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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /media/libvpx/vp8/common/idct_blk.c | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'media/libvpx/vp8/common/idct_blk.c')
-rw-r--r-- | media/libvpx/vp8/common/idct_blk.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/media/libvpx/vp8/common/idct_blk.c b/media/libvpx/vp8/common/idct_blk.c new file mode 100644 index 000000000..8aa7d9bf0 --- /dev/null +++ b/media/libvpx/vp8/common/idct_blk.c @@ -0,0 +1,90 @@ +/* + * 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_config.h" +#include "vp8_rtcd.h" +#include "vpx_mem/vpx_mem.h" + +void vp8_dequant_idct_add_c(short *input, short *dq, + unsigned char *dest, int stride); +void vp8_dc_only_idct_add_c(short input_dc, unsigned char * pred, + int pred_stride, unsigned char *dst_ptr, + int dst_stride); + +void vp8_dequant_idct_add_y_block_c + (short *q, short *dq, + unsigned char *dst, int stride, char *eobs) +{ + int i, j; + + for (i = 0; i < 4; i++) + { + for (j = 0; j < 4; j++) + { + if (*eobs++ > 1) + vp8_dequant_idct_add_c (q, dq, dst, stride); + else + { + vp8_dc_only_idct_add_c (q[0]*dq[0], dst, stride, dst, stride); + memset(q, 0, 2 * sizeof(q[0])); + } + + q += 16; + dst += 4; + } + + dst += 4*stride - 16; + } +} + +void vp8_dequant_idct_add_uv_block_c + (short *q, short *dq, + unsigned char *dstu, unsigned char *dstv, int stride, char *eobs) +{ + int i, j; + + for (i = 0; i < 2; i++) + { + for (j = 0; j < 2; j++) + { + if (*eobs++ > 1) + vp8_dequant_idct_add_c (q, dq, dstu, stride); + else + { + vp8_dc_only_idct_add_c (q[0]*dq[0], dstu, stride, dstu, stride); + memset(q, 0, 2 * sizeof(q[0])); + } + + q += 16; + dstu += 4; + } + + dstu += 4*stride - 8; + } + + for (i = 0; i < 2; i++) + { + for (j = 0; j < 2; j++) + { + if (*eobs++ > 1) + vp8_dequant_idct_add_c (q, dq, dstv, stride); + else + { + vp8_dc_only_idct_add_c (q[0]*dq[0], dstv, stride, dstv, stride); + memset(q, 0, 2 * sizeof(q[0])); + } + + q += 16; + dstv += 4; + } + + dstv += 4*stride - 8; + } +} |