src/gpu/command_buffer/service/async_pixel_transfer_manager_android.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "gpu/command_buffer/service/async_pixel_transfer_manager.h"
   6
   7 #include "base/android/sys_utils.h"
   8 #include "base/debug/trace_event.h"
   9 #include "gpu/command_buffer/service/async_pixel_transfer_manager_egl.h"
  10 #include "gpu/command_buffer/service/async_pixel_transfer_manager_idle.h"
  11 #include "gpu/command_buffer/service/async_pixel_transfer_manager_stub.h"
  12 #include "gpu/command_buffer/service/async_pixel_transfer_manager_sync.h"
  13 #include "ui/gl/gl_context.h"
  14 #include "ui/gl/gl_implementation.h"
  15
  16 namespace gpu {
  17 namespace {
  18
  19 bool IsBroadcom() {
  20   const char* vendor = reinterpret_cast<const char*>(glGetString(GL_VENDOR));
  21   if (vendor)
  22     return std::string(vendor).find("Broadcom") != std::string::npos;
  23   return false;
  24 }
  25
  26 bool IsImagination() {
  27   const char* vendor = reinterpret_cast<const char*>(glGetString(GL_VENDOR));
  28   if (vendor)
  29     return std::string(vendor).find("Imagination") != std::string::npos;
  30   return false;
  31 }
  32
  33 }
  34
  35 // We only used threaded uploads when we can:
  36 // - Create EGLImages out of OpenGL textures (EGL_KHR_gl_texture_2D_image)
  37 // - Bind EGLImages to OpenGL textures (GL_OES_EGL_image)
  38 // - Use fences (to test for upload completion).
  39 // - The heap size is large enough.
  40 // TODO(kaanb|epenner): Remove the IsImagination() check pending the
  41 // resolution of crbug.com/249147
  42 // TODO(kaanb|epenner): Remove the IsLowEndDevice() check pending the
  43 // resolution of crbug.com/271929
  44 AsyncPixelTransferManager* AsyncPixelTransferManager::Create(
  45     gfx::GLContext* context) {
  46   TRACE_EVENT0("gpu", "AsyncPixelTransferManager::Create");
  47   switch (gfx::GetGLImplementation()) {
  48     case gfx::kGLImplementationEGLGLES2:
  49       DCHECK(context);
  50       if (context->HasExtension("EGL_KHR_fence_sync") &&
  51           context->HasExtension("EGL_KHR_image") &&
  52           context->HasExtension("EGL_KHR_image_base") &&
  53           context->HasExtension("EGL_KHR_gl_texture_2D_image") &&
  54           context->HasExtension("GL_OES_EGL_image") &&
  55           !IsBroadcom() &&
  56           !IsImagination() &&
  57           !base::android::SysUtils::IsLowEndDevice()) {
  58         return new AsyncPixelTransferManagerEGL;
  59       }
  60       return new AsyncPixelTransferManagerIdle;
  61     case gfx::kGLImplementationOSMesaGL:
  62       return new AsyncPixelTransferManagerIdle;
  63     case gfx::kGLImplementationMockGL:
  64       return new AsyncPixelTransferManagerStub;
  65     default:
  66       NOTREACHED();
  67       return NULL;
  68   }
  69 }
  70
  71 }  // namespace gpu