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gstreamer/gst-libs/gst/video/video-blend.c
Thibault Saunier 80054a3b1e video: add some internal helper functions for image blending 
This could be improved if we decide we don't need it to
be this generic/flexible.
2011-12-05 15:03:47 +00:00

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/* Gstreamer video blending utility functions
*
* Copied/pasted from gst/videoconvert/videoconvert.c
* Copyright (C) 2010 David Schleef <ds@schleef.org>
* Copyright (C) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* Copyright (C) <2011> Intel Corporation
* Copyright (C) <2011> Collabora Ltd.
* Copyright (C) <2011> Thibault Saunier <thibault.saunier@collabora.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "video-blend.h"
#include "videoblendorc.h"
#include <string.h>
#ifndef GST_DISABLE_GST_DEBUG
#define GST_CAT_DEFAULT ensure_debug_category()
static GstDebugCategory *
ensure_debug_category (void)
{
static gsize cat_gonce = 0;
if (g_once_init_enter (&cat_gonce)) {
gsize cat_done;
cat_done = (gsize) _gst_debug_category_new ("video-blending", 0,
"video blending");
g_once_init_leave (&cat_gonce, cat_done);
}
return (GstDebugCategory *) cat_gonce;
}
#else
#define ensure_debug_category() /* NOOP */
#endif /* GST_DISABLE_GST_DEBUG */
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
# define ARGB_A 3
# define ARGB_R 2
# define ARGB_G 1
# define ARGB_B 0
#else
# define ARGB_A 0
# define ARGB_R 1
# define ARGB_G 2
# define ARGB_B 3
#endif
/* Copy/pasted from 0.11 video.c */
static int
fill_planes (GstBlendVideoFormatInfo * info)
{
gint width, height;
width = info->width;
height = info->height;
switch (info->fmt) {
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_YVYU:
case GST_VIDEO_FORMAT_UYVY:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_r210:
info->stride[0] = width * 4;
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_RGB16:
case GST_VIDEO_FORMAT_BGR16:
case GST_VIDEO_FORMAT_RGB15:
case GST_VIDEO_FORMAT_BGR15:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
case GST_VIDEO_FORMAT_v308:
info->stride[0] = GST_ROUND_UP_4 (width * 3);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_v210:
info->stride[0] = ((width + 47) / 48) * 128;
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_v216:
info->stride[0] = GST_ROUND_UP_8 (width * 4);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_GRAY8:
case GST_VIDEO_FORMAT_Y800:
info->stride[0] = GST_ROUND_UP_4 (width);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_GRAY16_BE:
case GST_VIDEO_FORMAT_GRAY16_LE:
case GST_VIDEO_FORMAT_Y16:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_UYVP:
info->stride[0] = GST_ROUND_UP_4 ((width * 2 * 5 + 3) / 4);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_RGB8_PALETTED:
info->stride[0] = GST_ROUND_UP_4 (width);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_IYU1:
info->stride[0] = GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) +
GST_ROUND_UP_4 (width) / 2);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_ARGB64:
case GST_VIDEO_FORMAT_AYUV64:
info->stride[0] = width * 8;
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_I420:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
info->offset[2] = info->offset[1] +
info->stride[1] * (GST_ROUND_UP_2 (height) / 2);
break;
case GST_VIDEO_FORMAT_YV12: /* same as I420, but plane 1+2 swapped */
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[2] = info->stride[0] * GST_ROUND_UP_2 (height);
info->offset[1] = info->offset[2] +
info->stride[1] * (GST_ROUND_UP_2 (height) / 2);
break;
case GST_VIDEO_FORMAT_Y41B:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_16 (width) / 4;
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] + info->stride[1] * height;
/* simplification of ROUNDUP4(w)*h + 2*((ROUNDUP16(w)/4)*h */
break;
case GST_VIDEO_FORMAT_Y42B:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_8 (width) / 2;
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] + info->stride[1] * height;
/* simplification of ROUNDUP4(w)*h + 2*(ROUNDUP8(w)/2)*h */
break;
case GST_VIDEO_FORMAT_Y444:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = info->stride[0];
info->stride[2] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] * 2;
break;
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
break;
case GST_VIDEO_FORMAT_A420:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
info->stride[2] = info->stride[1];
info->stride[3] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
