1 | /*Begining of Auto generated code by Atmel studio */
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2 | #include <Arduino.h>
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3 |
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4 | /*End of auto generated code by Atmel studio */
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5 |
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6 | /***************************************************
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7 | This is our Bitmap drawing example for the Adafruit HX8357 Breakout
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8 | ----> http://www.adafruit.com/products/2050
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9 |
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10 | Check out the links above for our tutorials and wiring diagrams
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11 | These displays use SPI to communicate, 4 or 5 pins are required to
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12 | interface (RST is optional)
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13 | Adafruit invests time and resources providing this open source code,
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14 | please support Adafruit and open-source hardware by purchasing
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15 | products from Adafruit!
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16 |
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17 | Written by Limor Fried/Ladyada for Adafruit Industries.
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18 | MIT license, all text above must be included in any redistribution
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19 | ****************************************************/
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20 |
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21 |
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22 | #include <Adafruit_GFX.h> // Core graphics library
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23 | #include "Adafruit_HX8357.h"
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24 | #include <SPI.h>
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25 | #include <SD.h>
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26 |
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27 | //Beginning of Auto generated function prototypes by Atmel Studio
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28 | void setup(void );
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29 | void bmpDraw(char filename, uint8_t x, uint16_t y);
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30 | uint16_t read16(File f);
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31 | uint32_t read32(File f);
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32 |
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33 | // TFT display and SD card will share the hardware SPI interface.
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34 | // Hardware SPI pins are specific to the Arduino board type and
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35 | // cannot be remapped to alternate pins. For Arduino Uno,
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36 | // Duemilanove, etc., pin 11 = MOSI, pin 12 = MISO, pin 13 = SCK.
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37 |
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38 | #define TFT_DC 47
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39 | #define TFT_CS 46
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40 |
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41 | // Use hardware SPI (on Uno, #13, #12, #11) and the above for CS/DC
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42 | Adafruit_HX8357 tft = Adafruit_HX8357(TFT_CS, TFT_DC);
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43 |
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44 | #define SD_CS 44
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45 |
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46 | void setup(void) {
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47 | Serial.begin(9600);
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48 |
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49 | tft.begin(HX8357D);
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50 | tft.fillScreen(HX8357_BLUE);
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51 |
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52 | Serial.print("Initializing SD card...");
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53 | if (!SD.begin(SD_CS)) {
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54 | Serial.println("failed!");
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55 | }
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56 | Serial.println("OK!");
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57 |
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58 | bmpDraw("jumpers.bmp", 0, 0); //Hier tritt der Fehler auf
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59 | }
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60 |
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61 | void loop() {
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62 | }
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63 |
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64 | // This function opens a Windows Bitmap (BMP) file and
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65 | // displays it at the given coordinates. It's sped up
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66 | // by reading many pixels worth of data at a time
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67 | // (rather than pixel by pixel). Increasing the buffer
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68 | // size takes more of the Arduino's precious RAM but
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69 | // makes loading a little faster. 20 pixels seems a
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70 | // good balance.
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71 |
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72 | #define BUFFPIXEL 20
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73 |
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74 | void bmpDraw(char *filename, uint8_t x, uint16_t y) {
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75 |
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76 | File bmpFile;
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77 | int bmpWidth, bmpHeight; // W+H in pixels
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78 | uint8_t bmpDepth; // Bit depth (currently must be 24)
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79 | uint32_t bmpImageoffset; // Start of image data in file
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80 | uint32_t rowSize; // Not always = bmpWidth; may have padding
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81 | uint8_t sdbuffer[3*BUFFPIXEL]; // pixel buffer (R+G+B per pixel)
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82 | uint8_t buffidx = sizeof(sdbuffer); // Current position in sdbuffer
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83 | boolean goodBmp = false; // Set to true on valid header parse
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84 | boolean flip = true; // BMP is stored bottom-to-top
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85 | int w, h, row, col;
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86 | uint8_t r, g, b;
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87 | uint32_t pos = 0, startTime = millis();
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88 |
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89 | if((x >= tft.width()) || (y >= tft.height())) return;
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90 |
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91 | Serial.println();
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92 | Serial.print(F("Loading image '"));
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93 | Serial.print(filename);
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94 | Serial.println('\'');
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95 |
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96 | // Open requested file on SD card
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97 | if ((bmpFile = SD.open(filename)) == NULL) {
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98 | Serial.print(F("File not found"));
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99 | return;
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100 | }
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101 |
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102 | // Parse BMP header
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103 | if(read16(bmpFile) == 0x4D42) { // BMP signature
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104 | Serial.print(F("File size: ")); Serial.println(read32(bmpFile));
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105 | (void)read32(bmpFile); // Read & ignore creator bytes
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106 | bmpImageoffset = read32(bmpFile); // Start of image data
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107 | Serial.print(F("Image Offset: ")); Serial.println(bmpImageoffset, DEC);
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108 | // Read DIB header
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109 | Serial.print(F("Header size: ")); Serial.println(read32(bmpFile));
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110 | bmpWidth = read32(bmpFile);
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111 | bmpHeight = read32(bmpFile);
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112 | if(read16(bmpFile) == 1) { // # planes -- must be '1'
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113 | bmpDepth = read16(bmpFile); // bits per pixel
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114 | Serial.print(F("Bit Depth: ")); Serial.println(bmpDepth);
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115 | if((bmpDepth == 24) && (read32(bmpFile) == 0)) { // 0 = uncompressed
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116 |
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117 | goodBmp = true; // Supported BMP format -- proceed!
