Move chrome\gpu to content\gpu.

chrome/gpu/gpu_info_collector.cc

-// Copyright (c) 2006-2010 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 "chrome/gpu/gpu_info_collector.h"
-
-#include <string>
-#include <vector>
-
-#include "app/gfx/gl/gl_bindings.h"
-#include "app/gfx/gl/gl_context.h"
-#include "base/logging.h"
-#include "base/string_number_conversions.h"
-#include "base/string_piece.h"
-#include "base/string_split.h"
-
-namespace {
-
-// This creates an offscreen GL context for gl queries.  Returned GLContext
-// should be deleted in FinalizeGLContext.
-gfx::GLContext* InitializeGLContext() {
-  if (!gfx::GLContext::InitializeOneOff()) {
-    LOG(ERROR) << "gfx::GLContext::InitializeOneOff() failed";
-    return NULL;
-  }
-  gfx::GLContext* context = gfx::GLContext::CreateOffscreenGLContext(NULL);
-  if (context == NULL) {
-    LOG(ERROR) << "gfx::GLContext::CreateOffscreenGLContext(NULL) failed";
-    return NULL;
-  }
-  if (!context->MakeCurrent()) {
-    LOG(ERROR) << "gfx::GLContext::MakeCurrent() failed";
-    context->Destroy();
-    delete context;
-    return NULL;
-  }
-  return context;
-}
-
-// This destroy and delete the GL context.
-void FinalizeGLContext(gfx::GLContext** context) {
-  DCHECK(context);
-  if (*context) {
-    (*context)->Destroy();
-    delete *context;
-    *context = NULL;
-  }
-}
-
-std::string GetGLString(unsigned int pname) {
-  const char* gl_string =
-      reinterpret_cast<const char*>(glGetString(pname));
-  if (gl_string)
-    return std::string(gl_string);
-  return "";
-}
-
-uint32 GetVersionNumberFromString(const std::string& version_string) {
-  int major = 0, minor = 0;
-  size_t begin = version_string.find_first_of("0123456789");
-  if (begin != std::string::npos) {
-    size_t end = version_string.find_first_not_of("01234567890.", begin);
-    std::string sub_string;
-    if (end != std::string::npos)
-      sub_string = version_string.substr(begin, end - begin);
-    else
-      sub_string = version_string.substr(begin);
-    std::vector<std::string> pieces;
-    base::SplitString(sub_string, '.', &pieces);
-    if (pieces.size() >= 2) {
-      base::StringToInt(pieces[0], &major);
-      base::StringToInt(pieces[1], &minor);
-    }
-  }
-  return ((major << 8) + minor);
-}
-
-}  // namespace anonymous
-
-namespace gpu_info_collector {
-
-bool CollectGraphicsInfoGL(GPUInfo* gpu_info) {
-  DCHECK(gpu_info);
-
-  gfx::GLContext* context = InitializeGLContext();
-  if (context == NULL)
-    return false;
-
-  gpu_info->gl_renderer = GetGLString(GL_RENDERER);
-  gpu_info->gl_vendor = GetGLString(GL_VENDOR);
-  gpu_info->gl_version_string =GetGLString(GL_VERSION);
-  gpu_info->gl_extensions =GetGLString(GL_EXTENSIONS);
-
-  bool validGLVersionInfo = CollectGLVersionInfo(gpu_info);
-  bool validVideoCardInfo = CollectVideoCardInfo(gpu_info);
-  bool validDriverInfo = CollectDriverInfoGL(gpu_info);
-
-  FinalizeGLContext(&context);
-
-  return (validGLVersionInfo && validVideoCardInfo && validDriverInfo);
-}
-
-bool CollectGLVersionInfo(GPUInfo* gpu_info) {
-  DCHECK(gpu_info);
-
-  std::string gl_version_string = gpu_info->gl_version_string;
-  std::string glsl_version_string =
-      GetGLString(GL_SHADING_LANGUAGE_VERSION);
-
-  uint32 gl_version = GetVersionNumberFromString(gl_version_string);
-  gpu_info->gl_version = gl_version;
-
-  uint32 glsl_version = GetVersionNumberFromString(glsl_version_string);
-  gpu_info->pixel_shader_version = glsl_version;
-  gpu_info->vertex_shader_version = glsl_version;
-
-  return true;
-}
-
-}  // namespace gpu_info_collector
-