Merge pull request #1878 from Cloudef/incoming

Add GLEW 1.10.0 emulation

6 files changed, 1029 insertions, 5 deletions

diff --git a/AUTHORS b/AUTHORS
index cc5dfb56..d47b3199 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -117,3 +117,4 @@ a license to everyone to use it as detailed in LICENSE.)
 * Andre Weissflog <floooh@gmail.com>
 * Alexandre Perrot <alexandre.perrot@gmail.com>
 * Emerson José Silveira da Costa <emerson.costa@gmail.com>
+* Jari Vetoniemi <mailroxas@gmail.com>
diff --git a/src/library_glew.js b/src/library_glew.js
new file mode 100644
index 00000000..f7da5f82
--- /dev/null
+++ b/src/library_glew.js
@@ -0,0 +1,135 @@
+/*******************************************************************************
+ * EMSCRIPTEN GLEW 1.10.0 emulation
+ *
+ * What it does:
+ * - Stubs init function.
+ * - GL Extensions support.
+ *
+ * Optional:
+ * - isLinaroFork variable to enable glew-es specific error strings.
+ *   This is enabled by default, but should be disabled when upstream glew conflicts.
+ *
+ * Authors:
+ * - Jari Vetoniemi <mailroxas@gmail.com>
+ ******************************************************************************/
+
+var LibraryGLEW = {
+  $GLEW__deps: ['glGetString'],
+  $GLEW: {
+    isLinaroFork: 1,
+    extensions: null,
+
+    error: {
+      0:null, // GLEW_OK || GLEW_NO_ERROR
+      1:null, // GLEW_ERROR_NO_GL_VERSION
+      2:null, // GLEW_ERROR_GL_VERSION_10_ONLY
+      3:null, // GLEW_ERROR_GLX_VERSION_11_ONLY
+
+      4:null, // GLEW_ERROR_NOT_GLES_VERSION
+      5:null, // GLEW_ERROR_GLES_VERSION
+      6:null, // GLEW_ERROR_NO_EGL_VERSION
+      7:null, // GLEW_ERROR_EGL_VERSION_10_ONLY
+
+      8:null, // Unknown error
+    },
+
+    version: {
+      1:null, // GLEW_VERSION
+      2:null, // GLEW_VERSION_MAJOR
+      3:null, // GLEW_VERSION_MINOR
+      4:null, // GLEW_VERSION_MICRO
+    },
+
+    errorStringConstantFromCode: function(error) {
+      if (GLEW.isLinaroFork) {
+        switch (error) {
+          case 4:return "OpenGL ES lib expected, found OpenGL lib"; // GLEW_ERROR_NOT_GLES_VERSION
+          case 5:return "OpenGL lib expected, found OpenGL ES lib"; // GLEW_ERROR_GLES_VERSION
+          case 6:return "Missing EGL version"; // GLEW_ERROR_NO_EGL_VERSION
+          case 7:return "EGL 1.1 and up are supported"; // GLEW_ERROR_EGL_VERSION_10_ONLY
+          default:break;
+        }
+      }
+
+      switch (error) {
+        case 0:return "No error"; // GLEW_OK || GLEW_NO_ERROR
+        case 1:return "Missing GL version"; // GLEW_ERROR_NO_GL_VERSION
+        case 2:return "GL 1.1 and up are supported"; // GLEW_ERROR_GL_VERSION_10_ONLY
+        case 3:return "GLX 1.2 and up are supported"; // GLEW_ERROR_GLX_VERSION_11_ONLY
+        default:return null;
+      }
+    },
+
+    errorString: function(error) {
+      if (!GLEW.error[error]) {
+        var string = GLEW.errorStringConstantFromCode(error);
+        if (!string) {
+          string = "Unknown error";
+          error = 8; // prevent array from growing more than this
+        }
+        GLEW.error[error] = allocate(intArrayFromString(string), 'i8', ALLOC_NORMAL);
+      }
+      return GLEW.error[error];
+    },
+
+    versionStringConstantFromCode: function(name) {
+      switch (name) {
+        case 1:return "1.10.0"; // GLEW_VERSION
+        case 2:return "1"; // GLEW_VERSION_MAJOR
+        case 3:return "10"; // GLEW_VERSION_MINOR
+        case 4:return "0"; // GLEW_VERSION_MICRO
+        default:return null;
+      }
+    },
+
+    versionString: function(name) {
+      if (!GLEW.version[name]) {
+        var string = GLEW.versionStringConstantFromCode(name);
+        if (!string)
+          return 0;
+        GLEW.version[name] = allocate(intArrayFromString(string), 'i8', ALLOC_NORMAL);
+      }
+      return GLEW.version[name];
+    },
+
+    extensionIsSupported: function(name) {
+      if (!GLEW.extensions) {
+        GLEW.extensions = Pointer_stringify(_glGetString(0x1F03)).split(' ');
+      }
+
+      if (GLEW.extensions.indexOf(name) != -1)
+        return 1;
+
+      // extensions from GLEmulations do not come unprefixed
+      // so, try with prefix
+      return (GLEW.extensions.indexOf("GL_" + name) != -1);
+    },
+  },
+
+  glewInit: function() { return 0; },
+
+  glewIsSupported: function(name) {
+    var exts = Pointer_stringify(name).split(' ');
+    for (i in exts) {
+      if (!GLEW.extensionIsSupported(exts[i]))
+        return 0;
+    }
+    return 1;
+  },
+
+  glewGetExtension: function(name) {
+    return GLEW.extensionIsSupported(Pointer_stringify(name));
+  },
+
+  glewGetErrorString: function(error) {
+    return GLEW.errorString(error);
+  },
+
+  glewGetString: function(name) {
+    return GLEW.versionString(name);
+  },
+
+};
+
+autoAddDeps(LibraryGLEW, '$GLEW');
+mergeInto(LibraryManager.library, LibraryGLEW);
diff --git a/src/modules.js b/src/modules.js
index c0b98f6f..ad467ba7 100644
--- a/src/modules.js
+++ b/src/modules.js
@@ -424,7 +424,7 @@ var LibraryManager = {
   load: function() {
     if (this.library) return;
 
-    var libraries = ['library.js', 'library_path.js', 'library_fs.js', 'library_idbfs.js', 'library_memfs.js', 'library_nodefs.js', 'library_sockfs.js', 'library_tty.js', 'library_browser.js', 'library_sdl.js', 'library_gl.js', 'library_glut.js', 'library_xlib.js', 'library_egl.js', 'library_gc.js', 'library_jansson.js', 'library_openal.js', 'library_glfw.js', 'library_uuid.js'].concat(additionalLibraries);
+    var libraries = ['library.js', 'library_path.js', 'library_fs.js', 'library_idbfs.js', 'library_memfs.js', 'library_nodefs.js', 'library_sockfs.js', 'library_tty.js', 'library_browser.js', 'library_sdl.js', 'library_gl.js', 'library_glut.js', 'library_xlib.js', 'library_egl.js', 'library_gc.js', 'library_jansson.js', 'library_openal.js', 'library_glfw.js', 'library_uuid.js', 'library_glew.js'].concat(additionalLibraries);
     for (var i = 0; i < libraries.length; i++) {
       eval(processMacros(preprocess(read(libraries[i]))));
     }
diff --git a/system/include/GL/glew.h b/system/include/GL/glew.h
index 324c6b29..efd90d6f 100644
--- a/system/include/GL/glew.h
+++ b/system/include/GL/glew.h
@@ -1,6 +1,839 @@
+/* GLEW 1.10.0 emulation include header
+ * this include file provides neccessary stuff to function with most GLEW programs.
+ * library_glew.js is also provided to support extensions and error strings
+ *
+ * This file is based on GLEW (1.10.0) and linaro fork generated include files.
