mirror of
https://github.com/lscharen/iigs-game-engine.git
synced 2024-11-28 20:49:38 +00:00
79 lines
3.5 KiB
C
79 lines
3.5 KiB
C
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/* ********************************************************************
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GTE is copyright Lucas Scharenbroich and licensed under the Apache-2.0
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License.
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The following GTE function definitions are taken from the GTE Toolbox
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documentation:
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https://lscharen.github.io/iigs-game-engine/toolboxref.html
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And from the GTE Macros:
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https://github.com/lscharen/iigs-game-engine/blob/d7be9f1be44748b0180c930b1f90b144cda661ea/macros/GTE.Macs.s
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The contents of this file are a derivite work from GTE intended to
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ease the process of calling GTE / Tool 160 from ORCA/C and are believed
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to be permitted under the terms of the Apache-2.0 License.
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********************************************************************* */
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#ifndef _GTE_HEADER_INCLUDE_
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#define _GTE_HEADER_INCLUDE_
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/* GTE Housekeeping Routines */
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extern pascal void GTEBootInit(void) inline(0x01A0, dispatcher);
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extern pascal void GTEStartUp(Word dPageAddr, Word capFlags, Word userID) inline(0x02A0, dispatcher);
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extern pascal void GTEShutDown(void) inline(0x03A0, dispatcher);
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extern pascal Word GTEVersion(void) inline(0x04A0, dispatcher);
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extern pascal void GTEReset(void) inline(0x05A0, dispatcher);
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extern pascal Word GTEStatus(void) inline(0x06A0, dispatcher);
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/* GTE Sprite Routines */
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extern pascal void GTECreateSpriteStamp(Word spriteDescriptor, Word vBuffAddr) inline(0x0FA0, dispatcher);
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extern pascal void GTEAddSprite(Word spriteSlot, Word spriteFlags, Word vBuffAddr, Word x, Word y) inline(0x10A0, dispatcher);
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extern pascal void GTEMoveSprite(Word spriteSlot, Word x, Word y) inline(0x11A0, dispatcher);
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extern pascal void GTEUpdateSprite(Word spriteSlot, Word spriteFlags, Word vBuffAddr) inline(0x12A0, dispatcher);
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extern pascal void GTERemoveSprite(Word spriteSlot) inline(0x13A0, dispatcher);
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/* GTE Tile Routines */
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extern pascal void GTELoadTileSet(Pointer tileSetPtr) inline(0x0EA0, dispatcher);
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extern pascal void GTEFillTileStore(Word tileID) inline(0x25A0, dispatcher);
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/* GTE Primary Background Routines */
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extern pascal void GTESetBG0Origin(Word x, Word y) inline(0x0CA0, dispatcher);
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extern pascal void GTERender(Word flags) inline(0x0DA0, dispatcher);
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/* GTE Global State Functions */
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extern pascal void GTESetScreenMode(Word width, Word height) inline(0x0AA0, dispatcher);
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extern pascal void GTESetPalette(Word palNum, Pointer palettePtr) inline(0x16A0, dispatcher);
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/* GTE Misc. Functions */
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extern pascal Word GTEReadControl(void) inline(0x09A0, dispatcher);
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extern pascal Word GTEGetSeconds(void) inline(0x14A0, dispatcher);
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/* GTE Sprite Constants */
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#define GTE_SPRITE_HIDE 0x2000
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#define GTE_SPRITE_16X16 0x1800
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#define GTE_SPRITE_16X8 0x1000
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#define GTE_SPRITE_8X16 0x0800
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#define GTE_SPRITE_8X8 0x0000
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#define GTE_SPRITE_VFLIP 0x0400
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#define GTE_SPRITE_HFLIP 0x0200
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/* GTE Sprint Stamp Storage Parameters */
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#define GTE_VBUFF_STRIDE_BYTES (12 * 4) /* Each line has 4 slots of 16 pixels + 8 buffer pixels */
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#define GTE_VBUFF_TILE_ROW_BYTES (8 * GTE_VBUFF_STRIDE_BYTES) /* Each row is comprised of 8 lines */
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#define GTE_VBUFF_TILE_COL_BYTES (4)
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#define GTE_VBUFF_SPRITE_STEP (GTE_VBUFF_TILE_ROW_BYTES*3) /* Allocate space for 16 rows + 8 rows of buffer */
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#define GTE_VBUFF_SPRITE_START (GTE_VBUFF_TILE_ROW_BYTES+4) /* Start at an offset so $0000 can be used as an empty value */
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#define GTE_VBUFF_SLOT_COUNT (48) /* Have space for this many stamps */
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#endif /* _GTE_HEADER_INCLUDE_ */
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