268 lines
9.4 KiB
Java
268 lines
9.4 KiB
Java
/*
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* Copyright (c) 2002 Lightweight Java Game Library Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'Light Weight Java Game Library' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.lwjgl.opengl;
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import org.lwjgl.Sys;
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import org.lwjgl.Window;
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import java.lang.reflect.*;
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import java.lang.reflect.Field;
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import java.util.HashMap;
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import java.util.StringTokenizer;
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/**
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* $Id$
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*
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* A static class describing all supported GL capabilities.
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*
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* @author elias_naur <elias_naur@users.sourceforge.net>
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* @version $Revision$
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*/
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public class GLCaps {
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/*
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* Available extensions
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*/
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public static boolean GL_ARB_imaging;
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public static boolean GL_ARB_depth_texture;
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public static boolean GL_ARB_matrix_palette;
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public static boolean GL_ARB_multisample;
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public static boolean GL_ARB_multitexture;
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public static boolean GL_ARB_point_parameters;
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public static boolean GL_ARB_shadow;
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public static boolean GL_ARB_shadow_ambient;
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public static boolean GL_ARB_texture_compression;
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public static boolean GL_ARB_texture_env_add;
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public static boolean GL_ARB_texture_env_dot3;
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public static boolean GL_ARB_texture_env_combine;
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public static boolean GL_ARB_texture_env_crossbar;
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public static boolean GL_ARB_texture_border_clamp;
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public static boolean GL_ARB_texture_cube_map;
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public static boolean GL_ARB_texture_mirrored_repeat;
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public static boolean GL_ARB_transpose_matrix;
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public static boolean GL_ARB_vertex_blend;
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public static boolean GL_ARB_vertex_program;
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public static boolean GL_ARB_vertex_buffer_object;
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public static boolean GL_ARB_window_pos;
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public static boolean GL_EXT_abgr;
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public static boolean GL_EXT_bgra;
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public static boolean GL_EXT_blend_color;
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public static boolean GL_EXT_blend_function_separate;
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public static boolean GL_EXT_blend_minmax;
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public static boolean GL_EXT_blend_subtract;
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public static boolean GL_EXT_compiled_vertex_array;
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public static boolean GL_EXT_cull_vertex;
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public static boolean GL_EXT_draw_range_elements;
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public static boolean GL_EXT_fog_coord;
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public static boolean GL_EXT_light_max_exponent;
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public static boolean GL_EXT_multi_draw_arrays;
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public static boolean GL_EXT_packed_pixels;
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public static boolean GL_EXT_paletted_texture;
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public static boolean GL_EXT_point_parameters;
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public static boolean GL_EXT_rescale_normal;
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public static boolean GL_EXT_secondary_color;
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public static boolean GL_EXT_separate_specular_color;
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public static boolean GL_EXT_shadow_funcs;
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public static boolean GL_EXT_shared_texture_palette;
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public static boolean GL_EXT_stencil_two_side;
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public static boolean GL_EXT_stencil_wrap;
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public static boolean GL_EXT_texture_compression_s3tc;
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public static boolean GL_EXT_texture_env_combine;
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public static boolean GL_EXT_texture_env_dot3;
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public static boolean GL_EXT_texture_filter_anisotropic;
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public static boolean GL_EXT_texture_lod_bias;
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public static boolean GL_EXT_vertex_array;
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public static boolean GL_EXT_vertex_shader;
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public static boolean GL_EXT_vertex_weighting;
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public static boolean GL_ATI_element_array;
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public static boolean GL_ATI_envmap_bumpmap;
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public static boolean GL_ATI_fragment_shader;
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public static boolean GL_ATI_pn_triangles;
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public static boolean GL_ATI_texture_mirror_once;
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public static boolean GL_ATI_vertex_array_object;
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public static boolean GL_ATI_vertex_streams;
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public static boolean GL_ATIX_point_sprites;
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public static boolean GL_ATIX_texture_env_route;
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public static boolean GL_HP_occlusion_test;
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public static boolean GL_NV_blend_square;
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public static boolean GL_NV_copy_depth_to_color;
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public static boolean GL_NV_depth_clamp;
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public static boolean GL_NV_evaluators;
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public static boolean GL_NV_fence;
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public static boolean GL_NV_fog_distance;
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public static boolean GL_NV_light_max_exponent;
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public static boolean GL_NV_occlusion_query;
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public static boolean GL_NV_packed_depth_stencil;
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public static boolean GL_NV_point_sprite;
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public static boolean GL_NV_register_combiners;
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public static boolean GL_NV_register_combiners2;
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public static boolean GL_NV_texgen_reflection;
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public static boolean GL_NV_texture_env_combine4;
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public static boolean GL_NV_texture_rectangle;
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public static boolean GL_NV_texture_shader;
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public static boolean GL_NV_texture_shader2;
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public static boolean GL_NV_texture_shader3;
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public static boolean GL_NV_vertex_array_range;
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public static boolean GL_NV_vertex_array_range2;
