FFmpeg/libswscale/yuv2rgb_bfin.c
Mike Frysinger d2a4ecafbb FLAT objects cannot have multiple sections, so using the L1 attributes breaks
linking. The FDPIC relocs also break for any other format. Thus check the
compiler environment and select the appropriate sections/relocs.
patch by Mike Frysinger, vapier.adi a gmail d com

Originally committed as revision 26010 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
2008-02-16 15:17:59 +00:00

208 lines
6.5 KiB
C

/*
* Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
* April 20, 2007
*
* Blackfin Video Color Space Converters Operations
* convert I420 YV12 to RGB in various formats,
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <assert.h>
#include "config.h"
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#include <unistd.h>
#include "rgb2rgb.h"
#include "swscale.h"
#include "swscale_internal.h"
#ifdef __FDPIC__
#define L1CODE __attribute__ ((l1_text))
#else
#define L1CODE
#endif
extern void ff_bfin_yuv2rgb555_line (uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
int w, uint32_t *coeffs) L1CODE;
extern void ff_bfin_yuv2rgb565_line (uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
int w, uint32_t *coeffs) L1CODE;
extern void ff_bfin_yuv2rgb24_line (uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
int w, uint32_t *coeffs) L1CODE;
typedef void (* ltransform_t)(uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
int w, uint32_t *coeffs);
static void bfin_prepare_coefficients (SwsContext *c, int rgb, int masks)
{
int oy;
oy = c->yOffset&0xffff;
oy = oy >> 3; // keep everything U8.0 for offset calculation
c->oc = 128*0x01010101U;
c->oy = oy*0x01010101U;
/* copy 64bit vector coeffs down to 32bit vector coeffs */
c->cy = c->yCoeff;
c->zero = 0;
if (rgb) {
c->crv = c->vrCoeff;
c->cbu = c->ubCoeff;
c->cgu = c->ugCoeff;
c->cgv = c->vgCoeff;
} else {
c->crv = c->ubCoeff;
c->cbu = c->vrCoeff;
c->cgu = c->vgCoeff;
c->cgv = c->ugCoeff;
}
if (masks == 555) {
c->rmask = 0x001f * 0x00010001U;
c->gmask = 0x03e0 * 0x00010001U;
c->bmask = 0x7c00 * 0x00010001U;
} else if (masks == 565) {
c->rmask = 0x001f * 0x00010001U;
c->gmask = 0x07e0 * 0x00010001U;
c->bmask = 0xf800 * 0x00010001U;
}
}
static int core_yuv420_rgb (SwsContext *c,
uint8_t **in, int *instrides,
int srcSliceY, int srcSliceH,
uint8_t **oplanes, int *outstrides,
ltransform_t lcscf, int rgb, int masks)
{
uint8_t *py,*pu,*pv,*op;
int w = instrides[0];
int h2 = srcSliceH>>1;
int i;
bfin_prepare_coefficients (c, rgb, masks);
py = in[0];
pu = in[1+(1^rgb)];
pv = in[1+(0^rgb)];
op = oplanes[0] + srcSliceY*outstrides[0];
for (i=0;i<h2;i++) {
lcscf (py, pu, pv, op, w, &c->oy);
py += instrides[0];
op += outstrides[0];
lcscf (py, pu, pv, op, w, &c->oy);
py += instrides[0];
pu += instrides[1];
pv += instrides[2];
op += outstrides[0];
}
return srcSliceH;
}
static int bfin_yuv420_rgb555 (SwsContext *c,
uint8_t **in, int *instrides,
int srcSliceY, int srcSliceH,
uint8_t **oplanes, int *outstrides)
{
return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
ff_bfin_yuv2rgb555_line, 1, 555);
}
static int bfin_yuv420_bgr555 (SwsContext *c,
uint8_t **in, int *instrides,
int srcSliceY, int srcSliceH,
uint8_t **oplanes, int *outstrides)
{
return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
ff_bfin_yuv2rgb555_line, 0, 555);
}
static int bfin_yuv420_rgb24 (SwsContext *c,
uint8_t **in, int *instrides,
int srcSliceY, int srcSliceH,
uint8_t **oplanes, int *outstrides)
{
return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
ff_bfin_yuv2rgb24_line, 1, 888);
}
static int bfin_yuv420_bgr24 (SwsContext *c,
uint8_t **in, int *instrides,
int srcSliceY, int srcSliceH,
uint8_t **oplanes, int *outstrides)
{
return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
ff_bfin_yuv2rgb24_line, 0, 888);
}
static int bfin_yuv420_rgb565 (SwsContext *c,
uint8_t **in, int *instrides,
int srcSliceY, int srcSliceH,
uint8_t **oplanes, int *outstrides)
{
return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
ff_bfin_yuv2rgb565_line, 1, 565);
}
static int bfin_yuv420_bgr565 (SwsContext *c,
uint8_t **in, int *instrides,
int srcSliceY, int srcSliceH,
uint8_t **oplanes, int *outstrides)
{
return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
ff_bfin_yuv2rgb565_line, 0, 565);
}
SwsFunc ff_bfin_yuv2rgb_get_func_ptr (SwsContext *c)
{
SwsFunc f;
switch(c->dstFormat) {
case PIX_FMT_RGB555: f = bfin_yuv420_rgb555; break;
case PIX_FMT_BGR555: f = bfin_yuv420_bgr555; break;
case PIX_FMT_RGB565: f = bfin_yuv420_rgb565; break;
case PIX_FMT_BGR565: f = bfin_yuv420_bgr565; break;
case PIX_FMT_RGB24: f = bfin_yuv420_rgb24; break;
case PIX_FMT_BGR24: f = bfin_yuv420_bgr24; break;
default:
return 0;
}
av_log(c, AV_LOG_INFO, "BlackFin Accelerated Color Space Converter %s\n",
sws_format_name (c->dstFormat));
return f;
}