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/*
* Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
*
* GPL v2
*/
#include <common.h>
#include <fb.h>
#include <gui/image_renderer.h>
#include <errno.h>
#include <fs.h>
#include <malloc.h>
#include <libfile.h>
static LIST_HEAD(image_renderers);
static struct image_renderer *get_renderer(void* buf, size_t bufsize)
{
struct image_renderer *ir;
enum filetype type = file_detect_type(buf, bufsize);
list_for_each_entry(ir, &image_renderers, list) {
if (ir->type == type)
return ir;
}
eprintf("No renderer found for filetype %s\n", file_type_to_string(type));
return NULL;
}
struct image *image_renderer_open(const char* file)
{
void *data;
size_t size;
struct image_renderer *ir;
struct image *img;
int ret;
ret = read_file_2(file, &size, &data, FILESIZE_MAX);
if (ret) {
printf("unable to read %s: %s\n", file, strerror(-ret));
return ERR_PTR(ret);
}
ir = get_renderer(data, size);
if (!ir) {
ret = -ENOENT;
goto out;
}
img = ir->open(data, size);
if (IS_ERR(img)) {
ret = PTR_ERR(img);
goto out;
}
img->ir = ir;
if (!ir->keep_file_data)
free(data);
return img;
out:
free(data);
return ERR_PTR(ret);
}
void image_renderer_close(struct image *img)
{
if (!img)
return;
img->ir->close(img);
free(img);
}
int image_renderer_image(struct screen *sc, struct surface *s, struct image *img)
{
return img->ir->renderer(sc, s, img);
}
int image_renderer_register(struct image_renderer *ir)
{
if (!ir || !ir->type || !ir->renderer || !ir->open || !ir->close)
return -EIO;
list_add_tail(&ir->list, &image_renderers);
return 0;
}
void image_renderer_unregister(struct image_renderer *ir)
{
if (!ir)
return;
list_del(&ir->list);
}
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