ref: 51da38f8ab087ca554c47e387ad9aff3f38d379f
dir: /vpx_dsp/mips/vpx_convolve8_mmi.c/
/* * Copyright (c) 2018 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #include <assert.h> #include <string.h> #include "./vpx_config.h" #include "./vpx_dsp_rtcd.h" #include "vpx/vpx_integer.h" #include "vpx_dsp/vpx_dsp_common.h" #include "vpx_dsp/vpx_filter.h" #include "vpx_ports/asmdefs_mmi.h" #include "vpx_ports/mem.h" #define GET_DATA_H_MMI \ "pmaddhw %[ftmp4], %[ftmp4], %[filter1] \n\t" \ "pmaddhw %[ftmp5], %[ftmp5], %[filter2] \n\t" \ "paddw %[ftmp4], %[ftmp4], %[ftmp5] \n\t" \ "punpckhwd %[ftmp5], %[ftmp4], %[ftmp0] \n\t" \ "paddw %[ftmp4], %[ftmp4], %[ftmp5] \n\t" \ "pmaddhw %[ftmp6], %[ftmp6], %[filter1] \n\t" \ "pmaddhw %[ftmp7], %[ftmp7], %[filter2] \n\t" \ "paddw %[ftmp6], %[ftmp6], %[ftmp7] \n\t" \ "punpckhwd %[ftmp7], %[ftmp6], %[ftmp0] \n\t" \ "paddw %[ftmp6], %[ftmp6], %[ftmp7] \n\t" \ "punpcklwd %[srcl], %[ftmp4], %[ftmp6] \n\t" \ "pmaddhw %[ftmp8], %[ftmp8], %[filter1] \n\t" \ "pmaddhw %[ftmp9], %[ftmp9], %[filter2] \n\t" \ "paddw %[ftmp8], %[ftmp8], %[ftmp9] \n\t" \ "punpckhwd %[ftmp9], %[ftmp8], %[ftmp0] \n\t" \ "paddw %[ftmp8], %[ftmp8], %[ftmp9] \n\t" \ "pmaddhw %[ftmp10], %[ftmp10], %[filter1] \n\t" \ "pmaddhw %[ftmp11], %[ftmp11], %[filter2] \n\t" \ "paddw %[ftmp10], %[ftmp10], %[ftmp11] \n\t" \ "punpckhwd %[ftmp11], %[ftmp10], %[ftmp0] \n\t" \ "paddw %[ftmp10], %[ftmp10], %[ftmp11] \n\t" \ "punpcklwd %[srch], %[ftmp8], %[ftmp10] \n\t" #define GET_DATA_V_MMI \ "punpcklhw %[srcl], %[ftmp4], %[ftmp5] \n\t" \ "pmaddhw %[srcl], %[srcl], %[filter10] \n\t" \ "punpcklhw %[ftmp12], %[ftmp6], %[ftmp7] \n\t" \ "pmaddhw %[ftmp12], %[ftmp12], %[filter32] \n\t" \ "paddw %[srcl], %[srcl], %[ftmp12] \n\t" \ "punpcklhw %[ftmp12], %[ftmp8], %[ftmp9] \n\t" \ "pmaddhw %[ftmp12], %[ftmp12], %[filter54] \n\t" \ "paddw %[srcl], %[srcl], %[ftmp12] \n\t" \ "punpcklhw %[ftmp12], %[ftmp10], %[ftmp11] \n\t" \ "pmaddhw %[ftmp12], %[ftmp12], %[filter76] \n\t" \ "paddw %[srcl], %[srcl], %[ftmp12] \n\t" \ "punpckhhw %[srch], %[ftmp4], %[ftmp5] \n\t" \ "pmaddhw %[srch], %[srch], %[filter10] \n\t" \ "punpckhhw %[ftmp12], %[ftmp6], %[ftmp7] \n\t" \ "pmaddhw %[ftmp12], %[ftmp12], %[filter32] \n\t" \ "paddw %[srch], %[srch], %[ftmp12] \n\t" \ "punpckhhw %[ftmp12], %[ftmp8], %[ftmp9] \n\t" \ "pmaddhw %[ftmp12], %[ftmp12], %[filter54] \n\t" \ "paddw %[srch], %[srch], %[ftmp12] \n\t" \ "punpckhhw %[ftmp12], %[ftmp10], %[ftmp11] \n\t" \ "pmaddhw %[ftmp12], %[ftmp12], %[filter76] \n\t" \ "paddw %[srch], %[srch], %[ftmp12] \n\t" /* clang-format off */ #define ROUND_POWER_OF_TWO_MMI \ /* Add para[0] */ \ "lw %[tmp0], 0x00(%[para]) \n\t" \ MMI_MTC1(%[tmp0], %[ftmp6]) \ "punpcklwd %[ftmp6], %[ftmp6], %[ftmp6] \n\t" \ "paddw %[srcl], %[srcl], %[ftmp6] \n\t" \ "paddw %[srch], %[srch], %[ftmp6] \n\t" \ /* Arithmetic right shift para[1] bits */ \ "lw %[tmp0], 0x04(%[para]) \n\t" \ MMI_MTC1(%[tmp0], %[ftmp5]) \ "psraw %[srcl], %[srcl], %[ftmp5] \n\t" \ "psraw %[srch], %[srch], %[ftmp5] \n\t" /* clang-format on */ #define CLIP_PIXEL_MMI \ /* Staturated operation */ \ "packsswh %[srcl], %[srcl], %[srch] \n\t" \ "packushb %[ftmp12], %[srcl], %[ftmp0] \n\t" static void convolve_horiz_mmi(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *filter, int x0_q4, int x_step_q4, int32_t w, int32_t h) { const int16_t *filter_x = filter[x0_q4]; double ftmp[14]; uint32_t tmp[2]; uint32_t para[5]; para[0] = (1 << ((FILTER_BITS)-1)); para[1] = FILTER_BITS; src -= SUBPEL_TAPS / 2 - 1; src_stride -= w; dst_stride -= w; (void)x_step_q4; /* clang-format off */ __asm__ volatile( "move %[tmp1], %[width] \n\t" "xor %[ftmp0], %[ftmp0], %[ftmp0] \n\t" "gsldlc1 %[filter1], 0x03(%[filter]) \n\t" "gsldrc1 %[filter1], 0x00(%[filter]) \n\t" "gsldlc1 %[filter2], 0x0b(%[filter]) \n\t" "gsldrc1 %[filter2], 0x08(%[filter]) \n\t" "1: \n\t" /* Get 8 data per row */ "gsldlc1 %[ftmp5], 0x07(%[src]) \n\t" "gsldrc1 %[ftmp5], 0x00(%[src]) \n\t" "gsldlc1 %[ftmp7], 0x08(%[src]) \n\t" "gsldrc1 %[ftmp7], 0x01(%[src]) \n\t" "gsldlc1 %[ftmp9], 0x09(%[src]) \n\t" "gsldrc1 %[ftmp9], 0x02(%[src]) \n\t" "gsldlc1 %[ftmp11], 0x0A(%[src]) \n\t" "gsldrc1 %[ftmp11], 0x03(%[src]) \n\t" "punpcklbh %[ftmp4], %[ftmp5], %[ftmp0] \n\t" "punpckhbh %[ftmp5], %[ftmp5], %[ftmp0] \n\t" "punpcklbh %[ftmp6], %[ftmp7], %[ftmp0] \n\t" "punpckhbh %[ftmp7], %[ftmp7], %[ftmp0] \n\t" "punpcklbh %[ftmp8], %[ftmp9], %[ftmp0] \n\t" "punpckhbh %[ftmp9], %[ftmp9], %[ftmp0] \n\t" "punpcklbh %[ftmp10], %[ftmp11], %[ftmp0] \n\t" "punpckhbh %[ftmp11], %[ftmp11], %[ftmp0] \n\t" MMI_ADDIU(%[width], %[width], -0x04) /* Get raw data */ GET_DATA_H_MMI ROUND_POWER_OF_TWO_MMI CLIP_PIXEL_MMI "swc1 %[ftmp12], 0x00(%[dst]) \n\t" MMI_ADDIU(%[dst], %[dst], 0x04) MMI_ADDIU(%[src], %[src], 0x04) /* Loop count */ "bnez %[width], 1b \n\t" "move %[width], %[tmp1] \n\t" MMI_ADDU(%[src], %[src], %[src_stride]) MMI_ADDU(%[dst], %[dst], %[dst_stride]) MMI_ADDIU(%[height], %[height], -0x01) "bnez %[height], 1b \n\t" : [srcl]"=&f"(ftmp[0]), [srch]"=&f"(ftmp[1]), [filter1]"=&f"(ftmp[2]), [filter2]"=&f"(ftmp[3]), [ftmp0]"=&f"(ftmp[4]), [ftmp4]"=&f"(ftmp[5]), [ftmp5]"=&f"(ftmp[6]), [ftmp6]"=&f"(ftmp[7]), [ftmp7]"=&f"(ftmp[8]), [ftmp8]"=&f"(ftmp[9]), [ftmp9]"=&f"(ftmp[10]), [ftmp10]"=&f"(ftmp[11]), [ftmp11]"=&f"(ftmp[12]), [ftmp12]"=&f"(ftmp[13]), [tmp0]"=&r"(tmp[0]), [tmp1]"=&r"(tmp[1]), [src]"+&r"(src), [width]"+&r"(w), [dst]"+&r"(dst), [height]"+&r"(h) : [filter]"r"(filter_x), [para]"r"(para), [src_stride]"r"((mips_reg)src_stride), [dst_stride]"r"((mips_reg)dst_stride) : "memory" ); /* clang-format on */ } static void convolve_vert_mmi(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *filter, int y0_q4, int y_step_q4, int32_t w, int32_t h) { const int16_t *filter_y = filter[y0_q4]; double ftmp[16]; uint32_t tmp[1]; uint32_t para[2]; ptrdiff_t addr = src_stride; para[0] = (1 << ((FILTER_BITS)-1)); para[1] = FILTER_BITS; src -= src_stride * (SUBPEL_TAPS / 2 - 1); src_stride -= w; dst_stride -= w; (void)y_step_q4; __asm__ volatile( "xor %[ftmp0], %[ftmp0], %[ftmp0] \n\t" "gsldlc1 %[ftmp4], 0x03(%[filter]) \n\t" "gsldrc1 %[ftmp4], 0x00(%[filter]) \n\t" "gsldlc1 %[ftmp5], 0x0b(%[filter]) \n\t" "gsldrc1 %[ftmp5], 0x08(%[filter]) \n\t" "punpcklwd %[filter10], %[ftmp4], %[ftmp4] \n\t" "punpckhwd %[filter32], %[ftmp4], %[ftmp4] \n\t" "punpcklwd %[filter54], %[ftmp5], %[ftmp5] \n\t" "punpckhwd %[filter76], %[ftmp5], %[ftmp5] \n\t" "1: \n\t" /* Get 8 data per column */ "gsldlc1 %[ftmp4], 0x07(%[src]) \n\t" "gsldrc1 %[ftmp4], 0x00(%[src]) \n\t" MMI_ADDU(%[tmp0], %[src], %[addr]) "gsldlc1 %[ftmp5], 0x07(%[tmp0]) \n\t" "gsldrc1 %[ftmp5], 0x00(%[tmp0]) \n\t" MMI_ADDU(%[tmp0], %[tmp0], %[addr]) "gsldlc1 %[ftmp6], 0x07(%[tmp0]) \n\t" "gsldrc1 %[ftmp6], 0x00(%[tmp0]) \n\t" MMI_ADDU(%[tmp0], %[tmp0], %[addr]) "gsldlc1 %[ftmp7], 0x07(%[tmp0]) \n\t" "gsldrc1 %[ftmp7], 0x00(%[tmp0]) \n\t" MMI_ADDU(%[tmp0], %[tmp0], %[addr]) "gsldlc1 %[ftmp8], 0x07(%[tmp0]) \n\t" "gsldrc1 %[ftmp8], 0x00(%[tmp0]) \n\t" MMI_ADDU(%[tmp0], %[tmp0], %[addr]) "gsldlc1 %[ftmp9], 0x07(%[tmp0]) \n\t" "gsldrc1 %[ftmp9], 0x00(%[tmp0]) \n\t" MMI_ADDU(%[tmp0], %[tmp0], %[addr]) "gsldlc1 %[ftmp10], 0x07(%[tmp0]) \n\t" "gsldrc1 %[ftmp10], 0x00(%[tmp0]) \n\t" MMI_ADDU(%[tmp0], %[tmp0], %[addr]) "gsldlc1 %[ftmp11], 0x07(%[tmp0]) \n\t" "gsldrc1 %[ftmp11], 0x00(%[tmp0]) \n\t" "punpcklbh %[ftmp4], %[ftmp4], %[ftmp0] \n\t" "punpcklbh %[ftmp5], %[ftmp5], %[ftmp0] \n\t" "punpcklbh %[ftmp6], %[ftmp6], %[ftmp0] \n\t" "punpcklbh %[ftmp7], %[ftmp7], %[ftmp0] \n\t" "punpcklbh %[ftmp8], %[ftmp8], %[ftmp0] \n\t" "punpcklbh %[ftmp9], %[ftmp9], %[ftmp0] \n\t" "punpcklbh %[ftmp10], %[ftmp10], %[ftmp0] \n\t" "punpcklbh %[ftmp11], %[ftmp11], %[ftmp0] \n\t" MMI_ADDIU(%[width], %[width], -0x04) /* Get raw data */ GET_DATA_V_MMI ROUND_POWER_OF_TWO_MMI CLIP_PIXEL_MMI "swc1 %[ftmp12], 0x00(%[dst]) \n\t" MMI_ADDIU(%[dst], %[dst], 0x04) MMI_ADDIU(%[src], %[src], 0x04) /* Loop count */ "bnez %[width], 1b \n\t" MMI_SUBU(%[width], %[addr], %[src_stride]) MMI_ADDU(%[src], %[src], %[src_stride]) MMI_ADDU(%[dst], %[dst], %[dst_stride]) MMI_ADDIU(%[height], %[height], -0x01) "bnez %[height], 1b \n\t" : [srcl]"=&f"(ftmp[0]), [srch]"=&f"(ftmp[1]), [filter10]"=&f"(ftmp[2]), [filter32]"=&f"(ftmp[3]), [filter54]"=&f"(ftmp[4]), [filter76]"=&f"(ftmp[5]), [ftmp0]"=&f"(ftmp[6]), [ftmp4]"=&f"(ftmp[7]), [ftmp5]"=&f"(ftmp[8]), [ftmp6]"=&f"(ftmp[9]), [ftmp7]"=&f"(ftmp[10]), [ftmp8]"=&f"(ftmp[11]), [ftmp9]"=&f"(ftmp[12]), [ftmp10]"=&f"(ftmp[13]), [ftmp11]"=&f"(ftmp[14]), [ftmp12]"=&f"(ftmp[15]), [src]"+&r"(src), [dst]"+&r"(dst), [width]"+&r"(w), [height]"+&r"(h), [tmp0]"=&r"(tmp[0]) : [filter]"r"(filter_y), [para]"r"(para), [src_stride]"r"((mips_reg)src_stride), [dst_stride]"r"((mips_reg)dst_stride), [addr]"r"((mips_reg)addr) : "memory" ); } static