Commit 47d545f1 authored by Yaowu Xu's avatar Yaowu Xu

a bit code clean-up

Removed some transform code that is not in use.

Change-Id: I9489af7e23d9d7fe052feb6c8bbafa62ebbda39c
parent b92a96d8
......@@ -22,7 +22,7 @@ const unsigned char vp8_block2above[25] =
0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 4, 5, 4, 5, 6, 7, 6, 7, 8
};
#if CONFIG_T8X8
const unsigned char vp8_block2left_8x8[25] =
{
0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 4, 4, 4, 4, 6, 6, 6, 6, 8
......@@ -31,6 +31,6 @@ const unsigned char vp8_block2above_8x8[25] =
{
0, 0, 0, 0, 2, 2, 2, 2, 0, 0, 0, 0, 2, 2, 2, 2, 4, 4, 4, 4, 6, 6, 6, 6, 8
};
#endif
......@@ -72,11 +72,6 @@ extern const unsigned char vp8_block2above_8x8[25];
#define VP8_COMBINEENTROPYCONTEXTS( Dest, A, B) \
Dest = ((A)!=0) + ((B)!=0);
#if CONFIG_T8X8
#define VP8_COMBINEENTROPYCONTEXTS_8x8( Dest, A1, B1, A2, B2) \
Dest = ((A1)!=0 || (A2)!=0) + ((B1)!=0 || (B2)!=0);
#endif
typedef enum
{
KEY_FRAME = 0,
......
......@@ -32,10 +32,8 @@ void vp8_machine_specific_config(VP8_COMMON *ctx)
rtcd->idct.iwalsh16 = vp8_short_inv_walsh4x4_c;
#if CONFIG_T8X8
rtcd->idct.idct8 = vp8_short_idct8x8_c;
rtcd->idct.idct8_1 = vp8_short_idct8x8_1_c;
rtcd->idct.idct1_scalar_add_8x8 = vp8_dc_only_idct_add_8x8_c;
rtcd->idct.ihaar2 = vp8_short_ihaar2x2_c;
rtcd->idct.ihaar2_1 = vp8_short_ihaar2x2_1_c;
#endif
rtcd->recon.copy16x16 = vp8_copy_mem16x16_c;
rtcd->recon.copy8x8 = vp8_copy_mem8x8_c;
......
......@@ -201,35 +201,11 @@ void vp8_short_inv_walsh4x4_1_c(short *input, short *output)
}
#if CONFIG_T8X8
#define FAST_IDCT_8X8
void vp8_short_idct8x8_1_c(short *input, short *output, int pitch)
{
int i, b;
int a1;
short *op = output;
short *orig_op = output;
int shortpitch = pitch >> 1;
//a1 = ((input[0] + 4) >> 3);
a1 = ((input[0] + 16) >> 5);
for (b = 0; b < 4; b++)
{
for (i = 0; i < 4; i++)
{
op[0] = a1;
op[1] = a1;
op[2] = a1;
op[3] = a1;
op += shortpitch;
}
op = orig_op + (b+1)%2*4 +(b+1)/2*4*shortpitch;
}
}
void vp8_dc_only_idct_add_8x8_c(short input_dc, unsigned char *pred_ptr, unsigned char *dst_ptr, int pitch, int stride)
void vp8_dc_only_idct_add_8x8_c(short input_dc,
unsigned char *pred_ptr,
unsigned char *dst_ptr,
int pitch, int stride)
{
//int a1 = ((input_dc + 4) >> 3);
int a1 = ((input_dc + 16) >> 5);
int r, c, b;
unsigned char *orig_pred = pred_ptr;
......@@ -259,8 +235,6 @@ void vp8_dc_only_idct_add_8x8_c(short input_dc, unsigned char *pred_ptr, unsigne
}
}
#ifdef FAST_IDCT_8X8
#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) */
