--- /dev/null
+/* Copyright © 2013, Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/* Perform some simple drawing via OpenGL as follows:
+ *
+ * 1. Using GLX to construct an OpenGL context
+ * 2. By directly linking with libGL.so
+ * 3. By using glXGetProcAddress to lookup OpenGL functions
+ */
+
+#define GL_GLEXT_PROTOTYPES
+#include <GL/gl.h>
+#include <GL/glx.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "util.h"
+
+/* The OpenGL header files give typedefs for the types of all
+ * functions provided by etensisons. Here, though, we're using
+ * glxGetProcAddress to lookup core functions, so we provide our own
+ * typedefs. */
+typedef void (*FIPS_GLCLEAR_FN)(GLbitfield);
+FIPS_GLCLEAR_FN my_glClear;
+
+typedef void (*FIPS_GLCLEARCOLOR_FN)(GLclampf, GLclampf, GLclampf, GLclampf);
+FIPS_GLCLEARCOLOR_FN my_glClearColor;
+
+typedef void (*FIPS_GLLOADIDENTITY_FN)(void);
+FIPS_GLLOADIDENTITY_FN my_glLoadIdentity;
+
+typedef void (*FIPS_GLMATRIXMODE_FN)(GLenum);
+FIPS_GLMATRIXMODE_FN my_glMatrixMode;
+
+typedef void (*FIPS_GLORTHO_FN)(GLdouble, GLdouble, GLdouble, GLdouble, GLdouble, GLdouble);
+FIPS_GLORTHO_FN my_glOrtho;
+
+typedef void (*FIPS_GLVIEWPORT_FN)(GLint, GLint, GLsizei, GLsizei);
+FIPS_GLVIEWPORT_FN my_glViewport;
+
+typedef XVisualInfo* (*FIPS_GLXCHOOSEVISUAL_FN)(Display *, int, int *);
+FIPS_GLXCHOOSEVISUAL_FN my_glXChooseVisual;
+
+typedef GLXContext (*FIPS_GLXCREATECONTEXT_FN)(Display *, XVisualInfo *, GLXContext, Bool);
+FIPS_GLXCREATECONTEXT_FN my_glXCreateContext;
+
+typedef void (*FIPS_GLXDESTROYCONTEXT_FN)(Display *, GLXContext);
+FIPS_GLXDESTROYCONTEXT_FN my_glXDestroyContext;
+
+typedef Bool (*FIPS_GLXMAKECURRENT_FN)(Display *, GLXDrawable, GLXContext);
+FIPS_GLXMAKECURRENT_FN my_glXMakeCurrent;
+
+typedef void (*FIPS_GLXSWAPBUFFERS_FN)(Display *, GLXDrawable);
+FIPS_GLXSWAPBUFFERS_FN my_glXSwapBuffers;
+
+#define HANDLE_EVENTS_GL_PREFIX my_
+#include "handle-events.c"
+
+static void
+resolve_symbols (void)
+{
+ my_glClear = (FIPS_GLCLEAR_FN) glXGetProcAddress ((GLubyte*) "glClear");
+ if (my_glClear == NULL) {
+ fprintf (stderr, "Failed to glXGetProcAddress glClear\n");
+ exit (1);
+ }
+
+ my_glClearColor = (FIPS_GLCLEARCOLOR_FN) glXGetProcAddress ((GLubyte*) "glClearColor");
+ if (my_glClearColor == NULL) {
+ fprintf (stderr, "Failed to glXGetProcAddress glClearColor\n");
+ exit (1);
+ }
+
+ my_glLoadIdentity = (FIPS_GLLOADIDENTITY_FN) glXGetProcAddress ((GLubyte*) "glLoadIdentity");
+ if (my_glLoadIdentity == NULL) {
+ fprintf (stderr, "Failed to glXGetProcAddress glLoadIdentity\n");
+ exit (1);
+ }
+
+ my_glMatrixMode = (FIPS_GLMATRIXMODE_FN) glXGetProcAddress ((GLubyte*) "glMatrixMode");
+ if (my_glMatrixMode == NULL) {
+ fprintf (stderr, "Failed to glXGetProcAddress glMatrixMode\n");
+ exit (1);
+ }
+
+ my_glOrtho = (FIPS_GLORTHO_FN) glXGetProcAddress ((GLubyte*) "glOrtho");
+ if (my_glOrtho == NULL) {
+ fprintf (stderr, "Failed to glXGetProcAddress glOrtho\n");
+ exit (1);
+ }
+
+ my_glViewport = (FIPS_GLVIEWPORT_FN) glXGetProcAddress ((GLubyte*) "glViewport");
+ if (my_glViewport == NULL) {
+ fprintf (stderr, "Failed to glXGetProcAddress glViewport\n");
+ exit (1);
+ }
+
+ my_glXChooseVisual = (FIPS_GLXCHOOSEVISUAL_FN) glXGetProcAddress ((GLubyte*) "glXChooseVisual");
+ if (my_glXChooseVisual == NULL) {
+ fprintf (stderr, "Failed to glXGetProcAddress glXChooseVisual\n");
+ exit (1);
+ }
+
+ my_glXCreateContext = (FIPS_GLXCREATECONTEXT_FN) glXGetProcAddress ((GLubyte*) "glXCreateContext");
+ if (my_glXCreateContext == NULL) {
+ fprintf (stderr, "Failed to glXGetProcAddress glXCreateContext\n");
+ exit (1);
+ }
+
+ my_glXDestroyContext = (FIPS_GLXDESTROYCONTEXT_FN) glXGetProcAddress ((GLubyte*) "glXDestroyContext");
+ if (my_glXDestroyContext == NULL) {
+ fprintf (stderr, "Failed to glXGetProcAddress glXDestroyContext\n");
+ exit (1);
+ }
+
+ my_glXMakeCurrent = (FIPS_GLXMAKECURRENT_FN) glXGetProcAddress ((GLubyte*) "glXMakeCurrent");
+ if (my_glXMakeCurrent == NULL) {
+ fprintf (stderr, "Failed to glXGetProcAddress glXMakeCurrent\n");
+ exit (1);
+ }
+
+ my_glXSwapBuffers = (FIPS_GLXSWAPBUFFERS_FN) glXGetProcAddress ((GLubyte*) "glXSwapBuffers");
+ if (my_glXSwapBuffers == NULL) {
+ fprintf (stderr, "Failed to glXGetProcAddress glXSwapBuffers\n");
+ exit (1);
+ }
+}
+
+int
+main (void)
+{
+ Display *dpy;
+ Window window;
+
+ util_init_display_window (&dpy, &window);
+
+ resolve_symbols ();
+
+ handle_events (dpy, window);
+
+ util_fini_display_window (dpy, window);
+
+ return 0;
+}
projects / fips / blobdiff