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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "config.h"
#include "mp_msg.h"
#include "cpudetect.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "libvo/video_out.h"
#include "m_option.h"
#include "m_struct.h"
static struct vf_priv_s {
unsigned char *buf;
int brightness;
int contrast;
} const vf_priv_dflt = {
NULL,
0,
0
};
#if HAVE_MMX
static void process_MMX(unsigned char *dest, int dstride, unsigned char *src, int sstride,
int w, int h, int brightness, int contrast)
{
int i;
int pel;
int dstep = dstride-w;
int sstep = sstride-w;
short brvec[4];
short contvec[4];
contrast = ((contrast+100)*256*16)/100;
brightness = ((brightness+100)*511)/200-128 - contrast/32;
brvec[0] = brvec[1] = brvec[2] = brvec[3] = brightness;
contvec[0] = contvec[1] = contvec[2] = contvec[3] = contrast;
while (h--) {
__asm__ volatile (
"movq (%5), %%mm3 \n\t"
"movq (%6), %%mm4 \n\t"
"pxor %%mm0, %%mm0 \n\t"
"movl %4, %%eax\n\t"
ASMALIGN(4)
"1: \n\t"
"movq (%0), %%mm1 \n\t"
"movq (%0), %%mm2 \n\t"
"punpcklbw %%mm0, %%mm1 \n\t"
"punpckhbw %%mm0, %%mm2 \n\t"
"psllw $4, %%mm1 \n\t"
"psllw $4, %%mm2 \n\t"
"pmulhw %%mm4, %%mm1 \n\t"
"pmulhw %%mm4, %%mm2 \n\t"
"paddw %%mm3, %%mm1 \n\t"
"paddw %%mm3, %%mm2 \n\t"
"packuswb %%mm2, %%mm1 \n\t"
"add $8, %0 \n\t"
"movq %%mm1, (%1) \n\t"
"add $8, %1 \n\t"
"decl %%eax \n\t"
"jnz 1b \n\t"
: "=r" (src), "=r" (dest)
: "0" (src), "1" (dest), "r" (w>>3), "r" (brvec), "r" (contvec)
: "%eax"
);
for (i = w&7; i; i--)
{
pel = ((*src++* contrast)>>12) + brightness;
if(pel&768) pel = (-pel)>>31;
*dest++ = pel;
}
src += sstep;
dest += dstep;
}
__asm__ volatile ( "emms \n\t" ::: "memory" );
}
#endif
static void process_C(unsigned char *dest, int dstride, unsigned char *src, int sstride,
int w, int h, int brightness, int contrast)
{
int i;
int pel;
int dstep = dstride-w;
int sstep = sstride-w;
contrast = ((contrast+100)*256*256)/100;
brightness = ((brightness+100)*511)/200-128 - contrast/512;
while (h--) {
for (i = w; i; i--)
{
pel = ((*src++* contrast)>>16) + brightness;
if(pel&768) pel = (-pel)>>31;
*dest++ = pel;
}
src += sstep;
dest += dstep;
}
}
static void (*process)(unsigned char *dest, int dstride, unsigned char *src, int sstride,
int w, int h, int brightness, int contrast);
/* FIXME: add packed yuv version of process */
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts)
{
mp_image_t *dmpi;
dmpi=vf_get_image(vf->next, mpi->imgfmt,
MP_IMGTYPE_EXPORT, 0,
mpi->w, mpi->h);
dmpi->stride[0] = mpi->stride[0];
dmpi->planes[1] = mpi->planes[1];
dmpi->planes[2] = mpi->planes[2];
dmpi->stride[1] = mpi->stride[1];
dmpi->stride[2] = mpi->stride[2];
if (!vf->priv->buf) vf->priv->buf = malloc(mpi->stride[0]*mpi->h);
if ((vf->priv->brightness == 0) && (vf->priv->contrast == 0))
dmpi->planes[0] = mpi->planes[0];
else {
dmpi->planes[0] = vf->priv->buf;
process(dmpi->planes[0], dmpi->stride[0],
mpi->planes[0], mpi->stride[0],
mpi->w, mpi->h, vf->priv->brightness,
vf->priv->contrast);
}
return vf_next_put_image(vf,dmpi, pts);
}
static int control(struct vf_instance_s* vf, int request, void* data)
{
vf_equalizer_t *eq;
switch (request) {
case VFCTRL_SET_EQUALIZER:
eq = data;
if (!strcmp(eq->item,"brightness")) {
vf->priv->brightness = eq->value;
return CONTROL_TRUE;
}
else if (!strcmp(eq->item,"contrast")) {
vf->priv->contrast = eq->value;
return CONTROL_TRUE;
}
break;
case VFCTRL_GET_EQUALIZER:
eq = data;
if (!strcmp(eq->item,"brightness")) {
eq->value = vf->priv->brightness;
return CONTROL_TRUE;
}
else if (!strcmp(eq->item,"contrast")) {
eq->value = vf->priv->contrast;
return CONTROL_TRUE;
}
break;
}
return vf_next_control(vf, request, data);
}
static int query_format(struct vf_instance_s* vf, unsigned int fmt)
{
switch (fmt) {
case IMGFMT_YVU9:
case IMGFMT_IF09:
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_CLPL:
case IMGFMT_Y800:
case IMGFMT_Y8:
case IMGFMT_NV12:
case IMGFMT_NV21:
case IMGFMT_444P:
case IMGFMT_422P:
case IMGFMT_411P:
return vf_next_query_format(vf, fmt);
}
return 0;
}
static void uninit(struct vf_instance_s* vf)
{
if (vf->priv->buf) free(vf->priv->buf);
free(vf->priv);
}
static int open(vf_instance_t *vf, char* args)
{
vf->control=control;
vf->query_format=query_format;
vf->put_image=put_image;
vf->uninit=uninit;
if(!vf->priv) {
vf->priv = malloc(sizeof(struct vf_priv_s));
memset(vf->priv, 0, sizeof(struct vf_priv_s));
}
if (args) sscanf(args, "%d:%d", &vf->priv->brightness, &vf->priv->contrast);
process = process_C;
#if HAVE_MMX
if(gCpuCaps.hasMMX) process = process_MMX;
#endif
return 1;
}
#define ST_OFF(f) M_ST_OFF(struct vf_priv_s,f)
static m_option_t vf_opts_fields[] = {
{"brightness", ST_OFF(brightness), CONF_TYPE_INT, M_OPT_RANGE,-100 ,100, NULL},
{"contrast", ST_OFF(contrast), CONF_TYPE_INT, M_OPT_RANGE,-100 ,100, NULL},
{ NULL, NULL, 0, 0, 0, 0, NULL }
};
static m_struct_t vf_opts = {
"eq",
sizeof(struct vf_priv_s),
&vf_priv_dflt,
vf_opts_fields
};
const vf_info_t vf_info_eq = {
"soft video equalizer",
"eq",
"Richard Felker",
"",
open,
&vf_opts
};
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