mirror of https://github.com/BOINC/boinc.git
58 lines
2.0 KiB
C++
58 lines
2.0 KiB
C++
#ifndef BITMAP_CLASS_H
|
|
#define BITMAP_CLASS_H
|
|
|
|
typedef unsigned char uchar; // We're lazy so typedef "unsigned char" as "uchar"
|
|
|
|
// We will use this class to load 24 and 32-bit .bmp for us
|
|
class DIB_BITMAP
|
|
{
|
|
public:
|
|
|
|
// Constructor() -- Zero's out DIB_BITMAP
|
|
DIB_BITMAP():hbitmap(NULL),surface_bits(NULL),bmp_width(0),bmp_height(0),
|
|
bmp_channels(0),bmp_stride(0) { GdiFlush(); /* Guarantee that writing to
|
|
DIB_BITMAP is okay */ }
|
|
|
|
// Data Access Functions ************
|
|
|
|
inline int get_width() const { return bmp_width; }
|
|
inline int get_height() const { return bmp_height; }
|
|
inline int get_channels() const { return bmp_channels; }
|
|
inline int get_stride() const { return bmp_stride; }
|
|
|
|
// ****** End of Data Access Functions
|
|
|
|
// Creates a "empty" DIB_BITMAP with the "traits" of the parameters passed in
|
|
// Returns true for success -- false otherwise
|
|
// If set_size is called on a DIB_BITMAP that already has memory associated with it
|
|
// that memory is freed and the new size is implemented
|
|
bool set_size(int width, int height, int channels);
|
|
|
|
// Loads a bmp with specified file_name -- Returns true on success, false otherwise
|
|
// If loadBMP() is called on a DIB_BITMAP that already has memory associated with
|
|
// it, that memory is freed and the .bmp is loaded
|
|
bool loadBMP(const char *file_name);
|
|
|
|
uchar* getLinePtr(int which_line); // returns a pointer to the line passed in
|
|
|
|
// Deconstructor();
|
|
~DIB_BITMAP();
|
|
|
|
|
|
private:
|
|
|
|
int bmp_width; // The width of the bitmap
|
|
int bmp_height; // The height of the bitmap
|
|
int bmp_channels; // How many channels is the bitmap (3 == 24-bit, 4 == 32-bit)
|
|
int bmp_stride; // The TRUE number of bytes in a scan line (in a line of pixels
|
|
// in memory)
|
|
|
|
HBITMAP hbitmap; // This will be the handle to our bitmap
|
|
|
|
uchar *surface_bits; // This is a pointer to the actual pixels of the bitmap
|
|
|
|
void FreeDIB_BMP(); // Frees all memory associated with DIB_BITMAP
|
|
};
|
|
|
|
#endif
|