replicant-frameworks_native/libs/surfaceflinger/LayerBuffer.cpp
Mathias Agopian c5e181f8b3 fix [2315900] Monochrome camera preview screen after launching camera
this was introduced by a recent change. when we try to figure out the size of
the yuv->rgb temporary buffer, the output resolution has not been computed yet
and an invalid buffer size is used. most of the time the allocation fails
and the system reverts to "standard" GL will uses onle the Y plane.

the allocation of the temporary buffer is moved to onDraw(), the first
time it is called, by that time, the window is positioned properly.
2009-12-09 15:26:29 -08:00

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20 KiB
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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdlib.h>
#include <stdint.h>
#include <math.h>
#include <sys/types.h>
#include <utils/Errors.h>
#include <utils/Log.h>
#include <utils/StopWatch.h>
#include <ui/GraphicBuffer.h>
#include <ui/PixelFormat.h>
#include <ui/FramebufferNativeWindow.h>
#include <ui/Rect.h>
#include <ui/Region.h>
#include <hardware/copybit.h>
#include "LayerBuffer.h"
#include "SurfaceFlinger.h"
#include "DisplayHardware/DisplayHardware.h"
namespace android {
// ---------------------------------------------------------------------------
const uint32_t LayerBuffer::typeInfo = LayerBaseClient::typeInfo | 0x20;
const char* const LayerBuffer::typeID = "LayerBuffer";
gralloc_module_t const* LayerBuffer::sGrallocModule = 0;
// ---------------------------------------------------------------------------
LayerBuffer::LayerBuffer(SurfaceFlinger* flinger, DisplayID display,
const sp<Client>& client, int32_t i)
: LayerBaseClient(flinger, display, client, i),
mNeedsBlending(false), mBlitEngine(0)
{
}
LayerBuffer::~LayerBuffer()
{
if (mBlitEngine) {
copybit_close(mBlitEngine);
}
}
void LayerBuffer::onFirstRef()
{
LayerBaseClient::onFirstRef();
mSurface = new SurfaceLayerBuffer(mFlinger, clientIndex(),
const_cast<LayerBuffer *>(this));
hw_module_t const* module = (hw_module_t const*)sGrallocModule;
if (!module) {
// NOTE: technically there is a race here, but it shouldn't
// cause any problem since hw_get_module() always returns
// the same value.
if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module) == 0) {
sGrallocModule = (gralloc_module_t const *)module;
}
}
if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &module) == 0) {
copybit_open(module, &mBlitEngine);
}
}
sp<LayerBaseClient::Surface> LayerBuffer::createSurface() const
{
return mSurface;
}
status_t LayerBuffer::ditch()
{
mSurface.clear();
return NO_ERROR;
}
bool LayerBuffer::needsBlending() const {
return mNeedsBlending;
}
void LayerBuffer::setNeedsBlending(bool blending) {
mNeedsBlending = blending;
}
void LayerBuffer::postBuffer(ssize_t offset)
{
sp<Source> source(getSource());
if (source != 0)
source->postBuffer(offset);
}
void LayerBuffer::unregisterBuffers()
{
sp<Source> source(clearSource());
if (source != 0)
source->unregisterBuffers();
}
uint32_t LayerBuffer::doTransaction(uint32_t flags)
{
sp<Source> source(getSource());
if (source != 0)
source->onTransaction(flags);
uint32_t res = LayerBase::doTransaction(flags);
// we always want filtering for these surfaces
mUseLinearFiltering = !(mFlags & DisplayHardware::SLOW_CONFIG);
return res;
}
void LayerBuffer::unlockPageFlip(const Transform& planeTransform,
Region& outDirtyRegion)
{
// this code-path must be as tight as possible, it's called each time
// the screen is composited.
