gstreamer/gst/goom/convolve_fx.c

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#include "goom_fx.h"
#include "goom_plugin_info.h"
#include "goom_config.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
//#define CONV_MOTIF_W 32
//#define CONV_MOTIF_WMASK 0x1f
/* Define if you like the wacky GOOM logo: */
#undef DRAW_MOTIF
#define CONV_MOTIF_W 128
#define CONV_MOTIF_WMASK 0x7f
typedef char Motif[CONV_MOTIF_W][CONV_MOTIF_W];
#include "motif_goom1.h"
#include "motif_goom2.h"
#define NB_THETA 512
typedef struct _CONV_DATA
{
PluginParam light;
PluginParam factor_adj_p;
PluginParam factor_p;
PluginParameters params;
/* rotozoom */
int theta;
float ftheta;
int h_sin[NB_THETA];
int h_cos[NB_THETA];
int h_height;
float visibility;
Motif conv_motif;
int inverse_motif;
} ConvData;
/* init rotozoom tables */
static void
compute_tables (VisualFX * _this, PluginInfo * info)
{
ConvData *data = (ConvData *) _this->fx_data;
double screen_coef;
int i;
double h;
double radian;
if (data->h_height == info->screen.height)
return;
screen_coef = 2.0 * 300.0 / (double) info->screen.height;
data->h_height = info->screen.height;
for (i = 0; i < NB_THETA; i++) {
radian = 2 * i * M_PI / NB_THETA;
h = (0.2 + cos (radian) / 15.0 * sin (radian * 2.0 + 12.123)) * screen_coef;
data->h_cos[i] = 0x10000 * (-h * cos (radian) * cos (radian));
data->h_sin[i] = 0x10000 * (h * sin (radian + 1.57) * sin (radian));
}
}
static void
set_motif (ConvData * data, Motif motif)
{
int i, j;
for (i = 0; i < CONV_MOTIF_W; ++i)
for (j = 0; j < CONV_MOTIF_W; ++j)
data->conv_motif[i][j] =
motif[CONV_MOTIF_W - i - 1][CONV_MOTIF_W - j - 1];
}
static void
convolve_init (VisualFX * _this, PluginInfo * info)
{
ConvData *data;
data = (ConvData *) malloc (sizeof (ConvData));
_this->fx_data = (void *) data;
data->light = secure_f_param ("Screen Brightness");
data->light.param.fval.max = 300.0f;
data->light.param.fval.step = 1.0f;
data->light.param.fval.value = 100.0f;
data->factor_adj_p = secure_f_param ("Flash Intensity");
data->factor_adj_p.param.fval.max = 200.0f;
data->factor_adj_p.param.fval.step = 1.0f;
data->factor_adj_p.param.fval.value = 70.0f;
data->factor_p = secure_f_feedback ("Factor");
data->params = plugin_parameters ("Bright Flash", 5);
data->params.params[0] = &data->light;
data->params.params[1] = &data->factor_adj_p;
data->params.params[2] = 0;
data->params.params[3] = &data->factor_p;
data->params.params[4] = 0;
data->h_height = 0;
/* init rotozoom tables */
compute_tables (_this, info);
data->theta = 0;
data->ftheta = 0.0;
data->visibility = 1.0;
set_motif (data, CONV_MOTIF2);
data->inverse_motif = 0;
_this->params = &data->params;
}
static void
convolve_free (VisualFX * _this)
{
ConvData *data = (ConvData *) _this->fx_data;
goom_plugin_parameters_free (&data->params);
free (_this->fx_data);
}
#ifdef DRAW_MOTIF
static void
