ui/gl/gl_surface.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 "ui/gl/gl_surface.h"
   6
   7 #include <algorithm>
   8 #include <vector>
   9
  10 #include "base/command_line.h"
  11 #include "base/debug/trace_event.h"
  12 #include "base/lazy_instance.h"
  13 #include "base/logging.h"
  14 #include "base/threading/thread_local.h"
  15 #include "ui/gl/gl_context.h"
  16 #include "ui/gl/gl_implementation.h"
  17 #include "ui/gl/gl_switches.h"
  18
  19 #if defined(USE_X11)
  20 #include <X11/Xlib.h>
  21 #endif
  22
  23 namespace gfx {
  24
  25 namespace {
  26 base::LazyInstance<base::ThreadLocalPointer<GLSurface> >::Leaky
  27     current_surface_ = LAZY_INSTANCE_INITIALIZER;
  28 }  // namespace
  29
  30 // static
  31 bool GLSurface::InitializeOneOff() {
  32   DCHECK_EQ(kGLImplementationNone, GetGLImplementation());
  33
  34   TRACE_EVENT0("gpu", "GLSurface::InitializeOneOff");
  35
  36   std::vector<GLImplementation> allowed_impls;
  37   GetAllowedGLImplementations(&allowed_impls);
  38   DCHECK(!allowed_impls.empty());
  39
  40   base::CommandLine* cmd = base::CommandLine::ForCurrentProcess();
  41
  42   // The default implementation is always the first one in list.
  43   GLImplementation impl = allowed_impls[0];
  44   bool fallback_to_osmesa = false;
  45   if (cmd->HasSwitch(switches::kOverrideUseGLWithOSMesaForTests)) {
  46     impl = kGLImplementationOSMesaGL;
  47   } else if (cmd->HasSwitch(switches::kUseGL)) {
  48     std::string requested_implementation_name =
  49         cmd->GetSwitchValueASCII(switches::kUseGL);
  50     if (requested_implementation_name == "any") {
  51       fallback_to_osmesa = true;
  52     } else if (requested_implementation_name == "swiftshader") {
  53       impl = kGLImplementationEGLGLES2;
  54     } else {
  55       impl = GetNamedGLImplementation(requested_implementation_name);
  56       if (std::find(allowed_impls.begin(),
  57                     allowed_impls.end(),
  58                     impl) == allowed_impls.end()) {
  59         LOG(ERROR) << "Requested GL implementation is not available.";
  60         return false;
  61       }
  62     }
  63   }
  64
  65   bool gpu_service_logging = cmd->HasSwitch(switches::kEnableGPUServiceLogging);
  66   bool disable_gl_drawing = cmd->HasSwitch(switches::kDisableGLDrawingForTests);
  67
  68   return InitializeOneOffImplementation(
  69       impl, fallback_to_osmesa, gpu_service_logging, disable_gl_drawing);
  70 }
  71
  72 // static
  73 bool GLSurface::InitializeOneOffImplementation(GLImplementation impl,
  74                                                bool fallback_to_osmesa,
  75                                                bool gpu_service_logging,
  76                                                bool disable_gl_drawing) {
  77   bool initialized =
  78       InitializeStaticGLBindings(impl) && InitializeOneOffInternal();
  79   if (!initialized && fallback_to_osmesa) {
  80     ClearGLBindings();
  81     initialized = InitializeStaticGLBindings(kGLImplementationOSMesaGL) &&
  82                   InitializeOneOffInternal();
  83   }
  84   if (!initialized)
  85     ClearGLBindings();
  86
  87   if (initialized) {
  88     DVLOG(1) << "Using "
  89              << GetGLImplementationName(GetGLImplementation())
  90              << " GL implementation.";
  91     if (gpu_service_logging)
  92       InitializeDebugGLBindings();
  93     if (disable_gl_drawing)
  94       InitializeNullDrawGLBindings();
  95   }
  96   return initialized;
  97 }
  98
  99 // static
 100 void GLSurface::InitializeOneOffForTests() {
 101   DCHECK_EQ(kGLImplementationNone, GetGLImplementation());
 102
 103 #if defined(USE_X11)
 104   XInitThreads();
 105 #endif
 106
 107   bool use_osmesa = true;
 108
 109   // We usually use OSMesa as this works on all bots. The command line can
 110   // override this behaviour to use hardware GL.
 111   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
 112           switches::kUseGpuInTests))
 113     use_osmesa = false;
 114
 115 #if defined(OS_ANDROID)
 116   // On Android we always use hardware GL.
