зеркало из https://github.com/mozilla/gecko-dev.git
446 строки
14 KiB
C++
446 строки
14 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "GrallocImages.h"
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#include <stddef.h> // for size_t
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#include <stdint.h> // for int8_t, uint8_t, uint32_t, etc
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#include "nsDebug.h" // for NS_WARNING, NS_PRECONDITION
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#include "mozilla/layers/ImageBridgeChild.h"
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#include "mozilla/layers/GrallocTextureClient.h"
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#include "gfx2DGlue.h"
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#include "YCbCrUtils.h" // for YCbCr conversions
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#include <ColorConverter.h>
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#include <OMX_IVCommon.h>
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using namespace mozilla::ipc;
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using namespace android;
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#define ALIGN(x, align) ((x + align - 1) & ~(align - 1))
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namespace mozilla {
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namespace layers {
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uint32_t GrallocImage::sColorIdMap[] = {
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HAL_PIXEL_FORMAT_YCbCr_420_P, OMX_COLOR_FormatYUV420Planar,
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HAL_PIXEL_FORMAT_YCbCr_422_P, OMX_COLOR_FormatYUV422Planar,
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HAL_PIXEL_FORMAT_YCbCr_420_SP, OMX_COLOR_FormatYUV420SemiPlanar,
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HAL_PIXEL_FORMAT_YCrCb_420_SP, -1,
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HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO, -1,
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HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED, HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED,
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HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS, HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS,
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HAL_PIXEL_FORMAT_YV12, OMX_COLOR_FormatYUV420Planar,
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0, 0
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};
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struct GraphicBufferAutoUnlock {
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android::sp<GraphicBuffer> mGraphicBuffer;
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GraphicBufferAutoUnlock(android::sp<GraphicBuffer>& aGraphicBuffer)
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: mGraphicBuffer(aGraphicBuffer) { }
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~GraphicBufferAutoUnlock() { mGraphicBuffer->unlock(); }
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};
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GrallocImage::GrallocImage()
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: PlanarYCbCrImage(nullptr)
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{
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mFormat = ImageFormat::GRALLOC_PLANAR_YCBCR;
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}
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GrallocImage::~GrallocImage()
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{
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}
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void
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GrallocImage::SetData(const Data& aData)
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{
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MOZ_ASSERT(!mTextureClient, "TextureClient is already set");
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NS_PRECONDITION(aData.mYSize.width % 2 == 0, "Image should have even width");
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NS_PRECONDITION(aData.mYSize.height % 2 == 0, "Image should have even height");
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NS_PRECONDITION(aData.mYStride % 16 == 0, "Image should have stride of multiple of 16 pixels");
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mData = aData;
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mSize = aData.mPicSize;
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if (gfxPlatform::GetPlatform()->IsInGonkEmulator()) {
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// Emulator does not support HAL_PIXEL_FORMAT_YV12.
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return;
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}
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RefPtr<GrallocTextureClientOGL> textureClient =
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new GrallocTextureClientOGL(ImageBridgeChild::GetSingleton(),
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gfx::SurfaceFormat::UNKNOWN,
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gfx::BackendType::NONE);
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bool result =
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textureClient->AllocateGralloc(mData.mYSize,
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HAL_PIXEL_FORMAT_YV12,
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GraphicBuffer::USAGE_SW_READ_OFTEN |
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GraphicBuffer::USAGE_SW_WRITE_OFTEN |
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GraphicBuffer::USAGE_HW_TEXTURE);
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sp<GraphicBuffer> graphicBuffer = textureClient->GetGraphicBuffer();
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if (!result || !graphicBuffer.get()) {
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mTextureClient = nullptr;
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return;
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}
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mTextureClient = textureClient;
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void* vaddr;
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if (graphicBuffer->lock(GraphicBuffer::USAGE_SW_WRITE_OFTEN,
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&vaddr) != OK) {
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return;
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}
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uint8_t* yChannel = static_cast<uint8_t*>(vaddr);
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gfx::IntSize ySize = aData.mYSize;
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int32_t yStride = graphicBuffer->getStride();
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uint8_t* vChannel = yChannel + (yStride * ySize.height);
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gfx::IntSize uvSize = gfx::IntSize(ySize.width / 2,
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ySize.height / 2);
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// Align to 16 bytes boundary
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int32_t uvStride = ((yStride / 2) + 15) & ~0x0F;
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uint8_t* uChannel = vChannel + (uvStride * uvSize.height);
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// Memory outside of the image width may not writable. If the stride
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// equals to the image width then we can use only one copy.
