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authorBrian Paul <brianp@vmware.com>2009-08-31 14:56:34 -0600
committerBrian Paul <brianp@vmware.com>2009-08-31 19:34:47 -0600
commitb3232e9280ff7104d68b7e4f229604f574a4e37a (patch)
tree15703f2699194528aa27baecd99467cd35acc563 /progs/tests/zreaddraw.c
parent18656201ef62da1892d66e0899001ae82e2555c2 (diff)
progs/tests: disable depth test for second glDrawPixels
We don't want to z-test that glDrawPixels. Also, set the raster color to red when drawing GL_DEPTH_COMPONENT image to aid in debugging.
Diffstat (limited to 'progs/tests/zreaddraw.c')
-rw-r--r--progs/tests/zreaddraw.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/progs/tests/zreaddraw.c b/progs/tests/zreaddraw.c
index 2cbfeb6ff1..8839e10836 100644
--- a/progs/tests/zreaddraw.c
+++ b/progs/tests/zreaddraw.c
@@ -24,6 +24,8 @@ static void Display(void)
glClearColor(0.5, 0.5, 0.5, 1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glEnable(GL_DEPTH_TEST);
+
/* draw a sphere */
glViewport(0, 0, 100, 100);
glMatrixMode(GL_PROJECTION);
@@ -46,9 +48,12 @@ static void Display(void)
/* draw depth image with scaling (into z buffer) */
glPixelZoom(4.0, 4.0);
+ glColor4f(1, 0, 0, 0);
glWindowPos2i(100, 0);
glDrawPixels(100, 100, GL_DEPTH_COMPONENT, GL_FLOAT, depth);
+ glDisable(GL_DEPTH_TEST);
+
/* read back scaled depth image */
glReadPixels(100, 0, 400, 400, GL_DEPTH_COMPONENT, GL_FLOAT, depth2);
/* draw as luminance */
@@ -96,7 +101,6 @@ static void Init(void)
glLightfv(GL_LIGHT0, GL_POSITION, pos);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
- glEnable(GL_DEPTH_TEST);
}