本文整理汇总了C++中GrContext::getLayerCache方法的典型用法代码示例。如果您正苦于以下问题：C++ GrContext::getLayerCache方法的具体用法？C++ GrContext::getLayerCache怎么用？C++ GrContext::getLayerCache使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GrContext的用法示例。
在下文中一共展示了GrContext::getLayerCache方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: draw
void SkMultiPictureDraw::draw(bool flush) {
AutoMPDReset mpdreset(this);
#ifdef FORCE_SINGLE_THREAD_DRAWING_FOR_TESTING
for (int i = 0; i < fThreadSafeDrawData.count(); ++i) {
fThreadSafeDrawData[i].draw();
}
#else
sk_parallel_for(fThreadSafeDrawData.count(), [&](int i) {
fThreadSafeDrawData[i].draw();
});
#endif
// N.B. we could get going on any GPU work from this main thread while the CPU work runs.
// But in practice, we've either got GPU work or CPU work, not both.
const int count = fGPUDrawData.count();
if (0 == count) {
return;
}
#if !defined(SK_IGNORE_GPU_LAYER_HOISTING) && SK_SUPPORT_GPU
GrContext* context = fGPUDrawData[0].fCanvas->getGrContext();
SkASSERT(context);
// Start by collecting all the layers that are going to be atlased and render
// them (if necessary). Hoisting the free floating layers is deferred until
// drawing the canvas that requires them.
SkTDArray<GrHoistedLayer> atlasedNeedRendering, atlasedRecycled;
for (int i = 0; i < count; ++i) {
const DrawData& data = fGPUDrawData[i];
// we only expect 1 context for all the canvases
SkASSERT(data.fCanvas->getGrContext() == context);
if (!data.fPaint) {
SkRect clipBounds;
if (!data.fCanvas->getClipBounds(&clipBounds)) {
continue;
}
SkMatrix initialMatrix = data.fCanvas->getTotalMatrix();
initialMatrix.preConcat(data.fMatrix);
GrRenderTarget* rt = data.fCanvas->internal_private_accessTopLayerRenderTarget();
SkASSERT(rt);
// TODO: sorting the cacheable layers from smallest to largest
// would improve the packing and reduce the number of swaps
// TODO: another optimization would be to make a first pass to
// lock any required layer that is already in the atlas
GrLayerHoister::FindLayersToAtlas(context, data.fPicture, initialMatrix,
clipBounds,
&atlasedNeedRendering, &atlasedRecycled,
rt->numColorSamples());
}
}
GrLayerHoister::DrawLayersToAtlas(context, atlasedNeedRendering);
SkTDArray<GrHoistedLayer> needRendering, recycled;
#endif
for (int i = 0; i < count; ++i) {
const DrawData& data = fGPUDrawData[i];
SkCanvas* canvas = data.fCanvas;
const SkPicture* picture = data.fPicture;
#if !defined(SK_IGNORE_GPU_LAYER_HOISTING) && SK_SUPPORT_GPU
if (!data.fPaint) {
SkRect clipBounds;
if (!canvas->getClipBounds(&clipBounds)) {
continue;
}
SkAutoCanvasMatrixPaint acmp(canvas, &data.fMatrix, data.fPaint, picture->cullRect());
const SkMatrix initialMatrix = canvas->getTotalMatrix();
GrRenderTarget* rt = data.fCanvas->internal_private_accessTopLayerRenderTarget();
SkASSERT(rt);
// Find the layers required by this canvas. It will return atlased
// layers in the 'recycled' list since they have already been drawn.
GrLayerHoister::FindLayersToHoist(context, picture, initialMatrix,
clipBounds, &needRendering, &recycled,
rt->numColorSamples());
GrLayerHoister::DrawLayers(context, needRendering);
// Render the entire picture using new layers
GrRecordReplaceDraw(picture, canvas, context->getLayerCache(),
initialMatrix, NULL);
GrLayerHoister::UnlockLayers(context, needRendering);
GrLayerHoister::UnlockLayers(context, recycled);
needRendering.rewind();
recycled.rewind();
//.........这里部分代码省略.........