From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- gfx/2d/Swizzle.h | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 gfx/2d/Swizzle.h (limited to 'gfx/2d/Swizzle.h') diff --git a/gfx/2d/Swizzle.h b/gfx/2d/Swizzle.h new file mode 100644 index 0000000000..b797d7af96 --- /dev/null +++ b/gfx/2d/Swizzle.h @@ -0,0 +1,72 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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/. */ + +#ifndef MOZILLA_GFX_SWIZZLE_H_ +#define MOZILLA_GFX_SWIZZLE_H_ + +#include "Point.h" + +namespace mozilla { +namespace gfx { + +/** + * Premultiplies source and writes it to destination. Source and destination may + * be the same to premultiply in-place. The source format must have an alpha + * channel. + */ +GFX2D_API bool PremultiplyData(const uint8_t* aSrc, int32_t aSrcStride, + SurfaceFormat aSrcFormat, uint8_t* aDst, + int32_t aDstStride, SurfaceFormat aDstFormat, + const IntSize& aSize); + +/** + * Unpremultiplies source and writes it to destination. Source and destination + * may be the same to unpremultiply in-place. Both the source and destination + * formats must have an alpha channel. + */ +GFX2D_API bool UnpremultiplyData(const uint8_t* aSrc, int32_t aSrcStride, + SurfaceFormat aSrcFormat, uint8_t* aDst, + int32_t aDstStride, SurfaceFormat aDstFormat, + const IntSize& aSize); + +/** + * Swizzles source and writes it to destination. Source and destination may be + * the same to swizzle in-place. + */ +GFX2D_API bool SwizzleData(const uint8_t* aSrc, int32_t aSrcStride, + SurfaceFormat aSrcFormat, uint8_t* aDst, + int32_t aDstStride, SurfaceFormat aDstFormat, + const IntSize& aSize); + +/** + * Swizzles source and writes it to destination. Source and destination may be + * the same to swizzle in-place. + */ +typedef void (*SwizzleRowFn)(const uint8_t* aSrc, uint8_t* aDst, + int32_t aLength); + +/** + * Get a function pointer to perform premultiplication between two formats. + */ +GFX2D_API SwizzleRowFn PremultiplyRow(SurfaceFormat aSrcFormat, + SurfaceFormat aDstFormat); + +/** + * Get a function pointer to perform unpremultiplication between two formats. + */ +GFX2D_API SwizzleRowFn UnpremultiplyRow(SurfaceFormat aSrcFormat, + SurfaceFormat aDstFormat); + +/** + * Get a function pointer to perform swizzling between two formats. + */ +GFX2D_API SwizzleRowFn SwizzleRow(SurfaceFormat aSrcFormat, + SurfaceFormat aDstFormat); + +} // namespace gfx +} // namespace mozilla + +#endif /* MOZILLA_GFX_SWIZZLE_H_ */ -- cgit v1.2.3