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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/CrossThreadFunctional.h" |
| 9 #include "platform/graphics/SkiaTextureHolder.h" |
| 10 #include "platform/graphics/gpu/SharedGpuContext.h" |
| 11 #include "public/platform/Platform.h" |
| 12 #include "skia/ext/texture_handle.h" |
| 13 #include "third_party/skia/include/gpu/GrContext.h" |
| 14 |
| 15 namespace blink { |
| 16 |
| 17 namespace { |
| 18 |
| 19 void releaseTexture( |
| 20 bool isConvertedFromSkiaTexture, |
| 21 unsigned textureId, |
| 22 WeakPtr<WebGraphicsContext3DProviderWrapper> contextProvider, |
| 23 std::unique_ptr<gpu::SyncToken> syncToken) { |
| 24 if (!isConvertedFromSkiaTexture && textureId && contextProvider) { |
| 25 contextProvider->contextProvider()->contextGL()->WaitSyncTokenCHROMIUM( |
| 26 syncToken->GetData()); |
| 27 contextProvider->contextProvider()->contextGL()->DeleteTextures(1, |
| 28 &textureId); |
| 29 } |
| 30 } |
| 31 |
| 32 } // namespace |
| 33 |
| 34 MailboxTextureHolder::MailboxTextureHolder( |
| 35 const gpu::Mailbox& mailbox, |
| 36 const gpu::SyncToken& syncToken, |
| 37 unsigned textureIdToDeleteAfterMailboxConsumed, |
| 38 WeakPtr<WebGraphicsContext3DProviderWrapper> contextProvider, |
| 39 IntSize mailboxSize) |
| 40 : m_mailbox(mailbox), |
| 41 m_syncToken(syncToken), |
| 42 m_textureId(textureIdToDeleteAfterMailboxConsumed), |
| 43 m_contextProvider(contextProvider), |
| 44 m_size(mailboxSize), |
| 45 m_isConvertedFromSkiaTexture(false) {} |
| 46 |
| 47 MailboxTextureHolder::MailboxTextureHolder( |
| 48 std::unique_ptr<TextureHolder> textureHolder) { |
| 49 DCHECK(textureHolder->isSkiaTextureHolder()); |
| 50 sk_sp<SkImage> image = textureHolder->skImage(); |
| 51 DCHECK(image); |
| 52 |
| 53 gpu::gles2::GLES2Interface* sharedGL = SharedGpuContext::gl(); |
| 54 GrContext* sharedGrContext = SharedGpuContext::gr(); |
| 55 if (!sharedGrContext) { |
| 56 // Can happen if the context is lost. The SkImage won't be any good now |
| 57 // anyway. |
| 58 return; |
| 59 } |
| 60 GLuint imageTextureId = |
| 61 skia::GrBackendObjectToGrGLTextureInfo(image->getTextureHandle(true)) |
| 62 ->fID; |
| 63 sharedGL->BindTexture(GL_TEXTURE_2D, imageTextureId); |
| 64 |
| 65 sharedGL->GenMailboxCHROMIUM(m_mailbox.name); |
| 66 sharedGL->ProduceTextureCHROMIUM(GL_TEXTURE_2D, m_mailbox.name); |
| 67 const GLuint64 fenceSync = sharedGL->InsertFenceSyncCHROMIUM(); |
| 68 sharedGL->Flush(); |
| 69 sharedGL->GenSyncTokenCHROMIUM(fenceSync, m_syncToken.GetData()); |
| 70 |
| 71 sharedGL->BindTexture(GL_TEXTURE_2D, 0); |
| 72 // We changed bound textures in this function, so reset the GrContext. |
| 73 sharedGrContext->resetContext(kTextureBinding_GrGLBackendState); |
| 74 m_size = IntSize(image->width(), image->height()); |
| 75 m_textureId = imageTextureId; |
| 76 m_isConvertedFromSkiaTexture = true; |
| 77 } |
| 78 |
| 79 MailboxTextureHolder::~MailboxTextureHolder() { |
| 80 // Avoid leaking mailboxes in cases where the texture gets recycled by skia. |
| 81 if (SharedGpuContext::isValid()) { |
| 82 SharedGpuContext::gl()->ProduceTextureDirectCHROMIUM(0, GL_TEXTURE_2D, |
| 83 m_mailbox.name); |
| 84 } |
| 85 releaseTextureThreadSafe(); |
| 86 } |
| 87 |
| 88 void MailboxTextureHolder::releaseTextureThreadSafe() { |
| 89 // If this member is still null, it means we are still at the thread where |
| 90 // the m_texture was created. |
| 91 std::unique_ptr<gpu::SyncToken> passedSyncToken( |
| 92 new gpu::SyncToken(m_syncToken)); |
| 93 if (!wasTransferred()) { |
| 94 releaseTexture(m_isConvertedFromSkiaTexture, m_textureId, m_contextProvider, |
| 95 std::move(passedSyncToken)); |
| 96 } else if (wasTransferred() && textureThreadTaskRunner()) { |
| 97 textureThreadTaskRunner()->postTask( |
| 98 BLINK_FROM_HERE, |
| 99 crossThreadBind(&releaseTexture, m_isConvertedFromSkiaTexture, |
| 100 m_textureId, passed(std::move(m_contextProvider)), |
| 101 passed(std::move(passedSyncToken)))); |
| 102 } |
| 103 m_textureId = 0u; // invalidate the texture. |
| 104 setWasTransferred(false); |
| 105 setTextureThreadTaskRunner(nullptr); |
| 106 } |
| 107 |
| 108 unsigned MailboxTextureHolder::sharedContextId() { |
| 109 return SharedGpuContext::kNoSharedContext; |
| 110 } |
| 111 |
| 112 } // namespace blink |
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