extern
int glimageLoadAndBind (const char * fname, GLuint *tex) {
SDL_Surface * texSurface = NULL;
SDL_RWops *rwop = NULL;
char ShouldBeFlipped = 0;
int flags= IMG_INIT_JPG | IMG_INIT_PNG;
int initted= IMG_Init(flags);
int sign = (SDL_BYTEORDER == SDL_BIG_ENDIAN) ? 1 : -1;
printf("%s\n", fname);
if((initted & flags) != flags) {
printf("IMG_Init: Failed to init required jpg and png support!\n");
printf("IMG_Init: %s\n", IMG_GetError());
return 0;
}
if((texSurface = IMG_Load(fname)) == NULL ) {
fprintf(stderr, "Impossible d'ouvrir le fichier : %s\n", IMG_GetError());
return 0;
}
rwop=SDL_RWFromFile(fname, "rb");
//Si l'image est en JPEG ou PNG, il faut inverser
if (IMG_isJPG(rwop) || IMG_isBMP(rwop) || IMG_isPNG(rwop)) ShouldBeFlipped = 1;
if (ShouldBeFlipped) //invert_surface_vertical(texSurface);
FlipVertically(texSurface);
IMG_Quit();
glGenTextures(1, tex);
glBindTexture(GL_TEXTURE_2D, *tex);
if (texSurface->format->BytesPerPixel == 3){
if (sign * texSurface->format->Rshift > sign * texSurface->format->Bshift)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, texSurface->w, texSurface->h, 0, GL_RGB, GL_UNSIGNED_BYTE, texSurface->pixels);
else
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, texSurface->w, texSurface->h, 0, GL_BGR, GL_UNSIGNED_BYTE, texSurface->pixels);
}
if (texSurface->format->BytesPerPixel == 4){
if (sign * texSurface->format->Rshift > sign * texSurface->format->Bshift)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, texSurface->w, texSurface->h, 0, GL_RGBA, GL_UNSIGNED_BYTE, texSurface->pixels);
else
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, texSurface->w, texSurface->h, 0, GL_BGRA, GL_UNSIGNED_BYTE, texSurface->pixels);
}
SDL_FreeSurface(texSurface);
return 1;
}
int main(int argc, char *argv[])
{
Uint32 flags;
SDL_Surface *screen, *image;
int i, depth, done;
SDL_Event event;
#if 0
SDL_RWops* rw_ops;
#endif
/* Check command line usage */
if ( ! argv[1] ) {
fprintf(stderr, "Usage: %s <image_file>\n", argv[0]);
return(1);
}
/* Initialize the SDL library */
if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
return(255);
}
flags = SDL_SWSURFACE;
for ( i=1; argv[i]; ++i ) {
if ( strcmp(argv[i], "-fullscreen") == 0 ) {
SDL_ShowCursor(0);
flags |= SDL_FULLSCREEN;
continue;
}
#if 0
rw_ops = SDL_RWFromFile(argv[1], "r");
fprintf(stderr, "BMP:\t%d\n", IMG_isBMP(rw_ops));
fprintf(stderr, "GIF:\t%d\n", IMG_isGIF(rw_ops));
fprintf(stderr, "JPG:\t%d\n", IMG_isJPG(rw_ops));
fprintf(stderr, "PNG:\t%d\n", IMG_isPNG(rw_ops));
fprintf(stderr, "TIF:\t%d\n", IMG_isTIF(rw_ops));
/* fprintf(stderr, "TGA:\t%d\n", IMG_isTGA(rw_ops)); */
fprintf(stderr, "PCX:\t%d\n", IMG_isPCX(rw_ops));
#endif
/* Open the image file */
#ifdef XPM_INCLUDED
image = IMG_ReadXPMFromArray(picture_xpm);
#else
image = IMG_Load(argv[i]);
#endif
if ( image == NULL ) {
fprintf(stderr, "Couldn't load %s: %s\n",
argv[i], SDL_GetError());
continue;
}
SDL_WM_SetCaption(argv[i], "showimage");
/* Create a display for the image */
depth = SDL_VideoModeOK(image->w, image->h, 32, flags);
/* Use the deepest native mode, except that we emulate 32bpp
for viewing non-indexed images on 8bpp screens */
if ( depth == 0 ) {
if ( image->format->BytesPerPixel > 1 ) {
depth = 32;
} else {
depth = 8;
}
} else
if ( (image->format->BytesPerPixel > 1) && (depth == 8) ) {
depth = 32;
}
if(depth == 8)
flags |= SDL_HWPALETTE;
screen = SDL_SetVideoMode(image->w, image->h, depth, flags);
if ( screen == NULL ) {
fprintf(stderr,"Couldn't set %dx%dx%d video mode: %s\n",
image->w, image->h, depth, SDL_GetError());
continue;
}
/* Set the palette, if one exists */
if ( image->format->palette ) {
SDL_SetColors(screen, image->format->palette->colors,
0, image->format->palette->ncolors);
}
/* Draw a background pattern if the surface has transparency */
if(image->flags & (SDL_SRCALPHA | SDL_SRCCOLORKEY))
draw_background(screen);
/* Display the image */
SDL_BlitSurface(image, NULL, screen, NULL);
SDL_UpdateRect(screen, 0, 0, 0, 0);
done = 0;
while ( ! done ) {
if ( SDL_PollEvent(&event) ) {
switch (event.type) {
case SDL_KEYUP:
switch (event.key.keysym.sym) {
case SDLK_LEFT:
if ( i > 1 ) {
i -= 2;
done = 1;
}
break;
case SDLK_RIGHT:
if ( argv[i+1] ) {
done = 1;
}
break;
case SDLK_ESCAPE:
case SDLK_q:
argv[i+1] = NULL;
/* Drop through to done */
case SDLK_SPACE:
case SDLK_TAB:
done = 1;
break;
default:
break;
}
break;
case SDL_MOUSEBUTTONDOWN:
done = 1;
break;
case SDL_QUIT:
argv[i+1] = NULL;
done = 1;
break;
default:
break;
}
} else {
SDL_Delay(10);
}
}
SDL_FreeSurface(image);
}
/* We're done! */
SDL_Quit();
return(0);
}
bool Image::isJPG(SDL_RWops *src)
{
return IMG_isJPG(src);
}