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Unified Diff: source/libvpx/vp9/common/vp9_idct.c

Issue 592203002: libvpx: Pull from upstream (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/libvpx/
Patch Set: Created 6 years, 3 months ago
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Index: source/libvpx/vp9/common/vp9_idct.c
===================================================================
--- source/libvpx/vp9/common/vp9_idct.c (revision 292072)
+++ source/libvpx/vp9/common/vp9_idct.c (working copy)
@@ -18,14 +18,47 @@
#include "vp9/common/vp9_common.h"
#include "vp9/common/vp9_idct.h"
-void vp9_iwht4x4_16_add_c(const int16_t *input, uint8_t *dest, int stride) {
+#if CONFIG_EMULATE_HARDWARE_HIGHBITDEPTH
+// When CONFIG_EMULATE_HW_HIGHBITDEPTH is 1 the transform performs strict
+// overflow wrapping to match expected hardware implementations.
+// bd of 8 uses trans_low with 16bits, need to remove 16bits
+// bd of 10 uses trans_low with 18bits, need to remove 14bits
+// bd of 12 uses trans_low with 20bits, need to remove 12bits
+// bd of x uses trans_low with 8+x bits, need to remove 24-x bits
+#define WRAPLOW(x) ((((int32_t)x) << (24 - bd)) >> (24 - bd))
+#else
+#define WRAPLOW(x) (x)
+#endif // CONFIG_EMULATE_HARDWARE_HIGHBITDEPTH
+
+#if CONFIG_VP9_HIGHBITDEPTH
+static INLINE tran_low_t clamp_high(tran_high_t value, tran_low_t low,
+ tran_low_t high) {
+ return value < low ? low : (value > high ? high : value);
+}
+
+static INLINE tran_low_t clip_pixel_bd_high(tran_high_t dest,
+ tran_high_t trans, int bd) {
+ trans = WRAPLOW(trans);
+ switch (bd) {
+ case 8:
+ default:
+ return clamp_high(WRAPLOW(dest + trans), 0, 255);
+ case 10:
+ return clamp_high(WRAPLOW(dest + trans), 0, 1023);
+ case 12:
+ return clamp_high(WRAPLOW(dest + trans), 0, 4095);
+ }
+}
+#endif // CONFIG_VP9_HIGHBITDEPTH
+
+void vp9_iwht4x4_16_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
/* 4-point reversible, orthonormal inverse Walsh-Hadamard in 3.5 adds,
0.5 shifts per pixel. */
int i;
- int16_t output[16];
- int a1, b1, c1, d1, e1;
- const int16_t *ip = input;
- int16_t *op = output;
+ tran_low_t output[16];
+ tran_high_t a1, b1, c1, d1, e1;
+ const tran_low_t *ip = input;
+ tran_low_t *op = output;
for (i = 0; i < 4; i++) {
a1 = ip[0] >> UNIT_QUANT_SHIFT;
@@ -70,12 +103,12 @@
}
}
-void vp9_iwht4x4_1_add_c(const int16_t *in, uint8_t *dest, int dest_stride) {
+void vp9_iwht4x4_1_add_c(const tran_low_t *in, uint8_t *dest, int dest_stride) {
int i;
- int a1, e1;
- int16_t tmp[4];
- const int16_t *ip = in;
- int16_t *op = tmp;
+ tran_high_t a1, e1;
+ tran_low_t tmp[4];
+ const tran_low_t *ip = in;
+ tran_low_t *op = tmp;
a1 = ip[0] >> UNIT_QUANT_SHIFT;
e1 = a1 >> 1;
@@ -96,9 +129,9 @@
}
}
-static void idct4(const int16_t *input, int16_t *output) {
- int16_t step[4];
- int temp1, temp2;
+static void idct4(const tran_low_t *input, tran_low_t *output) {
+ tran_low_t step[4];
+ tran_high_t temp1, temp2;
// stage 1
temp1 = (input[0] + input[2]) * cospi_16_64;
temp2 = (input[0] - input[2]) * cospi_16_64;
@@ -116,11 +149,11 @@
output[3] = step[0] - step[3];
}
-void vp9_idct4x4_16_add_c(const int16_t *input, uint8_t *dest, int stride) {
- int16_t out[4 * 4];
- int16_t *outptr = out;
+void vp9_idct4x4_16_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
+ tran_low_t out[4 * 4];
+ tran_low_t *outptr = out;
int i, j;
- int16_t temp_in[4], temp_out[4];
+ tran_low_t temp_in[4], temp_out[4];
// Rows
for (i = 0; i < 4; ++i) {
@@ -140,10 +173,11 @@
}
}
-void vp9_idct4x4_1_add_c(const int16_t *input, uint8_t *dest, int dest_stride) {
+void vp9_idct4x4_1_add_c(const tran_low_t *input, uint8_t *dest,
+ int dest_stride) {
int i;
- int a1;
- int16_t out = dct_const_round_shift(input[0] * cospi_16_64);
+ tran_high_t a1;
+ tran_low_t out = dct_const_round_shift(input[0] * cospi_16_64);
out = dct_const_round_shift(out * cospi_16_64);
a1 = ROUND_POWER_OF_TWO(out, 4);
@@ -156,9 +190,9 @@
}
}
-static void idct8(const int16_t *input, int16_t *output) {
- int16_t step1[8], step2[8];
- int temp1, temp2;
+static void idct8(const tran_low_t *input, tran_low_t *output) {
+ tran_low_t step1[8], step2[8];
+ tran_high_t temp1, temp2;
// stage 1
step1[0] = input[0];
step1[2] = input[4];
@@ -201,11 +235,11 @@
output[7] = step1[0] - step1[7];
}
-void vp9_idct8x8_64_add_c(const int16_t *input, uint8_t *dest, int stride) {
- int16_t out[8 * 8];
- int16_t *outptr = out;
+void vp9_idct8x8_64_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
+ tran_low_t out[8 * 8];
+ tran_low_t *outptr = out;
int i, j;
- int16_t temp_in[8], temp_out[8];
+ tran_low_t temp_in[8], temp_out[8];
// First transform rows
for (i = 0; i < 8; ++i) {
@@ -225,10 +259,10 @@
}
}
-void vp9_idct8x8_1_add_c(const int16_t *input, uint8_t *dest, int stride) {
+void vp9_idct8x8_1_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
int i, j;
- int a1;
- int16_t out = dct_const_round_shift(input[0] * cospi_16_64);
+ tran_high_t a1;
+ tran_low_t out = dct_const_round_shift(input[0] * cospi_16_64);
out = dct_const_round_shift(out * cospi_16_64);
a1 = ROUND_POWER_OF_TWO(out, 5);
for (j = 0; j < 8; ++j) {
@@ -238,13 +272,13 @@
}
}
-static void iadst4(const int16_t *input, int16_t *output) {
- int s0, s1, s2, s3, s4, s5, s6, s7;
+static void iadst4(const tran_low_t *input, tran_low_t *output) {
+ tran_high_t s0, s1, s2, s3, s4, s5, s6, s7;
- int x0 = input[0];
- int x1 = input[1];
- int x2 = input[2];
- int x3 = input[3];
+ tran_high_t x0 = input[0];
+ tran_high_t x1 = input[1];
+ tran_high_t x2 = input[2];
+ tran_high_t x3 = input[3];
if (!(x0 | x1 | x2 | x3)) {
output[0] = output[1] = output[2] = output[3] = 0;
@@ -280,7 +314,7 @@
output[3] = dct_const_round_shift(s3);
}
-void vp9_iht4x4_16_add_c(const int16_t *input, uint8_t *dest, int stride,
+void vp9_iht4x4_16_add_c(const tran_low_t *input, uint8_t *dest, int stride,
int tx_type) {
const transform_2d IHT_4[] = {
{ idct4, idct4 }, // DCT_DCT = 0
@@ -290,9 +324,9 @@
};
int i, j;
- int16_t out[4 * 4];
- int16_t *outptr = out;
- int16_t temp_in[4], temp_out[4];
+ tran_low_t out[4 * 4];
+ tran_low_t *outptr = out;
+ tran_low_t temp_in[4], temp_out[4];
// inverse transform row vectors
for (i = 0; i < 4; ++i) {
@@ -311,17 +345,17 @@
+ dest[j * stride + i]);
}
}
-static void iadst8(const int16_t *input, int16_t *output) {
+static void iadst8(const tran_low_t *input, tran_low_t *output) {
int s0, s1, s2, s3, s4, s5, s6, s7;
- int x0 = input[7];
- int x1 = input[0];
- int x2 = input[5];
- int x3 = input[2];
- int x4 = input[3];
- int x5 = input[4];
- int x6 = input[1];
- int x7 = input[6];
+ tran_high_t x0 = input[7];
+ tran_high_t x1 = input[0];
+ tran_high_t x2 = input[5];
+ tran_high_t x3 = input[2];
+ tran_high_t x4 = input[3];
+ tran_high_t x5 = input[4];
+ tran_high_t x6 = input[1];
+ tran_high_t x7 = input[6];
if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7)) {
output[0] = output[1] = output[2] = output[3] = output[4]
@@ -395,12 +429,12 @@
{ iadst8, iadst8 } // ADST_ADST = 3
};
-void vp9_iht8x8_64_add_c(const int16_t *input, uint8_t *dest, int stride,
+void vp9_iht8x8_64_add_c(const tran_low_t *input, uint8_t *dest, int stride,
int tx_type) {
int i, j;
- int16_t out[8 * 8];
- int16_t *outptr = out;
- int16_t temp_in[8], temp_out[8];
+ tran_low_t out[8 * 8];
+ tran_low_t *outptr = out;
+ tran_low_t temp_in[8], temp_out[8];
const transform_2d ht = IHT_8[tx_type];
// inverse transform row vectors
@@ -421,11 +455,11 @@
}
}
-void vp9_idct8x8_12_add_c(const int16_t *input, uint8_t *dest, int stride) {
- int16_t out[8 * 8] = { 0 };
- int16_t *outptr = out;
+void vp9_idct8x8_12_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
+ tran_low_t out[8 * 8] = { 0 };
+ tran_low_t *outptr = out;
int i, j;
- int16_t temp_in[8], temp_out[8];
+ tran_low_t temp_in[8], temp_out[8];
// First transform rows
// only first 4 row has non-zero coefs
@@ -446,9 +480,9 @@
}
}
-static void idct16(const int16_t *input, int16_t *output) {
- int16_t step1[16], step2[16];
- int temp1, temp2;
+static void idct16(const tran_low_t *input, tran_low_t *output) {
