gpu/config/gpu_info_collector.cc

   1 // Copyright (c) 2012 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/config/gpu_info_collector.h"
   6
   7 #include <string>
   8 #include <vector>
   9
  10 #include "base/logging.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/strings/string_number_conversions.h"
  13 #include "base/strings/string_piece.h"
  14 #include "base/strings/string_split.h"
  15 #include "base/strings/stringprintf.h"
  16 #include "base/trace_event/trace_event.h"
  17 #include "ui/gl/gl_bindings.h"
  18 #include "ui/gl/gl_context.h"
  19 #include "ui/gl/gl_implementation.h"
  20 #include "ui/gl/gl_surface.h"
  21
  22 namespace {
  23
  24 scoped_refptr<gfx::GLSurface> InitializeGLSurface() {
  25   scoped_refptr<gfx::GLSurface> surface(
  26       gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size()));
  27   if (!surface.get()) {
  28     LOG(ERROR) << "gfx::GLContext::CreateOffscreenGLSurface failed";
  29     return NULL;
  30   }
  31
  32   return surface;
  33 }
  34
  35 scoped_refptr<gfx::GLContext> InitializeGLContext(gfx::GLSurface* surface) {
  36
  37   scoped_refptr<gfx::GLContext> context(
  38       gfx::GLContext::CreateGLContext(NULL,
  39                                       surface,
  40                                       gfx::PreferIntegratedGpu));
  41   if (!context.get()) {
  42     LOG(ERROR) << "gfx::GLContext::CreateGLContext failed";
  43     return NULL;
  44   }
  45
  46   if (!context->MakeCurrent(surface)) {
  47     LOG(ERROR) << "gfx::GLContext::MakeCurrent() failed";
  48     return NULL;
  49   }
  50
  51   return context;
  52 }
  53
  54 std::string GetGLString(unsigned int pname) {
  55   const char* gl_string =
  56       reinterpret_cast<const char*>(glGetString(pname));
  57   if (gl_string)
  58     return std::string(gl_string);
  59   return std::string();
  60 }
  61
  62 // Return a version string in the format of "major.minor".
  63 std::string GetVersionFromString(const std::string& version_string) {
  64   size_t begin = version_string.find_first_of("0123456789");
  65   if (begin != std::string::npos) {
  66     size_t end = version_string.find_first_not_of("01234567890.", begin);
  67     std::string sub_string;
  68     if (end != std::string::npos)
  69       sub_string = version_string.substr(begin, end - begin);
  70     else
  71       sub_string = version_string.substr(begin);
  72     std::vector<std::string> pieces;
  73     base::SplitString(sub_string, '.', &pieces);
  74     if (pieces.size() >= 2)
  75       return pieces[0] + "." + pieces[1];
  76   }
  77   return std::string();
  78 }
  79
  80 }  // namespace anonymous
  81
  82 namespace gpu {
  83
  84 CollectInfoResult CollectGraphicsInfoGL(GPUInfo* gpu_info) {
  85   TRACE_EVENT0("startup", "gpu_info_collector::CollectGraphicsInfoGL");
  86   DCHECK_NE(gfx::GetGLImplementation(), gfx::kGLImplementationNone);
  87
  88   scoped_refptr<gfx::GLSurface> surface(InitializeGLSurface());
  89   if (!surface.get()) {
  90     LOG(ERROR) << "Could not create surface for info collection.";
  91     return kCollectInfoFatalFailure;
  92   }
  93
  94   scoped_refptr<gfx::GLContext> context(InitializeGLContext(surface.get()));
  95   if (!context.get()) {
  96     LOG(ERROR) << "Could not create context for info collection.";
  97     return kCollectInfoFatalFailure;
  98   }
  99
 100   gpu_info->gl_renderer = GetGLString(GL_RENDERER);
 101   gpu_info->gl_vendor = GetGLString(GL_VENDOR);
 102   gpu_info->gl_extensions = GetGLString(GL_EXTENSIONS);
 103   gpu_info->gl_version = GetGLString(GL_VERSION);
