kc3-lang/angle/src/libANGLE/GLES1Renderer.h

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• Hash : 57d95828
  Author :
  Date : 2020-04-30T17:35:50
  

  Revert "Add type for attribute locations."
  
  This reverts commit 9349c14344b2d1fd6bc357063b602bc2626c140f
  and commit d43b057435e6c9e3194dd20627681ffca0c0808e.
  
  It's no longer needed after we bind attribute locations before link.
  
  Original CL message:
  
  This will allow the capture/replay tool to easily intercept and label
  attribute locations for remapping.
  
  There's some inconsistency in implementation in the GL desktop front-
  end. This is a quick fix and the full implementation is left for when
  we implement the full desktop GL API set.
  
  Bug: angleproject:4598
  Change-Id: Ic510159d4d1982eff41560503cabf983a1be0381
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2174076
  Reviewed-by: Cody Northrop <cnorthrop@google.com>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/GLES1Renderer.h

• //
  // Copyright 2018 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // GLES1Renderer.h: Defines GLES1 emulation rendering operations on top of a GLES3
  // context. Used by Context.h.
  
  #ifndef LIBANGLE_GLES1_RENDERER_H_
  #define LIBANGLE_GLES1_RENDERER_H_
  
  #include "angle_gl.h"
  #include "common/angleutils.h"
  #include "libANGLE/angletypes.h"
  
  #include <memory>
  #include <string>
  #include <unordered_map>
  
  namespace gl
  {
  class Context;
  class GLES1State;
  class Program;
  class State;
  class Shader;
  class ShaderProgramManager;
  
  class GLES1Renderer final : angle::NonCopyable
  {
    public:
      GLES1Renderer();
      ~GLES1Renderer();
  
      void onDestroy(Context *context, State *state);
  
      angle::Result prepareForDraw(PrimitiveMode mode, Context *context, State *glState);
  
      static int VertexArrayIndex(ClientVertexArrayType type, const GLES1State &gles1);
      static int TexCoordArrayIndex(unsigned int unit);
  
      void drawTexture(Context *context,
                       State *glState,
                       float x,
                       float y,
                       float z,
                       float width,
                       float height);
  
      static constexpr int kTexUnitCount = 4;
  
    private:
      using Mat4Uniform = float[16];
      using Vec4Uniform = float[4];
      using Vec3Uniform = float[3];
  
      Shader *getShader(ShaderProgramID handle) const;
      Program *getProgram(ShaderProgramID handle) const;
  
      angle::Result compileShader(Context *context,
                                  ShaderType shaderType,
                                  const char *src,
                                  ShaderProgramID *shaderOut);
      angle::Result linkProgram(Context *context,
                                State *glState,
                                ShaderProgramID vshader,
                                ShaderProgramID fshader,
                                const std::unordered_map<GLint, std::string> &attribLocs,
                                ShaderProgramID *programOut);
      angle::Result initializeRendererProgram(Context *context, State *glState);
  
      void setUniform1i(Context *context,
                        Program *programObject,
                        UniformLocation location,
                        GLint value);
      void setUniform1iv(Context *context,
                         Program *programObject,
                         UniformLocation location,
                         GLint count,
                         const GLint *value);
      void setUniformMatrix4fv(Program *programObject,
                               UniformLocation location,
                               GLint count,
                               GLboolean transpose,
                               const GLfloat *value);
      void setUniform4fv(Program *programObject,
                         UniformLocation location,
                         GLint count,
                         const GLfloat *value);
      void setUniform3fv(Program *programObject,
                         UniformLocation location,
                         GLint count,
                         const GLfloat *value);
      void setUniform2fv(Program *programObject,
                         UniformLocation location,
                         GLint count,
                         const GLfloat *value);
      void setUniform1f(Program *programObject, UniformLocation location, GLfloat value);
      void setUniform1fv(Program *programObject,
                         UniformLocation location,
                         GLint count,
                         const GLfloat *value);
  
