47ad361cee
There was an issue in Surface::lock where failure to lock a surface resulted in two bad things happening: - success was returned to the caller (it was apparently locked). - an uninitialised pointer was returned as the buffer. Change-Id: I8b0df81400e0fa0542a8bb993d76923ac96b686e
795 lines
24 KiB
C++
795 lines
24 KiB
C++
/*
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* Copyright (C) 2010 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 "SurfaceTextureClient"
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#define ATRACE_TAG ATRACE_TAG_GRAPHICS
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//#define LOG_NDEBUG 0
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#include <android/native_window.h>
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#include <utils/Log.h>
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#include <utils/Trace.h>
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#include <gui/ISurfaceComposer.h>
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#include <gui/SurfaceComposerClient.h>
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#include <gui/SurfaceTexture.h>
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#include <gui/SurfaceTextureClient.h>
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#include <private/gui/ComposerService.h>
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namespace android {
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SurfaceTextureClient::SurfaceTextureClient(
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const sp<ISurfaceTexture>& surfaceTexture)
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{
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SurfaceTextureClient::init();
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SurfaceTextureClient::setISurfaceTexture(surfaceTexture);
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}
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// see SurfaceTextureClient.h
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SurfaceTextureClient::SurfaceTextureClient(const
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sp<SurfaceTexture>& surfaceTexture)
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{
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SurfaceTextureClient::init();
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SurfaceTextureClient::setISurfaceTexture(surfaceTexture->getBufferQueue());
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}
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SurfaceTextureClient::SurfaceTextureClient() {
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SurfaceTextureClient::init();
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}
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SurfaceTextureClient::~SurfaceTextureClient() {
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if (mConnectedToCpu) {
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SurfaceTextureClient::disconnect(NATIVE_WINDOW_API_CPU);
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}
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}
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void SurfaceTextureClient::init() {
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// Initialize the ANativeWindow function pointers.
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ANativeWindow::setSwapInterval = hook_setSwapInterval;
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ANativeWindow::dequeueBuffer = hook_dequeueBuffer;
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ANativeWindow::cancelBuffer = hook_cancelBuffer;
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ANativeWindow::lockBuffer = hook_lockBuffer;
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ANativeWindow::queueBuffer = hook_queueBuffer;
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ANativeWindow::query = hook_query;
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ANativeWindow::perform = hook_perform;
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const_cast<int&>(ANativeWindow::minSwapInterval) = 0;
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const_cast<int&>(ANativeWindow::maxSwapInterval) = 1;
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mReqWidth = 0;
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mReqHeight = 0;
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mReqFormat = 0;
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mReqUsage = 0;
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mTimestamp = NATIVE_WINDOW_TIMESTAMP_AUTO;
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mCrop.clear();
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mScalingMode = NATIVE_WINDOW_SCALING_MODE_FREEZE;
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mTransform = 0;
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mDefaultWidth = 0;
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mDefaultHeight = 0;
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mUserWidth = 0;
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mUserHeight = 0;
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mTransformHint = 0;
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mConsumerRunningBehind = false;
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mConnectedToCpu = false;
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}
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void SurfaceTextureClient::setISurfaceTexture(
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const sp<ISurfaceTexture>& surfaceTexture)
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{
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mSurfaceTexture = surfaceTexture;
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}
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sp<ISurfaceTexture> SurfaceTextureClient::getISurfaceTexture() const {
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return mSurfaceTexture;
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}
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int SurfaceTextureClient::hook_setSwapInterval(ANativeWindow* window, int interval) {
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SurfaceTextureClient* c = getSelf(window);
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return c->setSwapInterval(interval);
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}
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int SurfaceTextureClient::hook_dequeueBuffer(ANativeWindow* window,
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ANativeWindowBuffer** buffer) {
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SurfaceTextureClient* c = getSelf(window);
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return c->dequeueBuffer(buffer);
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}
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int SurfaceTextureClient::hook_cancelBuffer(ANativeWindow* window,
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ANativeWindowBuffer* buffer) {
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SurfaceTextureClient* c = getSelf(window);
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return c->cancelBuffer(buffer);
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}
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int SurfaceTextureClient::hook_lockBuffer(ANativeWindow* window,
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ANativeWindowBuffer* buffer) {
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SurfaceTextureClient* c = getSelf(window);
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return c->lockBuffer(buffer);
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}
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int SurfaceTextureClient::hook_queueBuffer(ANativeWindow* window,
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ANativeWindowBuffer* buffer) {
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SurfaceTextureClient* c = getSelf(window);
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return c->queueBuffer(buffer);
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}
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int SurfaceTextureClient::hook_query(const ANativeWindow* window,
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int what, int* value) {
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const SurfaceTextureClient* c = getSelf(window);
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return c->query(what, value);
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}
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int SurfaceTextureClient::hook_perform(ANativeWindow* window, int operation, ...) {
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va_list args;
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va_start(args, operation);
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SurfaceTextureClient* c = getSelf(window);
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return c->perform(operation, args);
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}
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int SurfaceTextureClient::setSwapInterval(int interval) {
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ATRACE_CALL();
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// EGL specification states:
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// interval is silently clamped to minimum and maximum implementation
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// dependent values before being stored.
