Diff: Bitmap.h

Revision:

31:c72e12cd5c67

Child:

32:0e4f2ae512e2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Bitmap.h	Mon Jan 20 19:19:48 2014 +0000
@@ -0,0 +1,83 @@
+//
+// Windows BMP file definitions.
+//
+// Adapted from code written by Michael Sweet from Paul Bourke's
+// web site: http://paulbourke.net/dataformats/bmp/
+//
+
+#ifndef _BITMAP_H_
+#define _BITMAP_H_
+
+#include <mbed.h>
+
+// BITMAPFILEHEADER
+// BITMAPINFOHEADER
+// Optional Palette
+// Raw Data
+
+//
+// Bitmap file data structures
+//
+#pragma push
+#pragma pack(2)
+
+typedef struct                 /**** BMP file header structure ****/
+    {
+    uint16_t    bfType;           /* Magic number for file */
+    uint32_t    bfSize;           /* Size of file */
+    uint16_t    bfReserved1;      /* Reserved */
+    uint16_t    bfReserved2;      /* ... */
+    uint32_t    bfOffBits;        /* Offset to bitmap data */
+    } BITMAPFILEHEADER;
+
+#define BF_TYPE 0x4D42            /* "MB" */
+
+typedef struct                    /**** BMP file info structure ****/
+    {
+    uint32_t    biSize;           /* Size of info header */
+    uint32_t    biWidth;          /* Width of image */
+    uint32_t    biHeight;         /* Height of image */
+    uint16_t    biPlanes;         /* Number of color planes */
+    uint16_t    biBitCount;       /* Number of bits per pixel */
+    uint32_t    biCompression;    /* Type of compression to use */
+    uint32_t    biSizeImage;      /* Size of image data */
+    int32_t     biXPelsPerMeter;  /* X pixels per meter */
+    int32_t     biYPelsPerMeter;  /* Y pixels per meter */
+    uint32_t    biClrUsed;        /* Number of colors used */
+    uint32_t    biClrImportant;   /* Number of important colors */
+    } BITMAPINFOHEADER;
+#pragma pop
+
+/*
+ * Constants for the biCompression field...
+ */
+
+#  define BI_RGB       0             /* No compression - straight BGR data */
+#  define BI_RLE8      1             /* 8-bit run-length compression */
+#  define BI_RLE4      2             /* 4-bit run-length compression */
+#  define BI_BITFIELDS 3             /* RGB bitmap with RGB masks */
+
+typedef struct                       /**** Colormap entry structure ****/
+    {
+    uint8_t  rgbBlue;          /* Blue value */
+    uint8_t  rgbGreen;         /* Green value */
+    uint8_t  rgbRed;           /* Red value */
+    uint8_t  rgbReserved;      /* Reserved */
+    } RGBQUAD;
+
+typedef struct                       /**** Bitmap information structure ****/
+    {
+    BITMAPINFOHEADER bmiHeader;      /* Image header */
+    RGBQUAD          bmiColors[256]; /* Image colormap */
+    } BITMAPINFO;
+
+
+/*
+ * Prototypes...
+ */
+
+//extern GLubyte *LoadDIBitmap(const char *filename, BITMAPINFO **info);
+//extern int32_t    SaveDIBitmap(const char *filename, BITMAPINFO *info,
+//                            GLubyte *bits);
+
+#endif // _BITMAP_H_