From 932ad73441945fb1dd5b6d67dec02fb9f423a980 Mon Sep 17 00:00:00 2001
From: mittorn <mittorn@sibmail.com>
Date: Sat, 23 Mar 2019 03:25:57 +0700
Subject: [PATCH] ref_soft: Add OpenMP for blit and 2d draw

---
 r_draw.c   | 10 ++++++++--
 r_glblit.c |  1 +
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/r_draw.c b/r_draw.c
index 05f4d10b..96005f83 100644
--- a/r_draw.c
+++ b/r_draw.c
@@ -65,7 +65,7 @@ Draw_StretchPicImplementation
 */
 void R_DrawStretchPicImplementation (int x, int y, int w, int h, int s1, int t1, int s2, int t2, image_t	*pic)
 {
-	pixel_t			*dest, *source;
+	pixel_t *source, *dest;
 	unsigned int				v, u, sv;
 	unsigned int				height;
 	unsigned int				f, fstep;
@@ -104,8 +104,13 @@ void R_DrawStretchPicImplementation (int x, int y, int w, int h, int s1, int t1,
 
 	dest = vid.buffer + y * vid.rowbytes + x;
 
-	for (v=0 ; v<height ; v++, dest += vid.rowbytes)
+
+	#pragma omp parallel for schedule(static)
+	for (v=0 ; v<height ; v++)
 	{
+#ifdef	_OPENMP
+		pixel_t			*dest = vid.buffer + (y + v) * vid.rowbytes + x;
+#endif
 		sv = (skip + v)*(t2-t1)/h + t1;
 		source = pic->pixels[0] + sv*pic->width + s1;
 		{
@@ -161,6 +166,7 @@ void R_DrawStretchPicImplementation (int x, int y, int w, int h, int s1, int t1,
 			}
 #endif
 		}
+		dest += vid.rowbytes;
 	}
 }
 
diff --git a/r_glblit.c b/r_glblit.c
index 636fd640..f3eb4f1d 100644
--- a/r_glblit.c
+++ b/r_glblit.c
@@ -179,6 +179,7 @@ void R_BlitScreen()
 	int i;
 	byte *buf = vid.buffer;
 
+	#pragma omp parallel for schedule(static)
 	for( i = 0; i < vid.width * vid.height;i++)
 	{
 #ifdef SEPARATE_BLIT