+ *
+ * What it lacks:
+ * - Some constants and function declarations that are in GLEW 1.10.0 might be missing.
+ * - The real glew-es fork also includes normal GL constants and function pointers, this does not.
+ *
+ * Authors:
+ * - Jari Vetoniemi <mailroxas@gmail.com>
+ */
 
-// Basically do nothing, just use existing symbols
+#ifndef __glew_h__
+#define __glew_h__
+#define __GLEW_H__
 
-#include "SDL/SDL_opengl.h"
-#define glewInit() {}
+/* linaro fork (glew-es) support */
+#ifndef GLEW_USE_LIB_ES11
+#  define __GLEW_VERSION_ES11 0
+#else
+#  define __GLEW_VERSION_ES11 1
+#  include <SDL/SDL_opengles.h>
+#endif
 
+#ifndef GLEW_USE_LIB_ES20
+#  define __GLEW_VERSION_ES20 0
+#else
+#  define __GLEW_VERSION_ES20 1
+#  include <SDL/SDL_opengles2.h>
+#endif
+
+#if !__GLEW_VERSION_ES11 && !__GLEW_VERSION_ES20
+#  define __GLEW_NOT_ES 1
+#  include <SDL/SDL_opengl.h>
+#else
+#  define __GLEW_NOT_ES 0
+#endif
+
+/* report us up to GLEW_VERSION_2_1, when no GLEW_USE_LIB_ESXX is specified.
+ * in source, it's possible to #undef and redefine these constants, for
+ * better OpenGL path suitable for emscripten. */
+#define GLEW_VERSION_1_1 __GLEW_NOT_ES
+#define GLEW_VERSION_1_2 __GLEW_NOT_ES
+#define GLEW_VERSION_1_2_1 __GLEW_NOT_ES
+#define GLEW_VERSION_1_3 __GLEW_NOT_ES
+#define GLEW_VERSION_1_4 __GLEW_NOT_ES
+#define GLEW_VERSION_1_5 __GLEW_NOT_ES
+#define GLEW_VERSION_2_0 __GLEW_NOT_ES
+#define GLEW_VERSION_2_1 __GLEW_NOT_ES
+#define GLEW_VERSION_3_0 0
+#define GLEW_VERSION_3_1 0
+#define GLEW_VERSION_3_2 0
+#define GLEW_VERSION_3_3 0
+#define GLEW_VERSION_4_0 0
+#define GLEW_VERSION_4_1 0
+#define GLEW_VERSION_4_2 0
+#define GLEW_VERSION_4_3 0
+#define GLEW_VERSION_4_4 0
+
+/* linaro-fork (glew-es) version constants */
+#define GLEW_ES_VERSION_1_0 __GLEW_VERSION_ES11
+#define GLEW_ES_VERSION_2_0 __GLEW_VERSION_ES20
+
+/* string codes */
+#define GLEW_VERSION 1
+#define GLEW_VERSION_MAJOR 2
+#define GLEW_VERSION_MINOR 3
+#define GLEW_VERSION_MICRO 4
+
+/* error codes */
+#define GLEW_OK 0
+#define GLEW_NO_ERROR 0
+#define GLEW_ERROR_NO_GL_VERSION 1  /* missing GL version */
+#define GLEW_ERROR_GL_VERSION_10_ONLY 2  /* Need at least OpenGL 1.1 */
+#define GLEW_ERROR_GLX_VERSION_11_ONLY 3  /* Need at least GLX 1.2 */
+
+/* linaro-fork (glew-es) error codes */
+#define GLEW_ERROR_NOT_GLES_VERSION 4   /* Need to be OpenGL ES version */
+#define GLEW_ERROR_GLES_VERSION 5   /* Need to be desktop OpenGL version */
+#define GLEW_ERROR_NO_EGL_VERSION 6  /* missing EGL version */
+#define GLEW_ERROR_EGL_VERSION_10_ONLY 7 /* need at least EGL 1.1 */
+
+/* maps to glewGetExtension */
+#define GLEW_GET_VAR(x) glewGetExtension(#x)
+
+/* support GLEW constants, wrangling is done by SDL_opengl.h */
+#define GLEW_3DFX_multisample GLEW_GET_VAR(GL_3DFX_multisample)
+#define GLEW_3DFX_tbuffer GLEW_GET_VAR(GL_3DFX_tbuffer)
+#define GLEW_3DFX_texture_compression_FXT1 GLEW_GET_VAR(GL_3DFX_texture_compression_FXT1)
+#define GLEW_AMD_blend_minmax_factor GLEW_GET_VAR(GL_AMD_blend_minmax_factor)
+#define GLEW_AMD_conservative_depth GLEW_GET_VAR(GL_AMD_conservative_depth)
+#define GLEW_AMD_debug_output GLEW_GET_VAR(GL_AMD_debug_output)
+#define GLEW_AMD_depth_clamp_separate GLEW_GET_VAR(GL_AMD_depth_clamp_separate)
+#define GLEW_AMD_draw_buffers_blend GLEW_GET_VAR(GL_AMD_draw_buffers_blend)
+#define GLEW_AMD_interleaved_elements GLEW_GET_VAR(GL_AMD_interleaved_elements)
+#define GLEW_AMD_multi_draw_indirect GLEW_GET_VAR(GL_AMD_multi_draw_indirect)
+#define GLEW_AMD_name_gen_delete GLEW_GET_VAR(GL_AMD_name_gen_delete)
+#define GLEW_AMD_performance_monitor GLEW_GET_VAR(GL_AMD_performance_monitor)
+#define GLEW_AMD_pinned_memory GLEW_GET_VAR(GL_AMD_pinned_memory)
+#define GLEW_AMD_query_buffer_object GLEW_GET_VAR(GL_AMD_query_buffer_object)
+#define GLEW_AMD_sample_positions GLEW_GET_VAR(GL_AMD_sample_positions)
+#define GLEW_AMD_seamless_cubemap_per_texture GLEW_GET_VAR(GL_AMD_seamless_cubemap_per_texture)
+#define GLEW_AMD_shader_atomic_counter_ops GLEW_GET_VAR(GL_AMD_shader_atomic_counter_ops)
+#define GLEW_AMD_shader_stencil_export GLEW_GET_VAR(GL_AMD_shader_stencil_export)
+#define GLEW_AMD_shader_trinary_minmax GLEW_GET_VAR(GL_AMD_shader_trinary_minmax)
+#define GLEW_AMD_sparse_texture GLEW_GET_VAR(GL_AMD_sparse_texture)
+#define GLEW_AMD_stencil_operation_extended GLEW_GET_VAR(GL_AMD_stencil_operation_extended)
+#define GLEW_AMD_texture_texture4 GLEW_GET_VAR(GL_AMD_texture_texture4)
+#define GLEW_AMD_transform_feedback3_lines_triangles GLEW_GET_VAR(GL_AMD_transform_feedback3_lines_triangles)
+#define GLEW_AMD_vertex_shader_layer GLEW_GET_VAR(GL_AMD_vertex_shader_layer)
+#define GLEW_AMD_vertex_shader_tessellator GLEW_GET_VAR(GL_AMD_vertex_shader_tessellator)
+#define GLEW_AMD_vertex_shader_viewport_index GLEW_GET_VAR(GL_AMD_vertex_shader_viewport_index)
+#define GLEW_ANGLE_depth_texture GLEW_GET_VAR(GL_ANGLE_depth_texture)
+#define GLEW_ANGLE_framebuffer_blit GLEW_GET_VAR(GL_ANGLE_framebuffer_blit)
+#define GLEW_ANGLE_framebuffer_multisample GLEW_GET_VAR(GL_ANGLE_framebuffer_multisample)