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// Although we don't have to, we apply the same logic here.
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if (interval < minSwapInterval)
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interval = minSwapInterval;
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if (interval > maxSwapInterval)
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interval = maxSwapInterval;
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status_t res = mSurfaceTexture->setSynchronousMode(interval ? true : false);
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return res;
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}
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int SurfaceTextureClient::dequeueBuffer(android_native_buffer_t** buffer) {
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ATRACE_CALL();
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ALOGV("SurfaceTextureClient::dequeueBuffer");
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Mutex::Autolock lock(mMutex);
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int buf = -1;
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int reqW = mReqWidth ? mReqWidth : mUserWidth;
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int reqH = mReqHeight ? mReqHeight : mUserHeight;
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status_t result = mSurfaceTexture->dequeueBuffer(&buf, reqW, reqH,
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mReqFormat, mReqUsage);
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if (result < 0) {
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ALOGV("dequeueBuffer: ISurfaceTexture::dequeueBuffer(%d, %d, %d, %d)"
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"failed: %d", mReqWidth, mReqHeight, mReqFormat, mReqUsage,
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result);
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return result;
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}
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sp<GraphicBuffer>& gbuf(mSlots[buf].buffer);
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if (result & ISurfaceTexture::RELEASE_ALL_BUFFERS) {
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freeAllBuffers();
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}
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if ((result & ISurfaceTexture::BUFFER_NEEDS_REALLOCATION) || gbuf == 0) {
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result = mSurfaceTexture->requestBuffer(buf, &gbuf);
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if (result != NO_ERROR) {
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ALOGE("dequeueBuffer: ISurfaceTexture::requestBuffer failed: %d",
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result);
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return result;
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}
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}
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*buffer = gbuf.get();
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return OK;
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}
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int SurfaceTextureClient::cancelBuffer(android_native_buffer_t* buffer) {
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ATRACE_CALL();
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ALOGV("SurfaceTextureClient::cancelBuffer");
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Mutex::Autolock lock(mMutex);
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int i = getSlotFromBufferLocked(buffer);
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if (i < 0) {
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return i;
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}
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mSurfaceTexture->cancelBuffer(i);
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return OK;
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}
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int SurfaceTextureClient::getSlotFromBufferLocked(
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android_native_buffer_t* buffer) const {
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bool dumpedState = false;
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for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
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if (mSlots[i].buffer != NULL &&
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mSlots[i].buffer->handle == buffer->handle) {
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return i;
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}
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}
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ALOGE("getSlotFromBufferLocked: unknown buffer: %p", buffer->handle);
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return BAD_VALUE;
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}
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int SurfaceTextureClient::lockBuffer(android_native_buffer_t* buffer) {
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ALOGV("SurfaceTextureClient::lockBuffer");
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Mutex::Autolock lock(mMutex);
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return OK;
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}
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int SurfaceTextureClient::queueBuffer(android_native_buffer_t* buffer) {
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ATRACE_CALL();
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ALOGV("SurfaceTextureClient::queueBuffer");
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Mutex::Autolock lock(mMutex);
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int64_t timestamp;
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if (mTimestamp == NATIVE_WINDOW_TIMESTAMP_AUTO) {
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timestamp = systemTime(SYSTEM_TIME_MONOTONIC);
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ALOGV("SurfaceTextureClient::queueBuffer making up timestamp: %.2f ms",
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timestamp / 1000000.f);
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} else {
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timestamp = mTimestamp;
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}
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int i = getSlotFromBufferLocked(buffer);
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if (i < 0) {
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return i;
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}
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// Make sure the crop rectangle is entirely inside the buffer.
