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 enum
  38 {
  39         EXEC_VEC_WIDTH  = 64
  40 };
  41
  42 typedef ConstStridedValueAccess<EXEC_VEC_WIDTH>                 ExecConstValueAccess;
  43 typedef StridedValueAccess<EXEC_VEC_WIDTH>                              ExecValueAccess;
  44 typedef ValueStorage<EXEC_VEC_WIDTH>                                    ExecValueStorage;
  45
  46 typedef std::map<const Variable*, ExecValueStorage*>    VarValueMap;
  47
  48 class ExecMaskStorage
  49 {
  50 public:
  51                                                         ExecMaskStorage (bool initVal = true);
  52
  53         ExecValueAccess                 getValue                (void);
  54         ExecConstValueAccess    getValue                (void) const;
  55
  56 private:
  57         Scalar                                  m_data[EXEC_VEC_WIDTH];
  58 };
  59
  60 class ExecutionContext
  61 {
  62 public:
  63                                                                         ExecutionContext                (const Sampler2DMap& samplers2D, const SamplerCubeMap& samplersCube);
  64                                                                         ~ExecutionContext               (void);
  65
  66         ExecValueAccess                                 getValue                                (const Variable* variable);
  67         const Sampler2D&                                getSampler2D                    (const Variable* variable) const;
  68         const SamplerCube&                              getSamplerCube                  (const Variable* variable) const;
  69
  70         ExecConstValueAccess                    getExecutionMask                (void) const;
  71
  72         void                                                    andExecutionMask                (ExecConstValueAccess value); // Pushes computed value
  73         void                                                    pushExecutionMask               (ExecConstValueAccess value);
  74
  75         void                                                    popExecutionMask                (void);
  76
  77 protected:
  78                                                                         ExecutionContext                (const ExecutionContext& other);
  79         ExecutionContext&                               operator=                               (const ExecutionContext& other);
  80
  81         VarValueMap                                             m_varValues;
  82         const Sampler2DMap&                             m_samplers2D;
  83         const SamplerCubeMap&                   m_samplersCube;
  84         std::vector<ExecMaskStorage>    m_execMaskStack;
  85 };
  86
  87 void assignMasked (ExecValueAccess dst, ExecConstValueAccess src, ExecConstValueAccess mask);
  88
  89 } // rsg
  90
  91 #endif // _RSGEXECUTIONCONTEXT_HPP