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sub: add helper to draw sub-bitmaps into an image 

Merged by wm4 from commits 93978f17b76d..13211ef5fc20. Changed copyright
header in draw_bmp.c to "mpv", and removed the one in draw_bmp.h.
This commit is contained in:
Rudolf Polzer 2012-10-24 19:11:42 +02:00 committed by wm4
parent 1282f9d79e
commit aa1047a35a
7 changed files with 684 additions and 0 deletions
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1
Makefile
View File

@ -217,6 +217,7 @@ SRCS_COMMON = asxparser.c \
sub/spudec.c \
sub/sub.c \
sub/img_convert.c \
sub/draw_bmp.c \
sub/subassconvert.c \
sub/subreader.c \
sub/vobsub.c \

24
libmpcodecs/sws_utils.c
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@ -131,4 +131,28 @@ struct SwsContext *sws_getContextFromCmdLine_hq(int srcW, int srcH,
SWS_ACCURATE_RND | SWS_BITEXACT);
}
void mp_image_swscale(struct mp_image *dst,
const struct mp_image *src,
struct mp_csp_details *csp,
int my_sws_flags)
{
enum PixelFormat dfmt, sfmt;
dfmt = imgfmt2pixfmt(dst->imgfmt);
sfmt = imgfmt2pixfmt(src->imgfmt);
if (src->imgfmt == IMGFMT_RGB8 || src->imgfmt == IMGFMT_BGR8)
sfmt = PIX_FMT_PAL8;
struct SwsContext *sws =
sws_getContext(src->w, src->h, sfmt, dst->w, dst->h, dfmt,
my_sws_flags, NULL, NULL, NULL);
struct mp_csp_details mycsp = MP_CSP_DETAILS_DEFAULTS;
if (csp)
mycsp = *csp;
mp_sws_set_colorspace(sws, &mycsp);
sws_scale(sws, (const unsigned char *const *) src->planes, src->stride,
0, src->h,
dst->planes, dst->stride);
sws_freeContext(sws);
}
// vim: ts=4 sw=4 et tw=80

3
libmpcodecs/sws_utils.h
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@ -22,6 +22,9 @@ struct SwsContext *sws_getContextFromCmdLine_hq(int srcW, int srcH,
int dstFormat);
int mp_sws_set_colorspace(struct SwsContext *sws, struct mp_csp_details *csp);
void mp_image_swscale(struct mp_image *dst, const struct mp_image *src,
struct mp_csp_details *csp, int my_sws_flags);
#endif /* MP_SWS_UTILS_H */
// vim: ts=4 sw=4 et tw=80

54
libvo/csputils.c
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@ -29,6 +29,7 @@
#include <math.h>
#include <assert.h>
#include <libavutil/common.h>
#include "mp_msg.h"
#include "csputils.h"
@ -317,3 +318,56 @@ int mp_csp_equalizer_set(struct mp_csp_equalizer *eq, const char *property,
return 1;
}
void mp_invert_yuv2rgb(float out[3][4], float in[3][4])
{
// this is from the DarkPlaces engine, reduces to 3x3. Original code
// released under GPL2 or any later version.
