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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "ui/gfx/surface/accelerated_surface_mac.h" | 5 #include "ui/gfx/surface/accelerated_surface_mac.h" |
| 6 | 6 |
| 7 #include "base/logging.h" | 7 #include "base/logging.h" |
| 8 #include "base/mac/scoped_cftyperef.h" | 8 #include "base/mac/scoped_cftyperef.h" |
| 9 #include "ui/gfx/gl/gl_bindings.h" | 9 #include "ui/gfx/gl/gl_bindings.h" |
| 10 #include "ui/gfx/gl/gl_implementation.h" | 10 #include "ui/gfx/gl/gl_implementation.h" |
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| 28 | 28 |
| 29 // Ensure GL is initialized before trying to create an offscreen GL context. | 29 // Ensure GL is initialized before trying to create an offscreen GL context. |
| 30 if (!gfx::GLSurface::InitializeOneOff()) | 30 if (!gfx::GLSurface::InitializeOneOff()) |
| 31 return false; | 31 return false; |
| 32 | 32 |
| 33 // Drawing to IOSurfaces via OpenGL only works with desktop GL and | 33 // Drawing to IOSurfaces via OpenGL only works with desktop GL and |
| 34 // not with the OSMesa software renderer. | 34 // not with the OSMesa software renderer. |
| 35 if (gfx::GetGLImplementation() != gfx::kGLImplementationDesktopGL) | 35 if (gfx::GetGLImplementation() != gfx::kGLImplementationDesktopGL) |
| 36 return false; | 36 return false; |
| 37 | 37 |
| 38 scoped_ptr<gfx::GLSurface> surface(gfx::GLSurface::CreateOffscreenGLSurface( | 38 gl_surface_.reset(gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size(1, 1))); |
| 39 gfx::Size(1, 1))); | 39 if (!gl_surface_.get()) { |
| 40 if (!surface.get()) { | |
| 41 Destroy(); | 40 Destroy(); |
| 42 return false; | 41 return false; |
| 43 } | 42 } |
| 44 | 43 |
| 45 gl_context_.reset(gfx::GLContext::CreateGLContext(surface.release(), | 44 gl_context_.reset(gfx::GLContext::CreateGLContext(share_context, |
| 46 share_context)); | 45 gl_surface_.get())); |
| 47 if (!gl_context_.get()) { | 46 if (!gl_context_.get()) { |
| 48 Destroy(); | 47 Destroy(); |
| 49 return false; | 48 return false; |
| 50 } | 49 } |
| 51 | 50 |
| 52 // Now we're ready to handle SetSurfaceSize calls, which will | 51 // Now we're ready to handle SetSurfaceSize calls, which will |
| 53 // allocate and/or reallocate the IOSurface and associated offscreen | 52 // allocate and/or reallocate the IOSurface and associated offscreen |
| 54 // OpenGL structures for rendering. | 53 // OpenGL structures for rendering. |
| 55 return true; | 54 return true; |
| 56 } | 55 } |
| 57 | 56 |
| 58 void AcceleratedSurface::Destroy() { | 57 void AcceleratedSurface::Destroy() { |
| 59 // The FBO and texture objects will be destroyed when the OpenGL context, | 58 // The FBO and texture objects will be destroyed when the OpenGL context, |
| 60 // and any other contexts sharing resources with it, is. We don't want to | 59 // and any other contexts sharing resources with it, is. We don't want to |
| 61 // make the context current one last time here just in order to delete | 60 // make the context current one last time here just in order to delete |
| 62 // these objects. | 61 // these objects. |
| 63 | 62 |
| 64 // Release the old TransportDIB in the browser. | 63 // Release the old TransportDIB in the browser. |
| 65 if (dib_free_callback_.get() && transport_dib_.get()) { | 64 if (dib_free_callback_.get() && transport_dib_.get()) { |
| 66 dib_free_callback_->Run(transport_dib_->id()); | 65 dib_free_callback_->Run(transport_dib_->id()); |
| 67 } | 66 } |
| 68 transport_dib_.reset(); | 67 transport_dib_.reset(); |
| 69 | 68 |
| 70 if (gl_context_.get()) | |
| 71 gl_context_->Destroy(); | |
| 72 gl_context_.reset(); | 69 gl_context_.reset(); |
| 70 gl_surface_.reset(); |
| 73 } | 71 } |
| 74 | 72 |
| 75 // Call after making changes to the surface which require a visual update. | 73 // Call after making changes to the surface which require a visual update. |
| 76 // Makes the rendering show up in other processes. | 74 // Makes the rendering show up in other processes. |
| 77 void AcceleratedSurface::SwapBuffers() { | 75 void AcceleratedSurface::SwapBuffers() { |
| 78 if (io_surface_.get() != NULL) { | 76 if (io_surface_.get() != NULL) { |
| 79 if (allocate_fbo_) { | 77 if (allocate_fbo_) { |
| 80 // Bind and unbind the framebuffer to make changes to the | 78 // Bind and unbind the framebuffer to make changes to the |
| 81 // IOSurface show up in the other process. | 79 // IOSurface show up in the other process. |
| 82 glFlush(); | 80 glFlush(); |