+#define GLEW_ANGLE_instanced_arrays GLEW_GET_VAR(GL_ANGLE_instanced_arrays)
+#define GLEW_ANGLE_pack_reverse_row_order GLEW_GET_VAR(GL_ANGLE_pack_reverse_row_order)
+#define GLEW_ANGLE_program_binary GLEW_GET_VAR(GL_ANGLE_program_binary)
+#define GLEW_ANGLE_texture_compression_dxt1 GLEW_GET_VAR(GL_ANGLE_texture_compression_dxt1)
+#define GLEW_ANGLE_texture_compression_dxt3 GLEW_GET_VAR(GL_ANGLE_texture_compression_dxt3)
+#define GLEW_ANGLE_texture_compression_dxt5 GLEW_GET_VAR(GL_ANGLE_texture_compression_dxt5)
+#define GLEW_ANGLE_texture_usage GLEW_GET_VAR(GL_ANGLE_texture_usage)
+#define GLEW_ANGLE_timer_query GLEW_GET_VAR(GL_ANGLE_timer_query)
+#define GLEW_ANGLE_translated_shader_source GLEW_GET_VAR(GL_ANGLE_translated_shader_source)
+#define GLEW_APPLE_aux_depth_stencil GLEW_GET_VAR(GL_APPLE_aux_depth_stencil)
+#define GLEW_APPLE_client_storage GLEW_GET_VAR(GL_APPLE_client_storage)
+#define GLEW_APPLE_element_array GLEW_GET_VAR(GL_APPLE_element_array)
+#define GLEW_APPLE_fence GLEW_GET_VAR(GL_APPLE_fence)
+#define GLEW_APPLE_float_pixels GLEW_GET_VAR(GL_APPLE_float_pixels)
+#define GLEW_APPLE_flush_buffer_range GLEW_GET_VAR(GL_APPLE_flush_buffer_range)
+#define GLEW_APPLE_object_purgeable GLEW_GET_VAR(GL_APPLE_object_purgeable)
+#define GLEW_APPLE_pixel_buffer GLEW_GET_VAR(GL_APPLE_pixel_buffer)
+#define GLEW_APPLE_rgb_422 GLEW_GET_VAR(GL_APPLE_rgb_422)
+#define GLEW_APPLE_row_bytes GLEW_GET_VAR(GL_APPLE_row_bytes)
+#define GLEW_APPLE_specular_vector GLEW_GET_VAR(GL_APPLE_specular_vector)
+#define GLEW_APPLE_texture_range GLEW_GET_VAR(GL_APPLE_texture_range)
+#define GLEW_APPLE_transform_hint GLEW_GET_VAR(GL_APPLE_transform_hint)
+#define GLEW_APPLE_vertex_array_object GLEW_GET_VAR(GL_APPLE_vertex_array_object)
+#define GLEW_APPLE_vertex_array_range GLEW_GET_VAR(GL_APPLE_vertex_array_range)
+#define GLEW_APPLE_vertex_program_evaluators GLEW_GET_VAR(GL_APPLE_vertex_program_evaluators)
+#define GLEW_APPLE_ycbcr_422 GLEW_GET_VAR(GL_APPLE_ycbcr_422)
+#define GLEW_ARB_ES2_compatibility GLEW_GET_VAR(GL_ARB_ES2_compatibility)
+#define GLEW_ARB_ES3_compatibility GLEW_GET_VAR(GL_ARB_ES3_compatibility)
+#define GLEW_ARB_arrays_of_arrays GLEW_GET_VAR(GL_ARB_arrays_of_arrays)
+#define GLEW_ARB_base_instance GLEW_GET_VAR(GL_ARB_base_instance)
+#define GLEW_ARB_bindless_texture GLEW_GET_VAR(GL_ARB_bindless_texture)
+#define GLEW_ARB_blend_func_extended GLEW_GET_VAR(GL_ARB_blend_func_extended)
+#define GLEW_ARB_buffer_storage GLEW_GET_VAR(GL_ARB_buffer_storage)
+#define GLEW_ARB_cl_event GLEW_GET_VAR(GL_ARB_cl_event)
+#define GLEW_ARB_clear_buffer_object GLEW_GET_VAR(GL_ARB_clear_buffer_object)
+#define GLEW_ARB_clear_texture GLEW_GET_VAR(GL_ARB_clear_texture)
+#define GLEW_ARB_color_buffer_float GLEW_GET_VAR(GL_ARB_color_buffer_float)
+#define GLEW_ARB_compatibility GLEW_GET_VAR(GL_ARB_compatibility)
+#define GLEW_ARB_compressed_texture_pixel_storage GLEW_GET_VAR(GL_ARB_compressed_texture_pixel_storage)
+#define GLEW_ARB_compute_shader GLEW_GET_VAR(GL_ARB_compute_shader)
+#define GLEW_ARB_compute_variable_group_size GLEW_GET_VAR(GL_ARB_compute_variable_group_size)
+#define GLEW_ARB_conservative_depth GLEW_GET_VAR(GL_ARB_conservative_depth)
+#define GLEW_ARB_copy_buffer GLEW_GET_VAR(GL_ARB_copy_buffer)
+#define GLEW_ARB_copy_image GLEW_GET_VAR(GL_ARB_copy_image)
+#define GLEW_ARB_debug_output GLEW_GET_VAR(GL_ARB_debug_output)
+#define GLEW_ARB_depth_buffer_float GLEW_GET_VAR(GL_ARB_depth_buffer_float)
+#define GLEW_ARB_depth_clamp GLEW_GET_VAR(GL_ARB_depth_clamp)
+#define GLEW_ARB_depth_texture GLEW_GET_VAR(GL_ARB_depth_texture)
+#define GLEW_ARB_draw_buffers GLEW_GET_VAR(GL_ARB_draw_buffers)
+#define GLEW_ARB_draw_buffers_blend GLEW_GET_VAR(GL_ARB_draw_buffers_blend)
+#define GLEW_ARB_draw_elements_base_vertex GLEW_GET_VAR(GL_ARB_draw_elements_base_vertex)
+#define GLEW_ARB_draw_indirect GLEW_GET_VAR(GL_ARB_draw_indirect)
+#define GLEW_ARB_draw_instanced GLEW_GET_VAR(GL_ARB_draw_instanced)
+#define GLEW_ARB_enhanced_layouts GLEW_GET_VAR(GL_ARB_enhanced_layouts)
+#define GLEW_ARB_explicit_attrib_location GLEW_GET_VAR(GL_ARB_explicit_attrib_location)
+#define GLEW_ARB_explicit_uniform_location GLEW_GET_VAR(GL_ARB_explicit_uniform_location)
+#define GLEW_ARB_fragment_coord_conventions GLEW_GET_VAR(GL_ARB_fragment_coord_conventions)
+#define GLEW_ARB_fragment_layer_viewport GLEW_GET_VAR(GL_ARB_fragment_layer_viewport)
+#define GLEW_ARB_fragment_program GLEW_GET_VAR(GL_ARB_fragment_program)
+#define GLEW_ARB_fragment_program_shadow GLEW_GET_VAR(GL_ARB_fragment_program_shadow)
+#define GLEW_ARB_fragment_shader GLEW_GET_VAR(GL_ARB_fragment_shader)
+#define GLEW_ARB_framebuffer_no_attachments GLEW_GET_VAR(GL_ARB_framebuffer_no_attachments)
+#define GLEW_ARB_framebuffer_object GLEW_GET_VAR(GL_ARB_framebuffer_object)
+#define GLEW_ARB_framebuffer_sRGB GLEW_GET_VAR(GL_ARB_framebuffer_sRGB)
+#define GLEW_ARB_geometry_shader4 GLEW_GET_VAR(GL_ARB_geometry_shader4)
+#define GLEW_ARB_get_program_binary GLEW_GET_VAR(GL_ARB_get_program_binary)
