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Issue 1621753002:
First rough draft of skiaserve (Closed)
Base URL: https://skia.googlesource.com/skia.git@master| OLD | NEW |
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| 1 /* | |
| 2 * Copyright 2016 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #include "GrCaps.h" | |
| 9 #include "GrContextFactory.h" | |
| 10 #include "SkCanvas.h" | |
| 11 #include "SkCommandLineFlags.h" | |
| 12 #include "SkOSFile.h" | |
| 13 #include <SkPicture.h> | |
| 14 #include "SkStream.h" | |
| 15 #include "SkSurface.h" | |
| 16 | |
| 17 // temporary junk | |
| 18 #include "SkGradientShader.h" | |
| 19 | |
| 20 #include <stdio.h> | |
| 21 #include <sys/types.h> | |
| 22 #include <sys/select.h> | |
| 23 #include <sys/stat.h> | |
| 24 #include <sys/socket.h> | |
| 25 #include <fcntl.h> | |
| 26 #include <microhttpd.h> | |
| 27 | |
| 28 // To get image decoders linked in we have to do the below magic | |
| 29 #include "SkForceLinking.h" | |
| 30 #include "SkImageDecoder.h" | |
| 31 __SK_FORCE_IMAGE_DECODER_LINKING; | |
| 32 | |
| 33 // TODO make this configurable | |
| 34 #define PORT 8888 | |
| 35 | |
| 36 DEFINE_string(dir, "skps", "Directory to read skp."); | |
| 37 DEFINE_string(name, "desk_carsvg", "skp to load."); | |
| 38 DEFINE_bool(useTemplate, true, "whether or not to use the skdebugger template st ring."); | |
| 39 | |
| 40 // TODO probably want to make this configurable | |
| 41 static const int kImageWidth = 1920; | |
| 42 static const int kImageHeight = 1080; | |
| 43 | |
| 44 // TODO factor this out into functions, also handle CPU path | |
| 45 SkData* setupAndDrawToCanvas(const char* path, SkString* error) { | |
| 46 GrContextOptions grContextOpts; | |
| 47 SkAutoTDelete<GrContextFactory> factory(new GrContextFactory(grContextOpts)) ; | |
| 48 | |
| 49 GrContext* context = factory->get(GrContextFactory::kNative_GLContextType, | |
| 50 GrContextFactory::kNone_GLContextOptions); | |
| 51 int maxRTSize = context->caps()->maxRenderTargetSize(); | |
| 52 SkImageInfo info = SkImageInfo::Make(SkTMin(kImageWidth, maxRTSize), | |
| 53 SkTMin(kImageHeight, maxRTSize), | |
| 54 kN32_SkColorType, kPremul_SkAlphaType); | |
| 55 uint32_t flags = 0; | |
| 56 SkSurfaceProps props(flags, SkSurfaceProps::kLegacyFontHost_InitType); | |
| 57 SkAutoTUnref<SkSurface> surface(SkSurface::NewRenderTarget(context, | |
| 58 SkSurface::kNo_Bu dgeted, info, | |
| 59 0, &props)); | |
| 60 SkASSERT(surface.get()); | |
| 61 | |
| 62 SkGLContext* gl = factory->getContextInfo(GrContextFactory::kNative_GLContex tType, | |
| 63 GrContextFactory::kNone_GLContextO ptions).fGLContext; | |
| 64 gl->makeCurrent(); | |
| 65 | |
| 66 // draw | |
| 67 SkAutoTDelete<SkStream> stream(SkStream::NewFromFile(path)); | |
| 68 if (stream.get() == nullptr) { | |
| 69 error->appendf("Could not read %s.\n", path); | |
| 70 return nullptr; | |
| 71 } | |
| 72 | |
| 73 SkAutoTUnref<SkPicture> pic(SkPicture::CreateFromStream(stream.get())); | |
| 74 if (pic.get() == nullptr) { | |
| 75 error->appendf("Could not read %s as an SkPicture.\n", path); | |
| 76 return nullptr; | |
| 77 } | |
| 78 | |
| 79 SkCanvas* canvas = surface->getCanvas(); | |
| 80 canvas->drawPicture(pic); | |
| 81 | |
| 82 // capture pixels | |
| 83 SkBitmap bmp; | |
| 84 bmp.setInfo(canvas->imageInfo()); | |
| 85 if (!canvas->readPixels(&bmp, 0, 0)) { | |
| 86 error->appendf("Can't read canvas pixels.\n"); | |
| 87 return nullptr; | |
| 88 } | |
| 89 | |
| 90 // write to png | |
| 91 SkData* data = SkImageEncoder::EncodeData(bmp, SkImageEncoder::kPNG_Type, 10 0); | |
| 92 if (!data) { | |
| 93 error->appendf("Can't encode a PNG.\n"); | |
| 94 return nullptr; | |
| 95 } | |
| 96 return data; | |
| 97 } | |
| 98 | |
| 99 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.)
