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/liboiltest.h>
sl@0: #include "jpeg.h"
sl@0: 
sl@0: /**
sl@0:  * oil_yuv2rgbx_u8:
sl@0:  * @d_4xn:
sl@0:  * @src1: Y component
sl@0:  * @src2: U component
sl@0:  * @src3: V component
sl@0:  * @n:
sl@0:  *
sl@0:  * Converts YUV pixels to RGB pixels.  Each YUV component is in a
sl@0:  * separate source array, and are combined and converted to RGB.
sl@0:  *
sl@0:  * This function should be replaced by one that makes sense.
sl@0:  */
sl@0: OIL_DEFINE_CLASS (yuv2rgbx_u8,
sl@0:     "uint8_t *d_4xn, uint8_t *src1, uint8_t *src2, uint8_t *src3, int n");
sl@0: /**
sl@0:  * oil_yuv2rgbx_sub2_u8:
sl@0:  * @d_4xn:
sl@0:  * @src1: Y component
sl@0:  * @src2: U component
sl@0:  * @src3: V component
sl@0:  * @n:
sl@0:  *
sl@0:  * Converts YUV pixels to RGB pixels.  Each YUV component is in a
sl@0:  * separate source array, and are combined and converted to RGB.
sl@0:  * The U and V arrays are subsampled by a factor of 2, so only
sl@0:  * half of each array is used.
sl@0:  *
sl@0:  * This function should be replaced by one that makes sense.
sl@0:  */
sl@0: OIL_DEFINE_CLASS (yuv2rgbx_sub2_u8,
sl@0:     "uint8_t *d_4xn, uint8_t *src1, uint8_t *src2, uint8_t *src3, int n");
sl@0: /**
sl@0:  * oil_yuv2rgbx_sub4_u8:
sl@0:  * @d_4xn:
sl@0:  * @src1: Y component
sl@0:  * @src2: U component
sl@0:  * @src3: V component
sl@0:  * @n:
sl@0:  *
sl@0:  * Converts YUV pixels to RGB pixels.  Each YUV component is in a
sl@0:  * separate source array, and are combined and converted to RGB.
sl@0:  * The U and V arrays are subsampled by a factor of 4, so only
sl@0:  * a quarter of each array is used.
sl@0:  *
sl@0:  * This function should be replaced by one that makes sense.
sl@0:  */
sl@0: OIL_DEFINE_CLASS (yuv2rgbx_sub4_u8,
sl@0:     "uint8_t *d_4xn, uint8_t *src1, uint8_t *src2, uint8_t *src3, int n");
sl@0: 
sl@0: #define clamp(x,a,b) clamp_lower(clamp_upper(x,b),a)
sl@0: #define clamp_lower(x,a) ((x<a)?(a):(x))
sl@0: #define clamp_upper(x,b) ((x>b)?(b):(x))
sl@0: 
sl@0: /* from the JFIF spec */
sl@0: #define YUV_TO_R(y,u,v) clamp((y) + 1.402*((v)-128),0,255)
sl@0: #define YUV_TO_G(y,u,v) clamp((y) - 0.34414*((u)-128) - 0.71414*((v)-128),0,255)
sl@0: #define YUV_TO_B(y,u,v) clamp((y) + 1.772*((u)-128),0,255)
sl@0: 
sl@0: #define YUV_TO_R_INT(y,u,v) clamp(((y)*256 + 358*((v)-128))>>8,0,255)
