ref_soft: Studio alpha blending

r_draw.c

@@ -166,7 +166,7 @@ void R_DrawStretchPicImplementation (int x, int y, int w, int h, int s1, int t1,
 					pixel_t screen = dest[u];
 					dest[u] = vid.addmap[src & 0xff00|(screen>>8)] << 8 | (screen & 0xff) | ((src & 0xff) >> 0);
 				}
-				else if( alpha < 0) // && (vid.rendermode == kRenderTransAlpha || vid.rendermode == kRenderTransTexture ) )
+				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);

r_main.c

@@ -1023,6 +1023,8 @@ void R_DrawEntitiesOnList( void )
 	//RI.currententity = gEngfuncs.GetEntityByIndex(0);
 	extern void	(*d_pdrawspans)(void *);
 	extern void R_PolysetFillSpans8 ( void * );
+	extern void R_PolysetDrawSpansConstant8_33( void *pspanpackage);
+	extern void R_PolysetDrawSpans8_33( void *pspanpackage);
 	d_pdrawspans = R_PolysetFillSpans8;
 	// first draw solid entities
 	for( i = 0; i < tr.draw_list->num_solid_entities && !RI.onlyClientDraw; i++ )
@@ -1109,7 +1111,7 @@ void R_DrawEntitiesOnList( void )
 		gEngfuncs.pfnDrawNormalTriangles();
 
 //	GL_CheckForErrors();
-
+	d_pdrawspans = R_PolysetDrawSpans8_33;
 	// then draw translucent entities
 	for( i = 0; i < tr.draw_list->num_trans_entities && !RI.onlyClientDraw; i++ )
 	{
@@ -1166,6 +1168,7 @@ void R_DrawEntitiesOnList( void )
 	//GL_CheckForErrors();
 
 //	pglDisable( GL_BLEND );	// Trinity Render issues
+	d_pdrawspans = R_PolysetFillSpans8;
 
 	R_SetUpWorldTransform();
 	if( !RI.onlyClientDraw )

r_poly.c

@@ -62,7 +62,7 @@ static void R_DrawPoly( qboolean iswater );
 */
 void R_DrawSpanletOpaque( void )
 {
-	unsigned btemp;
+	pixel_t btemp;
 
 	do
 	{
@@ -94,7 +94,7 @@ void R_DrawSpanletOpaque( void )
 */
 void R_DrawSpanletTurbulentStipple33( void )
 {
-	unsigned btemp;
+	pixel_t btemp;
 	int	     sturb, tturb;
 	pixel_t    *pdest = s_spanletvars.pdest;
 	short   *pz    = s_spanletvars.pz;
@@ -151,7 +151,7 @@ void R_DrawSpanletTurbulentStipple33( void )
 */
 void R_DrawSpanletTurbulentStipple66( void )
 {
-	unsigned btemp;
+	pixel_t btemp;
 	int	     sturb, tturb;
 	pixel_t    *pdest = s_spanletvars.pdest;
 	short   *pz    = s_spanletvars.pz;
@@ -238,7 +238,7 @@ void R_DrawSpanletTurbulentStipple66( void )
 */
 void R_DrawSpanletTurbulentBlended66( void )
 {
-	unsigned btemp;
+	pixel_t btemp;
 	int	     sturb, tturb;
 
 	do
@@ -267,7 +267,7 @@ void R_DrawSpanletTurbulentBlended66( void )
 
 void R_DrawSpanletTurbulentBlended33( void )
 {
-	unsigned btemp;
+	pixel_t btemp;
 	int	     sturb, tturb;
 
 	do
@@ -299,7 +299,7 @@ void R_DrawSpanletTurbulentBlended33( void )
 */
 void R_DrawSpanlet33( void )
 {
-	unsigned btemp;
+	pixel_t btemp;
 
 	do
 	{
@@ -310,7 +310,7 @@ void R_DrawSpanlet33( void )
 
 		btemp = *(s_spanletvars.pbase + (ts) + (tt) * cachewidth);
 
-		if ( btemp != 255 )
+		if ( btemp != TRANSPARENT_COLOR )
 		{
 			if (*s_spanletvars.pz <= (s_spanletvars.izi >> 16))
 			{
@@ -350,7 +350,7 @@ void R_DrawSpanletConstant33( void )
 */
 void R_DrawSpanlet66( void )
 {
-	unsigned btemp;
+	pixel_t btemp;
 
 	do
 	{
@@ -361,7 +361,7 @@ void R_DrawSpanlet66( void )
 
 		btemp = *(s_spanletvars.pbase + (ts) + (tt) * cachewidth);
 
-		if ( btemp != 255 )
+		if ( btemp != TRANSPARENT_COLOR )
 		{
 			if (*s_spanletvars.pz <= (s_spanletvars.izi >> 16))
 			{
@@ -386,7 +386,7 @@ void R_DrawSpanlet66( void )
 */
 void R_DrawSpanlet33Stipple( void )
 {
-	unsigned btemp;
+	pixel_t btemp;
 	pixel_t    *pdest = s_spanletvars.pdest;
 	short   *pz    = s_spanletvars.pz;
 	int      izi   = s_spanletvars.izi;
@@ -422,7 +422,7 @@ void R_DrawSpanlet33Stipple( void )
 
 			btemp = *( s_spanletvars.pbase + ( s ) + ( t * cachewidth ) );
 			
