ac465d29b4
I'm taking a page from Dolphin's book, and including copies of each dependency's source code. This combines the ease of use of including pre-built libraries instead of needing to navigate a package manager - as is (or was) the case for MSVC - with the portability of using packages. Granted, this method's more of a jack of all trades, master of none, since it's *less* user-friendly than prebuilt packages (compilation times), and you don't get the per-distro compatibility fixes you'd get from a package manager. You can still use system libs if you want. In fact, it's still the default behaviour: compiling the libs manually is just a fallback. I'll add an option to force-enable this soon, however, since it's a nicer way to produce static MSYS2 builds than the hackish nightmare that I was using before. Not to mention, having my own copy of the sources means I can provide my own fixes and tweaks your package manager may not. For example, I can combine MSYS2's FreeType subpixel rendering with vcpkg's fix for SDL2 exporting its symbols in static builds.
149 lines
3.5 KiB
C++
149 lines
3.5 KiB
C++
//
|
|
// "$Id$"
|
|
//
|
|
// OpenGL overlay test program for the Fast Light Tool Kit (FLTK).
|
|
//
|
|
// Copyright 1998-2010 by Bill Spitzak and others.
|
|
//
|
|
// This library is free software. Distribution and use rights are outlined in
|
|
// the file "COPYING" which should have been included with this file. If this
|
|
// file is missing or damaged, see the license at:
|
|
//
|
|
// http://www.fltk.org/COPYING.php
|
|
//
|
|
// Please report all bugs and problems on the following page:
|
|
//
|
|
// http://www.fltk.org/str.php
|
|
//
|
|
|
|
#include <config.h>
|
|
#include <FL/Fl.H>
|
|
#include <FL/Fl_Window.H>
|
|
#include <FL/Fl_Hor_Slider.H>
|
|
#include <FL/Fl_Toggle_Button.H>
|
|
#include <FL/math.h>
|
|
|
|
#if !HAVE_GL
|
|
#include <FL/Fl_Box.H>
|
|
class shape_window : public Fl_Box {
|
|
public:
|
|
int sides;
|
|
shape_window(int x,int y,int w,int h,const char *l=0)
|
|
:Fl_Box(FL_DOWN_BOX,x,y,w,h,l){
|
|
label("This demo does\nnot work without GL");
|
|
}
|
|
};
|
|
#else
|
|
#include <FL/gl.h>
|
|
#include <FL/Fl_Gl_Window.H>
|
|
|
|
class shape_window : public Fl_Gl_Window {
|
|
void draw();
|
|
void draw_overlay();
|
|
public:
|
|
int sides;
|
|
int overlay_sides;
|
|
shape_window(int x,int y,int w,int h,const char *l=0);
|
|
};
|
|
|
|
shape_window::shape_window(int x,int y,int w,int h,const char *l) :
|
|
Fl_Gl_Window(x,y,w,h,l) {
|
|
sides = overlay_sides = 3;
|
|
}
|
|
|
|
void shape_window::draw() {
|
|
// the valid() property may be used to avoid reinitializing your
|
|
// GL transformation for each redraw:
|
|
if (!valid()) {
|
|
valid(1);
|
|
glLoadIdentity();
|
|
glViewport(0,0,pixel_w(),pixel_h());
|
|
}
|
|
// draw an amazing but slow graphic:
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
// for (int j=1; j<=1000; j++) {
|
|
glBegin(GL_POLYGON);
|
|
for (int j=0; j<sides; j++) {
|
|
double ang = j*2*M_PI/sides;
|
|
glColor3f(float(j)/sides,float(j)/sides,float(j)/sides);
|
|
glVertex3f(cos(ang),sin(ang),0);
|
|
}
|
|
glEnd();
|
|
// }
|
|
}
|
|
|
|
void shape_window::draw_overlay() {
|
|
// the valid() property may be used to avoid reinitializing your
|
|
// GL transformation for each redraw:
|
|
if (!valid()) {
|
|
valid(1);
|
|
glLoadIdentity();
|
|
glViewport(0,0,pixel_w(),pixel_h());
|
|
}
|
|
// draw an amazing graphic:
|
|
gl_color(FL_RED);
|
|
glBegin(GL_LINE_LOOP);
|
|
for (int j=0; j<overlay_sides; j++) {
|
|
double ang = j*2*M_PI/overlay_sides;
|
|
glVertex3f(cos(ang),sin(ang),0);
|
|
}
|
|
glEnd();
|
|
}
|
|
#endif
|
|
|
|
// when you change the data, as in this callback, you must call redraw():
|
|
void sides_cb(Fl_Widget *o, void *p) {
|
|
shape_window *sw = (shape_window *)p;
|
|
sw->sides = int(((Fl_Slider *)o)->value());
|
|
sw->redraw();
|
|
}
|
|
|
|
#if HAVE_GL
|
|
void overlay_sides_cb(Fl_Widget *o, void *p) {
|
|
shape_window *sw = (shape_window *)p;
|
|
sw->overlay_sides = int(((Fl_Slider *)o)->value());
|
|
sw->redraw_overlay();
|
|
}
|
|
#endif
|
|
#include <stdio.h>
|
|
int main(int argc, char **argv) {
|
|
|
|
Fl::use_high_res_GL(1);
|
|
Fl_Window window(300, 370);
|
|
|
|
shape_window sw(10, 75, window.w()-20, window.h()-90);
|
|
//sw.mode(FL_RGB);
|
|
window.resizable(&sw);
|
|
|
|
Fl_Hor_Slider slider(60, 5, window.w()-70, 30, "Sides:");
|
|
slider.align(FL_ALIGN_LEFT);
|
|
slider.callback(sides_cb,&sw);
|
|
slider.value(sw.sides);
|
|
slider.step(1);
|
|
slider.bounds(3,40);
|
|
|
|
Fl_Hor_Slider oslider(60, 40, window.w()-70, 30, "Overlay:");
|
|
oslider.align(FL_ALIGN_LEFT);
|
|
#if HAVE_GL
|
|
oslider.callback(overlay_sides_cb,&sw);
|
|
oslider.value(sw.overlay_sides);
|
|
#endif
|
|
oslider.step(1);
|
|
oslider.bounds(3,40);
|
|
|
|
window.end();
|
|
window.show(argc,argv);
|
|
#if HAVE_GL
|
|
printf("Can do overlay = %d\n", sw.can_do_overlay());
|
|
sw.show();
|
|
sw.redraw_overlay();
|
|
#else
|
|
sw.show();
|
|
#endif
|
|
|
|
return Fl::run();
|
|
}
|
|
|
|
//
|
|
// End of "$Id$".
|
|
//
|