float det;
// this seems to help gcc's common subexpression elimination, and also makes the code look nicer
float m00 = in[0][0], m01 = in[0][1], m02 = in[0][2], m03 = in[0][3],
m10 = in[1][0], m11 = in[1][1], m12 = in[1][2], m13 = in[1][3],
m20 = in[2][0], m21 = in[2][1], m22 = in[2][2], m23 = in[2][3];
// calculate the adjoint
out[0][0] = (m11 * m22 - m21 * m12);
out[0][1] = -(m01 * m22 - m21 * m02);
out[0][2] = (m01 * m12 - m11 * m02);
out[1][0] = -(m10 * m22 - m20 * m12);
out[1][1] = (m00 * m22 - m20 * m02);
out[1][2] = -(m00 * m12 - m10 * m02);
out[2][0] = (m10 * m21 - m20 * m11);
out[2][1] = -(m00 * m21 - m20 * m01);
out[2][2] = (m00 * m11 - m10 * m01);
// calculate the determinant (as inverse == 1/det * adjoint, adjoint * m == identity * det, so this calculates the det)
det = m00 * out[0][0] + m10 * out[0][1] + m20 * out[0][2];
if (det == 0.0f) {
//mp_msg(MSGT_VO, MSGL_ERR, "cannot invert yuv2rgb matrix\n");
return;
}
// multiplications are faster than divisions, usually
det = 1.0f / det;
// manually unrolled loop to multiply all matrix elements by 1/det
out[0][0] *= det;
out[0][1] *= det;
out[0][2] *= det;
out[1][0] *= det;
out[1][1] *= det;
out[1][2] *= det;
out[2][0] *= det;
out[2][1] *= det;
out[2][2] *= det;
// fix the constant coefficient
// rgb = M * yuv + C
// M^-1 * rgb = yuv + M^-1 * C
// yuv = M^-1 * rgb - M^-1 * C
// ^^^^^^^^^^
out[0][3] = -(out[0][0] * m03 + out[0][1] * m13 + out[0][2] * m23);
out[1][3] = -(out[1][0] * m03 + out[1][1] * m13 + out[1][2] * m23);
out[2][3] = -(out[2][0] * m03 + out[2][1] * m13 + out[2][2] * m23);
}

10
libvo/csputils.h
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@ -133,4 +133,14 @@ void mp_gen_gamma_map(unsigned char *map, int size, float gamma);
void mp_get_yuv2rgb_coeffs(struct mp_csp_params *params, float yuv2rgb[3][4]);
void mp_gen_yuv2rgb_map(struct mp_csp_params *params, uint8_t *map, int size);
#define MP_MAP_YUV2RGB_COLOR(m, y, u, v, scale, c) ((m)[c][0] * (y) + \
(m)[c][1] * (u) + \
(m)[c][2] * (v) + \
(m)[c][3] * (scale))
#define MP_MAP_RGB2YUV_COLOR(minv, r, g, b, scale, c) ((minv)[c][0] * (r) + \
(minv)[c][1] * (g) + \
(minv)[c][2] * (b) + \
(minv)[c][3] * (scale))
void mp_invert_yuv2rgb(float out[3][4], float in[3][4]);
#endif /* MPLAYER_CSPUTILS_H */

580
sub/draw_bmp.c Normal file
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@ -0,0 +1,580 @@
/*
* This file is part of mpv.
*
* mpv 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.
*
* mpv 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 mpv; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "sub/draw_bmp.h"
#include <stdbool.h>
#include <math.h>
#include "sub/sub.h"
#include "libmpcodecs/mp_image.h"
#include "libmpcodecs/sws_utils.h"
#include "libmpcodecs/img_format.h"
#include "libvo/csputils.h"
#define ACCURATE
#define CONDITIONAL
#define CONDITIONAL2
static void blend_const16_alpha(uint8_t *dst,
ssize_t dstRowStride,
uint16_t srcp,
const uint8_t *srca,
ssize_t srcaRowStride,
uint8_t srcamul, int rows,
int cols)
{
int i, j;
#ifdef CONDITIONAL
if (!srcamul)
return;
#endif
for (i = 0; i < rows; ++i) {
uint16_t *dstr = (uint16_t *) (dst + dstRowStride * i);
const uint8_t *srcar = srca + srcaRowStride * i;
for (j = 0; j < cols; ++j) {
uint32_t srcap = srcar[j];
