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gint/src/render-cg/dvram.c

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render-cg: decently implement basic functions
2019-05-03 17:11:43 +02:00
#include <gint/display.h>
/* Put both VRAMs in the system stack! */
static uint16_t *main = (void *)0xac0f0000;
static uint16_t *scnd = (void *)0xac11b500;
render: remove the GINT_NEED_VRAM macro This macro used to protect the declaration of the [vram] variable of gint. This variable was short to keep drawing functions short but could clutter the namespace. That being said, it's even better to just [#define vram gint_vram] if you need. This change renames the variable to [gint_vram], exposes it whenever <gint/display.h> is included, and removes the GINT_NEED_VRAM macro altogether.
2019-10-27 08:14:42 +01:00
/* Shared VRAM pointer, the one exposed by <gint/display.h> */
uint16_t *gint_vram = (void *)0xac0f0000;
render-cg: decently implement basic functions
2019-05-03 17:11:43 +02:00
code review and display driver changes t6k11: use the gint array for variant detection r61524: use true triple buffering by default display: define DWIDTH and DHEIGHT display: add C_RGB(r,g,b) (0 ≤ r,g,b ≤ 31) [fxcg50]
2020-02-23 15:49:55 +01:00
/* dvram() - control video RAM address and triple buffering */
render-cg: decently implement basic functions
2019-05-03 17:11:43 +02:00
void dvram(uint16_t *new_main, uint16_t *new_secondary)
{
code review and display driver changes t6k11: use the gint array for variant detection r61524: use true triple buffering by default display: define DWIDTH and DHEIGHT display: add C_RGB(r,g,b) (0 ≤ r,g,b ≤ 31) [fxcg50]
2020-02-23 15:49:55 +01:00
if(gint_vram == main) gint_vram = new_main;
else if(gint_vram == scnd) gint_vram = new_secondary;
render-cg: decently implement basic functions
2019-05-03 17:11:43 +02:00
main = new_main;
scnd = new_secondary;
}
code review and display driver changes t6k11: use the gint array for variant detection r61524: use true triple buffering by default display: define DWIDTH and DHEIGHT display: add C_RGB(r,g,b) (0 ≤ r,g,b ≤ 31) [fxcg50]
2020-02-23 15:49:55 +01:00
/* dvram_switch() - triple buffering switch
This function is not public, it is used only by dupdate(). */
void dvram_switch(void)
{
if(gint_vram == main) gint_vram = scnd;
else gint_vram = main;
}