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mirror of https://github.com/mpv-player/mpv.git synced 2024-09-20 12:02:23 +02:00
mpv/sub/img_convert.c
wm4 4873b32c59 Rename directories, move files (step 2 of 2)
Finish renaming directories and moving files. Adjust all include
statements to make the previous commit compile.

The two commits are separate, because git is bad at tracking renames
and content changes at the same time.

Also take this as an opportunity to remove the separation between
"common" and "mplayer" sources in the Makefile. ("common" used to be
shared between mplayer and mencoder.)
2012-11-12 20:08:18 +01:00

89 lines
2.6 KiB
C

/*
* This file is part of mplayer.
*
* mplayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* mplayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mplayer. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <assert.h>
#include <libavutil/mem.h>
#include <libavutil/common.h>
#include "talloc.h"
#include "img_convert.h"
#include "sub.h"
#include "video/img_format.h"
#include "video/mp_image.h"
#include "video/sws_utils.h"
struct osd_conv_cache {
struct sub_bitmap part;
struct sub_bitmap *parts;
};
struct osd_conv_cache *osd_conv_cache_new(void)
{
return talloc_zero(NULL, struct osd_conv_cache);
}
static void rgba_to_premultiplied_rgba(uint32_t *colors, size_t count)
{
for (int n = 0; n < count; n++) {
uint32_t c = colors[n];
int b = c & 0xFF;
int g = (c >> 8) & 0xFF;
int r = (c >> 16) & 0xFF;
int a = (c >> 24) & 0xFF;
b = b * a / 255;
g = g * a / 255;
r = r * a / 255;
colors[n] = b | (g << 8) | (r << 16) | (a << 24);
}
}
bool osd_conv_idx_to_rgba(struct osd_conv_cache *c, struct sub_bitmaps *imgs)
{
struct sub_bitmaps src = *imgs;
if (src.format != SUBBITMAP_INDEXED)
return false;
imgs->format = SUBBITMAP_RGBA;
talloc_free(c->parts);
imgs->parts = c->parts = talloc_array(c, struct sub_bitmap, src.num_parts);
for (int n = 0; n < src.num_parts; n++) {
struct sub_bitmap *d = &imgs->parts[n];
struct sub_bitmap *s = &src.parts[n];
struct osd_bmp_indexed sb = *(struct osd_bmp_indexed *)s->bitmap;
rgba_to_premultiplied_rgba(sb.palette, 256);
*d = *s;
struct mp_image *image = alloc_mpi(s->w, s->h, IMGFMT_BGRA);
talloc_steal(c->parts, image);
d->stride = image->stride[0];
d->bitmap = image->planes[0];
for (int y = 0; y < s->h; y++) {
uint8_t *inbmp = sb.bitmap + y * s->stride;
uint32_t *outbmp = (uint32_t*)((uint8_t*)d->bitmap + y * d->stride);
for (int x = 0; x < s->w; x++)
*outbmp++ = sb.palette[*inbmp++];
}
}
return true;
}