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- /*
- * Copyright (C) 2004 the ffmpeg project
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
- /**
- * @file vp3dsp_mmx.c
- * MMX-optimized functions cribbed from the original VP3 source code.
- */
-
- #include "../dsputil.h"
- #include "mmx.h"
-
- #define IdctAdjustBeforeShift 8
-
- /* (12 * 4) 2-byte memory locations ( = 96 bytes total)
- * idct_constants[0..15] = Mask table (M(I))
- * idct_constants[16..43] = Cosine table (C(I))
- * idct_constants[44..47] = 8
- */
- static uint16_t idct_constants[(4 + 7 + 1) * 4];
- static uint16_t idct_cosine_table[7] = {
- 64277, 60547, 54491, 46341, 36410, 25080, 12785
- };
-
- #define r0 mm0
- #define r1 mm1
- #define r2 mm2
- #define r3 mm3
- #define r4 mm4
- #define r5 mm5
- #define r6 mm6
- #define r7 mm7
-
- /* from original comments: The Macro does IDct on 4 1-D Dcts */
- #define BeginIDCT() { \
- movq_m2r(*I(3), r2); \
- movq_m2r(*C(3), r6); \
- movq_r2r(r2, r4); \
- movq_m2r(*J(5), r7); \
- pmulhw_r2r(r6, r4); /* r4 = c3*i3 - i3 */ \
- movq_m2r(*C(5), r1); \
- pmulhw_r2r(r7, r6); /* r6 = c3*i5 - i5 */ \
- movq_r2r(r1, r5); \
- pmulhw_r2r(r2, r1); /* r1 = c5*i3 - i3 */ \
- movq_m2r(*I(1), r3); \
- pmulhw_r2r(r7, r5); /* r5 = c5*i5 - i5 */ \
- movq_m2r(*C(1), r0); /* (all registers are in use) */ \
- paddw_r2r(r2, r4); /* r4 = c3*i3 */ \
- paddw_r2r(r7, r6); /* r6 = c3*i5 */ \
- paddw_r2r(r1, r2); /* r2 = c5*i3 */ \
- movq_m2r(*J(7), r1); \
- paddw_r2r(r5, r7); /* r7 = c5*i5 */ \
- movq_r2r(r0, r5); /* r5 = c1 */ \
- pmulhw_r2r(r3, r0); /* r0 = c1*i1 - i1 */ \
- paddsw_r2r(r7, r4); /* r4 = C = c3*i3 + c5*i5 */ \
- pmulhw_r2r(r1, r5); /* r5 = c1*i7 - i7 */ \
- movq_m2r(*C(7), r7); \
- psubsw_r2r(r2, r6); /* r6 = D = c3*i5 - c5*i3 */ \
- paddw_r2r(r3, r0); /* r0 = c1*i1 */ \
- pmulhw_r2r(r7, r3); /* r3 = c7*i1 */ \
- movq_m2r(*I(2), r2); \
- pmulhw_r2r(r1, r7); /* r7 = c7*i7 */ \
- paddw_r2r(r1, r5); /* r5 = c1*i7 */ \
- movq_r2r(r2, r1); /* r1 = i2 */ \
- pmulhw_m2r(*C(2), r2); /* r2 = c2*i2 - i2 */ \
- psubsw_r2r(r5, r3); /* r3 = B = c7*i1 - c1*i7 */ \
- movq_m2r(*J(6), r5); \
- paddsw_r2r(r7, r0); /* r0 = A = c1*i1 + c7*i7 */ \
- movq_r2r(r5, r7); /* r7 = i6 */ \
- psubsw_r2r(r4, r0); /* r0 = A - C */ \
- pmulhw_m2r(*C(2), r5); /* r5 = c2*i6 - i6 */ \
- paddw_r2r(r1, r2); /* r2 = c2*i2 */ \