// 32bit to force the math ops to operate on 32 bit
#ifdef CONDITIONAL
if (!srcap)
continue;
#endif
#ifdef CONDITIONAL2
if (srcap == 255 && srcamul == 255) {
dstr[j] = srcp;
continue;
}
#endif
uint16_t dstp = dstr[j];
srcap *= srcamul; // now 0..65025
uint16_t outp =
(srcp * srcap + dstp * (65025 - srcap) + 32512) / 65025;
dstr[j] = outp;
}
}
}
static void blend_src16_alpha(uint8_t *dst,
ssize_t dstRowStride,
const uint8_t *src,
ssize_t srcRowStride,
const uint8_t *srca,
ssize_t srcaRowStride,
int rows,
int cols)
{
int i, j;
for (i = 0; i < rows; ++i) {
uint16_t *dstr = (uint16_t *) (dst + dstRowStride * i);
const uint16_t *srcr = (const uint16_t *) (src + srcRowStride * i);
const uint8_t *srcar = srca + srcaRowStride * i;
for (j = 0; j < cols; ++j) {
uint32_t srcap = srcar[j];
// 32bit to force the math ops to operate on 32 bit
#ifdef CONDITIONAL
if (!srcap)
continue;
#endif
uint16_t srcp = srcr[j];
#ifdef CONDITIONAL2
if (srcap == 255) {
dstr[j] = srcp;
continue;
}
#endif
uint16_t dstp = dstr[j];
uint16_t outp =
(srcp * srcap + dstp * (255 - srcap) + 127) / 255;
dstr[j] = outp;
}
}
}
static void blend_const8_alpha(uint8_t *dst,
ssize_t dstRowStride,
uint16_t srcp,
const uint8_t *srca,
ssize_t srcaRowStride,
uint8_t srcamul, int rows,
int cols)
{
int i, j;
#ifdef CONDITIONAL
if (!srcamul)
return;
#endif
for (i = 0; i < rows; ++i) {
uint8_t *dstr = dst + dstRowStride * i;
const uint8_t *srcar = srca + srcaRowStride * i;
for (j = 0; j < cols; ++j) {
uint32_t srcap = srcar[j];
// 32bit to force the math ops to operate on 32 bit
#ifdef CONDITIONAL
if (!srcap)
continue;
#endif
#ifdef CONDITIONAL2
if (srcap == 255 && srcamul == 255) {
dstr[j] = srcp;
continue;
}
#endif
uint8_t dstp = dstr[j];
#ifdef ACCURATE
srcap *= srcamul; // now 0..65025
uint8_t outp =
(srcp * srcap + dstp * (65025 - srcap) + 32512) / 65025;
dstr[j] = outp;
#else
srcap = (srcap * srcamul + 255) >> 8;
uint8_t outp =
(srcp * srcap + dstp * (255 - srcap) + 255) >> 8;
dstr[j] = outp;
#endif
}
}
}
static void blend_src8_alpha(uint8_t *dst,
ssize_t dstRowStride,
const uint8_t *src,
ssize_t srcRowStride,
const uint8_t *srca,
ssize_t srcaRowStride,
int rows,
int cols)
{
int i, j;
for (i = 0; i < rows; ++i) {
uint8_t *dstr = dst + dstRowStride * i;
const uint8_t *srcr = src + srcRowStride * i;
const uint8_t *srcar = srca + srcaRowStride * i;
for (j = 0; j < cols; ++j) {
uint16_t srcap = srcar[j];
// 16bit to force the math ops to operate on 16 bit
#ifdef CONDITIONAL
if (!srcap)
continue;
#endif
uint8_t srcp = srcr[j];
#ifdef CONDITIONAL2
if (srcap == 255) {
dstr[j] = srcp;
continue;
}
#endif
uint8_t dstp = dstr[j];
#ifdef ACCURATE
uint8_t outp =
(srcp * srcap + dstp * (255 - srcap) + 127) / 255;
#else
uint8_t outp =
(srcp * srcap + dstp * (255 - srcap) + 255) >> 8;
#endif
dstr[j] = outp;
}
}
}
static void blend_src_alpha(uint8_t *dst, ssize_t dstRowStride,
const uint8_t *src, ssize_t srcRowStride,
const uint8_t *srca, ssize_t srcaRowStride,
int rows, int cols, int bytes)
{
if (bytes == 2) {
blend_src16_alpha(dst, dstRowStride, src,
srcRowStride, srca,
srcaRowStride, rows, cols);
} else if (bytes == 1) {
blend_src8_alpha(dst, dstRowStride, src,
srcRowStride, srca,
srcaRowStride, rows, cols);
}
}
static void blend_const_alpha(uint8_t *dst, ssize_t dstRowStride,
