/* * VC-1 and WMV3 - DSP functions MMX-optimized * Copyright (c) 2007 Christophe GISQUET * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, * copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following * conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ #include "libavutil/attributes.h" #include "libavutil/mem.h" #include "libavutil/mem_internal.h" #include "libavutil/x86/asm.h" #include "libavutil/x86/cpu.h" #include "libavcodec/vc1dsp.h" #include "constants.h" #include "fpel.h" #include "vc1dsp.h" #if HAVE_6REGS && HAVE_INLINE_ASM && HAVE_MMX_EXTERNAL void ff_vc1_put_ver_16b_shift2_mmx(int16_t *dst, const uint8_t *src, x86_reg stride, int rnd, int64_t shift); void ff_vc1_put_hor_16b_shift2_mmx(uint8_t *dst, x86_reg stride, const int16_t *src, int rnd); void ff_vc1_avg_hor_16b_shift2_mmxext(uint8_t *dst, x86_reg stride, const int16_t *src, int rnd); #define OP_PUT(S,D) #define OP_AVG(S,D) "pavgb " #S ", " #D " \n\t" /** Add rounder from mm7 to mm3 and pack result at destination */ #define NORMALIZE_MMX(SHIFT) \ "paddw %%mm7, %%mm3 \n\t" /* +bias-r */ \ "paddw %%mm7, %%mm4 \n\t" /* +bias-r */ \ "psraw "SHIFT", %%mm3 \n\t" \ "psraw "SHIFT", %%mm4 \n\t" #define TRANSFER_DO_PACK(OP) \ "packuswb %%mm4, %%mm3 \n\t" \ OP((%2), %%mm3) \ "movq %%mm3, (%2) \n\t" #define TRANSFER_DONT_PACK(OP) \ OP(0(%2), %%mm3) \ OP(8(%2), %%mm4) \ "movq %%mm3, 0(%2) \n\t" \ "movq %%mm4, 8(%2) \n\t" /** @see MSPEL_FILTER13_CORE for use as UNPACK macro */ #define DO_UNPACK(reg) "punpcklbw %%mm0, " reg "\n\t" #define DONT_UNPACK(reg) /** Compute the rounder 32-r or 8-r and unpacks it to mm7 */ #define LOAD_ROUNDER_MMX(ROUND) \ "movd "ROUND", %%mm7 \n\t" \ "punpcklwd %%mm7, %%mm7 \n\t" \ "punpckldq %%mm7, %%mm7 \n\t" /** * Purely vertical or horizontal 1/2 shift interpolation. * Sacrifice mm6 for *9 factor. */ #define VC1_SHIFT2(OP, OPNAME)\ static void OPNAME ## vc1_shift2_mmx(uint8_t *dst, const uint8_t *src,\ x86_reg stride, int rnd, x86_reg offset)\ {\ rnd = 8-rnd;\ __asm__ volatile(\ "mov $8, %%"FF_REG_c" \n\t"\ LOAD_ROUNDER_MMX("%5")\ "movq "MANGLE(ff_pw_9)", %%mm6\n\t"\ "1: \n\t"\ "movd 0(%0 ), %%mm3 \n\t"\ "movd 4(%0 ), %%mm4 \n\t"\ "movd 0(%0,%2), %%mm1 \n\t"\ "movd 4(%0,%2), %%mm2 \n\t"\ "add %2, %0 \n\t"\ "punpcklbw %%mm0, %%mm3 \n\t"\ "punpcklbw %%mm0, %%mm4 \n\t"\ "punpcklbw %%mm0, %%mm1 \n\t"\ "punpcklbw %%mm0, %%mm2 \n\t"\ "paddw %%mm1, %%mm3 \n\t"\ "paddw %%mm2, %%mm4 \n\t"\ "movd 0(%0,%3), %%mm1 \n\t"\ "movd 4(%0,%3), %%mm2 \n\t"\ "pmullw %%mm6, %%mm3 \n\t" /* 0,9,9,0*/\ "pmullw %%mm6, %%mm4 \n\t" /* 0,9,9,0*/\ "punpcklbw %%mm0, %%mm1 \n\t"\ "punpcklbw %%mm0, %%mm2 \n\t"\ "psubw %%mm1, %%mm3 \n\t" /*-1,9,9,0*/\ "psubw %%mm2, %%mm4 \n\t" /*-1,9,9,0*/\ "movd 0(%0,%2), %%mm1 \n\t"\ "movd 4(%0,%2), %%mm2 \n\t"\ "punpcklbw %%mm0, %%mm1 \n\t"\ "punpcklbw %%mm0, %%mm2 \n\t"\ "psubw %%mm1, %%mm3 \n\t" /*-1,9,9,-1*/\ "psubw %%mm2, %%mm4 \n\t" /*-1,9,9,-1*/\ NORMALIZE_MMX("$4")\ "packuswb %%mm4, %%mm3 \n\t"\ OP((%1), %%mm3)\ "movq %%mm3, (%1) \n\t"\ "add %6, %0 \n\t"\ "add %4, %1 \n\t"\ "dec %%"FF_REG_c" \n\t"\ "jnz 1b \n\t"\ : "+r"(src), "+r"(dst)\ : "r"(offset), "r"(-2*offset), "g"(stride), "m"(rnd),\ "g"(stride-offset)\ NAMED_CONSTRAINTS_ADD(ff_pw_9)\ : "%"FF_REG_c, "memory"\ );\ } VC1_SHIFT2(OP_PUT, put_) VC1_SHIFT2(OP_AVG, avg_) /** * Core of the 1/4 and 3/4 shift bicubic interpolation. * * @param UNPACK Macro unpacking arguments from 8 to 16 bits (can be empty). * @param MOVQ "movd 1" or "movq 2", if data read is already unpacked. * @param A1 Address of 1st tap (beware of unpacked/packed). * @param A2 Address of 2nd tap * @param A3 Address of 3rd tap * @param A4 Address of 4th tap */ #define MSPEL_FILTER13_CORE(UNPACK, MOVQ, A1, A2, A3, A4) \ MOVQ "*0+"A1", %%mm1 \n\t" \ MOVQ "*4+"A1", %%mm2 \n\t" \ UNPACK("%%mm1") \ UNPACK("%%mm2") \ "pmullw "MANGLE(ff_pw_3)", %%mm1\n\t" \ "pmullw "MANGLE(ff_pw_3)", %%mm2\n\t" \ MOVQ "*0+"A2", %%mm3 \n\t" \ MOVQ "*4+"A2", %%mm4 \n\t" \ UNPACK("%%mm3") \ UNPACK("%%mm4") \ "pmullw %%mm6, %%mm3 \n\t" /* *18 */ \ "pmullw %%mm6, %%mm4 \n\t" /* *18 */ \ "psubw %%mm1, %%mm3 \n\t" /* 18,-3 */ \ "psubw %%mm2, %%mm4 \n\t" /* 18,-3 */ \ MOVQ "*0+"A4", %%mm1 \n\t" \ MOVQ "*4+"A4", %%mm2 \n\t" \ UNPACK("%%mm1") \ UNPACK("%%mm2") \ "psllw $2, %%mm1 \n\t" /* 4* */ \ "psllw $2, %%mm2 \n\t" /* 4* */ \ "psubw %%mm1, %%mm3 \n\t" /* -4,18,-3 */ \ "psubw %%mm2, %%mm4 \n\t" /* -4,18,-3 */ \ MOVQ "*0+"A3", %%mm1 \n\t" \ MOVQ "*4+"A3", %%mm2 \n\t" \ UNPACK("%%mm1") \ UNPACK("%%mm2") \ "pmullw %%mm5, %%mm1 \n\t" /* *53 */ \ "pmullw %%mm5, %%mm2 \n\t" /* *53 */ \ "paddw %%mm1, %%mm3 \n\t" /* 4,53,18,-3 */ \ "paddw %%mm2, %%mm4 \n\t" /* 4,53,18,-3 */ /** * Macro to build the vertical 16 bits version of vc1_put_shift[13]. * Here, offset=src_stride. Parameters passed A1 to A4 