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xeglgears: Clean up the code a bit 

Still a mess...
This commit is contained in:
Kristian Høgsberg 2010-02-26 13:18:37 -05:00
parent ea203de2d0
commit 88c174d182
1 changed files with 46 additions and 33 deletions
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79
progs/egl/xeglgears.c
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@ -344,6 +344,8 @@ struct egl_manager {
EGLBoolean verbose;
EGLint major, minor;
GC gc;
};
static struct egl_manager *
@ -475,6 +477,8 @@ egl_manager_create_window(struct egl_manager *eman, const char *name,
}
}
eman->gc = XCreateGC(eman->xdpy, eman->xwin, 0, NULL);
XMapWindow(eman->xdpy, eman->xwin);
return EGL_TRUE;
@ -531,6 +535,8 @@ egl_manager_destroy(struct egl_manager *eman)
if (eman->xpix != None)
XFreePixmap(eman->xdpy, eman->xpix);
XFreeGC(eman->xdpy, eman->gc);
free(eman);
}
@ -580,11 +586,27 @@ texture_gears(struct egl_manager *eman, int surface_type)
eglSwapBuffers(eman->dpy, eman->win);
}
static void
copy_gears(struct egl_manager *eman,
EGLint tile_w, EGLint tile_h, EGLint w, EGLint h)
{
int x, y;
eglWaitClient();
for (x = 0; x < w; x += tile_w) {
for (y = 0; y < h; y += tile_h) {
XCopyArea(eman->xdpy, eman->xpix, eman->xwin, eman->gc,
0, 0, tile_w, tile_h, x, y);
}
}
}
static void
event_loop(struct egl_manager *eman, EGLint surface_type, EGLint w, EGLint h)
{
GC gc = XCreateGC(eman->xdpy, eman->xwin, 0, NULL);
EGLint orig_w = w, orig_h = h;
int window_w = w, window_h = h;
if (surface_type == EGL_PBUFFER_BIT)
printf("there will be no screen update if "
@ -599,10 +621,10 @@ event_loop(struct egl_manager *eman, EGLint surface_type, EGLint w, EGLint h)
/* we'll redraw below */
break;
case ConfigureNotify:
w = event.xconfigure.width;
h = event.xconfigure.height;
window_w = event.xconfigure.width;
window_h = event.xconfigure.height;
if (surface_type == EGL_WINDOW_BIT)
reshape(w, h);
reshape(window_w, window_h);
break;
case KeyPress:
{
@ -637,7 +659,6 @@ event_loop(struct egl_manager *eman, EGLint surface_type, EGLint w, EGLint h)
static int frames = 0;
static double tRot0 = -1.0, tRate0 = -1.0;
double dt, t = current_time();
int x, y;
if (tRot0 < 0.0)
tRot0 = t;
dt = t - tRot0;
@ -649,41 +670,35 @@ event_loop(struct egl_manager *eman, EGLint surface_type, EGLint w, EGLint h)
angle -= 3600.0;
switch (surface_type) {
case GEARS_WINDOW:
draw();
eglSwapBuffers(eman->dpy, eman->win);
break;
case GEARS_PBUFFER:
draw();
if (!eglCopyBuffers(eman->dpy, eman->pbuf, eman->xpix))
break;
copy_gears(eman, w, h, window_w, window_h);
break;
case GEARS_PBUFFER_TEXTURE:
eglMakeCurrent(eman->dpy, eman->pbuf, eman->pbuf, eman->ctx);
draw();
texture_gears(eman, surface_type);
break;
case GEARS_PIXMAP:
draw();
copy_gears(eman, w, h, window_w, window_h);
break;
case GEARS_PIXMAP_TEXTURE:
eglMakeCurrent(eman->dpy, eman->pix, eman->pix, eman->ctx);
break;
}
draw();
switch (surface_type) {
case GEARS_WINDOW:
eglSwapBuffers(eman->dpy, eman->win);
break;
case GEARS_PBUFFER_TEXTURE:
case GEARS_PIXMAP_TEXTURE:
draw();
texture_gears(eman, surface_type);
break;
case GEARS_PBUFFER:
if (!eglCopyBuffers(eman->dpy, eman->pbuf, eman->xpix))
break;
eglWaitClient();
/* fall through */
case GEARS_PIXMAP:
eglWaitClient();
for (x = 0; x < w; x += orig_w) {
for (y = 0; y < h; y += orig_h) {
XCopyArea(eman->xdpy, eman->xpix, eman->xwin, gc,
0, 0, orig_w, orig_h, x, y);
}
}
break;
}
}
frames++;
@ -699,8 +714,6 @@ event_loop(struct egl_manager *eman, EGLint surface_type, EGLint w, EGLint h)
}
}
}
XFreeGC(eman->xdpy, gc);
}