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-rw-r--r--gst/goom/convolve_fx.c368
1 files changed, 368 insertions, 0 deletions
diff --git a/gst/goom/convolve_fx.c b/gst/goom/convolve_fx.c
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+++ b/gst/goom/convolve_fx.c
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+/* Goom Project
+ * Copyright (C) <2003> iOS-Software
+ *
+ * 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., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+#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 * G_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;
+
+ secure_f_param (&data->light, "Screen Brightness");
+ data->light.param.fval.max = 300.0f;
+ data->light.param.fval.step = 1.0f;
+ data->light.param.fval.value = 100.0f;
+
+ secure_f_param (&data->factor_adj_p, "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;
+
+ secure_f_feedback (&data->factor_p, "Factor");
+
+ plugin_parameters (&data->params, "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;
+#ifdef DRAW_MOTIF
+ float ff;
+ int iff;
+
+ ff = (FVAL (data->factor_p) * FVAL (data->factor_adj_p) +
+ FVAL (data->light)) / 100.0f;
+ iff = (unsigned int) (ff * 256);
+#endif
+
+ {
+ 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);
+ }
+ }
+*/
+}
+
+void
+convolve_create (VisualFX * vfx)
+{
+ vfx->init = convolve_init;
+ vfx->free = convolve_free;
+ vfx->apply = convolve_apply;
+ vfx->fx_data = NULL;
+ vfx->params = NULL;
+}
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