must use * %3 (src_stride) and %4 (3*src_stride). * * @param NAME Either 1 or 3 * @see MSPEL_FILTER13_CORE for information on A1->A4 */ #define MSPEL_FILTER13_VER_16B(NAME, A1, A2, A3, A4) \ static void \ vc1_put_ver_16b_ ## NAME ## _mmx(int16_t *dst, const uint8_t *src, \ x86_reg src_stride, \ int rnd, int64_t shift) \ { \ int h = 8; \ src -= src_stride; \ __asm__ volatile( \ LOAD_ROUNDER_MMX("%5") \ "movq "MANGLE(ff_pw_53)", %%mm5\n\t" \ "movq "MANGLE(ff_pw_18)", %%mm6\n\t" \ ".p2align 3 \n\t" \ "1: \n\t" \ MSPEL_FILTER13_CORE(DO_UNPACK, "movd 1", A1, A2, A3, A4) \ NORMALIZE_MMX("%6") \ TRANSFER_DONT_PACK(OP_PUT) \ /* Last 3 (in fact 4) bytes on the line */ \ "movd 8+"A1", %%mm1 \n\t" \ DO_UNPACK("%%mm1") \ "movq %%mm1, %%mm3 \n\t" \ "paddw %%mm1, %%mm1 \n\t" \ "paddw %%mm3, %%mm1 \n\t" /* 3* */ \ "movd 8+"A2", %%mm3 \n\t" \ DO_UNPACK("%%mm3") \ "pmullw %%mm6, %%mm3 \n\t" /* *18 */ \ "psubw %%mm1, %%mm3 \n\t" /*18,-3 */ \ "movd 8+"A3", %%mm1 \n\t" \ DO_UNPACK("%%mm1") \ "pmullw %%mm5, %%mm1 \n\t" /* *53 */ \ "paddw %%mm1, %%mm3 \n\t" /*53,18,-3 */ \ "movd 8+"A4", %%mm1 \n\t" \ DO_UNPACK("%%mm1") \ "psllw $2, %%mm1 \n\t" /* 4* */ \ "psubw %%mm1, %%mm3 \n\t" \ "paddw %%mm7, %%mm3 \n\t" \ "psraw %6, %%mm3 \n\t" \ "movq %%mm3, 16(%2) \n\t" \ "add %3, %1 \n\t" \ "add $24, %2 \n\t" \ "decl %0 \n\t" \ "jnz 1b \n\t" \ : "+r"(h), "+r" (src), "+r" (dst) \ : "r"(src_stride), "r"(3*src_stride), \ "m"(rnd), "m"(shift) \ NAMED_CONSTRAINTS_ADD(ff_pw_3,ff_pw_53,ff_pw_18) \ : "memory" \ ); \ } /** * Macro to build the horizontal 16 bits version of vc1_put_shift[13]. * Here, offset=16 bits, so parameters passed A1 to A4 should be simple. * * @param NAME Either 1 or 3 * @see MSPEL_FILTER13_CORE for information on A1->A4 */ #define MSPEL_FILTER13_HOR_16B(NAME, A1, A2, A3, A4, OP, OPNAME) \ static void \ OPNAME ## vc1_hor_16b_ ## NAME ## _mmx(uint8_t *dst, x86_reg stride, \ const int16_t *src, int rnd) \ { \ int h = 8; \ src -= 1; \ rnd -= (-4+58+13-3)*256; /* Add -256 bias */ \ __asm__ volatile( \ LOAD_ROUNDER_MMX("%4") \ "movq "MANGLE(ff_pw_18)", %%mm6 \n\t" \ "movq "MANGLE(ff_pw_53)", %%mm5 \n\t" \ ".p2align 3 \n\t" \ "1: \n\t" \ MSPEL_FILTER13_CORE(DONT_UNPACK, "movq 2", A1, A2, A3, A4) \ NORMALIZE_MMX("$7") \ /* Remove bias */ \ "paddw "MANGLE(ff_pw_128)", %%mm3 \n\t" \ "paddw "MANGLE(ff_pw_128)", %%mm4 \n\t" \ TRANSFER_DO_PACK(OP) \ "add $24, %1 \n\t" \ "add %3, %2 \n\t" \ "decl %0 \n\t" \ "jnz 1b \n\t" \ : "+r"(h), "+r" (src), "+r" (dst) \ : "r"(stride), "m"(rnd) \ NAMED_CONSTRAINTS_ADD(ff_pw_3,ff_pw_18,ff_pw_53,ff_pw_128) \ : "memory" \ ); \ } /** * Macro to build the 8 bits, any direction, version of vc1_put_shift[13]. * Here, offset=src_stride. Parameters passed A1 to A4 must use * %3 (offset) and %4 (3*offset). * * @param NAME Either 1 or 3 * @see MSPEL_FILTER13_CORE for information on A1->A4 */ #define MSPEL_FILTER13_8B(NAME, A1, A2, A3, A4, OP, OPNAME) \ static void \ OPNAME ## vc1_## NAME ## _mmx(uint8_t *dst, const uint8_t *src, \ x86_reg stride, int rnd, x86_reg offset) \ { \ int h = 8; \ src -= offset; \ rnd = 32-rnd; \ __asm__ volatile ( \ LOAD_ROUNDER_MMX("%6") \ "movq "MANGLE(ff_pw_53)", %%mm5 \n\t" \ "movq "MANGLE(ff_pw_18)", %%mm6 \n\t" \ ".p2align 3 \n\t" \ "1: \n\t" \ MSPEL_FILTER13_CORE(DO_UNPACK, "movd 1", A1, A2, A3, A4) \ NORMALIZE_MMX("$6") \ TRANSFER_DO_PACK(OP) \ "add %5, %1 \n\t" \ "add %5, %2 \n\t" \ "decl %0 \n\t" \ "jnz 1b \n\t" \ : "+r"(h), "+r" (src), "+r" (dst) \ : "r"(offset), "r"(3*offset), "g"(stride), "m"(rnd) \ NAMED_CONSTRAINTS_ADD(ff_pw_53,ff_pw_18,ff_pw_3) \ : "memory" \ ); \ } /** 1/4 shift bicubic interpolation */ MSPEL_FILTER13_8B (shift1, "0(%1,%4 )", "0(%1,%3,2)", "0(%1,%3 )", "0(%1 )", OP_PUT, put_) MSPEL_FILTER13_8B (shift1, "0(%1,%4 )", "0(%1,%3,2)", "0(%1,%3 )", "0(%1 )", OP_AVG, avg_) MSPEL_FILTER13_VER_16B(shift1, "0(%1,%4 )", "0(%1,%3,2)", "0(%1,%3 )", "0(%1 )") MSPEL_FILTER13_HOR_16B(shift1, "2*3(%1)", "2*2(%1)", "2*1(%1)", "2*0(%1)", OP_PUT, put_) MSPEL_FILTER13_HOR_16B(shift1, "2*3(%1)", "2*2(%1)", "2*1(%1)", "2*0(%1)", OP_AVG, avg_) /** 3/4 shift bicubic interpolation */ MSPEL_FILTER13_8B (shift3, "0(%1 )", "0(%1,%3 )", "0(%1,%3,2)", "0(%1,%4 )", OP_PUT, put_) MSPEL_FILTER13_8B (shift3, "0(%1 )", "0(%1,%3 )", "0(%1,%3,2)", "0(%1,%4 )", OP_AVG, avg_) MSPEL_FILTER13_VER_16B(shift3, "0(%1 )", "0(%1,%3 )", "0(%1,%3,2)", "0(%1,%4 )") MSPEL_FILTER13_HOR_16B(shift3, "2*0(%1)", "2*1(%1)", "2*2(%1)", "2*3(%1)", OP_PUT, put_) MSPEL_FILTER13_HOR_16B(shift3, "2*0(%1)", "2*1(%1)", "2*2(%1)", "2*3(%1)", OP_AVG, avg_) typedef void (*vc1_mspel_mc_filter_ver_16bits)(int16_t *dst, const uint8_t *src, x86_reg src_stride, int rnd, int64_t shift); typedef void (*vc1_mspel_mc_filter_hor_16bits)(uint8_t *dst, x86_reg dst_stride, const int16_t *src, int rnd); typedef