create_output_with_brightness (VisualFX * _this, Pixel * src, Pixel * dest,
PluginInfo * info, int iff)
{
ConvData *data = (ConvData *) _this->fx_data;
int x, y;
int i = 0; //info->screen.height * info->screen.width - 1;
const int c = data->h_cos[data->theta];
const int s = data->h_sin[data->theta];
const int xi = -(info->screen.width / 2) * c;
const int yi = (info->screen.width / 2) * s;
const int xj = -(info->screen.height / 2) * s;
const int yj = -(info->screen.height / 2) * c;
int xprime = xj;
int yprime = yj;
int ifftab[16];
if (data->inverse_motif) {
int i;
for (i = 0; i < 16; ++i)
ifftab[i] = (double) iff *(1.0 + data->visibility * (15.0 - i) / 15.0);
} else {
int i;
for (i = 0; i < 16; ++i)
ifftab[i] = (double) iff / (1.0 + data->visibility * (15.0 - i) / 15.0);
}
for (y = info->screen.height; y--;) {
int xtex, ytex;
xtex = xprime + xi + CONV_MOTIF_W * 0x10000 / 2;
xprime += s;
ytex = yprime + yi + CONV_MOTIF_W * 0x10000 / 2;
yprime += c;
#ifdef HAVE_MMX
__asm__ __volatile__ ("\n\t pxor %%mm7, %%mm7" /* mm7 = 0 */
"\n\t movd %[xtex], %%mm2" "\n\t movd %[ytex], %%mm3" "\n\t punpckldq %%mm3, %%mm2" /* mm2 = [ ytex | xtex ] */
"\n\t movd %[c], %%mm4" "\n\t movd %[s], %%mm6" "\n\t pxor %%mm5, %%mm5" "\n\t psubd %%mm6, %%mm5" "\n\t punpckldq %%mm5, %%mm4" /* mm4 = [ -s | c ] */
"\n\t movd %[motif], %%mm6" /* mm6 = motif */
::[xtex] "g" (xtex),[ytex] "g" (ytex)
,[c] "g" (c),[s] "g" (s)
,[motif] "g" (&data->conv_motif[0][0]));
for (x = info->screen.width; x--;) {
__asm__ __volatile__ ("\n\t movd %[src], %%mm0" /* mm0 = src */
"\n\t paddd %%mm4, %%mm2" /* [ ytex | xtex ] += [ -s | s ] */
"\n\t movd %%esi, %%mm5" /* save esi into mm5 */
"\n\t movq %%mm2, %%mm3" "\n\t psrld $16, %%mm3" /* mm3 = [ (ytex>>16) | (xtex>>16) ] */
"\n\t movd %%mm3, %%eax" /* eax = xtex' */
"\n\t psrlq $25, %%mm3" "\n\t movd %%mm3, %%ecx" /* ecx = ytex' << 7 */
"\n\t andl $127, %%eax" "\n\t andl $16256, %%ecx" "\n\t addl %%ecx, %%eax" "\n\t movd %%mm6, %%esi" /* esi = motif */
"\n\t xorl %%ecx, %%ecx" "\n\t movb (%%eax,%%esi), %%cl" "\n\t movl %[ifftab], %%eax" "\n\t movd %%mm5, %%esi" /* restore esi from mm5 */
"\n\t movd (%%eax,%%ecx,4), %%mm1" /* mm1 = [0|0|0|iff2] */
"\n\t punpcklwd %%mm1, %%mm1"
"\n\t punpcklbw %%mm7, %%mm0"
"\n\t punpckldq %%mm1, %%mm1"
"\n\t psrlw $1, %%mm0"
"\n\t psrlw $2, %%mm1"
"\n\t pmullw %%mm1, %%mm0"
"\n\t psrlw $5, %%mm0"
"\n\t packuswb %%mm7, %%mm0"
"\n\t movd %%mm0, %[dest]":[dest] "=g" (dest[i].val)
:[src] "g" (src[i].val)
,[ifftab] "g" (&ifftab[0])
:"eax", "ecx");
i++;
}
#else
for (x = info->screen.width; x--;) {
int iff2;
unsigned int f0, f1, f2, f3;
xtex += c;
ytex -= s;
iff2 =
ifftab[(int) data->
conv_motif[(ytex >> 16) & CONV_MOTIF_WMASK][(xtex >> 16) &
CONV_MOTIF_WMASK]];
#define sat(a) ((a)>0xFF?0xFF:(a))
f0 = src[i].val;
f1 = ((f0 >> R_OFFSET) & 0xFF) * iff2 >> 8;
