diff --git a/src/servers/app/server/Painter/drawing_modes/DrawingModeBlend.h b/src/servers/app/server/Painter/drawing_modes/DrawingModeBlend.h
index e978faf29b..a63bdbdd01 100644
--- a/src/servers/app/server/Painter/drawing_modes/DrawingModeBlend.h
+++ b/src/servers/app/server/Painter/drawing_modes/DrawingModeBlend.h
@@ -27,12 +27,12 @@ assign_blend(uint8* d1, uint8* d2, uint8* d3, uint8* da,
 	*d1 = (*d1 + s1) >> 1;
 	*d2 = (*d2 + s2) >> 1;
 	*d3 = (*d3 + s3) >> 1;
+	*da = 255;
 }
 
 
 namespace agg
 {
-	//====================================================DrawingModeBlend
 	template<class Order>
 	class DrawingModeBlend : public DrawingMode
 	{
@@ -45,32 +45,27 @@ namespace agg
 		{
 		}
 
-		//--------------------------------------------------------------------
+		// blend_pixel
 		virtual	void blend_pixel(int x, int y, const color_type& c, int8u cover)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
 			rgb_color color = fPatternHandler->R5ColorAt(x, y);
-			if(cover)
-			{
+			if (cover == 255) {
 				assign_blend(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 							 color.red, color.green, color.blue);
-			}
-			else
-			{
+			} else {
 				blend_blend(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 							color.red, color.green, color.blue, cover);
 			}
 		}
 
-		//--------------------------------------------------------------------
+		// blend_hline
 		virtual	void blend_hline(int x, int y, unsigned len, 
 								 const color_type& c, int8u cover)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			if(cover == 255)
-			{
-				do
-				{
+			if (cover == 255) {
+				do {
 					rgb_color color = fPatternHandler->R5ColorAt(x, y);
 
 					assign_blend(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
@@ -78,13 +73,9 @@ namespace agg
 
 					p += 4;
 					x++;
-				}
-				while(--len);
-			}
-			else
-			{
-				do
-				{
+				} while(--len);
+			} else {
+				do {
 					rgb_color color = fPatternHandler->R5ColorAt(x, y);
 
 					blend_blend(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
@@ -92,35 +83,29 @@ namespace agg
 
 					x++;
 					p += 4;
-				}
-				while(--len);
+				} while(--len);
 			}
 		}
 
-		//--------------------------------------------------------------------
+		// blend_vline
 		virtual	void blend_vline(int x, int y, unsigned len, 
 								 const color_type& c, int8u cover)
 		{
 printf("DrawingModeBlend::blend_vline()\n");
 		}
 
-		//--------------------------------------------------------------------
+		// blend_solid_hspan
 		virtual	void blend_solid_hspan(int x, int y, unsigned len, 
 									   const color_type& c, const int8u* covers)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
+			do {
 				rgb_color color = fPatternHandler->R5ColorAt(x, y);
-				if(*covers)
-				{
-					if(*covers == 255)
-					{
+				if (*covers) {
+					if (*covers == 255) {
 						assign_blend(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 									 color.red, color.green, color.blue);
-					}
-					else
-					{
+					} else {
 						blend_blend(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 									color.red, color.green, color.blue, *covers);
 					}
@@ -128,29 +113,23 @@ printf("DrawingModeBlend::blend_vline()\n");
 				covers++;
 				p += 4;
 				x++;
-			}
-			while(--len);
+			} while(--len);
 		}
 
 
 
-		//--------------------------------------------------------------------
+		// blend_solid_vspan
 		virtual	void blend_solid_vspan(int x, int y, unsigned len, 
 									   const color_type& c, const int8u* covers)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
+			do {
 				rgb_color color = fPatternHandler->R5ColorAt(x, y);
-				if(*covers)
-				{
-					if(*covers == 255)
-					{
+				if (*covers) {
+					if (*covers == 255) {
 						assign_blend(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 									 color.red, color.green, color.blue);
-					}
-					else
-					{
+					} else {
 						blend_blend(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 									color.red, color.green, color.blue, *covers);
 					}
@@ -158,39 +137,52 @@ printf("DrawingModeBlend::blend_vline()\n");
 				covers++;
 				p += m_rbuf->stride();
 				y++;
-			}
-			while(--len);
+			} while(--len);
 		}
 
 
-		//--------------------------------------------------------------------
+		// blend_color_hspan
 		virtual	void blend_color_hspan(int x, int y, unsigned len, 
 									   const color_type* colors, 
 									   const int8u* covers,
 									   int8u cover)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
-				uint8 alpha = covers ? *covers++ : cover;
-
-				if(alpha)
-				{
-					if(alpha == 255)
-					{
+			if (covers) {
+				// non-solid opacity
+				do {
+					if (*covers) {
+						if (*covers == 255) {
+							assign_blend(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+										 colors->r, colors->g, colors->b);
+						} else {
+							blend_blend(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+										colors->r, colors->g, colors->b, *covers);
+						}
+					}
+					covers++;
+					p += 4;
+					++colors;
+				} while(--len);
+			} else {
+				// solid full opcacity
+				if (cover == 255) {
+					do {
 						assign_blend(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 									 colors->r, colors->g, colors->b);
-					}
-					else
-					{
+						p += 4;
+						++colors;
+					} while(--len);
+				// solid partial opacity
+				} else if (cover) {
+					do {
 						blend_blend(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
-									colors->r, colors->g, colors->b, alpha);
-					}
+									colors->r, colors->g, colors->b, cover);
+						p += 4;
+						++colors;
+					} while(--len);
 				}
-				p += 4;
-				++colors;
 			}
-			while(--len);
 		}
 
 
diff --git a/src/servers/app/server/Painter/drawing_modes/DrawingModeCopy.h b/src/servers/app/server/Painter/drawing_modes/DrawingModeCopy.h
index c8dbe25fc7..f73c65c9d6 100644
--- a/src/servers/app/server/Painter/drawing_modes/DrawingModeCopy.h
+++ b/src/servers/app/server/Painter/drawing_modes/DrawingModeCopy.h
@@ -4,235 +4,199 @@
 #define DRAWING_MODE_COPY_H
 
 #include "DrawingMode.h"
-#include "PatternHandler.h"
+
+// blend_copy
+inline void
+blend_copy(uint8* d1, uint8* d2, uint8* d3, uint8* da,
+		   uint8 s1, uint8 s2, uint8 s3, uint8 a)
+{
+	blend(d1, d2, d3, da, s1, s2, s3, a);
+}
+
+// assign_copy
+inline void
+assign_copy(uint8* d1, uint8* d2, uint8* d3, uint8* da,
+			uint8 s1, uint8 s2, uint8 s3)
+{
+	*d1 = s1;
+	*d2 = s2;
+	*d3 = s3;
+	*da = 255;
+}
+
 
 namespace agg
 {
-	//====================================================DrawingModeCopy
 	template<class Order>
 	class DrawingModeCopy : public DrawingMode
 	{
 	public:
 		typedef Order order_type;
 
-		//--------------------------------------------------------------------
+		// constructor
 		DrawingModeCopy()
 			: DrawingMode()
 		{
 		}
 
