| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "flutter/shell/platform/android/android_surface_gl.h" |
| |
| #include <utility> |
| |
| #include "flutter/fml/logging.h" |
| #include "flutter/fml/memory/ref_ptr.h" |
| |
| namespace flutter { |
| |
| static fml::RefPtr<AndroidContextGL> CreateResourceLoadingContext() { |
| auto environment = fml::MakeRefCounted<AndroidEnvironmentGL>(); |
| if (!environment->IsValid()) { |
| return nullptr; |
| } |
| |
| auto context = fml::MakeRefCounted<AndroidContextGL>(environment); |
| if (!context->IsValid()) { |
| return nullptr; |
| } |
| |
| return context; |
| } |
| |
| AndroidSurfaceGL::AndroidSurfaceGL() { |
| // Acquire the offscreen context. |
| offscreen_context_ = CreateResourceLoadingContext(); |
| |
| if (!offscreen_context_ || !offscreen_context_->IsValid()) { |
| offscreen_context_ = nullptr; |
| } |
| } |
| |
| AndroidSurfaceGL::~AndroidSurfaceGL() = default; |
| |
| bool AndroidSurfaceGL::IsOffscreenContextValid() const { |
| return offscreen_context_ && offscreen_context_->IsValid(); |
| } |
| |
| void AndroidSurfaceGL::TeardownOnScreenContext() { |
| if (onscreen_context_) { |
| onscreen_context_->ClearCurrent(); |
| } |
| onscreen_context_ = nullptr; |
| } |
| |
| bool AndroidSurfaceGL::IsValid() const { |
| if (!onscreen_context_ || !offscreen_context_) { |
| return false; |
| } |
| |
| return onscreen_context_->IsValid() && offscreen_context_->IsValid(); |
| } |
| |
| std::unique_ptr<Surface> AndroidSurfaceGL::CreateGPUSurface() { |
| auto surface = std::make_unique<GPUSurfaceGL>(this, true); |
| return surface->IsValid() ? std::move(surface) : nullptr; |
| } |
| |
| bool AndroidSurfaceGL::OnScreenSurfaceResize(const SkISize& size) const { |
| FML_DCHECK(onscreen_context_ && onscreen_context_->IsValid()); |
| return onscreen_context_->Resize(size); |
| } |
| |
| bool AndroidSurfaceGL::ResourceContextMakeCurrent() { |
| FML_DCHECK(offscreen_context_ && offscreen_context_->IsValid()); |
| return offscreen_context_->MakeCurrent(); |
| } |
| |
| bool AndroidSurfaceGL::ResourceContextClearCurrent() { |
| FML_DCHECK(offscreen_context_ && offscreen_context_->IsValid()); |
| return offscreen_context_->ClearCurrent(); |
| } |
| |
| bool AndroidSurfaceGL::SetNativeWindow( |
| fml::RefPtr<AndroidNativeWindow> window) { |
| // In any case, we want to get rid of our current onscreen context. |
| onscreen_context_ = nullptr; |
| |
| // If the offscreen context has not been setup, we dont have the sharegroup. |
| // So bail. |
| if (!offscreen_context_ || !offscreen_context_->IsValid()) { |
| return false; |
| } |
| |
| // Create the onscreen context. |
| onscreen_context_ = fml::MakeRefCounted<AndroidContextGL>( |
| offscreen_context_->Environment(), |
| offscreen_context_.get() /* sharegroup */); |
| |
| if (!onscreen_context_->IsValid()) { |
| onscreen_context_ = nullptr; |
| return false; |
| } |
| |
| if (!onscreen_context_->CreateWindowSurface(std::move(window))) { |
| onscreen_context_ = nullptr; |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool AndroidSurfaceGL::GLContextMakeCurrent() { |
| FML_DCHECK(onscreen_context_ && onscreen_context_->IsValid()); |
| return onscreen_context_->MakeCurrent(); |
| } |
| |
| bool AndroidSurfaceGL::GLContextClearCurrent() { |
| FML_DCHECK(onscreen_context_ && onscreen_context_->IsValid()); |
| return onscreen_context_->ClearCurrent(); |
| } |
| |
| bool AndroidSurfaceGL::GLContextPresent() { |
| FML_DCHECK(onscreen_context_ && onscreen_context_->IsValid()); |
| return onscreen_context_->SwapBuffers(); |
| } |
| |
| intptr_t AndroidSurfaceGL::GLContextFBO() const { |
| FML_DCHECK(onscreen_context_ && onscreen_context_->IsValid()); |
| // The default window bound framebuffer on Android. |
| return 0; |
| } |
| |
| // |GPUSurfaceGLDelegate| |
| ExternalViewEmbedder* AndroidSurfaceGL::GetExternalViewEmbedder() { |
| return nullptr; |
| } |
| |
| } // namespace flutter |