4a91541c94
to the dqcoeff or qcoeff buffer. The encoder would populate the dc coeffs of the y blocks as a separate stage (recon_dcblock) and the decoder would use a special version of the idct. This change eliminates the extra copy and reduces the code footprint. [Tero] Added needed changes to armv6 and NEON assembly. Change-Id: I83202ffdbaf83f6e5dd69f4ba2519fcf0b13b3ba
81 lines
2.2 KiB
C
81 lines
2.2 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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#ifndef __INC_IDCT_H
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#define __INC_IDCT_H
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#define prototype_second_order(sym) \
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void sym(short *input, short *output)
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#define prototype_idct(sym) \
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void sym(short *input, unsigned char *pred, int pitch, unsigned char *dst, \
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int dst_stride)
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#define prototype_idct_scalar_add(sym) \
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void sym(short input, \
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unsigned char *pred, int pred_stride, \
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unsigned char *dst, \
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int dst_stride)
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#if ARCH_X86 || ARCH_X86_64
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#include "x86/idct_x86.h"
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#endif
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#if ARCH_ARM
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#include "arm/idct_arm.h"
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#endif
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#ifndef vp8_idct_idct16
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#define vp8_idct_idct16 vp8_short_idct4x4llm_c
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#endif
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extern prototype_idct(vp8_idct_idct16);
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/* add this prototype to prevent compiler warning about implicit
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* declaration of vp8_short_idct4x4llm_c function in dequantize.c
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* when building, for example, neon optimized version */
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extern prototype_idct(vp8_short_idct4x4llm_c);
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#ifndef vp8_idct_idct1_scalar_add
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#define vp8_idct_idct1_scalar_add vp8_dc_only_idct_add_c
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#endif
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extern prototype_idct_scalar_add(vp8_idct_idct1_scalar_add);
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#ifndef vp8_idct_iwalsh1
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#define vp8_idct_iwalsh1 vp8_short_inv_walsh4x4_1_c
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#endif
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extern prototype_second_order(vp8_idct_iwalsh1);
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#ifndef vp8_idct_iwalsh16
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#define vp8_idct_iwalsh16 vp8_short_inv_walsh4x4_c
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#endif
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extern prototype_second_order(vp8_idct_iwalsh16);
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typedef prototype_idct((*vp8_idct_fn_t));
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typedef prototype_idct_scalar_add((*vp8_idct_scalar_add_fn_t));
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typedef prototype_second_order((*vp8_second_order_fn_t));
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typedef struct
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{
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vp8_idct_fn_t idct16;
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vp8_idct_scalar_add_fn_t idct1_scalar_add;
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vp8_second_order_fn_t iwalsh1;
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vp8_second_order_fn_t iwalsh16;
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} vp8_idct_rtcd_vtable_t;
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#if CONFIG_RUNTIME_CPU_DETECT
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#define IDCT_INVOKE(ctx,fn) (ctx)->fn
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#else
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#define IDCT_INVOKE(ctx,fn) vp8_idct_##fn
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#endif
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#endif
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