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Started to add tgi text output functions
git-svn-id: svn://svn.cc65.org/cc65/trunk@1428 b7a2c559-68d2-44c3-8de9-860c34a00d81
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@ -42,7 +42,9 @@ TGI_HDR_XRES = 4 ; X resolution
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TGI_HDR_YRES = 6 ; Y resolution
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TGI_HDR_COLORCOUNT = 8 ; Number of available colors
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TGI_HDR_PAGECOUNT = 9 ; Number of screens available
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TGI_HDR_RES = 10 ; Reserved for extensions
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TGI_HDR_FONTSIZE_X = 10 ; System font size in X direction
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TGI_HDR_FONTSIZE_Y = 11 ; System font size in Y direction
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TGI_HDR_RES = 12 ; Reserved for extensions
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TGI_HDR_JUMPTAB = 16
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TGI_HDR_INSTALL = TGI_HDR_JUMPTAB+0 ; INSTALL routine
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@ -64,8 +66,16 @@ TGI_HDR_HORLINE = TGI_HDR_JUMPTAB+30 ; HORLINE routine
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TGI_HDR_LINE = TGI_HDR_JUMPTAB+32 ; LINE routine
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TGI_HDR_BAR = TGI_HDR_JUMPTAB+34 ; BAR routine
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TGI_HDR_CIRCLE = TGI_HDR_JUMPTAB+36 ; CIRCLE routine
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TGI_HDR_TEXTSTYLE = TGI_HDR_JUMPTAB+39 ; TEXTSTYLE routine
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TGI_HDR_OUTTEXT = TGI_HDR_JUMPTAB+42 ; OUTTEXT routine
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TGI_HDR_JUMPCOUNT = 19 ; Number of jump vectors
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TGI_HDR_JUMPCOUNT = 21 ; Number of jump vectors
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;------------------------------------------------------------------------------
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; Text style constants
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TGI_TEXT_HORIZONTAL = 0
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TGI_TEXT_VERTICAL = 1
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;------------------------------------------------------------------------------
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; Variables
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@ -76,10 +86,15 @@ TGI_HDR_JUMPCOUNT = 19 ; Number of jump vectors
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.global _tgi_curx ; Current drawing cursor X
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.global _tgi_cury ; Current drawing cursor Y
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.global _tgi_color ; Current drawing color
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.global _tgi_textdir ; Current text direction
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.global _tgi_textmagx ; Text magnification in X dir
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.global _tgi_textmagy ; Text magnification in Y dir
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.global _tgi_xres ; X resolution of the current mode
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.global _tgi_yres ; Y resolution of the current mode
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.global _tgi_colorcount ; Number of available colors
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.global _tgi_pagecount ; Number of available screen pages
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.global _tgi_fontsizex ; System font X size
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.global _tgi_fontsizey ; System font Y size
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;------------------------------------------------------------------------------
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; Driver entry points
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@ -103,7 +118,8 @@ TGI_HDR_JUMPCOUNT = 19 ; Number of jump vectors
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.global tgi_line
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.global tgi_bar
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.global tgi_circle
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.global tgi_textstyle
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.global tgi_outtext
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;------------------------------------------------------------------------------
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; ASM functions
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@ -113,5 +129,8 @@ TGI_HDR_JUMPCOUNT = 19 ; Number of jump vectors
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.global tgi_inv_arg
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.global tgi_linepop
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.global tgi_set_ptr
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.global tgi_popxy
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.global tgi_popxy2
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.global tgi_curtoxy
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@ -47,6 +47,18 @@
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/*****************************************************************************/
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/* Definitions */
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/*****************************************************************************/
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/* Constants used for tgi_textstyle */
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#define TGI_TEXT_HORIZONTAL 0
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#define TGI_TEXT_VERTICAL 1
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/*****************************************************************************/
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/* Functions */
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/*****************************************************************************/
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@ -163,6 +175,30 @@ void __fastcall__ tgi_outtext (int x, int y, const char* text);
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void __fastcall__ tgi_bar (int x1, int y1, int x2, int y2);
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/* Draw a bar (a filled rectangle) using the current color. */
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void __fastcall__ tgi_textstyle (unsigned char magx, unsigned char magy,
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unsigned char dir);
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/* Set the style for text output. */
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unsigned __fastcall__ tgi_textwidth (const char* s);
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/* Calculate the width of the text in pixels according to the current text
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* style.
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*/
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unsigned __fastcall__ tgi_textheight (const char* s);
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/* Calculate the height of the text in pixels according to the current text
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* style.
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*/
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void __fastcall__ tgi_outtext (const char* s);
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/* Output text at the current graphics cursor position. The graphics cursor
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* is moved to the end of the text.
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*/
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void __fastcall__ tgi_outtextxy (int x, int y, const char* s);
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/* Output text at the given cursor position. The graphics cursor is moved to
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* the end of the text.
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*/
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/* End of tgi.h */
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@ -28,7 +28,9 @@
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.word 200 ; Y resolution
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.byte 2 ; Number of drawing colors
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.byte 1 ; Number of screens available
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.res 6, $00 ; Reserved for future extensions
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.byte 8 ; System font X size
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.byte 8 ; System font Y size
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.res 4, $00 ; Reserved for future extensions
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; Next comes the jump table. Currently all entries must be valid and may point
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; to an RTS for test versions (function not implemented). A future version may
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@ -55,7 +57,8 @@
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.word LINE
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.word 0 ; BAR
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.word CIRCLE
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.word TEXTSTYLE
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.word OUTTEXT
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; ------------------------------------------------------------------------
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; Data.
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@ -109,6 +112,11 @@ OLDCH1: .res 1
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CHUNK2: .res 1
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OLDCH2: .res 1
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; Text output stuff
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TEXTMAGX: .res 1
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TEXTMAGY: .res 1
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TEXTDIR: .res 1
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; Constants and tables
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.rodata
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@ -450,7 +458,7 @@ GETPIXEL:
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rts
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; ------------------------------------------------------------------------
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; HORLINE: Draw a horizontal line from X1/Y to X2/Y, where X1 = ptr1,
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; HORLINE: Draw a horizontal line from X1/Y to X2/Y, where X1 = ptr1,
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; Y = ptr2 and X2 = ptr3, using the current drawing color.
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;
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; This is a special line drawing entry used when the line is know to be
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@ -686,7 +694,7 @@ XFIXC: sta TEMP
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bmi @C1 ;Skip if column is negative
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cmp #39 ;End if move past end of screen
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bcs EXIT
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@C1: lda POINT
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@C1: lda POINT
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adc #8
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sta POINT
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bcc @CONT
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@ -1139,6 +1147,31 @@ PCHUNK2:
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sta (X2),y
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EXIT3: rts
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; ------------------------------------------------------------------------
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; TEXTSTYLE: Set the style used when calling OUTTEXT. Text scaling in X and Y
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; direction is passend in X/Y, the text direction is passed in A.
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;
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; Must set an error code: NO
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;
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TEXTSTYLE:
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stx TEXTMAGX
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sty TEXTMAGY
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sta TEXTDIR
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rts
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; ------------------------------------------------------------------------
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; OUTTEXT: Output text at X/Y = ptr1/ptr2 using the current color and the
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; current text style. The text to output is given as a zero terminated
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; string with address in ptr3.
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;
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; Must set an error code: NO
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;
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OUTTEXT:
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rts
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; ------------------------------------------------------------------------
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; Calculate all variables to plot the pixel at X1/Y1. If the point is out
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; of range, a carry is returned and INRANGE is set to a value !0 zero. If
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