-		//--------------------------------------------------------------------
+		// blend_pixel
 		virtual	void blend_pixel(int x, int y, const color_type& c, int8u cover)
 		{
-//printf("DrawingModeCopy::blend_pixel()\n");
 			int8u* p = m_rbuf->row(y) + (x << 2);
 			rgb_color color = fPatternHandler->R5ColorAt(x, y);
-//			int alpha = int(cover) * int(c.a);
-			int alpha = int(cover) * int(color.alpha);
-			if(alpha == 255*255)
-			{
-//				p[Order::R] = (int8u)c.r;
-//				p[Order::G] = (int8u)c.g;
-//				p[Order::B] = (int8u)c.b;
-//				p[Order::A] = (int8u)c.a;
-
-				p[Order::R] = color.red;
-				p[Order::G] = color.green;
-				p[Order::B] = color.blue;
-				p[Order::A] = color.alpha;
-			}
-			else
-			{
-				int r = p[Order::R];
-				int g = p[Order::G];
-				int b = p[Order::B];
-				int a = p[Order::A];
-//				p[Order::R] = (int8u)((((c.r - r) * alpha) + (r << 16)) >> 16);
-//				p[Order::G] = (int8u)((((c.g - g) * alpha) + (g << 16)) >> 16);
-//				p[Order::B] = (int8u)((((c.b - b) * alpha) + (b << 16)) >> 16);
-//				p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
-				p[Order::R] = (int8u)((((color.red - r) * alpha) + (r << 16)) >> 16);
-				p[Order::G] = (int8u)((((color.green - g) * alpha) + (g << 16)) >> 16);
-				p[Order::B] = (int8u)((((color.blue - b) * alpha) + (b << 16)) >> 16);
-				p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
+			if (cover == 255) {
+				assign_copy(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+							color.red, color.green, color.blue);
+			} else {
+				blend_copy(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+						   color.red, color.green, color.blue, cover);
 			}
 		}
 
-		//--------------------------------------------------------------------
+		// blend_hline
 		virtual	void blend_hline(int x, int y, unsigned len, 
 								 const color_type& c, int8u cover)
 		{
-//printf("DrawingModeCopy::blend_hline()\n");
-			int alpha = int(cover) * int(c.a);
-			int8u* p = m_rbuf->row(y) + (x << 2);
-			if(alpha == 255*255)
-			{
-				do
-				{
-					rgb_color color = fPatternHandler->R5ColorAt(x, y);
-					p[Order::R] = color.red;
-					p[Order::G] = color.green;
-					p[Order::B] = color.blue;
-					p[Order::A] = color.alpha;
-					p += 4;
+			if(cover == 255) {
+				// cache the low and high color as 32bit values
+				// high color
+				rgb_color color = fPatternHandler->HighColor().GetColor32();
+				int32u vh;
+				int8u* p8 = (int8u*)&vh;
+				p8[Order::R] = (int8u)color.red;
+				p8[Order::G] = (int8u)color.green;
+				p8[Order::B] = (int8u)color.blue;
+				p8[Order::A] = 255;
+				// low color
+				color = fPatternHandler->LowColor().GetColor32();
+				int32u vl;
+				p8 = (int8u*)&vl;
+				p8[Order::R] = (int8u)color.red;
+				p8[Order::G] = (int8u)color.green;
+				p8[Order::B] = (int8u)color.blue;
+				p8[Order::A] = 255;
+				// row offset as 32bit pointer
+				int32u* p32 = (int32u*)(m_rbuf->row(y)) + x;
+				do {
+					if (fPatternHandler->IsHighColor(x, y))
+						*p32 = vh;
+					else
+						*p32 = vl;
+					p32++;
 					x++;
-				}
-				while(--len);
-			}
-			else
-			{
-				do
-				{
+				} while(--len);
+			} else {
+				int8u* p = m_rbuf->row(y) + (x << 2);
+				do {
 					rgb_color color = fPatternHandler->R5ColorAt(x, y);
-					int r = p[Order::R];
-					int g = p[Order::G];
-					int b = p[Order::B];
-					int a = p[Order::A];
-//					p[Order::R] = (int8u)((((c.r - r) * alpha) + (r << 16)) >> 16);
-//					p[Order::G] = (int8u)((((c.g - g) * alpha) + (g << 16)) >> 16);
-//					p[Order::B] = (int8u)((((c.b - b) * alpha) + (b << 16)) >> 16);
-//					p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
-					p[Order::R] = (int8u)((((color.red - r) * alpha) + (r << 16)) >> 16);
-					p[Order::G] = (int8u)((((color.green - g) * alpha) + (g << 16)) >> 16);
-					p[Order::B] = (int8u)((((color.blue - b) * alpha) + (b << 16)) >> 16);
-					p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
-					p += 4;
+					blend_copy(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+							   color.red, color.green, color.blue, cover);
 					x++;
-				}
-				while(--len);
+					p += 4;
+				} while(--len);
 			}
 		}
 
-		//--------------------------------------------------------------------
+		// blend_vline
 		virtual	void blend_vline(int x, int y, unsigned len, 
 								 const color_type& c, int8u cover)
 		{
 printf("DrawingModeCopy::blend_vline()\n");
 		}
 
-		//--------------------------------------------------------------------
+		// blend_solid_hspan
 		virtual	void blend_solid_hspan(int x, int y, unsigned len, 
 									   const color_type& c, const int8u* covers)
 		{
-//printf("DrawingModeCopy::blend_solid_hspan()\n");
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
+			do {
 				rgb_color color = fPatternHandler->R5ColorAt(x, y);
-//				int alpha = int(*covers++) * c.a;
-				int alpha = int(*covers++) * color.alpha;
-//int alpha = int(*covers++);
-				if(alpha)
-				{
-					if(alpha == 255*255)
-					{
-//						p[Order::R] = (int8u)c.r;
-//						p[Order::G] = (int8u)c.g;
-//						p[Order::B] = (int8u)c.b;
-//						p[Order::A] = (int8u)c.a;
-						p[Order::R] = color.red;
-						p[Order::G] = color.green;
-						p[Order::B] = color.blue;
-						p[Order::A] = color.alpha;
+				if (*covers) {
+					if(*covers == 255) {
+						assign_copy(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+									color.red, color.green, color.blue);
+					} else {
+						blend_copy(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+								   color.red, color.green, color.blue, *covers);
 					}
-					else
-					{
-						int r = p[Order::R];
-						int g = p[Order::G];
-						int b = p[Order::B];
-						int a = p[Order::A];
-//						p[Order::R] = (int8u)((((c.r - r) * alpha) + (r << 16)) >> 16);
-//						p[Order::G] = (int8u)((((c.g - g) * alpha) + (g << 16)) >> 16);
-//						p[Order::B] = (int8u)((((c.b - b) * alpha) + (b << 16)) >> 16);
-//						p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
-						p[Order::R] = (int8u)((((color.red - r) * alpha) + (r << 16)) >> 16);
-						p[Order::G] = (int8u)((((color.green - g) * alpha) + (g << 16)) >> 16);
-						p[Order::B] = (int8u)((((color.blue - b) * alpha) + (b << 16)) >> 16);
-						p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
-					}
-/*if(alpha > 127)
-{
-	p[Order::R] = (int8u)c.r;
-	p[Order::G] = (int8u)c.g;
-	p[Order::B] = (int8u)c.b;
-	p[Order::A] = (int8u)c.a;
-}*/
 				}
+				covers++;
 				p += 4;
 				x++;
-			}
-			while(--len);
+			} while(--len);
 		}
 
 
 