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Rect crop;
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mCrop.intersect(Rect(buffer->width, buffer->height), &crop);
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ISurfaceTexture::QueueBufferOutput output;
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ISurfaceTexture::QueueBufferInput input(timestamp, crop, mScalingMode,
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mTransform);
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status_t err = mSurfaceTexture->queueBuffer(i, input, &output);
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if (err != OK) {
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ALOGE("queueBuffer: error queuing buffer to SurfaceTexture, %d", err);
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}
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uint32_t numPendingBuffers = 0;
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output.deflate(&mDefaultWidth, &mDefaultHeight, &mTransformHint,
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&numPendingBuffers);
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mConsumerRunningBehind = (numPendingBuffers >= 2);
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return err;
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}
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int SurfaceTextureClient::query(int what, int* value) const {
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ATRACE_CALL();
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ALOGV("SurfaceTextureClient::query");
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{ // scope for the lock
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Mutex::Autolock lock(mMutex);
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switch (what) {
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case NATIVE_WINDOW_FORMAT:
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if (mReqFormat) {
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*value = mReqFormat;
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return NO_ERROR;
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}
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break;
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case NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER: {
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sp<ISurfaceComposer> composer(
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ComposerService::getComposerService());
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if (composer->authenticateSurfaceTexture(mSurfaceTexture)) {
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*value = 1;
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} else {
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*value = 0;
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}
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return NO_ERROR;
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}
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case NATIVE_WINDOW_CONCRETE_TYPE:
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*value = NATIVE_WINDOW_SURFACE_TEXTURE_CLIENT;
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return NO_ERROR;
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case NATIVE_WINDOW_DEFAULT_WIDTH:
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*value = mUserWidth ? mUserWidth : mDefaultWidth;
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return NO_ERROR;
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case NATIVE_WINDOW_DEFAULT_HEIGHT:
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*value = mUserHeight ? mUserHeight : mDefaultHeight;
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return NO_ERROR;
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case NATIVE_WINDOW_TRANSFORM_HINT:
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*value = mTransformHint;
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return NO_ERROR;
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case NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND: {
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status_t err = NO_ERROR;
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if (!mConsumerRunningBehind) {
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*value = 0;
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} else {
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err = mSurfaceTexture->query(what, value);
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if (err == NO_ERROR) {
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mConsumerRunningBehind = *value;
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}
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}
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return err;
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}
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}
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}
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return mSurfaceTexture->query(what, value);
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}
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int SurfaceTextureClient::perform(int operation, va_list args)
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{
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int res = NO_ERROR;
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switch (operation) {
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case NATIVE_WINDOW_CONNECT:
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// deprecated. must return NO_ERROR.
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break;
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case NATIVE_WINDOW_DISCONNECT:
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// deprecated. must return NO_ERROR.