void (*vc1_mspel_mc_filter_8bits)(uint8_t *dst, const uint8_t *src, x86_reg stride, int rnd, x86_reg offset); /** * Interpolate fractional pel values by applying proper vertical then * horizontal filter. * * @param dst Destination buffer for interpolated pels. * @param src Source buffer. * @param stride Stride for both src and dst buffers. * @param hmode Horizontal filter (expressed in quarter pixels shift). * @param hmode Vertical filter. * @param rnd Rounding bias. */ #define VC1_MSPEL_MC(OP, INSTR)\ static void OP ## vc1_mspel_mc(uint8_t *dst, const uint8_t *src, int stride,\ int hmode, int vmode, int rnd)\ {\ static const vc1_mspel_mc_filter_ver_16bits vc1_put_shift_ver_16bits[] =\ { NULL, vc1_put_ver_16b_shift1_mmx, ff_vc1_put_ver_16b_shift2_mmx, vc1_put_ver_16b_shift3_mmx };\ static const vc1_mspel_mc_filter_hor_16bits vc1_put_shift_hor_16bits[] =\ { NULL, OP ## vc1_hor_16b_shift1_mmx, ff_vc1_ ## OP ## hor_16b_shift2_ ## INSTR, OP ## vc1_hor_16b_shift3_mmx };\ static const vc1_mspel_mc_filter_8bits vc1_put_shift_8bits[] =\ { NULL, OP ## vc1_shift1_mmx, OP ## vc1_shift2_mmx, OP ## vc1_shift3_mmx };\ \ __asm__ volatile(\ "pxor %%mm0, %%mm0 \n\t"\ ::: "memory"\ );\ \ if (vmode) { /* Vertical filter to apply */\ if (hmode) { /* Horizontal filter to apply, output to tmp */\ static const int shift_value[] = { 0, 5, 1, 5 };\ int shift = (shift_value[hmode]+shift_value[vmode])>>1;\ int r;\ LOCAL_ALIGNED(16, int16_t, tmp, [12*8]);\ \ r = (1<<(shift-1)) + rnd-1;\ vc1_put_shift_ver_16bits[vmode](tmp, src-1, stride, r, shift);\ \ vc1_put_shift_hor_16bits[hmode](dst, stride, tmp+1, 64-rnd);\ return;\ }\ else { /* No horizontal filter, output 8 lines to dst */\ vc1_put_shift_8bits[vmode](dst, src, stride, 1-rnd, stride);\ return;\ }\ }\ \ /* Horizontal mode with no vertical mode */\ vc1_put_shift_8bits[hmode](dst, src, stride, rnd, 1);\ } \ static void OP ## vc1_mspel_mc_16(uint8_t *dst, const uint8_t *src, \ int stride, int hmode, int vmode, int rnd)\ { \ OP ## vc1_mspel_mc(dst + 0, src + 0, stride, hmode, vmode, rnd); \ OP ## vc1_mspel_mc(dst + 8, src + 8, stride, hmode, vmode, rnd); \ dst += 8*stride; src += 8*stride; \ OP ## vc1_mspel_mc(dst + 0, src + 0, stride, hmode, vmode, rnd); \ OP ## vc1_mspel_mc(dst + 8, src + 8, stride, hmode, vmode, rnd); \ } VC1_MSPEL_MC(put_, mmx) VC1_MSPEL_MC(avg_, mmxext) /** Macro to ease bicubic filter interpolation