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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /third_party/aom/aom_dsp/txfm_common.h
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/aom/aom_dsp/txfm_common.h')
-rw-r--r--third_party/aom/aom_dsp/txfm_common.h155
1 files changed, 155 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/txfm_common.h b/third_party/aom/aom_dsp/txfm_common.h
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+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#ifndef AOM_AOM_DSP_TXFM_COMMON_H_
+#define AOM_AOM_DSP_TXFM_COMMON_H_
+
+#include "aom_dsp/aom_dsp_common.h"
+
+// Constants and Macros used by all idct/dct functions
+#define DCT_CONST_BITS 14
+#define DCT_CONST_ROUNDING (1 << (DCT_CONST_BITS - 1))
+
+#define UNIT_QUANT_SHIFT 2
+#define UNIT_QUANT_FACTOR (1 << UNIT_QUANT_SHIFT)
+
+// block transform size
+enum {
+ TX_4X4, // 4x4 transform
+ TX_8X8, // 8x8 transform
+ TX_16X16, // 16x16 transform
+ TX_32X32, // 32x32 transform
+ TX_64X64, // 64x64 transform
+ TX_4X8, // 4x8 transform
+ TX_8X4, // 8x4 transform
+ TX_8X16, // 8x16 transform
+ TX_16X8, // 16x8 transform
+ TX_16X32, // 16x32 transform
+ TX_32X16, // 32x16 transform
+ TX_32X64, // 32x64 transform
+ TX_64X32, // 64x32 transform
+ TX_4X16, // 4x16 transform
+ TX_16X4, // 16x4 transform
+ TX_8X32, // 8x32 transform
+ TX_32X8, // 32x8 transform
+ TX_16X64, // 16x64 transform
+ TX_64X16, // 64x16 transform
+ TX_SIZES_ALL, // Includes rectangular transforms
+ TX_SIZES = TX_4X8, // Does NOT include rectangular transforms
+ TX_SIZES_LARGEST = TX_64X64,
+ TX_INVALID = 255 // Invalid transform size
+} UENUM1BYTE(TX_SIZE);
+
+enum {
+ DCT_DCT, // DCT in both horizontal and vertical
+ ADST_DCT, // ADST in vertical, DCT in horizontal
+ DCT_ADST, // DCT in vertical, ADST in horizontal
+ ADST_ADST, // ADST in both directions
+ FLIPADST_DCT, // FLIPADST in vertical, DCT in horizontal
+ DCT_FLIPADST, // DCT in vertical, FLIPADST in horizontal
+ FLIPADST_FLIPADST, // FLIPADST in both directions
+ ADST_FLIPADST, // ADST in vertical, FLIPADST in horizontal
+ FLIPADST_ADST, // FLIPADST in vertical, ADST in horizontal
+ IDTX, // Identity in both directions
+ V_DCT, // DCT in vertical, identity in horizontal
+ H_DCT, // Identity in vertical, DCT in horizontal
+ V_ADST, // ADST in vertical, identity in horizontal
+ H_ADST, // Identity in vertical, ADST in horizontal
+ V_FLIPADST, // FLIPADST in vertical, identity in horizontal
+ H_FLIPADST, // Identity in vertical, FLIPADST in horizontal
+ TX_TYPES,
+ DCT_ADST_TX_MASK = 0x000F, // Either DCT or ADST in each direction
+ TX_TYPE_INVALID = 255, // Invalid transform type
+} UENUM1BYTE(TX_TYPE);
+
+enum {
+ // DCT only
+ EXT_TX_SET_DCTONLY,
+ // DCT + Identity only
+ EXT_TX_SET_DCT_IDTX,
+ // Discrete Trig transforms w/o flip (4) + Identity (1)
+ EXT_TX_SET_DTT4_IDTX,
+ // Discrete Trig transforms w/o flip (4) + Identity (1) + 1D Hor/vert DCT (2)
+ EXT_TX_SET_DTT4_IDTX_1DDCT,
+ // Discrete Trig transforms w/ flip (9) + Identity (1) + 1D Hor/Ver DCT (2)
+ EXT_TX_SET_DTT9_IDTX_1DDCT,
+ // Discrete Trig transforms w/ flip (9) + Identity (1) + 1D Hor/Ver (6)
+ EXT_TX_SET_ALL16,
+ EXT_TX_SET_TYPES
+} UENUM1BYTE(TxSetType);
+
+typedef struct txfm_param {
+ // for both forward and inverse transforms
+ TX_TYPE tx_type;
+ TX_SIZE tx_size;
+ int lossless;
+ int bd;
+ // are the pixel buffers octets or shorts? This should collapse to
+ // bd==8 implies !is_hbd, but that's not certain right now.
+ int is_hbd;
+ TxSetType tx_set_type;
+ // for inverse transforms only
+ int eob;
+} TxfmParam;
+
+// Constants:
+// for (int i = 1; i< 32; ++i)
+// printf("static const int cospi_%d_64 = %.0f;\n", i,
+// round(16384 * cos(i*PI/64)));
+// Note: sin(k*Pi/64) = cos((32-k)*Pi/64)
+static const tran_high_t cospi_1_64 = 16364;
+static const tran_high_t cospi_2_64 = 16305;
+static const tran_high_t cospi_3_64 = 16207;
+static const tran_high_t cospi_4_64 = 16069;
+static const tran_high_t cospi_5_64 = 15893;
+static const tran_high_t cospi_6_64 = 15679;
+static const tran_high_t cospi_7_64 = 15426;
+static const tran_high_t cospi_8_64 = 15137;
+static const tran_high_t cospi_9_64 = 14811;
+static const tran_high_t cospi_10_64 = 14449;
+static const tran_high_t cospi_11_64 = 14053;
+static const tran_high_t cospi_12_64 = 13623;
+static const tran_high_t cospi_13_64 = 13160;
+static const tran_high_t cospi_14_64 = 12665;
+static const tran_high_t cospi_15_64 = 12140;
+static const tran_high_t cospi_16_64 = 11585;
+static const tran_high_t cospi_17_64 = 11003;
+static const tran_high_t cospi_18_64 = 10394;
+static const tran_high_t cospi_19_64 = 9760;
+static const tran_high_t cospi_20_64 = 9102;
+static const tran_high_t cospi_21_64 = 8423;
+static const tran_high_t cospi_22_64 = 7723;
+static const tran_high_t cospi_23_64 = 7005;
+static const tran_high_t cospi_24_64 = 6270;
+static const tran_high_t cospi_25_64 = 5520;
+static const tran_high_t cospi_26_64 = 4756;
+static const tran_high_t cospi_27_64 = 3981;
+static const tran_high_t cospi_28_64 = 3196;
+static const tran_high_t cospi_29_64 = 2404;
+static const tran_high_t cospi_30_64 = 1606;
+static const tran_high_t cospi_31_64 = 804;
+
+// 16384 * sqrt(2) * sin(kPi/9) * 2 / 3
+static const tran_high_t sinpi_1_9 = 5283;
+static const tran_high_t sinpi_2_9 = 9929;
+static const tran_high_t sinpi_3_9 = 13377;
+static const tran_high_t sinpi_4_9 = 15212;
+
+// 16384 * sqrt(2)
+static const tran_high_t Sqrt2 = 23170;
+static const tran_high_t InvSqrt2 = 11585;
+
+static INLINE tran_high_t fdct_round_shift(tran_high_t input) {
+ tran_high_t rv = ROUND_POWER_OF_TWO(input, DCT_CONST_BITS);
+ return rv;
+}
+
+#endif // AOM_AOM_DSP_TXFM_COMMON_H_