Added an GEOMETRY_RAWMODE for other low level displays like the flip dots.

Added setGeometry high/width optional parameters to allow custom bitmaps.

Author: helmut64

src/OLEDDisplay.cpp

@@ -42,7 +42,7 @@ OLEDDisplay::OLEDDisplay() {
 
 	displayWidth = 128;
 	displayHeight = 64;
-	displayBufferSize = 1024;
+	displayBufferSize = displayWidth * displayHeight / 8;
 	color = WHITE;
 	geometry = GEOMETRY_128_64;
 	textAlignment = TEXT_ALIGN_LEFT;
@@ -800,19 +800,28 @@ int OLEDDisplay::_putc(int c) {
 #endif
 
 // Private functions
-void OLEDDisplay::setGeometry(OLEDDISPLAY_GEOMETRY g) {
+void OLEDDisplay::setGeometry(OLEDDISPLAY_GEOMETRY g, uint16_t width, uint16_t height) {
   this->geometry = g;
-  if (g == GEOMETRY_128_64) {
-    this->displayWidth                     = 128;
-    this->displayHeight                    = 64;
-  } else if (g == GEOMETRY_128_32) {
-    this->displayWidth                     = 128;
-    this->displayHeight                    = 32;
-  }
-  this->displayBufferSize                = displayWidth*displayHeight/8;
+  switch (g) {
+  	case GEOMETRY_128_64:
+    	this->displayWidth = 128;
+    	this->displayHeight = 64;
+		break;
+	case GEOMETRY_128_32:
+    	this->displayWidth = 128;
+    	this->displayHeight = 32;
+		break;
+	case GEOMETRY_RAWMODE:
+		this->displayWidth = width > 0 ? width : 128;
+		this->displayHeight = height > 0 ? height : 64;
+		break;
+  }
+  this->displayBufferSize = displayWidth * displayHeight /8;
 }
 
 void OLEDDisplay::sendInitCommands(void) {
+  if (geometry == GEOMETRY_RAWMODE)
+  	return;
   sendCommand(DISPLAYOFF);
   sendCommand(SETDISPLAYCLOCKDIV);
   sendCommand(0xF0); // Increase speed of the display max ~96Hz

src/OLEDDisplay.h

@@ -137,7 +137,8 @@ enum OLEDDISPLAY_TEXT_ALIGNMENT {
 
 enum OLEDDISPLAY_GEOMETRY {
   GEOMETRY_128_64   = 0,
-  GEOMETRY_128_32   = 1
+  GEOMETRY_128_32,
+  GEOMETRY_RAWMODE,
 };
 
 typedef char (*FontTableLookupFunction)(const char ch);
@@ -321,7 +322,7 @@ class OLEDDisplay : public Stream {
     uint16_t  displayBufferSize;
 
     // Set the correct height, width and buffer for the geometry
-    void setGeometry(OLEDDISPLAY_GEOMETRY g);
+    void setGeometry(OLEDDISPLAY_GEOMETRY g, uint16_t width = 0, uint16_t height = 0);
 
     OLEDDISPLAY_TEXT_ALIGNMENT   textAlignment;
     OLEDDISPLAY_COLOR            color;