1 /* 2 * Copyright (c) 2013 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef VPX_VPX_DSP_MIPS_INV_TXFM_DSPR2_H_ 12 #define VPX_VPX_DSP_MIPS_INV_TXFM_DSPR2_H_ 13 14 #include <assert.h> 15 16 #include "./vpx_config.h" 17 #include "vpx/vpx_integer.h" 18 #include "vpx_dsp/inv_txfm.h" 19 #include "vpx_dsp/mips/common_dspr2.h" 20 21 #ifdef __cplusplus 22 extern "C" { 23 #endif 24 25 #if HAVE_DSPR2 26 #define DCT_CONST_ROUND_SHIFT_TWICE_COSPI_16_64(input) \ 27 ({ \ 28 int32_t tmp, out; \ 29 int dct_cost_rounding = DCT_CONST_ROUNDING; \ 30 int in = input; \ 31 \ 32 __asm__ __volatile__(/* out = dct_const_round_shift(dc * cospi_16_64); */ \ 33 "mtlo %[dct_cost_rounding], $ac1 " \ 34 " \n\t" \ 35 "mthi $zero, $ac1 " \ 36 " \n\t" \ 37 "madd $ac1, %[in], " \ 38 "%[cospi_16_64] \n\t" \ 39 "extp %[tmp], $ac1, " \ 40 "31 \n\t" \ 41 \ 42 /* out = dct_const_round_shift(out * cospi_16_64); */ \ 43 "mtlo %[dct_cost_rounding], $ac2 " \ 44 " \n\t" \ 45 "mthi $zero, $ac2 " \ 46 " \n\t" \ 47 "madd $ac2, %[tmp], " \ 48 "%[cospi_16_64] \n\t" \ 49 "extp %[out], $ac2, " \ 50 "31 \n\t" \ 51 \ 52 : [tmp] "=&r"(tmp), [out] "=r"(out) \ 53 : [in] "r"(in), \ 54 [dct_cost_rounding] "r"(dct_cost_rounding), \ 55 [cospi_16_64] "r"(cospi_16_64)); \ 56 out; \ 57 }) 58 59 void vpx_idct32_cols_add_blk_dspr2(int16_t *input, uint8_t *dest, int stride); 60 void vpx_idct4_rows_dspr2(const int16_t *input, int16_t *output); 61 void vpx_idct4_columns_add_blk_dspr2(int16_t *input, uint8_t *dest, int stride); 62 void iadst4_dspr2(const int16_t *input, int16_t *output); 63 void idct8_rows_dspr2(const int16_t *input, int16_t *output, uint32_t no_rows); 64 void idct8_columns_add_blk_dspr2(int16_t *input, uint8_t *dest, int stride); 65 void iadst8_dspr2(const int16_t *input, int16_t *output); 66 void idct16_rows_dspr2(const int16_t *input, int16_t *output, uint32_t no_rows); 67 void idct16_cols_add_blk_dspr2(int16_t *input, uint8_t *dest, int stride); 68 void iadst16_dspr2(const int16_t *input, int16_t *output); 69 70 #endif // #if HAVE_DSPR2 71 #ifdef __cplusplus 72 } // extern "C" 73 #endif 74 75 #endif // VPX_VPX_DSP_MIPS_INV_TXFM_DSPR2_H_ 76