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.cpp

Revision:
136:224e03d5c31f
Parent:
122:79e431f98fa9
Child:
142:6e9bff59878a
Child:
145:5eb2492acdda
--- a/GraphicsDisplay.cpp	Sun Nov 13 02:06:30 2016 +0000
+++ b/GraphicsDisplay.cpp	Wed Nov 16 02:48:45 2016 +0000
@@ -336,8 +336,8 @@
     // Define window for top to bottom and left to right so writing auto-wraps
     rect_t restore = windowrect;
     window(x,y, PixelWidth,PixelHeight);
-    SetGraphicsCursor(x, y);
-    _StartGraphicsStream();
+//    SetGraphicsCursor(x, y);
+//    _StartGraphicsStream();
 
     //start_data = BMP_Info.bfOffBits;
     //HexDump("Raw Data", (uint8_t *)&start_data, 32);
@@ -353,8 +353,7 @@
                 uint8_t dPix = lineBuffer[i/8];
                 uint8_t bMask = 0x80 >> (i % 8);
                 uint8_t bit = (bMask & dPix) ? 0 : 1;
-                //INFO("%02X & %02X ? => %02X", dPix, bMask, bit);
-                pixelBuffer[i] = RGBQuadToRGB16(colorPalette, bit);                
+                pixelBuffer[i] = RGBQuadToRGB16(colorPalette, bit);
             } else if (BPP_t == 4) {
                 uint8_t dPix = lineBuffer[i/2];
                 if ((i & 1) == 0)
@@ -373,7 +372,7 @@
         }
         pixelStream(pixelBuffer, PixelWidth, x, y++);
     }
-    _EndGraphicsStream();
+//    _EndGraphicsStream();
     window(restore);
     free(pixelBuffer);      // don't leak memory
     free(lineBuffer);
@@ -419,7 +418,8 @@
             INFO("jd_prepare returned %d", r);
             
             if (r == noerror) {
-                SetGraphicsCursor(x,y);
+                img_x = x;  // save the origin for the privOutput function
+                img_y = y;
                 r = (RetCode_t)jd_decomp(jdec, NULL, 0);
             } else {
                 r = not_supported_format;   // error("jd_prepare error:%d", r);