OSDN Git Service

Merge branch 'master' into opengl-es-v2
[android-x86/external-mesa.git] / src / mesa / main / getstring.c
index 4b1f4b0..c203b04 100644 (file)
 
 
 /**
- * Examine enabled GL extensions to determine GL version.
- * \return version string
- */
-static const char *
-compute_version(const GLcontext *ctx)
-{
-   static const char *version_1_2 = "1.2 Mesa " MESA_VERSION_STRING;
-   static const char *version_1_3 = "1.3 Mesa " MESA_VERSION_STRING;
-   static const char *version_1_4 = "1.4 Mesa " MESA_VERSION_STRING;
-   static const char *version_1_5 = "1.5 Mesa " MESA_VERSION_STRING;
-   static const char *version_2_0 = "2.0 Mesa " MESA_VERSION_STRING;
-   static const char *version_2_1 = "2.1 Mesa " MESA_VERSION_STRING;
-
-   const GLboolean ver_1_3 = (ctx->Extensions.ARB_multisample &&
-                              ctx->Extensions.ARB_multitexture &&
-                              ctx->Extensions.ARB_texture_border_clamp &&
-                              ctx->Extensions.ARB_texture_compression &&
-                              ctx->Extensions.ARB_texture_cube_map &&
-                              ctx->Extensions.EXT_texture_env_add &&
-                              ctx->Extensions.ARB_texture_env_combine &&
-                              ctx->Extensions.ARB_texture_env_dot3);
-   const GLboolean ver_1_4 = (ver_1_3 &&
-                              ctx->Extensions.ARB_depth_texture &&
-                              ctx->Extensions.ARB_shadow &&
-                              ctx->Extensions.ARB_texture_env_crossbar &&
-                              ctx->Extensions.ARB_texture_mirrored_repeat &&
-                              ctx->Extensions.ARB_window_pos &&
-                              ctx->Extensions.EXT_blend_color &&
-                              ctx->Extensions.EXT_blend_func_separate &&
-                              ctx->Extensions.EXT_blend_minmax &&
-                              ctx->Extensions.EXT_blend_subtract &&
-                              ctx->Extensions.EXT_fog_coord &&
-                              ctx->Extensions.EXT_multi_draw_arrays &&
-                              ctx->Extensions.EXT_point_parameters &&
-                              ctx->Extensions.EXT_secondary_color &&
-                              ctx->Extensions.EXT_stencil_wrap &&
-                              ctx->Extensions.EXT_texture_lod_bias &&
-                              ctx->Extensions.SGIS_generate_mipmap);
-   const GLboolean ver_1_5 = (ver_1_4 &&
-                              ctx->Extensions.ARB_occlusion_query &&
-                              ctx->Extensions.ARB_vertex_buffer_object &&
-                              ctx->Extensions.EXT_shadow_funcs);
-   const GLboolean ver_2_0 = (ver_1_5 &&
-                              ctx->Extensions.ARB_draw_buffers &&
-                              ctx->Extensions.ARB_point_sprite &&
-                              ctx->Extensions.ARB_shader_objects &&
-                              ctx->Extensions.ARB_vertex_shader &&
-                              ctx->Extensions.ARB_fragment_shader &&
-                              ctx->Extensions.ARB_texture_non_power_of_two &&
-                              ctx->Extensions.EXT_blend_equation_separate &&
-
-                             /* Technically, 2.0 requires the functionality
-                              * of the EXT version.  Enable 2.0 if either
-                              * extension is available, and assume that a
-                              * driver that only exposes the ATI extension
-                              * will fallback to software when necessary.
-                              */
-                             (ctx->Extensions.EXT_stencil_two_side
-                              || ctx->Extensions.ATI_separate_stencil));
-   const GLboolean ver_2_1 = (ver_2_0 &&
-                              ctx->Extensions.ARB_shading_language_120 &&
-                              ctx->Extensions.EXT_pixel_buffer_object &&
-                              ctx->Extensions.EXT_texture_sRGB);
-   if (ver_2_1)
-      return version_2_1;
-   if (ver_2_0)
-      return version_2_0;
-   if (ver_1_5)
-      return version_1_5;
-   if (ver_1_4)
-      return version_1_4;
-   if (ver_1_3)
-      return version_1_3;
-   return version_1_2;
-}
-
-
-
-/**
  * Query string-valued state.  The return value should _not_ be freed by
  * the caller.
  *
@@ -149,7 +70,7 @@ _mesa_GetString( GLenum name )
       case GL_RENDERER:
          return (const GLubyte *) renderer;
       case GL_VERSION:
-         return (const GLubyte *) compute_version(ctx);
+         return (const GLubyte *) ctx->VersionString;
       case GL_EXTENSIONS:
          if (!ctx->Extensions.String)
             ctx->Extensions.String = _mesa_make_extension_string(ctx);
@@ -184,6 +105,34 @@ _mesa_GetString( GLenum name )
 
 
 /**
+ * GL3
+ */
+const GLubyte * GLAPIENTRY
+_mesa_GetStringi(GLenum name, GLuint index)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if (!ctx)
+      return NULL;
+
+   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL);
+
+   switch (name) {
+   case GL_EXTENSIONS:
+      if (index >= _mesa_get_extension_count(ctx)) {
+         _mesa_error(ctx, GL_INVALID_VALUE, "glGetStringi(index=%u)", index);
+         return (const GLubyte *) 0;
+      }
+      return _mesa_get_enabled_extension(ctx, index);
+   default:
+      _mesa_error( ctx, GL_INVALID_ENUM, "glGetString" );
+      return (const GLubyte *) 0;
+   }
+}
+
+
+
+/**
  * Return pointer-valued state, such as a vertex array pointer.
  *
  * \param pname  names state to be queried