Mesa (main): zink: force render target usage for sampler-only resources

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Module: Mesa
Branch: main
Commit: 7aee9f12b9c1f17ae2662c8043c8679ce698b731
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=7aee9f12b9c1f17ae2662c8043c8679ce698b731

Author: Mike Blumenkrantz <michael.blumenkrantz at gmail.com>
Date:   Wed Apr 20 13:51:13 2022 -0400

zink: force render target usage for sampler-only resources

these might hit u_blitter later, which will require rt usage
to handle texture views, so add rt usage now to avoid failing later

cc: mesa-stable

Reviewed-by: Dave Airlie <airlied at redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16563>

---

 src/gallium/drivers/zink/zink_resource.c | 29 ++++++++++++++++++++++++-----
 1 file changed, 24 insertions(+), 5 deletions(-)

diff --git a/src/gallium/drivers/zink/zink_resource.c b/src/gallium/drivers/zink/zink_resource.c
index cb6c17d021a..fb926f41fcc 100644
--- a/src/gallium/drivers/zink/zink_resource.c
+++ b/src/gallium/drivers/zink/zink_resource.c
@@ -247,10 +247,11 @@ check_ici(struct zink_screen *screen, VkImageCreateInfo *ici, uint64_t modifier)
 }
 
 static VkImageUsageFlags
-get_image_usage_for_feats(struct zink_screen *screen, VkFormatFeatureFlags feats, const struct pipe_resource *templ, unsigned bind)
+get_image_usage_for_feats(struct zink_screen *screen, VkFormatFeatureFlags feats, const struct pipe_resource *templ, unsigned bind, bool *need_extended)
 {
    VkImageUsageFlags usage = 0;
    bool is_planar = util_format_get_num_planes(templ->format) > 1;
+   *need_extended = false;
 
    if (bind & ZINK_BIND_TRANSIENT)
       usage |= VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT;
@@ -274,8 +275,18 @@ get_image_usage_for_feats(struct zink_screen *screen, VkFormatFeatureFlags feats
          usage |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
          if ((bind & (PIPE_BIND_LINEAR | PIPE_BIND_SHARED)) != (PIPE_BIND_LINEAR | PIPE_BIND_SHARED))
             usage |= VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT;
-      } else
+      } else {
+         /* trust that gallium isn't going to give us anything wild */
+         *need_extended = true;
+         return 0;
+      }
+   } else if ((bind & PIPE_BIND_SAMPLER_VIEW) && !util_format_is_depth_or_stencil(templ->format)) {
+      if (!(feats & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT)) {
+         /* ensure we can u_blitter this later */
+         *need_extended = true;
          return 0;
+      }
+      usage |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
    }
 
    if (bind & PIPE_BIND_DEPTH_STENCIL) {
@@ -313,6 +324,7 @@ static VkImageUsageFlags
 get_image_usage(struct zink_screen *screen, VkImageCreateInfo *ici, const struct pipe_resource *templ, unsigned bind, unsigned modifiers_count, const uint64_t *modifiers, uint64_t *mod)
 {
    VkImageTiling tiling = ici->tiling;
+   bool need_extended = false;
    *mod = DRM_FORMAT_MOD_INVALID;
    if (modifiers_count) {
       bool have_linear = false;
@@ -327,7 +339,8 @@ get_image_usage(struct zink_screen *screen, VkImageCreateInfo *ici, const struct
          }
          VkFormatFeatureFlags feats = find_modifier_feats(prop, modifiers[i], mod);
          if (feats) {
-            VkImageUsageFlags usage = get_image_usage_for_feats(screen, feats, templ, bind);
+            VkImageUsageFlags usage = get_image_usage_for_feats(screen, feats, templ, bind, &need_extended);
+            assert(!need_extended);
             if (usage) {
                ici->usage = usage;
                if (check_ici(screen, ici, *mod))
@@ -339,7 +352,8 @@ get_image_usage(struct zink_screen *screen, VkImageCreateInfo *ici, const struct
       if (have_linear) {
          VkFormatFeatureFlags feats = find_modifier_feats(prop, DRM_FORMAT_MOD_LINEAR, mod);
          if (feats) {
-            VkImageUsageFlags usage = get_image_usage_for_feats(screen, feats, templ, bind);
+            VkImageUsageFlags usage = get_image_usage_for_feats(screen, feats, templ, bind, &need_extended);
+            assert(!need_extended);
             if (usage) {
                ici->usage = usage;
                if (check_ici(screen, ici, *mod))
@@ -353,7 +367,12 @@ get_image_usage(struct zink_screen *screen, VkImageCreateInfo *ici, const struct
       VkFormatFeatureFlags feats = tiling == VK_IMAGE_TILING_LINEAR ? props.linearTilingFeatures : props.optimalTilingFeatures;
       if (ici->flags & VK_IMAGE_CREATE_EXTENDED_USAGE_BIT)
          feats = UINT32_MAX;
-      VkImageUsageFlags usage = get_image_usage_for_feats(screen, feats, templ, bind);
+      VkImageUsageFlags usage = get_image_usage_for_feats(screen, feats, templ, bind, &need_extended);
+      if (need_extended) {
+         ici->flags |= VK_IMAGE_CREATE_EXTENDED_USAGE_BIT;
+         feats = UINT32_MAX;
+         usage = get_image_usage_for_feats(screen, feats, templ, bind, &need_extended);
+      }
       if (usage) {
          ici->usage = usage;
          if (check_ici(screen, ici, *mod))