summaryrefslogtreecommitdiff
path: root/src/Fl_Gl_Overlay.cxx
diff options
context:
space:
mode:
Diffstat (limited to 'src/Fl_Gl_Overlay.cxx')
-rw-r--r--src/Fl_Gl_Overlay.cxx157
1 files changed, 77 insertions, 80 deletions
diff --git a/src/Fl_Gl_Overlay.cxx b/src/Fl_Gl_Overlay.cxx
index fd040abb0..1272c11a2 100644
--- a/src/Fl_Gl_Overlay.cxx
+++ b/src/Fl_Gl_Overlay.cxx
@@ -1,5 +1,5 @@
//
-// "$Id: Fl_Gl_Overlay.cxx,v 1.5.2.14 2001/01/22 15:13:39 easysw Exp $"
+// "$Id: Fl_Gl_Overlay.cxx,v 1.5.2.15 2001/03/14 17:20:01 spitzak Exp $"
//
// OpenGL overlay code for the Fast Light Tool Kit (FLTK).
//
@@ -20,21 +20,25 @@
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
-// Please report all bugs and problems to "fltk-bugs@fltk.org".
+// Please report all bugs and problems to "fltk-bugs@easysw.com".
//
#include <config.h>
#if HAVE_GL
#include <FL/Fl.H>
-#include <FL/Fl_Gl_Window.H>
#include <FL/x.H>
#include "Fl_Gl_Choice.H"
+#include <FL/Fl_Gl_Window.H>
#include <stdlib.h>
-#if HAVE_GL_OVERLAY
+#if !HAVE_GL_OVERLAY
+
+int Fl_Gl_Window::can_do_overlay() {return 0;}
+
+void Fl_Gl_Window::make_overlay() {overlay = this;}
-#if !defined(_WIN32) && !defined(WIN32)
+#else
// Methods on Fl_Gl_Window that create an overlay window. Because
// many programs don't need the overlay, this is seperated into this
@@ -51,11 +55,14 @@
// "faked" by drawing into the main layers. This is indicated by
// setting overlay == this.
+#ifndef WIN32
+////////////////////////////////////////////////////////////////
+// X version
+
extern XVisualInfo *fl_find_overlay_visual();
extern XVisualInfo *fl_overlay_visual;
extern Colormap fl_overlay_colormap;
extern unsigned long fl_transparent_pixel;
-static Fl_Gl_Choice overlay_choice;
extern uchar fl_overlay;
class _Fl_Gl_Overlay : public Fl_Gl_Window {
@@ -65,12 +72,6 @@ public:
_Fl_Gl_Overlay(int x, int y, int w, int h) :
Fl_Gl_Window(x,y,w,h) {
set_flag(INACTIVE);
- overlay_choice.vis = fl_overlay_visual;
- overlay_choice.colormap = fl_overlay_colormap;
- overlay_choice.r = 0;
- overlay_choice.d = 0;
- overlay_choice.o = 1;
- g = &overlay_choice;
}
};
@@ -88,91 +89,87 @@ void _Fl_Gl_Overlay::draw() {
}
void _Fl_Gl_Overlay::show() {
- if (shown()) {Fl_Gl_Window::show(); return;}
- fl_background_pixel = int(fl_transparent_pixel);
+ if (!shown()) {
+ fl_background_pixel = int(fl_transparent_pixel);
+ Fl_X::make_xid(this, fl_overlay_visual, fl_overlay_colormap);
+ fl_background_pixel = -1;
+ // find the outermost window to tell wm about the colormap:
+ Fl_Window *w = window();
+ for (;;) {Fl_Window *w1 = w->window(); if (!w1) break; w = w1;}
+ XSetWMColormapWindows(fl_display, fl_xid(w), &(Fl_X::i(this)->xid), 1);
+ context(fl_create_gl_context(fl_overlay_visual), 1);
+ valid(0);
+ }
Fl_Gl_Window::show();
- fl_background_pixel = -1;
- // find the outermost window to tell wm about the colormap:
- Fl_Window *w = window();
- for (;;) {Fl_Window *w1 = w->window(); if (!w1) break; w = w1;}
- XSetWMColormapWindows(fl_display, fl_xid(w), &(Fl_X::i(this)->xid), 1);
}
int Fl_Gl_Window::can_do_overlay() {
return fl_find_overlay_visual() != 0;
}
-#else // _WIN32:
-
-int Fl_Gl_Window::can_do_overlay() {
- Fl_Gl_Choice* choice = Fl_Gl_Choice::find(0,0);
- return (choice && (choice->pfd.bReserved & 15));
+void Fl_Gl_Window::make_overlay() {
+ if (overlay) return;
+ if (can_do_overlay()) {
+ _Fl_Gl_Overlay* o = new _Fl_Gl_Overlay(0,0,w(),h());
+ overlay = o;
+ add(*o);
+ o->show();
+ } else {
+ overlay = this; // fake the overlay
+ }
}
-extern int fl_overlay_depth;
-
-#endif
-
#else
+////////////////////////////////////////////////////////////////
+// WIN32 version:
-int Fl_Gl_Window::can_do_overlay() {return 0;}
-
-#endif
+//static COLORREF *palette;
+extern int fl_overlay_depth;
void Fl_Gl_Window::make_overlay() {
- if (!overlay) {
-#if HAVE_GL_OVERLAY
-#if defined(_WIN32) || defined(WIN32)
- HDC hdc = fl_private_dc(this, mode_,&g);
- GLXContext context = wglCreateLayerContext(hdc, 1);
- if (context) { // we found a usable overlay context
- if (fl_first_context) wglShareLists(fl_first_context, context);
- else fl_first_context = context;
- overlay = context;
- LAYERPLANEDESCRIPTOR pfd;
- wglDescribeLayerPlane(hdc, g->pixelformat, 1, sizeof(pfd), &pfd);
- if (!pfd.iPixelType) {
- ; // full-color overlay
- } else {
- fl_overlay_depth = pfd.cColorBits; // used by gl_color()
- if (fl_overlay_depth > 8) fl_overlay_depth = 8;
- COLORREF palette[256];
- int n = (1<<fl_overlay_depth)-1;
- // copy all colors except #0 into the overlay palette:
- for (int i = 0; i <= n; i++) {
- uchar r,g,b; Fl::get_color((Fl_Color)i,r,g,b);
- palette[i] = RGB(r,g,b);
- }
- // always provide black & white in the last 2 pixels:
- if (fl_overlay_depth < 8) {
- palette[n-1] = RGB(0,0,0);
- palette[n] = RGB(255,255,255);
- }
- // and use it:
- wglSetLayerPaletteEntries(hdc, 1, 1, n, palette+1);
- wglRealizeLayerPalette(hdc, 1, TRUE);
- }
- valid(0);
- return;
+ if (overlay) return;
+
+ GLContext context = fl_create_gl_context(this, g, 1);
+ if (!context) {overlay = this; return;} // fake the overlay
+
+ HDC hdc = Fl_X::i(this)->private_dc;
+ overlay = context;
+ LAYERPLANEDESCRIPTOR pfd;
+ wglDescribeLayerPlane(hdc, g->pixelformat, 1, sizeof(pfd), &pfd);
+ if (!pfd.iPixelType) {
+ ; // full-color overlay
+ } else {
+ fl_overlay_depth = pfd.cColorBits; // used by gl_color()
+ if (fl_overlay_depth > 8) fl_overlay_depth = 8;
+ COLORREF palette[256];
+ int n = (1<<fl_overlay_depth)-1;
+ // copy all colors except #0 into the overlay palette:
+ for (int i = 0; i <= n; i++) {
+ uchar r,g,b; Fl::get_color((Fl_Color)i,r,g,b);
+ palette[i] = RGB(r,g,b);
}
-#else
- if (can_do_overlay()) {
- _Fl_Gl_Overlay* o = new _Fl_Gl_Overlay(0,0,w(),h());
- overlay = o;
- add(*o);
- o->show();
- return;
+ // always provide black & white in the last 2 pixels:
+ if (fl_overlay_depth < 8) {
+ palette[n-1] = RGB(0,0,0);
+ palette[n] = RGB(255,255,255);
}
-#endif
-#endif
- overlay = this; // fake the overlay
+ // and use it:
+ wglSetLayerPaletteEntries(hdc, 1, 1, n, palette+1);
+ wglRealizeLayerPalette(hdc, 1, TRUE);
}
+ valid(0);
+ return;
}
+////////////////////////////////////////////////////////////////
+#endif
+
+#endif
+
void Fl_Gl_Window::redraw_overlay() {
if (!shown()) return;
make_overlay();
-#if !defined(_WIN32) && !defined(WIN32)
+#ifndef WIN32
if (overlay != this)
((Fl_Gl_Window*)overlay)->redraw();
else
@@ -184,8 +181,8 @@ void Fl_Gl_Window::make_overlay_current() {
make_overlay();
#if HAVE_GL_OVERLAY
if (overlay != this) {
-#if defined(_WIN32) || defined(WIN32)
- fl_set_gl_context(this, (GLXContext)overlay);
+#ifdef WIN32
+ fl_set_gl_context(this, (GLContext)overlay);
// if (fl_overlay_depth)
// wglRealizeLayerPalette(Fl_X::i(this)->private_dc, 1, TRUE);
#else
@@ -198,7 +195,7 @@ void Fl_Gl_Window::make_overlay_current() {
void Fl_Gl_Window::hide_overlay() {
#if HAVE_GL_OVERLAY
-#if defined(_WIN32) || defined(WIN32)
+#ifdef WIN32
// nothing needs to be done? Or should it be erased?
#else
if (overlay && overlay!=this) ((Fl_Gl_Window*)overlay)->hide();
@@ -209,5 +206,5 @@ void Fl_Gl_Window::hide_overlay() {
#endif
//
-// End of "$Id: Fl_Gl_Overlay.cxx,v 1.5.2.14 2001/01/22 15:13:39 easysw Exp $".
+// End of "$Id: Fl_Gl_Overlay.cxx,v 1.5.2.15 2001/03/14 17:20:01 spitzak Exp $".
//
generated by cgit v1.2.3 (git 2.25.1) at 2026-02-08 11:15:21 +0000