wined3d: Introduce a texture_binding_might_invalidate_ps() helper.

dlls/wined3d/cs.c

@@ -1454,6 +1454,34 @@ void wined3d_device_context_emit_set_constant_buffers(struct wined3d_device_cont
     wined3d_device_context_submit(context, WINED3D_CS_QUEUE_DEFAULT);
 }
 
+static bool texture_binding_might_invalidate_ps(struct wined3d_texture *texture,
+        struct wined3d_texture *prev, const struct wined3d_d3d_info *d3d_info)
+{
+    const struct wined3d_format *old_format, *new_format;
+    unsigned int old_caps, new_caps;
+
+    if (!prev)
+        return true;
+
+    if (wined3d_texture_gl(texture)->target != wined3d_texture_gl(prev)->target)
+        return true;
+
+    old_format = prev->resource.format;
+    new_format = texture->resource.format;
+    old_caps = prev->resource.format_caps;
+    new_caps = texture->resource.format_caps;
+    if ((old_caps & WINED3D_FORMAT_CAP_SHADOW) != (new_caps & WINED3D_FORMAT_CAP_SHADOW))
+        return true;
+
+    if (is_same_fixup(old_format->color_fixup, new_format->color_fixup))
+        return false;
+
+    if (can_use_texture_swizzle(d3d_info, new_format) && can_use_texture_swizzle(d3d_info, old_format))
+        return false;
+
+    return true;
+}
+
 static void wined3d_cs_exec_set_texture(struct wined3d_cs *cs, const void *data)
 {
     const struct wined3d_d3d_info *d3d_info = &cs->c.device->adapter->d3d_info;
@@ -1466,18 +1494,10 @@ static void wined3d_cs_exec_set_texture(struct wined3d_cs *cs, const void *data)
 
     if (op->texture)
     {
-        const struct wined3d_format *new_format = op->texture->resource.format;
-        const struct wined3d_format *old_format = prev ? prev->resource.format : NULL;
-        unsigned int old_fmt_caps = prev ? prev->resource.format_caps : 0;
-        unsigned int new_fmt_caps = op->texture->resource.format_caps;
-
         if (InterlockedIncrement(&op->texture->resource.bind_count) == 1)
             op->texture->sampler = op->stage;
 
-        if (!prev || wined3d_texture_gl(op->texture)->target != wined3d_texture_gl(prev)->target
-                || (!is_same_fixup(new_format->color_fixup, old_format->color_fixup)
-                && !(can_use_texture_swizzle(d3d_info, new_format) && can_use_texture_swizzle(d3d_info, old_format)))
-                || (new_fmt_caps & WINED3D_FORMAT_CAP_SHADOW) != (old_fmt_caps & WINED3D_FORMAT_CAP_SHADOW))
+        if (texture_binding_might_invalidate_ps(op->texture, prev, d3d_info))
             device_invalidate_state(cs->c.device, STATE_SHADER(WINED3D_SHADER_TYPE_PIXEL));
 
         if (!prev && op->stage < d3d_info->ffp_fragment_caps.max_blend_stages)