+#define GLEW_ARB_gpu_shader5 GLEW_GET_VAR(GL_ARB_gpu_shader5)
+#define GLEW_ARB_gpu_shader_fp64 GLEW_GET_VAR(GL_ARB_gpu_shader_fp64)
+#define GLEW_ARB_half_float_pixel GLEW_GET_VAR(GL_ARB_half_float_pixel)
+#define GLEW_ARB_half_float_vertex GLEW_GET_VAR(GL_ARB_half_float_vertex)
+#define GLEW_ARB_imaging GLEW_GET_VAR(GL_ARB_imaging)
+#define GLEW_ARB_indirect_parameters GLEW_GET_VAR(GL_ARB_indirect_parameters)
+#define GLEW_ARB_instanced_arrays GLEW_GET_VAR(GL_ARB_instanced_arrays)
+#define GLEW_ARB_internalformat_query GLEW_GET_VAR(GL_ARB_internalformat_query)
+#define GLEW_ARB_internalformat_query2 GLEW_GET_VAR(GL_ARB_internalformat_query2)
+#define GLEW_ARB_invalidate_subdata GLEW_GET_VAR(GL_ARB_invalidate_subdata)
+#define GLEW_ARB_map_buffer_alignment GLEW_GET_VAR(GL_ARB_map_buffer_alignment)
+#define GLEW_ARB_map_buffer_range GLEW_GET_VAR(GL_ARB_map_buffer_range)
+#define GLEW_ARB_matrix_palette GLEW_GET_VAR(GL_ARB_matrix_palette)
+#define GLEW_ARB_multi_bind GLEW_GET_VAR(GL_ARB_multi_bind)
+#define GLEW_ARB_multi_draw_indirect GLEW_GET_VAR(GL_ARB_multi_draw_indirect)
+#define GLEW_ARB_multisample GLEW_GET_VAR(GL_ARB_multisample)
+#define GLEW_ARB_multitexture GLEW_GET_VAR(GL_ARB_multitexture)
+#define GLEW_ARB_occlusion_query GLEW_GET_VAR(GL_ARB_occlusion_query)
+#define GLEW_ARB_occlusion_query2 GLEW_GET_VAR(GL_ARB_occlusion_query2)
+#define GLEW_ARB_pixel_buffer_object GLEW_GET_VAR(GL_ARB_pixel_buffer_object)
+#define GLEW_ARB_point_parameters GLEW_GET_VAR(GL_ARB_point_parameters)
+#define GLEW_ARB_point_sprite GLEW_GET_VAR(GL_ARB_point_sprite)
+#define GLEW_ARB_program_interface_query GLEW_GET_VAR(GL_ARB_program_interface_query)
+#define GLEW_ARB_provoking_vertex GLEW_GET_VAR(GL_ARB_provoking_vertex)
+#define GLEW_ARB_query_buffer_object GLEW_GET_VAR(GL_ARB_query_buffer_object)
+#define GLEW_ARB_robust_buffer_access_behavior GLEW_GET_VAR(GL_ARB_robust_buffer_access_behavior)
+#define GLEW_ARB_robustness GLEW_GET_VAR(GL_ARB_robustness)
+#define GLEW_ARB_robustness_application_isolation GLEW_GET_VAR(GL_ARB_robustness_application_isolation)
+#define GLEW_ARB_robustness_share_group_isolation GLEW_GET_VAR(GL_ARB_robustness_share_group_isolation)
+#define GLEW_ARB_sample_shading GLEW_GET_VAR(GL_ARB_sample_shading)
+#define GLEW_ARB_sampler_objects GLEW_GET_VAR(GL_ARB_sampler_objects)
+#define GLEW_ARB_seamless_cube_map GLEW_GET_VAR(GL_ARB_seamless_cube_map)
+#define GLEW_ARB_seamless_cubemap_per_texture GLEW_GET_VAR(GL_ARB_seamless_cubemap_per_texture)
+#define GLEW_ARB_separate_shader_objects GLEW_GET_VAR(GL_ARB_separate_shader_objects)
+#define GLEW_ARB_shader_atomic_counters GLEW_GET_VAR(GL_ARB_shader_atomic_counters)
+#define GLEW_ARB_shader_bit_encoding GLEW_GET_VAR(GL_ARB_shader_bit_encoding)
+#define GLEW_ARB_shader_draw_parameters GLEW_GET_VAR(GL_ARB_shader_draw_parameters)
+#define GLEW_ARB_shader_group_vote GLEW_GET_VAR(GL_ARB_shader_group_vote)
+#define GLEW_ARB_shader_image_load_store GLEW_GET_VAR(GL_ARB_shader_image_load_store)
+#define GLEW_ARB_shader_image_size GLEW_GET_VAR(GL_ARB_shader_image_size)
+#define GLEW_ARB_shader_objects GLEW_GET_VAR(GL_ARB_shader_objects)
+#define GLEW_ARB_shader_precision GLEW_GET_VAR(GL_ARB_shader_precision)
+#define GLEW_ARB_shader_stencil_export GLEW_GET_VAR(GL_ARB_shader_stencil_export)
+#define GLEW_ARB_shader_storage_buffer_object GLEW_GET_VAR(GL_ARB_shader_storage_buffer_object)
+#define GLEW_ARB_shader_subroutine GLEW_GET_VAR(GL_ARB_shader_subroutine)
+#define GLEW_ARB_shader_texture_lod GLEW_GET_VAR(GL_ARB_shader_texture_lod)
+#define GLEW_ARB_shading_language_100 GLEW_GET_VAR(GL_ARB_shading_language_100)
+#define GLEW_ARB_shading_language_420pack GLEW_GET_VAR(GL_ARB_shading_language_420pack)
+#define GLEW_ARB_shading_language_include GLEW_GET_VAR(GL_ARB_shading_language_include)
+#define GLEW_ARB_shading_language_packing GLEW_GET_VAR(GL_ARB_shading_language_packing)
+#define GLEW_ARB_shadow GLEW_GET_VAR(GL_ARB_shadow)
+#define GLEW_ARB_shadow_ambient GLEW_GET_VAR(GL_ARB_shadow_ambient)
+#define GLEW_ARB_sparse_texture GLEW_GET_VAR(GL_ARB_sparse_texture)
+#define GLEW_ARB_stencil_texturing GLEW_GET_VAR(GL_ARB_stencil_texturing)
+#define GLEW_ARB_sync GLEW_GET_VAR(GL_ARB_sync)
+#define GLEW_ARB_tessellation_shader GLEW_GET_VAR(GL_ARB_tessellation_shader)
+#define GLEW_ARB_texture_border_clamp GLEW_GET_VAR(GL_ARB_texture_border_clamp)
+#define GLEW_ARB_texture_buffer_object GLEW_GET_VAR(GL_ARB_texture_buffer_object)
+#define GLEW_ARB_texture_buffer_object_rgb32 GLEW_GET_VAR(GL_ARB_texture_buffer_object_rgb32)
+#define GLEW_ARB_texture_buffer_range GLEW_GET_VAR(GL_ARB_texture_buffer_range)
+#define GLEW_ARB_texture_compression GLEW_GET_VAR(GL_ARB_texture_compression)
+#define GLEW_ARB_texture_compression_bptc GLEW_GET_VAR(GL_ARB_texture_compression_bptc)
+#define GLEW_ARB_texture_compression_rgtc GLEW_GET_VAR(GL_ARB_texture_compression_rgtc)
+#define GLEW_ARB_texture_cube_map GLEW_GET_VAR(GL_ARB_texture_cube_map)
+#define GLEW_ARB_texture_cube_map_array GLEW_GET_VAR(GL_ARB_texture_cube_map_array)
