresoutput == 1) {
|
||
loresoutput = 0;
|
||
puts("HGR output and Lo-Res output are mutually exclusive.\nLo-Res output cancelled!");
|
||
}
|
||
/*
|
||
if (outputtype == SPRITE_OUTPUT) {
|
||
outputtype = BIN_OUTPUT;
|
||
puts("HGR output and Image Fragment output are mutually exclusive.\nImage Fragment output cancelled!");
|
||
}
|
||
*/
|
||
if (mono == 1) {
|
||
mono = 0;
|
||
puts("HGR output and Monochrome output are mutually exclusive.\nMonochrome output cancelled!");
|
||
}
|
||
}
|
||
else {
|
||
hgrdither = 0;
|
||
}
|
||
|
||
if (mono == 1) {
|
||
if (loresoutput == 1) {
|
||
loresoutput = 0;
|
||
puts("Monochrome output and Lo-Res output are mutually exclusive.\nLo-Res output cancelled!");
|
||
}
|
||
if (outputtype == SPRITE_OUTPUT) {
|
||
mono = 0;
|
||
puts("Image Fragment output and Monochrome output are mutually exclusive.\nMonochrome output cancelled!");
|
||
}
|
||
}
|
||
|
||
if (loresoutput == 1) {
|
||
overlay = 0;
|
||
if (outputtype == SPRITE_OUTPUT) {
|
||
outputtype = BIN_OUTPUT;
|
||
puts("Lo-Res output and Image Fragment output are mutually exclusive.\nImage Fragment output cancelled!");
|
||
}
|
||
}
|
||
|
||
/* embedding of image fragments or palette output only */
|
||
if (outputtype != SPRITE_OUTPUT) {
|
||
if (pseudopal == 0) quietmode = 1;
|
||
}
|
||
|
||
jdx = 999;
|
||
strcpy(fname, argv[1]);
|
||
for (idx = 0; fname[idx] != (uint8_t)0; idx++) {
|
||
if (fname[idx] == '.') {
|
||
jdx = idx;
|
||
}
|
||
}
|
||
if (jdx != 999) fname[jdx] = (uint8_t)0;
|
||
|
||
sprintf(bmpfile,"%s.bmp",fname);
|
||
sprintf(dibfile,"%s.dib",fname);
|
||
#ifdef MSDOS
|
||
tags = 0;
|
||
sprintf(previewfile,"%s.pmp",fname);
|
||
sprintf(scaledfile,"%s.smp",fname);
|
||
sprintf(reformatfile,"%s.rmp",fname);
|
||
sprintf(vbmpfile,"%s.vmp",fname);
|
||
#else
|
||
sprintf(previewfile,"%s_Preview.bmp",fname);
|
||
sprintf(scaledfile,"%s_Scaled.bmp",fname);
|
||
sprintf(reformatfile,"%s_Reformat.bmp",fname);
|
||
sprintf(vbmpfile,"%s_VBMP.bmp",fname);
|
||
#endif
|
||
/* user titling file */
|
||
sprintf(usertextfile,"%s.txt",fname);
|
||
|
||
/* upper case basename for Apple II Output */
|
||
for (idx = 0; fname[idx] != (uint8_t)0; idx++) {
|
||
ch = toupper(fname[idx]);
|
||
fname[idx] = ch;
|
||
}
|
||
strcpy(hgrwork,fname);
|
||
|
||
if (basename == 1) {
|
||
/* if they are using the same naming convention that I am */
|
||
/* optionally strip the resolution nomenclature from the input file's base name */
|
||
idx = strlen(hgrwork);
|
||
if (idx > 3) {
|
||
/* in order below: 384 - 560 x 384
|
||
280 - 280 x 192
|
||
640 - 640 x 480
|
||
400 - 640 x 400
|
||
320 - 320 x 200
|
||
140 - 140 x 192
|
||
560 - 560 x 192
|
||
|
||
LGR and DLGR only
|
||
|
||
176 - 176 x 104
|
||
160 - 160 x 80 and 160 x 96
|
||
88 - 88 x 52
|
||
80 - 80 x 40 and 80 x 48
|
||
48 - 80 x 48 and 40 x 48
|
||
40 - 80 x 40 and 40 x 40
|
||
*/
|
||
if (hgrwork[idx-3] == '3' && hgrwork[idx-2] == '8' && hgrwork[idx-1] == '4') hgrwork[idx - 3] = 0;
|
||
else if (hgrwork[idx-3] == '2' && hgrwork[idx-2] == '8' && hgrwork[idx-1] == '0') hgrwork[idx - 3] = 0;
|
||
else if (hgrwork[idx-3] == '6' && hgrwork[idx-2] == '4' && hgrwork[idx-1] == '0') hgrwork[idx - 3] = 0;
|
||
else if (hgrwork[idx-3] == '4' && hgrwork[idx-2] == '0' && hgrwork[idx-1] == '0') hgrwork[idx - 3] = 0;
|
||
else if (hgrwork[idx-3] == '3' && hgrwork[idx-2] == '2' && hgrwork[idx-1] == '0') hgrwork[idx - 3] = 0;
|
||
