framework/randomshaders/rsgExecutionContext.hpp

   1 #ifndef _RSGEXECUTIONCONTEXT_HPP
   2 #define _RSGEXECUTIONCONTEXT_HPP
   3 /*-------------------------------------------------------------------------
   4  * drawElements Quality Program Random Shader Generator
   5  * ----------------------------------------------------
   6  *
   7  * Copyright 2014 The Android Open Source Project
   8  *
   9  * Licensed under the Apache License, Version 2.0 (the "License");
  10  * you may not use this file except in compliance with the License.
  11  * You may obtain a copy of the License at
  12  *
  13  *      http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  * Unless required by applicable law or agreed to in writing, software
  16  * distributed under the License is distributed on an "AS IS" BASIS,
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  * See the License for the specific language governing permissions and
  19  * limitations under the License.
  20  *
  21  *//*!
  22  * \file
  23  * \brief Shader Execution Context.
  24  *//*--------------------------------------------------------------------*/
  25
  26 #include "rsgDefs.hpp"
  27 #include "rsgVariable.hpp"
  28 #include "rsgVariableValue.hpp"
  29 #include "rsgSamplers.hpp"
  30
  31 #include <vector>
  32 #include <map>
  33
  34 namespace rsg
  35 {
  36
  37 constexpr int EXEC_VEC_WIDTH = 64;
  38
  39 typedef ConstStridedValueAccess<EXEC_VEC_WIDTH>                 ExecConstValueAccess;
  40 typedef StridedValueAccess<EXEC_VEC_WIDTH>                              ExecValueAccess;
  41 typedef ValueStorage<EXEC_VEC_WIDTH>                                    ExecValueStorage;
  42
  43 typedef std::map<const Variable*, ExecValueStorage*>    VarValueMap;
  44
  45 class ExecMaskStorage
  46 {
  47 public:
  48                                                         ExecMaskStorage (bool initVal = true);
  49
  50         ExecValueAccess                 getValue                (void);
  51         ExecConstValueAccess    getValue                (void) const;
  52
  53 private:
  54         Scalar                                  m_data[EXEC_VEC_WIDTH];
  55 };
  56
  57 class ExecutionContext
  58 {
  59 public:
  60                                                                         ExecutionContext                (const Sampler2DMap& samplers2D, const SamplerCubeMap& samplersCube);
  61                                                                         ~ExecutionContext               (void);
  62
  63         ExecValueAccess                                 getValue                                (const Variable* variable);
  64         const Sampler2D&                                getSampler2D                    (const Variable* variable) const;
  65         const SamplerCube&                              getSamplerCube                  (const Variable* variable) const;
  66
  67         ExecConstValueAccess                    getExecutionMask                (void) const;
  68
  69         void                                                    andExecutionMask                (ExecConstValueAccess value); // Pushes computed value
  70         void                                                    pushExecutionMask               (ExecConstValueAccess value);
  71
  72         void                                                    popExecutionMask                (void);
  73
  74 protected:
  75                                                                         ExecutionContext                (const ExecutionContext& other);
  76         ExecutionContext&                               operator=                               (const ExecutionContext& other);
  77
  78         VarValueMap                                             m_varValues;
  79         const Sampler2DMap&                             m_samplers2D;
  80         const SamplerCubeMap&                   m_samplersCube;
  81         std::vector<ExecMaskStorage>    m_execMaskStack;
  82 };
  83
  84 void assignMasked (ExecValueAccess dst, ExecConstValueAccess src, ExecConstValueAccess mask);
  85
  86 } // rsg
  87
  88 #endif // _RSGEXECUTIONCONTEXT_HPP