1#ifndef _GLUSHADERUTIL_HPP
2#define _GLUSHADERUTIL_HPP
3/*-------------------------------------------------------------------------
4 * drawElements Quality Program OpenGL ES Utilities
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 utilities.
24 *//*--------------------------------------------------------------------*/
25
26#include "tcuDefs.hpp"
27#include "deInt32.h"
28#include "gluRenderContext.hpp"
29#include "tcuVector.hpp"
30#include "tcuVector.hpp"
31#include "tcuMatrix.hpp"
32
33namespace glu
34{
35
36// ShadingLanguageVersion
37
38enum GLSLVersion
39{
40	GLSL_VERSION_100_ES = 0,	//!< GLSL ES 1.0
41	GLSL_VERSION_300_ES,		//!< GLSL ES 3.0
42	GLSL_VERSION_310_ES,		//!< GLSL ES 3.1
43
44	GLSL_VERSION_130,			//!< GLSL 1.3
45	GLSL_VERSION_140,			//!< GLSL 1.4
46	GLSL_VERSION_150,			//!< GLSL 1.5
47	GLSL_VERSION_330,			//!< GLSL 3.0
48	GLSL_VERSION_400,			//!< GLSL 4.0
49	GLSL_VERSION_410,			//!< GLSL 4.1
50	GLSL_VERSION_420,			//!< GLSL 4.2
51	GLSL_VERSION_430,			//!< GLSL 4.3
52	GLSL_VERSION_440,			//!< GLSL 4.4
53
54	GLSL_VERSION_LAST
55};
56
57const char*		getGLSLVersionName				(GLSLVersion version);
58const char*		getGLSLVersionDeclaration		(GLSLVersion version);
59bool			glslVersionUsesInOutQualifiers	(GLSLVersion version);
60bool			glslVersionIsES					(GLSLVersion version);
61bool			isGLSLVersionSupported			(ContextType type, GLSLVersion version);
62GLSLVersion		getContextTypeGLSLVersion		(ContextType type);
63
64// ShaderType
65
66enum ShaderType
67{
68	SHADERTYPE_VERTEX = 0,
69	SHADERTYPE_FRAGMENT,
70	SHADERTYPE_GEOMETRY,
71	SHADERTYPE_TESSELLATION_CONTROL,
72	SHADERTYPE_TESSELLATION_EVALUATION,
73	SHADERTYPE_COMPUTE,
74
75	SHADERTYPE_LAST
76};
77
78const char*	getShaderTypeName (ShaderType shaderType);
79
80// Precision
81
82enum Precision
83{
84	PRECISION_LOWP = 0,
85	PRECISION_MEDIUMP,
86	PRECISION_HIGHP,
87
88	PRECISION_LAST
89};
90
91const char* getPrecisionName (Precision precision);
92
93// DataType
94
95enum DataType
96{
97	TYPE_INVALID	= 0,
98
99	TYPE_FLOAT,
100	TYPE_FLOAT_VEC2,
101	TYPE_FLOAT_VEC3,
102	TYPE_FLOAT_VEC4,
103	TYPE_FLOAT_MAT2,
104	TYPE_FLOAT_MAT2X3,
105	TYPE_FLOAT_MAT2X4,
106	TYPE_FLOAT_MAT3X2,
107	TYPE_FLOAT_MAT3,
108	TYPE_FLOAT_MAT3X4,
109	TYPE_FLOAT_MAT4X2,
110	TYPE_FLOAT_MAT4X3,
111	TYPE_FLOAT_MAT4,
112
113	TYPE_INT,
114	TYPE_INT_VEC2,
115	TYPE_INT_VEC3,
116	TYPE_INT_VEC4,
117
118	TYPE_UINT,
119	TYPE_UINT_VEC2,
120	TYPE_UINT_VEC3,
121	TYPE_UINT_VEC4,
122
123	TYPE_BOOL,
124	TYPE_BOOL_VEC2,
125	TYPE_BOOL_VEC3,
126	TYPE_BOOL_VEC4,
127
128	TYPE_SAMPLER_1D,
129	TYPE_SAMPLER_2D,
130	TYPE_SAMPLER_CUBE,
131	TYPE_SAMPLER_2D_ARRAY,
132	TYPE_SAMPLER_3D,
133	TYPE_SAMPLER_CUBE_ARRAY,
134
135	TYPE_SAMPLER_1D_SHADOW,
136	TYPE_SAMPLER_2D_SHADOW,
137	TYPE_SAMPLER_CUBE_SHADOW,
138	TYPE_SAMPLER_2D_ARRAY_SHADOW,
