Diff: screen/BufferedDisplay.h

Revision:

0:0d4feb02e324

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/screen/BufferedDisplay.h	Mon Dec 24 13:26:28 2018 +0000
@@ -0,0 +1,81 @@
+/***************************************************************************//**
+ * @file BufferedDisplay.h
+ * @brief Framebuffered version of GraphicsDisplay
+ *******************************************************************************
+ * @section License
+ * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
+ *******************************************************************************
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ *
+ * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
+ * obligation to support this Software. Silicon Labs is providing the
+ * Software "AS IS", with no express or implied warranties of any kind,
+ * including, but not limited to, any implied warranties of merchantability
+ * or fitness for any particular purpose or warranties against infringement
+ * of any proprietary rights of a third party.
+ *
+ * Silicon Labs will not be liable for any consequential, incidental, or
+ * special damages, or any other relief, or for any claim by any third party,
+ * arising from your use of this Software.
+ *
+ ******************************************************************************/
+
+#ifndef SILABS_BUFFEREDDISPLAY_H
+#define SILABS_BUFFEREDDISPLAY_H
+
+#include "../screen/GraphicsDisplay.h"
+#include "../screen/LCDSettings.h"
+
+namespace silabs {
+/** Framebuffered version of GraphicsDisplay
+ * 
+ * This has been implemented as part of the MemoryLCD library.
+ */
+class BufferedDisplay : public GraphicsDisplay {
+
+public:
+
+	BufferedDisplay(const char *name=NULL);
+
+	/**
+	 * Override of GraphicsDisplay pixel() function to set a pixel in the buffer
+     *
+     * @param x      Zero-based x-axis index of pixel to set. 0 = leftmost.
+     * @param y      Zero-based y-axis index of pixel to set. 0 = topmost.
+     * @param colour Colour value to set pixel to. In this implementation, only LSB is taken into account.
+	 */
+	virtual void pixel(int x, int y, int colour);
+	virtual int width();
+	virtual int height();
+
+	/**
+	 * Function to move bitmap into frame buffer
+	 * 
+	 * @param bitmap      pointer to uint8 array containing horizontal pixel data
+	 * @param bmpWidth    width of the bitmap in pixels (must be multiple of 8)
+	 * @param bmpHeight   height of the bitmap in pixels
+	 * @param startX      starting position to apply bitmap in horizontal direction (0 = leftmost) (must be multiple of 8)
+	 * @param startY      starting position to apply bitmap in vertical direction (0 = topmost)
+	 */
+	void showBMP(const uint8_t* bitmap, const uint32_t bmpWidth, const uint32_t bmpHeight, const uint32_t startX, const uint32_t startY);
+
+protected:
+	volatile DISPLAY_BUFFER_TYPE _pixelBuffer[DISPLAY_BUFFER_ELEMENTS]; // one full frame buffer
+	volatile DISPLAY_BUFFER_TYPE _dirtyRows[DISPLAY_HEIGHT/DISPLAY_BUFFER_TYPE_SIZE]; // 1 bit per row to indicate dirty status
+};
+
+} // namespace silabs
+
+
+
+
+#endif //SILABS_BUFFEREDDISPLAY_H