Add image loader
This commit is contained in:
parent
40b1fd6a2a
commit
1b0b3fed8e
2 changed files with 25 additions and 1 deletions
|
@ -2,6 +2,7 @@
|
|||
#define DEMO_UTILS_H 1
|
||||
|
||||
#include <GL4D/gl4duw_SDL2.h>
|
||||
#include <SDL_image.h>
|
||||
#include <string.h>
|
||||
|
||||
// Récupère un delta-temps
|
||||
|
@ -25,7 +26,10 @@ void bindAndLoadf(const char *name);
|
|||
* `-z` => move away */
|
||||
void move(GLfloat x, GLfloat y, GLfloat z);
|
||||
|
||||
/* Rotate a vector XYZ */
|
||||
// Rotate a vector XYZ
|
||||
void rotate_vec(GLfloat *, GLfloat);
|
||||
|
||||
// Load an image into a GL texture
|
||||
void load_img(const char *filename, GLuint texture);
|
||||
|
||||
#endif
|
||||
|
|
20
src/utils.c
20
src/utils.c
|
@ -26,3 +26,23 @@ void rotate_vec(GLfloat *vec, GLfloat angle) {
|
|||
vec[1] = y * cosTheta - z * sinTheta;
|
||||
vec[2] = y * sinTheta + z * cosTheta;
|
||||
}
|
||||
|
||||
void load_img(const char *filename, GLuint texture) {
|
||||
glBindTexture(GL_TEXTURE_2D, texture);
|
||||
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
||||
|
||||
SDL_Surface *s = NULL;
|
||||
if (!(s = IMG_Load(filename))) {
|
||||
fprintf(stderr, "Erreur de chargement de l'image (IMG_Load)\n");
|
||||
}
|
||||
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, s->w, s->h, 0, GL_RGBA,
|
||||
GL_UNSIGNED_BYTE, s->pixels);
|
||||
SDL_FreeSurface(s);
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D, 0);
|
||||
}
|
||||
|
|
Reference in a new issue