swrast: use _mesa_ffs() instead of ffs()

Fixes MSVC build.

diff --git a/src/mesa/swrast/s_texture.c b/src/mesa/swrast/s_texture.c
index 80c3070c941c0656b4b35513db57bfa792fefc5d..fb1edb318ddac259761604670f6e185871cb2909 100644 (file)
--- a/src/mesa/swrast/s_texture.c
+++ b/src/mesa/swrast/s_texture.c
@@ -279,7 +279,7 @@ _swrast_map_textures(struct gl_context *ctx)
 
    /* loop over enabled texture units */
    while (enabledUnits) {
-      GLuint unit = ffs(enabledUnits) - 1;
+      GLuint unit = _mesa_ffs(enabledUnits) - 1;
       struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current;
       
       _swrast_map_texture(ctx, texObj);
@@ -299,7 +299,7 @@ _swrast_unmap_textures(struct gl_context *ctx)
 
    /* loop over enabled texture units */
    while (enabledUnits) {
-      GLuint unit = ffs(enabledUnits) - 1;
+      GLuint unit = _mesa_ffs(enabledUnits) - 1;
       struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current;
       
       _swrast_unmap_texture(ctx, texObj);