sp<Source> source(getSource());
if (source != 0)
source->onVisibilityResolved(planeTransform);
LayerBase::unlockPageFlip(planeTransform, outDirtyRegion);
}
void LayerBuffer::onDraw(const Region& clip) const
{
sp<Source> source(getSource());
if (LIKELY(source != 0)) {
source->onDraw(clip);
} else {
clearWithOpenGL(clip);
}
}
bool LayerBuffer::transformed() const
{
sp<Source> source(getSource());
if (LIKELY(source != 0))
return source->transformed();
return false;
}
void LayerBuffer::serverDestroy()
{
sp<Source> source(clearSource());
if (source != 0) {
source->destroy();
}
}
/**
* This creates a "buffer" source for this surface
*/
status_t LayerBuffer::registerBuffers(const ISurface::BufferHeap& buffers)
{
Mutex::Autolock _l(mLock);
if (mSource != 0)
return INVALID_OPERATION;
sp<BufferSource> source = new BufferSource(*this, buffers);
status_t result = source->getStatus();
if (result == NO_ERROR) {
mSource = source;
}
return result;
}
/**
* This creates an "overlay" source for this surface
*/
sp<OverlayRef> LayerBuffer::createOverlay(uint32_t w, uint32_t h, int32_t f)
{
sp<OverlayRef> result;
Mutex::Autolock _l(mLock);
if (mSource != 0)
return result;
sp<OverlaySource> source = new OverlaySource(*this, &result, w, h, f);
if (result != 0) {
mSource = source;
}
return result;
}
sp<LayerBuffer::Source> LayerBuffer::getSource() const {
Mutex::Autolock _l(mLock);
return mSource;
}
sp<LayerBuffer::Source> LayerBuffer::clearSource() {
sp<Source> source;
Mutex::Autolock _l(mLock);
source = mSource;
mSource.clear();
return source;
}
// ============================================================================
// LayerBuffer::SurfaceLayerBuffer
// ============================================================================
LayerBuffer::SurfaceLayerBuffer::SurfaceLayerBuffer(const sp<SurfaceFlinger>& flinger,
SurfaceID id, const sp<LayerBuffer>& owner)
: LayerBaseClient::Surface(flinger, id, owner->getIdentity(), owner)
{
}
LayerBuffer::SurfaceLayerBuffer::~SurfaceLayerBuffer()
{
unregisterBuffers();
}
status_t LayerBuffer::SurfaceLayerBuffer::registerBuffers(
const ISurface::BufferHeap& buffers)
{
sp<LayerBuffer> owner(getOwner());
if (owner != 0)
return owner->registerBuffers(buffers);
return NO_INIT;
}
void LayerBuffer::SurfaceLayerBuffer::postBuffer(ssize_t offset)
{
sp<LayerBuffer> owner(getOwner());
if (owner != 0)
owner->postBuffer(offset);
}
void LayerBuffer::SurfaceLayerBuffer::unregisterBuffers()
{
sp<LayerBuffer> owner(getOwner());
if (owner != 0)
owner->unregisterBuffers();
}
sp<OverlayRef> LayerBuffer::SurfaceLayerBuffer::createOverlay(
uint32_t w, uint32_t h, int32_t format) {
sp<OverlayRef> result;
sp<LayerBuffer> owner(getOwner());
if (owner != 0)
result = owner->createOverlay(w, h, format);
return result;
}
// ============================================================================
// LayerBuffer::Buffer
// ============================================================================
LayerBuffer::Buffer::Buffer(const ISurface::BufferHeap& buffers, ssize_t offset)
: mBufferHeap(buffers)
{
NativeBuffer& src(mNativeBuffer);
src.crop.l = 0;
src.crop.t = 0;
src.crop.r = buffers.w;
src.crop.b = buffers.h;
src.img.w = buffers.hor_stride ?: buffers.w;
src.img.h = buffers.ver_stride ?: buffers.h;
src.img.format = buffers.format;
src.img.base = (void*)(intptr_t(buffers.heap->base()) + offset);
src.img.handle = 0;
gralloc_module_t const * module = LayerBuffer::getGrallocModule();
if (module && module->perform) {
int err = module->perform(module,
GRALLOC_MODULE_PERFORM_CREATE_HANDLE_FROM_BUFFER,
buffers.heap->heapID(), buffers.heap->getSize(),