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break;
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case NATIVE_WINDOW_SET_USAGE:
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res = dispatchSetUsage(args);
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break;
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case NATIVE_WINDOW_SET_CROP:
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res = dispatchSetCrop(args);
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break;
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case NATIVE_WINDOW_SET_BUFFER_COUNT:
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res = dispatchSetBufferCount(args);
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break;
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case NATIVE_WINDOW_SET_BUFFERS_GEOMETRY:
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res = dispatchSetBuffersGeometry(args);
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break;
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case NATIVE_WINDOW_SET_BUFFERS_TRANSFORM:
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res = dispatchSetBuffersTransform(args);
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break;
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case NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP:
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res = dispatchSetBuffersTimestamp(args);
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break;
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case NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS:
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res = dispatchSetBuffersDimensions(args);
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break;
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case NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS:
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res = dispatchSetBuffersUserDimensions(args);
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break;
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case NATIVE_WINDOW_SET_BUFFERS_FORMAT:
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res = dispatchSetBuffersFormat(args);
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break;
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case NATIVE_WINDOW_LOCK:
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res = dispatchLock(args);
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break;
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case NATIVE_WINDOW_UNLOCK_AND_POST:
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res = dispatchUnlockAndPost(args);
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break;
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case NATIVE_WINDOW_SET_SCALING_MODE:
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res = dispatchSetScalingMode(args);
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break;
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case NATIVE_WINDOW_API_CONNECT:
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res = dispatchConnect(args);
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break;
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case NATIVE_WINDOW_API_DISCONNECT:
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res = dispatchDisconnect(args);
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break;
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default:
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res = NAME_NOT_FOUND;
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break;
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}
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return res;
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}
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int SurfaceTextureClient::dispatchConnect(va_list args) {
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int api = va_arg(args, int);
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return connect(api);
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}
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int SurfaceTextureClient::dispatchDisconnect(va_list args) {
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int api = va_arg(args, int);
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return disconnect(api);
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}
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int SurfaceTextureClient::dispatchSetUsage(va_list args) {
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int usage = va_arg(args, int);
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return setUsage(usage);
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}
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int SurfaceTextureClient::dispatchSetCrop(va_list args) {
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android_native_rect_t const* rect = va_arg(args, android_native_rect_t*);
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return setCrop(reinterpret_cast<Rect const*>(rect));
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}
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int SurfaceTextureClient::dispatchSetBufferCount(va_list args) {
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size_t bufferCount = va_arg(args, size_t);
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return setBufferCount(bufferCount);
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}