sl@0: #define YUV_TO_G_INT(y,u,v) clamp(((y)*256 - 88*((u)-128) - 183*((v)-128))>>8,0,255)
sl@0: #define YUV_TO_B_INT(y,u,v) clamp(((y)*256 + 454*((u)-128))>>8,0,255)
sl@0: 
sl@0: 
sl@0: static void
sl@0: yuv2rgbx_u8_ref (uint8_t *rgbp, uint8_t *yp, uint8_t *up, uint8_t *vp, int n)
sl@0: {
sl@0: 	int i;
sl@0: 
sl@0: 	for(i=0;i<n;i++){
sl@0: 		rgbp[0] = YUV_TO_R(yp[0], up[0], vp[0]);
sl@0: 		rgbp[1] = YUV_TO_G(yp[0], up[0], vp[0]);
sl@0: 		rgbp[2] = YUV_TO_B(yp[0], up[0], vp[0]);
sl@0: 		rgbp[3] = 0;
sl@0: 		rgbp+=4;
sl@0: 		yp++;
sl@0: 		up++;
sl@0: 		vp++;
sl@0: 	}
sl@0: }
sl@0: 
sl@0: OIL_DEFINE_IMPL_REF (yuv2rgbx_u8_ref, yuv2rgbx_u8);
sl@0: 
sl@0: #ifdef ENABLE_BROKEN_IMPLS
sl@0: static void
sl@0: yuv2rgbx_u8_int (uint8_t *rgbp, uint8_t *yp, uint8_t *up, uint8_t *vp, int n)
sl@0: {
sl@0: 	int i;
sl@0: 
sl@0: 	for(i=0;i<n;i++){
sl@0: 		rgbp[0] = YUV_TO_R_INT(yp[0], up[0], vp[0]);
sl@0: 		rgbp[1] = YUV_TO_G_INT(yp[0], up[0], vp[0]);
sl@0: 		rgbp[2] = YUV_TO_B_INT(yp[0], up[0], vp[0]);
sl@0: 		rgbp[3] = 0;
sl@0: 		rgbp+=4;
sl@0: 		yp++;
sl@0: 		up++;
sl@0: 		vp++;
sl@0: 	}
sl@0: }
sl@0: 
sl@0: OIL_DEFINE_IMPL (yuv2rgbx_u8_int, yuv2rgbx_u8);
sl@0: #endif
sl@0: 
sl@0: static void
sl@0: yuv2rgbx_sub2_u8_ref (uint8_t *rgbp, uint8_t *yp, uint8_t *up, uint8_t *vp, int n)
sl@0: {
sl@0: 	int i;
sl@0: 
sl@0: 	for(i=0;i<n/2;i++){
sl@0: 		rgbp[0] = YUV_TO_R(yp[0], up[0], vp[0]);
sl@0: 		rgbp[1] = YUV_TO_G(yp[0], up[0], vp[0]);
sl@0: 		rgbp[2] = YUV_TO_B(yp[0], up[0], vp[0]);
sl@0: 		rgbp[3] = 0;
sl@0: 		rgbp+=4;
sl@0: 		yp++;
sl@0: 		rgbp[0] = YUV_TO_R(yp[0], up[0], vp[0]);
sl@0: 		rgbp[1] = YUV_TO_G(yp[0], up[0], vp[0]);
sl@0: 		rgbp[2] = YUV_TO_B(yp[0], up[0], vp[0]);
sl@0: 		rgbp[3] = 0;
sl@0: 		rgbp+=4;
sl@0: 		yp++;
sl@0: 		up++;
sl@0: 		vp++;
sl@0: 	}
sl@0: }
sl@0: 
sl@0: OIL_DEFINE_IMPL_REF (yuv2rgbx_sub2_u8_ref, yuv2rgbx_sub2_u8);
sl@0: 
sl@0: static void
sl@0: yuv2rgbx_sub4_u8_ref (uint8_t *rgbp, uint8_t *yp, uint8_t *up, uint8_t *vp, int n)
sl@0: {
sl@0: 	int i;
sl@0: 
sl@0: 	for(i=0;i<n/4;i++){
sl@0: 		rgbp[0] = YUV_TO_R(yp[0], up[0], vp[0]);
sl@0: 		rgbp[1] = YUV_TO_G(yp[0], up[0], vp[0]);
sl@0: 		rgbp[2] = YUV_TO_B(yp[0], up[0], vp[0]);
sl@0: 		rgbp[3] = 0;
sl@0: 		rgbp+=4;
sl@0: 		yp++;
sl@0: 		rgbp[0] = YUV_TO_R(yp[0], up[0], vp[0]);
sl@0: 		rgbp[1] = YUV_TO_G(yp[0], up[0], vp[0]);
sl@0: 		rgbp[2] = YUV_TO_B(yp[0], up[0], vp[0]);
sl@0: 		rgbp[3] = 0;
sl@0: 		rgbp+=4;
