873d624b80
BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1676403002 Review URL: https://codereview.chromium.org/1676403002
556 lines
19 KiB
C++
556 lines
19 KiB
C++
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "GrCaps.h"
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#include "GrContextFactory.h"
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#include "SkCanvas.h"
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#include "SkCommandLineFlags.h"
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#include "SkDebugCanvas.h"
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#include "SkJSONCanvas.h"
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#include "SkJSONCPP.h"
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#include "SkPicture.h"
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#include "SkPictureRecorder.h"
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#include "SkPixelSerializer.h"
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#include "SkStream.h"
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#include "SkSurface.h"
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#include "UrlDataManager.h"
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#include <sys/socket.h>
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#include <microhttpd.h>
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// To get image decoders linked in we have to do the below magic
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#include "SkForceLinking.h"
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#include "SkImageDecoder.h"
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__SK_FORCE_IMAGE_DECODER_LINKING;
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DEFINE_string(source, "https://debugger.skia.org", "Where to load the web UI from.");
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DEFINE_string(faviconDir, "tools/skiaserve", "The directory of the favicon");
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DEFINE_int32(port, 8888, "The port to listen on.");
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// TODO probably want to make this configurable
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static const int kImageWidth = 1920;
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static const int kImageHeight = 1080;
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// TODO move to template file
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SkString generateTemplate(SkString source) {
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SkString debuggerTemplate;
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debuggerTemplate.appendf(
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"<!DOCTYPE html>\n"
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"<html>\n"
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"<head>\n"
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" <title>SkDebugger</title>\n"
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" <meta charset=\"utf-8\" />\n"
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" <meta http-equiv=\"X-UA-Compatible\" content=\"IE=egde,chrome=1\">\n"
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" <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n"
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" <script src=\"%s/res/js/core.js\" type=\"text/javascript\" charset=\"utf-8\"></script>\n"
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" <link href=\"%s/res/vul/elements.html\" rel=\"import\" />\n"
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"</head>\n"
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"<body class=\"fullbleed layout vertical\">\n"
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" <debugger-app-sk>This is the app."
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" </debugger-app-sk>\n"
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"</body>\n"
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"</html>", source.c_str(), source.c_str());
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return debuggerTemplate;
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}
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struct UploadContext {
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SkDynamicMemoryWStream fStream;
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MHD_PostProcessor* fPostProcessor;
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MHD_Connection* connection;
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};
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struct Request {
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Request(SkString rootUrl) : fUploadContext(nullptr), fUrlDataManager(rootUrl) {}
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UploadContext* fUploadContext;
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SkAutoTUnref<SkPicture> fPicture;
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SkAutoTUnref<SkDebugCanvas> fDebugCanvas;
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UrlDataManager fUrlDataManager;
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};
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// TODO factor this out into functions, also handle CPU path
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SkSurface* setupSurface(GrContextFactory* factory) {
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GrContext* context = factory->get(GrContextFactory::kNative_GLContextType,
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GrContextFactory::kNone_GLContextOptions);
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int maxRTSize = context->caps()->maxRenderTargetSize();
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SkImageInfo info = SkImageInfo::Make(SkTMin(kImageWidth, maxRTSize),
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SkTMin(kImageHeight, maxRTSize),
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kN32_SkColorType, kPremul_SkAlphaType);
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uint32_t flags = 0;
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SkSurfaceProps props(flags, SkSurfaceProps::kLegacyFontHost_InitType);
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SkSurface* surface = SkSurface::NewRenderTarget(context, SkSurface::kNo_Budgeted, info, 0,
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&props);
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SkASSERT(surface);
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SkGLContext* gl = factory->getContextInfo(GrContextFactory::kNative_GLContextType,
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GrContextFactory::kNone_GLContextOptions).fGLContext;
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gl->makeCurrent();
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return surface;
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}
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SkData* writeCanvasToPng(SkCanvas* canvas) {
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// capture pixels
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SkBitmap bmp;
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bmp.setInfo(canvas->imageInfo());
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if (!canvas->readPixels(&bmp, 0, 0)) {
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fprintf(stderr, "Can't read pixels\n");
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return nullptr;
