bool
SurfaceStreamHostOGL::Lock()
{
mGL->MakeCurrent();
SharedSurface* sharedSurf = mStream->SwapConsumer();
if (!sharedSurf) {
// We don't have a valid surf to show yet.
return false;
}
mGL->MakeCurrent();
mSize = IntSize(sharedSurf->Size().width, sharedSurf->Size().height);
gfxImageSurface* toUpload = nullptr;
switch (sharedSurf->Type()) {
case SharedSurfaceType::GLTextureShare: {
SharedSurface_GLTexture* glTexSurf = SharedSurface_GLTexture::Cast(sharedSurf);
glTexSurf->SetConsumerGL(mGL);
mTextureHandle = glTexSurf->Texture();
mTextureTarget = glTexSurf->TextureTarget();
MOZ_ASSERT(mTextureHandle);
mFormat = sharedSurf->HasAlpha() ? FORMAT_R8G8B8A8
: FORMAT_R8G8B8X8;
break;
}
case SharedSurfaceType::EGLImageShare: {
SharedSurface_EGLImage* eglImageSurf =
SharedSurface_EGLImage::Cast(sharedSurf);
mTextureHandle = eglImageSurf->AcquireConsumerTexture(mGL);
mTextureTarget = eglImageSurf->TextureTarget();
if (!mTextureHandle) {
toUpload = eglImageSurf->GetPixels();
MOZ_ASSERT(toUpload);
} else {
mFormat = sharedSurf->HasAlpha() ? FORMAT_R8G8B8A8
: FORMAT_R8G8B8X8;
}
break;
}
#ifdef XP_MACOSX
case SharedSurfaceType::IOSurface: {
SharedSurface_IOSurface* glTexSurf = SharedSurface_IOSurface::Cast(sharedSurf);
mTextureHandle = glTexSurf->Texture();
mTextureTarget = glTexSurf->TextureTarget();
MOZ_ASSERT(mTextureHandle);
mFormat = sharedSurf->HasAlpha() ? FORMAT_R8G8B8A8
: FORMAT_R8G8B8X8;
break;
}
#endif
case SharedSurfaceType::Basic: {
toUpload = SharedSurface_Basic::Cast(sharedSurf)->GetData();
MOZ_ASSERT(toUpload);
break;
}
default:
MOZ_CRASH("Invalid SharedSurface type.");
}
if (toUpload) {
// mBounds seems to end up as (0,0,0,0) a lot, so don't use it?
nsIntSize size(toUpload->GetSize());
nsIntRect rect(nsIntPoint(0,0), size);
nsIntRegion bounds(rect);
mFormat = mGL->UploadSurfaceToTexture(toUpload,
bounds,
mUploadTexture,
true);
mTextureHandle = mUploadTexture;
mTextureTarget = LOCAL_GL_TEXTURE_2D;
}
MOZ_ASSERT(mTextureHandle);
mGL->fBindTexture(mTextureTarget, mTextureHandle);
mGL->fTexParameteri(mTextureTarget,
LOCAL_GL_TEXTURE_WRAP_S,
LOCAL_GL_CLAMP_TO_EDGE);
mGL->fTexParameteri(mTextureTarget,
LOCAL_GL_TEXTURE_WRAP_T,
LOCAL_GL_CLAMP_TO_EDGE);
return true;
}
void
ShadowCanvasLayerOGL::RenderLayer(int aPreviousFrameBuffer,
const nsIntPoint& aOffset)
{
if (!mTexImage &&
!IsValidSharedTexDescriptor(mFrontBufferDescriptor) &&
!IsValidSurfaceStreamDescriptor(mFrontBufferDescriptor))
{
return;
}
if (mOGLManager->CompositingDisabled()) {
return;
}
mOGLManager->MakeCurrent();
gl()->EmptyTexGarbageBin();
//ScopedBindTexture autoTex(gl());
gfx3DMatrix effectiveTransform = GetEffectiveTransform();
gfxPattern::GraphicsFilter filter = mFilter;
#ifdef ANDROID
// Bug 691354
// Using the LINEAR filter we get unexplained artifacts.