-		//--------------------------------------------------------------------
+		// blend_solid_vspan
 		virtual	void blend_solid_vspan(int x, int y, unsigned len, 
 									   const color_type& c, const int8u* covers)
 		{
-//printf("DrawingModeCopy::blend_solid_vspan()\n");
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
+			do {
 				rgb_color color = fPatternHandler->R5ColorAt(x, y);
-//				int alpha = int(*covers++) * c.a;
-				int alpha = int(*covers++) * color.alpha;
-//int alpha = int(*covers++);
-
-				if(alpha)
-				{
-					if(alpha == 255*255)
-					{
-//						p[Order::R] = (int8u)c.r;
-//						p[Order::G] = (int8u)c.g;
-//						p[Order::B] = (int8u)c.b;
-//						p[Order::A] = (int8u)c.a;
-						p[Order::R] = color.red;
-						p[Order::G] = color.green;
-						p[Order::B] = color.blue;
-						p[Order::A] = color.alpha;
+				if (*covers) {
+					if (*covers == 255) {
+						assign_copy(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+									color.red, color.green, color.blue);
+					} else {
+						blend_copy(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+								   color.red, color.green, color.blue, *covers);
 					}
-					else
-					{
-						int r = p[Order::R];
-						int g = p[Order::G];
-						int b = p[Order::B];
-						int a = p[Order::A];
-//						p[Order::R] = (int8u)((((c.r - r) * alpha) + (r << 16)) >> 16);
-//						p[Order::G] = (int8u)((((c.g - g) * alpha) + (g << 16)) >> 16);
-//						p[Order::B] = (int8u)((((c.b - b) * alpha) + (b << 16)) >> 16);
-//						p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
-						p[Order::R] = (int8u)((((color.red - r) * alpha) + (r << 16)) >> 16);
-						p[Order::G] = (int8u)((((color.green - g) * alpha) + (g << 16)) >> 16);
-						p[Order::B] = (int8u)((((color.blue - b) * alpha) + (b << 16)) >> 16);
-						p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
-					}
-/*if(alpha > 127)
-{
-	p[Order::R] = (int8u)c.r;
-	p[Order::G] = (int8u)c.g;
-	p[Order::B] = (int8u)c.b;
-	p[Order::A] = (int8u)c.a;
-}*/
 				}
+				covers++;
 				p += m_rbuf->stride();
 				y++;
-			}
-			while(--len);
+			} while(--len);
 		}
 
 
-		//--------------------------------------------------------------------
+		// blend_color_hspan
 		virtual	void blend_color_hspan(int x, int y, unsigned len, 
 									   const color_type* colors, 
 									   const int8u* covers,
 									   int8u cover)
 		{
-printf("DrawingModeCopy::blend_color_hspan()\n");
+			int8u* p = m_rbuf->row(y) + (x << 2);
+			if (covers) {
+				// non-solid opacity
+				do {
+					if(*covers) {
+						if(*covers == 255) {
+							assign_copy(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+										colors->r, colors->g, colors->b);
+						} else {
+							blend_copy(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+									   colors->r, colors->g, colors->b, *covers);
+						}
+					}
+					covers++;
+					p += 4;
+					++colors;
+				} while(--len);
+			} else {
+				// solid full opcacity
+				if (cover == 255) {
+					do {
+						assign_copy(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+									colors->r, colors->g, colors->b);
+						p += 4;
+						++colors;
+					} while(--len);
+				// solid partial opacity
+				} else if (cover) {
+					do {
+						blend_copy(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+								   colors->r, colors->g, colors->b, cover);
+						p += 4;
+						++colors;
+					} while(--len);
+				}
+			}
 		}
 
 
-		//--------------------------------------------------------------------
+		// blend_color_vspan
 		virtual	void blend_color_vspan(int x, int y, unsigned len, 
 									   const color_type* colors, 
 									   const int8u* covers,
diff --git a/src/servers/app/server/Painter/drawing_modes/DrawingModeInvert.h b/src/servers/app/server/Painter/drawing_modes/DrawingModeInvert.h
index 0a17485bd1..1322177bfb 100644
--- a/src/servers/app/server/Painter/drawing_modes/DrawingModeInvert.h
+++ b/src/servers/app/server/Painter/drawing_modes/DrawingModeInvert.h
@@ -5,284 +5,171 @@
 
 #include "DrawingMode.h"
 
-#define BINARY 0
+// blend_invert
+inline void
+blend_invert(uint8* d1, uint8* d2, uint8* d3, uint8* da, uint8 a)
+{
+	blend(d1, d2, d3, da, 255 - *d1, 255 - *d2, 255 - *d3, a);
+}
+
+// assign_invert
+inline void
+assign_invert(uint8* d1, uint8* d2, uint8* d3, uint8* da)
+{
+	*d1 = 255 - *d1;
+	*d2 = 255 - *d2;
+	*d3 = 255 - *d3;
+	*da = 255;
+}
+
 
 namespace agg
 {
-	//====================================================DrawingModeInvert
 	template<class Order>
 	class DrawingModeInvert : public DrawingMode
 	{
 	public:
 		typedef Order order_type;
 
-		//--------------------------------------------------------------------
+		// constructor
 		DrawingModeInvert()
 			: DrawingMode()
 		{
 		}
 
-		//--------------------------------------------------------------------
+		// blend_pixel
 		virtual	void blend_pixel(int x, int y, const color_type& c, int8u cover)
 		{
-//printf("DrawingModeInvert::blend_pixel()\n");
 			if (fPatternHandler->IsHighColor(x, y)) {
 				int8u* p = m_rbuf->row(y) + (x << 2);
-#if BINARY
-				int alpha = int(cover);
-				if(alpha > 127)
-				{
-					p[Order::R] = 255 - p[Order::R];
-					p[Order::G] = 255 - p[Order::G];
-					p[Order::B] = 255 - p[Order::B];
-				//	p[Order::A] = 255 - p[Order::A];
+				if (cover == 255) {
+					assign_invert(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A]);
+				} else {
+					blend_invert(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A], cover);
 				}
-#else
-				int alpha = int(cover) * int(c.a);
-				if(alpha == 255*255)
-				{
-					p[Order::R] = 255 - p[Order::R];
-					p[Order::G] = 255 - p[Order::G];
-					p[Order::B] = 255 - p[Order::B];
-//					p[Order::A] = 255 - p[Order::A];
-				}
-				else
-				{
-					int r = p[Order::R];
-					int g = p[Order::G];
-					int b = p[Order::B];
-					int a = p[Order::A];
-					p[Order::R] = (int8u)(((((255 - r) - r) * alpha) + (r << 16)) >> 16);
-					p[Order::G] = (int8u)(((((255 - g) - g) * alpha) + (g << 16)) >> 16);
-					p[Order::B] = (int8u)(((((255 - b) - b) * alpha) + (b << 16)) >> 16);
-					p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
-				}
-#endif
 			}
 		}
 
-		//--------------------------------------------------------------------
+		// blend_hline
 		virtual	void blend_hline(int x, int y, unsigned len, 
 								 const color_type& c, int8u cover)
 		{
-//printf("DrawingModeInvert::blend_hline()\n");
-#if BINARY
-			if (cover > 127) {
-				int8u* p = m_rbuf->row(y) + (x << 2);
-				do
-				{
+			int8u* p = m_rbuf->row(y) + (x << 2);
+			if(cover == 255) {
+				do {
 					if (fPatternHandler->IsHighColor(x, y)) {
-						p[Order::R] = 255 - p[Order::R];
-						p[Order::G] = 255 - p[Order::G];
-						p[Order::B] = 255 - p[Order::B];
-//						p[Order::A] = 255 - p[Order::A];
-					}
-					p += 4;
-					x++;
-				}
-				while(--len);
-			}
-#else
-			int alpha = int(cover) * int(c.a);
-			if(alpha == 255*255)
-			{
-				int8u* p = m_rbuf->row(y) + (x << 2);
-				do
-				{
-					if (fPatternHandler->IsHighColor(x, y)) {
-						p[Order::R] = 255 - p[Order::R];
-						p[Order::G] = 255 - p[Order::G];
-						p[Order::B] = 255 - p[Order::B];
-//						p[Order::A] = 255 - p[Order::A];
-					}
-					p += 4;
-					x++;
-				}
-				while(--len);
-			}
-			else
-			{
-				int8u* p = m_rbuf->row(y) + (x << 2);
-				do
-				{
-					if (fPatternHandler->IsHighColor(x, y)) {
-						int r = p[Order::R];
-						int g = p[Order::G];
-						int b = p[Order::B];
-						int a = p[Order::A];
-						p[Order::R] = (int8u)(((((255 - r) - r) * alpha) + (r << 16)) >> 16);
-						p[Order::G] = (int8u)(((((255 - g) - g) * alpha) + (g << 16)) >> 16);
-						p[Order::B] = (int8u)(((((255 - b) - b) * alpha) + (b << 16)) >> 16);
-						p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
+						assign_invert(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A]);
 					}
 					x++;
 					p += 4;
-				}
-				while(--len);
+				} while(--len);
+			} else {
+				do {
+					if (fPatternHandler->IsHighColor(x, y)) {
+						blend_invert(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A], cover);
+					}
+					x++;
+					p += 4;
+				} while(--len);
 			}
-#endif
 		}
 