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int SurfaceTextureClient::dispatchSetBuffersGeometry(va_list args) {
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int w = va_arg(args, int);
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int h = va_arg(args, int);
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int f = va_arg(args, int);
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int err = setBuffersDimensions(w, h);
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if (err != 0) {
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return err;
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}
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return setBuffersFormat(f);
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}
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int SurfaceTextureClient::dispatchSetBuffersDimensions(va_list args) {
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int w = va_arg(args, int);
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int h = va_arg(args, int);
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return setBuffersDimensions(w, h);
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}
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int SurfaceTextureClient::dispatchSetBuffersUserDimensions(va_list args) {
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int w = va_arg(args, int);
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int h = va_arg(args, int);
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return setBuffersUserDimensions(w, h);
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}
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int SurfaceTextureClient::dispatchSetBuffersFormat(va_list args) {
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int f = va_arg(args, int);
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return setBuffersFormat(f);
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}
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int SurfaceTextureClient::dispatchSetScalingMode(va_list args) {
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int m = va_arg(args, int);
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return setScalingMode(m);
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}
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int SurfaceTextureClient::dispatchSetBuffersTransform(va_list args) {
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int transform = va_arg(args, int);
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return setBuffersTransform(transform);
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}
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int SurfaceTextureClient::dispatchSetBuffersTimestamp(va_list args) {
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int64_t timestamp = va_arg(args, int64_t);
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return setBuffersTimestamp(timestamp);
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}
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int SurfaceTextureClient::dispatchLock(va_list args) {
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ANativeWindow_Buffer* outBuffer = va_arg(args, ANativeWindow_Buffer*);
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ARect* inOutDirtyBounds = va_arg(args, ARect*);
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return lock(outBuffer, inOutDirtyBounds);
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}
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int SurfaceTextureClient::dispatchUnlockAndPost(va_list args) {
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return unlockAndPost();
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}
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int SurfaceTextureClient::connect(int api) {
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ATRACE_CALL();
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ALOGV("SurfaceTextureClient::connect");
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Mutex::Autolock lock(mMutex);
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ISurfaceTexture::QueueBufferOutput output;
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int err = mSurfaceTexture->connect(api, &output);
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if (err == NO_ERROR) {
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uint32_t numPendingBuffers = 0;
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output.deflate(&mDefaultWidth, &mDefaultHeight, &mTransformHint,
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&numPendingBuffers);
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mConsumerRunningBehind = (numPendingBuffers >= 2);
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}
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if (!err && api == NATIVE_WINDOW_API_CPU) {
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mConnectedToCpu = true;
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}
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return err;
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}
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int SurfaceTextureClient::disconnect(int api) {
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ATRACE_CALL();
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ALOGV("SurfaceTextureClient::disconnect");
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Mutex::Autolock lock(mMutex);
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freeAllBuffers();
