304 lines
9.2 KiB
C++
304 lines
9.2 KiB
C++
/*
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* Copyright (C) 2007 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 "GraphicBufferMapper"
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#define ATRACE_TAG ATRACE_TAG_GRAPHICS
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//#define LOG_NDEBUG 0
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#include <stdint.h>
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#include <errno.h>
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// We would eliminate the non-conforming zero-length array, but we can't since
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// this is effectively included from the Linux kernel
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wzero-length-array"
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#include <sync/sync.h>
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#pragma clang diagnostic pop
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#include <utils/Errors.h>
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#include <utils/Log.h>
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#include <utils/Trace.h>
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#include <ui/Gralloc1On0Adapter.h>
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#include <ui/GraphicBufferMapper.h>
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#include <ui/Rect.h>
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#include <system/graphics.h>
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namespace android {
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// ---------------------------------------------------------------------------
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ANDROID_SINGLETON_STATIC_INSTANCE( GraphicBufferMapper )
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GraphicBufferMapper::GraphicBufferMapper()
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: mLoader(std::make_unique<Gralloc1::Loader>()),
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mDevice(mLoader->getDevice()) {}
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status_t GraphicBufferMapper::registerBuffer(buffer_handle_t handle)
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{
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ATRACE_CALL();
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gralloc1_error_t error = mDevice->retain(handle);
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ALOGW_IF(error != GRALLOC1_ERROR_NONE, "registerBuffer(%p) failed: %d",
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handle, error);
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return error;
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}
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status_t GraphicBufferMapper::registerBuffer(const GraphicBuffer* buffer)
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{
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ATRACE_CALL();
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gralloc1_error_t error = mDevice->retain(buffer);
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ALOGW_IF(error != GRALLOC1_ERROR_NONE, "registerBuffer(%p) failed: %d",
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buffer->getNativeBuffer()->handle, error);
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return error;
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}
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status_t GraphicBufferMapper::unregisterBuffer(buffer_handle_t handle)
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{
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ATRACE_CALL();
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gralloc1_error_t error = mDevice->release(handle);
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ALOGW_IF(error != GRALLOC1_ERROR_NONE, "unregisterBuffer(%p): failed %d",
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handle, error);
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return error;
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}
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static inline gralloc1_rect_t asGralloc1Rect(const Rect& rect) {
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gralloc1_rect_t outRect{};
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outRect.left = rect.left;
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outRect.top = rect.top;
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outRect.width = rect.width();
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outRect.height = rect.height();
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return outRect;
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}
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status_t GraphicBufferMapper::lock(buffer_handle_t handle, uint32_t usage,
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const Rect& bounds, void** vaddr)
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{
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return lockAsync(handle, usage, bounds, vaddr, -1);
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}
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status_t GraphicBufferMapper::lockYCbCr(buffer_handle_t handle, uint32_t usage,
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const Rect& bounds, android_ycbcr *ycbcr)
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{
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return lockAsyncYCbCr(handle, usage, bounds, ycbcr, -1);
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}
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status_t GraphicBufferMapper::unlock(buffer_handle_t handle)
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{
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int32_t fenceFd = -1;
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status_t error = unlockAsync(handle, &fenceFd);
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if (error == NO_ERROR) {
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sync_wait(fenceFd, -1);
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close(fenceFd);
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}
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return error;
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}
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status_t GraphicBufferMapper::lockAsync(buffer_handle_t handle,
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uint32_t usage, const Rect& bounds, void** vaddr, int fenceFd)
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{
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ATRACE_CALL();
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gralloc1_rect_t accessRegion = asGralloc1Rect(bounds);
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sp<Fence> fence = new Fence(fenceFd);
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gralloc1_error_t error = mDevice->lock(handle,
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static_cast<gralloc1_producer_usage_t>(usage),
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static_cast<gralloc1_consumer_usage_t>(usage),
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&accessRegion, vaddr, fence);
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ALOGW_IF(error != GRALLOC1_ERROR_NONE, "lock(%p, ...) failed: %d", handle,
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error);
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return error;
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}
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static inline bool isValidYCbCrPlane(const android_flex_plane_t& plane) {
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if (plane.bits_per_component != 8) {
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ALOGV("Invalid number of bits per component: %d",
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plane.bits_per_component);
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return false;
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}
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if (plane.bits_used != 8) {
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ALOGV("Invalid number of bits used: %d", plane.bits_used);
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return false;
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}
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bool hasValidIncrement = plane.h_increment == 1 ||
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(plane.component != FLEX_COMPONENT_Y && plane.h_increment == 2);
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hasValidIncrement = hasValidIncrement && plane.v_increment > 0;
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if (!hasValidIncrement) {
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ALOGV("Invalid increment: h %d v %d", plane.h_increment,
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plane.v_increment);
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return false;
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}
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return true;
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}
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status_t GraphicBufferMapper::lockAsyncYCbCr(buffer_handle_t handle,
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uint32_t usage, const Rect& bounds, android_ycbcr *ycbcr, int fenceFd)
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{
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ATRACE_CALL();
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gralloc1_rect_t accessRegion = asGralloc1Rect(bounds);
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sp<Fence> fence = new Fence(fenceFd);
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if (mDevice->hasCapability(GRALLOC1_CAPABILITY_ON_ADAPTER)) {
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gralloc1_error_t error = mDevice->lockYCbCr(handle,
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static_cast<gralloc1_producer_usage_t>(usage),