f2 = ((f0 >> G_OFFSET) & 0xFF) * iff2 >> 8;
f3 = ((f0 >> B_OFFSET) & 0xFF) * iff2 >> 8;
dest[i].val =
(sat (f1) << R_OFFSET) | (sat (f2) << G_OFFSET) | (sat (f3) <<
B_OFFSET);
/*
f0 = (src[i].cop[0] * iff2) >> 8;
f1 = (src[i].cop[1] * iff2) >> 8;
f2 = (src[i].cop[2] * iff2) >> 8;
f3 = (src[i].cop[3] * iff2) >> 8;
dest[i].cop[0] = (f0 & 0xffffff00) ? 0xff : (unsigned char)f0;
dest[i].cop[1] = (f1 & 0xffffff00) ? 0xff : (unsigned char)f1;
dest[i].cop[2] = (f2 & 0xffffff00) ? 0xff : (unsigned char)f2;
dest[i].cop[3] = (f3 & 0xffffff00) ? 0xff : (unsigned char)f3;
*/
i++;
}
#endif
}
#ifdef HAVE_MMX
__asm__ __volatile__ ("\n\t emms");
#endif
compute_tables (_this, info);
}
#endif
/*#include <stdint.h>
static uint64_t GetTick()
{
uint64_t x;
asm volatile ("RDTSC" : "=A" (x));
return x;
}*/
static void
convolve_apply (VisualFX * _this, Pixel * src, Pixel * dest, PluginInfo * info)
{
ConvData *data = (ConvData *) _this->fx_data;
float ff;
int iff;
ff = (FVAL (data->factor_p) * FVAL (data->factor_adj_p) +
FVAL (data->light)) / 100.0f;
iff = (unsigned int) (ff * 256);
{
double fcycle = (double) info->cycle;
double rotate_param, rotate_coef;
float INCREASE_RATE = 1.5;
float DECAY_RATE = 0.955;
if (FVAL (info->sound.last_goom_p) > 0.8)
FVAL (data->factor_p) += FVAL (info->sound.goom_power_p) * INCREASE_RATE;
FVAL (data->factor_p) *= DECAY_RATE;
rotate_param = FVAL (info->sound.last_goom_p);
if (rotate_param < 0.0)
rotate_param = 0.0;
rotate_param += FVAL (info->sound.goom_power_p);
rotate_coef = 4.0 + FVAL (info->sound.goom_power_p) * 6.0;
data->ftheta = (data->ftheta + rotate_coef * sin (rotate_param * 6.3));
data->theta = ((unsigned int) data->ftheta) % NB_THETA;
data->visibility =
(cos (fcycle * 0.001 + 1.5) * sin (fcycle * 0.008) +
cos (fcycle * 0.011 + 5.0) - 0.8 + info->sound.speedvar) * 1.5;
if (data->visibility < 0.0)
data->visibility = 0.0;
data->factor_p.change_listener (&data->factor_p);
}
if (data->visibility < 0.01) {
switch (goom_irand (info->gRandom, 300)) {
case 1:
set_motif (data, CONV_MOTIF1);
data->inverse_motif = 1;
break;
case 2:
set_motif (data, CONV_MOTIF2);
data->inverse_motif = 0;
break;
}
}
#ifdef DRAW_MOTIF
if ((ff > 0.98f) && (ff < 1.02f))
memcpy (dest, src, info->screen.size * sizeof (Pixel));
else
create_output_with_brightness (_this, src, dest, info, iff);
#else
memcpy (dest, src, info->screen.size * sizeof (Pixel));
#endif
/*
// Benching suite...
{
uint64_t before, after;
double timed;
static double stimed = 10000.0;
before = GetTick();
data->visibility = 1.0;
create_output_with_brightness(_this,src,dest,info,iff);
after = GetTick();
timed = (double)((after-before) / info->screen.size);
if (timed < stimed) {
stimed = timed;
printf ("CLK = %3.0f CPP\n", stimed);
}
}
*/
}
VisualFX
convolve_create (void)
{
VisualFX vfx = {
convolve_init,
convolve_free,
convolve_apply,
NULL
};
return vfx;
}