зеркало из https://github.com/mozilla/gecko-dev.git
64 строки
1.7 KiB
C++
64 строки
1.7 KiB
C++
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#ifdef MOZ_WIDGET_ANDROID
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#include "GLImages.h"
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#include "GLContext.h"
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#include "GLContextProvider.h"
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#include "ScopedGLHelpers.h"
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#include "GLImages.h"
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#include "GLBlitHelper.h"
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#include "GLReadTexImageHelper.h"
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#include "AndroidSurfaceTexture.h"
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using namespace mozilla;
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using namespace mozilla::gl;
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namespace mozilla {
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namespace layers {
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static nsRefPtr<GLContext> sSnapshotContext;
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TemporaryRef<gfx::SourceSurface>
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SurfaceTextureImage::GetAsSourceSurface()
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{
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MOZ_ASSERT(NS_IsMainThread(), "Should be on the main thread");
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if (!sSnapshotContext) {
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SurfaceCaps caps = SurfaceCaps::ForRGBA();
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sSnapshotContext = GLContextProvider::CreateOffscreen(gfxIntSize(16, 16), caps);
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if (!sSnapshotContext) {
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return nullptr;
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}
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}
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sSnapshotContext->MakeCurrent();
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ScopedTexture scopedTex(sSnapshotContext);
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ScopedBindTexture boundTex(sSnapshotContext, scopedTex.Texture());
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sSnapshotContext->fTexImage2D(LOCAL_GL_TEXTURE_2D, 0, LOCAL_GL_RGBA,
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mData.mSize.width, mData.mSize.height, 0,
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LOCAL_GL_RGBA,
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LOCAL_GL_UNSIGNED_BYTE,
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nullptr);
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ScopedFramebufferForTexture fb(sSnapshotContext, scopedTex.Texture());
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GLBlitHelper helper(sSnapshotContext);
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helper.BlitImageToFramebuffer(this, mData.mSize, fb.FB(), false);
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ScopedBindFramebuffer bind(sSnapshotContext, fb.FB());
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RefPtr<gfx::DataSourceSurface> source =
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gfx::Factory::CreateDataSourceSurface(mData.mSize, gfx::SurfaceFormat::B8G8R8A8);
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if (NS_WARN_IF(!source)) {
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return nullptr;
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}
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ReadPixelsIntoDataSurface(sSnapshotContext, source);
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return source.forget();
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}
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} // layers
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} // mozilla
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#endif
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