117 lines
4.0 KiB
C
117 lines
4.0 KiB
C
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//----------------------------------------------------------------------------
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// Anti-Grain Geometry - Version 2.4
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// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
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//
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// Permission to copy, use, modify, sell and distribute this software
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// is granted provided this copyright notice appears in all copies.
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// This software is provided "as is" without express or implied
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// warranty, and with no claim as to its suitability for any purpose.
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//
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//----------------------------------------------------------------------------
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// Contact: mcseem@antigrain.com
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// mcseemagg@yahoo.com
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// http://www.antigrain.com
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//----------------------------------------------------------------------------
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//
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// class pixel_map
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//
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//----------------------------------------------------------------------------
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#ifndef AGG_WIN32_BMP_INCLUDED
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#define AGG_WIN32_BMP_INCLUDED
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#include <windows.h>
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namespace agg
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{
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enum org_e
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{
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org_mono8 = 8,
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org_color16 = 16,
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org_color24 = 24,
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org_color32 = 32,
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org_color48 = 48,
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org_color64 = 64
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};
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class pixel_map
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{
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public:
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~pixel_map();
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pixel_map();
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public:
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void destroy();
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void create(unsigned width,
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unsigned height,
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org_e org,
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unsigned clear_val=256);
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HBITMAP create_dib_section(HDC h_dc,
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unsigned width,
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unsigned height,
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org_e org,
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unsigned clear_val=256);
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void clear(unsigned clear_val=256);
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void attach_to_bmp(BITMAPINFO* bmp);
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BITMAPINFO* bitmap_info() { return m_bmp; }
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bool load_from_bmp(FILE* fd);
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bool save_as_bmp(FILE* fd) const;
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bool load_from_bmp(const char* filename);
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bool save_as_bmp(const char* filename) const;
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void draw(HDC h_dc,
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const RECT* device_rect=0,
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const RECT* bmp_rect=0) const;
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void draw(HDC h_dc, int x, int y, double scale=1.0) const;
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void blend(HDC h_dc,
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const RECT* device_rect=0,
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const RECT* bmp_rect=0) const;
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void blend(HDC h_dc, int x, int y, double scale=1.0) const;
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unsigned char* buf();
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unsigned width() const;
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unsigned height() const;
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int stride() const;
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unsigned bpp() const { return m_bpp; }
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//Auxiliary static functions
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static unsigned calc_full_size(BITMAPINFO *bmp);
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static unsigned calc_header_size(BITMAPINFO *bmp);
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static unsigned calc_palette_size(unsigned clr_used,
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unsigned bits_per_pixel);
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static unsigned calc_palette_size(BITMAPINFO *bmp);
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static unsigned char* calc_img_ptr(BITMAPINFO *bmp);
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static BITMAPINFO* create_bitmap_info(unsigned width,
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unsigned height,
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unsigned bits_per_pixel);
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static void create_gray_scale_palette(BITMAPINFO *bmp);
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static unsigned calc_row_len(unsigned width, unsigned bits_per_pixel);
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private:
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pixel_map(const pixel_map&);
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const pixel_map& operator = (const pixel_map&);
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void create_from_bmp(BITMAPINFO *bmp);
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HBITMAP create_dib_section_from_args(HDC h_dc,
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unsigned width,
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unsigned height,
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unsigned bits_per_pixel);
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private:
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BITMAPINFO* m_bmp;
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unsigned char* m_buf;
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unsigned m_bpp;
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bool m_is_internal;
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unsigned m_img_size;
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unsigned m_full_size;
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};
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}
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#endif
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