- pmulhw_m2r(*C(6), r1); /* r1 = c6*i2 */ \
- paddsw_r2r(r4, r4); /* r4 = C + C */ \
- paddsw_r2r(r0, r4); /* r4 = C. = A + C */ \
- psubsw_r2r(r6, r3); /* r3 = B - D */ \
- paddw_r2r(r7, r5); /* r5 = c2*i6 */ \
- paddsw_r2r(r6, r6); /* r6 = D + D */ \
- pmulhw_m2r(*C(6), r7); /* r7 = c6*i6 */ \
- paddsw_r2r(r3, r6); /* r6 = D. = B + D */ \
- movq_r2m(r4, *I(1)); /* save C. at I(1) */ \
- psubsw_r2r(r5, r1); /* r1 = H = c6*i2 - c2*i6 */ \
- movq_m2r(*C(4), r4); \
- movq_r2r(r3, r5); /* r5 = B - D */ \
- pmulhw_r2r(r4, r3); /* r3 = (c4 - 1) * (B - D) */ \
- paddsw_r2r(r2, r7); /* r7 = G = c6*i6 + c2*i2 */ \
- movq_r2m(r6, *I(2)); /* save D. at I(2) */ \
- movq_r2r(r0, r2); /* r2 = A - C */ \
- movq_m2r(*I(0), r6); \
- pmulhw_r2r(r4, r0); /* r0 = (c4 - 1) * (A - C) */ \
- paddw_r2r(r3, r5); /* r5 = B. = c4 * (B - D) */ \
- movq_m2r(*J(4), r3); \
- psubsw_r2r(r1, r5); /* r5 = B.. = B. - H */ \
- paddw_r2r(r0, r2); /* r0 = A. = c4 * (A - C) */ \
- psubsw_r2r(r3, r6); /* r6 = i0 - i4 */ \
- movq_r2r(r6, r0); \
- pmulhw_r2r(r4, r6); /* r6 = (c4 - 1) * (i0 - i4) */ \
- paddsw_r2r(r3, r3); /* r3 = i4 + i4 */ \
- paddsw_r2r(r1, r1); /* r1 = H + H */ \
- paddsw_r2r(r0, r3); /* r3 = i0 + i4 */ \
- paddsw_r2r(r5, r1); /* r1 = H. = B + H */ \
- pmulhw_r2r(r3, r4); /* r4 = (c4 - 1) * (i0 + i4) */ \
- paddsw_r2r(r0, r6); /* r6 = F = c4 * (i0 - i4) */ \
- psubsw_r2r(r2, r6); /* r6 = F. = F - A. */ \
- paddsw_r2r(r2, r2); /* r2 = A. + A. */ \
- movq_m2r(*I(1), r0); /* r0 = C. */ \
- paddsw_r2r(r6, r2); /* r2 = A.. = F + A. */ \
- paddw_r2r(r3, r4); /* r4 = E = c4 * (i0 + i4) */ \
- psubsw_r2r(r1, r2); /* r2 = R2 = A.. - H. */ \
- }
-
- /* RowIDCT gets ready to transpose */
- #define RowIDCT() { \
- \
- BeginIDCT(); \
- \
- movq_m2r(*I(2), r3); /* r3 = D. */ \
- psubsw_r2r(r7, r4); /* r4 = E. = E - G */ \
- paddsw_r2r(r1, r1); /* r1 = H. + H. */ \
- paddsw_r2r(r7, r7); /* r7 = G + G */ \
- paddsw_r2r(r2, r1); /* r1 = R1 = A.. + H. */ \
- paddsw_r2r(r4, r7); /* r7 = G. = E + G */ \
- psubsw_r2r(r3, r4); /* r4 = R4 = E. - D. */ \
- paddsw_r2r(r3, r3); \
- psubsw_r2r(r5, r6); /* r6 = R6 = F. - B.. */ \
- paddsw_r2r(r5, r5); \
- paddsw_r2r(r4, r3); /* r3 = R3 = E. + D. */ \
- paddsw_r2r(r6, r5); /* r5 = R5 = F. + B.. */ \
- psubsw_r2r(r0, r7); /* r7 = R7 = G. - C. */ \
- paddsw_r2r(r0, r0); \
- movq_r2m(r1, *I(1)); /* save R1 */ \
