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Side by Side Diff: content/renderer/compositor_bindings/web_external_texture_layer_impl.cc

Issue 470983004: Move blink<->cc bindings to cc/blink (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: rebase Created 6 years, 4 months ago
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1 // Copyright 2014 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 "content/renderer/compositor_bindings/web_external_texture_layer_impl.h "
6
7 #include "cc/layers/texture_layer.h"
8 #include "cc/resources/resource_update_queue.h"
9 #include "cc/resources/single_release_callback.h"
10 #include "cc/resources/texture_mailbox.h"
11 #include "content/renderer/compositor_bindings/web_external_bitmap_impl.h"
12 #include "content/renderer/compositor_bindings/web_layer_impl.h"
13 #include "third_party/WebKit/public/platform/WebExternalTextureLayerClient.h"
14 #include "third_party/WebKit/public/platform/WebExternalTextureMailbox.h"
15 #include "third_party/WebKit/public/platform/WebFloatRect.h"
16 #include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
17 #include "third_party/WebKit/public/platform/WebSize.h"
18 #include "third_party/khronos/GLES2/gl2.h"
19
20 using cc::TextureLayer;
21 using cc::ResourceUpdateQueue;
22
23 namespace content {
24
25 WebExternalTextureLayerImpl::WebExternalTextureLayerImpl(
26 blink::WebExternalTextureLayerClient* client)
27 : client_(client) {
28 cc::TextureLayerClient* cc_client = client_ ? this : NULL;
29 scoped_refptr<TextureLayer> layer = TextureLayer::CreateForMailbox(cc_client);
30 layer->SetIsDrawable(true);
31 layer_.reset(new WebLayerImpl(layer));
32 }
33
34 WebExternalTextureLayerImpl::~WebExternalTextureLayerImpl() {
35 static_cast<TextureLayer*>(layer_->layer())->ClearClient();
36 }
37
38 blink::WebLayer* WebExternalTextureLayerImpl::layer() {
39 return layer_.get();
40 }
41
42 void WebExternalTextureLayerImpl::clearTexture() {
43 TextureLayer* layer = static_cast<TextureLayer*>(layer_->layer());
44 layer->ClearTexture();
45 }
46
47 void WebExternalTextureLayerImpl::setOpaque(bool opaque) {
48 static_cast<TextureLayer*>(layer_->layer())->SetContentsOpaque(opaque);
49 }
50
51 void WebExternalTextureLayerImpl::setPremultipliedAlpha(
52 bool premultiplied_alpha) {
53 static_cast<TextureLayer*>(layer_->layer())->SetPremultipliedAlpha(
54 premultiplied_alpha);
55 }
56
57 void WebExternalTextureLayerImpl::setBlendBackgroundColor(bool blend) {
58 static_cast<TextureLayer*>(layer_->layer())->SetBlendBackgroundColor(blend);
59 }
60
61 void WebExternalTextureLayerImpl::setRateLimitContext(bool rate_limit) {
62 static_cast<TextureLayer*>(layer_->layer())->SetRateLimitContext(rate_limit);
63 }
64
65 bool WebExternalTextureLayerImpl::PrepareTextureMailbox(
66 cc::TextureMailbox* mailbox,
67 scoped_ptr<cc::SingleReleaseCallback>* release_callback,
68 bool use_shared_memory) {
69 blink::WebExternalTextureMailbox client_mailbox;
70 WebExternalBitmapImpl* bitmap = NULL;
71
72 if (use_shared_memory)
73 bitmap = AllocateBitmap();
74 if (!client_->prepareMailbox(&client_mailbox, bitmap)) {
75 if (bitmap)
76 free_bitmaps_.push_back(bitmap);
77 return false;
78 }
79 gpu::Mailbox name;
80 name.SetName(client_mailbox.name);
81 if (bitmap) {
82 *mailbox = cc::TextureMailbox(bitmap->shared_memory(), bitmap->size());
83 } else {
84 *mailbox =
85 cc::TextureMailbox(name, GL_TEXTURE_2D, client_mailbox.syncPoint);
86 }
87 mailbox->set_allow_overlay(client_mailbox.allowOverlay);
88
89 if (mailbox->IsValid()) {
90 *release_callback = cc::SingleReleaseCallback::Create(
91 base::Bind(&WebExternalTextureLayerImpl::DidReleaseMailbox,
92 this->AsWeakPtr(),
93 client_mailbox,
94 bitmap));
95 }
96
97 return true;
98 }
99
100 WebExternalBitmapImpl* WebExternalTextureLayerImpl::AllocateBitmap() {
101 if (!free_bitmaps_.empty()) {
102 WebExternalBitmapImpl* result = free_bitmaps_.back();
103 free_bitmaps_.weak_erase(free_bitmaps_.end() - 1);
104 return result;
105 }
106 return new WebExternalBitmapImpl;
107 }
108
109 // static
110 void WebExternalTextureLayerImpl::DidReleaseMailbox(
111 base::WeakPtr<WebExternalTextureLayerImpl> layer,
112 const blink::WebExternalTextureMailbox& mailbox,
113 WebExternalBitmapImpl* bitmap,
114 unsigned sync_point,
115 bool lost_resource) {
116 DCHECK(layer);
117 blink::WebExternalTextureMailbox available_mailbox;
118 memcpy(available_mailbox.name, mailbox.name, sizeof(available_mailbox.name));
119 available_mailbox.syncPoint = sync_point;
120 if (bitmap)
121 layer->free_bitmaps_.push_back(bitmap);
122 layer->client_->mailboxReleased(available_mailbox, lost_resource);
123 }
124
125 } // namespace content
126
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