Bitmap

bitmap.c

draw_bitmap

Arguments:

Argument	Position	Type
position	1	Point
data	2	const uint8_t *data

How it works:

[Takes the input] –> [Fetches the file_header and info_header from the data] –> [Checks the file_header->bfType to see if it is type BM (HEX: 4D42), if not, it does nothing] –> [Calculates the row size and then gets the pixel data] –> [Draws every pixel using the vbe_putpixel function]

Limits of draw_bitmap:

• Does not support Alpha (Defaults to opaque)

Also subject to change (｡◕‿◕｡)

bitmap.h

BITMAPFILEHEADER

file_header is type BITMAPFILEHEADER which is defined here:

typedef struct {
    uint16_t bfType;
    uint32_t bfSize;
    uint16_t bfReserved1;
    uint16_t bfReserved2;
    uint32_t bfOffBits;
} BITMAPFILEHEADER;

BITMAPINFOHEADER

file_header is type BITMAPFILEHEADER which is defined here:

typedef struct {
    uint32_t biSize;
    int32_t biWidth;
    int32_t biHeight;
    uint16_t biPlanes;
    uint16_t biBitCount;
    uint32_t biCompression;
    uint32_t biSizeImage;
    int32_t biXPelsPerMeter;
    int32_t biYPelsPerMeter;
    uint32_t biClrUsed;
    uint32_t biClrImportant;
} BITMAPINFOHEADER;