1 /*
2 * Copyright 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "AutoBackendTextureRelease.h"
18
19 #include "renderthread/RenderThread.h"
20 #include "utils/Color.h"
21 #include "utils/PaintUtils.h"
22
23 using namespace android::uirenderer::renderthread;
24
25 namespace android {
26 namespace uirenderer {
27
AutoBackendTextureRelease(GrContext * context,AHardwareBuffer * buffer)28 AutoBackendTextureRelease::AutoBackendTextureRelease(GrContext* context, AHardwareBuffer* buffer) {
29 AHardwareBuffer_Desc desc;
30 AHardwareBuffer_describe(buffer, &desc);
31 bool createProtectedImage = 0 != (desc.usage & AHARDWAREBUFFER_USAGE_PROTECTED_CONTENT);
32 GrBackendFormat backendFormat =
33 GrAHardwareBufferUtils::GetBackendFormat(context, buffer, desc.format, false);
34 mBackendTexture = GrAHardwareBufferUtils::MakeBackendTexture(
35 context, buffer, desc.width, desc.height, &mDeleteProc, &mUpdateProc, &mImageCtx,
36 createProtectedImage, backendFormat, false);
37 }
38
unref(bool releaseImage)39 void AutoBackendTextureRelease::unref(bool releaseImage) {
40 if (!RenderThread::isCurrent()) {
41 // EGLImage needs to be destroyed on RenderThread to prevent memory leak.
42 // ~SkImage dtor for both pipelines needs to be invoked on RenderThread, because it is not
43 // thread safe.
44 RenderThread::getInstance().queue().post([this, releaseImage]() { unref(releaseImage); });
45 return;
46 }
47
48 if (releaseImage) {
49 mImage.reset();
50 }
51
52 mUsageCount--;
53 if (mUsageCount <= 0) {
54 if (mBackendTexture.isValid()) {
55 mDeleteProc(mImageCtx);
56 mBackendTexture = {};
57 }
58 delete this;
59 }
60 }
61
62 // releaseProc is invoked by SkImage, when texture is no longer in use.
63 // "releaseContext" contains an "AutoBackendTextureRelease*".
releaseProc(SkImage::ReleaseContext releaseContext)64 static void releaseProc(SkImage::ReleaseContext releaseContext) {
65 AutoBackendTextureRelease* textureRelease =
66 reinterpret_cast<AutoBackendTextureRelease*>(releaseContext);
67 textureRelease->unref(false);
68 }
69
makeImage(AHardwareBuffer * buffer,android_dataspace dataspace,GrContext * context)70 void AutoBackendTextureRelease::makeImage(AHardwareBuffer* buffer, android_dataspace dataspace,
71 GrContext* context) {
72 AHardwareBuffer_Desc desc;
73 AHardwareBuffer_describe(buffer, &desc);
74 SkColorType colorType = GrAHardwareBufferUtils::GetSkColorTypeFromBufferFormat(desc.format);
75 mImage = SkImage::MakeFromTexture(
76 context, mBackendTexture, kTopLeft_GrSurfaceOrigin, colorType, kPremul_SkAlphaType,
77 uirenderer::DataSpaceToColorSpace(dataspace), releaseProc, this);
78 if (mImage.get()) {
79 // The following ref will be counteracted by releaseProc, when SkImage is discarded.
80 ref();
81 }
82 }
83
newBufferContent(GrContext * context)84 void AutoBackendTextureRelease::newBufferContent(GrContext* context) {
85 if (mBackendTexture.isValid()) {
86 mUpdateProc(mImageCtx, context);
87 }
88 }
89
90 } /* namespace uirenderer */
91 } /* namespace android */
92