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authorBrian Paul <brianp@vmware.com>2010-02-19 11:12:20 -0700
committerBrian Paul <brianp@vmware.com>2010-02-19 11:12:20 -0700
commit3ef51b4bd98648f3141b3c6978db312f2f6c782e (patch)
treedd74a469659063ddf2db292e83ffda26d2bf7bc0 /progs
parente9df31fac95ccdd142e3bbce591fedff0da6caf9 (diff)
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progs/tests: new zbitmap.c test to exercize Z testing of glBitmap
Diffstat (limited to 'progs')
-rw-r--r--progs/tests/.gitignore1
-rw-r--r--progs/tests/Makefile1
-rw-r--r--progs/tests/SConscript1
-rw-r--r--progs/tests/zbitmap.c127
4 files changed, 130 insertions, 0 deletions
diff --git a/progs/tests/.gitignore b/progs/tests/.gitignore
index 8b3e9f3..d905fab 100644
--- a/progs/tests/.gitignore
+++ b/progs/tests/.gitignore
@@ -104,6 +104,7 @@ vptorus
vpwarpmesh
yuvrect
yuvsquare
+zbitmap
zcomp
zdrawpix
zreaddraw
diff --git a/progs/tests/Makefile b/progs/tests/Makefile
index d33415a..6c78abc 100644
--- a/progs/tests/Makefile
+++ b/progs/tests/Makefile
@@ -120,6 +120,7 @@ SOURCES = \
vpwarpmesh.c \
yuvrect.c \
yuvsquare.c \
+ zbitmap.c \
zcomp.c \
zdrawpix.c \
zreaddraw.c
diff --git a/progs/tests/SConscript b/progs/tests/SConscript
index 04e4bdf..3580ba9 100644
--- a/progs/tests/SConscript
+++ b/progs/tests/SConscript
@@ -118,6 +118,7 @@ progs = [
'vpwarpmesh',
'yuvrect',
'yuvsquare',
+ 'zbitmap',
'zcomp',
'zdrawpix',
'zreaddraw',
diff --git a/progs/tests/zbitmap.c b/progs/tests/zbitmap.c
new file mode 100644
index 0000000..45cb754
--- /dev/null
+++ b/progs/tests/zbitmap.c
@@ -0,0 +1,127 @@
+/*
+ * Test Z values of glBitmap.
+ * Brian Paul
+ * 19 Feb 2010
+ */
+
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <GL/glew.h>
+#include <GL/glut.h>
+
+
+static GLint Win = 0;
+
+
+static void
+PrintString(const char *s)
+{
+ while (*s) {
+ glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s);
+ s++;
+ }
+}
+
+
+static void
+Display(void)
+{
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-3.0, 3.0, -3.0, 3.0, -2.0, 2.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+
+ glColor3f(1, 1, 1);
+ glRasterPos2f(-2.0, 2.6);
+ PrintString("Z = -1.0");
+ glRasterPos2f(-0.5, 2.6);
+ PrintString("Z = 0.0");
+ glRasterPos2f(1.0, 2.6);
+ PrintString("Z = 1.0");
+
+ glColor3f(0, 0.4, 0.6);
+ glBegin(GL_QUADS);
+ glVertex3f(-2.0, -2.5, -1);
+ glVertex3f(-1.0, -2.5, -1);
+ glVertex3f(-1.0, 2.5, -1);
+ glVertex3f(-2.0, 2.5, -1);
+
+ glVertex3f(-0.5, -2.5, 0);
+ glVertex3f(0.5, -2.5, 0);
+ glVertex3f(0.5, 2.5, 0);
+ glVertex3f(-0.5, 2.5, 0);
+
+ glVertex3f(1.0, -2.5, 1);
+ glVertex3f(2.0, -2.5, 1);
+ glVertex3f(2.0, 2.5, 1);
+ glVertex3f(1.0, 2.5, 1);
+ glEnd();
+
+ glColor3f(1, 1, 1);
+
+ glRasterPos3f(-2.0, -1, -1.0);
+ PrintString("This is a bitmap string drawn at z = -1.0");
+
+ glRasterPos3f(-2.0, 0, 0.0);
+ PrintString("This is a bitmap string drawn at z = 0.0");
+
+ glRasterPos3f(-2.0, 1, 1.0);
+ PrintString("This is a bitmap string drawn at z = 1.0");
+
+ glRasterPos3f(-1.5, -2.8, 0.0);
+ PrintString("GL_DEPTH_FUNC = GL_LEQUAL");
+
+ glutSwapBuffers();
+}
+
+
+static void
+Reshape(int width, int height)
+{
+ glViewport(0, 0, width, height);
+}
+
+
+static void
+Key(unsigned char key, int x, int y)
+{
+ if (key == 27) {
+ glutDestroyWindow(Win);
+ exit(0);
+ }
+ glutPostRedisplay();
+}
+
+
+static void
+Init(void)
+{
+ glClearColor(0.25, 0.25, 0.25, 0.0);
+ glDepthFunc(GL_LEQUAL);
+ glEnable(GL_DEPTH_TEST);
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ glutInitWindowSize(400, 400);
+ glutInit(&argc, argv);
+ glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
+ Win = glutCreateWindow(argv[0]);
+ glewInit();
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutDisplayFunc(Display);
+ Init();
+ glutMainLoop();
+ return 0;
+}