mirror of
https://github.com/mauiaaron/apple2.git
synced 2024-06-27 22:29:39 +00:00
77e96ba1ec
- Enable tab key
- Allow nonactionable keys to be tapped when in configuration mode
- Add font mini visual for spacebar
282 lines
8.5 KiB
C
282 lines
8.5 KiB
C
/*
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* Apple // emulator for Linux: Video definitions
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*
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* Copyright 1994 Alexander Jean-Claude Bottema
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* Copyright 1995 Stephen Lee
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* Copyright 1997, 1998 Aaron Culliney
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* Copyright 1998, 1999, 2000 Michael Deutschmann
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*
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* This software package is subject to the GNU General Public License
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* version 2 or later (your choice) as published by the Free Software
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* Foundation.
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*
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* THERE ARE NO WARRANTIES WHATSOEVER.
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*
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*/
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#ifndef A2_VIDEO_H
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#define A2_VIDEO_H
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typedef struct video_backend_s {
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// mandatory video backend functions
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void (*init)(void *context);
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void (*main_loop)(void);
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void (*reshape)(int width, int height);
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void (*render)(void);
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void (*shutdown)(void);
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// touch HUD functions
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void (*animation_showTouchKeyboard)(void);
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void (*animation_hideTouchKeyboard)(void);
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void (*animation_showTouchJoystick)(void);
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void (*animation_hideTouchJoystick)(void);
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void (*animation_showTouchMenu)(void);
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void (*animation_hideTouchMenu)(void);
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// misc animations
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void (*animation_showMessage)(char *message, unsigned int cols, unsigned int rows);
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void (*animation_showPaused)(void);
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void (*animation_showCPUSpeed)(void);
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void (*animation_showDiskChosen)(int drive);
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void (*animation_showTrackSector)(int drive, int track, int sect);
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} video_backend_s;
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/*
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* The registered video backend (renderer).
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*/
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extern video_backend_s *video_backend;
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/*
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* Color structure
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*/
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typedef struct A2Color_s {
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uint8_t red;
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uint8_t green;
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uint8_t blue;
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} A2Color_s;
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/*
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* Reference to the internal 8bit-indexed color format
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*/
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extern A2Color_s colormap[];
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/*
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* Prepare the video system, converting console to graphics mode, or
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* opening X window, or whatever. This is called only once when the
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* emulator is run
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*/
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void video_init(void);
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/*
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* Enters main video loop (returns on emulator shutdown request).
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*/
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void video_main_loop(void);
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/*
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* Begins video subsystem shutdown. Because this process is multithreaded, this really just gives notice that a
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* shutdown has been requested, and so various threads should begin their own shutdown process.
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*/
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void video_shutdown(void);
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/*
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* Setup the display. This may be called multiple times in a run, and is
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* used when graphics parameters may have changed.
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*
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* This function is responsible for inserting any needed video-specific hooks
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* into the 6502 memory indirection table. It should *not* hook the
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* soft-switches.
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*
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*/
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void video_reset(void);
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/*
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* Set the font used by the display. QTY characters are loaded starting
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* with FIRST, from DATA. DATA contains 8 bytes for each character, each
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* byte representing a row (top-to-bottom). The row byte contains 7
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* pixels in little-endian format.
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*
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* MODE selects the colors to use
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*
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* 0 - Normal text
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* 1 - MouseText (usually treat as Normal)
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* 2 - Inverse
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* 3 - Flash
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*
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* The extra MouseText mode is in case we want to emulate certain RGB
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* adaptors which color normal text and MouseText differently. I had one
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* once for a //c.
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*/
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void video_loadfont(int first, int qty, const uint8_t *data, int mode);
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/*
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* Redraw the display. This is called after exiting an interface display,
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* when changes have been made to the Apple's emulated framebuffer that
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* bypass the driver's hooks, or when the video mode has changed.
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*/
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void video_redraw(void);
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/*
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* Change the displayed video page to PAGE
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* 0 - Page 1: $400-$7ff/$2000-$3fff
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* 1 - Page 2: $800-$bff/$4000-$5fff
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*/
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void video_setpage(int page);
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/*
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* Get a reference to current internal framebuffer
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*/
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const uint8_t * const video_current_framebuffer();
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// do not access directly, but through inline accessor methods
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extern volatile unsigned long _backend_vid_dirty;
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/*
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* True if anything changed in framebuffer and not yet drawn
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*/
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static inline bool video_isDirty(void) {
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return _backend_vid_dirty;
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}
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/*
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* Atomically set dirty bit, return previous value
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*/
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static inline unsigned long video_setDirty(void) {
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return __sync_fetch_and_or(&_backend_vid_dirty, 1UL);
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}
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/*
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* Atomically clear dirty bit, return previous value
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*/
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static inline unsigned long video_clearDirty(void) {
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return __sync_fetch_and_and(&_backend_vid_dirty, 0UL);
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}
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// ----------------------------------------------------------------------------
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/*
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* VBL routines
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*/
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uint16_t video_scanner_get_address(bool *vblBarOut);
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uint8_t floating_bus(void);
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uint8_t floating_bus_hibit(const bool hibit);
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#define TEXT_ROWS 24
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#define BEGIN_MIX 20
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#define TEXT_COLS 40
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#define TEXT80_COLS (TEXT_COLS*2)
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#define FONT_HEIGHT_PIXELS 16
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#define FONT_WIDTH_PIXELS 14
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#define FONT80_WIDTH_PIXELS (FONT_WIDTH_PIXELS>>1)
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#define _SCANWIDTH (TEXT_COLS * FONT_WIDTH_PIXELS) // 560
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#define SCANHEIGHT (TEXT_ROWS * FONT_HEIGHT_PIXELS) // 384
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// Extra bytes on each side of internal framebuffers for color interpolation hack
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#define _INTERPOLATED_PIXEL_ADJUSTMENT_PRE 4
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#define _INTERPOLATED_PIXEL_ADJUSTMENT_POST 4
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#define INTERPOLATED_PIXEL_ADJUSTMENT (_INTERPOLATED_PIXEL_ADJUSTMENT_PRE+_INTERPOLATED_PIXEL_ADJUSTMENT_POST)
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#define SCANWIDTH (_SCANWIDTH+INTERPOLATED_PIXEL_ADJUSTMENT)
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#define FONT_GLYPH_X (7+/*unused*/1) // generated font.c uses a single byte (8bits) per font glyph line
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#define FONT_GLYPH_Y (FONT_HEIGHT_PIXELS>>1) // ... 8 bytes total for whole glyph
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#define MOUSETEXT_BEGIN 0x80 // offset + 0x20 length
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#define MOUSETEXT_UP (MOUSETEXT_BEGIN+0x0b)
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#define MOUSETEXT_LEFT (MOUSETEXT_BEGIN+0x08)
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#define MOUSETEXT_RIGHT (MOUSETEXT_BEGIN+0x15)
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#define MOUSETEXT_DOWN (MOUSETEXT_BEGIN+0x0a)
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#define MOUSETEXT_OPENAPPLE (MOUSETEXT_BEGIN+0x01)
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#define MOUSETEXT_CLOSEDAPPLE (MOUSETEXT_BEGIN+0x00)
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#define MOUSETEXT_HOURGLASS (MOUSETEXT_BEGIN+0x03)
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#define MOUSETEXT_CHECKMARK (MOUSETEXT_BEGIN+0x04)
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#define ICONTEXT_BEGIN 0xA0 // offset + 0x22 length
