From 2e87660ca6deba9ba866a8012cf82f41374b5adb Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Tue, 10 Jan 2012 11:35:57 -0700 Subject: [PATCH] util: use memset() to initialize surface, sampler_view templates These initialization functions weren't initializing all the fields so some had undefined values. The callers of these functions sometimes use a structure assignment to initialize new objects from these templates so we'd just propagate the undefined values. That made for some confusing info when debugging, plus it could lead to bugs. v2: fix surf pointer mix-up: "&surf" -> "surf" Jakob Bornecrantz --- src/gallium/auxiliary/util/u_sampler.c | 6 ++++++ src/gallium/auxiliary/util/u_surface.c | 17 ++++++++++------- 2 files changed, 16 insertions(+), 7 deletions(-) diff --git a/src/gallium/auxiliary/util/u_sampler.c b/src/gallium/auxiliary/util/u_sampler.c index bb26099b7e1..227641bdafc 100644 --- a/src/gallium/auxiliary/util/u_sampler.c +++ b/src/gallium/auxiliary/util/u_sampler.c @@ -30,12 +30,18 @@ #include "u_sampler.h" +/** + * Initialize a pipe_sampler_view. 'view' is considered to have + * uninitialized contents. + */ static void default_template(struct pipe_sampler_view *view, const struct pipe_resource *texture, enum pipe_format format, unsigned expand_green_blue) { + memset(view, 0, sizeof(*view)); + /* XXX: Check if format is compatible with texture->format. */ diff --git a/src/gallium/auxiliary/util/u_surface.c b/src/gallium/auxiliary/util/u_surface.c index c7fbd3657f9..a541a38ffa1 100644 --- a/src/gallium/auxiliary/util/u_surface.c +++ b/src/gallium/auxiliary/util/u_surface.c @@ -42,17 +42,21 @@ #include "util/u_surface.h" #include "util/u_pack_color.h" + +/** + * Initialize a pipe_surface object. 'view' is considered to have + * uninitialized contents. + */ void -u_surface_default_template(struct pipe_surface *view, +u_surface_default_template(struct pipe_surface *surf, const struct pipe_resource *texture, unsigned bind) { - view->format = texture->format; - view->u.tex.level = 0; - view->u.tex.first_layer = 0; - view->u.tex.last_layer = 0; + memset(surf, 0, sizeof(*surf)); + + surf->format = texture->format; /* XXX should filter out all non-rt/ds bind flags ? */ - view->usage = bind; + surf->usage = bind; } /** @@ -108,7 +112,6 @@ util_create_rgba_surface(struct pipe_context *pipe, return FALSE; /* create surface */ - memset(&surf_templ, 0, sizeof(surf_templ)); u_surface_default_template(&surf_templ, *textureOut, bind); /* create surface / view into texture */ *surfaceOut = pipe->create_surface(pipe, -- 2.30.2