- paddsw_r2r(r7, r0); /* r0 = R0 = G. + C. */ \
- }
-
- /* Column IDCT normalizes and stores final results */
- #define ColumnIDCT() { \
- \
- BeginIDCT(); \
- \
- paddsw_m2r(*Eight, r2); /* adjust R2 (and R1) for shift */ \
- paddsw_r2r(r1, r1); /* r1 = H. + H. */ \
- paddsw_r2r(r2, r1); /* r1 = R1 = A.. + H. */ \
- psraw_i2r(4, r2); /* r2 = NR2 */ \
- psubsw_r2r(r7, r4); /* r4 = E. = E - G */ \
- psraw_i2r(4, r1); /* r1 = NR1 */ \
- movq_m2r(*I(2), r3); /* r3 = D. */ \
- paddsw_r2r(r7, r7); /* r7 = G + G */ \
- movq_r2m(r2, *I(2)); /* store NR2 at I2 */ \
- paddsw_r2r(r4, r7); /* r7 = G. = E + G */ \
- movq_r2m(r1, *I(1)); /* store NR1 at I1 */ \
- psubsw_r2r(r3, r4); /* r4 = R4 = E. - D. */ \
- paddsw_m2r(*Eight, r4); /* adjust R4 (and R3) for shift */ \
- paddsw_r2r(r3, r3); /* r3 = D. + D. */ \
- paddsw_r2r(r4, r3); /* r3 = R3 = E. + D. */ \
- psraw_i2r(4, r4); /* r4 = NR4 */ \
- psubsw_r2r(r5, r6); /* r6 = R6 = F. - B.. */ \
- psraw_i2r(4, r3); /* r3 = NR3 */ \
- paddsw_m2r(*Eight, r6); /* adjust R6 (and R5) for shift */ \
- paddsw_r2r(r5, r5); /* r5 = B.. + B.. */ \
- paddsw_r2r(r6, r5); /* r5 = R5 = F. + B.. */ \
- psraw_i2r(4, r6); /* r6 = NR6 */ \
- movq_r2m(r4, *J(4)); /* store NR4 at J4 */ \
- psraw_i2r(4, r5); /* r5 = NR5 */ \
- movq_r2m(r3, *I(3)); /* store NR3 at I3 */ \
- psubsw_r2r(r0, r7); /* r7 = R7 = G. - C. */ \
- paddsw_m2r(*Eight, r7); /* adjust R7 (and R0) for shift */ \
- paddsw_r2r(r0, r0); /* r0 = C. + C. */ \
- paddsw_r2r(r7, r0); /* r0 = R0 = G. + C. */ \
- psraw_i2r(4, r7); /* r7 = NR7 */ \
- movq_r2m(r6, *J(6)); /* store NR6 at J6 */ \
- psraw_i2r(4, r0); /* r0 = NR0 */ \
- movq_r2m(r5, *J(5)); /* store NR5 at J5 */ \
- movq_r2m(r7, *J(7)); /* store NR7 at J7 */ \
- movq_r2m(r0, *I(0)); /* store NR0 at I0 */ \
- }
-
- /* Following macro does two 4x4 transposes in place.
-
- At entry (we assume):
-
- r0 = a3 a2 a1 a0
- I(1) = b3 b2 b1 b0
- r2 = c3 c2 c1 c0
- r3 = d3 d2 d1 d0
-
- r4 = e3 e2 e1 e0
- r5 = f3 f2 f1 f0
- r6 = g3 g2 g1 g0
- r7 = h3 h2 h1 h0
-
- At exit, we have:
-
- I(0) = d0 c0 b0 a0
- I(1) = d1 c1 b1 a1
- I(2) = d2 c2 b2 a2
- I(3) = d3 c3 b3 a3
-
- J(4) = h0 g0 f0 e0
- J(5) = h1 g1 f1 e1
- J(6) = h2 g2 f2 e2
- J(7) = h3 g3 f3 e3
-
- I(0) I(1) I(2) I(3) is the transpose of r0 I(1) r2 r3.
- J(4) J(5) J(6) J(7) is the transpose of r4 r5 r6 r7.
