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Fr4nz D13trich 2025-11-22 13:58:55 +01:00
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commit 68073add76
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117
3party/agg/platform/win32/agg_win32_bmp.h Normal file
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//----------------------------------------------------------------------------
// Anti-Grain Geometry - Version 2.4
// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
//
// Permission to copy, use, modify, sell and distribute this software
// is granted provided this copyright notice appears in all copies.
// This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
//
//----------------------------------------------------------------------------
// Contact: mcseem@antigrain.com
// mcseemagg@yahoo.com
// http://www.antigrain.com
//----------------------------------------------------------------------------
//
// class pixel_map
//
//----------------------------------------------------------------------------
#ifndef AGG_WIN32_BMP_INCLUDED
#define AGG_WIN32_BMP_INCLUDED
#include <windows.h>
#include <stdio.h>
namespace agg
{
enum org_e
{
org_mono8 = 8,
org_color16 = 16,
org_color24 = 24,
org_color32 = 32,
org_color48 = 48,
org_color64 = 64
};
class pixel_map
{
public:
~pixel_map();
pixel_map();
public:
void destroy();
void create(unsigned width,
unsigned height,
org_e org,
unsigned clear_val=256);
HBITMAP create_dib_section(HDC h_dc,
unsigned width,
unsigned height,
org_e org,
unsigned clear_val=256);
void clear(unsigned clear_val=256);
void attach_to_bmp(BITMAPINFO* bmp);
BITMAPINFO* bitmap_info() { return m_bmp; }
bool load_from_bmp(FILE* fd);
bool save_as_bmp(FILE* fd) const;
bool load_from_bmp(const char* filename);
bool save_as_bmp(const char* filename) const;
void draw(HDC h_dc,
const RECT* device_rect=0,
const RECT* bmp_rect=0) const;
void draw(HDC h_dc, int x, int y, double scale=1.0) const;
void blend(HDC h_dc,
const RECT* device_rect=0,
const RECT* bmp_rect=0) const;
void blend(HDC h_dc, int x, int y, double scale=1.0) const;
unsigned char* buf();
unsigned width() const;
unsigned height() const;
int stride() const;
unsigned bpp() const { return m_bpp; }
//Auxiliary static functions
static unsigned calc_full_size(BITMAPINFO *bmp);
static unsigned calc_header_size(BITMAPINFO *bmp);
static unsigned calc_palette_size(unsigned clr_used,
unsigned bits_per_pixel);
static unsigned calc_palette_size(BITMAPINFO *bmp);
static unsigned char* calc_img_ptr(BITMAPINFO *bmp);
static BITMAPINFO* create_bitmap_info(unsigned width,
unsigned height,
unsigned bits_per_pixel);
static void create_gray_scale_palette(BITMAPINFO *bmp);
static unsigned calc_row_len(unsigned width, unsigned bits_per_pixel);
private:
pixel_map(const pixel_map&);
const pixel_map& operator = (const pixel_map&);
void create_from_bmp(BITMAPINFO *bmp);
HBITMAP create_dib_section_from_args(HDC h_dc,
unsigned width,
unsigned height,
unsigned bits_per_pixel);
private:
BITMAPINFO* m_bmp;
unsigned char* m_buf;
unsigned m_bpp;
bool m_is_internal;
unsigned m_img_size;
unsigned m_full_size;
};
}
#endif