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74 lines
2.3 KiB
74 lines
2.3 KiB
/*
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(C) 2001 Nemosoft Unv. nemosoft@smcc.demon.nl
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* 'Viewport' conversion routines. These functions convert from one colour
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space to another, taking into account that the source image has a smaller
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size than the view, and is placed inside the view:
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+-------view.x------------+
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| +---image.x---+ |
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| | | |
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| | | |
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| +-------------+ |
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+-------------------------+
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The image should always be smaller than the view. The offset (top-left
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corner of the image) should be precomputed, so you can place the image
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anywhere in the view.
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The functions take these parameters:
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- width image width (in pixels)
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- height image height (in pixels)
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- plus view width (in pixels)
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*src pointer at start of image
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*dst pointer at offset (!) in view
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*/
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#ifndef VCVT_H
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#define VCVT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Functions in vcvt_i386.S/vcvt_c.c */
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/* 4:2:0 YUV interlaced to RGB/BGR */
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void vcvt_420i_bgr24(int width, int height, int plus, void *src, void *dst);
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void vcvt_420i_rgb24(int width, int height, int plus, void *src, void *dst);
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void vcvt_420i_bgr32(int width, int height, int plus, void *src, void *dst);
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void vcvt_420i_rgb32(int width, int height, int plus, void *src, void *dst);
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/* Go from 420i to other yuv formats */
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void vcvt_420i_420p(int width, int height, int plus, void *src, void *dsty, void *dstu, void *dstv);
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void vcvt_420i_yuyv(int width, int height, int plus, void *src, void *dst);
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#if 0
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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