139	TYPE_SAMPLER_CUBE_ARRAY_SHADOW,
140
141	TYPE_INT_SAMPLER_1D,
142	TYPE_INT_SAMPLER_2D,
143	TYPE_INT_SAMPLER_CUBE,
144	TYPE_INT_SAMPLER_2D_ARRAY,
145	TYPE_INT_SAMPLER_3D,
146	TYPE_INT_SAMPLER_CUBE_ARRAY,
147
148	TYPE_UINT_SAMPLER_1D,
149	TYPE_UINT_SAMPLER_2D,
150	TYPE_UINT_SAMPLER_CUBE,
151	TYPE_UINT_SAMPLER_2D_ARRAY,
152	TYPE_UINT_SAMPLER_3D,
153	TYPE_UINT_SAMPLER_CUBE_ARRAY,
154
155	TYPE_SAMPLER_2D_MULTISAMPLE,
156	TYPE_INT_SAMPLER_2D_MULTISAMPLE,
157	TYPE_UINT_SAMPLER_2D_MULTISAMPLE,
158
159	TYPE_IMAGE_2D,
160	TYPE_IMAGE_CUBE,
161	TYPE_IMAGE_2D_ARRAY,
162	TYPE_IMAGE_3D,
163	TYPE_IMAGE_CUBE_ARRAY,
164
165	TYPE_INT_IMAGE_2D,
166	TYPE_INT_IMAGE_CUBE,
167	TYPE_INT_IMAGE_2D_ARRAY,
168	TYPE_INT_IMAGE_3D,
169	TYPE_INT_IMAGE_CUBE_ARRAY,
170
171	TYPE_UINT_IMAGE_2D,
172	TYPE_UINT_IMAGE_CUBE,
173	TYPE_UINT_IMAGE_2D_ARRAY,
174	TYPE_UINT_IMAGE_3D,
175	TYPE_UINT_IMAGE_CUBE_ARRAY,
176
177	TYPE_UINT_ATOMIC_COUNTER,
178
179	TYPE_LAST
180};
181
182const char*		getDataTypeName				(DataType dataType);
183int				getDataTypeScalarSize		(DataType dataType);
184DataType		getDataTypeScalarType		(DataType dataType);
185DataType		getDataTypeFloatScalars		(DataType dataType);
186DataType		getDataTypeVector			(DataType scalarType, int size);
187DataType		getDataTypeFloatVec			(int vecSize);
188DataType		getDataTypeIntVec			(int vecSize);
189DataType		getDataTypeUintVec			(int vecSize);
190DataType		getDataTypeBoolVec			(int vecSize);
191DataType		getDataTypeMatrix			(int numCols, int numRows);
192DataType		getDataTypeFromGLType		(deUint32 glType);
193
194inline bool		isDataTypeFloatOrVec		(DataType dataType)	{ return (dataType >= TYPE_FLOAT)      && (dataType <= TYPE_FLOAT_VEC4);   }
195inline bool		isDataTypeMatrix			(DataType dataType)	{ return (dataType >= TYPE_FLOAT_MAT2) && (dataType <= TYPE_FLOAT_MAT4);   }
196inline bool		isDataTypeIntOrIVec			(DataType dataType)	{ return (dataType >= TYPE_INT)        && (dataType <= TYPE_INT_VEC4);     }
197inline bool		isDataTypeUintOrUVec		(DataType dataType)	{ return (dataType >= TYPE_UINT)       && (dataType <= TYPE_UINT_VEC4);     }
198inline bool		isDataTypeBoolOrBVec		(DataType dataType)	{ return (dataType >= TYPE_BOOL)       && (dataType <= TYPE_BOOL_VEC4);    }
199inline bool		isDataTypeScalar			(DataType dataType) { return (dataType == TYPE_FLOAT) || (dataType == TYPE_INT) || (dataType == TYPE_UINT) || (dataType == TYPE_BOOL); }
200inline bool		isDataTypeVector			(DataType dataType) { return deInRange32(dataType, TYPE_FLOAT_VEC2, TYPE_FLOAT_VEC4) || deInRange32(dataType, TYPE_INT_VEC2, TYPE_INT_VEC4) || deInRange32(dataType, TYPE_UINT_VEC2, TYPE_UINT_VEC4) || deInRange32(dataType, TYPE_BOOL_VEC2, TYPE_BOOL_VEC4); }
