97 lines
1.6 KiB
C
97 lines
1.6 KiB
C
/*
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* Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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*
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* GPL v2
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*/
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#include <common.h>
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#include <fb.h>
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#include <gui/image_renderer.h>
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#include <errno.h>
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#include <fs.h>
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#include <malloc.h>
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static LIST_HEAD(image_renderers);
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static struct image_renderer *get_renderer(void* buf)
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{
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struct image_renderer *ir;
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enum filetype type = file_detect_type(buf);
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list_for_each_entry(ir, &image_renderers, list) {
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if (ir->type == type)
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return ir;
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}
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return NULL;
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}
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struct image *image_renderer_open(const char* file)
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{
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void *data;
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size_t size;
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struct image_renderer *ir;
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struct image *img;
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int ret;
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data = read_file(file, &size);
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if (!data) {
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printf("unable to read %s\n", file);
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return ERR_PTR(-ENOMEM);
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}
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ir = get_renderer(data);
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if (!ir) {
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ret = -ENOENT;
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goto out;
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}
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img = ir->open(data, size);
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if (IS_ERR(img)) {
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ret = PTR_ERR(img);
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goto out;
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}
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img->ir = ir;
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if (!ir->keep_file_data)
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free(data);
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return img;
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out:
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free(data);
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return ERR_PTR(ret);
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}
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void image_renderer_close(struct image *img)
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{
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if (!img)
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return;
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img->ir->close(img);
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free(img);
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}
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int image_renderer_image(struct fb_info *info, struct image *img, void* fb,
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int startx, int starty, void* offscreenbuf)
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{
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return img->ir->renderer(info, img, fb, startx, starty, offscreenbuf);
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}
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int image_renderer_register(struct image_renderer *ir)
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{
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if (!ir || !ir->type || !ir->renderer || !ir->open || !ir->close)
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return -EIO;
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list_add_tail(&ir->list, &image_renderers);
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return 0;
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}
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void image_renderer_unregister(struct image_renderer *ir)
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{
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if (!ir)
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return;
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list_del(&ir->list);
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}
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