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add a 'raw palette' option that can be decoded by the frontend.

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aliaspider
2015-03-19 23:16:52 +01:00
parent 330d36ee70
commit d370e2d37f
1 changed files with 50 additions and 7 deletions
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57
src/drivers/libretro/libretro.c
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@@ -37,6 +37,7 @@ static retro_input_state_t input_cb = NULL;
static retro_audio_sample_batch_t audio_batch_cb = NULL;
static retro_environment_t environ_cb = NULL;
static bool use_overscan;
static bool use_raw_palette;
/* emulator-specific variables */
@@ -466,7 +467,7 @@ void retro_set_controller_port_device(unsigned a, unsigned b)
void retro_set_environment(retro_environment_t cb)
{
static const struct retro_variable vars[] = {
{ "nes_palette", "Color Palette; asqrealc|loopy|quor|chris|matt|pasofami|crashman|mess|zaphod-cv|zaphod-smb|vs-drmar|vs-cv|vs-smb|nintendo-vc" },
{ "nes_palette", "Color Palette; asqrealc|loopy|quor|chris|matt|pasofami|crashman|mess|zaphod-cv|zaphod-smb|vs-drmar|vs-cv|vs-smb|nintendo-vc|raw" },
{ NULL, NULL },
};
@@ -531,12 +532,27 @@ static void emulator_set_custom_palette (void)
{
uint8 i,r,g,b;
use_raw_palette = false;
if (current_palette == 0)
{
FCEU_ResetPalette(); /* Do palette reset*/
return;
}
if (current_palette == 15) /* raw palette */
{
use_raw_palette = true;
for (i = 0; i < 64; i++)
{
r = (((i >> 0) & 0xF) * 255) / 15;
g = (((i >> 4) & 0x3) * 255) / 3;
FCEUD_SetPalette( i, r, g, 0);
}
return;
}
/* Setup this palette*/
for ( i = 0; i < 64; i++ )
@@ -643,6 +659,8 @@ static void check_variables(void)
current_palette = 13;
else if (strcmp(var.value, "nintendo-vc") == 0)
current_palette = 14;
else if (strcmp(var.value, "raw") == 0)
current_palette = 15;
if (current_palette != orig_value)
emulator_set_custom_palette();
@@ -728,9 +746,21 @@ void retro_run(void)
#ifndef PSP
pitch = 512;
gfx = XBuf;
for (y = 0; y < height; y++)
for ( x = 0; x < width; x++, gfx++)
video_out[y * width + x] = retro_palette[*gfx];
if (use_raw_palette)
{
extern uint8 PPU[4];
int deemp = (PPU[1] >> 5) << 2;
for (y = 0; y < height; y++)
for ( x = 0; x < width; x++, gfx++)
video_out[y * width + x] = retro_palette[*gfx & 0x3F] | deemp;
}
else
{
for (y = 0; y < height; y++)
for ( x = 0; x < width; x++, gfx++)
video_out[y * width + x] = retro_palette[*gfx];
}
#endif
}
else
@@ -741,9 +771,22 @@ void retro_run(void)
#ifndef PSP
pitch = 512 - 32;
gfx = XBuf + 8 + 256 * 8;
for (y = 0; y < height; y++, gfx += 16)
for ( x = 0; x < width; x++, gfx++)
video_out[y * width + x] = retro_palette[*gfx];
if (use_raw_palette)
{
extern uint8 PPU[4];
int deemp = (PPU[1] >> 5) << 2;
for (y = 0; y < height; y++, gfx += 16)
for ( x = 0; x < width; x++, gfx++)
video_out[y * width + x] = retro_palette[*gfx & 0x3F] | deemp;
}
else
{
for (y = 0; y < height; y++, gfx += 16)
for ( x = 0; x < width; x++, gfx++)
video_out[y * width + x] = retro_palette[*gfx];
}
#endif
}