void convolve_avg_horiz_mmi(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *filter, int x0_q4, int x_step_q4, int32_t w, int32_t h) { const int16_t *filter_x = filter[x0_q4]; double ftmp[14]; uint32_t tmp[2]; uint32_t para[2]; para[0] = (1 << ((FILTER_BITS)-1)); para[1] = FILTER_BITS; src -= SUBPEL_TAPS / 2 - 1; src_stride -= w; dst_stride -= w; (void)x_step_q4; __asm__ volatile( "move %[tmp1], %[width] \n\t" "xor %[ftmp0], %[ftmp0], %[ftmp0] \n\t" "gsldlc1 %[filter1], 0x03(%[filter]) \n\t" "gsldrc1 %[filter1], 0x00(%[filter]) \n\t" "gsldlc1 %[filter2], 0x0b(%[filter]) \n\t" "gsldrc1 %[filter2], 0x08(%[filter]) \n\t" "1: \n\t" /* Get 8 data per row */ "gsldlc1 %[ftmp5], 0x07(%[src]) \n\t" "gsldrc1 %[ftmp5], 0x00(%[src]) \n\t" "gsldlc1 %[ftmp7], 0x08(%[src]) \n\t" "gsldrc1 %[ftmp7], 0x01(%[src]) \n\t" "gsldlc1 %[ftmp9], 0x09(%[src]) \n\t" "gsldrc1 %[ftmp9], 0x02(%[src]) \n\t" "gsldlc1 %[ftmp11], 0x0A(%[src]) \n\t" "gsldrc1 %[ftmp11], 0x03(%[src]) \n\t" "punpcklbh %[ftmp4], %[ftmp5], %[ftmp0] \n\t" "punpckhbh %[ftmp5], %[ftmp5], %[ftmp0] \n\t" "punpcklbh %[ftmp6], %[ftmp7], %[ftmp0] \n\t" "punpckhbh %[ftmp7], %[ftmp7], %[ftmp0] \n\t" "punpcklbh %[ftmp8], %[ftmp9], %[ftmp0] \n\t" "punpckhbh %[ftmp9], %[ftmp9], %[ftmp0] \n\t" "punpcklbh %[ftmp10], %[ftmp11], %[ftmp0] \n\t" "punpckhbh %[ftmp11], %[ftmp11], %[ftmp0] \n\t" MMI_ADDIU(%[width], %[width], -0x04) /* Get raw data */ GET_DATA_H_MMI ROUND_POWER_OF_TWO_MMI CLIP_PIXEL_MMI "punpcklbh %[ftmp12], %[ftmp12], %[ftmp0] \n\t" "gsldlc1 %[ftmp4], 0x07(%[dst]) \n\t" "gsldrc1 %[ftmp4], 0x00(%[dst]) \n\t" "punpcklbh %[ftmp4], %[ftmp4], %[ftmp0] \n\t" "paddh %[ftmp12], %[ftmp12], %[ftmp4] \n\t" "li %[tmp0], 0x10001 \n\t" MMI_MTC1(%[tmp0], %[ftmp5]) "punpcklhw %[ftmp5], %[ftmp5], %[ftmp5] \n\t" "paddh %[ftmp12], %[ftmp12], %[ftmp5] \n\t" "psrah %[ftmp12], %[ftmp12], %[ftmp5] \n\t" "packushb %[ftmp12], %[ftmp12], %[ftmp0] \n\t" "swc1 %[ftmp12], 0x00(%[dst]) \n\t" MMI_ADDIU(%[dst], %[dst], 0x04) MMI_ADDIU(%[src], %[src], 0x04) /* Loop count */ "bnez %[width], 1b \n\t" "move %[width], %[tmp1] \n\t" MMI_ADDU(%[src], %[src], %[src_stride]) MMI_ADDU(%[dst], %[dst], %[dst_stride]) MMI_ADDIU(%[height], %[height], -0x01) "bnez %[height], 1b \n\t" : [srcl]"=&f"(ftmp[0]), [srch]"=&f"(ftmp[1]), [filter1]"=&f"(ftmp[2]), [filter2]"=&f"(ftmp[3]), [ftmp0]"=&f"(ftmp[4]), [ftmp4]"=&f"(ftmp[5]), [ftmp5]"=&f"(ftmp[6]), [ftmp6]"=&f"(ftmp[7]), [ftmp7]"=&f"(ftmp[8]), [ftmp8]"=&f"(ftmp[9]), [ftmp9]"=&f"(ftmp[10]), [ftmp10]"=&f"(ftmp[11]), [ftmp11]"=&f"(ftmp[12]), [ftmp12]"=&f"(ftmp[13]), [tmp0]"=&r"(tmp[0]), [tmp1]"=&r"(tmp[1]), [src]"+&r"(src), [width]"+&r"(w), [dst]"+&r"(dst), [height]"+&r"(h) : [filter]"r"(filter_x), [para]"r"(para), [src_stride]"r"((mips_reg)src_stride), [dst_stride]"r"((mips_reg)dst_stride) : "memory" ); } static void convolve_avg_vert_mmi(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *filter, int