From c4a171482630978700c52e988801c950a7a92e30 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Tue, 20 Apr 2004 17:05:12 +0000 Subject: [PATCH] hadamard8_diff8x8 in AltiVec, the 16bits edition by (Romain Dolbeau ) Originally committed as revision 3036 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/ppc/dsputil_altivec.c | 131 ++++++++++++++++++++++++++++++- libavcodec/ppc/dsputil_altivec.h | 2 + libavcodec/ppc/dsputil_ppc.c | 13 ++- libavcodec/ppc/dsputil_ppc.h | 3 +- 4 files changed, 146 insertions(+), 3 deletions(-) diff --git a/libavcodec/ppc/dsputil_altivec.c b/libavcodec/ppc/dsputil_altivec.c index 633cae68b0..fff0b38106 100644 --- a/libavcodec/ppc/dsputil_altivec.c +++ b/libavcodec/ppc/dsputil_altivec.c @@ -1,7 +1,7 @@ /* * Copyright (c) 2002 Brian Foley * Copyright (c) 2002 Dieter Shirley - * Copyright (c) 2003 Romain Dolbeau + * Copyright (c) 2003-2004 Romain Dolbeau * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -1302,6 +1302,135 @@ POWERPC_PERF_STOP_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1); #endif /* ALTIVEC_USE_REFERENCE_C_CODE */ } +int hadamard8_diff8x8_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h){ +POWERPC_PERF_DECLARE(altivec_hadamard8_diff8x8_num, 1); + int sum; +POWERPC_PERF_START_COUNT(altivec_hadamard8_diff8x8_num, 1); + { + const_vector unsigned char vzero = (const_vector unsigned char)vec_splat_u8(0); +#ifdef CONFIG_DARWIN + const_vector signed short vprod1 = (const_vector signed short)( 1,-1, 1,-1, 1,-1, 1,-1); + const_vector signed short vprod2 = (const_vector signed short)( 1, 1,-1,-1, 1, 1,-1,-1); + const_vector signed short vprod3 = (const_vector signed short)( 1, 1, 1, 1,-1,-1,-1,-1); + const_vector unsigned char perm1 = (const_vector unsigned char) + (0x02, 0x03, 0x00, 0x01, + 0x06, 0x07, 0x04, 0x05, + 0x0A, 0x0B, 0x08, 0x09, + 0x0E, 0x0F, 0x0C, 0x0D); + const_vector unsigned char perm2 = (const_vector unsigned char) + (0x04, 0x05, 0x06, 0x07, + 0x00, 0x01, 0x02, 0x03, + 0x0C, 0x0D, 0x0E, 0x0F, + 0x08, 0x09, 0x0A, 0x0B); + const_vector unsigned char perm3 = (const_vector unsigned char) + (0x08, 0x09, 0x0A, 0x0B, + 0x0C, 0x0D, 0x0E, 0x0F, + 0x00, 0x01, 0x02, 0x03, + 0x04, 0x05, 0x06, 0x07); +#else + const_vector signed short vprod1 = (const_vector signed short){ 1,-1, 1,-1, 1,-1, 1,-1}; + const_vector signed short vprod2 = (const_vector signed short){ 1, 1,-1,-1, 1, 1,-1,-1}; + const_vector signed short vprod3 = (const_vector signed short){ 1, 1, 1, 1,-1,-1,-1,-1}; + const_vector unsigned char perm1 = (const_vector unsigned char) + {0x02, 0x03, 0x00, 0x01, + 0x06, 0x07, 0x04, 0x05, + 0x0A, 0x0B, 0x08, 0x09, + 0x0E, 0x0F, 0x0C, 0x0D}; + const_vector unsigned char perm2 = (const_vector unsigned char) + {0x04, 0x05, 0x06, 0x07, + 0x00, 0x01, 0x02, 0x03, + 0x0C, 0x0D, 0x0E, 0x0F, + 0x08, 0x09, 0x0A, 0x0B}; + const_vector unsigned char perm3 = (const_vector unsigned char) + {0x08, 0x09, 0x0A, 0x0B, + 0x0C, 0x0D, 0x0E, 0x0F, + 0x00, 0x01, 0x02, 0x03, + 0x04, 0x05, 0x06, 0x07}; +#endif + +#define ONEITERBUTTERFLY(i, res) \ + { \ + vector unsigned char src1, src2, srcO; \ + vector unsigned char dst1, dst2, dstO; \ + src1 = vec_ld(stride * i, src); \ + if ((((stride * i) + (unsigned long)src) & 0x0000000F) > 8) \ + src2 = vec_ld((stride * i) + 16, src); \ + srcO = vec_perm(src1, src2, vec_lvsl(stride * i, src)); \ + dst1 = vec_ld(stride * i, dst); \ + if ((((stride * i) + (unsigned long)dst) & 0x0000000F) > 8) \ + dst2 = vec_ld((stride * i) + 16, dst); \ + dstO = vec_perm(dst1, dst2, vec_lvsl(stride * i, dst)); \ + /* promote the unsigned chars to signed shorts */ \ + /* we're in the 8x8 function, we only care for the first 8 */ \ + vector signed short srcV = \ + (vector signed short)vec_mergeh((vector signed char)vzero, (vector signed char)srcO); \ + vector signed short dstV = \ + (vector signed short)vec_mergeh((vector signed char)vzero, (vector signed char)dstO); \ + /* substractions inside the first butterfly */ \ + vector signed short but0 = vec_sub(srcV, dstV); \ + vector signed short op1 = vec_perm(but0, but0, perm1); \ + vector signed short but1 = vec_mladd(but0, vprod1, op1); \ + vector signed short op2 = vec_perm(but1, but1, perm2); \ + vector signed short but2 = vec_mladd(but1, vprod2, op2); \ + vector signed short op3 = vec_perm(but2, but2, perm3); \ + res = vec_mladd(but2, vprod3, op3); \ + } + vector signed short temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7; + ONEITERBUTTERFLY(0, temp0); + ONEITERBUTTERFLY(1, temp1); + ONEITERBUTTERFLY(2, temp2); + ONEITERBUTTERFLY(3, temp3); + ONEITERBUTTERFLY(4, temp4); + ONEITERBUTTERFLY(5, temp5); + ONEITERBUTTERFLY(6, temp6); + ONEITERBUTTERFLY(7, temp7); +#undef ONEITERBUTTERFLY + { + vector signed int vsum; + vector signed short line0 = vec_add(temp0, temp1); + vector signed short line1 = vec_sub(temp0, temp1); + vector signed short line2 = vec_add(temp2, temp3); + vector signed short line3 = vec_sub(temp2, temp3); + vector signed short line4 = vec_add(temp4, temp5); + vector signed short line5 = vec_sub(temp4, temp5); + vector signed short line6 = vec_add(temp6, temp7); + vector signed short line7 = vec_sub(temp6, temp7); + + vector signed short line0B = vec_add(line0, line2); + vector signed short line2B = vec_sub(line0, line2); + vector signed short line1B = vec_add(line1, line3); + vector signed short line3B = vec_sub(line1, line3); + vector signed short line4B = vec_add(line4, line6); + vector signed short line6B = vec_sub(line4, line6); + vector signed short line5B = vec_add(line5, line7); + vector signed short line7B = vec_sub(line5, line7); + + vector signed short line0C = vec_add(line0B, line4B); + vector signed short line4C = vec_sub(line0B, line4B); + vector signed short line1C = vec_add(line1B, line5B); + vector signed short line5C = vec_sub(line1B, line5B); + vector signed short line2C = vec_add(line2B, line6B); + vector signed short line6C = vec_sub(line2B, line6B); + vector signed short line3C = vec_add(line3B, line7B); + vector signed short line7C = vec_sub(line3B, line7B); + + vsum = vec_sum4s(vec_abs(line0C), vec_splat_s32(0)); + vsum = vec_sum4s(vec_abs(line1C), vsum); + vsum = vec_sum4s(vec_abs(line2C), vsum); + vsum = vec_sum4s(vec_abs(line3C), vsum); + vsum = vec_sum4s(vec_abs(line4C), vsum); + vsum = vec_sum4s(vec_abs(line5C), vsum); + vsum = vec_sum4s(vec_abs(line6C), vsum); + vsum = vec_sum4s(vec_abs(line7C), vsum); + vsum = vec_sums(vsum, (vector signed int)vzero); + vsum = vec_splat(vsum, 3); + vec_ste(vsum, 0, &sum); + } + } +POWERPC_PERF_STOP_COUNT(altivec_hadamard8_diff8x8_num, 1); + return sum; +} + int has_altivec(void) { #ifdef CONFIG_DARWIN diff --git a/libavcodec/ppc/dsputil_altivec.h b/libavcodec/ppc/dsputil_altivec.h index 93448a1ad7..df632347ba 100644 --- a/libavcodec/ppc/dsputil_altivec.h +++ b/libavcodec/ppc/dsputil_altivec.h @@ -1,6 +1,7 @@ /* * Copyright (c) 2002 Brian Foley * Copyright (c) 2002 Dieter Shirley + * Copyright (c) 2003-2004 Romain Dolbeau * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -45,6 +46,7 @@ extern void put_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int l extern void put_no_rnd_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h); extern void put_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h); extern void put_no_rnd_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h); +extern int hadamard8_diff8x8_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h); extern void gmc1_altivec(uint8_t *dst, uint8_t *src, int stride, int h, int x16, int y16, int rounder); diff --git a/libavcodec/ppc/dsputil_ppc.c b/libavcodec/ppc/dsputil_ppc.c index b8372e51e2..c3d3e808f3 100644 --- a/libavcodec/ppc/dsputil_ppc.c +++ b/libavcodec/ppc/dsputil_ppc.c @@ -1,6 +1,7 @@ /* * Copyright (c) 2002 Brian Foley * Copyright (c) 2002 Dieter Shirley + * Copyright (c) 2003-2004 Romain Dolbeau * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -59,6 +60,7 @@ static unsigned char* perfname[] = { "put_no_rnd_pixels8_xy2_altivec", "put_pixels16_xy2_altivec", "put_no_rnd_pixels16_xy2_altivec", + "hadamard8_diff8x8_altivec", "clear_blocks_dcbz32_ppc", "clear_blocks_dcbz128_ppc" }; @@ -224,6 +226,12 @@ long check_dcbzl_effect(void) } #endif +#ifdef HAVE_ALTIVEC +// can't put that in dsputil_altivec.c, +// has WARPER8_16_SQ declare the function "static" ... +WARPER8_16_SQ(hadamard8_diff8x8_altivec, hadamard8_diff16_altivec) +#endif + void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx) { // Common optimizations whether Altivec is available or not @@ -262,7 +270,7 @@ void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx) c->add_bytes= add_bytes_altivec; #endif /* 0 */ c->put_pixels_tab[0][0] = put_pixels16_altivec; - /* the tow functions do the same thing, so use the same code */ + /* the two functions do the same thing, so use the same code */ c->put_no_rnd_pixels_tab[0][0] = put_pixels16_altivec; c->avg_pixels_tab[0][0] = avg_pixels16_altivec; // next one disabled as it's untested. @@ -276,6 +284,9 @@ void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx) c->gmc1 = gmc1_altivec; + c->hadamard8_diff[0] = hadamard8_diff16_altivec; + c->hadamard8_diff[1] = hadamard8_diff8x8_altivec; + #ifdef CONFIG_ENCODERS if (avctx->dct_algo == FF_DCT_AUTO || avctx->dct_algo == FF_DCT_ALTIVEC) diff --git a/libavcodec/ppc/dsputil_ppc.h b/libavcodec/ppc/dsputil_ppc.h index d672edfcb6..3be44fff8c 100644 --- a/libavcodec/ppc/dsputil_ppc.h +++ b/libavcodec/ppc/dsputil_ppc.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2003 Romain Dolbeau + * Copyright (c) 2003-2004 Romain Dolbeau * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -50,6 +50,7 @@ enum powerpc_perf_index { altivec_put_no_rnd_pixels8_xy2_num, altivec_put_pixels16_xy2_num, altivec_put_no_rnd_pixels16_xy2_num, + altivec_hadamard8_diff8x8_num, powerpc_clear_blocks_dcbz32, powerpc_clear_blocks_dcbz128, powerpc_perf_total