0bfffdaf82
Part of overall "improve image filtering situation" (#116980), this PR addresses two issues: - Bilinear (default) image filtering makes half a source pixel wide transparent border around the image. This is very noticeable when scaling images/movies up in VSE. However, when there is no scaling up but you have slightly rotated image, this creates a "somewhat nice" anti-aliasing around the edge. - The other filtering kinds (e.g. cubic) do not have this behavior. So they do not create unexpected transparency when scaling up (yay), however for slightly rotated images the edge is "jagged" (oh no). More detail and images in PR. Pull Request: https://projects.blender.org/blender/blender/pulls/117717
39 lines
874 B
C
39 lines
874 B
C
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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/** \file
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* \ingroup bli
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*
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* SIMD instruction support.
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*/
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#if defined(__ARM_NEON) && defined(WITH_SSE2NEON)
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/* SSE/SSE2 emulation on ARM Neon. Match SSE precision. */
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# if !defined(SSE2NEON_PRECISE_MINMAX)
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# define SSE2NEON_PRECISE_MINMAX 1
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# endif
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# if !defined(SSE2NEON_PRECISE_DIV)
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# define SSE2NEON_PRECISE_DIV 1
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# endif
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# if !defined(SSE2NEON_PRECISE_SQRT)
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# define SSE2NEON_PRECISE_SQRT 1
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# endif
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# include <sse2neon.h>
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# define BLI_HAVE_SSE2 1
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#elif defined(__SSE2__)
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/* Native SSE2 on Intel/AMD. */
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# include <emmintrin.h>
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# define BLI_HAVE_SSE2 1
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#else
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# define BLI_HAVE_SSE2 0
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#endif
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#if defined(__SSE4_1__) || (defined(__ARM_NEON) && defined(WITH_SSE2NEON))
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# define BLI_HAVE_SSE4 1
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#else
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# define BLI_HAVE_SSE4 0
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#endif
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