| // Copyright 2017 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/vr/native_gl_surface_provider.h" |
| |
| #include "third_party/skia/include/gpu/GrDirectContext.h" |
| #include "third_party/skia/include/gpu/ganesh/gl/GrGLDirectContext.h" |
| #include "ui/gfx/geometry/size.h" |
| #include "ui/gl/gl_implementation.h" |
| #include "ui/gl/gl_version_info.h" |
| #include "ui/gl/init/create_gr_gl_interface.h" |
| |
| namespace vr { |
| |
| NativeGlSurfaceProvider::NativeGlSurfaceProvider() { |
| const char* version_str = |
| reinterpret_cast<const char*>(glGetString(GL_VERSION)); |
| const char* renderer_str = |
| reinterpret_cast<const char*>(glGetString(GL_RENDERER)); |
| std::string extensions_string(gl::GetGLExtensionsFromCurrentContext()); |
| gfx::ExtensionSet extensions(gfx::MakeExtensionSet(extensions_string)); |
| gl::GLVersionInfo gl_version_info(version_str, renderer_str, extensions); |
| sk_sp<const GrGLInterface> gr_interface = |
| gl::init::CreateGrGLInterface(gl_version_info); |
| DCHECK(gr_interface.get()); |
| gr_context_ = GrDirectContexts::MakeGL(std::move(gr_interface)); |
| DCHECK(gr_context_.get()); |
| } |
| |
| NativeGlSurfaceProvider::~NativeGlSurfaceProvider() = default; |
| |
| std::unique_ptr<SkiaSurfaceProvider::Texture> |
| NativeGlSurfaceProvider::CreateTextureWithSkia( |
| const gfx::Size& size, |
| base::FunctionRef<void(SkCanvas*)> paint) { |
| // We need to store and restore previous FBO after skia draw. |
| GLint prev_fbo = 0; |
| glGetIntegerv(GL_FRAMEBUFFER_BINDING, &prev_fbo); |
| |
| auto texture = CreateTextureWithSkiaImpl(gr_context_.get(), size, paint); |
| |
| gr_context_->resetContext(); |
| glBindFramebufferEXT(GL_FRAMEBUFFER, prev_fbo); |
| |
| return texture; |
| } |
| |
| } // namespace vr |