simple_idct: remove disabled code
authorDiego Biurrun <diego@biurrun.de>
Sun, 17 Jul 2011 11:30:00 +0000 (13:30 +0200)
committerDiego Biurrun <diego@biurrun.de>
Sun, 17 Jul 2011 15:32:37 +0000 (17:32 +0200)
libavcodec/simple_idct.c
libavcodec/x86/simple_idct_mmx.c

index 4af11be..d21e5ed 100644 (file)
 #include "mathops.h"
 #include "simple_idct.h"
 
-#if 0
-#define W1 2841 /* 2048*sqrt (2)*cos (1*pi/16) */
-#define W2 2676 /* 2048*sqrt (2)*cos (2*pi/16) */
-#define W3 2408 /* 2048*sqrt (2)*cos (3*pi/16) */
-#define W4 2048 /* 2048*sqrt (2)*cos (4*pi/16) */
-#define W5 1609 /* 2048*sqrt (2)*cos (5*pi/16) */
-#define W6 1108 /* 2048*sqrt (2)*cos (6*pi/16) */
-#define W7 565  /* 2048*sqrt (2)*cos (7*pi/16) */
-#define ROW_SHIFT 8
-#define COL_SHIFT 17
-#else
 #define W1  22725  //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
 #define W2  21407  //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
 #define W3  19266  //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
@@ -54,7 +43,6 @@
 #define W7  4520   //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
 #define ROW_SHIFT 11
 #define COL_SHIFT 20 // 6
-#endif
 
 static inline void idctRowCondDC (DCTELEM * row)
 {
index d78ae6b..dc285cf 100644 (file)
 #define C1 22725 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
 #define C2 21407 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
 #define C3 19266 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-#if 0
-#define C4 16384 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-#else
 #define C4 16383 //cos(i*M_PI/16)*sqrt(2)*(1<<14) - 0.5
-#endif
 #define C5 12873 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
 #define C6 8867  //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
 #define C7 4520  //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
@@ -80,135 +76,6 @@ DECLARE_ALIGNED(8, static const int16_t, coeffs)[]= {
  C3, -C1,  C3, -C1
 };
 
