gpu/skia_runner/in_process_graphics_system.cc

   1 // Copyright (c) 2015 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/skia_runner/in_process_graphics_system.h"
   6
   7 #include <iostream>
   8
   9 #include "base/lazy_instance.h"
  10 #include "base/memory/discardable_memory.h"
  11 #include "base/memory/discardable_memory_allocator.h"
  12 #include "base/thread_task_runner_handle.h"
  13 #include "base/trace_event/memory_allocator_dump.h"
  14 #include "base/trace_event/memory_dump_manager.h"
  15 #include "base/trace_event/process_memory_dump.h"
  16 #include "gpu/command_buffer/client/gles2_implementation.h"
  17 #include "gpu/command_buffer/client/gles2_lib.h"
  18 #include "gpu/skia_bindings/gl_bindings_skia_cmd_buffer.h"
  19 #include "third_party/khronos/GLES2/gl2.h"
  20 #include "third_party/skia/include/gpu/gl/GrGLInterface.h"
  21
  22 namespace {
  23
  24 // TODO(hendrikw): Replace TestDiscardableMemoryAllocator and move to base?
  25 class NonDiscardableMemory : public base::DiscardableMemory {
  26  public:
  27   explicit NonDiscardableMemory(size_t size)
  28       : data_(new uint8_t[size]), size_(size) {}
  29   bool Lock() override { return false; }
  30   void Unlock() override {}
  31   void* data() const override { return data_.get(); }
  32
  33   base::trace_event::MemoryAllocatorDump* CreateMemoryAllocatorDump(
  34       const char* name,
  35       base::trace_event::ProcessMemoryDump* pmd) const override {
  36     base::trace_event::MemoryAllocatorDump* dump =
  37         pmd->CreateAllocatorDump(name);
  38     dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameSize,
  39                     base::trace_event::MemoryAllocatorDump::kUnitsBytes, size_);
  40
  41     // Memory is allocated from system allocator (malloc).
  42     pmd->AddSuballocation(dump->guid(),
  43                           base::trace_event::MemoryDumpManager::GetInstance()
  44                               ->system_allocator_pool_name());
  45     return dump;
  46   }
  47
  48  private:
  49   scoped_ptr<uint8_t[]> data_;
  50   size_t size_;
  51 };
  52
  53 class NonDiscardableMemoryAllocator : public base::DiscardableMemoryAllocator {
  54  public:
  55   // Overridden from DiscardableMemoryAllocator:
  56   scoped_ptr<base::DiscardableMemory> AllocateLockedDiscardableMemory(
  57       size_t size) override {
  58     return make_scoped_ptr(new NonDiscardableMemory(size));
  59   }
  60 };
  61
  62 // Singleton used to initialize and terminate the gles2 library.
  63 class GLES2Initializer {
  64  public:
  65   GLES2Initializer() { gles2::Initialize(); }
  66   ~GLES2Initializer() { gles2::Terminate(); }
  67
  68  private:
  69   DISALLOW_COPY_AND_ASSIGN(GLES2Initializer);
  70 };
  71
  72 base::LazyInstance<GLES2Initializer> g_gles2_initializer =
  73     LAZY_INSTANCE_INITIALIZER;
  74 base::LazyInstance<NonDiscardableMemoryAllocator> g_discardable;
  75
  76 }  // namespace anonymous
  77
  78 namespace skia_runner {
  79
  80 void BindContext3DGLContextCallback(const GrGLInterface* gl_interface) {
  81   gles2::SetGLContext(reinterpret_cast<gpu::GLInProcessContext*>(
  82                           gl_interface->fCallbackData)->GetImplementation());
  83 }
  84
  85 InProcessGraphicsSystem::InProcessGraphicsSystem() {
  86   base::DiscardableMemoryAllocator::SetInstance(&g_discardable.Get());
  87   g_gles2_initializer.Get();
  88
  89   if (!gfx::GLSurface::InitializeOneOff()) {
  90     LOG(ERROR) << "Unable to initialize gfx::GLSurface.";
  91     return;
  92   }
  93
  94   // Create the in process context.
  95   in_process_context_ = CreateInProcessContext();
  96   if (!in_process_context_) {
  97     LOG(ERROR) << "Unable to create in process context.";
  98     return;
  99   }
 100
 101   // Create and set up skia's GL bindings.
 102   gles2::SetGLContext(in_process_context_->GetImplementation());
 103   GrGLInterface* bindings = skia_bindings::CreateCommandBufferSkiaGLBinding();
 104   if (!bindings) {
 105     LOG(ERROR) << "Unable to create skia command buffer bindings.";
 106     return;
 107   }
 108
 109   bindings->fCallback = BindContext3DGLContextCallback;
 110   bindings->fCallbackData =
 111       reinterpret_cast<GrGLInterfaceCallbackData>(in_process_context_.get());
 112
 113   // Create skia's graphics context.
 114   gr_context_ = skia::AdoptRef(GrContext::Create(
 115       kOpenGL_GrBackend, reinterpret_cast<GrBackendContext>(bindings)));
 116
 117   if (!gr_context_) {
 118     LOG(ERROR) << "Unable to create skia graphics context.";
 119     return;
 120   }
 121
 122   // Set skia's graphics context cache size.
 123   const int kMaxGaneshResourceCacheCount = 2048;
 124   const size_t kMaxGaneshResourceCacheBytes = 96 * 1024 * 1024;
 125   gr_context_->setResourceCacheLimits(kMaxGaneshResourceCacheCount,
 126                                       kMaxGaneshResourceCacheBytes);
 127 }
 128
 129 InProcessGraphicsSystem::~InProcessGraphicsSystem() {
 130 }
 131
 132 bool InProcessGraphicsSystem::IsSuccessfullyInitialized() const {
 133   return gr_context_;
 134 }
 135
 136 int InProcessGraphicsSystem::GetMaxTextureSize() const {
 137   int max_texture_size = 0;
 138   in_process_context_->GetImplementation()->GetIntegerv(GL_MAX_TEXTURE_SIZE,
 139                                                         &max_texture_size);
 140   return max_texture_size;
 141 }
 142
 143 scoped_ptr<gpu::GLInProcessContext>
 144 InProcessGraphicsSystem::CreateInProcessContext() const {
 145   const bool is_offscreen = true;
 146   const bool share_resources = true;
 147   gpu::gles2::ContextCreationAttribHelper attribs;
 148   attribs.alpha_size = 8;
 149   attribs.blue_size = 8;
 150   attribs.green_size = 8;
 151   attribs.red_size = 8;
 152   attribs.depth_size = 24;
 153   attribs.stencil_size = 8;
 154   attribs.samples = 0;
 155   attribs.sample_buffers = 0;
 156   attribs.fail_if_major_perf_caveat = false;
 157   attribs.bind_generates_resource = false;
 158   gfx::GpuPreference gpu_preference = gfx::PreferDiscreteGpu;
 159
 160   scoped_ptr<gpu::GLInProcessContext> context =
 161       make_scoped_ptr(gpu::GLInProcessContext::Create(
 162           nullptr, nullptr, is_offscreen, gfx::kNullAcceleratedWidget,
 163           gfx::Size(1, 1), nullptr, share_resources, attribs, gpu_preference,
 164           gpu::GLInProcessContextSharedMemoryLimits(), nullptr, nullptr));
 165
 166   DCHECK(context);
 167   return context.Pass();
 168 }
 169
 170 }  // namespace skia_runner