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Removed old unused libs.

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Original commit message from CVS:
Removed old unused libs.
This commit is contained in:
Wim Taymans 2001-06-21 11:42:18 +00:00
parent 6e9aec0f26
commit 7b2c15eb02
16 changed files with 2 additions and 2177 deletions
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4
libs/Makefile.am
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@ -1,4 +1,4 @@
SUBDIRS = riff colorspace getbits putbits idct videoscale audio
SUBDIRS = riff getbits putbits idct audio
DIST_SUBDIRS = riff colorspace getbits putbits videoscale audio idct
DIST_SUBDIRS = riff getbits putbits audio idct

7
libs/colorspace/.gitignore vendored
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@ -1,7 +0,0 @@
Makefile
Makefile.in
*.o
*.lo
*.la
.deps
.libs

19
libs/colorspace/Makefile.am
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@ -1,19 +0,0 @@
filterdir = $(libdir)/gst
filter_LTLIBRARIES = libgstcolorspace.la
if HAVE_CPU_I386
ARCHSRCS = yuv2rgb_mmx16.s
else
ARCHSRCS =
endif
libgstcolorspace_la_SOURCES = gstcolorspace.c rgb2rgb.c yuv2rgb.c $(ARCHSRCS)
libgstcolorspaceincludedir = $(includedir)/gst/libs/gstcolorspace
libgstcolorspaceinclude_HEADERS = gstcolorspace.h
noinst_HEADERS = yuv2rgb.h
# FIXME is this needed?
CFLAGS += -O2 $(FOMIT_FRAME_POINTER) -finline-functions -ffast-math

78
libs/colorspace/gstcolorspace.c
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@ -1,78 +0,0 @@
/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
//#define DEBUG_ENABLED
#include <gst/gst.h>
#include <gstcolorspace.h>
extern GstColorSpaceConvertFunction gst_colorspace_rgb2rgb_get_converter(GstColorSpaceConverter *space, GstColorSpaceType srcspace,
GstColorSpaceType destspace);
extern GstColorSpaceConvertFunction gst_colorspace_yuv2rgb_get_converter(GstColorSpaceConverter *space, GstColorSpaceType srcspace,
GstColorSpaceType destspace);
extern GstColorSpaceConvertFunction gst_colorspace_rgb2yuv_get_converter(GstColorSpaceConverter *space, GstColorSpaceType srcspace,
GstColorSpaceType destspace);
extern GstColorSpaceConvertFunction gst_colorspace_yuv2yuv_get_converter(GstColorSpaceConverter *space, GstColorSpaceType srcspace,
GstColorSpaceType destspace);
GstColorSpaceConverter *gst_colorspace_converter_new(gint width, gint height, GstColorSpaceType srcspace,
GstColorSpaceType destspace, GdkVisual *destvisual)
{
GstColorSpaceConverter *new = g_malloc(sizeof(GstColorSpaceConverter));
new->width = width;
new->height = height;
new->srcspace = srcspace;
new->destspace = destspace;
new->visual = destvisual;
new->color_tables = NULL;
new->convert = NULL;
GST_DEBUG (0,"gst_colorspace: new\n");
if (GST_COLORSPACE_IS_RGB_TYPE(srcspace)) {
if (GST_COLORSPACE_IS_RGB_TYPE(destspace)) {
new->convert = gst_colorspace_rgb2rgb_get_converter(new, srcspace, destspace);
}
else {
//return gst_colorspace_rgb2yuv_get_converter(srcspace, destspace);
}
}
else if (GST_COLORSPACE_IS_YUV_TYPE(srcspace)) {
if (GST_COLORSPACE_IS_RGB_TYPE(destspace)) {
new->convert = gst_colorspace_yuv2rgb_get_converter(new, srcspace, destspace);
}
else {
//return gst_colorspace_yuv2yuv_get_converter(srcspace, destspace);
}
}
if (new->convert == NULL) {
g_print("gst_colorspace: conversion not implemented\n");
g_free(new);
new = NULL;
}
return new;
}
void gst_colorspace_destroy(GstColorSpaceConverter *space)
{
if (space->color_tables) g_free(space->color_tables);
g_free(space);
}

81
libs/colorspace/gstcolorspace.h
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@ -1,81 +0,0 @@
/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#ifndef __GST_COLORSPACE_H__
#define __GST_COLORSPACE_H__
#include <gdk/gdk.h>
#include <gst/gst.h>
#include "yuv2rgb.h"
typedef enum {
GST_COLORSPACE_RGB555,
GST_COLORSPACE_BGR555,
GST_COLORSPACE_RGB565,
GST_COLORSPACE_BGR565,
GST_COLORSPACE_RGB24,
GST_COLORSPACE_BGR24,
GST_COLORSPACE_RGB32,
GST_COLORSPACE_BGR32,
GST_COLORSPACE_YUV420,
GST_COLORSPACE_YUV420P,
GST_COLORSPACE_YUV422,
GST_COLORSPACE_YUV422P
} GstColorSpaceType;
#define GST_COLORSPACE_RGB_FIRST GST_COLORSPACE_RGB555
#define GST_COLORSPACE_RGB_LAST GST_COLORSPACE_BGR32
#define GST_COLORSPACE_YUV_FIRST GST_COLORSPACE_YUV420
#define GST_COLORSPACE_YUV_LAST GST_COLORSPACE_YUV422P
typedef struct _GstColorSpaceConverter GstColorSpaceConverter;
typedef void (*GstColorSpaceConvertFunction) (GstColorSpaceConverter *space, guchar *src, guchar *dest);
struct _GstColorSpaceConverter {
guint width;
guint height;
GstColorSpaceType srcspace;
GstColorSpaceType destspace;
GdkVisual *visual;
guint insize;
guint outsize;
/* private */
GstColorSpaceYUVTables *color_tables;
GstColorSpaceConvertFunction convert;
};
#define GST_COLORSPACE_IS_RGB_TYPE(type) ((type)>=GST_COLORSPACE_RGB_FIRST && \
(type)<=GST_COLORSPACE_RGB_LAST)
#define GST_COLORSPACE_IS_YUV_TYPE(type) ((type)>=GST_COLORSPACE_YUV_FIRST && \
(type)<=GST_COLORSPACE_YUV_LAST)
GstColorSpaceConverter *gst_colorspace_converter_new(gint width, gint height, GstColorSpaceType srcspace,
GstColorSpaceType destspace, GdkVisual *destvisual);
#define gst_colorspace_convert(converter, src, dest) \
(converter)->convert((converter), (src), (dest))
void gst_colorspace_destroy(GstColorSpaceConverter *space);
#endif /* __GST_COLORSPACE_H__ */

