0,0 → 1,203 |
/* |
* Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com> |
* |
* Blackfin video color space converter 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 "libavutil/pixdesc.h" |
#include <stdint.h> |
|
#include "config.h" |
#include "libavutil/attributes.h" |
#include "libswscale/swscale_internal.h" |
|
#if defined(__FDPIC__) && CONFIG_SRAM |
#define L1CODE __attribute__((l1_text)) |
#else |
#define L1CODE |
#endif |
|
void ff_bfin_yuv2rgb555_line(const uint8_t *Y, const uint8_t *U, |
const uint8_t *V, uint8_t *out, |
int w, uint32_t *coeffs) L1CODE; |
|
void ff_bfin_yuv2rgb565_line(const uint8_t *Y, const uint8_t *U, |
const uint8_t *V, uint8_t *out, |
int w, uint32_t *coeffs) L1CODE; |
|
void ff_bfin_yuv2rgb24_line(const uint8_t *Y, const uint8_t *U, |
const uint8_t *V, uint8_t *out, |
int w, uint32_t *coeffs) L1CODE; |
|
typedef void (*ltransform)(const uint8_t *Y, const uint8_t *U, const 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, const uint8_t **in, int *instrides, |
int srcSliceY, int srcSliceH, uint8_t **oplanes, |
int *outstrides, ltransform lcscf, |
int rgb, int masks) |
{ |
const uint8_t *py, *pu, *pv; |
uint8_t *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, const 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, const 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, const 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, const 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, const 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, const 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); |
} |
|
av_cold SwsFunc ff_yuv2rgb_init_bfin(SwsContext *c) |
{ |
SwsFunc f; |
|
switch (c->dstFormat) { |
case AV_PIX_FMT_RGB555: |
f = bfin_yuv420_rgb555; |
break; |
case AV_PIX_FMT_BGR555: |
f = bfin_yuv420_bgr555; |
break; |
case AV_PIX_FMT_RGB565: |
f = bfin_yuv420_rgb565; |
break; |
case AV_PIX_FMT_BGR565: |
f = bfin_yuv420_bgr565; |
break; |
case AV_PIX_FMT_RGB24: |
f = bfin_yuv420_rgb24; |
break; |
case AV_PIX_FMT_BGR24: |
f = bfin_yuv420_bgr24; |
break; |
default: |
return 0; |
} |
|
av_log(c, AV_LOG_INFO, "BlackFin accelerated color space converter %s\n", |
av_get_pix_fmt_name(c->dstFormat)); |
|
return f; |
} |