Author: manolo
Date: 2012-05-16 13:50:01 -0700 (Wed, 16 May 2012)
New Revision: 9506
Log:
Accelerate the mandelbrot demo on the Mac platform by drawing by blocks of 100
lines.
Modified:
branches/branch-3.0/test/mandelbrot.cxx
branches/branch-3.0/test1/mandelbrot.cxx
Modified: branches/branch-3.0/test/mandelbrot.cxx
===================================================================
--- branches/branch-3.0/test/mandelbrot.cxx 2012-05-16 20:23:20 UTC (rev
9505)
+++ branches/branch-3.0/test/mandelbrot.cxx 2012-05-16 20:50:01 UTC (rev
9506)
@@ -94,14 +94,22 @@
set_idle();
}
+#ifdef __APPLE__
+const int slice = 100; // plot drawn by blocks of slice lines
+#else
+const int slice = 1;
+#endif
+
int Drawing_Area::idle() {
if (!window()->visible()) return 0;
- if (drawn < nextline) {
+ int rest = H - drawn;
+ if (rest > slice) rest = slice;
+ if (rest && drawn + rest <= nextline) {
window()->make_current();
int yy = drawn+y()+4;
if (yy >= sy && yy <= sy+sh) erase_box();
- fltk3::draw_image_mono(buffer+drawn*W,x()+3,yy,W,1,1,W);
- drawn++;
+ fltk3::draw_image_mono(buffer+drawn*W,x()+3,yy,W,rest,1,W);
+ drawn+=rest;
return 1;
}
if (nextline < H) {
@@ -128,9 +136,8 @@
p++;
}
nextline++;
- return nextline < H;
}
- return 0;
+ return drawn < H;
}
void Drawing_Area::erase_box() {
Modified: branches/branch-3.0/test1/mandelbrot.cxx
===================================================================
--- branches/branch-3.0/test1/mandelbrot.cxx 2012-05-16 20:23:20 UTC (rev
9505)
+++ branches/branch-3.0/test1/mandelbrot.cxx 2012-05-16 20:50:01 UTC (rev
9506)
@@ -94,14 +94,22 @@
set_idle();
}
+#ifdef __APPLE__
+const int slice = 100; // plot drawn by blocks of slice lines
+#else
+const int slice = 1;
+#endif
+
int Drawing_Area::idle() {
if (!window()->visible()) return 0;
- if (drawn < nextline) {
+ int rest = H - drawn;
+ if (rest > slice) rest = slice;
+ if (rest && drawn + rest <= nextline) {
window()->make_current();
int yy = drawn+y()+4;
if (yy >= sy && yy <= sy+sh) erase_box();
- fl_draw_image_mono(buffer+drawn*W,x()+3,yy,W,1,1,W);
- drawn++;
+ fl_draw_image_mono(buffer+drawn*W,x()+3,yy,W,rest,1,W);
+ drawn+=rest;
return 1;
}
if (nextline < H) {
@@ -128,9 +136,8 @@
p++;
}
nextline++;
- return nextline < H;
}
- return 0;
+ return drawn < H;
}
void Drawing_Area::erase_box() {
_______________________________________________
fltk-commit mailing list
[email protected]
http://lists.easysw.com/mailman/listinfo/fltk-commit
