| // Copyright 2016 The Chromium 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 "ui/gl/init/gl_factory.h" |
| |
| #include "base/logging.h" |
| #include "base/trace_event/trace_event.h" |
| #include "ui/gl/gl_context.h" |
| #include "ui/gl/gl_context_egl.h" |
| #include "ui/gl/gl_context_osmesa.h" |
| #include "ui/gl/gl_context_stub.h" |
| #include "ui/gl/gl_context_wgl.h" |
| #include "ui/gl/gl_egl_api_implementation.h" |
| #include "ui/gl/gl_implementation.h" |
| #include "ui/gl/gl_share_group.h" |
| #include "ui/gl/gl_surface.h" |
| #include "ui/gl/gl_surface_egl.h" |
| #include "ui/gl/gl_surface_osmesa.h" |
| #include "ui/gl/gl_surface_osmesa_win.h" |
| #include "ui/gl/gl_surface_stub.h" |
| #include "ui/gl/gl_surface_wgl.h" |
| #include "ui/gl/gl_wgl_api_implementation.h" |
| #include "ui/gl/vsync_provider_win.h" |
| |
| namespace gl { |
| namespace init { |
| |
| std::vector<GLImplementation> GetAllowedGLImplementations() { |
| std::vector<GLImplementation> impls; |
| impls.push_back(kGLImplementationEGLGLES2); |
| impls.push_back(kGLImplementationDesktopGL); |
| impls.push_back(kGLImplementationOSMesaGL); |
| impls.push_back(kGLImplementationSwiftShaderGL); |
| return impls; |
| } |
| |
| bool GetGLWindowSystemBindingInfo(GLWindowSystemBindingInfo* info) { |
| switch (GetGLImplementation()) { |
| case kGLImplementationDesktopGL: |
| return GetGLWindowSystemBindingInfoWGL(info); |
| case kGLImplementationEGLGLES2: |
| return GetGLWindowSystemBindingInfoEGL(info); |
| default: |
| return false; |
| } |
| } |
| |
| scoped_refptr<GLContext> CreateGLContext(GLShareGroup* share_group, |
| GLSurface* compatible_surface, |
| const GLContextAttribs& attribs) { |
| TRACE_EVENT0("gpu", "gl::init::CreateGLContext"); |
| switch (GetGLImplementation()) { |
| case kGLImplementationOSMesaGL: |
| return InitializeGLContext(new GLContextOSMesa(share_group), |
| compatible_surface, attribs); |
| case kGLImplementationSwiftShaderGL: |
| case kGLImplementationEGLGLES2: |
| return InitializeGLContext(new GLContextEGL(share_group), |
| compatible_surface, attribs); |
| case kGLImplementationDesktopGL: |
| return InitializeGLContext(new GLContextWGL(share_group), |
| compatible_surface, attribs); |
| case kGLImplementationMockGL: |
| return new GLContextStub(share_group); |
| case kGLImplementationStubGL: { |
| scoped_refptr<GLContextStub> stub_context = |
| new GLContextStub(share_group); |
| stub_context->SetUseStubApi(true); |
| return stub_context; |
| } |
| default: |
| NOTREACHED(); |
| return nullptr; |
| } |
| } |
| |
| scoped_refptr<GLSurface> CreateViewGLSurface(gfx::AcceleratedWidget window) { |
| TRACE_EVENT0("gpu", "gl::init::CreateViewGLSurface"); |
| switch (GetGLImplementation()) { |
| case kGLImplementationOSMesaGL: |
| return InitializeGLSurface(new GLSurfaceOSMesaWin(window)); |
| case kGLImplementationSwiftShaderGL: |
| case kGLImplementationEGLGLES2: { |
| std::unique_ptr<gfx::VSyncProvider> sync_provider( |
| new VSyncProviderWin(window)); |
| return CreateNativeViewGLSurfaceEGL(window, std::move(sync_provider)); |
| } |
| case kGLImplementationDesktopGL: |
| return InitializeGLSurface(new NativeViewGLSurfaceWGL(window)); |
| case kGLImplementationMockGL: |
| case kGLImplementationStubGL: |
| return new GLSurfaceStub; |
| default: |
| NOTREACHED(); |
| return nullptr; |
| } |
| } |
| |
| scoped_refptr<GLSurface> CreateNativeViewGLSurfaceEGL( |
| gfx::AcceleratedWidget window, |
| std::unique_ptr<gfx::VSyncProvider> sync_provider) { |
| DCHECK_EQ(kGLImplementationEGLGLES2, GetGLImplementation()); |
| DCHECK(window != gfx::kNullAcceleratedWidget); |
| |
| scoped_refptr<NativeViewGLSurfaceEGL> surface( |
| new NativeViewGLSurfaceEGL(window)); |
| |
| if (!surface->Initialize(std::move(sync_provider))) |
| return nullptr; |
| |
| return surface; |
| } |
| |
| scoped_refptr<GLSurface> CreateOffscreenGLSurfaceWithFormat( |
| const gfx::Size& size, GLSurfaceFormat format) { |
| TRACE_EVENT0("gpu", "gl::init::CreateOffscreenGLSurface"); |
| switch (GetGLImplementation()) { |
| case kGLImplementationOSMesaGL: |
| format.SetDefaultPixelLayout(GLSurfaceFormat::PIXEL_LAYOUT_RGBA); |
| return InitializeGLSurfaceWithFormat( |
| new GLSurfaceOSMesa(format, size), format); |
| case kGLImplementationSwiftShaderGL: |
| case kGLImplementationEGLGLES2: |
| return InitializeGLSurfaceWithFormat( |
| new PbufferGLSurfaceEGL(size), format); |
| case kGLImplementationDesktopGL: |
| return InitializeGLSurfaceWithFormat( |
| new PbufferGLSurfaceWGL(size), format); |
| case kGLImplementationMockGL: |
| case kGLImplementationStubGL: |
| return new GLSurfaceStub; |
| default: |
| NOTREACHED(); |
| return nullptr; |
| } |
| } |
| |
| } // namespace init |
| } // namespace gl |