1 /*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "software_render_backend.h"
17
18 #include "drawing_utils.h"
19 #include "surface_ohos_raster.h"
20
21 namespace OHOS {
22 namespace Rosen {
AcquireSkCanvas(std::unique_ptr<SurfaceFrame> & frame)23 SkCanvas* SoftwareRenderBackend::AcquireSkCanvas(std::unique_ptr<SurfaceFrame>& frame)
24 {
25 SurfaceFrameOhosRaster* framePtr = static_cast<SurfaceFrameOhosRaster*>(frame.get());
26 sptr<SurfaceBuffer> buffer = framePtr->GetBuffer();
27 if ((buffer == nullptr) || (buffer->GetWidth() <= 0) || (buffer->GetHeight() <= 0)) {
28 LOGE("Buffer is invalide");
29 return nullptr;
30 }
31
32 auto addr = static_cast<uint32_t*>(buffer->GetVirAddr());
33 if (addr == nullptr) {
34 LOGE("buffer addr is invalid");
35 return nullptr;
36 }
37 SkImageInfo info =
38 SkImageInfo::Make(buffer->GetWidth(), buffer->GetHeight(), kRGBA_8888_SkColorType, kPremul_SkAlphaType);
39 auto uniqueCanvasPtr = SkCanvas::MakeRasterDirect(info, addr, buffer->GetSize() / buffer->GetHeight());
40 skCanvas_ = std::move(uniqueCanvasPtr);
41
42 LOGD("SoftwareRenderBackend::AcquireCanvas canvas");
43 return skCanvas_.get();
44 }
45 }
46 }