59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
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#ifndef __ID_PM__
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#define __ID_PM__
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#ifdef USE_HIRES
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#define PMPageSize 16384
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#else
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#define PMPageSize 4096
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#endif
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extern int ChunksInFile;
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extern int PMSpriteStart;
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extern int PMSoundStart;
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extern bool PMSoundInfoPagePadded;
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// ChunksInFile+1 pointers to page starts.
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// The last pointer points one byte after the last page.
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extern uint8_t **PMPages;
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void PM_Startup();
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void PM_Shutdown();
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static inline uint32_t PM_GetPageSize(int page)
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{
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if(page < 0 || page >= ChunksInFile)
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Quit("PM_GetPageSize: Tried to access illegal page: %i", page);
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return (uint32_t) (PMPages[page + 1] - PMPages[page]);
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}
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static inline uint8_t *PM_GetPage(int page)
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{
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if(page < 0 || page >= ChunksInFile)
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Quit("PM_GetPage: Tried to access illegal page: %i", page);
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return PMPages[page];
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}
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static inline uint8_t *PM_GetEnd()
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{
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return PMPages[ChunksInFile];
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}
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static inline byte *PM_GetTexture(int wallpic)
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{
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return PM_GetPage(wallpic);
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}
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static inline uint16_t *PM_GetSprite(int shapenum)
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{
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// correct alignment is enforced by PM_Startup()
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return (uint16_t *) (void *) PM_GetPage(PMSpriteStart + shapenum);
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}
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static inline byte *PM_GetSound(int soundpagenum)
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{
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return PM_GetPage(PMSoundStart + soundpagenum);
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}
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#endif
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