Liyou Zhou / Mbed 2 deprecated light_painting_strip

A neopixel light painting strip

Dependencies:   NeoStrip PinDetect mbed

BitmapFile.h@0:a26aca3e4760, 2015-11-10 (annotated)

Committer:
lz307
Date:
Tue Nov 10 21:28:51 2015 +0000
Revision:
0:a26aca3e4760
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lz307 0:a26aca3e4760 1 /**********************************************************/
lz307 0:a26aca3e4760 2 /*BitmapFile.h */
lz307 0:a26aca3e4760 3 /**********************************************************/
lz307 0:a26aca3e4760 4
lz307 0:a26aca3e4760 5 #include "mbed.h"
lz307 0:a26aca3e4760 6
lz307 0:a26aca3e4760 7 /* Class: BitmapFile
lz307 0:a26aca3e4760 8 * A parser for bitmap files.
lz307 0:a26aca3e4760 9 */
lz307 0:a26aca3e4760 10 class BitmapFile
lz307 0:a26aca3e4760 11 {
lz307 0:a26aca3e4760 12 private:
lz307 0:a26aca3e4760 13 FILE *m_pFile;
lz307 0:a26aca3e4760 14 char *m_fileName;
lz307 0:a26aca3e4760 15 int m_rowsize;
lz307 0:a26aca3e4760 16
lz307 0:a26aca3e4760 17 enum headerType { BITMAPCOREHEADER = 12,
lz307 0:a26aca3e4760 18 BITMAPCOREHEADER2 = 64,
lz307 0:a26aca3e4760 19 BITMAPINFOHEADER = 40,
lz307 0:a26aca3e4760 20 BITMAPV4HEADER = 108,
lz307 0:a26aca3e4760 21 BITMAPV5HEADER = 124};
lz307 0:a26aca3e4760 22
lz307 0:a26aca3e4760 23 enum compressType { BI_RGB,
lz307 0:a26aca3e4760 24 BI_RLE8,
lz307 0:a26aca3e4760 25 BI_RLE4,
lz307 0:a26aca3e4760 26 BI_BITFIELDS,
lz307 0:a26aca3e4760 27 BI_JPEG,
lz307 0:a26aca3e4760 28 BI_PNG};
lz307 0:a26aca3e4760 29
lz307 0:a26aca3e4760 30 /* Struct: BMPHeader
lz307 0:a26aca3e4760 31 *
lz307 0:a26aca3e4760 32 * The BMP header of the bitmap is read into this.
lz307 0:a26aca3e4760 33 *
lz307 0:a26aca3e4760 34 * b - the first byte of the header. Should equal 'B'.
lz307 0:a26aca3e4760 35 * m - the second byte of the header. Should equal 'M'.
lz307 0:a26aca3e4760 36 * filesize - the size of the whole file, in bytes.
lz307 0:a26aca3e4760 37 * reserved 1 and 2 - data specific to the applicaton which created the bitmap.
lz307 0:a26aca3e4760 38 * offset - the offset at which the actual bitmap begins
lz307 0:a26aca3e4760 39 */
lz307 0:a26aca3e4760 40
lz307 0:a26aca3e4760 41 __packed struct
lz307 0:a26aca3e4760 42 {
lz307 0:a26aca3e4760 43 char b:8;
lz307 0:a26aca3e4760 44 char m:8;
lz307 0:a26aca3e4760 45 int filesize:32;
lz307 0:a26aca3e4760 46 int reserved1:16;
lz307 0:a26aca3e4760 47 int reserved2:16;
lz307 0:a26aca3e4760 48 int offset:32;
lz307 0:a26aca3e4760 49
lz307 0:a26aca3e4760 50 } BMPHeader;
lz307 0:a26aca3e4760 51
lz307 0:a26aca3e4760 52
lz307 0:a26aca3e4760 53 /* Struct: DIBHeader
lz307 0:a26aca3e4760 54 *
lz307 0:a26aca3e4760 55 * The DIB header of the bitmap is read into this.
lz307 0:a26aca3e4760 56 *
lz307 0:a26aca3e4760 57 * headerlength - the length of the header. Should equal 40.
lz307 0:a26aca3e4760 58 * height - the height of the bitmap.
lz307 0:a26aca3e4760 59 * width - the width of the bitmap.
lz307 0:a26aca3e4760 60 * cplanes - the number of color planes. Should equal 1.
lz307 0:a26aca3e4760 61 * colordepth - the number of bits per pixel.
lz307 0:a26aca3e4760 62 * compression - the compression method used.
lz307 0:a26aca3e4760 63 * datasize - the size of the bitmap data, in bytes.
lz307 0:a26aca3e4760 64 */
lz307 0:a26aca3e4760 65
lz307 0:a26aca3e4760 66 int m_headerlength;
lz307 0:a26aca3e4760 67 __packed struct
lz307 0:a26aca3e4760 68 {
lz307 0:a26aca3e4760 69 int width:32;
lz307 0:a26aca3e4760 70 int height:32;
lz307 0:a26aca3e4760 71 int cplanes:16;
lz307 0:a26aca3e4760 72 int colordepth:16;
lz307 0:a26aca3e4760 73 int compression:32;
lz307 0:a26aca3e4760 74 int datasize:32;
lz307 0:a26aca3e4760 75 int hres:32;
lz307 0:a26aca3e4760 76 int vres:32;