 104   std::string glsl_version_string = GetGLString(GL_SHADING_LANGUAGE_VERSION);
 105   GLint max_samples = 0;
 106   glGetIntegerv(GL_MAX_SAMPLES, &max_samples);
 107   gpu_info->max_msaa_samples = base::StringPrintf("%d", max_samples);
 108
 109   gfx::GLWindowSystemBindingInfo window_system_binding_info;
 110   if (GetGLWindowSystemBindingInfo(&window_system_binding_info)) {
 111     gpu_info->gl_ws_vendor = window_system_binding_info.vendor;
 112     gpu_info->gl_ws_version = window_system_binding_info.version;
 113     gpu_info->gl_ws_extensions = window_system_binding_info.extensions;
 114     gpu_info->direct_rendering = window_system_binding_info.direct_rendering;
 115   }
 116
 117   bool supports_robustness =
 118       gpu_info->gl_extensions.find("GL_EXT_robustness") != std::string::npos ||
 119       gpu_info->gl_extensions.find("GL_KHR_robustness") != std::string::npos ||
 120       gpu_info->gl_extensions.find("GL_ARB_robustness") != std::string::npos;
 121   if (supports_robustness) {
 122     glGetIntegerv(GL_RESET_NOTIFICATION_STRATEGY_ARB,
 123         reinterpret_cast<GLint*>(&gpu_info->gl_reset_notification_strategy));
 124   }
 125
 126   // TODO(kbr): remove once the destruction of a current context automatically
 127   // clears the current context.
 128   context->ReleaseCurrent(surface.get());
 129
 130   std::string glsl_version = GetVersionFromString(glsl_version_string);
 131   gpu_info->pixel_shader_version = glsl_version;
 132   gpu_info->vertex_shader_version = glsl_version;
 133
 134   return CollectDriverInfoGL(gpu_info);
 135 }
 136
 137 void MergeGPUInfoGL(GPUInfo* basic_gpu_info,
 138                     const GPUInfo& context_gpu_info) {
 139   DCHECK(basic_gpu_info);
 140   basic_gpu_info->gl_renderer = context_gpu_info.gl_renderer;
 141   basic_gpu_info->gl_vendor = context_gpu_info.gl_vendor;
 142   basic_gpu_info->gl_version = context_gpu_info.gl_version;
 143   basic_gpu_info->gl_extensions = context_gpu_info.gl_extensions;
 144   basic_gpu_info->pixel_shader_version =
 145       context_gpu_info.pixel_shader_version;
 146   basic_gpu_info->vertex_shader_version =
 147       context_gpu_info.vertex_shader_version;
 148   basic_gpu_info->max_msaa_samples =
 149       context_gpu_info.max_msaa_samples;
 150   basic_gpu_info->gl_ws_vendor = context_gpu_info.gl_ws_vendor;
 151   basic_gpu_info->gl_ws_version = context_gpu_info.gl_ws_version;
 152   basic_gpu_info->gl_ws_extensions = context_gpu_info.gl_ws_extensions;
 153   basic_gpu_info->gl_reset_notification_strategy =
 154       context_gpu_info.gl_reset_notification_strategy;
 155
 156   if (!context_gpu_info.driver_vendor.empty())
 157     basic_gpu_info->driver_vendor = context_gpu_info.driver_vendor;
 158   if (!context_gpu_info.driver_version.empty())
 159     basic_gpu_info->driver_version = context_gpu_info.driver_version;
 160
 161   basic_gpu_info->can_lose_context = context_gpu_info.can_lose_context;
 162   basic_gpu_info->sandboxed = context_gpu_info.sandboxed;
 163   basic_gpu_info->direct_rendering = context_gpu_info.direct_rendering;
 164   basic_gpu_info->context_info_state = context_gpu_info.context_info_state;
 165   basic_gpu_info->initialization_time = context_gpu_info.initialization_time;
 166   basic_gpu_info->video_decode_accelerator_supported_profiles =
 167       context_gpu_info.video_decode_accelerator_supported_profiles;
 168   basic_gpu_info->video_encode_accelerator_supported_profiles =
 169       context_gpu_info.video_encode_accelerator_supported_profiles;
 170 }
 171
 172 }  // namespace gpu
 173