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      1 //
      2 // Copyright (c) 2012-2013 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 // angletypes.h : Defines a variety of structures and enum types that are used throughout libGLESv2
      8 
      9 #ifndef LIBGLESV2_ANGLETYPES_H_
     10 #define LIBGLESV2_ANGLETYPES_H_
     11 
     12 namespace gl
     13 {
     14 
     15 enum TextureType
     16 {
     17     TEXTURE_2D,
     18     TEXTURE_CUBE,
     19 
     20     TEXTURE_TYPE_COUNT,
     21     TEXTURE_UNKNOWN
     22 };
     23 
     24 enum SamplerType
     25 {
     26     SAMPLER_PIXEL,
     27     SAMPLER_VERTEX
     28 };
     29 
     30 struct Color
     31 {
     32     float red;
     33     float green;
     34     float blue;
     35     float alpha;
     36 };
     37 
     38 struct Rectangle
     39 {
     40     int x;
     41     int y;
     42     int width;
     43     int height;
     44 };
     45 
     46 struct RasterizerState
     47 {
     48     bool cullFace;
     49     GLenum cullMode;
     50     GLenum frontFace;
     51 
     52     bool polygonOffsetFill;
     53     GLfloat polygonOffsetFactor;
     54     GLfloat polygonOffsetUnits;
     55 
     56     bool pointDrawMode;
     57     bool multiSample;
     58 };
     59 
     60 struct BlendState
     61 {
     62     bool blend;
     63     GLenum sourceBlendRGB;
     64     GLenum destBlendRGB;
     65     GLenum sourceBlendAlpha;
     66     GLenum destBlendAlpha;
     67     GLenum blendEquationRGB;
     68     GLenum blendEquationAlpha;
     69 
     70     bool colorMaskRed;
     71     bool colorMaskGreen;
     72     bool colorMaskBlue;
     73     bool colorMaskAlpha;
     74 
     75     bool sampleAlphaToCoverage;
     76 
     77     bool dither;
     78 };
     79 
     80 struct DepthStencilState
     81 {
     82     bool depthTest;
     83     GLenum depthFunc;
     84     bool depthMask;
     85 
     86     bool stencilTest;
     87     GLenum stencilFunc;
     88     GLuint stencilMask;
     89     GLenum stencilFail;
     90     GLenum stencilPassDepthFail;
     91     GLenum stencilPassDepthPass;
     92     GLuint stencilWritemask;
     93     GLenum stencilBackFunc;
     94     GLuint stencilBackMask;
     95     GLenum stencilBackFail;
     96     GLenum stencilBackPassDepthFail;
     97     GLenum stencilBackPassDepthPass;
     98     GLuint stencilBackWritemask;
     99 };
    100 
    101 struct SamplerState
    102 {
    103     GLenum minFilter;
    104     GLenum magFilter;
    105     GLenum wrapS;
    106     GLenum wrapT;
    107     float maxAnisotropy;
    108     int lodOffset;
    109 };
    110 
    111 struct ClearParameters
    112 {
    113     GLbitfield mask;
    114 
    115     Color colorClearValue;
    116     bool colorMaskRed;
    117     bool colorMaskGreen;
    118     bool colorMaskBlue;
    119     bool colorMaskAlpha;
    120 
    121     float depthClearValue;
    122 
    123     GLint stencilClearValue;
    124     GLuint stencilWriteMask;
    125 };
    126 
    127 }
    128 
    129 #endif // LIBGLESV2_ANGLETYPES_H_
    130