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Diffstat (limited to 'src/mesa/main/extensions.c')
-rw-r--r--src/mesa/main/extensions.c32
1 files changed, 26 insertions, 6 deletions
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index b3b7a05382..b6ff6d1293 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -1,4 +1,4 @@
-/* $Id: extensions.c,v 1.18 2000/02/25 03:55:40 keithw Exp $ */
+/* $Id: extensions.c,v 1.19 2000/03/07 17:54:58 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -41,7 +41,7 @@
struct extension {
struct extension *next, *prev;
- int enabled;
+ GLint enabled;
char name[MAX_EXT_NAMELEN+1];
void (*notify)( GLcontext *, GLboolean );
};
@@ -77,9 +77,23 @@ static struct { int enabled; const char *name; } default_extensions[] = {
{ ALWAYS_ENABLED, "GL_ARB_tranpose_matrix" },
{ DEFAULT_OFF, "GL_EXT_vertex_array_set" },
{ DEFAULT_OFF, "GL_EXT_texture_env" },
+ { DEFAULT_ON, "GL_EXT_texture_lod_bias" }
};
+/*
+ * Update the boolean convenience flags in the Extensions struct.
+ */
+static void
+update_extension_flags( GLcontext *ctx )
+{
+ /* Update flags */
+ ctx->Extensions.HaveTextureEnvAdd = gl_extension_is_enabled(ctx, "GL_EXT_texture_env_add");
+ ctx->Extensions.HaveTextureLodBias = gl_extension_is_enabled(ctx, "GL_EXT_texture_lod_bias");
+}
+
+
+
int gl_extensions_add( GLcontext *ctx,
int state,
const char *name,
@@ -101,21 +115,26 @@ int gl_extensions_add( GLcontext *ctx,
}
-static int set_extension( GLcontext *ctx, const char *name, GLuint state )
+/*
+ * Either enable or disable the named extension.
+ */
+static int set_extension( GLcontext *ctx, const char *name, GLint state )
{
struct extension *i;
foreach( i, ctx->Extensions.ext_list )
if (strncmp(i->name, name, MAX_EXT_NAMELEN) == 0)
break;
- if (i == ctx->Extensions.ext_list) return 1;
+ if (i == ctx->Extensions.ext_list)
+ return 1;
- if (i->enabled && !(i->enabled & ALWAYS_ENABLED))
- {
+ if (i->enabled && !(i->enabled & ALWAYS_ENABLED)) {
if (i->notify) i->notify( ctx, state );
i->enabled = state;
}
+ update_extension_flags(ctx);
+
return 0;
}
@@ -189,6 +208,7 @@ void gl_extensions_ctr( GLcontext *ctx )
default_extensions[i].name,
0 );
}
+ update_extension_flags(ctx);
}