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path: root/chromium/third_party/libvpx/source/libvpx/vp8/common/mips/dspr2/idctllm_dspr2.c
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Diffstat (limited to 'chromium/third_party/libvpx/source/libvpx/vp8/common/mips/dspr2/idctllm_dspr2.c')
-rw-r--r--chromium/third_party/libvpx/source/libvpx/vp8/common/mips/dspr2/idctllm_dspr2.c369
1 files changed, 0 insertions, 369 deletions
diff --git a/chromium/third_party/libvpx/source/libvpx/vp8/common/mips/dspr2/idctllm_dspr2.c b/chromium/third_party/libvpx/source/libvpx/vp8/common/mips/dspr2/idctllm_dspr2.c
deleted file mode 100644
index 2eff71069db..00000000000
--- a/chromium/third_party/libvpx/source/libvpx/vp8/common/mips/dspr2/idctllm_dspr2.c
+++ /dev/null
@@ -1,369 +0,0 @@
-/*
- * Copyright (c) 2012 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 "vp8_rtcd.h"
-
-#if HAVE_DSPR2
-#define CROP_WIDTH 256
-
-/******************************************************************************
- * Notes:
- *
- * This implementation makes use of 16 bit fixed point version of two multiply
- * constants:
- * 1. sqrt(2) * cos (pi/8)
- * 2. sqrt(2) * sin (pi/8)
- * Since the first constant is bigger than 1, to maintain the same 16 bit
- * fixed point precision as the second one, we use a trick of
- * x * a = x + x*(a-1)
- * so
- * x * sqrt(2) * cos (pi/8) = x + x * (sqrt(2) *cos(pi/8)-1).
- ****************************************************************************/
-extern unsigned char ff_cropTbl[256 + 2 * CROP_WIDTH];
-static const int cospi8sqrt2minus1 = 20091;
-static const int sinpi8sqrt2 = 35468;
-
-inline void prefetch_load_short(short *src)
-{
- __asm__ __volatile__ (
- "pref 0, 0(%[src]) \n\t"
- :
- : [src] "r" (src)
- );
-}
-
-void vp8_short_idct4x4llm_dspr2(short *input, unsigned char *pred_ptr,
- int pred_stride, unsigned char *dst_ptr,
- int dst_stride)
-{
- int r, c;
- int a1, b1, c1, d1;
- short output[16];
- short *ip = input;
- short *op = output;
- int temp1, temp2;
- int shortpitch = 4;
-
- int c2, d2;
- int temp3, temp4;
- unsigned char *cm = ff_cropTbl + CROP_WIDTH;
-
- /* prepare data for load */
- prefetch_load_short(ip + 8);
-
- /* first loop is unrolled */
- a1 = ip[0] + ip[8];
- b1 = ip[0] - ip[8];
-
- temp1 = (ip[4] * sinpi8sqrt2) >> 16;
- temp2 = ip[12] + ((ip[12] * cospi8sqrt2minus1) >> 16);
- c1 = temp1 - temp2;
-
- temp1 = ip[4] + ((ip[4] * cospi8sqrt2minus1) >> 16);
- temp2 = (ip[12] * sinpi8sqrt2) >> 16;
- d1 = temp1 + temp2;
-
- temp3 = (ip[5] * sinpi8sqrt2) >> 16;
- temp4 = ip[13] + ((ip[13] * cospi8sqrt2minus1) >> 16);
- c2 = temp3 - temp4;
-
- temp3 = ip[5] + ((ip[5] * cospi8sqrt2minus1) >> 16);
- temp4 = (ip[13] * sinpi8sqrt2) >> 16;
- d2 = temp3 + temp4;
-
- op[0] = a1 + d1;
- op[12] = a1 - d1;
- op[4] = b1 + c1;
- op[8] = b1 - c1;
-
- a1 = ip[1] + ip[9];
- b1 = ip[1] - ip[9];
-
- op[1] = a1 + d2;
- op[13] = a1 - d2;
- op[5] = b1 + c2;
- op[9] = b1 - c2;
-
- a1 = ip[2] + ip[10];
- b1 = ip[2] - ip[10];
-
- temp1 = (ip[6] * sinpi8sqrt2) >> 16;
- temp2 = ip[14] + ((ip[14] * cospi8sqrt2minus1) >> 16);
- c1 = temp1 - temp2;
-
- temp1 = ip[6] + ((ip[6] * cospi8sqrt2minus1) >> 16);
- temp2 = (ip[14] * sinpi8sqrt2) >> 16;
