本文整理汇总了C++中SharedSurface::APIType方法的典型用法代码示例。如果您正苦于以下问题：C++ SharedSurface::APIType方法的具体用法？C++ SharedSurface::APIType怎么用？C++ SharedSurface::APIType使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类SharedSurface的用法示例。
在下文中一共展示了SharedSurface::APIType方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: readSize
void
CopyableCanvasLayer::UpdateSurface(gfxASurface* aDestSurface, Layer* aMaskLayer)
{
if (!IsDirty())
return;
Painted();
if (mDrawTarget) {
mDrawTarget->Flush();
mSurface = gfxPlatform::GetPlatform()->GetThebesSurfaceForDrawTarget(mDrawTarget);
}
if (!mGLContext && aDestSurface) {
nsRefPtr<gfxContext> tmpCtx = new gfxContext(aDestSurface);
tmpCtx->SetOperator(gfxContext::OPERATOR_SOURCE);
CopyableCanvasLayer::PaintWithOpacity(tmpCtx, 1.0f, aMaskLayer);
return;
}
if (mGLContext) {
if (aDestSurface && aDestSurface->GetType() != gfxASurface::SurfaceTypeImage) {
MOZ_ASSERT(false, "Destination surface must be ImageSurface type.");
return;
}
nsRefPtr<gfxImageSurface> readSurf;
nsRefPtr<gfxImageSurface> resultSurf;
SharedSurface* sharedSurf = mGLContext->RequestFrame();
if (!sharedSurf) {
NS_WARNING("Null frame received.");
return;
}
gfxIntSize readSize(sharedSurf->Size());
gfxImageFormat format = (GetContentFlags() & CONTENT_OPAQUE)
? gfxASurface::ImageFormatRGB24
: gfxASurface::ImageFormatARGB32;
if (aDestSurface) {
resultSurf = static_cast<gfxImageSurface*>(aDestSurface);
} else {
resultSurf = GetTempSurface(readSize, format);
}
MOZ_ASSERT(resultSurf);
if (resultSurf->CairoStatus() != 0) {
MOZ_ASSERT(false, "Bad resultSurf->CairoStatus().");
return;
}
MOZ_ASSERT(sharedSurf->APIType() == APITypeT::OpenGL);
SharedSurface_GL* surfGL = SharedSurface_GL::Cast(sharedSurf);
if (surfGL->Type() == SharedSurfaceType::Basic) {
SharedSurface_Basic* sharedSurf_Basic = SharedSurface_Basic::Cast(surfGL);
readSurf = sharedSurf_Basic->GetData();
} else {
if (resultSurf->Format() == format &&
resultSurf->GetSize() == readSize)
{
readSurf = resultSurf;
} else {
readSurf = GetTempSurface(readSize, format);
}
// Readback handles Flush/MarkDirty.
mGLContext->Screen()->Readback(surfGL, readSurf);
}
MOZ_ASSERT(readSurf);
bool needsPremult = surfGL->HasAlpha() && !mIsGLAlphaPremult;
if (needsPremult) {
gfxImageSurface* sizedReadSurf = nullptr;
if (readSurf->Format() == resultSurf->Format() &&
readSurf->GetSize() == resultSurf->GetSize())
{
sizedReadSurf = readSurf;
} else {
readSurf->Flush();
nsRefPtr<gfxContext> ctx = new gfxContext(resultSurf);
ctx->SetOperator(gfxContext::OPERATOR_SOURCE);
ctx->SetSource(readSurf);
ctx->Paint();
sizedReadSurf = resultSurf;
}
MOZ_ASSERT(sizedReadSurf);
readSurf->Flush();
resultSurf->Flush();
gfxUtils::PremultiplyImageSurface(readSurf, resultSurf);
resultSurf->MarkDirty();
} else if (resultSurf != readSurf) {
// Didn't need premult, but we do need to blit to resultSurf
readSurf->Flush();
nsRefPtr<gfxContext> ctx = new gfxContext(resultSurf);
ctx->SetOperator(gfxContext::OPERATOR_SOURCE);
ctx->SetSource(readSurf);
ctx->Paint();
}
//.........这里部分代码省略.........