+#define GLEW_ARB_texture_env_add GLEW_GET_VAR(GL_ARB_texture_env_add)
+#define GLEW_ARB_texture_env_combine GLEW_GET_VAR(GL_ARB_texture_env_combine)
+#define GLEW_ARB_texture_env_crossbar GLEW_GET_VAR(GL_ARB_texture_env_crossbar)
+#define GLEW_ARB_texture_env_dot3 GLEW_GET_VAR(GL_ARB_texture_env_dot3)
+#define GLEW_ARB_texture_float GLEW_GET_VAR(GL_ARB_texture_float)
+#define GLEW_ARB_texture_gather GLEW_GET_VAR(GL_ARB_texture_gather)
+#define GLEW_ARB_texture_mirror_clamp_to_edge GLEW_GET_VAR(GL_ARB_texture_mirror_clamp_to_edge)
+#define GLEW_ARB_texture_mirrored_repeat GLEW_GET_VAR(GL_ARB_texture_mirrored_repeat)
+#define GLEW_ARB_texture_multisample GLEW_GET_VAR(GL_ARB_texture_multisample)
+#define GLEW_ARB_texture_non_power_of_two GLEW_GET_VAR(GL_ARB_texture_non_power_of_two)
+#define GLEW_ARB_texture_query_levels GLEW_GET_VAR(GL_ARB_texture_query_levels)
+#define GLEW_ARB_texture_query_lod GLEW_GET_VAR(GL_ARB_texture_query_lod)
+#define GLEW_ARB_texture_rectangle GLEW_GET_VAR(GL_ARB_texture_rectangle)
+#define GLEW_ARB_texture_rg GLEW_GET_VAR(GL_ARB_texture_rg)
+#define GLEW_ARB_texture_rgb10_a2ui GLEW_GET_VAR(GL_ARB_texture_rgb10_a2ui)
+#define GLEW_ARB_texture_stencil8 GLEW_GET_VAR(GL_ARB_texture_stencil8)
+#define GLEW_ARB_texture_storage GLEW_GET_VAR(GL_ARB_texture_storage)
+#define GLEW_ARB_texture_storage_multisample GLEW_GET_VAR(GL_ARB_texture_storage_multisample)
+#define GLEW_ARB_texture_swizzle GLEW_GET_VAR(GL_ARB_texture_swizzle)
+#define GLEW_ARB_texture_view GLEW_GET_VAR(GL_ARB_texture_view)
+#define GLEW_ARB_timer_query GLEW_GET_VAR(GL_ARB_timer_query)
+#define GLEW_ARB_transform_feedback2 GLEW_GET_VAR(GL_ARB_transform_feedback2)
+#define GLEW_ARB_transform_feedback3 GLEW_GET_VAR(GL_ARB_transform_feedback3)
+#define GLEW_ARB_transform_feedback_instanced GLEW_GET_VAR(GL_ARB_transform_feedback_instanced)
+#define GLEW_ARB_transpose_matrix GLEW_GET_VAR(GL_ARB_transpose_matrix)
+#define GLEW_ARB_uniform_buffer_object GLEW_GET_VAR(GL_ARB_uniform_buffer_object)
+#define GLEW_ARB_vertex_array_bgra GLEW_GET_VAR(GL_ARB_vertex_array_bgra)
+#define GLEW_ARB_vertex_array_object GLEW_GET_VAR(GL_ARB_vertex_array_object)
+#define GLEW_ARB_vertex_attrib_64bit GLEW_GET_VAR(GL_ARB_vertex_attrib_64bit)
+#define GLEW_ARB_vertex_attrib_binding GLEW_GET_VAR(GL_ARB_vertex_attrib_binding)
+#define GLEW_ARB_vertex_blend GLEW_GET_VAR(GL_ARB_vertex_blend)
+#define GLEW_ARB_vertex_buffer_object GLEW_GET_VAR(GL_ARB_vertex_buffer_object)
+#define GLEW_ARB_vertex_program GLEW_GET_VAR(GL_ARB_vertex_program)
+#define GLEW_ARB_vertex_shader GLEW_GET_VAR(GL_ARB_vertex_shader)
+#define GLEW_ARB_vertex_type_10f_11f_11f_rev GLEW_GET_VAR(GL_ARB_vertex_type_10f_11f_11f_rev)
+#define GLEW_ARB_vertex_type_2_10_10_10_rev GLEW_GET_VAR(GL_ARB_vertex_type_2_10_10_10_rev)
+#define GLEW_ARB_viewport_array GLEW_GET_VAR(GL_ARB_viewport_array)
+#define GLEW_ARB_window_pos GLEW_GET_VAR(GL_ARB_window_pos)
+#define GLEW_ATIX_point_sprites GLEW_GET_VAR(GL_ATIX_point_sprites)
+#define GLEW_ATIX_texture_env_combine3 GLEW_GET_VAR(GL_ATIX_texture_env_combine3)
+#define GLEW_ATIX_texture_env_route GLEW_GET_VAR(GL_ATIX_texture_env_route)
+#define GLEW_ATIX_vertex_shader_output_point_size GLEW_GET_VAR(GL_ATIX_vertex_shader_output_point_size)
+#define GLEW_ATI_draw_buffers GLEW_GET_VAR(GL_ATI_draw_buffers)
+#define GLEW_ATI_element_array GLEW_GET_VAR(GL_ATI_element_array)
+#define GLEW_ATI_envmap_bumpmap GLEW_GET_VAR(GL_ATI_envmap_bumpmap)
+#define GLEW_ATI_fragment_shader GLEW_GET_VAR(GL_ATI_fragment_shader)
+#define GLEW_ATI_map_object_buffer GLEW_GET_VAR(GL_ATI_map_object_buffer)
+#define GLEW_ATI_meminfo GLEW_GET_VAR(GL_ATI_meminfo)
+#define GLEW_ATI_pn_triangles GLEW_GET_VAR(GL_ATI_pn_triangles)
+#define GLEW_ATI_separate_stencil GLEW_GET_VAR(GL_ATI_separate_stencil)
+#define GLEW_ATI_shader_texture_lod GLEW_GET_VAR(GL_ATI_shader_texture_lod)
+#define GLEW_ATI_text_fragment_shader GLEW_GET_VAR(GL_ATI_text_fragment_shader)
+#define GLEW_ATI_texture_compression_3dc GLEW_GET_VAR(GL_ATI_texture_compression_3dc)
+#define GLEW_ATI_texture_env_combine3 GLEW_GET_VAR(GL_ATI_texture_env_combine3)
+#define GLEW_ATI_texture_float GLEW_GET_VAR(GL_ATI_texture_float)
+#define GLEW_ATI_texture_mirror_once GLEW_GET_VAR(GL_ATI_texture_mirror_once)
+#define GLEW_ATI_vertex_array_object GLEW_GET_VAR(GL_ATI_vertex_array_object)
+#define GLEW_ATI_vertex_attrib_array_object GLEW_GET_VAR(GL_ATI_vertex_attrib_array_object)
+#define GLEW_ATI_vertex_streams GLEW_GET_VAR(GL_ATI_vertex_streams)
+#define GLEW_EXT_422_pixels GLEW_GET_VAR(GL_EXT_422_pixels)
+#define GLEW_EXT_Cg_shader GLEW_GET_VAR(GL_EXT_Cg_shader)
+#define GLEW_EXT_abgr GLEW_GET_VAR(GL_EXT_abgr)
+#define GLEW_EXT_bgra GLEW_GET_VAR(GL_EXT_bgra)
+#define GLEW_EXT_bindable_uniform GLEW_GET_VAR(GL_EXT_bindable_uniform)
+#define GLEW_EXT_blend_color GLEW_GET_VAR(GL_EXT_blend_color)
+#define GLEW_EXT_blend_equation_separate GLEW_GET_VAR(GL_EXT_blend_equation_separate)
+#define GLEW_EXT_blend_func_separate GLEW_GET_VAR(GL_EXT_blend_func_separate)