- d1 = temp1 + temp2;
-
- temp3 = (ip[7] * sinpi8sqrt2) >> 16;
- temp4 = ip[15] + ((ip[15] * cospi8sqrt2minus1) >> 16);
- c2 = temp3 - temp4;
-
- temp3 = ip[7] + ((ip[7] * cospi8sqrt2minus1) >> 16);
- temp4 = (ip[15] * sinpi8sqrt2) >> 16;
- d2 = temp3 + temp4;
-
- op[2] = a1 + d1;
- op[14] = a1 - d1;
- op[6] = b1 + c1;
- op[10] = b1 - c1;
-
- a1 = ip[3] + ip[11];
- b1 = ip[3] - ip[11];
-
- op[3] = a1 + d2;
- op[15] = a1 - d2;
- op[7] = b1 + c2;
- op[11] = b1 - c2;
-
- ip = output;
-
- /* prepare data for load */
- prefetch_load_short(ip + shortpitch);
-
- /* second loop is unrolled */
- a1 = ip[0] + ip[2];
- b1 = ip[0] - ip[2];
-
- temp1 = (ip[1] * sinpi8sqrt2) >> 16;
- temp2 = ip[3] + ((ip[3] * cospi8sqrt2minus1) >> 16);
- c1 = temp1 - temp2;
-
- temp1 = ip[1] + ((ip[1] * cospi8sqrt2minus1) >> 16);
- temp2 = (ip[3] * sinpi8sqrt2) >> 16;
- d1 = temp1 + temp2;
-
- temp3 = (ip[5] * sinpi8sqrt2) >> 16;
- temp4 = ip[7] + ((ip[7] * cospi8sqrt2minus1) >> 16);
- c2 = temp3 - temp4;
-
- temp3 = ip[5] + ((ip[5] * cospi8sqrt2minus1) >> 16);
- temp4 = (ip[7] * sinpi8sqrt2) >> 16;
- d2 = temp3 + temp4;
-
- op[0] = (a1 + d1 + 4) >> 3;
- op[3] = (a1 - d1 + 4) >> 3;
- op[1] = (b1 + c1 + 4) >> 3;
- op[2] = (b1 - c1 + 4) >> 3;
-
- a1 = ip[4] + ip[6];
- b1 = ip[4] - ip[6];
-
- op[4] = (a1 + d2 + 4) >> 3;
- op[7] = (a1 - d2 + 4) >> 3;
- op[5] = (b1 + c2 + 4) >> 3;
- op[6] = (b1 - c2 + 4) >> 3;
-
- a1 = ip[8] + ip[10];
- b1 = ip[8] - ip[10];
-
- temp1 = (ip[9] * sinpi8sqrt2) >> 16;
- temp2 = ip[11] + ((ip[11] * cospi8sqrt2minus1) >> 16);
- c1 = temp1 - temp2;
-
- temp1 = ip[9] + ((ip[9] * cospi8sqrt2minus1) >> 16);
- temp2 = (ip[11] * sinpi8sqrt2) >> 16;
- d1 = temp1 + temp2;
-
- temp3 = (ip[13] * sinpi8sqrt2) >> 16;
- temp4 = ip[15] + ((ip[15] * cospi8sqrt2minus1) >> 16);
- c2 = temp3 - temp4;
-
- temp3 = ip[13] + ((ip[13] * cospi8sqrt2minus1) >> 16);
- temp4 = (ip[15] * sinpi8sqrt2) >> 16;
- d2 = temp3 + temp4;
-
- op[8] = (a1 + d1 + 4) >> 3;
- op[11] = (a1 - d1 + 4) >> 3;
- op[9] = (b1 + c1 + 4) >> 3;
- op[10] = (b1 - c1 + 4) >> 3;
-
- a1 = ip[12] + ip[14];
- b1 = ip[12] - ip[14];
-
- op[12] = (a1 + d2 + 4) >> 3;
- op[15] = (a1 - d2 + 4) >> 3;
- op[13] = (b1 + c2 + 4) >> 3;
- op[14] = (b1 - c2 + 4) >> 3;
-
- ip = output;
-
- for (r = 0; r < 4; r++)
- {
- for (c = 0; c < 4; c++)
- {
- short a = ip[c] + pred_ptr[c] ;
- dst_ptr[c] = cm[a] ;
- }
-
- ip += 4;
- dst_ptr += dst_stride;
- pred_ptr += pred_stride;
- }
-}
-
-void vp8_dc_only_idct_add_dspr2(short input_dc, unsigned char *pred_ptr, int pred_stride, unsigned char *dst_ptr, int dst_stride)
-{
- int a1;
- int i, absa1;
- int t2, vector_a1, vector_a;
-
- /* a1 = ((input_dc + 4) >> 3); */
- __asm__ __volatile__ (
- "addi %[a1], %[input_dc], 4 \n\t"
- "sra %[a1], %[a1], 3 \n\t"
- : [a1] "=r" (a1)
- : [input_dc] "r" (input_dc)
- );
-
- if (a1 < 0)
- {
- /* use quad-byte
- * input and output memory are four byte aligned
- */
- __asm__ __volatile__ (
- "abs %[absa1], %[a1] \n\t"
- "replv.qb %[vector_a1], %[absa1] \n\t"
- : [absa1] "=r" (absa1), [vector_a1] "=r" (vector_a1)
- : [a1] "r" (a1)
- );
-
- /* use (a1 - predptr[c]) instead a1 + predptr[c] */
- for (i = 4; i--;)
- {
