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Diffstat (limited to 'libraries/TFT/utility/Adafruit_GFX.h')
| -rw-r--r-- | libraries/TFT/utility/Adafruit_GFX.h | 367 |
1 files changed, 0 insertions, 367 deletions
diff --git a/libraries/TFT/utility/Adafruit_GFX.h b/libraries/TFT/utility/Adafruit_GFX.h deleted file mode 100644 index b49aa0f..0000000 --- a/libraries/TFT/utility/Adafruit_GFX.h +++ /dev/null @@ -1,367 +0,0 @@ -/****************************************************************** - This is the core graphics library for all our displays, providing - basic graphics primitives (points, lines, circles, etc.). It needs - to be paired with a hardware-specific library for each display - device we carry (handling the lower-level functions). - - Adafruit invests time and resources providing this open - source code, please support Adafruit and open-source hardware - by purchasing products from Adafruit! - - Written by Limor Fried/Ladyada for Adafruit Industries. - Processing-like API written by Enrico Gueli for Officine Arduino. - BSD license, check license.txt for more information. - All text above must be included in any redistribution. - ******************************************************************/ - -#ifndef _ADAFRUIT_GFX_H -#define _ADAFRUIT_GFX_H - -#if ARDUINO >= 100 - #include "Arduino.h" - #include "Print.h" -#else - #include "WProgram.h" -#endif - -/* - * This library can work with or without the presence of an SD - * reading library (to load images). At the moment, only the - * Arduino SD library is supported; it is included in - * standard Arduino libraries. - * - * The presence of the SD library is detected by looking at the - * __SD_H__ preprocessor variable, defined into - * Arduino SD library to avoid double inclusion. This means - * that in order to use the image-related API of Adafruit_GFX, - * SD.h *must* be included before Adafruit_GFX. - * - * The bottom part of this include file contains the actual image - * loading code; if it was in a separate .cpp file, there were no - * way to check if the SD library was present or not. - * - * A partial solution was to include SD.h anyway, see if that works - * (i.e. it is found in the include search path) and act accordingly. - * But this solution relied on the preprocessor to issue only a - * warning when an include file is not found. Avr-gcc, used for - * Arduino 8-bit MCUs, does that, but the standard gcc-4.4, used for - * Arduino Due, issues a fatal error and stops compilation. - * - * The best solution so far is to put the code here. It works if this - * include is used only in one .cpp file in the build (this is the - * case of most Arduino sketches); if used in multiple .cpp files, - * the linker may complain about duplicate definitions. - * - */ - -#if defined(__SD_H__) // Arduino SD library -# include "PImage.h" -#else -# warning "The SD library was not found. loadImage() and image() won't be supported." -#endif - -#define swap(a, b) { int16_t t = a; a = b; b = t; } - -/* TODO -enum RectMode { - CORNER, - CORNERS, - RADIUS, - CENTER -}; -*/ - -typedef uint16_t color; - -class Adafruit_GFX : public Print { - public: - - //Adafruit_GFX(); - // i have no idea why we have to formally call the constructor. kinda sux - void constructor(int16_t w, int16_t h); - - // this must be defined by the subclass - virtual void drawPixel(int16_t x, int16_t y, uint16_t color); - virtual void invertDisplay(boolean i); - - // these are 'generic' drawing functions, so we can share them! - virtual void drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, - uint16_t color); - virtual void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color); - virtual void drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color); - virtual void drawRect(int16_t x, int16_t y, int16_t w, int16_t h, - uint16_t color); - virtual void fillRect(int16_t x, int16_t y, int16_t w, int16_t h, - uint16_t color); - virtual void fillScreen(uint16_t