ref: 512b67f0239dc31cbf7b0b5b68227924b1728bde
dir: /vp10/common/mips/dspr2/itrans4_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_iht4x4_16_add_dspr2(const int16_t *input, uint8_t *dest, int dest_stride, int tx_type) { int i, j; DECLARE_ALIGNED(32, int16_t, out[4 * 4]); int16_t *outptr = out; int16_t temp_in[4 * 4], temp_out[4]; 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 vpx_idct4_rows_dspr2(input, outptr); vpx_idct4_columns_add_blk_dspr2(&out[0], dest, dest_stride); break; case ADST_DCT: // ADST in vertical, DCT in horizontal vpx_idct4_rows_dspr2(input, outptr); outptr = out; for (i = 0; i < 4; ++i) { iadst4_dspr2(outptr, temp_out); for (j = 0; j < 4; ++j) dest[j * dest_stride + i] = clip_pixel(ROUND_POWER_OF_TWO(temp_out[j], 4) + dest[j * dest_stride + i]); outptr += 4; } break; case DCT_ADST: // DCT in vertical, ADST in horizontal for (i = 0; i < 4; ++i) { iadst4_dspr2(input, outptr); input += 4; outptr += 4; } for (i = 0; i < 4; ++i) { for (j = 0; j < 4; ++j) { temp_in[i * 4 + j] = out[j * 4 + i]; } } vpx_idct4_columns_add_blk_dspr2(&temp_in[0], dest, dest_stride); break; case ADST_ADST: // ADST in both directions for (i = 0; i < 4; ++i) { iadst4_dspr2(input, outptr); input += 4; outptr += 4; } for (i = 0; i < 4; ++i) { for (j = 0; j < 4; ++j) temp_in[j] = out[j * 4 + i]; iadst4_dspr2(temp_in, temp_out); for (j = 0; j < 4; ++j) dest[j * dest_stride + i] = clip_pixel(ROUND_POWER_OF_TWO(temp_out[j], 4) + dest[j * dest_stride + i]); } break; default: printf("vp10_short_iht4x4_add_dspr2 : Invalid tx_type\n"); break; } } #endif // #if HAVE_DSPR2