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/lazy_instance.h"
  12 #include "base/logging.h"
  13 #include "base/threading/thread_local.h"
  14 #include "base/trace_event/trace_event.h"
  15 #include "ui/gfx/swap_result.h"
  16 #include "ui/gl/gl_context.h"
  17 #include "ui/gl/gl_implementation.h"
  18 #include "ui/gl/gl_switches.h"
  19
  20 namespace gfx {
  21
  22 namespace {
  23 base::LazyInstance<base::ThreadLocalPointer<GLSurface> >::Leaky
  24     current_surface_ = LAZY_INSTANCE_INITIALIZER;
  25 }  // namespace
  26
  27 // static
  28 bool GLSurface::InitializeOneOff() {
  29   DCHECK_EQ(kGLImplementationNone, GetGLImplementation());
  30
  31   TRACE_EVENT0("gpu", "GLSurface::InitializeOneOff");
  32
  33   std::vector<GLImplementation> allowed_impls;
  34   GetAllowedGLImplementations(&allowed_impls);
  35   DCHECK(!allowed_impls.empty());
  36
  37   base::CommandLine* cmd = base::CommandLine::ForCurrentProcess();
  38
  39   // The default implementation is always the first one in list.
  40   GLImplementation impl = allowed_impls[0];
  41   bool fallback_to_osmesa = false;
  42   if (cmd->HasSwitch(switches::kOverrideUseGLWithOSMesaForTests)) {
  43     impl = kGLImplementationOSMesaGL;
  44   } else if (cmd->HasSwitch(switches::kUseGL)) {
  45     std::string requested_implementation_name =
  46         cmd->GetSwitchValueASCII(switches::kUseGL);
  47     if (requested_implementation_name == "any") {
  48       fallback_to_osmesa = true;
  49     } else if (requested_implementation_name == "swiftshader") {
  50       impl = kGLImplementationEGLGLES2;
  51     } else {
  52       impl = GetNamedGLImplementation(requested_implementation_name);
  53       if (std::find(allowed_impls.begin(),
  54                     allowed_impls.end(),
  55                     impl) == allowed_impls.end()) {
  56         LOG(ERROR) << "Requested GL implementation is not available.";
  57         return false;
  58       }
  59     }
  60   }
  61
  62   bool gpu_service_logging = cmd->HasSwitch(switches::kEnableGPUServiceLogging);
  63   bool disable_gl_drawing = cmd->HasSwitch(switches::kDisableGLDrawingForTests);
  64
  65   return InitializeOneOffImplementation(
  66       impl, fallback_to_osmesa, gpu_service_logging, disable_gl_drawing);
  67 }
  68
  69 // static
  70 bool GLSurface::InitializeOneOffImplementation(GLImplementation impl,
  71                                                bool fallback_to_osmesa,
  72                                                bool gpu_service_logging,
  73                                                bool disable_gl_drawing) {
  74   bool initialized =
  75       InitializeStaticGLBindings(impl) && InitializeOneOffInternal();
  76   if (!initialized && fallback_to_osmesa) {
  77     ClearGLBindings();
  78     initialized = InitializeStaticGLBindings(kGLImplementationOSMesaGL) &&
  79                   InitializeOneOffInternal();
  80   }
  81   if (!initialized)
  82     ClearGLBindings();
  83
  84   if (initialized) {
  85     DVLOG(1) << "Using "
  86              << GetGLImplementationName(GetGLImplementation())
  87              << " GL implementation.";
  88     if (gpu_service_logging)
  89       InitializeDebugGLBindings();
  90     if (disable_gl_drawing)
  91       InitializeNullDrawGLBindings();
  92   }
  93   return initialized;
  94 }
  95
  96 GLSurface::GLSurface() {}
  97
