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mpv/sub/draw_bmp.h
Dudemanguy 9db818279a test: integrate unittests with meson
This reworks all of mpv's unit tests so they are compiled as separate
executables (optional) and run via meson test. Because most of the tests
are dependant on mpv's internals, existing compiled objects are
leveraged to create static libs and used when necessary. As an aside, a
function was moved into video/out/gpu/utils for sanity's sake (otherwise
most of vo would have been needed). As a plus, meson multithreads
running tests automatically and also the output no longer pollutes the
source directory. There are tests that can break due to ffmpeg changes,
so they require a specific minimum libavutil version to be built.
2023-03-02 15:45:27 +00:00

64 lines
2.9 KiB
C

#ifndef MPLAYER_DRAW_BMP_H
#define MPLAYER_DRAW_BMP_H
#include "osd.h"
struct mp_rect;
struct mp_image;
struct mpv_global;
struct mp_draw_sub_cache;
struct mp_draw_sub_cache *mp_draw_sub_alloc(void *ta_parent, struct mpv_global *g);
// Only for use in tests.
struct mp_draw_sub_cache *mp_draw_sub_alloc_test(struct mp_image *dst);
// Render the sub-bitmaps in sbs_list to dst. sbs_list must have been rendered
// for an OSD resolution equivalent to dst's size (UB if not).
// Warning: if dst is a format with alpha, and dst is not set to MP_ALPHA_PREMUL
// (not done by default), this will be extremely slow.
// Warning: the caller is responsible for ensuring that dst is writable.
// cache: allocated instance; caches non-changing OSD parts etc.
// dst: image to draw to
// sbs_list: source sub-bitmaps
// returns: success
bool mp_draw_sub_bitmaps(struct mp_draw_sub_cache *cache, struct mp_image *dst,
struct sub_bitmap_list *sbs_list);
char *mp_draw_sub_get_dbg_info(struct mp_draw_sub_cache *c);
// Return a RGBA overlay with subtitles. The returned image uses IMGFMT_BGRA and
// premultiplied alpha, and the size specified by sbs_list.w/h.
// This can return a list of active (act_) and modified (mod_) rectangles.
// Active rectangles are regions that contain visible OSD pixels. Modified
// rectangles are regions that were changed since the last call. This function
// always makes the act region a subset of the mod region. Rectangles within a
// list never overlap with rectangles within the same list.
// If num_mod_rcs==0 is returned, this function guarantees that the act region
// did not change since the last call.
// If the user-provided lists are too small (max_*_rcs too small), multiple
// rectangles are merged until they fit in the list.
// You can pass max_act_rcs=0, which implies you render the whole overlay.
// cache: allocated instance; keeps track of changed regions
// sbs_list: source sub-bitmaps
// act_rcs: caller allocated list of non-transparent rectangles
// max_act_rcs: number of allocated items in act_rcs
// num_act_rcs: set to the number of valid items in act_rcs
// mod_rcs, max_mod_rcs, num_mod_rcs: modified rectangles
// returns: internal OSD overlay owned by cache, NULL on error
// read only, valid until the next call on cache
struct mp_image *mp_draw_sub_overlay(struct mp_draw_sub_cache *cache,
struct sub_bitmap_list *sbs_list,
struct mp_rect *act_rcs,
int max_act_rcs,
int *num_act_rcs,
struct mp_rect *mod_rcs,
int max_mod_rcs,
int *num_mod_rcs);
extern const bool mp_draw_sub_formats[SUBBITMAP_COUNT];
#endif /* MPLAYER_DRAW_BMP_H */
// vim: ts=4 sw=4 et tw=80