int gl_dot3arb = false;
// GL_SGIS_texture_edge_clamp
int gl_support_clamptoedge = false;
-// GL_NV_vertex_array_range
-int gl_support_var = false;
-// GL_NV_vertex_array_range2
-int gl_support_var2 = false;
// GL_EXT_texture_filter_anisotropic
int gl_support_anisotropy = false;
int gl_max_anisotropy = 1;
{NULL, NULL}
};
-static dllfunction_t glxvarfuncs[] =
-{
- {"glXAllocateMemoryNV", (void **) &qglAllocateMemoryNV},
- {"glXFreeMemoryNV", (void **) &qglFreeMemoryNV},
- {"glVertexArrayRangeNV", (void **) &qglVertexArrayRangeNV},
- {"glFlushVertexArrayRangeNV", (void **) &qglFlushVertexArrayRangeNV},
- {NULL, NULL}
-};
-
-static dllfunction_t wglvarfuncs[] =
-{
- {"wglAllocateMemoryNV", (void **) &qglAllocateMemoryNV},
- {"wglFreeMemoryNV", (void **) &qglFreeMemoryNV},
- {"glVertexArrayRangeNV", (void **) &qglVertexArrayRangeNV},
- {"glFlushVertexArrayRangeNV", (void **) &qglFlushVertexArrayRangeNV},
- {NULL, NULL}
-};
-
static dllfunction_t stenciltwosidefuncs[] =
{
{"glActiveStencilFaceEXT", (void **) &qglActiveStencilFaceEXT},
gl_textureunits = 1;
gl_combine_extension = false;
gl_supportslockarrays = false;
- gl_videosyncavailable = false;
gl_texture3d = false;
gl_texturecubemap = false;
gl_dot3arb = false;
gl_support_clamptoedge = false;
- gl_support_var = false;
- gl_support_var2 = false;
gl_support_anisotropy = false;
gl_max_anisotropy = 1;
gl_textureshader = false;
Con_DPrint("Checking OpenGL extensions...\n");
+// COMMANDLINEOPTION: -nodrawrangeelements disables GL_EXT_draw_range_elements (renders faster)
if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
+// COMMANDLINEOPTION: -nomtex disables GL_ARB_multitexture (required for faster map rendering)
if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
{
qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
+// COMMANDLINEOPTION: -nocombine disables GL_ARB_texture_env_combine or GL_EXT_texture_env_combine (required for bumpmapping and faster map rendering)
gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
+// COMMANDLINEOPTION: -nodot3 disables GL_ARB_texture_env_dot3 (required for bumpmapping)
if (gl_combine_extension)
gl_dot3arb = GL_CheckExtension("GL_ARB_texture_env_dot3", NULL, "-nodot3", false);
}
+// COMMANDLINEOPTION: -notexture3d disables GL_EXT_texture3D (required for spherical lights, otherwise they render as a column)
gl_texture3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false);
+// COMMANDLINEOPTION: -nocubemap disables GL_ARB_texture_cube_map (required for bumpmapping)
gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false);
+// COMMANDLINEOPTION: -nocva disables GL_EXT_compiled_vertex_array (renders faster)
gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
+// COMMANDLINEOPTION: -noedgeclamp disables GL_EXT_texture_edge_clamp or GL_SGIS_texture_edge_clamp (recommended, some cards do not support the other texture clamp method)
gl_support_clamptoedge = GL_CheckExtension("GL_EXT_texture_edge_clamp", NULL, "-noedgeclamp", false) || GL_CheckExtension("GL_SGIS_texture_edge_clamp", NULL, "-noedgeclamp", false);
- if (!strcmp(gl_platform, "GLX"))
- gl_support_var = GL_CheckExtension("GL_NV_vertex_array_range", glxvarfuncs, "-novar", false);
- else if (!strcmp(gl_platform, "WGL"))
- gl_support_var = GL_CheckExtension("GL_NV_vertex_array_range", wglvarfuncs, "-novar", false);
- if (gl_support_var)
- gl_support_var2 = GL_CheckExtension("GL_NV_vertex_array_range2", NULL, "-novar2", false);
-
+// COMMANDLINEOPTION: -noanisotropy disables GL_EXT_texture_filter_anisotropic (allows higher quality texturing)
if ((gl_support_anisotropy = GL_CheckExtension("GL_EXT_texture_filter_anisotropic", NULL, "-noanisotropy", false)))
qglGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &gl_max_anisotropy);
+// COMMANDLINEOPTION: -notextureshader disables GL_NV_texture_shader (required for the Geforce3 water shader, NVIDIA only)
gl_textureshader = GL_CheckExtension("GL_NV_texture_shader", NULL, "-notextureshader", false);
+// COMMANDLINEOPTION: -nostenciltwoside disables GL_EXT_stencil_two_side (accelerates shadow rendering)
gl_support_stenciltwoside = GL_CheckExtension("GL_EXT_stencil_two_side", stenciltwosidefuncs, "-nostenciltwoside", false);
// we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
if (qglDrawRangeElements == NULL)
qglDrawRangeElements = qglDrawRangeElementsEXT;
+// COMMANDLINEOPTION: -noshaderobjects disables GL_ARB_shader_objects (required for vertex shader and fragment shader)
+// COMMANDLINEOPTION: -noshadinglanguage100 disables GL_ARB_shading_language_100 (required for vertex shader and fragment shader)
+// COMMANDLINEOPTION: -novertexshader disables GL_ARB_vertex_shader (currently unused, allows vertex shader effects)
+// COMMANDLINEOPTION: -nofragmentshader disables GL_ARB_fragment_shader (currently unused, allows pixel shader effects)
if ((gl_support_shader_objects = GL_CheckExtension("GL_ARB_shader_objects", shaderobjectsfuncs, "-noshaderobjects", false)))
if ((gl_support_shading_language_100 = GL_CheckExtension("GL_ARB_shading_language_100", NULL, "-noshadinglanguage100", false)))
if ((gl_support_vertex_shader = GL_CheckExtension("GL_ARB_vertex_shader", vertexshaderfuncs, "-novertexshader", false)))
{
// interpret command-line parameters
vid_commandlinecheck = false;
+// COMMANDLINEOPTION: -window performs +vid_fullscreen 0
if (COM_CheckParm("-window") || COM_CheckParm("-safe"))
Cvar_SetValueQuick(&vid_fullscreen, false);
+// COMMANDLINEOPTION: -fullscreen performs +vid_fullscreen 1
if (COM_CheckParm("-fullscreen"))
Cvar_SetValueQuick(&vid_fullscreen, true);
width = 0;
height = 0;
+// COMMANDLINEOPTION: -width <pixels> performs +vid_width <pixels> and also +vid_height <pixels*3/4> if only -width is specified (example: -width 1024 sets 1024x768 mode)
if ((i = COM_CheckParm("-width")) != 0)
width = atoi(com_argv[i+1]);
+// COMMANDLINEOPTION: -height <pixels> performs +vid_height <pixels> and also +vid_width <pixels*4/3> if only -height is specified (example: -height 768 sets 1024x768 mode)
if ((i = COM_CheckParm("-height")) != 0)
height = atoi(com_argv[i+1]);
if (width == 0)
Cvar_SetValueQuick(&vid_width, width);
if (height)
Cvar_SetValueQuick(&vid_height, height);
+// COMMANDLINEOPTION: -bpp <bits> performs +vid_bitsperpixel <bits> (example -bpp 32 or -bpp 16)
if ((i = COM_CheckParm("-bpp")) != 0)
Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
}
projects / xonotic / darkplaces.git / blobdiff