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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "src/core/SkCanvasPriv.h"
#include "src/base/SkAutoMalloc.h"
#include "src/core/SkDevice.h"
#include "src/core/SkReadBuffer.h"
#include "src/core/SkWriter32.h"
#include <locale>
SkAutoCanvasMatrixPaint::SkAutoCanvasMatrixPaint(SkCanvas* canvas, const SkMatrix* matrix,
const SkPaint* paint, const SkRect& bounds)
: fCanvas(canvas)
, fSaveCount(canvas->getSaveCount()) {
if (paint) {
SkRect newBounds = bounds;
if (matrix) {
matrix->mapRect(&newBounds);
}
canvas->saveLayer(&newBounds, paint);
} else if (matrix) {
canvas->save();
}
if (matrix) {
canvas->concat(*matrix);
}
}
SkAutoCanvasMatrixPaint::~SkAutoCanvasMatrixPaint() {
fCanvas->restoreToCount(fSaveCount);
}
///////////////////////////////////////////////////////////////////////////////////////////////////
bool SkCanvasPriv::ReadLattice(SkReadBuffer& buffer, SkCanvas::Lattice* lattice) {
lattice->fXCount = buffer.readInt();
lattice->fXDivs = buffer.skipT<int32_t>(lattice->fXCount);
lattice->fYCount = buffer.readInt();
lattice->fYDivs = buffer.skipT<int32_t>(lattice->fYCount);
int flagCount = buffer.readInt();
lattice->fRectTypes = nullptr;
lattice->fColors = nullptr;
if (flagCount) {
lattice->fRectTypes = buffer.skipT<SkCanvas::Lattice::RectType>(flagCount);
lattice->fColors = buffer.skipT<SkColor>(flagCount);
}
lattice->fBounds = buffer.skipT<SkIRect>();
return buffer.isValid();
}
size_t SkCanvasPriv::WriteLattice(void* buffer, const SkCanvas::Lattice& lattice) {
int flagCount = lattice.fRectTypes ? (lattice.fXCount + 1) * (lattice.fYCount + 1) : 0;
const size_t size = (1 + lattice.fXCount + 1 + lattice.fYCount + 1) * sizeof(int32_t) +
SkAlign4(flagCount * sizeof(SkCanvas::Lattice::RectType)) +
SkAlign4(flagCount * sizeof(SkColor)) +
sizeof(SkIRect);
if (buffer) {
SkWriter32 writer(buffer, size);
writer.write32(lattice.fXCount);
writer.write(lattice.fXDivs, lattice.fXCount * sizeof(uint32_t));
writer.write32(lattice.fYCount);
writer.write(lattice.fYDivs, lattice.fYCount * sizeof(uint32_t));
writer.write32(flagCount);
writer.writePad(lattice.fRectTypes, flagCount * sizeof(uint8_t));
writer.write(lattice.fColors, flagCount * sizeof(SkColor));
SkASSERT(lattice.fBounds);
writer.write(lattice.fBounds, sizeof(SkIRect));
SkASSERT(writer.bytesWritten() == size);
}
return size;
}
void SkCanvasPriv::WriteLattice(SkWriteBuffer& buffer, const SkCanvas::Lattice& lattice) {
const size_t size = WriteLattice(nullptr, lattice);
SkAutoSMalloc<1024> storage(size);
WriteLattice(storage.get(), lattice);
buffer.writePad32(storage.get(), size);
}
void SkCanvasPriv::GetDstClipAndMatrixCounts(const SkCanvas::ImageSetEntry set[], int count,
int* totalDstClipCount, int* totalMatrixCount) {
int dstClipCount = 0;
int maxMatrixIndex = -1;
for (int i = 0; i < count; ++i) {
dstClipCount += 4 * set[i].fHasClip;
if (set[i].fMatrixIndex > maxMatrixIndex) {
maxMatrixIndex = set[i].fMatrixIndex;
}
}
*totalDstClipCount = dstClipCount;
*totalMatrixCount = maxMatrixIndex + 1;
}
#if GR_TEST_UTILS && defined(SK_GANESH)
#include "src/gpu/ganesh/Device_v1.h"
skgpu::ganesh::SurfaceDrawContext* SkCanvasPriv::TopDeviceSurfaceDrawContext(SkCanvas* canvas) {
if (auto gpuDevice = canvas->topDevice()->asGaneshDevice()) {
return gpuDevice->surfaceDrawContext();
}
return nullptr;
}
skgpu::ganesh::SurfaceFillContext* SkCanvasPriv::TopDeviceSurfaceFillContext(SkCanvas* canvas) {
if (auto gpuDevice = canvas->topDevice()->asGaneshDevice()) {
return gpuDevice->surfaceFillContext();
}
return nullptr;
}
#endif // GR_TEST_UTILS && defined(SK_GANESH)
#if defined(SK_GANESH)
#include "src/gpu/ganesh/Device_v1.h"
GrRenderTargetProxy* SkCanvasPriv::TopDeviceTargetProxy(SkCanvas* canvas) {
if (auto gpuDevice = canvas->topDevice()->asGaneshDevice()) {
return gpuDevice->targetProxy();
}
return nullptr;
}
#else // defined(SK_GANESH)
GrRenderTargetProxy* SkCanvasPriv::TopDeviceTargetProxy(SkCanvas* canvas) {
return nullptr;
}
#endif // defined(SK_GANESH)
#if GRAPHITE_TEST_UTILS
#include "src/gpu/graphite/Device.h"
skgpu::graphite::TextureProxy* SkCanvasPriv::TopDeviceGraphiteTargetProxy(SkCanvas* canvas) {
if (auto gpuDevice = canvas->topDevice()->asGraphiteDevice()) {
return gpuDevice->target();
}
return nullptr;
}
#endif // GRAPHITE_TEST_UTILS
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