Kerry Martin / RA8875

KSM edits to RA8875

Dependents:   Liz_Test_Code

Bitmap.h@42:7cbdfd2bbfc5, 2014-02-23 (annotated)

Committer:
WiredHome
Date:
Sun Feb 23 17:58:39 2014 +0000
Revision:
42:7cbdfd2bbfc5
Parent:
32:0e4f2ae512e2
Child:
125:7a0b70f56550
Added initial support for .ico file format (does not yet account for them being 2 x height for the mask), but this permitted generalizing the API for loading an image from the file system.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
WiredHome 31:c72e12cd5c67 1 //
WiredHome 31:c72e12cd5c67 2 // Windows BMP file definitions.
WiredHome 31:c72e12cd5c67 3 //
WiredHome 31:c72e12cd5c67 4 // Adapted from code written by Michael Sweet from Paul Bourke's
WiredHome 31:c72e12cd5c67 5 // web site: http://paulbourke.net/dataformats/bmp/
WiredHome 31:c72e12cd5c67 6 //
WiredHome 31:c72e12cd5c67 7
WiredHome 31:c72e12cd5c67 8 #ifndef _BITMAP_H_
WiredHome 31:c72e12cd5c67 9 #define _BITMAP_H_
WiredHome 31:c72e12cd5c67 10
WiredHome 31:c72e12cd5c67 11 #include <mbed.h>
WiredHome 31:c72e12cd5c67 12
WiredHome 31:c72e12cd5c67 13 // BITMAPFILEHEADER
WiredHome 31:c72e12cd5c67 14 // BITMAPINFOHEADER
WiredHome 31:c72e12cd5c67 15 // Optional Palette
WiredHome 31:c72e12cd5c67 16 // Raw Data
WiredHome 31:c72e12cd5c67 17
WiredHome 31:c72e12cd5c67 18 //
WiredHome 31:c72e12cd5c67 19 // Bitmap file data structures
WiredHome 31:c72e12cd5c67 20 //
WiredHome 32:0e4f2ae512e2 21 // must align to 2-byte boundaries so it doesn't alter the memory image when
WiredHome 32:0e4f2ae512e2 22 // bytes are read from the file system into this footprint.
WiredHome 31:c72e12cd5c67 23 #pragma push
WiredHome 31:c72e12cd5c67 24 #pragma pack(2)
WiredHome 31:c72e12cd5c67 25
WiredHome 42:7cbdfd2bbfc5 26 typedef struct /**** BMP file header structure ****/
WiredHome 31:c72e12cd5c67 27 {
WiredHome 31:c72e12cd5c67 28 uint16_t bfType; /* Magic number for file */
WiredHome 31:c72e12cd5c67 29 uint32_t bfSize; /* Size of file */
WiredHome 31:c72e12cd5c67 30 uint16_t bfReserved1; /* Reserved */
WiredHome 31:c72e12cd5c67 31 uint16_t bfReserved2; /* ... */
WiredHome 31:c72e12cd5c67 32 uint32_t bfOffBits; /* Offset to bitmap data */
WiredHome 31:c72e12cd5c67 33 } BITMAPFILEHEADER;
WiredHome 31:c72e12cd5c67 34
WiredHome 31:c72e12cd5c67 35 typedef struct /**** BMP file info structure ****/
WiredHome 31:c72e12cd5c67 36 {
WiredHome 31:c72e12cd5c67 37 uint32_t biSize; /* Size of info header */
WiredHome 31:c72e12cd5c67 38 uint32_t biWidth; /* Width of image */
WiredHome 31:c72e12cd5c67 39 uint32_t biHeight; /* Height of image */
WiredHome 31:c72e12cd5c67 40 uint16_t biPlanes; /* Number of color planes */
WiredHome 31:c72e12cd5c67 41 uint16_t biBitCount; /* Number of bits per pixel */
WiredHome 31:c72e12cd5c67 42 uint32_t biCompression; /* Type of compression to use */
WiredHome 31:c72e12cd5c67 43 uint32_t biSizeImage; /* Size of image data */
WiredHome 31:c72e12cd5c67 44 int32_t biXPelsPerMeter; /* X pixels per meter */
WiredHome 31:c72e12cd5c67 45 int32_t biYPelsPerMeter; /* Y pixels per meter */
WiredHome 31:c72e12cd5c67 46 uint32_t biClrUsed; /* Number of colors used */
WiredHome 31:c72e12cd5c67 47 uint32_t biClrImportant; /* Number of important colors */