color); - - void drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color); - void drawCircleHelper(int16_t x0, int16_t y0, - int16_t r, uint8_t cornername, uint16_t color); - void fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color); - void fillCircleHelper(int16_t x0, int16_t y0, int16_t r, - uint8_t cornername, int16_t delta, uint16_t color); - - void drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, - int16_t x2, int16_t y2, uint16_t color); - void fillTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, - int16_t x2, int16_t y2, uint16_t color); - void drawRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, - int16_t radius, uint16_t color); - void fillRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, - int16_t radius, uint16_t color); - - void drawBitmap(int16_t x, int16_t y, - const uint8_t *bitmap, int16_t w, int16_t h, - uint16_t color); - void drawChar(int16_t x, int16_t y, unsigned char c, - uint16_t color, uint16_t bg, uint8_t size); -#if ARDUINO >= 100 - virtual size_t write(uint8_t); -#else - virtual void write(uint8_t); -#endif - void setCursor(int16_t x, int16_t y); - void setTextColor(uint16_t c); - void setTextColor(uint16_t c, uint16_t bg); - void setTextSize(uint8_t s); - void setTextWrap(boolean w); - - int16_t height(void); - int16_t width(void); - - void setRotation(uint8_t r); - uint8_t getRotation(void); - - - /* - * Processing-like graphics primitives - */ - - /// transforms a color in 16-bit form given the RGB components. - /// The default implementation makes a 5-bit red, a 6-bit - /// green and a 5-bit blue (MSB to LSB). Devices that use - /// different scheme should override this. - virtual uint16_t newColor(uint8_t red, uint8_t green, uint8_t blue); - - - // http://processing.org/reference/background_.html - void background(uint8_t red, uint8_t green, uint8_t blue); - void background(color c); - - // http://processing.org/reference/fill_.html - void fill(uint8_t red, uint8_t green, uint8_t blue); - void fill(color c); - - // http://processing.org/reference/noFill_.html - void noFill(); - - // http://processing.org/reference/stroke_.html - void stroke(uint8_t red, uint8_t green, uint8_t blue); - void stroke(color c); - - // http://processing.org/reference/noStroke_.html - void noStroke(); - - void text (const char * text, int16_t x, int16_t y); - void textWrap(const char * text, int16_t x, int16_t y); - - void textSize(uint8_t size); - - // similar to ellipse() in Processing, but with - // a single radius. - // http://processing.org/reference/ellipse_.html - void circle(int16_t x, int16_t y, int16_t r); - - void point(int16_t x, int16_t y); - - void line(int16_t x1, int16_t y1, int16_t x2, int16_t y2); - - void quad(int16_t x1, int16_t y1, int16_t x2, int16_t y2, int16_t x3, int16_t y3, int16_t x4, int16_t y4); - - void rect(int16_t x, int16_t y, int16_t width, int16_t height); - - void rect(int16_t x, int16_t y, int16_t width, int16_t height, int16_t radius); - - void triangle(int16_t x1, int16_t y1, int16_t x2, int16_t y2, int16_t x3, int16_t y3); - - /* TODO - void rectMode(RectMode mode); - - void pushStyle(); - void popStyle(); - */ - -#if defined(__SD_H__) // Arduino SD library - PImage loadImage(const char * fileName) { return PImage::loadImage(fileName); } - - void image(PImage & img, uint16_t x, uint16_t y); -#endif - - protected: - int16_t WIDTH, HEIGHT; // this is the 'raw' display w/h - never changes - int16_t _width, _height; // dependent on rotation - int16_t cursor_x, cursor_y; - uint16_t textcolor, textbgcolor; - uint8_t textsize; - uint8_t rotation; - boolean wrap; // If set, 'wrap' text at right edge of display - - /* - * Processing-style graphics state - */ - - color strokeColor; - bool useStroke; - color fillColor; - bool useFill; -}; - -#if defined(__SD_H__) // Arduino SD library - -#define BUFFPIXEL 20 - -void Adafruit_GFX::image(PImage & img, uint16_t x, uint16_t y) { - int w, h, row, col; - uint8_t