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small improvements to libretro.c

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This commit is contained in:
twinaphex
2014-12-08 20:56:42 +01:00
parent d2618d4f03
commit 6a9071669d
1 changed files with 10 additions and 11 deletions
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21
src/drivers/libretro/libretro.c
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@@ -100,6 +100,7 @@ int FCEUD_SendData(void *data, uint32 len)
#define RED_MASK 0xF800
#define GREEN_MASK 0x7e0
#define BLUE_MASK 0x1f
#define BUILD_PIXEL_RGB565(R,G,B) (((int) ((R)&0x1f) << RED_SHIFT) | ((int) ((G)&0x3f) << GREEN_SHIFT) | (int) ((B) & 0x1f))
#else
#define RED_SHIFT 10
#define GREEN_SHIFT 5
@@ -109,12 +110,17 @@ int FCEUD_SendData(void *data, uint32 len)
#define BLUE_EXPAND 3
#endif
void FCEUD_SetPalette(unsigned char index, unsigned char r, unsigned char g, unsigned char b)
{
#ifdef FRONTEND_SUPPORTS_RGB565
retro_palette[index] = BUILD_PIXEL_RGB565(r >> 3, g >> 2, b >> 3);
#else
r >>= RED_EXPAND;
g >>= GREEN_EXPAND;
b >>= BLUE_EXPAND;
retro_palette[index] = (r << RED_SHIFT) | (g << GREEN_SHIFT) | (b << BLUE_SHIFT);
#endif
}
void FCEUD_GetPalette(unsigned char i, unsigned char *r, unsigned char *g, unsigned char *b)
@@ -661,15 +667,6 @@ static void FCEUD_UpdateInput(void)
JSReturn[0] = pad[0] | (pad[1] << 8);
}
void FCEUD_WriteSoundData(int32 *Buffer, int Count)
{
int y;
for (y = 0; y < Count; y++)
Buffer[y] = (Buffer[y] << 16) | (Buffer[y] & 0xffff);
audio_batch_cb((const int16_t*)Buffer, Count);
}
void FCEUD_Update(uint8 *XBuf, int32 *Buffer, int Count)
{
}
@@ -690,8 +687,10 @@ void retro_run(void)
FCEUI_Emulate(&gfx, &sound, &ssize, 0);
if (ssize)
FCEUD_WriteSoundData(sound, ssize);
for (y = 0; y < ssize; y++)
sound[y] = (sound[y] << 16) | (sound[y] & 0xffff);
audio_batch_cb((const int16_t*)sound, ssize);
#ifdef PSP
static unsigned int __attribute__((aligned(16))) d_list[32];
void* const texture_vram_p = (void*) (0x44200000 - (256 * 256)); // max VRAM address - frame size