WiredHome 31:c72e12cd5c67 48 } BITMAPINFOHEADER;
WiredHome 31:c72e12cd5c67 49 #pragma pop
WiredHome 31:c72e12cd5c67 50
WiredHome 32:0e4f2ae512e2 51 #define BF_TYPE 0x4D42 /* "MB" */
WiredHome 32:0e4f2ae512e2 52
WiredHome 31:c72e12cd5c67 53 /*
WiredHome 31:c72e12cd5c67 54 * Constants for the biCompression field...
WiredHome 31:c72e12cd5c67 55 */
WiredHome 31:c72e12cd5c67 56
WiredHome 31:c72e12cd5c67 57 # define BI_RGB 0 /* No compression - straight BGR data */
WiredHome 31:c72e12cd5c67 58 # define BI_RLE8 1 /* 8-bit run-length compression */
WiredHome 31:c72e12cd5c67 59 # define BI_RLE4 2 /* 4-bit run-length compression */
WiredHome 31:c72e12cd5c67 60 # define BI_BITFIELDS 3 /* RGB bitmap with RGB masks */
WiredHome 31:c72e12cd5c67 61
WiredHome 31:c72e12cd5c67 62 typedef struct /**** Colormap entry structure ****/
WiredHome 31:c72e12cd5c67 63 {
WiredHome 31:c72e12cd5c67 64 uint8_t rgbBlue; /* Blue value */
WiredHome 31:c72e12cd5c67 65 uint8_t rgbGreen; /* Green value */
WiredHome 31:c72e12cd5c67 66 uint8_t rgbRed; /* Red value */
WiredHome 31:c72e12cd5c67 67 uint8_t rgbReserved; /* Reserved */
WiredHome 31:c72e12cd5c67 68 } RGBQUAD;
WiredHome 31:c72e12cd5c67 69
WiredHome 32:0e4f2ae512e2 70 //typedef struct /**** Bitmap information structure ****/
WiredHome 32:0e4f2ae512e2 71 // {
WiredHome 32:0e4f2ae512e2 72 // BITMAPINFOHEADER bmiHeader; /* Image header */
WiredHome 32:0e4f2ae512e2 73 // RGBQUAD bmiColors[256]; /* Image colormap */
WiredHome 32:0e4f2ae512e2 74 // } BITMAPINFO;
WiredHome 31:c72e12cd5c67 75
WiredHome 42:7cbdfd2bbfc5 76
WiredHome 42:7cbdfd2bbfc5 77 #pragma push
WiredHome 42:7cbdfd2bbfc5 78 #pragma pack(2)
WiredHome 42:7cbdfd2bbfc5 79
WiredHome 42:7cbdfd2bbfc5 80 typedef struct /**** ICO file header structure ****/
WiredHome 42:7cbdfd2bbfc5 81 {
WiredHome 42:7cbdfd2bbfc5 82 uint16_t Reserved_zero; // Always zero
WiredHome 42:7cbdfd2bbfc5 83 uint16_t icType; // 1 for .ico, 2 for .cur
WiredHome 42:7cbdfd2bbfc5 84 uint16_t icImageCount; // number of images in the file
WiredHome 42:7cbdfd2bbfc5 85 } ICOFILEHEADER;
WiredHome 42:7cbdfd2bbfc5 86
WiredHome 42:7cbdfd2bbfc5 87 typedef struct /**** ICO file Directory Entry structure (1 or more) ****/
WiredHome 42:7cbdfd2bbfc5 88 {
WiredHome 42:7cbdfd2bbfc5 89 uint8_t biWidth; /* Width of image */
WiredHome 42:7cbdfd2bbfc5 90 uint8_t biHeight; /* Height of image */
WiredHome 42:7cbdfd2bbfc5 91 uint8_t biClrUsed; /* Number of colors used */
WiredHome 42:7cbdfd2bbfc5 92 uint8_t Reserved_zero;
WiredHome 42:7cbdfd2bbfc5 93 uint16_t biPlanes; /* Number of color planes (ICO should be 0 or 1, CUR horz hotspot */
WiredHome 42:7cbdfd2bbfc5 94 uint16_t biBitCount; /* Number of bits per pixel (ICO bits per pixel, CUR vert hotspot */
WiredHome 42:7cbdfd2bbfc5 95 uint32_t biSizeImage; /* Size of image data */
WiredHome 42:7cbdfd2bbfc5 96 uint32_t bfOffBits; /* Offset into file for the bitmap data */
WiredHome 42:7cbdfd2bbfc5 97 } ICODIRENTRY;
WiredHome 42:7cbdfd2bbfc5 98 #pragma pop
WiredHome 42:7cbdfd2bbfc5 99
WiredHome 42:7cbdfd2bbfc5 100 #define IC_TYPE 0x0001 /* 1 = ICO (icon), 2 = CUR (cursor) */
WiredHome 42:7cbdfd2bbfc5 101
WiredHome 31:c72e12cd5c67 102 #endif // _BITMAP_H_