author | William Roberts <williamr@symbian.org> |
Thu, 22 Jul 2010 16:48:56 +0100 | |
branch | GCC_SURGE |
changeset 45 | 4b03adbd26ca |
parent 18 | 47c74d1534e1 |
permissions | -rw-r--r-- |
18
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/* |
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* LIBOIL - Library of Optimized Inner Loops |
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* Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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//Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. |
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|
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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|
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#include "liboil/liboil.h" |
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#include "liboilfunction.h" |
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#include "liboil/liboilcolorspace.h" |
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#include "liboil/liboiltest.h" |
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#include <string.h> |
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|
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/** |
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* oil_ayuv2argb_u8: |
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* @d_4xn: |
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* @s_4xn: |
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* @n: |
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* |
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* Converts AYUV pixels to ARGB pixels. AYUV pixels are in the |
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* JPEG colorspace. Note that this function doesn't follow normal |
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* liboil pixel conventions. |
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* |
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* (This function should be replaced by one that handles other |
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* conversion factors.) |
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*/ |
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OIL_DEFINE_CLASS (ayuv2argb_u8, "uint8_t *d_4xn, uint8_t *s_4xn, int n"); |
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|
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|
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#define clamp(x,a,b) clamp_lower(clamp_upper(x,b),a) |
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#define clamp_lower(x,a) ((x<a)?(a):(x)) |
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#define clamp_upper(x,b) ((x>b)?(b):(x)) |
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/* from the JFIF spec */ |
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#define YUV_TO_R(y,u,v) clamp((y) + 1.402*((v)-128.0),0,255) |
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#define YUV_TO_G(y,u,v) clamp((y) - 0.34414*((u)-128.0) - 0.71414*((v)-128.0),0,255) |
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#define YUV_TO_B(y,u,v) clamp((y) + 1.772*((u)-128.0),0,255) |
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|
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#define muldiv256(x,y) (((x)*(y) + 128)>>8) |
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#define YUV_TO_R_INT8(y,u,v) clamp((y) + muldiv256(359,(v)-128),0,255) |
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#define YUV_TO_G_INT8(y,u,v) clamp((y) + muldiv256(-88,(u)-128) + muldiv256(-183,(v)-128),0,255) |
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#define YUV_TO_B_INT8(y,u,v) clamp((y) + muldiv256(454,(u)-128),0,255) |
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|
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#define muldiv65536(x,y) (((x)*(y) + 32768)>>16) |
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#define YUV_TO_R_INT16(y,u,v) clamp((y) + muldiv65536(91881,(v)-128),0,255) |
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#define YUV_TO_G_INT16(y,u,v) clamp((y) - muldiv65536(22554,(u)-128) - muldiv65536(46802,(v)-128),0,255) |
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#define YUV_TO_B_INT16(y,u,v) clamp((y) + muldiv65536(116130,(u)-128),0,255) |
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#define SHIFT 6 |
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#define MULT (1<<6) |
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#define X(x) ((int)((x)*(1<<(SHIFT+8)) + 0.5)) |
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static int16_t jfif_matrix[][4] = { |
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{ 0, 0, -8192, -8192 }, |
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{ 16384, 0, 0, 0 }, |
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{ 0, 16384, 16384, 16384 }, |
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{ 0, 0, -5638, 29032 }, |
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{ 0, 22970, -11700, 0 }, |
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{ 0, 0, 0, 0 } |
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}; |
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static void |
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colorspace_argb_test (OilTest *test) |
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{ |
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int16_t *data = oil_test_get_source_data (test, OIL_ARG_SRC2); |
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memcpy (data, jfif_matrix, 4*2*6); |
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} |
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OIL_DEFINE_CLASS_FULL (colorspace_argb, "uint32_t *d, uint32_t *s, int16_t *s2_24, int n", colorspace_argb_test); |
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static void |
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colorspace_argb_ref (uint32_t *dest, const uint32_t *src, const int16_t *matrix, int n) |
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{ |
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int i; |
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|
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for(i=0;i<n;i++){ |
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int sa = (oil_argb_A(src[i])<<SHIFT) + matrix[0*4+0]; |
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int sr = (oil_argb_R(src[i])<<SHIFT) + matrix[0*4+1]; |
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int sg = (oil_argb_G(src[i])<<SHIFT) + matrix[0*4+2]; |