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| 192 GL_RENDERBUFFER_EXT, | 190 GL_RENDERBUFFER_EXT, |
| 193 depth_stencil_renderbuffer_); | 191 depth_stencil_renderbuffer_); |
| 194 fbo_status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); | 192 fbo_status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); |
| 195 } | 193 } |
| 196 return fbo_status == GL_FRAMEBUFFER_COMPLETE_EXT; | 194 return fbo_status == GL_FRAMEBUFFER_COMPLETE_EXT; |
| 197 } | 195 } |
| 198 | 196 |
| 199 bool AcceleratedSurface::MakeCurrent() { | 197 bool AcceleratedSurface::MakeCurrent() { |
| 200 if (!gl_context_.get()) | 198 if (!gl_context_.get()) |
| 201 return false; | 199 return false; |
| 202 return gl_context_->MakeCurrent(); | 200 return gl_context_->MakeCurrent(gl_surface_.get()); |
| 203 } | 201 } |
| 204 | 202 |
| 205 void AcceleratedSurface::Clear(const gfx::Rect& rect) { | 203 void AcceleratedSurface::Clear(const gfx::Rect& rect) { |
| 206 DCHECK(gl_context_->IsCurrent()); | 204 DCHECK(gl_context_->IsCurrent(gl_surface_.get())); |
| 207 glClearColor(0, 0, 0, 0); | 205 glClearColor(0, 0, 0, 0); |
| 208 glViewport(0, 0, rect.width(), rect.height()); | 206 glViewport(0, 0, rect.width(), rect.height()); |
| 209 glMatrixMode(GL_PROJECTION); | 207 glMatrixMode(GL_PROJECTION); |
| 210 glLoadIdentity(); | 208 glLoadIdentity(); |
| 211 glOrtho(0, rect.width(), 0, rect.height(), -1, 1); | 209 glOrtho(0, rect.width(), 0, rect.height(), -1, 1); |
| 212 glClear(GL_COLOR_BUFFER_BIT); | 210 glClear(GL_COLOR_BUFFER_BIT); |
| 213 } | 211 } |
| 214 | 212 |
| 215 uint64 AcceleratedSurface::SetSurfaceSize(const gfx::Size& size) { | 213 uint64 AcceleratedSurface::SetSurfaceSize(const gfx::Size& size) { |
| 216 if (surface_size_ == size) { | 214 if (surface_size_ == size) { |
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| 327 return TransportDIB::DefaultHandleValue(); | 325 return TransportDIB::DefaultHandleValue(); |
| 328 } | 326 } |
| 329 transport_dib_.reset(TransportDIB::Map(dib_handle)); | 327 transport_dib_.reset(TransportDIB::Map(dib_handle)); |
| 330 if (transport_dib_.get() == NULL) { | 328 if (transport_dib_.get() == NULL) { |
| 331 // TODO(dspringer): if the Map() fails, should the deallocator be run so | 329 // TODO(dspringer): if the Map() fails, should the deallocator be run so |
| 332 // that the DIB is deallocated in the browser? | 330 // that the DIB is deallocated in the browser? |
| 333 return TransportDIB::DefaultHandleValue(); | 331 return TransportDIB::DefaultHandleValue(); |
| 334 } | 332 } |
| 335 | 333 |
| 336 if (allocate_fbo_) { | 334 if (allocate_fbo_) { |
| 337 DCHECK(gl_context_->IsCurrent()); | 335 DCHECK(gl_context_->IsCurrent(gl_surface_.get())); |
| 338 // Set up the render buffers and reserve enough space on the card for the | 336 // Set up the render buffers and reserve enough space on the card for the |
| 339 // framebuffer texture. | 337 // framebuffer texture. |
| 340 GLenum target = GL_TEXTURE_RECTANGLE_ARB; | 338 GLenum target = GL_TEXTURE_RECTANGLE_ARB; |
| 341 AllocateRenderBuffers(target, size); | 339 AllocateRenderBuffers(target, size); |
| 342 glTexImage2D(target, | 340 glTexImage2D(target, |
| 343 0, // mipmap level 0 | 341 0, // mipmap level 0 |
| 344 GL_RGBA8, // internal pixel format | 342 GL_RGBA8, // internal pixel format |
| 345 size.width(), | 343 size.width(), |
| 346 size.height(), | 344 size.height(), |
| 347 0, // 0 border | 345 0, // 0 border |
| 348 GL_BGRA, // Used for consistency | 346 GL_BGRA, // Used for consistency |
| 349 GL_UNSIGNED_INT_8_8_8_8_REV, | 347 GL_UNSIGNED_INT_8_8_8_8_REV, |
| 350 NULL); // No data, just reserve room on the card. | 348 NULL); // No data, just reserve room on the card. |
| 351 SetupFrameBufferObject(target); | 349 SetupFrameBufferObject(target); |
| 352 } | 350 } |
| 353 return transport_dib_->handle(); | 351 return transport_dib_->handle(); |
| 354 } | 352 } |
| 355 | 353 |
| 356 void AcceleratedSurface::SetTransportDIBAllocAndFree( | 354 void AcceleratedSurface::SetTransportDIBAllocAndFree( |
| 357 Callback2<size_t, TransportDIB::Handle*>::Type* allocator, | 355 Callback2<size_t, TransportDIB::Handle*>::Type* allocator, |
| 358 Callback1<TransportDIB::Id>::Type* deallocator) { | 356 Callback1<TransportDIB::Id>::Type* deallocator) { |
| 359 dib_alloc_callback_.reset(allocator); | 357 dib_alloc_callback_.reset(allocator); |
| 360 dib_free_callback_.reset(deallocator); | 358 dib_free_callback_.reset(deallocator); |
| 361 } | 359 } |
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