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| 1 // Copyright (c) 2013 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 "cc/output_surface.h" | |
| 6 | |
| 7 #include <set> | |
| 8 #include <string> | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "base/logging.h" | |
| 12 #include "base/string_util.h" | |
| 13 #include "base/strings/string_split.h" | |
| 14 #include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3
D.h" | |
| 15 #include "third_party/khronos/GLES2/gl2.h" | |
| 16 #include "third_party/khronos/GLES2/gl2ext.h" | |
| 17 #include "ui/gfx/rect.h" | |
| 18 #include "ui/gfx/size.h" | |
| 19 | |
| 20 using std::set; | |
| 21 using std::string; | |
| 22 using std::vector; | |
| 23 | |
| 24 namespace cc { | |
| 25 | |
| 26 OutputSurface::OutputSurface( | |
| 27 scoped_ptr<WebKit::WebGraphicsContext3D> context3d) | |
| 28 : client_(NULL), | |
| 29 context3d_(context3d.Pass()), | |
| 30 has_gl_discard_backbuffer_(false) { | |
| 31 } | |
| 32 | |
| 33 OutputSurface::OutputSurface( | |
| 34 scoped_ptr<cc::SoftwareOutputDevice> software_device) | |
| 35 : client_(NULL), | |
| 36 software_device_(software_device.Pass()), | |
| 37 has_gl_discard_backbuffer_(false) { | |
| 38 } | |
| 39 | |
| 40 OutputSurface::OutputSurface( | |
| 41 scoped_ptr<WebKit::WebGraphicsContext3D> context3d, | |
| 42 scoped_ptr<cc::SoftwareOutputDevice> software_device) | |
| 43 : client_(NULL), | |
| 44 context3d_(context3d.Pass()), | |
| 45 software_device_(software_device.Pass()), | |
| 46 has_gl_discard_backbuffer_(false) { | |
| 47 } | |
| 48 | |
| 49 OutputSurface::~OutputSurface() { | |
| 50 } | |
| 51 | |
| 52 bool OutputSurface::BindToClient( | |
| 53 cc::OutputSurfaceClient* client) { | |
| 54 DCHECK(client); | |
| 55 client_ = client; | |
| 56 if (!context3d_) | |
| 57 return true; | |
| 58 if (!context3d_->makeContextCurrent()) | |
| 59 return false; | |
| 60 | |
| 61 string extensionsString = UTF16ToASCII(context3d_->getString(GL_EXTENSIONS)); | |
| 62 vector<string> extensionsList; | |
| 63 base::SplitString(extensionsString, ' ', &extensionsList); | |
| 64 set<string> extensions(extensionsList.begin(), extensionsList.end()); | |
| 65 | |
| 66 has_gl_discard_backbuffer_ = | |
| 67 extensions.count("GL_CHROMIUM_discard_backbuffer"); | |
| 68 | |
| 69 return true; | |
| 70 } | |
| 71 | |
| 72 void OutputSurface::SendFrameToParentCompositor(CompositorFrame*) { | |
| 73 NOTIMPLEMENTED(); | |
| 74 } | |
| 75 | |
| 76 void OutputSurface::EnsureBackbuffer() { | |
| 77 DCHECK(context3d_); | |
| 78 if (has_gl_discard_backbuffer_) | |
| 79 context3d_->ensureBackbufferCHROMIUM(); | |
| 80 } | |
| 81 | |
| 82 void OutputSurface::DiscardBackbuffer() { | |
| 83 DCHECK(context3d_); | |
| 84 if (has_gl_discard_backbuffer_) | |
| 85 context3d_->discardBackbufferCHROMIUM(); | |
| 86 } | |
| 87 | |
| 88 void OutputSurface::Reshape(gfx::Size size) { | |
| 89 DCHECK(context3d_); | |
| 90 context3d_->reshape(size.width(), size.height()); | |
| 91 } | |
| 92 | |
| 93 void OutputSurface::BindFramebuffer() { | |
| 94 DCHECK(context3d_); | |
| 95 context3d_->bindFramebuffer(GL_FRAMEBUFFER, 0); | |
| 96 } | |
| 97 | |
| 98 void OutputSurface::SwapBuffers() { | |
| 99 DCHECK(context3d_); | |
| 100 // Note that currently this has the same effect as swapBuffers; we should | |
| 101 // consider exposing a different entry point on WebGraphicsContext3D. | |
| 102 context3d_->prepareTexture(); | |
| 103 } | |
| 104 | |
| 105 void OutputSurface::PostSubBuffer(gfx::Rect rect) { | |
| 106 DCHECK(context3d_); | |
| 107 context3d_->postSubBufferCHROMIUM( | |
| 108 rect.x(), rect.y(), rect.width(), rect.height()); | |
| 109 } | |
| 110 | |
| 111 } // namespace cc | |
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Chromium Code Reviews
Issue 12912006:
Part 4 of cc/ directory shuffles: output (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src