summaryrefslogtreecommitdiff
path: root/libavcodec/simple_idct.c
diff options
context:
space:
mode:
authorMichael Niedermayer <michaelni@gmx.at>2011-07-21 16:27:55 +0200
committerMichael Niedermayer <michaelni@gmx.at>2011-07-21 16:28:53 +0200
commitf93f6963babf08a7bcf85b9a57f37266dc0a4ae0 (patch)
treed9729ad7db8cb9f9a6a5483ac960ef7a56310072 /libavcodec/simple_idct.c
parent8c2863b87f651bfce061d5b0e03cd756b049a553 (diff)
parente5985185d2eda942333ebbb72bd7d043ffe40be7 (diff)
downloadffmpeg-f93f6963babf08a7bcf85b9a57f37266dc0a4ae0.tar.gz
Merge remote-tracking branch 'qatar/master'
* qatar/master: rv30: return AVERROR(EINVAL) instead of EINVAL build: add -L flags before existing LDFLAGS simple_idct: whitespace cosmetics simple_idct: make repeated code a macro dsputil: remove huge #if 0 block simple_idct: change 10-bit add/put stride from pixels to bytes dsputil: allow 9/10-bit functions for non-h264 codecs dnxhd: rename some data tables dnxhdenc: remove inline from function only called through pointer dnxhdenc: whitespace cosmetics swscale: mark YUV422P10(LE,BE) as supported for output configure: add -xc99 to LDFLAGS for Sun CC Remove unused and non-compiling vestigial g729 decoder Remove unused code under G729_BITEXACT #ifdef. mpegvideo: fix invalid picture unreferencing. dsputil: Remove extra blank line at end. dsputil: Replace a LONG_MAX check with HAVE_FAST_64BIT. simple_idct: add 10-bit version Conflicts: Makefile libavcodec/g729data.h libavcodec/g729dec.c libavcodec/rv30.c tests/ref/lavfi/pixdesc tests/ref/lavfi/pixfmts_copy tests/ref/lavfi/pixfmts_null tests/ref/lavfi/pixfmts_scale tests/ref/lavfi/pixfmts_vflip Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/simple_idct.c')
-rw-r--r--libavcodec/simple_idct.c338
1 files changed, 9 insertions, 329 deletions
diff --git a/libavcodec/simple_idct.c b/libavcodec/simple_idct.c
index 06f3624ba3..ffe5a0b070 100644
--- a/libavcodec/simple_idct.c
+++ b/libavcodec/simple_idct.c
@@ -25,339 +25,19 @@
* simpleidct in C.
*/
-/*
- based upon some outcommented c code from mpeg2dec (idct_mmx.c
- written by Aaron Holtzman <aholtzma@ess.engr.uvic.ca>)
- */
-
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
#include "dsputil.h"
#include "mathops.h"
#include "simple_idct.h"
-#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
-#define W4 16383 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-#define W5 12873 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-#define W6 8867 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-#define W7 4520 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
-#define ROW_SHIFT 11
-#define COL_SHIFT 20 // 6
-
-static inline void idctRowCondDC (DCTELEM * row)
-{
- int a0, a1, a2, a3, b0, b1, b2, b3;
-
-#if HAVE_FAST_64BIT
-#define ROW0_MASK (0xffffLL << 48 * HAVE_BIGENDIAN)
- if (((((uint64_t *)row)[0] & ~ROW0_MASK) | ((uint64_t *)row)[1]) == 0) {
- uint64_t temp = (row[0] << 3) & 0xffff;
- temp += temp << 16;
- temp += temp << 32;
- ((uint64_t *)row)[0] = temp;
- ((uint64_t *)row)[1] = temp;
- return;
- }
-#else
- if (!(((uint32_t*)row)[1] |
- ((uint32_t*)row)[2] |
- ((uint32_t*)row)[3] |
- row[1])) {
- uint32_t temp = (row[0] << 3) & 0xffff;
- temp += temp << 16;
- ((uint32_t*)row)[0]=((uint32_t*)row)[1] =
- ((uint32_t*)row)[2]=((uint32_t*)row)[3] = temp;
- return;
- }
-#endif
-
- a0 = (W4 * row[0]) + (1 << (ROW_SHIFT - 1));
- a1 = a0;
- a2 = a0;
- a3 = a0;
-
- /* no need to optimize : gcc does it */
- a0 += W2 * row[2];
- a1 += W6 * row[2];
- a2 -= W6 * row[2];
- a3 -= W2 * row[2];
-
- b0 = MUL16(W1, row[1]);
- MAC16(b0, W3, row[3]);
- b1 = MUL16(W3, row[1]);
- MAC16(b1, -W7, row[3]);
- b2 = MUL16(W5, row[1]);
- MAC16(b2, -W1, row[3]);
- b3 = MUL16(W7, row[1]);
- MAC16(b3, -W5, row[3]);
-
- if (AV_RN64A(row + 4)) {
- a0 += W4*row[4] + W6*row[6];
- a1 += - W4*row[4] - W2*row[6];
- a2 += - W4*row[4] + W2*row[6];
- a3 += W4*row[4] - W6*row[6];
-
- MAC16(b0, W5, row[5]);
- MAC16(b0, W7, row[7]);
-
- MAC16(b1, -W1, row[5]);
- MAC16(b1, -W5, row[7]);
-
- MAC16(b2, W7, row[5]);
- MAC16(b2, W3, row[7]);
-
- MAC16(b3, W3, row[5]);
- MAC16(b3, -W1, row[7]);
- }
-
- row[0] = (a0 + b0) >> ROW_SHIFT;
- row[7] = (a0 - b0) >> ROW_SHIFT;
- row[1] = (a1 + b1) >> ROW_SHIFT;
- row[6] = (a1 - b1) >> ROW_SHIFT;
- row[2] = (a2 + b2) >> ROW_SHIFT;
- row[5] = (a2 - b2) >> ROW_SHIFT;
- row[3] = (a3 + b3) >> ROW_SHIFT;
- row[4] = (a3 - b3) >> ROW_SHIFT;
-}
-
-static inline void idctSparseColPut (uint8_t *dest, int line_size,
- DCTELEM * col)
-{
- int a0, a1, a2, a3, b0, b1, b2, b3;
- uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
-
- /* XXX: I did that only to give same values as previous code */
- a0 = W4 * (col[8*0] + ((1<<(COL_SHIFT-1))/W4));
- a1 = a0;
- a2 = a0;
- a3 = a0;
-
- a0 += + W2*col[8*2];
- a1 += + W6*col[8*2];
- a2 += - W6*col[8*2];
- a3 += - W2*col[8*2];
-
- b0 = MUL16(W1, col[8*1]);
- b1 = MUL16(W3, col[8*1]);
- b2 = MUL16(W5, col[8*1]);
- b3 = MUL16(W7, col[8*1]);
-
- MAC16(b0, + W3, col[8*3]);
- MAC16(b1, - W7, col[8*3]);
- MAC16(b2, - W1, col[8*3]);
- MAC16(b3, - W5, col[8*3]);
-
- if(col[8*4]){
- a0 += + W4*col[8*4];
- a1 += - W4*col[8*4];
- a2 += - W4*col[8*4];
- a3 += + W4*col[8*4];
- }
-
- if (col[8*5]) {
- MAC16(b0, + W5, col[8*5]);
- MAC16(b1, - W1, col[8*5]);
- MAC16(b2, + W7, col[8*5]);
- MAC16(b3, + W3, col[8*5]);
- }
-
- if(col[8*6]){
- a0 += + W6*col[8*6];
- a1 += - W2*col[8*6];
- a2 += + W2*col[8*6];
- a3 += - W6*col[8*6];
- }
-
- if (col[8*7]) {
- MAC16(b0, + W7, col[8*7]);
- MAC16(b1, - W5, col[8*7]);
- MAC16(b2, + W3, col[8*7]);
- MAC16(b3, - W1, col[8*7]);
- }
-
- dest[0] = cm[(a0 + b0) >> COL_SHIFT];
- dest += line_size;
- dest[0] = cm[(a1 + b1) >> COL_SHIFT];
- dest += line_size;
- dest[0] = cm[(a2 + b2) >> COL_SHIFT];
- dest += line_size;
- dest[0] = cm[(a3 + b3) >> COL_SHIFT];
- dest += line_size;
- dest[0] = cm[(a3 - b3) >> COL_SHIFT];
- dest += line_size;
- dest[0] = cm[(a2 - b2) >> COL_SHIFT];
- dest += line_size;
- dest[0] = cm[(a1 - b1) >> COL_SHIFT];
- dest += line_size;
- dest[0] = cm[(a0 - b0) >> COL_SHIFT];
-}
-
-static inline void idctSparseColAdd (uint8_t *dest, int line_size,
- DCTELEM * col)
-{
- int a0, a1, a2, a3, b0, b1, b2, b3;
- uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
-
- /* XXX: I did that only to give same values as previous code */
- a0 = W4 * (col[8*0] + ((1<<(COL_SHIFT-1))/W4));
- a1 = a0;
- a2 = a0;
- a3 = a0;
-
- a0 += + W2*col[8*2];
- a1 += + W6*col[8*2];
- a2 += - W6*col[8*2];
- a3 += - W2*col[8*2];
-
- b0 = MUL16(W1, col[8*1]);
- b1 = MUL16(W3, col[8*1]);
- b2 = MUL16(W5, col[8*1]);
- b3 = MUL16(W7, col[8*1]);
+#define BIT_DEPTH 8
+#include "simple_idct_template.c"
+#undef BIT_DEPTH
- MAC16(b0, + W3, col[8*3]);
- MAC16(b1, - W7, col[8*3]);
- MAC16(b2, - W1, col[8*3]);
- MAC16(b3, - W5, col[8*3]);
-
- if(col[8*4]){
- a0 += + W4*col[8*4];
- a1 += - W4*col[8*4];
- a2 += - W4*col[8*4];
- a3 += + W4*col[8*4];
- }
-
- if (col[8*5]) {
- MAC16(b0, + W5, col[8*5]);
- MAC16(b1, - W1, col[8*5]);
- MAC16(b2, + W7, col[8*5]);
- MAC16(b3, + W3, col[8*5]);
- }
-
- if(col[8*6]){
- a0 += + W6*col[8*6];
- a1 += - W2*col[8*6];
- a2 += + W2*col[8*6];
- a3 += - W6*col[8*6];
- }
-
- if (col[8*7]) {
- MAC16(b0, + W7, col[8*7]);
- MAC16(b1, - W5, col[8*7]);
- MAC16(b2, + W3, col[8*7]);
- MAC16(b3, - W1, col[8*7]);
- }
-
- dest[0] = cm[dest[0] + ((a0 + b0) >> COL_SHIFT)];
- dest += line_size;
- dest[0] = cm[dest[0] + ((a1 + b1) >> COL_SHIFT)];
- dest += line_size;
- dest[0] = cm[dest[0] + ((a2 + b2) >> COL_SHIFT)];
- dest += line_size;
- dest[0] = cm[dest[0] + ((a3 + b3) >> COL_SHIFT)];
- dest += line_size;
- dest[0] = cm[dest[0] + ((a3 - b3) >> COL_SHIFT)];
- dest += line_size;
- dest[0] = cm[dest[0] + ((a2 - b2) >> COL_SHIFT)];
- dest += line_size;
- dest[0] = cm[dest[0] + ((a1 - b1) >> COL_SHIFT)];
- dest += line_size;
- dest[0] = cm[dest[0] + ((a0 - b0) >> COL_SHIFT)];
-}
-
-static inline void idctSparseCol (DCTELEM * col)
-{
- int a0, a1, a2, a3, b0, b1, b2, b3;
-
- /* XXX: I did that only to give same values as previous code */
- a0 = W4 * (col[8*0] + ((1<<(COL_SHIFT-1))/W4));
- a1 = a0;
- a2 = a0;
- a3 = a0;
-
- a0 += + W2*col[8*2];
- a1 += + W6*col[8*2];
- a2 += - W6*col[8*2];
- a3 += - W2*col[8*2];
-
- b0 = MUL16(W1, col[8*1]);
- b1 = MUL16(W3, col[8*1]);
- b2 = MUL16(W5, col[8*1]);
- b3 = MUL16(W7, col[8*1]);
-
- MAC16(b0, + W3, col[8*3]);
- MAC16(b1, - W7, col[8*3]);
- MAC16(b2, - W1, col[8*3]);
- MAC16(b3, - W5, col[8*3]);
-
- if(col[8*4]){
- a0 += + W4*col[8*4];
- a1 += - W4*col[8*4];
- a2 += - W4*col[8*4];
- a3 += + W4*col[8*4];
- }
-
- if (col[8*5]) {
- MAC16(b0, + W5, col[8*5]);
- MAC16(b1, - W1, col[8*5]);
- MAC16(b2, + W7, col[8*5]);
- MAC16(b3, + W3, col[8*5]);
- }
-
- if(col[8*6]){
- a0 += + W6*col[8*6];
- a1 += - W2*col[8*6];
- a2 += + W2*col[8*6];
- a3 += - W6*col[8*6];
- }
-
- if (col[8*7]) {
- MAC16(b0, + W7, col[8*7]);
- MAC16(b1, - W5, col[8*7]);
- MAC16(b2, + W3, col[8*7]);
- MAC16(b3, - W1, col[8*7]);
- }
-
- col[0 ] = ((a0 + b0) >> COL_SHIFT);
- col[8 ] = ((a1 + b1) >> COL_SHIFT);
- col[16] = ((a2 + b2) >> COL_SHIFT);
- col[24] = ((a3 + b3) >> COL_SHIFT);
- col[32] = ((a3 - b3) >> COL_SHIFT);
- col[40] = ((a2 - b2) >> COL_SHIFT);
- col[48] = ((a1 - b1) >> COL_SHIFT);
- col[56] = ((a0 - b0) >> COL_SHIFT);
-}
-
-void ff_simple_idct_put(uint8_t *dest, int line_size, DCTELEM *block)
-{
- int i;
- for(i=0; i<8; i++)
- idctRowCondDC(block + i*8);
-
- for(i=0; i<8; i++)
- idctSparseColPut(dest + i, line_size, block + i);
-}
-
-void ff_simple_idct_add(uint8_t *dest, int line_size, DCTELEM *block)
-{
- int i;
- for(i=0; i<8; i++)
- idctRowCondDC(block + i*8);
-
- for(i=0; i<8; i++)
- idctSparseColAdd(dest + i, line_size, block + i);
-}
-
-void ff_simple_idct(DCTELEM *block)
-{
- int i;
- for(i=0; i<8; i++)
- idctRowCondDC(block + i*8);
-
- for(i=0; i<8; i++)
- idctSparseCol(block + i);
-}
+#define BIT_DEPTH 10
+#include "simple_idct_template.c"
+#undef BIT_DEPTH
/* 2x4x8 idct */
@@ -428,7 +108,7 @@ void ff_simple_idct248_put(uint8_t *dest, int line_size, DCTELEM *block)
/* IDCT8 on each line */
for(i=0; i<8; i++) {
- idctRowCondDC(block + i*8);
+ idctRowCondDC_8(block + i*8);
}
/* IDCT4 and store */
@@ -503,7 +183,7 @@ void ff_simple_idct84_add(uint8_t *dest, int line_size, DCTELEM *block)
/* IDCT8 on each line */
for(i=0; i<4; i++) {
- idctRowCondDC(block + i*8);
+ idctRowCondDC_8(block + i*8);
}
/* IDCT4 and store */
@@ -523,7 +203,7 @@ void ff_simple_idct48_add(uint8_t *dest, int line_size, DCTELEM *block)
/* IDCT8 and store */
for(i=0; i<4; i++){
- idctSparseColAdd(dest + i, line_size, block + i);
+ idctSparseColAdd_8(dest + i, line_size, block + i);
}
}