// Use NEAREST when no scaling is required.
gfxMatrix matrix;
bool is2D = GetEffectiveTransform().Is2D(&matrix);
if (is2D && !matrix.HasNonTranslationOrFlip()) {
filter = gfxPattern::FILTER_NEAREST;
}
#endif
SurfaceStream* surfStream = nullptr;
SharedSurface* sharedSurf = nullptr;
if (IsValidSurfaceStreamDescriptor(mFrontBufferDescriptor)) {
const SurfaceStreamDescriptor& streamDesc =
mFrontBufferDescriptor.get_SurfaceStreamDescriptor();
surfStream = SurfaceStream::FromHandle(streamDesc.handle());
MOZ_ASSERT(surfStream);
sharedSurf = surfStream->SwapConsumer();
if (!sharedSurf) {
// We don't have a valid surf to show yet.
return;
}
gfxImageSurface* toUpload = nullptr;
switch (sharedSurf->Type()) {
case SharedSurfaceType::GLTextureShare: {
mCurTexture = SharedSurface_GLTexture::Cast(sharedSurf)->Texture();
MOZ_ASSERT(mCurTexture);
mShaderType = sharedSurf->HasAlpha() ? RGBALayerProgramType
: RGBXLayerProgramType;
break;
}
case SharedSurfaceType::EGLImageShare: {
SharedSurface_EGLImage* eglImageSurf =
SharedSurface_EGLImage::Cast(sharedSurf);
mCurTexture = eglImageSurf->AcquireConsumerTexture(gl());
if (!mCurTexture) {
toUpload = eglImageSurf->GetPixels();
MOZ_ASSERT(toUpload);
} else {
mShaderType = sharedSurf->HasAlpha() ? RGBALayerProgramType
: RGBXLayerProgramType;
}
break;
}
case SharedSurfaceType::Basic: {
toUpload = SharedSurface_Basic::Cast(sharedSurf)->GetData();
MOZ_ASSERT(toUpload);
break;
}
default:
MOZ_NOT_REACHED("Invalid SharedSurface type.");
return;
}
if (toUpload) {
// mBounds seems to end up as (0,0,0,0) a lot, so don't use it?
nsIntSize size(toUpload->GetSize());
nsIntRect rect(nsIntPoint(0,0), size);
nsIntRegion bounds(rect);
mShaderType = gl()->UploadSurfaceToTexture(toUpload,
bounds,
mUploadTexture,
true);
mCurTexture = mUploadTexture;
}
MOZ_ASSERT(mCurTexture);
gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, mCurTexture);
gl()->fTexParameteri(LOCAL_GL_TEXTURE_2D,
LOCAL_GL_TEXTURE_WRAP_S,
LOCAL_GL_CLAMP_TO_EDGE);
gl()->fTexParameteri(LOCAL_GL_TEXTURE_2D,
LOCAL_GL_TEXTURE_WRAP_T,
LOCAL_GL_CLAMP_TO_EDGE);
} else if (mTexImage) {
mShaderType = mTexImage->GetShaderProgramType();
} else {
MOZ_NOT_REACHED("What can we do?");
return;
}
ShaderProgramOGL* program = mOGLManager->GetProgram(mShaderType, GetMaskLayer());
program->Activate();
program->SetLayerTransform(effectiveTransform);
program->SetLayerOpacity(GetEffectiveOpacity());
program->SetRenderOffset(aOffset);
program->SetTextureUnit(0);
program->LoadMask(GetMaskLayer());
if (surfStream) {
MOZ_ASSERT(sharedSurf);
gl()->ApplyFilterToBoundTexture(filter);
program->SetLayerQuadRect(nsIntRect(nsIntPoint(0, 0), sharedSurf->Size()));
mOGLManager->BindAndDrawQuad(program, mNeedsYFlip);
gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, 0);
} else {
// Tiled texture image rendering path
mTexImage->SetFilter(filter);
mTexImage->BeginTileIteration();
if (gl()->CanUploadNonPowerOfTwo()) {
do {
TextureImage::ScopedBindTextureAndApplyFilter texBind(mTexImage, LOCAL_GL_TEXTURE0);
program->SetLayerQuadRect(mTexImage->GetTileRect());
mOGLManager->BindAndDrawQuad(program, mNeedsYFlip); // FIXME flip order of tiles?
} while (mTexImage->NextTile());
} else {
do {
TextureImage::ScopedBindTextureAndApplyFilter texBind(mTexImage, LOCAL_GL_TEXTURE0);
program->SetLayerQuadRect(mTexImage->GetTileRect());
// We can't use BindAndDrawQuad because that always uploads the whole texture from 0.0f -> 1.0f
// in x and y. We use BindAndDrawQuadWithTextureRect to actually draw a subrect of the texture
// We need to reset the origin to 0,0 from the tile rect because the tile originates at 0,0 in the
// actual texture, even though its origin in the composed (tiled) texture is not 0,0
// FIXME: we need to handle mNeedsYFlip, Bug #728625
mOGLManager->BindAndDrawQuadWithTextureRect(program,
nsIntRect(0, 0, mTexImage->GetTileRect().width,
mTexImage->GetTileRect().height),
mTexImage->GetTileRect().Size(),
mTexImage->GetWrapMode(),
mNeedsYFlip);
} while (mTexImage->NextTile());
}
}
}