-		//--------------------------------------------------------------------
+		// blend_vline
 		virtual	void blend_vline(int x, int y, unsigned len, 
 								 const color_type& c, int8u cover)
 		{
 printf("DrawingModeInvert::blend_vline()\n");
 		}
 
-		//--------------------------------------------------------------------
+		// blend_solid_hspan
 		virtual	void blend_solid_hspan(int x, int y, unsigned len, 
 									   const color_type& c, const int8u* covers)
 		{
-//printf("DrawingModeInvert::blend_solid_hspan()\n");
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
+			do {
 				if (fPatternHandler->IsHighColor(x, y)) {
-#if BINARY
-					int alpha = int(*covers);
-					if(alpha > 127)
-					{
-						p[Order::R] = 255 - p[Order::R];
-						p[Order::G] = 255 - p[Order::G];
-						p[Order::B] = 255 - p[Order::B];
-					//	p[Order::A] = 255 - p[Order::A];
-					}
-#else
-					int alpha = int(*covers) * c.a;
-					if(alpha)
-					{
-						if(alpha == 255*255)
-						{
-							p[Order::R] = 255 - p[Order::R];
-							p[Order::G] = 255 - p[Order::G];
-							p[Order::B] = 255 - p[Order::B];
-//							p[Order::A] = 255 - p[Order::A];
-						}
-						else
-						{
-							int r = p[Order::R];
-							int g = p[Order::G];
-							int b = p[Order::B];
-							int a = p[Order::A];
-							p[Order::R] = (int8u)(((((255 - r) - r) * alpha) + (r << 16)) >> 16);
-							p[Order::G] = (int8u)(((((255 - g) - g) * alpha) + (g << 16)) >> 16);
-							p[Order::B] = (int8u)(((((255 - b) - b) * alpha) + (b << 16)) >> 16);
-							p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
+					if (*covers) {
+						if(*covers == 255) {
+							assign_invert(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A]);
+						} else {
+							blend_invert(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A], *covers);
 						}
 					}
-#endif
 				}
 				covers++;
 				p += 4;
 				x++;
-			}
-			while(--len);
+			} while(--len);
 		}
 
 
 
-		//--------------------------------------------------------------------
+		// blend_solid_vspan
 		virtual	void blend_solid_vspan(int x, int y, unsigned len, 
 									   const color_type& c, const int8u* covers)
 		{
-//printf("DrawingModeInvert::blend_solid_vspan()\n");
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
+			do {
 				if (fPatternHandler->IsHighColor(x, y)) {
-#if BINARY
-					int alpha = int(*covers);
-					if(alpha > 127)
-					{
-						p[Order::R] = 255 - p[Order::R];
-						p[Order::G] = 255 - p[Order::G];
-						p[Order::B] = 255 - p[Order::B];
-					//	p[Order::A] = 255 - p[Order::A];
-					}
-#else
-					int alpha = int(*covers) * c.a;
-					if(alpha)
-					{
-						if(alpha == 255*255)
-						{
-							p[Order::R] = 255 - p[Order::R];
-							p[Order::G] = 255 - p[Order::G];
-							p[Order::B] = 255 - p[Order::B];
-//							p[Order::A] = 255 - p[Order::A];
-						}
-						else
-						{
-							int r = p[Order::R];
-							int g = p[Order::G];
-							int b = p[Order::B];
-							int a = p[Order::A];
-							p[Order::R] = (int8u)(((((255 - r) - r) * alpha) + (r << 16)) >> 16);
-							p[Order::G] = (int8u)(((((255 - g) - g) * alpha) + (g << 16)) >> 16);
-							p[Order::B] = (int8u)(((((255 - b) - b) * alpha) + (b << 16)) >> 16);
-							p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
+					if (*covers) {
+						if (*covers == 255) {
+							assign_invert(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A]);
+						} else {
+							blend_invert(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A], *covers);
 						}
 					}
-#endif
 				}
 				covers++;
 				p += m_rbuf->stride();
 				y++;
-			}
-			while(--len);
+			} while(--len);
 		}
 
 
-		//--------------------------------------------------------------------
+		// blend_color_hspan
 		virtual	void blend_color_hspan(int x, int y, unsigned len, 
 									   const color_type* colors, 
 									   const int8u* covers,
 									   int8u cover)
 		{
-//printf("DrawingModeInvert::blend_color_hspan()\n");
+			// TODO: does the R5 app_server check for the
+			// appearance of the high color in the source bitmap?
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			rgb_color lowColor = fPatternHandler->LowColor().GetColor32();
-			do 
-			{
-				int alpha = colors->a * (covers ? int(*covers++) : int(cover));
-
-				if(alpha)
-				{
-//					if (colors->r != lowColor.red ||
-//						colors->g != lowColor.green ||
-//						colors->b != lowColor.blue) {
-	
-						p[Order::R] = 255 - p[Order::R];
-						p[Order::G] = 255 - p[Order::G];
-						p[Order::B] = 255 - p[Order::B];
-//					}
-/*					if(alpha == 255*255)
-					{
-						p[Order::R] = 255 - p[Order::R];
-						p[Order::G] = 255 - p[Order::G];
-						p[Order::B] = 255 - p[Order::B];
-//						p[Order::A] = 255 - p[Order::A];
+			if (covers) {
+				// non-solid opacity
+				do {
+					if(*covers) {
+						if(*covers == 255) {
+							assign_invert(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A]);
+						} else {
+							blend_invert(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A], *covers);
+						}
 					}
-					else
-					{
-						int r = p[Order::R];
-						int g = p[Order::G];
-						int b = p[Order::B];
-//						int a = p[Order::A];
-						p[Order::R] = (int8u)(((((255 - r) - r) * alpha) + (r << 16)) >> 16);
-						p[Order::G] = (int8u)(((((255 - g) - g) * alpha) + (g << 16)) >> 16);
-						p[Order::B] = (int8u)(((((255 - b) - b) * alpha) + (b << 16)) >> 16);
-//						p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
-					}*/
+					covers++;
+					p += 4;
+//					++colors;
+				} while(--len);
+			} else {
+				// solid full opcacity
+				if (cover == 255) {
+					do {
+						assign_invert(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A]);
+						p += 4;
+//						++colors;
+					} while(--len);
+				// solid partial opacity
+				} else if (cover) {
+					do {
+						blend_invert(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A], cover);
+						p += 4;
+//						++colors;
+					} while(--len);
 				}
-				p += 4;
-				++colors;
 			}
-			while(--len);
 		}
 