info->offset[2] = info->offset[1] +
info->stride[1] * (GST_ROUND_UP_2 (height) / 2);
info->offset[3] = info->offset[2] +
info->stride[2] * (GST_ROUND_UP_2 (height) / 2);
break;
case GST_VIDEO_FORMAT_YUV9:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) / 4);
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] +
info->stride[1] * (GST_ROUND_UP_4 (height) / 4);
break;
case GST_VIDEO_FORMAT_YVU9:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) / 4);
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[2] = info->stride[0] * height;
info->offset[1] = info->offset[2] +
info->stride[1] * (GST_ROUND_UP_4 (height) / 4);
break;
case GST_VIDEO_FORMAT_UNKNOWN:
GST_ERROR ("invalid format");
g_warning ("invalid format");
break;
}
return 0;
}
typedef struct
{
GstVideoFormat format;
void (*getline) (guint8 * dest, const GstBlendVideoFormatInfo * src,
guint xoff, int j);
void (*putline) (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff,
int j);
void (*matrix) (guint8 * tmpline, guint width);
} GetPutLine;
#define GET_LINE(info, comp, line) \
(info)->pixels + info->offset[(comp)] + ((info)->stride[(comp)] * (line))
/* Line conversion to AYUV */
/* Supports YV12 as well */
static void
getline_I420 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_I420 (dest,
GET_LINE (src, 0, j) + xoff,
GET_LINE (src, 1, j >> 1) + GST_ROUND_UP_2 (xoff / 2),
GET_LINE (src, 2, j >> 1) + GST_ROUND_UP_2 (xoff / 2), src->width);
}
/* Supports YV12 as well */
static void
putline_I420 (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
cogorc_putline_I420 (GET_LINE (dest, 0, j) + xoff,
GET_LINE (dest, 1, j >> 1) + GST_ROUND_UP_2 (xoff / 2),
GET_LINE (dest, 2, j >> 1) + GST_ROUND_UP_2 (xoff / 2),
line, srcinfo->width / 2);
}
static void
getline_YUY2 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_YUY2 (dest, GET_LINE (src, 0, j) +
(GST_ROUND_UP_2 (xoff * 4) / 2), src->width / 2);
}
static void
putline_YUY2 (GstBlendVideoFormatInfo * dest, GstBlendVideoFormatInfo * srcinfo,
const guint8 * line, guint xoff, int j)
{
cogorc_putline_YUY2 (GET_LINE (dest, 0,
j) + (GST_ROUND_UP_2 (xoff * 4) / 2), line, srcinfo->width / 2);
}
static void
getline_AYUV (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
memcpy (dest, GET_LINE (src, 0, j) + (xoff * 4), (src->width - xoff) * 4);
}
static void
putline_AYUV (GstBlendVideoFormatInfo * dest, GstBlendVideoFormatInfo * srcinfo,
const guint8 * line, guint xoff, int j)
{
memcpy (GET_LINE (dest, 0, j) + (xoff * 4), line, srcinfo->width * 4);
}
static void
getline_UYVY (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_UYVY (dest, GET_LINE (src, 0, j) + xoff * 2, src->width / 2);
}
static void
putline_UYVY (GstBlendVideoFormatInfo * dest, GstBlendVideoFormatInfo * srcinfo,
const guint8 * line, guint xoff, int j)
{
cogorc_putline_UYVY (GET_LINE (dest, 0, j) +
(GST_ROUND_UP_2 (xoff * 4) / 2), line, srcinfo->width / 2);
}
static void
getline_v308 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
int i;
const guint8 *srcline = GET_LINE (src, 0, j) + GST_ROUND_UP_2 (xoff * 3);
for (i = 0; i < src->width; i++) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 1] = srcline[i * 3 + 0];
dest[i * 4 + 2] = srcline[i * 3 + 1];
dest[i * 4 + 3] = srcline[i * 3 + 2];
}
}
static void
putline_v308 (GstBlendVideoFormatInfo * dest, GstBlendVideoFormatInfo * srcinfo,
const guint8 * line, guint xoff, int j)
{
int i;
guint8 *destline = GET_LINE (dest, 0, j) + GST_ROUND_UP_2 (xoff * 3);
for (i = 0; i < srcinfo->width; i++) {
destline[i * 3 + 0] = line[i * 4 + 1];
destline[i * 3 + 1] = line[i * 4 + 2];
destline[i * 3 + 2] = line[i * 4 + 3];
}
}
static void
getline_v210 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
int i;
const guint8 *srcline = GET_LINE (src, 0, j) + GST_ROUND_UP_2 (xoff * 4) / 5;
for (i = 0; i < src->width; i += 6) {
guint32 a0, a1, a2, a3;
guint16 y0, y1, y2, y3, y4, y5;
guint16 u0, u2, u4;
guint16 v0, v2, v4;
a0 = GST_READ_UINT32_LE (srcline + (i / 6) * 16 + 0);
a1 = GST_READ_UINT32_LE (srcline + (i / 6) * 16 + 4);
a2 = GST_READ_UINT32_LE (srcline + (i / 6) * 16 + 8);
a3 = GST_READ_UINT32_LE (srcline + (i / 6) * 16 + 12);
u0 = ((a0 >> 0) & 0x3ff) >> 2;
y0 = ((a0 >> 10) & 0x3ff) >> 2;
v0 = ((a0 >> 20) & 0x3ff) >> 2;
y1 = ((a1 >> 0) & 0x3ff) >> 2;
u2 = ((a1 >> 10) & 0x3ff) >> 2;
y2 = ((a1 >> 20) & 0x3ff) >> 2;
v2 = ((a2 >> 0) & 0x3ff) >> 2;
y3 = ((a2 >> 10) & 0x3ff) >> 2;
u4 = ((a2 >> 20) & 0x3ff) >> 2;
y4 = ((a3 >> 0) & 0x3ff) >> 2;
v4 = ((a3 >> 10) & 0x3ff) >> 2;