- __asm__ __volatile__ (
- "lw %[t2], 0(%[pred_ptr]) \n\t"
- "add %[pred_ptr], %[pred_ptr], %[pred_stride] \n\t"
- "subu_s.qb %[vector_a], %[t2], %[vector_a1] \n\t"
- "sw %[vector_a], 0(%[dst_ptr]) \n\t"
- "add %[dst_ptr], %[dst_ptr], %[dst_stride] \n\t"
- : [t2] "=&r" (t2), [vector_a] "=&r" (vector_a),
- [dst_ptr] "+&r" (dst_ptr), [pred_ptr] "+&r" (pred_ptr)
- : [dst_stride] "r" (dst_stride), [pred_stride] "r" (pred_stride), [vector_a1] "r" (vector_a1)
- );
- }
- }
- else
- {
- /* use quad-byte
- * input and output memory are four byte aligned
- */
- __asm__ __volatile__ (
- "replv.qb %[vector_a1], %[a1] \n\t"
- : [vector_a1] "=r" (vector_a1)
- : [a1] "r" (a1)
- );
-
- for (i = 4; i--;)
- {
- __asm__ __volatile__ (
- "lw %[t2], 0(%[pred_ptr]) \n\t"
- "add %[pred_ptr], %[pred_ptr], %[pred_stride] \n\t"
- "addu_s.qb %[vector_a], %[vector_a1], %[t2] \n\t"
- "sw %[vector_a], 0(%[dst_ptr]) \n\t"
- "add %[dst_ptr], %[dst_ptr], %[dst_stride] \n\t"
- : [t2] "=&r" (t2), [vector_a] "=&r" (vector_a),
- [dst_ptr] "+&r" (dst_ptr), [pred_ptr] "+&r" (pred_ptr)
- : [dst_stride] "r" (dst_stride), [pred_stride] "r" (pred_stride), [vector_a1] "r" (vector_a1)
- );
- }
- }
-
-}
-
-void vp8_short_inv_walsh4x4_dspr2(short *input, short *mb_dqcoeff)
-{
- short output[16];
- int i;
- int a1, b1, c1, d1;
- int a2, b2, c2, d2;
- short *ip = input;
- short *op = output;
-
- prefetch_load_short(ip);
-
- for (i = 4; i--;)
- {
- a1 = ip[0] + ip[12];
- b1 = ip[4] + ip[8];
- c1 = ip[4] - ip[8];
- d1 = ip[0] - ip[12];
-
- op[0] = a1 + b1;
- op[4] = c1 + d1;
- op[8] = a1 - b1;
- op[12] = d1 - c1;
-
- ip++;
- op++;
- }
-
- ip = output;
- op = output;
-
- prefetch_load_short(ip);
-
- for (i = 4; i--;)
- {
- a1 = ip[0] + ip[3] + 3;
- b1 = ip[1] + ip[2];
- c1 = ip[1] - ip[2];
- d1 = ip[0] - ip[3] + 3;
-
- a2 = a1 + b1;
- b2 = d1 + c1;
- c2 = a1 - b1;
- d2 = d1 - c1;
-
- op[0] = a2 >> 3;
- op[1] = b2 >> 3;
- op[2] = c2 >> 3;
- op[3] = d2 >> 3;
-
- ip += 4;
- op += 4;
- }
-
- for (i = 0; i < 16; i++)
- {
- mb_dqcoeff[i * 16] = output[i];
- }
-}
-
-void vp8_short_inv_walsh4x4_1_dspr2(short *input, short *mb_dqcoeff)
-{
- int a1;
-
- a1 = ((input[0] + 3) >> 3);
-
- __asm__ __volatile__ (
- "sh %[a1], 0(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 32(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 64(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 96(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 128(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 160(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 192(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 224(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 256(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 288(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 320(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 352(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 384(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 416(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 448(%[mb_dqcoeff]) \n\t"
- "sh %[a1], 480(%[mb_dqcoeff]) \n\t"
-
- :
- : [a1] "r" (a1), [mb_dqcoeff] "r" (mb_dqcoeff)
- );
-}
-
-#endif
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