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/*
* Copyright 2019 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 "AutoBackendTextureRelease.h"
#include "renderthread/RenderThread.h"
#include "utils/Color.h"
#include "utils/PaintUtils.h"
using namespace android::uirenderer::renderthread;
namespace android {
namespace uirenderer {
AutoBackendTextureRelease::AutoBackendTextureRelease(GrDirectContext* context,
AHardwareBuffer* buffer) {
AHardwareBuffer_Desc desc;
AHardwareBuffer_describe(buffer, &desc);
bool createProtectedImage = 0 != (desc.usage & AHARDWAREBUFFER_USAGE_PROTECTED_CONTENT);
GrBackendFormat backendFormat =
GrAHardwareBufferUtils::GetBackendFormat(context, buffer, desc.format, false);
mBackendTexture = GrAHardwareBufferUtils::MakeBackendTexture(
context, buffer, desc.width, desc.height, &mDeleteProc, &mUpdateProc, &mImageCtx,
createProtectedImage, backendFormat, false);
}
void AutoBackendTextureRelease::unref(bool releaseImage) {
if (!RenderThread::isCurrent()) {
// EGLImage needs to be destroyed on RenderThread to prevent memory leak.
// ~SkImage dtor for both pipelines needs to be invoked on RenderThread, because it is not
// thread safe.
RenderThread::getInstance().queue().post([this, releaseImage]() { unref(releaseImage); });
return;
}
if (releaseImage) {
mImage.reset();
}
mUsageCount--;
if (mUsageCount <= 0) {
if (mBackendTexture.isValid()) {
mDeleteProc(mImageCtx);
mBackendTexture = {};
}
delete this;
}
}
// releaseProc is invoked by SkImage, when texture is no longer in use.
// "releaseContext" contains an "AutoBackendTextureRelease*".
static void releaseProc(SkImage::ReleaseContext releaseContext) {
AutoBackendTextureRelease* textureRelease =
reinterpret_cast<AutoBackendTextureRelease*>(releaseContext);
textureRelease->unref(false);
}
void AutoBackendTextureRelease::makeImage(AHardwareBuffer* buffer,
android_dataspace dataspace,
GrDirectContext* context) {
AHardwareBuffer_Desc desc;
AHardwareBuffer_describe(buffer, &desc);
SkColorType colorType = GrAHardwareBufferUtils::GetSkColorTypeFromBufferFormat(desc.format);
mImage = SkImage::MakeFromTexture(
context, mBackendTexture, kTopLeft_GrSurfaceOrigin, colorType, kPremul_SkAlphaType,
uirenderer::DataSpaceToColorSpace(dataspace), releaseProc, this);
if (mImage.get()) {
// The following ref will be counteracted by releaseProc, when SkImage is discarded.
ref();
}
}
void AutoBackendTextureRelease::newBufferContent(GrDirectContext* context) {
if (mBackendTexture.isValid()) {
mUpdateProc(mImageCtx, context);
}
}
void AutoBackendTextureRelease::releaseQueueOwnership(GrDirectContext* context) {
if (!context) {
return;
}
LOG_ALWAYS_FATAL_IF(Properties::getRenderPipelineType() != RenderPipelineType::SkiaVulkan);
if (mBackendTexture.isValid()) {
// Passing in VK_IMAGE_LAYOUT_UNDEFINED means we keep the old layout.
GrBackendSurfaceMutableState newState(VK_IMAGE_LAYOUT_UNDEFINED,
VK_QUEUE_FAMILY_FOREIGN_EXT);
// The unref for this ref happens in the releaseProc passed into setBackendTextureState. The
// releaseProc callback will be made when the work to set the new state has finished on the
// gpu.
ref();
// Note that we don't have an explicit call to set the backend texture back onto the
// graphics queue when we use the VkImage again. Internally, Skia will notice that the image
// is not on the graphics queue and will do the transition automatically.
context->setBackendTextureState(mBackendTexture, newState, nullptr, releaseProc, this);
}
}
} /* namespace uirenderer */
} /* namespace android */
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