 
-		//--------------------------------------------------------------------
+		// blend_color_vspan
 		virtual	void blend_color_vspan(int x, int y, unsigned len, 
 									   const color_type* colors, 
 									   const int8u* covers,
diff --git a/src/servers/app/server/Painter/drawing_modes/DrawingModeMax.h b/src/servers/app/server/Painter/drawing_modes/DrawingModeMax.h
index 34d6982226..1b5731803f 100644
--- a/src/servers/app/server/Painter/drawing_modes/DrawingModeMax.h
+++ b/src/servers/app/server/Painter/drawing_modes/DrawingModeMax.h
@@ -27,50 +27,45 @@ assign_max(uint8* d1, uint8* d2, uint8* d3, uint8* da,
 	*d1 = max_c(*d1, s1);
 	*d2 = max_c(*d2, s2);
 	*d3 = max_c(*d3, s3);
+	*da = 255;
 }
 
 
 namespace agg
 {
-	//====================================================DrawingModeMax
 	template<class Order>
 	class DrawingModeMax : public DrawingMode
 	{
 	public:
 		typedef Order order_type;
 
-		//--------------------------------------------------------------------
+		// constructor
 		DrawingModeMax()
 			: DrawingMode()
 		{
 		}
 
-		//--------------------------------------------------------------------
+		// blend_pixel
 		virtual	void blend_pixel(int x, int y, const color_type& c, int8u cover)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
 			rgb_color color = fPatternHandler->R5ColorAt(x, y);
-			if(cover)
-			{
+			if (cover == 255) {
 				assign_max(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 						   color.red, color.green, color.blue);
-			}
-			else
-			{
+			} else {
 				blend_max(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 						  color.red, color.green, color.blue, cover);
 			}
 		}
 
-		//--------------------------------------------------------------------
+		// blend_hline
 		virtual	void blend_hline(int x, int y, unsigned len, 
 								 const color_type& c, int8u cover)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			if(cover == 255)
-			{
-				do
-				{
+			if (cover == 255) {
+				do {
 					rgb_color color = fPatternHandler->R5ColorAt(x, y);
 
 					assign_max(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
@@ -78,13 +73,9 @@ namespace agg
 
 					p += 4;
 					x++;
-				}
-				while(--len);
-			}
-			else
-			{
-				do
-				{
+				} while(--len);
+			} else {
+				do {
 					rgb_color color = fPatternHandler->R5ColorAt(x, y);
 
 					blend_max(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
@@ -92,12 +83,11 @@ namespace agg
 
 					x++;
 					p += 4;
-				}
-				while(--len);
+				} while(--len);
 			}
 		}
 
-		//--------------------------------------------------------------------
+		// blend_vline
 		virtual	void blend_vline(int x, int y, unsigned len, 
 								 const color_type& c, int8u cover)
 		{
@@ -109,18 +99,13 @@ printf("DrawingModeMax::blend_vline()\n");
 									   const color_type& c, const int8u* covers)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
+			do {
 				rgb_color color = fPatternHandler->R5ColorAt(x, y);
-				if(*covers)
-				{
-					if(*covers == 255)
-					{
+				if (*covers) {
+					if (*covers == 255) {
 						assign_max(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 								   color.red, color.green, color.blue);
-					}
-					else
-					{
+					} else {
 						blend_max(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 								  color.red, color.green, color.blue, *covers);
 					}
@@ -128,29 +113,23 @@ printf("DrawingModeMax::blend_vline()\n");
 				covers++;
 				p += 4;
 				x++;
-			}
-			while(--len);
+			} while(--len);
 		}
 
 
 
-		//--------------------------------------------------------------------
+		// blend_solid_vspan
 		virtual	void blend_solid_vspan(int x, int y, unsigned len, 
 									   const color_type& c, const int8u* covers)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
+			do {
 				rgb_color color = fPatternHandler->R5ColorAt(x, y);
-				if(*covers)
-				{
-					if(*covers == 255)
-					{
+				if (*covers) {
+					if (*covers == 255) {
 						assign_max(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 								   color.red, color.green, color.blue);
-					}
-					else
-					{
+					} else {
 						blend_max(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 								  color.red, color.green, color.blue, *covers);
 					}
@@ -158,39 +137,52 @@ printf("DrawingModeMax::blend_vline()\n");
 				covers++;
 				p += m_rbuf->stride();
 				y++;
-			}
-			while(--len);
+			} while(--len);
 		}
 
 
-		//--------------------------------------------------------------------
+		// blend_color_hspan
 		virtual	void blend_color_hspan(int x, int y, unsigned len, 
 									   const color_type* colors, 
 									   const int8u* covers,
 									   int8u cover)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
-				uint8 alpha = covers ? *covers++ : cover;
-
-				if(alpha)
-				{
-					if(alpha == 255)
-					{
+			if (covers) {
+				// non-solid opacity
+				do {
+					if (*covers) {
+						if (*covers == 255) {
+							assign_max(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+									   colors->r, colors->g, colors->b);
+						} else {
+							blend_max(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+									  colors->r, colors->g, colors->b, *covers);
+						}
+					}
+					covers++;
+					p += 4;
+					++colors;
+				} while(--len);
+			} else {
+				// solid full opcacity
+				if (cover == 255) {
+					do {
 						assign_max(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 								   colors->r, colors->g, colors->b);
-					}
-					else
-					{
+						p += 4;
+						++colors;
+					} while(--len);
+				// solid partial opacity
+				} else if (cover) {
+					do {
 						blend_max(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
-								  colors->r, colors->g, colors->b, alpha);
-					}
+								  colors->r, colors->g, colors->b, cover);
+						p += 4;
+						++colors;
+					} while(--len);
 				}
-				p += 4;
-				++colors;
 			}
-			while(--len);
 		}
 
 
diff --git a/src/servers/app/server/Painter/drawing_modes/DrawingModeMin.h b/src/servers/app/server/Painter/drawing_modes/DrawingModeMin.h
index 6606044c3d..7f8f700ee3 100644
--- a/src/servers/app/server/Painter/drawing_modes/DrawingModeMin.h
+++ b/src/servers/app/server/Painter/drawing_modes/DrawingModeMin.h
@@ -27,50 +27,45 @@ assign_min(uint8* d1, uint8* d2, uint8* d3, uint8* da,
 	*d1 = min_c(*d1, s1);
 	*d2 = min_c(*d2, s2);
 	*d3 = min_c(*d3, s3);
+	*da = 255;
 }
 
 
 namespace agg
 {
-	//====================================================DrawingModeMin
 	template<class Order>
 	class DrawingModeMin : public DrawingMode
 	{
 	public:
 		typedef Order order_type;
 
-		//--------------------------------------------------------------------
+		// constructor
 		DrawingModeMin()
 			: DrawingMode()
 		{
 		}
 
-		//--------------------------------------------------------------------
+		// blend_pixel
 		virtual	void blend_pixel(int x, int y, const color_type& c, int8u cover)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
 			rgb_color color = fPatternHandler->R5ColorAt(x, y);
-			if(cover)
-			{
+			if (cover == 255) {
 				assign_min(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 						   color.red, color.green, color.blue);
-			}
-			else
-			{
+			} else {
 				blend_min(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 						  color.red, color.green, color.blue, cover);
 			}
 		}
 
-		//--------------------------------------------------------------------
+		// blend_hline
 		virtual	void blend_hline(int x, int y, unsigned len, 
 								 const color_type& c, int8u cover)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			if(cover == 255)
-			{
-				do
-				{
+			if (cover == 255) {
+				do {
 					rgb_color color = fPatternHandler->R5ColorAt(x, y);
 
 					assign_min(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
@@ -78,13 +73,9 @@ namespace agg
 
 					p += 4;
 					x++;
-				}
-				while(--len);
-			}
-			else
-			{
-				do
-				{
+				} while(--len);
+			} else {
+				do {
 					rgb_color color = fPatternHandler->R5ColorAt(x, y);
 
 					blend_min(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
@@ -92,35 +83,29 @@ namespace agg
 
 					x++;
 					p += 4;
-				}
-				while(--len);
+				} while(--len);
 			}
 		}
 
-		//--------------------------------------------------------------------
+		// blend_vline
 		virtual	void blend_vline(int x, int y, unsigned len, 
 								 const color_type& c, int8u cover)
 		{
 printf("DrawingModeMin::blend_vline()\n");
 		}
 
