[Mesa-dev] [PATCH] r600g: fix interpolation with clipvertex

[Vadim Girlin]

Signed-off-by: Vadim Girlin <vadimgirlin at gmail.com>
---

Tested on evergreeen: fixes 5 interpolation tests, no regressions

 src/gallium/drivers/r600/r600_shader.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index bb6e58a..aaac9b2 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -1002,6 +1002,9 @@ static int r600_shader_from_tgsi(struct r600_pipe_context * rctx, struct r600_pi
 		shader->output[noutput].gpr = ctx.temp_reg+1;
 		noutput++;
 
+		/* reset spi_sid for clipvertex output to avoid confusing spi */
+		shader->output[ctx.cv_output].spi_sid = 0;
+
 		shader->clip_dist_write = 0xFF;
 
 		for (i = 0; i < 8; i++) {
-- 
1.7.7.5