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Side by Side Diff: third_party/WebKit/Source/platform/graphics/MailboxTextureHolder.cpp

Issue 2455983005: Refactor AcceleratedStaticBitmapImage (Closed)
Patch Set: deleteTexture in desctructor Created 4 years, 1 month ago
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1 // Copyright 2016 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 "platform/graphics/MailboxTextureHolder.h"
6
7 #include "gpu/command_buffer/client/gles2_interface.h"
8 #include "platform/graphics/gpu/SharedGpuContext.h"
9 #include "public/platform/Platform.h"
10 #include "skia/ext/texture_handle.h"
11 #include "third_party/skia/include/gpu/GrContext.h"
12
13 namespace blink {
14
15 MailboxTextureHolder::MailboxTextureHolder(const gpu::Mailbox& mailbox,
16 const gpu::SyncToken& syncToken,
17 unsigned textureId,
18 gpu::gles2::GLES2Interface* gl,
19 IntSize mailboxSize)
20 : m_mailbox(mailbox),
21 m_syncToken(syncToken),
22 m_textureId(textureId),
Justin Novosad 2016/10/31 16:38:32 Rename this to textureIdToDeleteAfterMailboxConsum
23 m_gl(gl),
24 m_size(mailboxSize) {}
25
26 MailboxTextureHolder::MailboxTextureHolder(sk_sp<SkImage> image) {
27 gpu::gles2::GLES2Interface* sharedGL = SharedGpuContext::gl();
28 GrContext* sharedGrContext = SharedGpuContext::gr();
29 if (!sharedGrContext) {
30 // Can happen if the context is lost. The SkImage won't be any good now
31 // anyway.
32 return;
33 }
34 GLuint imageTextureId =
35 skia::GrBackendObjectToGrGLTextureInfo(image->getTextureHandle(true))
36 ->fID;
37 sharedGL->BindTexture(GL_TEXTURE_2D, imageTextureId);
38
39 sharedGL->GenMailboxCHROMIUM(m_mailbox.name);
40 sharedGL->ProduceTextureCHROMIUM(GL_TEXTURE_2D, m_mailbox.name);
41 const GLuint64 fenceSync = sharedGL->InsertFenceSyncCHROMIUM();
42 sharedGL->Flush();
43 sharedGL->GenSyncTokenCHROMIUM(fenceSync, m_syncToken.GetData());
44
45 sharedGL->BindTexture(GL_TEXTURE_2D, 0);
46 // We changed bound textures in this function, so reset the GrContext.
47 sharedGrContext->resetContext(kTextureBinding_GrGLBackendState);
48 m_size = IntSize(image->width(), image->height());
49 }
50
51 MailboxTextureHolder::~MailboxTextureHolder() {
52 m_gl->WaitSyncTokenCHROMIUM(m_syncToken.GetData());
53 m_gl->DeleteTextures(1, &m_textureId);
54 }
55
56 WebThread* MailboxTextureHolder::getImageThread() {
57 return Platform::current()->currentThread();
58 }
59
60 unsigned MailboxTextureHolder::sharedContextId() {
61 return SharedGpuContext::kNoSharedContext;
62 }
63
64 } // namespace blink
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