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#define ICONTEXT_MENU_BEGIN ICONTEXT_BEGIN
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#define ICONTEXT_MENU_END (ICONTEXT_MENU_BEGIN+0x0A)
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#define ICONTEXT_DISK_UL (ICONTEXT_BEGIN+0x0B)
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#define ICONTEXT_DISK_UR (ICONTEXT_BEGIN+0x0C)
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#define ICONTEXT_DISK_LL (ICONTEXT_BEGIN+0x0D)
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#define ICONTEXT_DISK_LR (ICONTEXT_BEGIN+0x0E)
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#define ICONTEXT_UNLOCK (ICONTEXT_BEGIN+0x0F)
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#define ICONTEXT_GOTO (ICONTEXT_BEGIN+0x10)
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#define ICONTEXT_SPACE_VISUAL (ICONTEXT_BEGIN+0x11)
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#define ICONTEXT_MENU_SPROUT (MOUSETEXT_BEGIN+0x1B)
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#define ICONTEXT_MENU_TOUCHJOY (ICONTEXT_BEGIN+0x12)
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#define ICONTEXT_KBD_BEGIN (ICONTEXT_BEGIN+0x13)
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#define ICONTEXT_CTRL (ICONTEXT_KBD_BEGIN+0x00)
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#define ICONTEXT_LOWERCASE (ICONTEXT_KBD_BEGIN+0x01)
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#define ICONTEXT_UPPERCASE (ICONTEXT_KBD_BEGIN+0x02)
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#define ICONTEXT_SHOWALT1 (ICONTEXT_KBD_BEGIN+0x03)
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#define ICONTEXT_BACKSPACE (ICONTEXT_KBD_BEGIN+0x04)
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#define ICONTEXT_LEFTSPACE (ICONTEXT_KBD_BEGIN+0x06)
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#define ICONTEXT_MIDSPACE (ICONTEXT_KBD_BEGIN+0x07)
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#define ICONTEXT_RIGHTSPACE (ICONTEXT_KBD_BEGIN+0x08)
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#define ICONTEXT_ESC (ICONTEXT_KBD_BEGIN+0x09)
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#define ICONTEXT_RETURN_L (ICONTEXT_KBD_BEGIN+0x0A)
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#define ICONTEXT_RETURN_R (ICONTEXT_KBD_BEGIN+0x0B)
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#define ICONTEXT_NONACTIONABLE (ICONTEXT_KBD_BEGIN+0x0C)
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#define ICONTEXT_LEFT_TAB (ICONTEXT_KBD_BEGIN+0x..)
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#define ICONTEXT_RIGHT_TAB (ICONTEXT_KBD_BEGIN+0x..)
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#define COLOR_BLACK 0
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#define COLOR_DARK_RED 35
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#define COLOR_MEDIUM_RED 36
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#define COLOR_LIGHT_RED 37 /* hgr used */
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#define COLOR_DARK_GREEN 38
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#define COLOR_MEDIUM_GREEN 39
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#define COLOR_LIGHT_GREEN 40 /* hgr used */
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#define COLOR_DARK_YELLOW 41
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#define COLOR_MEDIUM_YELLOW 42
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#define COLOR_LIGHT_YELLOW 43
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#define COLOR_DARK_BLUE 44
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#define COLOR_MEDIUM_BLUE 45
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#define COLOR_LIGHT_BLUE 46 /* hgr used */
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#define COLOR_DARK_PURPLE 47
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#define COLOR_MEDIUM_PURPLE 48
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#define COLOR_LIGHT_PURPLE 49 /* hgr used */
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#define COLOR_DARK_CYAN 50
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#define COLOR_MEDIUM_CYAN 51
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#define COLOR_LIGHT_CYAN 52
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#define COLOR_DARK_WHITE 53
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#define COLOR_MEDIUM_WHITE 54
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#define COLOR_LIGHT_WHITE 55
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#define COLOR_FLASHING_BLACK 56
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#define COLOR_FLASHING_WHITE 57
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#define COLOR_FLASHING_UNGREEN 58
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#define COLOR_FLASHING_GREEN 59
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/* ----------------------------------
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generic graphics globals
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---------------------------------- */
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/*
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* Pointers to framebuffer (can be VGA memory or host buffer)
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*/
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extern uint8_t *video__fb1;
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extern uint8_t *video__fb2;
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/*
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* Current visual page
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*/
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extern READONLY int video__current_page;
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#endif /* !A2_VIDEO_H */
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