y5 = ((a3 >> 20) & 0x3ff) >> 2;
dest[4 * (i + 0) + 0] = 0xff;
dest[4 * (i + 0) + 1] = y0;
dest[4 * (i + 0) + 2] = u0;
dest[4 * (i + 0) + 3] = v0;
dest[4 * (i + 1) + 0] = 0xff;
dest[4 * (i + 1) + 1] = y1;
dest[4 * (i + 1) + 2] = u0;
dest[4 * (i + 1) + 3] = v0;
dest[4 * (i + 2) + 0] = 0xff;
dest[4 * (i + 2) + 1] = y2;
dest[4 * (i + 2) + 2] = u2;
dest[4 * (i + 2) + 3] = v2;
dest[4 * (i + 3) + 0] = 0xff;
dest[4 * (i + 3) + 1] = y3;
dest[4 * (i + 3) + 2] = u2;
dest[4 * (i + 3) + 3] = v2;
dest[4 * (i + 4) + 0] = 0xff;
dest[4 * (i + 4) + 1] = y4;
dest[4 * (i + 4) + 2] = u4;
dest[4 * (i + 4) + 3] = v4;
dest[4 * (i + 5) + 0] = 0xff;
dest[4 * (i + 5) + 1] = y5;
dest[4 * (i + 5) + 2] = u4;
dest[4 * (i + 5) + 3] = v4;
}
}
static void
putline_v210 (GstBlendVideoFormatInfo * dest, GstBlendVideoFormatInfo * srcinfo,
const guint8 * line, guint xoff, int j)
{
int i;
guint8 *destline = GET_LINE (dest, 0, j) + GST_ROUND_UP_2 (xoff * 4) / 5;
for (i = 0; i < srcinfo->width + 5; i += 6) {
guint32 a0, a1, a2, a3;
guint16 y0, y1, y2, y3, y4, y5;
guint16 u0, u1, u2;
guint16 v0, v1, v2;
y0 = line[4 * (i + 0) + 1] << 2;
y1 = line[4 * (i + 1) + 1] << 2;
y2 = line[4 * (i + 2) + 1] << 2;
y3 = line[4 * (i + 3) + 1] << 2;
y4 = line[4 * (i + 4) + 1] << 2;
y5 = line[4 * (i + 5) + 1] << 2;
u0 = (line[4 * (i + 0) + 2] + line[4 * (i + 1) + 2]) << 1;
u1 = (line[4 * (i + 2) + 2] + line[4 * (i + 3) + 2]) << 1;
u2 = (line[4 * (i + 4) + 2] + line[4 * (i + 5) + 2]) << 1;
v0 = (line[4 * (i + 0) + 3] + line[4 * (i + 1) + 3]) << 1;
v1 = (line[4 * (i + 2) + 3] + line[4 * (i + 3) + 3]) << 1;
v2 = (line[4 * (i + 4) + 3] + line[4 * (i + 5) + 3]) << 1;
a0 = u0 | (y0 << 10) | (v0 << 20);
a1 = y1 | (u1 << 10) | (y2 << 20);
a2 = v1 | (y3 << 10) | (u2 << 20);
a3 = y4 | (v2 << 10) | (y5 << 20);
GST_WRITE_UINT32_LE (destline + (i / 6) * 16 + 0, a0);
GST_WRITE_UINT32_LE (destline + (i / 6) * 16 + 4, a1);
GST_WRITE_UINT32_LE (destline + (i / 6) * 16 + 8, a2);
GST_WRITE_UINT32_LE (destline + (i / 6) * 16 + 12, a3);
}
}
static void
getline_v216 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
int i;
const guint8 *srcline = GET_LINE (src, 0, j) + GST_ROUND_UP_2 (xoff + 3);
for (i = 0; i < src->width; i++) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 1] = GST_READ_UINT16_LE (srcline + i * 4 + 2) >> 8;
dest[i * 4 + 2] = GST_READ_UINT16_LE (srcline + (i >> 1) * 8 + 0) >> 8;
dest[i * 4 + 3] = GST_READ_UINT16_LE (srcline + (i >> 1) * 8 + 4) >> 8;
}
}
static void
putline_v216 (GstBlendVideoFormatInfo * dest, GstBlendVideoFormatInfo * srcinfo,
const guint8 * line, guint xoff, int j)
{
int i;
guint8 *destline = GET_LINE (dest, 0, j) + GST_ROUND_UP_2 (xoff + 3);
for (i = 0; i < srcinfo->width / 2; i++) {
GST_WRITE_UINT16_LE (destline + i * 8 + 0, line[(i * 2 + 0) * 4 + 2] << 8);
GST_WRITE_UINT16_LE (destline + i * 8 + 2, line[(i * 2 + 0) * 4 + 1] << 8);
GST_WRITE_UINT16_LE (destline + i * 8 + 4, line[(i * 2 + 1) * 4 + 3] << 8);
GST_WRITE_UINT16_LE (destline + i * 8 + 8, line[(i * 2 + 0) * 4 + 1] << 8);
}
}
static void
getline_Y41B (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_YUV9 (dest,
GET_LINE (src, 0, j) + xoff,
GET_LINE (src, 1, j) + (xoff / 4), GET_LINE (src, 2, j) + (xoff / 4),
src->width / 2);
}
static void
putline_Y41B (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
int i;
guint8 *destlineY = GET_LINE (dest, 0, j) + xoff;
guint8 *destlineU = GET_LINE (dest, 1, j) + (xoff / 4);
guint8 *destlineV = GET_LINE (dest, 2, j) + (xoff / 4);
for (i = 0; i < srcinfo->width - 3; i += 4) {
destlineY[i] = line[i * 4 + 1];
destlineY[i + 1] = line[i * 4 + 5];
destlineY[i + 2] = line[i * 4 + 9];
destlineY[i + 3] = line[i * 4 + 13];
destlineU[i >> 2] =
(line[i * 4 + 2] + line[i * 4 + 6] + line[i * 4 + 10] + line[i * 4 +
14] + 2) >> 2;
destlineV[i >> 2] =
(line[i * 4 + 3] + line[i * 4 + 7] + line[i * 4 + 11] + line[i * 4 +
15] + 2) >> 2;
}
if (i == srcinfo->width - 3) {
destlineY[i] = line[i * 4 + 1];
destlineY[i + 1] = line[i * 4 + 5];
destlineY[i + 2] = line[i * 4 + 9];
destlineU[i >> 2] =
(line[i * 4 + 2] + line[i * 4 + 6] + line[i * 4 + 10] + 1) / 3;
destlineV[i >> 2] =
(line[i * 4 + 3] + line[i * 4 + 7] + line[i * 4 + 11] + 1) / 3;
} else if (i == srcinfo->width - 2) {
destlineY[i] = line[i * 4 + 1];
destlineY[i + 1] = line[i * 4 + 5];
destlineU[i >> 2] = (line[i * 4 + 2] + line[i * 4 + 6] + 1) >> 1;
destlineV[i >> 2] = (line[i * 4 + 3] + line[i * 4 + 7] + 1) >> 1;
} else if (i == srcinfo->width - 1) {
destlineY[i + 1] = line[i * 4 + 5];
destlineU[i >> 2] = line[i * 4 + 2];
