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[project @ 2004-03-03 23:17:15 by jmb]

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Fix scaled jpeg bug, with any luck...

svn path=/import/netsurf/; revision=581
This commit is contained in:
John Mark Bell 2004-03-03 23:17:15 +00:00
parent 7fd5b22eb2
commit 303e09a6c2
1 changed files with 13 additions and 8 deletions
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21
riscos/save_draw.c
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@ -397,23 +397,28 @@ void add_jpeg(struct content *content, struct box *box,
drawfile_object *dro = xcalloc(8+60+((content->data.jpeg.length+3)/4*4), sizeof(char));
drawfile_jpeg *dj = xcalloc(60+((content->data.jpeg.length+3)/4*4), sizeof(char));
int flags;
dj->bbox.x0 = x;
dj->bbox.y0 = y-((box->padding[TOP] + box->height + box->padding[BOTTOM])*512);
dj->bbox.x1 = x+((box->padding[LEFT] + box->width + box->padding[RIGHT])*512);
dj->bbox.y1 = y;
dj->bbox.x0 = x+(box->padding[LEFT]*512);
dj->bbox.y0 = y-((box->padding[TOP] + box->height)*512);
dj->bbox.x1 = x+((box->padding[LEFT] + box->width)*512);
dj->bbox.y1 = y-(box->padding[TOP]*512);
xjpeginfo_dimensions((jpeg_image const*)content->data.jpeg.data,
(int)content->data.jpeg.length,
0, &dj->width, &dj->height,
&flags, &dj->width, &dj->height,
&dj->xdpi, &dj->ydpi, 0);
dj->width *= 512;
dj->height *= 512;
dj->trfm.entries[0][0] = 1 << 16;
if (flags & 4) { /* pixel density is a ratio */
dj->ydpi = 90 * (dj->ydpi / dj->xdpi);
dj->xdpi = 90;
}
dj->trfm.entries[0][0] = (dj->width*256) / ((dj->bbox.x1-dj->bbox.x0)/256);
dj->trfm.entries[0][1] = 0;
dj->trfm.entries[1][0] = 0;
dj->trfm.entries[1][1] = 1 << 16;
dj->trfm.entries[2][0] = x;
dj->trfm.entries[1][1] = (dj->height*256) / ((dj->bbox.y1-dj->bbox.y0)/256);
dj->trfm.entries[2][0] = dj->bbox.x0;
dj->trfm.entries[2][1] = dj->bbox.y0;
dj->len = content->data.jpeg.length;
memcpy((char*)&dj->image, content->data.jpeg.data, (unsigned)dj->len);