tests/glean/tblend.h

   1 // BEGIN_COPYRIGHT -*- glean -*-
   2 //
   3 // Copyright (C) 1999  Allen Akin   All Rights Reserved.
   4 //
   5 // Permission is hereby granted, free of charge, to any person
   6 // obtaining a copy of this software and associated documentation
   7 // files (the "Software"), to deal in the Software without
   8 // restriction, including without limitation the rights to use,
   9 // copy, modify, merge, publish, distribute, sublicense, and/or
  10 // sell copies of the Software, and to permit persons to whom the
  11 // Software is furnished to do so, subject to the following
  12 // conditions:
  13 //
  14 // The above copyright notice and this permission notice shall be
  15 // included in all copies or substantial portions of the
  16 // Software.
  17 //
  18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  19 // KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  20 // WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  21 // PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL ALLEN AKIN BE
  22 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23 // AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  24 // OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  25 // DEALINGS IN THE SOFTWARE.
  26 //
  27 // END_COPYRIGHT
  28
  29 // tblend.h:  Test blending functions.
  30
  31 #ifndef __tblend_h__
  32 #define __tblend_h__
  33
  34 #include "tbase.h"
  35
  36 namespace GLEAN {
  37
  38 #define drawingSize 8           // We will check each pair of blend factors
  39                                 // for each pixel in a square image of this
  40                                 // dimension, so if you make it too large,
  41                                 // the tests may take quite a while to run.
  42 #define windowSize (drawingSize + 2)
  43
  44 class BlendFuncResult: public BaseResult {
  45 public:
  46         bool pass;      // not written to log file
  47
  48         struct PartialResult {
  49                 GLenum srcRGB, srcA;    // Source blend factor.
  50                 GLenum dstRGB, dstA;    // Destination blend factor.
  51                 GLenum opRGB, opA;      // Operator (add, sub, min, max)
  52                 GLfloat constColor[4];
  53                 float rbErr;    // Max readback error, in bits.
  54                 float blErr;    // Max blend error, in bits.
  55         };
  56         vector<PartialResult> results;
  57
  58         virtual void putresults(ostream& s) const;
  59         virtual bool getresults(istream& s);
  60 };
  61
  62 class BlendFuncTest: public BaseTest<BlendFuncResult> {
  63 public:
  64         GLEAN_CLASS_WH(BlendFuncTest, BlendFuncResult,
  65                        windowSize, windowSize);
  66
  67 private:
  68         struct runFactorsResult {
  69                 float readbackErrorBits;
  70                 float blendRGBErrorBits;
  71                 float blendAlphaErrorBits;
  72         };
  73
  74         runFactorsResult runFactors(GLenum srcFactorRGB, GLenum srcFactorA,
  75                                     GLenum dstFactorRGB, GLenum dstFactorA,
  76                                     GLenum opRGB, GLenum opA,
  77                                     const GLfloat constantColor[4],
  78                                     GLEAN::DrawingSurfaceConfig& config,
  79                                     GLEAN::Environment& env,
  80                                     float rgbTolerance, float alphaTolerance);
  81
  82         bool runCombo(BlendFuncResult& r, Window& w,
  83                       BlendFuncResult::PartialResult p,
  84                       GLEAN::Environment& env,
  85                       float rgbTolerance, float alphaTolerance);
  86
  87         bool equalMode(const BlendFuncResult::PartialResult &r1,
  88                        const BlendFuncResult::PartialResult &r2) const;
  89
  90         void printMode(const BlendFuncResult::PartialResult &r) const;
  91
  92         bool haveSepFunc;
  93         bool haveBlendEquation;
  94         bool haveBlendEquationSep;
  95         bool haveBlendColor;
  96
  97 }; // class BlendFuncTest
  98
  99 } // namespace GLEAN
 100
 101 #endif // __tblend_h__