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, 322 insertions, 0 deletions

diff --git a/mpg123_artsplugin/mpg123/dct64_i486.c b/mpg123_artsplugin/mpg123/dct64_i486.c
new file mode 100644
index 00000000..b8f5d08b
--- /dev/null
+++ b/mpg123_artsplugin/mpg123/dct64_i486.c
@@ -0,0 +1,322 @@
+
+/* Discrete Cosine Tansform (DCT) for subband synthesis.
+ *
+ * This code is optimized for 80486. It should be compiled with gcc
+ * 2.7.2 or higher.
+ *
+ * Note: This code does not give the necessary accuracy. Moreover, no
+ * overflow test are done.
+ *
+ * (c) 1998 Fabrice Bellard.  
+ *
+ * GPL clean
+ */
+
+#include "mpg123.h"
+
+#define COS_0_0 16403
+#define COS_0_1 16563
+#define COS_0_2 16890
+#define COS_0_3 17401
+#define COS_0_4 18124
+#define COS_0_5 19101
+#define COS_0_6 20398
+#define COS_0_7 22112
+#define COS_0_8 24396
+#define COS_0_9 27503
+#define COS_0_10 31869
+#define COS_0_11 38320
+#define COS_0_12 48633
+#define COS_0_13 67429
+#define COS_0_14 111660
+#define COS_0_15 333906
+#define COS_1_0 16463
+#define COS_1_1 17121
+#define COS_1_2 18577
+#define COS_1_3 21195
+#define COS_1_4 25826
+#define COS_1_5 34756
+#define COS_1_6 56441
+#define COS_1_7 167154
+#define COS_2_0 16704
+#define COS_2_1 19704
+#define COS_2_2 29490
+#define COS_2_3 83981
+#define COS_3_0 17733
+#define COS_3_1 42813
+#define COS_4_0 23170         
+
+#define SETOUT(out,n,expr) out[FIR_BUFFER_SIZE*(n)]=(expr)
+#define MUL(a,b) (((a)*(b)) >> 15)
+#define MULL(a,b) (((long long)(a)*(long long)(b)) >> 15)
+#ifdef REAL_IS_FIXED
+#define TOINT(a) ((a) * 32768 / (int)REAL_FACTOR)
+#else
+#define TOINT(a) ((int)((a)*32768.0))
+#endif
+
+void dct64_1_486(int *out0,int *out1,int *b1,int *b2)
+{
+  b1[0x00] = b2[0x00] + b2[0x1F];
+  b1[0x1F] = MUL((b2[0x00] - b2[0x1F]),COS_0_0);
+
+  b1[0x01] = b2[0x01] + b2[0x1E];
+  b1[0x1E] = MUL((b2[0x01] - b2[0x1E]),COS_0_1);
+
+  b1[0x02] = b2[0x02] + b2[0x1D];
+  b1[0x1D] = MUL((b2[0x02] - b2[0x1D]),COS_0_2);
+
+  b1[0x03] = b2[0x03] + b2[0x1C];
+  b1[0x1C] = MUL((b2[0x03] - b2[0x1C]),COS_0_3);
+
+  b1[0x04] = b2[0x04] + b2[0x1B];
+  b1[0x1B] = MUL((b2[0x04] - b2[0x1B]),COS_0_4);
+
+  b1[0x05] = b2[0x05] + b2[0x1A];
+  b1[0x1A] = MUL((b2[0x05] - b2[0x1A]),COS_0_5);
+
+  b1[0x06] = b2[0x06] + b2[0x19];
+  b1[0x19] = MUL((b2[0x06] - b2[0x19]),COS_0_6);
+
+  b1[0x07] = b2[0x07] + b2[0x18];
+  b1[0x18] = MUL((b2[0x07] - b2[0x18]),COS_0_7);
+
+  b1[0x08] = b2[0x08] + b2[0x17];
