STDMETHODIMP CLAVSubtitleConsumer::ProcessFrame(LAVFrame *pFrame)
{
CheckPointer(m_pProvider, E_FAIL);
HRESULT hr = S_OK;
LPDIRECT3DSURFACE9 pSurface = nullptr;
// Wait for the requested frame
m_evFrame.Wait();
if (m_SubtitleFrame != nullptr) {
int count = 0;
if (FAILED(m_SubtitleFrame->GetBitmapCount(&count))) {
count = 0;
}
if (count == 0) {
SafeRelease(&m_SubtitleFrame);
return S_FALSE;
}
BYTE *data[4] = {0};
ptrdiff_t stride[4] = {0};
LAVPixelFormat format = pFrame->format;
int bpp = pFrame->bpp;
if (pFrame->format == LAVPixFmt_DXVA2) {
// Copy the surface, if required
if (!(pFrame->flags & LAV_FRAME_FLAG_BUFFER_MODIFY)) {
IMediaSample *pOrigSample = (IMediaSample *)pFrame->data[0];
LPDIRECT3DSURFACE9 pOrigSurface = (LPDIRECT3DSURFACE9)pFrame->data[3];
hr = m_pLAVVideo->GetD3DBuffer(pFrame);
if (FAILED(hr)) {
DbgLog((LOG_TRACE, 10, L"CLAVSubtitleConsumer::ProcessFrame: getting a new D3D buffer failed"));
} else {
IMediaSample *pNewSample = (IMediaSample *)pFrame->data[0];
pSurface = (LPDIRECT3DSURFACE9)pFrame->data[3];
IDirect3DDevice9 *pDevice = nullptr;
if (SUCCEEDED(hr = pSurface->GetDevice(&pDevice))) {
hr = pDevice->StretchRect(pOrigSurface, nullptr, pSurface, nullptr, D3DTEXF_NONE);
if (SUCCEEDED(hr)) {
pFrame->flags |= LAV_FRAME_FLAG_BUFFER_MODIFY|LAV_FRAME_FLAG_DXVA_NOADDREF;
pOrigSurface = nullptr;
// Release the surface, we only want to hold a ref on the media buffer
pSurface->Release();
}
SafeRelease(&pDevice);
}
if (FAILED(hr)) {
DbgLog((LOG_TRACE, 10, L"CLAVSubtitleConsumer::ProcessFrame: processing d3d buffer failed, restoring previous buffer"));
pNewSample->Release();
pSurface->Release();
pFrame->data[0] = (BYTE *)pOrigSample;
pFrame->data[3] = (BYTE *)pOrigSurface;
}
}
}
pSurface = (LPDIRECT3DSURFACE9)pFrame->data[3];
D3DSURFACE_DESC surfaceDesc;
pSurface->GetDesc(&surfaceDesc);
D3DLOCKED_RECT LockedRect;
hr = pSurface->LockRect(&LockedRect, nullptr, 0);
if (FAILED(hr)) {
DbgLog((LOG_TRACE, 10, L"pSurface->LockRect failed (hr: %X)", hr));
SafeRelease(&m_SubtitleFrame);
return E_FAIL;
}
data[0] = (BYTE *)LockedRect.pBits;
data[1] = data[0] + (surfaceDesc.Height * LockedRect.Pitch);
stride[0] = LockedRect.Pitch;
stride[1] = LockedRect.Pitch;
format = LAVPixFmt_NV12;
bpp = 8;
} else {
if (!(pFrame->flags & LAV_FRAME_FLAG_BUFFER_MODIFY)) {
CopyLAVFrameInPlace(pFrame);
}
memcpy(&data, &pFrame->data, sizeof(pFrame->data));
memcpy(&stride, &pFrame->stride, sizeof(pFrame->stride));
}
RECT videoRect;
::SetRect(&videoRect, 0, 0, pFrame->width, pFrame->height);
RECT subRect;
m_SubtitleFrame->GetOutputRect(&subRect);
ULONGLONG id;
POINT position;
SIZE size;
const uint8_t *rgbData;
int pitch;
for (int i = 0; i < count; i++) {
if (FAILED(m_SubtitleFrame->GetBitmap(i, &id, &position, &size, (LPCVOID *)&rgbData, &pitch))) {