+#define GLEW_EXT_blend_logic_op GLEW_GET_VAR(GL_EXT_blend_logic_op)
+#define GLEW_EXT_blend_minmax GLEW_GET_VAR(GL_EXT_blend_minmax)
+#define GLEW_EXT_blend_subtract GLEW_GET_VAR(GL_EXT_blend_subtract)
+#define GLEW_EXT_clip_volume_hint GLEW_GET_VAR(GL_EXT_clip_volume_hint)
+#define GLEW_EXT_cmyka GLEW_GET_VAR(GL_EXT_cmyka)
+#define GLEW_EXT_color_subtable GLEW_GET_VAR(GL_EXT_color_subtable)
+#define GLEW_EXT_compiled_vertex_array GLEW_GET_VAR(GL_EXT_compiled_vertex_array)
+#define GLEW_EXT_convolution GLEW_GET_VAR(GL_EXT_convolution)
+#define GLEW_EXT_coordinate_frame GLEW_GET_VAR(GL_EXT_coordinate_frame)
+#define GLEW_EXT_copy_texture GLEW_GET_VAR(GL_EXT_copy_texture)
+#define GLEW_EXT_cull_vertex GLEW_GET_VAR(GL_EXT_cull_vertex)
+#define GLEW_EXT_debug_label GLEW_GET_VAR(GL_EXT_debug_label)
+#define GLEW_EXT_debug_marker GLEW_GET_VAR(GL_EXT_debug_marker)
+#define GLEW_EXT_depth_bounds_test GLEW_GET_VAR(GL_EXT_depth_bounds_test)
+#define GLEW_EXT_direct_state_access GLEW_GET_VAR(GL_EXT_direct_state_access)
+#define GLEW_EXT_draw_buffers2 GLEW_GET_VAR(GL_EXT_draw_buffers2)
+#define GLEW_EXT_draw_instanced GLEW_GET_VAR(GL_EXT_draw_instanced)
+#define GLEW_EXT_draw_range_elements GLEW_GET_VAR(GL_EXT_draw_range_elements)
+#define GLEW_EXT_fog_coord GLEW_GET_VAR(GL_EXT_fog_coord)
+#define GLEW_EXT_fragment_lighting GLEW_GET_VAR(GL_EXT_fragment_lighting)
+#define GLEW_EXT_framebuffer_blit GLEW_GET_VAR(GL_EXT_framebuffer_blit)
+#define GLEW_EXT_framebuffer_multisample GLEW_GET_VAR(GL_EXT_framebuffer_multisample)
+#define GLEW_EXT_framebuffer_multisample_blit_scaled GLEW_GET_VAR(GL_EXT_framebuffer_multisample_blit_scaled)
+#define GLEW_EXT_framebuffer_object GLEW_GET_VAR(GL_EXT_framebuffer_object)
+#define GLEW_EXT_framebuffer_sRGB GLEW_GET_VAR(GL_EXT_framebuffer_sRGB)
+#define GLEW_EXT_geometry_shader4 GLEW_GET_VAR(GL_EXT_geometry_shader4)
+#define GLEW_EXT_gpu_program_parameters GLEW_GET_VAR(GL_EXT_gpu_program_parameters)
+#define GLEW_EXT_gpu_shader4 GLEW_GET_VAR(GL_EXT_gpu_shader4)
+#define GLEW_EXT_histogram GLEW_GET_VAR(GL_EXT_histogram)
+#define GLEW_EXT_index_array_formats GLEW_GET_VAR(GL_EXT_index_array_formats)
+#define GLEW_EXT_index_func GLEW_GET_VAR(GL_EXT_index_func)
+#define GLEW_EXT_index_material GLEW_GET_VAR(GL_EXT_index_material)
+#define GLEW_EXT_index_texture GLEW_GET_VAR(GL_EXT_index_texture)
+#define GLEW_EXT_light_texture GLEW_GET_VAR(GL_EXT_light_texture)
+#define GLEW_EXT_misc_attribute GLEW_GET_VAR(GL_EXT_misc_attribute)
+#define GLEW_EXT_multi_draw_arrays GLEW_GET_VAR(GL_EXT_multi_draw_arrays)
+#define GLEW_EXT_multisample GLEW_GET_VAR(GL_EXT_multisample)
+#define GLEW_EXT_packed_depth_stencil GLEW_GET_VAR(GL_EXT_packed_depth_stencil)
+#define GLEW_EXT_packed_float GLEW_GET_VAR(GL_EXT_packed_float)
+#define GLEW_EXT_packed_pixels GLEW_GET_VAR(GL_EXT_packed_pixels)
+#define GLEW_EXT_paletted_texture GLEW_GET_VAR(GL_EXT_paletted_texture)
+#define GLEW_EXT_pixel_buffer_object GLEW_GET_VAR(GL_EXT_pixel_buffer_object)
+#define GLEW_EXT_pixel_transform GLEW_GET_VAR(GL_EXT_pixel_transform)
+#define GLEW_EXT_pixel_transform_color_table GLEW_GET_VAR(GL_EXT_pixel_transform_color_table)
+#define GLEW_EXT_point_parameters GLEW_GET_VAR(GL_EXT_point_parameters)
+#define GLEW_EXT_polygon_offset GLEW_GET_VAR(GL_EXT_polygon_offset)
+#define GLEW_EXT_provoking_vertex GLEW_GET_VAR(GL_EXT_provoking_vertex)
+#define GLEW_EXT_rescale_normal GLEW_GET_VAR(GL_EXT_rescale_normal)
+#define GLEW_EXT_scene_marker GLEW_GET_VAR(GL_EXT_scene_marker)
+#define GLEW_EXT_secondary_color GLEW_GET_VAR(GL_EXT_secondary_color)
+#define GLEW_EXT_separate_shader_objects GLEW_GET_VAR(GL_EXT_separate_shader_objects)
+#define GLEW_EXT_separate_specular_color GLEW_GET_VAR(GL_EXT_separate_specular_color)
+#define GLEW_EXT_shader_image_load_store GLEW_GET_VAR(GL_EXT_shader_image_load_store)
+#define GLEW_EXT_shader_integer_mix GLEW_GET_VAR(GL_EXT_shader_integer_mix)
+#define GLEW_EXT_shadow_funcs GLEW_GET_VAR(GL_EXT_shadow_funcs)
+#define GLEW_EXT_shared_texture_palette GLEW_GET_VAR(GL_EXT_shared_texture_palette)
+#define GLEW_EXT_stencil_clear_tag GLEW_GET_VAR(GL_EXT_stencil_clear_tag)
+#define GLEW_EXT_stencil_two_side GLEW_GET_VAR(GL_EXT_stencil_two_side)
+#define GLEW_EXT_stencil_wrap GLEW_GET_VAR(GL_EXT_stencil_wrap)
+#define GLEW_EXT_subtexture GLEW_GET_VAR(GL_EXT_subtexture)
+#define GLEW_EXT_texture GLEW_GET_VAR(GL_EXT_texture)
+#define GLEW_EXT_texture3D GLEW_GET_VAR(GL_EXT_texture3D)
+#define GLEW_EXT_texture_array GLEW_GET_VAR(GL_EXT_texture_array)
+#define GLEW_EXT_texture_buffer_object GLEW_GET_VAR(GL_EXT_texture_buffer_object)
+#define GLEW_EXT_texture_compression_dxt1 GLEW_GET_VAR(GL_EXT_texture_compression_dxt1)
+#define GLEW_EXT_texture_compression_latc GLEW_GET_VAR(GL_EXT_texture_compression_latc)
+#define GLEW_EXT_texture_compression_rgtc GLEW_GET_VAR(GL_EXT_texture_compression_rgtc)
+#define GLEW_EXT_texture_compression_s3tc GLEW_GET_VAR(GL_EXT_texture_compression_s3tc)
+#define GLEW_EXT_texture_cube_map GLEW_GET_VAR(GL_EXT_texture_cube_map)