 117   use_osmesa = false;
 118 #endif
 119
 120   std::vector<GLImplementation> allowed_impls;
 121   GetAllowedGLImplementations(&allowed_impls);
 122   DCHECK(!allowed_impls.empty());
 123
 124   GLImplementation impl = allowed_impls[0];
 125   if (use_osmesa)
 126     impl = kGLImplementationOSMesaGL;
 127
 128   DCHECK(!base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kUseGL))
 129       << "kUseGL has not effect in tests";
 130
 131   bool fallback_to_osmesa = false;
 132   bool gpu_service_logging = false;
 133   bool disable_gl_drawing = true;
 134
 135   CHECK(InitializeOneOffImplementation(
 136       impl, fallback_to_osmesa, gpu_service_logging, disable_gl_drawing));
 137 }
 138
 139 // static
 140 void GLSurface::InitializeOneOffWithMockBindingsForTests() {
 141   DCHECK(!base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kUseGL))
 142       << "kUseGL has not effect in tests";
 143
 144   // This method may be called multiple times in the same process to set up
 145   // mock bindings in different ways.
 146   ClearGLBindings();
 147
 148   bool fallback_to_osmesa = false;
 149   bool gpu_service_logging = false;
 150   bool disable_gl_drawing = false;
 151
 152   CHECK(InitializeOneOffImplementation(kGLImplementationMockGL,
 153                                        fallback_to_osmesa,
 154                                        gpu_service_logging,
 155                                        disable_gl_drawing));
 156 }
 157
 158 // static
 159 void GLSurface::InitializeDynamicMockBindingsForTests(GLContext* context) {
 160   CHECK(InitializeDynamicGLBindings(kGLImplementationMockGL, context));
 161 }
 162
 163 GLSurface::GLSurface() {}
 164
 165 bool GLSurface::Initialize() {
 166   return true;
 167 }
 168
 169 void GLSurface::DestroyAndTerminateDisplay() {
 170   Destroy();
 171 }
 172
 173 bool GLSurface::Resize(const gfx::Size& size) {
 174   NOTIMPLEMENTED();
 175   return false;
 176 }
 177
 178 bool GLSurface::Recreate() {
 179   NOTIMPLEMENTED();
 180   return false;
 181 }
 182
 183 bool GLSurface::DeferDraws() {
 184   return false;
 185 }
 186
 187 bool GLSurface::SupportsPostSubBuffer() {
 188   return false;
 189 }
 190
 191 unsigned int GLSurface::GetBackingFrameBufferObject() {
 192   return 0;
 193 }
 194
 195 bool GLSurface::SwapBuffersAsync(const SwapCompletionCallback& callback) {
 196   DCHECK(!IsSurfaceless());
 197   bool success = SwapBuffers();
 198   callback.Run();
 199   return success;
 200 }
 201
 202 bool GLSurface::PostSubBuffer(int x, int y, int width, int height) {
 203   return false;
 204 }
 205
 206 bool GLSurface::PostSubBufferAsync(int x,
 207                                    int y,
 208                                    int width,
 209                                    int height,
 210                                    const SwapCompletionCallback& callback) {
 211   bool success = PostSubBuffer(x, y, width, height);
 212   callback.Run();
 213   return success;
 214 }
 215
 216 bool GLSurface::OnMakeCurrent(GLContext* context) {
 217   return true;
 218 }
 219
 220 void GLSurface::NotifyWasBound() {
 221 }
 222
 223 bool GLSurface::SetBackbufferAllocation(bool allocated) {
 224   return true;
 225 }
 226
 227 void GLSurface::SetFrontbufferAllocation(bool allocated) {
 228 }
 229
 230 void* GLSurface::GetShareHandle() {
 231   NOTIMPLEMENTED();
 232   return NULL;
 233 }
 234
 235 void* GLSurface::GetDisplay() {
 236   NOTIMPLEMENTED();
 237   return NULL;
 238 }
 239
 240 void* GLSurface::GetConfig() {
 241   NOTIMPLEMENTED();
 242   return NULL;
 243 }
 244
 245 unsigned GLSurface::GetFormat() {
 246   NOTIMPLEMENTED();
 247   return 0;
 248 }
 249
 250 VSyncProvider* GLSurface::GetVSyncProvider() {
 251   return NULL;
 252 }
 253
 254 bool GLSurface::ScheduleOverlayPlane(int z_order,
 255                                      OverlayTransform transform,
 256                                      GLImage* image,
 257                                      const Rect& bounds_rect,
 258                                      const RectF& crop_rect) {
 259   NOTIMPLEMENTED();
 260   return false;
