Function TelcomRenderScanline

Descent3/TelCom.cpp:2008–2043

Renders the scanline to be drawn

//	Renders the scanline to be drawn
void TelcomRenderScanline(void) {
  if (scanline_handle <= BAD_BITMAP_HANDLE)
    return;

  rend_SetAlphaType(AT_SATURATE_TEXTURE_VERTEX);
  rend_SetAlphaValue(120);
  rend_SetLighting(LS_NONE);
  rend_SetColorModel(CM_MONO);
  rend_SetOverlayType(OT_NONE);
  rend_SetFiltering(0);
  rend_SetWrapType(WT_CLAMP);

  int x, end_x, start_x;
  float alphas[4];
  alphas[0] = 0;
  alphas[1] = 0;
  alphas[2] = 0.05f;
  alphas[3] = 0.05f;

  start_x = Telcom_system.Monitor_coords[MONITOR_MAIN].left;
  end_x = start_x + Telcom_system.Monitor_coords[MONITOR_MAIN].right - Telcom_system.Monitor_coords[MONITOR_MAIN].left;

  float end_time = timer_GetTime();

  while (end_time > scanline_nexttime) {
    for (x = start_x; x < end_x; x += 32)
      rend_DrawScaledBitmap(x, scanliney, x + 32, scanliney + 16, scanline_handle, 0, 0, 1, 1, -1, alphas);
    scanliney++;
    scanline_nexttime += scanline_speed;
  }

  if (scanliney > Telcom_system.Monitor_coords[MONITOR_MAIN].bottom)
    scanliney = Telcom_system.Monitor_coords[MONITOR_MAIN].top - 32;

  rend_SetFiltering(1);
}

//	Creates the scanline
void TelcomCreateScanLine(void) {