gpu/config/gpu_info_collector_android.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 "base/android/build_info.h"
   8 #include "base/command_line.h"
   9 #include "base/logging.h"
  10 #include "base/strings/string_number_conversions.h"
  11 #include "base/strings/string_piece.h"
  12 #include "base/strings/string_split.h"
  13 #include "base/strings/string_util.h"
  14
  15 namespace {
  16
  17 std::string GetDriverVersionFromString(const std::string& version_string) {
  18   // Extract driver version from the second number in a string like:
  19   // "OpenGL ES 2.0 V@6.0 AU@ (CL@2946718)"
  20
  21   // Exclude first "2.0".
  22   size_t begin = version_string.find_first_of("0123456789");
  23   if (begin == std::string::npos)
  24     return "0";
  25   size_t end = version_string.find_first_not_of("01234567890.", begin);
  26
  27   // Extract number of the form "%d.%d"
  28   begin = version_string.find_first_of("0123456789", end);
  29   if (begin == std::string::npos)
  30     return "0";
  31   end = version_string.find_first_not_of("01234567890.", begin);
  32   std::string sub_string;
  33   if (end != std::string::npos)
  34     sub_string = version_string.substr(begin, end - begin);
  35   else
  36     sub_string = version_string.substr(begin);
  37   std::vector<std::string> pieces;
  38   base::SplitString(sub_string, '.', &pieces);
  39   if (pieces.size() < 2)
  40     return "0";
  41   return pieces[0] + "." + pieces[1];
  42 }
  43
  44 }
  45
  46 namespace gpu {
  47
  48 bool CollectContextGraphicsInfo(GPUInfo* gpu_info) {
  49   return CollectBasicGraphicsInfo(gpu_info);
  50 }
  51
  52 GpuIDResult CollectGpuID(uint32* vendor_id, uint32* device_id) {
  53   DCHECK(vendor_id && device_id);
  54   *vendor_id = 0;
  55   *device_id = 0;
  56   return kGpuIDNotSupported;
  57 }
  58
  59 bool CollectBasicGraphicsInfo(GPUInfo* gpu_info) {
  60   gpu_info->can_lose_context = false;
  61   gpu_info->finalized = true;
  62
  63   gpu_info->machine_model = base::android::BuildInfo::GetInstance()->model();
  64
  65   // Create a short-lived context on the UI thread to collect the GL strings.
  66   return CollectGraphicsInfoGL(gpu_info);
  67 }
  68
  69 bool CollectDriverInfoGL(GPUInfo* gpu_info) {
  70   gpu_info->driver_version = GetDriverVersionFromString(
  71       gpu_info->gl_version_string);
  72   return true;
  73 }
  74
  75 void MergeGPUInfo(GPUInfo* basic_gpu_info,
  76                   const GPUInfo& context_gpu_info) {
  77   MergeGPUInfoGL(basic_gpu_info, context_gpu_info);
  78 }
  79
  80 }  // namespace gpu