diff options
Diffstat (limited to 'w3mimg/fb/fb.c')
| -rw-r--r-- | w3mimg/fb/fb.c | 68 |
1 files changed, 39 insertions, 29 deletions
diff --git a/w3mimg/fb/fb.c b/w3mimg/fb/fb.c index 7e87e9d..184872f 100644 --- a/w3mimg/fb/fb.c +++ b/w3mimg/fb/fb.c @@ -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; |