| rev |
line source |
|
nuclear@11
|
1 #include <string.h>
|
|
nuclear@11
|
2 #include "opengl.h"
|
|
nuclear@11
|
3 #include "imago2.h"
|
|
nuclear@11
|
4 #include "texman.h"
|
|
nuclear@11
|
5 #include "datapath.h"
|
|
nuclear@11
|
6
|
|
nuclear@43
|
7 unsigned int load_texture(const char *fname);
|
|
nuclear@43
|
8
|
|
nuclear@11
|
9 TextureSet::~TextureSet()
|
|
nuclear@11
|
10 {
|
|
nuclear@11
|
11 for(auto iter : textures) {
|
|
nuclear@11
|
12 glDeleteTextures(1, &iter.second);
|
|
nuclear@11
|
13 }
|
|
nuclear@11
|
14 }
|
|
nuclear@11
|
15
|
|
nuclear@11
|
16 unsigned int TextureSet::get_texture(const char *fname) const
|
|
nuclear@11
|
17 {
|
|
nuclear@11
|
18 auto iter = textures.find(fname);
|
|
nuclear@11
|
19 if(iter != textures.end()) {
|
|
nuclear@11
|
20 return iter->second;
|
|
nuclear@11
|
21 }
|
|
nuclear@11
|
22
|
|
nuclear@11
|
23 const char *path, *slash;
|
|
nuclear@11
|
24 if((slash = strrchr(fname, '/'))) {
|
|
nuclear@11
|
25 path = slash + 1;
|
|
nuclear@11
|
26 }
|
|
nuclear@11
|
27 path = datafile_path(path);
|
|
nuclear@11
|
28
|
|
nuclear@11
|
29 printf("loading texture: %s\n", path);
|
|
nuclear@43
|
30 unsigned int tex = load_texture(path);
|
|
nuclear@11
|
31 if(tex) {
|
|
nuclear@11
|
32 textures[fname] = tex;
|
|
nuclear@11
|
33 } else {
|
|
nuclear@11
|
34 fprintf(stderr, "failed to load texture: %s\n", path);
|
|
nuclear@11
|
35 }
|
|
nuclear@11
|
36 return tex;
|
|
nuclear@11
|
37 }
|
|
nuclear@43
|
38
|
|
nuclear@43
|
39 unsigned int load_texture(const char *fname)
|
|
nuclear@43
|
40 {
|
|
nuclear@43
|
41 struct img_pixmap img;
|
|
nuclear@43
|
42
|
|
nuclear@43
|
43 img_init(&img);
|
|
nuclear@43
|
44 if(img_load(&img, fname) == -1) {
|
|
nuclear@43
|
45 img_destroy(&img);
|
|
nuclear@43
|
46 return 0;
|
|
nuclear@43
|
47 }
|
|
nuclear@43
|
48
|
|
nuclear@43
|
49 unsigned int intfmt = img_glintfmt(&img);
|
|
nuclear@43
|
50 unsigned int fmt = img_glfmt(&img);
|
|
nuclear@43
|
51 unsigned int type = img_gltype(&img);
|
|
nuclear@43
|
52
|
|
nuclear@43
|
53 unsigned int tex;
|
|
nuclear@43
|
54 glGenTextures(1, &tex);
|
|
nuclear@43
|
55 glBindTexture(GL_TEXTURE_2D, tex);
|
|
nuclear@43
|
56 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
|
|
nuclear@43
|
57 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
nuclear@43
|
58 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
|
nuclear@43
|
59 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
|
nuclear@43
|
60
|
|
nuclear@43
|
61 if(GLEW_SGIS_generate_mipmap) {
|
|
nuclear@43
|
62 glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE);
|
|
nuclear@43
|
63 glTexImage2D(GL_TEXTURE_2D, 0, intfmt, img.width, img.height, 0, fmt, type, img.pixels);
|
|
nuclear@43
|
64 } else {
|
|
nuclear@43
|
65 gluBuild2DMipmaps(GL_TEXTURE_2D, intfmt, img.width, img.height, fmt, type, img.pixels);
|
|
nuclear@43
|
66 }
|
|
nuclear@43
|
67
|
|
nuclear@43
|
68 img_destroy(&img);
|
|
nuclear@43
|
69 return tex;
|
|
nuclear@43
|
70 }
|