-		//--------------------------------------------------------------------
+		// blend_solid_hspan
 		virtual	void blend_solid_hspan(int x, int y, unsigned len, 
 									   const color_type& c, const int8u* covers)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
+			do {
 				rgb_color color = fPatternHandler->R5ColorAt(x, y);
-				if(*covers)
-				{
-					if(*covers == 255)
-					{
+				if (*covers) {
+					if (*covers == 255) {
 						assign_min(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 								   color.red, color.green, color.blue);
-					}
-					else
-					{
+					} else {
 						blend_min(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 								  color.red, color.green, color.blue, *covers);
 					}
@@ -128,29 +113,23 @@ printf("DrawingModeMin::blend_vline()\n");
 				covers++;
 				p += 4;
 				x++;
-			}
-			while(--len);
+			} while(--len);
 		}
 
 
 
-		//--------------------------------------------------------------------
+		// blend_solid_vspan
 		virtual	void blend_solid_vspan(int x, int y, unsigned len, 
 									   const color_type& c, const int8u* covers)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
+			do {
 				rgb_color color = fPatternHandler->R5ColorAt(x, y);
-				if(*covers)
-				{
-					if(*covers == 255)
-					{
+				if (*covers) {
+					if (*covers == 255) {
 						assign_min(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 								   color.red, color.green, color.blue);
-					}
-					else
-					{
+					} else {
 						blend_min(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 								  color.red, color.green, color.blue, *covers);
 					}
@@ -158,39 +137,52 @@ printf("DrawingModeMin::blend_vline()\n");
 				covers++;
 				p += m_rbuf->stride();
 				y++;
-			}
-			while(--len);
+			} while(--len);
 		}
 
 
-		//--------------------------------------------------------------------
+		// blend_color_hspan
 		virtual	void blend_color_hspan(int x, int y, unsigned len, 
 									   const color_type* colors, 
 									   const int8u* covers,
 									   int8u cover)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
-				uint8 alpha = covers ? *covers++ : cover;
-
-				if(alpha)
-				{
-					if(alpha == 255)
-					{
+			if (covers) {
+				// non-solid opacity
+				do {
+					if (*covers) {
+						if (*covers == 255) {
+							assign_min(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+									   colors->r, colors->g, colors->b);
+						} else {
+							blend_min(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+									  colors->r, colors->g, colors->b, *covers);
+						}
+					}
+					covers++;
+					p += 4;
+					++colors;
+				} while(--len);
+			} else {
+				// solid full opcacity
+				if (cover == 255) {
+					do {
 						assign_min(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 								   colors->r, colors->g, colors->b);
-					}
-					else
-					{
+						p += 4;
+						++colors;
+					} while(--len);
+				// solid partial opacity
+				} else if (cover) {
+					do {
 						blend_min(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
-								  colors->r, colors->g, colors->b, alpha);
-					}
+								  colors->r, colors->g, colors->b, cover);
+						p += 4;
+						++colors;
+					} while(--len);
 				}
-				p += 4;
-				++colors;
 			}
-			while(--len);
 		}
 
 
diff --git a/src/servers/app/server/Painter/drawing_modes/DrawingModeOver.h b/src/servers/app/server/Painter/drawing_modes/DrawingModeOver.h
index 748772c50b..a6d851cd61 100644
--- a/src/servers/app/server/Painter/drawing_modes/DrawingModeOver.h
+++ b/src/servers/app/server/Painter/drawing_modes/DrawingModeOver.h
@@ -5,258 +5,193 @@
 
 #include "DrawingMode.h"
 
+// blend_over
+inline void
+blend_over(uint8* d1, uint8* d2, uint8* d3, uint8* da,
+		   uint8 s1, uint8 s2, uint8 s3, uint8 a)
+{
+	blend(d1, d2, d3, da, s1, s2, s3, a);
+}
+
+// assign_over
+inline void
+assign_over(uint8* d1, uint8* d2, uint8* d3, uint8* da,
+			uint8 s1, uint8 s2, uint8 s3)
+{
+	*d1 = s1;
+	*d2 = s2;
+	*d3 = s3;
+	*da = 255;
+}
+
+
 namespace agg
 {
-	//====================================================DrawingModeOver
 	template<class Order>
 	class DrawingModeOver : public DrawingMode
 	{
 	public:
 		typedef Order order_type;
 
-		//--------------------------------------------------------------------
+		// constructor
 		DrawingModeOver()
 			: DrawingMode()
 		{
 		}
 
-		//--------------------------------------------------------------------
+		// blend_pixel
 		virtual	void blend_pixel(int x, int y, const color_type& c, int8u cover)
 		{
-//printf("DrawingModeOver::blend_pixel()\n");
 			if (fPatternHandler->IsHighColor(x, y)) {
 				int8u* p = m_rbuf->row(y) + (x << 2);
-				rgb_color color = fPatternHandler->R5ColorAt(x, y);
-	//			int alpha = int(cover) * int(c.a);
-				int alpha = int(cover) * int(color.alpha);
-				if(alpha == 255*255)
-				{
-	//				p[Order::R] = (int8u)c.r;
-	//				p[Order::G] = (int8u)c.g;
-	//				p[Order::B] = (int8u)c.b;
-	//				p[Order::A] = (int8u)c.a;
-	
-					p[Order::R] = color.red;
-					p[Order::G] = color.green;
-					p[Order::B] = color.blue;
-					p[Order::A] = color.alpha;
-				}
-				else
-				{
-					int r = p[Order::R];
-					int g = p[Order::G];
-					int b = p[Order::B];
-					int a = p[Order::A];
-	//				p[Order::R] = (int8u)((((c.r - r) * alpha) + (r << 16)) >> 16);
-	//				p[Order::G] = (int8u)((((c.g - g) * alpha) + (g << 16)) >> 16);
-	//				p[Order::B] = (int8u)((((c.b - b) * alpha) + (b << 16)) >> 16);
-	//				p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
-					p[Order::R] = (int8u)((((color.red - r) * alpha) + (r << 16)) >> 16);
-					p[Order::G] = (int8u)((((color.green - g) * alpha) + (g << 16)) >> 16);
-					p[Order::B] = (int8u)((((color.blue - b) * alpha) + (b << 16)) >> 16);
-					p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
+				rgb_color color = fPatternHandler->HighColor().GetColor32();
+				if (cover == 255) {
+					assign_over(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+								color.red, color.green, color.blue);
+				} else {
+					blend_over(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+							   color.red, color.green, color.blue, cover);
 				}
 			}
 		}
 