offset, buffers.heap->base(),
&src.img.handle);
LOGE_IF(err, "CREATE_HANDLE_FROM_BUFFER (heapId=%d, size=%d, "
"offset=%ld, base=%p) failed (%s)",
buffers.heap->heapID(), buffers.heap->getSize(),
offset, buffers.heap->base(), strerror(-err));
}
}
LayerBuffer::Buffer::~Buffer()
{
NativeBuffer& src(mNativeBuffer);
if (src.img.handle) {
native_handle_delete(src.img.handle);
}
}
// ============================================================================
// LayerBuffer::Source
// LayerBuffer::BufferSource
// LayerBuffer::OverlaySource
// ============================================================================
LayerBuffer::Source::Source(LayerBuffer& layer)
: mLayer(layer)
{
}
LayerBuffer::Source::~Source() {
}
void LayerBuffer::Source::onDraw(const Region& clip) const {
}
void LayerBuffer::Source::onTransaction(uint32_t flags) {
}
void LayerBuffer::Source::onVisibilityResolved(
const Transform& planeTransform) {
}
void LayerBuffer::Source::postBuffer(ssize_t offset) {
}
void LayerBuffer::Source::unregisterBuffers() {
}
bool LayerBuffer::Source::transformed() const {
return mLayer.mTransformed;
}
// ---------------------------------------------------------------------------
LayerBuffer::BufferSource::BufferSource(LayerBuffer& layer,
const ISurface::BufferHeap& buffers)
: Source(layer), mStatus(NO_ERROR), mBufferSize(0)
{
if (buffers.heap == NULL) {
// this is allowed, but in this case, it is illegal to receive
// postBuffer(). The surface just erases the framebuffer with
// fully transparent pixels.
mBufferHeap = buffers;
mLayer.setNeedsBlending(false);
return;
}
status_t err = (buffers.heap->heapID() >= 0) ? NO_ERROR : NO_INIT;
if (err != NO_ERROR) {
LOGE("LayerBuffer::BufferSource: invalid heap (%s)", strerror(err));
mStatus = err;
return;
}
PixelFormatInfo info;
err = getPixelFormatInfo(buffers.format, &info);
if (err != NO_ERROR) {
LOGE("LayerBuffer::BufferSource: invalid format %d (%s)",
buffers.format, strerror(err));
mStatus = err;
return;
}
if (buffers.hor_stride<0 || buffers.ver_stride<0) {
LOGE("LayerBuffer::BufferSource: invalid parameters "
"(w=%d, h=%d, xs=%d, ys=%d)",
buffers.w, buffers.h, buffers.hor_stride, buffers.ver_stride);
mStatus = BAD_VALUE;
return;
}
mBufferHeap = buffers;
mLayer.setNeedsBlending((info.h_alpha - info.l_alpha) > 0);
mBufferSize = info.getScanlineSize(buffers.hor_stride)*buffers.ver_stride;
mLayer.forceVisibilityTransaction();
}
LayerBuffer::BufferSource::~BufferSource()
{
if (mTexture.name != -1U) {
glDeleteTextures(1, &mTexture.name);
}
if (mTexture.image != EGL_NO_IMAGE_KHR) {
EGLDisplay dpy(mLayer.mFlinger->graphicPlane(0).getEGLDisplay());
eglDestroyImageKHR(dpy, mTexture.image);
}
}
void LayerBuffer::BufferSource::postBuffer(ssize_t offset)
{
ISurface::BufferHeap buffers;
{ // scope for the lock
Mutex::Autolock _l(mBufferSourceLock);
buffers = mBufferHeap;
if (buffers.heap != 0) {
const size_t memorySize = buffers.heap->getSize();
if ((size_t(offset) + mBufferSize) > memorySize) {
LOGE("LayerBuffer::BufferSource::postBuffer() "
"invalid buffer (offset=%d, size=%d, heap-size=%d",
int(offset), int(mBufferSize), int(memorySize));
return;
}
}
}
sp<Buffer> buffer;
if (buffers.heap != 0) {
buffer = new LayerBuffer::Buffer(buffers, offset);
if (buffer->getStatus() != NO_ERROR)
buffer.clear();
setBuffer(buffer);
mLayer.invalidate();
}
}
void LayerBuffer::BufferSource::unregisterBuffers()
{
Mutex::Autolock _l(mBufferSourceLock);
mBufferHeap.heap.clear();
mBuffer.clear();
mLayer.invalidate();
}
sp<LayerBuffer::Buffer> LayerBuffer::BufferSource::getBuffer() const
{
Mutex::Autolock _l(mBufferSourceLock);
return mBuffer;
}