-
- Since r1 is free at entry, we calculate the Js first. */
-
- #define Transpose() { \
- movq_r2r(r4, r1); /* r1 = e3 e2 e1 e0 */ \
- punpcklwd_r2r(r5, r4); /* r4 = f1 e1 f0 e0 */ \
- movq_r2m(r0, *I(0)); /* save a3 a2 a1 a0 */ \
- punpckhwd_r2r(r5, r1); /* r1 = f3 e3 f2 e2 */ \
- movq_r2r(r6, r0); /* r0 = g3 g2 g1 g0 */ \
- punpcklwd_r2r(r7, r6); /* r6 = h1 g1 h0 g0 */ \
- movq_r2r(r4, r5); /* r5 = f1 e1 f0 e0 */ \
- punpckldq_r2r(r6, r4); /* r4 = h0 g0 f0 e0 = R4 */ \
- punpckhdq_r2r(r6, r5); /* r5 = h1 g1 f1 e1 = R5 */ \
- movq_r2r(r1, r6); /* r6 = f3 e3 f2 e2 */ \
- movq_r2m(r4, *J(4)); \
- punpckhwd_r2r(r7, r0); /* r0 = h3 g3 h2 g2 */ \
- movq_r2m(r5, *J(5)); \
- punpckhdq_r2r(r0, r6); /* r6 = h3 g3 f3 e3 = R7 */ \
- movq_m2r(*I(0), r4); /* r4 = a3 a2 a1 a0 */ \
- punpckldq_r2r(r0, r1); /* r1 = h2 g2 f2 e2 = R6 */ \
- movq_m2r(*I(1), r5); /* r5 = b3 b2 b1 b0 */ \
- movq_r2r(r4, r0); /* r0 = a3 a2 a1 a0 */ \
- movq_r2m(r6, *J(7)); \
- punpcklwd_r2r(r5, r0); /* r0 = b1 a1 b0 a0 */ \
- movq_r2m(r1, *J(6)); \
- punpckhwd_r2r(r5, r4); /* r4 = b3 a3 b2 a2 */ \
- movq_r2r(r2, r5); /* r5 = c3 c2 c1 c0 */ \
- punpcklwd_r2r(r3, r2); /* r2 = d1 c1 d0 c0 */ \
- movq_r2r(r0, r1); /* r1 = b1 a1 b0 a0 */ \
- punpckldq_r2r(r2, r0); /* r0 = d0 c0 b0 a0 = R0 */ \
- punpckhdq_r2r(r2, r1); /* r1 = d1 c1 b1 a1 = R1 */ \
- movq_r2r(r4, r2); /* r2 = b3 a3 b2 a2 */ \
- movq_r2m(r0, *I(0)); \
- punpckhwd_r2r(r3, r5); /* r5 = d3 c3 d2 c2 */ \
- movq_r2m(r1, *I(1)); \
- punpckhdq_r2r(r5, r4); /* r4 = d3 c3 b3 a3 = R3 */ \
- punpckldq_r2r(r5, r2); /* r2 = d2 c2 b2 a2 = R2 */ \
- movq_r2m(r4, *I(3)); \
- movq_r2m(r2, *I(2)); \
- }
-
- void vp3_dsp_init_mmx(void)
- {
- int j = 16;
- uint16_t *p;
-
- do {
- idct_constants[--j] = 0;
- } while (j);
-
- idct_constants[0] = idct_constants[5] =
- idct_constants[10] = idct_constants[15] = 65535;
-
- j = 1;
- do {
- p = idct_constants + ((j + 3) << 2);
- p[0] = p[1] = p[2] = p[3] = idct_cosine_table[j - 1];
- } while (++j <= 7);
-
- idct_constants[44] = idct_constants[45] =
- idct_constants[46] = idct_constants[47] = IdctAdjustBeforeShift;
- }
-
- void vp3_idct_mmx(int16_t *input_data, int16_t *dequant_matrix,
- int coeff_count, int16_t *output_data)
- {
- /* eax = quantized input
- * ebx = dequantizer matrix
- * ecx = IDCT constants
- * M(I) = ecx + MaskOffset(0) + I * 8
- * C(I) = ecx + CosineOffset(32) + (I-1) * 8
- * edx = output
- * r0..r7 = mm0..mm7
- */
-
- #define M(x) (idct_constants + x * 4)
- #define C(x) (idct_constants + 16 + (x - 1) * 4)
- #define Eight (idct_constants + 44)
-
- unsigned char *input_bytes = (unsigned char *)input_data;
- unsigned char *dequant_matrix_bytes = (unsigned char *)dequant_matrix;
- unsigned char *output_data_bytes = (unsigned char *)output_data;
-
- movq_m2r(*(input_bytes), r0);