284
libs/colorspace/rgb2rgb.c
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@ -1,284 +0,0 @@
/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#include <string.h>
//#define DEBUG_ENABLED
#include "gstcolorspace.h"
static void gst_colorspace_rgb_to_rgb_identity(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_rgb24_to_bgr24(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_rgb24_to_rgb32(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_rgb32_to_bgr32(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_rgb555_to_rgb565(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_bgr565_to_rgb32(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_bgr24_to_bgr565(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_bgr32_to_bgr565(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
GstColorSpaceConvertFunction gst_colorspace_rgb2rgb_get_converter(GstColorSpaceConverter *space, GstColorSpaceType src, GstColorSpaceType dest) {
switch(src) {
case GST_COLORSPACE_RGB24:
space->insize = space->width*space->height*3;
switch(dest) {
case GST_COLORSPACE_RGB24:
space->outsize = space->width*space->height*3;
return gst_colorspace_rgb_to_rgb_identity;
case GST_COLORSPACE_BGR24:
space->outsize = space->width*space->height*3;
return gst_colorspace_rgb24_to_bgr24;
case GST_COLORSPACE_RGB32:
space->outsize = space->width*space->height*4;
return gst_colorspace_rgb24_to_rgb32;
default:
break;
}
break;
case GST_COLORSPACE_BGR24:
space->insize = space->width*space->height*3;
switch(dest) {
case GST_COLORSPACE_RGB24:
space->outsize = space->width*space->height*3;
return gst_colorspace_rgb24_to_bgr24;
case GST_COLORSPACE_BGR24:
space->outsize = space->width*space->height*3;
return gst_colorspace_rgb_to_rgb_identity;
case GST_COLORSPACE_BGR565:
space->outsize = space->width*space->height*2;
return gst_colorspace_bgr24_to_bgr565;
default:
break;
}
break;
case GST_COLORSPACE_RGB32:
space->insize = space->width*space->height*4;
switch(dest) {
case GST_COLORSPACE_BGR32:
space->outsize = space->width*space->height*4;
return gst_colorspace_rgb32_to_bgr32;
case GST_COLORSPACE_RGB32:
space->outsize = space->width*space->height*4;
return gst_colorspace_rgb_to_rgb_identity;
default:
break;
}
break;
case GST_COLORSPACE_BGR32:
space->insize = space->width*space->height*4;
switch(dest) {
case GST_COLORSPACE_RGB32:
space->outsize = space->width*space->height*4;
return gst_colorspace_rgb32_to_bgr32;
case GST_COLORSPACE_BGR32:
space->outsize = space->width*space->height*4;
return gst_colorspace_rgb_to_rgb_identity;
case GST_COLORSPACE_BGR565:
space->outsize = space->width*space->height*2;
return gst_colorspace_bgr32_to_bgr565;
case GST_COLORSPACE_RGB565:
space->outsize = space->width*space->height*2;
return gst_colorspace_bgr32_to_bgr565;
default:
break;
}
break;
case GST_COLORSPACE_BGR555:
space->insize = space->width*space->height*2;
switch(dest) {
case GST_COLORSPACE_RGB555:
space->outsize = space->width*space->height*2;
return gst_colorspace_rgb32_to_bgr32;
case GST_COLORSPACE_BGR565:
space->outsize = space->width*space->height*2;
return gst_colorspace_rgb555_to_rgb565;
default:
break;
}
break;
case GST_COLORSPACE_BGR565:
space->insize = space->width*space->height*2;
switch(dest) {
case GST_COLORSPACE_RGB32 :
space->outsize = space->width*space->height*4;
return gst_colorspace_bgr565_to_rgb32;
default:
break;
};
break;
default:
break;
}
g_print("gst_colorspace: conversion not supported %d %d\n", src, dest);
return NULL;
}
static void gst_colorspace_rgb_to_rgb_identity(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest)
{
memcpy(dest, src, space->outsize);
}
static void gst_colorspace_rgb24_to_bgr24(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest)
{
gint size;
gchar temp;
GST_DEBUG (0,"gst_colorspace_rgb24_to_bgr24 %p %p %d %d %d\n", src, dest, space->outsize, space->width, space->height);
size = space->outsize/3;
if (src == dest) {
while (size--) {
temp = src[0];
src[0] = src[2];
src[2] = temp;
src+=3;
}
}
else {
while (size--) {
*dest++ = src[2];
*dest++ = src[1];
*dest++ = src[0];
src+=3;
}
}
GST_DEBUG (0,"gst_colorspace_rgb24_to_bgr24 end\n");
}
static void gst_colorspace_bgr24_to_bgr565(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest)
{
gint size;
guint16 *destptr = (guint16 *)dest;
GST_DEBUG (0,"gst_colorspace_bgr24_to_bgr565 %p %p %d %d %d\n", src, dest, space->outsize, space->width, space->height);
size = space->outsize/2;
while (size--) {
*destptr++ = ((src[2]&0xF8)<<8)|((src[1]&0xFC)<<3)|((src[0]&0xF8)>>3);
src+=3;
}
GST_DEBUG (0,"gst_colorspace_bgr24_to_bgr565 end\n");
}
static void gst_colorspace_bgr32_to_bgr565(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest)
{
gint size;
guint16 *destptr = (guint16 *)dest;
GST_DEBUG (0,"gst_colorspace_bgr32_to_bgr565 %p %p %d %d %d\n", src, dest, space->outsize, space->width, space->height);
size = space->outsize/2;
while (size--) {
*destptr++ = ((src[2]&0xF8)<<8)|((src[1]&0xFC)<<3)|((src[0]&0xF8)>>3);
src+=4;
}
GST_DEBUG (0,"gst_colorspace_bgr32_to_bgr565 end\n");
}
static void gst_colorspace_rgb24_to_rgb32(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest)
{
gint size;
guint32 *destptr = (guint32 *)dest;
GST_DEBUG (0,"gst_colorspace_rgb24_to_rgb32 %p %p %d\n", src, dest, space->outsize);
size = space->outsize/4;
while (size--) {
*destptr++ = (src[0]<<16)|(src[1]<<8)|src[2];
src+=3;
}
GST_DEBUG (0,"gst_colorspace_rgb24_to_rgb32 end\n");
}
static void gst_colorspace_rgb32_to_bgr32(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest)
{
gint size;
gchar temp;
GST_DEBUG (0,"gst_colorspace_rgb32_to_bgr32 %p %p %d\n", src, dest, space->outsize);
size = space->outsize/4;
if (src == dest) {
while (size--) {
temp = src[0];
src[0] = src[2];
src[2] = temp;
src+=4;
}
}
else {
while (size--) {
*dest++ = src[2];
*dest++ = src[1];
*dest++ = src[0];
dest++;
src+=4;
}
}
GST_DEBUG (0,"gst_colorspace_rgb32_to_bgr32 end\n");
}
static void gst_colorspace_rgb555_to_rgb565(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest)
{
gint size;
guint32 *srcptr = (guint32 *) src;
guint32 *destptr = (guint32 *) dest;
GST_DEBUG (0,"gst_colorspace_rgb555_to_rgb565 %p %p %d\n", src, dest, space->outsize);
size = space->outsize/4;
if (src == dest) {
while (size--) {
*srcptr += (*srcptr++)&0xFFE0FFE0;
}
}
else {
while (size--) {
*destptr++ = *srcptr + ((*srcptr++)&0xFFE0FFE0);
}
}
}
static void gst_colorspace_bgr565_to_rgb32(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest)
{
gint size;
guint16 *srcptr = (guint16 *)src;
guint32 *destptr = (guint32 *)dest;
size = space->outsize >> 2;
g_assert (src != dest); /* todo */
while (size--) {
/* in detail I do this
red=(unsigned char)(*srcptr)&0x1f;
green=(unsigned char)(((*srcptr)&0x07E0)>>5);
blue=(unsigned char)(((*srcptr)&0xf800)>>11);
*destptr++ = (((guint32)blue) << 3)
| (((guint32)green) << (8+2))
| (((guint32)red) << (16+3));
*/
*destptr++ = (((*srcptr)&0xf800)>>8)|(((*srcptr)&0x07E0)<<5)|(((*srcptr)&0x1f)<<19);
srcptr++;
}
}