destlineV[i >> 2] = line[i * 4 + 3];
}
}
static void
getline_Y42B (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_Y42B (dest,
GET_LINE (src, 0, j) + xoff,
GET_LINE (src, 1, j) + GST_ROUND_UP_2 (xoff / 2),
GET_LINE (src, 2, j) + GST_ROUND_UP_2 (xoff / 2), src->width / 2);
}
static void
putline_Y42B (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
cogorc_putline_Y42B (GET_LINE (dest, 0, j) + xoff,
GET_LINE (dest, 1, j) + GST_ROUND_UP_2 (xoff / 2),
GET_LINE (dest, 2, j) + GST_ROUND_UP_2 (xoff / 2), line,
srcinfo->width / 2);
}
static void
getline_Y444 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_Y444 (dest,
GET_LINE (src, 0, j) + xoff,
GET_LINE (src, 1, j) + xoff, GET_LINE (src, 2, j) + xoff, src->width);
}
static void
putline_Y444 (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
cogorc_putline_Y444 (GET_LINE (dest, 0, j) + xoff,
GET_LINE (dest, 1, j) + xoff,
GET_LINE (dest, 2, j) + xoff, line, srcinfo->width);
}
static void
getline_Y800 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_Y800 (dest, GET_LINE (src, 0, j) + xoff, src->width);
}
static void
putline_Y800 (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
cogorc_putline_Y800 (GET_LINE (dest, 0, j) + xoff, line, srcinfo->width);
}
static void
getline_Y16 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_Y16 (dest, GET_LINE (src, 0, j) + xoff * 2, src->width);
}
static void
putline_Y16 (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
cogorc_putline_Y16 (GET_LINE (dest, 0, j) + xoff * 2, line, srcinfo->width);
}
static void
getline_NV12 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_NV12 (dest,
GET_LINE (src, 0, j) + xoff,
GET_LINE (src, 1, j >> 1) + xoff, src->width / 2);
}
static void
putline_NV12 (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
cogorc_putline_NV12 (GET_LINE (dest, 0, j) + xoff,
GET_LINE (dest, 1, j >> 1) + xoff, line, srcinfo->width / 2);
}
static void
getline_NV21 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_NV21 (dest,
GET_LINE (src, 0, j) + xoff,
GET_LINE (src, 1, j >> 1) + xoff, src->width / 2);
}
static void
putline_NV21 (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
cogorc_putline_NV21 (GET_LINE (dest, 0, j) + xoff,
GET_LINE (dest, 1, j >> 1) + xoff, line, srcinfo->width / 2);
}
static void
getline_UYVP (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
int i;
const guint8 *srcline = GET_LINE (src, 0, j)
+ xoff * 3;
for (i = 0; i < src->width; i += 2) {
guint16 y0, y1;
guint16 u0;
guint16 v0;
u0 = (srcline[(i / 2) * 5 + 0] << 2) | (srcline[(i / 2) * 5 + 1] >> 6);
y0 = ((srcline[(i / 2) * 5 + 1] & 0x3f) << 4) |
(srcline[(i / 2) * 5 + 2] >> 4);
v0 = ((srcline[(i / 2) * 5 + 2] & 0x0f) << 6) |
(srcline[(i / 2) * 5 + 3] >> 2);
y1 = ((srcline[(i / 2) * 5 + 3] & 0x03) << 8) | srcline[(i / 2) * 5 + 4];
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 1] = y0 >> 2;
dest[i * 4 + 2] = u0 >> 2;
dest[i * 4 + 3] = v0 >> 2;
dest[i * 4 + 4] = 0xff;
dest[i * 4 + 5] = y1 >> 2;
dest[i * 4 + 6] = u0 >> 2;
dest[i * 4 + 7] = v0 >> 2;
}
}
static void
putline_UYVP (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
int i;
guint8 *destline = GET_LINE (dest, 0, j) + xoff * 3;
for (i = 0; i < srcinfo->width; i += 2) {
guint16 y0, y1;
guint16 u0;
guint16 v0;
y0 = line[4 * (i + 0) + 1];
y1 = line[4 * (i + 1) + 1];
u0 = (line[4 * (i + 0) + 2] + line[4 * (i + 1) + 2] + 1) >> 1;
v0 = (line[4 * (i + 0) + 3] + line[4 * (i + 1) + 3] + 1) >> 1;
destline[(i / 2) * 5 + 0] = u0;
destline[(i / 2) * 5 + 1] = y0 >> 2;
destline[(i / 2) * 5 + 2] = (y0 << 6) | (v0 >> 4);
destline[(i / 2) * 5 + 3] = (v0 << 4) | (y1 >> 2);
destline[(i / 2) * 5 + 4] = (y1 << 2);
}
}
static void
getline_A420 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_A420 (dest,
GET_LINE (src, 0, j) + xoff,
GET_LINE (src, 1, j >> 1) + GST_ROUND_UP_2 (xoff / 2),
GET_LINE (src, 2, j >> 1) + GST_ROUND_UP_2 (xoff / 2),
GET_LINE (src, 3, j) + GST_ROUND_UP_2 (xoff / 2), src->width);
}
static void
putline_A420 (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
cogorc_putline_A420 (GET_LINE (dest, 0, j) + xoff,
GET_LINE (dest, 1, j >> 1) + GST_ROUND_UP_2 (xoff / 2),
GET_LINE (dest, 2, j >> 1) + GST_ROUND_UP_2 (xoff / 2),
GET_LINE (dest, 3, j) + GST_ROUND_UP_2 (xoff / 2), line,
srcinfo->width / 2);
}
static void
getline_YUV9 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_YUV9 (dest,
GET_LINE (src, 0, j) + xoff,
GET_LINE (src, 1, j >> 2) + GST_ROUND_UP_4 (xoff / 4),
GET_LINE (src, 2, j >> 2) + GST_ROUND_UP_4 (xoff / 4), src->width / 2);
