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 void drawIndexedPrimitive(sw::DrawType type, unsigned int indexOffset, unsigned int primitiveCount); 62 void drawPrimitive(sw::DrawType type, unsigned int primiveCount); 63 void setPixelShader(const sw::PixelShader *shader); 64 void setPixelShaderConstantF(unsigned int startRegister, const float *constantData, unsigned int count); 65 void setScissorEnable(bool enable); 66 void setRenderTarget(int index, egl::Image *renderTarget, unsigned int layer); 67 void setDepthBuffer(egl::Image *depthBuffer, unsigned int layer); 68 void setStencilBuffer(egl::Image *stencilBuffer, unsigned int layer); 69 void setScissorRect(const sw::Rect &rect); 70 void setVertexShader(const sw::VertexShader *shader); 71 void setVertexShaderConstantF(unsigned int startRegister, const float *constantData, unsigned int count); 72 void setViewport(const Viewport &viewport); 73 74 bool stretchRect(sw::Surface *sourceSurface, const sw::SliceRectF *sourceRect, sw::Surface *destSurface, const sw::SliceRect *destRect, unsigned char flags); 75 bool stretchCube(sw::Surface *sourceSurface, sw::Surface *destSurface); 76 void finish(); 77 78 static void ClipDstRect(sw::RectF &srcRect, sw::Rect &dstRect, sw::Rect &clipRect, bool flipX = false, bool flipY = false); 79 static void ClipSrcRect(sw::RectF &srcRect, sw::Rect &dstRect, sw::Rect &clipRect, bool flipX = false, bool flipY = false); 80 81 private: 82 sw::Context *const context; 83 84 bool bindResources(); 85 void bindShaderConstants(); 86 bool bindViewport(); // Also adjusts for scissoring 87 88 bool validRectangle(const sw::Rect *rect, sw::Surface *surface); 89 bool validRectangle(const sw::RectF *rect, sw::Surface *surface); 90 91 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); 92 93 Viewport viewport; 94 sw::Rect scissorRect; 95 bool scissorEnable; 96 97 const sw::PixelShader *pixelShader; 98 const sw::VertexShader *vertexShader; 99 100 bool pixelShaderDirty; 101 unsigned int pixelShaderConstantsFDirty; 102 bool vertexShaderDirty; 103 unsigned int vertexShaderConstantsFDirty; 104 105 float pixelShaderConstantF[sw::FRAGMENT_UNIFORM_VECTORS][4]; 106 float vertexShaderConstantF[sw::VERTEX_UNIFORM_VECTORS][4]; 107 108 egl::Image *renderTarget[sw::RENDERTARGETS]; 109 egl::Image *depthBuffer; 110 egl::Image *stencilBuffer; 111 }; 112 } 113 114 #endif // gl_Device_hpp 115