811
libs/colorspace/yuv2rgb.c
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@ -1,811 +0,0 @@
/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#include "config.h"
#include <math.h>
#include <stdlib.h>
//#define DEBUG_ENABLED
#include <gst/gst.h>
#include <gstcolorspace.h>
//#undef HAVE_LIBMMX
#ifdef HAVE_LIBMMX
#include "mmx.h"
#endif
#include "yuv2rgb.h"
static void gst_colorspace_yuv420P_to_bgr16_mmx(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_yuv420P_to_rgb32(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_yuv420P_to_bgr32(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_yuv420P_to_bgr32_mmx(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_yuv420P_to_rgb24(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_yuv420P_to_bgr24(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_yuv420P_to_rgb16(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_yuv420P_to_bgr16_mmx(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
static void gst_colorspace_yuv_to_rgb16(GstColorSpaceYUVTables *tables,
unsigned char *lum,
unsigned char *cr,
unsigned char *cb,
unsigned char *out,
int cols, int rows);
static void gst_colorspace_yuv_to_rgb24(GstColorSpaceYUVTables *tables,
unsigned char *lum,
unsigned char *cr,
unsigned char *cb,
unsigned char *out,
int cols, int rows);
static void gst_colorspace_yuv_to_rgb32(GstColorSpaceYUVTables *tables,
unsigned char *lum,
unsigned char *cr,
unsigned char *cb,
unsigned char *out,
int cols, int rows);
#ifdef HAVE_LIBMMX
static void gst_colorspace_yuv_to_bgr32_mmx(GstColorSpaceYUVTables *tables,
unsigned char *lum,
unsigned char *cr,
unsigned char *cb,
unsigned char *out,
int cols, int rows);
extern void gst_colorspace_yuv_to_bgr16_mmx(GstColorSpaceYUVTables *tables,
unsigned char *lum,
unsigned char *cr,
unsigned char *cb,
unsigned char *out,
int cols, int rows);
#endif
static GstColorSpaceYUVTables * gst_colorspace_init_yuv(long depth,
long red_mask, long green_mask, long blue_mask);
GstColorSpaceConvertFunction gst_colorspace_yuv2rgb_get_converter(GstColorSpaceConverter *space, GstColorSpaceType src, GstColorSpaceType dest) {
GST_DEBUG (0,"gst_colorspace_yuv2rgb_get_converter %d %d\n", src, dest);
switch(src) {
case GST_COLORSPACE_YUV420P:
space->insize = space->width*space->height+space->width*space->height/2;
switch(dest) {
case GST_COLORSPACE_BGR32:
space->color_tables = gst_colorspace_init_yuv(32, 0xFF0000, 0x00FF00, 0x0000FF);
space->outsize = space->width*space->height*4;
#ifdef HAVE_LIBMMX
return gst_colorspace_yuv420P_to_bgr32_mmx;
#else
return gst_colorspace_yuv420P_to_bgr32;
#endif
case GST_COLORSPACE_RGB32:
space->color_tables = gst_colorspace_init_yuv(32, 0x0000FF, 0x00FF00, 0xFF0000);
space->outsize = space->width*space->height*4;
return gst_colorspace_yuv420P_to_rgb32;
case GST_COLORSPACE_RGB24:
space->color_tables = gst_colorspace_init_yuv(24, 0x0000FF, 0x00FF00, 0xFF0000);
space->outsize = space->width*space->height*3;
return gst_colorspace_yuv420P_to_rgb24;
case GST_COLORSPACE_BGR24:
space->color_tables = gst_colorspace_init_yuv(24, 0xFF0000, 0x00FF00, 0x0000FF);
space->outsize = space->width*space->height*3;
return gst_colorspace_yuv420P_to_bgr24;
case GST_COLORSPACE_RGB555:
case GST_COLORSPACE_RGB565:
case GST_COLORSPACE_BGR555:
g_return_val_if_fail(space->visual != NULL, NULL);
space->color_tables = gst_colorspace_init_yuv(16, space->visual->red_mask, space->visual->green_mask, space->visual->blue_mask);
space->outsize = space->width*space->height*2;
return gst_colorspace_yuv420P_to_rgb16;
case GST_COLORSPACE_BGR565:
g_return_val_if_fail(space->visual != NULL, NULL);
space->color_tables = gst_colorspace_init_yuv(16, space->visual->red_mask, space->visual->green_mask, space->visual->blue_mask);
space->outsize = space->width*space->height*2;
#ifdef HAVE_LIBMMX
return gst_colorspace_yuv420P_to_bgr16_mmx;
#else
return gst_colorspace_yuv420P_to_rgb16;
#endif
default:
break;
}
break;
default:
break;
}
g_print("gst_colorspace_yuv2rgb not implemented\n");
return NULL;
}
static void gst_colorspace_yuv420P_to_bgr32(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest)
{
int size;
GST_DEBUG (0,"gst_colorspace_yuv420P_to_bgr32\n");
size = space->width * space->height;
gst_colorspace_yuv_to_rgb32(space->color_tables,
src, // Y component
src+size, // cr component
src+size+(size>>2), // cb component
dest,
space->height,
space->width);
}
static void gst_colorspace_yuv420P_to_rgb32(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest)
{
int size;
GST_DEBUG (0,"gst_colorspace_yuv420P_to_rgb32\n");
size = space->width * space->height;
gst_colorspace_yuv_to_rgb32(space->color_tables,
src, // Y component
src+size, // cr component
src+size+(size>>2), // cb component
dest,
space->height,
space->width);
}
static void gst_colorspace_yuv420P_to_bgr24(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest) {
int size;
GST_DEBUG (0,"gst_colorspace_yuv420P_to_bgr24\n");
size = space->width * space->height;
gst_colorspace_yuv_to_rgb24(space->color_tables,
src, // Y component
src+size, // cr component
src+size+(size>>2), // cb component
dest,
space->height,
space->width);
}
static void gst_colorspace_yuv420P_to_rgb24(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest) {
int size;
GST_DEBUG (0,"gst_colorspace_yuv420P_to_rgb24\n");
size = space->width * space->height;
gst_colorspace_yuv_to_rgb24(space->color_tables,
src, // Y component
src+size, // cr component
src+size+(size>>2), // cb component
dest,
space->height,
space->width);
}
static void gst_colorspace_yuv420P_to_rgb16(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest) {
int size;
GST_DEBUG (0,"gst_colorspace_yuv420P_to_rgb16\n");
size = space->width * space->height;
gst_colorspace_yuv_to_rgb16(space->color_tables,
src, // Y component
src+size, // cr component
src+size+(size>>2), // cb component
dest,
space->height,
space->width);
}
#ifdef HAVE_LIBMMX
static void gst_colorspace_yuv420P_to_bgr32_mmx(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest) {
int size;
GST_DEBUG (0,"gst_colorspace_yuv420P_to_rgb32_mmx\n");
size = space->width * space->height;
gst_colorspace_yuv_to_bgr32_mmx(NULL,
src, // Y component
src+size, // cr component
src+size+(size>>2), // cb component
dest,
space->height,
space->width);
}
static void gst_colorspace_yuv420P_to_bgr16_mmx(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest) {
int size;
GST_DEBUG (0,"gst_colorspace_yuv420P_to_bgr16_mmx \n");
size = space->width * space->height;
gst_colorspace_yuv_to_bgr16_mmx(NULL,
src, // Y component
src+size, // cr component
src+size+(size>>2), // cb component
dest,
space->height,
space->width);
GST_DEBUG (0,"gst_colorspace_yuv420P_to_bgr16_mmx done\n");
}
#endif
/*
* How many 1 bits are there in the longword.
* Low performance, do not call often.
*/
static int
number_of_bits_set(a)
unsigned long a;
{
if(!a) return 0;
if(a & 1) return 1 + number_of_bits_set(a >> 1);
return(number_of_bits_set(a >> 1));
}
/*
* Shift the 0s in the least significant end out of the longword.
* Low performance, do not call often.
*/
static unsigned long
shifted_down(a)
unsigned long a;
{
if(!a) return 0;
if(a & 1) return a;
return a >> 1;
}
/*
* How many 0 bits are there at most significant end of longword.
* Low performance, do not call often.
*/
static int
free_bits_at_top(a)
unsigned long a;
{
/* assume char is 8 bits */
if(!a) return sizeof(unsigned long) * 8;
/* assume twos complement */
if(((long)a) < 0l) return 0;
return 1 + free_bits_at_top ( a << 1);
}
/*
* How many 0 bits are there at least significant end of longword.
* Low performance, do not call often.
*/
static int
free_bits_at_bottom(a)
unsigned long a;
{
/* assume char is 8 bits */
if(!a) return sizeof(unsigned long) * 8;
if(((long)a) & 1l) return 0;
return 1 + free_bits_at_bottom ( a >> 1);
}
/*
*--------------------------------------------------------------
*
* InitColor16Dither --
*
* To get rid of the multiply and other conversions in color
* dither, we use a lookup table.
*
* Results:
* None.
*
* Side effects:
* The lookup tables are initialized.
*
*--------------------------------------------------------------
*/
static GstColorSpaceYUVTables *
gst_colorspace_init_yuv(long depth, long red_mask, long green_mask, long blue_mask)
{
int CR, CB, i;
int *L_tab, *Cr_r_tab, *Cr_g_tab, *Cb_g_tab, *Cb_b_tab;
long *r_2_pix_alloc;
long *g_2_pix_alloc;
long *b_2_pix_alloc;
GstColorSpaceYUVTables *tables = g_malloc(sizeof(GstColorSpaceYUVTables));
L_tab = tables->L_tab = (int *)malloc(256*sizeof(int));
Cr_r_tab = tables->Cr_r_tab = (int *)malloc(256*sizeof(int));
Cr_g_tab = tables->Cr_g_tab = (int *)malloc(256*sizeof(int));
Cb_g_tab = tables->Cb_g_tab = (int *)malloc(256*sizeof(int));
Cb_b_tab = tables->Cb_b_tab = (int *)malloc(256*sizeof(int));
r_2_pix_alloc = (long *)malloc(768*sizeof(long));
g_2_pix_alloc = (long *)malloc(768*sizeof(long));
b_2_pix_alloc = (long *)malloc(768*sizeof(long));
if (L_tab == NULL ||
Cr_r_tab == NULL ||
Cr_g_tab == NULL ||
Cb_g_tab == NULL ||
Cb_b_tab == NULL ||
r_2_pix_alloc == NULL ||
g_2_pix_alloc == NULL ||
b_2_pix_alloc == NULL) {
fprintf(stderr, "Could not get enough memory in InitColorDither\n");
exit(1);
}
for (i=0; i<256; i++) {
L_tab[i] = i;
/*
if (gammaCorrectFlag) {
L_tab[i] = GAMMA_CORRECTION(i);
}
*/
CB = CR = i;
/*
if (chromaCorrectFlag) {
CB -= 128;
CB = CHROMA_CORRECTION128(CB);
CR -= 128;
CR = CHROMA_CORRECTION128(CR);
}
else
*/
{
CB -= 128; CR -= 128;
}
Cr_r_tab[i] = (0.419/0.299) * CR;
Cr_g_tab[i] = -(0.299/0.419) * CR;
Cb_g_tab[i] = -(0.114/0.331) * CB;
Cb_b_tab[i] = (0.587/0.331) * CB;
}
/*
* Set up entries 0-255 in rgb-to-pixel value tables.
*/
for (i = 0; i < 256; i++) {
r_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(red_mask));
r_2_pix_alloc[i + 256] <<= free_bits_at_bottom(red_mask);
g_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(green_mask));
g_2_pix_alloc[i + 256] <<= free_bits_at_bottom(green_mask);
b_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(blue_mask));
b_2_pix_alloc[i + 256] <<= free_bits_at_bottom(blue_mask);
/*
* If we have 16-bit output depth, then we double the value
* in the top word. This means that we can write out both
* pixels in the pixel doubling mode with one op. It is
* harmless in the normal case as storing a 32-bit value
* through a short pointer will lose the top bits anyway.
* A similar optimisation for Alpha for 64 bit has been
* prepared for, but is not yet implemented.
*/
if(!(depth == 32) && !(depth == 24)) {
