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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /include/vcl/bitmap
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/vcl/bitmap')
-rw-r--r--include/vcl/bitmap/BitmapTypes.hxx68
1 files changed, 68 insertions, 0 deletions
diff --git a/include/vcl/bitmap/BitmapTypes.hxx b/include/vcl/bitmap/BitmapTypes.hxx
new file mode 100644
index 000000000..10d0f5332
--- /dev/null
+++ b/include/vcl/bitmap/BitmapTypes.hxx
@@ -0,0 +1,68 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#pragma once
+
+#include <sal/types.h>
+#include <cassert>
+
+namespace vcl
+{
+/** Pixel format of the bitmap in bits per pixel */
+enum class PixelFormat
+{
+ INVALID = 0,
+ N1_BPP = 1,
+ N8_BPP = 8,
+ N24_BPP = 24,
+ N32_BPP = 32
+};
+
+/** Is it a pixel format that forces creation of a palette */
+constexpr bool isPalettePixelFormat(PixelFormat ePixelFormat)
+{
+ assert(ePixelFormat != PixelFormat::INVALID);
+ return sal_uInt16(ePixelFormat) <= 8;
+}
+
+constexpr sal_uInt16 pixelFormatBitCount(PixelFormat ePixelFormat)
+{
+ return sal_uInt16(ePixelFormat);
+}
+
+constexpr sal_Int64 numberOfColors(PixelFormat ePixelFormat)
+{
+ return sal_Int64(1) << sal_Int64(ePixelFormat);
+}
+
+constexpr PixelFormat bitDepthToPixelFormat(sal_uInt16 nBitDepth)
+{
+ switch (nBitDepth)
+ {
+ case 1:
+ return PixelFormat::N1_BPP;
+ case 4:
+ assert(false);
+ break;
+ case 8:
+ return PixelFormat::N8_BPP;
+ case 24:
+ return PixelFormat::N24_BPP;
+ case 32:
+ return PixelFormat::N32_BPP;
+ default:
+ break;
+ }
+ return PixelFormat::INVALID;
+}
+
+} // end namespace vcl
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */