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196050bd23
Extensive profiling reveals that the glibc memcpy performs up to 2x faster then the existing SIMD implementation that was in use here. This patch also will copy large 1MB chunks if the pitch of the source and destination match further increasing throughput.
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/**
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* Looking Glass
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* Copyright (C) 2017-2021 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _H_LG_COMMON_FRAMEBUFFER_
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#define _H_LG_COMMON_FRAMEBUFFER_
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#include <stdlib.h>
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#include <stdbool.h>
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#include <stdint.h>
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typedef struct stFrameBuffer FrameBuffer;
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typedef bool (*FrameBufferReadFn)(void * opaque, const void * src, size_t size);
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/**
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* The size of the FrameBuffer struct
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*/
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extern const size_t FrameBufferStructSize;
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/**
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* Wait for the framebuffer to fill to the specified size
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*/
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bool framebuffer_wait(const FrameBuffer * frame, size_t size);
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/**
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* Read data from the KVMFRFrame into the dst buffer
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*/
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bool framebuffer_read(const FrameBuffer * frame, void * dst, size_t dstpitch,
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size_t height, size_t width, size_t bpp, size_t pitch);
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/**
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* Read data from the KVMFRFrame using a callback
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*/
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bool framebuffer_read_fn(const FrameBuffer * frame, size_t height, size_t width,
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size_t bpp, size_t pitch, FrameBufferReadFn fn, void * opaque);
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/**
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* Prepare the framebuffer for writing
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*/
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void framebuffer_prepare(FrameBuffer * frame);
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/**
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* Write data from the src buffer into the KVMFRFrame
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*/
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bool framebuffer_write(FrameBuffer * frame, const void * src, size_t size);
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#endif
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