y0_q4, int y_step_q4, int32_t w, int32_t h) { const int16_t *filter_y = filter[y0_q4]; double ftmp[16]; uint32_t tmp[1]; uint32_t para[2]; ptrdiff_t addr = src_stride; para[0] = (1 << ((FILTER_BITS)-1)); para[1] = FILTER_BITS; src -= src_stride * (SUBPEL_TAPS / 2 - 1); src_stride -= w; dst_stride -= w; (void)y_step_q4; __asm__ volatile( "xor %[ftmp0], %[ftmp0], %[ftmp0] \n\t" "gsldlc1 %[ftmp4], 0x03(%[filter]) \n\t" "gsldrc1 %[ftmp4], 0x00(%[filter]) \n\t" "gsldlc1 %[ftmp5], 0x0b(%[filter]) \n\t" "gsldrc1 %[ftmp5], 0x08(%[filter]) \n\t" "punpcklwd %[filter10], %[ftmp4], %[ftmp4] \n\t" "punpckhwd %[filter32], %[ftmp4], %[ftmp4] \n\t" "punpcklwd %[filter54], %[ftmp5], %[ftmp5] \n\t" "punpckhwd %[filter76], %[ftmp5], %[ftmp5] \n\t" "1: \n\t" /* Get 8 data per column */ "gsldlc1 %[ftmp4], 0x07(%[src]) \n\t" "gsldrc1 %[ftmp4], 0x00(%[src]) \n\t" MMI_ADDU(%[tmp0], %[src], %[addr]) "gsldlc1 %[ftmp5], 0x07(%[tmp0]) \n\t" "gsldrc1 %[ftmp5], 0x00(%[tmp0]) \n\t" MMI_ADDU(%[tmp0], %[tmp0], %[addr]) "gsldlc1 %[ftmp6], 0x07(%[tmp0]) \n\t" "gsldrc1 %[ftmp6], 0x00(%[tmp0]) \n\t" MMI_ADDU(%[tmp0], %[tmp0], %[addr]) "gsldlc1 %[ftmp7], 0x07(%[tmp0]) \n\t" "gsldrc1 %[ftmp7], 0x00(%[tmp0]) \n\t" MMI_ADDU(%[tmp0], %[tmp0], %[addr]) "gsldlc1 %[ftmp8], 0x07(%[tmp0]) \n\t" "gsldrc1 %[ftmp8], 0x00(%[tmp0]) \n\t" MMI_ADDU(%[tmp0], %[tmp0], %[addr]) "gsldlc1 %[ftmp9], 0x07(%[tmp0]) \n\t" "gsldrc1 %[ftmp9], 0x00(%[tmp0]) \n\t" MMI_ADDU(%[tmp0], %[tmp0], %[addr]) "gsldlc1 %[ftmp10], 0x07(%[tmp0]) \n\t" "gsldrc1 %[ftmp10], 0x00(%[tmp0]) \n\t" MMI_ADDU(%[tmp0], %[tmp0], %[addr]) "gsldlc1 %[ftmp11], 0x07(%[tmp0]) \n\t" "gsldrc1 %[ftmp11], 0x00(%[tmp0]) \n\t" "punpcklbh %[ftmp4], %[ftmp4], %[ftmp0] \n\t" "punpcklbh %[ftmp5], %[ftmp5], %[ftmp0] \n\t" "punpcklbh %[ftmp6], %[ftmp6], %[ftmp0] \n\t" "punpcklbh %[ftmp7], %[ftmp7], %[ftmp0] \n\t" "punpcklbh %[ftmp8], %[ftmp8], %[ftmp0] \n\t" "punpcklbh %[ftmp9], %[ftmp9], %[ftmp0] \n\t" "punpcklbh %[ftmp10], %[ftmp10], %[ftmp0] \n\t" "punpcklbh %[ftmp11], %[ftmp11], %[ftmp0] \n\t" MMI_ADDIU(%[width], %[width], -0x04) /* Get raw data */ GET_DATA_V_MMI ROUND_POWER_OF_TWO_MMI CLIP_PIXEL_MMI "punpcklbh %[ftmp12], %[ftmp12], %[ftmp0] \n\t" "gsldlc1 %[ftmp4], 0x07(%[dst]) \n\t" "gsldrc1 %[ftmp4], 0x00(%[dst]) \n\t" "punpcklbh %[ftmp4], %[ftmp4], %[ftmp0] \n\t" "paddh %[ftmp12], %[ftmp12], %[ftmp4] \n\t" "li %[tmp0], 0x10001 \n\t" MMI_MTC1(%[tmp0], %[ftmp5]) "punpcklhw %[ftmp5], %[ftmp5], %[ftmp5] \n\t" "paddh %[ftmp12], %[ftmp12], %[ftmp5] \n\t" "psrah %[ftmp12], %[ftmp12], %[ftmp5] \n\t" "packushb %[ftmp12], %[ftmp12], %[ftmp0] \n\t" "swc1 %[ftmp12], 0x00(%[dst]) \n\t" MMI_ADDIU(%[dst], %[dst], 0x04) MMI_ADDIU(%[src], %[src], 0x04) /* Loop count */ "bnez %[width], 1b \n\t" MMI_SUBU(%[width], %[addr], %[src_stride]) MMI_ADDU(%[src], %[src], %[src_stride]) MMI_ADDU(%[dst], %[dst], %[dst_stride]) MMI_ADDIU(%[height], %[height], -0x01) "bnez %[height], 1b \n\t" : [srcl]"=&f"(ftmp[0]), [srch]"=&f"(ftmp[1]), [filter10]"=&f"(ftmp[2]), [filter32]"=&f"(ftmp[3]), [filter54]"=&f"(ftmp[4]), [filter76]"=&f"(ftmp[5]), [ftmp0]"=&f"(ftmp[6]), [ftmp4]"=&f"(ftmp[7]), [ftmp5]"=&f"(ftmp[8]), [ftmp6]"=&f"(ftmp[9]), [ftmp7]"=&f"(ftmp[10]), [ftmp8]"=&f"(ftmp[11]), [ftmp9]"=&f"(ftmp[12]), [ftmp10]"=&f"(ftmp[13]), [ftmp11]"=&f"(ftmp[14]), [ftmp12]"=&f"(ftmp[15]), [src]"+&r"(src), [dst]"+&r"(dst), [width]"+&r"(w), [height]"+&r"(h), [tmp0]"=&r"(tmp[0]) : [filter]"r"(filter_y), [para]"r"(para), [src_stride]"r"((mips_reg)src_stride), [dst_stride]"r"((mips_reg)dst_stride), [addr]"r"((mips_reg)addr) : "memory" ); } void vpx_convolve_avg_mmi(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *filter, int x0_q4, int x_step_q4, int y0_q4, int y_step_q4, int w, int h) { int x, y; (void)filter; (void)x0_q4; (void)x_step_q4; (void)y0_q4; (void)y_step_q4; if (w & 0x03) { for (y = 0; y < h; ++y) { for (x = 0; x < w; ++x) dst[x] = ROUND_POWER_OF_TWO(dst[x] + src[x], 1); src += src_stride; dst += dst_stride; } } else { double ftmp[4]; uint32_t tmp[2]; src_stride -= w; dst_stride -= w; __asm__ volatile( "move %[tmp1], %[width] \n\t" "xor %[ftmp0], %[ftmp0], %[ftmp0] \n\t" "li %[tmp0], 0x10001 \n\t" MMI_MTC1(%[tmp0], %[ftmp3]) "punpcklhw %[ftmp3], %[ftmp3], %[ftmp3] \n\t" "1: \n\t" "gsldlc1 %[ftmp1], 0x07(%[src]) \n\t" "gsldrc1 %[ftmp1], 0x00(%[src]) \n\t" "gsldlc1 %[ftmp2], 0x07(%[dst]) \n\t" "gsldrc1 %[ftmp2], 0x00(%[dst]) \n\t" "punpcklbh %[ftmp1], %[ftmp1], %[ftmp0] \n\t" "punpcklbh %[ftmp2], %[ftmp2], %[ftmp0] \n\t" "paddh %[ftmp1], %[ftmp1], %[ftmp2] \n\t" "paddh %[ftmp1], %[ftmp1], %[ftmp3] \n\t" "psrah %[ftmp1], %[ftmp1], %[ftmp3] \n\t" "packushb %[ftmp1], %[ftmp1], %[ftmp0] \n\t" "swc1 %[ftmp1], 0x00(%[dst]) \n\t" MMI_ADDIU(%[width], %[width], -0x04) MMI_ADDIU(%[dst], %[dst], 0x04) MMI_ADDIU(%[src], %[src], 0x04) "bnez %[width], 1b \n\t" "move %[width], %[tmp1] \n\t" MMI_ADDU(%[dst], %[dst], %[dst_stride]) MMI_ADDU(%[src], %[src], %[src_stride]) MMI_ADDIU(%[height], %[height], -0x01) "bnez %[height], 1b \n\t" : [ftmp0]"=&f"(ftmp[0]), [ftmp1]"=&f"(ftmp[1]), [ftmp2]"=&f"(ftmp[2]), [ftmp3]"=&f"(ftmp[3]), [tmp0]"=&r"(tmp[0]), [tmp1]"=&r"(tmp[1]), [src]"+&r"(src), [dst]"+&r"(dst), [width]"+&r"(w), [height]"+&r"(h) : [src_stride]"r"((mips_reg)src_stride), [dst_stride]"r"((mips_reg)dst_stride) : "memory" ); } } static void convolve_horiz(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *x_filters, int x0_q4, int x_step_q4, int w, int h) { int x, y; src -= SUBPEL_TAPS / 2 - 1; for (y = 0; y < h; ++y) { int x_q4 = x0_q4; for (x = 0; x < w; ++x) { const uint8_t *const src_x = &src[x_q4 >> SUBPEL_BITS]; const int16_t *const x_filter = x_filters[x_q4 & SUBPEL_MASK]; int k, sum = 0; for (k = 0; k < SUBPEL_TAPS; ++k) sum += src_x[k] * x_filter[k]; dst[x] = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS)); x_q4 += x_step_q4; } src += src_stride; dst += dst_stride; } } static void convolve_vert(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *y_filters, int y0_q4, int y_step_q4, int w, int h) { int x, y; src -= src_stride * (SUBPEL_TAPS / 2 - 1); for (x = 0; x < w; ++x) { int y_q4 = y0_q4; for (y = 0; y < h; ++y) { const uint8_t *src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride]; const int16_t *const y_filter = y_filters[y_q4 & SUBPEL_MASK]; int k, sum = 0; for (k = 0; k < SUBPEL_TAPS; ++k) sum += src_y[k * src_stride] * y_filter[k]; dst[y * dst_stride] = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS)); y_q4 += y_step_q4; } ++src; ++dst; } } static void convolve_avg_vert(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *y_filters, int y0_q4, int y_step_q4, int w, int h) { int x, y; src -= src_stride * (SUBPEL_TAPS / 2 - 1); for (x = 0; x < w; ++x) { int y_q4 = y0_q4; for (y = 0; y < h; ++y) { const uint8_t *src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride]; const int16_t *const y_filter = y_filters[y_q4 & SUBPEL_MASK]; int k, sum = 0; for (k = 0; k < SUBPEL_TAPS; ++k) sum += src_y[k * src_stride] * y_filter[k]; dst[y * dst_stride] = ROUND_POWER_OF_TWO( dst[y * dst_stride] + clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS)), 1); y_q4 += y_step_q4; } ++src; ++dst; } } static void convolve_avg_horiz(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *x_filters, int x0_q4, int x_step_q4, int w, int h) { int x, y; src -= SUBPEL_TAPS / 2 - 1; for (y = 0; y < h; ++y) { int x_q4 = x0_q4; for (x = 0; x < w; ++x) { const uint8_t *const src_x = &src[x_q4 >> SUBPEL_BITS]; const int16_t *const x_filter = x_filters[x_q4 & SUBPEL_MASK]; int k, sum = 0; for (k = 0; k < SUBPEL_TAPS; ++k) sum += src_x[k] * x_filter[k]; dst[x] = ROUND_POWER_OF_TWO( dst[x] + clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS)), 1); x_q4 += x_step_q4; } src += src_stride; dst += dst_stride; } } void vpx_convolve8_mmi(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *filter, int x0_q4, int32_t x_step_q4, int y0_q4, int32_t y_step_q4, int32_t w, int32_t h) { // Note: Fixed size intermediate buffer, temp, places limits on parameters. // 2d filtering proceeds in 2 steps: // (1) Interpolate horizontally into an intermediate buffer, temp. // (2) Interpolate temp vertically to derive the sub-pixel result. // Deriving the maximum number of rows in the temp buffer (135): // --Smallest scaling factor is x1/2 ==> y_step_q4 = 32 (Normative). // --Largest block size is 64x64 pixels. // --64 rows in the downscaled frame span a distance of (64 - 1) * 32 in the // original frame (in 1/16th pixel units). // --Must round-up because block may be located at sub-pixel position. // --Require an additional SUBPEL_TAPS rows for the 8-tap filter tails. // --((64 - 1) * 32 + 15) >> 4 + 8 = 135. // When calling in frame scaling function, the smallest scaling