1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "intel_chipset.h"
29 #include "intel_context.h"
30 #include "intel_extensions.h"
34 #define need_GL_ARB_draw_elements_base_vertex
35 #define need_GL_ARB_framebuffer_object
36 #define need_GL_ARB_map_buffer_range
37 #define need_GL_ARB_occlusion_query
38 #define need_GL_ARB_point_parameters
39 #define need_GL_ARB_shader_objects
40 #define need_GL_ARB_sync
41 #define need_GL_ARB_vertex_array_object
42 #define need_GL_ARB_vertex_program
43 #define need_GL_ARB_vertex_shader
44 #define need_GL_ARB_window_pos
45 #define need_GL_EXT_blend_color
46 #define need_GL_EXT_blend_equation_separate
47 #define need_GL_EXT_blend_func_separate
48 #define need_GL_EXT_blend_minmax
49 #define need_GL_EXT_draw_buffers2
50 #define need_GL_EXT_fog_coord
51 #define need_GL_EXT_framebuffer_blit
52 #define need_GL_EXT_framebuffer_multisample
53 #define need_GL_EXT_framebuffer_object
54 #define need_GL_EXT_gpu_program_parameters
55 #define need_GL_EXT_point_parameters
56 #define need_GL_EXT_provoking_vertex
57 #define need_GL_EXT_secondary_color
58 #define need_GL_EXT_stencil_two_side
59 #define need_GL_EXT_timer_query
60 #define need_GL_APPLE_vertex_array_object
61 #define need_GL_APPLE_object_purgeable
62 #define need_GL_ATI_separate_stencil
63 #define need_GL_ATI_envmap_bumpmap
64 #define need_GL_NV_point_sprite
65 #define need_GL_NV_vertex_program
66 #define need_GL_OES_EGL_image
67 #define need_GL_VERSION_2_0
68 #define need_GL_VERSION_2_1
70 #include "main/remap_helper.h"
74 * Extension strings exported by the intel driver.
76 * Extensions supported by all chips supported by i830_dri, i915_dri, or
79 static const struct dri_extension card_extensions
[] = {
80 { "GL_ARB_draw_elements_base_vertex", GL_ARB_draw_elements_base_vertex_functions
},
81 { "GL_ARB_explicit_attrib_location", NULL
},
82 { "GL_ARB_half_float_pixel", NULL
},
83 { "GL_ARB_map_buffer_range", GL_ARB_map_buffer_range_functions
},
84 { "GL_ARB_multitexture", NULL
},
85 { "GL_ARB_pixel_buffer_object", NULL
},
86 { "GL_ARB_point_parameters", GL_ARB_point_parameters_functions
},
87 { "GL_ARB_point_sprite", NULL
},
88 { "GL_ARB_shader_objects", GL_ARB_shader_objects_functions
},
89 { "GL_ARB_shading_language_100", GL_VERSION_2_0_functions
},
90 { "GL_ARB_sync", GL_ARB_sync_functions
},
91 { "GL_ARB_texture_border_clamp", NULL
},
92 { "GL_ARB_texture_cube_map", NULL
},
93 { "GL_ARB_texture_env_add", NULL
},
94 { "GL_ARB_texture_env_combine", NULL
},
95 { "GL_ARB_texture_env_crossbar", NULL
},
96 { "GL_ARB_texture_env_dot3", NULL
},
97 { "GL_ARB_texture_mirrored_repeat", NULL
},
98 { "GL_ARB_texture_rectangle", NULL
},
99 { "GL_ARB_vertex_array_object", GL_ARB_vertex_array_object_functions
},
100 { "GL_ARB_vertex_program", GL_ARB_vertex_program_functions
},
101 { "GL_ARB_vertex_shader", GL_ARB_vertex_shader_functions
},
102 { "GL_ARB_window_pos", GL_ARB_window_pos_functions
},
103 { "GL_EXT_blend_color", GL_EXT_blend_color_functions
},
104 { "GL_EXT_blend_equation_separate", GL_EXT_blend_equation_separate_functions
},
105 { "GL_EXT_blend_func_separate", GL_EXT_blend_func_separate_functions
},
106 { "GL_EXT_blend_minmax", GL_EXT_blend_minmax_functions
},
107 { "GL_EXT_blend_logic_op", NULL
},
108 { "GL_EXT_blend_subtract", NULL
},
109 { "GL_EXT_framebuffer_blit", GL_EXT_framebuffer_blit_functions
},
110 { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions
},
111 { "GL_EXT_framebuffer_multisample", GL_EXT_framebuffer_multisample_functions
},
112 { "GL_EXT_fog_coord", GL_EXT_fog_coord_functions
},
113 { "GL_EXT_gpu_program_parameters", GL_EXT_gpu_program_parameters_functions
},
114 { "GL_EXT_packed_depth_stencil", NULL
},
115 { "GL_EXT_provoking_vertex", GL_EXT_provoking_vertex_functions
},
116 { "GL_EXT_secondary_color", GL_EXT_secondary_color_functions
},
117 { "GL_EXT_stencil_wrap", NULL
},
118 { "GL_EXT_texture_edge_clamp", NULL
},
119 { "GL_EXT_texture_env_combine", NULL
},
120 { "GL_EXT_texture_env_dot3", NULL
