| /* |
| * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| |
| #include "vpx_ports/config.h" |
| #include "dequantize.h" |
| #include "idct.h" |
| #include "vpx_mem/vpx_mem.h" |
| |
| DECLARE_ALIGNED(8, const unsigned char, cma[512]) = { |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, |
| 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, |
| 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, |
| 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, |
| 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, |
| 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, |
| 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, |
| 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, |
| 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, |
| 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, |
| 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, |
| 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, |
| 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, |
| 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, |
| 250, 251, 252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, |
| 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, |
| 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, |
| 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, |
| 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, |
| 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, |
| 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, |
| 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 |
| }; |
| |
| extern void vp8_short_idct4x4llm_mips(short *input, short *output, int pitch) ; |
| extern void vp8_short_idct4x4llm_1_mips(short *input, short *output, int pitch); |
| |
| |
| void vp8_dequant_idct_add_mips(short *input, short *dq, unsigned char *pred, |
| unsigned char *dest, int pitch, int stride) |
| { |
| short output[16]; |
| short *diff_ptr = output; |
| int i; |
| short a1, a2, a3, a0; |
| |
| short input_temp[16]; |
| unsigned int in1, dq1, x1, in2, dq2; |
| const unsigned char *cm = &(cma[128]); |
| |
| __asm__ __volatile__ ( |
| "lh %[in1], 0(%[input]) \n\t" |
| "lh %[dq1], 0(%[dq]) \n\t" |
| "lh %[in2], 2(%[input]) \n\t" |
| "lh %[dq2], 2(%[dq]) \n\t" |
| "append %[in1], %[in2], 16 \n\t" |
| "append %[dq1], %[dq2], 16 \n\t" |
| "mul.ph %[x1], %[dq1], %[in1] \n\t" |
| "sh %[x1], 2(%[input_temp]) \n\t" |
| "srl %[x1], %[x1], 16 \n\t" |
| "sh %[x1], 0(%[input_temp]) \n\t" |
| |
| : [x1] "=&r" (x1), [in1] "=&r" (in1), [dq1] "=&r" (dq1), |
| [in2] "=&r" (in2), [dq2] "=&r" (dq2) |
| : [dq] "r" (dq), [input] "r" (input), |
| [input_temp] "r" (input_temp) |
| ); |
| |
| for (i = 2; i < 16; i++) |
| { |
| input_temp[i] = dq[i] * input[i]; |
| } |
| |
| /* the idct halves ( >> 1) the pitch */ |
| vp8_short_idct4x4llm_mips(input_temp, output, 4); |
| |
| vpx_memset(input, 0, 32); |
| |
| /* unroll the loop */ |
| for (i = 4; i--; ) |
| { |
| a0 = diff_ptr[0] + pred[0]; |
| a1 = diff_ptr[1] + pred[1]; |
| a2 = diff_ptr[2] + pred[2]; |
| a3 = diff_ptr[3] + pred[3]; |
| |
| dest[0] = cm[a0]; |
| dest[1] = cm[a1]; |
| dest[2] = cm[a2]; |
| dest[3] = cm[a3]; |
| |
| dest += stride; |
| diff_ptr += 4; |
| pred += pitch; |
| } |
| } |
| |
| |
| void vp8_dequant_dc_idct_add_mips(short *input, short *dq, unsigned char *pred, |
| unsigned char *dest, int pitch, int stride, |
| int Dc) |
| { |
| int i; |
| short output[16]; |
| short *diff_ptr = output; |
| short input_temp[16]; |
| short a1, a2, a3, a0; |
| |
| unsigned int in1, dq1, x1, in2, dq2; |
| const unsigned char *cm = &(cma[128]); |
| |
| input_temp[0] = (short)Dc; |
| |
| __asm__ __volatile__ ( |
| "lh %[in1], 2(%[input]) \n\t" |
| "lh %[dq1], 2(%[dq]) \n\t" |
| "lh %[in2], 4(%[input]) \n\t" |
| "lh %[dq2], 4(%[dq]) \n\t" |
| "append %[in1], %[in2], 16 \n\t" |
| "append %[dq1], %[dq2], 16 \n\t" |
| "mul.ph %[x1], %[dq1], %[in1] \n\t" |
| "sh %[x1], 4(%[input_temp]) \n\t" |
| "srl %[x1], %[x1], 16 \n\t" |
| "sh %[x1], 2(%[input_temp]) \n\t" |
| |
| : [x1] "=&r" (x1), [in1] "=&r" (in1), [dq1] "=&r" (dq1), |
| [in2] "=&r" (in2), [dq2] "=&r" (dq2) |
| : [dq] "r" (dq), [input] "r" (input), |
| [input_temp] "r" (input_temp) |
| ); |
| |
| for (i = 3; i < 16; i++) |
| { |
| input_temp[i] = dq[i] * input[i]; |
| } |
| |
| vp8_short_idct4x4llm_mips(input_temp, output, 4); |
| |
| vpx_memset(input, 0, 32); |
| |
| for (i = 4; i--; ) |
| { |
| a0 = diff_ptr[0] + pred[0]; |
| a1 = diff_ptr[1] + pred[1]; |
| a2 = diff_ptr[2] + pred[2]; |
| a3 = diff_ptr[3] + pred[3]; |
| |
| dest[0] = cm[a0]; |
| dest[1] = cm[a1]; |
| dest[2] = cm[a2]; |
| dest[3] = cm[a3]; |
| |
| dest += stride; |
| diff_ptr += 4; |
| pred += pitch; |
| } |
| } |