+ tran_low_t step1[16], step2[16];
+ tran_high_t temp1, temp2;
// stage 1
step1[0] = input[0/2];
@@ -611,11 +645,12 @@
output[15] = step2[0] - step2[15];
}
-void vp9_idct16x16_256_add_c(const int16_t *input, uint8_t *dest, int stride) {
- int16_t out[16 * 16];
- int16_t *outptr = out;
+void vp9_idct16x16_256_add_c(const tran_low_t *input, uint8_t *dest,
+ int stride) {
+ tran_low_t out[16 * 16];
+ tran_low_t *outptr = out;
int i, j;
- int16_t temp_in[16], temp_out[16];
+ tran_low_t temp_in[16], temp_out[16];
// First transform rows
for (i = 0; i < 16; ++i) {
@@ -635,25 +670,26 @@
}
}
-static void iadst16(const int16_t *input, int16_t *output) {
- int s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15;
+static void iadst16(const tran_low_t *input, tran_low_t *output) {
+ tran_high_t s0, s1, s2, s3, s4, s5, s6, s7, s8;
+ tran_high_t s9, s10, s11, s12, s13, s14, s15;
- int x0 = input[15];
- int x1 = input[0];
- int x2 = input[13];
- int x3 = input[2];
- int x4 = input[11];
- int x5 = input[4];
- int x6 = input[9];
- int x7 = input[6];
- int x8 = input[7];
- int x9 = input[8];
- int x10 = input[5];
- int x11 = input[10];
- int x12 = input[3];
- int x13 = input[12];
- int x14 = input[1];
- int x15 = input[14];
+ tran_high_t x0 = input[15];
+ tran_high_t x1 = input[0];
+ tran_high_t x2 = input[13];
+ tran_high_t x3 = input[2];
+ tran_high_t x4 = input[11];
+ tran_high_t x5 = input[4];
+ tran_high_t x6 = input[9];
+ tran_high_t x7 = input[6];
+ tran_high_t x8 = input[7];
+ tran_high_t x9 = input[8];
+ tran_high_t x10 = input[5];
+ tran_high_t x11 = input[10];
+ tran_high_t x12 = input[3];
+ tran_high_t x13 = input[12];
+ tran_high_t x14 = input[1];
+ tran_high_t x15 = input[14];
if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7 | x8
| x9 | x10 | x11 | x12 | x13 | x14 | x15)) {
@@ -813,12 +849,12 @@
{ iadst16, iadst16 } // ADST_ADST = 3
};
-void vp9_iht16x16_256_add_c(const int16_t *input, uint8_t *dest, int stride,
+void vp9_iht16x16_256_add_c(const tran_low_t *input, uint8_t *dest, int stride,
int tx_type) {
int i, j;
- int16_t out[16 * 16];
- int16_t *outptr = out;
- int16_t temp_in[16], temp_out[16];
+ tran_low_t out[16 * 16];
+ tran_low_t *outptr = out;
+ tran_low_t temp_in[16], temp_out[16];
const transform_2d ht = IHT_16[tx_type];
// Rows
@@ -839,11 +875,12 @@
}
}
-void vp9_idct16x16_10_add_c(const int16_t *input, uint8_t *dest, int stride) {
- int16_t out[16 * 16] = { 0 };
- int16_t *outptr = out;
+void vp9_idct16x16_10_add_c(const tran_low_t *input, uint8_t *dest,
+ int stride) {
+ tran_low_t out[16 * 16] = { 0 };
+ tran_low_t *outptr = out;
int i, j;
- int16_t temp_in[16], temp_out[16];
+ tran_low_t temp_in[16], temp_out[16];
// First transform rows. Since all non-zero dct coefficients are in
// upper-left 4x4 area, we only need to calculate first 4 rows here.
@@ -864,10 +901,10 @@
}
}
-void vp9_idct16x16_1_add_c(const int16_t *input, uint8_t *dest, int stride) {
+void vp9_idct16x16_1_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
int i, j;
- int a1;
- int16_t out = dct_const_round_shift(input[0] * cospi_16_64);
+ tran_high_t a1;
+ tran_low_t out = dct_const_round_shift(input[0] * cospi_16_64);
out = dct_const_round_shift(out * cospi_16_64);
a1 = ROUND_POWER_OF_TWO(out, 6);
for (j = 0; j < 16; ++j) {
@@ -877,9 +914,9 @@
}
}
-static void idct32(const int16_t *input, int16_t *output) {
- int16_t step1[32], step2[32];
- int temp1, temp2;
+static void idct32(const tran_low_t *input, tran_low_t *output) {
+ tran_low_t step1[32], step2[32];
+ tran_high_t temp1, temp2;
// stage 1
step1[0] = input[0];
@@ -1244,11 +1281,12 @@
output[31] = step1[0] - step1[31];
}
-void vp9_idct32x32_1024_add_c(const int16_t *input, uint8_t *dest, int stride) {
- int16_t out[32 * 32];
- int16_t *outptr = out;
+void vp9_idct32x32_1024_add_c(const tran_low_t *input, uint8_t *dest,
+ int stride) {
+ tran_low_t out[32 * 32];
+ tran_low_t *outptr = out;
int i, j;
- int16_t temp_in[32], temp_out[32];
+ tran_low_t temp_in[32], temp_out[32];
// Rows
for (i = 0; i < 32; ++i) {
@@ -1265,7 +1303,7 @@
if (zero_coeff[0] | zero_coeff[1])
idct32(input, outptr);
else
- vpx_memset(outptr, 0, sizeof(int16_t) * 32);
+ vpx_memset(outptr, 0, sizeof(tran_low_t) * 32);
input += 32;
outptr += 32;
}
@@ -1281,11 +1319,12 @@
}
}
-void vp9_idct32x32_34_add_c(const int16_t *input, uint8_t *dest, int stride) {
- int16_t out[32 * 32] = {0};
- int16_t *outptr = out;
+void vp9_idct32x32_34_add_c(const tran_low_t *input, uint8_t *dest,
+ int stride) {
+ tran_low_t out[32 * 32] = {0};
+ tran_low_t *outptr = out;
int i, j;
- int16_t temp_in[32], temp_out[32];
+ tran_low_t temp_in[32], temp_out[32];
// Rows
// only upper-left 8x8 has non-zero coeff
@@ -1306,11 +1345,11 @@
}
}
-void vp9_idct32x32_1_add_c(const int16_t *input, uint8_t *dest, int stride) {
+void vp9_idct32x32_1_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
int i, j;
- int a1;
+ tran_high_t a1;
- int16_t out = dct_const_round_shift(input[0] * cospi_16_64);
+ tran_low_t out = dct_const_round_shift(input[0] * cospi_16_64);
out = dct_const_round_shift(out * cospi_16_64);
a1 = ROUND_POWER_OF_TWO(out, 6);
@@ -1322,7 +1361,8 @@
}
// idct
-void vp9_idct4x4_add(const int16_t *input, uint8_t *dest, int stride, int eob) {
+void vp9_idct4x4_add(const tran_low_t *input, uint8_t *dest, int stride,
+ int eob) {
if (eob > 1)
vp9_idct4x4_16_add(input, dest, stride);
else
@@ -1330,14 +1370,16 @@
}
-void vp9_iwht4x4_add(const int16_t *input, uint8_t *dest, int stride, int eob) {
+void vp9_iwht4x4_add(const tran_low_t *input, uint8_t *dest, int stride,
+ int eob) {
if (eob > 1)
vp9_iwht4x4_16_add(input, dest, stride);
else
vp9_iwht4x4_1_add(input, dest, stride);
}
-void vp9_idct8x8_add(const int16_t *input, uint8_t *dest, int stride, int eob) {
+void vp9_idct8x8_add(const tran_low_t *input, uint8_t *dest, int stride,
+ int eob) {
// If dc is 1, then input[0] is the reconstructed value, do not need
// dequantization. Also, when dc is 1, dc is counted in eobs, namely eobs >=1.
@@ -1354,7 +1396,7 @@
vp9_idct8x8_64_add(input, dest, stride);
}
-void vp9_idct16x16_add(const int16_t *input, uint8_t *dest, int stride,
+void vp9_idct16x16_add(const tran_low_t *input, uint8_t *dest, int stride,
int eob) {
/* The calculation can be simplified if there are not many non-zero dct
* coefficients. Use eobs to separate different cases. */
@@ -1367,7 +1409,7 @@
vp9_idct16x16_256_add(input, dest, stride);
}
-void vp9_idct32x32_add(const int16_t *input, uint8_t *dest, int stride,
+void vp9_idct32x32_add(const tran_low_t *input, uint8_t *dest, int stride,
int eob) {
if (eob == 1)
vp9_idct32x32_1_add(input, dest, stride);
@@ -1379,7 +1421,7 @@
}
// iht
-void vp9_iht4x4_add(TX_TYPE tx_type, const int16_t *input, uint8_t *dest,
+void vp9_iht4x4_add(TX_TYPE tx_type, const tran_low_t *input, uint8_t *dest,
int stride, int eob) {
if (tx_type == DCT_DCT)
vp9_idct4x4_add(input, dest, stride, eob);
@@ -1387,7 +1429,7 @@
vp9_iht4x4_16_add(input, dest, stride, tx_type);
}
-void vp9_iht8x8_add(TX_TYPE tx_type, const int16_t *input, uint8_t *dest,
+void vp9_iht8x8_add(TX_TYPE tx_type, const tran_low_t *input, uint8_t *dest,
int stride, int eob) {
if (tx_type == DCT_DCT) {
vp9_idct8x8_add(input, dest, stride, eob);
@@ -1396,7 +1438,7 @@
}
}
-void vp9_iht16x16_add(TX_TYPE tx_type, const int16_t *input, uint8_t *dest,
+void vp9_iht16x16_add(TX_TYPE tx_type, const tran_low_t *input, uint8_t *dest,
int stride, int eob) {
if (tx_type == DCT_DCT) {
vp9_idct16x16_add(input, dest, stride, eob);
@@ -1404,3 +1446,1433 @@
vp9_iht16x16_256_add(input, dest, stride, tx_type);
}
}
+
+#if CONFIG_VP9_HIGHBITDEPTH
+void vp9_high_iwht4x4_16_add_c(const tran_low_t *input, uint8_t *dest8,
+ int stride, int bd) {
+ /* 4-point reversible, orthonormal inverse Walsh-Hadamard in 3.5 adds,
+ 0.5 shifts per pixel. */
+ int i;
+ tran_low_t output[16];
+ tran_high_t a1, b1, c1, d1, e1;
+ const tran_low_t *ip = input;
+ tran_low_t *op = output;
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+
+ for (i = 0; i < 4; i++) {
