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https://github.com/mozilla/gecko-dev.git
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cabee82044
Backed out changeset 82320c900699 (bug 801176) Backed out changeset 624fb8512ba5 (bug 801176) Backed out changeset a2a7b1c4dc5b (bug 801176) Backed out changeset e210473d793c (bug 801176) Backed out changeset 0fb279e041e1 (bug 801176) Backed out changeset c090dc98c670 (bug 801176) Backed out changeset fc509e59a0cd (bug 801176) Backed out changeset 134a8c56335a (bug 801176) Backed out changeset 2022afa9aef2 (bug 801176)
111 lines
2.9 KiB
C++
111 lines
2.9 KiB
C++
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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 "GLLibraryEGL.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 RefPtr<GLContext> sSnapshotContext;
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EGLImageImage::EGLImageImage(EGLImage aImage, EGLSync aSync,
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const gfx::IntSize& aSize, const gl::OriginPos& aOrigin,
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bool aOwns)
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: GLImage(ImageFormat::EGLIMAGE),
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mImage(aImage),
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mSync(aSync),
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mSize(aSize),
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mPos(aOrigin),
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mOwns(aOwns)
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{
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}
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EGLImageImage::~EGLImageImage()
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{
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if (!mOwns) {
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return;
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}
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if (mImage) {
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sEGLLibrary.fDestroyImage(EGL_DISPLAY(), mImage);
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mImage = nullptr;
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}
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if (mSync) {
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sEGLLibrary.fDestroySync(EGL_DISPLAY(), mSync);
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mSync = nullptr;
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}
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}
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already_AddRefed<gfx::SourceSurface>
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GLImage::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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sSnapshotContext = GLContextProvider::CreateHeadless(CreateContextFlags::NONE);
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if (!sSnapshotContext) {
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NS_WARNING("Failed to create snapshot GLContext");
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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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gfx::IntSize size = GetSize();
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sSnapshotContext->fTexImage2D(LOCAL_GL_TEXTURE_2D, 0, LOCAL_GL_RGBA,
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size.width, size.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 autoFBForTex(sSnapshotContext, scopedTex.Texture());
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if (!autoFBForTex.IsComplete()) {
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MOZ_CRASH("GFX: ScopedFramebufferForTexture failed.");
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}
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const gl::OriginPos destOrigin = gl::OriginPos::TopLeft;
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if (!sSnapshotContext->BlitHelper()->BlitImageToFramebuffer(this, size,
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autoFBForTex.FB(),
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destOrigin))
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{
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return nullptr;
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}
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RefPtr<gfx::DataSourceSurface> source =
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gfx::Factory::CreateDataSourceSurface(size, 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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ScopedBindFramebuffer bind(sSnapshotContext, autoFBForTex.FB());
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ReadPixelsIntoDataSurface(sSnapshotContext, source);
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return source.forget();
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}
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#ifdef MOZ_WIDGET_ANDROID
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SurfaceTextureImage::SurfaceTextureImage(gl::AndroidSurfaceTexture* aSurfTex,
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const gfx::IntSize& aSize,
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gl::OriginPos aOriginPos)
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: GLImage(ImageFormat::SURFACE_TEXTURE),
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mSurfaceTexture(aSurfTex),
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mSize(aSize),
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mOriginPos(aOriginPos)
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{
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}
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#endif
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} // namespace layers
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} // namespace mozilla
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