Index: third_party/WebKit/Source/platform/graphics/MailboxTextureHolder.h |
diff --git a/third_party/WebKit/Source/platform/graphics/MailboxTextureHolder.h b/third_party/WebKit/Source/platform/graphics/MailboxTextureHolder.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..1d7d0b5985414b39e5240bbfa31fb4ffcfe120d1 |
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+++ b/third_party/WebKit/Source/platform/graphics/MailboxTextureHolder.h |
@@ -0,0 +1,58 @@ |
+// Copyright 2016 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef MailboxTextureHolder_h |
+#define MailboxTextureHolder_h |
+ |
+#include "platform/PlatformExport.h" |
+#include "platform/graphics/TextureHolder.h" |
+#include "third_party/khronos/GLES2/gl2.h" |
+#include "wtf/WeakPtr.h" |
+ |
+namespace blink { |
+ |
+class WebGraphicsContext3DProviderWrapper; |
+ |
+class PLATFORM_EXPORT MailboxTextureHolder final : public TextureHolder { |
+ public: |
+ ~MailboxTextureHolder() override; |
+ |
+ bool isSkiaTextureHolder() final { return false; } |
+ bool isMailboxTextureHolder() final { return true; } |
+ unsigned sharedContextId() final; |
+ IntSize size() const final { return m_size; } |
+ bool currentFrameKnownToBeOpaque(Image::MetadataMode) final { return false; } |
+ |
+ gpu::Mailbox mailbox() final { return m_mailbox; } |
+ gpu::SyncToken syncToken() final { return m_syncToken; } |
+ void updateSyncToken(gpu::SyncToken syncToken) final { |
+ m_syncToken = syncToken; |
+ } |
+ |
+ // In WebGL's commit or transferToImageBitmap calls, it will call the |
+ // DrawingBuffer::transferToStaticBitmapImage function, which produces the |
+ // input parameters for this method. |
+ MailboxTextureHolder(const gpu::Mailbox&, |
+ const gpu::SyncToken&, |
+ unsigned textureIdToDeleteAfterMailboxConsumed, |
+ WeakPtr<WebGraphicsContext3DProviderWrapper>, |
+ IntSize mailboxSize); |
+ // This function turns a texture-backed SkImage into a mailbox and a |
+ // syncToken. |
+ MailboxTextureHolder(std::unique_ptr<TextureHolder>); |
+ |
+ private: |
+ void releaseTextureThreadSafe(); |
+ |
+ gpu::Mailbox m_mailbox; |
+ gpu::SyncToken m_syncToken; |
+ unsigned m_textureId; |
+ WeakPtr<WebGraphicsContext3DProviderWrapper> m_contextProvider; |
+ IntSize m_size; |
+ bool m_isConvertedFromSkiaTexture; |
+}; |
+ |
+} // namespace blink |
+ |
+#endif // MailboxTextureHolder_h |