sl@0: /*
sl@0:  * LIBOIL - Library of Optimized Inner Loops
sl@0:  * Copyright (c) 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/liboilfunction.h>
sl@0: #include <liboil/liboiltest.h>
sl@0: #include <liboil/liboilrandom.h>
sl@0: 
sl@0: 
sl@0: /**
sl@0:  * oil_resample_linear_u8:
sl@0:  * @d_n:
sl@0:  * @s_2xn:
sl@0:  * @n:
sl@0:  * @i_2:
sl@0:  *
sl@0:  * Linearly resamples a row of pixels.  FIXME.
sl@0:  */
sl@0: static void
sl@0: resample_linear_u8_test (OilTest *test)
sl@0: {
sl@0:   uint32_t *in = (uint32_t *) oil_test_get_source_data (test, OIL_ARG_INPLACE1);
sl@0: 
sl@0:   in[0] = 0;
sl@0:   in[1] = 65536;
sl@0: }
sl@0: OIL_DEFINE_CLASS_FULL (resample_linear_u8,
sl@0:     "uint8_t *d_n, uint8_t *s_2xn, int n, uint32_t *i_2",
sl@0:     resample_linear_u8_test);
sl@0: 
sl@0: /**
sl@0:  * oil_resample_linear_argb:
sl@0:  * @d_n:
sl@0:  * @s_2xn:
sl@0:  * @n:
sl@0:  * @i_2:
sl@0:  *
sl@0:  * Linearly resamples a row of pixels.  FIXME.
sl@0:  */
sl@0: static void
sl@0: resample_linear_argb_test (OilTest *test)
sl@0: {
sl@0:   uint32_t *in = (uint32_t *) oil_test_get_source_data (test, OIL_ARG_INPLACE1);
sl@0: 
sl@0:   in[0] = 0;
sl@0:   in[1] = 65536;
sl@0: }
sl@0: OIL_DEFINE_CLASS_FULL (resample_linear_argb,
sl@0:     "uint32_t *d_n, uint32_t *s_2xn, int n, uint32_t *i_2",
sl@0:     resample_linear_argb_test);
sl@0: 
sl@0: static void
sl@0: resample_linear_u8_ref (uint8_t *dest, uint8_t *src, int n,
sl@0:     uint32_t *in)
sl@0: {
sl@0:   int acc = in[0];
sl@0:   int increment = in[1];
sl@0:   int i;
sl@0:   int j;
sl@0:   int x;
sl@0: 
sl@0:   for(i=0;i<n;i++){
sl@0:     j = acc>>16;
sl@0:     x = (acc&0xffff)>>8;
sl@0:     dest[i] = (src[j]*(256-x) + src[j+1]*x) >> 8;
sl@0: 
sl@0:     acc += increment;
sl@0:   }
sl@0: 
sl@0:   in[0] = acc;
sl@0: }
sl@0: OIL_DEFINE_IMPL_REF (resample_linear_u8_ref, resample_linear_u8);
sl@0: 
sl@0: static void
sl@0: resample_linear_argb_ref (uint32_t *d, uint32_t *s, int n, uint32_t *in)
sl@0: {
sl@0:   uint8_t *src = (uint8_t *)s;
sl@0:   uint8_t *dest = (uint8_t *)d;
sl@0:   int acc = in[0];
sl@0:   int increment = in[1];
sl@0:   int i;
sl@0:   int j;
sl@0:   int x;
sl@0: 
sl@0:   for(i=0;i<n;i++){
sl@0:     j = acc>>16;
sl@0:     x = (acc&0xffff)>>8;
sl@0:     dest[4*i+0] = (src[4*j+0]*(256-x) + src[4*j+4]*x) >> 8;
sl@0:     dest[4*i+1] = (src[4*j+1]*(256-x) + src[4*j+5]*x) >> 8;
sl@0:     dest[4*i+2] = (src[4*j+2]*(256-x) + src[4*j+6]*x) >> 8;
sl@0:     dest[4*i+3] = (src[4*j+3]*(256-x) + src[4*j+7]*x) >> 8;
sl@0: 
sl@0:     acc += increment;
sl@0:   }
sl@0: 
sl@0:   in[0] = acc;
sl@0: }
sl@0: OIL_DEFINE_IMPL_REF (resample_linear_argb_ref, resample_linear_argb);
sl@0: 
sl@0: 
sl@0: static void
sl@0: merge_linear_test (OilTest *test)
sl@0: {
sl@0:   uint32_t *src3 = (uint32_t *) oil_test_get_source_data (test, OIL_ARG_SRC3);
sl@0: 
sl@0:   do {
sl@0:     src3[0] = oil_rand_u16() & 0x1ff;
sl@0:   } while (src3[0] > 256);
sl@0: }
sl@0: OIL_DEFINE_CLASS_FULL (merge_linear_argb,
sl@0:     "uint32_t *d_n, uint32_t *s_n, uint32_t *s2_n, uint32_t *s3_1, int n",
sl@0:     merge_linear_test);
sl@0: OIL_DEFINE_CLASS_FULL (merge_linear_u8,
sl@0:     "uint8_t *d_n, uint8_t *s_n, uint8_t *s2_n, uint32_t *s3_1, int n",
sl@0:     merge_linear_test);
sl@0: 
sl@0: /**
sl@0:  * oil_merge_linear_argb:
sl@0:  * @d_n:
sl@0:  * @s_n:
sl@0:  * @s2_n:
sl@0:  * @s3_1:
sl@0:  * @n:
sl@0:  *
sl@0:  * Linearly interpolate the @s_n and @s2_n arrays using the scale
sl@0:  * factor in @s3_1.  The value @s3_1 must be in the range [0, 256]
sl@0:  * A value of 0 indicates weights of 1.0 and 0.0 for
sl@0:  * the s_n and s2_n arrays respectively.  A value of 256 indicates
sl@0:  * weights of 0.0 and 1.0 respectively.
