Merge remote branch 'origin/7.8'

[mesa.git] / src / mesa / drivers / dri / i965 / brw_clip_state.c

diff --git a/src/mesa/drivers/dri/i965/brw_clip_state.c b/src/mesa/drivers/dri/i965/brw_clip_state.c
index 5762c9577c6b8fc974b96b15e9d6a87a7ef6232d..d78f3616d6fff79e6148ed8bef3a239eca2c97e6 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_clip_state.c
+++ b/src/mesa/drivers/dri/i965/brw_clip_state.c
@@ -32,7 +32,6 @@
 #include "brw_context.h"
 #include "brw_state.h"
 #include "brw_defines.h"
-#include "main/macros.h"
 
 struct brw_clip_unit_key {
    unsigned int total_grf;
@@ -43,11 +42,14 @@ struct brw_clip_unit_key {
    unsigned int curbe_offset;
 
    unsigned int nr_urb_entries, urb_size;
+
+   GLboolean depth_clamp;
 };
 
 static void
 clip_unit_populate_key(struct brw_context *brw, struct brw_clip_unit_key *key)
 {
+   GLcontext *ctx = &brw->intel.ctx;
    memset(key, 0, sizeof(*key));
 
    /* CACHE_NEW_CLIP_PROG */
@@ -62,12 +64,16 @@ clip_unit_populate_key(struct brw_context *brw, struct brw_clip_unit_key *key)
    /* BRW_NEW_URB_FENCE */
    key->nr_urb_entries = brw->urb.nr_clip_entries;
    key->urb_size = brw->urb.vsize;
+
+   /* _NEW_TRANSOFORM */
+   key->depth_clamp = ctx->Transform.DepthClamp;
 }
 
 static dri_bo *
 clip_unit_create_from_key(struct brw_context *brw,
                          struct brw_clip_unit_key *key)
 {
+   struct intel_context *intel = &brw->intel;
    struct brw_clip_unit_state clip;
    dri_bo *bo;
 
@@ -96,10 +102,10 @@ clip_unit_create_from_key(struct brw_context *brw,
        */
       assert(key->nr_urb_entries % 2 == 0);
       
-      /* Although up to 16 concurrent Clip threads are allowed on IGDNG, 
+      /* Although up to 16 concurrent Clip threads are allowed on Ironlake,
        * only 2 threads can output VUEs at a time.
        */
-      if (BRW_IS_IGDNG(brw))
+      if (intel->gen == 5)
          clip.thread4.max_threads = 16 - 1;        
       else
          clip.thread4.max_threads = 2 - 1;
@@ -117,13 +123,14 @@ clip_unit_create_from_key(struct brw_context *brw,
    clip.clip5.userclip_enable_flags = 0x7f;
    clip.clip5.userclip_must_clip = 1;
    clip.clip5.guard_band_enable = 0;
-   clip.clip5.viewport_z_clip_enable = 1;
+   if (!key->depth_clamp)
+      clip.clip5.viewport_z_clip_enable = 1;
    clip.clip5.viewport_xy_clip_enable = 1;
    clip.clip5.vertex_position_space = BRW_CLIP_NDCSPACE;
    clip.clip5.api_mode = BRW_CLIP_API_OGL;
    clip.clip5.clip_mode = key->clip_mode;
 
-   if (BRW_IS_G4X(brw))
+   if (intel->is_g4x)
       clip.clip5.negative_w_clip_test = 1;
 
    clip.clip6.clipper_viewport_state_ptr = 0;
@@ -135,8 +142,7 @@ clip_unit_create_from_key(struct brw_context *brw,
    bo = brw_upload_cache(&brw->cache, BRW_CLIP_UNIT,
                         key, sizeof(*key),
                         &brw->clip.prog_bo, 1,
-                        &clip, sizeof(clip),
-                        NULL, NULL);
+                        &clip, sizeof(clip));
 
    /* Emit clip program relocation */
    assert(brw->clip.prog_bo);
@@ -168,7 +174,7 @@ static void upload_clip_unit( struct brw_context *brw )
 
 const struct brw_tracked_state brw_clip_unit = {
    .dirty = {
-      .mesa  = 0,
+      .mesa  = _NEW_TRANSFORM,
       .brw   = (BRW_NEW_CURBE_OFFSETS |
                BRW_NEW_URB_FENCE),
       .cache = CACHE_NEW_CLIP_PROG