示例2: readSize
void
CopyableCanvasLayer::UpdateSurface(gfxASurface* aDestSurface, Layer* aMaskLayer)
{
if (!IsDirty())
return;
Painted();
if (mDrawTarget) {
mDrawTarget->Flush();
if (mDrawTarget->GetType() == BACKEND_COREGRAPHICS_ACCELERATED) {
// We have an accelerated CG context which has changed, unlike a bitmap surface
// where we can alias the bits on initializing the mDrawTarget, we need to readback
// and copy the accelerated surface each frame. We want to support this for quick
// thumbnail but if we're going to be doing this every frame it likely is better
// to use a non accelerated (bitmap) canvas.
mSurface = gfxPlatform::GetPlatform()->GetThebesSurfaceForDrawTarget(mDrawTarget);
}
}
if (!mGLContext && aDestSurface) {
nsRefPtr<gfxContext> tmpCtx = new gfxContext(aDestSurface);
tmpCtx->SetOperator(gfxContext::OPERATOR_SOURCE);
CopyableCanvasLayer::PaintWithOpacity(tmpCtx, 1.0f, aMaskLayer);
return;
}
if (mGLContext) {
if (aDestSurface && aDestSurface->GetType() != gfxASurface::SurfaceTypeImage) {
MOZ_ASSERT(false, "Destination surface must be ImageSurface type.");
return;
}
nsRefPtr<gfxImageSurface> readSurf;
nsRefPtr<gfxImageSurface> resultSurf;
SharedSurface* sharedSurf = mGLContext->RequestFrame();
if (!sharedSurf) {
NS_WARNING("Null frame received.");
return;
}
gfxIntSize readSize(sharedSurf->Size());
gfxImageFormat format = (GetContentFlags() & CONTENT_OPAQUE)
? gfxASurface::ImageFormatRGB24
: gfxASurface::ImageFormatARGB32;
if (aDestSurface) {
resultSurf = static_cast<gfxImageSurface*>(aDestSurface);
} else {
resultSurf = GetTempSurface(readSize, format);
}
MOZ_ASSERT(resultSurf);
if (resultSurf->CairoStatus() != 0) {
MOZ_ASSERT(false, "Bad resultSurf->CairoStatus().");
return;
}
MOZ_ASSERT(sharedSurf->APIType() == APITypeT::OpenGL);
SharedSurface_GL* surfGL = SharedSurface_GL::Cast(sharedSurf);
if (surfGL->Type() == SharedSurfaceType::Basic) {
SharedSurface_Basic* sharedSurf_Basic = SharedSurface_Basic::Cast(surfGL);
readSurf = sharedSurf_Basic->GetData();
} else {
if (resultSurf->Format() == format &&
resultSurf->GetSize() == readSize)
{
readSurf = resultSurf;
} else {
readSurf = GetTempSurface(readSize, format);
}
// Readback handles Flush/MarkDirty.
mGLContext->Screen()->Readback(surfGL, readSurf);
}
MOZ_ASSERT(readSurf);
bool needsPremult = surfGL->HasAlpha() && !mIsGLAlphaPremult;
if (needsPremult) {
gfxImageSurface* sizedReadSurf = nullptr;
if (readSurf->Format() == resultSurf->Format() &&
readSurf->GetSize() == resultSurf->GetSize())
{
sizedReadSurf = readSurf;
} else {
readSurf->Flush();
nsRefPtr<gfxContext> ctx = new gfxContext(resultSurf);
ctx->SetOperator(gfxContext::OPERATOR_SOURCE);
ctx->SetSource(readSurf);
ctx->Paint();
sizedReadSurf = resultSurf;
}
MOZ_ASSERT(sizedReadSurf);
readSurf->Flush();
resultSurf->Flush();
gfxUtils::PremultiplyImageSurface(readSurf, resultSurf);
resultSurf->MarkDirty();
} else if (resultSurf != readSurf) {
//.........这里部分代码省略.........