src/gpu/command_buffer/tests/gl_manager.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/command_buffer/tests/gl_manager.h"
   6
   7 #include <GLES2/gl2.h>
   8 #include <GLES2/gl2ext.h>
   9
  10 #include <vector>
  11
  12 #include "base/at_exit.h"
  13 #include "base/bind.h"
  14 #include "base/memory/ref_counted_memory.h"
  15 #include "gpu/command_buffer/client/gles2_implementation.h"
  16 #include "gpu/command_buffer/client/gles2_lib.h"
  17 #include "gpu/command_buffer/client/transfer_buffer.h"
  18 #include "gpu/command_buffer/common/constants.h"
  19 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
  20 #include "gpu/command_buffer/service/command_buffer_service.h"
  21 #include "gpu/command_buffer/service/context_group.h"
  22 #include "gpu/command_buffer/service/gl_context_virtual.h"
  23 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
  24 #include "gpu/command_buffer/service/gpu_scheduler.h"
  25 #include "gpu/command_buffer/service/image_manager.h"
  26 #include "gpu/command_buffer/service/mailbox_manager.h"
  27 #include "testing/gtest/include/gtest/gtest.h"
  28 #include "ui/gfx/gpu_memory_buffer.h"
  29 #include "ui/gl/gl_context.h"
  30 #include "ui/gl/gl_image_ref_counted_memory.h"
  31 #include "ui/gl/gl_share_group.h"
  32 #include "ui/gl/gl_surface.h"
  33
  34 namespace gpu {
  35 namespace {
  36
  37 int BytesPerPixel(unsigned internalformat) {
  38   switch (internalformat) {
  39     case GL_RGBA8_OES:
  40       return 4;
  41     default:
  42       NOTREACHED();
  43       return 0;
  44   }
  45 }
  46
  47 class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
  48  public:
  49   GpuMemoryBufferImpl(base::RefCountedBytes* bytes,
  50                       const gfx::Size& size,
  51                       unsigned internalformat)
  52       : bytes_(bytes),
  53         size_(size),
  54         internalformat_(internalformat),
  55         mapped_(false) {}
  56
  57   // Overridden from gfx::GpuMemoryBuffer:
  58   virtual void* Map() OVERRIDE {
  59     mapped_ = true;
  60     return &bytes_->data().front();
  61   }
  62   virtual void Unmap() OVERRIDE { mapped_ = false; }
  63   virtual bool IsMapped() const OVERRIDE { return mapped_; }
  64   virtual uint32 GetStride() const OVERRIDE {
  65     return size_.width() * BytesPerPixel(internalformat_);
  66   }
  67   virtual gfx::GpuMemoryBufferHandle GetHandle() const OVERRIDE {
  68     NOTREACHED();
  69     return gfx::GpuMemoryBufferHandle();
  70   }
  71
  72  private:
  73   scoped_refptr<base::RefCountedBytes> bytes_;
  74   const gfx::Size size_;
  75   unsigned internalformat_;
  76   bool mapped_;
  77 };
  78
  79 }  // namespace
  80
  81 int GLManager::use_count_;
  82 scoped_refptr<gfx::GLShareGroup>* GLManager::base_share_group_;
  83 scoped_refptr<gfx::GLSurface>* GLManager::base_surface_;
  84 scoped_refptr<gfx::GLContext>* GLManager::base_context_;
  85
  86 GLManager::Options::Options()
  87     : size(4, 4),
  88       share_group_manager(NULL),
  89       share_mailbox_manager(NULL),
  90       virtual_manager(NULL),
  91       bind_generates_resource(false),
  92       lose_context_when_out_of_memory(false),
  93       context_lost_allowed(false) {
  94 }
  95
  96 GLManager::GLManager() : context_lost_allowed_(false) {
  97   SetupBaseContext();
  98 }
  99
 100 GLManager::~GLManager() {
 101   --use_count_;
 102   if (!use_count_) {
 103     if (base_share_group_) {
 104       delete base_context_;
 105       base_context_ = NULL;
