SoftwareRenderer.cpp revision 89e7fff6a5d7410815f42b4a55958a59d4463180
1/* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define LOG_TAG "SoftwareRenderer" 18#include <utils/Log.h> 19 20#include "../include/SoftwareRenderer.h" 21 22#include <binder/MemoryHeapBase.h> 23#include <binder/MemoryHeapPmem.h> 24#include <media/stagefright/MediaDebug.h> 25#include <ui/ISurface.h> 26 27namespace android { 28 29SoftwareRenderer::SoftwareRenderer( 30 OMX_COLOR_FORMATTYPE colorFormat, 31 const sp<ISurface> &surface, 32 size_t displayWidth, size_t displayHeight, 33 size_t decodedWidth, size_t decodedHeight) 34 : mColorFormat(colorFormat), 35 mConverter(colorFormat, OMX_COLOR_Format16bitRGB565), 36 mISurface(surface), 37 mDisplayWidth(displayWidth), 38 mDisplayHeight(displayHeight), 39 mDecodedWidth(decodedWidth), 40 mDecodedHeight(decodedHeight), 41 mFrameSize(mDecodedWidth * mDecodedHeight * 2), // RGB565 42 mIndex(0) { 43 // TODO: How do I allocate physical memory on Droid? 44 mMemoryHeap = new MemoryHeapBase("/dev/pmem_adsp", 2 * mFrameSize); 45 if (mMemoryHeap->heapID() < 0) { 46 LOGI("Creating physical memory heap failed, reverting to regular heap."); 47 mMemoryHeap = new MemoryHeapBase(2 * mFrameSize); 48 } else { 49 mMemoryHeap = new MemoryHeapPmem(mMemoryHeap); 50 } 51 52 CHECK(mISurface.get() != NULL); 53 CHECK(mDecodedWidth > 0); 54 CHECK(mDecodedHeight > 0); 55 CHECK(mMemoryHeap->heapID() >= 0); 56 CHECK(mConverter.isValid()); 57 58 ISurface::BufferHeap bufferHeap( 59 mDisplayWidth, mDisplayHeight, 60 mDecodedWidth, mDecodedHeight, 61 PIXEL_FORMAT_RGB_565, 62 mMemoryHeap); 63 64 status_t err = mISurface->registerBuffers(bufferHeap); 65 CHECK_EQ(err, OK); 66} 67 68SoftwareRenderer::~SoftwareRenderer() { 69 mISurface->unregisterBuffers(); 70} 71 72void SoftwareRenderer::render( 73 const void *data, size_t size, void *platformPrivate) { 74 size_t offset = mIndex * mFrameSize; 75 void *dst = (uint8_t *)mMemoryHeap->getBase() + offset; 76 77 mConverter.convert( 78 mDecodedWidth, mDecodedHeight, 79 data, 0, dst, 2 * mDecodedWidth); 80 81 mISurface->postBuffer(offset); 82 mIndex = 1 - mIndex; 83} 84 85} // namespace android 86