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[w3m-dev 03935] Re: clear image

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* w3mimg/fb/fb.c (fb_get_packed_color): added
	(fb_image_pset): use fb_get_packed_color
	(fb_image_fill): use fb_get_packed_color
	(fb_clear): use tmp to store pixels
From: Hiroyuki Ito <hito@crl.go.jp>
This commit is contained in:
Fumitoshi UKAI
2003-07-09 15:02:28 +00:00
parent d334c03205
commit 6d3c0f1d40
2 changed files with 48 additions and 30 deletions
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68
w3mimg/fb/fb.c
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@@ -1,4 +1,4 @@
/* $Id: fb.c,v 1.13 2003/07/08 17:30:37 ukai Exp $ */
/* $Id: fb.c,v 1.14 2003/07/09 15:02:28 ukai Exp $ */
/**************************************************************************
fb.c 0.3 Copyright (C) 2002, hito
**************************************************************************/
@@ -49,6 +49,7 @@ static int fb_cmap_set(int fbfp, struct fb_cmap *cmap);
static int fb_cmap_get(int fbfp, struct fb_cmap *cmap);
static int fb_cmap_init(void);
static int fb_get_cmap_index(int r, int g, int b);
static unsigned long fb_get_packed_color(int r, int g, int b);
static struct fb_fix_screeninfo fscinfo;
static struct fb_var_screeninfo vscinfo;
@@ -214,16 +215,7 @@ fb_image_pset(FB_IMAGE * image, int x, int y, int r, int g, int b)
|| y >= image->height)
return;
if (pixel_size == 1) {
work = fb_get_cmap_index(r, g, b);
}
else {
work =
((r >> (CHAR_BIT - vscinfo.red.length)) << vscinfo.red.offset) +
((g >> (CHAR_BIT - vscinfo.green.length)) << vscinfo.green.
offset) +
((b >> (CHAR_BIT - vscinfo.blue.length)) << vscinfo.blue.offset);
}
work = fb_get_packed_color(r, g, b);
memcpy(image->data + image->rowstride * y + pixel_size * x, &work,
pixel_size);
}
@@ -237,16 +229,7 @@ fb_image_fill(FB_IMAGE * image, int r, int g, int b)
if (image == NULL || is_open != TRUE)
return;
if (pixel_size == 1) {
work = fb_get_cmap_index(r, g, b);
}
else {
work =
((r >> (CHAR_BIT - vscinfo.red.length)) << vscinfo.red.offset) +
((g >> (CHAR_BIT - vscinfo.green.length)) << vscinfo.green.
offset) +
((b >> (CHAR_BIT - vscinfo.blue.length)) << vscinfo.blue.offset);
}
work = fb_get_packed_color(r, g, b);
for (offset = 0; offset < image->len; offset += pixel_size) {
memcpy(image->data + offset, &work, pixel_size);
@@ -368,8 +351,9 @@ fb_height(void)
int
fb_clear(int x, int y, int w, int h, int r, int g, int b)
{
unsigned long work;
int i, j, offset_fb;
static int rr = -1, gg = -1, bb = -1;
static char *tmp = NULL;
if (is_open != TRUE || x > fb_width() || y > fb_height())
return 1;
@@ -378,21 +362,47 @@ fb_clear(int x, int y, int w, int h, int r, int g, int b)
if (y + h > fb_height())
h = fb_height() - y;
if (tmp == NULL) {
tmp = malloc(fscinfo.line_length);
if (tmp == NULL)
return 1;
}
if (rr != r || gg != g || bb != b) {
unsigned long work;
int ww = fb_width();
work = fb_get_packed_color(r, g, b);
for (i = 0; i < ww; i++)
memcpy(tmp + pixel_size * i, &work, pixel_size);
rr = r;
gg = g;
bb = b;
}
offset_fb = fscinfo.line_length * y + pixel_size * x;
work = ((r >> (CHAR_BIT - vscinfo.red.length)) << vscinfo.red.offset) +
((g >> (CHAR_BIT - vscinfo.green.length)) << vscinfo.green.offset) +
((b >> (CHAR_BIT - vscinfo.blue.length)) << vscinfo.blue.offset);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++)
memcpy(buf + offset_fb + pixel_size * j, &work, pixel_size);
memcpy(buf + offset_fb, tmp, pixel_size * w);
offset_fb += fscinfo.line_length;
}
return 0;
}
/********* static functions **************/
static
int
static unsigned long
fb_get_packed_color(int r, int g, int b)
{
if (pixel_size == 1) {
return fb_get_cmap_index(r, g, b);
}
else {
return
((r >> (CHAR_BIT - vscinfo.red.length)) << vscinfo.red.offset) +
((g >> (CHAR_BIT - vscinfo.green.length)) << vscinfo.green.
offset) +
((b >> (CHAR_BIT - vscinfo.blue.length)) << vscinfo.blue.offset);
}
}
static int
fb_get_cmap_index(int r, int g, int b)
{
int work;