android_frameworks_base/libs/hwui/canvas/CanvasOpRasterizer.cpp
John Reck 064650b3bf Add MultiDisplayList + memory leak fixes
MultiDisplayList can contain either a SkiaDisplayList
or a CanvasOpBuffer. However DisplayList itself
still points to the SkiaDisplayList-only wrapper
to avoid any std::variant or std::visit overhead
just yet.

Also fixes a memory leak in CanvasFrontend from an
uninitialized std::optional and a few minor leaks
in unit tests.

Test: build & hwui_unit passes

Fixes: 184680809
Change-Id: Ifa6b723b6456f5d3eeac1201e76f337250103d6f
Merged-In: Ifa6b723b6456f5d3eeac1201e76f337250103d6f
(cherry picked from commit d34d6cec97c8f1be92f676aeb79c83d57cf8c6ba)
2021-04-06 23:13:17 +00:00

49 lines
1.7 KiB
C++

/*
* Copyright (C) 2020 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 "CanvasOpRasterizer.h"
#include <SkCanvas.h>
#include <log/log.h>
#include <vector>
#include "CanvasOpBuffer.h"
#include "CanvasOps.h"
namespace android::uirenderer {
void rasterizeCanvasBuffer(const CanvasOpBuffer& source, SkCanvas* destination) {
// Tracks the global transform from the current display list back toward the display space
// Push on beginning a RenderNode draw, pop on ending one
std::vector<SkMatrix> globalMatrixStack;
SkMatrix& currentGlobalTransform = globalMatrixStack.emplace_back(SkMatrix::I());
source.for_each([&]<CanvasOpType T>(const CanvasOpContainer<T> * op) {
if constexpr (CanvasOpTraits::can_draw<CanvasOp<T>>) {
// Generic OP
// First apply the current transformation
destination->setMatrix(SkMatrix::Concat(currentGlobalTransform, op->transform()));
// Now draw it
(*op)->draw(destination);
return;
}
LOG_ALWAYS_FATAL("TODO, unable to rasterize %d", static_cast<int>(T));
});
}
} // namespace android::uirenderer