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Explicitly request a 24-bit depth buffer in FLTK port.

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See http://solvespace.com/forum.pl?action=viewthread&parent=417.
This commit is contained in:
whitequark 2015-03-22 16:55:18 +03:00
parent 14690e6e42
commit 024a26bf57
1 changed files with 19 additions and 0 deletions
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19
src/fltk/fltkmain.cpp
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@ -34,6 +34,10 @@
#include <FL/gl.h> #include <FL/gl.h>
#include <FL/names.h> #include <FL/names.h>
#ifndef __APPLE__
#include <GL/glx.h>
#endif
#include "solvespace.h" #include "solvespace.h"
#define fl_snprintf snprintf #define fl_snprintf snprintf
@ -368,7 +372,22 @@ public:
Graphics_Gl_Window(int x, int y, int w, int h) Graphics_Gl_Window(int x, int y, int w, int h)
: Fl_Gl_Window(x, y, w, h) : Fl_Gl_Window(x, y, w, h)
{ {
#ifndef __APPLE__
/* Explicitly request a 24-bit depth buffer on X11.
Otherwise, a 8-bit depth buffer might be selected, which
is too shallow and will result in rendering artifacts. */
static int alist[] = {
GLX_RGBA,
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_DEPTH_SIZE, 24,
None
};
mode(alist);
#else
mode(FL_RGB | FL_DOUBLE); mode(FL_RGB | FL_DOUBLE);
#endif
} }
virtual int handle(int event) { virtual int handle(int event) {