diff options
author | Bill Peckham <bpeckham@google.com> | 2018-11-05 17:12:23 -0800 |
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committer | Bill Peckham <bpeckham@google.com> | 2018-11-05 17:12:23 -0800 |
commit | ba167de93776a7e5d1b347d1ee646e161cf24ce5 (patch) | |
tree | f1ced04b88bd977af08011e6c7e4124ebe8aa293 /libs/hwui/CanvasState.cpp | |
parent | f893260618712d3894d1279e27ee121d4be8817f (diff) | |
parent | 828551df83149d4b5754757d8b2dc36f55f24cad (diff) |
Merge QP1A.181022.001
Change-Id: I0e200ff664739f0bce5a55806ac4fc95fbbff52d
Diffstat (limited to 'libs/hwui/CanvasState.cpp')
-rw-r--r-- | libs/hwui/CanvasState.cpp | 284 |
1 files changed, 0 insertions, 284 deletions
diff --git a/libs/hwui/CanvasState.cpp b/libs/hwui/CanvasState.cpp deleted file mode 100644 index d18c4abde7f2..000000000000 --- a/libs/hwui/CanvasState.cpp +++ /dev/null @@ -1,284 +0,0 @@ -/* - * Copyright (C) 2014 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 "CanvasState.h" -#include "hwui/Canvas.h" -#include "utils/MathUtils.h" - -namespace android { -namespace uirenderer { - -CanvasState::CanvasState(CanvasStateClient& renderer) - : mWidth(-1), mHeight(-1), mSaveCount(1), mCanvas(renderer), mSnapshot(&mFirstSnapshot) {} - -CanvasState::~CanvasState() { - // First call freeSnapshot on all but mFirstSnapshot - // to invoke all the dtors - freeAllSnapshots(); - - // Now actually release the memory - while (mSnapshotPool) { - void* temp = mSnapshotPool; - mSnapshotPool = mSnapshotPool->previous; - free(temp); - } -} - -void CanvasState::initializeRecordingSaveStack(int viewportWidth, int viewportHeight) { - if (mWidth != viewportWidth || mHeight != viewportHeight) { - mWidth = viewportWidth; - mHeight = viewportHeight; - mFirstSnapshot.initializeViewport(viewportWidth, viewportHeight); - mCanvas.onViewportInitialized(); - } - - freeAllSnapshots(); - mSnapshot = allocSnapshot(&mFirstSnapshot, SaveFlags::MatrixClip); - mSnapshot->setRelativeLightCenter(Vector3()); - mSaveCount = 1; -} - -void CanvasState::initializeSaveStack(int viewportWidth, int viewportHeight, float clipLeft, - float clipTop, float clipRight, float clipBottom, - const Vector3& lightCenter) { - if (mWidth != viewportWidth || mHeight != viewportHeight) { - mWidth = viewportWidth; - mHeight = viewportHeight; - mFirstSnapshot.initializeViewport(viewportWidth, viewportHeight); - mCanvas.onViewportInitialized(); - } - - freeAllSnapshots(); - mSnapshot = allocSnapshot(&mFirstSnapshot, SaveFlags::MatrixClip); - mSnapshot->setClip(clipLeft, clipTop, clipRight, clipBottom); - mSnapshot->fbo = mCanvas.getTargetFbo(); - mSnapshot->setRelativeLightCenter(lightCenter); - mSaveCount = 1; -} - -Snapshot* CanvasState::allocSnapshot(Snapshot* previous, int savecount) { - void* memory; - if (mSnapshotPool) { - memory = mSnapshotPool; - mSnapshotPool = mSnapshotPool->previous; - mSnapshotPoolCount--; - } else { - memory = malloc(sizeof(Snapshot)); - } - return new (memory) Snapshot(previous, savecount); -} - -void CanvasState::freeSnapshot(Snapshot* snapshot) { - snapshot->~Snapshot(); - // Arbitrary number, just don't let this grown unbounded - if (mSnapshotPoolCount > 10) { - free((void*)snapshot); - } else { - snapshot->previous = mSnapshotPool; - mSnapshotPool = snapshot; - mSnapshotPoolCount++; - } -} - -void CanvasState::freeAllSnapshots() { - while (mSnapshot != &mFirstSnapshot) { - Snapshot* temp = mSnapshot; - mSnapshot = mSnapshot->previous; - freeSnapshot(temp); - } -} - -/////////////////////////////////////////////////////////////////////////////// -// Save (layer) -/////////////////////////////////////////////////////////////////////////////// - -/** - * Guaranteed to save without side-effects - * - * This approach, here and in restoreSnapshot(), allows subclasses to directly manipulate the save - * stack, and ensures restoreToCount() doesn't call back into subclass overrides. - */ -int CanvasState::saveSnapshot(int flags) { - mSnapshot = allocSnapshot(mSnapshot, flags); - return mSaveCount++; -} - -int CanvasState::save(int flags) { - return saveSnapshot(flags); -} - -/** - * Guaranteed to restore without side-effects. - */ -void CanvasState::restoreSnapshot() { - Snapshot* toRemove = mSnapshot; - Snapshot* toRestore = mSnapshot->previous; - - mSaveCount--; - mSnapshot = toRestore; - - // subclass handles restore implementation - mCanvas.onSnapshotRestored(*toRemove, *toRestore); - - freeSnapshot(toRemove); -} - -void