  98 bool GLSurface::Initialize() {
  99   return true;
 100 }
 101
 102 bool GLSurface::Resize(const gfx::Size& size) {
 103   NOTIMPLEMENTED();
 104   return false;
 105 }
 106
 107 bool GLSurface::Recreate() {
 108   NOTIMPLEMENTED();
 109   return false;
 110 }
 111
 112 bool GLSurface::DeferDraws() {
 113   return false;
 114 }
 115
 116 bool GLSurface::SupportsPostSubBuffer() {
 117   return false;
 118 }
 119
 120 unsigned int GLSurface::GetBackingFrameBufferObject() {
 121   return 0;
 122 }
 123
 124 bool GLSurface::SwapBuffersAsync(const SwapCompletionCallback& callback) {
 125   DCHECK(!IsSurfaceless());
 126   gfx::SwapResult result = SwapBuffers();
 127   callback.Run(result);
 128   return result == gfx::SwapResult::SWAP_ACK;
 129 }
 130
 131 gfx::SwapResult GLSurface::PostSubBuffer(int x, int y, int width, int height) {
 132   return gfx::SwapResult::SWAP_FAILED;
 133 }
 134
 135 bool GLSurface::PostSubBufferAsync(int x,
 136                                    int y,
 137                                    int width,
 138                                    int height,
 139                                    const SwapCompletionCallback& callback) {
 140   gfx::SwapResult result = PostSubBuffer(x, y, width, height);
 141   callback.Run(result);
 142   return result == gfx::SwapResult::SWAP_ACK;
 143 }
 144
 145 bool GLSurface::OnMakeCurrent(GLContext* context) {
 146   return true;
 147 }
 148
 149 void GLSurface::NotifyWasBound() {
 150 }
 151
 152 bool GLSurface::SetBackbufferAllocation(bool allocated) {
 153   return true;
 154 }
 155
 156 void GLSurface::SetFrontbufferAllocation(bool allocated) {
 157 }
 158
 159 void* GLSurface::GetShareHandle() {
 160   NOTIMPLEMENTED();
 161   return NULL;
 162 }
 163
 164 void* GLSurface::GetDisplay() {
 165   NOTIMPLEMENTED();
 166   return NULL;
 167 }
 168
 169 void* GLSurface::GetConfig() {
 170   NOTIMPLEMENTED();
 171   return NULL;
 172 }
 173
 174 unsigned GLSurface::GetFormat() {
 175   NOTIMPLEMENTED();
 176   return 0;
 177 }
 178
 179 VSyncProvider* GLSurface::GetVSyncProvider() {
 180   return NULL;
 181 }
 182
 183 bool GLSurface::ScheduleOverlayPlane(int z_order,
 184                                      OverlayTransform transform,
 185                                      GLImage* image,
 186                                      const Rect& bounds_rect,
 187                                      const RectF& crop_rect) {
 188   NOTIMPLEMENTED();
 189   return false;
 190 }
 191
 192 bool GLSurface::IsSurfaceless() const {
 193   return false;
 194 }
 195
 196 GLSurface* GLSurface::GetCurrent() {
 197   return current_surface_.Pointer()->Get();
 198 }
 199
 200 GLSurface::~GLSurface() {
 201   if (GetCurrent() == this)
 202     SetCurrent(NULL);
 203 }
 204
 205 void GLSurface::SetCurrent(GLSurface* surface) {
 206   current_surface_.Pointer()->Set(surface);
 207 }
 208
 209 bool GLSurface::ExtensionsContain(const char* c_extensions, const char* name) {
 210   DCHECK(name);
 211   if (!c_extensions)
 212     return false;
 213   std::string extensions(c_extensions);
 214   extensions += " ";
 215
 216   std::string delimited_name(name);
 217   delimited_name += " ";
 218
 219   return extensions.find(delimited_name) != std::string::npos;
 220 }
 221
 222 void GLSurface::OnSetSwapInterval(int interval) {
 223 }
 224
 225 GLSurfaceAdapter::GLSurfaceAdapter(GLSurface* surface) : surface_(surface) {}
