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https://github.com/encounter/engine.git
synced 2026-03-30 11:09:55 -07:00
Chinmay Garde
110 lines
2.8 KiB
C++
110 lines
2.8 KiB
C++
// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <utility>
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#include "flutter/shell/platform/android/android_surface_gl.h"
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#include "lib/ftl/logging.h"
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#include "lib/ftl/memory/ref_ptr.h"
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namespace shell {
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static ftl::RefPtr<AndroidContextGL> GlobalResourceLoadingContext(
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PlatformView::SurfaceConfig offscreen_config) {
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// AndroidSurfaceGL instances are only ever created on the platform thread. So
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// there is no need to lock here.
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static ftl::RefPtr<AndroidContextGL> global_context;
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if (global_context) {
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return global_context;
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}
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auto environment = ftl::MakeRefCounted<AndroidEnvironmentGL>();
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if (!environment->IsValid()) {
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return nullptr;
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}
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// TODO(chinmaygarde): We should check that the configurations are stable
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// across multiple invocations.
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auto context =
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ftl::MakeRefCounted<AndroidContextGL>(environment, offscreen_config);
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if (!context->IsValid()) {
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return nullptr;
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}
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global_context = context;
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return global_context;
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}
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AndroidSurfaceGL::AndroidSurfaceGL(AndroidNativeWindow window,
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PlatformView::SurfaceConfig onscreen_config,
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PlatformView::SurfaceConfig offscreen_config)
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: valid_(false) {
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// Acquire the offscreen context.
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offscreen_context_ = GlobalResourceLoadingContext(offscreen_config);
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if (!offscreen_context_ || !offscreen_context_->IsValid()) {
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return;
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}
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// Create the onscreen context.
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onscreen_context_ = ftl::MakeRefCounted<AndroidContextGL>(
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offscreen_context_->Environment(), std::move(window), onscreen_config,
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offscreen_context_.get() /* sharegroup */);
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if (!onscreen_context_->IsValid()) {
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return;
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}
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// All done.
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valid_ = true;
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}
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AndroidSurfaceGL::~AndroidSurfaceGL() = default;
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bool AndroidSurfaceGL::IsValid() const {
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return valid_;
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}
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SkISize AndroidSurfaceGL::OnScreenSurfaceSize() const {
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FTL_DCHECK(valid_);
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return onscreen_context_->GetSize();
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}
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bool AndroidSurfaceGL::OnScreenSurfaceResize(const SkISize& size) const {
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FTL_DCHECK(valid_);
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return onscreen_context_->Resize(size);
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}
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bool AndroidSurfaceGL::GLOffscreenContextMakeCurrent() {
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FTL_DCHECK(valid_);
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return offscreen_context_->MakeCurrent();
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}
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bool AndroidSurfaceGL::GLContextMakeCurrent() {
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FTL_DCHECK(valid_);
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return onscreen_context_->MakeCurrent();
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}
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bool AndroidSurfaceGL::GLContextClearCurrent() {
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FTL_DCHECK(valid_);
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return onscreen_context_->ClearCurrent();
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}
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bool AndroidSurfaceGL::GLContextPresent() {
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FTL_DCHECK(valid_);
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return onscreen_context_->SwapBuffers();
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}
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intptr_t AndroidSurfaceGL::GLContextFBO() const {
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FTL_DCHECK(valid_);
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// The default window bound framebuffer on Android.
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return 0;
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}
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} // namespace shell
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