      void setAttributesEnabled(Context *context, State *glState, AttributesMask mask);
  
      static constexpr int kLightCount     = 8;
      static constexpr int kClipPlaneCount = 6;
  
      static constexpr int kVertexAttribIndex           = 0;
      static constexpr int kNormalAttribIndex           = 1;
      static constexpr int kColorAttribIndex            = 2;
      static constexpr int kPointSizeAttribIndex        = 3;
      static constexpr int kTextureCoordAttribIndexBase = 4;
  
      bool mRendererProgramInitialized;
      ShaderProgramManager *mShaderPrograms;
  
      struct GLES1ProgramState
      {
          ShaderProgramID program;
  
          UniformLocation projMatrixLoc;
          UniformLocation modelviewMatrixLoc;
          UniformLocation textureMatrixLoc;
          UniformLocation modelviewInvTrLoc;
  
          // Texturing
          UniformLocation enableTexture2DLoc;
          UniformLocation enableTextureCubeMapLoc;
          std::array<UniformLocation, kTexUnitCount> tex2DSamplerLocs;
          std::array<UniformLocation, kTexUnitCount> texCubeSamplerLocs;
  
          UniformLocation textureFormatLoc;
  
          UniformLocation textureEnvModeLoc;
          UniformLocation combineRgbLoc;
          UniformLocation combineAlphaLoc;
          UniformLocation src0rgbLoc;
          UniformLocation src0alphaLoc;
          UniformLocation src1rgbLoc;
          UniformLocation src1alphaLoc;
          UniformLocation src2rgbLoc;
          UniformLocation src2alphaLoc;
          UniformLocation op0rgbLoc;
          UniformLocation op0alphaLoc;
          UniformLocation op1rgbLoc;
          UniformLocation op1alphaLoc;
          UniformLocation op2rgbLoc;
          UniformLocation op2alphaLoc;
          UniformLocation textureEnvColorLoc;
          UniformLocation rgbScaleLoc;
          UniformLocation alphaScaleLoc;
          UniformLocation pointSpriteCoordReplaceLoc;
  
          // Alpha test
          UniformLocation enableAlphaTestLoc;
          UniformLocation alphaFuncLoc;
          UniformLocation alphaTestRefLoc;
  
          // Shading, materials, and lighting
          UniformLocation shadeModelFlatLoc;
          UniformLocation enableLightingLoc;
          UniformLocation enableRescaleNormalLoc;
          UniformLocation enableNormalizeLoc;
          UniformLocation enableColorMaterialLoc;
  
          UniformLocation materialAmbientLoc;
          UniformLocation materialDiffuseLoc;
          UniformLocation materialSpecularLoc;
          UniformLocation materialEmissiveLoc;
          UniformLocation materialSpecularExponentLoc;
  
          UniformLocation lightModelSceneAmbientLoc;
          UniformLocation lightModelTwoSidedLoc;
  
          UniformLocation lightEnablesLoc;
          UniformLocation lightAmbientsLoc;
          UniformLocation lightDiffusesLoc;
          UniformLocation lightSpecularsLoc;
          UniformLocation lightPositionsLoc;
          UniformLocation lightDirectionsLoc;
          UniformLocation lightSpotlightExponentsLoc;
          UniformLocation lightSpotlightCutoffAnglesLoc;
          UniformLocation lightAttenuationConstsLoc;
          UniformLocation lightAttenuationLinearsLoc;
          UniformLocation lightAttenuationQuadraticsLoc;
  
          // Fog
          UniformLocation fogEnableLoc;
          UniformLocation fogModeLoc;
          UniformLocation fogDensityLoc;
          UniformLocation fogStartLoc;
          UniformLocation fogEndLoc;
          UniformLocation fogColorLoc;
  
          // Clip planes
          UniformLocation enableClipPlanesLoc;
          UniformLocation clipPlaneEnablesLoc;
          UniformLocation clipPlanesLoc;
  
