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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 #include "gpu/config/gpu_util.h"
      6 
      7 #include <vector>
      8 
      9 #include "base/command_line.h"
     10 #include "base/logging.h"
     11 #include "base/strings/string_number_conversions.h"
     12 #include "base/strings/string_split.h"
     13 #include "gpu/command_buffer/service/gpu_switches.h"
     14 #include "gpu/config/gpu_control_list_jsons.h"
     15 #include "gpu/config/gpu_driver_bug_list.h"
     16 #include "gpu/config/gpu_info_collector.h"
     17 #include "ui/gl/gl_switches.h"
     18 
     19 namespace gpu {
     20 
     21 namespace {
     22 
     23 // Combine the integers into a string, seperated by ','.
     24 std::string IntSetToString(const std::set<int>& list) {
     25   std::string rt;
     26   for (std::set<int>::const_iterator it = list.begin();
     27        it != list.end(); ++it) {
     28     if (!rt.empty())
     29       rt += ",";
     30     rt += base::IntToString(*it);
     31   }
     32   return rt;
     33 }
     34 
     35 void StringToIntSet(const std::string& str, std::set<int>* list) {
     36   DCHECK(list);
     37   std::vector<std::string> pieces;
     38   base::SplitString(str, ',', &pieces);
     39   for (size_t i = 0; i < pieces.size(); ++i) {
     40     int number = 0;
     41     bool succeed = base::StringToInt(pieces[i], &number);
     42     DCHECK(succeed);
     43     list->insert(number);
     44   }
     45 }
     46 
     47 }  // namespace anonymous
     48 
     49 void MergeFeatureSets(std::set<int>* dst, const std::set<int>& src) {
     50   DCHECK(dst);
     51   if (src.empty())
     52     return;
     53   dst->insert(src.begin(), src.end());
     54 }
     55 
     56 void ApplyGpuDriverBugWorkarounds(CommandLine* command_line) {
     57   GPUInfo gpu_info;
     58   CollectBasicGraphicsInfo(&gpu_info);
     59 
     60   ApplyGpuDriverBugWorkarounds(gpu_info, command_line);
     61 }
     62 
     63 void ApplyGpuDriverBugWorkarounds(
     64     const GPUInfo& gpu_info, CommandLine* command_line) {
     65   scoped_ptr<GpuDriverBugList> list(GpuDriverBugList::Create());
     66   list->LoadList(kGpuDriverBugListJson,
     67                  GpuControlList::kCurrentOsOnly);
     68   std::set<int> workarounds = list->MakeDecision(
     69       GpuControlList::kOsAny, std::string(), gpu_info);
     70   GpuDriverBugList::AppendWorkaroundsFromCommandLine(
     71       &workarounds, *command_line);
     72   if (!workarounds.empty()) {
     73     command_line->AppendSwitchASCII(switches::kGpuDriverBugWorkarounds,
     74                                     IntSetToString(workarounds));
     75   }
     76 }
     77 
     78 void StringToFeatureSet(
     79     const std::string& str, std::set<int>* feature_set) {
     80   StringToIntSet(str, feature_set);
     81 }
     82 
     83 }  // namespace gpu
     84