From: Christoph Bumiller <e0425955@student.tuwien.ac.at>
Date: Sat, 23 May 2009 10:25:32 +0000 (+0200)
Subject: nv50: save some space in immediate buffer
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7e7d3a87ec60f8e412d724c6586461501d420ec0;p=mesa.git

nv50: save some space in immediate buffer

We could do even better (like just allocating 1 value in alloc_immd),
but that's fine for now I guess.
---

diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c
index 2241801542e..40d2384c3e2 100644
--- a/src/gallium/drivers/nv50/nv50_program.c
+++ b/src/gallium/drivers/nv50/nv50_program.c
@@ -250,7 +250,13 @@ alloc_immd(struct nv50_pc *pc, float f)
 	struct nv50_reg *r = CALLOC_STRUCT(nv50_reg);
 	unsigned hw;
 
-	hw = ctor_immd(pc, f, 0, 0, 0) * 4;
+	for (hw = 0; hw < pc->immd_nr * 4; hw++)
+		if (pc->immd_buf[hw] == f)
+			break;
+
+	if (hw == pc->immd_nr * 4)
+		hw = ctor_immd(pc, f, -f, 0.5 * f, 0) * 4;
+
 	r->type = P_IMMD;
 	r->hw = hw;
 	r->index = -1;