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authorMichael Niedermayer <michaelni@gmx.at>2004-01-29 01:15:25 +0000
committerMichael Niedermayer <michaelni@gmx.at>2004-01-29 01:15:25 +0000
commit8fd19ab286ea352eff0e2162d0fc5e49fb21110e (patch)
tree1fb25543328acbe9551c253c878ab3ec999c8999 /libavcodec
parent5a60360712c331b329e4f6e122b87bd288b20819 (diff)
downloadffmpeg-8fd19ab286ea352eff0e2162d0fc5e49fb21110e.tar.gz
SSE2 fdct by (Balatoni Denes <pnis at coder dot hu>)
Originally committed as revision 2729 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
-rw-r--r--libavcodec/dsputil.h1
-rw-r--r--libavcodec/i386/dsputil_mmx.c4
-rw-r--r--libavcodec/i386/fdct_mmx.c222
-rw-r--r--libavcodec/i386/mpegvideo_mmx.c10
4 files changed, 228 insertions, 9 deletions
diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h
index 9b9a3ca846..fbe2c684e1 100644
--- a/libavcodec/dsputil.h
+++ b/libavcodec/dsputil.h
@@ -45,6 +45,7 @@ void j_rev_dct (DCTELEM *data);
void ff_fdct_mmx(DCTELEM *block);
void ff_fdct_mmx2(DCTELEM *block);
+void ff_fdct_sse2(DCTELEM *block);
/* encoding scans */
extern const uint8_t ff_alternate_horizontal_scan[64];
diff --git a/libavcodec/i386/dsputil_mmx.c b/libavcodec/i386/dsputil_mmx.c
index 4ff75f763e..6c6f108372 100644
--- a/libavcodec/i386/dsputil_mmx.c
+++ b/libavcodec/i386/dsputil_mmx.c
@@ -2032,7 +2032,9 @@ void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx)
#ifdef CONFIG_ENCODERS
if(dct_algo==FF_DCT_AUTO || dct_algo==FF_DCT_MMX){
- if(mm_flags & MM_MMXEXT){
+ if(mm_flags & MM_SSE2){
+ c->fdct = ff_fdct_sse2;
+ }else if(mm_flags & MM_MMXEXT){
c->fdct = ff_fdct_mmx2;
}else{
c->fdct = ff_fdct_mmx;
diff --git a/libavcodec/i386/fdct_mmx.c b/libavcodec/i386/fdct_mmx.c
index 2f0f82b009..8771607730 100644
--- a/libavcodec/i386/fdct_mmx.c
+++ b/libavcodec/i386/fdct_mmx.c
@@ -2,11 +2,16 @@
* MMX optimized forward DCT
* The gcc porting is Copyright (c) 2001 Fabrice Bellard.
* cleanup/optimizations are Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ * SSE2 optimization is Copyright (c) 2004 Denes Balatoni.
*
* from fdctam32.c - AP922 MMX(3D-Now) forward-DCT
*
* Intel Application Note AP-922 - fast, precise implementation of DCT
* http://developer.intel.com/vtune/cbts/appnotes.htm
+ *
+ * Also of inspiration:
+ * a page about fdct at http://www.geocities.com/ssavekar/dct.htm
+ * Skal's fdct at http://skal.planet-d.net/coding/dct.html
*/
#include "../common.h"
#include "mmx.h"
@@ -27,10 +32,8 @@
#define BITS_FRW_ACC 3 //; 2 or 3 for accuracy
#define SHIFT_FRW_COL BITS_FRW_ACC
#define SHIFT_FRW_ROW (BITS_FRW_ACC + 17 - 3)
-//#define RND_FRW_ROW (262144 * (BITS_FRW_ACC - 1)) //; 1 << (SHIFT_FRW_ROW-1)
#define RND_FRW_ROW (1 << (SHIFT_FRW_ROW-1))
-//#define RND_FRW_COL (2 * (BITS_FRW_ACC - 1)) //; 1 << (SHIFT_FRW_COL-1)
-#define RND_FRW_COL (1 << (SHIFT_FRW_COL-1))
+//#define RND_FRW_COL (1 << (SHIFT_FRW_COL-1))
//concatenated table, for forward DCT transformation
static const int16_t fdct_tg_all_16[] ATTR_ALIGN(8) = {
