sna/gen2+: Use the reduced operator from CompositeRectangles

Do not attempt to further reduce the operator locally in each backend as
the reduction is already performed in the upper layer.

References: https://bugs.freedesktop.org/show_bug.cgi?id=42606
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

src/sna/gen2_render.c

@@ -2348,30 +2348,24 @@ gen2_render_fill_boxes_try_blt(struct sna *sna,
 			       PixmapPtr dst, struct kgem_bo *dst_bo,
 			       const BoxRec *box, int n)
 {
-	uint8_t alu = GXcopy;
+	uint8_t alu;
 	uint32_t pixel;
 
-	if (!sna_get_pixel_from_rgba(&pixel,
-				     color->red,
-				     color->green,
-				     color->blue,
-				     color->alpha,
-				     format))
+	if (op > PictOpSrc)
 		return FALSE;
 
 	if (op == PictOpClear) {
 		alu = GXclear;
 		pixel = 0;
-		op = PictOpSrc;
-	}
-
-	if (op == PictOpOver) {
-		if ((pixel & 0xff000000) == 0xff000000)
-			op = PictOpSrc;
-	}
-
-	if (op != PictOpSrc)
+	} else if (!sna_get_pixel_from_rgba(&pixel,
+					    color->red,
+					    color->green,
+					    color->blue,
+					    color->alpha,
+					    format))
 		return FALSE;
+	else
+		alu = GXcopy;
 
 	return sna_blt_fill_boxes(sna, alu,
 				  dst_bo, dst->drawable.bitsPerPixel,

src/sna/gen3_render.c

@@ -4153,7 +4153,7 @@ gen3_render_fill_boxes_try_blt(struct sna *sna,
 			       PixmapPtr dst, struct kgem_bo *dst_bo,
 			       const BoxRec *box, int n)
 {
-	uint8_t alu = GXcopy;
+	uint8_t alu;
 	uint32_t pixel;
 
 	if (dst_bo->tiling == I915_TILING_Y) {
@@ -4162,36 +4162,21 @@ gen3_render_fill_boxes_try_blt(struct sna *sna,
 		return FALSE;
 	}
 
-	if (color->alpha >= 0xff00) {
-		if (op == PictOpOver)
-			op = PictOpSrc;
-		else if (op == PictOpOutReverse)
-			op = PictOpClear;
-		else if (op == PictOpAdd &&
-			 (color->red & color->green & color->blue) >= 0xff00)
-			op = PictOpSrc;
-	}
+	if (op > PictOpSrc)
+		return FALSE;
 
-	pixel = 0;
 	if (op == PictOpClear) {
 		alu = GXclear;
-	} else if (op == PictOpSrc) {
-		if (color->alpha <= 0x00ff)
-			alu = GXclear;
-		else if (!sna_get_pixel_from_rgba(&pixel,
-						  color->red,
-						  color->green,
-						  color->blue,
-						  color->alpha,
-						  format)) {
-			DBG(("%s: unknown format %x\n", __FUNCTION__,
-			     (uint32_t)format));
-			return FALSE;
-		}
-	} else {
-		DBG(("%s: unhandle op %d\n", __FUNCTION__, alu));
+		pixel = 0;
+	} else if (!sna_get_pixel_from_rgba(&pixel,
+					    color->red,
+					    color->green,
+					    color->blue,
+					    color->alpha,
+					    format))
 		return FALSE;
-	}
+	else
+		alu = GXcopy;
 
 	return sna_blt_fill_boxes(sna, alu,
 				  dst_bo, dst->drawable.bitsPerPixel,

src/sna/gen4_render.c

@@ -2901,29 +2901,24 @@ gen4_render_fill_boxes(struct sna *sna,
 		return FALSE;
 	}
 
-	if (prefer_blt(sna) ||
-	    too_large(dst->drawable.width, dst->drawable.height) ||
-	    !gen4_check_dst_format(format)) {
+	if (op <= PictOpSrc &&
+	    (prefer_blt(sna) ||
+	     too_large(dst->drawable.width, dst->drawable.height) ||
+	     !gen4_check_dst_format(format))) {
 		uint8_t alu = -1;
 
-		if (op == PictOpClear || (op == PictOpOutReverse && color->alpha >= 0xff00))
-			alu = GXclear;
-
-		if (op == PictOpSrc || (op == PictOpOver && color->alpha >= 0xff00)) {
-			alu = GXcopy;
-			if (color->alpha <= 0x00ff)
-				alu = GXclear;
-		}
-
 		pixel = 0;
-		if ((alu == GXclear ||
-		     (alu == GXcopy &&
-		      sna_get_pixel_from_rgba(&pixel,
-					      color->red,
-					      color->green,
-					      color->blue,
-					      color->alpha,
-					      format))) &&
+		if (op == PictOpClear)
+			alu = GXclear;
+		else if (sna_get_pixel_from_rgba(&pixel,
+						 color->red,
+						 color->green,
+						 color->blue,
+						 color->alpha,
+						 format))
+			alu = GXcopy;
+
+		if (alu != -1 &&
 		    sna_blt_fill_boxes(sna, alu,
 				       dst_bo, dst->drawable.bitsPerPixel,
 				       pixel, box, n))

src/sna/gen5_render.c

@@ -3241,29 +3241,24 @@ gen5_render_fill_boxes(struct sna *sna,
 		return FALSE;
 	}
 