void LayerBuffer::BufferSource::setBuffer(const sp<LayerBuffer::Buffer>& buffer)
{
Mutex::Autolock _l(mBufferSourceLock);
mBuffer = buffer;
}
bool LayerBuffer::BufferSource::transformed() const
{
return mBufferHeap.transform ? true : Source::transformed();
}
void LayerBuffer::BufferSource::onDraw(const Region& clip) const
{
sp<Buffer> ourBuffer(getBuffer());
if (UNLIKELY(ourBuffer == 0)) {
// nothing to do, we don't have a buffer
mLayer.clearWithOpenGL(clip);
return;
}
status_t err = NO_ERROR;
NativeBuffer src(ourBuffer->getBuffer());
const Rect transformedBounds(mLayer.getTransformedBounds());
if (UNLIKELY(mTexture.name == -1LU)) {
mTexture.name = mLayer.createTexture();
}
#if defined(EGL_ANDROID_image_native_buffer)
if (mLayer.mFlags & DisplayHardware::DIRECT_TEXTURE) {
copybit_device_t* copybit = mLayer.mBlitEngine;
if (copybit) {
// create our EGLImageKHR the first time
err = initTempBuffer();
if (err == NO_ERROR) {
// NOTE: Assume the buffer is allocated with the proper USAGE flags
const NativeBuffer& dst(mTempBuffer);
region_iterator clip(Region(Rect(dst.crop.r, dst.crop.b)));
copybit->set_parameter(copybit, COPYBIT_TRANSFORM, 0);
copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 0xFF);
copybit->set_parameter(copybit, COPYBIT_DITHER, COPYBIT_ENABLE);
err = copybit->stretch(copybit, &dst.img, &src.img,
&dst.crop, &src.crop, &clip);
}
} else {
err = INVALID_OPERATION;
}
}
#endif
else {
err = INVALID_OPERATION;
}
if (err != NO_ERROR) {
// slower fallback
GGLSurface t;
t.version = sizeof(GGLSurface);
t.width = src.crop.r;
t.height = src.crop.b;
t.stride = src.img.w;
t.vstride= src.img.h;
t.format = src.img.format;
t.data = (GGLubyte*)src.img.base;
const Region dirty(Rect(t.width, t.height));
mLayer.loadTexture(&mTexture, dirty, t);
}
mTexture.transform = mBufferHeap.transform;
mLayer.drawWithOpenGL(clip, mTexture);
}
status_t LayerBuffer::BufferSource::initTempBuffer() const
{
// figure out the size we need now
const ISurface::BufferHeap& buffers(mBufferHeap);
uint32_t w = mLayer.mTransformedBounds.width();
uint32_t h = mLayer.mTransformedBounds.height();
if (buffers.w * h != buffers.h * w) {
int t = w; w = h; h = t;
}
if (mTexture.image != EGL_NO_IMAGE_KHR) {
// we have an EGLImage, make sure the needed size didn't change
if (w!=mTexture.width || h!= mTexture.height) {
// delete the EGLImage and texture
EGLDisplay dpy(mLayer.mFlinger->graphicPlane(0).getEGLDisplay());
glDeleteTextures(1, &mTexture.name);
eglDestroyImageKHR(dpy, mTexture.image);
Texture defaultTexture;
mTexture = defaultTexture;
mTempGraphicBuffer.clear();
} else {
// we're good, we have an EGLImageKHR and it's (still) the
// right size
return NO_ERROR;
}
}
// figure out if we need linear filtering
if (buffers.w * h == buffers.h * w) {
// same pixel area, don't use filtering
mLayer.mUseLinearFiltering = false;
}
// Allocate a temporary buffer and create the corresponding EGLImageKHR
status_t err;
mTempGraphicBuffer.clear();
mTempGraphicBuffer = new GraphicBuffer(
w, h, HAL_PIXEL_FORMAT_RGB_565,
GraphicBuffer::USAGE_HW_TEXTURE |
GraphicBuffer::USAGE_HW_2D);
err = mTempGraphicBuffer->initCheck();
if (err == NO_ERROR) {
NativeBuffer& dst(mTempBuffer);
dst.img.w = mTempGraphicBuffer->getStride();
dst.img.h = h;
dst.img.format = mTempGraphicBuffer->getPixelFormat();
dst.img.handle = (native_handle_t *)mTempGraphicBuffer->handle;
dst.img.base = 0;
dst.crop.l = 0;
dst.crop.t = 0;
dst.crop.r = w;
dst.crop.b = h;
err = mLayer.initializeEglImage(
mTempGraphicBuffer, &mTexture);
// once the EGLImage has been created (whether it fails
// or not) we don't need the graphic buffer reference
// anymore.
