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/*
* Copyright 2018 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 <android/native_window.h>
#include <android/surface_control.h>
#include <gui/Surface.h>
#include <gui/SurfaceComposerClient.h>
#include <gui/SurfaceControl.h>
using namespace android;
using Transaction = SurfaceComposerClient::Transaction;
#define CHECK_NOT_NULL(name) \
LOG_ALWAYS_FATAL_IF(name == nullptr, "nullptr passed as " #name " argument");
#define CHECK_VALID_RECT(name) \
LOG_ALWAYS_FATAL_IF(!static_cast<const Rect&>(name).isValid(), \
"invalid arg passed as " #name " argument");
Transaction* ASurfaceTransaction_to_Transaction(ASurfaceTransaction* aSurfaceTransaction) {
return reinterpret_cast<Transaction*>(aSurfaceTransaction);
}
SurfaceControl* ASurfaceControl_to_SurfaceControl(ASurfaceControl* aSurfaceControl) {
return reinterpret_cast<SurfaceControl*>(aSurfaceControl);
}
void SurfaceControl_acquire(SurfaceControl* surfaceControl) {
// incStrong/decStrong token must be the same, doesn't matter what it is
surfaceControl->incStrong((void*)SurfaceControl_acquire);
}
void SurfaceControl_release(SurfaceControl* surfaceControl) {
// incStrong/decStrong token must be the same, doesn't matter what it is
surfaceControl->decStrong((void*)SurfaceControl_acquire);
}
ASurfaceControl* ASurfaceControl_createFromWindow(ANativeWindow* window, const char* debug_name) {
CHECK_NOT_NULL(window);
CHECK_NOT_NULL(debug_name);
sp<SurfaceComposerClient> client = new SurfaceComposerClient();
if (client->initCheck() != NO_ERROR) {
return nullptr;
}
uint32_t flags = ISurfaceComposerClient::eFXSurfaceBufferState;
sp<SurfaceControl> surfaceControl =
client->createWithSurfaceParent(String8(debug_name), 0 /* width */, 0 /* height */,
// Format is only relevant for buffer queue layers.
PIXEL_FORMAT_UNKNOWN /* format */, flags,
static_cast<Surface*>(window));
if (!surfaceControl) {
return nullptr;
}
SurfaceControl_acquire(surfaceControl.get());
return reinterpret_cast<ASurfaceControl*>(surfaceControl.get());
}
ASurfaceControl* ASurfaceControl_create(ASurfaceControl* parent, const char* debug_name) {
CHECK_NOT_NULL(parent);
CHECK_NOT_NULL(debug_name);
SurfaceComposerClient* client = ASurfaceControl_to_SurfaceControl(parent)->getClient().get();
SurfaceControl* surfaceControlParent = ASurfaceControl_to_SurfaceControl(parent);
uint32_t flags = ISurfaceComposerClient::eFXSurfaceBufferState;
sp<SurfaceControl> surfaceControl =
client->createSurface(String8(debug_name), 0 /* width */, 0 /* height */,
// Format is only relevant for buffer queue layers.
PIXEL_FORMAT_UNKNOWN /* format */, flags,
surfaceControlParent);
if (!surfaceControl) {
return nullptr;
}
SurfaceControl_acquire(surfaceControl.get());
return reinterpret_cast<ASurfaceControl*>(surfaceControl.get());
}
void ASurfaceControl_destroy(ASurfaceControl* aSurfaceControl) {
sp<SurfaceControl> surfaceControl = ASurfaceControl_to_SurfaceControl(aSurfaceControl);
Transaction().reparent(surfaceControl, nullptr).apply();
SurfaceControl_release(surfaceControl.get());
}
ASurfaceTransaction* ASurfaceTransaction_create() {
Transaction* transaction = new Transaction;
return reinterpret_cast<ASurfaceTransaction*>(transaction);
}
void ASurfaceTransaction_delete(ASurfaceTransaction* aSurfaceTransaction) {
Transaction* transaction = ASurfaceTransaction_to_Transaction(aSurfaceTransaction);
delete transaction;
}
void ASurfaceTransaction_apply(ASurfaceTransaction* aSurfaceTransaction) {
CHECK_NOT_NULL(aSurfaceTransaction);
Transaction* transaction = ASurfaceTransaction_to_Transaction(aSurfaceTransaction);
transaction->apply();
}
void ASurfaceTransaction_setOnComplete(ASurfaceTransaction* aSurfaceTransaction, void* context,
ASurfaceTransaction_OnComplete func) {
CHECK_NOT_NULL(aSurfaceTransaction);
CHECK_NOT_NULL(context);
CHECK_NOT_NULL(func);
TransactionCompletedCallbackTakesContext callback = [func](void* callback_context,
