xref: /aosp_15_r20/external/libepoxy/test/glx_common.c (revision 706d0b42ae4182339789e08d473a0b312ecdc60f)
1*706d0b42SXin Li /*
2*706d0b42SXin Li  * Copyright © 2009, 2013 Intel Corporation
3*706d0b42SXin Li  *
4*706d0b42SXin Li  * Permission is hereby granted, free of charge, to any person obtaining a
5*706d0b42SXin Li  * copy of this software and associated documentation files (the "Software"),
6*706d0b42SXin Li  * to deal in the Software without restriction, including without limitation
7*706d0b42SXin Li  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8*706d0b42SXin Li  * and/or sell copies of the Software, and to permit persons to whom the
9*706d0b42SXin Li  * Software is furnished to do so, subject to the following conditions:
10*706d0b42SXin Li  *
11*706d0b42SXin Li  * The above copyright notice and this permission notice (including the next
12*706d0b42SXin Li  * paragraph) shall be included in all copies or substantial portions of the
13*706d0b42SXin Li  * Software.
14*706d0b42SXin Li  *
15*706d0b42SXin Li  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16*706d0b42SXin Li  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17*706d0b42SXin Li  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18*706d0b42SXin Li  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19*706d0b42SXin Li  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20*706d0b42SXin Li  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21*706d0b42SXin Li  * IN THE SOFTWARE.
22*706d0b42SXin Li  */
23*706d0b42SXin Li 
24*706d0b42SXin Li #include <stdio.h>
25*706d0b42SXin Li #include <stdlib.h>
26*706d0b42SXin Li #include <X11/Xlib.h>
27*706d0b42SXin Li #include "glx_common.h"
28*706d0b42SXin Li 
29*706d0b42SXin Li Display *
get_display_or_skip(void)30*706d0b42SXin Li get_display_or_skip(void)
31*706d0b42SXin Li {
32*706d0b42SXin Li 	Display *dpy = XOpenDisplay(NULL);
33*706d0b42SXin Li 
34*706d0b42SXin Li 	if (!dpy) {
35*706d0b42SXin Li 		fputs("couldn't open display\n", stderr);
36*706d0b42SXin Li 		exit(77);
37*706d0b42SXin Li 	}
38*706d0b42SXin Li 
39*706d0b42SXin Li 	return dpy;
40*706d0b42SXin Li }
41*706d0b42SXin Li 
42*706d0b42SXin Li XVisualInfo *
get_glx_visual(Display * dpy)43*706d0b42SXin Li get_glx_visual(Display *dpy)
44*706d0b42SXin Li {
45*706d0b42SXin Li 	XVisualInfo *visinfo;
46*706d0b42SXin Li 	int attrib[] = {
47*706d0b42SXin Li 		GLX_RGBA,
48*706d0b42SXin Li 		GLX_RED_SIZE, 1,
49*706d0b42SXin Li 		GLX_GREEN_SIZE, 1,
50*706d0b42SXin Li 		GLX_BLUE_SIZE, 1,
51*706d0b42SXin Li 		GLX_DOUBLEBUFFER,
52*706d0b42SXin Li 		None
53*706d0b42SXin Li 	};
54*706d0b42SXin Li 	int screen = DefaultScreen(dpy);
55*706d0b42SXin Li 
56*706d0b42SXin Li 	visinfo = glXChooseVisual(dpy, screen, attrib);
57*706d0b42SXin Li 	if (visinfo == NULL) {
58*706d0b42SXin Li 		fputs("Couldn't get an RGBA, double-buffered visual\n", stderr);
59*706d0b42SXin Li 		exit(1);
60*706d0b42SXin Li 	}
61*706d0b42SXin Li 
62*706d0b42SXin Li 	return visinfo;
63*706d0b42SXin Li }
64*706d0b42SXin Li 
65*706d0b42SXin Li Window
get_glx_window(Display * dpy,XVisualInfo * visinfo,bool map)66*706d0b42SXin Li get_glx_window(Display *dpy, XVisualInfo *visinfo, bool map)
67*706d0b42SXin Li {
68*706d0b42SXin Li 	XSetWindowAttributes window_attr;
69*706d0b42SXin Li 	unsigned long mask;
70*706d0b42SXin Li 	int screen = DefaultScreen(dpy);
71*706d0b42SXin Li 	Window root_win = RootWindow(dpy, screen);
72*706d0b42SXin Li 	Window win;
73*706d0b42SXin Li 
74*706d0b42SXin Li 	window_attr.background_pixel = 0;
75*706d0b42SXin Li 	window_attr.border_pixel = 0;
76*706d0b42SXin Li 	window_attr.colormap = XCreateColormap(dpy, root_win,
77*706d0b42SXin Li 					       visinfo->visual, AllocNone);
78*706d0b42SXin Li 	window_attr.event_mask = StructureNotifyMask | ExposureMask |
79*706d0b42SXin Li 		KeyPressMask;
80*706d0b42SXin Li 	mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
81*706d0b42SXin Li 	win = XCreateWindow(dpy, root_win, 0, 0,
82*706d0b42SXin Li 			    10, 10, /* width, height */
83*706d0b42SXin Li 			    0, visinfo->depth, InputOutput,
84*706d0b42SXin Li 			    visinfo->visual, mask, &window_attr);
85*706d0b42SXin Li 
86*706d0b42SXin Li 	return win;
87*706d0b42SXin Li }
88*706d0b42SXin Li 
89*706d0b42SXin Li void
make_glx_context_current_or_skip(Display * dpy)90*706d0b42SXin Li make_glx_context_current_or_skip(Display *dpy)
91*706d0b42SXin Li {
92*706d0b42SXin Li 	GLXContext ctx;
93*706d0b42SXin Li 	XVisualInfo *visinfo = get_glx_visual(dpy);
94*706d0b42SXin Li 	Window win = get_glx_window(dpy, visinfo, false);
95*706d0b42SXin Li 
96*706d0b42SXin Li 	ctx = glXCreateContext(dpy, visinfo, False, True);
97*706d0b42SXin Li 	if (ctx == None) {
98*706d0b42SXin Li 		fputs("glXCreateContext failed\n", stderr);
99*706d0b42SXin Li 		exit(1);
100*706d0b42SXin Li 	}
101*706d0b42SXin Li 
102*706d0b42SXin Li 	glXMakeCurrent(dpy, win, ctx);
103*706d0b42SXin Li }
104*706d0b42SXin Li 
105*706d0b42SXin Li GLXFBConfig
get_fbconfig_for_visinfo(Display * dpy,XVisualInfo * visinfo)106*706d0b42SXin Li get_fbconfig_for_visinfo(Display *dpy, XVisualInfo *visinfo)
107*706d0b42SXin Li {
108*706d0b42SXin Li 	int i, nconfigs;
109*706d0b42SXin Li 	GLXFBConfig ret = None, *configs;
110*706d0b42SXin Li 
111*706d0b42SXin Li 	configs = glXGetFBConfigs(dpy, visinfo->screen, &nconfigs);
112*706d0b42SXin Li 	if (!configs)
113*706d0b42SXin Li 		return None;
114*706d0b42SXin Li 
115*706d0b42SXin Li 	for (i = 0; i < nconfigs; i++) {
116*706d0b42SXin Li 		int v;
117*706d0b42SXin Li 
118*706d0b42SXin Li 		if (glXGetFBConfigAttrib(dpy, configs[i], GLX_VISUAL_ID, &v))
119*706d0b42SXin Li 			continue;
120*706d0b42SXin Li 
121*706d0b42SXin Li 		if (v == visinfo->visualid) {
122*706d0b42SXin Li 			ret = configs[i];
123*706d0b42SXin Li 			break;
124*706d0b42SXin Li 		}
125*706d0b42SXin Li 	}
126*706d0b42SXin Li 
127*706d0b42SXin Li 	XFree(configs);
128*706d0b42SXin Li 	return ret;
129*706d0b42SXin Li }
130