+ a1 = ip[0] >> UNIT_QUANT_SHIFT;
+ c1 = ip[1] >> UNIT_QUANT_SHIFT;
+ d1 = ip[2] >> UNIT_QUANT_SHIFT;
+ b1 = ip[3] >> UNIT_QUANT_SHIFT;
+ a1 += c1;
+ d1 -= b1;
+ e1 = (a1 - d1) >> 1;
+ b1 = e1 - b1;
+ c1 = e1 - c1;
+ a1 -= b1;
+ d1 += c1;
+ op[0] = WRAPLOW(a1);
+ op[1] = WRAPLOW(b1);
+ op[2] = WRAPLOW(c1);
+ op[3] = WRAPLOW(d1);
+ ip += 4;
+ op += 4;
+ }
+
+ ip = output;
+ for (i = 0; i < 4; i++) {
+ a1 = ip[4 * 0];
+ c1 = ip[4 * 1];
+ d1 = ip[4 * 2];
+ b1 = ip[4 * 3];
+ a1 += c1;
+ d1 -= b1;
+ e1 = (a1 - d1) >> 1;
+ b1 = e1 - b1;
+ c1 = e1 - c1;
+ a1 -= b1;
+ d1 += c1;
+ dest[stride * 0] = clip_pixel_bd_high(dest[stride * 0], a1, bd);
+ dest[stride * 1] = clip_pixel_bd_high(dest[stride * 1], b1, bd);
+ dest[stride * 2] = clip_pixel_bd_high(dest[stride * 2], c1, bd);
+ dest[stride * 3] = clip_pixel_bd_high(dest[stride * 3], d1, bd);
+
+ ip++;
+ dest++;
+ }
+}
+
+static void high_idct4(const tran_low_t *input, tran_low_t *output, int bd) {
+ tran_low_t step[4];
+ tran_high_t temp1, temp2;
+ (void) bd;
+ // stage 1
+ temp1 = (input[0] + input[2]) * cospi_16_64;
+ temp2 = (input[0] - input[2]) * cospi_16_64;
+ step[0] = WRAPLOW(dct_const_round_shift(temp1));
+ step[1] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = input[1] * cospi_24_64 - input[3] * cospi_8_64;
+ temp2 = input[1] * cospi_8_64 + input[3] * cospi_24_64;
+ step[2] = WRAPLOW(dct_const_round_shift(temp1));
+ step[3] = WRAPLOW(dct_const_round_shift(temp2));
+
+ // stage 2
+ output[0] = WRAPLOW(step[0] + step[3]);
+ output[1] = WRAPLOW(step[1] + step[2]);
+ output[2] = WRAPLOW(step[1] - step[2]);
+ output[3] = WRAPLOW(step[0] - step[3]);
+}
+
+void vp9_high_iwht4x4_1_add_c(const tran_low_t *in, uint8_t *dest8,
+ int dest_stride, int bd) {
+ int i;
+ tran_high_t a1, e1;
+ tran_low_t tmp[4];
+ const tran_low_t *ip = in;
+ tran_low_t *op = tmp;
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+ (void) bd;
+
+ a1 = ip[0] >> UNIT_QUANT_SHIFT;
+ e1 = a1 >> 1;
+ a1 -= e1;
+ op[0] = WRAPLOW(a1);
+ op[1] = op[2] = op[3] = WRAPLOW(e1);
+
+ ip = tmp;
+ for (i = 0; i < 4; i++) {
+ e1 = ip[0] >> 1;
+ a1 = ip[0] - e1;
+ dest[dest_stride * 0] = clip_pixel_bd_high(dest[dest_stride * 0], a1, bd);
+ dest[dest_stride * 1] = clip_pixel_bd_high(dest[dest_stride * 1], e1, bd);
+ dest[dest_stride * 2] = clip_pixel_bd_high(dest[dest_stride * 2], e1, bd);
+ dest[dest_stride * 3] = clip_pixel_bd_high(dest[dest_stride * 3], e1, bd);
+ ip++;
+ dest++;
+ }
+}
+
+void vp9_high_idct4x4_16_add_c(const tran_low_t *input, uint8_t *dest8,
+ int stride, int bd) {
+ tran_low_t out[4 * 4];
+ tran_low_t *outptr = out;
+ int i, j;
+ tran_low_t temp_in[4], temp_out[4];
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+
+ // Rows
+ for (i = 0; i < 4; ++i) {
+ high_idct4(input, outptr, bd);
+ input += 4;
+ outptr += 4;
+ }
+
+ // Columns
+ for (i = 0; i < 4; ++i) {
+ for (j = 0; j < 4; ++j)
+ temp_in[j] = out[j * 4 + i];
+ high_idct4(temp_in, temp_out, bd);
+ for (j = 0; j < 4; ++j)
+ dest[j * stride + i] = clip_pixel_bd_high(
+ dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 4), bd);
+ }
+}
+
+void vp9_high_idct4x4_1_add_c(const tran_low_t *input, uint8_t *dest8,
+ int dest_stride, int bd) {
+ int i;
+ tran_high_t a1;
+ tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64));
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+
+ out = WRAPLOW(dct_const_round_shift(out * cospi_16_64));
+ a1 = ROUND_POWER_OF_TWO(out, 4);
+
+ for (i = 0; i < 4; i++) {
+ dest[0] = clip_pixel_bd_high(dest[0], a1, bd);
+ dest[1] = clip_pixel_bd_high(dest[1], a1, bd);
+ dest[2] = clip_pixel_bd_high(dest[2], a1, bd);
+ dest[3] = clip_pixel_bd_high(dest[3], a1, bd);
+ dest += dest_stride;
+ }
+}
+
+static void high_idct8(const tran_low_t *input, tran_low_t *output, int bd) {
+ tran_low_t step1[8], step2[8];
+ tran_high_t temp1, temp2;
+ // stage 1
+ step1[0] = input[0];
+ step1[2] = input[4];
+ step1[1] = input[2];
+ step1[3] = input[6];
+ temp1 = input[1] * cospi_28_64 - input[7] * cospi_4_64;
+ temp2 = input[1] * cospi_4_64 + input[7] * cospi_28_64;
+ step1[4] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[7] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = input[5] * cospi_12_64 - input[3] * cospi_20_64;
+ temp2 = input[5] * cospi_20_64 + input[3] * cospi_12_64;
+ step1[5] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[6] = WRAPLOW(dct_const_round_shift(temp2));
+
+ // stage 2 & stage 3 - even half
+ high_idct4(step1, step1, bd);
+
+ // stage 2 - odd half
+ step2[4] = WRAPLOW(step1[4] + step1[5]);
+ step2[5] = WRAPLOW(step1[4] - step1[5]);
+ step2[6] = WRAPLOW(-step1[6] + step1[7]);
+ step2[7] = WRAPLOW(step1[6] + step1[7]);
+
+ // stage 3 - odd half
+ step1[4] = step2[4];
+ temp1 = (step2[6] - step2[5]) * cospi_16_64;
+ temp2 = (step2[5] + step2[6]) * cospi_16_64;
+ step1[5] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[6] = WRAPLOW(dct_const_round_shift(temp2));
+ step1[7] = step2[7];
+
+ // stage 4
+ output[0] = WRAPLOW(step1[0] + step1[7]);
+ output[1] = WRAPLOW(step1[1] + step1[6]);
+ output[2] = WRAPLOW(step1[2] + step1[5]);
+ output[3] = WRAPLOW(step1[3] + step1[4]);
+ output[4] = WRAPLOW(step1[3] - step1[4]);
+ output[5] = WRAPLOW(step1[2] - step1[5]);
+ output[6] = WRAPLOW(step1[1] - step1[6]);
+ output[7] = WRAPLOW(step1[0] - step1[7]);
+}
+
+void vp9_high_idct8x8_64_add_c(const tran_low_t *input, uint8_t *dest8,
+ int stride, int bd) {
+ tran_low_t out[8 * 8];
+ tran_low_t *outptr = out;
+ int i, j;
+ tran_low_t temp_in[8], temp_out[8];
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+
+ // First transform rows.
+ for (i = 0; i < 8; ++i) {
+ high_idct8(input, outptr, bd);
+ input += 8;
+ outptr += 8;
+ }
+
+ // Then transform columns.
+ for (i = 0; i < 8; ++i) {
+ for (j = 0; j < 8; ++j)
+ temp_in[j] = out[j * 8 + i];
+ high_idct8(temp_in, temp_out, bd);
+ for (j = 0; j < 8; ++j)
+ dest[j * stride + i] = clip_pixel_bd_high(dest[j * stride + i],
+ ROUND_POWER_OF_TWO(temp_out[j], 5),
+ bd);
+ }
+}
+
+void vp9_high_idct8x8_1_add_c(const tran_low_t *input, uint8_t *dest8,
+ int stride, int bd) {
+ int i, j;
+ tran_high_t a1;
+ tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64));
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+ out = WRAPLOW(dct_const_round_shift(out * cospi_16_64));
+ a1 = ROUND_POWER_OF_TWO(out, 5);
+ for (j = 0; j < 8; ++j) {
+ for (i = 0; i < 8; ++i)
+ dest[i] = clip_pixel_bd_high(dest[i], a1, bd);
+ dest += stride;
+ }
+}
+
+static void high_iadst4(const tran_low_t *input, tran_low_t *output, int bd) {
+ tran_high_t s0, s1, s2, s3, s4, s5, s6, s7;
+
+ tran_high_t x0 = input[0];
+ tran_high_t x1 = input[1];
+ tran_high_t x2 = input[2];
+ tran_high_t x3 = input[3];
+ (void) bd;
+
+ if (!(x0 | x1 | x2 | x3)) {
+ vpx_memset(output, 0, 4 * sizeof(*output));
+ return;
+ }
+
+ s0 = sinpi_1_9 * x0;
+ s1 = sinpi_2_9 * x0;
+ s2 = sinpi_3_9 * x1;
+ s3 = sinpi_4_9 * x2;
+ s4 = sinpi_1_9 * x2;
+ s5 = sinpi_2_9 * x3;
+ s6 = sinpi_4_9 * x3;
+ s7 = x0 - x2 + x3;
+
+ x0 = s0 + s3 + s5;
+ x1 = s1 - s4 - s6;
+ x2 = sinpi_3_9 * s7;
+ x3 = s2;
+
+ s0 = x0 + x3;
+ s1 = x1 + x3;
+ s2 = x2;
+ s3 = x0 + x1 - x3;
+
+ // 1-D transform scaling factor is sqrt(2).
+ // The overall dynamic range is 14b (input) + 14b (multiplication scaling)
+ // + 1b (addition) = 29b.
+ // Hence the output bit depth is 15b.
+ output[0] = WRAPLOW(dct_const_round_shift(s0));
+ output[1] = WRAPLOW(dct_const_round_shift(s1));
+ output[2] = WRAPLOW(dct_const_round_shift(s2));
+ output[3] = WRAPLOW(dct_const_round_shift(s3));
+}
+
+void vp9_high_iht4x4_16_add_c(const tran_low_t *input, uint8_t *dest8,
+ int stride, int tx_type, int bd) {
+ const high_transform_2d IHT_4[] = {
+ { high_idct4, high_idct4 }, // DCT_DCT = 0
+ { high_iadst4, high_idct4 }, // ADST_DCT = 1
+ { high_idct4, high_iadst4 }, // DCT_ADST = 2
+ { high_iadst4, high_iadst4 } // ADST_ADST = 3
+ };
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+
+ int i, j;
+ tran_low_t out[4 * 4];
+ tran_low_t *outptr = out;
+ tran_low_t temp_in[4], temp_out[4];
+
+ // Inverse transform row vectors.