- pmullw_m2r(*(dequant_matrix_bytes), r0); /* r0 = 03 02 01 00 */
- movq_m2r(*(input_bytes+16), r1);
- pmullw_m2r(*(dequant_matrix_bytes+16), r1); /* r1 = 13 12 11 10 */
- movq_m2r(*M(0), r2); /* r2 = __ __ __ FF */
- movq_r2r(r0, r3); /* r3 = 03 02 01 00 */
- movq_m2r(*(input_bytes+8), r4);
- psrlq_i2r(16, r0); /* r0 = __ 03 02 01 */
- pmullw_m2r(*(dequant_matrix_bytes+8), r4); /* r4 = 07 06 05 04 */
- pand_r2r(r2, r3); /* r3 = __ __ __ 00 */
- movq_r2r(r0, r5); /* r5 = __ 03 02 01 */
- movq_r2r(r1, r6); /* r6 = 13 12 11 10 */
- pand_r2r(r2, r5); /* r5 = __ __ __ 01 */
- psllq_i2r(32, r6); /* r6 = 11 10 __ __ */
- movq_m2r(*M(3), r7); /* r7 = FF __ __ __ */
- pxor_r2r(r5, r0); /* r0 = __ 03 02 __ */
- pand_r2r(r6, r7); /* r7 = 11 __ __ __ */
- por_r2r(r3, r0); /* r0 = __ 03 02 00 */
- pxor_r2r(r7, r6); /* r6 = __ 10 __ __ */
- por_r2r(r7, r0); /* r0 = 11 03 02 00 = R0 */
- movq_m2r(*M(3), r7); /* r7 = FF __ __ __ */
- movq_r2r(r4, r3); /* r3 = 07 06 05 04 */
- movq_r2m(r0, *(output_data_bytes)); /* write R0 = r0 */
- pand_r2r(r2, r3); /* r3 = __ __ __ 04 */
- movq_m2r(*(input_bytes+32), r0);
- psllq_i2r(16, r3); /* r3 = __ __ 04 __ */
- pmullw_m2r(*(dequant_matrix_bytes+32), r0); /* r0 = 23 22 21 20 */
- pand_r2r(r1, r7); /* r7 = 13 __ __ __ */
- por_r2r(r3, r5); /* r5 = __ __ 04 01 */
- por_r2r(r6, r7); /* r7 = 13 10 __ __ */
- movq_m2r(*(input_bytes+24), r3);
- por_r2r(r5, r7); /* r7 = 13 10 04 01 = R1 */
- pmullw_m2r(*(dequant_matrix_bytes+24), r3); /* r3 = 17 16 15 14 */
- psrlq_i2r(16, r4); /* r4 = __ 07 06 05 */
- movq_r2m(r7, *(output_data_bytes+16)); /* write R1 = r7 */
- movq_r2r(r4, r5); /* r5 = __ 07 06 05 */
- movq_r2r(r0, r7); /* r7 = 23 22 21 20 */
- psrlq_i2r(16, r4); /* r4 = __ __ 07 06 */
- psrlq_i2r(48, r7); /* r7 = __ __ __ 23 */
- movq_r2r(r2, r6); /* r6 = __ __ __ FF */
- pand_r2r(r2, r5); /* r5 = __ __ __ 05 */
- pand_r2r(r4, r6); /* r6 = __ __ __ 06 */
- movq_r2m(r7, *(output_data_bytes+80)); /* partial R9 = __ __ __ 23 */
- pxor_r2r(r6, r4); /* r4 = __ __ 07 __ */
- psrlq_i2r(32, r1); /* r1 = __ __ 13 12 */
- por_r2r(r5, r4); /* r4 = __ __ 07 05 */
- movq_m2r(*M(3), r7); /* r7 = FF __ __ __ */
- pand_r2r(r2, r1); /* r1 = __ __ __ 12 */
- movq_m2r(*(input_bytes+48), r5);
- psllq_i2r(16, r0); /* r0 = 22 21 20 __ */
- pmullw_m2r(*(dequant_matrix_bytes+48), r5); /* r5 = 33 32 31 30 */
- pand_r2r(r0, r7); /* r7 = 22 __ __ __ */
- movq_r2m(r1, *(output_data_bytes+64)); /* partial R8 = __ __ __ 12 */
- por_r2r(r4, r7); /* r7 = 22 __ 07 05 */
- movq_r2r(r3, r4); /* r4 = 17 16 15 14 */
- pand_r2r(r2, r3); /* r3 = __ __ __ 14 */
- movq_m2r(*M(2), r1); /* r1 = __ FF __ __ */
- psllq_i2r(32, r3); /* r3 = __ 14 __ __ */
- por_r2r(r3, r7); /* r7 = 22 14 07 05 = R2 */
- movq_r2r(r5, r3); /* r3 = 33 32 31 30 */
- psllq_i2r(48, r3); /* r3 = 30 __ __ __ */
