diff options
Diffstat (limited to 'asclock/rot.c')
| -rw-r--r-- | asclock/rot.c | 255 |
1 files changed, 0 insertions, 255 deletions
diff --git a/asclock/rot.c b/asclock/rot.c deleted file mode 100644 index f79586d0e..000000000 --- a/asclock/rot.c +++ /dev/null @@ -1,255 +0,0 @@ -#include "asclock.h" - -static GdkImage *act_img; - -static int -match_color (int red, int green, int blue) -{ - GdkColor *colors; - guint sum, max; - gint rdiff, gdiff, bdiff; - gint i, index; - - colors = cmap->colors; - max = 3 * (65536); - index = -1; - - for (i = 0; i < cmap->size; i++) - { - rdiff = (red - colors[i].red); - gdiff = (green - colors[i].green); - bdiff = (blue - colors[i].blue); - - sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff); - - if (sum < max) - { - index = i; - max = sum; - } - } - - return index; -} - - - -static void get_pixel(int x, int y, int *r, int *g, int *b) -{ - guint32 pixel; - - pixel = gdk_image_get_pixel(act_img, x, y); - - if(visual_depth>=15) { - *r = (pixel & visual->red_mask) >> visual->red_shift; - *g = (pixel & visual->green_mask) >> visual->green_shift; - *b = (pixel & visual->blue_mask) >> visual->blue_shift; - } - else { - *r = cmap->colors[pixel].red / 256; - *g = cmap->colors[pixel].green / 256; - *b = cmap->colors[pixel].blue / 256; - } - - -} - -static void set_pixel(int x, int y, double weight, int r, int g, int b) -{ - guint32 old, pixel; - int or, og, ob; - if(weight<0.99) - { - old = gdk_image_get_pixel(clock_img, x, y); - - if(visual_depth>=15) - { - or = (old & visual->red_mask) >> visual->red_shift; - og = (old & visual->green_mask) >> visual->green_shift; - ob = (old & visual->blue_mask) >> visual->blue_shift; - } - else - { - or = cmap->colors[old].red / 256; - og = cmap->colors[old].green / 256; - ob = cmap->colors[old].blue / 256; - } - - r = (int) or * (1-weight) + r*weight; - if(r>0xff) r=0xff; - - g = (int) og * (1-weight) + g*weight; - if(g>0xff) g=0xff; - - b = (int) ob * (1-weight) + b*weight; - if(b>0xff) b=0xff; - } - - if(visual_depth>=15) - pixel = (r << visual->red_shift) + (g << visual->green_shift) + (b << visual->blue_shift); - else - pixel = match_color(r*256, g*256, b*256); - gdk_image_put_pixel(clock_img, x, y, pixel); - -} - -void rotate(GdkImage *img, char *map, int center_x, int center_y, int rot_x, int rot_y, double alpha) -{ - int left, right, bottom, top; - int done, miss, missed=0; - int goup; - int goleft; - - int cols, rows; - int x, y; - double xoff, yoff; - int rad; - - act_img = img; - - alpha = - alpha *3.14159/180.0; - - cols = img->width; - rows = img->height; - - rad = (int) ceil(sqrt(2)* ((cols>rows) ? cols : rows)); - - xoff = center_x; - yoff = center_y; - - left = center_x - rad; - if(left < 0) left = 0; - right = center_x + rad; - if(right>clock_img->width) right = clock_img->width; - bottom = center_y - rad; - if(bottom<0) bottom = 0; - top = center_y + rad; - if(top>clock_img->height) top = clock_img->height; - - done = FALSE; - miss=FALSE; - - goup=TRUE; - goleft=TRUE; - x = center_x; - y = center_y; - while(!done) - { - double ex, ey; - double weight; - int oldx, oldy; - - /* transform into old coordinate system */ - ex = rot_x-0.25 + ( (x-xoff) * cos(alpha) - (y-yoff) * sin(alpha) ); - ey = rot_y-0.25 + ( (x-xoff) * sin(alpha) + (y-yoff) * cos(alpha) ); - oldx = floor(ex); - oldy = floor(ey); - - if( (oldx>=-1) && (oldx<cols) && (oldy>=-1) && (oldy<rows) ) - { - float tr, tg, tb; - float af, bf, cf, df; - - /* calculate the fractile part of the according pixel */ - df = (ex-oldx)*(ey-oldy); - cf = (oldx+1-ex)*(ey-oldy); - bf = (ex-oldx)*(oldy+1-ey); - af = (oldx+1-ex)*(oldy+1-ey); - - tr = 0.0; tg = 0.0; tb = 0.0; - weight = 0.0; - if( (oldx>=0) && (oldy>=0)) - if(map[oldy*cols+oldx] ) { - int srcr, srcg, srcb; - get_pixel(oldx, oldy, &srcr, &srcg, &srcb); - if(!((srcr==255) && (srcg==0) && (srcb==255))) - { - tr += af * srcr; - tg += af * srcg; - tb += af * srcb; - weight += af; - } - } - if( (oldx+1 < cols) && (oldy>=0)) - if( map[oldy*cols+oldx+1] ) { - int srcr, srcg, srcb; - get_pixel(oldx+1, oldy, &srcr, &srcg, &srcb); - if(!((srcr==255) && (srcg==0) && (srcb==255)) ) - { - tr += bf * srcr; - tg += bf * srcg; - tb += bf * srcb; - weight += bf; - } - } - if( (oldy+1 < rows) && (oldx >=0)) - if( map[(oldy+1)*cols+oldx] ) { - int srcr, srcg, srcb; - get_pixel(oldx, oldy+1, &srcr, &srcg, &srcb); - - if(!((srcr==255) && (srcg==0) && (srcb==255)) ) - { - tr += cf * srcr; - tg += cf * srcg; - tb += cf * srcb; - weight += cf; - } - } - if( (oldx+1 < cols) && (oldy+1 < rows) ) - if( map[(oldy+1)*cols+oldx+1] ) { - int srcr, srcg, srcb; - get_pixel(oldx+1, oldy+1, &srcr, &srcg, &srcb); - - if(!((srcr==255) && (srcg==0) && (srcb==255)) ) - { - tr += df * srcr; - tg += df * srcg; - tb += df * srcb; - weight += df; - } - } - - if((x>=0) && (y>=0) && (x<clock_img->width) && (y<clock_img->height) ) - set_pixel(x, y, weight, (int)tr, (int)tg, (int)tb); - missed = 0; - miss = FALSE; - } - else - { - miss = TRUE; - missed++; - if(missed==15) - { - if(goup) { - goup=FALSE; - goleft=FALSE; - x = center_x; - y = center_y; - } - else - done = TRUE; - } - } - - if(miss && (missed==1)) { - goleft = !goleft; - if(goup) - y--; - else - y++; - - } - else { - if(goleft) - x--; - else - x++; - } - } -} - - - - - - |