d41b0e6498
The block sizes for decoding tokens are up to 16x16, which means eobs is within [0, 256]. Using (signed) char is not enough. Changed eobs data type to unsigned short to fix the problem. Change-Id: I88a7d3098e1f1604c336d6adb88ffec971fb03a6
118 lines
4.0 KiB
C
118 lines
4.0 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "vpx_ports/config.h"
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#include "vp9/common/idct.h"
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#include "vp9/decoder/dequantize.h"
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void vp9_idct_dequant_dc_0_2x_sse2(short *q, short *dq,
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unsigned char *pre, unsigned char *dst,
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int dst_stride, short *dc);
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void vp9_idct_dequant_dc_full_2x_sse2(short *q, short *dq,
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unsigned char *pre, unsigned char *dst,
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int dst_stride, short *dc);
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void vp9_idct_dequant_0_2x_sse2(short *q, short *dq,
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unsigned char *pre, unsigned char *dst,
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int dst_stride, int blk_stride);
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void vp9_idct_dequant_full_2x_sse2(short *q, short *dq,
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unsigned char *pre, unsigned char *dst,
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int dst_stride, int blk_stride);
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void vp9_dequant_dc_idct_add_y_block_sse2(short *q, short *dq,
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unsigned char *pre,
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unsigned char *dst,
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int stride, unsigned short *eobs,
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short *dc) {
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int i;
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for (i = 0; i < 4; i++) {
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if (((short *)(eobs))[0] & 0xfefe)
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vp9_idct_dequant_dc_full_2x_sse2(q, dq, pre, dst, stride, dc);
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else
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vp9_idct_dequant_dc_0_2x_sse2(q, dq, pre, dst, stride, dc);
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if (((short *)(eobs))[1] & 0xfefe)
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vp9_idct_dequant_dc_full_2x_sse2(q + 32, dq, pre + 8, dst + 8,
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stride, dc + 2);
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else
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vp9_idct_dequant_dc_0_2x_sse2(q + 32, dq, pre + 8, dst + 8,
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stride, dc + 2);
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q += 64;
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dc += 4;
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pre += 64;
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dst += stride * 4;
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eobs += 4;
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}
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}
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void vp9_dequant_idct_add_y_block_sse2(short *q, short *dq,
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unsigned char *pre, unsigned char *dst,
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int stride, unsigned short *eobs) {
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int i;
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for (i = 0; i < 4; i++) {
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if (((short *)(eobs))[0] & 0xfefe)
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vp9_idct_dequant_full_2x_sse2(q, dq, pre, dst, stride, 16);
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else
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vp9_idct_dequant_0_2x_sse2(q, dq, pre, dst, stride, 16);
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if (((short *)(eobs))[1] & 0xfefe)
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vp9_idct_dequant_full_2x_sse2(q + 32, dq, pre + 8, dst + 8, stride, 16);
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else
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vp9_idct_dequant_0_2x_sse2(q + 32, dq, pre + 8, dst + 8, stride, 16);
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q += 64;
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pre += 64;
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dst += stride * 4;
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eobs += 4;
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}
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}
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void vp9_dequant_idct_add_uv_block_sse2(short *q, short *dq,
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unsigned char *pre,
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unsigned char *dstu,
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unsigned char *dstv,
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int stride, unsigned short *eobs) {
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if (((short *)(eobs))[0] & 0xfefe)
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vp9_idct_dequant_full_2x_sse2(q, dq, pre, dstu, stride, 8);
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else
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vp9_idct_dequant_0_2x_sse2(q, dq, pre, dstu, stride, 8);
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q += 32;
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pre += 32;
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dstu += stride * 4;
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if (((short *)(eobs))[1] & 0xfefe)
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vp9_idct_dequant_full_2x_sse2(q, dq, pre, dstu, stride, 8);
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else
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vp9_idct_dequant_0_2x_sse2(q, dq, pre, dstu, stride, 8);
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q += 32;
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pre += 32;
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if (((short *)(eobs))[2] & 0xfefe)
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vp9_idct_dequant_full_2x_sse2(q, dq, pre, dstv, stride, 8);
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else
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vp9_idct_dequant_0_2x_sse2(q, dq, pre, dstv, stride, 8);
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q += 32;
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pre += 32;
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dstv += stride * 4;
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if (((short *)(eobs))[3] & 0xfefe)
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vp9_idct_dequant_full_2x_sse2(q, dq, pre, dstv, stride, 8);
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else
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vp9_idct_dequant_0_2x_sse2(q, dq, pre, dstv, stride, 8);
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}
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