-		//--------------------------------------------------------------------
+		// blend_hline
 		virtual	void blend_hline(int x, int y, unsigned len, 
 								 const color_type& c, int8u cover)
 		{
-//printf("DrawingModeOver::blend_hline()\n");
-			int alpha = int(cover) * int(c.a);
-			if(alpha == 255*255)
-			{
+			if(cover == 255) {
+				rgb_color color = fPatternHandler->HighColor().GetColor32();
 				int32u v;
 				int8u* p8 = (int8u*)&v;
-				p8[Order::R] = (int8u)c.r;
-				p8[Order::G] = (int8u)c.g;
-				p8[Order::B] = (int8u)c.b;
-				p8[Order::A] = (int8u)c.a;
+				p8[Order::R] = (int8u)color.red;
+				p8[Order::G] = (int8u)color.green;
+				p8[Order::B] = (int8u)color.blue;
+				p8[Order::A] = 255;
 				int32u* p32 = (int32u*)(m_rbuf->row(y)) + x;
-				do
-				{
+				do {
 					if (fPatternHandler->IsHighColor(x, y))
 						*p32 = v;
 					p32++;
 					x++;
-				}
-				while(--len);
-			}
-			else
-			{
+				} while(--len);
+			} else {
 				int8u* p = m_rbuf->row(y) + (x << 2);
-				do
-				{
+				rgb_color color = fPatternHandler->HighColor().GetColor32();
+				do {
 					if (fPatternHandler->IsHighColor(x, y)) {
-						int r = p[Order::R];
-						int g = p[Order::G];
-						int b = p[Order::B];
-						int a = p[Order::A];
-						p[Order::R] = (int8u)((((c.r - r) * alpha) + (r << 16)) >> 16);
-						p[Order::G] = (int8u)((((c.g - g) * alpha) + (g << 16)) >> 16);
-						p[Order::B] = (int8u)((((c.b - b) * alpha) + (b << 16)) >> 16);
-						p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
+						blend_over(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+								   color.red, color.green, color.blue, cover);
 					}
 					x++;
 					p += 4;
-				}
-				while(--len);
+				} while(--len);
 			}
 		}
 
-		//--------------------------------------------------------------------
+		// blend_vline
 		virtual	void blend_vline(int x, int y, unsigned len, 
 								 const color_type& c, int8u cover)
 		{
 printf("DrawingModeOver::blend_vline()\n");
 		}
 
-		//--------------------------------------------------------------------
+		// blend_solid_hspan
 		virtual	void blend_solid_hspan(int x, int y, unsigned len, 
 									   const color_type& c, const int8u* covers)
 		{
-//printf("DrawingModeOver::blend_solid_hspan()\n");
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
+			rgb_color color = fPatternHandler->HighColor().GetColor32();
+			do {
 				if (fPatternHandler->IsHighColor(x, y)) {
-					rgb_color color = fPatternHandler->R5ColorAt(x, y);
-	//				int alpha = int(*covers++) * c.a;
-					int alpha = int(*covers) * color.alpha;
-	//int alpha = int(*covers++);
-					if(alpha)
-					{
-						if(alpha == 255*255)
-						{
-	//						p[Order::R] = (int8u)c.r;
-	//						p[Order::G] = (int8u)c.g;
-	//						p[Order::B] = (int8u)c.b;
-	//						p[Order::A] = (int8u)c.a;
-							p[Order::R] = color.red;
-							p[Order::G] = color.green;
-							p[Order::B] = color.blue;
-							p[Order::A] = color.alpha;
-						}
-						else
-						{
-							int r = p[Order::R];
-							int g = p[Order::G];
-							int b = p[Order::B];
-							int a = p[Order::A];
-	//						p[Order::R] = (int8u)((((c.r - r) * alpha) + (r << 16)) >> 16);
-	//						p[Order::G] = (int8u)((((c.g - g) * alpha) + (g << 16)) >> 16);
-	//						p[Order::B] = (int8u)((((c.b - b) * alpha) + (b << 16)) >> 16);
-	//						p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
-							p[Order::R] = (int8u)((((color.red - r) * alpha) + (r << 16)) >> 16);
-							p[Order::G] = (int8u)((((color.green - g) * alpha) + (g << 16)) >> 16);
-							p[Order::B] = (int8u)((((color.blue - b) * alpha) + (b << 16)) >> 16);
-							p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
+					if (*covers) {
+						if(*covers == 255) {
+							assign_over(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+										color.red, color.green, color.blue);
+						} else {
+							blend_over(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+									   color.red, color.green, color.blue, *covers);
 						}
 					}
 				}
 				covers++;
 				p += 4;
 				x++;
-			}
-			while(--len);
+			} while(--len);
 		}
 
 
 
-		//--------------------------------------------------------------------
+		// blend_solid_vspan
 		virtual	void blend_solid_vspan(int x, int y, unsigned len, 
 									   const color_type& c, const int8u* covers)
 		{
-//printf("DrawingModeOver::blend_solid_vspan()\n");
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
+			rgb_color color = fPatternHandler->HighColor().GetColor32();
+			do {
 				if (fPatternHandler->IsHighColor(x, y)) {
-					rgb_color color = fPatternHandler->R5ColorAt(x, y);
-	//				int alpha = int(*covers++) * c.a;
-					int alpha = int(*covers) * color.alpha;
-	//int alpha = int(*covers++);
-	
-					if(alpha)
-					{
-						if(alpha == 255*255)
-						{
-	//						p[Order::R] = (int8u)c.r;
-	//						p[Order::G] = (int8u)c.g;
-	//						p[Order::B] = (int8u)c.b;
-	//						p[Order::A] = (int8u)c.a;
-							p[Order::R] = color.red;
-							p[Order::G] = color.green;
-							p[Order::B] = color.blue;
-							p[Order::A] = color.alpha;
-						}
-						else
-						{
-							int r = p[Order::R];
-							int g = p[Order::G];
-							int b = p[Order::B];
-							int a = p[Order::A];
-	//						p[Order::R] = (int8u)((((c.r - r) * alpha) + (r << 16)) >> 16);
-	//						p[Order::G] = (int8u)((((c.g - g) * alpha) + (g << 16)) >> 16);
-	//						p[Order::B] = (int8u)((((c.b - b) * alpha) + (b << 16)) >> 16);
-	//						p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
-							p[Order::R] = (int8u)((((color.red - r) * alpha) + (r << 16)) >> 16);
-							p[Order::G] = (int8u)((((color.green - g) * alpha) + (g << 16)) >> 16);
-							p[Order::B] = (int8u)((((color.blue - b) * alpha) + (b << 16)) >> 16);
-							p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
+					if (*covers) {
+						if (*covers == 255) {
+							assign_over(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+										color.red, color.green, color.blue);
+						} else {
+							blend_over(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+									   color.red, color.green, color.blue, *covers);
 						}
 					}
-				};
+				}
 				covers++;
 				p += m_rbuf->stride();
 				y++;
-			}
-			while(--len);
+			} while(--len);
 		}
 
 
-		//--------------------------------------------------------------------
+		// blend_color_hspan
 		virtual	void blend_color_hspan(int x, int y, unsigned len, 
 									   const color_type* colors, 
 									   const int8u* covers,
 									   int8u cover)
 		{
-//printf("DrawingModeOver::blend_color_hspan()\n");
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
-				int alpha = colors->a * (covers ? int(*covers++) : int(cover));
-
-				if(alpha)
-				{
-					if(alpha == 255*255)
-					{
-						p[Order::R] = (int8u)colors->r;
-						p[Order::G] = (int8u)colors->g;
-						p[Order::B] = (int8u)colors->b;
-						p[Order::A] = (int8u)colors->a;
-					}
-					else
-					{
-						int r = p[Order::R];
-						int g = p[Order::G];
-						int b = p[Order::B];
-						int a = p[Order::A];
-						p[Order::R] = (int8u)((((colors->r - r) * alpha) + (r << 16)) >> 16);
-						p[Order::G] = (int8u)((((colors->g - g) * alpha) + (g << 16)) >> 16);
-						p[Order::B] = (int8u)((((colors->b - b) * alpha) + (b << 16)) >> 16);
-						p[Order::A] = (int8u)(((alpha + (a << 8)) - ((alpha * a) >> 8)) >> 8);
+			if (covers) {
+				// non-solid opacity
+				do {
+					if (*covers) {
+						if (*covers == 255) {
+							assign_over(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+										colors->r, colors->g, colors->b);
+						} else {
+							blend_over(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+									   colors->r, colors->g, colors->b, *covers);
+						}
 					}
+					covers++;
+					p += 4;
+					++colors;
+				} while(--len);
+			} else {
+				// solid full opcacity
+				if (cover == 255) {
+					do {
+						assign_over(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+									colors->r, colors->g, colors->b);
+						p += 4;
+						++colors;
+					} while(--len);
+				// solid partial opacity
+				} else if (cover) {
+					do {
+						blend_over(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+								   colors->r, colors->g, colors->b, cover);
+						p += 4;
+						++colors;
+					} while(--len);
 				}
-				p += 4;
-				++colors;
 			}
-			while(--len);
 		}
 
