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/*
* Copyright (C) 2012 Russell King.
*
* Based in part on code from the Intel Xorg driver.
*
* Unaccelerated drawing functions for Vivante GPU. These prepare
* access to the drawable prior to passing on the call to the Xorg
* Server's fb layer (or pixman layer.)
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "glyph_extents.h"
void GlyphExtents(int nlist, GlyphListPtr list, GlyphPtr *glyphs,
BoxPtr extents)
{
int x1, y1, x2, y2, n, x, y;
GlyphPtr glyph;
x = y = 0;
extents->x1 = extents->y1 = MAXSHORT;
extents->x2 = extents->y2 = MINSHORT;
while (nlist--) {
x += list->xOff;
y += list->yOff;
n = list->len;
list++;
while (n--) {
glyph = *glyphs++;
x1 = x - glyph->info.x;
if (x1 < MINSHORT)
x1 = MINSHORT;
y1 = y - glyph->info.y;
if (y1 < MINSHORT)
y1 = MINSHORT;
x2 = x1 + glyph->info.width;
if (x2 > MAXSHORT)
x2 = MAXSHORT;
y2 = y1 + glyph->info.height;
if (y2 > MAXSHORT)
y2 = MAXSHORT;
if (x1 < extents->x1)
extents->x1 = x1;
if (x2 > extents->x2)
extents->x2 = x2;
if (y1 < extents->y1)
extents->y1 = y1;
if (y2 > extents->y2)
extents->y2 = y2;
x += glyph->info.xOff;
y += glyph->info.yOff;
}
}
}
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