r_2_pix_alloc[i + 256] |= (r_2_pix_alloc[i + 256]) << 16;
g_2_pix_alloc[i + 256] |= (g_2_pix_alloc[i + 256]) << 16;
b_2_pix_alloc[i + 256] |= (b_2_pix_alloc[i + 256]) << 16;
}
#ifdef SIXTYFOUR_BIT
if(depth == 32) {
r_2_pix_alloc[i + 256] |= (r_2_pix_alloc[i + 256]) << 32;
g_2_pix_alloc[i + 256] |= (g_2_pix_alloc[i + 256]) << 32;
b_2_pix_alloc[i + 256] |= (b_2_pix_alloc[i + 256]) << 32;
}
#endif
}
/*
* Spread out the values we have to the rest of the array so that
* we do not need to check for overflow.
*/
for (i = 0; i < 256; i++) {
r_2_pix_alloc[i] = r_2_pix_alloc[256];
r_2_pix_alloc[i+ 512] = r_2_pix_alloc[511];
g_2_pix_alloc[i] = g_2_pix_alloc[256];
g_2_pix_alloc[i+ 512] = g_2_pix_alloc[511];
b_2_pix_alloc[i] = b_2_pix_alloc[256];
b_2_pix_alloc[i+ 512] = b_2_pix_alloc[511];
}
tables->r_2_pix = r_2_pix_alloc + 256;
tables->g_2_pix = g_2_pix_alloc + 256;
tables->b_2_pix = b_2_pix_alloc + 256;
return tables;
}
/*
*--------------------------------------------------------------
*
* Color16DitherImage --
*
* Converts image into 16 bit color.
*
* Results:
* None.
*
* Side effects:
* None.
*
*--------------------------------------------------------------
*/
static void
gst_colorspace_yuv_to_rgb16(tables, lum, cb, cr, out, rows, cols)
GstColorSpaceYUVTables *tables;
unsigned char *lum;
unsigned char *cr;
unsigned char *cb;
unsigned char *out;
int cols, rows;
{
int L, CR, CB;
unsigned short *row1, *row2;
unsigned char *lum2;
int x, y;
int cr_r;
int crb_g;
int cb_b;
int cols_2 = cols>>1;
row1 = (unsigned short *)out;
row2 = row1 + cols;
lum2 = lum + cols;
for (y=rows>>1; y; y--) {
for (x=cols_2; x; x--) {
CR = *cr++;
CB = *cb++;
cr_r = tables->Cr_r_tab[CR];
crb_g = tables->Cr_g_tab[CR] + tables->Cb_g_tab[CB];
cb_b = tables->Cb_b_tab[CB];
L = tables->L_tab[(int) *lum++];
*row1++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
L = tables->L_tab[(int) *lum++];
*row1++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
/*
* Now, do second row.
*/
L = tables->L_tab[(int) *lum2++];
*row2++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
L = tables->L_tab[(int) *lum2++];
*row2++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
}
/*
* These values are at the start of the next line, (due
* to the ++'s above),but they need to be at the start
* of the line after that.
*/
lum = lum2;
row1 = row2;
lum2 += cols;
row2 += cols;
}
}
static void
gst_colorspace_yuv_to_rgb24(tables, lum, cb, cr, out, rows, cols)
GstColorSpaceYUVTables *tables;
unsigned char *lum;
unsigned char *cr;
unsigned char *cb;
unsigned char *out;
int cols, rows;
{
int L, CR, CB;
unsigned char *row1, *row2;
unsigned char *lum2;
int x, y;
int cr_r;
int crb_g;
int cb_b;
int cols_2 = cols>>1;
int cols_3 = cols*3;
unsigned char pixels[4];
row1 = out;
row2 = row1 + cols_3;
lum2 = lum + cols;
for (y=rows>>1; y; y--) {
for (x=cols_2; x; x--) {
CR = *cr++;
CB = *cb++;
cr_r = tables->Cr_r_tab[CR];
crb_g = tables->Cr_g_tab[CR] + tables->Cb_g_tab[CB];
cb_b = tables->Cb_b_tab[CB];
L = tables->L_tab[(int) *lum++];
((int *)pixels)[0] = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
*row1++ = pixels[0]; *row1++ = pixels[1]; *row1++ = pixels[2];
L = tables->L_tab[(int) *lum++];
((int *)pixels)[0] = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
*row1++ = pixels[0]; *row1++ = pixels[1]; *row1++ = pixels[2];
/*
* Now, do second row.
*/
L = tables->L_tab [(int) *lum2++];
((int *)pixels)[0] = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
*row2++ = pixels[0]; *row2++ = pixels[1]; *row2++ = pixels[2];
L = tables->L_tab [(int) *lum2++];
((int *)pixels)[0] = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
*row2++ = pixels[0]; *row2++ = pixels[1]; *row2++ = pixels[2];
}
lum = lum2;
row1 = row2;
lum2 += cols;
row2 += cols_3;
}
}
/*
*--------------------------------------------------------------
*
* Color32DitherImage --
*
* Converts image into 32 bit color (or 24-bit non-packed).
*
* Results:
* None.
*
* Side effects:
* None.
*
*--------------------------------------------------------------
*/
/*
* This is a copysoft version of the function above with ints instead
* of shorts to cause a 4-byte pixel size
*/
static void
gst_colorspace_yuv_to_rgb32(tables, lum, cb, cr, out, rows, cols)
GstColorSpaceYUVTables *tables;
unsigned char *lum;
unsigned char *cr;
unsigned char *cb;
unsigned char *out;
int cols, rows;
{
int L, CR, CB;
unsigned int *row1, *row2;
unsigned char *lum2;
int x, y;
int cr_r;
int crb_g;
int cb_b;
int cols_2 = cols>>1;
row1 = (guint32 *)out;
row2 = row1 + cols;
lum2 = lum + cols;
for (y=rows>>1; y; y--) {
for (x=cols_2; x; x--) {
CR = *cr++;
CB = *cb++;
cr_r = tables->Cr_r_tab[CR];
crb_g = tables->Cr_g_tab[CR] + tables->Cb_g_tab[CB];
cb_b = tables->Cb_b_tab[CB];
L = tables->L_tab[(int) *lum++];
*row1++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
L = tables->L_tab[(int) *lum++];
*row1++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
/*
* Now, do second row.
*/
L = tables->L_tab [(int) *lum2++];
*row2++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
L = tables->L_tab [(int) *lum2++];
*row2++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
}
lum = lum2;
row1 = row2;
lum2 += cols;
row2 += cols;
}
}
#ifdef HAVE_LIBMMX
static mmx_t MMX_80w = (mmx_t)(long long)0x0080008000800080LL; //dd 00080 0080h, 000800080h
static mmx_t MMX_00FFw = (mmx_t)(long long)0x00ff00ff00ff00ffLL; //dd 000FF 00FFh, 000FF00FFh
static mmx_t MMX_FF00w = (mmx_t)(long long)0xff00ff00ff00ff00LL; //dd 000FF 00FFh, 000FF00FFh
static mmx_t MMX32_Vredcoeff = (mmx_t)(long long)0x0059005900590059LL;
static mmx_t MMX32_Ubluecoeff = (mmx_t)(long long)0x0072007200720072LL;
static mmx_t MMX32_Ugrncoeff = (mmx_t)(long long)0xffeaffeaffeaffeaLL;
static mmx_t MMX32_Vgrncoeff = (mmx_t)(long long)0xffd2ffd2ffd2ffd2LL;
static void
gst_colorspace_yuv_to_bgr32_mmx(tables, lum, cr, cb, out, rows, cols)
GstColorSpaceYUVTables *tables;
unsigned char *lum;
unsigned char *cr;
unsigned char *cb;
unsigned char *out;
int cols, rows;
{
guint32 *row1 = (guint32 *)out; // 32 bit target
int cols4 = cols>>2;
int y, x;
for (y=rows>>1; y; y--) {
for (x=cols4; x; x--) {
// create Cr (result in mm1)
movd_m2r(*(mmx_t *)cb, mm1); // 0 0 0 0 v3 v2 v1 v0
pxor_r2r(mm7, mm7); // 00 00 00 00 00 00 00 00
movd_m2r(*(mmx_t *)lum, mm2); // 0 0 0 0 l3 l2 l1 l0
punpcklbw_r2r(mm7, mm1); // 0 v3 0 v2 00 v1 00 v0
punpckldq_r2r(mm1, mm1); // 00 v1 00 v0 00 v1 00 v0
psubw_m2r(MMX_80w, mm1); // mm1-128:r1 r1 r0 r0 r1 r1 r0 r0
// create Cr_g (result in mm0)
movq_r2r(mm1, mm0); // r1 r1 r0 r0 r1 r1 r0 r0
pmullw_m2r(MMX32_Vgrncoeff, mm0); // red*-46dec=0.7136*64
pmullw_m2r(MMX32_Vredcoeff, mm1); // red*89dec=1.4013*64
psraw_i2r(6, mm0); // red=red/64
psraw_i2r(6, mm1); // red=red/64
// create L1 L2 (result in mm2,mm4)
// L2=lum+cols
movq_m2r(*(mmx_t *)(lum+cols),mm3); // 0 0 0 0 L3 L2 L1 L0
punpckldq_r2r(mm3, mm2); // L3 L2 L1 L0 l3 l2 l1 l0
movq_r2r(mm2, mm4); // L3 L2 L1 L0 l3 l2 l1 l0
pand_m2r(MMX_FF00w, mm2); // L3 0 L1 0 l3 0 l1 0
pand_m2r(MMX_00FFw, mm4); // 0 L2 0 L0 0 l2 0 l0
psrlw_i2r(8, mm2); // 0 L3 0 L1 0 l3 0 l1
// create R (result in mm6)
movq_r2r(mm2, mm5); // 0 L3 0 L1 0 l3 0 l1
movq_r2r(mm4, mm6); // 0 L2 0 L0 0 l2 0 l0
paddsw_r2r(mm1, mm5); // lum1+red:x R3 x R1 x r3 x r1
paddsw_r2r(mm1, mm6); // lum1+red:x R2 x R0 x r2 x r0
packuswb_r2r(mm5, mm5); // R3 R1 r3 r1 R3 R1 r3 r1
packuswb_r2r(mm6, mm6); // R2 R0 r2 r0 R2 R0 r2 r0
pxor_r2r(mm7, mm7); // 00 00 00 00 00 00 00 00
punpcklbw_r2r(mm5, mm6); // R3 R2 R1 R0 r3 r2 r1 r0
// create Cb (result in mm1)
movd_m2r(*(mmx_t *)cr, mm1); // 0 0 0 0 u3 u2 u1 u0
punpcklbw_r2r(mm7, mm1); // 0 u3 0 u2 00 u1 00 u0
punpckldq_r2r(mm1, mm1); // 00 u1 00 u0 00 u1 00 u0
psubw_m2r(MMX_80w, mm1); // mm1-128:u1 u1 u0 u0 u1 u1 u0 u0
// create Cb_g (result in mm5)
movq_r2r(mm1, mm5); // u1 u1 u0 u0 u1 u1 u0 u0
pmullw_m2r(MMX32_Ugrncoeff, mm5); // blue*-109dec=1.7129*64
pmullw_m2r(MMX32_Ubluecoeff, mm1); // blue*114dec=1.78125*64
psraw_i2r(6, mm5); // blue=red/64
psraw_i2r(6, mm1); // blue=blue/64
// create G (result in mm7)
movq_r2r(mm2, mm3); // 0 L3 0 L1 0 l3 0 l1
movq_r2r(mm4, mm7); // 0 L2 0 L0 0 l2 0 l1
paddsw_r2r(mm5, mm3); // lum1+Cb_g:x G3t x G1t x g3t x g1t
paddsw_r2r(mm5, mm7); // lum1+Cb_g:x G2t x G0t x g2t x g0t
paddsw_r2r(mm0, mm3); // lum1+Cr_g:x G3 x G1 x g3 x g1
paddsw_r2r(mm0, mm7); // lum1+blue:x G2 x G0 x g2 x g0
packuswb_r2r(mm3, mm3); // G3 G1 g3 g1 G3 G1 g3 g1
packuswb_r2r(mm7, mm7); // G2 G0 g2 g0 G2 G0 g2 g0
punpcklbw_r2r(mm3, mm7); // G3 G2 G1 G0 g3 g2 g1 g0
// create B (result in mm5)
movq_r2r(mm2, mm3); // 0 L3 0 L1 0 l3 0 l1
movq_r2r(mm4, mm5); // 0 L2 0 L0 0 l2 0 l1
paddsw_r2r(mm1, mm3); // lum1+blue:x B3 x B1 x b3 x b1
paddsw_r2r(mm1, mm5); // lum1+blue:x B2 x B0 x b2 x b0
packuswb_r2r(mm3, mm3); // B3 B1 b3 b1 B3 B1 b3 b1
packuswb_r2r(mm5, mm5); // B2 B0 b2 b0 B2 B0 b2 b0
punpcklbw_r2r(mm3, mm5); // B3 B2 B1 B0 b3 b2 b1 b0
// fill destination row1 (needed are mm6=Rr,mm7=Gg,mm5=Bb)
pxor_r2r(mm2, mm2); // 0 0 0 0 0 0 0 0
pxor_r2r(mm4, mm4); // 0 0 0 0 0 0 0 0
movq_r2r(mm6, mm1); // R3 R2 R1 R0 r3 r2 r1 r0
movq_r2r(mm5, mm3); // B3 B2 B1 B0 b3 b2 b1 b0
// process lower lum
punpcklbw_r2r(mm4, mm1); // 0 r3 0 r2 0 r1 0 r0
punpcklbw_r2r(mm4, mm3); // 0 b3 0 b2 0 b1 0 b0
movq_r2r(mm1, mm2); // 0 r3 0 r2 0 r1 0 r0
movq_r2r(mm3, mm0); // 0 b3 0 b2 0 b1 0 b0
punpcklwd_r2r(mm1, mm3); // 0 r1 0 b1 0 r0 0 b0
punpckhwd_r2r(mm2, mm0); // 0 r3 0 b3 0 r2 0 b2
pxor_r2r(mm2, mm2); // 0 0 0 0 0 0 0 0
movq_r2r(mm7, mm1); // G3 G2 G1 G0 g3 g2 g1 g0
punpcklbw_r2r(mm1, mm2); // g3 0 g2 0 g1 0 g0 0
punpcklwd_r2r(mm4, mm2); // 0 0 g1 0 0 0 g0 0
por_r2r(mm3, mm2); // 0 r1 g1 b1 0 r0 g0 b0
movq_r2m(mm2, *(mmx_t *)row1); // wrote out ! row1
pxor_r2r(mm2, mm2); // 0 0 0 0 0 0 0 0
punpcklbw_r2r(mm1, mm4); // g3 0 g2 0 g1 0 g0 0
punpckhwd_r2r(mm2, mm4); // 0 0 g3 0 0 0 g2 0
por_r2r(mm0, mm4); // 0 r3 g3 b3 0 r2 g2 b2
movq_r2m(mm4, *(mmx_t *)(row1+2)); // wrote out ! row1
// fill destination row2 (needed are mm6=Rr,mm7=Gg,mm5=Bb)
// this can be done "destructive"
pxor_r2r(mm2, mm2); // 0 0 0 0 0 0 0 0
punpckhbw_r2r(mm2, mm6); // 0 R3 0 R2 0 R1 0 R0
punpckhbw_r2r(mm1, mm5); // G3 B3 G2 B2 G1 B1 G0 B0
movq_r2r(mm5, mm1); // G3 B3 G2 B2 G1 B1 G0 B0
punpcklwd_r2r(mm6, mm1); // 0 R1 G1 B1 0 R0 G0 B0
movq_r2m(mm1, *(mmx_t *)(row1+cols)); // wrote out ! row2
punpckhwd_r2r(mm6, mm5); // 0 R3 G3 B3 0 R2 G2 B2
movq_r2m(mm5, *(mmx_t *)(row1+cols+2)); // wrote out ! row2
lum+=4;
cr+=2;
cb+=2;
row1 +=4;
}
lum += cols;
row1 += cols;
}
emms();
}
#endif