 
-		//--------------------------------------------------------------------
+		// blend_color_vspan
 		virtual	void blend_color_vspan(int x, int y, unsigned len, 
 									   const color_type* colors, 
 									   const int8u* covers,
diff --git a/src/servers/app/server/Painter/drawing_modes/DrawingModeSubtract.h b/src/servers/app/server/Painter/drawing_modes/DrawingModeSubtract.h
index b71e121dd6..f7bda07856 100644
--- a/src/servers/app/server/Painter/drawing_modes/DrawingModeSubtract.h
+++ b/src/servers/app/server/Painter/drawing_modes/DrawingModeSubtract.h
@@ -8,7 +8,7 @@
 #include "DrawingMode.h"
 #include "PatternHandler.h"
 
-
+// blend_subtract
 inline void
 blend_subtract(uint8* d1, uint8* d2, uint8* d3, uint8* da,
 			   uint8 s1, uint8 s2, uint8 s3, uint8 a)
@@ -20,6 +20,7 @@ blend_subtract(uint8* d1, uint8* d2, uint8* d3, uint8* da,
 	blend(d1, d2, d3, da, s1, s2, s3, a);
 }
 
+// assign_subtract
 inline void
 assign_subtract(uint8* d1, uint8* d2, uint8* d3, uint8* da,
 				uint8 s1, uint8 s2, uint8 s3)
@@ -27,50 +28,45 @@ assign_subtract(uint8* d1, uint8* d2, uint8* d3, uint8* da,
 	*d1 = max_c(0, *d1 - s1);
 	*d2 = max_c(0, *d2 - s2);
 	*d3 = max_c(0, *d3 - s3);
+	*da = 255;
 }
 
 
 namespace agg
 {
-	//====================================================DrawingModeSubtract
 	template<class Order>
 	class DrawingModeSubtract : public DrawingMode
 	{
 	public:
 		typedef Order order_type;
 
-		//--------------------------------------------------------------------
+		// constructor
 		DrawingModeSubtract()
 			: DrawingMode()
 		{
 		}
 
-		//--------------------------------------------------------------------
+		// blend_pixel
 		virtual	void blend_pixel(int x, int y, const color_type& c, int8u cover)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
 			rgb_color color = fPatternHandler->R5ColorAt(x, y);
-			if(cover)
-			{
+			if (cover == 255) {
 				assign_subtract(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 								color.red, color.green, color.blue);
-			}
-			else
-			{
+			} else {
 				blend_subtract(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 							   color.red, color.green, color.blue, cover);
 			}
 		}
 
-		//--------------------------------------------------------------------
+		// blend_hline
 		virtual	void blend_hline(int x, int y, unsigned len, 
 								 const color_type& c, int8u cover)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			if(cover == 255)
-			{
-				do
-				{
+			if (cover == 255) {
+				do {
 					rgb_color color = fPatternHandler->R5ColorAt(x, y);
 
 					assign_subtract(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
@@ -78,13 +74,9 @@ namespace agg
 
 					p += 4;
 					x++;
-				}
-				while(--len);
-			}
-			else
-			{
-				do
-				{
+				} while(--len);
+			} else {
+				do {
 					rgb_color color = fPatternHandler->R5ColorAt(x, y);
 
 					blend_subtract(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
@@ -97,30 +89,25 @@ namespace agg
 			}
 		}
 
-		//--------------------------------------------------------------------
+		// blend_vline
 		virtual	void blend_vline(int x, int y, unsigned len, 
 								 const color_type& c, int8u cover)
 		{
 printf("DrawingModeSubtract::blend_vline()\n");
 		}
 
-		//--------------------------------------------------------------------
+		// blend_solid_hspan
 		virtual	void blend_solid_hspan(int x, int y, unsigned len, 
 									   const color_type& c, const int8u* covers)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
+			do {
 				rgb_color color = fPatternHandler->R5ColorAt(x, y);
-				if(*covers)
-				{
-					if(*covers == 255)
-					{
+				if (*covers) {
+					if (*covers == 255) {
 						assign_subtract(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 										color.red, color.green, color.blue);
-					}
-					else
-					{
+					} else {
 						blend_subtract(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 									   color.red, color.green, color.blue, *covers);
 					}
@@ -128,29 +115,23 @@ printf("DrawingModeSubtract::blend_vline()\n");
 				covers++;
 				p += 4;
 				x++;
-			}
-			while(--len);
+			} while(--len);
 		}
 
 
 
-		//--------------------------------------------------------------------
+		// blend_solid_vspan
 		virtual	void blend_solid_vspan(int x, int y, unsigned len, 
 									   const color_type& c, const int8u* covers)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
+			do {
 				rgb_color color = fPatternHandler->R5ColorAt(x, y);
-				if(*covers)
-				{
-					if(*covers == 255)
-					{
+				if (*covers) {
+					if (*covers == 255) {
 						assign_subtract(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 										color.red, color.green, color.blue);
-					}
-					else
-					{
+					} else {
 						blend_subtract(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 									   color.red, color.green, color.blue, *covers);
 					}
@@ -158,43 +139,56 @@ printf("DrawingModeSubtract::blend_vline()\n");
 				covers++;
 				p += m_rbuf->stride();
 				y++;
-			}
-			while(--len);
+			} while(--len);
 		}
 
 
-		//--------------------------------------------------------------------
+		// blend_color_hspan
 		virtual	void blend_color_hspan(int x, int y, unsigned len, 
 									   const color_type* colors, 
 									   const int8u* covers,
 									   int8u cover)
 		{
 			int8u* p = m_rbuf->row(y) + (x << 2);
-			do 
-			{
-				uint8 alpha = covers ? *covers++ : cover;
-
-				if(alpha)
-				{
-					if(alpha == 255)
-					{
+			if (covers) {
+				// non-solid opacity
+				do {
+					if (*covers) {
+						if (*covers == 255) {
+							assign_subtract(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+											colors->r, colors->g, colors->b);
+						} else {
+							blend_subtract(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
+										   colors->r, colors->g, colors->b, *covers);
+						}
+					}
+					covers++;
+					p += 4;
+					++colors;
+				} while(--len);
+			} else {
+				// solid full opcacity
+				if (cover == 255) {
+					do {
 						assign_subtract(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
 										colors->r, colors->g, colors->b);
-					}
-					else
-					{
+						p += 4;
+						++colors;
+					} while(--len);
+				// solid partial opacity
+				} else if (cover) {
+					do {
 						blend_subtract(&p[Order::R], &p[Order::G], &p[Order::B], &p[Order::A],
-									   colors->r, colors->g, colors->b, alpha);
-					}
+									   colors->r, colors->g, colors->b, cover);
+						p += 4;
+						++colors;
+					} while(--len);
 				}
-				p += 4;
-				++colors;
 			}
-			while(--len);
 		}
 
 
-		//--------------------------------------------------------------------
+		// blend_color_vspan
 		virtual	void blend_color_vspan(int x, int y, unsigned len, 
 									   const color_type* colors, 
 									   const int8u* covers,