},
121 { "GL_EXT_texture_filter_anisotropic", NULL
},
122 { "GL_EXT_texture_lod_bias", NULL
},
123 { "GL_3DFX_texture_compression_FXT1", NULL
},
124 { "GL_APPLE_client_storage", NULL
},
125 { "GL_APPLE_object_purgeable", GL_APPLE_object_purgeable_functions
},
126 { "GL_APPLE_vertex_array_object", GL_APPLE_vertex_array_object_functions
},
127 { "GL_MESA_pack_invert", NULL
},
128 { "GL_MESA_ycbcr_texture", NULL
},
129 { "GL_NV_blend_square", NULL
},
130 { "GL_NV_vertex_program", GL_NV_vertex_program_functions
},
131 { "GL_NV_vertex_program1_1", NULL
},
132 #if FEATURE_OES_EGL_image
133 { "GL_OES_EGL_image", GL_OES_EGL_image_functions
},
139 /** i915 / i945-only extensions */
140 static const struct dri_extension i915_extensions
[] = {
141 { "GL_ARB_depth_texture", NULL
},
142 { "GL_ARB_fragment_program", NULL
},
143 { "GL_ARB_shadow", NULL
},
144 { "GL_ARB_texture_non_power_of_two", NULL
},
145 { "GL_ATI_separate_stencil", GL_ATI_separate_stencil_functions
},
146 { "GL_ATI_texture_env_combine3", NULL
},
147 { "GL_EXT_shadow_funcs", NULL
},
148 { "GL_EXT_stencil_two_side", GL_EXT_stencil_two_side_functions
},
149 { "GL_NV_texture_env_combine4", NULL
},
154 /** i965-only extensions */
155 static const struct dri_extension brw_extensions
[] = {
156 { "GL_ARB_depth_clamp", NULL
},
157 { "GL_ARB_depth_texture", NULL
},
158 { "GL_ARB_fragment_coord_conventions", NULL
},
159 { "GL_ARB_fragment_program", NULL
},
160 { "GL_ARB_fragment_program_shadow", NULL
},
161 { "GL_ARB_fragment_shader", NULL
},
162 { "GL_ARB_framebuffer_object", GL_ARB_framebuffer_object_functions
},
163 { "GL_ARB_half_float_vertex", NULL
},
164 { "GL_ARB_occlusion_query", GL_ARB_occlusion_query_functions
},
165 { "GL_ARB_point_sprite", NULL
},
166 { "GL_ARB_seamless_cube_map", NULL
},
167 { "GL_ARB_shadow", NULL
},
168 { "GL_MESA_texture_signed_rgba", NULL
},
169 { "GL_ARB_texture_non_power_of_two", NULL
},
170 { "GL_ARB_texture_rg", NULL
},
171 { "GL_EXT_draw_buffers2", GL_EXT_draw_buffers2_functions
},
172 { "GL_EXT_shadow_funcs", NULL
},
173 { "GL_EXT_stencil_two_side", GL_EXT_stencil_two_side_functions
},
174 { "GL_EXT_texture_sRGB", NULL
},
175 { "GL_EXT_texture_swizzle", NULL
},
176 { "GL_EXT_vertex_array_bgra", NULL
},
177 { "GL_ATI_envmap_bumpmap", GL_ATI_envmap_bumpmap_functions
},
178 { "GL_ATI_separate_stencil", GL_ATI_separate_stencil_functions
},
179 { "GL_ATI_texture_env_combine3", NULL
},
180 { "GL_NV_texture_env_combine4", NULL
},
184 static const struct dri_extension ironlake_extensions
[] = {
185 { "GL_EXT_timer_query", GL_EXT_timer_query_functions
},
188 static const struct dri_extension arb_oq_extensions
[] = {
189 { "GL_ARB_occlusion_query", GL_ARB_occlusion_query_functions
},
194 static const struct dri_extension fragment_shader_extensions
[] = {
195 { "GL_ARB_fragment_shader", NULL
},
200 * \brief Get GLSL version from the environment.
202 * If the environment variable INTEL_GLSL_VERSION is set, convert its value
203 * to an integer and return it. Otherwise, return the default version, 120.
208 const char * s
= getenv("INTEL_GLSL_VERSION");
212 return (GLuint
) atoi(s
);
216 * Initializes potential list of extensions if ctx == NULL, or actually enables
217 * extensions for a context.
220 intelInitExtensions(struct gl_context
*ctx
)
222 struct intel_context
*intel
= intel_context(ctx
);
224 driInitExtensions(ctx
, card_extensions
, GL_FALSE
);
226 _mesa_map_function_array(GL_VERSION_2_1_functions
);
228 ctx
->Const
.GLSLVersion
= get_glsl_version();
231 driInitExtensions(ctx
, ironlake_extensions
, GL_FALSE
);
234 driInitExtensions(ctx
, brw_extensions
, GL_FALSE
);
236 if (intel
->gen
== 3) {
237 driInitExtensions(ctx
, i915_extensions
, GL_FALSE
);
239 if (driQueryOptionb(&intel
->optionCache
, "fragment_shader"))
240 driInitExtensions(ctx
, fragment_shader_extensions
, GL_FALSE
);
242 if (driQueryOptionb(&intel
->optionCache
, "stub_occlusion_query"))
243 driInitExtensions(ctx
, arb_oq_extensions
, GL_FALSE
);