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comparison: media/libvpx/vp9/common/vp9_idct.h
media/libvpx/vp9/common/vp9_idct.h
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| -1:000000000000 | 0:74e00dd839e5 |
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| 1 /* | |
| 2 * Copyright (c) 2010 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 VP9_COMMON_VP9_IDCT_H_ | |
| 12 #define VP9_COMMON_VP9_IDCT_H_ | |
| 13 | |
| 14 #include <assert.h> | |
| 15 | |
| 16 #include "./vpx_config.h" | |
| 17 #include "vpx/vpx_integer.h" | |
| 18 #include "vp9/common/vp9_common.h" | |
| 19 #include "vp9/common/vp9_enums.h" | |
| 20 | |
| 21 | |
| 22 // Constants and Macros used by all idct/dct functions | |
| 23 #define DCT_CONST_BITS 14 | |
| 24 #define DCT_CONST_ROUNDING (1 << (DCT_CONST_BITS - 1)) | |
| 25 | |
| 26 #define UNIT_QUANT_SHIFT 2 | |
| 27 #define UNIT_QUANT_FACTOR (1 << UNIT_QUANT_SHIFT) | |
| 28 | |
| 29 #define pair_set_epi16(a, b) \ | |
| 30 _mm_set_epi16(b, a, b, a, b, a, b, a) | |
| 31 | |
| 32 #define pair_set_epi32(a, b) \ | |
| 33 _mm_set_epi32(b, a, b, a) | |
| 34 | |
| 35 // Constants: | |
| 36 // for (int i = 1; i< 32; ++i) | |
| 37 // printf("static const int cospi_%d_64 = %.0f;\n", i, | |
| 38 // round(16384 * cos(i*M_PI/64))); | |
| 39 // Note: sin(k*Pi/64) = cos((32-k)*Pi/64) | |
| 40 static const int cospi_1_64 = 16364; | |
| 41 static const int cospi_2_64 = 16305; | |
| 42 static const int cospi_3_64 = 16207; | |
| 43 static const int cospi_4_64 = 16069; | |
| 44 static const int cospi_5_64 = 15893; | |
| 45 static const int cospi_6_64 = 15679; | |
| 46 static const int cospi_7_64 = 15426; | |
| 47 static const int cospi_8_64 = 15137; | |
| 48 static const int cospi_9_64 = 14811; | |
| 49 static const int cospi_10_64 = 14449; | |
| 50 static const int cospi_11_64 = 14053; | |
| 51 static const int cospi_12_64 = 13623; | |
| 52 static const int cospi_13_64 = 13160; | |
| 53 static const int cospi_14_64 = 12665; | |
| 54 static const int cospi_15_64 = 12140; | |
| 55 static const int cospi_16_64 = 11585; | |
| 56 static const int cospi_17_64 = 11003; | |
| 57 static const int cospi_18_64 = 10394; | |
| 58 static const int cospi_19_64 = 9760; | |
| 59 static const int cospi_20_64 = 9102; | |
| 60 static const int cospi_21_64 = 8423; | |
| 61 static const int cospi_22_64 = 7723; | |
| 62 static const int cospi_23_64 = 7005; | |
| 63 static const int cospi_24_64 = 6270; | |
| 64 static const int cospi_25_64 = 5520; | |
| 65 static const int cospi_26_64 = 4756; | |
| 66 static const int cospi_27_64 = 3981; | |
| 67 static const int cospi_28_64 = 3196; | |
| 68 static const int cospi_29_64 = 2404; | |
| 69 static const int cospi_30_64 = 1606; | |
| 70 static const int cospi_31_64 = 804; | |
| 71 | |
| 72 // 16384 * sqrt(2) * sin(kPi/9) * 2 / 3 | |
| 73 static const int sinpi_1_9 = 5283; | |
| 74 static const int sinpi_2_9 = 9929; | |
| 75 static const int sinpi_3_9 = 13377; | |
| 76 static const int sinpi_4_9 = 15212; | |
| 77 | |
| 78 static INLINE int dct_const_round_shift(int input) { | |
| 79 int rv = ROUND_POWER_OF_TWO(input, DCT_CONST_BITS); | |
| 80 return (int16_t)rv; | |
| 81 } | |
| 82 | |
| 83 typedef void (*transform_1d)(const int16_t*, int16_t*); | |
| 84 | |
| 85 typedef struct { | |
| 86 transform_1d cols, rows; // vertical and horizontal | |
| 87 } transform_2d; | |
| 88 | |
| 89 void vp9_iwht4x4_add(const int16_t *input, uint8_t *dest, int stride, int eob); | |
| 90 | |
| 91 void vp9_idct4x4_add(const int16_t *input, uint8_t *dest, int stride, int eob); | |
| 92 void vp9_idct8x8_add(const int16_t *input, uint8_t *dest, int stride, int eob); | |
| 93 void vp9_idct16x16_add(const int16_t *input, uint8_t *dest, int stride, int | |
| 94 eob); | |
| 95 void vp9_idct32x32_add(const int16_t *input, uint8_t *dest, int stride, | |
| 96 int eob); | |
| 97 | |
| 98 void vp9_iht4x4_add(TX_TYPE tx_type, const int16_t *input, uint8_t *dest, | |
| 99 int stride, int eob); | |
| 100 void vp9_iht8x8_add(TX_TYPE tx_type, const int16_t *input, uint8_t *dest, | |
| 101 int stride, int eob); | |
| 102 void vp9_iht16x16_add(TX_TYPE tx_type, const int16_t *input, uint8_t *dest, | |
| 103 int stride, int eob); | |
| 104 | |
| 105 | |
| 106 #endif // VP9_COMMON_VP9_IDCT_H_ |