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public static boolean GL_NV_vertex_program;
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public static boolean GL_NV_vertex_program1_1;
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public static boolean GL_SGIS_generate_mipmap;
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public static boolean GL_SGIX_shadow;
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public static boolean GL_SGIX_depth_texture;
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public static boolean OpenGL10;
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public static boolean OpenGL11;
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public static boolean OpenGL12;
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public static boolean OpenGL13;
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public static boolean OpenGL14;
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/*
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* Available WGL extensions
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*/
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public static boolean WGL_ARB_buffer_region;
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public static boolean WGL_ARB_extensions_string;
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public static boolean WGL_ARB_pbuffer;
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public static boolean WGL_ARB_pixel_format;
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public static boolean WGL_ARB_render_texture;
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public static boolean WGL_EXT_extensions_string;
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public static boolean WGL_EXT_swap_control;
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static {
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System.loadLibrary(Sys.getLibraryName());
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}
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private static void setExtensionFields(String exts, HashMap field_map) {
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StringTokenizer st = new StringTokenizer(exts);
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while (st.hasMoreTokens()) {
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String ext = st.nextToken();
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if(org.lwjgl.Sys.DEBUG) {
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System.out.println(ext);
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}
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Field f = (Field)field_map.get(ext);
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if (f != null) {
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try {
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f.setBoolean(GLCaps.class, true);
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} catch (IllegalAccessException e) {
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e.printStackTrace(System.err);
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}
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}
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}
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}
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/**
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* Determine which extensions are available. Use this to initialize capability fields.
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* Can only be called _after_ a GLWindow or Pbuffer has been created.
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*/
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public static void determineAvailableExtensions() {
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// Grab all the public static booleans out of this class
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Field[] fields = GLCaps.class.getDeclaredFields();
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HashMap map = new HashMap(fields.length);
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for (int i = 0; i < fields.length; i++) {
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if (Modifier.isStatic(fields[i].getModifiers())
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&& fields[i].getType() == boolean.class) {
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map.put(fields[i].getName(), fields[i]);
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// reset fields
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try {
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fields[i].setBoolean(GLCaps.class, false);
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} catch (IllegalAccessException e) {
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e.printStackTrace(System.err);
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}
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}
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}
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determineAvailableWGLExtensions(map);
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String exts = CoreGL11.glGetString(CoreGL11.GL_EXTENSIONS);
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if(org.lwjgl.Sys.DEBUG) {
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System.out.println("Available GL extensions:");
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}
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setExtensionFields(exts, map);
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// Let's see what openGL version we are too:
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String version = CoreGL11.glGetString(CoreGL11.GL_VERSION);
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int i = version.indexOf("1.");
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if (i > -1) {
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char c = version.charAt(i + 2);
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// Each case intentionally falls through!
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switch (c) {
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case '4':
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OpenGL14 = true;
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case '3':
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OpenGL13 = true;
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case '2':
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OpenGL12 = true;
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case '1':
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OpenGL11 = true;
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case '0':
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OpenGL10 = true;
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break ;
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default:
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// Unexpected character - ignore
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}
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}
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}
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private static native boolean isWGLEXTExtensionsStringAvaiable();
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private static native boolean isWGLARBExtensionsStringAvaiable();
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/**
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* Determine which WGL extensions are available
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*/
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private static void determineAvailableWGLExtensions(HashMap field_map) {
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// First we must determine if WGL_EXT_extensions_string is available
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WGL_ARB_extensions_string = isWGLARBExtensionsStringAvaiable();
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WGL_EXT_extensions_string = isWGLEXTExtensionsStringAvaiable();
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if (!WGL_EXT_extensions_string && !WGL_ARB_extensions_string)
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return;
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final String exts;
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if (WGL_ARB_extensions_string)
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exts = GL.wglGetExtensionsStringARB(Window.getCurrentWindow().getHandle());
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// Remember - this is an HWND not an HDC, which is what's required. The native
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// code on the other side of wglGetExtensionsStringARB gets the HDC from the HWND
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// behind the scenes.
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else
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exts = GL.wglGetExtensionsStringEXT();
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if (exts == null)
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return;
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if(org.lwjgl.Sys.DEBUG) {
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System.out.println("Available WGL extensions:");
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}
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setExtensionFields(exts, field_map);
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}
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}
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