......@@ -277,53 +251,53 @@ void vp8_dc_only_idct_add_8x8_c(short input_dc, unsigned char *pred_ptr, unsigne
static void idctrow (int *blk)
{
int x0, x1, x2, x3, x4, x5, x6, x7, x8;
/* shortcut */
if (!((x1 = blk[4] << 11) | (x2 = blk[6]) | (x3 = blk[2]) |
int x0, x1, x2, x3, x4, x5, x6, x7, x8;
/* shortcut */
if (!((x1 = blk[4] << 11) | (x2 = blk[6]) | (x3 = blk[2]) |
(x4 = blk[1]) | (x5 = blk[7]) | (x6 = blk[5]) | (x7 = blk[3])))
{
blk[0] = blk[1] = blk[2] = blk[3] = blk[4] = blk[5] = blk[6] = blk[7] = blk[0] << 3;
return;
}
x0 = (blk[0] << 11) + 128; /* for proper rounding in the fourth stage */
/* first stage */
x8 = W7 * (x4 + x5);
x4 = x8 + (W1 - W7) * x4;
x5 = x8 - (W1 + W7) * x5;
x8 = W3 * (x6 + x7);
x6 = x8 - (W3 - W5) * x6;
x7 = x8 - (W3 + W5) * x7;
/* second stage */
x8 = x0 + x1;
x0 -= x1;
x1 = W6 * (x3 + x2);
x2 = x1 - (W2 + W6) * x2;
x3 = x1 + (W2 - W6) * x3;
x1 = x4 + x6;
x4 -= x6;
x6 = x5 + x7;
x5 -= x7;
/* third stage */
x7 = x8 + x3;
x8 -= x3;
x3 = x0 + x2;
x0 -= x2;
x2 = (181 * (x4 + x5) + 128) >> 8;
x4 = (181 * (x4 - x5) + 128) >> 8;
/* fourth stage */
blk[0] = (x7 + x1) >> 8;
blk[1] = (x3 + x2) >> 8;
blk[2] = (x0 + x4) >> 8;
blk[3] = (x8 + x6) >> 8;
blk[4] = (x8 - x6) >> 8;
blk[5] = (x0 - x4) >> 8;
blk[6] = (x3 - x2) >> 8;
blk[7] = (x7 - x1) >> 8;
{
blk[0] = blk[1] = blk[2] = blk[3] = blk[4]
= blk[5] = blk[6] = blk[7] = blk[0] << 3;
return;
}
x0 = (blk[0] << 11) + 128; /* for proper rounding in the fourth stage */
/* first stage */
x8 = W7 * (x4 + x5);
x4 = x8 + (W1 - W7) * x4;
x5 = x8 - (W1 + W7) * x5;
x8 = W3 * (x6 + x7);
x6 = x8 - (W3 - W5) * x6;
x7 = x8 - (W3 + W5) * x7;
/* second stage */
x8 = x0 + x1;
x0 -= x1;
x1 = W6 * (x3 + x2);
x2 = x1 - (W2 + W6) * x2;
x3 = x1 + (W2 - W6) * x3;
x1 = x4 + x6;
x4 -= x6;
x6 = x5 + x7;
x5 -= x7;
/* third stage */
x7 = x8 + x3;
x8 -= x3;
x3 = x0 + x2;
x0 -= x2;
x2 = (181 * (x4 + x5) + 128) >> 8;
x4 = (181 * (x4 - x5) + 128) >> 8;
/* fourth stage */
blk[0] = (x7 + x1) >> 8;
blk[1] = (x3 + x2) >> 8;
blk[2] = (x0 + x4) >> 8;
blk[3] = (x8 + x6) >> 8;
blk[4] = (x8 - x6) >> 8;
blk[5] = (x0 - x4) >> 8;
blk[6] = (x3 - x2) >> 8;
blk[7] = (x7 - x1) >> 8;
}
/* column (vertical) IDCT
......@@ -334,59 +308,61 @@ static void idctrow (int *blk)
* where: c[0] = 1/1024 c[1..7] = (1/1024)*sqrt(2) */
static void idctcol (int *blk)
{
int x0, x1, x2, x3, x4, x5, x6, x7, x8;
/* shortcut */
if (!((x1 = (blk[8 * 4] << 8)) | (x2 = blk[8 * 6]) | (x3 = blk[8 * 2]) |
(x4 = blk[8 * 1]) | (x5 = blk[8 * 7]) | (x6 = blk[8 * 5]) | (x7 = blk[8 * 3])))