+ for (i = 0; i < 4; ++i) {
+ IHT_4[tx_type].rows(input, outptr, bd);
+ input += 4;
+ outptr += 4;
+ }
+
+ // Inverse transform column vectors.
+ for (i = 0; i < 4; ++i) {
+ for (j = 0; j < 4; ++j)
+ temp_in[j] = out[j * 4 + i];
+ IHT_4[tx_type].cols(temp_in, temp_out, bd);
+ for (j = 0; j < 4; ++j)
+ dest[j * stride + i] = clip_pixel_bd_high(
+ dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 4), bd);
+ }
+}
+
+static void high_iadst8(const tran_low_t *input, tran_low_t *output, int bd) {
+ tran_high_t s0, s1, s2, s3, s4, s5, s6, s7;
+
+ tran_high_t x0 = input[7];
+ tran_high_t x1 = input[0];
+ tran_high_t x2 = input[5];
+ tran_high_t x3 = input[2];
+ tran_high_t x4 = input[3];
+ tran_high_t x5 = input[4];
+ tran_high_t x6 = input[1];
+ tran_high_t x7 = input[6];
+ (void) bd;
+
+ if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7)) {
+ vpx_memset(output, 0, 8 * sizeof(*output));
+ return;
+ }
+
+ // stage 1
+ s0 = cospi_2_64 * x0 + cospi_30_64 * x1;
+ s1 = cospi_30_64 * x0 - cospi_2_64 * x1;
+ s2 = cospi_10_64 * x2 + cospi_22_64 * x3;
+ s3 = cospi_22_64 * x2 - cospi_10_64 * x3;
+ s4 = cospi_18_64 * x4 + cospi_14_64 * x5;
+ s5 = cospi_14_64 * x4 - cospi_18_64 * x5;
+ s6 = cospi_26_64 * x6 + cospi_6_64 * x7;
+ s7 = cospi_6_64 * x6 - cospi_26_64 * x7;
+
+ x0 = WRAPLOW(dct_const_round_shift(s0 + s4));
+ x1 = WRAPLOW(dct_const_round_shift(s1 + s5));
+ x2 = WRAPLOW(dct_const_round_shift(s2 + s6));
+ x3 = WRAPLOW(dct_const_round_shift(s3 + s7));
+ x4 = WRAPLOW(dct_const_round_shift(s0 - s4));
+ x5 = WRAPLOW(dct_const_round_shift(s1 - s5));
+ x6 = WRAPLOW(dct_const_round_shift(s2 - s6));
+ x7 = WRAPLOW(dct_const_round_shift(s3 - s7));
+
+ // stage 2
+ s0 = x0;
+ s1 = x1;
+ s2 = x2;
+ s3 = x3;
+ s4 = cospi_8_64 * x4 + cospi_24_64 * x5;
+ s5 = cospi_24_64 * x4 - cospi_8_64 * x5;
+ s6 = -cospi_24_64 * x6 + cospi_8_64 * x7;
+ s7 = cospi_8_64 * x6 + cospi_24_64 * x7;
+
+ x0 = s0 + s2;
+ x1 = s1 + s3;
+ x2 = s0 - s2;
+ x3 = s1 - s3;
+ x4 = WRAPLOW(dct_const_round_shift(s4 + s6));
+ x5 = WRAPLOW(dct_const_round_shift(s5 + s7));
+ x6 = WRAPLOW(dct_const_round_shift(s4 - s6));
+ x7 = WRAPLOW(dct_const_round_shift(s5 - s7));
+
+ // stage 3
+ s2 = cospi_16_64 * (x2 + x3);
+ s3 = cospi_16_64 * (x2 - x3);
+ s6 = cospi_16_64 * (x6 + x7);
+ s7 = cospi_16_64 * (x6 - x7);
+
+ x2 = WRAPLOW(dct_const_round_shift(s2));
+ x3 = WRAPLOW(dct_const_round_shift(s3));
+ x6 = WRAPLOW(dct_const_round_shift(s6));
+ x7 = WRAPLOW(dct_const_round_shift(s7));
+
+ output[0] = WRAPLOW(x0);
+ output[1] = WRAPLOW(-x4);
+ output[2] = WRAPLOW(x6);
+ output[3] = WRAPLOW(-x2);
+ output[4] = WRAPLOW(x3);
+ output[5] = WRAPLOW(-x7);
+ output[6] = WRAPLOW(x5);
+ output[7] = WRAPLOW(-x1);
+}
+
+static const high_transform_2d HIGH_IHT_8[] = {
+ { high_idct8, high_idct8 }, // DCT_DCT = 0
+ { high_iadst8, high_idct8 }, // ADST_DCT = 1
+ { high_idct8, high_iadst8 }, // DCT_ADST = 2
+ { high_iadst8, high_iadst8 } // ADST_ADST = 3
+};
+
+void vp9_high_iht8x8_64_add_c(const tran_low_t *input, uint8_t *dest8,
+ int stride, int tx_type, int bd) {
+ int i, j;
+ tran_low_t out[8 * 8];
+ tran_low_t *outptr = out;
+ tran_low_t temp_in[8], temp_out[8];
+ const high_transform_2d ht = HIGH_IHT_8[tx_type];
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+
+ // Inverse transform row vectors.
+ for (i = 0; i < 8; ++i) {
+ ht.rows(input, outptr, bd);
+ input += 8;
+ outptr += 8;
+ }
+
+ // Inverse transform column vectors.
+ for (i = 0; i < 8; ++i) {
+ for (j = 0; j < 8; ++j)
+ temp_in[j] = out[j * 8 + i];
+ ht.cols(temp_in, temp_out, bd);
+ for (j = 0; j < 8; ++j)
+ dest[j * stride + i] = clip_pixel_bd_high(
+ dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 5), bd);
+ }
+}
+
+void vp9_high_idct8x8_10_add_c(const tran_low_t *input, uint8_t *dest8,
+ int stride, int bd) {
+ tran_low_t out[8 * 8] = { 0 };
+ tran_low_t *outptr = out;
+ int i, j;
+ tran_low_t temp_in[8], temp_out[8];
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+
+ // First transform rows.
+ // Only first 4 row has non-zero coefs.
+ for (i = 0; i < 4; ++i) {
+ high_idct8(input, outptr, bd);
+ input += 8;
+ outptr += 8;
+ }
+ // Then transform columns.
+ for (i = 0; i < 8; ++i) {
+ for (j = 0; j < 8; ++j)
+ temp_in[j] = out[j * 8 + i];
+ high_idct8(temp_in, temp_out, bd);
+ for (j = 0; j < 8; ++j)
+ dest[j * stride + i] = clip_pixel_bd_high(
+ dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 5), bd);
+ }
+}
+
+static void high_idct16(const tran_low_t *input, tran_low_t *output, int bd) {
+ tran_low_t step1[16], step2[16];
+ tran_high_t temp1, temp2;
+ (void) bd;
+
+ // stage 1
+ step1[0] = input[0/2];
+ step1[1] = input[16/2];
+ step1[2] = input[8/2];
+ step1[3] = input[24/2];
+ step1[4] = input[4/2];
+ step1[5] = input[20/2];
+ step1[6] = input[12/2];
+ step1[7] = input[28/2];
+ step1[8] = input[2/2];
+ step1[9] = input[18/2];
+ step1[10] = input[10/2];
+ step1[11] = input[26/2];
+ step1[12] = input[6/2];
+ step1[13] = input[22/2];
+ step1[14] = input[14/2];
+ step1[15] = input[30/2];
+
+ // stage 2
+ step2[0] = step1[0];
+ step2[1] = step1[1];
+ step2[2] = step1[2];
+ step2[3] = step1[3];
+ step2[4] = step1[4];
+ step2[5] = step1[5];
+ step2[6] = step1[6];
+ step2[7] = step1[7];
+
+ temp1 = step1[8] * cospi_30_64 - step1[15] * cospi_2_64;
+ temp2 = step1[8] * cospi_2_64 + step1[15] * cospi_30_64;
+ step2[8] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[15] = WRAPLOW(dct_const_round_shift(temp2));
+
+ temp1 = step1[9] * cospi_14_64 - step1[14] * cospi_18_64;
+ temp2 = step1[9] * cospi_18_64 + step1[14] * cospi_14_64;
+ step2[9] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[14] = WRAPLOW(dct_const_round_shift(temp2));
+
+ temp1 = step1[10] * cospi_22_64 - step1[13] * cospi_10_64;
+ temp2 = step1[10] * cospi_10_64 + step1[13] * cospi_22_64;
+ step2[10] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[13] = WRAPLOW(dct_const_round_shift(temp2));
+
+ temp1 = step1[11] * cospi_6_64 - step1[12] * cospi_26_64;
+ temp2 = step1[11] * cospi_26_64 + step1[12] * cospi_6_64;
+ step2[11] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[12] = WRAPLOW(dct_const_round_shift(temp2));
+
+ // stage 3
+ step1[0] = step2[0];
+ step1[1] = step2[1];
+ step1[2] = step2[2];
+ step1[3] = step2[3];
+
+ temp1 = step2[4] * cospi_28_64 - step2[7] * cospi_4_64;
+ temp2 = step2[4] * cospi_4_64 + step2[7] * cospi_28_64;
+ step1[4] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[7] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = step2[5] * cospi_12_64 - step2[6] * cospi_20_64;
+ temp2 = step2[5] * cospi_20_64 + step2[6] * cospi_12_64;
+ step1[5] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[6] = WRAPLOW(dct_const_round_shift(temp2));
+
+ step1[8] = WRAPLOW(step2[8] + step2[9]);
+ step1[9] = WRAPLOW(step2[8] - step2[9]);
+ step1[10] = WRAPLOW(-step2[10] + step2[11]);
+ step1[11] = WRAPLOW(step2[10] + step2[11]);
+ step1[12] = WRAPLOW(step2[12] + step2[13]);
+ step1[13] = WRAPLOW(step2[12] - step2[13]);
+ step1[14] = WRAPLOW(-step2[14] + step2[15]);
+ step1[15] = WRAPLOW(step2[14] + step2[15]);
+
+ // stage 4
+ temp1 = (step1[0] + step1[1]) * cospi_16_64;
+ temp2 = (step1[0] - step1[1]) * cospi_16_64;
+ step2[0] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[1] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = step1[2] * cospi_24_64 - step1[3] * cospi_8_64;
+ temp2 = step1[2] * cospi_8_64 + step1[3] * cospi_24_64;
+ step2[2] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[3] = WRAPLOW(dct_const_round_shift(temp2));
+ step2[4] = WRAPLOW(step1[4] + step1[5]);
+ step2[5] = WRAPLOW(step1[4] - step1[5]);
+ step2[6] = WRAPLOW(-step1[6] + step1[7]);
+ step2[7] = WRAPLOW(step1[6] + step1[7]);
+
+ step2[8] = step1[8];
+ step2[15] = step1[15];
+ temp1 = -step1[9] * cospi_8_64 + step1[14] * cospi_24_64;
+ temp2 = step1[9] * cospi_24_64 + step1[14] * cospi_8_64;
