Jamie Madill | 89a0bf5 | 2013-09-18 14:36:24 -0400 | [diff] [blame] | 1 | // |
| 2 | // Copyright (c) 2013 The ANGLE Project Authors. All rights reserved. |
| 3 | // Use of this source code is governed by a BSD-style license that can be |
| 4 | // found in the LICENSE file. |
| 5 | // |
| 6 | |
| 7 | // PixelTransfer11.h: |
| 8 | // Buffer-to-Texture and Texture-to-Buffer data transfers. |
| 9 | // Used to implement pixel unpack and pixel pack buffers in ES3. |
| 10 | |
| 11 | #ifndef LIBGLESV2_PIXELTRANSFER11_H_ |
| 12 | #define LIBGLESV2_PIXELTRANSFER11_H_ |
| 13 | |
Geoff Lang | 44fa759 | 2014-05-30 11:50:07 -0400 | [diff] [blame] | 14 | #include "common/platform.h" |
| 15 | |
Jamie Madill | 89a0bf5 | 2013-09-18 14:36:24 -0400 | [diff] [blame] | 16 | namespace gl |
| 17 | { |
| 18 | |
| 19 | class Buffer; |
| 20 | struct Box; |
| 21 | struct Extents; |
| 22 | struct PixelUnpackState; |
| 23 | |
| 24 | } |
| 25 | |
| 26 | namespace rx |
| 27 | { |
| 28 | class Renderer11; |
| 29 | class RenderTarget; |
| 30 | |
| 31 | class PixelTransfer11 |
| 32 | { |
| 33 | public: |
| 34 | explicit PixelTransfer11(Renderer11 *renderer); |
| 35 | ~PixelTransfer11(); |
| 36 | |
| 37 | static bool supportsBufferToTextureCopy(GLenum internalFormat); |
| 38 | |
| 39 | // unpack: the source buffer is stored in the unpack state, and buffer strides |
| 40 | // offset: the start of the data within the unpack buffer |
| 41 | // destRenderTarget: individual slice/layer of a target texture |
| 42 | // destinationFormat/sourcePixelsType: determines shaders + shader parameters |
| 43 | // destArea: the sub-section of destRenderTarget to copy to |
| 44 | bool copyBufferToTexture(const gl::PixelUnpackState &unpack, unsigned int offset, RenderTarget *destRenderTarget, |
| 45 | GLenum destinationFormat, GLenum sourcePixelsType, const gl::Box &destArea); |
| 46 | |
| 47 | private: |
| 48 | |
Jamie Madill | 89a0bf5 | 2013-09-18 14:36:24 -0400 | [diff] [blame] | 49 | struct CopyShaderParams |
| 50 | { |
| 51 | unsigned int FirstPixelOffset; |
| 52 | unsigned int PixelsPerRow; |
| 53 | unsigned int RowStride; |
| 54 | unsigned int RowsPerSlice; |
| 55 | float PositionOffset[2]; |
| 56 | float PositionScale[2]; |
| 57 | int TexLocationOffset[2]; |
| 58 | int TexLocationScale[2]; |
| 59 | }; |
| 60 | |
| 61 | static void setBufferToTextureCopyParams(const gl::Box &destArea, const gl::Extents &destSize, GLenum internalFormat, |
| 62 | const gl::PixelUnpackState &unpack, unsigned int offset, CopyShaderParams *parametersOut); |
| 63 | |
Jamie Madill | 89a0bf5 | 2013-09-18 14:36:24 -0400 | [diff] [blame] | 64 | void buildShaderMap(); |
| 65 | ID3D11PixelShader *findBufferToTexturePS(GLenum internalFormat) const; |
| 66 | |
| 67 | Renderer11 *mRenderer; |
| 68 | |
Jamie Madill | 24112d6 | 2014-01-21 16:39:19 -0500 | [diff] [blame] | 69 | std::map<GLenum, ID3D11PixelShader *> mBufferToTexturePSMap; |
Jamie Madill | 89a0bf5 | 2013-09-18 14:36:24 -0400 | [diff] [blame] | 70 | ID3D11VertexShader *mBufferToTextureVS; |
| 71 | ID3D11GeometryShader *mBufferToTextureGS; |
| 72 | ID3D11Buffer *mParamsConstantBuffer; |
| 73 | CopyShaderParams mParamsData; |
| 74 | |
| 75 | ID3D11RasterizerState *mCopyRasterizerState; |
| 76 | ID3D11DepthStencilState *mCopyDepthStencilState; |
| 77 | |
| 78 | }; |
| 79 | |
| 80 | } |
| 81 | |
| 82 | #endif // LIBGLESV2_PIXELTRANSFER11_H_ |