5d7f0875e9
This patch modifies the guest encoding libraries to avoid un-necessary copies when sending large buffers (e.g. pixels) to the host. Instead, the data is sent directly through a new IOStream method (writeFully()). On my machine, this improves the NenaMark2 benchmark (from 50.8 to 57.1 fps). More importantly, this speeds up the display of non-GL surfaces too, which are sent through the special rcUpdateColorBuffer() function in gralloc_goldfish. This is noticeable in many parts of the UI (e.g. when scrolling through lists). To tag a given parameter, use the new 'isLarge' variable flag in the protocol .attrib file. Implemented for the following encoding functions: rcUpdateColorBuffer glTexSubImage2D glTexImage2Di glBufferData glBufferSubData glCompressedTexImage2D glCompressedTexSubImage2D glTexImage3DOES glTexSubImage3DOES glCompressedTexImage3DOES glCompressedTexSubImage3DOES + Optimize the auto-generated encoder functions to avoid repeated function calls (for size computations). Change-Id: I13a02607b606c40cd05984cd2051b1f3424bc2d0
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __QEMU_PIPE_STREAM_H
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#define __QEMU_PIPE_STREAM_H
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/* This file implements an IOStream that uses a QEMU fast-pipe
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* to communicate with the emulator's 'opengles' service. See
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* <hardware/qemu_pipe.h> for more details.
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*/
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#include <stdlib.h>
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#include "IOStream.h"
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class QemuPipeStream : public IOStream {
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public:
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typedef enum { ERR_INVALID_SOCKET = -1000 } QemuPipeStreamError;
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explicit QemuPipeStream(size_t bufsize = 10000);
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~QemuPipeStream();
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int connect(void);
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virtual void *allocBuffer(size_t minSize);
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virtual int commitBuffer(size_t size);
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virtual const unsigned char *readFully( void *buf, size_t len);
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virtual const unsigned char *read( void *buf, size_t *inout_len);
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bool valid() { return m_sock >= 0; }
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int recv(void *buf, size_t len);
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virtual int writeFully(const void *buf, size_t len);
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private:
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int m_sock;
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size_t m_bufsize;
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unsigned char *m_buf;
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QemuPipeStream(int sock, size_t bufSize);
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};
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#endif
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