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GPU: 

- Revert VRAM readback optimization. Fixes the battle sequence in Golden Sun: Dark Dawn. (Regression from r5208.)
This commit is contained in:
rogerman 2015-06-17 08:18:00 +00:00
parent d3ec1dedfb
commit 54fc839208
2 changed files with 30 additions and 45 deletions
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68
desmume/src/GPU.cpp
View File

@ -185,7 +185,6 @@ GPU* GPU_Init(const GPUCoreID coreID)
gpu->bgPixels = NULL;
gpu->h_win[0] = NULL;
gpu->h_win[1] = NULL;
gpu->VRAMBuffer = NULL;
GPU_Reset(gpu);
GPU_InitFadeColors();
@ -209,7 +208,6 @@ void GPU_Reset(GPU *gpu)
// It would be better if we were more precise about GPU resets.
const GPUCoreID currentCoreID = gpu->core;
u16 *currentTempScanlineBuffer = gpu->tempScanlineBuffer;
u16 *currentVRAMBuffer = gpu->VRAMBuffer;
u8 *currentBGPixels = gpu->bgPixels;
u8 *currentHWin0 = gpu->h_win[0];
u8 *currentHWin1 = gpu->h_win[1];
@ -218,14 +216,12 @@ void GPU_Reset(GPU *gpu)
gpu->core = currentCoreID;
gpu->tempScanlineBuffer = currentTempScanlineBuffer;
gpu->VRAMBuffer = currentVRAMBuffer;
gpu->bgPixels = currentBGPixels;
gpu->h_win[0] = currentHWin0;
gpu->h_win[1] = currentHWin1;
// Clear the separate memory blocks that weren't cleared in the last memset()
if (gpu->tempScanlineBuffer != NULL) memset(gpu->tempScanlineBuffer, 0, _gpuFramebufferWidth * _gpuLargestDstLineCount * sizeof(u16));
if (gpu->VRAMBuffer != NULL) memset(gpu->VRAMBuffer, 0, _gpuFramebufferWidth * _gpuFramebufferHeight * sizeof(u16));
if (gpu->bgPixels != NULL) memset(gpu->bgPixels, 0, _gpuFramebufferWidth * _gpuLargestDstLineCount * 4 * sizeof(u8));
if (gpu->h_win[0] != NULL) memset(gpu->h_win[0], 0, _gpuFramebufferWidth * sizeof(u8));
if (gpu->h_win[1] != NULL) memset(gpu->h_win[1], 0, _gpuFramebufferWidth * sizeof(u8));
@ -279,9 +275,6 @@ void GPU_DeInit(GPU *gpu)
free(gpu->h_win[1]);
gpu->h_win[1] = NULL;
free(gpu->VRAMBuffer);
gpu->VRAMBuffer = NULL;
free(gpu);
gpu = NULL;
}
@ -412,38 +405,8 @@ void GPU_setVideoProp(GPU *gpu, const u32 ctrlBits)
break;
case GPUDisplayMode_VRAM: // Display framebuffer
{
gpu->VRAMaddr = (u16 *)((u8 *)MMU.ARM9_LCD + (gpu->vramBlock * ADDRESS_STEP_128KB));
if (_gpuFramebufferWidth == GPU_FRAMEBUFFER_NATIVE_WIDTH && _gpuFramebufferHeight == GPU_FRAMEBUFFER_NATIVE_HEIGHT)
{
#ifdef LOCAL_BE
for (size_t i = 0; i < GPU_FRAMEBUFFER_NATIVE_WIDTH * GPU_FRAMEBUFFER_NATIVE_HEIGHT; i++)
{
gpu->VRAMBuffer[i] = LE_TO_LOCAL_16(gpu->VRAMaddr[i]);
}
#else
