From 85fecbb10bab98f5ff770906069bfd495cc1bcc8 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Sat, 18 Mar 2023 20:47:24 +0100
Subject: [PATCH] video: fix warnings about unused variables when building
without duff's loop
(cherry picked from commit 0c3777d5661dd0bf60ba3db634f79c2121371092)
---
src/video/SDL_blit_A.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/video/SDL_blit_A.c b/src/video/SDL_blit_A.c
index 9517cb4c6d61..eae1706b89a5 100644
--- a/src/video/SDL_blit_A.c
+++ b/src/video/SDL_blit_A.c
@@ -868,6 +868,7 @@ static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info)
int dstskip = info->dst_skip >> 1;
Uint32 s, d;
+#ifdef USE_DUFFS_LOOP
__m64 src1, dst1, src2, dst2, gmask, bmask, mm_res, mm_alpha;
alpha &= ~(1 + 2 + 4); /* cut alpha to get the exact same behaviour */
@@ -883,6 +884,7 @@ static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info)
/* Setup the 565 color channel masks */
gmask = _mm_set_pi32(0x07E007E0, 0x07E007E0); /* MASKGREEN -> gmask */
bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */
+#endif
while (height--) {
/* *INDENT-OFF* */ /* clang-format off */
@@ -1004,6 +1006,7 @@ static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info)
int dstskip = info->dst_skip >> 1;
Uint32 s, d;
+#ifdef USE_DUFFS_LOOP
__m64 src1, dst1, src2, dst2, rmask, gmask, bmask, mm_res, mm_alpha;
alpha &= ~(1 + 2 + 4); /* cut alpha to get the exact same behaviour */
@@ -1020,7 +1023,7 @@ static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info)
rmask = _mm_set_pi32(0x7C007C00, 0x7C007C00); /* MASKRED -> rmask */
gmask = _mm_set_pi32(0x03E003E0, 0x03E003E0); /* MASKGREEN -> gmask */
bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */
-
+#endif
while (height--) {
/* *INDENT-OFF* */ /* clang-format off */
DUFFS_LOOP_124(