}
static void
putline_YUV9 (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
int i;
guint8 *destY = GET_LINE (dest, 0, j) + xoff;
guint8 *destU = GET_LINE (dest, 1, j >> 2) + GST_ROUND_UP_4 (xoff / 4);
guint8 *destV = GET_LINE (dest, 2, j >> 2) + GST_ROUND_UP_4 (xoff / 4);
guint width = srcinfo->width;
for (i = 0; i < width - 3; i += 4) {
destY[i] = line[i * 4 + 1];
destY[i + 1] = line[i * 4 + 5];
destY[i + 2] = line[i * 4 + 9];
destY[i + 3] = line[i * 4 + 13];
if (j % 4 == 0) {
destU[i >> 2] =
(line[i * 4 + 2] + line[i * 4 + 6] + line[i * 4 + 10] + line[i * 4 +
14]) >> 2;
destV[i >> 2] =
(line[i * 4 + 3] + line[i * 4 + 7] + line[i * 4 + 11] + line[i * 4 +
15]) >> 2;
}
}
if (i == width - 3) {
destY[i] = line[i * 4 + 1];
destY[i + 1] = line[i * 4 + 5];
destY[i + 2] = line[i * 4 + 9];
if (j % 4 == 0) {
destU[i >> 2] =
(line[i * 4 + 2] + line[i * 4 + 6] + line[i * 4 + 10]) / 3;
destV[i >> 2] =
(line[i * 4 + 3] + line[i * 4 + 7] + line[i * 4 + 11]) / 3;
}
} else if (i == width - 2) {
destY[i] = line[i * 4 + 1];
destY[i + 1] = line[i * 4 + 5];
if (j % 4 == 0) {
destU[i >> 2] = (line[i * 4 + 2] + line[i * 4 + 6]) >> 1;
destV[i >> 2] = (line[i * 4 + 3] + line[i * 4 + 7]) >> 1;
}
} else if (i == width - 1) {
destY[i] = line[i * 4 + 1];
destU[i >> 2] = line[i * 4 + 2];
destV[i >> 2] = line[i * 4 + 3];
}
}
static void
getline_IYU1 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
int i;
const guint8 *srcline =
GET_LINE (src, 0, j) + GST_ROUND_UP_2 ((xoff * 3) / 2);
guint width = src->width;
for (i = 0; i < width - 3; i += 4) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 4] = 0xff;
dest[i * 4 + 8] = 0xff;
dest[i * 4 + 12] = 0xff;
dest[i * 4 + 1] = srcline[(i >> 2) * 6 + 1];
dest[i * 4 + 5] = srcline[(i >> 2) * 6 + 2];
dest[i * 4 + 9] = srcline[(i >> 2) * 6 + 4];
dest[i * 4 + 13] = srcline[(i >> 2) * 6 + 5];
dest[i * 4 + 2] = dest[i * 4 + 6] = dest[i * 4 + 10] = dest[i * 4 + 14] =
srcline[(i >> 2) * 6 + 0];
dest[i * 4 + 3] = dest[i * 4 + 7] = dest[i * 4 + 11] = dest[i * 4 + 15] =
srcline[(i >> 2) * 6 + 3];
}
if (i == width - 3) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 4] = 0xff;
dest[i * 4 + 8] = 0xff;
dest[i * 4 + 1] = srcline[(i >> 2) * 6 + 1];
dest[i * 4 + 5] = srcline[(i >> 2) * 6 + 2];
dest[i * 4 + 9] = srcline[(i >> 2) * 6 + 4];
dest[i * 4 + 2] = dest[i * 4 + 6] = dest[i * 4 + 10] =
srcline[(i >> 2) * 6 + 0];
dest[i * 4 + 3] = dest[i * 4 + 7] = dest[i * 4 + 11] =
srcline[(i >> 2) * 6 + 3];
} else if (i == width - 2) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 4] = 0xff;
dest[i * 4 + 1] = srcline[(i >> 2) * 6 + 1];
dest[i * 4 + 5] = srcline[(i >> 2) * 6 + 2];
dest[i * 4 + 2] = dest[i * 4 + 6] = srcline[(i >> 2) * 6 + 0];
dest[i * 4 + 3] = dest[i * 4 + 7] = srcline[(i >> 2) * 6 + 3];
} else if (i == width - 1) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 1] = srcline[(i >> 2) * 6 + 1];
dest[i * 4 + 2] = srcline[(i >> 2) * 6 + 0];
dest[i * 4 + 3] = srcline[(i >> 2) * 6 + 3];
}
}
static void
putline_IYU1 (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
int i;
guint8 *destline = GET_LINE (dest, 0, j) + GST_ROUND_UP_2 ((xoff * 3) / 2);
guint width = srcinfo->width;
for (i = 0; i < width - 3; i += 4) {
destline[(i >> 2) * 6 + 1] = line[i * 4 + 1];
destline[(i >> 2) * 6 + 2] = line[i * 4 + 5];
destline[(i >> 2) * 6 + 4] = line[i * 4 + 9];
destline[(i >> 2) * 6 + 5] = line[i * 4 + 13];
destline[(i >> 2) * 6 + 0] =
(line[i * 4 + 2] + line[i * 4 + 6] + line[i * 4 + 10] + line[i * 4 +
14]) >> 2;
destline[(i >> 2) * 6 + 3] =
(line[i * 4 + 3] + line[i * 4 + 7] + line[i * 4 + 11] + line[i * 4 +
15]) >> 2;
}
if (i == width - 3) {
destline[(i >> 2) * 6 + 1] = line[i * 4 + 1];
destline[(i >> 2) * 6 + 2] = line[i * 4 + 5];
destline[(i >> 2) * 6 + 4] = line[i * 4 + 9];
destline[(i >> 2) * 6 + 0] =
(line[i * 4 + 2] + line[i * 4 + 6] + line[i * 4 + 10]) / 3;
destline[(i >> 2) * 6 + 3] =
(line[i * 4 + 3] + line[i * 4 + 7] + line[i * 4 + 11]) / 3;
} else if (i == width - 2) {
destline[(i >> 2) * 6 + 1] = line[i * 4 + 1];
destline[(i >> 2) * 6 + 2] = line[i * 4 + 5];
destline[(i >> 2) * 6 + 0] = (line[i * 4 + 2] + line[i * 4 + 6]) >> 1;
destline[(i >> 2) * 6 + 3] = (line[i * 4 + 3] + line[i * 4 + 7]) >> 1;
} else if (i == width - 1) {
destline[(i >> 2) * 6 + 1] = line[i * 4 + 1];
destline[(i >> 2) * 6 + 0] = line[i * 4 + 2];
destline[(i >> 2) * 6 + 3] = line[i * 4 + 3];
}
}
/* Line conversion to ARGB */
static void
getline_RGB (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
