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1  /*
2   * Mesa 3-D graphics library
3   * Version:  7.1
4   *
5   * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
6   *
7   * Permission is hereby granted, free of charge, to any person obtaining a
8   * copy of this software and associated documentation files (the "Software"),
9   * to deal in the Software without restriction, including without limitation
10   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11   * and/or sell copies of the Software, and to permit persons to whom the
12   * Software is furnished to do so, subject to the following conditions:
13   *
14   * The above copyright notice and this permission notice shall be included
15   * in all copies or substantial portions of the Software.
16   *
17   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18   * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20   * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21   * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22   * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23   */
24  
25  
26  /**
27   * \file mfeatures.h
28   * Flags to enable/disable specific parts of the API.
29   */
30  
31  #ifndef FEATURES_H
32  #define FEATURES_H
33  
34  
35  #ifndef _HAVE_FULL_GL
36  #define _HAVE_FULL_GL 1
37  #endif
38  
39  /* assert that a feature is disabled and should never be used */
40  #define ASSERT_NO_FEATURE() ASSERT(0)
41  
42  /**
43   * A feature can be anything.  But most of them share certain characteristics.
44   *
45   * When a feature defines vtxfmt entries, they can be initialized and
46   * installed by
47   *   _MESA_INIT_<FEATURE>_VTXFMT
48   *   _mesa_install_<feature>_vtxfmt
49   *
50   * When a feature defines dispatch entries, they are initialized by
51   *   _mesa_init_<feature>_dispatch
52   *
53   * When a feature has states, they are initialized and freed by
54   *   _mesa_init_<feature>
55   *   _mesa_free_<feature>_data
56   *
57   * Except for states, the others compile to no-op when a feature is disabled.
58   *
59   * The GLAPIENTRYs and helper functions defined by a feature should also
60   * compile to no-op when it is disabled.  But to save typings and to catch
61   * bugs, some of them may be unavailable, or compile to ASSERT_NO_FEATURE()
62   * when the feature is disabled.
63   *
64   * A feature following the conventions may be used without knowing if it is
65   * enabled or not.
66   */
67  
68  #ifndef FEATURE_ES1
69  #define FEATURE_ES1 0
70  #endif
71  #ifndef FEATURE_ES2
72  #define FEATURE_ES2 0
73  #endif
74  
75  #define FEATURE_ES (FEATURE_ES1 || FEATURE_ES2)
76  
77  #ifndef FEATURE_GL
78  #define FEATURE_GL !FEATURE_ES
79  #endif
80  
81  #if defined(IN_DRI_DRIVER) || (FEATURE_GL + FEATURE_ES1 + FEATURE_ES2 > 1)
82  #define FEATURE_remap_table               1
83  #else
84  #define FEATURE_remap_table               0
85  #endif
86  
87  #define FEATURE_dispatch                  1
88  #define FEATURE_texgen                    1
89  #define FEATURE_userclip                  1
90  
91  #define FEATURE_accum                     FEATURE_GL
92  #define FEATURE_arrayelt                  FEATURE_GL
93  #define FEATURE_attrib_stack              FEATURE_GL
94  /* this disables vtxfmt, api_loopback, and api_noop completely */
95  #define FEATURE_beginend                  FEATURE_GL
96  #define FEATURE_colortable                FEATURE_GL
97  #define FEATURE_convolve                  FEATURE_GL
98  #define FEATURE_dlist                     (FEATURE_GL && FEATURE_arrayelt && FEATURE_beginend)
99  #define FEATURE_draw_read_buffer          FEATURE_GL
100  #define FEATURE_drawpix                   FEATURE_GL
101  #define FEATURE_evaluators                FEATURE_GL
102  #define FEATURE_feedback                  FEATURE_GL
103  #define FEATURE_pixel_transfer            FEATURE_GL
104  #define FEATURE_queryobj                  FEATURE_GL
105  #define FEATURE_rastpos                   FEATURE_GL
106  #define FEATURE_texture_fxt1              FEATURE_GL
107  #define FEATURE_texture_s3tc              FEATURE_GL
108  
109  #define FEATURE_extra_context_init        FEATURE_ES
110  #define FEATURE_point_size_array          FEATURE_ES
111  
112  #define FEATURE_es2_glsl                  FEATURE_ES2
113  
114  #define FEATURE_ARB_fragment_program      1
115  #define FEATURE_ARB_vertex_program        1
116  #define FEATURE_ARB_vertex_shader         1
117  #define FEATURE_ARB_fragment_shader       1
118  #define FEATURE_ARB_shader_objects        (FEATURE_ARB_vertex_shader || FEATURE_ARB_fragment_shader)
119  #define FEATURE_ARB_shading_language_100  FEATURE_ARB_shader_objects
120  #define FEATURE_ARB_geometry_shader4      FEATURE_ARB_shader_objects
121  
122  #define FEATURE_ARB_framebuffer_object    (FEATURE_GL && FEATURE_EXT_framebuffer_object)
123  #define FEATURE_ARB_map_buffer_range      FEATURE_GL
124  #define FEATURE_ARB_pixel_buffer_object   (FEATURE_GL && FEATURE_EXT_pixel_buffer_object)
125  #define FEATURE_ARB_sampler_objects       FEATURE_GL
126  #define FEATURE_ARB_sync                  FEATURE_GL
127  
128  #define FEATURE_EXT_framebuffer_blit      FEATURE_GL
129  #define FEATURE_EXT_framebuffer_object    1
130  #define FEATURE_EXT_pixel_buffer_object   1
131  #define FEATURE_EXT_texture_sRGB          FEATURE_GL
132  #define FEATURE_EXT_transform_feedback    FEATURE_GL
133  
134  #define FEATURE_APPLE_object_purgeable    FEATURE_GL
135  #define FEATURE_ATI_fragment_shader       FEATURE_GL
136  #define FEATURE_NV_fence                  FEATURE_GL
137  #define FEATURE_NV_fragment_program       FEATURE_GL
138  #define FEATURE_NV_vertex_program         FEATURE_GL
139  
140  #define FEATURE_OES_EGL_image             1
141  #define FEATURE_OES_draw_texture          FEATURE_ES1
142  #define FEATURE_OES_framebuffer_object    FEATURE_ES
143  #define FEATURE_OES_mapbuffer             FEATURE_ES
144  
145  #endif /* FEATURES_H */
146