34 lines
729 B
C
34 lines
729 B
C
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#include "screen.h"
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#include "types.h"
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#include <clib/exec_protos.h>
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#include <exec/memory.h>
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void allocateScreenMemory(struct ScreenSetup *screenSetup) {
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char *memory = (char *)AllocMem(
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TOTAL_SCREEN_SETUP_SIZE(screenSetup),
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MEMF_CLEAR | MEMF_CHIP
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);
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screenSetup->memoryStart = memory;
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}
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void freeScreenMemory(struct ScreenSetup *screenSetup) {
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FreeMem(
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screenSetup->memoryStart,
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TOTAL_SCREEN_SETUP_SIZE(screenSetup)
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);
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}
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void prepareScreen(
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struct ScreenSetup *screenSetup,
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uint16_t width,
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uint16_t height,
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uint8_t bitplanes
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) {
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screenSetup->width = width;
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screenSetup->height = height;
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screenSetup->bitplanes = bitplanes;
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screenSetup->nextBitplaneAdvance = width * height / 8;
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}
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