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1 /* | 1 /* |
2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. | 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 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 | 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 | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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26 // Constants and Macros used by all idct/dct functions | 26 // Constants and Macros used by all idct/dct functions |
27 #define DCT_CONST_BITS 14 | 27 #define DCT_CONST_BITS 14 |
28 #define DCT_CONST_ROUNDING (1 << (DCT_CONST_BITS - 1)) | 28 #define DCT_CONST_ROUNDING (1 << (DCT_CONST_BITS - 1)) |
29 | 29 |
30 #define UNIT_QUANT_SHIFT 2 | 30 #define UNIT_QUANT_SHIFT 2 |
31 #define UNIT_QUANT_FACTOR (1 << UNIT_QUANT_SHIFT) | 31 #define UNIT_QUANT_FACTOR (1 << UNIT_QUANT_SHIFT) |
32 | 32 |
33 #define pair_set_epi16(a, b) \ | 33 #define pair_set_epi16(a, b) \ |
34 _mm_set_epi16(b, a, b, a, b, a, b, a) | 34 _mm_set_epi16(b, a, b, a, b, a, b, a) |
35 | 35 |
| 36 #define dual_set_epi16(a, b) \ |
| 37 _mm_set_epi16(b, b, b, b, a, a, a, a) |
| 38 |
36 // Constants: | 39 // Constants: |
37 // for (int i = 1; i< 32; ++i) | 40 // for (int i = 1; i< 32; ++i) |
38 // printf("static const int cospi_%d_64 = %.0f;\n", i, | 41 // printf("static const int cospi_%d_64 = %.0f;\n", i, |
39 // round(16384 * cos(i*M_PI/64))); | 42 // round(16384 * cos(i*M_PI/64))); |
40 // Note: sin(k*Pi/64) = cos((32-k)*Pi/64) | 43 // Note: sin(k*Pi/64) = cos((32-k)*Pi/64) |
41 static const int cospi_1_64 = 16364; | 44 static const int cospi_1_64 = 16364; |
42 static const int cospi_2_64 = 16305; | 45 static const int cospi_2_64 = 16305; |
43 static const int cospi_3_64 = 16207; | 46 static const int cospi_3_64 = 16207; |
44 static const int cospi_4_64 = 16069; | 47 static const int cospi_4_64 = 16069; |
45 static const int cospi_5_64 = 15893; | 48 static const int cospi_5_64 = 15893; |
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102 int stride, int eob); | 105 int stride, int eob); |
103 void vp9_iht16x16_add(TX_TYPE tx_type, const int16_t *input, uint8_t *dest, | 106 void vp9_iht16x16_add(TX_TYPE tx_type, const int16_t *input, uint8_t *dest, |
104 int stride, int eob); | 107 int stride, int eob); |
105 | 108 |
106 | 109 |
107 #ifdef __cplusplus | 110 #ifdef __cplusplus |
108 } // extern "C" | 111 } // extern "C" |
109 #endif | 112 #endif |
110 | 113 |
111 #endif // VP9_COMMON_VP9_IDCT_H_ | 114 #endif // VP9_COMMON_VP9_IDCT_H_ |
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