int i;
const guint8 *srcline = GET_LINE (src, 0, j) + xoff * 3;
for (i = 0; i < src->width; i++) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 1] = srcline[i * 3 + 0];
dest[i * 4 + 2] = srcline[i * 3 + 1];
dest[i * 4 + 3] = srcline[i * 3 + 2];
}
}
static void
putline_RGB (GstBlendVideoFormatInfo * dest, GstBlendVideoFormatInfo * srcinfo,
const guint8 * line, guint xoff, int j)
{
int i;
guint8 *destline = GET_LINE (dest, 0, j) + xoff * 3;
for (i = 0; i < srcinfo->width; i++) {
destline[i * 3 + 0] = line[i * 4 + 1];
destline[i * 3 + 1] = line[i * 4 + 2];
destline[i * 3 + 2] = line[i * 4 + 3];
}
}
static void
getline_BGR (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
int i;
const guint8 *srcline = GET_LINE (src, 0, j) + xoff * 3;
for (i = 0; i < src->width; i++) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 1] = srcline[i * 3 + 2];
dest[i * 4 + 2] = srcline[i * 3 + 1];
dest[i * 4 + 3] = srcline[i * 3 + 0];
}
}
static void
putline_BGR (GstBlendVideoFormatInfo * dest, GstBlendVideoFormatInfo * srcinfo,
const guint8 * line, guint xoff, int j)
{
int i;
guint8 *destline = GET_LINE (dest, 0, j) + xoff * 3;
for (i = 0; i < srcinfo->width; i++) {
destline[i * 3 + 0] = line[i * 4 + 3];
destline[i * 3 + 1] = line[i * 4 + 2];
destline[i * 3 + 2] = line[i * 4 + 1];
}
}
static void
getline_RGBA (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_RGBA (dest, GET_LINE (src, 0, j) + (4 * xoff), src->width);
}
static void
putline_RGBA (GstBlendVideoFormatInfo * dest, GstBlendVideoFormatInfo * srcinfo,
const guint8 * line, guint xoff, int j)
{
cogorc_putline_RGBA (GET_LINE (dest, 0, j) + (4 * xoff),
line, srcinfo->width);
}
static void
getline_ARGB (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
memcpy (dest, GET_LINE (src, 0, j), (src->width - xoff) * 4);
}
static void
putline_ARGB (GstBlendVideoFormatInfo * dest, GstBlendVideoFormatInfo * srcinfo,
const guint8 * line, guint xoff, int j)
{
memcpy (GET_LINE (dest, 0, j) + (xoff * 4), line, srcinfo->width * 4);
}
static void
getline_RGB16 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
int i;
const guint16 *srcline = (const guint16 *) GET_LINE (src, 0, j)
+ (xoff * 3);
for (i = 0; i < src->width; i++) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 1] = ((srcline[i] >> 11) & 0x1f) << 3;
dest[i * 4 + 2] = ((srcline[i] >> 5) & 0x3f) << 2;
dest[i * 4 + 3] = ((srcline[i]) & 0x1f) << 3;
}
}
static void
putline_RGB16 (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
int i;
guint16 *destline = (guint16 *) GET_LINE (dest, 0, j) + (xoff * 3);
for (i = 0; i < srcinfo->width; i++) {
destline[i] = ((line[i * 4 + 1] >> 3) << 11) | ((line[i * 4 +
2] >> 2) << 5) | (line[i * 4 + 3] >> 3);
}
}
static void
getline_RGB15 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
int i;
const guint16 *srcline = (const guint16 *) GET_LINE (src, 0, j)
+ (xoff * 3);
for (i = 0; i < src->width; i++) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 1] = ((srcline[i] >> 10) & 0x1f) << 3;
dest[i * 4 + 2] = ((srcline[i] >> 5) & 0x1f) << 3;
dest[i * 4 + 3] = ((srcline[i]) & 0x1f) << 3;
}
}
static void
putline_RGB15 (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
int i;
guint16 *destline = (guint16 *) GET_LINE (dest, 0, j) + (xoff * 3);
for (i = 0; i < srcinfo->width; i++) {
destline[i] = ((line[i * 4 + 1] >> 3) << 10) | ((line[i * 4 +
2] >> 3) << 5) | (line[i * 4 + 3] >> 3);
}
}
static void
getline_BGR15 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
int i;
const guint16 *srcline = (const guint16 *) GET_LINE (src, 0, j)
+ (xoff * 3);
for (i = 0; i < src->width; i++) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 3] = ((srcline[i] >> 10) & 0x1f) << 3;
dest[i * 4 + 2] = ((srcline[i] >> 5) & 0x1f) << 3;
dest[i * 4 + 1] = ((srcline[i]) & 0x1f) << 3;
}
}
static void
putline_BGR15 (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
int i;
guint16 *destline = (guint16 *) GET_LINE (dest, 0, j) + (xoff * 3);
for (i = 0; i < srcinfo->width; i++) {
destline[i] = ((line[i * 4 + 3] >> 3) << 10) | ((line[i * 4 +
2] >> 3) << 5) | (line[i * 4 + 1] >> 3);
}
}
static void
getline_BGR16 (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
int i;
const guint16 *srcline = (const guint16 *) GET_LINE (src, 0, j)
+ (xoff * 3);
for (i = 0; i < src->width; i++) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 3] = ((srcline[i] >> 11) & 0x1f) << 3;
dest[i * 4 + 2] = ((srcline[i] >> 5) & 0x3f) << 2;
dest[i * 4 + 1] = ((srcline[i]) & 0x1f) << 3;
}
}
