Mesa (master): progs/tests: disable depth test for second glDrawPixels
Brian Paul
brianp at kemper.freedesktop.org
Tue Sep 1 01:36:10 UTC 2009
Module: Mesa
Branch: master
Commit: b3232e9280ff7104d68b7e4f229604f574a4e37a
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=b3232e9280ff7104d68b7e4f229604f574a4e37a
Author: Brian Paul <brianp at vmware.com>
Date: Mon Aug 31 14:56:34 2009 -0600
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.
---
progs/tests/zreaddraw.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/progs/tests/zreaddraw.c b/progs/tests/zreaddraw.c
index 2cbfeb6..8839e10 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);
}
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