From 18038b9fd6792be794ae1be80e006542be602b2a Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Thu, 17 Dec 2015 14:16:24 -0700 Subject: [PATCH] st/mesa: check texture target in allocate_full_mipmap() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Some kinds of textures never have mipmaps. 3D textures seldom have mipmaps. Reviewed-by: José Fonseca --- src/mesa/state_tracker/st_cb_texture.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c index 867d4da..f8b3679 100644 --- a/src/mesa/state_tracker/st_cb_texture.c +++ b/src/mesa/state_tracker/st_cb_texture.c @@ -404,6 +404,16 @@ static boolean allocate_full_mipmap(const struct st_texture_object *stObj, const struct st_texture_image *stImage) { + switch (stObj->base.Target) { + case GL_TEXTURE_RECTANGLE_NV: + case GL_TEXTURE_BUFFER: + case GL_TEXTURE_EXTERNAL_OES: + case GL_TEXTURE_2D_MULTISAMPLE: + case GL_TEXTURE_2D_MULTISAMPLE_ARRAY: + /* these texture types cannot be mipmapped */ + return FALSE; + } + if (stImage->base.Level > 0 || stObj->base.GenerateMipmap) return TRUE; @@ -420,6 +430,10 @@ allocate_full_mipmap(const struct st_texture_object *stObj, /* not a mipmap minification filter */ return FALSE; + if (stObj->base.Target == GL_TEXTURE_3D) + /* 3D textures are seldom mipmapped */ + return FALSE; + return TRUE; } -- 2.7.4