ref: 612104bb8dd3b40a635deebaca445f00aa069220
dir: /vp10/common/mips/dspr2/itrans16_dspr2.c/
/* * Copyright (c) 2013 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 <stdio.h> #include "./vpx_config.h" #include "./vp10_rtcd.h" #include "vp10/common/common.h" #include "vp10/common/blockd.h" #include "vp10/common/idct.h" #include "vpx_dsp/mips/inv_txfm_dspr2.h" #include "vpx_dsp/txfm_common.h" #include "vpx_ports/mem.h" #if HAVE_DSPR2 void vp10_iht16x16_256_add_dspr2(const int16_t *input, uint8_t *dest, int pitch, int tx_type) { int i, j; DECLARE_ALIGNED(32, int16_t, out[16 * 16]); int16_t *outptr = out; int16_t temp_out[16]; uint32_t pos = 45; /* bit positon for extract from acc */ __asm__ __volatile__ ( "wrdsp %[pos], 1 \n\t" : : [pos] "r" (pos) ); switch (tx_type) { case DCT_DCT: // DCT in both horizontal and vertical idct16_rows_dspr2(input, outptr, 16); idct16_cols_add_blk_dspr2(out, dest, pitch); break; case ADST_DCT: // ADST in vertical, DCT in horizontal idct16_rows_dspr2(input, outptr, 16); outptr = out; for (i = 0; i < 16; ++i) { iadst16_dspr2(outptr, temp_out); for (j = 0; j < 16; ++j) dest[j * pitch + i] = clip_pixel(ROUND_POWER_OF_TWO(temp_out[j], 6) + dest[j * pitch + i]); outptr += 16; } break; case DCT_ADST: // DCT in vertical, ADST in horizontal { int16_t temp_in[16 * 16]; for (i = 0; i < 16; ++i) { /* prefetch row */ prefetch_load((const uint8_t *)(input + 16)); iadst16_dspr2(input, outptr); input += 16; outptr += 16; } for (i = 0; i < 16; ++i) for (j = 0; j < 16; ++j) temp_in[j * 16 + i] = out[i * 16 + j]; idct16_cols_add_blk_dspr2(temp_in, dest, pitch); } break; case ADST_ADST: // ADST in both directions { int16_t temp_in[16]; for (i = 0; i < 16; ++i) { /* prefetch row */ prefetch_load((const uint8_t *)(input + 16)); iadst16_dspr2(input, outptr); input += 16; outptr += 16; } for (i = 0; i < 16; ++i) { for (j = 0; j < 16; ++j) temp_in[j] = out[j * 16 + i]; iadst16_dspr2(temp_in, temp_out); for (j = 0; j < 16; ++j) dest[j * pitch + i] = clip_pixel(ROUND_POWER_OF_TWO(temp_out[j], 6) + dest[j * pitch + i]); } } break; default: printf("vp10_short_iht16x16_add_dspr2 : Invalid tx_type\n"); break; } } #endif // #if HAVE_DSPR2