r, g, b; - uint32_t pos = 0; - uint8_t sdbuffer[3*BUFFPIXEL]; // pixel buffer (R+G+B per pixel) - uint8_t buffidx = sizeof(sdbuffer); // Current position in sdbuffer - - // Crop area to be loaded - w = img._bmpWidth; - h = img._bmpHeight; - if((x+w-1) >= width()) w = width() - x; - if((y+h-1) >= height()) h = height() - y; - - /* - // Set TFT address window to clipped image bounds - setAddrWindow(x, y, x+w-1, y+h-1); - */ - - for (row=0; row<h; row++) { // For each scanline... - // Seek to start of scan line. It might seem labor- - // intensive to be doing this on every line, but this - // method covers a lot of gritty details like cropping - // and scanline padding. Also, the seek only takes - // place if the file position actually needs to change - // (avoids a lot of cluster math in SD library). - if(img._flip) // Bitmap is stored bottom-to-top order (normal BMP) - pos = img._bmpImageoffset + (img._bmpHeight - 1 - row) * img._rowSize; - else // Bitmap is stored top-to-bottom - pos = img._bmpImageoffset + row * img._rowSize; - if(img._bmpFile.position() != pos) { // Need seek? - img._bmpFile.seek(pos); - buffidx = sizeof(sdbuffer); // Force buffer reload - } - - for (col=0; col<w; col++) { // For each pixel... - // Time to read more pixel data? - if (buffidx >= sizeof(sdbuffer)) { // Indeed - img._bmpFile.read(sdbuffer, sizeof(sdbuffer)); - buffidx = 0; // Set index to beginning - } - - // Convert pixel from BMP to TFT format, push to display - b = sdbuffer[buffidx++]; - g = sdbuffer[buffidx++]; - r = sdbuffer[buffidx++]; - //pushColor(tft.Color565(r,g,b)); - drawPixel(x + col, y + row, newColor(r, g, b)); - - } // end pixel - } // end scanline - -} - - - - -// These read 16- and 32-bit types from the SD card file. -// BMP data is stored little-endian, Arduino is little-endian too. -// May need to reverse subscript order if porting elsewhere. - -uint16_t PImage::read16(File f) { - uint16_t result; - ((uint8_t *)&result)[0] = f.read(); // LSB - ((uint8_t *)&result)[1] = f.read(); // MSB - return result; -} - -uint32_t PImage::read32(File f) { - uint32_t result; - ((uint8_t *)&result)[0] = f.read(); // LSB - ((uint8_t *)&result)[1] = f.read(); - ((uint8_t *)&result)[2] = f.read(); - ((uint8_t *)&result)[3] = f.read(); // MSB - return result; -} - - -PImage PImage::loadImage(const char * fileName) { - File bmpFile; - int bmpWidth, bmpHeight; // W+H in pixels - uint8_t bmpDepth; // Bit depth (currently must be 24) - uint32_t bmpImageoffset; // Start of image data in file - uint32_t rowSize; // Not always = bmpWidth; may have padding - bool flip = true; // BMP is stored bottom-to-top - - - // Open requested file on SD card - if ((bmpFile = SD.open(fileName)) == NULL) { - Serial.print("loadImage: file not found: "); - Serial.println(fileName); - return PImage(); // load error - } - - - - // Parse BMP header - if(read16(bmpFile) != 0x4D42) { // BMP signature - Serial.println("loadImage: file doesn't look like a BMP"); - return PImage(); - } - - Serial.print("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); - // Read DIB header - Serial.print("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"); - return PImage(); - } - - bmpDepth = read16(bmpFile); // bits per pixel - Serial.print("Bit Depth: "); Serial.println(bmpDepth); - if((bmpDepth != 24) || (read32(bmpFile) != 0)) { // 0 = uncompressed { - Serial.println("loadImage: invalid pixel format"); - return PImage(); - } - - Serial.print("Image size: "); - Serial.print(bmpWidth); - Serial.print('x'); - Serial.println(bmpHeight); - - // BMP rows are padded (if needed) to 4-byte boundary - rowSize = (bmpWidth * 3 + 3) & ~3; - - // If bmpHeight is negative, image is in top-down order. - // This is not canon but has been observed in the wild. - if(bmpHeight < 0) { - bmpHeight = -bmpHeight; - flip = false; - } - - return PImage(bmpFile, bmpWidth, bmpHeight, bmpDepth, bmpImageoffset, rowSize, flip); -} - -#endif - - - -#endif |