Function rend_DrawLine

renderer/HardwareOpenGL.cpp:1817–1848

Draws a line

// Draws a line
void rend_DrawLine(int x1, int y1, int x2, int y2) {
  int8_t atype;
  light_state ltype;
  texture_type ttype;
  int color = gpu_state.cur_color;

  g3_RefreshTransforms(true);

  int r = GR_COLOR_RED(color);
  int g = GR_COLOR_GREEN(color);
  int b = GR_COLOR_BLUE(color);

  atype = gpu_state.cur_alpha_type;
  ltype = gpu_state.cur_light_state;
  ttype = gpu_state.cur_texture_type;

  rend_SetAlphaType(AT_ALWAYS);
  rend_SetLighting(LS_NONE);
  rend_SetTextureType(TT_FLAT);

  // TODO: Generalize
  dglBegin(GL_LINES);
  dglColor4ub(r, g, b, 255);
  dglVertex2i(x1 + gpu_state.clip_x1, y1 + gpu_state.clip_y1);
  dglColor4ub(r, g, b, 255);
  dglVertex2i(x2 + gpu_state.clip_x1, y2 + gpu_state.clip_y1);
  dglEnd();

  rend_SetAlphaType(atype);
  rend_SetLighting(ltype);
  rend_SetTextureType(ttype);
}

// Sets the color of fog
void rend_SetFogColor(ddgr_color color) {