+  b1[0x17] = MUL((b2[0x08] - b2[0x17]),COS_0_8);
+
+  b1[0x09] = b2[0x09] + b2[0x16];
+  b1[0x16] = MUL((b2[0x09] - b2[0x16]),COS_0_9);
+
+  b1[0x0A] = b2[0x0A] + b2[0x15];
+  b1[0x15] = MUL((b2[0x0A] - b2[0x15]),COS_0_10);
+
+  b1[0x0B] = b2[0x0B] + b2[0x14];
+  b1[0x14] = MUL((b2[0x0B] - b2[0x14]),COS_0_11);
+
+  b1[0x0C] = b2[0x0C] + b2[0x13];
+  b1[0x13] = MUL((b2[0x0C] - b2[0x13]),COS_0_12);
+
+  b1[0x0D] = b2[0x0D] + b2[0x12];
+  b1[0x12] = MULL((b2[0x0D] - b2[0x12]),COS_0_13);
+
+  b1[0x0E] = b2[0x0E] + b2[0x11];
+  b1[0x11] = MULL((b2[0x0E] - b2[0x11]),COS_0_14);
+
+  b1[0x0F] = b2[0x0F] + b2[0x10];
+  b1[0x10] = MULL((b2[0x0F] - b2[0x10]),COS_0_15);
+
+
+  b2[0x00] = b1[0x00] + b1[0x0F]; 
+  b2[0x0F] = MUL((b1[0x00] - b1[0x0F]),COS_1_0);
+  b2[0x01] = b1[0x01] + b1[0x0E]; 
+  b2[0x0E] = MUL((b1[0x01] - b1[0x0E]),COS_1_1);
+  b2[0x02] = b1[0x02] + b1[0x0D]; 
+  b2[0x0D] = MUL((b1[0x02] - b1[0x0D]),COS_1_2);
+  b2[0x03] = b1[0x03] + b1[0x0C]; 
+  b2[0x0C] = MUL((b1[0x03] - b1[0x0C]),COS_1_3);
+  b2[0x04] = b1[0x04] + b1[0x0B]; 
+  b2[0x0B] = MUL((b1[0x04] - b1[0x0B]),COS_1_4);
+  b2[0x05] = b1[0x05] + b1[0x0A]; 
+  b2[0x0A] = MUL((b1[0x05] - b1[0x0A]),COS_1_5);
+  b2[0x06] = b1[0x06] + b1[0x09]; 
+  b2[0x09] = MUL((b1[0x06] - b1[0x09]),COS_1_6);
+  b2[0x07] = b1[0x07] + b1[0x08]; 
+  b2[0x08] = MULL((b1[0x07] - b1[0x08]),COS_1_7);
+
+  b2[0x10] = b1[0x10] + b1[0x1F];
+  b2[0x1F] = MUL((b1[0x1F] - b1[0x10]),COS_1_0);
+  b2[0x11] = b1[0x11] + b1[0x1E];
+  b2[0x1E] = MUL((b1[0x1E] - b1[0x11]),COS_1_1);
+  b2[0x12] = b1[0x12] + b1[0x1D];
+  b2[0x1D] = MUL((b1[0x1D] - b1[0x12]),COS_1_2);
+  b2[0x13] = b1[0x13] + b1[0x1C];
+  b2[0x1C] = MUL((b1[0x1C] - b1[0x13]),COS_1_3);
+  b2[0x14] = b1[0x14] + b1[0x1B];
+  b2[0x1B] = MUL((b1[0x1B] - b1[0x14]),COS_1_4);
+  b2[0x15] = b1[0x15] + b1[0x1A];
+  b2[0x1A] = MUL((b1[0x1A] - b1[0x15]),COS_1_5);
+  b2[0x16] = b1[0x16] + b1[0x19];
+  b2[0x19] = MUL((b1[0x19] - b1[0x16]),COS_1_6);
+  b2[0x17] = b1[0x17] + b1[0x18];
+  b2[0x18] = MULL((b1[0x18] - b1[0x17]),COS_1_7);
+
+
+  b1[0x00] = b2[0x00] + b2[0x07];
+  b1[0x07] = MUL((b2[0x00] - b2[0x07]),COS_2_0);
+  b1[0x01] = b2[0x01] + b2[0x06];
+  b1[0x06] = MUL((b2[0x01] - b2[0x06]),COS_2_1);
+  b1[0x02] = b2[0x02] + b2[0x05];
+  b1[0x05] = MUL((b2[0x02] - b2[0x05]),COS_2_2);
+  b1[0x03] = b2[0x03] + b2[0x04];
+  b1[0x04] = MULL((b2[0x03] - b2[0x04]),COS_2_3);
+
+  b1[0x08] = b2[0x08] + b2[0x0F];
