From: Brian Paul <brianp@vmware.com>
Date: Thu, 22 Oct 2009 03:51:06 +0000 (-0600)
Subject: progs/tests: draw Z values as luminance, no pixel zoom
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=82ffc5884c29a8d4eb70fde15f27cace4732a4bb;p=mesa.git

progs/tests: draw Z values as luminance, no pixel zoom
---

diff --git a/progs/tests/zreaddraw.c b/progs/tests/zreaddraw.c
index 7dfed20cfb9..7740695bb66 100644
--- a/progs/tests/zreaddraw.c
+++ b/progs/tests/zreaddraw.c
@@ -58,6 +58,10 @@ static void Display(void)
       printf("Depth value range: [%f, %f]\n", min, max);
    }
 
+   /* Draw the Z image as luminance above original rendering */
+   glWindowPos2i(0, 100);
+   glDrawPixels(100, 100, GL_LUMINANCE, depthType, depth);
+
    if (TestPacking) {
       glPixelStorei(GL_PACK_ROW_LENGTH, 0);
       glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
@@ -100,6 +104,7 @@ static void Display(void)
    glReadPixels(100, 0, 400, 400, GL_DEPTH_COMPONENT, GL_FLOAT, depth2);
    /* draw as luminance */
    glPixelZoom(1.0, 1.0);
+   glWindowPos2i(100, 0);
    glDrawPixels(400, 400, GL_LUMINANCE, GL_FLOAT, depth2);
 
    glutSwapBuffers();