memcpy(gpu->VRAMBuffer, gpu->VRAMaddr, GPU_FRAMEBUFFER_NATIVE_WIDTH * GPU_FRAMEBUFFER_NATIVE_HEIGHT * sizeof(u16));
#endif
}
else
{
for (size_t y = 0; y < GPU_FRAMEBUFFER_NATIVE_HEIGHT; y++)
{
for (size_t x = 0; x < GPU_FRAMEBUFFER_NATIVE_WIDTH; x++)
{
for (size_t l = 0; l < _gpuDstLineCount[y]; l++)
{
for (size_t p = 0; p < _gpuDstPitchCount[x]; p++)
{
gpu->VRAMBuffer[((_gpuDstLineIndex[y] + l) * _gpuFramebufferWidth) + (_gpuDstPitchIndex[x] + p)] = LE_TO_LOCAL_16(gpu->VRAMaddr[(y * GPU_FRAMEBUFFER_NATIVE_WIDTH) + x]);
}
}
}
}
}
break;
}
case GPUDisplayMode_MainMemory: // Display from Main RAM
// nothing to be done here
@ -2044,9 +2007,6 @@ void GPU_SetFramebufferSize(size_t w, size_t h)
MainScreen.gpu->bgPixels = (u8 *)realloc(MainScreen.gpu->bgPixels, w * _gpuLargestDstLineCount * 4 * sizeof(u8)); // yes indeed, this is oversized. map debug tools try to write to it
SubScreen.gpu->bgPixels = (u8 *)realloc(SubScreen.gpu->bgPixels, w * _gpuLargestDstLineCount * 4 * sizeof(u8)); // yes indeed, this is oversized. map debug tools try to write to it
MainScreen.gpu->VRAMBuffer = (u16 *)realloc(MainScreen.gpu->VRAMBuffer, w * h * sizeof(u16));
SubScreen.gpu->VRAMBuffer = (u16 *)realloc(SubScreen.gpu->VRAMBuffer, w * h * sizeof(u16));
const size_t windowBufferSize = w * sizeof(u8);
const u8 *oldWinEmptyPtr = win_empty;
win_empty = (u8 *)realloc(win_empty, windowBufferSize);
@ -2710,7 +2670,33 @@ void GPU_RenderLine(NDS_Screen *screen, const u16 l, bool skip)
break;
case GPUDisplayMode_VRAM: // Display vram framebuffer
memcpy(dstLine, gpu->VRAMBuffer + (dstLineIndex * _gpuFramebufferWidth), _gpuFramebufferWidth * dstLineCount * sizeof(u16));
{
const u16 *src = (u16 *)gpu->VRAMaddr + (l * GPU_FRAMEBUFFER_NATIVE_WIDTH);
#ifdef LOCAL_BE
for (size_t i = 0; i < GPU_FRAMEBUFFER_NATIVE_WIDTH; i++)
{
dstLine[i] = LE_TO_LOCAL_16(src[i]);
}
#else
if (_gpuFramebufferWidth == GPU_FRAMEBUFFER_NATIVE_WIDTH && _gpuFramebufferHeight == GPU_FRAMEBUFFER_NATIVE_HEIGHT)
{
memcpy(dstLine, src, GPU_FRAMEBUFFER_NATIVE_WIDTH * sizeof(u16));
}
else
{
for (size_t x = 0; x < GPU_FRAMEBUFFER_NATIVE_WIDTH; x++)
{
for (size_t line = 0; line < _gpuDstLineCount[l]; line++)
{
for (size_t p = 0; p < _gpuDstPitchCount[x]; p++)
{
dstLine[(line * _gpuFramebufferWidth) + (x + p)] = LE_TO_LOCAL_16(src[x]);
}
}
}
}
#endif
}
break;
case GPUDisplayMode_MainMemory: // Display memory FIFO

1
desmume/src/GPU.h
View File

@ -661,7 +661,6 @@ struct GPU
GPUDisplayMode dispMode;
u8 vramBlock;
u16 *VRAMaddr;
u16 *VRAMBuffer;
//FIFO fifo;