mirror of
https://github.com/netsurf-browser/netsurf
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88 lines
2.0 KiB
C
88 lines
2.0 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 James Bursa <bursa@users.sourceforge.net>
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*/
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/**
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* This is just a temporary implementation using the JPEG renderer
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* available in some versions of RISC OS.
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*/
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#include <assert.h>
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#include <string.h>
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#include <stdlib.h>
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#include "netsurf/content/content.h"
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#include "netsurf/riscos/jpeg.h"
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#include "netsurf/utils/utils.h"
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#include "oslib/jpeg.h"
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void jpeg_create(struct content *c)
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{
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c->data.jpeg.data = xcalloc(0, 1);
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c->data.jpeg.length = 0;
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}
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void jpeg_process_data(struct content *c, char *data, unsigned long size)
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{
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c->data.jpeg.data = xrealloc(c->data.jpeg.data, c->data.jpeg.length + size);
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memcpy(c->data.jpeg.data + c->data.jpeg.length, data, size);
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c->data.jpeg.length += size;
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c->size += size;
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}
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int jpeg_convert(struct content *c, unsigned int width, unsigned int height)
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{
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os_error *error;
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int w, h;
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error = xjpeginfo_dimensions(c->data.jpeg.data, (int) c->data.jpeg.length,
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0, &w, &h, 0, 0, 0);
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if (error != 0)
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return 1;
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c->width = w;
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c->height = h;
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c->title = xcalloc(100, 1);
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sprintf(c->title, "JPEG image (%ux%u, %lu bytes)", w, h, c->data.jpeg.length);
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c->status = CONTENT_STATUS_DONE;
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return 0;
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}
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void jpeg_revive(struct content *c, unsigned int width, unsigned int height)
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{
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}
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void jpeg_reformat(struct content *c, unsigned int width, unsigned int height)
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{
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}
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void jpeg_destroy(struct content *c)
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{
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xfree(c->data.jpeg.data);
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xfree(c->title);
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}
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void jpeg_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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{
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os_factors factors;
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factors.xmul = width;
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factors.ymul = height;
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factors.xdiv = c->width * 2;
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factors.ydiv = c->height * 2;
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xjpeg_plot_scaled((jpeg_image *) c->data.jpeg.data,
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x, y - height,
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&factors, (int) c->data.jpeg.length,
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jpeg_SCALE_DITHERED);
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}
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