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draw_bmp: always allocate cache

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Allocate it even if it's needed. The actually done work is almost the
same, except that the code is a bit simpler. May need more memory at
once for RGB subs that use more than one part, which is rare.
This commit is contained in:
wm4 2012-12-25 15:11:07 +01:00
parent 9f27ebbe63
commit c652e3f6b1
1 changed files with 25 additions and 26 deletions
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51
sub/draw_bmp.c
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@ -55,7 +55,7 @@ struct mp_draw_sub_cache
struct part *parts[MAX_OSD_PARTS];
};
static struct part *get_cache(struct mp_draw_sub_cache **cache,
static struct part *get_cache(struct mp_draw_sub_cache *cache,
struct sub_bitmaps *sbs, struct mp_image *format);
static bool get_sub_area(struct mp_rect bb, struct mp_image *temp,
struct sub_bitmap *sb, struct mp_image *out_area,
@ -235,11 +235,12 @@ static void scale_sb_rgba(struct sub_bitmap *sb, struct mp_image *dst_format,
*out_sba = sba;
}
static void draw_rgba(struct mp_draw_sub_cache **cache, struct mp_rect bb,
static void draw_rgba(struct mp_draw_sub_cache *cache, struct mp_rect bb,
struct mp_image *temp, int bits,
struct sub_bitmaps *sbs)
{
struct part *part = get_cache(cache, sbs, temp);
assert(part);
for (int i = 0; i < sbs->num_parts; ++i) {
struct sub_bitmap *sb = &sbs->parts[i];
@ -252,12 +253,8 @@ static void draw_rgba(struct mp_draw_sub_cache **cache, struct mp_rect bb,
if (!get_sub_area(bb, temp, sb, &dst, &src_x, &src_y))
continue;
struct mp_image *sbi = NULL;
struct mp_image *sba = NULL;
if (part) {
sbi = part->imgs[i].i;
sba = part->imgs[i].a;
}
struct mp_image *sbi = part->imgs[i].i;
struct mp_image *sba = part->imgs[i].a;
if (!(sbi && sba))
scale_sb_rgba(sb, temp, &sbi, &sba);
@ -270,17 +267,12 @@ static void draw_rgba(struct mp_draw_sub_cache **cache, struct mp_rect bb,
alpha_p, sba->stride[0], dst.w, dst.h, bytes);
}
if (part) {
part->imgs[i].i = talloc_steal(part, sbi);
part->imgs[i].a = talloc_steal(part, sba);
} else {
talloc_free(sbi);
talloc_free(sba);
}
part->imgs[i].i = talloc_steal(part, sbi);
part->imgs[i].a = talloc_steal(part, sba);
}
}
static void draw_ass(struct mp_draw_sub_cache **cache, struct mp_rect bb,
static void draw_ass(struct mp_draw_sub_cache *cache, struct mp_rect bb,
struct mp_image *temp, int bits, struct sub_bitmaps *sbs)
{
struct mp_csp_params cspar = MP_CSP_PARAMS_DEFAULTS;
@ -394,17 +386,14 @@ static void get_closest_y444_format(int imgfmt, int *out_format, int *out_bits)
*out_bits = 8;
}
static struct part *get_cache(struct mp_draw_sub_cache **cache,
static struct part *get_cache(struct mp_draw_sub_cache *cache,
struct sub_bitmaps *sbs, struct mp_image *format)
{
if (cache && !*cache)
*cache = talloc_zero(NULL, struct mp_draw_sub_cache);
struct part *part = NULL;
bool use_cache = sbs->format == SUBBITMAP_RGBA;
if (cache && use_cache) {
part = (*cache)->parts[sbs->render_index];
if (use_cache) {
part = cache->parts[sbs->render_index];
if (part) {
if (part->bitmap_pos_id != sbs->bitmap_pos_id
|| part->imgfmt != format->imgfmt
@ -416,7 +405,7 @@ static struct part *get_cache(struct mp_draw_sub_cache **cache,
}
}
if (!part) {
part = talloc(*cache, struct part);
part = talloc(cache, struct part);
*part = (struct part) {
.bitmap_pos_id = sbs->bitmap_pos_id,
.num_imgs = sbs->num_parts,
@ -428,7 +417,7 @@ static struct part *get_cache(struct mp_draw_sub_cache **cache,
part->num_imgs);
}
assert(part->num_imgs == sbs->num_parts);
(*cache)->parts[sbs->render_index] = part;
cache->parts[sbs->render_index] = part;
}
return part;
@ -464,6 +453,10 @@ void mp_draw_sub_bitmaps(struct mp_draw_sub_cache **cache, struct mp_image *dst,
if (!mp_sws_supported_format(dst->imgfmt))
return;
struct mp_draw_sub_cache *cache_ = cache ? *cache : NULL;
if (!cache_)
cache_ = talloc_zero(NULL, struct mp_draw_sub_cache);
int format, bits;
get_closest_y444_format(dst->imgfmt, &format, &bits);
@ -491,15 +484,21 @@ void mp_draw_sub_bitmaps(struct mp_draw_sub_cache **cache, struct mp_image *dst,
}
if (sbs->format == SUBBITMAP_RGBA) {
draw_rgba(cache, bb, temp, bits, sbs);
draw_rgba(cache_, bb, temp, bits, sbs);
} else if (sbs->format == SUBBITMAP_LIBASS) {
draw_ass(cache, bb, temp, bits, sbs);
draw_ass(cache_, bb, temp, bits, sbs);
}
if (temp != &dst_region) {
mp_image_swscale(&dst_region, temp, SWS_AREA); // chroma down
talloc_free(temp);
}
if (cache) {
*cache = cache_;
} else {
talloc_free(cache_);
}
}
// vim: ts=4 sw=4 et tw=80