#include "GLImages.h" #include "GLContext.h" #include "GLContextProvider.h" #include "ScopedGLHelpers.h" #include "GLImages.h" #include "GLBlitHelper.h" #include "GLReadTexImageHelper.h" #include "GLLibraryEGL.h" using namespace mozilla; using namespace mozilla::gl; namespace mozilla { namespace layers { static RefPtr<GLContext> sSnapshotContext; EGLImageImage::EGLImageImage(EGLImage aImage, EGLSync aSync, const gfx::IntSize& aSize, const gl::OriginPos& aOrigin, bool aOwns) : GLImage(ImageFormat::EGLIMAGE), mImage(aImage), mSync(aSync), mSize(aSize), mPos(aOrigin), mOwns(aOwns) { } EGLImageImage::~EGLImageImage() { if (!mOwns) { return; } if (mImage) { sEGLLibrary.fDestroyImage(EGL_DISPLAY(), mImage); mImage = nullptr; } if (mSync) { sEGLLibrary.fDestroySync(EGL_DISPLAY(), mSync); mSync = nullptr; } } already_AddRefed<gfx::SourceSurface> GLImage::GetAsSourceSurface() { MOZ_ASSERT(NS_IsMainThread(), "Should be on the main thread"); if (!sSnapshotContext) { nsCString discardFailureId; sSnapshotContext = GLContextProvider::CreateHeadless(CreateContextFlags::NONE, &discardFailureId); if (!sSnapshotContext) { NS_WARNING("Failed to create snapshot GLContext"); return nullptr; } } sSnapshotContext->MakeCurrent(); ScopedTexture scopedTex(sSnapshotContext); ScopedBindTexture boundTex(sSnapshotContext, scopedTex.Texture()); gfx::IntSize size = GetSize(); sSnapshotContext->fTexImage2D(LOCAL_GL_TEXTURE_2D, 0, LOCAL_GL_RGBA, size.width, size.height, 0, LOCAL_GL_RGBA, LOCAL_GL_UNSIGNED_BYTE, nullptr); ScopedFramebufferForTexture autoFBForTex(sSnapshotContext, scopedTex.Texture()); if (!autoFBForTex.IsComplete()) { gfxCriticalError() << "GetAsSourceSurface: ScopedFramebufferForTexture failed."; return nullptr; } const gl::OriginPos destOrigin = gl::OriginPos::TopLeft; if (!sSnapshotContext->BlitHelper()->BlitImageToFramebuffer(this, size, autoFBForTex.FB(), destOrigin)) { return nullptr; } RefPtr<gfx::DataSourceSurface> source = gfx::Factory::CreateDataSourceSurface(size, gfx::SurfaceFormat::B8G8R8A8); if (NS_WARN_IF(!source)) { return nullptr; } ScopedBindFramebuffer bind(sSnapshotContext, autoFBForTex.FB()); ReadPixelsIntoDataSurface(sSnapshotContext, source); return source.forget(); } #ifdef MOZ_WIDGET_ANDROID SurfaceTextureImage::SurfaceTextureImage(gl::AndroidSurfaceTexture* aSurfTex, const gfx::IntSize& aSize, gl::OriginPos aOriginPos) : GLImage(ImageFormat::SURFACE_TEXTURE), mSurfaceTexture(aSurfTex), mSize(aSize), mOriginPos(aOriginPos) { } #endif } // namespace layers } // namespace mozilla