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Issue 1621753002:
First rough draft of skiaserve (Closed)
Base URL: https://skia.googlesource.com/skia.git@master| Index: tools/skiaserve/skiaserve.cpp |
| diff --git a/tools/skiaserve/skiaserve.cpp b/tools/skiaserve/skiaserve.cpp |
| new file mode 100644 |
| index 0000000000000000000000000000000000000000..37a8d906f61a3b83823d3f7db92cc89cf3f26a73 |
| --- /dev/null |
| +++ b/tools/skiaserve/skiaserve.cpp |
| @@ -0,0 +1,182 @@ |
| +/* |
| + * 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; |
| +} |
| + |
| +SkString generateTemplate(SkString source) { |
|
ethannicholas
2016/01/22 17:09:51
Is the fact that the HTML is hard-coded here just
mtklein
2016/01/22 17:11:57
(If not, you don't really need a server.)
|
| + 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 |