else if (hgrwork[idx-3] == '1' && hgrwork[idx-2] == '4' && hgrwork[idx-1] == '0') hgrwork[idx - 3] = 0;
|
||
else if (hgrwork[idx-3] == '5' && hgrwork[idx-2] == '6' && hgrwork[idx-1] == '0') hgrwork[idx - 3] = 0;
|
||
else if (hgrwork[idx-3] == '1' && hgrwork[idx-2] == '7' && hgrwork[idx-1] == '6') hgrwork[idx - 3] = 0;
|
||
else if (hgrwork[idx-3] == '1' && hgrwork[idx-2] == '6' && hgrwork[idx-1] == '0') hgrwork[idx - 3] = 0;
|
||
|
||
if (hgrwork[idx - 3] != (char)0) {
|
||
/* LGR and DLGR only */
|
||
if (hgrwork[idx-2] == '8' && hgrwork[idx-1] == '8') hgrwork[idx - 2] = 0;
|
||
else if (hgrwork[idx-2] == '8' && hgrwork[idx-1] == '0') hgrwork[idx - 2] = 0;
|
||
else if (hgrwork[idx-2] == '4' && hgrwork[idx-1] == '8') hgrwork[idx - 2] = 0;
|
||
else if (hgrwork[idx-2] == '4' && hgrwork[idx-1] == '0') hgrwork[idx - 2] = 0;
|
||
}
|
||
}
|
||
}
|
||
|
||
/* CiderPress File Attribute Preservation Tags */
|
||
if (tags == 1) {
|
||
if (hgroutput == 0)
|
||
sprintf(spritefile,"%s.DHR#062000",hgrwork);
|
||
else
|
||
sprintf(spritefile,"%s.RAG#062000",hgrwork);
|
||
|
||
sprintf(fmask,"%s.DHM#062000",hgrwork);
|
||
sprintf(mainfile,"%s.BIN#062000",hgrwork);
|
||
sprintf(auxfile,"%s.AUX#062000",hgrwork);
|
||
sprintf(a2fcfile,"%s.A2FC#062000",hgrwork);
|
||
if (plainname == 0) {
|
||
sprintf(hgrcolor,"%s%s.BIN#062000",hgrwork,hgroptions);
|
||
sprintf(hgrmono,"%sM.BIN#062000",hgrwork);
|
||
if (mono == 1) {
|
||
sprintf(a2fcfile,"%s.A2FM#062000",hgrwork);
|
||
sprintf(mainfile,"%sM.BIN#062000",hgrwork);
|
||
sprintf(auxfile,"%sM.AUX#062000",hgrwork);
|
||
}
|
||
}
|
||
else {
|
||
sprintf(hgrcolor,"%s.BIN#062000",hgrwork);
|
||
sprintf(hgrmono,"%s.BIN#062000",hgrwork);
|
||
}
|
||
}
|
||
else {
|
||
/* tags are off by default */
|
||
/* unadorned file names */
|
||
if (hgroutput == 0)
|
||
sprintf(spritefile,"%s.DHR",hgrwork);
|
||
else
|
||
sprintf(spritefile,"%s.RAG",hgrwork);
|
||
|
||
sprintf(fmask,"%s.DHM",hgrwork);
|
||
sprintf(mainfile,"%s.BIN",hgrwork);
|
||
sprintf(auxfile,"%s.AUX",hgrwork);
|
||
#ifdef MSDOS
|
||
if (plainname == 0 && mono == 1)
|
||
sprintf(a2fcfile,"%s.2FM",hgrwork);
|
||
else
|
||
sprintf(a2fcfile,"%s.2FC",hgrwork);
|
||
strcpy(hgrcolor,hgrwork);
|
||
strcpy(hgrmono,hgrwork);
|
||
#else
|
||
sprintf(a2fcfile,"%s.A2FC",hgrwork);
|
||
|
||
if (plainname == 0) {
|
||
sprintf(hgrcolor,"%s%s.BIN",hgrwork,hgroptions);
|
||
sprintf(hgrmono,"%sM.BIN",hgrwork);
|
||
if (mono == 1) {
|
||
sprintf(a2fcfile,"%s.A2FM",hgrwork);
|
||
sprintf(mainfile,"%sM.BIN#062000",hgrwork);
|
||
sprintf(auxfile,"%sM.AUX#062000",hgrwork);
|
||
}
|
||
}
|
||
else {
|
||
sprintf(hgrcolor,"%s.BIN",hgrwork);
|
||
sprintf(hgrmono,"%s.BIN",hgrwork);
|
||
}
|
||
#endif
|
||
}
|
||
|
||
if (mono == 1) {
|
||
palidx = previewidx = 4;
|
||
/* create a black and white palette */
|
||
memset(&wikipedia[0][0],0,45);
|
||
}
|
||
else {
|
||
/* create pseudo-palette for conversion */
|
||
/* preview using pseudopalette is optional - v15 */
|
||
if (pseudopal != 0) {
|
||
BuildPseudoPalette(palidx);
|
||
palidx = 15;
|
||
}
|
||
}
|
||
|
||
GetBuiltinPalette(palidx,previewidx,0);
|
||
InitDoubleArrays();
|
||
|
||
if (mono == 1) status = ConvertMono();
|
||
else status = Convert();
|
||
|
||
/* close mask file if any before exiting */
|
||
if (NULL != fpmask) fclose(fpmask);
|
||
|
||
free(dhrbuf);
|
||
free(hgrbuf);
|
||
|
||
if (status == INVALID) return (1);
|
||
|
||
return SUCCESS;
|
||
}
|
||
|
||
|