src/library/framebuffer-pixfmt-rgb32.cpp

   1 #include "framebuffer-pixfmt-rgb32.hpp"
   2
   3 namespace framebuffer
   4 {
   5 _pixfmt_rgb32::~_pixfmt_rgb32() throw() {}
   6
   7 void _pixfmt_rgb32::decode(uint32_t* target, const uint8_t* src, size_t width) throw()
   8 {
   9         const uint32_t* _src = reinterpret_cast<const uint32_t*>(src);
  10         for(size_t i = 0; i < width; i++)
  11                 target[i] = _src[i];
  12 }
  13
  14 void _pixfmt_rgb32::decode(uint32_t* target, const uint8_t* src, size_t width,
  15         const auxpalette<false>& auxp) throw()
  16 {
  17         const uint32_t* _src = reinterpret_cast<const uint32_t*>(src);
  18         for(size_t i = 0; i < width; i++) {
  19                 target[i] = ((_src[i] >> 16) & 0xFF) << auxp.rshift;
  20                 target[i] |= ((_src[i] >> 8) & 0xFF) << auxp.gshift;
  21                 target[i] |= (_src[i] & 0xFF) << auxp.bshift;
  22         }
  23 }
  24
  25 void _pixfmt_rgb32::decode(uint64_t* target, const uint8_t* src, size_t width,
  26         const auxpalette<true>& auxp) throw()
  27 {
  28         const uint32_t* _src = reinterpret_cast<const uint32_t*>(src);
  29         for(size_t i = 0; i < width; i++) {
  30                 target[i] = static_cast<uint64_t>((_src[i] >> 16) & 0xFF) << auxp.rshift;
  31                 target[i] |= static_cast<uint64_t>((_src[i] >> 8) & 0xFF) << auxp.gshift;
  32                 target[i] |= static_cast<uint64_t>(_src[i] & 0xFF) << auxp.bshift;
  33                 target[i] += (target[i] << 8);
  34         }
  35 }
  36
  37 void _pixfmt_rgb32::set_palette(auxpalette<false>& auxp, uint8_t rshift, uint8_t gshift,
  38         uint8_t bshift) throw(std::bad_alloc)
  39 {
  40         auxp.rshift = rshift;
  41         auxp.gshift = gshift;
  42         auxp.bshift = bshift;
  43         auxp.pcache.clear();
  44 }
  45
  46 void _pixfmt_rgb32::set_palette(auxpalette<true>& auxp, uint8_t rshift, uint8_t gshift,
  47         uint8_t bshift) throw(std::bad_alloc)
  48 {
  49         auxp.rshift = rshift;
  50         auxp.gshift = gshift;
  51         auxp.bshift = bshift;
  52         auxp.pcache.clear();
  53 }
  54
  55 uint8_t _pixfmt_rgb32::get_bpp() throw()
  56 {
  57         return 4;
  58 }
  59
  60 uint8_t _pixfmt_rgb32::get_ss_bpp() throw()
  61 {
  62         return 3;
  63 }
  64
  65 uint32_t _pixfmt_rgb32::get_magic() throw()
  66 {
  67         return 0x74212536U;
  68 }
  69
  70 _pixfmt_rgb32 pixfmt_rgb32;
  71 }