Module: Mesa
Branch: master
Commit: cd8e30452f6d308a0c5e5668d6bba63f01895f1f
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=cd8e30452f6d308a0c5e5668d6bba63f01895f1f

Author: Ilia Mirkin <[email protected]>
Date:   Thu Aug 18 20:12:29 2016 -0400

a4xx: only disable depth clipping, not all clipping, when requested

The previous bit disables the whole clipper, including the regular
viewport-related clipping that would go on. The two new bits disable
near and far clipping (separately, as verified with the
depth-clamp-range piglit).

Signed-off-by: Ilia Mirkin <[email protected]>
Cc: [email protected]

---

 src/gallium/drivers/freedreno/a4xx/a4xx.xml.h       | 2 ++
 src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.c | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/freedreno/a4xx/a4xx.xml.h 
b/src/gallium/drivers/freedreno/a4xx/a4xx.xml.h
index d9a7bb5..a90a4ce 100644
--- a/src/gallium/drivers/freedreno/a4xx/a4xx.xml.h
+++ b/src/gallium/drivers/freedreno/a4xx/a4xx.xml.h
@@ -3145,6 +3145,8 @@ static inline uint32_t A4XX_TPL1_TP_TEX_COUNT_GS(uint32_t 
val)
 
 #define REG_A4XX_GRAS_CL_CLIP_CNTL                             0x00002000
 #define A4XX_GRAS_CL_CLIP_CNTL_CLIP_DISABLE                    0x00008000
+#define A4XX_GRAS_CL_CLIP_CNTL_ZNEAR_CLIP_DISABLE              0x00010000
+#define A4XX_GRAS_CL_CLIP_CNTL_ZFAR_CLIP_DISABLE               0x00020000
 #define A4XX_GRAS_CL_CLIP_CNTL_ZERO_GB_SCALE_Z                 0x00400000
 
 #define REG_A4XX_GRAS_CLEAR_CNTL                               0x00002003
diff --git a/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.c 
b/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.c
index 7456c63..b3a4292 100644
--- a/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.c
+++ b/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.c
@@ -98,7 +98,8 @@ fd4_rasterizer_state_create(struct pipe_context *pctx,
                so->gras_su_mode_control |= 
A4XX_GRAS_SU_MODE_CONTROL_POLY_OFFSET;
 
        if (!cso->depth_clip)
-               so->gras_cl_clip_cntl |= A4XX_GRAS_CL_CLIP_CNTL_CLIP_DISABLE;
+               so->gras_cl_clip_cntl |= 
A4XX_GRAS_CL_CLIP_CNTL_ZNEAR_CLIP_DISABLE |
+                       A4XX_GRAS_CL_CLIP_CNTL_ZFAR_CLIP_DISABLE;
        if (cso->clip_halfz)
                so->gras_cl_clip_cntl |= A4XX_GRAS_CL_CLIP_CNTL_ZERO_GB_SCALE_Z;
 

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