-			if ( btemp != 255 )
+			if ( btemp != TRANSPARENT_COLOR )
 			{
 				if ( *pz <= ( izi >> 16 ) )
 					*pdest = btemp;
@@ -445,7 +445,7 @@ void R_DrawSpanlet33Stipple( void )
 */
 void R_DrawSpanlet66Stipple( void )
 {
-	unsigned btemp;
+	pixel_t btemp;
 	pixel_t    *pdest = s_spanletvars.pdest;
 	short   *pz    = s_spanletvars.pz;
 	int      izi   = s_spanletvars.izi;
@@ -481,7 +481,7 @@ void R_DrawSpanlet66Stipple( void )
 			
 			btemp = *( s_spanletvars.pbase + ( s ) + ( t * cachewidth ) );
 
-			if ( btemp != 255 )
+			if ( btemp != TRANSPARENT_COLOR )
 			{
 				if ( *pz <= ( izi >> 16 ) )
 					*pdest = btemp;
@@ -506,7 +506,7 @@ void R_DrawSpanlet66Stipple( void )
 			
 			btemp = *( s_spanletvars.pbase + ( s ) + ( t * cachewidth ) );
 			
-			if ( btemp != 255 )
+			if ( btemp != TRANSPARENT_COLOR )
 			{
 				if ( *pz <= ( izi >> 16 ) )
 					*pdest = btemp;

r_polyse.c

@@ -820,8 +820,8 @@ R_PolysetDrawSpans8
 void R_PolysetDrawSpans8_33( spanpackage_t *pspanpackage)
 {
 	int		lcount;
-	byte	*lpdest;
-	byte	*lptex;
+	pixel_t	*lpdest;
+	pixel_t	*lptex;
 	int		lsfrac, ltfrac;
 	int		llight;
 	int		lzi;
@@ -856,9 +856,13 @@ void R_PolysetDrawSpans8_33( spanpackage_t *pspanpackage)
 			{
 				if ((lzi >> 16) >= *lpz)
 				{
-					int temp = vid.colormap[*lptex + ( llight & 0xFF00 )];
+					pixel_t temp = *lptex;//vid.colormap[*lptex + ( llight & 0xFF00 )];
 
-					*lpdest = vid.alphamap[temp+ *lpdest*256];
+					int alpha = tr.blend * 7;
+					if( alpha == 7 )
+						*lpdest = temp;
+					else if(alpha)
+						*lpdest = BLEND_ALPHA(alpha,temp,*lpdest);//vid.alphamap[temp+ *lpdest*256];
 				}
 				lpdest++;
 				lzi += r_zistepx;
@@ -884,7 +888,7 @@ void R_PolysetDrawSpans8_33( spanpackage_t *pspanpackage)
 void R_PolysetDrawSpansConstant8_33( spanpackage_t *pspanpackage)
 {
 	int		lcount;
-	byte	*lpdest;
+	pixel_t	*lpdest;
 	int		lzi;
 	short	*lpz;
 
@@ -913,7 +917,7 @@ void R_PolysetDrawSpansConstant8_33( spanpackage_t *pspanpackage)
 			{
 				if ((lzi >> 16) >= *lpz)
 				{
-					*lpdest = vid.alphamap[r_aliasblendcolor + *lpdest*256];
+					*lpdest = BLEND_ALPHA(2,r_aliasblendcolor,*lpdest);//vid.alphamap[r_aliasblendcolor + *lpdest*256];
 				}
 				lpdest++;
 				lzi += r_zistepx;
@@ -928,8 +932,8 @@ void R_PolysetDrawSpansConstant8_33( spanpackage_t *pspanpackage)
 void R_PolysetDrawSpans8_66(spanpackage_t *pspanpackage)
 {
 	int		lcount;
-	byte	*lpdest;
-	byte	*lptex;
+	pixel_t	*lpdest;
+	pixel_t	*lptex;
 	int		lsfrac, ltfrac;
 	int		llight;
 	int		lzi;
@@ -966,7 +970,7 @@ void R_PolysetDrawSpans8_66(spanpackage_t *pspanpackage)
 				{
 					int temp = vid.colormap[*lptex + ( llight & 0xFF00 )];
 
-					*lpdest = vid.alphamap[temp*256 + *lpdest];
+					*lpdest = BLEND_ALPHA(5,temp,*lpdest);//vid.alphamap[temp*256 + *lpdest];
 					*lpz = lzi >> 16;
 				}
 				lpdest++;
@@ -993,7 +997,7 @@ void R_PolysetDrawSpans8_66(spanpackage_t *pspanpackage)
 void R_PolysetDrawSpansConstant8_66( spanpackage_t *pspanpackage)
 {
 	int		lcount;
-	byte	*lpdest;
+	pixel_t	*lpdest;
 	int		lzi;
 	short	*lpz;
 
@@ -1022,7 +1026,7 @@ void R_PolysetDrawSpansConstant8_66( spanpackage_t *pspanpackage)
 			{
 				if ((lzi >> 16) >= *lpz)
 				{
-					*lpdest = vid.alphamap[r_aliasblendcolor*256 + *lpdest];
+					*lpdest = BLEND_ALPHA(5,r_aliasblendcolor,*lpdest);//vid.alphamap[r_aliasblendcolor*256 + *lpdest];
 				}
 				lpdest++;
 				lzi += r_zistepx;
@@ -1219,7 +1223,7 @@ void R_PolysetFillSpans8 (spanpackage_t *pspanpackage)
 			} while (--lcount);
 		}
 
-		pspanpackage++;
+		pspanpackage ++;
 	} while (pspanpackage->count != -999999);
 }
 #endif