From: Keith Packard <keithp@keithp.com>
Date: Fri, 25 Apr 2008 23:07:12 +0000 (-0700)
Subject: [i965] short immediate values must be replicated to both halves of the dword
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ca73488f48e3ee278f0185bb7dcc03d7bdedb62d;p=mesa.git

[i965] short immediate values must be replicated to both halves of the dword

The 32-bit immediate value in the i965 instruction word must contain two
copies of any 16-bit constants. brw_imm_uw and brw_imm_w just needed to
copy the value into both halves of the immediate value instruction field.
---

diff --git a/src/mesa/drivers/dri/i965/brw_eu.h b/src/mesa/drivers/dri/i965/brw_eu.h
index 25f1f896f7d..c138d15fe82 100644
--- a/src/mesa/drivers/dri/i965/brw_eu.h
+++ b/src/mesa/drivers/dri/i965/brw_eu.h
@@ -335,14 +335,14 @@ static __inline struct brw_reg brw_imm_ud( GLuint ud )
 static __inline struct brw_reg brw_imm_uw( GLushort uw )
 {
    struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_UW);
-   imm.dw1.ud = uw;
+   imm.dw1.ud = uw | (uw << 16);
    return imm;
 }
 
 static __inline struct brw_reg brw_imm_w( GLshort w )
 {
    struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_W);
-   imm.dw1.d = w;
+   imm.dw1.d = w | (w << 16);
    return imm;
 }