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}
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// write to png
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// TODO encoding to png can be quite slow, we should investigate bmp
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SkData* png = SkImageEncoder::EncodeData(bmp, SkImageEncoder::kPNG_Type, 100);
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if (!png) {
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fprintf(stderr, "Can't encode to png\n");
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return nullptr;
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}
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return png;
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}
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SkData* setupAndDrawToCanvasReturnPng(SkDebugCanvas* debugCanvas, int n) {
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GrContextOptions grContextOpts;
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SkAutoTDelete<GrContextFactory> factory(new GrContextFactory(grContextOpts));
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SkAutoTUnref<SkSurface> surface(setupSurface(factory.get()));
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SkASSERT(debugCanvas);
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SkCanvas* canvas = surface->getCanvas();
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debugCanvas->drawTo(canvas, n);
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return writeCanvasToPng(canvas);
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}
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SkSurface* setupCpuSurface() {
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SkImageInfo info = SkImageInfo::Make(kImageWidth, kImageHeight, kN32_SkColorType,
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kPremul_SkAlphaType);
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return SkSurface::NewRaster(info);
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}
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static const size_t kBufferSize = 1024;
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static int process_upload_data(void* cls, enum MHD_ValueKind kind,
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const char* key, const char* filename,
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const char* content_type, const char* transfer_encoding,
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const char* data, uint64_t off, size_t size) {
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struct UploadContext* uc = reinterpret_cast<UploadContext*>(cls);
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if (0 != size) {
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uc->fStream.write(data, size);
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}
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return MHD_YES;
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}
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static int SendData(MHD_Connection* connection, const SkData* data, const char* type,
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bool setContentDisposition = false, const char* dispositionString = nullptr) {
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MHD_Response* response = MHD_create_response_from_buffer(data->size(),
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const_cast<void*>(data->data()),
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MHD_RESPMEM_MUST_COPY);
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MHD_add_response_header(response, "Content-Type", type);
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if (setContentDisposition) {
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MHD_add_response_header(response, "Content-Disposition", dispositionString);
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}
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int ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
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MHD_destroy_response(response);
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return ret;
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}
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static int SendJSON(MHD_Connection* connection, SkDebugCanvas* debugCanvas, int n) {
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SkDynamicMemoryWStream stream;
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SkAutoTUnref<SkJSONCanvas> jsonCanvas(new SkJSONCanvas(kImageWidth, kImageHeight, stream));
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debugCanvas->drawTo(jsonCanvas, n);
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jsonCanvas->finish();
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SkAutoTUnref<SkData> data(stream.copyToData());
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return SendData(connection, data, "application/json");
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}
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static int SendTemplate(MHD_Connection* connection, bool redirect = false,
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const char* redirectUrl = nullptr) {
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SkString debuggerTemplate = generateTemplate(SkString(FLAGS_source[0]));
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MHD_Response* response = MHD_create_response_from_buffer(
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debuggerTemplate.size(),
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(void*) const_cast<char*>(debuggerTemplate.c_str()),
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MHD_RESPMEM_MUST_COPY);
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MHD_add_response_header (response, "Access-Control-Allow-Origin", "*");
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int status = MHD_HTTP_OK;
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if (redirect) {
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MHD_add_response_header (response, "Location", redirectUrl);
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status = MHD_HTTP_SEE_OTHER;
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}
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int ret = MHD_queue_response(connection, status, response);
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MHD_destroy_response(response);
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return ret;
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}
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class UrlHandler {
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public:
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virtual ~UrlHandler() {}
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virtual bool canHandle(const char* method, const char* url) = 0;
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virtual int handle(Request* request, MHD_Connection* connection,
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const char* url, const char* method,
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const char* upload_data, size_t* upload_data_size) = 0;
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};
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class CmdHandler : public UrlHandler {
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public:
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bool canHandle(const char* method, const char* url) override {
