David Smart / RA8875 Featured

Library to control a Graphics TFT connected to 4-wire SPI - revised for the Raio RA8875 Display Controller.

Dependents:   FRDM_RA8875_mPaint RA8875_Demo RA8875_KeyPadDemo SignalGenerator ... more

Fork of SPI_TFT by Peter Drescher

See Components - RA8875 Based Display

Enhanced touch-screen support - where it previous supported both the Resistive Touch and Capacitive Touch based on the FT5206 Touch Controller, now it also has support for the GSL1680 Touch Controller.

Offline Help Manual (Windows chm)

/media/uploads/WiredHome/ra8875.zip.bin (download, rename to .zip and unzip)

Diff: GraphicsDisplay.h

Revision:
122:79e431f98fa9
Parent:
115:c9862fd0c689
Child:
125:7a0b70f56550
--- a/GraphicsDisplay.h	Tue May 17 22:05:43 2016 +0000
+++ b/GraphicsDisplay.h	Tue May 17 22:33:06 2016 +0000
@@ -13,7 +13,6 @@
 
 #ifndef MBED_GRAPHICSDISPLAY_H
 #define MBED_GRAPHICSDISPLAY_H
-
 #include "Bitmap.h"
 #include "TextDisplay.h"
 #include "GraphicsDisplayJPEG.h"
@@ -433,14 +432,25 @@
     RetCode_t _RenderBitmap(loc_t x, loc_t y, uint32_t fileOffset, FILE * Image);
 
 private:
+
+    /// Analyze the jpeg data in preparation for decompression.
+    ///
     JRESULT jd_prepare(JDEC * jd, uint16_t(* infunc)(JDEC * jd, uint8_t * buffer, uint16_t bufsize), void * pool, uint16_t poolsize, void * filehandle);
     
+    /// Decompress the jpeg and render it.
+    ///
     JRESULT jd_decomp(JDEC * jd, uint16_t(* outfunct)(JDEC * jd, void * stream, JRECT * rect), uint8_t scale);
 
+    /// helper function to read data from the file system
+    ///
     uint16_t privInFunc(JDEC * jd, uint8_t * buff, uint16_t ndata);
 
+    /// helper function to read data from the file system
+    ///
     uint16_t getJpegData(JDEC * jd, uint8_t *buff, uint16_t ndata);
 
+    /// helper function to write data to the display
+    ///
     uint16_t privOutFunc(JDEC * jd, void * bitmap, JRECT * rect);
     
     JRESULT mcu_output (
@@ -471,6 +481,7 @@
         JDEC * jd        /* Pointer to the decompressor object */
     );
 
+
 protected:
     /// Pure virtual method to write a boolean stream to the display.
     ///