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int sb = (oil_argb_B(src[i])<<SHIFT) + matrix[0*4+3]; |
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int da, dr, dg, db; |
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|
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#define MUL(a,b) (((a)*(b))>>16) |
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da = (MUL(sa,matrix[1*4+0]) + MUL(sr,matrix[2*4+0]) + MUL(sg,matrix[3*4+0]) + |
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MUL(sb,matrix[4*4+0]) + matrix[5*4+0] + 8)>>(2*SHIFT - 8); |
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dr = (MUL(sa,matrix[1*4+1]) + MUL(sr,matrix[2*4+1]) + MUL(sg,matrix[3*4+1]) + |
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MUL(sb,matrix[4*4+1]) + matrix[5*4+1] + 8)>>(2*SHIFT - 8); |
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dg = (MUL(sa,matrix[1*4+2]) + MUL(sr,matrix[2*4+2]) + MUL(sg,matrix[3*4+2]) + |
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MUL(sb,matrix[4*4+2]) + matrix[5*4+2] + 8)>>(2*SHIFT - 8); |
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db = (MUL(sa,matrix[1*4+3]) + MUL(sr,matrix[2*4+3]) + MUL(sg,matrix[3*4+3]) + |
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MUL(sb,matrix[4*4+3]) + matrix[5*4+3] + 8)>>(2*SHIFT - 8); |
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dest[i] = oil_argb(da, dr, dg, db); |
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} |
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|
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} |
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OIL_DEFINE_IMPL_REF (colorspace_argb_ref, colorspace_argb); |
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123 |
|
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|
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static void |
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ayuv2argb_u8_ref (uint8_t *argb, const uint8_t *ayuv, int n) |
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{ |
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int i; |
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|
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for(i=0;i<n;i++){ |
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argb[0] = ayuv[0]; |
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argb[1] = YUV_TO_R_INT8(ayuv[1], ayuv[2], ayuv[3]); |
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argb[2] = YUV_TO_G_INT8(ayuv[1], ayuv[2], ayuv[3]); |
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argb[3] = YUV_TO_B_INT8(ayuv[1], ayuv[2], ayuv[3]); |
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argb+=4; |
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ayuv+=4; |
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} |
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|
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} |
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OIL_DEFINE_IMPL_REF (ayuv2argb_u8_ref, ayuv2argb_u8); |
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|
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|
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|
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|
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#ifdef __SYMBIAN32__ |
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|
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OilFunctionClass* __oil_function_class_ayuv2argb_u8() { |
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return &_oil_function_class_ayuv2argb_u8; |
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} |
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#endif |
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|
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#ifdef __SYMBIAN32__ |
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|
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OilFunctionClass* __oil_function_class_colorspace_argb() { |
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return &_oil_function_class_colorspace_argb; |
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} |
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#endif |
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|
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|
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|
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#ifdef __SYMBIAN32__ |
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|
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OilFunctionImpl* __oil_function_impl_colorspace_argb_ref() { |
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return &_oil_function_impl_colorspace_argb_ref; |
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} |
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#endif |
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|
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#ifdef __SYMBIAN32__ |
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|
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OilFunctionImpl* __oil_function_impl_ayuv2argb_u8_ref() { |
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return &_oil_function_impl_ayuv2argb_u8_ref; |
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} |
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#endif |
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#ifdef __SYMBIAN32__ |
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EXPORT_C void** _oil_function_class_ptr_ayuv2argb_u8 () { |
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oil_function_class_ptr_ayuv2argb_u8 = __oil_function_class_ayuv2argb_u8(); |
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return &oil_function_class_ptr_ayuv2argb_u8->func; |
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} |
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#endif |
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#ifdef __SYMBIAN32__ |
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EXPORT_C void** _oil_function_class_ptr_colorspace_argb () { |
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oil_function_class_ptr_colorspace_argb = __oil_function_class_colorspace_argb(); |
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return &oil_function_class_ptr_colorspace_argb->func; |
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} |
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#endif |
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