claw::graphic::bitmap::reader::pixel1_to_pixel32 Class Reference

Functor converting a 1bpp buffer to a 32bpp buffer. More...

List of all members.

Public Member Functions
void	operator() (scanline &dest, const char *src, const color_palette_type &palette) const
	Convert a bitset array to a pixel32 scanline.

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Detailed Description

Functor converting a 1bpp buffer to a 32bpp buffer.

Definition at line 219 of file bitmap.hpp.

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Member Function Documentation

void claw::graphic::bitmap::reader::pixel1_to_pixel32::operator()	(	scanline &	dest,
		const char *	src,
		const color_palette_type &	palette
	)			const

Convert a bitset array to a pixel32 scanline.

Parameters:

	dest	(out) Filled scanline.
	src	Pixel array to convert.
	palette	Color palette.

Precondition:

palette.size() == 2

Definition at line 186 of file bitmap_reader.cpp.

References claw::graphic::image::scanline::begin(), and claw::graphic::image::scanline::size().

{
  assert(palette.size() == 2);

  scanline::iterator it( dest.begin() );
  const unsigned int n = dest.size();
  const unsigned int byte_size = 8; // 8 bits per byte
  const unsigned int upper_bound = n / byte_size;

  for (unsigned int i=0; i!=upper_bound; ++i)
    for (unsigned int j=0; j!=byte_size; ++j, ++it)
      if ( src[i] & (0x80 >> j) )
        *it = palette[1];
      else
        *it = palette[0];

  for (unsigned int j = 0; j != (n % byte_size); ++j, ++it)
    if ( src[upper_bound] & (0x80 >> j) )
      *it = palette[1];
    else
      *it = palette[0];
} // bitmap::reader::pixel1_to_pixel32()

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The documentation for this class was generated from the following files:

• bitmap.hpp
• code/bitmap_reader.cpp