mirror of
https://github.com/mpv-player/mpv
synced 2024-12-24 15:52:25 +00:00
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
#ifndef MPLAYER_PACK_RECTANGLES_H
|
|
#define MPLAYER_PACK_RECTANGLES_H
|
|
|
|
struct pos {
|
|
int x;
|
|
int y;
|
|
};
|
|
|
|
struct bitmap_packer {
|
|
int w;
|
|
int h;
|
|
int w_max;
|
|
int h_max;
|
|
int padding;
|
|
int count;
|
|
struct pos *in;
|
|
struct pos *result;
|
|
int used_width;
|
|
int used_height;
|
|
|
|
// internal
|
|
int *scratch;
|
|
int asize;
|
|
};
|
|
|
|
struct sub_bitmaps;
|
|
|
|
// Clear all internal state. Leave the following fields: w_max, h_max
|
|
void packer_reset(struct bitmap_packer *packer);
|
|
|
|
// Get the bounding box used for bitmap data (including padding).
|
|
// The bounding box doesn't exceed (0,0)-(packer->w,packer->h).
|
|
void packer_get_bb(struct bitmap_packer *packer, struct pos out_bb[2]);
|
|
|
|
/* Reallocate packer->in for at least to desired number of items.
|
|
* Also sets packer->count to the same value.
|
|
*/
|
|
void packer_set_size(struct bitmap_packer *packer, int size);
|
|
|
|
/* To use this, set packer->count to number of rectangles, w_max and h_max
|
|
* to maximum output rectangle size, and w and h to start size (may be 0).
|
|
* Write input sizes in packer->in.
|
|
* Resulting packing will be written in packer->result.
|
|
* w and h will be increased if necessary for successful packing.
|
|
* There is a strong guarantee that w and h will be powers of 2 (or set to 0).
|
|
* Return value is -1 if packing failed because w and h were set to max
|
|
* values but that wasn't enough, 1 if w or h was increased, and 0 otherwise.
|
|
*/
|
|
int packer_pack(struct bitmap_packer *packer);
|
|
|
|
#endif
|