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      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 #ifndef GPU_CONFIG_GPU_INFO_COLLECTOR_H_
      6 #define GPU_CONFIG_GPU_INFO_COLLECTOR_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "build/build_config.h"
     10 #include "gpu/config/gpu_info.h"
     11 #include "gpu/gpu_export.h"
     12 
     13 namespace gpu {
     14 
     15 enum GpuIDResult {
     16   kGpuIDFailure,
     17   kGpuIDSuccess,
     18   kGpuIDNotSupported
     19 };
     20 
     21 // Result for the various Collect*Info* functions below.
     22 // Fatal failures are for cases where we can't create a context at all or
     23 // something, making the use of the GPU impossible.
     24 // Non-fatal failures are for cases where we could gather most info, but maybe
     25 // some is missing (e.g. unable to parse a version string or to detect the exact
     26 // model).
     27 enum CollectInfoResult {
     28   kCollectInfoFatalFailure,
     29   kCollectInfoNonFatalFailure,
     30   kCollectInfoSuccess
     31 };
     32 
     33 // Collect GPU vendor_id and device ID.
     34 GPU_EXPORT GpuIDResult CollectGpuID(uint32* vendor_id, uint32* device_id);
     35 
     36 // Collects basic GPU info without creating a GL/DirectX context (and without
     37 // the danger of crashing), including vendor_id and device_id.
     38 // This is called at browser process startup time.
     39 // The subset each platform collects may be different.
     40 GPU_EXPORT CollectInfoResult CollectBasicGraphicsInfo(GPUInfo* gpu_info);
     41 
     42 // Create a GL/DirectX context and collect related info.
     43 // This is called at GPU process startup time.
     44 GPU_EXPORT CollectInfoResult CollectContextGraphicsInfo(GPUInfo* gpu_info);
     45 
     46 #if defined(OS_WIN)
     47 // Collect the DirectX Disagnostics information about the attached displays.
     48 GPU_EXPORT bool GetDxDiagnostics(DxDiagNode* output);
     49 #endif  // OS_WIN
     50 
     51 // Create a GL context and collect GL strings and versions.
     52 GPU_EXPORT CollectInfoResult CollectGraphicsInfoGL(GPUInfo* gpu_info);
     53 
     54 // Each platform stores the driver version on the GL_VERSION string differently
     55 GPU_EXPORT CollectInfoResult CollectDriverInfoGL(GPUInfo* gpu_info);
     56 
     57 // Merge GPUInfo from CollectContextGraphicsInfo into basic GPUInfo.
     58 // This is platform specific, depending on which info are collected at which
     59 // stage.
     60 GPU_EXPORT void MergeGPUInfo(GPUInfo* basic_gpu_info,
     61                              const GPUInfo& context_gpu_info);
     62 
     63 // MergeGPUInfo() when GL driver is used.
     64 GPU_EXPORT void MergeGPUInfoGL(GPUInfo* basic_gpu_info,
     65                                const GPUInfo& context_gpu_info);
     66 
     67 }  // namespace gpu
     68 
     69 #endif  // GPU_CONFIG_GPU_INFO_COLLECTOR_H_
     70