/*
* LIBOIL - Library of Optimized Inner Loops
* Copyright (c) 2001,2002,2003,2004 David A. Schleef <ds@schleef.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
//Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <liboil/liboil.h>
#include <liboil/liboiltest.h>
#include <liboil/liboilrandom.h>
#include "liboil/dct/dct.h"
#include <math.h>
#ifdef __SYMBIAN32__
#ifdef __WINSCW__
#pragma warn_unusedarg off
#endif//__WINSCW__
#endif//__SYMBIAN32__
static void
idct8theora_s16_test (OilTest *test)
{
int i;
int stride = test->params[OIL_ARG_SSTR1].value;
uint16_t *ptr = (uint16_t *)oil_test_get_source_data(test,OIL_ARG_SRC1);
for(i=0;i<8;i++){
OIL_GET(ptr, i*stride, int16_t) = oil_rand_s16() >> 3;
//OIL_GET(ptr, i*stride, int16_t) = 0;
}
//OIL_GET(ptr, 0*stride, int16_t) = 100;
}
static void
idct8x8theora_s16_test (OilTest *test)
{
int i;
int j;
int stride = test->params[OIL_ARG_SSTR1].value;
uint16_t *ptr = (uint16_t *)oil_test_get_source_data(test,OIL_ARG_SRC1);
for(i=0;i<8;i++){
for(j=0;j<8;j++){
OIL_GET(ptr, i*stride + j*2, int16_t) = oil_rand_s16() >> 3;
}
}
}
/**
* oil_idct8theora_s16:
* @d_8:
* @dstr:
* @s_8:
* @sstr:
*
* Performs a Inverse Discrete Cosine Transform on @s_8 and places
* the result in @d_8, as defined by the Theora specification.
*/
OIL_DEFINE_CLASS_FULL (idct8theora_s16, "int16_t *d_8, int dstr, int16_t *s_8, int sstr", idct8theora_s16_test);
/**
* oil_idct8x8theora_s16:
* @d_8x8:
* @dstr:
* @s_8x8:
* @sstr:
*
* Performs a Inverse Discrete Cosine Transform on @s_8x8 and places
* the result in @d_8x8, as defined by the Theora specification.
*/
OIL_DEFINE_CLASS_FULL (idct8x8theora_s16, "int16_t *d_8x8, int dstr, int16_t *s_8x8, int sstr", idct8x8theora_s16_test);
#define C1 64277
#define C2 60547
#define C3 54491
#define C4 46341
#define C5 36410
#define C6 25080
#define C7 12785
#define S7 64277
#define S6 60547
#define S5 54491
#define S4 46341
#define S3 36410
#define S2 25080
#define S1 12785
#define TRUNC(x) ((int16_t)x)
#define MULT(a,b) (((a)*(b))>>16)
static void
idct8theora_s16_ref (int16_t *dest, int dstr, const int16_t *src, int sstr)
{
int32_t t[10];
int32_t r;
#define Y(i) OIL_GET(src,sstr*(i),int16_t)
#define X(i) OIL_GET(dest,sstr*(i),int16_t)
/* the ordering here corresponds closely to the theora spec */
t[0] = MULT(C4, Y(0) + Y(4));
t[0] = TRUNC(t[0]);
t[1] = MULT(C4, Y(0) - Y(4));
t[1] = TRUNC(t[1]);
t[2] = MULT(C6, Y(2)) - MULT(S6, Y(6));
t[3] = MULT(S6, Y(2)) + MULT(C6, Y(6));
t[4] = MULT(C7, Y(1)) - MULT(S7, Y(7));
t[5] = MULT(C3, Y(5)) - MULT(S3, Y(3));
t[6] = MULT(S3, Y(5)) + MULT(C3, Y(3));
t[7] = MULT(S7, Y(1)) + MULT(C7, Y(7));
r = t[4] + t[5];
t[5] = MULT(C4, t[4] - t[5]);
t[5] = TRUNC(t[5]);
t[4] = r;
r = t[7] + t[6];
t[6] = MULT(C4, t[7] - t[6]);
t[6] = TRUNC(t[6]);
t[7] = r;
r = t[0] + t[3];
t[3] = t[0] - t[3];
t[0] = r;
r = t[1] + t[2];
t[2] = t[1] - t[2];
t[1] = r;
r = t[6] + t[5];
t[5] = t[6] - t[5];
t[6] = r;
r = t[0] + t[7];
r = TRUNC(r);
X(0) = r;
r = t[1] + t[6];
r = TRUNC(r);
X(1) = r;
r = t[2] + t[5];
r = TRUNC(r);
X(2) = r;
r = t[3] + t[4];
r = TRUNC(r);
X(3) = r;
r = t[3] - t[4];
r = TRUNC(r);
X(4) = r;
r = t[2] - t[5];
r = TRUNC(r);
X(5) = r;
r = t[1] - t[6];
r = TRUNC(r);
X(6) = r;
r = t[0] - t[7];
r = TRUNC(r);
X(7) = r;
}
OIL_DEFINE_IMPL_REF (idct8theora_s16_ref, idct8theora_s16);
static void
idct8x8theora_s16_ref (int16_t *dest, int dstr, const int16_t *src, int sstr)
{
int i;
int16_t tmp[64];
for(i=0;i<8;i++){
idct8theora_s16_ref(
OIL_OFFSET(tmp, 8*sizeof(int16_t) * i), sizeof(int16_t),
OIL_OFFSET(src, sstr * i), sizeof(int16_t));
}
for(i=0;i<8;i++){
idct8theora_s16_ref(
OIL_OFFSET(dest, sizeof(int16_t) * i), dstr,
OIL_OFFSET(tmp, sizeof(int16_t) * i), sizeof(int16_t) * 8);
}
}
OIL_DEFINE_IMPL_REF (idct8x8theora_s16_ref, idct8x8theora_s16);
#ifdef __SYMBIAN32__
OilFunctionClass* __oil_function_class_idct8theora_s16() {
return &_oil_function_class_idct8theora_s16;
}
#endif
#ifdef __SYMBIAN32__
OilFunctionClass* __oil_function_class_idct8x8theora_s16() {
return &_oil_function_class_idct8x8theora_s16;
}
#endif
#ifdef __SYMBIAN32__
OilFunctionImpl* __oil_function_impl_idct8theora_s16_ref() {
return &_oil_function_impl_idct8theora_s16_ref;
}
#endif
#ifdef __SYMBIAN32__
OilFunctionImpl* __oil_function_impl_idct8x8theora_s16_ref() {
return &_oil_function_impl_idct8x8theora_s16_ref;
}
#endif
#ifdef __SYMBIAN32__
EXPORT_C void** _oil_function_class_ptr_idct8theora_s16 () {
oil_function_class_ptr_idct8theora_s16 = __oil_function_class_idct8theora_s16();
return &oil_function_class_ptr_idct8theora_s16->func;
}
#endif
#ifdef __SYMBIAN32__
EXPORT_C void** _oil_function_class_ptr_idct8x8theora_s16 () {
oil_function_class_ptr_idct8x8theora_s16 = __oil_function_class_idct8x8theora_s16();
return &oil_function_class_ptr_idct8x8theora_s16->func;
}
#endif