src/library/pixfmt-rgb32.cpp

   1 #include "pixfmt-rgb32.hpp"
   2
   3 pixel_format_rgb32::~pixel_format_rgb32() throw() {}
   4
   5 void pixel_format_rgb32::decode(uint32_t* target, const uint8_t* src, size_t width) throw()
   6 {
   7         const uint32_t* _src = reinterpret_cast<const uint32_t*>(src);
   8         for(size_t i = 0; i < width; i++)
   9                 target[i] = _src[i];
  10 }
  11
  12 void pixel_format_rgb32::decode(uint32_t* target, const uint8_t* src, size_t width,
  13         const pixel_format_aux_palette<false>& auxp) throw()
  14 {
  15         const uint32_t* _src = reinterpret_cast<const uint32_t*>(src);
  16         for(size_t i = 0; i < width; i++) {
  17                 target[i] = ((_src[i] >> 16) & 0xFF) << auxp.rshift;
  18                 target[i] |= ((_src[i] >> 8) & 0xFF) << auxp.gshift;
  19                 target[i] |= (_src[i] & 0xFF) << auxp.bshift;
  20         }
  21 }
  22
  23 void pixel_format_rgb32::decode(uint64_t* target, const uint8_t* src, size_t width,
  24         const pixel_format_aux_palette<true>& auxp) throw()
  25 {
  26         const uint32_t* _src = reinterpret_cast<const uint32_t*>(src);
  27         for(size_t i = 0; i < width; i++) {
  28                 target[i] = static_cast<uint64_t>((_src[i] >> 16) & 0xFF) << auxp.rshift;
  29                 target[i] |= static_cast<uint64_t>((_src[i] >> 8) & 0xFF) << auxp.gshift;
  30                 target[i] |= static_cast<uint64_t>(_src[i] & 0xFF) << auxp.bshift;
  31                 target[i] += (target[i] << 8);
  32         }
  33 }
  34
  35 void pixel_format_rgb32::set_palette(pixel_format_aux_palette<false>& auxp, uint8_t rshift, uint8_t gshift,
  36         uint8_t bshift) throw(std::bad_alloc)
  37 {
  38         auxp.rshift = rshift;
  39         auxp.gshift = gshift;
  40         auxp.bshift = bshift;
  41         auxp.pcache.clear();
  42 }
  43
  44 void pixel_format_rgb32::set_palette(pixel_format_aux_palette<true>& auxp, uint8_t rshift, uint8_t gshift,
  45         uint8_t bshift) throw(std::bad_alloc)
  46 {
  47         auxp.rshift = rshift;
  48         auxp.gshift = gshift;
  49         auxp.bshift = bshift;
  50         auxp.pcache.clear();
  51 }
  52
  53 uint8_t pixel_format_rgb32::get_bpp() throw()
  54 {
  55         return 4;
  56 }
  57
  58 uint8_t pixel_format_rgb32::get_ss_bpp() throw()
  59 {
  60         return 3;
  61 }
  62
  63 uint32_t pixel_format_rgb32::get_magic() throw()
  64 {
  65         return 0x74212536U;
  66 }
  67
  68 pixel_format_rgb32 _pixel_format_rgb32;