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