+#define GLEW_EXT_texture_edge_clamp GLEW_GET_VAR(GL_EXT_texture_edge_clamp)
+#define GLEW_EXT_texture_env GLEW_GET_VAR(GL_EXT_texture_env)
+#define GLEW_EXT_texture_env_add GLEW_GET_VAR(GL_EXT_texture_env_add)
+#define GLEW_EXT_texture_env_combine GLEW_GET_VAR(GL_EXT_texture_env_combine)
+#define GLEW_EXT_texture_env_dot3 GLEW_GET_VAR(GL_EXT_texture_env_dot3)
+#define GLEW_EXT_texture_filter_anisotropic GLEW_GET_VAR(GL_EXT_texture_filter_anisotropic)
+#define GLEW_EXT_texture_integer GLEW_GET_VAR(GL_EXT_texture_integer)
+#define GLEW_EXT_texture_lod_bias GLEW_GET_VAR(GL_EXT_texture_lod_bias)
+#define GLEW_EXT_texture_mirror_clamp GLEW_GET_VAR(GL_EXT_texture_mirror_clamp)
+#define GLEW_EXT_texture_object GLEW_GET_VAR(GL_EXT_texture_object)
+#define GLEW_EXT_texture_perturb_normal GLEW_GET_VAR(GL_EXT_texture_perturb_normal)
+#define GLEW_EXT_texture_rectangle GLEW_GET_VAR(GL_EXT_texture_rectangle)
+#define GLEW_EXT_texture_sRGB GLEW_GET_VAR(GL_EXT_texture_sRGB)
+#define GLEW_EXT_texture_sRGB_decode GLEW_GET_VAR(GL_EXT_texture_sRGB_decode)
+#define GLEW_EXT_texture_shared_exponent GLEW_GET_VAR(GL_EXT_texture_shared_exponent)
+#define GLEW_EXT_texture_snorm GLEW_GET_VAR(GL_EXT_texture_snorm)
+#define GLEW_EXT_texture_swizzle GLEW_GET_VAR(GL_EXT_texture_swizzle)
+#define GLEW_EXT_timer_query GLEW_GET_VAR(GL_EXT_timer_query)
+#define GLEW_EXT_transform_feedback GLEW_GET_VAR(GL_EXT_transform_feedback)
+#define GLEW_EXT_vertex_array GLEW_GET_VAR(GL_EXT_vertex_array)
+#define GLEW_EXT_vertex_array_bgra GLEW_GET_VAR(GL_EXT_vertex_array_bgra)
+#define GLEW_EXT_vertex_attrib_64bit GLEW_GET_VAR(GL_EXT_vertex_attrib_64bit)
+#define GLEW_EXT_vertex_shader GLEW_GET_VAR(GL_EXT_vertex_shader)
+#define GLEW_EXT_vertex_weighting GLEW_GET_VAR(GL_EXT_vertex_weighting)
+#define GLEW_EXT_x11_sync_object GLEW_GET_VAR(GL_EXT_x11_sync_object)
+#define GLEW_GREMEDY_frame_terminator GLEW_GET_VAR(GL_GREMEDY_frame_terminator)
+#define GLEW_GREMEDY_string_marker GLEW_GET_VAR(GL_GREMEDY_string_marker)
+#define GLEW_HP_convolution_border_modes GLEW_GET_VAR(GL_HP_convolution_border_modes)
+#define GLEW_HP_image_transform GLEW_GET_VAR(GL_HP_image_transform)
+#define GLEW_HP_occlusion_test GLEW_GET_VAR(GL_HP_occlusion_test)
+#define GLEW_HP_texture_lighting GLEW_GET_VAR(GL_HP_texture_lighting)
+#define GLEW_IBM_cull_vertex GLEW_GET_VAR(GL_IBM_cull_vertex)
+#define GLEW_IBM_multimode_draw_arrays GLEW_GET_VAR(GL_IBM_multimode_draw_arrays)
+#define GLEW_IBM_rasterpos_clip GLEW_GET_VAR(GL_IBM_rasterpos_clip)
+#define GLEW_IBM_static_data GLEW_GET_VAR(GL_IBM_static_data)
+#define GLEW_IBM_texture_mirrored_repeat GLEW_GET_VAR(GL_IBM_texture_mirrored_repeat)
+#define GLEW_IBM_vertex_array_lists GLEW_GET_VAR(GL_IBM_vertex_array_lists)
+#define GLEW_INGR_color_clamp GLEW_GET_VAR(GL_INGR_color_clamp)
+#define GLEW_INGR_interlace_read GLEW_GET_VAR(GL_INGR_interlace_read)
+#define GLEW_INTEL_fragment_shader_ordering GLEW_GET_VAR(GL_INTEL_fragment_shader_ordering)
+#define GLEW_INTEL_map_texture GLEW_GET_VAR(GL_INTEL_map_texture)
+#define GLEW_INTEL_parallel_arrays GLEW_GET_VAR(GL_INTEL_parallel_arrays)
+#define GLEW_INTEL_texture_scissor GLEW_GET_VAR(GL_INTEL_texture_scissor)
+#define GLEW_KHR_debug GLEW_GET_VAR(GL_KHR_debug)
+#define GLEW_KHR_texture_compression_astc_hdr GLEW_GET_VAR(GL_KHR_texture_compression_astc_hdr)
+#define GLEW_KHR_texture_compression_astc_ldr GLEW_GET_VAR(GL_KHR_texture_compression_astc_ldr)
+#define GLEW_KTX_buffer_region GLEW_GET_VAR(GL_KTX_buffer_region)
+#define GLEW_MESAX_texture_stack GLEW_GET_VAR(GL_MESAX_texture_stack)
+#define GLEW_MESA_pack_invert GLEW_GET_VAR(GL_MESA_pack_invert)
+#define GLEW_MESA_resize_buffers GLEW_GET_VAR(GL_MESA_resize_buffers)
+#define GLEW_MESA_window_pos GLEW_GET_VAR(GL_MESA_window_pos)
+#define GLEW_MESA_ycbcr_texture GLEW_GET_VAR(GL_MESA_ycbcr_texture)
+#define GLEW_NVX_conditional_render GLEW_GET_VAR(GL_NVX_conditional_render)
+#define GLEW_NVX_gpu_memory_info GLEW_GET_VAR(GL_NVX_gpu_memory_info)
+#define GLEW_NV_bindless_multi_draw_indirect GLEW_GET_VAR(GL_NV_bindless_multi_draw_indirect)
+#define GLEW_NV_bindless_texture GLEW_GET_VAR(GL_NV_bindless_texture)
+#define GLEW_NV_blend_equation_advanced GLEW_GET_VAR(GL_NV_blend_equation_advanced)
+#define GLEW_NV_blend_equation_advanced_coherent GLEW_GET_VAR(GL_NV_blend_equation_advanced_coherent)
+#define GLEW_NV_blend_square GLEW_GET_VAR(GL_NV_blend_square)
+#define GLEW_NV_compute_program5 GLEW_GET_VAR(GL_NV_compute_program5)
+#define GLEW_NV_conditional_render GLEW_GET_VAR(GL_NV_conditional_render)
+#define GLEW_NV_copy_depth_to_color GLEW_GET_VAR(GL_NV_copy_depth_to_color)
+#define GLEW_NV_copy_image GLEW_GET_VAR(GL_NV_copy_image)
+#define GLEW_NV_deep_texture3D GLEW_GET_VAR(GL_NV_deep_texture3D)
+#define GLEW_NV_depth_buffer_float GLEW_GET_VAR(GL_NV_depth_buffer_float)
+#define GLEW_NV_depth_clamp GLEW_GET_VAR(GL_NV_depth_clamp)
+#define GLEW_NV_depth_range_unclamped GLEW_GET_VAR(GL_NV_depth_range_unclamped)
+#define GLEW_NV_draw_texture GLEW_GET_VAR(GL_NV_draw_texture)