sl@0: 		yp++;
sl@0: 		rgbp[0] = YUV_TO_R(yp[0], up[0], vp[0]);
sl@0: 		rgbp[1] = YUV_TO_G(yp[0], up[0], vp[0]);
sl@0: 		rgbp[2] = YUV_TO_B(yp[0], up[0], vp[0]);
sl@0: 		rgbp[3] = 0;
sl@0: 		rgbp+=4;
sl@0: 		yp++;
sl@0: 		rgbp[0] = YUV_TO_R(yp[0], up[0], vp[0]);
sl@0: 		rgbp[1] = YUV_TO_G(yp[0], up[0], vp[0]);
sl@0: 		rgbp[2] = YUV_TO_B(yp[0], up[0], vp[0]);
sl@0: 		rgbp[3] = 0;
sl@0: 		rgbp+=4;
sl@0: 		yp++;
sl@0: 		up++;
sl@0: 		vp++;
sl@0: 	}
sl@0: }
sl@0: 
sl@0: OIL_DEFINE_IMPL_REF (yuv2rgbx_sub4_u8_ref, yuv2rgbx_sub4_u8);
sl@0: 
sl@0: 
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionClass* __oil_function_class_yuv2rgbx_u8() {
sl@0: 		return &_oil_function_class_yuv2rgbx_u8;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionClass* __oil_function_class_yuv2rgbx_sub2_u8() {
sl@0: 		return &_oil_function_class_yuv2rgbx_sub2_u8;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionClass* __oil_function_class_yuv2rgbx_sub4_u8() {
sl@0: 		return &_oil_function_class_yuv2rgbx_sub4_u8;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: 
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionImpl* __oil_function_impl_yuv2rgbx_u8_ref() {
sl@0: 		return &_oil_function_impl_yuv2rgbx_u8_ref;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: 
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionImpl* __oil_function_impl_yuv2rgbx_sub2_u8_ref() {
sl@0: 		return &_oil_function_impl_yuv2rgbx_sub2_u8_ref;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionImpl* __oil_function_impl_yuv2rgbx_sub4_u8_ref() {
sl@0: 		return &_oil_function_impl_yuv2rgbx_sub4_u8_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_yuv2rgbx_u8 ()	{
sl@0: 	oil_function_class_ptr_yuv2rgbx_u8 = __oil_function_class_yuv2rgbx_u8();
sl@0: 	return &oil_function_class_ptr_yuv2rgbx_u8->func;
sl@0: 	}
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: EXPORT_C void** _oil_function_class_ptr_yuv2rgbx_sub2_u8 ()	{
sl@0: 	oil_function_class_ptr_yuv2rgbx_sub2_u8 = __oil_function_class_yuv2rgbx_sub2_u8();
sl@0: 	return &oil_function_class_ptr_yuv2rgbx_sub2_u8->func;
sl@0: 	}
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: EXPORT_C void** _oil_function_class_ptr_yuv2rgbx_sub4_u8 ()	{
sl@0: 	oil_function_class_ptr_yuv2rgbx_sub4_u8 = __oil_function_class_yuv2rgbx_sub4_u8();
sl@0: 	return &oil_function_class_ptr_yuv2rgbx_sub4_u8->func;
sl@0: 	}
sl@0: #endif
sl@0: