Use SkJSONWriter for viewer UI serialization

+ drop JsonCPP dependency.

Bug: skia:
Change-Id: I81539cea6e495fe6d55d155ae49e7ac4a79faad6
Reviewed-on: https://skia-review.googlesource.com/135628
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
This commit is contained in:
Florin Malita 2018-06-18 21:23:06 -04:00 committed by Skia Commit-Bot
parent 929e436c98
commit b632df701d
3 changed files with 90 additions and 73 deletions

View File

@ -1996,7 +1996,6 @@ if (skia_enable_tools) {
"modules/skottie",
"modules/sksg",
"//third_party/imgui",
"//third_party/jsoncpp",
]
}

View File

@ -23,6 +23,7 @@
#include "SkFontMgrPriv.h"
#include "SkGraphics.h"
#include "SkImagePriv.h"
#include "SkJSONWriter.h"
#include "SkMakeUnique.h"
#include "SkOSFile.h"
#include "SkOSPath.h"
@ -532,8 +533,6 @@ Viewer::Viewer(int argc, char** argv, void* platformData)
}
void Viewer::initSlides() {
fAllSlideNames = Json::Value(Json::arrayValue);
using SlideFactory = sk_sp<Slide>(*)(const SkString& name, const SkString& path);
static const struct {
const char* fExtension;
@ -1849,6 +1848,24 @@ void Viewer::onIdle() {
}
}
template <typename OptionsFunc>
static void WriteStateObject(SkJSONWriter& writer, const char* name, const char* value,
OptionsFunc&& optionsFunc) {
writer.beginObject();
{
writer.appendString(kName , name);
writer.appendString(kValue, value);
writer.beginArray(kOptions);
{
optionsFunc(writer);
}
writer.endArray();
}
writer.endObject();
}
void Viewer::updateUIState() {
if (!fWindow) {
return;
@ -1857,85 +1874,89 @@ void Viewer::updateUIState() {
return; // Surface hasn't been created yet.
}
SkDynamicMemoryWStream memStream;
SkJSONWriter writer(&memStream);
writer.beginArray();
// Slide state
Json::Value slideState(Json::objectValue);
slideState[kName] = kSlideStateName;
slideState[kValue] = fSlides[fCurrentSlide]->getName().c_str();
if (fAllSlideNames.size() == 0) {
for(auto slide : fSlides) {
fAllSlideNames.append(Json::Value(slide->getName().c_str()));
}
}
slideState[kOptions] = fAllSlideNames;
WriteStateObject(writer, kSlideStateName, fSlides[fCurrentSlide]->getName().c_str(),
[this](SkJSONWriter& writer) {
for(const auto& slide : fSlides) {
writer.appendString(slide->getName().c_str());
}
});
// Backend state
Json::Value backendState(Json::objectValue);
backendState[kName] = kBackendStateName;
backendState[kValue] = kBackendTypeStrings[fBackendType];
backendState[kOptions] = Json::Value(Json::arrayValue);
for (auto str : kBackendTypeStrings) {
backendState[kOptions].append(Json::Value(str));
}
WriteStateObject(writer, kBackendStateName, kBackendTypeStrings[fBackendType],
[](SkJSONWriter& writer) {
for (const auto& str : kBackendTypeStrings) {
writer.appendString(str);
}
});
// MSAA state
Json::Value msaaState(Json::objectValue);
msaaState[kName] = kMSAAStateName;
msaaState[kValue] = fWindow->sampleCount();
msaaState[kOptions] = Json::Value(Json::arrayValue);
if (sk_app::Window::kRaster_BackendType == fBackendType) {
msaaState[kOptions].append(Json::Value(0));
} else {
for (int msaa : {0, 4, 8, 16}) {
msaaState[kOptions].append(Json::Value(msaa));
}
}
const auto countString = SkStringPrintf("%d", fWindow->sampleCount());
WriteStateObject(writer, kMSAAStateName, countString.c_str(),
[this](SkJSONWriter& writer) {
writer.appendS32(0);
if (sk_app::Window::kRaster_BackendType == fBackendType) {
return;
}
for (int msaa : {4, 8, 16}) {
writer.appendS32(msaa);
}
});
// Path renderer state
GpuPathRenderers pr = fWindow->getRequestedDisplayParams().fGrContextOptions.fGpuPathRenderers;
Json::Value prState(Json::objectValue);
prState[kName] = kPathRendererStateName;
prState[kValue] = gPathRendererNames[pr];
prState[kOptions] = Json::Value(Json::arrayValue);
const GrContext* ctx = fWindow->getGrContext();
if (!ctx) {
prState[kOptions].append("Software");
} else if (fWindow->sampleCount() > 1) {
prState[kOptions].append(gPathRendererNames[GpuPathRenderers::kDefault]);
prState[kOptions].append(gPathRendererNames[GpuPathRenderers::kAll]);
if (ctx->contextPriv().caps()->shaderCaps()->pathRenderingSupport()) {
prState[kOptions].append(gPathRendererNames[GpuPathRenderers::kStencilAndCover]);
}
prState[kOptions].append(gPathRendererNames[GpuPathRenderers::kTessellating]);
prState[kOptions].append(gPathRendererNames[GpuPathRenderers::kNone]);
} else {
prState[kOptions].append(gPathRendererNames[GpuPathRenderers::kDefault]);
prState[kOptions].append(gPathRendererNames[GpuPathRenderers::kAll]);
if (GrCoverageCountingPathRenderer::IsSupported(*ctx->contextPriv().caps())) {
prState[kOptions].append(gPathRendererNames[GpuPathRenderers::kCoverageCounting]);
}
prState[kOptions].append(gPathRendererNames[GpuPathRenderers::kSmall]);
prState[kOptions].append(gPathRendererNames[GpuPathRenderers::kTessellating]);
prState[kOptions].append(gPathRendererNames[GpuPathRenderers::kNone]);
}
WriteStateObject(writer, kPathRendererStateName, gPathRendererNames[pr].c_str(),
[this](SkJSONWriter& writer) {
const GrContext* ctx = fWindow->getGrContext();
if (!ctx) {
writer.appendString("Software");
} else {
const auto* caps = ctx->contextPriv().caps();
writer.appendString(gPathRendererNames[GpuPathRenderers::kDefault].c_str());
writer.appendString(gPathRendererNames[GpuPathRenderers::kAll].c_str());
if (fWindow->sampleCount() > 1) {
if (caps->shaderCaps()->pathRenderingSupport()) {
writer.appendString(
gPathRendererNames[GpuPathRenderers::kStencilAndCover].c_str());
}
} else {
if(GrCoverageCountingPathRenderer::IsSupported(*caps)) {
writer.appendString(
gPathRendererNames[GpuPathRenderers::kCoverageCounting].c_str());
}
writer.appendString(gPathRendererNames[GpuPathRenderers::kSmall].c_str());
}
writer.appendString(
gPathRendererNames[GpuPathRenderers::kTessellating].c_str());
writer.appendString(gPathRendererNames[GpuPathRenderers::kNone].c_str());
}
});
// Softkey state
Json::Value softkeyState(Json::objectValue);
softkeyState[kName] = kSoftkeyStateName;
softkeyState[kValue] = kSoftkeyHint;
softkeyState[kOptions] = Json::Value(Json::arrayValue);
softkeyState[kOptions].append(kSoftkeyHint);
for (const auto& softkey : fCommands.getCommandsAsSoftkeys()) {
softkeyState[kOptions].append(Json::Value(softkey.c_str()));
}
WriteStateObject(writer, kSoftkeyStateName, kSoftkeyHint,
[this](SkJSONWriter& writer) {
writer.appendString(kSoftkeyHint);
for (const auto& softkey : fCommands.getCommandsAsSoftkeys()) {
writer.appendString(softkey.c_str());
}
});
Json::Value state(Json::arrayValue);
state.append(slideState);
state.append(backendState);
state.append(msaaState);
state.append(prState);
state.append(softkeyState);
writer.endArray();
writer.flush();
fWindow->setUIState(state.toStyledString().c_str());
auto data = memStream.detachAsData();
// TODO: would be cool to avoid this copy
const SkString cstring(static_cast<const char*>(data->data()), data->size());
fWindow->setUIState(cstring.c_str());
}
void Viewer::onUIStateChanged(const SkString& stateName, const SkString& stateValue) {

View File

@ -15,7 +15,6 @@
#include "ImGuiLayer.h"
#include "SkAnimTimer.h"
#include "SkExecutor.h"
#include "SkJSONCPP.h"
#include "SkScan.h"
#include "SkTouchGesture.h"
#include "Slide.h"
@ -170,8 +169,6 @@ private:
SkTArray<std::function<void(void)>> fDeferredActions;
Json::Value fAllSlideNames; // cache all slide names for fast updateUIState
int fTileCnt;
int fThreadCnt;
std::unique_ptr<SkExecutor> fExecutor;