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|
Description: code to convert from waili to GDK images and back
Author: mennucc1@debian.org
--- /dev/null
+++ waili-19990723/include/waili/gtk.h
@@ -0,0 +1,67 @@
+
+#ifndef __WAILI_GTK_H__
+#define __WAILI_GTK_H__
+
+#include <waili/Image.h>
+
+#ifndef GDK_PIXBUF_MAJOR
+#error you need to install gtk 2.0 or gdk-pixbuf, and include <gdk-pixbuf/gdk-pixbuf.h> to use this header
+#endif
+
+Image *gdk_to_waili(GdkPixbuf *src)
+{
+ gchar * data = gdk_pixbuf_get_pixels(src);
+ int ch,channels=gdk_pixbuf_get_n_channels(src),
+ stride=gdk_pixbuf_get_rowstride(src),
+ w= gdk_pixbuf_get_width(src), h=gdk_pixbuf_get_height(src), c ,r ;
+
+ Image * dst = new Image(w,h,ch);
+ for (r = 0; r < h; r++)
+ for (c = 0; c < w; c++)
+ for (ch = 0; ch < channels; ch++) {
+ (*dst)(c, r, ch) = (PixType)
+ ( data[ch+ c*channels + stride*r]-128);
+ }
+ return dst;
+}
+GdkPixbuf *waili_to_gdk(Image *src)
+{
+ int ch,channels=src->GetChannels(),
+ w=src->GetCols(), h=src->GetRows(), c ,r ;
+ GdkPixbuf *dst=gdk_pixbuf_new
+ (GDK_COLORSPACE_RGB,//GdkColorspace colorspace,
+ (channels==4?1:0),//gboolean has_alpha,
+ 8,//int bits_per_sample,
+ w,//int width,
+ h);//int height);
+ gchar * data = gdk_pixbuf_get_pixels(dst);
+
+ int stride=gdk_pixbuf_get_rowstride(src);
+
+ switch(channels) {
+ case 1:
+ for (r = 0; r < h; r++)
+ for (c = 0; c < w; c++) {
+ data[ c + stride*r]=
+ data[ c + stride*r+1]=
+ data[ c + stride*r+2]=
+ CLAMP((*src)(c, r, 0) +128,0,255);
+ }
+ break;
+ case 3:
+ case 4:
+
+ for (r = 0; r < h; r++)
+ for (c = 0; c < w; c++)
+ for (ch = 0; ch < channels; ch++) {
+ data[ch+ c*channels + stride*r]=
+ CLAMP((*src)(c, r, ch) +128,0,255);
+
+ }
+ break;
+ default: abort();
+ }
+ return dst;
+}
+
+#endif // __WAILI_GTK_H__
|
