Usermode/Libraries/libaxwin4.so_src/window_drawing.cpp

   1 /*
   2  * AxWin4 Interface Library
   3  * - By John Hodge (thePowersGang)
   4  *
   5  * window_drawing.cpp
   6  * - Window drawing code
   7  */
   8 #include <axwin4/axwin.h>
   9 #include "include/common.hpp"
  10 #include <ipc_proto.hpp>
  11 #include <algorithm>    // min
  12
  13 namespace AxWin {
  14
  15 extern "C" void AxWin4_DrawBitmap(tAxWin4_Window *Window, int X, int Y, unsigned int W, unsigned int H, void *Data)
  16 {
  17         // TODO: Split message up into blocks such that it can be dispatched
  18         if( W > 128 )
  19         {
  20                 const uint32_t* data32 = static_cast<uint32_t*>(Data);
  21                 const unsigned int rows_per_message = 2048 / W;
  22                 for( unsigned int row = 0; row < H; row += rows_per_message )
  23                 {
  24                         CSerialiser     message;
  25                         message.WriteU8(IPCMSG_PUSHDATA);
  26                         message.WriteU16(Window->m_id);
  27                         message.WriteU16(X);
  28                         message.WriteU16(Y+row);
  29                         message.WriteU16(W);
  30                         message.WriteU16( ::std::min(rows_per_message,H-row) );
  31                         message.WriteBuffer(W*4, data32);
  32                         ::AxWin::SendMessage(message);
  33                         data32 += W*rows_per_message;
  34                 }
  35         }
  36         else
  37         {
  38                 CSerialiser     message;
  39                 message.WriteU8(IPCMSG_PUSHDATA);
  40                 message.WriteU16(Window->m_id);
  41                 message.WriteU16(X);
  42                 message.WriteU16(Y);
  43                 message.WriteU16(W);
  44                 message.WriteU16(H);
  45                 message.WriteBuffer(W*H*4, Data);
  46                 ::AxWin::SendMessage(message);
  47         }
  48 }
  49
  50 };      // namespace AxWin
  51