-#if 0
-static void unused_var_killer(void)
-{
-        int a= wm1010 + d40000;
-        temp[0]=a;
-}
-
-static void inline idctCol (int16_t * col, int16_t *input)
-{
-#undef C0
-#undef C1
-#undef C2
-#undef C3
-#undef C4
-#undef C5
-#undef C6
-#undef C7
-        int a0, a1, a2, a3, b0, b1, b2, b3;
-        const int C0 = 23170; //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-        const int C1 = 22725; //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-        const int C2 = 21407; //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-        const int C3 = 19266; //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-        const int C4 = 16383; //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-        const int C5 = 12873; //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-        const int C6 = 8867;  //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-        const int C7 = 4520;  //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-/*
-        if( !(col[8*1] | col[8*2] |col[8*3] |col[8*4] |col[8*5] |col[8*6] | col[8*7])) {
-                col[8*0] = col[8*1] = col[8*2] = col[8*3] = col[8*4] =
-                        col[8*5] = col[8*6] = col[8*7] = col[8*0]<<3;
-                return;
-        }*/
-
-col[8*0] = input[8*0 + 0];
-col[8*1] = input[8*2 + 0];
-col[8*2] = input[8*0 + 1];
-col[8*3] = input[8*2 + 1];
-col[8*4] = input[8*4 + 0];
-col[8*5] = input[8*6 + 0];
-col[8*6] = input[8*4 + 1];
-col[8*7] = input[8*6 + 1];
-
-        a0 = C4*col[8*0] + C2*col[8*2] + C4*col[8*4] + C6*col[8*6] + (1<<(COL_SHIFT-1));
-        a1 = C4*col[8*0] + C6*col[8*2] - C4*col[8*4] - C2*col[8*6] + (1<<(COL_SHIFT-1));
-        a2 = C4*col[8*0] - C6*col[8*2] - C4*col[8*4] + C2*col[8*6] + (1<<(COL_SHIFT-1));
-        a3 = C4*col[8*0] - C2*col[8*2] + C4*col[8*4] - C6*col[8*6] + (1<<(COL_SHIFT-1));
-
-        b0 = C1*col[8*1] + C3*col[8*3] + C5*col[8*5] + C7*col[8*7];
-        b1 = C3*col[8*1] - C7*col[8*3] - C1*col[8*5] - C5*col[8*7];
-        b2 = C5*col[8*1] - C1*col[8*3] + C7*col[8*5] + C3*col[8*7];
-        b3 = C7*col[8*1] - C5*col[8*3] + C3*col[8*5] - C1*col[8*7];
-
-        col[8*0] = (a0 + b0) >> COL_SHIFT;
-        col[8*1] = (a1 + b1) >> COL_SHIFT;
-        col[8*2] = (a2 + b2) >> COL_SHIFT;
-        col[8*3] = (a3 + b3) >> COL_SHIFT;
-        col[8*4] = (a3 - b3) >> COL_SHIFT;
-        col[8*5] = (a2 - b2) >> COL_SHIFT;
-        col[8*6] = (a1 - b1) >> COL_SHIFT;
-        col[8*7] = (a0 - b0) >> COL_SHIFT;
-}
-
-static void inline idctRow (int16_t * output, int16_t * input)
-{
-        int16_t row[8];
-
-        int a0, a1, a2, a3, b0, b1, b2, b3;
-        const int C0 = 23170; //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-        const int C1 = 22725; //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-        const int C2 = 21407; //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-        const int C3 = 19266; //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-        const int C4 = 16383; //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-        const int C5 = 12873; //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-        const int C6 = 8867;  //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-        const int C7 = 4520;  //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-
-row[0] = input[0];
-row[2] = input[1];
-row[4] = input[4];
-row[6] = input[5];
-row[1] = input[8];
-row[3] = input[9];
-row[5] = input[12];
-row[7] = input[13];
-
-        if( !(row[1] | row[2] |row[3] |row[4] |row[5] |row[6] | row[7]) ) {
-                row[0] = row[1] = row[2] = row[3] = row[4] =
-                        row[5] = row[6] = row[7] = row[0]<<3;
-        output[0]  = row[0];
-        output[2]  = row[1];
-        output[4]  = row[2];
-        output[6]  = row[3];
-        output[8]  = row[4];
-        output[10] = row[5];
-        output[12] = row[6];
-        output[14] = row[7];
-                return;
-        }
-
-        a0 = C4*row[0] + C2*row[2] + C4*row[4] + C6*row[6] + (1<<(ROW_SHIFT-1));
-        a1 = C4*row[0] + C6*row[2] - C4*row[4] - C2*row[6] + (1<<(ROW_SHIFT-1));
-        a2 = C4*row[0] - C6*row[2] - C4*row[4] + C2*row[6] + (1<<(ROW_SHIFT-1));
-        a3 = C4*row[0] - C2*row[2] + C4*row[4] - C6*row[6] + (1<<(ROW_SHIFT-1));
-
-        b0 = C1*row[1] + C3*row[3] + C5*row[5] + C7*row[7];
-        b1 = C3*row[1] - C7*row[3] - C1*row[5] - C5*row[7];
-        b2 = C5*row[1] - C1*row[3] + C7*row[5] + C3*row[7];
-        b3 = C7*row[1] - C5*row[3] + C3*row[5] - C1*row[7];
-
-        row[0] = (a0 + b0) >> ROW_SHIFT;
-        row[1] = (a1 + b1) >> ROW_SHIFT;
-        row[2] = (a2 + b2) >> ROW_SHIFT;
-        row[3] = (a3 + b3) >> ROW_SHIFT;
-        row[4] = (a3 - b3) >> ROW_SHIFT;
-        row[5] = (a2 - b2) >> ROW_SHIFT;
-        row[6] = (a1 - b1) >> ROW_SHIFT;
-        row[7] = (a0 - b0) >> ROW_SHIFT;
-
-        output[0]  = row[0];
-        output[2]  = row[1];
-        output[4]  = row[2];
-        output[6]  = row[3];
-        output[8]  = row[4];
-        output[10] = row[5];
-        output[12] = row[6];
-        output[14] = row[7];
-}
-#endif
-
 static inline void idct(int16_t *block)
 {
         DECLARE_ALIGNED(8, int64_t, align_tmp)[16];