          // Point rasterization
          UniformLocation pointRasterizationLoc;
          UniformLocation pointSizeMinLoc;
          UniformLocation pointSizeMaxLoc;
          UniformLocation pointDistanceAttenuationLoc;
          UniformLocation pointSpriteEnabledLoc;
  
          // Draw texture
          UniformLocation enableDrawTextureLoc;
          UniformLocation drawTextureCoordsLoc;
          UniformLocation drawTextureDimsLoc;
          UniformLocation drawTextureNormalizedCropRectLoc;
      };
  
      struct GLES1UniformBuffers
      {
          std::array<Mat4Uniform, kTexUnitCount> textureMatrices;
          std::array<GLint, kTexUnitCount> tex2DEnables;
          std::array<GLint, kTexUnitCount> texCubeEnables;
  
          std::array<GLint, kTexUnitCount> texEnvModes;
          std::array<GLint, kTexUnitCount> texCombineRgbs;
          std::array<GLint, kTexUnitCount> texCombineAlphas;
  
          std::array<GLint, kTexUnitCount> texCombineSrc0Rgbs;
          std::array<GLint, kTexUnitCount> texCombineSrc0Alphas;
          std::array<GLint, kTexUnitCount> texCombineSrc1Rgbs;
          std::array<GLint, kTexUnitCount> texCombineSrc1Alphas;
          std::array<GLint, kTexUnitCount> texCombineSrc2Rgbs;
          std::array<GLint, kTexUnitCount> texCombineSrc2Alphas;
          std::array<GLint, kTexUnitCount> texCombineOp0Rgbs;
          std::array<GLint, kTexUnitCount> texCombineOp0Alphas;
          std::array<GLint, kTexUnitCount> texCombineOp1Rgbs;
          std::array<GLint, kTexUnitCount> texCombineOp1Alphas;
          std::array<GLint, kTexUnitCount> texCombineOp2Rgbs;
          std::array<GLint, kTexUnitCount> texCombineOp2Alphas;
          std::array<Vec4Uniform, kTexUnitCount> texEnvColors;
          std::array<GLfloat, kTexUnitCount> texEnvRgbScales;
          std::array<GLfloat, kTexUnitCount> texEnvAlphaScales;
          std::array<GLint, kTexUnitCount> pointSpriteCoordReplaces;
  
          // Lighting
          std::array<GLint, kLightCount> lightEnables;
          std::array<Vec4Uniform, kLightCount> lightAmbients;
          std::array<Vec4Uniform, kLightCount> lightDiffuses;
          std::array<Vec4Uniform, kLightCount> lightSpeculars;
          std::array<Vec4Uniform, kLightCount> lightPositions;
          std::array<Vec3Uniform, kLightCount> lightDirections;
          std::array<GLfloat, kLightCount> spotlightExponents;
          std::array<GLfloat, kLightCount> spotlightCutoffAngles;
          std::array<GLfloat, kLightCount> attenuationConsts;
          std::array<GLfloat, kLightCount> attenuationLinears;
          std::array<GLfloat, kLightCount> attenuationQuadratics;
  
          // Clip planes
          std::array<GLint, kClipPlaneCount> clipPlaneEnables;
          std::array<Vec4Uniform, kClipPlaneCount> clipPlanes;
  
          // Texture crop rectangles
          std::array<Vec4Uniform, kTexUnitCount> texCropRects;
      };
  
      GLES1UniformBuffers mUniformBuffers;
      GLES1ProgramState mProgramState;
  
      bool mDrawTextureEnabled      = false;
      GLfloat mDrawTextureCoords[4] = {0.0f, 0.0f, 0.0f, 0.0f};
      GLfloat mDrawTextureDims[2]   = {0.0f, 0.0f};
  };
  
  }  // namespace gl
  
  #endif  // LIBANGLE_GLES1_RENDERER_H_
  

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