This test also has hard-coded expected[] coords which assume a 64 x 32
window size. New use the default window size but setup the projection
matrix and viewport as if the window was only 64 x 32.
---
tests/spec/ext_transform_feedback/position.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/tests/spec/ext_transform_feedback/position.c
b/tests/spec/ext_transform_feedback/position.c
index 25c01dc..e278f7f 100644
--- a/tests/spec/ext_transform_feedback/position.c
+++ b/tests/spec/ext_transform_feedback/position.c
@@ -33,9 +33,6 @@
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
-
- config.window_width = 64;
- config.window_height = 32;
config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
PIGLIT_GL_TEST_CONFIG_END
@@ -204,8 +201,19 @@ enum piglit_result piglit_display(void)
break;
}
- /* Render into TFBO. */
+ /* Setup projection for a 64 x 32 window region. That's what
+ * the expected coords above assume.
+ * XXX it would be better if the position coords in the above
+ * array were compute instead of fixed.
+ */
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(0, 64, 0, 32, -1, 1);
+ glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
+ glViewport(0, 0, 64, 32);
+
+ /* Render into TFBO. */
glUseProgram(prog);
if (discard)
glEnable(GL_RASTERIZER_DISCARD_EXT);
--
1.7.10.4
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