201inline bool		isDataTypeScalarOrVector	(DataType dataType) { return deInRange32(dataType, TYPE_FLOAT, TYPE_FLOAT_VEC4) || deInRange32(dataType, TYPE_INT, TYPE_INT_VEC4) || deInRange32(dataType, TYPE_UINT, TYPE_UINT_VEC4) || deInRange32(dataType, TYPE_BOOL, TYPE_BOOL_VEC4); }
202inline bool		isDataTypeSampler			(DataType dataType)	{ return (dataType >= TYPE_SAMPLER_1D) && (dataType <= TYPE_UINT_SAMPLER_2D_MULTISAMPLE); }
203inline bool		isDataTypeImage				(DataType dataType)	{ return (dataType >= TYPE_IMAGE_2D) && (dataType <= TYPE_UINT_IMAGE_3D); }
204inline bool		isDataTypeSamplerMultisample(DataType dataType)	{ return (dataType >= TYPE_SAMPLER_2D_MULTISAMPLE) && (dataType <= TYPE_UINT_SAMPLER_2D_MULTISAMPLE); }
205inline bool		isDataTypeAtomicCounter		(DataType dataType)	{ return dataType == TYPE_UINT_ATOMIC_COUNTER; }
206
207int				getDataTypeMatrixNumRows	(DataType dataType);
208int				getDataTypeMatrixNumColumns	(DataType dataType);
209
210int				getDataTypeNumLocations		(DataType dataType);
211int				getDataTypeNumComponents	(DataType dataType);
212
213template <typename T>
214struct DataTypeTraits;
215
216template <> struct DataTypeTraits<float>		{ enum { DATATYPE = TYPE_FLOAT			}; };
217template <> struct DataTypeTraits<bool>			{ enum { DATATYPE = TYPE_BOOL			}; };
218template <> struct DataTypeTraits<int>			{ enum { DATATYPE = TYPE_INT			}; };
219template <> struct DataTypeTraits<deUint32>		{ enum { DATATYPE = TYPE_UINT			}; };
220template <> struct DataTypeTraits<tcu::Mat2>	{ enum { DATATYPE = TYPE_FLOAT_MAT2		}; };
221template <> struct DataTypeTraits<tcu::Mat2x3>	{ enum { DATATYPE = TYPE_FLOAT_MAT2X3	}; };
222template <> struct DataTypeTraits<tcu::Mat2x4>	{ enum { DATATYPE = TYPE_FLOAT_MAT2X4	}; };
223template <> struct DataTypeTraits<tcu::Mat3x2>	{ enum { DATATYPE = TYPE_FLOAT_MAT3X2	}; };
224template <> struct DataTypeTraits<tcu::Mat3>	{ enum { DATATYPE = TYPE_FLOAT_MAT3		}; };
225template <> struct DataTypeTraits<tcu::Mat3x4>	{ enum { DATATYPE = TYPE_FLOAT_MAT3X4	}; };
226template <> struct DataTypeTraits<tcu::Mat4x2>	{ enum { DATATYPE = TYPE_FLOAT_MAT4X2	}; };
227template <> struct DataTypeTraits<tcu::Mat4x3>	{ enum { DATATYPE = TYPE_FLOAT_MAT4X3	}; };
228template <> struct DataTypeTraits<tcu::Mat4>	{ enum { DATATYPE = TYPE_FLOAT_MAT4		}; };
229
230template <typename T, int Size>
231struct DataTypeTraits<tcu::Vector<T, Size> >
232{
233	DE_STATIC_ASSERT(TYPE_FLOAT_VEC4 == TYPE_FLOAT + 3);
234	DE_STATIC_ASSERT(TYPE_INT_VEC4 == TYPE_INT + 3);
235	DE_STATIC_ASSERT(TYPE_UINT_VEC4 == TYPE_UINT + 3);
236	DE_STATIC_ASSERT(TYPE_BOOL_VEC4 == TYPE_BOOL + 3);
237	enum { DATATYPE = DataTypeTraits<T>::DATATYPE + Size - 1 };
238};
239
240template <typename T>
241inline DataType	dataTypeOf (void) { return DataType(DataTypeTraits<T>::DATATYPE); }
242
243} // glu
244
245#endif // _GLUSHADERUTIL_HPP
246