1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/*
* The ManaPlus Client
* Copyright (C) 2014-2015 The ManaPlus Developers
*
* This file is part of The ManaPlus Client.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "render/shaders/shadersmanager.h"
#ifdef USE_OPENGL
#include "configuration.h"
#include "logger.h"
#include "render/opengl/mgl.h"
#ifdef __native_client__
#include "render/opengl/naclglfunctions.h"
#endif
#include "render/shaders/shader.h"
#include "render/shaders/shaderprogram.h"
#include "resources/resourcemanager.h"
#include "utils/files.h"
#include "debug.h"
ShadersManager shaders;
Shader *ShadersManager::createShader(const unsigned int type,
const std::string &fileName)
{
const std::string str = Files::loadTextFileString(fileName);
const char *ptrStr = str.c_str();
GLuint shaderId = mglCreateShader(type);
mglShaderSource(shaderId, 1, &ptrStr, nullptr);
mglCompileShader(shaderId);
GLint isCompiled = 0;
mglGetShaderiv(shaderId, GL_COMPILE_STATUS, &isCompiled);
if (isCompiled == GL_TRUE)
return new Shader(shaderId);
GLint len = 0;
mglGetShaderiv(shaderId, GL_INFO_LOG_LENGTH, &len);
char *buf = new char[static_cast<size_t>(len) + 1];
mglGetShaderInfoLog(shaderId, len, &len, buf);
buf[len] = 0;
logger->log("Shader '%s' compilation error: %s", fileName.c_str(), buf);
delete [] buf;
mglDeleteShader(shaderId);
return nullptr;
}
ShaderProgram *ShadersManager::createProgram(const std::string &vertex,
const std::string &fragment,
const bool isNewShader)
{
Shader *const vertexShader = static_cast<Shader*>(
resourceManager->getShader(GL_VERTEX_SHADER, vertex));
if (!vertexShader)
return nullptr;
Shader *const fragmentShader = static_cast<Shader*>(
resourceManager->getShader(GL_FRAGMENT_SHADER, fragment));
if (!fragmentShader)
{
vertexShader->decRef();
return nullptr;
}
GLuint programId = mglCreateProgram();
if (!programId)
{
vertexShader->decRef();
fragmentShader->decRef();
return nullptr;
}
mglAttachShader(programId, vertexShader->getShaderId());
mglAttachShader(programId, fragmentShader->getShaderId());
if (isNewShader)
mglBindFragDataLocation(programId, 0, "outColor");
else
mglBindAttribLocation(programId, 0, "position");
mglLinkProgram(programId);
GLint isLinked = 0;
mglGetProgramiv(programId, GL_LINK_STATUS, &isLinked);
if (isLinked == GL_TRUE)
{
mglValidateProgram(programId);
GLint isValidated = 0;
mglGetProgramiv(programId, GL_VALIDATE_STATUS, &isValidated);
if (isValidated == GL_TRUE)
return new ShaderProgram(programId, vertexShader, fragmentShader);
mglDeleteProgram(programId);
return nullptr;
}
GLint len = 0;
mglGetProgramiv(programId, GL_INFO_LOG_LENGTH, &len);
char *buf = new char[static_cast<size_t>(len) + 1];
mglGetProgramInfoLog(programId, len, &len, buf);
buf[len] = 0;
logger->log("Program '%s, %s' compilation error: %s",
vertexShader->getIdPath().c_str(),
fragmentShader->getIdPath().c_str(),
buf);
delete [] buf;
mglDeleteProgram(programId);
return nullptr;
}
ShaderProgram *ShadersManager::getSimpleProgram()
{
const std::string dir = paths.getStringValue("shaders");
return createProgram(dir + paths.getStringValue("simpleVertexShader"),
dir + paths.getStringValue("simpleFragmentShader"),
true);
}
ShaderProgram *ShadersManager::getGles2Program()
{
const std::string dir = paths.getStringValue("shaders");
return createProgram(dir + paths.getStringValue("gles2VertexShader"),
dir + paths.getStringValue("gles2FragmentShader"),
false);
}
#endif
|
