Mesa (master): radeonsi: Add missing interpolation mode to check for enabled modes

[Tom Stellard]

Module: Mesa
Branch: master
Commit: 5fff032dd513c74e4fdd2ac04197f09531720c77
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=5fff032dd513c74e4fdd2ac04197f09531720c77

Author: Tom Stellard <thomas.stellard at amd.com>
Date:   Fri Sep  7 08:29:13 2012 -0400

radeonsi: Add missing interpolation mode to check for enabled modes

At least one interpolation mode must be enable, but the code that checks
this was not checking for perspective center.

Reviewed-by: Michel Dänzer <michel.daenzer at amd.com>

---

 src/gallium/drivers/radeonsi/si_state_draw.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/gallium/drivers/radeonsi/si_state_draw.c b/src/gallium/drivers/radeonsi/si_state_draw.c
index 75df4e8..8f6dde0 100644
--- a/src/gallium/drivers/radeonsi/si_state_draw.c
+++ b/src/gallium/drivers/radeonsi/si_state_draw.c
@@ -171,6 +171,7 @@ static void si_pipe_shader_ps(struct pipe_context *ctx, struct si_pipe_shader *s
 	spi_ps_input_ena = shader->spi_ps_input_ena;
 	/* we need to enable at least one of them, otherwise we hang the GPU */
 	if (!G_0286CC_PERSP_SAMPLE_ENA(spi_ps_input_ena) &&
+	    !G_0286CC_PERSP_CENTER_ENA(spi_ps_input_ena) &&
 	    !G_0286CC_PERSP_CENTROID_ENA(spi_ps_input_ena) &&
 	    !G_0286CC_PERSP_PULL_MODEL_ENA(spi_ps_input_ena) &&
 	    !G_0286CC_LINEAR_SAMPLE_ENA(spi_ps_input_ena) &&