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const char* kBasePath = "/cmd";
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return 0 == strncmp(url, kBasePath, strlen(kBasePath));
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}
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int handle(Request* request, MHD_Connection* connection,
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const char* url, const char* method,
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const char* upload_data, size_t* upload_data_size) override {
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SkTArray<SkString> commands;
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SkStrSplit(url, "/", &commands);
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if (!request->fPicture.get() || commands.count() > 3) {
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return MHD_NO;
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}
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// /cmd or /cmd/N or /cmd/N/[0|1]
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if (commands.count() == 1 && 0 == strcmp(method, MHD_HTTP_METHOD_GET)) {
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int n = request->fDebugCanvas->getSize() - 1;
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return SendJSON(connection, request->fDebugCanvas, n);
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}
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// /cmd/N, for now only delete supported
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if (commands.count() == 2 && 0 == strcmp(method, MHD_HTTP_METHOD_DELETE)) {
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int n;
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sscanf(commands[1].c_str(), "%d", &n);
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request->fDebugCanvas->deleteDrawCommandAt(n);
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return MHD_YES;
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}
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// /cmd/N/[0|1]
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if (commands.count() == 3 && 0 == strcmp(method, MHD_HTTP_METHOD_POST)) {
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int n, toggle;
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sscanf(commands[1].c_str(), "%d", &n);
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sscanf(commands[2].c_str(), "%d", &toggle);
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request->fDebugCanvas->toggleCommand(n, toggle);
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return MHD_YES;
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}
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return MHD_NO;
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}
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};
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class ImgHandler : public UrlHandler {
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public:
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bool canHandle(const char* method, const char* url) override {
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static const char* kBasePath = "/img";
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return 0 == strcmp(method, MHD_HTTP_METHOD_GET) &&
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0 == strncmp(url, kBasePath, strlen(kBasePath));
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}
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int handle(Request* request, MHD_Connection* connection,
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const char* url, const char* method,
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const char* upload_data, size_t* upload_data_size) override {
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SkTArray<SkString> commands;
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SkStrSplit(url, "/", &commands);
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if (!request->fPicture.get() || commands.count() > 2) {
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return MHD_NO;
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}
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int n;
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// /img or /img/N
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if (commands.count() == 1) {
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n = request->fDebugCanvas->getSize() - 1;
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} else {
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sscanf(commands[1].c_str(), "%d", &n);
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}
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SkAutoTUnref<SkData> data(setupAndDrawToCanvasReturnPng(request->fDebugCanvas, n));
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return SendData(connection, data, "image/png");
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}
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};
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class PostHandler : public UrlHandler {
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public:
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bool canHandle(const char* method, const char* url) override {
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return 0 == strcmp(method, MHD_HTTP_METHOD_POST) &&
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0 == strcmp(url, "/new");
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}
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int handle(Request* request, MHD_Connection* connection,
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const char* url, const char* method,
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const char* upload_data, size_t* upload_data_size) override {
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UploadContext* uc = request->fUploadContext;
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// New connection
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if (!uc) {
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// TODO make this a method on request
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uc = new UploadContext;
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uc->connection = connection;
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uc->fPostProcessor = MHD_create_post_processor(connection, kBufferSize,
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&process_upload_data, uc);
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SkASSERT(uc->fPostProcessor);
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request->fUploadContext = uc;
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return MHD_YES;
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}
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// in process upload
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if (0 != *upload_data_size) {
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SkASSERT(uc->fPostProcessor);
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MHD_post_process(uc->fPostProcessor, upload_data, *upload_data_size);
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*upload_data_size = 0;
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return MHD_YES;
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}
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// end of upload
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MHD_destroy_post_processor(uc->fPostProcessor);
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uc->fPostProcessor = nullptr;
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// parse picture from stream
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request->fPicture.reset(
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SkPicture::CreateFromStream(request->fUploadContext->fStream.detachAsStream()));
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if (!request->fPicture.get()) {
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fprintf(stderr, "Could not create picture from stream.\n");
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return MHD_NO;
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}
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// pour picture into debug canvas
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request->fDebugCanvas.reset(new SkDebugCanvas(kImageWidth, kImageHeight));
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request->fDebugCanvas->drawPicture(request->fPicture);
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// clear upload context
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delete request->fUploadContext;
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request->fUploadContext = nullptr;
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return SendTemplate(connection, true, "/");
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}
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};
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class DownloadHandler : public UrlHandler {
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public:
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bool canHandle(const char* method, const char* url) override {
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return 0 == strcmp(method, MHD_HTTP_METHOD_GET) &&
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0 == strcmp(url, "/download");
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}
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int handle(Request* request, MHD_Connection* connection,
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const char* url, const char* method,
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const char* upload_data, size_t* upload_data_size) override {
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if (!request->fPicture.get()) {
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return MHD_NO;
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}
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// TODO move to a function
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// Playback into picture recorder
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SkPictureRecorder recorder;
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SkCanvas* canvas = recorder.beginRecording(kImageWidth, kImageHeight);
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request->fDebugCanvas->draw(canvas);
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SkAutoTUnref<SkPicture> picture(recorder.endRecording());
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SkDynamicMemoryWStream outStream;
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SkAutoTUnref<SkPixelSerializer> serializer(SkImageEncoder::CreatePixelSerializer());
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picture->serialize(&outStream, serializer);
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SkAutoTUnref<SkData> data(outStream.copyToData());
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// TODO fancier name handling
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return SendData(connection, data, "application/octet-stream", true,
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"attachment; filename=something.skp;");
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}
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};
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class InfoHandler : public UrlHandler {
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public:
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bool canHandle(const char* method, const char* url) override {
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const char* kBaseName = "/info";
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return 0 == strcmp(method, MHD_HTTP_METHOD_GET) &&
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0 == strncmp(url, kBaseName, strlen(kBaseName));
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}
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int handle(Request* request, MHD_Connection* connection,
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const char* url, const char* method,
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const char* upload_data, size_t* upload_data_size) override {
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SkTArray<SkString> commands;
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SkStrSplit(url, "/", &commands);
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if (!request->fPicture.get() || commands.count() > 2) {
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return MHD_NO;
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}
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// drawTo
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SkAutoTUnref<SkSurface> surface(setupCpuSurface());
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SkCanvas* canvas = surface->getCanvas();
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int n;
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// /info or /info/N
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if (commands.count() == 1) {
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n = request->fDebugCanvas->getSize() - 1;
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} else {
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sscanf(commands[1].c_str(), "%d", &n);
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}
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// TODO this is really slow and we should cache the matrix and clip
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request->fDebugCanvas->drawTo(canvas, n);
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// make some json
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SkMatrix vm = request->fDebugCanvas->getCurrentMatrix();
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SkIRect clip = request->fDebugCanvas->getCurrentClip();
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Json::Value info(Json::objectValue);
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info["ViewMatrix"] = SkJSONCanvas::MakeMatrix(vm);
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info["ClipRect"] = SkJSONCanvas::MakeIRect(clip);
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std::string json = Json::FastWriter().write(info);
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// We don't want the null terminator so strlen is correct
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SkAutoTUnref<SkData> data(SkData::NewWithCopy(json.c_str(), strlen(json.c_str())));
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return SendData(connection, data, "application/json");
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}
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};
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class DataHandler : public UrlHandler {