const TransactionStats& stats) {
int fence = (stats.presentFence) ? stats.presentFence->dup() : -1;
(*func)(callback_context, fence);
};
Transaction* transaction = ASurfaceTransaction_to_Transaction(aSurfaceTransaction);
transaction->addTransactionCompletedCallback(callback, context);
}
void ASurfaceTransaction_setVisibility(ASurfaceTransaction* aSurfaceTransaction, ASurfaceControl* aSurfaceControl,
int8_t visibility) {
CHECK_NOT_NULL(aSurfaceTransaction);
CHECK_NOT_NULL(aSurfaceControl);
sp<SurfaceControl> surfaceControl = ASurfaceControl_to_SurfaceControl(aSurfaceControl);
Transaction* transaction = ASurfaceTransaction_to_Transaction(aSurfaceTransaction);
switch (visibility) {
case ASURFACE_TRANSACTION_VISIBILITY_SHOW:
transaction->show(surfaceControl);
break;
case ASURFACE_TRANSACTION_VISIBILITY_HIDE:
transaction->hide(surfaceControl);
break;
default:
LOG_ALWAYS_FATAL("invalid visibility %d", visibility);
}
}
void ASurfaceTransaction_setZOrder(ASurfaceTransaction* aSurfaceTransaction, ASurfaceControl* aSurfaceControl,
int32_t z_order) {
CHECK_NOT_NULL(aSurfaceTransaction);
CHECK_NOT_NULL(aSurfaceControl);
sp<SurfaceControl> surfaceControl = ASurfaceControl_to_SurfaceControl(aSurfaceControl);
Transaction* transaction = ASurfaceTransaction_to_Transaction(aSurfaceTransaction);
transaction->setLayer(surfaceControl, z_order);
}
void ASurfaceTransaction_setBuffer(ASurfaceTransaction* aSurfaceTransaction, ASurfaceControl* aSurfaceControl,
AHardwareBuffer* buffer, int fence_fd) {
CHECK_NOT_NULL(aSurfaceTransaction);
CHECK_NOT_NULL(aSurfaceControl);
sp<SurfaceControl> surfaceControl = ASurfaceControl_to_SurfaceControl(aSurfaceControl);
Transaction* transaction = ASurfaceTransaction_to_Transaction(aSurfaceTransaction);
sp<GraphicBuffer> graphic_buffer(reinterpret_cast<GraphicBuffer*>(buffer));
transaction->setBuffer(surfaceControl, graphic_buffer);
if (fence_fd != -1) {
sp<Fence> fence = new Fence(fence_fd);
transaction->setAcquireFence(surfaceControl, fence);
}
}
void ASurfaceTransaction_setGeometry(ASurfaceTransaction* aSurfaceTransaction,
ASurfaceControl* aSurfaceControl, const ARect& source,
const ARect& destination, int32_t transform) {
CHECK_NOT_NULL(aSurfaceTransaction);
CHECK_NOT_NULL(aSurfaceControl);
CHECK_VALID_RECT(source);
CHECK_VALID_RECT(destination);
sp<SurfaceControl> surfaceControl = ASurfaceControl_to_SurfaceControl(aSurfaceControl);
Transaction* transaction = ASurfaceTransaction_to_Transaction(aSurfaceTransaction);
transaction->setCrop(surfaceControl, static_cast<const Rect&>(source));
transaction->setFrame(surfaceControl, static_cast<const Rect&>(destination));
transaction->setTransform(surfaceControl, transform);
}
void ASurfaceTransaction_setBufferTransparency(ASurfaceTransaction* aSurfaceTransaction,
ASurfaceControl* aSurfaceControl,
int8_t transparency) {
CHECK_NOT_NULL(aSurfaceTransaction);
CHECK_NOT_NULL(aSurfaceControl);
sp<SurfaceControl> surfaceControl = ASurfaceControl_to_SurfaceControl(aSurfaceControl);
Transaction* transaction = ASurfaceTransaction_to_Transaction(aSurfaceTransaction);
uint32_t flags = (transparency == ASURFACE_TRANSACTION_TRANSPARENCY_OPAQUE) ?
layer_state_t::eLayerOpaque : 0;
transaction->setFlags(surfaceControl, flags, layer_state_t::eLayerOpaque);
}
void ASurfaceTransaction_setDamageRegion(ASurfaceTransaction* aSurfaceTransaction, ASurfaceControl* aSurfaceControl,
const ARect rects[], uint32_t count) {
CHECK_NOT_NULL(aSurfaceTransaction);
CHECK_NOT_NULL(aSurfaceControl);
sp<SurfaceControl> surfaceControl = ASurfaceControl_to_SurfaceControl(aSurfaceControl);
Transaction* transaction = ASurfaceTransaction_to_Transaction(aSurfaceTransaction);
Region region;
for (uint32_t i = 0; i < count; ++i) {
region.merge(static_cast<const Rect&>(rects[i]));
}
transaction->setSurfaceDamageRegion(surfaceControl, region);
}
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