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int err = mSurfaceTexture->disconnect(api);
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if (!err) {
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mReqFormat = 0;
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mReqWidth = 0;
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mReqHeight = 0;
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mReqUsage = 0;
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mCrop.clear();
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mScalingMode = NATIVE_WINDOW_SCALING_MODE_FREEZE;
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mTransform = 0;
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if (api == NATIVE_WINDOW_API_CPU) {
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mConnectedToCpu = false;
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}
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}
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return err;
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}
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int SurfaceTextureClient::setUsage(uint32_t reqUsage)
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{
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ALOGV("SurfaceTextureClient::setUsage");
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Mutex::Autolock lock(mMutex);
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mReqUsage = reqUsage;
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return OK;
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}
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int SurfaceTextureClient::setCrop(Rect const* rect)
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{
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ATRACE_CALL();
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Rect realRect;
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if (rect == NULL || rect->isEmpty()) {
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realRect.clear();
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} else {
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realRect = *rect;
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}
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ALOGV("SurfaceTextureClient::setCrop rect=[%d %d %d %d]",
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realRect.left, realRect.top, realRect.right, realRect.bottom);
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Mutex::Autolock lock(mMutex);
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mCrop = realRect;
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return NO_ERROR;
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}
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int SurfaceTextureClient::setBufferCount(int bufferCount)
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{
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ATRACE_CALL();
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ALOGV("SurfaceTextureClient::setBufferCount");
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Mutex::Autolock lock(mMutex);
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status_t err = mSurfaceTexture->setBufferCount(bufferCount);
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ALOGE_IF(err, "ISurfaceTexture::setBufferCount(%d) returned %s",
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bufferCount, strerror(-err));
|
|
|
|
if (err == NO_ERROR) {
|
|
freeAllBuffers();
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
int SurfaceTextureClient::setBuffersDimensions(int w, int h)
|
|
{
|
|
ATRACE_CALL();
|
|
ALOGV("SurfaceTextureClient::setBuffersDimensions");
|
|
|
|
if (w<0 || h<0)
|
|
return BAD_VALUE;
|
|
|
|
if ((w && !h) || (!w && h))
|
|
return BAD_VALUE;
|
|
|
|
Mutex::Autolock lock(mMutex);
|
|
mReqWidth = w;
|
|
mReqHeight = h;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
int SurfaceTextureClient::setBuffersUserDimensions(int w, int h)
|
|
{
|
|
ATRACE_CALL();
|
|
ALOGV("SurfaceTextureClient::setBuffersUserDimensions");
|
|
|
|
if (w<0 || h<0)
|
|
return BAD_VALUE;
|
|
|
|
if ((w && !h) || (!w && h))
|
|
return BAD_VALUE;
|
|
|
|
Mutex::Autolock lock(mMutex);
|
|
mUserWidth = w;
|
|
mUserHeight = h;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
int SurfaceTextureClient::setBuffersFormat(int format)
|
|
{
|
|
ALOGV("SurfaceTextureClient::setBuffersFormat");
|
|
|
|
if (format<0)
|
|
return BAD_VALUE;
|
|
|
|
Mutex::Autolock lock(mMutex);
|
|
mReqFormat = format;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
int SurfaceTextureClient::setScalingMode(int mode)
|
|
{
|
|
ATRACE_CALL();
|
|
ALOGV("SurfaceTextureClient::setScalingMode(%d)", mode);
|
|
|
|
switch (mode) {
|
|
case NATIVE_WINDOW_SCALING_MODE_FREEZE:
|
|
case NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW:
|
|
case NATIVE_WINDOW_SCALING_MODE_SCALE_CROP:
|
|
break;
|
|
default:
|
|
ALOGE("unknown scaling mode: %d", mode);
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
Mutex::Autolock lock(mMutex);
|
|
mScalingMode = mode;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
int SurfaceTextureClient::setBuffersTransform(int transform)
|
|
{
|
|
ATRACE_CALL();
|
|
ALOGV("SurfaceTextureClient::setBuffersTransform");
|
|
Mutex::Autolock lock(mMutex);
|
|
mTransform = transform;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
int SurfaceTextureClient::setBuffersTimestamp(int64_t timestamp)
|
|
{
|
|
ALOGV("SurfaceTextureClient::setBuffersTimestamp");
