dungeon_crawler
annotate prototype/src/texture.cc @ 61:4472ef41a209
forgot an extra mrt uniform in deferred_omni.p.glsl
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Tue, 25 Sep 2012 06:37:56 +0300 |
| parents | |
| children |
| rev | line source |
|---|---|
| nuclear@48 | 1 #include "opengl.h" |
| nuclear@48 | 2 #include "imago2.h" |
| nuclear@48 | 3 #include "texture.h" |
| nuclear@48 | 4 |
| nuclear@48 | 5 unsigned int load_texture(const char *fname) |
| nuclear@48 | 6 { |
| nuclear@48 | 7 struct img_pixmap img; |
| nuclear@48 | 8 |
| nuclear@48 | 9 img_init(&img); |
| nuclear@48 | 10 if(img_load(&img, fname) == -1) { |
| nuclear@48 | 11 img_destroy(&img); |
| nuclear@48 | 12 return 0; |
| nuclear@48 | 13 } |
| nuclear@48 | 14 |
| nuclear@48 | 15 unsigned int intfmt = img_glintfmt(&img); |
| nuclear@48 | 16 unsigned int fmt = img_glfmt(&img); |
| nuclear@48 | 17 unsigned int type = img_gltype(&img); |
| nuclear@48 | 18 |
| nuclear@48 | 19 unsigned int tex; |
| nuclear@48 | 20 glGenTextures(1, &tex); |
| nuclear@48 | 21 glBindTexture(GL_TEXTURE_2D, tex); |
| nuclear@48 | 22 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); |
| nuclear@48 | 23 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
| nuclear@48 | 24 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); |
| nuclear@48 | 25 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); |
| nuclear@48 | 26 |
| nuclear@48 | 27 if(GLEW_SGIS_generate_mipmap) { |
| nuclear@48 | 28 glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE); |
| nuclear@48 | 29 glTexImage2D(GL_TEXTURE_2D, 0, intfmt, img.width, img.height, 0, fmt, type, img.pixels); |
| nuclear@48 | 30 } else { |
| nuclear@48 | 31 gluBuild2DMipmaps(GL_TEXTURE_2D, intfmt, img.width, img.height, fmt, type, img.pixels); |
| nuclear@48 | 32 } |
| nuclear@48 | 33 |
| nuclear@48 | 34 img_destroy(&img); |
| nuclear@48 | 35 return tex; |
| nuclear@48 | 36 } |
| nuclear@48 | 37 |
| nuclear@48 | 38 void destroy_texture(unsigned int tex) |
| nuclear@48 | 39 { |
| nuclear@48 | 40 glDeleteTextures(1, &tex); |
| nuclear@48 | 41 } |