+ step2[9] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[14] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = -step1[10] * cospi_24_64 - step1[13] * cospi_8_64;
+ temp2 = -step1[10] * cospi_8_64 + step1[13] * cospi_24_64;
+ step2[10] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[13] = WRAPLOW(dct_const_round_shift(temp2));
+ step2[11] = step1[11];
+ step2[12] = step1[12];
+
+ // stage 5
+ step1[0] = WRAPLOW(step2[0] + step2[3]);
+ step1[1] = WRAPLOW(step2[1] + step2[2]);
+ step1[2] = WRAPLOW(step2[1] - step2[2]);
+ step1[3] = WRAPLOW(step2[0] - step2[3]);
+ step1[4] = step2[4];
+ temp1 = (step2[6] - step2[5]) * cospi_16_64;
+ temp2 = (step2[5] + step2[6]) * cospi_16_64;
+ step1[5] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[6] = WRAPLOW(dct_const_round_shift(temp2));
+ step1[7] = step2[7];
+
+ step1[8] = WRAPLOW(step2[8] + step2[11]);
+ step1[9] = WRAPLOW(step2[9] + step2[10]);
+ step1[10] = WRAPLOW(step2[9] - step2[10]);
+ step1[11] = WRAPLOW(step2[8] - step2[11]);
+ step1[12] = WRAPLOW(-step2[12] + step2[15]);
+ step1[13] = WRAPLOW(-step2[13] + step2[14]);
+ step1[14] = WRAPLOW(step2[13] + step2[14]);
+ step1[15] = WRAPLOW(step2[12] + step2[15]);
+
+ // stage 6
+ step2[0] = WRAPLOW(step1[0] + step1[7]);
+ step2[1] = WRAPLOW(step1[1] + step1[6]);
+ step2[2] = WRAPLOW(step1[2] + step1[5]);
+ step2[3] = WRAPLOW(step1[3] + step1[4]);
+ step2[4] = WRAPLOW(step1[3] - step1[4]);
+ step2[5] = WRAPLOW(step1[2] - step1[5]);
+ step2[6] = WRAPLOW(step1[1] - step1[6]);
+ step2[7] = WRAPLOW(step1[0] - step1[7]);
+ step2[8] = step1[8];
+ step2[9] = step1[9];
+ temp1 = (-step1[10] + step1[13]) * cospi_16_64;
+ temp2 = (step1[10] + step1[13]) * cospi_16_64;
+ step2[10] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[13] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = (-step1[11] + step1[12]) * cospi_16_64;
+ temp2 = (step1[11] + step1[12]) * cospi_16_64;
+ step2[11] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[12] = WRAPLOW(dct_const_round_shift(temp2));
+ step2[14] = step1[14];
+ step2[15] = step1[15];
+
+ // stage 7
+ output[0] = WRAPLOW(step2[0] + step2[15]);
+ output[1] = WRAPLOW(step2[1] + step2[14]);
+ output[2] = WRAPLOW(step2[2] + step2[13]);
+ output[3] = WRAPLOW(step2[3] + step2[12]);
+ output[4] = WRAPLOW(step2[4] + step2[11]);
+ output[5] = WRAPLOW(step2[5] + step2[10]);
+ output[6] = WRAPLOW(step2[6] + step2[9]);
+ output[7] = WRAPLOW(step2[7] + step2[8]);
+ output[8] = WRAPLOW(step2[7] - step2[8]);
+ output[9] = WRAPLOW(step2[6] - step2[9]);
+ output[10] = WRAPLOW(step2[5] - step2[10]);
+ output[11] = WRAPLOW(step2[4] - step2[11]);
+ output[12] = WRAPLOW(step2[3] - step2[12]);
+ output[13] = WRAPLOW(step2[2] - step2[13]);
+ output[14] = WRAPLOW(step2[1] - step2[14]);
+ output[15] = WRAPLOW(step2[0] - step2[15]);
+}
+
+void vp9_high_idct16x16_256_add_c(const tran_low_t *input, uint8_t *dest8,
+ int stride, int bd) {
+ tran_low_t out[16 * 16];
+ tran_low_t *outptr = out;
+ int i, j;
+ tran_low_t temp_in[16], temp_out[16];
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+
+ // First transform rows.
+ for (i = 0; i < 16; ++i) {
+ high_idct16(input, outptr, bd);
+ input += 16;
+ outptr += 16;
+ }
+
+ // Then transform columns.
+ for (i = 0; i < 16; ++i) {
+ for (j = 0; j < 16; ++j)
+ temp_in[j] = out[j * 16 + i];
+ high_idct16(temp_in, temp_out, bd);
+ for (j = 0; j < 16; ++j)
+ dest[j * stride + i] = clip_pixel_bd_high(
+ dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd);
+ }
+}
+
+static void high_iadst16(const tran_low_t *input, tran_low_t *output, int bd) {
+ tran_high_t s0, s1, s2, s3, s4, s5, s6, s7, s8;
+ tran_high_t s9, s10, s11, s12, s13, s14, s15;
+
+ tran_high_t x0 = input[15];
+ tran_high_t x1 = input[0];
+ tran_high_t x2 = input[13];
+ tran_high_t x3 = input[2];
+ tran_high_t x4 = input[11];
+ tran_high_t x5 = input[4];
+ tran_high_t x6 = input[9];
+ tran_high_t x7 = input[6];
+ tran_high_t x8 = input[7];
+ tran_high_t x9 = input[8];
+ tran_high_t x10 = input[5];
+ tran_high_t x11 = input[10];
+ tran_high_t x12 = input[3];
+ tran_high_t x13 = input[12];
+ tran_high_t x14 = input[1];
+ tran_high_t x15 = input[14];
+ (void) bd;
+
+ if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7 | x8
+ | x9 | x10 | x11 | x12 | x13 | x14 | x15)) {
+ vpx_memset(output, 0, 16 * sizeof(*output));
+ return;
+ }
+
+ // stage 1
+ s0 = x0 * cospi_1_64 + x1 * cospi_31_64;
+ s1 = x0 * cospi_31_64 - x1 * cospi_1_64;
+ s2 = x2 * cospi_5_64 + x3 * cospi_27_64;
+ s3 = x2 * cospi_27_64 - x3 * cospi_5_64;
+ s4 = x4 * cospi_9_64 + x5 * cospi_23_64;
+ s5 = x4 * cospi_23_64 - x5 * cospi_9_64;
+ s6 = x6 * cospi_13_64 + x7 * cospi_19_64;
+ s7 = x6 * cospi_19_64 - x7 * cospi_13_64;
+ s8 = x8 * cospi_17_64 + x9 * cospi_15_64;
+ s9 = x8 * cospi_15_64 - x9 * cospi_17_64;
+ s10 = x10 * cospi_21_64 + x11 * cospi_11_64;
+ s11 = x10 * cospi_11_64 - x11 * cospi_21_64;
+ s12 = x12 * cospi_25_64 + x13 * cospi_7_64;
+ s13 = x12 * cospi_7_64 - x13 * cospi_25_64;
+ s14 = x14 * cospi_29_64 + x15 * cospi_3_64;
+ s15 = x14 * cospi_3_64 - x15 * cospi_29_64;
+
+ x0 = WRAPLOW(dct_const_round_shift(s0 + s8));
+ x1 = WRAPLOW(dct_const_round_shift(s1 + s9));
+ x2 = WRAPLOW(dct_const_round_shift(s2 + s10));
+ x3 = WRAPLOW(dct_const_round_shift(s3 + s11));
+ x4 = WRAPLOW(dct_const_round_shift(s4 + s12));
+ x5 = WRAPLOW(dct_const_round_shift(s5 + s13));
+ x6 = WRAPLOW(dct_const_round_shift(s6 + s14));
+ x7 = WRAPLOW(dct_const_round_shift(s7 + s15));
+ x8 = WRAPLOW(dct_const_round_shift(s0 - s8));
+ x9 = WRAPLOW(dct_const_round_shift(s1 - s9));
+ x10 = WRAPLOW(dct_const_round_shift(s2 - s10));
+ x11 = WRAPLOW(dct_const_round_shift(s3 - s11));
+ x12 = WRAPLOW(dct_const_round_shift(s4 - s12));
+ x13 = WRAPLOW(dct_const_round_shift(s5 - s13));
+ x14 = WRAPLOW(dct_const_round_shift(s6 - s14));
+ x15 = WRAPLOW(dct_const_round_shift(s7 - s15));
+
+ // stage 2
+ s0 = x0;
+ s1 = x1;
+ s2 = x2;
+ s3 = x3;
+ s4 = x4;
+ s5 = x5;
+ s6 = x6;
+ s7 = x7;
+ s8 = x8 * cospi_4_64 + x9 * cospi_28_64;
+ s9 = x8 * cospi_28_64 - x9 * cospi_4_64;
+ s10 = x10 * cospi_20_64 + x11 * cospi_12_64;
+ s11 = x10 * cospi_12_64 - x11 * cospi_20_64;
+ s12 = -x12 * cospi_28_64 + x13 * cospi_4_64;
+ s13 = x12 * cospi_4_64 + x13 * cospi_28_64;
+ s14 = -x14 * cospi_12_64 + x15 * cospi_20_64;
+ s15 = x14 * cospi_20_64 + x15 * cospi_12_64;
+
+ x0 = WRAPLOW(s0 + s4);
+ x1 = WRAPLOW(s1 + s5);
+ x2 = WRAPLOW(s2 + s6);
+ x3 = WRAPLOW(s3 + s7);
+ x4 = WRAPLOW(s0 - s4);
+ x5 = WRAPLOW(s1 - s5);
+ x6 = WRAPLOW(s2 - s6);
+ x7 = WRAPLOW(s3 - s7);
+ x8 = WRAPLOW(dct_const_round_shift(s8 + s12));
+ x9 = WRAPLOW(dct_const_round_shift(s9 + s13));
+ x10 = WRAPLOW(dct_const_round_shift(s10 + s14));
+ x11 = WRAPLOW(dct_const_round_shift(s11 + s15));
+ x12 = WRAPLOW(dct_const_round_shift(s8 - s12));
+ x13 = WRAPLOW(dct_const_round_shift(s9 - s13));
+ x14 = WRAPLOW(dct_const_round_shift(s10 - s14));
+ x15 = WRAPLOW(dct_const_round_shift(s11 - s15));
+
+ // stage 3
+ s0 = x0;
+ s1 = x1;
+ s2 = x2;
+ s3 = x3;
+ s4 = x4 * cospi_8_64 + x5 * cospi_24_64;
+ s5 = x4 * cospi_24_64 - x5 * cospi_8_64;
+ s6 = -x6 * cospi_24_64 + x7 * cospi_8_64;
+ s7 = x6 * cospi_8_64 + x7 * cospi_24_64;
+ s8 = x8;
+ s9 = x9;
+ s10 = x10;
+ s11 = x11;
+ s12 = x12 * cospi_8_64 + x13 * cospi_24_64;
+ s13 = x12 * cospi_24_64 - x13 * cospi_8_64;
+ s14 = -x14 * cospi_24_64 + x15 * cospi_8_64;
+ s15 = x14 * cospi_8_64 + x15 * cospi_24_64;
+
+ x0 = WRAPLOW(s0 + s2);
+ x1 = WRAPLOW(s1 + s3);
+ x2 = WRAPLOW(s0 - s2);
+ x3 = WRAPLOW(s1 - s3);
+ x4 = WRAPLOW(dct_const_round_shift(s4 + s6));
+ x5 = WRAPLOW(dct_const_round_shift(s5 + s7));
+ x6 = WRAPLOW(dct_const_round_shift(s4 - s6));
+ x7 = WRAPLOW(dct_const_round_shift(s5 - s7));
+ x8 = WRAPLOW(s8 + s10);
+ x9 = WRAPLOW(s9 + s11);
+ x10 = WRAPLOW(s8 - s10);
+ x11 = WRAPLOW(s9 - s11);
+ x12 = WRAPLOW(dct_const_round_shift(s12 + s14));
+ x13 = WRAPLOW(dct_const_round_shift(s13 + s15));
+ x14 = WRAPLOW(dct_const_round_shift(s12 - s14));
+ x15 = WRAPLOW(dct_const_round_shift(s13 - s15));
+
+ // stage 4
+ s2 = (- cospi_16_64) * (x2 + x3);
+ s3 = cospi_16_64 * (x2 - x3);
+ s6 = cospi_16_64 * (x6 + x7);
+ s7 = cospi_16_64 * (-x6 + x7);
+ s10 = cospi_16_64 * (x10 + x11);
+ s11 = cospi_16_64 * (-x10 + x11);
+ s14 = (- cospi_16_64) * (x14 + x15);
+ s15 = cospi_16_64 * (x14 - x15);
+
+ x2 = WRAPLOW(dct_const_round_shift(s2));
+ x3 = WRAPLOW(dct_const_round_shift(s3));
+ x6 = WRAPLOW(dct_const_round_shift(s6));
+ x7 = WRAPLOW(dct_const_round_shift(s7));
+ x10 = WRAPLOW(dct_const_round_shift(s10));
+ x11 = WRAPLOW(dct_const_round_shift(s11));
+ x14 = WRAPLOW(dct_const_round_shift(s14));
+ x15 = WRAPLOW(dct_const_round_shift(s15));
+
+ output[0] = WRAPLOW(x0);
+ output[1] = WRAPLOW(-x8);
+ output[2] = WRAPLOW(x12);
+ output[3] = WRAPLOW(-x4);
+ output[4] = WRAPLOW(x6);
+ output[5] = WRAPLOW(x14);
+ output[6] = WRAPLOW(x10);
+ output[7] = WRAPLOW(x2);
+ output[8] = WRAPLOW(x3);
+ output[9] = WRAPLOW(x11);
+ output[10] = WRAPLOW(x15);
+ output[11] = WRAPLOW(x7);
+ output[12] = WRAPLOW(x5);
+ output[13] = WRAPLOW(-x13);
+ output[14] = WRAPLOW(x9);
+ output[15] = WRAPLOW(-x1);
+}
+
+static const high_transform_2d HIGH_IHT_16[] = {
+ { high_idct16, high_idct16 }, // DCT_DCT = 0
+ { high_iadst16, high_idct16 }, // ADST_DCT = 1
+ { high_idct16, high_iadst16 }, // DCT_ADST = 2
+ { high_iadst16, high_iadst16 } // ADST_ADST = 3
+};
+
+void vp9_high_iht16x16_256_add_c(const tran_low_t *input, uint8_t *dest8,
+ int stride, int tx_type, int bd) {
+ int i, j;
+ tran_low_t out[16 * 16];
+ tran_low_t *outptr = out;
+ tran_low_t temp_in[16], temp_out[16];
+ const high_transform_2d ht = HIGH_IHT_16[tx_type];
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+
+ // Rows
+ for (i = 0; i < 16; ++i) {
+ ht.rows(input, outptr, bd);
+ input += 16;
+ outptr += 16;
+ }
+
+ // Columns
+ for (i = 0; i < 16; ++i) {
+ for (j = 0; j < 16; ++j)
+ temp_in[j] = out[j * 16 + i];
+ ht.cols(temp_in, temp_out, bd);
+ for (j = 0; j < 16; ++j)
+ dest[j * stride + i] = clip_pixel_bd_high(
+ dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd);
+ }
+}
+
+void vp9_high_idct16x16_10_add_c(const tran_low_t *input, uint8_t *dest8,
+ int stride, int bd) {
+ tran_low_t out[16 * 16] = { 0 };
+ tran_low_t *outptr = out;
+ int i, j;
+ tran_low_t temp_in[16], temp_out[16];
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+
+ // First transform rows. Since all non-zero dct coefficients are in
+ // upper-left 4x4 area, we only need to calculate first 4 rows here.
+ for (i = 0; i < 4; ++i) {
+ high_idct16(input, outptr, bd);
+ input += 16;
+ outptr += 16;
+ }
+
+ // Then transform columns.
+ for (i = 0; i < 16; ++i) {
+ for (j = 0; j < 16; ++j)
+ temp_in[j] = out[j*16 + i];
+ high_idct16(temp_in, temp_out, bd);
+ for (j = 0; j < 16; ++j)
+ dest[j * stride + i] = clip_pixel_bd_high(
+ dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd);
+ }
+}
+
+void vp9_high_idct16x16_1_add_c(const tran_low_t *input, uint8_t *dest8,
+ int stride, int bd) {
+ int i, j;
+ tran_high_t a1;
+ tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64));
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+
+ out = WRAPLOW(dct_const_round_shift(out * cospi_16_64));
+ a1 = ROUND_POWER_OF_TWO(out, 6);
+ for (j = 0; j < 16; ++j) {
+ for (i = 0; i < 16; ++i)
+ dest[i] = clip_pixel_bd_high(dest[i], a1, bd);
+ dest += stride;
+ }
+}
+
+static void high_idct32(const tran_low_t *input, tran_low_t *output, int bd) {
+ tran_low_t step1[32], step2[32];
+ tran_high_t temp1, temp2;
+ (void) bd;
+
+ // stage 1
+ step1[0] = input[0];
+ step1[1] = input[16];
+ step1[2] = input[8];
+ step1[3] = input[24];
+ step1[4] = input[4];
+ step1[5] = input[20];
+ step1[6] = input[12];
+ step1[7] = input[28];
+ step1[8] = input[2];
+ step1[9] = input[18];
+ step1[10] = input[10];
+ step1[11] = input[26];
+ step1[12] = input[6];
+ step1[13] = input[22];
+ step1[14] = input[14];
+ step1[15] = input[30];
+
+ temp1 = input[1] * cospi_31_64 - input[31] * cospi_1_64;
+ temp2 = input[1] * cospi_1_64 + input[31] * cospi_31_64;
+ step1[16] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[31] = WRAPLOW(dct_const_round_shift(temp2));
+
+ temp1 = input[17] * cospi_15_64 - input[15] * cospi_17_64;
+ temp2 = input[17] * cospi_17_64 + input[15] * cospi_15_64;
+ step1[17] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[30] = WRAPLOW(dct_const_round_shift(temp2));
+
+ temp1 = input[9] * cospi_23_64 - input[23] * cospi_9_64;
+ temp2 = input[9] * cospi_9_64 + input[23] * cospi_23_64;
+ step1[18] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[29] = WRAPLOW(dct_const_round_shift(temp2));
+
+ temp1 = input[25] * cospi_7_64 - input[7] * cospi_25_64;
+ temp2 = input[25] * cospi_25_64 + input[7] * cospi_7_64;
+ step1[19] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[28] = WRAPLOW(dct_const_round_shift(temp2));
+
+ temp1 = input[5] * cospi_27_64 - input[27] * cospi_5_64;
+ temp2 = input[5] * cospi_5_64 + input[27] * cospi_27_64;
+ step1[20] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[27] = WRAPLOW(dct_const_round_shift(temp2));
+
+ temp1 = input[21] * cospi_11_64 - input[11] * cospi_21_64;
+ temp2 = input[21] * cospi_21_64 + input[11] * cospi_11_64;
+ step1[21] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[26] = WRAPLOW(dct_const_round_shift(temp2));
+
+ temp1 = input[13] * cospi_19_64 - input[19] * cospi_13_64;
+ temp2 = input[13] * cospi_13_64 + input[19] * cospi_19_64;
+ step1[22] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[25] = WRAPLOW(dct_const_round_shift(temp2));
+
+ temp1 = input[29] * cospi_3_64 - input[3] * cospi_29_64;
+ temp2 = input[29] * cospi_29_64 + input[3] * cospi_3_64;
+ step1[23] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[24] = WRAPLOW(dct_const_round_shift(temp2));
+
+ // stage 2
+ step2[0] = step1[0];
+ step2[1] = step1[1];
+ step2[2] = step1[2];
+ step2[3] = step1[3];
+ step2[4] = step1[4];
+ step2[5] = step1[5];
+ step2[6] = step1[6];
+ step2[7] = step1[7];
+
+ temp1 = step1[8] * cospi_30_64 - step1[15] * cospi_2_64;
+ temp2 = step1[8] * cospi_2_64 + step1[15] * cospi_30_64;
+ step2[8] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[15] = WRAPLOW(dct_const_round_shift(temp2));
+
+ temp1 = step1[9] * cospi_14_64 - step1[14] * cospi_18_64;
+ temp2 = step1[9] * cospi_18_64 + step1[14] * cospi_14_64;
+ step2[9] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[14] = WRAPLOW(dct_const_round_shift(temp2));
+
+ temp1 = step1[10] * cospi_22_64 - step1[13] * cospi_10_64;
+ temp2 = step1[10] * cospi_10_64 + step1[13] * cospi_22_64;
+ step2[10] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[13] = WRAPLOW(dct_const_round_shift(temp2));
+
+ temp1 = step1[11] * cospi_6_64 - step1[12] * cospi_26_64;
+ temp2 = step1[11] * cospi_26_64 + step1[12] * cospi_6_64;
+ step2[11] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[12] = WRAPLOW(dct_const_round_shift(temp2));
+
+ step2[16] = WRAPLOW(step1[16] + step1[17]);
+ step2[17] = WRAPLOW(step1[16] - step1[17]);
+ step2[18] = WRAPLOW(-step1[18] + step1[19]);
+ step2[19] = WRAPLOW(step1[18] + step1[19]);
+ step2[20] = WRAPLOW(step1[20] + step1[21]);
+ step2[21] = WRAPLOW(step1[20] - step1[21]);
+ step2[22] = WRAPLOW(-step1[22] + step1[23]);
+ step2[23] = WRAPLOW(step1[22] + step1[23]);
+ step2[24] = WRAPLOW(step1[24] + step1[25]);
+ step2[25] = WRAPLOW(step1[24] - step1[25]);
+ step2[26] = WRAPLOW(-step1[26] + step1[27]);
+ step2[27] = WRAPLOW(step1[26] + step1[27]);
+ step2[28] = WRAPLOW(step1[28] + step1[29]);
+ step2[29] = WRAPLOW(step1[28] - step1[29]);
+ step2[30] = WRAPLOW(-step1[30] + step1[31]);
+ step2[31] = WRAPLOW(step1[30] + step1[31]);
+
+ // stage 3
+ step1[0] = step2[0];
+ step1[1] = step2[1];
+ step1[2] = step2[2];
+ step1[3] = step2[3];
+
+ temp1 = step2[4] * cospi_28_64 - step2[7] * cospi_4_64;
+ temp2 = step2[4] * cospi_4_64 + step2[7] * cospi_28_64;