lz307 0:a26aca3e4760 77 int numpalettecolors:32;
lz307 0:a26aca3e4760 78 int importantcolors:32;
lz307 0:a26aca3e4760 79 } DIBHeader;
lz307 0:a26aca3e4760 80
lz307 0:a26aca3e4760 81
lz307 0:a26aca3e4760 82 public:
lz307 0:a26aca3e4760 83 /* Constructor: BitmapFile
lz307 0:a26aca3e4760 84 * Create the BitmapFile class, and call <Initialize>
lz307 0:a26aca3e4760 85 *
lz307 0:a26aca3e4760 86 * Parameters:
lz307 0:a26aca3e4760 87 * fname - The path of the file to open.
lz307 0:a26aca3e4760 88 */
lz307 0:a26aca3e4760 89 BitmapFile(char* fname);
lz307 0:a26aca3e4760 90 ~BitmapFile();
lz307 0:a26aca3e4760 91
lz307 0:a26aca3e4760 92 /* Function: Initialize
lz307 0:a26aca3e4760 93 * Parses the headers of the bitmap.
lz307 0:a26aca3e4760 94 *
lz307 0:a26aca3e4760 95 * Returns:
lz307 0:a26aca3e4760 96 * Whether the bitmap is valid.
lz307 0:a26aca3e4760 97 */
lz307 0:a26aca3e4760 98 bool Initialize(); //parses the header
lz307 0:a26aca3e4760 99
lz307 0:a26aca3e4760 100 /* Function: open
lz307 0:a26aca3e4760 101 * Opens the bitmap for reading, if not already open.
lz307 0:a26aca3e4760 102 */
lz307 0:a26aca3e4760 103 void open();
lz307 0:a26aca3e4760 104
lz307 0:a26aca3e4760 105 /* Function: close
lz307 0:a26aca3e4760 106 * Closes the bitmap.
lz307 0:a26aca3e4760 107 */
lz307 0:a26aca3e4760 108 void close();
lz307 0:a26aca3e4760 109
lz307 0:a26aca3e4760 110 /***BMP Header gets begin***/
lz307 0:a26aca3e4760 111 int getFileSize();
lz307 0:a26aca3e4760 112 int getReserved1();
lz307 0:a26aca3e4760 113 int getReserved2();
lz307 0:a26aca3e4760 114 int getOffset();
lz307 0:a26aca3e4760 115
lz307 0:a26aca3e4760 116 /***DIB Header gets begin***/
lz307 0:a26aca3e4760 117 int getHeaderType();
lz307 0:a26aca3e4760 118 int getHeight();
lz307 0:a26aca3e4760 119 int getWidth();
lz307 0:a26aca3e4760 120 int getCPlanes();
lz307 0:a26aca3e4760 121 int getColorDepth();
lz307 0:a26aca3e4760 122 int getCompression();
lz307 0:a26aca3e4760 123 int getDataSize();
lz307 0:a26aca3e4760 124 int getHRes();
lz307 0:a26aca3e4760 125 int getVRes();
lz307 0:a26aca3e4760 126 int getNumPaletteColors();
lz307 0:a26aca3e4760 127 int getImportantColors();
lz307 0:a26aca3e4760 128 /****DIB Header gets end****/
lz307 0:a26aca3e4760 129
lz307 0:a26aca3e4760 130 /******Data gets begin******/
lz307 0:a26aca3e4760 131 /* Function: getPixel
lz307 0:a26aca3e4760 132 * Gets the color of a pixel
lz307 0:a26aca3e4760 133 *
lz307 0:a26aca3e4760 134 * Parameters:
lz307 0:a26aca3e4760 135 * x - The x coordinate of the pixel.
lz307 0:a26aca3e4760 136 * y - The y coordinate of the pixel.
lz307 0:a26aca3e4760 137 * closefile - if specified, close the file after reading
lz307 0:a26aca3e4760 138 *
lz307 0:a26aca3e4760 139 * Returns:
lz307 0:a26aca3e4760 140 * the color of the pixel, in hexadecimal.
lz307 0:a26aca3e4760 141 */
lz307 0:a26aca3e4760 142 int getPixel(int x, int y, bool closefile = true);
lz307 0:a26aca3e4760 143 /* Function: getRow
lz307 0:a26aca3e4760 144 * Gets the colors of a row
lz307 0:a26aca3e4760 145 *
lz307 0:a26aca3e4760 146 * Parameters:
lz307 0:a26aca3e4760 147 * row - The number of the row..
lz307 0:a26aca3e4760 148 * closefile - if specified, close the file after reading
lz307 0:a26aca3e4760 149 *
lz307 0:a26aca3e4760 150 * Returns:
lz307 0:a26aca3e4760 151 * An array of the colors of the pixels, in hexadecimal.
lz307 0:a26aca3e4760 152 */
lz307 0:a26aca3e4760 153 int *getRow(int row, bool closefile = true);
lz307 0:a26aca3e4760 154 int *getRowBW(int row, bool closefile = true);
lz307 0:a26aca3e4760 155 char *getRowBitstream(int row, bool closefile = true);
lz307 0:a26aca3e4760 156 /*******Data gets end*******/
lz307 0:a26aca3e4760 157 int getRowSize();
lz307 0:a26aca3e4760 158 };