static void
putline_BGR16 (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
int i;
guint16 *destline = (guint16 *) GET_LINE (dest, 0, j) + (xoff * 3);
for (i = 0; i < srcinfo->width; i++) {
destline[i] = ((line[i * 4 + 3] >> 3) << 11) | ((line[i * 4 +
2] >> 2) << 5) | (line[i * 4 + 1] >> 3);
}
}
static void
getline_BGRA (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_BGRA (dest, GET_LINE (src, 0, j) + xoff * 4, src->width);
}
static void
putline_BGRA (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
cogorc_putline_BGRA (GET_LINE (dest, 0, j) + xoff * 4, line, srcinfo->width);
}
static void
getline_ABGR (guint8 * dest, const GstBlendVideoFormatInfo * src, guint xoff,
int j)
{
cogorc_getline_ABGR (dest, GET_LINE (src, 0, j) + (xoff * 4), src->width);
}
static void
putline_ABGR (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * srcinfo, const guint8 * line, guint xoff, int j)
{
cogorc_putline_ABGR (GET_LINE (dest, 0, j) + (xoff * 4),
line, srcinfo->width);
}
static const GetPutLine lines[] = {
/* YUV lines conversion */
{GST_VIDEO_FORMAT_I420, getline_I420, putline_I420},
{GST_VIDEO_FORMAT_YV12, getline_I420, putline_I420},
{GST_VIDEO_FORMAT_AYUV, getline_AYUV, putline_AYUV},
{GST_VIDEO_FORMAT_YUY2, getline_YUY2, putline_YUY2},
{GST_VIDEO_FORMAT_UYVY, getline_UYVY, putline_UYVY},
{GST_VIDEO_FORMAT_v308, getline_v308, putline_v308},
{GST_VIDEO_FORMAT_v210, getline_v210, putline_v210},
{GST_VIDEO_FORMAT_v216, getline_v216, putline_v216},
{GST_VIDEO_FORMAT_Y41B, getline_Y41B, putline_Y41B},
{GST_VIDEO_FORMAT_Y42B, getline_Y42B, putline_Y42B},
{GST_VIDEO_FORMAT_Y444, getline_Y444, putline_Y444},
{GST_VIDEO_FORMAT_Y800, getline_Y800, putline_Y800},
{GST_VIDEO_FORMAT_Y16, getline_Y16, putline_Y16},
{GST_VIDEO_FORMAT_NV12, getline_NV12, putline_NV12},
{GST_VIDEO_FORMAT_NV21, getline_NV21, putline_NV21},
{GST_VIDEO_FORMAT_UYVP, getline_UYVP, putline_UYVP},
{GST_VIDEO_FORMAT_A420, getline_A420, putline_A420},
{GST_VIDEO_FORMAT_YUV9, getline_YUV9, putline_YUV9},
{GST_VIDEO_FORMAT_IYU1, getline_IYU1, putline_IYU1},
/* ARGB lines conversion */
{GST_VIDEO_FORMAT_RGB, getline_RGB, putline_RGB},
{GST_VIDEO_FORMAT_BGR, getline_BGR, putline_BGR},
{GST_VIDEO_FORMAT_RGBx, getline_RGBA, putline_RGBA},
{GST_VIDEO_FORMAT_RGBA, getline_RGBA, putline_RGBA},
{GST_VIDEO_FORMAT_ARGB, getline_ARGB, putline_ARGB},
{GST_VIDEO_FORMAT_RGB16, getline_RGB16, putline_RGB16},
{GST_VIDEO_FORMAT_BGR16, getline_BGR16, putline_BGR16},
{GST_VIDEO_FORMAT_BGR15, getline_BGR15, putline_BGR15},
{GST_VIDEO_FORMAT_RGB15, getline_RGB15, putline_RGB15},
{GST_VIDEO_FORMAT_BGRA, getline_BGRA, putline_BGRA},
{GST_VIDEO_FORMAT_ABGR, getline_ABGR, putline_ABGR},
{GST_VIDEO_FORMAT_BGRx, getline_BGRA, putline_BGRA}
};
static void
matrix_identity (guint8 * tmpline, guint width)
{
}
static void
matrix_rgb_to_yuv (guint8 * tmpline, guint width)
{
int i;
int r, g, b;
int y, u, v;
for (i = 0; i < width; i++) {
r = tmpline[i * 4 + 1];
g = tmpline[i * 4 + 2];
b = tmpline[i * 4 + 3];
y = (47 * r + 157 * g + 16 * b + 4096) >> 8;
u = (-26 * r - 87 * g + 112 * b + 32768) >> 8;
v = (112 * r - 102 * g - 10 * b + 32768) >> 8;
tmpline[i * 4 + 1] = CLAMP (y, 0, 255);
tmpline[i * 4 + 2] = CLAMP (u, 0, 255);
tmpline[i * 4 + 3] = CLAMP (v, 0, 255);
}
}
static void
matrix_yuv_to_rgb (guint8 * tmpline, guint width)
{
int i;
int r, g, b;
int y, u, v;
for (i = 0; i < width; i++) {
y = tmpline[i * 4 + 1];
u = tmpline[i * 4 + 2];
v = tmpline[i * 4 + 3];
r = (298 * y + 459 * v - 63514) >> 8;
g = (298 * y - 55 * u - 136 * v + 19681) >> 8;
b = (298 * y + 541 * u - 73988) >> 8;
tmpline[i * 4 + ARGB_R] = CLAMP (r, 0, 255);
tmpline[i * 4 + ARGB_G] = CLAMP (g, 0, 255);
tmpline[i * 4 + ARGB_B] = CLAMP (b, 0, 255);
}
}
static gboolean
lookup_getput (GetPutLine * getput, GstVideoFormat fmt)
{
int i;
getput->getline = NULL;
getput->putline = NULL;
getput->matrix = matrix_identity;
for (i = 0; i < sizeof (lines) / sizeof (lines[0]); i++) {
if (lines[i].format == fmt) {
getput->getline = lines[i].getline;
getput->putline = lines[i].putline;
return TRUE;
}
}
GST_WARNING ("Conversion from %i not supported", fmt);
return FALSE;
}
#define BLEND(ret, alpha, v0, v1) \
{ \
ret = (v0 * alpha + v1 * (255 - alpha)) / 255; \
}
void
video_blend_scale_linear_RGBA (GstBlendVideoFormatInfo * src,
gint dest_height, gint dest_width)
{
int acc;
int y_increment;
int x_increment;
int y1;
int i;
int j;
int x;
int dest_size;
guint dest_stride = dest_width * 4;
guint src_stride = src->width * 4;
