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The Cirrus Logic graphics cards now support the 8-byte latches, fixes 16 colors drivers;

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The Cirrus Logic graphics cards now support the 15 bpp/palette mix, 8 bpp grayscale, and 8 bpp 3:3:2 RGB modes;
The makefiles now do -funroll_loops.
This commit is contained in:
OBattler
2019-10-01 15:14:51 +02:00
parent b114b62695
commit 591cd2e019
11 changed files with 673 additions and 156 deletions
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45
src/video/video.c
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@@ -80,6 +80,8 @@ int xsize = 1,
int cga_palette = 0,
herc_blend = 0;
uint32_t *video_6to8 = NULL,
*video_8togs = NULL,
*video_8to32 = NULL,
*video_15to32 = NULL,
*video_16to32 = NULL;
int egareads = 0,
@@ -517,6 +519,26 @@ calc_6to8(int c)
}
int
calc_8to32(int c)
{
int b, g, r;
double db, dg, dr;
b = (c & 3);
g = ((c >> 2) & 7);
r = ((c >> 5) & 7);
db = (((double) b) / 3.0) * 255.0;
dg = (((double) g) / 7.0) * 255.0;
dr = (((double) r) / 7.0) * 255.0;
b = (int) db;
g = ((int) dg) << 8;
r = ((int) dr) << 16;
return(b | g | r);
}
int
calc_15to32(int c)
{
@@ -666,19 +688,20 @@ video_init(void)
video_6to8 = malloc(4 * 256);
for (c = 0; c < 256; c++)
video_6to8[c] = calc_6to8(c);
video_8togs = malloc(4 * 256);
for (c = 0; c < 256; c++)
video_8togs[c] = c | (c << 16) | (c << 24);
video_8to32 = malloc(4 * 256);
for (c = 0; c < 256; c++)
video_8to32[c] = calc_8to32(c);
video_15to32 = malloc(4 * 65536);
#if 0
for (c = 0; c < 65536; c++)
video_15to32[c] = ((c & 31) << 3) | (((c >> 5) & 31) << 11) | (((c >> 10) & 31) << 19);
#endif
for (c = 0; c < 65536; c++)
video_15to32[c] = calc_15to32(c);
video_16to32 = malloc(4 * 65536);
#if 0
for (c = 0; c < 65536; c++)
video_16to32[c] = ((c & 31) << 3) | (((c >> 5) & 63) << 10) | (((c >> 11) & 31) << 19);
#endif
for (c = 0; c < 65536; c++)
video_16to32[c] = calc_16to32(c);
@@ -697,9 +720,11 @@ video_close(void)
thread_destroy_event(blit_data.blit_complete);
thread_destroy_event(blit_data.wake_blit_thread);
free(video_6to8);
free(video_15to32);
free(video_16to32);
free(video_15to32);
free(video_8to32);
free(video_8togs);
free(video_6to8);
destroy_bitmap(buffer32);