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| 1 // Copyright (c) 2012 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 UI_SURFACE_ACCELERATED_SURFACE_TRANSFORMER_WIN_H_ | |
| 6 #define UI_SURFACE_ACCELERATED_SURFACE_TRANSFORMER_WIN_H_ | |
| 7 | |
| 8 #include <d3d9.h> | |
| 9 | |
| 10 #include "base/memory/ref_counted.h" | |
| 11 #include "base/single_thread_task_runner.h" | |
| 12 #include "base/synchronization/lock.h" | |
| 13 #include "base/synchronization/waitable_event.h" | |
| 14 #include "base/win/scoped_comptr.h" | |
| 15 #include "ui/gfx/native_widget_types.h" | |
| 16 #include "ui/gfx/size.h" | |
| 17 #include "ui/surface/surface_export.h" | |
| 18 | |
| 19 namespace gfx { | |
| 20 class Size; | |
| 21 class Rect; | |
| 22 } // namespace gfx | |
| 23 | |
| 24 // Provides useful image filtering operations that are implemented | |
| 25 // efficiently on DirectX9-class hardware using fragment programs. | |
| 26 class SURFACE_EXPORT AcceleratedSurfaceTransformer { | |
| 27 public: | |
| 28 // Constructs an uninitialized surface transformer. Call Init() before | |
| 29 // using the resulting object. | |
| 30 AcceleratedSurfaceTransformer(); | |
| 31 | |
| 32 // Init() initializes the transformer to operate on a device. This must be | |
| 33 // called before any other method of this class, and it must be called | |
| 34 // again after ReleaseAll() or DetachAll() before the class is used. | |
| 35 // | |
| 36 // Returns true if successful. | |
| 37 bool Init(IDirect3DDevice9* device); | |
| 38 | |
| 39 // ReleaseAll() releases all direct3d resource references. | |
| 40 void ReleaseAll(); | |
| 41 | |
| 42 // DetachAll() leaks all direct3d resource references. This exists in order to | |
| 43 // work around particular driver bugs, and should only be called at shutdown. | |
| 44 // TODO(ncarter): Update the leak expectations before checkin. | |
| 45 void DetachAll(); | |
| 46 | |
| 47 // Draw a textured quad to a surface, flipping orientation in the y direction. | |
| 48 bool CopyInverted( | |
| 49 IDirect3DTexture9* src_texture, | |
| 50 IDirect3DSurface9* dst_surface, | |
| 51 const gfx::Size& dst_size); | |
| 52 | |
| 53 // Resize a surface using repeated bilinear interpolation. | |
| 54 bool ResizeBilinear( | |
| 55 IDirect3DSurface9* src_surface, | |
| 56 const gfx::Rect& src_subrect, | |
| 57 IDirect3DSurface9* dst_surface); | |
| 58 | |
| 59 private: | |
| 60 enum ShaderCombo { | |
| 61 SIMPLE_TEXTURE, | |
| 62 NUM_SHADERS | |
| 63 }; | |
| 64 | |
| 65 // Set the active vertex and pixel shader combination. | |
| 66 bool SetShaderCombo(ShaderCombo combo); | |
| 67 | |
| 68 // Intitializes a vertex and pixel shader combination from compiled bytecode. | |
| 69 bool InitShaderCombo(const BYTE vertex_shader_instructions[], | |
| 70 const BYTE pixel_shader_instructions[], | |
| 71 ShaderCombo shader_combo_name); | |
| 72 | |
| 73 IDirect3DDevice9* device(); | |
| 74 | |
| 75 base::win::ScopedComPtr<IDirect3DDevice9> device_; | |
| 76 base::win::ScopedComPtr<IDirect3DVertexShader9> vertex_shaders_[NUM_SHADERS]; | |
| 77 base::win::ScopedComPtr<IDirect3DPixelShader9> pixel_shaders_[NUM_SHADERS]; | |
| 78 DISALLOW_COPY_AND_ASSIGN(AcceleratedSurfaceTransformer); | |
| 79 }; | |
| 80 | |
| 81 #endif // UI_SURFACE_ACCELERATED_SURFACE_TRANSFORMER_WIN_H_ | |
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