ref: fe432cacf8eb055b11dbfd9d5fe8089830a2f1e3
dir: /vp9/common/mips/dspr2/vp9_itrans8_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 "./vp9_rtcd.h" #include "vp9/common/vp9_common.h" #include "vp9/common/vp9_blockd.h" #include "vpx_dsp/mips/inv_txfm_dspr2.h" #include "vpx_dsp/txfm_common.h" #include "vpx_ports/mem.h" #if HAVE_DSPR2 void vp9_iht8x8_64_add_dspr2(const int16_t *input, uint8_t *dest, int stride, int tx_type) { int i, j; DECLARE_ALIGNED(32, int16_t, out[8 * 8]); int16_t *outptr = out; int16_t temp_in[8 * 8], temp_out[8]; 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 idct8_rows_dspr2(input, outptr, 8); idct8_columns_add_blk_dspr2(&out[0], dest, stride); break; case ADST_DCT: // ADST in vertical, DCT in horizontal idct8_rows_dspr2(input, outptr, 8); for (i = 0; i < 8; ++i) { iadst8_dspr2(&out[i * 8], temp_out); for (j = 0; j < 8; ++j) dest[j * stride + i] = clip_pixel(ROUND_POWER_OF_TWO(temp_out[j], 5) + dest[j * stride + i]); } break; case DCT_ADST: // DCT in vertical, ADST in horizontal for (i = 0; i < 8; ++i) { iadst8_dspr2(input, outptr); input += 8; outptr += 8; } for (i = 0; i < 8; ++i) { for (j = 0; j < 8; ++j) { temp_in[i * 8 + j] = out[j * 8 + i]; } } idct8_columns_add_blk_dspr2(&temp_in[0], dest, stride); break; case ADST_ADST: // ADST in both directions for (i = 0; i < 8; ++i) { iadst8_dspr2(input, outptr); input += 8; outptr += 8; } for (i = 0; i < 8; ++i) { for (j = 0; j < 8; ++j) temp_in[j] = out[j * 8 + i]; iadst8_dspr2(temp_in, temp_out); for (j = 0; j < 8; ++j) dest[j * stride + i] = clip_pixel(ROUND_POWER_OF_TWO(temp_out[j], 5) + dest[j * stride + i]); } break; default: printf("vp9_short_iht8x8_add_dspr2 : Invalid tx_type\n"); break; } } #endif // #if HAVE_DSPR2