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static_cast<gralloc1_consumer_usage_t>(usage),
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&accessRegion, ycbcr, fence);
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ALOGW_IF(error != GRALLOC1_ERROR_NONE, "lockYCbCr(%p, ...) failed: %d",
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handle, error);
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return error;
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}
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uint32_t numPlanes = 0;
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gralloc1_error_t error = mDevice->getNumFlexPlanes(handle, &numPlanes);
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if (error != GRALLOC1_ERROR_NONE) {
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ALOGV("Failed to retrieve number of flex planes: %d", error);
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return error;
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}
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if (numPlanes < 3) {
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ALOGV("Not enough planes for YCbCr (%u found)", numPlanes);
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return GRALLOC1_ERROR_UNSUPPORTED;
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}
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std::vector<android_flex_plane_t> planes(numPlanes);
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android_flex_layout_t flexLayout{};
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flexLayout.num_planes = numPlanes;
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flexLayout.planes = planes.data();
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error = mDevice->lockFlex(handle,
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static_cast<gralloc1_producer_usage_t>(usage),
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static_cast<gralloc1_consumer_usage_t>(usage),
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&accessRegion, &flexLayout, fence);
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if (error != GRALLOC1_ERROR_NONE) {
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ALOGW("lockFlex(%p, ...) failed: %d", handle, error);
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return error;
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}
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if (flexLayout.format != FLEX_FORMAT_YCbCr) {
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ALOGV("Unable to convert flex-format buffer to YCbCr");
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unlock(handle);
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return GRALLOC1_ERROR_UNSUPPORTED;
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}
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// Find planes
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auto yPlane = planes.cend();
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auto cbPlane = planes.cend();
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auto crPlane = planes.cend();
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for (auto planeIter = planes.cbegin(); planeIter != planes.cend();
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++planeIter) {
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if (planeIter->component == FLEX_COMPONENT_Y) {
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yPlane = planeIter;
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} else if (planeIter->component == FLEX_COMPONENT_Cb) {
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cbPlane = planeIter;
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} else if (planeIter->component == FLEX_COMPONENT_Cr) {
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crPlane = planeIter;
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}
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}
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if (yPlane == planes.cend()) {
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ALOGV("Unable to find Y plane");
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unlock(handle);
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return GRALLOC1_ERROR_UNSUPPORTED;
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}
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if (cbPlane == planes.cend()) {
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ALOGV("Unable to find Cb plane");
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unlock(handle);
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return GRALLOC1_ERROR_UNSUPPORTED;
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}
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if (crPlane == planes.cend()) {
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ALOGV("Unable to find Cr plane");
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unlock(handle);
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return GRALLOC1_ERROR_UNSUPPORTED;
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}
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// Validate planes
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if (!isValidYCbCrPlane(*yPlane)) {
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ALOGV("Y plane is invalid");
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unlock(handle);
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return GRALLOC1_ERROR_UNSUPPORTED;
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}
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if (!isValidYCbCrPlane(*cbPlane)) {
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ALOGV("Cb plane is invalid");
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unlock(handle);
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return GRALLOC1_ERROR_UNSUPPORTED;
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}
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if (!isValidYCbCrPlane(*crPlane)) {
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ALOGV("Cr plane is invalid");
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unlock(handle);
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return GRALLOC1_ERROR_UNSUPPORTED;
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}
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if (cbPlane->v_increment != crPlane->v_increment) {
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ALOGV("Cb and Cr planes have different step (%d vs. %d)",
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cbPlane->v_increment, crPlane->v_increment);
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unlock(handle);
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return GRALLOC1_ERROR_UNSUPPORTED;
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}
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if (cbPlane->h_increment != crPlane->h_increment) {
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ALOGV("Cb and Cr planes have different stride (%d vs. %d)",
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cbPlane->h_increment, crPlane->h_increment);
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unlock(handle);
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return GRALLOC1_ERROR_UNSUPPORTED;
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}
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// Pack plane data into android_ycbcr struct
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ycbcr->y = yPlane->top_left;
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ycbcr->cb = cbPlane->top_left;
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ycbcr->cr = crPlane->top_left;
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ycbcr->ystride = static_cast<size_t>(yPlane->v_increment);
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ycbcr->cstride = static_cast<size_t>(cbPlane->v_increment);
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ycbcr->chroma_step = static_cast<size_t>(cbPlane->h_increment);
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return error;
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}
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status_t GraphicBufferMapper::unlockAsync(buffer_handle_t handle, int *fenceFd)
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{
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ATRACE_CALL();
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sp<Fence> fence = Fence::NO_FENCE;
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gralloc1_error_t error = mDevice->unlock(handle, &fence);
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if (error != GRALLOC1_ERROR_NONE) {
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ALOGE("unlock(%p) failed: %d", handle, error);
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return error;
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}
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*fenceFd = fence->dup();
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return error;
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}
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#ifdef EXYNOS4_ENHANCEMENTS
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status_t GraphicBufferMapper::getphys(buffer_handle_t handle, void** paddr)
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{
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status_t err;
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err = mDevice->getphys(handle, paddr);
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ALOGW_IF(err, "getphys(%p) fail %d(%s)", handle, err, strerror(-err));
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return err;
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}
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#endif
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// ---------------------------------------------------------------------------
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}; // namespace android
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