@@ -38,17 +41,17 @@ static const int16_t fdct_tg_all_16[] ATTR_ALIGN(8) = {
27146, 27146, 27146, 27146, // tg * (2<<16) + 0.5
-21746, -21746, -21746, -21746, // tg * (2<<16) + 0.5
};
-static const int16_t cos_4_16[4] ATTR_ALIGN(8) = {
- -19195, -19195, -19195, -19195, //cos * (2<<16) + 0.5
-};
static const int16_t ocos_4_16[4] ATTR_ALIGN(8) = {
23170, 23170, 23170, 23170, //cos * (2<<15) + 0.5
};
-static const long long fdct_one_corr ATTR_ALIGN(8) = 0x0001000100010001LL;
+static const long long fdct_one_corr ATTR_ALIGN(8) = 0x0001000100010001LL;
+
static const long fdct_r_row[2] ATTR_ALIGN(8) = {RND_FRW_ROW, RND_FRW_ROW };
+static const long fdct_r_row_sse2[4] ATTR_ALIGN(16) = {RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW};
+
static const int16_t tab_frw_01234567[] ATTR_ALIGN(8) = { // forward_dct coeff table
16384, 16384, -8867, -21407,
16384, 16384, 21407, 8867,
@@ -123,6 +126,133 @@ static const int16_t tab_frw_01234567[] ATTR_ALIGN(8) = { // forward_dct coeff
6270, 26722, 6270, -17855,
};
+static const int16_t tab_frw_01234567_sse2[] ATTR_ALIGN(16) = { // forward_dct coeff table
+#define TABLE_SSE2 C4, C4, C1, C3, -C6, -C2, -C1, -C5, \
+ C4, C4, C5, C7, C2, C6, C3, -C7, \
+ -C4, C4, C7, C3, C6, -C2, C7, -C5, \
+ C4, -C4, C5, -C1, C2, -C6, C3, -C1,
+// c1..c7 * cos(pi/4) * 2^15
+#define C1 22725
+#define C2 21407
+#define C3 19266
+#define C4 16384
+#define C5 12873
+#define C6 8867
+#define C7 4520
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 31521
+#define C2 29692
+#define C3 26722
+#define C4 22725
+#define C5 17855
+#define C6 12299
+#define C7 6270
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 29692
+#define C2 27969
+#define C3 25172
+#define C4 21407
+#define C5 16819
+#define C6 11585
+#define C7 5906
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 26722
+#define C2 25172
+#define C3 22654
+#define C4 19266
+#define C5 15137
+#define C6 10426
+#define C7 5315
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 22725
+#define C2 21407
+#define C3 19266
+#define C4 16384
+#define C5 12873
+#define C6 8867
+#define C7 4520
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 26722
+#define C2 25172
+#define C3 22654
+#define C4 19266
+#define C5 15137
+#define C6 10426
+#define C7 5315
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 29692
+#define C2 27969
+#define C3 25172
+#define C4 21407
+#define C5 16819
+#define C6 11585
+#define C7 5906
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 31521
+#define C2 29692
+#define C3 26722
+#define C4 22725
+#define C5 17855
+#define C6 12299
+#define C7 6270
+TABLE_SSE2
+};
static always_inline void fdct_col(const int16_t *in, int16_t *out, int offset)
{
@@ -203,6 +333,69 @@ static always_inline void fdct_col(const int16_t *in, int16_t *out, int offset)
movq_r2m(mm3, *(out + offset + 7 * 8));
}
+
+static always_inline void fdct_row_sse2(const int16_t *in, int16_t *out)
+{
+ asm volatile(
+ ".macro FDCT_ROW_SSE2_H1 i t \n\t"