mTempGraphicBuffer.clear();
}
return err;
}
// ---------------------------------------------------------------------------
LayerBuffer::OverlaySource::OverlaySource(LayerBuffer& layer,
sp<OverlayRef>* overlayRef,
uint32_t w, uint32_t h, int32_t format)
: Source(layer), mVisibilityChanged(false),
mOverlay(0), mOverlayHandle(0), mOverlayDevice(0)
{
overlay_control_device_t* overlay_dev = mLayer.mFlinger->getOverlayEngine();
if (overlay_dev == NULL) {
// overlays not supported
return;
}
mOverlayDevice = overlay_dev;
overlay_t* overlay = overlay_dev->createOverlay(overlay_dev, w, h, format);
if (overlay == NULL) {
// couldn't create the overlay (no memory? no more overlays?)
return;
}
// enable dithering...
overlay_dev->setParameter(overlay_dev, overlay,
OVERLAY_DITHER, OVERLAY_ENABLE);
mOverlay = overlay;
mWidth = overlay->w;
mHeight = overlay->h;
mFormat = overlay->format;
mWidthStride = overlay->w_stride;
mHeightStride = overlay->h_stride;
mInitialized = false;
mOverlayHandle = overlay->getHandleRef(overlay);
sp<OverlayChannel> channel = new OverlayChannel( &layer );
*overlayRef = new OverlayRef(mOverlayHandle, channel,
mWidth, mHeight, mFormat, mWidthStride, mHeightStride);
mLayer.mFlinger->signalEvent();
}
LayerBuffer::OverlaySource::~OverlaySource()
{
if (mOverlay && mOverlayDevice) {
overlay_control_device_t* overlay_dev = mOverlayDevice;
overlay_dev->destroyOverlay(overlay_dev, mOverlay);
}
}
void LayerBuffer::OverlaySource::onDraw(const Region& clip) const
{
// this would be where the color-key would be set, should we need it.
GLclampx red = 0;
GLclampx green = 0;
GLclampx blue = 0;
mLayer.clearWithOpenGL(clip, red, green, blue, 0);
}
void LayerBuffer::OverlaySource::onTransaction(uint32_t flags)
{
const Layer::State& front(mLayer.drawingState());
const Layer::State& temp(mLayer.currentState());
if (temp.sequence != front.sequence) {
mVisibilityChanged = true;
}
}
void LayerBuffer::OverlaySource::onVisibilityResolved(
const Transform& planeTransform)
{
// this code-path must be as tight as possible, it's called each time
// the screen is composited.
if (UNLIKELY(mOverlay != 0)) {
if (mVisibilityChanged || !mInitialized) {
mVisibilityChanged = false;
mInitialized = true;
const Rect bounds(mLayer.getTransformedBounds());
int x = bounds.left;
int y = bounds.top;
int w = bounds.width();
int h = bounds.height();
// we need a lock here to protect "destroy"
Mutex::Autolock _l(mOverlaySourceLock);
if (mOverlay) {
overlay_control_device_t* overlay_dev = mOverlayDevice;
overlay_dev->setPosition(overlay_dev, mOverlay, x,y,w,h);
overlay_dev->setParameter(overlay_dev, mOverlay,
OVERLAY_TRANSFORM, mLayer.getOrientation());
overlay_dev->commit(overlay_dev, mOverlay);
}
}
}
}
void LayerBuffer::OverlaySource::destroy()
{
// we need a lock here to protect "onVisibilityResolved"
Mutex::Autolock _l(mOverlaySourceLock);
if (mOverlay && mOverlayDevice) {
overlay_control_device_t* overlay_dev = mOverlayDevice;
overlay_dev->destroyOverlay(overlay_dev, mOverlay);
mOverlay = 0;
}
}
// ---------------------------------------------------------------------------
}; // namespace android