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if (yStride == mData.mYStride &&
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yStride == ySize.width) {
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memcpy(yChannel, mData.mYChannel, yStride * ySize.height);
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} else {
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for (int i = 0; i < ySize.height; i++) {
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memcpy(yChannel + i * yStride,
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mData.mYChannel + i * mData.mYStride,
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ySize.width);
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}
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}
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if (uvStride == mData.mCbCrStride &&
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uvStride == uvSize.width) {
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memcpy(uChannel, mData.mCbChannel, uvStride * uvSize.height);
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memcpy(vChannel, mData.mCrChannel, uvStride * uvSize.height);
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} else {
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for (int i = 0; i < uvSize.height; i++) {
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memcpy(uChannel + i * uvStride,
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mData.mCbChannel + i * mData.mCbCrStride,
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uvSize.width);
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memcpy(vChannel + i * uvStride,
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mData.mCrChannel + i * mData.mCbCrStride,
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uvSize.width);
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}
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}
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graphicBuffer->unlock();
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}
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void GrallocImage::SetData(const GrallocData& aData)
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{
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mTextureClient = static_cast<GrallocTextureClientOGL*>(aData.mGraphicBuffer.get());
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mSize = aData.mPicSize;
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}
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/**
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* Converts YVU420 semi planar frames to RGB565, possibly taking different
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* stride values.
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* Needed because the Android ColorConverter class assumes that the Y and UV
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* channels have equal stride.
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*/
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static void
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ConvertYVU420SPToRGB565(void *aYData, uint32_t aYStride,
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void *aUData, void *aVData, uint32_t aUVStride,
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void *aOut,
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uint32_t aWidth, uint32_t aHeight)
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{
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uint8_t *y = (uint8_t*)aYData;
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bool isCbCr;
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int8_t *uv;
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if (aUData < aVData) {
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// The color format is YCbCr
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isCbCr = true;
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uv = (int8_t*)aUData;
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} else {
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// The color format is YCrCb
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isCbCr = false;
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uv = (int8_t*)aVData;
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}
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uint16_t *rgb = (uint16_t*)aOut;
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for (size_t i = 0; i < aHeight; i++) {
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for (size_t j = 0; j < aWidth; j++) {
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int8_t d, e;
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if (isCbCr) {
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d = uv[j & ~1] - 128;
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e = uv[j | 1] - 128;
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} else {
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d = uv[j | 1] - 128;
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e = uv[j & ~1] - 128;
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}
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// Constants taken from https://en.wikipedia.org/wiki/YUV
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int32_t r = (298 * y[j] + 409 * e + 128) >> 11;
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int32_t g = (298 * y[j] - 100 * d - 208 * e + 128) >> 10;
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int32_t b = (298 * y[j] + 516 * d + 128) >> 11;
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r = r > 0x1f ? 0x1f : r < 0 ? 0 : r;
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g = g > 0x3f ? 0x3f : g < 0 ? 0 : g;
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b = b > 0x1f ? 0x1f : b < 0 ? 0 : b;
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*rgb++ = (uint16_t)(r << 11 | g << 5 | b);
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}
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y += aYStride;
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if (i % 2) {
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uv += aUVStride;
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}
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}
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}
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/**
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* Converts the format of vendor-specific YVU420(planar and semi-planar)
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* with the help of GraphicBuffer::lockYCbCr. In this way, we can convert
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* the YUV color format without awaring actual definition/enumeration
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* of vendor formats.