DbgLog((LOG_TRACE, 10, L"GetBitmap() failed on index %d", i));
break;
}
ProcessSubtitleBitmap(format, bpp, videoRect, data, stride, subRect, position, size, rgbData, pitch);
}
if (pSurface)
pSurface->UnlockRect();
SafeRelease(&m_SubtitleFrame);
return S_OK;
}
return S_FALSE;
}
// draw 3D objects and so on
void RenderScene()
{
/////////////////////////
// 1. draw the scene into the render target
/////////////////////////
// current hardware backbuffer
LPDIRECT3DSURFACE9 pHWBackBuffer = NULL;
gpD3DDevice->GetRenderTarget(0, &pHWBackBuffer);
// draw onto the render target
LPDIRECT3DSURFACE9 pSceneSurface = NULL;
if (SUCCEEDED(gpSceneRenderTarget->GetSurfaceLevel(0, &pSceneSurface)))
{
gpD3DDevice->SetRenderTarget(0, pSceneSurface);
pSceneSurface->Release();
pSceneSurface = NULL;
}
// clear what's drawn in the last frame
gpD3DDevice->Clear(0, NULL, D3DCLEAR_TARGET, 0xFF000000, 1.0f, 0);
// make the view matrix
D3DXMATRIXA16 matView;
D3DXVECTOR3 vEyePt(gWorldCameraPosition.x, gWorldCameraPosition.y, gWorldCameraPosition.z);
D3DXVECTOR3 vLookatPt(0.0f, 0.0f, 0.0f);
D3DXVECTOR3 vUpVec(0.0f, 1.0f, 0.0f);
D3DXMatrixLookAtLH(&matView, &vEyePt, &vLookatPt, &vUpVec);
// projection matrix
D3DXMATRIXA16 matProjection;
D3DXMatrixPerspectiveFovLH(&matProjection, FOV, ASPECT_RATIO, NEAR_PLANE, FAR_PLANE);
// for each frame, we roate 0.4 degree
gRotationY += 0.4f * PI / 180.0f;
if (gRotationY > 2 * PI)
{
gRotationY -= 2 * PI;
}
// world matrix
D3DXMATRIXA16 matWorld;
D3DXMatrixRotationY(&matWorld, gRotationY);
// concatenate world/view/projection matrices
D3DXMATRIXA16 matWorldView;
D3DXMATRIXA16 matWorldViewProjection;
D3DXMatrixMultiply(&matWorldView, &matWorld, &matView);
D3DXMatrixMultiply(&matWorldViewProjection, &matWorldView, &matProjection);
// set shader global variables
gpEnvironmentMappingShader->SetMatrix("gWorldMatrix", &matWorld);
gpEnvironmentMappingShader->SetMatrix("gWorldViewProjectionMatrix", &matWorldViewProjection);
gpEnvironmentMappingShader->SetVector("gWorldLightPosition", &gWorldLightPosition);
gpEnvironmentMappingShader->SetVector("gWorldCameraPosition", &gWorldCameraPosition);
gpEnvironmentMappingShader->SetVector("gLightColor", &gLightColor);
gpEnvironmentMappingShader->SetTexture("DiffuseMap_Tex", gpStoneDM);
gpEnvironmentMappingShader->SetTexture("SpecularMap_Tex", gpStoneSM);
gpEnvironmentMappingShader->SetTexture("NormalMap_Tex", gpStoneNM);
gpEnvironmentMappingShader->SetTexture("EnvironmentMap_Tex", gpSnowENV);
// start a shader
UINT numPasses = 0;
gpEnvironmentMappingShader->Begin(&numPasses, NULL);
{
for (UINT i = 0; i < numPasses; ++i)
{
gpEnvironmentMappingShader->BeginPass(i);
{
// draw a sphere
gpTeapot->DrawSubset(0);
}
gpEnvironmentMappingShader->EndPass();
}
