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114 lines
2.8 KiB
114 lines
2.8 KiB
7 years ago
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/*
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BMP-File Demonstration
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*/
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#include <Wire.h>
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#include <SPI.h>
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#include <digitalWriteFast.h>
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#include <GraphicsLib.h>
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#include <MI0283QT2.h>
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#include <MI0283QT9.h>
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#include <DisplaySPI.h>
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#include <DisplayI2C.h>
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#include <SD.h>
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#include <BMPheader.h>
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//Declare only one display !
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// MI0283QT2 lcd; //MI0283QT2 Adapter v1
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// MI0283QT9 lcd; //MI0283QT9 Adapter v1
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// DisplaySPI lcd; //SPI (GLCD-Shield or MI0283QT Adapter v2)
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DisplayI2C lcd; //I2C (GLCD-Shield or MI0283QT Adapter v2)
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uint8_t OpenBMPFile(char *file, int16_t x, int16_t y)
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{
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File myFile;
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uint8_t buf[40]; //read buf (min. size = sizeof(BMP_DIPHeader))
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BMP_Header *bmp_hd;
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BMP_DIPHeader *bmp_dip;
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int16_t width, height, w, h;
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uint8_t pad, result=0;
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//open file
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myFile = SD.open(file);
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if(myFile)
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{
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result = 1;
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//BMP Header
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myFile.read(&buf, sizeof(BMP_Header));
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bmp_hd = (BMP_Header*)&buf[0];
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if((bmp_hd->magic[0] == 'B') && (bmp_hd->magic[1] == 'M') && (bmp_hd->offset == 54))
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{
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result = 2;
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//BMP DIP-Header
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myFile.read(&buf, sizeof(BMP_DIPHeader));
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bmp_dip = (BMP_DIPHeader*)&buf[0];
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if((bmp_dip->size == sizeof(BMP_DIPHeader)) && (bmp_dip->bitspp == 24) && (bmp_dip->compress == 0))
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{
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result = 3;
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//BMP Data (1. pixel = bottom left)
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width = bmp_dip->width;
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height = bmp_dip->height;
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pad = width % 4; //padding (line is multiply of 4)
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if((x+width) <= lcd.getWidth() && (y+height) <= lcd.getHeight())
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{
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result = 4;
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lcd.setArea(x, y, x+width-1, y+height-1);
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for(h=(y+height-1); h >= y; h--) //for every line
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{
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for(w=x; w < (x+width); w++) //for every pixel in line
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{
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myFile.read(&buf, 3);
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lcd.drawPixel(w, h, RGB(buf[2],buf[1],buf[0]));
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}
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if(pad)
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{
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myFile.read(&buf, pad);
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}
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}
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}
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else
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{
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lcd.drawText(x, y, "Pic out of screen!", RGB(0,0,0), RGB(255,255,255), 1);
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}
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}
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}
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myFile.close();
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}
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return result;
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}
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void setup()
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{
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int x, i;
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//init Display
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lcd.begin();
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//lcd.begin(SPI_CLOCK_DIV4, 8); //SPI Displays: spi-clk=Fcpu/4, rst-pin=8
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//lcd.begin(0x20, 8); //I2C Displays: addr=0x20, rst-pin=8
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lcd.fillScreen(RGB(255,255,255));
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//init SD-Card
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x = lcd.drawText(5, 5, "Init SD-Card...", RGB(0,0,0), RGB(255,255,255), 1);
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if(!SD.begin(4)) //cs-pin=4
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{
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lcd.drawText(x, 5, "failed", RGB(0,0,0), RGB(255,255,255), 1);
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while(1);
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}
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//open windows bmp file (24bit RGB)
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x = lcd.drawText(5, 5, "Open File...", RGB(0,0,0), RGB(255,255,255), 1);
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i = OpenBMPFile("image.bmp", 20, 20);
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lcd.drawInteger(x, 5, i, 10, RGB(0,0,0), RGB(255,255,255), 1);
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}
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void loop()
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{
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//do nothing
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}
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