• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 /*-------------------------------------------------------------------------
2  * drawElements Quality Program OpenGL Utilities
3  * ---------------------------------------------
4  *
5  * Copyright 2014 The Android Open Source Project
6  *
7  * Licensed under the Apache License, Version 2.0 (the "License");
8  * you may not use this file except in compliance with the License.
9  * You may obtain a copy of the License at
10  *
11  *      http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing, software
14  * distributed under the License is distributed on an "AS IS" BASIS,
15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16  * See the License for the specific language governing permissions and
17  * limitations under the License.
18  *
19  *//*!
20  * \file
21  * \brief Program interface query utilities
22  *//*--------------------------------------------------------------------*/
23 
24 #include "gluProgramInterfaceQuery.hpp"
25 #include "glwFunctions.hpp"
26 #include "glwEnums.hpp"
27 
28 #include <sstream>
29 
30 namespace glu
31 {
32 
getProgramResourceUint(const glw::Functions & gl,deUint32 program,deUint32 programInterface,deUint32 index,deUint32 queryParam)33 deUint32 getProgramResourceUint (const glw::Functions& gl, deUint32 program, deUint32 programInterface, deUint32 index, deUint32 queryParam)
34 {
35 	deUint32 value = 0;
36 	gl.getProgramResourceiv(program, programInterface, index, 1, &queryParam, 1, DE_NULL, (int*)&value);
37 	GLU_EXPECT_NO_ERROR(gl.getError(), "glGetProgramResourceiv()");
38 	return value;
39 }
40 
getProgramResourceName(const glw::Functions & gl,deUint32 program,deUint32 programInterface,deUint32 index,std::string & dst)41 void getProgramResourceName (const glw::Functions& gl, deUint32 program, deUint32 programInterface, deUint32 index, std::string& dst)
42 {
43 	const int length = getProgramResourceInt(gl, program, programInterface, index, GL_NAME_LENGTH);
44 
45 	if (length > 0)
46 	{
47 		std::vector<char> buf(length+1);
48 		gl.getProgramResourceName(program, programInterface, index, (int)buf.size(), DE_NULL, &buf[0]);
49 		GLU_EXPECT_NO_ERROR(gl.getError(), "glGetProgramResourceName()");
50 
51 		dst = (const char*)&buf[0];
52 	}
53 	else
54 	{
55 		std::ostringstream msg;
56 		msg << "Empty name returned for " << programInterface << " at index " << index;
57 		throw tcu::TestError(msg.str());
58 	}
59 }
60 
getProgramInterfaceActiveVariables(const glw::Functions & gl,deUint32 program,deUint32 programInterface,deUint32 index,std::vector<int> & activeVariables)61 static void getProgramInterfaceActiveVariables (const glw::Functions& gl, deUint32 program, deUint32 programInterface, deUint32 index, std::vector<int>& activeVariables)
62 {
63 	const int numActiveVariables = getProgramResourceInt(gl, program, programInterface, index, GL_NUM_ACTIVE_VARIABLES);
64 
65 	activeVariables.resize(numActiveVariables);
66 	if (numActiveVariables > 0)
67 	{
68 		const deUint32 queryParam = GL_ACTIVE_VARIABLES;
69 		gl.getProgramResourceiv(program, programInterface, index, 1, &queryParam, (int)activeVariables.size(), DE_NULL, &activeVariables[0]);
70 		GLU_EXPECT_NO_ERROR(gl.getError(), "glGetProgramResourceiv(GL_PROGRAM_ACTIVE_VARIABLES)");
71 	}
72 }
73 
getProgramInterfaceBlockInfo(const glw::Functions & gl,deUint32 program,deUint32 programInterface,deUint32 index,InterfaceBlockInfo & info)74 void getProgramInterfaceBlockInfo (const glw::Functions& gl, deUint32 program, deUint32 programInterface, deUint32 index, InterfaceBlockInfo& info)
75 {
76 	info.index			= index;
77 	info.bufferBinding	= getProgramResourceUint(gl, program, programInterface, index, GL_BUFFER_BINDING);
78 	info.dataSize		= getProgramResourceUint(gl, program, programInterface, index, GL_BUFFER_DATA_SIZE);
79 
80 	getProgramInterfaceActiveVariables(gl, program, programInterface, index, info.activeVariables);
81 
82 	if (programInterface != GL_ATOMIC_COUNTER_BUFFER)
83 		getProgramResourceName(gl, program, programInterface, index, info.name);
84 }
85 
getProgramInterfaceVariableInfo(const glw::Functions & gl,deUint32 program,deUint32 programInterface,deUint32 index,InterfaceVariableInfo & info)86 void getProgramInterfaceVariableInfo (const glw::Functions& gl, deUint32 program, deUint32 programInterface, deUint32 index, InterfaceVariableInfo& info)
87 {
88 	// \todo [2013-08-27 pyry] Batch queries!
89 	info.index			= index;
90 	info.blockIndex		= getProgramResourceUint(gl, program, programInterface, index, GL_BLOCK_INDEX);
91 	info.type			= getProgramResourceUint(gl, program, programInterface, index, GL_TYPE);
92 	info.arraySize		= getProgramResourceUint(gl, program, programInterface, index, GL_ARRAY_SIZE);
93 	info.offset			= getProgramResourceUint(gl, program, programInterface, index, GL_OFFSET);
94 	info.arrayStride	= getProgramResourceUint(gl, program, programInterface, index, GL_ARRAY_STRIDE);
95 	info.matrixStride	= getProgramResourceUint(gl, program, programInterface, index, GL_MATRIX_STRIDE);
96 	info.isRowMajor		= getProgramResourceUint(gl, program, programInterface, index, GL_IS_ROW_MAJOR) != GL_FALSE;
97 
98 	if (programInterface == GL_UNIFORM)
99 		info.atomicCounterBufferIndex = getProgramResourceUint(gl, program, programInterface, index, GL_ATOMIC_COUNTER_BUFFER_INDEX);
100 
101 	if (programInterface == GL_BUFFER_VARIABLE)
102 	{
103 		info.topLevelArraySize		= getProgramResourceUint(gl, program, programInterface, index, GL_TOP_LEVEL_ARRAY_SIZE);
104 		info.topLevelArrayStride	= getProgramResourceUint(gl, program, programInterface, index, GL_TOP_LEVEL_ARRAY_STRIDE);
105 	}
106 
107 	getProgramResourceName(gl, program, programInterface, index, info.name);
108 }
109 
110 } // glu
111