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authorEric Anholt <eric@anholt.net>2009-08-26 11:04:13 -0700
committerEric Anholt <eric@anholt.net>2009-09-08 14:30:18 -0700
commit0310aafd9ea502e07a86b355cfca902102b9117c (patch)
tree8453506d3c833257018de2bb352803f3365260c9 /src/mesa
parent0e5c2598ec8cd9e20cb02e2b120d5b43103b7b05 (diff)
i965: Add support for ARB_depth_clamp.
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/drivers/dri/i965/brw_cc.c8
-rw-r--r--src/mesa/drivers/dri/i965/brw_clip_state.c11
-rw-r--r--src/mesa/drivers/dri/intel/intel_extensions.c1
3 files changed, 15 insertions, 5 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_cc.c b/src/mesa/drivers/dri/i965/brw_cc.c
index c724218cf5..1088a7a607 100644
--- a/src/mesa/drivers/dri/i965/brw_cc.c
+++ b/src/mesa/drivers/dri/i965/brw_cc.c
@@ -39,12 +39,14 @@
static void prepare_cc_vp( struct brw_context *brw )
{
+ GLcontext *ctx = &brw->intel.ctx;
struct brw_cc_viewport ccv;
memset(&ccv, 0, sizeof(ccv));
- ccv.min_depth = 0.0;
- ccv.max_depth = 1.0;
+ /* _NEW_VIEWPORT */
+ ccv.min_depth = ctx->Viewport.Near;
+ ccv.max_depth = ctx->Viewport.Far;
dri_bo_unreference(brw->cc.vp_bo);
brw->cc.vp_bo = brw_cache_data( &brw->cache, BRW_CC_VP, &ccv, NULL, 0 );
@@ -52,7 +54,7 @@ static void prepare_cc_vp( struct brw_context *brw )
const struct brw_tracked_state brw_cc_vp = {
.dirty = {
- .mesa = 0,
+ .mesa = _NEW_VIEWPORT,
.brw = BRW_NEW_CONTEXT,
.cache = 0
},
diff --git a/src/mesa/drivers/dri/i965/brw_clip_state.c b/src/mesa/drivers/dri/i965/brw_clip_state.c
index 5762c9577c..234b3744bf 100644
--- a/src/mesa/drivers/dri/i965/brw_clip_state.c
+++ b/src/mesa/drivers/dri/i965/brw_clip_state.c
@@ -43,11 +43,14 @@ 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 */
@@ -62,6 +65,9 @@ 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 *
@@ -117,7 +123,8 @@ 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;
@@ -168,7 +175,7 @@ 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
diff --git a/src/mesa/drivers/dri/intel/intel_extensions.c b/src/mesa/drivers/dri/intel/intel_extensions.c
index 2e61c556d8..125ca93d7f 100644
--- a/src/mesa/drivers/dri/intel/intel_extensions.c
+++ b/src/mesa/drivers/dri/intel/intel_extensions.c
@@ -139,6 +139,7 @@ static const struct dri_extension i915_extensions[] = {
/** i965-only extensions */
static const struct dri_extension brw_extensions[] = {
+ { "GL_ARB_depth_clamp", NULL },
{ "GL_ARB_depth_texture", NULL },
{ "GL_ARB_fragment_program", NULL },
{ "GL_ARB_fragment_program_shadow", NULL },