- pand_r2r(r0, r1); /* r1 = __ 21 __ __ */
- movq_r2m(r7, *(output_data_bytes+32)); /* write R2 = r7 */
- por_r2r(r3, r6); /* r6 = 30 __ __ 06 */
- movq_m2r(*M(1), r7); /* r7 = __ __ FF __ */
- por_r2r(r1, r6); /* r6 = 30 21 __ 06 */
- movq_m2r(*(input_bytes+56), r1);
- pand_r2r(r4, r7); /* r7 = __ __ 15 __ */
- pmullw_m2r(*(dequant_matrix_bytes+56), r1); /* r1 = 37 36 35 34 */
- por_r2r(r6, r7); /* r7 = 30 21 15 06 = R3 */
- pand_m2r(*M(1), r0); /* r0 = __ __ 20 __ */
- psrlq_i2r(32, r4); /* r4 = __ __ 17 16 */
- movq_r2m(r7, *(output_data_bytes+48)); /* write R3 = r7 */
- movq_r2r(r4, r6); /* r6 = __ __ 17 16 */
- movq_m2r(*M(3), r7); /* r7 = FF __ __ __ */
- pand_r2r(r2, r4); /* r4 = __ __ __ 16 */
- movq_m2r(*M(1), r3); /* r3 = __ __ FF __ */
- pand_r2r(r1, r7); /* r7 = 37 __ __ __ */
- pand_r2r(r5, r3); /* r3 = __ __ 31 __ */
- por_r2r(r4, r0); /* r0 = __ __ 20 16 */
- psllq_i2r(16, r3); /* r3 = __ 31 __ __ */
- por_r2r(r0, r7); /* r7 = 37 __ 20 16 */
- movq_m2r(*M(2), r4); /* r4 = __ FF __ __ */
- por_r2r(r3, r7); /* r7 = 37 31 20 16 = R4 */
- movq_m2r(*(input_bytes+80), r0);
- movq_r2r(r4, r3); /* r3 = __ __ FF __ */
- pmullw_m2r(*(dequant_matrix_bytes+80), r0); /* r0 = 53 52 51 50 */
- pand_r2r(r5, r4); /* r4 = __ 32 __ __ */
- movq_r2m(r7, *(output_data_bytes+8)); /* write R4 = r7 */
- por_r2r(r4, r6); /* r6 = __ 32 17 16 */
- movq_r2r(r3, r4); /* r4 = __ FF __ __ */
- psrlq_i2r(16, r6); /* r6 = __ __ 32 17 */
- movq_r2r(r0, r7); /* r7 = 53 52 51 50 */
- pand_r2r(r1, r4); /* r4 = __ 36 __ __ */
- psllq_i2r(48, r7); /* r7 = 50 __ __ __ */
- por_r2r(r4, r6); /* r6 = __ 36 32 17 */
- movq_m2r(*(input_bytes+88), r4);
- por_r2r(r6, r7); /* r7 = 50 36 32 17 = R5 */
- pmullw_m2r(*(dequant_matrix_bytes+88), r4); /* r4 = 57 56 55 54 */
- psrlq_i2r(16, r3); /* r3 = __ __ FF __ */
- movq_r2m(r7, *(output_data_bytes+24)); /* write R5 = r7 */
- pand_r2r(r1, r3); /* r3 = __ __ 35 __ */
- psrlq_i2r(48, r5); /* r5 = __ __ __ 33 */
- pand_r2r(r2, r1); /* r1 = __ __ __ 34 */
- movq_m2r(*(input_bytes+104), r6);
- por_r2r(r3, r5); /* r5 = __ __ 35 33 */
- pmullw_m2r(*(dequant_matrix_bytes+104), r6); /* r6 = 67 66 65 64 */
- psrlq_i2r(16, r0); /* r0 = __ 53 52 51 */
- movq_r2r(r4, r7); /* r7 = 57 56 55 54 */
- movq_r2r(r2, r3); /* r3 = __ __ __ FF */
- psllq_i2r(48, r7); /* r7 = 54 __ __ __ */
- pand_r2r(r0, r3); /* r3 = __ __ __ 51 */
- pxor_r2r(r3, r0); /* r0 = __ 53 52 __ */
- psllq_i2r(32, r3); /* r3 = __ 51 __ __ */
- por_r2r(r5, r7); /* r7 = 54 __ 35 33 */
- movq_r2r(r6, r5); /* r5 = 67 66 65 64 */
- pand_m2r(*M(1), r6); /* r6 = __ __ 65 __ */
- por_r2r(r3, r7); /* r7 = 54 51 35 33 = R6 */
- psllq_i2r(32, r6); /* r6 = 65 __ __ __ */
- por_r2r(r1, r0); /* r0 = __ 53 52 34 */
- movq_r2m(r7, *(output_data_bytes+40)); /* write R6 = r7 */
