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https://github.com/netsurf-browser/netsurf
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15537fb20d
Animation support, not yet optimised. svn path=/import/netsurf/; revision=641
68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/*
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* This file is part of NetSurf, http://netsurf.sourceforge.net/
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* Licensed under the GNU General Public License,
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* http://www.opensource.org/licenses/gpl-license
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* Copyright 2003 Philip Pemberton <philpem@users.sourceforge.net>
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* Copyright 2004 Richard Wilson <not_ginger_matt@hotmail.com>
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*/
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#ifndef _NETSURF_RISCOS_GIF_H_
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#define _NETSURF_RISCOS_GIF_H_
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#include "oslib/osspriteop.h"
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struct content;
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struct content_gif_data {
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unsigned long buffer_pos;
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/* The sprite area containing the 8bpp frames.
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*/
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osspriteop_area *sprite_area;
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/* The sprite header of the current 32bpp image.
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*/
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osspriteop_header *buffer_header;
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/** The current frame number of the GIF to display, [0...(max-1)]
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*/
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unsigned int current_frame;
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/** The current frame that we hold a 32bpp version of [0...(max-1)]
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*/
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unsigned int expanded_frame;
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/** Whether the GIF should be animated
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*/
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bool animate_gif;
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/** Whether the GIF should loop
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*/
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bool loop_gif;
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/** The number of cs unprocessed as the next transition has
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not yet occurred.
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*/
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unsigned int remainder_time;
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/** The total number of frames
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*/
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unsigned int total_frames;
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/** An array of times (in cs) for the frame transitions between each frame
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*/
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unsigned int *frame_transitions;
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};
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void nsgif_init(void);
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void nsgif_create(struct content *c, const char *params[]);
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int nsgif_convert(struct content *c, unsigned int width, unsigned int height);
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void nsgif_destroy(struct content *c);
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void nsgif_redraw(struct content *c, long x, long y,
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unsigned long width, unsigned long height,
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long clip_x0, long clip_y0, long clip_x1, long clip_y1,
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float scale);
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#endif
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