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authorBrian Paul <brianp@vmware.com>2010-01-14 09:21:18 -0700
committerBrian Paul <brianp@vmware.com>2010-01-14 09:22:30 -0700
commit0a826921546612bee475ae240e0110977326bec1 (patch)
tree7cc93fe9452f55f62b3040bdf8d248deccbf22bb /progs/trivial
parentd6b4655e13a5f3507180d5f7674c870faff2d24d (diff)
progs/trivial: test glPolygonMode(POINT/LINE) with frustum clipping
Note whether the new verts introduced by clipping show up as points and lines along the edge of the window...
Diffstat (limited to 'progs/trivial')
-rw-r--r--progs/trivial/Makefile1
-rw-r--r--progs/trivial/SConscript1
-rw-r--r--progs/trivial/tri-point-line-clipped.c91
3 files changed, 93 insertions, 0 deletions
diff --git a/progs/trivial/Makefile b/progs/trivial/Makefile
index e15ec33ab5..5e08d60389 100644
--- a/progs/trivial/Makefile
+++ b/progs/trivial/Makefile
@@ -119,6 +119,7 @@ SOURCES = \
tri-lit-material.c \
tri-mask-tri.c \
tri-orig.c \
+ tri-point-line-clipped.c \
tri-query.c \
tri-repeat.c \
tri-scissor-tri.c \
diff --git a/progs/trivial/SConscript b/progs/trivial/SConscript
index 613383c77b..e9ed1cb71e 100644
--- a/progs/trivial/SConscript
+++ b/progs/trivial/SConscript
@@ -96,6 +96,7 @@ progs = [
'tri-logicop-xor',
'tri-mask-tri',
'tri-orig',
+ 'tri-point-line-clipped',
'tri-query',
'tri-repeat',
'tri-scissor-tri',
diff --git a/progs/trivial/tri-point-line-clipped.c b/progs/trivial/tri-point-line-clipped.c
new file mode 100644
index 0000000000..eef926c24c
--- /dev/null
+++ b/progs/trivial/tri-point-line-clipped.c
@@ -0,0 +1,91 @@
+/**
+ * Test frustum clipping w/ glPolygonMode LINE/POINT.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <GL/glut.h>
+
+
+static int win;
+
+
+static void
+Tri(void)
+{
+ glBegin(GL_TRIANGLES);
+ glColor3f(1, 0, 0); glVertex3f(-1.5, -0.8, 0.0);
+ glColor3f(0, 1, 0); glVertex3f( 1.5, -0.8, 0.0);
+ glColor3f(0, 0, 1); glVertex3f( 0.0, 0.9, 0.0);
+ glEnd();
+}
+
+
+static void
+Draw(void)
+{
+ glPointSize(13.0);
+ glLineWidth(5.0);
+
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+ Tri();
+
+ glPolygonMode(GL_FRONT_AND_BACK, GL_POINT);
+ Tri();
+
+ glutSwapBuffers();
+}
+
+
+static void Reshape(int width, int height)
+{
+ glViewport(0, 0, (GLint)width, (GLint)height);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0);
+ glMatrixMode(GL_MODELVIEW);
+}
+
+
+static void
+Key(unsigned char key, int x, int y)
+{
+ if (key == 27) {
+ glutDestroyWindow(win);
+ exit(0);
+ }
+ else {
+ glutPostRedisplay();
+ }
+}
+
+
+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);
+}
+
+
+int
+main(int argc, char **argv)
+{
+ glutInitWindowSize(300, 300);
+ glutInit(&argc, argv);
+ glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
+ win = glutCreateWindow(*argv);
+ if (!win) {
+ return 1;
+ }
+ Init();
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutDisplayFunc(Draw);
+ glutMainLoop();
+ return 0;
+}