-	if (prefer_blt_fill(sna) ||
-	    too_large(dst->drawable.width, dst->drawable.height) ||
-	    !gen5_check_dst_format(format)) {
+	if (op <= PictOpSrc &&
+	    (prefer_blt_fill(sna) ||
+	     too_large(dst->drawable.width, dst->drawable.height) ||
+	     !gen5_check_dst_format(format))) {
 		uint8_t alu = -1;
 
-		if (op == PictOpClear || (op == PictOpOutReverse && color->alpha >= 0xff00))
-			alu = GXclear;
-
-		if (op == PictOpSrc || (op == PictOpOver && color->alpha >= 0xff00)) {
-			alu = GXcopy;
-			if (color->alpha <= 0x00ff)
-				alu = GXclear;
-		}
-
 		pixel = 0;
-		if ((alu == GXclear ||
-		     (alu == GXcopy &&
-		      sna_get_pixel_from_rgba(&pixel,
-					      color->red,
-					      color->green,
-					      color->blue,
-					      color->alpha,
-					      format))) &&
+		if (op == PictOpClear)
+			alu = GXclear;
+		else if (sna_get_pixel_from_rgba(&pixel,
+						 color->red,
+						 color->green,
+						 color->blue,
+						 color->alpha,
+						 format))
+			alu = GXcopy;
+
+		if (alu != -1 &&
 		    sna_blt_fill_boxes(sna, alu,
 				       dst_bo, dst->drawable.bitsPerPixel,
 				       pixel, box, n))

src/sna/gen6_render.c

@@ -3655,29 +3655,24 @@ gen6_render_fill_boxes(struct sna *sna,
 		return FALSE;
 	}
 
-	if (prefer_blt_fill(sna, dst_bo) ||
-	    too_large(dst->drawable.width, dst->drawable.height) ||
-	    !gen6_check_dst_format(format)) {
+	if (op <= PictOpSrc &&
+	    (prefer_blt_fill(sna, dst_bo) ||
+	     too_large(dst->drawable.width, dst->drawable.height) ||
+	     !gen6_check_dst_format(format))) {
 		uint8_t alu = -1;
 
-		if (op == PictOpClear || (op == PictOpOutReverse && color->alpha >= 0xff00))
-			alu = GXclear;
-
-		if (op == PictOpSrc || (op == PictOpOver && color->alpha >= 0xff00)) {
-			alu = GXcopy;
-			if (color->alpha <= 0x00ff)
-				alu = GXclear;
-		}
-
 		pixel = 0;
-		if ((alu == GXclear ||
-		     (alu == GXcopy &&
-		      sna_get_pixel_from_rgba(&pixel,
-					      color->red,
-					      color->green,
-					      color->blue,
-					      color->alpha,
-					      format))) &&
+		if (op == PictOpClear)
+			alu = GXclear;
+		else if (sna_get_pixel_from_rgba(&pixel,
+						 color->red,
+						 color->green,
+						 color->blue,
+						 color->alpha,
+						 format))
+			alu = GXcopy;
+
+		if (alu != -1 &&
 		    sna_blt_fill_boxes(sna, alu,
 				       dst_bo, dst->drawable.bitsPerPixel,
 				       pixel, box, n))

src/sna/gen7_render.c

@@ -3738,29 +3738,24 @@ gen7_render_fill_boxes(struct sna *sna,
 		return FALSE;
 	}
 
-	if (prefer_blt_fill(sna, dst_bo) ||
-	    too_large(dst->drawable.width, dst->drawable.height) ||
-	    !gen7_check_dst_format(format)) {
+	if (op <= PictOpSrc &&
+	    (prefer_blt_fill(sna, dst_bo) ||
+	     too_large(dst->drawable.width, dst->drawable.height) ||
+	     !gen7_check_dst_format(format))) {
 		uint8_t alu = -1;
 
-		if (op == PictOpClear || (op == PictOpOutReverse && color->alpha >= 0xff00))
-			alu = GXclear;
-
-		if (op == PictOpSrc || (op == PictOpOver && color->alpha >= 0xff00)) {
-			alu = GXcopy;
-			if (color->alpha <= 0x00ff)
-				alu = GXclear;
-		}
-
 		pixel = 0;
-		if ((alu == GXclear ||
-		     (alu == GXcopy &&
-		      sna_get_pixel_from_rgba(&pixel,
-					      color->red,
-					      color->green,
-					      color->blue,
-					      color->alpha,
-					      format))) &&
+		if (op == PictOpClear)
+			alu = GXclear;
+		else if (sna_get_pixel_from_rgba(&pixel,
+						 color->red,
+						 color->green,
+						 color->blue,
+						 color->alpha,
+						 format))
+			alu = GXcopy;
+
+		if (alu != -1 &&
 		    sna_blt_fill_boxes(sna, alu,
 				       dst_bo, dst->drawable.bitsPerPixel,
 				       pixel, box, n))