uint16_t srcp,
const uint8_t *srca, ssize_t srcaRowStride,
uint8_t srcamul,
int rows, int cols, int bytes)
{
if (bytes == 2) {
blend_const16_alpha(dst, dstRowStride, srcp,
srca, srcaRowStride,
srcamul, rows,
cols);
} else if (bytes == 1) {
blend_const8_alpha(dst, dstRowStride, srcp,
srca, srcaRowStride, srcamul,
rows,
cols);
}
}
static inline int min(int x, int y)
{
if (x < y)
return x;
else
return y;
}
static void unpremultiply_and_split_bgra(mp_image_t *img, mp_image_t *alpha)
{
int x, y;
for (y = 0; y < img->h; ++y) {
unsigned char *irow = &img->planes[0][img->stride[0] * y];
unsigned char *arow = &alpha->planes[0][alpha->stride[0] * y];
for (x = 0; x < img->w; ++x) {
unsigned char aval = irow[4 * x + 3];
// multiplied = separate * alpha / 255
// separate = rint(multiplied * 255 / alpha)
// = floor(multiplied * 255 / alpha + 0.5)
// = floor((multiplied * 255 + 0.5 * alpha) / alpha)
// = floor((multiplied * 255 + floor(0.5 * alpha)) / alpha)
int div = (int) aval;
int add = div / 2;
if (aval) {
irow[4 * x + 0] = min(255, (irow[4 * x + 0] * 255 + add) / div);
irow[4 * x + 1] = min(255, (irow[4 * x + 1] * 255 + add) / div);
irow[4 * x + 2] = min(255, (irow[4 * x + 2] * 255 + add) / div);
}
arow[x] = aval;
}
}
}
static bool sub_bitmap_to_mp_images(struct mp_image **sbi, int *color_yuv,
int *color_a, struct mp_image **sba,
struct sub_bitmap *sb,
int format, struct mp_csp_details *csp,
float rgb2yuv[3][4], int imgfmt, int bits)
{
*sbi = NULL;
*sba = NULL;
if (format == SUBBITMAP_RGBA && sb->w >= 8) {
// >= 8 because of libswscale madness
// swscale the bitmap from w*h to dw*dh, changing BGRA8 into YUV444P16
// and make a scaled copy of A8
mp_image_t *sbisrc = new_mp_image(sb->w, sb->h);
mp_image_setfmt(sbisrc, IMGFMT_BGRA);
sbisrc->planes[0] = sb->bitmap;
sbisrc->stride[0] = sb->stride;
mp_image_t *sbisrc2 = alloc_mpi(sb->dw, sb->dh, IMGFMT_BGRA);
mp_image_swscale(sbisrc2, sbisrc, csp, SWS_BILINEAR);
// sbisrc2 now is the original image in premultiplied alpha, but
// properly scaled...
// now, un-premultiply so we can work in YUV color space, also extract
// alpha
*sba = alloc_mpi(sb->dw, sb->dh, IMGFMT_Y8);
unpremultiply_and_split_bgra(sbisrc2, *sba);
// convert to the output format
*sbi = alloc_mpi(sb->dw, sb->dh, imgfmt);
mp_image_swscale(*sbi, sbisrc2, csp, SWS_BILINEAR);
free_mp_image(sbisrc);
free_mp_image(sbisrc2);
color_yuv[0] = 255;
color_yuv[1] = 128;
color_yuv[2] = 128;
*color_a = 255;
return true;
} else if (format == SUBBITMAP_LIBASS &&
sb->w == sb->dw && sb->h == sb->dh) {
// swscale alpha only
*sba = new_mp_image(sb->w, sb->h);
mp_image_setfmt(*sba, IMGFMT_Y8);
(*sba)->planes[0] = sb->bitmap;
(*sba)->stride[0] = sb->stride;
int r = (sb->libass.color >> 24) & 0xFF;
int g = (sb->libass.color >> 16) & 0xFF;
int b = (sb->libass.color >> 8) & 0xFF;
int a = sb->libass.color & 0xFF;
color_yuv[0] =
rint(MP_MAP_RGB2YUV_COLOR(rgb2yuv, r, g, b, 255, 0)
* (1 << (bits - 8)));
color_yuv[1] =
rint(MP_MAP_RGB2YUV_COLOR(rgb2yuv, r, g, b, 255, 1)
* (1 << (bits - 8)));
color_yuv[2] =
rint(MP_MAP_RGB2YUV_COLOR(rgb2yuv, r, g, b, 255, 2)
* (1 << (bits - 8)));
*color_a = 255 - a;
// NOTE: these overflows can actually happen (when subtitles use color
// 0,0,0 while output levels only allows 16,16,16 upwards...)
