TFT library: warning messages in PImage class and strings inside examples now stored in flash to save RAM

Author: Fede85

build/shared/revisions.txt

@@ -4,6 +4,9 @@ ARDUINO 1.5.6 BETA
 [ide]
 * Improved command-line parsing (Matthijs Kooijman)
 
+[libraries]
+* TFT: warning messages in PImage class and strings inside examples now stored in flash to save RAM. 
+
 ARDUINO 1.5.5 BETA 2013.11.28
 
 NOTICE:

libraries/TFT/examples/Arduino/TFTBitmapLogo/TFTBitmapLogo.ino

@@ -50,10 +50,10 @@ void setup() {
 
   TFTscreen.stroke(0, 0, 255);
   TFTscreen.println();
-  TFTscreen.println("Arduino TFT Bitmap Example");
+  TFTscreen.println(F("Arduino TFT Bitmap Example"));
   TFTscreen.stroke(0, 0, 0);
-  TFTscreen.println("Open serial monitor");
-  TFTscreen.println("to run the sketch");
+  TFTscreen.println(F("Open serial monitor"));
+  TFTscreen.println(F("to run the sketch"));
 
   // initialize the serial port: it will be used to
   // print some diagnostic info
@@ -67,12 +67,12 @@ void setup() {
 
   // try to access the SD card. If that fails (e.g.
   // no card present), the setup process will stop.
-  Serial.print("Initializing SD card...");
+  Serial.print(F("Initializing SD card..."));
   if (!SD.begin(sd_cs)) {
-    Serial.println("failed!");
+    Serial.println(F("failed!"));
     return;
   }
-  Serial.println("OK!");
+  Serial.println(F("OK!"));
 
   // initialize and clear the GLCD screen
   TFTscreen.begin();
@@ -82,7 +82,7 @@ void setup() {
   // image file.
   logo = TFTscreen.loadImage("arduino.bmp");
   if (!logo.isValid()) {
-    Serial.println("error while loading arduino.bmp");
+    Serial.println(F("error while loading arduino.bmp"));
   }
 }
 
@@ -92,7 +92,7 @@ void loop() {
     return;
   }
 
-  Serial.println("drawing image");
+  Serial.println(F("drawing image"));
 
   // get a random location where to draw the image.
   // To avoid the image to be draw outside the screen,

libraries/TFT/examples/Esplora/EsploraTFTBitmapLogo/EsploraTFTBitmapLogo.ino

@@ -41,10 +41,10 @@ void setup() {
 
   EsploraTFT.stroke(0, 0, 255);
   EsploraTFT.println();
-  EsploraTFT.println("Arduino LCD Bitmap Example");
+  EsploraTFT.println(F("Arduino LCD Bitmap Example"));
   EsploraTFT.stroke(0, 0, 0);
-  EsploraTFT.println("Open serial monitor");
-  EsploraTFT.println("to run the sketch");
+  EsploraTFT.println(F("Open serial monitor"));
+  EsploraTFT.println(F("to run the sketch"));
 
   // initialize the serial port: it will be used to
   // print some diagnostic info
@@ -55,9 +55,9 @@ void setup() {
 
   // try to access the SD card. If that fails (e.g.
   // no card present), the Esplora's LED will turn red.
-  Serial.print("Initializing SD card...");
+  Serial.print(F("Initializing SD card..."));
   if (!SD.begin(SD_CS)) {
-    Serial.println("failed!");
+    Serial.println(F("failed!"));
     Esplora.writeRed(255);
     return;
   }
@@ -85,7 +85,7 @@ void loop() {
     return;
   }
 
-  Serial.println("drawing image");
+  Serial.println(F("drawing image"));
 
   // get a random location where to draw the image.
   // To avoid the image to be draw outside the screen,

libraries/TFT/src/utility/Adafruit_GFX.h

@@ -316,7 +316,7 @@ PImage PImage::loadImage(const char * fileName) {
 
   // Open requested file on SD card
   if ((bmpFile = SD.open(fileName)) == NULL) {
-    Serial.print("loadImage: file not found: ");
+    Serial.print(F("loadImage: file not found: "));
     Serial.println(fileName);
     return PImage(); // load error
   }
@@ -325,31 +325,31 @@ PImage PImage::loadImage(const char * fileName) {
 
   // Parse BMP header
   if(read16(bmpFile) != 0x4D42) { // BMP signature
-    Serial.println("loadImage: file doesn't look like a BMP");
+    Serial.println(F("loadImage: file doesn't look like a BMP"));
     return PImage();
   }
 
-  Serial.print("File size: "); Serial.println(read32(bmpFile));
+  Serial.print(F("File size: ")); Serial.println(read32(bmpFile));
   (void)read32(bmpFile); // Read & ignore creator bytes
   bmpImageoffset = read32(bmpFile); // Start of image data
-  Serial.print("Image Offset: "); Serial.println(bmpImageoffset, DEC);
+  Serial.print(F("Image Offset: ")); Serial.println(bmpImageoffset, DEC);
   // Read DIB header
-  Serial.print("Header size: "); Serial.println(read32(bmpFile));
+  Serial.print(F("Header size: ")); Serial.println(read32(bmpFile));
   bmpWidth  = read32(bmpFile);
   bmpHeight = read32(bmpFile);
   if(read16(bmpFile) != 1) { // # planes -- must be '1'
-    Serial.println("loadImage: invalid n. of planes");
+    Serial.println(F("loadImage: invalid n. of planes"));
     return PImage();
   }
 
   bmpDepth = read16(bmpFile); // bits per pixel
-  Serial.print("Bit Depth: "); Serial.println(bmpDepth);
+  Serial.print(F("Bit Depth: ")); Serial.println(bmpDepth);
   if((bmpDepth != 24) || (read32(bmpFile) != 0)) { // 0 = uncompressed {
-    Serial.println("loadImage: invalid pixel format");
+    Serial.println(F("loadImage: invalid pixel format"));
     return PImage();
   }
 
-  Serial.print("Image size: ");
+  Serial.print(F("Image size: "));
   Serial.print(bmpWidth);
   Serial.print('x');
   Serial.println(bmpHeight);