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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
/*
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 <string.h>
#include "render/gl.h"
#include "render/textures.h"
#include "render/tga.h"
#include "render/pngfile.h"
#include "render/jpgfile.h"
#include "sys/sys.h"
#include "core/application.h"
namespace render
{
std::map<std::string, size_t> Textures::registry;
GLuint Textures::textures[MAXTEXTURES];
void Textures::init()
{
con_print << "^BLoading textures..." << std::endl;
if (registry.size()) {
clear();
} else {
memset(textures,0, sizeof(textures));
}
// "no texture" bitmap
load("textures/common/notex");
// gui font
if (!load("bitmaps/fonts/gui", false)) {
con_error << "Essential file bitmaps/fonts/gui missing" << std::endl;
core::application()->shutdown();
}
// crosshairs
load("bitmaps/pointers/pointer");
load("bitmaps/pointers/aim");
load("bitmaps/pointers/center");
load("bitmaps/pointers/control");
load("bitmaps/pointers/target");
}
void Textures::shutdown()
{
clear();
}
void Textures::list()
{
for (iterator it = registry.begin(); it != registry.end(); it++) {
con_print << " " << (*it).first << " " << (*it).second << std::endl;
}
con_print << registry.size() << " loaded textures" << std::endl;
}
void Textures::clear()
{
for (size_t i=0; i < MAXTEXTURES; i++) {
if (textures[i]) {
glDeleteTextures(1, &textures[i]);
}
}
registry.clear();
memset(textures,0, sizeof(textures));
}
void Textures::unload(std::string name)
{
iterator it = registry.find(name);
if (it != registry.end()) {
con_debug << " unloading " << (*it).first << std::endl;
size_t id = (*it).second;
if (textures[id]) {
glDeleteTextures(1, &textures[id]);
}
registry.erase(it);
}
}
void Textures::unload(size_t id)
{
// find in map
for (iterator it = registry.begin(); it != registry.end(); it++) {
if ((*it).second == id) {
con_debug << " unloading " << (*it).first << std::endl;
size_t id = (*it).second;
if (textures[id]) {
glDeleteTextures(1, &textures[id]);
}
registry.erase(it);
break;
}
}
}
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;
// find first available texture
size_t id = 0;
while ((id < MAXTEXTURES) && (textures[id])) {
id++;
}
if (id == MAXTEXTURES) {
con_error << "Texture limit " << MAXTEXTURES << " exceeded!" << std::endl;
registry[name] = 0;
return 0;
}
std::string filename;
Image *image = 0;
if (!image) {
// try the png version
filename.assign(name);
filename.append(".png");
image = PNG::load(filename.c_str());
}
if (!image) {
// try the tga version
filename.assign(name);
filename.append(".tga");
image = TGA::load(filename.c_str());
}
if (!image) {
// try the jpg version
filename.assign(name);
filename.append(".jpg");
image = JPG::load(filename.c_str());
}
if (!image) {
// add to the registry with id 0 (texture not found)
con_warn << "Could not open " << filename << std::endl;
registry[name] = 0;
return 0;
}
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;
// 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 (!textures[id])
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);
}
}
}
|
