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Diffstat (limited to 'progs/trivial/tri.c')
-rw-r--r--progs/trivial/tri.c101
1 files changed, 49 insertions, 52 deletions
diff --git a/progs/trivial/tri.c b/progs/trivial/tri.c
index d4a7f08ae3..cac3fcb7d9 100644
--- a/progs/trivial/tri.c
+++ b/progs/trivial/tri.c
@@ -32,7 +32,7 @@
#define CI_OFFSET_2 32
-GLenum doubleBuffer;
+GLenum doubleBuffer = 1;
int win;
static void Init(void)
@@ -40,33 +40,32 @@ static void Init(void)
fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
+ fflush(stderr);
- glClearColor(0.0, 0.0, 1.0, 0.0);
+ glClearColor(0.3, 0.1, 0.3, 0.0);
}
static void Reshape(int width, int height)
{
- glViewport(0, 0, (GLint)width, (GLint)height);
+ 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);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+ glMatrixMode(GL_MODELVIEW);
}
static void Key(unsigned char key, int x, int y)
{
-
- switch (key) {
+ switch (key) {
case 27:
glutDestroyWindow(win);
- exit(0);
+ exit(0);
default:
- return;
- }
-
- glutPostRedisplay();
+ glutPostRedisplay();
+ return;
+ }
}
static void Draw(void)
@@ -74,12 +73,12 @@ static void Draw(void)
glClear(GL_COLOR_BUFFER_BIT);
glBegin(GL_TRIANGLES);
- glColor3f(0,0,.7);
- glVertex3f( 0.9, -0.9, -30.0);
glColor3f(.8,0,0);
- glVertex3f( 0.9, 0.9, -30.0);
+ glVertex3f(-0.9, -0.9, -30.0);
glColor3f(0,.9,0);
- glVertex3f(-0.9, 0.0, -30.0);
+ glVertex3f( 0.9, -0.9, -30.0);
+ glColor3f(0,0,.7);
+ glVertex3f( 0.0, 0.9, -30.0);
glEnd();
glFlush();
@@ -91,49 +90,47 @@ static void Draw(void)
static GLenum Args(int argc, char **argv)
{
- GLint i;
-
- doubleBuffer = GL_FALSE;
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-sb") == 0) {
- doubleBuffer = GL_FALSE;
- } else if (strcmp(argv[i], "-db") == 0) {
- doubleBuffer = GL_TRUE;
- } else {
- fprintf(stderr, "%s (Bad option).\n", argv[i]);
- return GL_FALSE;
- }
- }
- return GL_TRUE;
+ GLint i;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-sb") == 0) {
+ doubleBuffer = GL_FALSE;
+ } else if (strcmp(argv[i], "-db") == 0) {
+ doubleBuffer = GL_TRUE;
+ } else {
+ fprintf(stderr, "%s (Bad option).\n", argv[i]);
+ return GL_FALSE;
+ }
+ }
+ return GL_TRUE;
}
int main(int argc, char **argv)
{
- GLenum type;
+ GLenum type;
- glutInit(&argc, argv);
+ glutInit(&argc, argv);
- if (Args(argc, argv) == GL_FALSE) {
- exit(1);
- }
+ if (Args(argc, argv) == GL_FALSE) {
+ exit(1);
+ }
- glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+ glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
- type = GLUT_RGB;
- type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
- glutInitDisplayMode(type);
+ type = GLUT_RGB | GLUT_ALPHA;
+ type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
+ glutInitDisplayMode(type);
- win = glutCreateWindow("First Tri");
- if (!win) {
- exit(1);
- }
+ win = glutCreateWindow(*argv);
+ if (!win) {
+ exit(1);
+ }
- Init();
+ Init();
- glutReshapeFunc(Reshape);
- glutKeyboardFunc(Key);
- glutDisplayFunc(Draw);
- glutMainLoop();
- return 0;
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutDisplayFunc(Draw);
+ glutMainLoop();
+ return 0;
}