--- /dev/null
+/*
+ * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that (i) the above copyright notices and this permission notice appear in
+ * all copies of the software and related documentation, and (ii) the name of
+ * Silicon Graphics may not be used in any advertising or
+ * publicity relating to the software without the specific, prior written
+ * permission of Silicon Graphics.
+ *
+ * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF
+ * ANY KIND,
+ * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR
+ * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
+ * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
+ * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <GL/glew.h>
+#ifdef __APPLE__
+# include <OpenGL/glu.h>
+# include <GLUT/glut.h>
+#else
+# include <GL/glu.h>
+# include <GL/glut.h>
+#endif
+
+
+static int win;
+
+
+static void checkGlError(const char *call) {
+ GLenum error = glGetError();
+ if (error != GL_NO_ERROR) {
+ fprintf(stderr, "error: %s -> %s\n", call, gluErrorString(error));
+ exit(1);
+ }
+}
+
+static void Init(void)
+{
+ const GLubyte *extensions;
+ GLboolean has_GL_GREMEDY_string_marker;
+ GLboolean has_GL_GREMEDY_frame_terminator;
+
+ extensions = glGetString(GL_EXTENSIONS);
+ checkGlError("glGetString(GL_EXTENSIONS)");
+ has_GL_GREMEDY_string_marker = gluCheckExtension("GL_GREMEDY_string_marker", extensions);
+ has_GL_GREMEDY_frame_terminator = gluCheckExtension("GL_GREMEDY_string_marker", extensions);
+
+ if (GLEW_VERSION_3_0) {
+ GLint has_GL3_GREMEDY_string_marker = 0;
+ GLint has_GL3_GREMEDY_frame_terminator = 0;
+ GLint i;
+
+ GLint num_extensions = 0;
+ glGetIntegerv(GL_NUM_EXTENSIONS, &num_extensions);
+ checkGlError("glGetIntegerv(GL_NUM_EXTENSIONS)");
+
+ for (i = 0; i < num_extensions; ++i) {
+ const char *extension;
+
+ extension = (const char *)glGetStringi(GL_EXTENSIONS, i);
+ checkGlError("glGetStringi(GL_EXTENSIONS, i)");
+
+ if (strlen(extension) == 0) {
+ fprintf(stderr, "error: glGetStringi returned empty string\n");
+ exit(1);
+ }
+
+ if (strcmp(extension, "GL_GREMEDY_string_marker_count") == 0) {
+ ++has_GL3_GREMEDY_string_marker;
+ }
+
+ if (strcmp(extension, "GL_GREMEDY_frame_terminator") == 0) {
+ ++has_GL3_GREMEDY_frame_terminator;
+ }
+ }
+
+ if (!!has_GL_GREMEDY_string_marker != !!has_GL3_GREMEDY_string_marker) {
+ fprintf(stderr, "error: GL_GREMEDY_string_marker not consistently supported by GL3\n");
+ exit(1);
+ }
+
+ if (!!has_GL_GREMEDY_frame_terminator != !!has_GL3_GREMEDY_frame_terminator) {
+ fprintf(stderr, "error: GL_GREMEDY_frame_terminator not consistently supported by GL3\n");
+ exit(1);
+ }
+ }
+
+ glewInit();
+
+ if (!!has_GL_GREMEDY_string_marker != !!GLEW_GREMEDY_string_marker) {
+ fprintf(stderr, "error: GL_GREMEDY_string_marker not consistently supported by GLEW\n");
+ exit(1);
+ }
+
+ if (!!has_GL_GREMEDY_frame_terminator != !!GLEW_GREMEDY_frame_terminator) {
+ fprintf(stderr, "error: GL_GREMEDY_frame_terminator not consistently supported by GLEW\n");
+ exit(1);
+ }
+
+ if (GLEW_GREMEDY_string_marker) {
+ glStringMarkerGREMEDY(strlen("Init"), "Init - this should not be included");
+ }
+
+ glClearColor(0.3, 0.1, 0.3, 1.0);
+}
+
+static void Reshape(int width, int height)
+{
+ if (GLEW_GREMEDY_string_marker) {
+ glStringMarkerGREMEDY(0, __FUNCTION__);
+ }
+
+ glViewport(0, 0, (GLint)width, (GLint)height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+ glMatrixMode(GL_MODELVIEW);
+}
+
+static void Draw(void)
+{
+ if (GLEW_GREMEDY_string_marker) {
+ glStringMarkerGREMEDY(0, __FUNCTION__);
+ }
+
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glBegin(GL_TRIANGLES);
+ glColor3f(.8,0,0);
+ glVertex3f(-0.9, -0.9, -30.0);
+ glColor3f(0,.9,0);
+ glVertex3f( 0.9, -0.9, -30.0);
+ glColor3f(0,0,.7);
+ glVertex3f( 0.0, 0.9, -30.0);
+ glEnd();
+
+ glFlush();
+
+ if (GLEW_GREMEDY_frame_terminator) {
+ glFrameTerminatorGREMEDY();
+ }
+
+ glutDestroyWindow(win);
+
+ exit(0);
+}
+
+int main(int argc, char **argv)
+{
+ glutInit(&argc, argv);
+
+ glutInitWindowPosition(0, 0);
+ glutInitWindowSize(250, 250);
+
+ glutInitDisplayMode(GLUT_RGB | GLUT_ALPHA | GLUT_SINGLE);
+
+ win = glutCreateWindow(*argv);
+ if (!win) {
+ exit(1);
+ }
+
+ Init();
+
+ glutReshapeFunc(Reshape);
+ glutDisplayFunc(Draw);
+ glutMainLoop();
+ return 0;
+}
--- /dev/null
+glStringMarkerGREMEDY(len = 4, string = "Init")
+glClearColor(red = 0.3, green = 0.1, blue = 0.3, alpha = 1)
+glStringMarkerGREMEDY(len = 0, string = "Reshape")
+glViewport(x = 0, y = 0, width = 250, height = 250)
+glMatrixMode(mode = GL_PROJECTION)
+glLoadIdentity()
+glOrtho(left = -1, right = 1, bottom = -1, top = 1, zNear = -0.5, zFar = 1000)
+glMatrixMode(mode = GL_MODELVIEW)
+glStringMarkerGREMEDY(len = 0, string = "Draw")
+glClear(mask = GL_COLOR_BUFFER_BIT)
+glBegin(mode = GL_TRIANGLES)
+glColor3f(red = 0.8, green = 0, blue = 0)
+glVertex3f(x = -0.9, y = -0.9, z = -30)
+glColor3f(red = 0, green = 0.9, blue = 0)
+glVertex3f(x = 0.9, y = -0.9, z = -30)
+glColor3f(red = 0, green = 0, blue = 0.7)
+glVertex3f(x = 0, y = 0.9, z = -30)
+glEnd()
+glFlush()
+glFrameTerminatorGREMEDY()