| |
| 100 SkString debuggerTemplate; | |
| 101 debuggerTemplate.appendf( | |
| 102 "<!DOCTYPE html>\n" | |
| 103 "<html>\n" | |
| 104 "<head>\n" | |
| 105 " <title>SkDebugger</title>\n" | |
| 106 " <meta charset=\"utf-8\" />\n" | |
| 107 " <meta http-equiv=\"X-UA-Compatible\" content=\"IE=egde,chrome=1\">\ n" | |
| 108 " <meta name=\"viewport\" content=\"width=device-width, initial-scale =1.0\">\n" | |
| 109 " <script src=\"%s/res/js/core.js\" type=\"text/javascript\" charset= \"utf-8\"></script>\n" | |
| 110 " <link href=\"%s/res/vul/elements.html\" rel=\"import\" />\n" | |
| 111 "</head>\n" | |
| 112 "<body class=\"fullbleed layout vertical\">\n" | |
| 113 " <debugger-app-sk>This is the app." | |
| 114 " </debugger-app-sk>\n" | |
| 115 "</body>\n" | |
| 116 "</html>", source.c_str(), source.c_str()); | |
| 117 return debuggerTemplate; | |
| 118 | |
| 119 } | |
| 120 | |
| 121 int answer_to_connection(void* cls, struct MHD_Connection* connection, | |
| 122 const char* url, const char* method, const char* versio n, | |
| 123 const char* upload_data, size_t* upload_data_size, | |
| 124 void** con_cls) { | |
| 125 printf ("New %s request for %s using version %s\n", method, url, version); | |
| 126 | |
| 127 struct MHD_Response* response; | |
| 128 | |
| 129 // serve html to root | |
| 130 // TODO better url handling | |
| 131 int ret; | |
| 132 if (0 == strcmp("/", url)) { | |
| 133 SkString debuggerTemplate = generateTemplate(SkString("http://debugger.s kia.org")); | |
| 134 | |
| 135 response = MHD_create_response_from_buffer(debuggerTemplate.size(), | |
| 136 (void*)const_cast<char*>(debu ggerTemplate.c_str()), | |
| 137 MHD_RESPMEM_MUST_COPY); | |
| 138 ret = MHD_queue_response(connection, MHD_HTTP_OK, response); | |
| 139 MHD_destroy_response(response); | |
| 140 return MHD_YES; | |
| 141 } | |
| 142 | |
| 143 // otherwise serve an image | |
| 144 // TODO take from post | |
| 145 SkString resourceName; | |
| 146 resourceName.appendf("%s/%s.skp", FLAGS_dir[0], FLAGS_name[0]); | |
| 147 SkDebugf("Loading skp: %s\n", resourceName.c_str()); | |
| 148 | |
| 149 SkString error; | |
| 150 SkAutoTUnref<SkData> data(setupAndDrawToCanvas(resourceName.c_str(), &error) ); | |
| 151 if (!data) { | |
| 152 // TODO send error | |
| 153 return MHD_YES; | |
| 154 } | |
| 155 | |
| 156 response = MHD_create_response_from_buffer(data->size(), const_cast<void*>(d ata->data()), | |
| 157 MHD_RESPMEM_MUST_COPY); | |
| 158 MHD_add_response_header(response, "Content-Type", "image/png"); | |
| 159 ret = MHD_queue_response(connection, MHD_HTTP_OK, response); | |
| 160 MHD_destroy_response(response); | |
| 161 return ret; | |
| 162 } | |
| 163 | |
| 164 int skiaserve_main() { | |
| 165 struct MHD_Daemon* daemon; | |
| 166 daemon = MHD_start_daemon(MHD_USE_SELECT_INTERNALLY, PORT, NULL, NULL, | |
| 167 &answer_to_connection, NULL, MHD_OPTION_END); | |
| 168 if (NULL == daemon) { | |
| 169 return 1; | |
| 170 } | |
| 171 | |
| 172 getchar(); | |
| 173 MHD_stop_daemon(daemon); | |
| 174 return 0; | |
| 175 } | |
| 176 | |
| 177 #if !defined SK_BUILD_FOR_IOS | |
| 178 int main(int argc, char** argv) { | |
| 179 SkCommandLineFlags::Parse(argc, argv); | |
| 180 return skiaserve_main(); | |
| 181 } | |
| 182 #endif | |
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