CanvasState::restore() { - if (mSaveCount > 1) { - restoreSnapshot(); - } -} - -void CanvasState::restoreToCount(int saveCount) { - if (saveCount < 1) saveCount = 1; - - while (mSaveCount > saveCount) { - restoreSnapshot(); - } -} - -/////////////////////////////////////////////////////////////////////////////// -// Matrix -/////////////////////////////////////////////////////////////////////////////// - -void CanvasState::getMatrix(SkMatrix* matrix) const { - mSnapshot->transform->copyTo(*matrix); -} - -void CanvasState::translate(float dx, float dy, float dz) { - mSnapshot->transform->translate(dx, dy, dz); -} - -void CanvasState::rotate(float degrees) { - mSnapshot->transform->rotate(degrees, 0.0f, 0.0f, 1.0f); -} - -void CanvasState::scale(float sx, float sy) { - mSnapshot->transform->scale(sx, sy, 1.0f); -} - -void CanvasState::skew(float sx, float sy) { - mSnapshot->transform->skew(sx, sy); -} - -void CanvasState::setMatrix(const SkMatrix& matrix) { - mSnapshot->transform->load(matrix); -} - -void CanvasState::setMatrix(const Matrix4& matrix) { - *(mSnapshot->transform) = matrix; -} - -void CanvasState::concatMatrix(const SkMatrix& matrix) { - mat4 transform(matrix); - mSnapshot->transform->multiply(transform); -} - -void CanvasState::concatMatrix(const Matrix4& matrix) { - mSnapshot->transform->multiply(matrix); -} - -/////////////////////////////////////////////////////////////////////////////// -// Clip -/////////////////////////////////////////////////////////////////////////////// - -bool CanvasState::clipRect(float left, float top, float right, float bottom, SkClipOp op) { - mSnapshot->clip(Rect(left, top, right, bottom), op); - return !mSnapshot->clipIsEmpty(); -} - -bool CanvasState::clipPath(const SkPath* path, SkClipOp op) { - mSnapshot->clipPath(*path, op); - return !mSnapshot->clipIsEmpty(); -} - -void CanvasState::setClippingOutline(LinearAllocator& allocator, const Outline* outline) { - Rect bounds; - float radius; - if (!outline->getAsRoundRect(&bounds, &radius)) return; // only RR supported - - bool outlineIsRounded = MathUtils::isPositive(radius); - if (!outlineIsRounded || currentTransform()->isSimple()) { - // TODO: consider storing this rect separately, so that this can't be replaced with clip ops - clipRect(bounds.left, bounds.top, bounds.right, bounds.bottom, SkClipOp::kIntersect); - } - if (outlineIsRounded) { - setClippingRoundRect(allocator, bounds, radius, false); - } -} - -/////////////////////////////////////////////////////////////////////////////// -// Quick Rejection -/////////////////////////////////////////////////////////////////////////////// - -/** - * Calculates whether content drawn within the passed bounds would be outside of, or intersect with - * the clipRect. Does not modify the scissor. - * - * @param clipRequired if not null, will be set to true if element intersects clip - * (and wasn't rejected) - * - * @param snapOut if set, the geometry will be treated as having an AA ramp. - * See Rect::snapGeometryToPixelBoundaries() - */ -bool CanvasState::calculateQuickRejectForScissor(float left, float top, float right, float bottom, - bool* clipRequired, bool* roundRectClipRequired, - bool snapOut) const { - if (bottom <= top || right <= left) { - return true; - } - - Rect r(left, top, right, bottom); - currentTransform()->mapRect(r); - r.snapGeometryToPixelBoundaries(snapOut); - - Rect clipRect(currentRenderTargetClip()); - clipRect.snapToPixelBoundaries(); - - if (!clipRect.intersects(r)) return true; - - // clip is required if geometry intersects clip rect - if (clipRequired) { - *clipRequired = !clipRect.contains(r); - } - - // round rect clip is required if RR clip exists, and geometry intersects its corners - if (roundRectClipRequired) { - *roundRectClipRequired = mSnapshot->roundRectClipState != nullptr && - mSnapshot->roundRectClipState->areaRequiresRoundRectClip(r); - } - return false; -} - -bool CanvasState::quickRejectConservative(float left, float top, float right, float bottom) const { - if (bottom <= top || right <= left) { - return true; - } - - Rect r(left, top, right, bottom); - currentTransform()->mapRect(r); - r.roundOut(); // rounded out to be conservative - - Rect clipRect(currentRenderTargetClip()); - clipRect.snapToPixelBoundaries(); - - if (!clipRect.intersects(r)) return true; - - return false; -} - -} // namespace uirenderer -} // namespace android |