 106     }
 107     if (base_surface_) {
 108       delete base_surface_;
 109       base_surface_ = NULL;
 110     }
 111     if (base_context_) {
 112       delete base_context_;
 113       base_context_ = NULL;
 114     }
 115   }
 116 }
 117
 118 void GLManager::Initialize(const GLManager::Options& options) {
 119   const int32 kCommandBufferSize = 1024 * 1024;
 120   const size_t kStartTransferBufferSize = 4 * 1024 * 1024;
 121   const size_t kMinTransferBufferSize = 1 * 256 * 1024;
 122   const size_t kMaxTransferBufferSize = 16 * 1024 * 1024;
 123
 124   context_lost_allowed_ = options.context_lost_allowed;
 125
 126   gles2::MailboxManager* mailbox_manager = NULL;
 127   if (options.share_mailbox_manager) {
 128     mailbox_manager = options.share_mailbox_manager->mailbox_manager();
 129   } else if (options.share_group_manager) {
 130     mailbox_manager = options.share_group_manager->mailbox_manager();
 131   }
 132
 133   gfx::GLShareGroup* share_group = NULL;
 134   if (options.share_group_manager) {
 135     share_group = options.share_group_manager->share_group();
 136   } else if (options.share_mailbox_manager) {
 137     share_group = options.share_mailbox_manager->share_group();
 138   }
 139
 140   gles2::ContextGroup* context_group = NULL;
 141   gles2::ShareGroup* client_share_group = NULL;
 142   if (options.share_group_manager) {
 143     context_group = options.share_group_manager->decoder_->GetContextGroup();
 144     client_share_group =
 145       options.share_group_manager->gles2_implementation()->share_group();
 146   }
 147
 148   gfx::GLContext* real_gl_context = NULL;
 149   if (options.virtual_manager) {
 150     real_gl_context = options.virtual_manager->context();
 151   }
 152
 153   mailbox_manager_ =
 154       mailbox_manager ? mailbox_manager : new gles2::MailboxManager;
 155   share_group_ =
 156       share_group ? share_group : new gfx::GLShareGroup;
 157
 158   gfx::GpuPreference gpu_preference(gfx::PreferDiscreteGpu);
 159   std::vector<int32> attribs;
 160   gles2::ContextCreationAttribHelper attrib_helper;
 161   attrib_helper.red_size = 8;
 162   attrib_helper.green_size = 8;
 163   attrib_helper.blue_size = 8;
 164   attrib_helper.alpha_size = 8;
 165   attrib_helper.depth_size = 16;
 166   attrib_helper.Serialize(&attribs);
 167
 168   if (!context_group) {
 169     context_group =
 170         new gles2::ContextGroup(mailbox_manager_.get(),
 171                                 NULL,
 172                                 new gpu::gles2::ShaderTranslatorCache,
 173                                 NULL,
 174                                 options.bind_generates_resource);
 175   }
 176
 177   decoder_.reset(::gpu::gles2::GLES2Decoder::Create(context_group));
 178
 179   command_buffer_.reset(new CommandBufferService(
 180       decoder_->GetContextGroup()->transfer_buffer_manager()));
 181   ASSERT_TRUE(command_buffer_->Initialize())
 182       << "could not create command buffer service";
 183
 184   gpu_scheduler_.reset(new GpuScheduler(command_buffer_.get(),
 185                                         decoder_.get(),
 186                                         decoder_.get()));
 187
 188   decoder_->set_engine(gpu_scheduler_.get());
 189
 190   surface_ = gfx::GLSurface::CreateOffscreenGLSurface(options.size);
 191   ASSERT_TRUE(surface_.get() != NULL) << "could not create offscreen surface";
 192
 193   if (base_context_) {
 194     context_ = scoped_refptr<gfx::GLContext>(new gpu::GLContextVirtual(
