DIM_UINT dimPngReadImageProc ( TDimFormatHandle *fmtHndl, DIM_UINT page )
{
if (fmtHndl == NULL) return 1;
if (fmtHndl->stream == NULL) return 1;
fmtHndl->pageNumber = page;
return read_png_image( fmtHndl );
}
/*
* Creates and returns a texture based on a bundled image filename
*/
GLuint read_png_texture(const char *name, bool pixel_texture) {
char *data = NULL;
int width = 0;
int height= 0;
bool success = read_png_image(name,&data,&width,&height);
if (!success)
return 0;
GLuint texture_object = create_texture(data, width, height, pixel_texture);
delete data;
return texture_object;
}
image_t * read_image(image_t * image)
{
FILE * infile;
if ((infile = fopen(image->path, "rb")) == NULL) {
fprintf(stderr, "can't open %s\n", image->path);
return NULL;
}
unsigned char sig[8];
fread(sig, 1, 8, infile);
if (png_sig_cmp(sig, 0, 8) == 0) {
image = read_png_image(image, infile);
} else if (sig[0] == 0xFF && sig[1] == 0xd8) {
fseek(infile, 0, 0);
image = read_jpeg_image(image, infile);
} else {
printf("%s is not a jpeg file\n", image->path);
return NULL;
}
fclose(infile);
return image;
}