guint8 *tmpbuf = g_malloc (dest_width * 8 * 4);
guint8 *dest_pixels =
g_malloc (gst_video_format_get_size (src->fmt, dest_height,
dest_width));
if (dest_height == 1)
y_increment = 0;
else
y_increment = ((src->height - 1) << 16) / (dest_height - 1) - 1;
if (dest_width == 1)
x_increment = 0;
else
x_increment = ((src->width - 1) << 16) / (dest_width - 1) - 1;
dest_size = dest_width * 4;
#define LINE(x) ((tmpbuf) + (dest_size)*((x)&1))
acc = 0;
orc_resample_bilinear_u32 (LINE (0), src->pixels, 0, x_increment, dest_width);
y1 = 0;
for (i = 0; i < dest_height; i++) {
j = acc >> 16;
x = acc & 0xffff;
if (x == 0) {
memcpy (dest_pixels + i * dest_stride, LINE (j), dest_size);
} else {
if (j > y1) {
orc_resample_bilinear_u32 (LINE (j),
src->pixels + j * src_stride, 0, x_increment, dest_width);
y1++;
}
if (j >= y1) {
orc_resample_bilinear_u32 (LINE (j + 1),
src->pixels + (j + 1) * src_stride, 0, x_increment, dest_width);
y1++;
}
orc_merge_linear_u8 (dest_pixels + i * dest_stride,
LINE (j), LINE (j + 1), (x >> 8), dest_width * 4);
}
acc += y_increment;
}
/* Update src, our reference to the old src->pixels is lost */
video_blend_format_info_init (src, dest_pixels, dest_height, dest_width,
src->fmt);
g_free (tmpbuf);
}
/* video_blend:
* @dest: The #GstBlendVideoFormatInfo where to blend @src in
* @src: the #GstBlendVideoFormatInfo that we want to blend into
* @dest
* @x: The x offset in pixel where the @src image should be blended
* @y: the y offset in pixel where the @src image should be blended
*
* Lets you blend the @src image into the @dest image
*/
gboolean
video_blend (GstBlendVideoFormatInfo * dest,
GstBlendVideoFormatInfo * src, guint x, guint y)
{
guint i, j;
guint8 alpha;
GetPutLine getputdest, getputsrc;
gint src_stride = src->width * 4;
guint8 *tmpdestline = g_malloc (sizeof (guint8) * (dest->width + 8) * 4);
guint8 *tmpsrcline = g_malloc (sizeof (guint8) * (dest->width + 8) * 4);
ensure_debug_category ();
if (!lookup_getput (&getputdest, dest->fmt))
goto failed;
if (!lookup_getput (&getputsrc, src->fmt))
goto failed;
if (gst_video_format_is_rgb (src->fmt) != gst_video_format_is_rgb (dest->fmt))
getputsrc.matrix = gst_video_format_is_rgb (src->fmt) ?
matrix_rgb_to_yuv : matrix_yuv_to_rgb;
/* adjust src pointers for negative sizes */
if (x < 0) {
src += -x * 4;
src->width -= -x;
x = 0;
}
if (y < 0) {
src += -y * src_stride;
src->height -= -y;
y = 0;
}
/* adjust width/height if the src is bigger than dest */
if (x + src->width > dest->width)
src->width = dest->width - x;
if (y + src->height > dest->height)
src->height = dest->height - y;
/* Mainloop doing the needed conversions, and blending */
for (i = y; i < y + src->height; i++) {
getputdest.getline (tmpdestline, dest, x, i);
getputsrc.getline (tmpsrcline, src, 0, (i - y));
getputsrc.matrix (tmpsrcline, src->width);
/* Here dest and src are both either in AYUV or ARGB
* TODO: Make the orc version working properly*/
for (j = 0; j < src->width * 4; j += 4) {
alpha = tmpsrcline[j];
BLEND (tmpdestline[j + 1], alpha, tmpsrcline[j + 1], tmpdestline[j + 1]);
BLEND (tmpdestline[j + 2], alpha, tmpsrcline[j + 2], tmpdestline[j + 2]);
BLEND (tmpdestline[j + 3], alpha, tmpsrcline[j + 3], tmpdestline[j + 3]);
}
/* FIXME
* #if G_BYTE_ORDER == LITTLE_ENDIAN
* orc_blend_little (tmpdestline, tmpsrcline, dest->width);
* #else
* orc_blend_big (tmpdestline, tmpsrcline, src->width);
* #endif
*/
getputdest.putline (dest, src, tmpdestline, x, i);
}
g_free (tmpdestline);
g_free (tmpsrcline);
return TRUE;
failed:
GST_WARNING ("Could not do the blending");
g_free (tmpdestline);
g_free (tmpsrcline);
return FALSE;
}
/* video_blend_format_info_init:
* @info: The #GstBlendVideoFormatInfo to initialize
* @pixels: The pixels data in @fmt format
* @height: The height of the image
* @width: the width of the image
* @fmt: The #GstVideoFormat of the image
*
* Initializes a GstBlendVideoFormatInfo.
* This function can be called on already initialized instances.
*/
void
video_blend_format_info_init (GstBlendVideoFormatInfo * info,
guint8 * pixels, guint height, guint width, GstVideoFormat fmt)
{
guint nb_component = gst_video_format_has_alpha (fmt) ? 4 : 3;
ensure_debug_category ();
GST_DEBUG
("Initializing video bleding info, height %i, width %i, fmt %i nb_component %i",
height, width, fmt, nb_component);
info->width = width;
info->height = height;
info->pixels = pixels;
info->fmt = fmt;
info->size = gst_video_format_get_size (fmt, height, width);
fill_planes (info);
}
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