{
blk[8 * 0] = blk[8 * 1] = blk[8 * 2] = blk[8 * 3] = blk[8 * 4] = blk[8 * 5] = blk[8 * 6] = blk[8 * 7] =
((blk[8 * 0] + 32) >> 6);
return;
}
x0 = (blk[8 * 0] << 8) + 16384;
/* first stage */
x8 = W7 * (x4 + x5) + 4;
x4 = (x8 + (W1 - W7) * x4) >> 3;
x5 = (x8 - (W1 + W7) * x5) >> 3;
x8 = W3 * (x6 + x7) + 4;
x6 = (x8 - (W3 - W5) * x6) >> 3;
x7 = (x8 - (W3 + W5) * x7) >> 3;
/* second stage */
x8 = x0 + x1;
x0 -= x1;
x1 = W6 * (x3 + x2) + 4;
x2 = (x1 - (W2 + W6) * x2) >> 3;
x3 = (x1 + (W2 - W6) * x3) >> 3;
x1 = x4 + x6;
x4 -= x6;
x6 = x5 + x7;
x5 -= x7;
/* third stage */
x7 = x8 + x3;
x8 -= x3;
x3 = x0 + x2;
x0 -= x2;
x2 = (181 * (x4 + x5) + 128) >> 8;
x4 = (181 * (x4 - x5) + 128) >> 8;
/* fourth stage */
blk[8 * 0] = (x7 + x1 ) >> 14;
blk[8 * 1] = (x3 + x2 ) >> 14;
blk[8 * 2] = (x0 + x4 ) >> 14;
blk[8 * 3] = (x8 + x6 ) >> 14;
blk[8 * 4] = (x8 - x6 ) >> 14;
blk[8 * 5] = (x0 - x4 ) >> 14;
blk[8 * 6] = (x3 - x2 ) >> 14;
blk[8 * 7] = (x7 - x1 ) >> 14;
int x0, x1, x2, x3, x4, x5, x6, x7, x8;
/* shortcut */
if (!((x1 = (blk[8 * 4] << 8)) | (x2 = blk[8 * 6]) | (x3 = blk[8 * 2]) |
(x4 = blk[8 * 1]) | (x5 = blk[8 * 7]) | (x6 = blk[8 * 5]) |
(x7 = blk[8 * 3])))
{
blk[8 * 0] = blk[8 * 1] = blk[8 * 2] = blk[8 * 3]
= blk[8 * 4] = blk[8 * 5] = blk[8 * 6]
= blk[8 * 7] = ((blk[8 * 0] + 32) >>6);
return;
}
x0 = (blk[8 * 0] << 8) + 16384;
/* first stage */
x8 = W7 * (x4 + x5) + 4;
x4 = (x8 + (W1 - W7) * x4) >> 3;
x5 = (x8 - (W1 + W7) * x5) >> 3;
x8 = W3 * (x6 + x7) + 4;
x6 = (x8 - (W3 - W5) * x6) >> 3;
x7 = (x8 - (W3 + W5) * x7) >> 3;
/* second stage */
x8 = x0 + x1;
x0 -= x1;
x1 = W6 * (x3 + x2) + 4;
x2 = (x1 - (W2 + W6) * x2) >> 3;
x3 = (x1 + (W2 - W6) * x3) >> 3;
x1 = x4 + x6;
x4 -= x6;
x6 = x5 + x7;
x5 -= x7;
/* third stage */
x7 = x8 + x3;
x8 -= x3;
x3 = x0 + x2;
x0 -= x2;
x2 = (181 * (x4 + x5) + 128) >> 8;
x4 = (181 * (x4 - x5) + 128) >> 8;
/* fourth stage */
blk[8 * 0] = (x7 + x1 ) >> 14;
blk[8 * 1] = (x3 + x2 ) >> 14;
blk[8 * 2] = (x0 + x4 ) >> 14;
blk[8 * 3] = (x8 + x6 ) >> 14;
blk[8 * 4] = (x8 - x6 ) >> 14;
blk[8 * 5] = (x0 - x4 ) >> 14;
blk[8 * 6] = (x3 - x2 ) >> 14;
blk[8 * 7] = (x7 - x1 ) >> 14;
}
#define TX_DIM 8
void vp8_short_idct8x8_c(short *coefs, short *block, int pitch)
// an approximate 8x8 dct implementation, but not used
{
int X[TX_DIM*TX_DIM];
int i,j;
......@@ -396,87 +372,25 @@ void vp8_short_idct8x8_c(short *coefs, short *block, int pitch)
{
for (j = 0; j < TX_DIM; j++)
{
X[i * TX_DIM + j] = (int)(coefs[i * TX_DIM + j]+1
