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 #include "ui/gl/gl_bindings.h" 15 #include "ui/gl/gl_context.h" 16 #include "ui/gl/gl_surface.h" 17 18 namespace { 19 20 std::string GetDriverVersionFromString(const std::string& version_string) { 21 // Extract driver version from the second number in a string like: 22 // "OpenGL ES 2.0 V (at) 6.0 AU@ (CL@2946718)" 23 24 // Exclude first "2.0". 25 size_t begin = version_string.find_first_of("0123456789"); 26 if (begin == std::string::npos) 27 return "0"; 28 size_t end = version_string.find_first_not_of("01234567890.", begin); 29 30 // Extract number of the form "%d.%d" 31 begin = version_string.find_first_of("0123456789", end); 32 if (begin == std::string::npos) 33 return "0"; 34 end = version_string.find_first_not_of("01234567890.", begin); 35 std::string sub_string; 36 if (end != std::string::npos) 37 sub_string = version_string.substr(begin, end - begin); 38 else 39 sub_string = version_string.substr(begin); 40 std::vector<std::string> pieces; 41 base::SplitString(sub_string, '.', &pieces); 42 if (pieces.size() < 2) 43 return "0"; 44 return pieces[0] + "." + pieces[1]; 45 } 46 47 class ScopedRestoreNonOwnedEGLContext { 48 public: 49 ScopedRestoreNonOwnedEGLContext(); 50 ~ScopedRestoreNonOwnedEGLContext(); 51 52 private: 53 EGLContext context_; 54 EGLDisplay display_; 55 EGLSurface draw_surface_; 56 EGLSurface read_surface_; 57 }; 58 59 ScopedRestoreNonOwnedEGLContext::ScopedRestoreNonOwnedEGLContext() 60 : context_(EGL_NO_CONTEXT), 61 display_(EGL_NO_DISPLAY), 62 draw_surface_(EGL_NO_SURFACE), 63 read_surface_(EGL_NO_SURFACE) { 64 // This should only used to restore a context that is not created or owned by 65 // Chromium native code, but created by Android system itself. 66 DCHECK(!gfx::GLContext::GetCurrent()); 67 68 context_ = eglGetCurrentContext(); 69 display_ = eglGetCurrentDisplay(); 70 draw_surface_ = eglGetCurrentSurface(EGL_DRAW); 71 read_surface_ = eglGetCurrentSurface(EGL_READ); 72 } 73 74 ScopedRestoreNonOwnedEGLContext::~ScopedRestoreNonOwnedEGLContext() { 75 if (context_ == EGL_NO_CONTEXT || display_ == EGL_NO_DISPLAY || 76 draw_surface_ == EGL_NO_SURFACE || read_surface_ == EGL_NO_SURFACE) 77 return; 78 79 if (!eglMakeCurrent(display_, draw_surface_, read_surface_, context_)) 80 LOG(WARNING) << "Failed to restore EGL context"; 81 } 82 83 } 84 85 namespace gpu { 86 87 CollectInfoResult CollectContextGraphicsInfo(GPUInfo* gpu_info) { 88 return CollectBasicGraphicsInfo(gpu_info); 89 } 90 91 CollectInfoResult CollectGpuID(uint32* vendor_id, uint32* device_id) { 92 DCHECK(vendor_id && device_id); 93 *vendor_id = 0; 94 *device_id = 0; 95 return kCollectInfoNonFatalFailure; 96 } 97 98 CollectInfoResult CollectBasicGraphicsInfo(GPUInfo* gpu_info) { 99 gpu_info->can_lose_context = false; 100 101 gpu_info->machine_model_name = 102 base::android::BuildInfo::GetInstance()->model(); 103 104 // Create a short-lived context on the UI thread to collect the GL strings. 105 // Make sure we restore the existing context if there is one. 106 ScopedRestoreNonOwnedEGLContext restore_context; 107 CollectInfoResult result = CollectGraphicsInfoGL(gpu_info); 108 gpu_info->basic_info_state = result; 109 gpu_info->context_info_state = result; 110 return result; 111 } 112 113 CollectInfoResult CollectDriverInfoGL(GPUInfo* gpu_info) { 114 gpu_info->driver_version = GetDriverVersionFromString( 115 gpu_info->gl_version); 116 gpu_info->gpu.vendor_string = gpu_info->gl_vendor; 117 gpu_info->gpu.device_string = gpu_info->gl_renderer; 118 return kCollectInfoSuccess; 119 } 120 121 void MergeGPUInfo(GPUInfo* basic_gpu_info, 122 const GPUInfo& context_gpu_info) { 123 MergeGPUInfoGL(basic_gpu_info, context_gpu_info); 124 } 125 126 } // namespace gpu 127