 261 }
 262
 263 bool GLSurface::IsSurfaceless() const {
 264   return false;
 265 }
 266
 267 GLSurface* GLSurface::GetCurrent() {
 268   return current_surface_.Pointer()->Get();
 269 }
 270
 271 GLSurface::~GLSurface() {
 272   if (GetCurrent() == this)
 273     SetCurrent(NULL);
 274 }
 275
 276 void GLSurface::SetCurrent(GLSurface* surface) {
 277   current_surface_.Pointer()->Set(surface);
 278 }
 279
 280 bool GLSurface::ExtensionsContain(const char* c_extensions, const char* name) {
 281   DCHECK(name);
 282   if (!c_extensions)
 283     return false;
 284   std::string extensions(c_extensions);
 285   extensions += " ";
 286
 287   std::string delimited_name(name);
 288   delimited_name += " ";
 289
 290   return extensions.find(delimited_name) != std::string::npos;
 291 }
 292
 293 void GLSurface::OnSetSwapInterval(int interval) {
 294 }
 295
 296 GLSurfaceAdapter::GLSurfaceAdapter(GLSurface* surface) : surface_(surface) {}
 297
 298 bool GLSurfaceAdapter::Initialize() {
 299   return surface_->Initialize();
 300 }
 301
 302 void GLSurfaceAdapter::Destroy() {
 303   surface_->Destroy();
 304 }
 305
 306 bool GLSurfaceAdapter::Resize(const gfx::Size& size) {
 307   return surface_->Resize(size);
 308 }
 309
 310 bool GLSurfaceAdapter::Recreate() {
 311   return surface_->Recreate();
 312 }
 313
 314 bool GLSurfaceAdapter::DeferDraws() {
 315   return surface_->DeferDraws();
 316 }
 317
 318 bool GLSurfaceAdapter::IsOffscreen() {
 319   return surface_->IsOffscreen();
 320 }
 321
 322 bool GLSurfaceAdapter::SwapBuffers() {
 323   return surface_->SwapBuffers();
 324 }
 325
 326 bool GLSurfaceAdapter::SwapBuffersAsync(
 327     const SwapCompletionCallback& callback) {
 328   return surface_->SwapBuffersAsync(callback);
 329 }
 330
 331 bool GLSurfaceAdapter::PostSubBuffer(int x, int y, int width, int height) {
 332   return surface_->PostSubBuffer(x, y, width, height);
 333 }
 334
 335 bool GLSurfaceAdapter::PostSubBufferAsync(
 336     int x, int y, int width, int height,
 337         const SwapCompletionCallback& callback) {
 338   return surface_->PostSubBufferAsync(x, y, width, height, callback);
 339 }
 340
 341 bool GLSurfaceAdapter::SupportsPostSubBuffer() {
 342   return surface_->SupportsPostSubBuffer();
 343 }
 344
 345 gfx::Size GLSurfaceAdapter::GetSize() {
 346   return surface_->GetSize();
 347 }
 348
 349 void* GLSurfaceAdapter::GetHandle() {
 350   return surface_->GetHandle();
 351 }
 352
 353 unsigned int GLSurfaceAdapter::GetBackingFrameBufferObject() {
 354   return surface_->GetBackingFrameBufferObject();
 355 }
 356
 357 bool GLSurfaceAdapter::OnMakeCurrent(GLContext* context) {
 358   return surface_->OnMakeCurrent(context);
 359 }
 360
 361 bool GLSurfaceAdapter::SetBackbufferAllocation(bool allocated) {
 362   return surface_->SetBackbufferAllocation(allocated);
 363 }
 364
 365 void GLSurfaceAdapter::SetFrontbufferAllocation(bool allocated) {
 366   surface_->SetFrontbufferAllocation(allocated);
 367 }
 368
 369 void* GLSurfaceAdapter::GetShareHandle() {
 370   return surface_->GetShareHandle();
 371 }
 372
 373 void* GLSurfaceAdapter::GetDisplay() {
 374   return surface_->GetDisplay();
 375 }
 376
 377 void* GLSurfaceAdapter::GetConfig() {
 378   return surface_->GetConfig();
 379 }
 380
 381 unsigned GLSurfaceAdapter::GetFormat() {
 382   return surface_->GetFormat();
 383 }
 384
 385 VSyncProvider* GLSurfaceAdapter::GetVSyncProvider() {
 386   return surface_->GetVSyncProvider();
 387 }
 388
 389 bool GLSurfaceAdapter::ScheduleOverlayPlane(int z_order,
 390                                             OverlayTransform transform,
 391                                             GLImage* image,
 392                                             const Rect& bounds_rect,
 393                                             const RectF& crop_rect) {
 394   return surface_->ScheduleOverlayPlane(
 395       z_order, transform, image, bounds_rect, crop_rect);
 396 }
 397
 398 bool GLSurfaceAdapter::IsSurfaceless() const {
 399   return surface_->IsSurfaceless();
 400 }
 401
 402 GLSurfaceAdapter::~GLSurfaceAdapter() {}
 403
 404 }  // namespace gfx