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118 | Serial.print(F("Image size: "));
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119 | Serial.print(bmpWidth);
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120 | Serial.print('x');
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121 | Serial.println(bmpHeight);
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122 |
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123 | // BMP rows are padded (if needed) to 4-byte boundary
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124 | rowSize = (bmpWidth * 3 + 3) & ~3;
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125 |
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126 | // If bmpHeight is negative, image is in top-down order.
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127 | // This is not canon but has been observed in the wild.
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128 | if(bmpHeight < 0) {
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129 | bmpHeight = -bmpHeight;
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130 | flip = false;
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131 | }
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132 |
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133 | // Crop area to be loaded
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134 | w = bmpWidth;
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135 | h = bmpHeight;
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136 | if((x+w-1) >= tft.width()) w = tft.width() - x;
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137 | if((y+h-1) >= tft.height()) h = tft.height() - y;
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138 |
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139 | // Set TFT address window to clipped image bounds
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140 | tft.setAddrWindow(x, y, x+w-1, y+h-1);
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141 |
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142 | for (row=0; row<h; row++) { // For each scanline...
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143 |
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144 | // Seek to start of scan line. It might seem labor-
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145 | // intensive to be doing this on every line, but this
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146 | // method covers a lot of gritty details like cropping
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147 | // and scanline padding. Also, the seek only takes
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148 | // place if the file position actually needs to change
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149 | // (avoids a lot of cluster math in SD library).
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150 | if(flip) // Bitmap is stored bottom-to-top order (normal BMP)
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151 | pos = bmpImageoffset + (bmpHeight - 1 - row) * rowSize;
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152 | else // Bitmap is stored top-to-bottom
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153 | pos = bmpImageoffset + row * rowSize;
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154 | if(bmpFile.position() != pos) { // Need seek?
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155 | bmpFile.seek(pos);
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156 | buffidx = sizeof(sdbuffer); // Force buffer reload
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157 | }
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158 |
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159 | for (col=0; col<w; col++) { // For each pixel...
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160 | // Time to read more pixel data?
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161 | if (buffidx >= sizeof(sdbuffer)) { // Indeed
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162 | bmpFile.read(sdbuffer, sizeof(sdbuffer));
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163 | buffidx = 0; // Set index to beginning
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164 | }
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165 |
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166 | // Convert pixel from BMP to TFT format, push to display
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167 | b = sdbuffer[buffidx++];
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168 | g = sdbuffer[buffidx++];
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169 | r = sdbuffer[buffidx++];
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170 | tft.pushColor(tft.color565(r,g,b));
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171 | } // end pixel
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172 | } // end scanline
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173 | Serial.print(F("Loaded in "));
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174 | Serial.print(millis() - startTime);
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175 | Serial.println(" ms");
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176 | } // end goodBmp
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177 | }
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178 | }
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179 |
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180 | bmpFile.close();
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181 | if(!goodBmp) Serial.println(F("BMP format not recognized."));
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182 | }
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183 |
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184 | // These read 16- and 32-bit types from the SD card file.
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185 | // BMP data is stored little-endian, Arduino is little-endian too.
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186 | // May need to reverse subscript order if porting elsewhere.
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187 |
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188 | uint16_t read16(File &f) {
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189 | uint16_t result;
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190 | ((uint8_t *)&result)[0] = f.read(); // LSB
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191 | ((uint8_t *)&result)[1] = f.read(); // MSB
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192 | return result;
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193 | }
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194 |
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195 | uint32_t read32(File &f) {
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196 | uint32_t result;
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197 | ((uint8_t *)&result)[0] = f.read(); // LSB
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198 | ((uint8_t *)&result)[1] = f.read();
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199 | ((uint8_t *)&result)[2] = f.read();
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200 | ((uint8_t *)&result)[3] = f.read(); // MSB
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201 | return result;
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202 | }
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