mesa/main: Make FEATURE_texture_s3tc follow feature conventions.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/src/mesa/main/texcompress_s3tc.h b/src/mesa/main/texcompress_s3tc.h
index 4041d244d1..2e7688d366 100644
--- a/src/mesa/main/texcompress_s3tc.h
+++ b/src/mesa/main/texcompress_s3tc.h
@@ -25,8 +25,12 @@
 #ifndef TEXCOMPRESS_S3TC_H
 #define TEXCOMPRESS_S3TC_H
 
+#include "main/mtypes.h"
 #include "texstore.h"
 
+
+#if FEATURE_texture_s3tc
+
 extern GLboolean
 _mesa_texstore_rgb_dxt1(TEXSTORE_PARAMS);
 
@@ -71,5 +75,32 @@ extern void
 _mesa_fetch_texel_2d_f_srgba_dxt5(const struct gl_texture_image *texImage,
                                   GLint i, GLint j, GLint k, GLfloat *texel);
 
+extern void
+_mesa_init_texture_s3tc(GLcontext *ctx);
+
+#else /* FEATURE_texture_s3tc */
+
+/* these are used only in texstore_funcs[] */
+#define _mesa_texstore_rgb_dxt1 NULL
+#define _mesa_texstore_rgba_dxt1 NULL
+#define _mesa_texstore_rgba_dxt3 NULL
+#define _mesa_texstore_rgba_dxt5 NULL
+
+/* these are used only in texfetch_funcs[] */
+#define _mesa_fetch_texel_2d_f_rgb_dxt1 NULL
+#define _mesa_fetch_texel_2d_f_rgba_dxt1 NULL
+#define _mesa_fetch_texel_2d_f_rgba_dxt3 NULL
+#define _mesa_fetch_texel_2d_f_rgba_dxt5 NULL
+#define _mesa_fetch_texel_2d_f_srgb_dxt1 NULL
+#define _mesa_fetch_texel_2d_f_srgba_dxt1 NULL
+#define _mesa_fetch_texel_2d_f_srgba_dxt3 NULL
+#define _mesa_fetch_texel_2d_f_srgba_dxt5 NULL
+
+static INLINE void
+_mesa_init_texture_s3tc(GLcontext *ctx)
+{
+}
+
+#endif /* FEATURE_texture_s3tc */
 
 #endif /* TEXCOMPRESS_S3TC_H */