+  b1[0x0F] = MUL((b2[0x0F] - b2[0x08]),COS_2_0);
+  b1[0x09] = b2[0x09] + b2[0x0E];
+  b1[0x0E] = MUL((b2[0x0E] - b2[0x09]),COS_2_1);
+  b1[0x0A] = b2[0x0A] + b2[0x0D];
+  b1[0x0D] = MUL((b2[0x0D] - b2[0x0A]),COS_2_2);
+  b1[0x0B] = b2[0x0B] + b2[0x0C];
+  b1[0x0C] = MULL((b2[0x0C] - b2[0x0B]),COS_2_3);
+
+  b1[0x10] = b2[0x10] + b2[0x17];
+  b1[0x17] = MUL((b2[0x10] - b2[0x17]),COS_2_0);
+  b1[0x11] = b2[0x11] + b2[0x16];
+  b1[0x16] = MUL((b2[0x11] - b2[0x16]),COS_2_1);
+  b1[0x12] = b2[0x12] + b2[0x15];
+  b1[0x15] = MUL((b2[0x12] - b2[0x15]),COS_2_2);
+  b1[0x13] = b2[0x13] + b2[0x14];
+  b1[0x14] = MULL((b2[0x13] - b2[0x14]),COS_2_3);
+
+  b1[0x18] = b2[0x18] + b2[0x1F];
+  b1[0x1F] = MUL((b2[0x1F] - b2[0x18]),COS_2_0);
+  b1[0x19] = b2[0x19] + b2[0x1E];
+  b1[0x1E] = MUL((b2[0x1E] - b2[0x19]),COS_2_1);
+  b1[0x1A] = b2[0x1A] + b2[0x1D];
+  b1[0x1D] = MUL((b2[0x1D] - b2[0x1A]),COS_2_2);
+  b1[0x1B] = b2[0x1B] + b2[0x1C];
+  b1[0x1C] = MULL((b2[0x1C] - b2[0x1B]),COS_2_3);
+
+
+  b2[0x00] = b1[0x00] + b1[0x03];
+  b2[0x03] = MUL((b1[0x00] - b1[0x03]),COS_3_0);
+  b2[0x01] = b1[0x01] + b1[0x02];
+  b2[0x02] = MUL((b1[0x01] - b1[0x02]),COS_3_1);
+
+  b2[0x04] = b1[0x04] + b1[0x07];
+  b2[0x07] = MUL((b1[0x07] - b1[0x04]),COS_3_0);
+  b2[0x05] = b1[0x05] + b1[0x06];
+  b2[0x06] = MUL((b1[0x06] - b1[0x05]),COS_3_1);
+
+  b2[0x08] = b1[0x08] + b1[0x0B];
+  b2[0x0B] = MUL((b1[0x08] - b1[0x0B]),COS_3_0);
+  b2[0x09] = b1[0x09] + b1[0x0A];
+  b2[0x0A] = MUL((b1[0x09] - b1[0x0A]),COS_3_1);
+  
+  b2[0x0C] = b1[0x0C] + b1[0x0F];
+  b2[0x0F] = MUL((b1[0x0F] - b1[0x0C]),COS_3_0);
+  b2[0x0D] = b1[0x0D] + b1[0x0E];
+  b2[0x0E] = MUL((b1[0x0E] - b1[0x0D]),COS_3_1);
+
+  b2[0x10] = b1[0x10] + b1[0x13];
+  b2[0x13] = MUL((b1[0x10] - b1[0x13]),COS_3_0);
+  b2[0x11] = b1[0x11] + b1[0x12];
+  b2[0x12] = MUL((b1[0x11] - b1[0x12]),COS_3_1);
+
+  b2[0x14] = b1[0x14] + b1[0x17];
+  b2[0x17] = MUL((b1[0x17] - b1[0x14]),COS_3_0);
+  b2[0x15] = b1[0x15] + b1[0x16];
+  b2[0x16] = MUL((b1[0x16] - b1[0x15]),COS_3_1);
+
+  b2[0x18] = b1[0x18] + b1[0x1B];
+  b2[0x1B] = MUL((b1[0x18] - b1[0x1B]),COS_3_0);
+  b2[0x19] = b1[0x19] + b1[0x1A];
+  b2[0x1A] = MUL((b1[0x19] - b1[0x1A]),COS_3_1);
+
+  b2[0x1C] = b1[0x1C] + b1[0x1F];
+  b2[0x1F] = MUL((b1[0x1F] - b1[0x1C]),COS_3_0);
+  b2[0x1D] = b1[0x1D] + b1[0x1E];
+  b2[0x1E] = MUL((b1[0x1E] - b1[0x1D]),COS_3_1);
+
+  {
+    int i;
+    for(i=0;i<32;i+=4) {
+      b1[i+0x00] = b2[i+0x00] + b2[i+0x01];