}
gpEnvironmentMappingShader->End();
/////////////////////////
// 2. apply post-processing
/////////////////////////
// use hardware backbuffer
gpD3DDevice->SetRenderTarget(0, pHWBackBuffer);
pHWBackBuffer->Release();
pHWBackBuffer = NULL;
// post process effect to use
LPD3DXEFFECT effectToUse = gpNoEffect;
if (gPostProcessIndex == 1)
{
effectToUse = gpGrayScale;
}
else if (gPostProcessIndex == 2)
{
effectToUse = gpSepia;
}
effectToUse->SetTexture("SceneTexture_Tex", gpSceneRenderTarget);
effectToUse->Begin(&numPasses, NULL);
{
for (UINT i = 0; i < numPasses; ++i)
{
effectToUse->BeginPass(i);
{
// draw a fullscreen quad
gpD3DDevice->SetStreamSource(0, gpFullscreenQuadVB, 0, sizeof(float)* 5);
gpD3DDevice->SetIndices(gpFullscreenQuadIB);
gpD3DDevice->SetVertexDeclaration(gpFullscreenQuadDecl);
gpD3DDevice->DrawIndexedPrimitive(D3DPT_TRIANGLELIST, 0, 0, 6, 0, 2);
}
effectToUse->EndPass();
}
}
effectToUse->End();
}
HRESULT CDxtexDoc::LoadAlphaIntoSurface(CString& strPath, LPDIRECT3DSURFACE9 psurf)
{
HRESULT hr;
D3DSURFACE_DESC sd;
LPDIRECT3DDEVICE9 pd3ddev = PDxtexApp()->Pd3ddev();
LPDIRECT3DTEXTURE9 ptexAlpha;
LPDIRECT3DSURFACE9 psurfAlpha;
LPDIRECT3DSURFACE9 psurfTarget;
psurf->GetDesc(&sd);
// Load the alpha BMP into psurfAlpha, a new A8R8G8B8 surface
hr = D3DXCreateTextureFromFileEx(pd3ddev, strPath, sd.Width, sd.Height, 1, 0,
D3DFMT_A8R8G8B8, D3DPOOL_MANAGED, D3DX_DEFAULT,
D3DX_DEFAULT, 0, NULL, NULL, &ptexAlpha);
hr = ptexAlpha->GetSurfaceLevel(0, &psurfAlpha);
// Copy the target surface into an A8R8G8B8 surface
hr = pd3ddev->CreateOffscreenPlainSurface(sd.Width, sd.Height, D3DFMT_A8R8G8B8, D3DPOOL_SCRATCH, &psurfTarget, NULL);
hr = D3DXLoadSurfaceFromSurface(psurfTarget, NULL, NULL, psurf, NULL, NULL,
D3DX_DEFAULT, 0);
// Fill in the alpha channels of psurfTarget based on the blue channel of psurfAlpha
D3DLOCKED_RECT lrSrc;
D3DLOCKED_RECT lrDest;
hr = psurfAlpha->LockRect(&lrSrc, NULL, D3DLOCK_READONLY);
hr = psurfTarget->LockRect(&lrDest, NULL, 0);
DWORD xp;
DWORD yp;
DWORD* pdwRowSrc = (DWORD*)lrSrc.pBits;
DWORD* pdwRowDest = (DWORD*)lrDest.pBits;
DWORD* pdwSrc;
DWORD* pdwDest;
DWORD dwAlpha;
LONG dataBytesPerRow = 4 * sd.Width;
for (yp = 0; yp < sd.Height; yp++)
{
pdwSrc = pdwRowSrc;
pdwDest = pdwRowDest;
for (xp = 0; xp < sd.Width; xp++)
{
dwAlpha = *pdwSrc << 24;
*pdwDest &= 0x00ffffff;
*pdwDest |= dwAlpha;
pdwSrc++;
pdwDest++;
}
pdwRowSrc += lrSrc.Pitch / 4;
pdwRowDest += lrDest.Pitch / 4;
}
psurfAlpha->UnlockRect();
psurfTarget->UnlockRect();
// Copy psurfTarget back into real surface
hr = D3DXLoadSurfaceFromSurface(psurf, NULL, NULL, psurfTarget, NULL, NULL,
D3DX_DEFAULT, 0);
// Release allocated interfaces
ReleasePpo(&psurfTarget);
ReleasePpo(&psurfAlpha);
ReleasePpo(&ptexAlpha);
return S_OK;
}