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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 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 "content/renderer/gpu/mailbox_output_surface.h" | 5 #include "content/renderer/gpu/mailbox_output_surface.h" |
| 6 | 6 |
| 7 #include "base/logging.h" | 7 #include "base/logging.h" |
| 8 #include "cc/output/compositor_frame.h" | 8 #include "cc/output/compositor_frame.h" |
| 9 #include "cc/output/compositor_frame_ack.h" | 9 #include "cc/output/compositor_frame_ack.h" |
| 10 #include "cc/output/gl_frame_data.h" | 10 #include "cc/output/gl_frame_data.h" |
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| 46 context_provider_->Context3d()->deleteTexture( | 46 context_provider_->Context3d()->deleteTexture( |
| 47 pending_textures_.front().texture_id); | 47 pending_textures_.front().texture_id); |
| 48 } | 48 } |
| 49 pending_textures_.pop_front(); | 49 pending_textures_.pop_front(); |
| 50 } | 50 } |
| 51 } | 51 } |
| 52 | 52 |
| 53 void MailboxOutputSurface::EnsureBackbuffer() { | 53 void MailboxOutputSurface::EnsureBackbuffer() { |
| 54 is_backbuffer_discarded_ = false; | 54 is_backbuffer_discarded_ = false; |
| 55 | 55 |
| 56 WebKit::WebGraphicsContext3D* context3d = context_provider_->Context3d(); | 56 blink::WebGraphicsContext3D* context3d = context_provider_->Context3d(); |
| 57 | 57 |
| 58 if (!current_backing_.texture_id) { | 58 if (!current_backing_.texture_id) { |
| 59 // Find a texture of matching size to recycle. | 59 // Find a texture of matching size to recycle. |
| 60 while (!returned_textures_.empty()) { | 60 while (!returned_textures_.empty()) { |
| 61 TransferableFrame& texture = returned_textures_.front(); | 61 TransferableFrame& texture = returned_textures_.front(); |
| 62 if (texture.size == surface_size_) { | 62 if (texture.size == surface_size_) { |
| 63 current_backing_ = texture; | 63 current_backing_ = texture; |
| 64 if (current_backing_.sync_point) | 64 if (current_backing_.sync_point) |
| 65 context3d->waitSyncPoint(current_backing_.sync_point); | 65 context3d->waitSyncPoint(current_backing_.sync_point); |
| 66 returned_textures_.pop(); | 66 returned_textures_.pop(); |
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| 96 context3d->genMailboxCHROMIUM(current_backing_.mailbox.name); | 96 context3d->genMailboxCHROMIUM(current_backing_.mailbox.name); |
| 97 context3d->produceTextureCHROMIUM( | 97 context3d->produceTextureCHROMIUM( |
| 98 GL_TEXTURE_2D, current_backing_.mailbox.name); | 98 GL_TEXTURE_2D, current_backing_.mailbox.name); |
| 99 } | 99 } |
| 100 } | 100 } |
| 101 } | 101 } |
| 102 | 102 |
| 103 void MailboxOutputSurface::DiscardBackbuffer() { | 103 void MailboxOutputSurface::DiscardBackbuffer() { |
| 104 is_backbuffer_discarded_ = true; | 104 is_backbuffer_discarded_ = true; |
| 105 | 105 |
| 106 WebKit::WebGraphicsContext3D* context3d = context_provider_->Context3d(); | 106 blink::WebGraphicsContext3D* context3d = context_provider_->Context3d(); |
| 107 | 107 |
| 108 if (current_backing_.texture_id) { | 108 if (current_backing_.texture_id) { |
| 109 context3d->deleteTexture(current_backing_.texture_id); | 109 context3d->deleteTexture(current_backing_.texture_id); |
| 110 current_backing_ = TransferableFrame(); | 110 current_backing_ = TransferableFrame(); |
| 111 } | 111 } |
| 112 | 112 |
| 113 while (!returned_textures_.empty()) { | 113 while (!returned_textures_.empty()) { |
| 114 const TransferableFrame& frame = returned_textures_.front(); | 114 const TransferableFrame& frame = returned_textures_.front(); |
| 115 context3d->deleteTexture(frame.texture_id); | 115 context3d->deleteTexture(frame.texture_id); |
| 116 returned_textures_.pop(); | 116 returned_textures_.pop(); |
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| 130 surface_size_ = size; | 130 surface_size_ = size; |
| 131 device_scale_factor_ = scale_factor; | 131 device_scale_factor_ = scale_factor; |
| 132 DiscardBackbuffer(); | 132 DiscardBackbuffer(); |
| 133 EnsureBackbuffer(); | 133 EnsureBackbuffer(); |
| 134 } | 134 } |
| 135 | 135 |
| 136 void MailboxOutputSurface::BindFramebuffer() { | 136 void MailboxOutputSurface::BindFramebuffer() { |
| 137 EnsureBackbuffer(); | 137 EnsureBackbuffer(); |
| 138 DCHECK(current_backing_.texture_id); | 138 DCHECK(current_backing_.texture_id); |
| 139 | 139 |
| 140 WebKit::WebGraphicsContext3D* context3d = context_provider_->Context3d(); | 140 blink::WebGraphicsContext3D* context3d = context_provider_->Context3d(); |
| 141 | 141 |
| 142 if (!fbo_) | 142 if (!fbo_) |
| 143 fbo_ = context3d->createFramebuffer(); | 143 fbo_ = context3d->createFramebuffer(); |
| 144 context3d->bindFramebuffer(GL_FRAMEBUFFER, fbo_); | 144 context3d->bindFramebuffer(GL_FRAMEBUFFER, fbo_); |
| 145 context3d->framebufferTexture2D( | 145 context3d->framebufferTexture2D( |
| 146 GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, | 146 GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, |
| 147 current_backing_.texture_id, 0); | 147 current_backing_.texture_id, 0); |
| 148 } | 148 } |
| 149 | 149 |
| 150 void MailboxOutputSurface::OnSwapAck(uint32 output_surface_id, | 150 void MailboxOutputSurface::OnSwapAck(uint32 output_surface_id, |
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| 209 pending_textures_.push_back(current_backing_); | 209 pending_textures_.push_back(current_backing_); |
| 210 current_backing_ = TransferableFrame(); | 210 current_backing_ = TransferableFrame(); |
| 211 } | 211 } |
| 212 | 212 |
| 213 size_t MailboxOutputSurface::GetNumAcksPending() { | 213 size_t MailboxOutputSurface::GetNumAcksPending() { |
| 214 DCHECK(pending_textures_.size()); | 214 DCHECK(pending_textures_.size()); |
| 215 return pending_textures_.size() - 1; | 215 return pending_textures_.size() - 1; |
| 216 } | 216 } |
| 217 | 217 |
| 218 } // namespace content | 218 } // namespace content |
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