+ (coefs[i * TX_DIM + j]<0))>>2;
X[i * TX_DIM + j] = (int)(coefs[i * TX_DIM + j]+1
+ (coefs[i * TX_DIM + j]<0))>>2;
}
}
for (i = 0; i < 8; i++)
idctrow (X + 8 * i);
for (i = 0; i < 8; i++)
idctrow (X + 8 * i);
for (i = 0; i < 8; i++)
idctcol (X + i);
for (i = 0; i < 8; i++)
idctcol (X + i);
for (i = 0; i < TX_DIM; i++)
{
for (j = 0; j < TX_DIM; j++)
{
block[i*shortpitch+j] = X[i * TX_DIM + j]>>1;
block[i*shortpitch+j] = X[i * TX_DIM + j]>>1;
}
}
}
#else
/* This is really for testing */
void vp8_short_idct8x8_c(short *input, short *output, int pitch)
{
int X[8][8];
double C[8][8]={{0.0}}, Ct[8][8]={{0.0}}, temp[8][8]={{0.0}};
int i,j,k;
double temp1=0.0;
double pi = atan( 1.0 ) * 4.0;
//static int count=0;
int shortpitch = pitch >> 1;
for (i = 0; i < 8; i++)
{
for (j = 0; j < 8; j++)
{
X[i][j] = input[i * 8 + j];
}
}
// TODO: DCT matrix should be calculated once for all
for ( j = 0 ; j < 8 ; j++ ) {
C[ 0 ][ j ] = 1.0 / sqrt( (double) 8 );
Ct[ j ][ 0 ] = C[ 0 ][ j ];
}
for ( i = 1 ; i < 8 ; i++ ) {
for ( j = 0 ; j < 8 ; j++ ) {
C[ i ][ j ] = sqrt( 2.0 / 8 ) *
cos( pi * ( 2 * j + 1 ) * i / ( 2.0 * 8 ) );
Ct[ j ][ i ] = C[ i ][ j ];
}
}
/* MatrixMultiply( temp, input, C ); */
for ( i = 0 ; i < 8 ; i++ ) {
for ( j = 0 ; j < 8 ; j++ ) {
temp[ i ][ j ] = 0.0;
for ( k = 0 ; k < 8 ; k++ )
temp[ i ][ j ] += X[ i ][ k ] * C[ k ][ j ];
}
}
/* MatrixMultiply( output, Ct, temp ); */
for ( i = 0 ; i < 8 ; i++ ) {
for ( j = 0 ; j < 8 ; j++ ) {
temp1 = 0.0;
for ( k = 0 ; k < 8 ; k++ )
temp1 += Ct[ i ][ k ] * temp[ k ][ j ];
X[ i ][ j ] = floor( temp1/ 2.0 + 0.5);
}
}
for (i = 0; i < 8; i++)
{
for (j = 0; j < 8; j++)
{
output[i*shortpitch+j] = X[i][j];
}
}
}
#endif
void vp8_short_ihaar2x2_c(short *input, short *output, int pitch)
{
......@@ -494,16 +408,4 @@ void vp8_short_ihaar2x2_c(short *input, short *output, int pitch)
op[8] = (ip[0] - ip[1] - ip[4] + ip[8])>>1;
}
void vp8_short_ihaar2x2_1_c(short *input, short *output, int pitch)
{
int a1;
short *ip = input;
short *op = output;
a1 = ip[0]>> 2;
op[0] = a1;
op[2] = a1;
op[8] = a1;
op[10] = a1;
}
#endif
......@@ -106,6 +106,7 @@ void vp8_encode_inter16x16y(const struct VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x);
#if CONFIG_T8X8
void vp8_transform_mb_8x8(MACROBLOCK *mb);
void vp8_transform_mby_8x8(MACROBLOCK *x);
void vp8_transform_mbuv_8x8(MACROBLOCK *x);
void vp8_transform_intra_mby_8x8(MACROBLOCK *x);
void vp8_build_dcblock_8x8(MACROBLOCK *b);
......
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