+ "movq \\i(%0), %%xmm2 \n\t"
+ "movq \\i+8(%0), %%xmm0 \n\t"
+ "movdqa \\t+32(%1), %%xmm3 \n\t"
+ "movdqa \\t+48(%1), %%xmm7 \n\t"
+ "movdqa \\t(%1), %%xmm4 \n\t"
+ "movdqa \\t+16(%1), %%xmm5 \n\t"
+ ".endm \n\t"
+ ".macro FDCT_ROW_SSE2_H2 i t \n\t"
+ "movq \\i(%0), %%xmm2 \n\t"
+ "movq \\i+8(%0), %%xmm0 \n\t"
+ "movdqa \\t+32(%1), %%xmm3 \n\t"
+ "movdqa \\t+48(%1), %%xmm7 \n\t"
+ ".endm \n\t"
+ ".macro FDCT_ROW_SSE2 i \n\t"
+ "movq %%xmm2, %%xmm1 \n\t"
+ "pshuflw $27, %%xmm0, %%xmm0 \n\t"
+ "paddsw %%xmm0, %%xmm1 \n\t"
+ "psubsw %%xmm0, %%xmm2 \n\t"
+ "punpckldq %%xmm2, %%xmm1 \n\t"
+ "pshufd $78, %%xmm1, %%xmm2 \n\t"
+ "pmaddwd %%xmm2, %%xmm3 \n\t"
+ "pmaddwd %%xmm1, %%xmm7 \n\t"
+ "pmaddwd %%xmm5, %%xmm2 \n\t"
+ "pmaddwd %%xmm4, %%xmm1 \n\t"
+ "paddd %%xmm7, %%xmm3 \n\t"
+ "paddd %%xmm2, %%xmm1 \n\t"
+ "paddd %%xmm6, %%xmm3 \n\t"
+ "paddd %%xmm6, %%xmm1 \n\t"
+ "psrad %3, %%xmm3 \n\t"
+ "psrad %3, %%xmm1 \n\t"
+ "packssdw %%xmm3, %%xmm1 \n\t"
+ "movdqa %%xmm1, \\i(%4) \n\t"
+ ".endm \n\t"
+ "movdqa (%2), %%xmm6 \n\t"
+ "FDCT_ROW_SSE2_H1 0 0 \n\t"
+ "FDCT_ROW_SSE2 0 \n\t"
+ "FDCT_ROW_SSE2_H2 64 0 \n\t"
+ "FDCT_ROW_SSE2 64 \n\t"
+
+ "FDCT_ROW_SSE2_H1 16 64 \n\t"
+ "FDCT_ROW_SSE2 16 \n\t"
+ "FDCT_ROW_SSE2_H2 112 64 \n\t"
+ "FDCT_ROW_SSE2 112 \n\t"
+
+ "FDCT_ROW_SSE2_H1 32 128 \n\t"
+ "FDCT_ROW_SSE2 32 \n\t"
+ "FDCT_ROW_SSE2_H2 96 128 \n\t"
+ "FDCT_ROW_SSE2 96 \n\t"
+
+ "FDCT_ROW_SSE2_H1 48 192 \n\t"
+ "FDCT_ROW_SSE2 48 \n\t"
+ "FDCT_ROW_SSE2_H2 80 192 \n\t"
+ "FDCT_ROW_SSE2 80 \n\t"
+ :
+ : "r" (in), "r" (tab_frw_01234567_sse2), "r" (fdct_r_row_sse2), "i" (SHIFT_FRW_ROW), "r" (out)
+ );
+}
+
static always_inline void fdct_row_mmx2(const int16_t *in, int16_t *out, const int16_t *table)
{
pshufw_m2r(*(in + 4), mm5, 0x1B);
@@ -341,3 +534,18 @@ void ff_fdct_mmx2(int16_t *block)
out += 8;
}
}
+
+void ff_fdct_sse2(int16_t *block)
+{
+ int64_t align_tmp[16] ATTR_ALIGN(8);
+ int16_t * const block_tmp= (int16_t*)align_tmp;
+ int16_t *block1;
+ int i;
+
+ block1 = block_tmp;
+ fdct_col(block, block1, 0);
+ fdct_col(block, block1, 4);
+
+ fdct_row_sse2(block1, block);
+}
+
diff --git a/libavcodec/i386/mpegvideo_mmx.c b/libavcodec/i386/mpegvideo_mmx.c
index daffd1d8d6..1c0e9f5ae3 100644
--- a/libavcodec/i386/mpegvideo_mmx.c
+++ b/libavcodec/i386/mpegvideo_mmx.c
@@ -683,6 +683,12 @@ static void denoise_dct_sse2(MpegEncContext *s, DCTELEM *block){
#define RENAMEl(a) a ## _mmx2
#include "mpegvideo_mmx_template.c"
+#undef RENAME
+#undef RENAMEl
+#define RENAME(a) a ## _SSE2
+#define RENAMEl(a) a ## _sse2
+#include "mpegvideo_mmx_template.c"
+
void MPV_common_init_mmx(MpegEncContext *s)
{
if (mm_flags & MM_MMX) {
@@ -704,7 +710,9 @@ void MPV_common_init_mmx(MpegEncContext *s)
}
if(dct_algo==FF_DCT_AUTO || dct_algo==FF_DCT_MMX){
- if(mm_flags & MM_MMXEXT){
+ if(mm_flags & MM_SSE2){
+ s->dct_quantize= dct_quantize_SSE2;
+ } else if(mm_flags & MM_MMXEXT){
s->dct_quantize= dct_quantize_MMX2;
} else {
s->dct_quantize= dct_quantize_MMX;