68
libs/colorspace/yuv2rgb.h
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@ -1,68 +0,0 @@
/*
* Copyright (c) 1995 The Regents of the University of California.
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose, without fee, and without written agreement is
* hereby granted, provided that the above copyright notice and the following
* two paragraphs appear in all copies of this software.
*
* IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
* OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
* CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*/
#ifndef __YUV2RGB_H__
#define __YUV2RGB_H__
typedef struct _GstColorSpaceYUVTables GstColorSpaceYUVTables;
struct _GstColorSpaceYUVTables {
int gammaCorrectFlag;
double gammaCorrect;
int chromaCorrectFlag;
double chromaCorrect;
int *L_tab, *Cr_r_tab, *Cr_g_tab, *Cb_g_tab, *Cb_b_tab;
/*
* We define tables that convert a color value between -256 and 512
* into the R, G and B parts of the pixel. The normal range is 0-255.
**/
long *r_2_pix;
long *g_2_pix;
long *b_2_pix;
};
#define CB_BASE 1
#define CR_BASE (CB_BASE*CB_RANGE)
#define LUM_BASE (CR_BASE*CR_RANGE)
#define Min(x,y) (((x) < (y)) ? (x) : (y))
#define Max(x,y) (((x) > (y)) ? (x) : (y))
#define GAMMA_CORRECTION(x) ((int)(pow((x) / 255.0, 1.0 / gammaCorrect) * 255.0))
#define CHROMA_CORRECTION256(x) ((x) >= 128 \
? 128 + Min(127, (int)(((x) - 128.0) * chromaCorrect)) \
: 128 - Min(128, (int)((128.0 - (x)) * chromaCorrect)))
#define CHROMA_CORRECTION128(x) ((x) >= 0 \
? Min(127, (int)(((x) * chromaCorrect))) \
: Max(-128, (int)(((x) * chromaCorrect))))
#define CHROMA_CORRECTION256D(x) ((x) >= 128 \
? 128.0 + Min(127.0, (((x) - 128.0) * chromaCorrect)) \
: 128.0 - Min(128.0, (((128.0 - (x)) * chromaCorrect))))
#define CHROMA_CORRECTION128D(x) ((x) >= 0 \
? Min(127.0, ((x) * chromaCorrect)) \
: Max(-128.0, ((x) * chromaCorrect)))
#endif

