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Unified Diff: tools/skiaserve/skiaserve.cpp

Issue 1621753002: First rough draft of skiaserve (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: tweaks Created 4 years, 11 months ago
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Index: tools/skiaserve/skiaserve.cpp
diff --git a/tools/skiaserve/skiaserve.cpp b/tools/skiaserve/skiaserve.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..effd28973c226bd007a98b7e185b63aa04001d58
--- /dev/null
+++ b/tools/skiaserve/skiaserve.cpp
@@ -0,0 +1,183 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "GrCaps.h"
+#include "GrContextFactory.h"
+#include "SkCanvas.h"
+#include "SkCommandLineFlags.h"
+#include "SkOSFile.h"
+#include <SkPicture.h>
+#include "SkStream.h"
+#include "SkSurface.h"
+
+// temporary junk
+#include "SkGradientShader.h"
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/select.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <fcntl.h>
+#include <microhttpd.h>
+
+// To get image decoders linked in we have to do the below magic
+#include "SkForceLinking.h"
+#include "SkImageDecoder.h"
+__SK_FORCE_IMAGE_DECODER_LINKING;
+
+// TODO make this configurable
+#define PORT 8888
+
+DEFINE_string(dir, "skps", "Directory to read skp.");
+DEFINE_string(name, "desk_carsvg", "skp to load.");
+DEFINE_bool(useTemplate, true, "whether or not to use the skdebugger template string.");
+
+// TODO probably want to make this configurable
+static const int kImageWidth = 1920;
+static const int kImageHeight = 1080;
+
+// TODO factor this out into functions, also handle CPU path
+SkData* setupAndDrawToCanvas(const char* path, SkString* error) {
+ GrContextOptions grContextOpts;
+ SkAutoTDelete<GrContextFactory> factory(new GrContextFactory(grContextOpts));
+
+ GrContext* context = factory->get(GrContextFactory::kNative_GLContextType,
+ GrContextFactory::kNone_GLContextOptions);
+ int maxRTSize = context->caps()->maxRenderTargetSize();
+ SkImageInfo info = SkImageInfo::Make(SkTMin(kImageWidth, maxRTSize),
+ SkTMin(kImageHeight, maxRTSize),
+ kN32_SkColorType, kPremul_SkAlphaType);
+ uint32_t flags = 0;
+ SkSurfaceProps props(flags, SkSurfaceProps::kLegacyFontHost_InitType);
+ SkAutoTUnref<SkSurface> surface(SkSurface::NewRenderTarget(context,
+ SkSurface::kNo_Budgeted, info,
+ 0, &props));
+ SkASSERT(surface.get());
+
+ SkGLContext* gl = factory->getContextInfo(GrContextFactory::kNative_GLContextType,
+ GrContextFactory::kNone_GLContextOptions).fGLContext;
+ gl->makeCurrent();
+
+ // draw
+ SkAutoTDelete<SkStream> stream(SkStream::NewFromFile(path));
+ if (stream.get() == nullptr) {
+ error->appendf("Could not read %s.\n", path);
+ return nullptr;
+ }
+
+ SkAutoTUnref<SkPicture> pic(SkPicture::CreateFromStream(stream.get()));
+ if (pic.get() == nullptr) {
+ error->appendf("Could not read %s as an SkPicture.\n", path);
+ return nullptr;
+ }
+
+ SkCanvas* canvas = surface->getCanvas();
+ canvas->drawPicture(pic);
+
+ // capture pixels
+ SkBitmap bmp;
+ bmp.setInfo(canvas->imageInfo());
+ if (!canvas->readPixels(&bmp, 0, 0)) {
+ error->appendf("Can't read canvas pixels.\n");
+ return nullptr;
+ }
+
+ // write to png
+ SkData* data = SkImageEncoder::EncodeData(bmp, SkImageEncoder::kPNG_Type, 100);
+ if (!data) {
+ error->appendf("Can't encode a PNG.\n");
+ return nullptr;
+ }
+ return data;
+}
+
+// TODO move to template file
+SkString generateTemplate(SkString source) {
+ SkString debuggerTemplate;
+ debuggerTemplate.appendf(
+ "<!DOCTYPE html>\n"
+ "<html>\n"
+ "<head>\n"
+ " <title>SkDebugger</title>\n"
+ " <meta charset=\"utf-8\" />\n"
+ " <meta http-equiv=\"X-UA-Compatible\" content=\"IE=egde,chrome=1\">\n"
+ " <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n"
+ " <script src=\"%s/res/js/core.js\" type=\"text/javascript\" charset=\"utf-8\"></script>\n"
+ " <link href=\"%s/res/vul/elements.html\" rel=\"import\" />\n"
+ "</head>\n"
+ "<body class=\"fullbleed layout vertical\">\n"
+ " <debugger-app-sk>This is the app."
+ " </debugger-app-sk>\n"
+ "</body>\n"
+ "</html>", source.c_str(), source.c_str());
+ return debuggerTemplate;
+
+}
+
+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) {
+ printf ("New %s request for %s using version %s\n", method, url, version);
+
+ struct MHD_Response* response;
+
+ // serve html to root
+ // TODO better url handling
+ int ret;
+ if (0 == strcmp("/", url)) {
+ SkString debuggerTemplate = generateTemplate(SkString("http://debugger.skia.org"));
+
+ response = MHD_create_response_from_buffer(debuggerTemplate.size(),
+ (void*)const_cast<char*>(debuggerTemplate.c_str()),
+ MHD_RESPMEM_MUST_COPY);
+ ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
+ MHD_destroy_response(response);
+ return MHD_YES;
+ }
+
+ // otherwise serve an image
+ // TODO take from post
+ SkString resourceName;
+ resourceName.appendf("%s/%s.skp", FLAGS_dir[0], FLAGS_name[0]);
+ SkDebugf("Loading skp: %s\n", resourceName.c_str());
+
+ SkString error;
+ SkAutoTUnref<SkData> data(setupAndDrawToCanvas(resourceName.c_str(), &error));
+ if (!data) {
+ // TODO send error
+ return MHD_YES;
+ }
+
+ response = MHD_create_response_from_buffer(data->size(), const_cast<void*>(data->data()),
+ MHD_RESPMEM_MUST_COPY);
+ MHD_add_response_header(response, "Content-Type", "image/png");
+ ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
+ MHD_destroy_response(response);
+ return ret;
+}
+
+int skiaserve_main() {
+ struct MHD_Daemon* daemon;
+ daemon = MHD_start_daemon(MHD_USE_SELECT_INTERNALLY, PORT, NULL, NULL,
+ &answer_to_connection, NULL, 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
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