[gtk/glyphy2: 7/28] gsk/gl: only clear glyph cache durign reclaimation

[Matthias Clasen <matthiasc src gnome org>]

commit a0142ca62f3aa6c94667c44ab42dca8a532e30d2
Author: Christian Hergert <chergert redhat com>
Date:   Tue Mar 15 15:55:30 2022 -0700

    gsk/gl: only clear glyph cache durign reclaimation
    
    We don't need to clear the front cache on every frame as we can clear it
    specifically when we do reclaimation to avoid unnecessary memset() calls.

 gsk/gl/gskglglyphlibrary.c          | 8 ++++----
 gsk/gl/gskgltexturelibrary.c        | 8 ++++++++
 gsk/gl/gskgltexturelibraryprivate.h | 1 +
 3 files changed, 13 insertions(+), 4 deletions(-)
---
diff --git a/gsk/gl/gskglglyphlibrary.c b/gsk/gl/gskglglyphlibrary.c
index bd811eadba..06fe76c097 100644
--- a/gsk/gl/gskglglyphlibrary.c
+++ b/gsk/gl/gskglglyphlibrary.c
@@ -84,12 +84,12 @@ gsk_gl_glyph_value_free (gpointer data)
 }
 
 static void
-gsk_gl_glyph_library_begin_frame (GskGLTextureLibrary *library,
-                                  gint64               frame_id,
-                                  GPtrArray           *removed_atlases)
+gsk_gl_glyph_library_clear_cache (GskGLTextureLibrary *library)
 {
   GskGLGlyphLibrary *self = (GskGLGlyphLibrary *)library;
 
+  g_assert (GSK_IS_GL_GLYPH_LIBRARY (self));
+
   memset (self->front, 0, sizeof self->front);
 }
 
@@ -111,7 +111,7 @@ gsk_gl_glyph_library_class_init (GskGLGlyphLibraryClass *klass)
 
   object_class->finalize = gsk_gl_glyph_library_finalize;
 
-  library_class->begin_frame = gsk_gl_glyph_library_begin_frame;
+  library_class->clear_cache = gsk_gl_glyph_library_clear_cache;
 }
 
 static void
diff --git a/gsk/gl/gskgltexturelibrary.c b/gsk/gl/gskgltexturelibrary.c
index fadec60a0c..b0694e7afb 100644
--- a/gsk/gl/gskgltexturelibrary.c
+++ b/gsk/gl/gskgltexturelibrary.c
@@ -141,6 +141,7 @@ gsk_gl_texture_library_begin_frame (GskGLTextureLibrary *self,
                                     GPtrArray            *removed_atlases)
 {
   GHashTableIter iter;
+  gboolean drop_caches = FALSE;
 
   g_return_if_fail (GSK_IS_GL_TEXTURE_LIBRARY (self));
 
@@ -175,6 +176,8 @@ gsk_gl_texture_library_begin_frame (GskGLTextureLibrary *self,
                 if (dropped > 0)
                   g_message ("%s: Dropped %d items",
                              G_OBJECT_TYPE_NAME (self), dropped));
+
+      drop_caches |= dropped > 0;
     }
 
   if (frame_id % self->max_frame_age == 0)
@@ -208,7 +211,12 @@ gsk_gl_texture_library_begin_frame (GskGLTextureLibrary *self,
                                         g_hash_table_size (self->hash_table),
                                         atlased,
                                         g_hash_table_size (self->hash_table) - atlased));
+
+      drop_caches |= dropped > 0;
     }
+
+  if (drop_caches && GSK_GL_TEXTURE_LIBRARY_GET_CLASS (self)->clear_cache)
+    GSK_GL_TEXTURE_LIBRARY_GET_CLASS (self)->clear_cache (self);
 }
 
 static GskGLTexture *
diff --git a/gsk/gl/gskgltexturelibraryprivate.h b/gsk/gl/gskgltexturelibraryprivate.h
index bb1db12172..39276ff69d 100644
--- a/gsk/gl/gskgltexturelibraryprivate.h
+++ b/gsk/gl/gskgltexturelibraryprivate.h
@@ -103,6 +103,7 @@ typedef struct _GskGLTextureLibraryClass
   void (*begin_frame) (GskGLTextureLibrary *library,
                        gint64               frame_id,
                        GPtrArray           *removed_atlases);
+  void (*clear_cache) (GskGLTextureLibrary *library);
 } GskGLTextureLibraryClass;
 
 G_DEFINE_AUTOPTR_CLEANUP_FUNC (GskGLTextureLibrary, g_object_unref)