From d51912c0b42d86beb752caac578498daee9e8a34 Mon Sep 17 00:00:00 2001
From: Matthias Clasen <mclasen@redhat.com>
Date: Tue, 5 Mar 2024 09:07:09 -0500
Subject: [PATCH] gsk: Add gsk_gpu_frame_get_last_op

This function will be used in the future to find the previous
op during node processing, so we can make optimization decisions
based on that.
---
 gsk/gpu/gskgpuframe.c        | 19 +++++++++++++++++--
 gsk/gpu/gskgpuframeprivate.h |  1 +
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/gsk/gpu/gskgpuframe.c b/gsk/gpu/gskgpuframe.c
index 7b60d5a32b..d4045968e3 100644
--- a/gsk/gpu/gskgpuframe.c
+++ b/gsk/gpu/gskgpuframe.c
@@ -40,6 +40,7 @@ struct _GskGpuFramePrivate
 
   GskGpuOps ops;
   GskGpuOp *first_op;
+  GskGpuOp *last_op;
 
   GskGpuBuffer *vertex_buffer;
   guchar *vertex_buffer_data;
@@ -70,6 +71,8 @@ gsk_gpu_frame_default_cleanup (GskGpuFrame *self)
       gsk_gpu_op_finish (op);
     }
   gsk_gpu_ops_set_size (&priv->ops, 0);
+
+  priv->last_op = NULL;
 }
 
 static void
@@ -331,7 +334,7 @@ gsk_gpu_frame_sort_ops (GskGpuFrame *self)
 {
   GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
   SortData sort_data = { { NULL, }, };
-  
+
   gsk_gpu_frame_sort_render_pass (self, priv->first_op, &sort_data);
 
   if (sort_data.upload.first)
@@ -343,6 +346,8 @@ gsk_gpu_frame_sort_ops (GskGpuFrame *self)
     priv->first_op = sort_data.command.first;
   if (sort_data.command.last)
     sort_data.command.last->next = NULL;
+
+  priv->last_op = NULL;
 }
 
 gpointer
@@ -360,7 +365,17 @@ gsk_gpu_frame_alloc_op (GskGpuFrame *self,
                       NULL,
                       size);
 
-  return gsk_gpu_ops_index (&priv->ops, pos);
+  priv->last_op = (GskGpuOp *) gsk_gpu_ops_index (&priv->ops, pos);
+
+  return priv->last_op;
+}
+
+GskGpuOp *
+gsk_gpu_frame_get_last_op (GskGpuFrame *self)
+{
+  GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
+
+  return priv->last_op;
 }
 
 GskGpuImage *
diff --git a/gsk/gpu/gskgpuframeprivate.h b/gsk/gpu/gskgpuframeprivate.h
index db0681a9cc..10dfbf0aa9 100644
--- a/gsk/gpu/gskgpuframeprivate.h
+++ b/gsk/gpu/gskgpuframeprivate.h
@@ -85,6 +85,7 @@ void                    gsk_gpu_frame_download_texture                  (GskGpuF
                                                                          GdkMemoryFormat         format,
                                                                          guchar                 *data,
                                                                          gsize                   stride);
+GskGpuOp               *gsk_gpu_frame_get_last_op                       (GskGpuFrame            *self);
 
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(GskGpuFrame, g_object_unref)