1 // Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef gl_Device_hpp 16 #define gl_Device_hpp 17 18 #include "Renderer/Renderer.hpp" 19 20 namespace egl 21 { 22 class Image; 23 } 24 25 namespace es2 26 { 27 class Texture; 28 29 struct Viewport 30 { 31 int x0; 32 int y0; 33 unsigned int width; 34 unsigned int height; 35 float minZ; 36 float maxZ; 37 }; 38 39 class Device : public sw::Renderer 40 { 41 public: 42 enum : unsigned char 43 { 44 USE_FILTER = 0x01, 45 COLOR_BUFFER = 0x02, 46 DEPTH_BUFFER = 0x04, 47 STENCIL_BUFFER = 0x08, 48 ALL_BUFFERS = COLOR_BUFFER | DEPTH_BUFFER | STENCIL_BUFFER, 49 }; 50 51 explicit Device(sw::Context *context); 52 53 virtual ~Device(); 54 55 void *operator new(size_t size); 56 void operator delete(void * mem); 57 58 void clearColor(float red, float green, float blue, float alpha, unsigned int rgbaMask); 59 void clearDepth(float z); 60 void clearStencil(unsigned int stencil, unsigned int mask); 61 egl::Image *createDepthStencilSurface(unsigned int width, unsigned int height, sw::Format format, int multiSampleDepth, bool discard); 62 egl::Image *createRenderTarget(unsigned int width, unsigned int height, sw::Format format, int multiSampleDepth, bool lockable); 63 void drawIndexedPrimitive(sw::DrawType type, unsigned int indexOffset, unsigned int primitiveCount); 64 void drawPrimitive(sw::DrawType type, unsigned int primiveCount); 65 void setPixelShader(const sw::PixelShader *shader); 66 void setPixelShaderConstantF(unsigned int startRegister, const float *constantData, unsigned int count); 67 void setScissorEnable(bool enable); 68 void setRenderTarget(int index, egl::Image *renderTarget); 69 void setDepthBuffer(egl::Image *depthBuffer); 70 void setStencilBuffer(egl::Image *stencilBuffer); 71 void setScissorRect(const sw::Rect &rect); 72 void setVertexShader(const sw::VertexShader *shader); 73 void setVertexShaderConstantF(unsigned int startRegister, const float *constantData, unsigned int count); 74 void setViewport(const Viewport &viewport); 75 76 bool stretchRect(sw::Surface *sourceSurface, const sw::SliceRect *sourceRect, sw::Surface *destSurface, const sw::SliceRect *destRect, unsigned char flags); 77 bool stretchCube(sw::Surface *sourceSurface, sw::Surface *destSurface); 78 void finish(); 79 80 private: 81 sw::Context *const context; 82 83 bool bindResources(); 84 void bindShaderConstants(); 85 bool bindViewport(); // Also adjusts for scissoring 86 87 bool validRectangle(const sw::Rect *rect, sw::Surface *surface); 88 89 void copyBuffer(sw::byte *sourceBuffer, sw::byte *destBuffer, unsigned int width, unsigned int height, unsigned int sourcePitch, unsigned int destPitch, unsigned int bytes, bool flipX, bool flipY); 90 91 Viewport viewport; 92 sw::Rect scissorRect; 93 bool scissorEnable; 94 95 const sw::PixelShader *pixelShader; 96 const sw::VertexShader *vertexShader; 97 98 bool pixelShaderDirty; 99 unsigned int pixelShaderConstantsFDirty; 100 bool vertexShaderDirty; 101 unsigned int vertexShaderConstantsFDirty; 102 103 float pixelShaderConstantF[sw::FRAGMENT_UNIFORM_VECTORS][4]; 104 float vertexShaderConstantF[sw::VERTEX_UNIFORM_VECTORS][4]; 105 106 egl::Image *renderTarget[sw::RENDERTARGETS]; 107 egl::Image *depthBuffer; 108 egl::Image *stencilBuffer; 109 }; 110 } 111 112 #endif // gl_Device_hpp 113