+#define GLEW_NV_evaluators GLEW_GET_VAR(GL_NV_evaluators)
+#define GLEW_NV_explicit_multisample GLEW_GET_VAR(GL_NV_explicit_multisample)
+#define GLEW_NV_fence GLEW_GET_VAR(GL_NV_fence)
+#define GLEW_NV_float_buffer GLEW_GET_VAR(GL_NV_float_buffer)
+#define GLEW_NV_fog_distance GLEW_GET_VAR(GL_NV_fog_distance)
+#define GLEW_NV_fragment_program GLEW_GET_VAR(GL_NV_fragment_program)
+#define GLEW_NV_fragment_program2 GLEW_GET_VAR(GL_NV_fragment_program2)
+#define GLEW_NV_fragment_program4 GLEW_GET_VAR(GL_NV_fragment_program4)
+#define GLEW_NV_fragment_program_option GLEW_GET_VAR(GL_NV_fragment_program_option)
+#define GLEW_NV_framebuffer_multisample_coverage GLEW_GET_VAR(GL_NV_framebuffer_multisample_coverage)
+#define GLEW_NV_geometry_program4 GLEW_GET_VAR(GL_NV_geometry_program4)
+#define GLEW_NV_geometry_shader4 GLEW_GET_VAR(GL_NV_geometry_shader4)
+#define GLEW_NV_gpu_program4 GLEW_GET_VAR(GL_NV_gpu_program4)
+#define GLEW_NV_gpu_program5 GLEW_GET_VAR(GL_NV_gpu_program5)
+#define GLEW_NV_gpu_program5_mem_extended GLEW_GET_VAR(GL_NV_gpu_program5_mem_extended)
+#define GLEW_NV_gpu_program_fp64 GLEW_GET_VAR(GL_NV_gpu_program_fp64)
+#define GLEW_NV_gpu_shader5 GLEW_GET_VAR(GL_NV_gpu_shader5)
+#define GLEW_NV_half_float GLEW_GET_VAR(GL_NV_half_float)
+#define GLEW_NV_light_max_exponent GLEW_GET_VAR(GL_NV_light_max_exponent)
+#define GLEW_NV_multisample_coverage GLEW_GET_VAR(GL_NV_multisample_coverage)
+#define GLEW_NV_multisample_filter_hint GLEW_GET_VAR(GL_NV_multisample_filter_hint)
+#define GLEW_NV_occlusion_query GLEW_GET_VAR(GL_NV_occlusion_query)
+#define GLEW_NV_packed_depth_stencil GLEW_GET_VAR(GL_NV_packed_depth_stencil)
+#define GLEW_NV_parameter_buffer_object GLEW_GET_VAR(GL_NV_parameter_buffer_object)
+#define GLEW_NV_parameter_buffer_object2 GLEW_GET_VAR(GL_NV_parameter_buffer_object2)
+#define GLEW_NV_path_rendering GLEW_GET_VAR(GL_NV_path_rendering)
+#define GLEW_NV_pixel_data_range GLEW_GET_VAR(GL_NV_pixel_data_range)
+#define GLEW_NV_point_sprite GLEW_GET_VAR(GL_NV_point_sprite)
+#define GLEW_NV_present_video GLEW_GET_VAR(GL_NV_present_video)
+#define GLEW_NV_primitive_restart GLEW_GET_VAR(GL_NV_primitive_restart)
+#define GLEW_NV_register_combiners GLEW_GET_VAR(GL_NV_register_combiners)
+#define GLEW_NV_register_combiners2 GLEW_GET_VAR(GL_NV_register_combiners2)
+#define GLEW_NV_shader_atomic_counters GLEW_GET_VAR(GL_NV_shader_atomic_counters)
+#define GLEW_NV_shader_atomic_float GLEW_GET_VAR(GL_NV_shader_atomic_float)
+#define GLEW_NV_shader_buffer_load GLEW_GET_VAR(GL_NV_shader_buffer_load)
+#define GLEW_NV_shader_storage_buffer_object GLEW_GET_VAR(GL_NV_shader_storage_buffer_object)
+#define GLEW_NV_tessellation_program5 GLEW_GET_VAR(GL_NV_tessellation_program5)
+#define GLEW_NV_texgen_emboss GLEW_GET_VAR(GL_NV_texgen_emboss)
+#define GLEW_NV_texgen_reflection GLEW_GET_VAR(GL_NV_texgen_reflection)
+#define GLEW_NV_texture_barrier GLEW_GET_VAR(GL_NV_texture_barrier)
+#define GLEW_NV_texture_compression_vtc GLEW_GET_VAR(GL_NV_texture_compression_vtc)
+#define GLEW_NV_texture_env_combine4 GLEW_GET_VAR(GL_NV_texture_env_combine4)
+#define GLEW_NV_texture_expand_normal GLEW_GET_VAR(GL_NV_texture_expand_normal)
+#define GLEW_NV_texture_multisample GLEW_GET_VAR(GL_NV_texture_multisample)
+#define GLEW_NV_texture_rectangle GLEW_GET_VAR(GL_NV_texture_rectangle)
+#define GLEW_NV_texture_shader GLEW_GET_VAR(GL_NV_texture_shader)
+#define GLEW_NV_texture_shader2 GLEW_GET_VAR(GL_NV_texture_shader2)
+#define GLEW_NV_texture_shader3 GLEW_GET_VAR(GL_NV_texture_shader3)
+#define GLEW_NV_transform_feedback GLEW_GET_VAR(GL_NV_transform_feedback)
+#define GLEW_NV_transform_feedback2 GLEW_GET_VAR(GL_NV_transform_feedback2)
+#define GLEW_NV_vdpau_interop GLEW_GET_VAR(GL_NV_vdpau_interop)
+#define GLEW_NV_vertex_array_range GLEW_GET_VAR(GL_NV_vertex_array_range)
+#define GLEW_NV_vertex_array_range2 GLEW_GET_VAR(GL_NV_vertex_array_range2)
+#define GLEW_NV_vertex_attrib_integer_64bit GLEW_GET_VAR(GL_NV_vertex_attrib_integer_64bit)
+#define GLEW_NV_vertex_buffer_unified_memory GLEW_GET_VAR(GL_NV_vertex_buffer_unified_memory)
+#define GLEW_NV_vertex_program GLEW_GET_VAR(GL_NV_vertex_program)
+#define GLEW_NV_vertex_program1_1 GLEW_GET_VAR(GL_NV_vertex_program1_1)
+#define GLEW_NV_vertex_program2 GLEW_GET_VAR(GL_NV_vertex_program2)
+#define GLEW_NV_vertex_program2_option GLEW_GET_VAR(GL_NV_vertex_program2_option)
+#define GLEW_NV_vertex_program3 GLEW_GET_VAR(GL_NV_vertex_program3)
+#define GLEW_NV_vertex_program4 GLEW_GET_VAR(GL_NV_vertex_program4)
+#define GLEW_NV_video_capture GLEW_GET_VAR(GL_NV_video_capture)
+#define GLEW_OES_byte_coordinates GLEW_GET_VAR(GL_OES_byte_coordinates)
+#define GLEW_OES_compressed_paletted_texture GLEW_GET_VAR(GL_OES_compressed_paletted_texture)
+#define GLEW_OES_read_format GLEW_GET_VAR(GL_OES_read_format)
+#define GLEW_OES_single_precision GLEW_GET_VAR(GL_OES_single_precision)
+#define GLEW_OML_interlace GLEW_GET_VAR(GL_OML_interlace)
+#define GLEW_OML_resample GLEW_GET_VAR(GL_OML_resample)
+#define GLEW_OML_subsamp