 226
 227 bool GLSurfaceAdapter::Initialize() {
 228   return surface_->Initialize();
 229 }
 230
 231 void GLSurfaceAdapter::Destroy() {
 232   surface_->Destroy();
 233 }
 234
 235 bool GLSurfaceAdapter::Resize(const gfx::Size& size) {
 236   return surface_->Resize(size);
 237 }
 238
 239 bool GLSurfaceAdapter::Recreate() {
 240   return surface_->Recreate();
 241 }
 242
 243 bool GLSurfaceAdapter::DeferDraws() {
 244   return surface_->DeferDraws();
 245 }
 246
 247 bool GLSurfaceAdapter::IsOffscreen() {
 248   return surface_->IsOffscreen();
 249 }
 250
 251 gfx::SwapResult GLSurfaceAdapter::SwapBuffers() {
 252   return surface_->SwapBuffers();
 253 }
 254
 255 bool GLSurfaceAdapter::SwapBuffersAsync(
 256     const SwapCompletionCallback& callback) {
 257   return surface_->SwapBuffersAsync(callback);
 258 }
 259
 260 gfx::SwapResult GLSurfaceAdapter::PostSubBuffer(int x,
 261                                                 int y,
 262                                                 int width,
 263                                                 int height) {
 264   return surface_->PostSubBuffer(x, y, width, height);
 265 }
 266
 267 bool GLSurfaceAdapter::PostSubBufferAsync(
 268     int x, int y, int width, int height,
 269         const SwapCompletionCallback& callback) {
 270   return surface_->PostSubBufferAsync(x, y, width, height, callback);
 271 }
 272
 273 bool GLSurfaceAdapter::SupportsPostSubBuffer() {
 274   return surface_->SupportsPostSubBuffer();
 275 }
 276
 277 gfx::Size GLSurfaceAdapter::GetSize() {
 278   return surface_->GetSize();
 279 }
 280
 281 void* GLSurfaceAdapter::GetHandle() {
 282   return surface_->GetHandle();
 283 }
 284
 285 unsigned int GLSurfaceAdapter::GetBackingFrameBufferObject() {
 286   return surface_->GetBackingFrameBufferObject();
 287 }
 288
 289 bool GLSurfaceAdapter::OnMakeCurrent(GLContext* context) {
 290   return surface_->OnMakeCurrent(context);
 291 }
 292
 293 bool GLSurfaceAdapter::SetBackbufferAllocation(bool allocated) {
 294   return surface_->SetBackbufferAllocation(allocated);
 295 }
 296
 297 void GLSurfaceAdapter::SetFrontbufferAllocation(bool allocated) {
 298   surface_->SetFrontbufferAllocation(allocated);
 299 }
 300
 301 void* GLSurfaceAdapter::GetShareHandle() {
 302   return surface_->GetShareHandle();
 303 }
 304
 305 void* GLSurfaceAdapter::GetDisplay() {
 306   return surface_->GetDisplay();
 307 }
 308
 309 void* GLSurfaceAdapter::GetConfig() {
 310   return surface_->GetConfig();
 311 }
 312
 313 unsigned GLSurfaceAdapter::GetFormat() {
 314   return surface_->GetFormat();
 315 }
 316
 317 VSyncProvider* GLSurfaceAdapter::GetVSyncProvider() {
 318   return surface_->GetVSyncProvider();
 319 }
 320
 321 bool GLSurfaceAdapter::ScheduleOverlayPlane(int z_order,
 322                                             OverlayTransform transform,
 323                                             GLImage* image,
 324                                             const Rect& bounds_rect,
 325                                             const RectF& crop_rect) {
 326   return surface_->ScheduleOverlayPlane(
 327       z_order, transform, image, bounds_rect, crop_rect);
 328 }
 329
 330 bool GLSurfaceAdapter::IsSurfaceless() const {
 331   return surface_->IsSurfaceless();
 332 }
 333
 334 GLSurfaceAdapter::~GLSurfaceAdapter() {}
 335
 336 }  // namespace gfx