sl@0:  *
sl@0:  * This function is not intended for alpha blending; use one of the
sl@0:  * compositing functions instead.
sl@0:  */
sl@0: static void
sl@0: merge_linear_argb_ref (uint32_t *d, uint32_t *s1, uint32_t *s2,
sl@0:     uint32_t *src3, int n)
sl@0: {
sl@0:   uint8_t *src1 = (uint8_t *)s1;
sl@0:   uint8_t *src2 = (uint8_t *)s2;
sl@0:   uint8_t *dest = (uint8_t *)d;
sl@0:   int i;
sl@0:   int x = src3[0];
sl@0: 
sl@0:   for(i=0;i<n;i++){
sl@0:     dest[4*i+0] = (src1[4*i+0]*(256-x) + src2[4*i+0]*x) >> 8;
sl@0:     dest[4*i+1] = (src1[4*i+1]*(256-x) + src2[4*i+1]*x) >> 8;
sl@0:     dest[4*i+2] = (src1[4*i+2]*(256-x) + src2[4*i+2]*x) >> 8;
sl@0:     dest[4*i+3] = (src1[4*i+3]*(256-x) + src2[4*i+3]*x) >> 8;
sl@0:   }
sl@0: }
sl@0: OIL_DEFINE_IMPL_REF (merge_linear_argb_ref, merge_linear_argb);
sl@0: 
sl@0: 
sl@0: /**
sl@0:  * oil_merge_linear_u8:
sl@0:  * @d_n:
sl@0:  * @s_n:
sl@0:  * @s2_n:
sl@0:  * @s3_1:
sl@0:  * @n:
sl@0:  *
sl@0:  * Linearly interpolate the @s_n and @s2_n arrays using the scale
sl@0:  * factor in @s3_1.  The value @s3_1 must be in the range [0, 255].
sl@0:  * The value translates into weights of 1.0-(value/256.0) and
sl@0:  * (value/256.0) for the s_n and s2_n arrays respectively.
sl@0:  *
sl@0:  * This function is not intended for alpha blending; use one of the
sl@0:  * compositing functions instead.
sl@0:  */
sl@0: static void
sl@0: merge_linear_u8_ref (uint8_t *dest, uint8_t *src1, uint8_t *src2,
sl@0:     uint32_t *src3, int n)
sl@0: {
sl@0:   int i;
sl@0:   int x = src3[0];
sl@0: 
sl@0:   for(i=0;i<n;i++){
sl@0:     dest[i] = (src1[i]*(256-x) + src2[i]*x) >> 8;
sl@0:   }
sl@0: }
sl@0: OIL_DEFINE_IMPL_REF (merge_linear_u8_ref, merge_linear_u8);
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionClass* __oil_function_class_resample_linear_u8() {
sl@0:         return &_oil_function_class_resample_linear_u8;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionClass* __oil_function_class_resample_linear_argb() {
sl@0:         return &_oil_function_class_resample_linear_argb;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionClass* __oil_function_class_merge_linear_argb() {
sl@0:         return &_oil_function_class_merge_linear_argb;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionClass* __oil_function_class_merge_linear_u8() {
sl@0:         return &_oil_function_class_merge_linear_u8;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: 
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionImpl* __oil_function_impl_resample_linear_u8_ref() {
sl@0:         return &_oil_function_impl_resample_linear_u8_ref;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionImpl* __oil_function_impl_resample_linear_argb_ref() {
sl@0:         return &_oil_function_impl_resample_linear_argb_ref;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionImpl* __oil_function_impl_merge_linear_argb_ref() {
sl@0:         return &_oil_function_impl_merge_linear_argb_ref;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionImpl* __oil_function_impl_merge_linear_u8_ref() {
sl@0:         return &_oil_function_impl_merge_linear_u8_ref;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: EXPORT_C void** _oil_function_class_ptr_resample_linear_u8 ()	{
sl@0: 	oil_function_class_ptr_resample_linear_u8 = __oil_function_class_resample_linear_u8();
sl@0: 	return &oil_function_class_ptr_resample_linear_u8->func;
sl@0: 	}
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: EXPORT_C void** _oil_function_class_ptr_resample_linear_argb ()	{
sl@0: 	oil_function_class_ptr_resample_linear_argb = __oil_function_class_resample_linear_argb();
sl@0: 	return &oil_function_class_ptr_resample_linear_argb->func;
sl@0: 	}
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: EXPORT_C void** _oil_function_class_ptr_merge_linear_argb ()	{
sl@0: 	oil_function_class_ptr_merge_linear_argb = __oil_function_class_merge_linear_argb();
sl@0: 	return &oil_function_class_ptr_merge_linear_argb->func;
sl@0: 	}
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: EXPORT_C void** _oil_function_class_ptr_merge_linear_u8 ()	{
sl@0: 	oil_function_class_ptr_merge_linear_u8 = __oil_function_class_merge_linear_u8();
sl@0: 	return &oil_function_class_ptr_merge_linear_u8->func;
sl@0: 	}
sl@0: #endif
sl@0: