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Implemented sceMpegAvcConvertToYuv420.

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This commit is contained in:
shenweip 2013-09-18 14:05:09 +08:00
parent 8c6bd4ef51
commit a62e9f15e9
3 changed files with 73 additions and 2 deletions
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70
Core/HLE/sceMpeg.cpp
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@ -1353,10 +1353,76 @@ u32 sceMpegAvcResourceInit(u32 mpeg)
return 0;
}
u32 convertARGBToYCbCr(u32 abgr) {
//see http://en.wikipedia.org/wiki/Yuv#Y.27UV444_to_RGB888_conversion for mor information.
u8 r = (abgr >> 16) & 0xFF;
u8 g = (abgr >> 8) & 0xFF;
u8 b = (abgr >> 0) & 0xFF;
int y = 0.299f * r + 0.587f * g + 0.114f * b + 0;
int cb = -0.169f * r - 0.331f * g + 0.499f * b + 128.0f;
int cr = 0.499f * r - 0.418f * g - 0.0813f * b + 128.0f;
int sceMpegAvcConvertToYuv420(u32 mpeg, u32 bufferOutput, u32 unknown1, int unknown2)
// check yCbCr value
if ( y > 0xFF) y = 0xFF; if ( y < 0) y = 0;
if (cb > 0xFF) cb = 0xFF; if (cb < 0) cb = 0;
if (cr > 0xFF) cr = 0xFF; if (cr < 0) cr = 0;
return (y << 16) | (cb << 8) | cr;
}
int hleMpegAvcConvertToYuv420(const void *data, u32 bufferOutputAddr, int width, int height) {
u32 *imageBuffer = (u32*)data;
int sizeY = width * height;
int sizeCb = sizeY >> 2;
u8 *Y = (u8*)Memory::GetPointer(bufferOutputAddr);
u8 *Cb = Y + sizeY;
u8 *Cr = Cb + sizeCb;
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; x += 4) {
u32 abgr0 = imageBuffer[x + 0];
u32 abgr1 = imageBuffer[x + 1];
u32 abgr2 = imageBuffer[x + 2];
u32 abgr3 = imageBuffer[x + 3];
u32 yCbCr0 = convertARGBToYCbCr(abgr0);
u32 yCbCr1 = convertARGBToYCbCr(abgr1);
u32 yCbCr2 = convertARGBToYCbCr(abgr2);
u32 yCbCr3 = convertARGBToYCbCr(abgr3);
Y[x + 0] = (yCbCr0 >> 16) & 0xFF;
Y[x + 1] = (yCbCr1 >> 16) & 0xFF;
Y[x + 2] = (yCbCr2 >> 16) & 0xFF;
Y[x + 3] = (yCbCr3 >> 16) & 0xFF;
*Cb++ = (yCbCr0 >> 8) & 0xFF;
*Cr++ = yCbCr0 & 0xFF;
}
imageBuffer += width;
Y += width ;
}
return (width << 16) | height;
}
int sceMpegAvcConvertToYuv420(u32 mpeg, u32 bufferOutputAddr, u32 unknown1, int unknown2)
{
ERROR_LOG(ME, "UNIMPL sceMpegAvcConvertToYuv420(%08x, %08x, %08x, %08x)", mpeg, bufferOutput, unknown1, unknown2);
if (!Memory::IsValidAddress(bufferOutputAddr)) {
WARN_LOG(ME, "sceMpegAvcConvertToYuv420(%08x, %08x, %08x, %08x)", mpeg, bufferOutputAddr, unknown1, unknown2);
return 0;
}
MpegContext *ctx = getMpegCtx(mpeg);
if (!ctx) {
WARN_LOG(ME, "sceMpegAvcConvertToYuv420(%08x, %08x, %08x, %08x)", mpeg, bufferOutputAddr, unknown1, unknown2);
return 0;
}
DEBUG_LOG(ME, "sceMpegAvcConvertToYuv420(%08x, %08x, %08x, %08x)", mpeg, bufferOutputAddr, unknown1, unknown2);
const u8 *data = ctx->mediaengine->getFrameImage();
int width = ctx->mediaengine->m_desWidth;
int height = ctx->mediaengine->m_desHeight;
if (data) {
hleMpegAvcConvertToYuv420(data, bufferOutputAddr, width, height);
}
return 0;
}

4
Core/HW/MediaEngine.cpp
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@ -586,6 +586,10 @@ int MediaEngine::writeVideoImageWithRange(u8* buffer, int frameWidth, int videoP
return 0;
}
u8 *MediaEngine::getFrameImage() {
return m_pFrameRGB->data[0];
}
int MediaEngine::getRemainSize() {
if (!m_pdata)
return 0;

1
Core/HW/MediaEngine.h
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@ -59,6 +59,7 @@ public:
void setVideoStream(int streamNum) { m_videoStream = streamNum; }
void setAudioStream(int streamNum) { m_audioStream = streamNum; }
u8 *getFrameImage();
int getRemainSize();
bool stepVideo(int videoPixelMode);