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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              0
  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      0
  115. #define FEATURE_ARB_vertex_program        0
  116. #define FEATURE_ARB_vertex_shader         FEATURE_GL
  117. #define FEATURE_ARB_fragment_shader       0
  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    0
  123. #define FEATURE_ARB_map_buffer_range      0
  124. #define FEATURE_ARB_pixel_buffer_object   (FEATURE_GL && FEATURE_EXT_pixel_buffer_object)
  125. #define FEATURE_ARB_sync                  FEATURE_GL
  126. #define FEATURE_ARB_vertex_buffer_object  FEATURE_GL
  127.  
  128. #define FEATURE_EXT_framebuffer_blit      0
  129. #define FEATURE_EXT_framebuffer_object    0
  130. #define FEATURE_EXT_pixel_buffer_object   0
  131. #define FEATURE_EXT_texture_sRGB          FEATURE_GL
  132. #define FEATURE_EXT_transform_feedback    FEATURE_GL
  133.  
  134. #define FEATURE_APPLE_object_purgeable    0
  135. #define FEATURE_ATI_fragment_shader       0
  136. #define FEATURE_NV_fence                  0
  137. #define FEATURE_NV_fragment_program       0
  138. #define FEATURE_NV_vertex_program         0
  139.  
  140. #define FEATURE_OES_EGL_image             0
  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.