|
|
Mutex::Autolock lock(mMutex);
|
|
mTimestamp = timestamp;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
void SurfaceTextureClient::freeAllBuffers() {
|
|
for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
|
|
mSlots[i].buffer = 0;
|
|
}
|
|
}
|
|
|
|
// ----------------------------------------------------------------------
|
|
// the lock/unlock APIs must be used from the same thread
|
|
|
|
static status_t copyBlt(
|
|
const sp<GraphicBuffer>& dst,
|
|
const sp<GraphicBuffer>& src,
|
|
const Region& reg)
|
|
{
|
|
// src and dst with, height and format must be identical. no verification
|
|
// is done here.
|
|
status_t err;
|
|
uint8_t const * src_bits = NULL;
|
|
err = src->lock(GRALLOC_USAGE_SW_READ_OFTEN, reg.bounds(), (void**)&src_bits);
|
|
ALOGE_IF(err, "error locking src buffer %s", strerror(-err));
|
|
|
|
uint8_t* dst_bits = NULL;
|
|
err = dst->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, reg.bounds(), (void**)&dst_bits);
|
|
ALOGE_IF(err, "error locking dst buffer %s", strerror(-err));
|
|
|
|
Region::const_iterator head(reg.begin());
|
|
Region::const_iterator tail(reg.end());
|
|
if (head != tail && src_bits && dst_bits) {
|
|
const size_t bpp = bytesPerPixel(src->format);
|
|
const size_t dbpr = dst->stride * bpp;
|
|
const size_t sbpr = src->stride * bpp;
|
|
|
|
while (head != tail) {
|
|
const Rect& r(*head++);
|
|
ssize_t h = r.height();
|
|
if (h <= 0) continue;
|
|
size_t size = r.width() * bpp;
|
|
uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp;
|
|
uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp;
|
|
if (dbpr==sbpr && size==sbpr) {
|
|
size *= h;
|
|
h = 1;
|
|
}
|
|
do {
|
|
memcpy(d, s, size);
|
|
d += dbpr;
|
|
s += sbpr;
|
|
} while (--h > 0);
|
|
}
|
|
}
|
|
|
|
if (src_bits)
|
|
src->unlock();
|
|
|
|
if (dst_bits)
|
|
dst->unlock();
|
|
|
|
return err;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
status_t SurfaceTextureClient::lock(
|
|
ANativeWindow_Buffer* outBuffer, ARect* inOutDirtyBounds)
|
|
{
|
|
if (mLockedBuffer != 0) {
|
|
ALOGE("Surface::lock failed, already locked");
|
|
return INVALID_OPERATION;
|
|
}
|
|
|
|
if (!mConnectedToCpu) {
|
|
int err = SurfaceTextureClient::connect(NATIVE_WINDOW_API_CPU);
|
|
if (err) {
|
|
return err;
|
|
}
|
|
// we're intending to do software rendering from this point
|
|
setUsage(GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN);
|
|
}
|
|
|
|
ANativeWindowBuffer* out;
|
|
status_t err = dequeueBuffer(&out);
|
|
ALOGE_IF(err, "dequeueBuffer failed (%s)", strerror(-err));
|
|
if (err == NO_ERROR) {
|
|
sp<GraphicBuffer> backBuffer(GraphicBuffer::getSelf(out));
|
|
err = lockBuffer(backBuffer.get());
|
|
ALOGE_IF(err, "lockBuffer (handle=%p) failed (%s)",
|
|
backBuffer->handle, strerror(-err));
|
|
if (err == NO_ERROR) {
|
|
const Rect bounds(backBuffer->width, backBuffer->height);
|
|
|
|
Region newDirtyRegion;
|
|
if (inOutDirtyBounds) {
|
|
newDirtyRegion.set(static_cast<Rect const&>(*inOutDirtyBounds));
|
|
newDirtyRegion.andSelf(bounds);
|
|
} else {
|
|
newDirtyRegion.set(bounds);
|
|
}
|
|
|
|
// figure out if we can copy the frontbuffer back
|
|
const sp<GraphicBuffer>& frontBuffer(mPostedBuffer);
|
|
const bool canCopyBack = (frontBuffer != 0 &&
|
|
backBuffer->width == frontBuffer->width &&
|
|
backBuffer->height == frontBuffer->height &&
|
|
backBuffer->format == frontBuffer->format);
|
|
|
|
if (canCopyBack) {
|
|
// copy the area that is invalid and not repainted this round
|
|
const Region copyback(mDirtyRegion.subtract(newDirtyRegion));
|
|
if (!copyback.isEmpty())
|
|
copyBlt(backBuffer, frontBuffer, copyback);
|
|
} else {
|
|
// if we can't copy-back anything, modify the user's dirty
|
|
// region to make sure they redraw the whole buffer
|
|
newDirtyRegion.set(bounds);
|
|
mDirtyRegion.clear();
|
|
Mutex::Autolock lock(mMutex);
|
|
for (size_t i=0 ; i<NUM_BUFFER_SLOTS ; i++) {
|
|
mSlots[i].dirtyRegion.clear();
|
|
}
|
|
}
|
|
|
|
|
|
{ // scope for the lock
|
|
Mutex::Autolock lock(mMutex);
|
|
int backBufferSlot(getSlotFromBufferLocked(backBuffer.get()));
|
|
if (backBufferSlot >= 0) {
|
|
Region& dirtyRegion(mSlots[backBufferSlot].dirtyRegion);
|
|
mDirtyRegion.subtract(dirtyRegion);
|
|
dirtyRegion = newDirtyRegion;
|
|
}
|
|
}
|
|
|
|
mDirtyRegion.orSelf(newDirtyRegion);
|
|
if (inOutDirtyBounds) {
|
|
*inOutDirtyBounds = newDirtyRegion.getBounds();
|
|
}
|
|
|
|
void* vaddr;
|
|
status_t res = backBuffer->lock(
|
|
GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN,
|
|
newDirtyRegion.bounds(), &vaddr);
|
|
|
|
ALOGW_IF(res, "failed locking buffer (handle = %p)",
|
|
backBuffer->handle);
|
|
|
|
if (res != 0) {
|
|
err = INVALID_OPERATION;
|
|
} else {
|
|
mLockedBuffer = backBuffer;
|
|
outBuffer->width = backBuffer->width;
|
|
outBuffer->height = backBuffer->height;
|
|
outBuffer->stride = backBuffer->stride;
|
|
outBuffer->format = backBuffer->format;
|
|
outBuffer->bits = vaddr;
|
|
}
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
|
|
status_t SurfaceTextureClient::unlockAndPost()
|
|
{
|
|
if (mLockedBuffer == 0) {
|
|
ALOGE("Surface::unlockAndPost failed, no locked buffer");
|
|
return INVALID_OPERATION;
|
|
}
|
|
|
|
status_t err = mLockedBuffer->unlock();
|
|
ALOGE_IF(err, "failed unlocking buffer (%p)", mLockedBuffer->handle);
|
|
|
|
err = queueBuffer(mLockedBuffer.get());
|
|
ALOGE_IF(err, "queueBuffer (handle=%p) failed (%s)",
|
|
mLockedBuffer->handle, strerror(-err));
|
|
|
|
mPostedBuffer = mLockedBuffer;
|
|
mLockedBuffer = 0;
|
|
return err;
|
|
}
|
|
|
|
}; // namespace android
|