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*/
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static status_t
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ConvertVendorYUVFormatToRGB565(android::sp<GraphicBuffer>& aBuffer,
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gfx::DataSourceSurface *aSurface,
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gfx::DataSourceSurface::MappedSurface *aMappedSurface)
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{
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status_t rv = BAD_VALUE;
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#if ANDROID_VERSION >= 18
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android_ycbcr ycbcr;
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// Check if the vendor provides explicit addresses of Y/Cb/Cr buffer from lockYCbCr
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rv = aBuffer->lockYCbCr(android::GraphicBuffer::USAGE_SW_READ_OFTEN, &ycbcr);
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if (rv != OK) {
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NS_WARNING("Couldn't lock graphic buffer using lockYCbCr()");
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return rv;
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}
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GraphicBufferAutoUnlock unlock(aBuffer);
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uint32_t width = aSurface->GetSize().width;
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uint32_t height = aSurface->GetSize().height;
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if (ycbcr.chroma_step == 2) {
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// From the system/core/include/system/graphics.h
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// @chroma_step is the distance in bytes from one chroma pixel value to
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// the next. This is 2 bytes for semiplanar (because chroma values are
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// interleaved and each chroma value is one byte) and 1 for planar.
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ConvertYVU420SPToRGB565(ycbcr.y, ycbcr.ystride,
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ycbcr.cb, ycbcr.cr, ycbcr.cstride,
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aMappedSurface->mData,
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width, height);
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} else {
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layers::PlanarYCbCrData ycbcrData;
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ycbcrData.mYChannel = static_cast<uint8_t*>(ycbcr.y);
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ycbcrData.mYStride = ycbcr.ystride;
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ycbcrData.mYSize = aSurface->GetSize();
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ycbcrData.mCbChannel = static_cast<uint8_t*>(ycbcr.cb);
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ycbcrData.mCrChannel = static_cast<uint8_t*>(ycbcr.cr);
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ycbcrData.mCbCrStride = ycbcr.cstride;
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ycbcrData.mCbCrSize = aSurface->GetSize() / 2;
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ycbcrData.mPicSize = aSurface->GetSize();
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gfx::ConvertYCbCrToRGB(ycbcrData,
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aSurface->GetFormat(),
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aSurface->GetSize(),
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aMappedSurface->mData,
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aMappedSurface->mStride);
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}
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#endif
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return rv;
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}
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static status_t
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ConvertOmxYUVFormatToRGB565(android::sp<GraphicBuffer>& aBuffer,
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gfx::DataSourceSurface *aSurface,
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gfx::DataSourceSurface::MappedSurface *aMappedSurface,
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const layers::PlanarYCbCrData& aYcbcrData,
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int aOmxFormat)
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{
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if (!aOmxFormat) {
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NS_WARNING("Unknown color format");
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return BAD_VALUE;
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}
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status_t rv;
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uint8_t *buffer;
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rv = aBuffer->lock(android::GraphicBuffer::USAGE_SW_READ_OFTEN,
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reinterpret_cast<void **>(&buffer));
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if (rv != OK) {
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NS_WARNING("Couldn't lock graphic buffer");
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return BAD_VALUE;
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}
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GraphicBufferAutoUnlock unlock(aBuffer);
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uint32_t format = aBuffer->getPixelFormat();
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uint32_t width = aSurface->GetSize().width;
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uint32_t height = aSurface->GetSize().height;
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if (format == GrallocImage::HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO) {
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// The Adreno hardware decoder aligns image dimensions to a multiple of 32,
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// so we have to account for that here
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uint32_t alignedWidth = ALIGN(width, 32);
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uint32_t alignedHeight = ALIGN(height, 32);
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uint32_t uvOffset = ALIGN(alignedHeight * alignedWidth, 4096);
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uint32_t uvStride = 2 * ALIGN(width / 2, 32);
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ConvertYVU420SPToRGB565(buffer, alignedWidth,
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buffer + uvOffset + 1,
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buffer + uvOffset,
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uvStride,
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aMappedSurface->mData,
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width, height);
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return OK;
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}
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if (format == HAL_PIXEL_FORMAT_YCrCb_420_SP) {
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uint32_t uvOffset = height * width;
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ConvertYVU420SPToRGB565(buffer, width,
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buffer + uvOffset + 1,
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buffer + uvOffset,
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width,
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aMappedSurface->mData,
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width, height);
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return OK;
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}
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if (format == HAL_PIXEL_FORMAT_YV12) {
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// Depend on platforms, it is possible for HW decoder to output YV12 format.
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// It means the mData won't be configured during the SetData API because the
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// yuv data has already stored in GraphicBuffer. Here we try to confgiure the
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// mData if it doesn't contain valid configuration.