188
libs/colorspace/yuv2rgb_mmx16.s
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@ -1,188 +0,0 @@
.globl mmx_80w
.data
.align 4
.type mmx_80w,@object
.size mmx_80w,8
mmx_80w:
.long 8388736
.long 8388736
.globl mmx_10w
.align 4
.type mmx_10w,@object
.size mmx_10w,8
mmx_10w:
.long 269488144
.long 269488144
.globl mmx_00ffw
.align 4
.type mmx_00ffw,@object
.size mmx_00ffw,8
mmx_00ffw:
.long 16711935
.long 16711935
.globl mmx_Y_coeff
.align 4
.type mmx_Y_coeff,@object
.size mmx_Y_coeff,8
mmx_Y_coeff:
.long 624895295
.long 624895295
.globl mmx_U_green
.align 4
.type mmx_U_green,@object
.size mmx_U_green,8
mmx_U_green:
.long -209849475
.long -209849475
.globl mmx_U_blue
.align 4
.type mmx_U_blue,@object
.size mmx_U_blue,8
mmx_U_blue:
.long 1083392147
.long 1083392147
.globl mmx_V_red
.align 4
.type mmx_V_red,@object
.size mmx_V_red,8
mmx_V_red:
.long 856830738
.long 856830738
.globl mmx_V_green
.align 4
.type mmx_V_green,@object
.size mmx_V_green,8
mmx_V_green:
.long -436410884
.long -436410884
.globl mmx_redmask
.align 4
.type mmx_redmask,@object
.size mmx_redmask,8
mmx_redmask:
.long -117901064
.long -117901064
.globl mmx_grnmask
.align 4
.type mmx_grnmask,@object
.size mmx_grnmask,8
mmx_grnmask:
.long -50529028
.long -50529028
.text
.align 4
.globl gst_colorspace_yuv_to_bgr16_mmx
.type gst_colorspace_yuv_to_bgr16_mmx,@function
gst_colorspace_yuv_to_bgr16_mmx:
subl $8,%esp
pushl %ebp
pushl %edi
pushl %esi
movl 28(%esp),%edi
movl 32(%esp),%ecx
movl 36(%esp),%edx
movl $1,%ebp
movl 48(%esp),%esi
sarl $1,%esi
movl %esi,16(%esp)
pxor %mm4, %mm4 # zero mm4
movl %esi,12(%esp)
sarl $2,12(%esp)
movl 40(%esp),%esi
.p2align 4,,7
.L68:
movd (%ecx), %mm0 # Load 4 Cb 00 00 00 00 00 u3 u2 u1 u0
movd (%edx), %mm1 # Load 4 Cr 00 00 00 00 00 v2 v1 v0
movq (%edi), %mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
movl 12(%esp),%eax
.p2align 4,,7
.L74:
punpcklbw %mm4, %mm0 # scatter 4 Cb 00 u3 00 u2 00 u1 00 u0
punpcklbw %mm4, %mm1 # scatter 4 Cr 00 v3 00 v2 00 v1 00 v0
psubsw mmx_80w, %mm0 # Cb -= 128
psubsw mmx_80w, %mm1 # Cr -= 128
psllw $3, %mm0 # Promote precision
psllw $3, %mm1 # Promote precision
movq %mm0, %mm2 # Copy 4 Cb 00 u3 00 u2 00 u1 00 u0
movq %mm1, %mm3 # Copy 4 Cr 00 v3 00 v2 00 v1 00 v0
pmulhw mmx_U_green, %mm2 # Mul Cb with green coeff -> Cb green
pmulhw mmx_V_green, %mm3 # Mul Cr with green coeff -> Cr green
pmulhw mmx_U_blue, %mm0 # Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0
pmulhw mmx_V_red, %mm1 # Mul Cr -> Cred 00 r3 00 r2 00 r1 00 r0
paddsw %mm3, %mm2 # Cb green + Cr green -> Cgreen
psubusb mmx_10w, %mm6 # Y -= 16
movq %mm6, %mm7 # Copy 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
pand mmx_00ffw, %mm6 # get Y even 00 Y6 00 Y4 00 Y2 00 Y0
psrlw $8, %mm7 # get Y odd 00 Y7 00 Y5 00 Y3 00 Y1
psllw $3, %mm6 # Promote precision
psllw $3, %mm7 # Promote precision
pmulhw mmx_Y_coeff, %mm6 # Mul 4 Y even 00 y6 00 y4 00 y2 00 y0
pmulhw mmx_Y_coeff, %mm7 # Mul 4 Y odd 00 y7 00 y5 00 y3 00 y1
movq %mm0, %mm3 # Copy Cblue
movq %mm1, %mm4 # Copy Cred
movq %mm2, %mm5 # Copy Cgreen
paddsw %mm6, %mm0 # Y even + Cblue 00 B6 00 B4 00 B2 00 B0
paddsw %mm7, %mm3 # Y odd + Cblue 00 B7 00 B5 00 B3 00 B1
paddsw %mm6, %mm1 # Y even + Cred 00 R6 00 R4 00 R2 00 R0
paddsw %mm7, %mm4 # Y odd + Cred 00 R7 00 R5 00 R3 00 R1
paddsw %mm6, %mm2 # Y even + Cgreen 00 G6 00 G4 00 G2 00 G0
paddsw %mm7, %mm5 # Y odd + Cgreen 00 G7 00 G5 00 G3 00 G1
packuswb %mm0, %mm0 # B6 B4 B2 B0 | B6 B4 B2 B0
packuswb %mm1, %mm1 # R6 R4 R2 R0 | R6 R4 R2 R0
packuswb %mm2, %mm2 # G6 G4 G2 G0 | G6 G4 G2 G0
packuswb %mm3, %mm3 # B7 B5 B3 B1 | B7 B5 B3 B1
packuswb %mm4, %mm4 # R7 R5 R3 R1 | R7 R5 R3 R1
packuswb %mm5, %mm5 # G7 G5 G3 G1 | G7 G5 G3 G1
punpcklbw %mm3, %mm0 # B7 B6 B5 B4 B3 B2 B1 B0
punpcklbw %mm4, %mm1 # R7 R6 R5 R4 R3 R2 R1 R0
punpcklbw %mm5, %mm2 # G7 G6 G5 G4 G3 G2 G1 G0
pand mmx_redmask, %mm0 # b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0
pand mmx_grnmask, %mm2 # g7g6g5g4 g3g2_0_0 g7g6g5g4 g3g2_0_0
pand mmx_redmask, %mm1 # r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0
psrlw $3,%mm0 #0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3
pxor %mm4, %mm4 # zero mm4
movq %mm0, %mm5 # Copy B7-B0
movq %mm2, %mm7 # Copy G7-G0
punpcklbw %mm4, %mm2 # 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0
punpcklbw %mm1, %mm0 # r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3
psllw $3,%mm2 # 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0
por %mm2, %mm0 # r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3
movq 8(%edi), %mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
movq %mm0, (%esi) # store pixel 0-3
punpckhbw %mm4, %mm7 # 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0
punpckhbw %mm1, %mm5 # r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3
psllw $3,%mm7 # 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0
movd 4(%ecx), %mm0 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0
por %mm7, %mm5 # r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3
movd 4(%edx), %mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0
movq %mm5, 8(%esi) # store pixel 4-7
addl $8,%edi
addl $4,%ecx
addl $4,%edx
addl $16,%esi
decl %eax
jnz .L74
.L72:
xorl $1,%ebp
jne .L76
subl 16(%esp),%ecx
subl 16(%esp),%edx
.L76:
subl $1,44(%esp)
jnz .L68
emms
popl %esi
popl %edi
popl %ebp
addl $8,%esp
ret

7
libs/videoscale/.gitignore vendored
View file

@ -1,7 +0,0 @@
Makefile
Makefile.in
*.o
*.lo
*.la
.deps
.libs

19
libs/videoscale/Makefile.am
View file

@ -1,19 +0,0 @@
filterdir = $(libdir)/gst
filter_LTLIBRARIES = libgstvideoscale.la
if HAVE_CPU_I386
SCALER = gstscale_x86.c gstscale_x86_asm.s
else
SCALER =
endif
libgstvideoscale_la_SOURCES = gstvideoscale.c $(SCALER)
libgstvideoscaleincludedir = $(includedir)/gst/libs/gstvideoscale
libgstvideoscaleinclude_HEADERS = gstvideoscale.h
noinst_HEADERS = gstscale_x86.h
#CFLAGS += -S -O1 $(FOMIT_FRAME_POINTER) -funroll-all-loops -finline-functions -ffast-math
CFLAGS = $(GLIB_CFLAGS) $(GTK_CFLAGS) $(GST_CFLAGS) $(XML_CFLAGS) -O5 -fomit-frame-pointer -ffast-math

80
libs/videoscale/gstscale_x86.c
View file

@ -1,80 +0,0 @@
/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
//#define DEBUG_ENABLED
#include "gstvideoscale.h"
/* scalers */
void gst_videoscale_generate_rowbytes_x86 (unsigned char *copy_row, int src_w, int dst_w, int bpp);
void gst_videoscale_scale_nearest_x86 (GstVideoScale *scale,
unsigned char *src, unsigned char *dest,
int sw, int sh, int dw, int dh);
#define PREFIX16 0x66
#define STORE_BYTE 0xAA
#define STORE_WORD 0xAB
#define LOAD_BYTE 0xAC
#define LOAD_WORD 0xAD
#define RETURN 0xC3
void
gst_videoscale_generate_rowbytes_x86 (unsigned char *copy_row, int src_w, int dst_w, int bpp)
{
int i;
int pos, inc;
unsigned char *eip;
unsigned char load, store;
GST_DEBUG (0,"videoscale: setup scaling %p\n", copy_row);
switch (bpp) {
case 1:
load = LOAD_BYTE;
store = STORE_BYTE;
break;
case 2:
case 4:
load = LOAD_WORD;
store = STORE_WORD;
break;
default:
return;
}
pos = 0x10000;
inc = (src_w << 16) / dst_w;
eip = copy_row;
for ( i=0; i<dst_w; ++i ) {
while ( pos >= 0x10000L ) {
if ( bpp == 2 ) {
*eip++ = PREFIX16;
}
*eip++ = load;
pos -= 0x10000L;
}
if ( bpp == 2 ) {
*eip++ = PREFIX16;
}
*eip++ = store;
pos += inc;
}
*eip++ = RETURN;
GST_DEBUG (0,"scaler start/end %p %p %p\n", copy_row, eip, (void*)(eip-copy_row));
}

30
libs/videoscale/gstscale_x86.h
View file

@ -1,30 +0,0 @@
/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#ifndef __GST_VIDEOSCALE__X86_H__
#define __GST_VIDEOSCALE__X86_H__
/* scalers */
void gst_videoscale_generate_rowbytes_x86 (unsigned char *copy_row, int src_w, int dst_w, int bpp);
void gst_videoscale_scale_nearest_x86 (GstVideoScale *scale,
unsigned char *src, unsigned char *dest,
int sw, int sh, int dw, int dh);
#endif /* __GST_VIDEOSCALE__X86_H__ */

53
libs/videoscale/gstscale_x86_asm.s
View file

@ -1,53 +0,0 @@
.text
.align 4
.globl gst_videoscale_scale_nearest_x86
.type gst_videoscale_scale_nearest_x86,@function
gst_videoscale_scale_nearest_x86:
subl $8,%esp
pushl %ebp
pushl %edi
pushl %esi
movl 28(%esp),%ebp
movl 24(%esp),%edx
addl $28,%edx
movl 24(%esp),%eax
movl %edx,8220(%eax)
movl $65536,12(%esp)
movl 40(%esp),%ecx
sall $16,%ecx
movl %ecx,%eax
cltd
idivl 48(%esp)
movl %eax,%ecx
movl 48(%esp),%eax
movl %eax,16(%esp)
testl %eax,%eax
jle .L92
jmp .L100
.p2align 4,,7
.L97:
addl 36(%esp),%ebp
addl $-65536,12(%esp)
.L100:
cmpl $65536,12(%esp)
jg .L97
movl 32(%esp),%edi
movl %ebp,%esi
movl 24(%esp),%edx
movl 8220(%edx), %eax
call *%eax
movl 44(%esp),%eax
addl %eax,32(%esp)
addl %ecx,12(%esp)
decl 16(%esp)
cmpl $0,16(%esp)
jg .L100
.L92:
popl %esi
popl %edi
popl %ebp
addl $8,%esp
ret

393
libs/videoscale/gstvideoscale.c
View file

@ -1,393 +0,0 @@
/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
//#define DEBUG_ENABLED
#include <stdlib.h>
#include <math.h>
#include "config.h"
#include "gstvideoscale.h"
#ifdef HAVE_CPU_I386
#include "gstscale_x86.h"
#endif
static void gst_videoscale_scale_yuv (GstVideoScale *scale, unsigned char *src, unsigned char *dest);
static void gst_videoscale_scale_rgb (GstVideoScale *scale, unsigned char *src, unsigned char *dest);
/* scalers */
static void gst_videoscale_scale_nearest (GstVideoScale *scale, unsigned char *src, unsigned char *dest,
int sw, int sh, int dw, int dh);
static void gst_videoscale_scale_plane_slow (GstVideoScale *scale, unsigned char *src, unsigned char *dest,
int sw, int sh, int dw, int dh);
static void gst_videoscale_scale_point_sample (GstVideoScale *scale, unsigned char *src, unsigned char *dest,
int sw, int sh, int dw, int dh);
/* filters */
static unsigned char gst_videoscale_bilinear (unsigned char *src, double x, double y, int sw, int sh);
static unsigned char gst_videoscale_bicubic (unsigned char *src, double x, double y, int sw, int sh);
GstVideoScale*
gst_videoscale_new (gint sw, gint sh, gint dw, gint dh,
GstColorSpaceType format, GstVideoScaleMethod method)
{
GstVideoScale *new = g_malloc(sizeof(GstVideoScale));
new->source_width = sw;
new->source_height = sh;
new->dest_width = dw;
new->dest_height = dh;
new->format = format;
new->method = method;
switch (format) {
case GST_COLORSPACE_YUV420P:
new->scale = gst_videoscale_scale_yuv;
new->scale_bytes = 1;
break;
case GST_COLORSPACE_RGB555:
case GST_COLORSPACE_RGB565:
case GST_COLORSPACE_BGR555:
case GST_COLORSPACE_BGR565:
new->scale = gst_videoscale_scale_rgb;
new->scale_bytes = 2;
break;
case GST_COLORSPACE_RGB32:
case GST_COLORSPACE_BGR32:
new->scale = gst_videoscale_scale_rgb;
new->scale_bytes = 4;
break;
default:
g_print("videoscale: unsupported video format %d\n", format);
g_free(new);
return NULL;
}
switch (method) {
case GST_VIDEOSCALE_POINT_SAMPLE:
new->scaler = gst_videoscale_scale_point_sample;
GST_DEBUG (0,"videoscale: scaling method POINT_SAMPLE\n");
break;
case GST_VIDEOSCALE_NEAREST:
#ifdef HAVE_CPU_I386
gst_videoscale_generate_rowbytes_x86 (new->copy_row, sw, dw, new->scale_bytes);
new->scaler = gst_videoscale_scale_nearest_x86;
#else
new->scaler = gst_videoscale_scale_nearest;
#endif
GST_DEBUG (0,"videoscale: scaling method NEAREST\n");
break;
case GST_VIDEOSCALE_BILINEAR:
new->scaler = gst_videoscale_scale_plane_slow;
new->filter = gst_videoscale_bilinear;
GST_DEBUG (0,"videoscale: scaling method BILINEAR\n");
break;
case GST_VIDEOSCALE_BICUBIC:
new->scaler = gst_videoscale_scale_plane_slow;
new->filter = gst_videoscale_bicubic;
GST_DEBUG (0,"videoscale: scaling method BICUBIC\n");
break;
default:
g_print("videoscale: unsupported scaling method %d\n", method);
g_free(new);
return NULL;
}
return new;
}
void
gst_videoscale_destroy (GstVideoScale *scale)
{
g_free(scale);
}
static void
gst_videoscale_scale_rgb (GstVideoScale *scale, unsigned char *src, unsigned char *dest)
{
int sw = scale->source_width;
int sh = scale->source_height;
int dw = scale->dest_width;
int dh = scale->dest_height;
GST_DEBUG (0,"videoscale: scaling RGB %dx%d to %dx%d\n", sw, sh, dw, dh);
switch (scale->scale_bytes) {
case 2:
dw = ((dw + 1) & ~1) << 1;
sw = sw<<1;
break;
case 4:
dw = ((dw + 2) & ~3) << 2;
sw = sw<<2;
break;
default:
break;
}
GST_DEBUG (0,"videoscale: %p %p\n", src, dest);
scale->scaler(scale, src, dest, sw, sh, dw, dh);
}
static void
gst_videoscale_scale_yuv (GstVideoScale *scale, unsigned char *src, unsigned char *dest)
{
int sw = scale->source_width;
int sh = scale->source_height;
int dw = scale->dest_width;
int dh = scale->dest_height;
GST_DEBUG (0,"videoscale: scaling YUV420P %dx%d to %dx%d\n", sw, sh, dw, dh);
scale->scaler(scale, src, dest, sw, sh, dw, dh);
src += sw*sh;
dest += dw*dh;
dh = dh>>1;
dw = dw>>1;
sh = sh>>1;
sw = sw>>1;
scale->scaler(scale, src, dest, sw, sh, dw, dh);
src += sw*sh;
dest += dw*dh;
scale->scaler(scale, src, dest, sw, sh, dw, dh);
}
#define RC(x,y) *(src+(int)(x)+(int)((y)*sw))
static unsigned char
gst_videoscale_bilinear (unsigned char *src, double x, double y, int sw, int sh)
{
int j=floor(x);
int k=floor(y);
double a=x-j;
double b=y-k;
double dest;
int color;
GST_DEBUG(0,"videoscale: scaling bilinear %f %f %dx%d\n", x, y, sw, sh);
dest=(1-a)*(1-b)*RC(j,k)+
a*(1-b)*RC(j+1,k);
k = MIN(sh-1, k);
dest+= b*(1-a)*RC(j,k+1)+
a*b*RC(j+1,k+1);
color=rint(dest);
if (color<0) color=abs(color); // cannot have negative values !
//if (color<0) color=0; // cannot have negative values !
if (color>255) color=255;
return (unsigned char) color;
}
static unsigned char
gst_videoscale_bicubic (unsigned char *src, double x, double y, int sw, int sh)
{
int j=floor(x);
int k=floor(y), k2;
double a=x-j;
double b=y-k;
double dest;
int color;
double t1, t2, t3, t4;
double a1, a2, a3, a4;
GST_DEBUG (0,"videoscale: scaling bicubic %dx%d\n", sw, sh);
a1 = -a*(1-a)*(1-a);
a2 = (1-2*a*a+a*a*a);
a3 = a*(1+a-a*a);
a4 = a*a*(1-a);
k2 = MAX(0, k-1);
t1=a1*RC(j-1,k2)+ a2*RC(j,k2)+ a3*RC(j+1,k2)- a4*RC(j+2,k2);
t2=a1*RC(j-1,k)+ a2*RC(j,k)+ a3*RC(j+1,k)- a4*RC(j+2,k);
k2 = MIN(sh, k+1);
t3=a1*RC(j-1,k2)+ a2*RC(j,k2)+ a3*RC(j+1,k2)- a4*RC(j+2,k2);
k2 = MIN(sh, k+2);
t4=a1*RC(j-1,k2)+ a2*RC(j,k2)+ a3*RC(j+1,k2)- a4*RC(j+2,k2);
dest= -b*(1-b)*(1-b)*t1+ (1-2*b*b+b*b*b)*t2+ b*(1+b-b*b)*t3+ b*b*(b-1)*t4;
color=rint(dest);
if (color<0) color=abs(color); // cannot have negative values !
if (color>255) color=255;
return (unsigned char) color;
}
static void
gst_videoscale_scale_plane_slow (GstVideoScale *scale, unsigned char *src, unsigned char *dest,
int sw, int sh, int dw, int dh)
{
double zoomx = ((double)dw)/(double)sw;
double zoomy = ((double)dh)/(double)sh;
double xr, yr;
int x, y;
GST_DEBUG (0,"videoscale: scale plane slow %dx%d %dx%d %g %g %p %p\n", sw, sh, dw, dh, zoomx, zoomy, src, dest);
for (y=0; y<dh; y++) {
yr = ((double)y)/zoomy;
for (x=0; x<dw; x++) {
xr = ((double)x)/zoomx;
GST_DEBUG (0,"videoscale: scale plane slow %g %g %p\n", xr, yr, (src+(int)(x)+(int)((y)*sw)));
if (floor(xr) == xr && floor(yr) == yr){
GST_DEBUG (0,"videoscale: scale plane %g %g %p %p\n", xr, yr, (src+(int)(x)+(int)((y)*sw)), dest);
*dest++ = RC(xr, yr);
}
else {
*dest++ = scale->filter(src, xr, yr, sw, sh);
//*dest++ = gst_videoscale_bicubic(src, xr, yr, sw, sh);
}
}
}
}
static void
gst_videoscale_scale_point_sample (GstVideoScale *scale, unsigned char *src, unsigned char *dest,
int sw, int sh, int dw, int dh)
{
int ypos, yinc, y;
int xpos, xinc, x;
int sum, xcount, ycount, loop;
unsigned char *srcp, *srcp2;
GST_DEBUG (0,"videoscale: scaling nearest point sample %p %p %d\n", src, dest, dw);
ypos = 0x10000;
yinc = (sh<<16)/dh;
xinc = (sw<<16)/dw;
for (y = dh; y; y--) {
ycount = 1;
srcp = src;
while (ypos >0x10000) {
ycount++;
ypos-=0x10000;
src += sw;
}
xpos = 0x10000;
for ( x=dw; x; x-- ) {
xcount = 0;
sum=0;
while ( xpos >= 0x10000L ) {
loop = ycount;
srcp2 = srcp;
while (loop--) {
sum += *srcp2;
srcp2 += sw;
}
srcp++;
xcount++;
xpos -= 0x10000L;
}
*dest++ = sum/(xcount*ycount);
xpos += xinc;
}
ypos += yinc;
}
}
static void
gst_videoscale_scale_nearest (GstVideoScale *scale,
unsigned char *src,
unsigned char *dest,
int sw, int sh, int dw, int dh)
{
int ypos, yinc, y;
int xpos, xinc, x;
GST_DEBUG (0, "videoscale: scaling nearest %p %p %d %d\n", src, dest, dw, scale->scale_bytes);
ypos = 0x10000;
yinc = (sh<<16)/dh;
xinc = (sw<<16)/dw;
for (y = dh; y; y--) {
while (ypos >0x10000) {
ypos-=0x10000;
src += sw;
}
xpos = 0x10000;
switch (scale->scale_bytes) {
case 4:
{
guint32 *destp = (guint32 *)dest;
guint32 *srcp = (guint32 *)src;
for ( x=dw>>2; x; x-- ) {
while ( xpos >= 0x10000L ) {
srcp++;
xpos -= 0x10000L;
}
*destp++ = *srcp;
xpos += xinc;
}
break;
}
case 2:
{
guint16 *destp = (guint16 *)dest;
guint16 *srcp = (guint16 *)src;
for ( x=dw>>1; x; x-- ) {
while ( xpos >= 0x10000L ) {
srcp++;
xpos -= 0x10000L;
}
*destp++ = *srcp;
xpos += xinc;
}
break;
}
case 1:
{
guchar *destp = dest;
guchar *srcp = src;
for ( x=dw; x; x-- ) {
while ( xpos >= 0x10000L ) {
srcp++;
xpos -= 0x10000L;
}
*destp++ = *srcp;
xpos += xinc;
}
}
}
dest += dw;
ypos += yinc;
}
}

57
libs/videoscale/gstvideoscale.h
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@ -1,57 +0,0 @@
/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#ifndef __GST_VIDEOSCALE_H__
#define __GST_VIDEOSCALE_H__
#include <gst/gst.h>
#include <libs/colorspace/gstcolorspace.h>
typedef enum {
GST_VIDEOSCALE_POINT_SAMPLE,
GST_VIDEOSCALE_NEAREST,
GST_VIDEOSCALE_BILINEAR,
GST_VIDEOSCALE_BICUBIC
} GstVideoScaleMethod;
typedef struct _GstVideoScale GstVideoScale;
typedef void (*GstVideoScaleScaler) (GstVideoScale *scale, guchar *src, guchar *dest);
struct _GstVideoScale {
guint source_width;
guint source_height;
guint dest_width;
guint dest_height;
GstColorSpaceType format;
GstVideoScaleMethod method;
guint scale_bytes;
/* private */
guchar copy_row[8192];
guchar *temp;
GstVideoScaleScaler scale;
void (*scaler) (GstVideoScale *scale, guchar *src, guchar *dest, gint sw, gint sh, gint dw, gint dh);
guchar (*filter) (guchar *src, gdouble x, gdouble y, gint sw, gint sh);
};
GstVideoScale *gst_videoscale_new(gint sw, gint sh, gint dw, gint dh, GstColorSpaceType format, GstVideoScaleMethod method);
#define gst_videoscale_scale(scaler, src, dest) (scaler)->scale((scaler), (src), (dest))
void gst_videoscale_destroy(GstVideoScale *scale);
#endif /* __GST_VIDEOSCALE_H__ */