From 1a0ccf6a922fdf971d079ea57540a593ca67c89c Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Thu, 26 Apr 2012 10:29:21 +0900
Subject: [PATCH] Add vec = quat * vec to the progs engine.

---
 include/QF/pr_comp.h      | 3 ++-
 libs/gamecode/pr_exec.c   | 3 +++
 libs/gamecode/pr_opcode.c | 4 ++++
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/include/QF/pr_comp.h b/include/QF/pr_comp.h
index 15e059a01..a77de136e 100644
--- a/include/QF/pr_comp.h
+++ b/include/QF/pr_comp.h
@@ -270,6 +270,7 @@ typedef enum {
 	OP_MUL_Q,
 	OP_MUL_QF,
 	OP_MUL_FQ,
+	OP_MUL_QV,
 	OP_CONJ_Q,
 	OP_NOT_Q,
 	OP_EQ_Q,
@@ -362,7 +363,7 @@ typedef struct pr_va_list_s {
 	 |(((0x##b) & 0xfff) << 12)		\
 	 |(((0x##c) & 0xfff) <<  0) )
 #define	PROG_ID_VERSION	6
-#define	PROG_VERSION	PROG_VERSION_ENCODE(0,fff,008)
+#define	PROG_VERSION	PROG_VERSION_ENCODE(0,fff,009)
 
 typedef struct dprograms_s {
 	pr_uint_t   version;
diff --git a/libs/gamecode/pr_exec.c b/libs/gamecode/pr_exec.c
index 3ff0a094e..5a6ab01c4 100644
--- a/libs/gamecode/pr_exec.c
+++ b/libs/gamecode/pr_exec.c
@@ -431,6 +431,9 @@ PR_ExecuteProgram (progs_t * pr, func_t fnum)
 			case OP_MUL_Q:
 				QuatMult (OPA.quat_var, OPB.quat_var, OPC.quat_var);
 				break;
+			case OP_MUL_QV:
+				QuatMultVec (OPA.quat_var, OPB.vector_var, OPC.vector_var);
+				break;
 			case OP_MUL_FQ:
 				QuatScale (OPB.quat_var, OPA.float_var, OPC.quat_var);
 				break;
diff --git a/libs/gamecode/pr_opcode.c b/libs/gamecode/pr_opcode.c
index 9cbdbf172..f536c2895 100644
--- a/libs/gamecode/pr_opcode.c
+++ b/libs/gamecode/pr_opcode.c
@@ -128,6 +128,10 @@ VISIBLE opcode_t pr_opcodes[] = {
 	 ev_quat, ev_float, ev_quat,
 	 PROG_VERSION,
 	},
+	{"*", "mul.qv", OP_MUL_QV, false,
+	 ev_quat, ev_vector, ev_vector,
+	 PROG_VERSION,
+	},
 
 	{"~", "conj.q", OP_CONJ_Q, false,
 	 ev_quat, ev_invalid, ev_quat,