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layers::PlanarYCbCrData ycbcrData = aYcbcrData;
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if (!ycbcrData.mYChannel) {
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ycbcrData.mYChannel = buffer;
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ycbcrData.mYSkip = 0;
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ycbcrData.mYStride = aBuffer->getStride();
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ycbcrData.mYSize = aSurface->GetSize();
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ycbcrData.mCbSkip = 0;
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ycbcrData.mCbCrSize = aSurface->GetSize() / 2;
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ycbcrData.mPicSize = aSurface->GetSize();
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ycbcrData.mCrChannel = buffer + ycbcrData.mYStride * ycbcrData.mYSize.height;
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ycbcrData.mCrSkip = 0;
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// Align to 16 bytes boundary
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ycbcrData.mCbCrStride = ((ycbcrData.mYStride / 2) + 15) & ~0x0F;
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ycbcrData.mCbChannel = ycbcrData.mCrChannel + (ycbcrData.mCbCrStride * ycbcrData.mCbCrSize.height);
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}
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gfx::ConvertYCbCrToRGB(ycbcrData,
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aSurface->GetFormat(),
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aSurface->GetSize(),
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aMappedSurface->mData,
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aMappedSurface->mStride);
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return OK;
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}
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android::ColorConverter colorConverter((OMX_COLOR_FORMATTYPE)aOmxFormat,
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OMX_COLOR_Format16bitRGB565);
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if (!colorConverter.isValid()) {
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NS_WARNING("Invalid color conversion");
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return BAD_VALUE;
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}
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uint32_t pixelStride = aMappedSurface->mStride/gfx::BytesPerPixel(gfx::SurfaceFormat::R5G6B5);
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rv = colorConverter.convert(buffer, width, height,
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0, 0, width - 1, height - 1 /* source crop */,
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aMappedSurface->mData, pixelStride, height,
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0, 0, width - 1, height - 1 /* dest crop */);
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if (rv) {
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NS_WARNING("OMX color conversion failed");
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return BAD_VALUE;
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}
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return OK;
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}
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TemporaryRef<gfx::SourceSurface>
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GrallocImage::GetAsSourceSurface()
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{
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if (!mTextureClient) {
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return nullptr;
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}
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android::sp<GraphicBuffer> graphicBuffer =
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mTextureClient->GetGraphicBuffer();
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RefPtr<gfx::DataSourceSurface> surface =
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gfx::Factory::CreateDataSourceSurface(GetSize(), gfx::SurfaceFormat::R5G6B5);
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if (NS_WARN_IF(!surface)) {
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return nullptr;
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}
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gfx::DataSourceSurface::MappedSurface mappedSurface;
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if (!surface->Map(gfx::DataSourceSurface::WRITE, &mappedSurface)) {
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NS_WARNING("Could not map DataSourceSurface");
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return nullptr;
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}
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int32_t rv;
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uint32_t omxFormat = 0;
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omxFormat = GrallocImage::GetOmxFormat(graphicBuffer->getPixelFormat());
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if (!omxFormat) {
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rv = ConvertVendorYUVFormatToRGB565(graphicBuffer, surface, &mappedSurface);
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surface->Unmap();
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if (rv != OK) {
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NS_WARNING("Unknown color format");
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return nullptr;
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}
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return surface;
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}
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rv = ConvertOmxYUVFormatToRGB565(graphicBuffer, surface, &mappedSurface, mData, omxFormat);
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surface->Unmap();
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if (rv != OK) {
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return nullptr;
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}
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return surface;
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}
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android::sp<android::GraphicBuffer>
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GrallocImage::GetGraphicBuffer() const
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{
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if (!mTextureClient) {
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return nullptr;
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}
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return mTextureClient->GetGraphicBuffer();
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}
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void*
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GrallocImage::GetNativeBuffer()
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{
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if (!mTextureClient) {
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return nullptr;
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}
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android::sp<android::GraphicBuffer> graphicBuffer =
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mTextureClient->GetGraphicBuffer();
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if (!graphicBuffer.get()) {
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return nullptr;
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}
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return graphicBuffer->getNativeBuffer();
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}
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TextureClient*
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GrallocImage::GetTextureClient(CompositableClient* aClient)
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{
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return mTextureClient;
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}
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} // namespace layers
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} // namespace mozilla
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