 195         share_group_.get(), base_context_->get(), decoder_->AsWeakPtr()));
 196     ASSERT_TRUE(context_->Initialize(
 197         surface_.get(), gfx::PreferIntegratedGpu));
 198   } else {
 199     if (real_gl_context) {
 200       context_ = scoped_refptr<gfx::GLContext>(new gpu::GLContextVirtual(
 201           share_group_.get(), real_gl_context, decoder_->AsWeakPtr()));
 202       ASSERT_TRUE(context_->Initialize(
 203           surface_.get(), gfx::PreferIntegratedGpu));
 204     } else {
 205       context_ = gfx::GLContext::CreateGLContext(share_group_.get(),
 206                                                  surface_.get(),
 207                                                  gpu_preference);
 208     }
 209   }
 210   ASSERT_TRUE(context_.get() != NULL) << "could not create GL context";
 211
 212   ASSERT_TRUE(context_->MakeCurrent(surface_.get()));
 213
 214   ASSERT_TRUE(decoder_->Initialize(
 215       surface_.get(),
 216       context_.get(),
 217       true,
 218       options.size,
 219       ::gpu::gles2::DisallowedFeatures(),
 220       attribs)) << "could not initialize decoder";
 221
 222   command_buffer_->SetPutOffsetChangeCallback(
 223       base::Bind(&GLManager::PumpCommands, base::Unretained(this)));
 224   command_buffer_->SetGetBufferChangeCallback(
 225       base::Bind(&GLManager::GetBufferChanged, base::Unretained(this)));
 226
 227   // Create the GLES2 helper, which writes the command buffer protocol.
 228   gles2_helper_.reset(new gles2::GLES2CmdHelper(command_buffer_.get()));
 229   ASSERT_TRUE(gles2_helper_->Initialize(kCommandBufferSize));
 230
 231   // Create a transfer buffer.
 232   transfer_buffer_.reset(new TransferBuffer(gles2_helper_.get()));
 233
 234   // Create the object exposing the OpenGL API.
 235   gles2_implementation_.reset(
 236       new gles2::GLES2Implementation(gles2_helper_.get(),
 237                                      client_share_group,
 238                                      transfer_buffer_.get(),
 239                                      options.bind_generates_resource,
 240                                      options.lose_context_when_out_of_memory,
 241                                      this));
 242
 243   ASSERT_TRUE(gles2_implementation_->Initialize(
 244       kStartTransferBufferSize,
 245       kMinTransferBufferSize,
 246       kMaxTransferBufferSize,
 247       gpu::gles2::GLES2Implementation::kNoLimit))
 248           << "Could not init GLES2Implementation";
 249
 250   MakeCurrent();
 251 }
 252
 253 void GLManager::SetupBaseContext() {
 254   if (use_count_) {
 255     #if defined(OS_ANDROID)
 256       base_share_group_ = new scoped_refptr<gfx::GLShareGroup>(
 257           new gfx::GLShareGroup);
 258       gfx::Size size(4, 4);
 259       base_surface_ = new scoped_refptr<gfx::GLSurface>(
 260           gfx::GLSurface::CreateOffscreenGLSurface(size));
 261       gfx::GpuPreference gpu_preference(gfx::PreferDiscreteGpu);
 262       base_context_ = new scoped_refptr<gfx::GLContext>(
 263           gfx::GLContext::CreateGLContext(base_share_group_->get(),
 264                                           base_surface_->get(),
 265                                           gpu_preference));
 266     #endif
 267   }
 268   ++use_count_;
 269 }
 270
 271 void GLManager::MakeCurrent() {
 272   ::gles2::SetGLContext(gles2_implementation_.get());
 273 }
 274
 275 void GLManager::SetSurface(gfx::GLSurface* surface) {
 276   decoder_->SetSurface(surface);
 277 }
 278
