168    ctx->Extensions.dummy_false = false;  in initialize_context_to_defaults()
169    ctx->Extensions.dummy_true = true;  in initialize_context_to_defaults()
170    ctx->Extensions.ARB_compute_shader = true;  in initialize_context_to_defaults()
171    ctx->Extensions.ARB_compute_variable_group_size = true;  in initialize_context_to_defaults()
172    ctx->Extensions.ARB_conservative_depth = true;  in initialize_context_to_defaults()
173    ctx->Extensions.ARB_draw_instanced = true;  in initialize_context_to_defaults()
174    ctx->Extensions.ARB_ES2_compatibility = true;  in initialize_context_to_defaults()
175    ctx->Extensions.ARB_ES3_compatibility = true;  in initialize_context_to_defaults()
176    ctx->Extensions.ARB_explicit_attrib_location = true;  in initialize_context_to_defaults()
177    ctx->Extensions.ARB_fragment_coord_conventions = true;  in initialize_context_to_defaults()
178    ctx->Extensions.ARB_fragment_layer_viewport = true;  in initialize_context_to_defaults()
179    ctx->Extensions.ARB_gpu_shader5 = true;  in initialize_context_to_defaults()
180    ctx->Extensions.ARB_gpu_shader_fp64 = true;  in initialize_context_to_defaults()
181    ctx->Extensions.ARB_sample_shading = true;  in initialize_context_to_defaults()
182    ctx->Extensions.ARB_shader_bit_encoding = true;  in initialize_context_to_defaults()
183    ctx->Extensions.ARB_shader_draw_parameters = true;  in initialize_context_to_defaults()
184    ctx->Extensions.ARB_shader_stencil_export = true;  in initialize_context_to_defaults()
185    ctx->Extensions.ARB_shader_subroutine = true;  in initialize_context_to_defaults()
186    ctx->Extensions.ARB_shader_texture_lod = true;  in initialize_context_to_defaults()
187    ctx->Extensions.ARB_shading_language_420pack = true;  in initialize_context_to_defaults()
188    ctx->Extensions.ARB_shading_language_packing = true;  in initialize_context_to_defaults()
189    ctx->Extensions.ARB_tessellation_shader = true;  in initialize_context_to_defaults()
190    ctx->Extensions.ARB_texture_cube_map_array = true;  in initialize_context_to_defaults()
191    ctx->Extensions.ARB_texture_gather = true;  in initialize_context_to_defaults()
192    ctx->Extensions.ARB_texture_multisample = true;  in initialize_context_to_defaults()
193    ctx->Extensions.ARB_texture_query_levels = true;  in initialize_context_to_defaults()
194    ctx->Extensions.ARB_texture_query_lod = true;  in initialize_context_to_defaults()
195    ctx->Extensions.ARB_uniform_buffer_object = true;  in initialize_context_to_defaults()
196    ctx->Extensions.ARB_viewport_array = true;  in initialize_context_to_defaults()
197    ctx->Extensions.ARB_cull_distance = true;  in initialize_context_to_defaults()
199    ctx->Extensions.OES_EGL_image_external = true;  in initialize_context_to_defaults()
200    ctx->Extensions.OES_standard_derivatives = true;  in initialize_context_to_defaults()
202    ctx->Extensions.EXT_shader_integer_mix = true;  in initialize_context_to_defaults()
203    ctx->Extensions.EXT_texture_array = true;  in initialize_context_to_defaults()
205    ctx->Extensions.MESA_shader_integer_functions = true;  in initialize_context_to_defaults()
207    ctx->Extensions.NV_texture_rectangle = true;  in initialize_context_to_defaults()