- por_r2r(r6, r0); /* r0 = 65 53 52 34 = R7 */
- movq_m2r(*(input_bytes+120), r7);
- movq_r2r(r5, r6); /* r6 = 67 66 65 64 */
- pmullw_m2r(*(dequant_matrix_bytes+120), r7); /* r7 = 77 76 75 74 */
- psrlq_i2r(32, r5); /* r5 = __ __ 67 66 */
- pand_r2r(r2, r6); /* r6 = __ __ __ 64 */
- movq_r2r(r5, r1); /* r1 = __ __ 67 66 */
- movq_r2m(r0, *(output_data_bytes+56)); /* write R7 = r0 */
- pand_r2r(r2, r1); /* r1 = __ __ __ 66 */
- movq_m2r(*(input_bytes+112), r0);
- movq_r2r(r7, r3); /* r3 = 77 76 75 74 */
- pmullw_m2r(*(dequant_matrix_bytes+112), r0); /* r0 = 73 72 71 70 */
- psllq_i2r(16, r3); /* r3 = 76 75 74 __ */
- pand_m2r(*M(3), r7); /* r7 = 77 __ __ __ */
- pxor_r2r(r1, r5); /* r5 = __ __ 67 __ */
- por_r2r(r5, r6); /* r6 = __ __ 67 64 */
- movq_r2r(r3, r5); /* r5 = 76 75 74 __ */
- pand_m2r(*M(3), r5); /* r5 = 76 __ __ __ */
- por_r2r(r1, r7); /* r7 = 77 __ __ 66 */
- movq_m2r(*(input_bytes+96), r1);
- pxor_r2r(r5, r3); /* r3 = __ 75 74 __ */
- pmullw_m2r(*(dequant_matrix_bytes+96), r1); /* r1 = 63 62 61 60 */
- por_r2r(r3, r7); /* r7 = 77 75 74 66 = R15 */
- por_r2r(r5, r6); /* r6 = 76 __ 67 64 */
- movq_r2r(r0, r5); /* r5 = 73 72 71 70 */
- movq_r2m(r7, *(output_data_bytes+120)); /* store R15 = r7 */
- psrlq_i2r(16, r5); /* r5 = __ 73 72 71 */
- pand_m2r(*M(2), r5); /* r5 = __ 73 __ __ */
- movq_r2r(r0, r7); /* r7 = 73 72 71 70 */
- por_r2r(r5, r6); /* r6 = 76 73 67 64 = R14 */
- pand_r2r(r2, r0); /* r0 = __ __ __ 70 */
- pxor_r2r(r0, r7); /* r7 = 73 72 71 __ */
- psllq_i2r(32, r0); /* r0 = __ 70 __ __ */
- movq_r2m(r6, *(output_data_bytes+104)); /* write R14 = r6 */
- psrlq_i2r(16, r4); /* r4 = __ 57 56 55 */
- movq_m2r(*(input_bytes+72), r5);
- psllq_i2r(16, r7); /* r7 = 72 71 __ __ */
- pmullw_m2r(*(dequant_matrix_bytes+72), r5); /* r5 = 47 46 45 44 */
- movq_r2r(r7, r6); /* r6 = 72 71 __ __ */
- movq_m2r(*M(2), r3); /* r3 = __ FF __ __ */
- psllq_i2r(16, r6); /* r6 = 71 __ __ __ */
- pand_m2r(*M(3), r7); /* r7 = 72 __ __ __ */
- pand_r2r(r1, r3); /* r3 = __ 62 __ __ */
- por_r2r(r0, r7); /* r7 = 72 70 __ __ */
- movq_r2r(r1, r0); /* r0 = 63 62 61 60 */
- pand_m2r(*M(3), r1); /* r1 = 63 __ __ __ */
- por_r2r(r3, r6); /* r6 = 71 62 __ __ */
- movq_r2r(r4, r3); /* r3 = __ 57 56 55 */
- psrlq_i2r(32, r1); /* r1 = __ __ 63 __ */
- pand_r2r(r2, r3); /* r3 = __ __ __ 55 */
- por_r2r(r1, r7); /* r7 = 72 70 63 __ */
- por_r2r(r3, r7); /* r7 = 72 70 63 55 = R13 */
- movq_r2r(r4, r3); /* r3 = __ 57 56 55 */
- pand_m2r(*M(1), r3); /* r3 = __ __ 56 __ */
- movq_r2r(r5, r1); /* r1 = 47 46 45 44 */
- movq_r2m(r7, *(output_data_bytes+88)); /* write R13 = r7 */
- psrlq_i2r(48, r5); /* r5 = __ __ __ 47 */
- movq_m2r(*(input_bytes+64), r7);
- por_r2r(r3, r6); /* r6 = 71 62 56 __ */
- pmullw_m2r(*(dequant_matrix_bytes+64), r7); /* r7 = 43 42 41 40 */
- por_r2r(r5, r6); /* r6 = 71 62 56 47 = R12 */
