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[project @ 2002-10-12 13:05:16 by bursa]

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Speed improvements in layout_line() (call Font_ScanString much less).

svn path=/import/netsurf/; revision=43
This commit is contained in:
James Bursa 2002-10-12 13:05:16 +00:00
parent 390fb8fb8d
commit f459052ef8
4 changed files with 42 additions and 14 deletions
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5
makefile
View File

@ -1,4 +1,4 @@
# $Id: makefile,v 1.5 2002/10/08 11:15:29 bursa Exp $
# $Id: makefile,v 1.6 2002/10/12 13:05:16 bursa Exp $
all: !NetSurf/!RunImage,ff8
clean:
@ -38,3 +38,6 @@ riscos/objs-riscos/%.o: riscos/%.c $(HEADERS)
desktop/objs-riscos/%.o: desktop/%.c $(HEADERS)
$(CC) $(FLAGS) -o $@ -c $<
netsurf.zip: !NetSurf/!RunImage,ff8
riscos-zip -9vr, netsurf.zip !NetSurf

16
render/layout.c
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@ -1,5 +1,5 @@
/**
* $Id: layout.c,v 1.20 2002/10/08 09:38:29 bursa Exp $
* $Id: layout.c,v 1.21 2002/10/12 13:05:16 bursa Exp $
*/
#include <assert.h>
@ -13,6 +13,7 @@
#include "netsurf/render/box.h"
#include "netsurf/render/utils.h"
#include "netsurf/render/layout.h"
#include "netsurf/utils/log.h"
#define DEBUG_LAYOUT
@ -395,16 +396,9 @@ struct box * layout_line(struct box * first, unsigned long width, unsigned long
} else {
/* fit as many words as possible */
assert(space != 0);
while (xp + w < x1 - x0 && space2 != 0) {
/* fprintf(stderr, "%li + %li = %li < %li = %li - %li\n", */
/* xp, w, xp + w, x1 - x0, x1, x0); */
space = space2;
wp = w;
space2 = strchr(space + 1, ' ');
if (space2 == 0)
space2 = c->text + c->length;
w = font_width(c->font, c->text, space2 - c->text);
}
space = font_split(c->font, c->text, c->length, x1 - x0 - xp, &wp);
LOG(("'%.*s' %lu %lu (%c) %lu", c->length, c->text,
x1 - x0, space - c->text, *space, wp));
c2 = memcpy(xcalloc(1, sizeof(struct box)), c, sizeof(struct box));
c2->text = xstrdup(space + 1);
c2->length = c->length - ((space + 1) - c->text);

31
riscos/font.c
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@ -1,5 +1,5 @@
/**
* $Id: font.c,v 1.5 2002/10/08 11:15:29 bursa Exp $
* $Id: font.c,v 1.6 2002/10/12 13:05:16 bursa Exp $
*/
#include <assert.h>
@ -204,3 +204,32 @@ void font_close(struct font_data *data)
free(data);
}
char * font_split(struct font_data *data, const char * text, unsigned int length,
unsigned int width, unsigned int *used_width)
{
os_error *error;
font_scan_block block;
char *split;
block.space.x = block.space.y = block.letter.x = block.letter.y = 0;
block.split_char = ' ';
error = xfont_scan_string(data->handle, text,
font_GIVEN_BLOCK | font_GIVEN_FONT | font_KERN | font_GIVEN_LENGTH,
ro_x_units(width) * 400, 0x7fffffff,
&block,
0,
length,
&split,
used_width, 0, 0);
if (error != 0) {
fprintf(stderr, "%s\n", error->errmess);
die("font_scan_string failed");
}
*used_width = browser_x_units(*used_width / 400);
return split;
}

4
riscos/font.h
View File

@ -1,5 +1,5 @@
/**
* $Id: font.h,v 1.3 2002/10/08 11:15:29 bursa Exp $
* $Id: font.h,v 1.4 2002/10/12 13:05:16 bursa Exp $
*/
#ifndef _NETSURF_RISCOS_FONT_H_
@ -40,5 +40,7 @@ void font_position_in_string(const char* text, struct font_data *font,
struct font_set *font_new_set(void);
struct font_data *font_open(struct font_set *set, struct css_style *style);
void font_free_set(struct font_set *set);
char * font_split(struct font_data *data, const char * text, unsigned int length,
unsigned int width, unsigned int *used_width);
#endif