factor is x1/4 // ==> y_step_q4 = 64. Since w and h are at most 16, the temp buffer is still // big enough. uint8_t temp[64 * 135]; const int intermediate_height = (((h - 1) * y_step_q4 + y0_q4) >> SUBPEL_BITS) + SUBPEL_TAPS; assert(w <= 64); assert(h <= 64); assert(y_step_q4 <= 32 || (y_step_q4 <= 64 && h <= 32)); assert(x_step_q4 <= 64); if (w & 0x03) { convolve_horiz(src - src_stride * (SUBPEL_TAPS / 2 - 1), src_stride, temp, 64, filter, x0_q4, x_step_q4, w, intermediate_height); convolve_vert(temp + 64 * (SUBPEL_TAPS / 2 - 1), 64, dst, dst_stride, filter, y0_q4, y_step_q4, w, h); } else { convolve_horiz_mmi(src - src_stride * (SUBPEL_TAPS / 2 - 1), src_stride, temp, 64, filter, x0_q4, x_step_q4, w, intermediate_height); convolve_vert_mmi(temp + 64 * (SUBPEL_TAPS / 2 - 1), 64, dst, dst_stride, filter, y0_q4, y_step_q4, w, h); } } void vpx_convolve8_horiz_mmi(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *filter, int x0_q4, int32_t x_step_q4, int y0_q4, int32_t y_step_q4, int32_t w, int32_t h) { (void)y0_q4; (void)y_step_q4; if (w & 0x03) convolve_horiz(src, src_stride, dst, dst_stride, filter, x0_q4, x_step_q4, w, h); else convolve_horiz_mmi(src, src_stride, dst, dst_stride, filter, x0_q4, x_step_q4, w, h); } void vpx_convolve8_vert_mmi(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *filter, int x0_q4, int32_t x_step_q4, int y0_q4, int y_step_q4, int w, int h) { (void)x0_q4; (void)x_step_q4; if (w & 0x03) convolve_vert(src, src_stride, dst, dst_stride, filter, y0_q4, y_step_q4, w, h); else convolve_vert_mmi(src, src_stride, dst, dst_stride, filter, y0_q4, y_step_q4, w, h); } void vpx_convolve8_avg_horiz_mmi(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *filter, int x0_q4, int32_t x_step_q4, int y0_q4, int y_step_q4, int w, int h) { (void)y0_q4; (void)y_step_q4; if (w & 0x03) convolve_avg_horiz(src, src_stride, dst, dst_stride, filter, x0_q4, x_step_q4, w, h); else convolve_avg_horiz_mmi(src, src_stride, dst, dst_stride, filter, x0_q4, x_step_q4, w, h); } void vpx_convolve8_avg_vert_mmi(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *filter, int x0_q4, int32_t x_step_q4, int y0_q4, int y_step_q4, int w, int h) { (void)x0_q4; (void)x_step_q4; if (w & 0x03) convolve_avg_vert(src, src_stride, dst, dst_stride, filter, y0_q4, y_step_q4, w, h); else convolve_avg_vert_mmi(src, src_stride, dst, dst_stride, filter, y0_q4, y_step_q4, w, h); } void vpx_convolve8_avg_mmi(const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const InterpKernel *filter, int x0_q4, int32_t x_step_q4, int y0_q4, int32_t y_step_q4, int32_t w, int32_t h) { // Fixed size intermediate buffer places limits on parameters. DECLARE_ALIGNED(16, uint8_t, temp[64 * 64]); assert(w <= 64); assert(h <= 64); vpx_convolve8_mmi(src, src_stride, temp, 64, filter, x0_q4, x_step_q4, y0_q4, y_step_q4, w, h); vpx_convolve_avg_mmi(temp, 64, dst, dst_stride, NULL, 0, 0, 0, 0, w, h); }