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