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public:
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bool canHandle(const char* method, const char* url) override {
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static const char* kBaseUrl = "/data";
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return 0 == strcmp(method, MHD_HTTP_METHOD_GET) &&
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0 == strncmp(url, kBaseUrl, strlen(kBaseUrl));
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}
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int handle(Request* request, MHD_Connection* connection,
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const char* url, const char* method,
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const char* upload_data, size_t* upload_data_size) override {
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SkTArray<SkString> commands;
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SkStrSplit(url, "/", &commands);
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if (!request->fPicture.get() || commands.count() != 2) {
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return MHD_NO;
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}
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SkAutoTUnref<UrlDataManager::UrlData> urlData(
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SkRef(request->fUrlDataManager.getDataFromUrl(SkString(url))));
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if (urlData) {
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return SendData(connection, urlData->fData.get(), urlData->fContentType.c_str());
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}
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return MHD_NO;
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}
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};
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class FaviconHandler : public UrlHandler {
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public:
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bool canHandle(const char* method, const char* url) override {
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return 0 == strcmp(method, MHD_HTTP_METHOD_GET) &&
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0 == strcmp(url, "/favicon.ico");
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}
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int handle(Request* request, MHD_Connection* connection,
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const char* url, const char* method,
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const char* upload_data, size_t* upload_data_size) override {
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SkString dir(FLAGS_faviconDir[0]);
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dir.append("/favicon.ico");
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FILE* ico = fopen(dir.c_str(), "r");
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SkAutoTUnref<SkData> data(SkData::NewFromFILE(ico));
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int ret = SendData(connection, data, "image/vnd.microsoft.icon");
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fclose(ico);
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return ret;
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}
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};
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class RootHandler : public UrlHandler {
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public:
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bool canHandle(const char* method, const char* url) override {
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return 0 == strcmp(method, MHD_HTTP_METHOD_GET) &&
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0 == strcmp(url, "/");
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}
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int handle(Request* request, MHD_Connection* connection,
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const char* url, const char* method,
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const char* upload_data, size_t* upload_data_size) override {
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return SendTemplate(connection);
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}
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};
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class UrlManager {
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public:
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UrlManager() {
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// Register handlers
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fHandlers.push_back(new RootHandler);
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fHandlers.push_back(new PostHandler);
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fHandlers.push_back(new ImgHandler);
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fHandlers.push_back(new CmdHandler);
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fHandlers.push_back(new InfoHandler);
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fHandlers.push_back(new DownloadHandler);
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fHandlers.push_back(new DataHandler);
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fHandlers.push_back(new FaviconHandler);
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}
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|
|
|
~UrlManager() {
|
|
for (int i = 0; i < fHandlers.count(); i++) { delete fHandlers[i]; }
|
|
}
|
|
|
|
// This is clearly not efficient for a large number of urls and handlers
|
|
int invoke(Request* request, MHD_Connection* connection, const char* url, const char* method,
|
|
const char* upload_data, size_t* upload_data_size) const {
|
|
for (int i = 0; i < fHandlers.count(); i++) {
|
|
if (fHandlers[i]->canHandle(method, url)) {
|
|
return fHandlers[i]->handle(request, connection, url, method, upload_data,
|
|
upload_data_size);
|
|
}
|
|
}
|
|
return MHD_NO;
|
|
}
|
|
|
|
private:
|
|
SkTArray<UrlHandler*> fHandlers;
|
|
};
|
|
|
|
const UrlManager kUrlManager;
|
|
|
|
int answer_to_connection(void* cls, struct MHD_Connection* connection,
|
|
const char* url, const char* method, const char* version,
|
|
const char* upload_data, size_t* upload_data_size,
|
|
void** con_cls) {
|
|
SkDebugf("New %s request for %s using version %s\n", method, url, version);
|
|
|
|
Request* request = reinterpret_cast<Request*>(cls);
|
|
int result = kUrlManager.invoke(request, connection, url, method, upload_data,
|
|
upload_data_size);
|
|
if (MHD_NO == result) {
|
|
fprintf(stderr, "Invalid method and / or url: %s %s\n", method, url);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
int skiaserve_main() {
|
|
Request request(SkString("/data")); // This simple server has one request
|
|
struct MHD_Daemon* daemon;
|
|
// TODO Add option to bind this strictly to an address, e.g. localhost, for security.
|
|
daemon = MHD_start_daemon(MHD_USE_SELECT_INTERNALLY, FLAGS_port, nullptr, nullptr,
|
|
&answer_to_connection, &request,
|
|
MHD_OPTION_END);
|
|
if (NULL == daemon) {
|
|
return 1;
|
|
}
|
|
|
|
getchar();
|
|
MHD_stop_daemon(daemon);
|
|
return 0;
|
|
}
|
|
|
|
#if !defined SK_BUILD_FOR_IOS
|
|
int main(int argc, char** argv) {
|
|
SkCommandLineFlags::Parse(argc, argv);
|
|
return skiaserve_main();
|
|
}
|
|
#endif
|