if (color_yuv[0] < 0)
color_yuv[0] = 0;
if (color_yuv[1] < 0)
color_yuv[1] = 0;
if (color_yuv[2] < 0)
color_yuv[2] = 0;
if (*color_a < 0)
*color_a = 0;
if (color_yuv[0] > ((1 << bits) - 1))
color_yuv[0] = ((1 << bits) - 1);
if (color_yuv[1] > ((1 << bits) - 1))
color_yuv[1] = ((1 << bits) - 1);
if (color_yuv[2] > ((1 << bits) - 1))
color_yuv[2] = ((1 << bits) - 1);
if (*color_a > 255)
*color_a = 255;
return true;
} else
return false;
}
static void mp_image_crop(struct mp_image *img, int x, int y, int w, int h)
{
int p;
for (p = 0; p < img->num_planes; ++p) {
int bits = MP_IMAGE_BITS_PER_PIXEL_ON_PLANE(img, p);
img->planes[p] +=
(y >> (p ? img->chroma_y_shift : 0)) * img->stride[p] +
((x >> (p ? img->chroma_x_shift : 0)) * bits) / 8;
}
img->w = w;
img->h = h;
}
static bool clip_to_bounds(int *x, int *y, int *w, int *h,
int bx, int by, int bw, int bh)
{
if (*x < bx) {
*w += *x - bx;
*x = bx;
}
if (*y < 0) {
*h += *y - by;
*y = by;
}
if (*x + *w > bx + bw)
*w = bx + bw - *x;
if (*y + *h > by + bh)
*h = by + bh - *y;
if (*w <= 0 || *h <= 0)
return false; // nothing left
return true;
}
static void get_swscale_requirements(int *sx, int *sy,
const struct mp_image *img)
{
int p;
if (img->chroma_x_shift == 31)
*sx = 1;
else
*sx = (1 << img->chroma_x_shift);
if (img->chroma_y_shift == 31)
*sy = 1;
else
*sy = (1 << img->chroma_y_shift);
for (p = 0; p < img->num_planes; ++p) {
int bits = MP_IMAGE_BITS_PER_PIXEL_ON_PLANE(img, p);
while (((*sx >> img->chroma_x_shift) * bits) % (SWS_MIN_BYTE_ALIGN * 8))
*sx *= 2;
}
}
static void align_bbox(int *x1, int *y1, int *x2, int *y2, int xstep, int ystep)
{
*x1 -= (*x1 % xstep);
*y1 -= (*y1 % ystep);
*x2 += xstep - 1;
*y2 += ystep - 1;
*x2 -= (*x2 % xstep);
*y2 -= (*y2 % ystep);
}
static bool align_bbox_to_swscale_requirements(int *x1, int *y1,
int *x2, int *y2,
struct mp_image *img)
{
int xstep, ystep;
get_swscale_requirements(&xstep, &ystep, img);
align_bbox(x1, y1, x2, y2, xstep, ystep);
if (*x1 < 0)
*x1 = 0;
if (*y1 < 0)
*y1 = 0;
if (*x2 > img->w)
*x2 = img->w;
if (*y2 > img->h)
*y2 = img->h;
return (*x2 > *x1) && (*y2 > *y1);
}
void mp_draw_sub_bitmaps(struct mp_image *dst, struct sub_bitmaps *sbs,
struct mp_csp_details *csp)
{
int i;
int x1, y1, x2, y2;
int color_yuv[3];
int color_a;
float yuv2rgb[3][4];
float rgb2yuv[3][4];
#ifdef ACCURATE
int format = IMGFMT_444P16;
int bits = 16;
// however, we can try matching 8bit, 9bit, 10bit yuv formats!
