fixes and optimizations to mouse drawing

kernel/src/BasicRenderer.cpp

@@ -51,13 +51,13 @@ void BasicRenderer::Print(const char* str) {
 	}
 }
 
-void BasicRenderer::PutPixel(uint32_t x, uint32_t y, uint32_t colour) {
+inline void BasicRenderer::PutPixel(uint32_t x, uint32_t y, uint32_t colour) {
 
 	*(uint32_t*)((uint64_t)targetFramebuffer->BaseAddress + (x*4) + (y * targetFramebuffer->PixelsPerScanline * 4)) = colour;
 
 }
 
-uint32_t BasicRenderer::GetPixel(uint32_t x, uint32_t y){
+inline uint32_t BasicRenderer::GetPixel(uint32_t x, uint32_t y){
     return *(uint32_t*)((uint64_t)targetFramebuffer->BaseAddress + (x*4) + (y * targetFramebuffer->PixelsPerScanline * 4));
 }
 
@@ -78,7 +78,9 @@ void BasicRenderer::ClearMouseCursor(uint8_t* mouseCursor, Point position) {
 			int byte = bit / 8;
 
 			if (mouseCursor[byte] & (0b10000000 >> (x % 8))) {
-				PutPixel(position.x + x, position.y + y, mouseCursorBuffer[x + y*16]);
+				if (GetPixel(position.x + x, position.y + y) == mouseCursorBufferAfter[x + y * 16]) {
+					PutPixel(position.x + x, position.y + y, mouseCursorBuffer[x + y*16]);
+				}
 			}
 		}
 	}
@@ -101,6 +103,8 @@ void BasicRenderer::DrawOverlayMouseCursor(uint8_t* mouseCursor, Point position,
 			if (mouseCursor[byte] & (0b10000000 >> (x % 8))) {
 				mouseCursorBuffer[x + y*16] = GetPixel(position.x + x, position.y + y);
 				PutPixel(position.x + x, position.y + y, colour);
+				mouseCursorBufferAfter[x + y*16] = GetPixel(position.x + x, position.y + y);
+
 			}
 		}
 	}

kernel/src/BasicRenderer.h

@@ -11,13 +11,14 @@ class BasicRenderer {
 		Framebuffer* targetFramebuffer;
 		PSF1_FONT* PSF1_Font;
 		uint32_t mouseCursorBuffer[16*19];
+		uint32_t mouseCursorBufferAfter[16*19];
 		unsigned int Colour;
 		unsigned int ClearColour;
 		void Print(const char* str);
 		void PutChar(char chr, unsigned int xOff, unsigned int yOff);
 		void PutChar(char chr);
-		void PutPixel(uint32_t x, uint32_t y, uint32_t colour);
-		uint32_t GetPixel(uint32_t x, uint32_t y);
+		inline void PutPixel(uint32_t x, uint32_t y, uint32_t colour);
+		inline uint32_t GetPixel(uint32_t x, uint32_t y);
 		void ClearMouseCursor(uint8_t* mouseCursor, Point position);
 		void ClearChar();
 		void Clear();

kernel/src/userinput/mouse.cpp

@@ -58,6 +58,12 @@ uint8_t mouseCycle = 0;
 uint8_t mousePacket[4];
 bool mousePacketReady = false;
 
+bool mouseButtons[] = {
+	false, // left
+	false, // right
+	false  // middle
+};
+
 Point mousePosition;
 Point mousePositionOld;
 
@@ -138,6 +144,10 @@ void ProcessMousePacket() {
 	if (mousePosition.y < 0) mousePosition.y = 0;
 	if (mousePosition.y > GlobalRenderer->targetFramebuffer->Height-1) mousePosition.y = GlobalRenderer->targetFramebuffer->Height;
 
+	mouseButtons[0] = mousePacket[0] & PS2LeftButton;
+	mouseButtons[1] = mousePacket[1] & PS2RightButton;
+	mouseButtons[2] = mousePacket[2] & PS2MiddleButton;
+
 	GlobalRenderer->ClearMouseCursor(MousePointer, mousePositionOld);
 	GlobalRenderer->DrawOverlayMouseCursor(MousePointer, mousePosition, 0xFFFFFFFF);
 

kernel/src/userinput/mouse.h

@@ -5,8 +5,8 @@
 
 extern uint8_t MousePointer[];
 #define PS2LeftButton 0b00000001
-#define PS2MiddleButton 0b00000010
-#define PS2RightButton 0b00000100
+#define PS2MiddleButton 0b00000100
+#define PS2RightButton 0b00000010
 
 #define PS2XSign 0b00010000
 #define PS2YSign 0b00100000
@@ -14,6 +14,7 @@ extern uint8_t MousePointer[];
 #define PS2YOverflow 0b10000000
 
 extern Point mousePosition;
+extern bool mouseButtons[];
 
 void InitPS2Mouse();
 void HandlePS2Mouse(uint8_t data);