Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 223 insertions, 0 deletions

diff --git a/mpg123_artsplugin/mpg123/decode.c b/mpg123_artsplugin/mpg123/decode.c
new file mode 100644
index 00000000..0c7036a8
--- /dev/null
+++ b/mpg123_artsplugin/mpg123/decode.c
@@ -0,0 +1,223 @@
+/* 
+ * Mpeg Layer-1,2,3 audio decoder 
+ * ------------------------------
+ * copyright (c) 1995,1996,1997 by Michael Hipp, All rights reserved.
+ * See also 'README'
+ *
+ */
+
+#include <stdlib.h>
+#include <math.h>
+#include <string.h>
+
+#include "mpg123.h"
+
+#define WRITE_SAMPLE(samples,sum,clip) \
+  if( (sum) > REAL_PLUS_32767) { *(samples) = 0x7fff; (clip)++; } \
+  else if( (sum) < REAL_MINUS_32768) { *(samples) = -0x8000; (clip)++; } \
+  else { *(samples) = REAL_TO_SHORT(sum); }
+
+int synth_1to1_8bit(real *bandPtr,int channel,unsigned char *samples,int *pnt)
+{
+  short samples_tmp[64];
+  short *tmp1 = samples_tmp + channel;
+  int i,ret;
+  int pnt1=0;
+
+  ret = synth_1to1(bandPtr,channel,(unsigned char *) samples_tmp,&pnt1);
+  samples += channel + *pnt;
+
+  for(i=0;i<32;i++) {
+    *samples = conv16to8[*tmp1>>AUSHIFT];
+    samples += 2;
+    tmp1 += 2;
+  }
+  *pnt += 64;
+
+  return ret;
+}
+
+int synth_1to1_8bit_mono(real *bandPtr,unsigned char *samples,int *pnt)
+{
+  short samples_tmp[64];
+  short *tmp1 = samples_tmp;
+  int i,ret;
+  int pnt1 = 0;
+
+  ret = synth_1to1(bandPtr,0,(unsigned char *) samples_tmp,&pnt1);
+  samples += *pnt;
+
+  for(i=0;i<32;i++) {
+    *samples++ = conv16to8[*tmp1>>AUSHIFT];
+    tmp1 += 2;
+  }
+  *pnt += 32;
+  
+  return ret;
+}
+
+int synth_1to1_8bit_mono2stereo(real *bandPtr,unsigned char *samples,int *pnt)
+{
+  short samples_tmp[64];
+  short *tmp1 = samples_tmp;
+  int i,ret;
+  int pnt1 = 0;
+
+  ret = synth_1to1(bandPtr,0,(unsigned char *) samples_tmp,&pnt1);
+  samples += *pnt;
+
+  for(i=0;i<32;i++) {
+    *samples++ = conv16to8[*tmp1>>AUSHIFT];
+    *samples++ = conv16to8[*tmp1>>AUSHIFT];
+    tmp1 += 2;
+  }
+  *pnt += 64;
+
+  return ret;
+}
+
+int synth_1to1_mono(real *bandPtr,unsigned char *samples,int *pnt)
+{
+  short samples_tmp[64];
+  short *tmp1 = samples_tmp;
+  int i,ret;
+  int pnt1 = 0;
+
+  ret = synth_1to1(bandPtr,0,(unsigned char *) samples_tmp,&pnt1);
+  samples += *pnt;
+
+  for(i=0;i<32;i++) {
+    *( (short *)samples) = *tmp1;
+    samples += 2;
+    tmp1 += 2;
+  }
+  *pnt += 64;
+
+  return ret;
+}
+
+
+int synth_1to1_mono2stereo(real *bandPtr,unsigned char *samples,int *pnt)
+{
+  int i,ret;
+
+  ret = synth_1to1(bandPtr,0,samples,pnt);
+  samples = samples + *pnt - 128;
+
+  for(i=0;i<32;i++) {
+    ((short *)samples)[1] = ((short *)samples)[0];
+    samples+=4;
+  }
+
+  return ret;
+}
+
+
+int synth_1to1(real *bandPtr,int channel,unsigned char *out,int *pnt)
+{
+  static real buffs[2][2][0x110];
+  static const int step = 2;
+  static int bo = 1;
+  short *samples = (short *) (out+*pnt);
+
+  real *b0,(*buf)[0x110];
+  int clip = 0; 
+  int bo1;
+
+#ifndef NO_EQUALIZER
+  if(param.enable_equalizer)
+	do_equalizer(bandPtr,channel);
+#endif
+
+  if(!channel) {
+    bo--;
+    bo &= 0xf;
+    buf = buffs[0];
+  }
+  else {
+    samples++;
+    buf = buffs[1];
+  }
+
+  if(bo & 0x1) {
+    b0 = buf[0];
+    bo1 = bo;
+    dct64(buf[1]+((bo+1)&0xf),buf[0]+bo,bandPtr);
+  }
+  else {
+    b0 = buf[1];
+    bo1 = bo+1;
+    dct64(buf[0]+bo,buf[1]+bo+1,bandPtr);
+  }
+
+
+  {
+    register int j;
+    real *window = decwin + 16 - bo1;
+ 
+    for (j=16;j;j--,window+=0x10,samples+=step)
+    {
+      real sum;
+      sum  = REAL_MUL(*window++, *b0++);
+      sum -= REAL_MUL(*window++, *b0++);
+      sum += REAL_MUL(*window++, *b0++);
+      sum -= REAL_MUL(*window++, *b0++);
+      sum += REAL_MUL(*window++, *b0++);
+      sum -= REAL_MUL(*window++, *b0++);
+      sum += REAL_MUL(*window++, *b0++);
+      sum -= REAL_MUL(*window++, *b0++);
+      sum += REAL_MUL(*window++, *b0++);
+      sum -= REAL_MUL(*window++, *b0++);
+      sum += REAL_MUL(*window++, *b0++);
+      sum -= REAL_MUL(*window++, *b0++);
+      sum += REAL_MUL(*window++, *b0++);
+      sum -= REAL_MUL(*window++, *b0++);
+      sum += REAL_MUL(*window++, *b0++);
+      sum -= REAL_MUL(*window++, *b0++);
+
+      WRITE_SAMPLE(samples,sum,clip);
+    }
+
+    {
+      real sum;
+      sum  = REAL_MUL(window[0x0], b0[0x0]);
+      sum += REAL_MUL(window[0x2], b0[0x2]);
+      sum += REAL_MUL(window[0x4], b0[0x4]);
+      sum += REAL_MUL(window[0x6], b0[0x6]);
+      sum += REAL_MUL(window[0x8], b0[0x8]);
+      sum += REAL_MUL(window[0xA], b0[0xA]);
+      sum += REAL_MUL(window[0xC], b0[0xC]);
+      sum += REAL_MUL(window[0xE], b0[0xE]);
+      WRITE_SAMPLE(samples,sum,clip);
+      b0-=0x10,window-=0x20,samples+=step;
+    }
+    window += bo1<<1;
+
+    for (j=15;j;j--,b0-=0x20,window-=0x10,samples+=step)
+    {
+      real sum;
+      sum = -REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+      sum -= REAL_MUL(*(--window), *b0++);
+
+      WRITE_SAMPLE(samples,sum,clip);
+    }
+  }
+
+  *pnt += 128;
+
+  return clip;
+}