functions declarations */ #define DECLARE_FUNCTION(a, b) \ static void put_vc1_mspel_mc ## a ## b ## _mmx(uint8_t *dst, \ const uint8_t *src, \ ptrdiff_t stride, \ int rnd) \ { \ put_vc1_mspel_mc(dst, src, stride, a, b, rnd); \ }\ static void avg_vc1_mspel_mc ## a ## b ## _mmxext(uint8_t *dst, \ const uint8_t *src, \ ptrdiff_t stride, \ int rnd) \ { \ avg_vc1_mspel_mc(dst, src, stride, a, b, rnd); \ }\ static void put_vc1_mspel_mc ## a ## b ## _16_mmx(uint8_t *dst, \ const uint8_t *src, \ ptrdiff_t stride, \ int rnd) \ { \ put_vc1_mspel_mc_16(dst, src, stride, a, b, rnd); \ }\ static void avg_vc1_mspel_mc ## a ## b ## _16_mmxext(uint8_t *dst, \ const uint8_t *src,\ ptrdiff_t stride, \ int rnd) \ { \ avg_vc1_mspel_mc_16(dst, src, stride, a, b, rnd); \ } DECLARE_FUNCTION(0, 1) DECLARE_FUNCTION(0, 2) DECLARE_FUNCTION(0, 3) DECLARE_FUNCTION(1, 0) DECLARE_FUNCTION(1, 1) DECLARE_FUNCTION(1, 2) DECLARE_FUNCTION(1, 3) DECLARE_FUNCTION(2, 0) DECLARE_FUNCTION(2, 1) DECLARE_FUNCTION(2, 2) DECLARE_FUNCTION(2, 3) DECLARE_FUNCTION(3, 0) DECLARE_FUNCTION(3, 1) DECLARE_FUNCTION(3, 2) DECLARE_FUNCTION(3, 3) #define FN_ASSIGN(OP, X, Y, INSN) \ dsp->OP##vc1_mspel_pixels_tab[1][X+4*Y] = OP##vc1_mspel_mc##X##Y##INSN; \ dsp->OP##vc1_mspel_pixels_tab[0][X+4*Y] = OP##vc1_mspel_mc##X##Y##_16##INSN av_cold void ff_vc1dsp_init_mmx(VC1DSPContext *dsp) { FN_ASSIGN(put_, 0, 1, _mmx); FN_ASSIGN(put_, 0, 2, _mmx); FN_ASSIGN(put_, 0, 3, _mmx); FN_ASSIGN(put_, 1, 0, _mmx); FN_ASSIGN(put_, 1, 1, _mmx); FN_ASSIGN(put_, 1, 2, _mmx); FN_ASSIGN(put_, 1, 3, _mmx); FN_ASSIGN(put_, 2, 0, _mmx); FN_ASSIGN(put_, 2, 1, _mmx); FN_ASSIGN(put_, 2, 2, _mmx); FN_ASSIGN(put_, 2, 3, _mmx); FN_ASSIGN(put_, 3, 0, _mmx); FN_ASSIGN(put_, 3, 1, _mmx); FN_ASSIGN(put_, 3, 2, _mmx); FN_ASSIGN(put_, 3, 3, _mmx); } av_cold void ff_vc1dsp_init_mmxext(VC1DSPContext *dsp) { FN_ASSIGN(avg_, 0, 1, _mmxext); FN_ASSIGN(avg_, 0, 2, _mmxext); FN_ASSIGN(avg_, 0, 3, _mmxext); FN_ASSIGN(avg_, 1, 0, _mmxext); FN_ASSIGN(avg_, 1, 1, _mmxext); FN_ASSIGN(avg_, 1, 2, _mmxext); FN_ASSIGN(avg_, 1, 3, _mmxext); FN_ASSIGN(avg_, 2, 0, _mmxext); FN_ASSIGN(avg_, 2, 1, _mmxext); FN_ASSIGN(avg_, 2, 2, _mmxext); FN_ASSIGN(avg_, 2, 3, _mmxext); FN_ASSIGN(avg_, 3, 0, _mmxext); FN_ASSIGN(avg_, 3, 1, _mmxext); FN_ASSIGN(avg_, 3, 2, _mmxext); FN_ASSIGN(avg_, 3, 3, _mmxext); } #endif /* HAVE_6REGS && HAVE_INLINE_ASM && HAVE_MMX_EXTERNAL */