Adding upstream version 1.3+ds.upstream/1.3+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 52 insertions, 0 deletions

diff --git a/src/ui/widget/canvas/texturecache.h b/src/ui/widget/canvas/texturecache.h
new file mode 100644
index 0000000..ea78a67
--- /dev/null
+++ b/src/ui/widget/canvas/texturecache.h
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Extremely basic gadget for re-using textures, since texture creation turns out to be quite expensive.
+ * Copyright (C) 2022 PBS <pbs3141@gmail.com>
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#ifndef INKSCAPE_UI_WIDGET_CANVAS_TEXTURECACHE_H
+#define INKSCAPE_UI_WIDGET_CANVAS_TEXTURECACHE_H
+
+#include <memory>
+#include "texture.h"
+
+namespace Inkscape {
+namespace UI {
+namespace Widget {
+
+class TextureCache
+{
+public:
+    virtual ~TextureCache() = default;
+
+    static std::unique_ptr<TextureCache> create();
+
+    /**
+     * Request a texture of at least the given dimensions.
+     * The texture is bound to GL_TEXTURE_2D.
+     */
+    virtual Texture request(Geom::IntPoint const &dimensions) = 0;
+
+    /**
+     * Return a no-longer used texture to the pool.
+     */
+    virtual void finish(Texture tex) = 0;
+};
+
+} // namespace Widget
+} // namespace UI
+} // namespace Inkscape
+
+#endif // INKSCAPE_UI_WIDGET_CANVAS_TEXTURECACHE_H
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :