3330b20303
When EGLImage extension is not available, SurfaceFlinger will fallback to using glTexImage2D and glTexSubImage2D instead, which requires 50% more memory and an extra copy. However this code path has never been exercised and had some bugs which this patch fix. Mainly the scale factor wasn't computed right when falling back on glDrawElements. We also fallback to this mode of operation if a buffer doesn't have the adequate usage bits for EGLImage usage. This changes only code that is currently not executed. Some refactoring was needed to keep the change clean. This doesn't change anything functionaly.
111 lines
2.6 KiB
C++
111 lines
2.6 KiB
C++
/*
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**
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** Copyright 2009, 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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#define LOG_TAG "StopWatch"
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#include <stdlib.h>
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#include <stdio.h>
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#include <utils/StopWatch.h>
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#include <utils/Log.h>
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#include <ui/GraphicBuffer.h>
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#include <ui/GraphicBufferMapper.h>
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using namespace android;
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void* lamecpy(void* d, void const* s, size_t size) {
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char* dst = (char*)d;
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char const* src = (char const*)s;
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while (size) {
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*dst++ = *src++;
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size--;
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}
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return d;
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}
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int main(int argc, char** argv)
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{
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size_t size = 128*256*4;
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void* temp = malloc(size);
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void* temp2 = malloc(size);
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memset(temp, 0, size);
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memset(temp2, 0, size);
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sp<GraphicBuffer> buffer = new GraphicBuffer(128, 256, HAL_PIXEL_FORMAT_RGBA_8888,
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GRALLOC_USAGE_SW_READ_OFTEN |
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GRALLOC_USAGE_SW_WRITE_OFTEN);
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status_t err = buffer->initCheck();
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if (err != NO_ERROR) {
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printf("%s\n", strerror(-err));
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return 0;
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}
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void* vaddr;
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buffer->lock(
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GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN,
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&vaddr);
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{
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StopWatch watch("memset");
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for (int i=0 ; i<10 ; i++)
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memset(vaddr, 0, size);
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}
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{
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StopWatch watch("memcpy baseline");
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for (int i=0 ; i<10 ; i++)
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memcpy(temp, temp2, size);
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}
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{
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StopWatch watch("memcpy from gralloc");
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for (int i=0 ; i<10 ; i++)
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memcpy(temp, vaddr, size);
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}
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{
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StopWatch watch("memcpy into gralloc");
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for (int i=0 ; i<10 ; i++)
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memcpy(vaddr, temp, size);
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}
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{
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StopWatch watch("lamecpy baseline");
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for (int i=0 ; i<10 ; i++)
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lamecpy(temp, temp2, size);
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}
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{
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StopWatch watch("lamecpy from gralloc");
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for (int i=0 ; i<10 ; i++)
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lamecpy(temp, vaddr, size);
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}
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{
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StopWatch watch("lamecpy into gralloc");
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for (int i=0 ; i<10 ; i++)
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lamecpy(vaddr, temp, size);
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}
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buffer->unlock();
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return 0;
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}
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