+ step1[4] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[7] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = step2[5] * cospi_12_64 - step2[6] * cospi_20_64;
+ temp2 = step2[5] * cospi_20_64 + step2[6] * cospi_12_64;
+ step1[5] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[6] = WRAPLOW(dct_const_round_shift(temp2));
+
+ step1[8] = WRAPLOW(step2[8] + step2[9]);
+ step1[9] = WRAPLOW(step2[8] - step2[9]);
+ step1[10] = WRAPLOW(-step2[10] + step2[11]);
+ step1[11] = WRAPLOW(step2[10] + step2[11]);
+ step1[12] = WRAPLOW(step2[12] + step2[13]);
+ step1[13] = WRAPLOW(step2[12] - step2[13]);
+ step1[14] = WRAPLOW(-step2[14] + step2[15]);
+ step1[15] = WRAPLOW(step2[14] + step2[15]);
+
+ step1[16] = step2[16];
+ step1[31] = step2[31];
+ temp1 = -step2[17] * cospi_4_64 + step2[30] * cospi_28_64;
+ temp2 = step2[17] * cospi_28_64 + step2[30] * cospi_4_64;
+ step1[17] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[30] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = -step2[18] * cospi_28_64 - step2[29] * cospi_4_64;
+ temp2 = -step2[18] * cospi_4_64 + step2[29] * cospi_28_64;
+ step1[18] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[29] = WRAPLOW(dct_const_round_shift(temp2));
+ step1[19] = step2[19];
+ step1[20] = step2[20];
+ temp1 = -step2[21] * cospi_20_64 + step2[26] * cospi_12_64;
+ temp2 = step2[21] * cospi_12_64 + step2[26] * cospi_20_64;
+ step1[21] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[26] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = -step2[22] * cospi_12_64 - step2[25] * cospi_20_64;
+ temp2 = -step2[22] * cospi_20_64 + step2[25] * cospi_12_64;
+ step1[22] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[25] = WRAPLOW(dct_const_round_shift(temp2));
+ step1[23] = step2[23];
+ step1[24] = step2[24];
+ step1[27] = step2[27];
+ step1[28] = step2[28];
+
+ // stage 4
+ temp1 = (step1[0] + step1[1]) * cospi_16_64;
+ temp2 = (step1[0] - step1[1]) * cospi_16_64;
+ step2[0] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[1] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = step1[2] * cospi_24_64 - step1[3] * cospi_8_64;
+ temp2 = step1[2] * cospi_8_64 + step1[3] * cospi_24_64;
+ step2[2] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[3] = WRAPLOW(dct_const_round_shift(temp2));
+ step2[4] = WRAPLOW(step1[4] + step1[5]);
+ step2[5] = WRAPLOW(step1[4] - step1[5]);
+ step2[6] = WRAPLOW(-step1[6] + step1[7]);
+ step2[7] = WRAPLOW(step1[6] + step1[7]);
+
+ step2[8] = step1[8];
+ step2[15] = step1[15];
+ temp1 = -step1[9] * cospi_8_64 + step1[14] * cospi_24_64;
+ temp2 = step1[9] * cospi_24_64 + step1[14] * cospi_8_64;
+ step2[9] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[14] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = -step1[10] * cospi_24_64 - step1[13] * cospi_8_64;
+ temp2 = -step1[10] * cospi_8_64 + step1[13] * cospi_24_64;
+ step2[10] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[13] = WRAPLOW(dct_const_round_shift(temp2));
+ step2[11] = step1[11];
+ step2[12] = step1[12];
+
+ step2[16] = WRAPLOW(step1[16] + step1[19]);
+ step2[17] = WRAPLOW(step1[17] + step1[18]);
+ step2[18] = WRAPLOW(step1[17] - step1[18]);
+ step2[19] = WRAPLOW(step1[16] - step1[19]);
+ step2[20] = WRAPLOW(-step1[20] + step1[23]);
+ step2[21] = WRAPLOW(-step1[21] + step1[22]);
+ step2[22] = WRAPLOW(step1[21] + step1[22]);
+ step2[23] = WRAPLOW(step1[20] + step1[23]);
+
+ step2[24] = WRAPLOW(step1[24] + step1[27]);
+ step2[25] = WRAPLOW(step1[25] + step1[26]);
+ step2[26] = WRAPLOW(step1[25] - step1[26]);
+ step2[27] = WRAPLOW(step1[24] - step1[27]);
+ step2[28] = WRAPLOW(-step1[28] + step1[31]);
+ step2[29] = WRAPLOW(-step1[29] + step1[30]);
+ step2[30] = WRAPLOW(step1[29] + step1[30]);
+ step2[31] = WRAPLOW(step1[28] + step1[31]);
+
+ // stage 5
+ step1[0] = WRAPLOW(step2[0] + step2[3]);
+ step1[1] = WRAPLOW(step2[1] + step2[2]);
+ step1[2] = WRAPLOW(step2[1] - step2[2]);
+ step1[3] = WRAPLOW(step2[0] - step2[3]);
+ step1[4] = step2[4];
+ temp1 = (step2[6] - step2[5]) * cospi_16_64;
+ temp2 = (step2[5] + step2[6]) * cospi_16_64;
+ step1[5] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[6] = WRAPLOW(dct_const_round_shift(temp2));
+ step1[7] = step2[7];
+
+ step1[8] = WRAPLOW(step2[8] + step2[11]);
+ step1[9] = WRAPLOW(step2[9] + step2[10]);
+ step1[10] = WRAPLOW(step2[9] - step2[10]);
+ step1[11] = WRAPLOW(step2[8] - step2[11]);
+ step1[12] = WRAPLOW(-step2[12] + step2[15]);
+ step1[13] = WRAPLOW(-step2[13] + step2[14]);
+ step1[14] = WRAPLOW(step2[13] + step2[14]);
+ step1[15] = WRAPLOW(step2[12] + step2[15]);
+
+ step1[16] = step2[16];
+ step1[17] = step2[17];
+ temp1 = -step2[18] * cospi_8_64 + step2[29] * cospi_24_64;
+ temp2 = step2[18] * cospi_24_64 + step2[29] * cospi_8_64;
+ step1[18] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[29] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = -step2[19] * cospi_8_64 + step2[28] * cospi_24_64;
+ temp2 = step2[19] * cospi_24_64 + step2[28] * cospi_8_64;
+ step1[19] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[28] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = -step2[20] * cospi_24_64 - step2[27] * cospi_8_64;
+ temp2 = -step2[20] * cospi_8_64 + step2[27] * cospi_24_64;
+ step1[20] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[27] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = -step2[21] * cospi_24_64 - step2[26] * cospi_8_64;
+ temp2 = -step2[21] * cospi_8_64 + step2[26] * cospi_24_64;
+ step1[21] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[26] = WRAPLOW(dct_const_round_shift(temp2));
+ step1[22] = step2[22];
+ step1[23] = step2[23];
+ step1[24] = step2[24];
+ step1[25] = step2[25];
+ step1[30] = step2[30];
+ step1[31] = step2[31];
+
+ // stage 6
+ step2[0] = WRAPLOW(step1[0] + step1[7]);
+ step2[1] = WRAPLOW(step1[1] + step1[6]);
+ step2[2] = WRAPLOW(step1[2] + step1[5]);
+ step2[3] = WRAPLOW(step1[3] + step1[4]);
+ step2[4] = WRAPLOW(step1[3] - step1[4]);
+ step2[5] = WRAPLOW(step1[2] - step1[5]);
+ step2[6] = WRAPLOW(step1[1] - step1[6]);
+ step2[7] = WRAPLOW(step1[0] - step1[7]);
+ step2[8] = step1[8];
+ step2[9] = step1[9];
+ temp1 = (-step1[10] + step1[13]) * cospi_16_64;
+ temp2 = (step1[10] + step1[13]) * cospi_16_64;
+ step2[10] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[13] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = (-step1[11] + step1[12]) * cospi_16_64;
+ temp2 = (step1[11] + step1[12]) * cospi_16_64;
+ step2[11] = WRAPLOW(dct_const_round_shift(temp1));
+ step2[12] = WRAPLOW(dct_const_round_shift(temp2));
+ step2[14] = WRAPLOW(step1[14]);
+ step2[15] = WRAPLOW(step1[15]);
+
+ step2[16] = WRAPLOW(step1[16] + step1[23]);
+ step2[17] = WRAPLOW(step1[17] + step1[22]);
+ step2[18] = WRAPLOW(step1[18] + step1[21]);
+ step2[19] = WRAPLOW(step1[19] + step1[20]);
+ step2[20] = WRAPLOW(step1[19] - step1[20]);
+ step2[21] = WRAPLOW(step1[18] - step1[21]);
+ step2[22] = WRAPLOW(step1[17] - step1[22]);
+ step2[23] = WRAPLOW(step1[16] - step1[23]);
+
+ step2[24] = WRAPLOW(-step1[24] + step1[31]);
+ step2[25] = WRAPLOW(-step1[25] + step1[30]);
+ step2[26] = WRAPLOW(-step1[26] + step1[29]);
+ step2[27] = WRAPLOW(-step1[27] + step1[28]);
+ step2[28] = WRAPLOW(step1[27] + step1[28]);
+ step2[29] = WRAPLOW(step1[26] + step1[29]);
+ step2[30] = WRAPLOW(step1[25] + step1[30]);
+ step2[31] = WRAPLOW(step1[24] + step1[31]);
+
+ // stage 7
+ step1[0] = WRAPLOW(step2[0] + step2[15]);
+ step1[1] = WRAPLOW(step2[1] + step2[14]);
+ step1[2] = WRAPLOW(step2[2] + step2[13]);
+ step1[3] = WRAPLOW(step2[3] + step2[12]);
+ step1[4] = WRAPLOW(step2[4] + step2[11]);
+ step1[5] = WRAPLOW(step2[5] + step2[10]);
+ step1[6] = WRAPLOW(step2[6] + step2[9]);
+ step1[7] = WRAPLOW(step2[7] + step2[8]);
+ step1[8] = WRAPLOW(step2[7] - step2[8]);
+ step1[9] = WRAPLOW(step2[6] - step2[9]);
+ step1[10] = WRAPLOW(step2[5] - step2[10]);
+ step1[11] = WRAPLOW(step2[4] - step2[11]);
+ step1[12] = WRAPLOW(step2[3] - step2[12]);
+ step1[13] = WRAPLOW(step2[2] - step2[13]);
+ step1[14] = WRAPLOW(step2[1] - step2[14]);
+ step1[15] = WRAPLOW(step2[0] - step2[15]);
+
+ step1[16] = step2[16];
+ step1[17] = step2[17];
+ step1[18] = step2[18];
+ step1[19] = step2[19];
+ temp1 = (-step2[20] + step2[27]) * cospi_16_64;
+ temp2 = (step2[20] + step2[27]) * cospi_16_64;
+ step1[20] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[27] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = (-step2[21] + step2[26]) * cospi_16_64;
+ temp2 = (step2[21] + step2[26]) * cospi_16_64;
+ step1[21] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[26] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = (-step2[22] + step2[25]) * cospi_16_64;
+ temp2 = (step2[22] + step2[25]) * cospi_16_64;
+ step1[22] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[25] = WRAPLOW(dct_const_round_shift(temp2));
+ temp1 = (-step2[23] + step2[24]) * cospi_16_64;
+ temp2 = (step2[23] + step2[24]) * cospi_16_64;
+ step1[23] = WRAPLOW(dct_const_round_shift(temp1));
+ step1[24] = WRAPLOW(dct_const_round_shift(temp2));
+ step1[28] = step2[28];
+ step1[29] = step2[29];
+ step1[30] = step2[30];
+ step1[31] = step2[31];
+
+ // final stage
+ output[0] = WRAPLOW(step1[0] + step1[31]);
+ output[1] = WRAPLOW(step1[1] + step1[30]);
+ output[2] = WRAPLOW(step1[2] + step1[29]);
+ output[3] = WRAPLOW(step1[3] + step1[28]);
+ output[4] = WRAPLOW(step1[4] + step1[27]);
+ output[5] = WRAPLOW(step1[5] + step1[26]);
+ output[6] = WRAPLOW(step1[6] + step1[25]);
+ output[7] = WRAPLOW(step1[7] + step1[24]);
+ output[8] = WRAPLOW(step1[8] + step1[23]);
+ output[9] = WRAPLOW(step1[9] + step1[22]);
+ output[10] = WRAPLOW(step1[10] + step1[21]);
+ output[11] = WRAPLOW(step1[11] + step1[20]);
+ output[12] = WRAPLOW(step1[12] + step1[19]);
+ output[13] = WRAPLOW(step1[13] + step1[18]);
+ output[14] = WRAPLOW(step1[14] + step1[17]);
+ output[15] = WRAPLOW(step1[15] + step1[16]);
+ output[16] = WRAPLOW(step1[15] - step1[16]);
+ output[17] = WRAPLOW(step1[14] - step1[17]);
+ output[18] = WRAPLOW(step1[13] - step1[18]);
+ output[19] = WRAPLOW(step1[12] - step1[19]);
+ output[20] = WRAPLOW(step1[11] - step1[20]);
+ output[21] = WRAPLOW(step1[10] - step1[21]);
+ output[22] = WRAPLOW(step1[9] - step1[22]);
+ output[23] = WRAPLOW(step1[8] - step1[23]);
+ output[24] = WRAPLOW(step1[7] - step1[24]);
+ output[25] = WRAPLOW(step1[6] - step1[25]);
+ output[26] = WRAPLOW(step1[5] - step1[26]);
+ output[27] = WRAPLOW(step1[4] - step1[27]);
+ output[28] = WRAPLOW(step1[3] - step1[28]);
+ output[29] = WRAPLOW(step1[2] - step1[29]);
+ output[30] = WRAPLOW(step1[1] - step1[30]);
+ output[31] = WRAPLOW(step1[0] - step1[31]);
+}
+
+void vp9_high_idct32x32_1024_add_c(const tran_low_t *input, uint8_t *dest8,
+ int stride, int bd) {
+ tran_low_t out[32 * 32];
+ tran_low_t *outptr = out;
+ int i, j;
+ tran_low_t temp_in[32], temp_out[32];
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+
+ // Rows
+ for (i = 0; i < 32; ++i) {
+ tran_low_t zero_coeff[16];
+ for (j = 0; j < 16; ++j)
+ zero_coeff[j] = input[2 * j] | input[2 * j + 1];
+ for (j = 0; j < 8; ++j)
+ zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
+ for (j = 0; j < 4; ++j)
+ zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
+ for (j = 0; j < 2; ++j)
+ zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
+
+ if (zero_coeff[0] | zero_coeff[1])
+ high_idct32(input, outptr, bd);
+ else
+ vpx_memset(outptr, 0, sizeof(tran_low_t) * 32);
+ input += 32;
+ outptr += 32;
+ }
+
+ // Columns
+ for (i = 0; i < 32; ++i) {
+ for (j = 0; j < 32; ++j)
+ temp_in[j] = out[j * 32 + i];
+ high_idct32(temp_in, temp_out, bd);
+ for (j = 0; j < 32; ++j)
+ dest[j * stride + i] = clip_pixel_bd_high(
+ dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd);
+ }
+}
+
+void vp9_high_idct32x32_34_add_c(const tran_low_t *input, uint8_t *dest8,
+ int stride, int bd) {
+ tran_low_t out[32 * 32] = {0};
+ tran_low_t *outptr = out;
+ int i, j;
+ tran_low_t temp_in[32], temp_out[32];
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+
+ // Rows
+ // Only upper-left 8x8 has non-zero coeff.
+ for (i = 0; i < 8; ++i) {
+ high_idct32(input, outptr, bd);
+ input += 32;
+ outptr += 32;
+ }
+ // Columns
+ for (i = 0; i < 32; ++i) {
+ for (j = 0; j < 32; ++j)
+ temp_in[j] = out[j * 32 + i];
+ high_idct32(temp_in, temp_out, bd);
+ for (j = 0; j < 32; ++j)
+ dest[j * stride + i] = clip_pixel_bd_high(
+ dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd);
+ }
+}
+
+void vp9_high_idct32x32_1_add_c(const tran_low_t *input, uint8_t *dest8,
+ int stride, int bd) {
+ int i, j;
+ int a1;
+ uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
+
+ tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64));
+ out = WRAPLOW(dct_const_round_shift(out * cospi_16_64));
+ a1 = ROUND_POWER_OF_TWO(out, 6);
+
+ for (j = 0; j < 32; ++j) {
+ for (i = 0; i < 32; ++i)
+ dest[i] = clip_pixel_bd_high(dest[i], a1, bd);
+ dest += stride;
+ }
+}
+
+// idct
+void vp9_high_idct4x4_add(const tran_low_t *input, uint8_t *dest, int stride,
+ int eob, int bd) {
+ if (eob > 1)
+ vp9_high_idct4x4_16_add(input, dest, stride, bd);
+ else
+ vp9_high_idct4x4_1_add(input, dest, stride, bd);
+}
+
+
+void vp9_high_iwht4x4_add(const tran_low_t *input, uint8_t *dest, int stride,
+ int eob, int bd) {
+ if (eob > 1)
+ vp9_high_iwht4x4_16_add(input, dest, stride, bd);
+ else
+ vp9_high_iwht4x4_1_add(input, dest, stride, bd);
+}
+
+void vp9_high_idct8x8_add(const tran_low_t *input, uint8_t *dest, int stride,
+ int eob, int bd) {
+ // If dc is 1, then input[0] is the reconstructed value, do not need
+ // dequantization. Also, when dc is 1, dc is counted in eobs, namely eobs >=1.
+
+ // The calculation can be simplified if there are not many non-zero dct
+ // coefficients. Use eobs to decide what to do.
+ // TODO(yunqingwang): "eobs = 1" case is also handled in vp9_short_idct8x8_c.
+ // Combine that with code here.
+ // DC only DCT coefficient
+ if (eob == 1) {
+ vp9_high_idct8x8_1_add(input, dest, stride, bd);
+ } else if (eob <= 10) {
+ vp9_high_idct8x8_10_add(input, dest, stride, bd);
+ } else {
+ vp9_high_idct8x8_64_add(input, dest, stride, bd);
+ }
+}
+
+void vp9_high_idct16x16_add(const tran_low_t *input, uint8_t *dest, int stride,
+ int eob, int bd) {
+ // The calculation can be simplified if there are not many non-zero dct
+ // coefficients. Use eobs to separate different cases.
+ // DC only DCT coefficient.
+ if (eob == 1) {
+ vp9_high_idct16x16_1_add(input, dest, stride, bd);
+ } else if (eob <= 10) {
+ vp9_high_idct16x16_10_add(input, dest, stride, bd);
+ } else {
+ vp9_high_idct16x16_256_add(input, dest, stride, bd);
+ }
+}
+
+void vp9_high_idct32x32_add(const tran_low_t *input, uint8_t *dest, int stride,
+ int eob, int bd) {
+ // Non-zero coeff only in upper-left 8x8
+ if (eob == 1) {
+ vp9_high_idct32x32_1_add(input, dest, stride, bd);
+ } else if (eob <= 34) {
+ vp9_high_idct32x32_34_add(input, dest, stride, bd);
+ } else {
+ vp9_high_idct32x32_1024_add(input, dest, stride, bd);
+ }
+}
+
+// iht
+void vp9_high_iht4x4_add(TX_TYPE tx_type, const tran_low_t *input,
+ uint8_t *dest, int stride, int eob, int bd) {
+ if (tx_type == DCT_DCT)
+ vp9_high_idct4x4_add(input, dest, stride, eob, bd);
+ else
+ vp9_high_iht4x4_16_add(input, dest, stride, tx_type, bd);
+}
+
+void vp9_high_iht8x8_add(TX_TYPE tx_type, const tran_low_t *input,
+ uint8_t *dest, int stride, int eob, int bd) {
+ if (tx_type == DCT_DCT) {
+ vp9_high_idct8x8_add(input, dest, stride, eob, bd);
+ } else {
+ vp9_high_iht8x8_64_add(input, dest, stride, tx_type, bd);
+ }
+}
+
+void vp9_high_iht16x16_add(TX_TYPE tx_type, const tran_low_t *input,
+ uint8_t *dest, int stride, int eob, int bd) {
+ if (tx_type == DCT_DCT) {
+ vp9_high_idct16x16_add(input, dest, stride, eob, bd);
+ } else {
+ vp9_high_iht16x16_256_add(input, dest, stride, tx_type, bd);
+ }
+}
+#endif // CONFIG_VP9_HIGHBITDEPTH
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