 279 void GLManager::Destroy() {
 280   if (gles2_implementation_.get()) {
 281     MakeCurrent();
 282     EXPECT_TRUE(glGetError() == GL_NONE);
 283     gles2_implementation_->Flush();
 284     gles2_implementation_.reset();
 285   }
 286   transfer_buffer_.reset();
 287   gles2_helper_.reset();
 288   command_buffer_.reset();
 289   if (decoder_.get()) {
 290     decoder_->MakeCurrent();
 291     decoder_->Destroy(true);
 292     decoder_.reset();
 293   }
 294 }
 295
 296 const gpu::gles2::FeatureInfo::Workarounds& GLManager::workarounds() const {
 297   return decoder_->GetContextGroup()->feature_info()->workarounds();
 298 }
 299
 300 void GLManager::PumpCommands() {
 301   decoder_->MakeCurrent();
 302   gpu_scheduler_->PutChanged();
 303   ::gpu::CommandBuffer::State state = command_buffer_->GetLastState();
 304   if (!context_lost_allowed_) {
 305     ASSERT_EQ(::gpu::error::kNoError, state.error);
 306   }
 307 }
 308
 309 bool GLManager::GetBufferChanged(int32 transfer_buffer_id) {
 310   return gpu_scheduler_->SetGetBuffer(transfer_buffer_id);
 311 }
 312
 313 Capabilities GLManager::GetCapabilities() {
 314   return decoder_->GetCapabilities();
 315 }
 316
 317 gfx::GpuMemoryBuffer* GLManager::CreateGpuMemoryBuffer(
 318     size_t width,
 319     size_t height,
 320     unsigned internalformat,
 321     unsigned usage,
 322     int32* id) {
 323   gfx::Size size(width, height);
 324
 325   *id = -1;
 326
 327   std::vector<unsigned char> data(
 328       size.GetArea() * BytesPerPixel(internalformat), 0);
 329   scoped_refptr<base::RefCountedBytes> bytes(new base::RefCountedBytes(data));
 330   scoped_ptr<gfx::GpuMemoryBuffer> buffer(
 331       new GpuMemoryBufferImpl(bytes.get(), size, internalformat));
 332
 333   static int32 next_id = 1;
 334   int32 new_id = next_id++;
 335
 336   scoped_refptr<gfx::GLImageRefCountedMemory> image(
 337       new gfx::GLImageRefCountedMemory(size, internalformat));
 338   if (!image->Initialize(bytes.get()))
 339     return NULL;
 340
 341   gpu::gles2::ImageManager* image_manager = decoder_->GetImageManager();
 342   DCHECK(image_manager);
 343   image_manager->AddImage(image.get(), new_id);
 344
 345   *id = new_id;
 346   DCHECK(gpu_memory_buffers_.find(new_id) == gpu_memory_buffers_.end());
 347   return gpu_memory_buffers_.add(new_id, buffer.Pass()).first->second;
 348 }
 349
 350 void GLManager::DestroyGpuMemoryBuffer(int32 id) {
 351   gpu::gles2::ImageManager* image_manager = decoder_->GetImageManager();
 352   DCHECK(image_manager);
 353   image_manager->RemoveImage(id);
 354
 355   gpu_memory_buffers_.erase(id);
 356 }
 357
 358 uint32 GLManager::InsertSyncPoint() {
 359   NOTIMPLEMENTED();
 360   return 0u;
 361 }
 362
 363 uint32 GLManager::InsertFutureSyncPoint() {
 364   NOTIMPLEMENTED();
 365   return 0u;
 366 }
 367
 368 void GLManager::RetireSyncPoint(uint32 sync_point) {
 369   NOTIMPLEMENTED();
 370 }
 371
 372 void GLManager::SignalSyncPoint(uint32 sync_point,
 373                                 const base::Closure& callback) {
 374   NOTIMPLEMENTED();
 375 }
 376
 377 void GLManager::SignalQuery(uint32 query, const base::Closure& callback) {
 378   NOTIMPLEMENTED();
 379 }
 380
 381 void GLManager::SetSurfaceVisible(bool visible) {
 382   NOTIMPLEMENTED();
 383 }
 384
 385 void GLManager::Echo(const base::Closure& callback) {
 386   NOTIMPLEMENTED();
 387 }
 388
 389 uint32 GLManager::CreateStreamTexture(uint32 texture_id) {
 390   NOTIMPLEMENTED();
 391   return 0;
 392 }
 393
 394 }  // namespace gpu