+      b1[i+0x01] = MUL((b2[i+0x00] - b2[i+0x01]),COS_4_0);
+      b1[i+0x02] = b2[i+0x02] + b2[i+0x03];
+      b1[i+0x03] = MUL((b2[i+0x03] - b2[i+0x02]),COS_4_0);
+    }
+  }
+
+  b1[0x02] += b1[0x03];
+  b1[0x06] += b1[0x07];
+  b1[0x04] += b1[0x06];
+  b1[0x06] += b1[0x05];
+  b1[0x05] += b1[0x07];
+
+  b1[0x0A] += b1[0x0B];
+  b1[0x0E] += b1[0x0F];
+  b1[0x0C] += b1[0x0E];
+  b1[0x0E] += b1[0x0D];
+  b1[0x0D] += b1[0x0F];
+
+  b1[0x12] += b1[0x13];
+  b1[0x16] += b1[0x17];
+  b1[0x14] += b1[0x16];
+  b1[0x16] += b1[0x15];
+  b1[0x15] += b1[0x17];
+
+  b1[0x1A] += b1[0x1B];
+  b1[0x1E] += b1[0x1F];
+  b1[0x1C] += b1[0x1E];
+  b1[0x1E] += b1[0x1D];
+  b1[0x1D] += b1[0x1F];
+
+ SETOUT(out0,16,b1[0x00]);
+ SETOUT(out0,12,b1[0x04]);
+ SETOUT(out0, 8,b1[0x02]);
+ SETOUT(out0, 4,b1[0x06]);
+ SETOUT(out0, 0,b1[0x01]);
+ SETOUT(out1, 0,b1[0x01]);
+ SETOUT(out1, 4,b1[0x05]);
+ SETOUT(out1, 8,b1[0x03]);
+ SETOUT(out1,12,b1[0x07]);
+
+ b1[0x08] += b1[0x0C];
+ SETOUT(out0,14,b1[0x08]);
+ b1[0x0C] += b1[0x0a];
+ SETOUT(out0,10,b1[0x0C]);
+ b1[0x0A] += b1[0x0E];
+ SETOUT(out0, 6,b1[0x0A]);
+ b1[0x0E] += b1[0x09];
+ SETOUT(out0, 2,b1[0x0E]);
+ b1[0x09] += b1[0x0D];
+ SETOUT(out1, 2,b1[0x09]);
+ b1[0x0D] += b1[0x0B];
+ SETOUT(out1, 6,b1[0x0D]);
+ b1[0x0B] += b1[0x0F];
+ SETOUT(out1,10,b1[0x0B]);
+ SETOUT(out1,14,b1[0x0F]);
+
+ b1[0x18] += b1[0x1C];
+ SETOUT(out0,15,b1[0x10] + b1[0x18]);
+ SETOUT(out0,13,b1[0x18] + b1[0x14]);
+ b1[0x1C] += b1[0x1a];
+ SETOUT(out0,11,b1[0x14] + b1[0x1C]);
+ SETOUT(out0, 9,b1[0x1C] + b1[0x12]);
+ b1[0x1A] += b1[0x1E];
+ SETOUT(out0, 7,b1[0x12] + b1[0x1A]);
+ SETOUT(out0, 5,b1[0x1A] + b1[0x16]);
+ b1[0x1E] += b1[0x19];
+ SETOUT(out0, 3,b1[0x16] + b1[0x1E]);
+ SETOUT(out0, 1,b1[0x1E] + b1[0x11]);
+ b1[0x19] += b1[0x1D];
+ SETOUT(out1, 1,b1[0x11] + b1[0x19]);
+ SETOUT(out1, 3,b1[0x19] + b1[0x15]);
+ b1[0x1D] += b1[0x1B];
+ SETOUT(out1, 5,b1[0x15] + b1[0x1D]);
+ SETOUT(out1, 7,b1[0x1D] + b1[0x13]);
+ b1[0x1B] += b1[0x1F];
+ SETOUT(out1, 9,b1[0x13] + b1[0x1B]);
+ SETOUT(out1,11,b1[0x1B] + b1[0x17]);
+ SETOUT(out1,13,b1[0x17] + b1[0x1F]);
+ SETOUT(out1,15,b1[0x1F]);
+}
+
+
+/*
+ * the call via dct64 is a trick to force GCC to use
+ * (new) registers for the b1,b2 pointer to the bufs[xx] field
+ */
+void dct64_486(int *a,int *b,real *samples)
+{
+  int bufs[64];
+  int i;
+
+  for(i=0;i<32;i++) {
+    bufs[i+32]=TOINT(samples[i]);
+  }
+  
+  dct64_1_486(a,b,bufs,bufs+0x20);
+}
+