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/*
* Copyright (C) 2013 Patrick "P. J." McDermott
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <SDL.h>
#include <SDL_image.h>
#include <config.h>
#include "../logging.h"
#include "image.h"
#include "resource.h"
struct resource_table img_res;
struct image *
img_png_get(const char *path)
{
SDL_RWops *rwops;
struct image *img;
img = (struct image *) resource_get(&img_res, path);
if (img != NULL) {
resource_use((struct resource *) img);
return img;
}
img = resource_alloc(path, sizeof(*img));
rwops = SDL_RWFromFile(path, "rb");
img->image = IMG_LoadPNG_RW(rwops);
if (!img->image) {
err(1, "Failed to load image \"%s\" (%s)",
path, IMG_GetError());
}
#ifdef DEBUG_PALETTES
{
SDL_Palette *pal;
int col_i;
debug("Palette for image \"%s\"\n", path);
pal = img->image->format->palette;
for (col_i = 0; col_i < pal->ncolors; ++col_i) {
debug(" Color %3.3d: 0x%2.2x%2.2x%2.2x",
col_i,
pal->colors[col_i].r,
pal->colors[col_i].g,
pal->colors[col_i].b);
}
}
#endif
resource_use((struct resource *) img);
resource_add(&img_res, path, (struct resource *) img);
return img;
}
void
img_png_free(struct image *image)
{
SDL_Surface *data;
if (image == NULL) {
return;
}
data = image->image;
if (resource_free(&img_res, (struct resource *) image)) {
SDL_FreeSurface(data);
}
}
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