vpx/vp8/encoder/dct.h
Jingning Han 66f440f1ee Refactoring hybrid transform coding
The forward and inverse hybrid transforms are now performed using
single function modules, where the dimension is sent as argument.

Added an inline function clip8b to clip the reconstruction pixels
into range of 0-255.

Change-Id: Id7d870b3e1aefc092721c80c0af6f641eb5f3747
2012-08-06 17:26:21 -07:00

100 lines
2.4 KiB
C

/*
* 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.
*/
#ifndef __INC_DCT_H
#define __INC_DCT_H
#define prototype_fdct(sym) void (sym)(short *input, short *output, int pitch)
#if ARCH_X86 || ARCH_X86_64
#include "x86/dct_x86.h"
#endif
#if ARCH_ARM
#include "arm/dct_arm.h"
#endif
#if CONFIG_HYBRIDTRANSFORM8X8 || CONFIG_HYBRIDTRANSFORM
void vp8_fht_c(short *input, short *output, int pitch,
TX_TYPE tx_type, int tx_dim);
#endif
#if CONFIG_TX16X16
#ifndef vp8_fdct_short16x16
#define vp8_fdct_short16x16 vp8_short_fdct16x16_c
#endif
extern prototype_fdct(vp8_fdct_short16x16);
#endif
#ifndef vp8_fdct_short8x8
#define vp8_fdct_short8x8 vp8_short_fdct8x8_c
#endif
extern prototype_fdct(vp8_fdct_short8x8);
#ifndef vp8_fhaar_short2x2
#define vp8_fhaar_short2x2 vp8_short_fhaar2x2_c
#endif
extern prototype_fdct(vp8_fhaar_short2x2);
#ifndef vp8_fdct_short4x4
#define vp8_fdct_short4x4 vp8_short_fdct4x4_c
#endif
extern prototype_fdct(vp8_fdct_short4x4);
#ifndef vp8_fdct_short8x4
#define vp8_fdct_short8x4 vp8_short_fdct8x4_c
#endif
extern prototype_fdct(vp8_fdct_short8x4);
// There is no fast4x4 (for now)
#ifndef vp8_fdct_fast4x4
#define vp8_fdct_fast4x4 vp8_short_fdct4x4_c
#endif
#ifndef vp8_fdct_fast8x4
#define vp8_fdct_fast8x4 vp8_short_fdct8x4_c
#endif
#ifndef vp8_fdct_walsh_short4x4
#define vp8_fdct_walsh_short4x4 vp8_short_walsh4x4_c
#endif
extern prototype_fdct(vp8_fdct_walsh_short4x4);
#if CONFIG_LOSSLESS
extern prototype_fdct(vp8_short_walsh4x4_x8_c);
extern prototype_fdct(vp8_short_walsh8x4_x8_c);
extern prototype_fdct(vp8_short_walsh4x4_lossless_c);
#endif
typedef prototype_fdct(*vp8_fdct_fn_t);
typedef struct {
#if CONFIG_TX16X16
vp8_fdct_fn_t short16x16;
#endif
vp8_fdct_fn_t short8x8;
vp8_fdct_fn_t haar_short2x2;
vp8_fdct_fn_t short4x4;
vp8_fdct_fn_t short8x4;
vp8_fdct_fn_t fast4x4;
vp8_fdct_fn_t fast8x4;
vp8_fdct_fn_t walsh_short4x4;
} vp8_fdct_rtcd_vtable_t;
#if CONFIG_RUNTIME_CPU_DETECT
#define FDCT_INVOKE(ctx,fn) (ctx)->fn
#else
#define FDCT_INVOKE(ctx,fn) vp8_fdct_##fn
#endif
#endif