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| 1 // Copyright 2017 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 #ifndef CHROME_BROWSER_ANDROID_VR_SHELL_MAILBOX_TO_SURFACE_BRIDGE_H_ |
| 6 #define CHROME_BROWSER_ANDROID_VR_SHELL_MAILBOX_TO_SURFACE_BRIDGE_H_ |
| 7 |
| 8 #include "base/memory/weak_ptr.h" |
| 9 |
| 10 namespace gl { |
| 11 class SurfaceTexture; |
| 12 } |
| 13 |
| 14 namespace gpu { |
| 15 struct MailboxHolder; |
| 16 namespace gles2 { |
| 17 class GLES2Interface; |
| 18 } |
| 19 } |
| 20 |
| 21 namespace cc { |
| 22 class ContextProvider; |
| 23 } |
| 24 |
| 25 namespace vr_shell { |
| 26 |
| 27 class MailboxToSurfaceBridge { |
| 28 public: |
| 29 MailboxToSurfaceBridge(); |
| 30 ~MailboxToSurfaceBridge(); |
| 31 |
| 32 void CreateSurface(gl::SurfaceTexture*); |
| 33 |
| 34 void ResizeSurface(int width, int height); |
| 35 |
| 36 // Returns true if swapped successfully. This can fail if the GL |
| 37 // context isn't ready for use yet, in that case the caller |
| 38 // won't get a new frame on the SurfaceTexture. |
| 39 bool CopyMailboxToSurfaceAndSwap(const gpu::MailboxHolder& mailbox); |
| 40 |
| 41 private: |
| 42 void OnContextAvailable(scoped_refptr<cc::ContextProvider>); |
| 43 void InitializeRenderer(); |
| 44 void DestroyContext(); |
| 45 void DrawQuad(unsigned int textureHandle); |
| 46 |
| 47 scoped_refptr<cc::ContextProvider> context_provider_; |
| 48 gpu::gles2::GLES2Interface* gl_ = nullptr; |
| 49 int surface_handle_ = 0; |
| 50 |
| 51 // Saved state for a pending resize, the dimensions are only |
| 52 // valid if needs_resize_ is true. |
| 53 bool needs_resize_ = false; |
| 54 int resize_width_; |
| 55 int resize_height_; |
| 56 |
| 57 // Must be last. |
| 58 base::WeakPtrFactory<MailboxToSurfaceBridge> weak_ptr_factory_; |
| 59 }; |
| 60 |
| 61 } // namespace vr_shell |
| 62 |
| 63 #endif // CHROME_BROWSER_ANDROID_VR_SHELL_MAILBOX_TO_SURFACE_BRIDGE_H_ |
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