From 605f3021f0eedf2114c5c6f1b2a2df48def88fce Mon Sep 17 00:00:00 2001
From: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Date: Thu, 14 Apr 2022 09:09:35 -0400
Subject: [PATCH] zink: make update_framebuffer_state() public

this is useful

Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16071>
---
 src/gallium/drivers/zink/zink_context.c     | 20 +++-----------------
 src/gallium/drivers/zink/zink_framebuffer.c | 14 ++++++++++++++
 src/gallium/drivers/zink/zink_framebuffer.h |  3 +++
 3 files changed, 20 insertions(+), 17 deletions(-)

diff --git a/src/gallium/drivers/zink/zink_context.c b/src/gallium/drivers/zink/zink_context.c
index 710d56c0e8a..eb5afb42a9c 100644
--- a/src/gallium/drivers/zink/zink_context.c
+++ b/src/gallium/drivers/zink/zink_context.c
@@ -2119,20 +2119,6 @@ equals_framebuffer_imageless(const void *a, const void *b)
    return memcmp(a, b, offsetof(struct zink_framebuffer_state, infos) + sizeof(s->infos[0]) * s->num_attachments) == 0;
 }
 
-static void
-update_framebuffer_state(struct zink_context *ctx, int old_w, int old_h)
-{
-   if (ctx->fb_state.width != old_w || ctx->fb_state.height != old_h)
-      ctx->scissor_changed = true;
-   /* get_framebuffer adds a ref if the fb is reused or created;
-    * always do get_framebuffer first to avoid deleting the same fb
-    * we're about to use
-    */
-   struct zink_framebuffer *fb = zink_get_framebuffer(ctx);
-   ctx->fb_changed |= ctx->framebuffer != fb;
-   ctx->framebuffer = fb;
-}
-
 static void
 setup_framebuffer(struct zink_context *ctx)
 {
@@ -2185,7 +2171,7 @@ setup_framebuffer(struct zink_context *ctx)
       unsigned old_h = ctx->fb_state.height;
       ctx->fb_state.width = ctx->swapchain_size.width;
       ctx->fb_state.height = ctx->swapchain_size.height;
-      update_framebuffer_state(ctx, old_w, old_h);
+      zink_update_framebuffer_state(ctx, old_w, old_h);
       ctx->swapchain_size.width = ctx->swapchain_size.height = 0;
    }
 
@@ -2697,7 +2683,7 @@ zink_set_color_write_enables(struct zink_context *ctx)
       /* use dummy color buffers instead of the more sane option */
       zink_end_render_pass(ctx);
       ctx->rp_changed = true;
-      update_framebuffer_state(ctx, ctx->fb_state.width, ctx->fb_state.height);
+      zink_update_framebuffer_state(ctx, ctx->fb_state.width, ctx->fb_state.height);
    } else {
       reapply_color_write(ctx);
    }
@@ -2774,7 +2760,7 @@ zink_set_framebuffer_state(struct pipe_context *pctx,
    }
    rebind_fb_state(ctx, NULL, true);
    ctx->fb_state.samples = MAX2(samples, 1);
-   update_framebuffer_state(ctx, w, h);
+   zink_update_framebuffer_state(ctx, w, h);
 
    uint8_t rast_samples = ctx->fb_state.samples - 1;
    if (rast_samples != ctx->gfx_pipeline_state.rast_samples)
diff --git a/src/gallium/drivers/zink/zink_framebuffer.c b/src/gallium/drivers/zink/zink_framebuffer.c
index f6ab4807403..ec83d3e26fc 100644
--- a/src/gallium/drivers/zink/zink_framebuffer.c
+++ b/src/gallium/drivers/zink/zink_framebuffer.c
@@ -207,3 +207,17 @@ debug_describe_zink_framebuffer(char* buf, const struct zink_framebuffer *ptr)
 {
    sprintf(buf, "zink_framebuffer");
 }
+
+void
+zink_update_framebuffer_state(struct zink_context *ctx, int old_w, int old_h)
+{
+   if (ctx->fb_state.width != old_w || ctx->fb_state.height != old_h)
+      ctx->scissor_changed = true;
+   /* get_framebuffer adds a ref if the fb is reused or created;
+    * always do get_framebuffer first to avoid deleting the same fb
+    * we're about to use
+    */
+   struct zink_framebuffer *fb = zink_get_framebuffer(ctx);
+   ctx->fb_changed |= ctx->framebuffer != fb;
+   ctx->framebuffer = fb;
+}
diff --git a/src/gallium/drivers/zink/zink_framebuffer.h b/src/gallium/drivers/zink/zink_framebuffer.h
index 7c55c6101fe..24d0dbf46d7 100644
--- a/src/gallium/drivers/zink/zink_framebuffer.h
+++ b/src/gallium/drivers/zink/zink_framebuffer.h
@@ -84,4 +84,7 @@ zink_framebuffer_reference(struct zink_screen *screen,
 
 struct zink_framebuffer *
 zink_get_framebuffer(struct zink_context *ctx);
+
+void
+zink_update_framebuffer_state(struct zink_context *ctx, int old_w, int old_h);
 #endif