if (dst->flags & MP_IMGFLAG_YUV) {
if (mp_get_chroma_shift(dst->imgfmt, NULL, NULL, &bits)) {
switch (bits) {
case 8:
format = IMGFMT_444P;
break;
case 9:
format = IMGFMT_444P9;
break;
case 10:
format = IMGFMT_444P10;
break;
default:
// revert back
bits = 16;
break;
}
}
}
#else
int format = IMGFMT_444P;
int bits = 8;
#endif
int bytes = (bits + 7) / 8;
struct mp_csp_params cspar = {
.colorspace = *csp,
.brightness = 0, .contrast = 1,
.hue = 0, .saturation = 1,
.rgamma = 1, .ggamma = 1, .bgamma = 1,
.texture_bits = 8, .input_bits = 8
};
// prepare YUV/RGB conversion values
mp_get_yuv2rgb_coeffs(&cspar, yuv2rgb);
mp_invert_yuv2rgb(rgb2yuv, yuv2rgb);
//mp_msg(MSGT_VO, MSGL_ERR, "%f %f %f %f // %f %f %f %f // %f %f %f %f\n",
// rgb2yuv[0][0],
// rgb2yuv[0][1],
// rgb2yuv[0][2],
// rgb2yuv[0][3],
// rgb2yuv[1][0],
// rgb2yuv[1][1],
// rgb2yuv[1][2],
// rgb2yuv[1][3],
// rgb2yuv[2][0],
// rgb2yuv[2][1],
// rgb2yuv[2][2],
// rgb2yuv[2][3]);
// calculate bounding range
if (!sub_bitmaps_bb(sbs, &x1, &y1, &x2, &y2))
return;
if (!align_bbox_to_swscale_requirements(&x1, &y1, &x2, &y2, dst))
return; // nothing to do
// convert to a temp image
mp_image_t *temp;
mp_image_t dst_region = *dst;
if (dst->imgfmt == format) {
mp_image_crop(&dst_region, x1, y1, x2 - x1, y2 - y1);
temp = &dst_region;
} else {
mp_image_crop(&dst_region, x1, y1, x2 - x1, y2 - y1);
temp = alloc_mpi(x2 - x1, y2 - y1, format);
mp_image_swscale(temp, &dst_region, csp, SWS_POINT); // chroma up
}
for (i = 0; i < sbs->num_parts; ++i) {
struct sub_bitmap *sb = &sbs->parts[i];
mp_image_t *sbi = NULL;
mp_image_t *sba = NULL;
// cut off areas outside the image
int dst_x = sb->x - x1; // coordinates are relative to the bbox
int dst_y = sb->y - y1; // coordinates are relative to the bbox
int dst_w = sb->dw;
int dst_h = sb->dh;
if (!clip_to_bounds(&dst_x, &dst_y, &dst_w, &dst_h,
0, 0, temp->w, temp->h))
continue;
if (!sub_bitmap_to_mp_images(&sbi, color_yuv, &color_a, &sba, sb,
sbs->format, csp, rgb2yuv, format, bits)) {
mp_msg(MSGT_VO, MSGL_ERR,
"render_sub_bitmap: invalid sub bitmap type\n");
continue;
}
// call blend_alpha 3 times
int p;
int src_x = (dst_x + x1) - sb->x;
int src_y = (dst_y + y1) - sb->y;
unsigned char *alpha_p =
sba->planes[0] + src_y * sba->stride[0] + src_x;
for (p = 0; p < 3; ++p) {
unsigned char *dst_p =
temp->planes[p] + dst_y * temp->stride[p] + dst_x * bytes;
if (sbi) {
unsigned char *src_p =
sbi->planes[p] + src_y * sbi->stride[p] + src_x * bytes;
blend_src_alpha(
dst_p, temp->stride[p],
src_p, sbi->stride[p],
alpha_p, sba->stride[0],
dst_h, dst_w, bytes
);
} else {
blend_const_alpha(
dst_p, temp->stride[p],
color_yuv[p],
alpha_p, sba->stride[0], color_a,
dst_h, dst_w, bytes
);
}
}
if (sbi)
free_mp_image(sbi);
if (sba)
free_mp_image(sba);
}
if (temp != &dst_region) {
// convert back
mp_image_swscale(&dst_region, temp, csp, SWS_AREA); // chroma down
// clean up
free_mp_image(temp);
}
}
// vim: ts=4 sw=4 et tw=80

12
sub/draw_bmp.h Normal file
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@ -0,0 +1,12 @@
#ifndef MPLAYER_DRAW_BMP_H
#define MPLAYER_DRAW_BMP_H
struct mp_image;
struct sub_bitmaps;
struct mp_csp_details;
void mp_draw_sub_bitmaps(struct mp_image *dst, struct sub_bitmaps *sbs,
struct mp_csp_details *csp);
#endif /* MPLAYER_DRAW_BMP_H */
// vim: ts=4 sw=4 et tw=80