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c57aff1800
This is part of a larger effort to expose the difference between GrDirectContext, which runs on the GPU thread and can directly perform operations like uploading textures, and GrRecordingContext, which can only queue up work to be delivered to the GrDirectContext later.
116 lines
3.5 KiB
C++
116 lines
3.5 KiB
C++
// Copyright 2013 The Flutter 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 "flutter/shell/platform/embedder/embedder_surface_gl.h"
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#include "flutter/shell/common/shell_io_manager.h"
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namespace flutter {
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EmbedderSurfaceGL::EmbedderSurfaceGL(
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GLDispatchTable gl_dispatch_table,
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bool fbo_reset_after_present,
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std::unique_ptr<EmbedderExternalViewEmbedder> external_view_embedder)
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: gl_dispatch_table_(gl_dispatch_table),
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fbo_reset_after_present_(fbo_reset_after_present),
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external_view_embedder_(std::move(external_view_embedder)) {
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// Make sure all required members of the dispatch table are checked.
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if (!gl_dispatch_table_.gl_make_current_callback ||
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!gl_dispatch_table_.gl_clear_current_callback ||
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!gl_dispatch_table_.gl_present_callback ||
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!gl_dispatch_table_.gl_fbo_callback) {
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return;
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}
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valid_ = true;
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}
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EmbedderSurfaceGL::~EmbedderSurfaceGL() = default;
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// |EmbedderSurface|
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bool EmbedderSurfaceGL::IsValid() const {
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return valid_;
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}
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// |GPUSurfaceGLDelegate|
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std::unique_ptr<GLContextResult> EmbedderSurfaceGL::GLContextMakeCurrent() {
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return std::make_unique<GLContextDefaultResult>(
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gl_dispatch_table_.gl_make_current_callback());
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}
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// |GPUSurfaceGLDelegate|
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bool EmbedderSurfaceGL::GLContextClearCurrent() {
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return gl_dispatch_table_.gl_clear_current_callback();
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}
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// |GPUSurfaceGLDelegate|
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bool EmbedderSurfaceGL::GLContextPresent() {
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return gl_dispatch_table_.gl_present_callback();
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}
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// |GPUSurfaceGLDelegate|
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intptr_t EmbedderSurfaceGL::GLContextFBO() const {
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return gl_dispatch_table_.gl_fbo_callback();
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}
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// |GPUSurfaceGLDelegate|
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bool EmbedderSurfaceGL::GLContextFBOResetAfterPresent() const {
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return fbo_reset_after_present_;
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}
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// |GPUSurfaceGLDelegate|
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SkMatrix EmbedderSurfaceGL::GLContextSurfaceTransformation() const {
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auto callback = gl_dispatch_table_.gl_surface_transformation_callback;
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if (!callback) {
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SkMatrix matrix;
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matrix.setIdentity();
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return matrix;
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}
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return callback();
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}
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// |GPUSurfaceGLDelegate|
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ExternalViewEmbedder* EmbedderSurfaceGL::GetExternalViewEmbedder() {
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return external_view_embedder_.get();
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}
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// |GPUSurfaceGLDelegate|
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EmbedderSurfaceGL::GLProcResolver EmbedderSurfaceGL::GetGLProcResolver() const {
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return gl_dispatch_table_.gl_proc_resolver;
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}
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// |EmbedderSurface|
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std::unique_ptr<Surface> EmbedderSurfaceGL::CreateGPUSurface() {
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const bool render_to_surface = !external_view_embedder_;
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return std::make_unique<GPUSurfaceGL>(this, // GPU surface GL delegate
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render_to_surface // render to surface
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);
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}
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// |EmbedderSurface|
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sk_sp<GrDirectContext> EmbedderSurfaceGL::CreateResourceContext() const {
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auto callback = gl_dispatch_table_.gl_make_resource_current_callback;
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if (callback && callback()) {
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if (auto context = ShellIOManager::CreateCompatibleResourceLoadingContext(
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GrBackend::kOpenGL_GrBackend, GetGLInterface())) {
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return context;
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} else {
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FML_LOG(ERROR)
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<< "Internal error: Resource context available but could not create "
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"a compatible Skia context.";
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return nullptr;
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}
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}
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// The callback was not available or failed.
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FML_LOG(ERROR)
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<< "Could not create a resource context for async texture uploads. "
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"Expect degraded performance. Set a valid make_resource_current "
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"callback on FlutterOpenGLRendererConfig.";
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return nullptr;
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}
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} // namespace flutter
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