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35 lines
955 B
C
35 lines
955 B
C
#include <gint/display.h>
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/* Put both VRAMs in the system stack! */
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static uint16_t *main = (void *)0xac0f0000;
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static uint16_t *scnd = (void *)0xac11b500;
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/* On Prizm: should be: 0xa80f0000 and 0xa811b500 */
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/* Shared VRAM pointer, the one exposed by <gint/display.h> */
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uint16_t *gint_vram = (void *)0xac0f0000;
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/* dsetvram() - Control video RAM address and triple buffering */
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void dsetvram(uint16_t *new_main, uint16_t *new_secondary)
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{
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if(gint_vram == main) gint_vram = new_main;
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else if(gint_vram == scnd) gint_vram = new_secondary;
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main = new_main;
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scnd = new_secondary;
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}
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/* dgetvram() - Get VRAM addresses */
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void dgetvram(uint16_t **ptr_main, uint16_t **ptr_scnd)
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{
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if(ptr_main) *ptr_main = main;
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if(ptr_scnd) *ptr_scnd = scnd;
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}
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/* dvram_switch() - Triple buffering switch
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This function is not public, it is used only by dupdate(). */
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void dvram_switch(void)
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{
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if(gint_vram == main) gint_vram = scnd;
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else gint_vram = main;
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}
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