From c08c35df698bcd142c99b49e639f4862bc394bab Mon Sep 17 00:00:00 2001
From: mittorn <mittorn@sibmail.com>
Date: Thu, 4 Apr 2019 04:44:06 +0700
Subject: [PATCH] ref_soft: FillRGBA, FillRGBABlend

---
 r_context.c |  8 ++++--
 r_draw.c    | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++---
 r_local.h   |  2 +-
 r_misc.c    |  2 --
 4 files changed, 82 insertions(+), 8 deletions(-)

diff --git a/r_context.c b/r_context.c
index b9e32f1d..69855083 100644
--- a/r_context.c
+++ b/r_context.c
@@ -106,7 +106,9 @@ CL_FillRGBA
 */
 static void CL_FillRGBA( float _x, float _y, float _w, float _h, int r, int g, int b, int a )
 {
-
+	vid.rendermode = kRenderTransAdd;
+	_TriColor4ub(r,g,b,a);
+	Draw_Fill(_x,_y,_w,_h);
 }
 
 /*
@@ -117,7 +119,9 @@ pfnFillRGBABlend
 */
 static void GAME_EXPORT CL_FillRGBABlend( float _x, float _y, float _w, float _h, int r, int g, int b, int a )
 {
-
+	vid.rendermode = kRenderTransAlpha;
+	_TriColor4ub(r,g,b,a);
+	Draw_Fill(_x,_y,_w,_h);
 }
 
 
diff --git a/r_draw.c b/r_draw.c
index 8cd3c79b..06117f3b 100644
--- a/r_draw.c
+++ b/r_draw.c
@@ -199,10 +199,82 @@ void R_DrawStretchPic( float x, float y, float w, float h, float s1, float t1, f
 	R_DrawStretchPicImplementation(x,y,w,h, pic->width * s1, pic->height * t1, pic->width * s2, pic->height * t2, pic);
 }
 
-void Draw_Fill (int x, int y, int w, int h, int c)
+void Draw_Fill (int x, int y, int w, int h)
 {
-	// todo: color
-	R_DrawStretchPicImplementation(x,y,w,h, 0, 0, 12, 1, tr.whiteTexture );
+	pixel_t *dest;
+	unsigned int				v, u;
+	unsigned int				height;
+	int				skip;
+	pixel_t src = vid.color;
+	int alpha = vid.alpha;
+
+	if( x < 0 )
+		x = 0;
+
+	if( x + w > vid.width )
+		w = vid.width - x;
+
+	if( y + h > vid.height )
+		h = vid.height - y;
+
+	height = h;
+	if (y < 0)
+	{
+		skip = -y;
+		height += y;
+		y = 0;
+	}
+	else
+		skip = 0;
+
+	dest = vid.buffer + y * vid.rowbytes + x;
+
+	#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
+
+		{
+
+#if 0
+			for (u=0 ; u<w ; u+=4)
+			{
+				dest[u] = source[f>>16];
+				f += fstep;
+				dest[u+1] = source[f>>16];
+				f += fstep;
+				dest[u+2] = source[f>>16];
+				f += fstep;
+				dest[u+3] = source[f>>16];
+				f += fstep;
+			}
+#else
+			for (u=0 ; u<w ; u++)
+			{
+				if( alpha == 0 )
+					continue;
+
+				if( vid.rendermode == kRenderTransAdd)
+				{
+					pixel_t screen = dest[u];
+					dest[u] = vid.addmap[src & 0xff00|(screen>>8)] << 8 | (screen & 0xff) | ((src & 0xff) >> 0);
+				}
+				else if( alpha < 7) // && (vid.rendermode == kRenderTransAlpha || vid.rendermode == kRenderTransTexture ) )
+				{
+					pixel_t screen = dest[u]; //  | 0xff & screen & src ;
+					dest[u] = BLEND_ALPHA( alpha, src, screen);//vid.alphamap[( alpha << 16)|(src & 0xff00)|(screen>>8)] << 8 | (screen & 0xff) >> 3 | ((src & 0xff) >> 3);
+
+				}
+				else
+					dest[u] = src;
+
+			}
+#endif
+		}
+		dest += vid.rowbytes;
+	}
 }
 
 /*
diff --git a/r_local.h b/r_local.h
index 7906dfc5..485a0a04 100644
--- a/r_local.h
+++ b/r_local.h
@@ -1252,7 +1252,7 @@ void D_FlushCaches( qboolean newmap );
 //
 // r_draw.c
 //
-void Draw_Fill (int x, int y, int w, int h, int c);
+void Draw_Fill (int x, int y, int w, int h);
 
 //
 // r_misc.c
diff --git a/r_misc.c b/r_misc.c
index e4e3f3fe..7bbb66e2 100644
--- a/r_misc.c
+++ b/r_misc.c
@@ -111,8 +111,6 @@ void D_ViewChanged (void)
 	if ( !RI.drawWorld )
 	{
 		memset( d_pzbuffer, 0xff, vid.width * vid.height * sizeof( d_pzbuffer[0] ) );
-		// newrefdef
-		Draw_Fill( 0, 0, gpGlobals->width, gpGlobals->height,( int ) sw_clearcolor->value & 0xff );
 	}
 
 	D_Patch ();