Function opengl_SetDefaults

renderer/HardwareOpenGL.cpp:327–390

Sets default states for our renderer

// Sets default states for our renderer
void opengl_SetDefaults() {
  mprintf(0, "Setting states\n");

  gpu_state.cur_color = 0x00FFFFFF;
  gpu_state.cur_bilinear_state = -1;
  gpu_state.cur_zbuffer_state = -1;
  gpu_state.cur_texture_quality = -1;
  gpu_state.cur_light_state = LS_GOURAUD;
  gpu_state.cur_color_model = CM_MONO;
  gpu_state.cur_bilinear_state = -1;
  gpu_state.cur_alpha_type = AT_TEXTURE;

  // Enable some states
  dglAlphaFunc(GL_GREATER, 0);
  dglEnable(GL_ALPHA_TEST);
  dglEnable(GL_BLEND);
  dglEnable(GL_DITHER);
  opengl_Blending_on = true;

  rend_SetAlphaType(AT_ALWAYS);
  rend_SetAlphaValue(255);
  rend_SetFiltering(1);
  rend_SetLightingState(LS_NONE);
  rend_SetTextureType(TT_FLAT);
  rend_SetColorModel(CM_RGB);
  rend_SetZBufferState(1);
  rend_SetZValues(0, 3000);
  rend_SetGammaValue(gpu_preferred_state.gamma);
  OpenGL_last_bound[0] = 9999999;
  OpenGL_last_bound[1] = 9999999;
  Last_texel_unit_set = -1;
  OpenGL_multitexture_state = false;

  dglEnableClientState(GL_VERTEX_ARRAY);
  dglEnableClientState(GL_COLOR_ARRAY);
  dglEnableClientState(GL_TEXTURE_COORD_ARRAY);

  dglHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
  dglHint(GL_FOG_HINT, GL_NICEST);
  dglEnable(GL_SCISSOR_TEST);
  dglScissor(0, 0, gpu_state.screen_width, gpu_state.screen_height);
  dglDisable(GL_SCISSOR_TEST);
  dglDepthRange(0.0f, 1.0f);

  if (UseMultitexture) {
#if (defined(_USE_OGL_ACTIVE_TEXTURES))
    oglActiveTextureARB(GL_TEXTURE0_ARB + 1);
    oglClientActiveTextureARB(GL_TEXTURE0_ARB + 1);
    dglEnableClientState(GL_TEXTURE_COORD_ARRAY);
    dglHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
    dglHint(GL_FOG_HINT, GL_NICEST);

    oglClientActiveTextureARB(GL_TEXTURE0_ARB + 0);

    dglDisable(GL_TEXTURE_2D);
    dglAlphaFunc(GL_GREATER, 0);
    dglEnable(GL_ALPHA_TEST);
    dglEnable(GL_BLEND);