- pand_m2r(*M(2), r4); /* r4 = __ 57 __ __ */
- psllq_i2r(32, r0); /* r0 = 61 60 __ __ */
- movq_r2m(r6, *(output_data_bytes+72)); /* write R12 = r6 */
- movq_r2r(r0, r6); /* r6 = 61 60 __ __ */
- pand_m2r(*M(3), r0); /* r0 = 61 __ __ __ */
- psllq_i2r(16, r6); /* r6 = 60 __ __ __ */
- movq_m2r(*(input_bytes+40), r5);
- movq_r2r(r1, r3); /* r3 = 47 46 45 44 */
- pmullw_m2r(*(dequant_matrix_bytes+40), r5); /* r5 = 27 26 25 24 */
- psrlq_i2r(16, r1); /* r1 = __ 47 46 45 */
- pand_m2r(*M(1), r1); /* r1 = __ __ 46 __ */
- por_r2r(r4, r0); /* r0 = 61 57 __ __ */
- pand_r2r(r7, r2); /* r2 = __ __ __ 40 */
- por_r2r(r1, r0); /* r0 = 61 57 46 __ */
- por_r2r(r2, r0); /* r0 = 61 57 46 40 = R11 */
- psllq_i2r(16, r3); /* r3 = 46 45 44 __ */
- movq_r2r(r3, r4); /* r4 = 46 45 44 __ */
- movq_r2r(r5, r2); /* r2 = 27 26 25 24 */
- movq_r2m(r0, *(output_data_bytes+112)); /* write R11 = r0 */
- psrlq_i2r(48, r2); /* r2 = __ __ __ 27 */
- pand_m2r(*M(2), r4); /* r4 = __ 45 __ __ */
- por_r2r(r2, r6); /* r6 = 60 __ __ 27 */
- movq_m2r(*M(1), r2); /* r2 = __ __ FF __ */
- por_r2r(r4, r6); /* r6 = 60 45 __ 27 */
- pand_r2r(r7, r2); /* r2 = __ __ 41 __ */
- psllq_i2r(32, r3); /* r3 = 44 __ __ __ */
- por_m2r(*(output_data_bytes+80), r3); /* r3 = 44 __ __ 23 */
- por_r2r(r2, r6); /* r6 = 60 45 41 27 = R10 */
- movq_m2r(*M(3), r2); /* r2 = FF __ __ __ */
- psllq_i2r(16, r5); /* r5 = 26 25 24 __ */
- movq_r2m(r6, *(output_data_bytes+96)); /* store R10 = r6 */
- pand_r2r(r5, r2); /* r2 = 26 __ __ __ */
- movq_m2r(*M(2), r6); /* r6 = __ FF __ __ */
- pxor_r2r(r2, r5); /* r5 = __ 25 24 __ */
- pand_r2r(r7, r6); /* r6 = __ 42 __ __ */
- psrlq_i2r(32, r2); /* r2 = __ __ 26 __ */
- pand_m2r(*M(3), r7); /* r7 = 43 __ __ __ */
- por_r2r(r2, r3); /* r3 = 44 __ 26 23 */
- por_m2r(*(output_data_bytes+64), r7); /* r7 = 43 __ __ 12 */
- por_r2r(r3, r6); /* r6 = 44 42 26 23 = R9 */
- por_r2r(r5, r7); /* r7 = 43 25 24 12 = R8 */
- movq_r2m(r6, *(output_data_bytes+80)); /* store R9 = r6 */
- movq_r2m(r7, *(output_data_bytes+64)); /* store R8 = r7 */
-
-
- #undef M
-
- /* at this point, function has completed dequantization + dezigzag +
- * partial transposition; now do the idct itself */
-
- #define I(K) (output_data + K * 8)
- #define J(K) (output_data + ((K - 4) * 8) + 4)
-
- RowIDCT();
- Transpose();
-
- #undef I
- #undef J
- #define I(K) (output_data + (K * 8) + 32)
- #define J(K) (output_data + ((K - 4) * 8) + 36)
-
- RowIDCT();
- Transpose();
-
- #undef I
- #undef J
- #define I(K) (output_data + K * 8)
- #define J(K) (output_data + K * 8)
-
- ColumnIDCT();
-
- #undef I
- #undef J
- #define I(K) (output_data + (K * 8) + 4)
- #define J(K) (output_data + (K * 8) + 4)
-
- ColumnIDCT();
-
- #undef I
- #undef J
-
- }
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