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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
/*
render/textures.cc
This file is part of the Osirion project and is distributed under
the terms of the GNU General Public License version 2
*/
#include "render/gl.h"
#include "render/textures.h"
#include "render/tga.h"
#include "sys/sys.h"
#include "core/application.h"
namespace render
{
std::map<std::string, size_t> Textures::registry;
size_t Textures::index = 0;
GLuint Textures::textures[MAXTEXTURES];
void Textures::init()
{
clear();
con_print << "^BLoading textures..." << std::endl;
// "no texture" bitmap
load("textures/common/notex");
// console characters
if (!load("bitmaps/fonts/console", false)) {
con_error << "Essential file bitmaps/fonts/console missing" << std::endl;
core::application()->shutdown();
}
// console characters
if (!load("bitmaps/fonts/gui", false)) {
con_error << "Essential file bitmaps/fonts/gui missing" << std::endl;
core::application()->shutdown();
}
// loading screen background
load("bitmaps/loader");
// crosshairs
load("bitmaps/crosshairs/aim");
load("bitmaps/crosshairs/center");
load("bitmaps/crosshairs/control");
load("bitmaps/crosshairs/target");
// light flares
load("bitmaps/fx/flare00");
load("bitmaps/fx/flare01");
}
void Textures::shutdown()
{
clear();
}
void Textures::clear()
{
if (index)
glDeleteTextures(index, textures);
registry.clear();
memset(textures,0, sizeof(textures));
index = 0;
}
size_t Textures::load(std::string name, bool filter)
{
// check if it is already loaded
iterator it = registry.find(name);
if (it != registry.end())
return (*it).second;
// try the tga version
std::string filename(name);
filename.append(".tga");
Image *image = TGA::load(filename.c_str());
if (!image) {
// add to the registry with id 0 (texture not found)
registry[name] = 0;
return 0;
}
if (index == MAXTEXTURES) {
con_error << "Texture limit " << MAXTEXTURES << " exceeded!" << std::endl;
delete image;
registry[name] = 0;
return 0;
}
size_t id = index;
glGenTextures(1, &textures[id]);
glBindTexture(GL_TEXTURE_2D, textures[id]);
int texture_type;
if (image->channels() == 4)
texture_type = GL_RGBA;
else
texture_type = GL_RGB;
gluBuild2DMipmaps(GL_TEXTURE_2D, image->channels(),
image->width(), image->height(), texture_type, GL_UNSIGNED_BYTE, image->data());
set_filter(filter);
// add to the registry
registry[name] = id;
index++;
// delete image data
delete image;
return id;
}
size_t Textures::find(std::string name)
{
size_t id = 0;
iterator it = registry.find(name);
if (it != registry.end())
id = (*it).second;
return id;
}
size_t Textures::bind(std::string name, bool filter)
{
size_t id = 0;
iterator it = registry.find(name);
if (it != registry.end())
id = (*it).second;
else
id = load(name);
glBindTexture(GL_TEXTURE_2D, textures[id]);
set_filter(filter);
return id;
}
size_t Textures::bind(size_t texture, bool filter)
{
size_t id = texture;
if (texture >= index)
id = 0;
glBindTexture(GL_TEXTURE_2D, textures[id]);
set_filter(filter);
return id;
}
void Textures::set_filter(bool filter)
{
if (filter) {
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_NEAREST);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR_MIPMAP_LINEAR);
} else {
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
}
}
}
|
