diff options
author | 2016-08-27 06:50:11 -0700 | |
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committer | 2016-08-27 06:50:11 -0700 | |
commit | cdc8942fd62e98e787f0c9ca9e317421df2bd00f (patch) | |
tree | dea987798c46d3d1e3186bc85977624ae26c853c /experimental | |
parent | 79418093c1bbae215e074d7e80dba29bbf960366 (diff) |
cleanup dead nanomsg and build_overrides
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2287013003
TBR=
Review-Url: https://codereview.chromium.org/2287013003
Diffstat (limited to 'experimental')
-rw-r--r-- | experimental/nanomsg/picture_demo.cpp | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/experimental/nanomsg/picture_demo.cpp b/experimental/nanomsg/picture_demo.cpp deleted file mode 100644 index a0b83a2579..0000000000 --- a/experimental/nanomsg/picture_demo.cpp +++ /dev/null @@ -1,214 +0,0 @@ -/* - * Copyright 2014 Google Inc. - * - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include "nanomsg/src/nn.h" -#include "nanomsg/src/pipeline.h" -#include "nanomsg/src/reqrep.h" - -#include "SkCanvas.h" -#include "SkCommandLineFlags.h" -#include "SkData.h" -#include "SkForceLinking.h" -#include "SkGraphics.h" -#include "SkImageEncoder.h" -#include "SkOSFile.h" -#include "SkPicture.h" -#include "SkRandom.h" -#include "SkStream.h" - -__SK_FORCE_IMAGE_DECODER_LINKING; - -// To keep things simple, PictureHeader is fixed-size POD. -struct PictureHeader { - SkMatrix matrix; - SkRect clip; - SkXfermode::Mode xfermode; - pid_t pid; - uint8_t alpha; - - PictureHeader() - : matrix(SkMatrix::I()) - , clip(SkRect::MakeLargest()) - , xfermode(SkXfermode::kSrcOver_Mode) - , pid(getpid()) - , alpha(0xFF) {} -}; - -// A little adaptor: nn_iovec wants a non-const pointer for no obvious reason. -static struct nn_iovec create_iov(const void* ptr, size_t size) { - struct nn_iovec iov = { const_cast<void*>(ptr), size }; - return iov; -} - -static void send_picture(int socket, const PictureHeader& header, const SkData& skp) { - // Vectored IO lets us send header and skp contiguously without first - // copying them to a contiguous buffer. - struct nn_iovec iov[] = { - create_iov(&header, sizeof(header)), - create_iov(skp.data(), skp.size()), - }; - - struct nn_msghdr msg; - sk_bzero(&msg, sizeof(msg)); - msg.msg_iov = iov; - msg.msg_iovlen = SK_ARRAY_COUNT(iov); - - nn_sendmsg(socket, &msg, 0/*flags*/); -} - -static sk_sp<SkPicture> recv_picture(int socket, PictureHeader* header) { - static const size_t hSize = sizeof(*header); // It's easy to slip up and use sizeof(header). - - void* msg; - int size = nn_recv(socket, &msg, NN_MSG, 0/*flags*/); - SkDebugf("%d bytes", size); - - // msg is first a fixed-size header, then an .skp. - memcpy(header, msg, hSize); - SkMemoryStream stream((uint8_t*)msg + hSize, size - hSize); - sk_sp<SkPicture> pic = SkPicture::MakeFromStream(&stream); - - SkDebugf(" from proccess %d:", header->pid); - - nn_freemsg(msg); - return pic; -} - -static void client(const char* skpPath, const char* dataEndpoint) { - // Read the .skp. - sk_sp<SkData> skp(SkData::MakeFromFileName(skpPath)); - if (!skp) { - SkDebugf("Couldn't read %s\n", skpPath); - exit(1); - } - SkMemoryStream stream(skp->data(), skp->size()); - sk_sp<SkPicture> picture(SkPicture::MakeFromStream(&stream)); - - PictureHeader header; - SkRandom rand(picture->cullRect().width() * picture->cullRect().height()); - SkScalar r = rand.nextRangeScalar(0, picture->cullRect().width()), - b = rand.nextRangeScalar(0, picture->cullRect().height()), - l = rand.nextRangeScalar(0, r), - t = rand.nextRangeScalar(0, b); - header.clip.setLTRB(l,t,r,b); - header.matrix.setTranslate(-l, -t); - header.matrix.postRotate(rand.nextRangeScalar(-25, 25)); - header.alpha = 0x7F; - - //Clients use NN_REQ (request) type sockets. - int socket = nn_socket(AF_SP, NN_REQ); - - // Clients connect a socket to an endpoint. - nn_connect(socket, dataEndpoint); - - // Send the picture and its header. - SkDebugf("Sending %s (%d bytes)...", skpPath, skp->size()); - send_picture(socket, header, *skp); - - // Wait for ack. - uint8_t ack; - nn_recv(socket, &ack, sizeof(ack), 0/*flags*/); - SkDebugf(" ok.\n"); -} - -// Wait until socketA or socketB has something to tell us, and return which one. -static int poll_in(int socketA, int socketB) { - struct nn_pollfd polls[] = { - { socketA, NN_POLLIN, 0 }, - { socketB, NN_POLLIN, 0 }, - }; - - nn_poll(polls, SK_ARRAY_COUNT(polls), -1/*no timeout*/); - - if (polls[0].revents & NN_POLLIN) { return socketA; } - if (polls[1].revents & NN_POLLIN) { return socketB; } - - SkFAIL("unreachable"); - return 0; -} - -static void server(const char* dataEndpoint, const char* controlEndpoint, SkCanvas* canvas) { - // NN_REP sockets receive a request then make a reply. NN_PULL sockets just receive a request. - int data = nn_socket(AF_SP, NN_REP); - int control = nn_socket(AF_SP, NN_PULL); - - // Servers bind a socket to an endpoint. - nn_bind(data, dataEndpoint); - nn_bind(control, controlEndpoint); - - while (true) { - int ready = poll_in(data, control); - - // If we got any message on the control socket, we can stop. - if (ready == control) { - break; - } - - // We should have an .skp waiting for us on data socket. - PictureHeader header; - sk_sp<SkPicture> picture(recv_picture(data, &header)); - - SkPaint paint; - paint.setAlpha(header.alpha); - paint.setXfermodeMode(header.xfermode); - - canvas->saveLayer(NULL, &paint); - canvas->concat(header.matrix); - canvas->clipRect(header.clip); - picture->playback(canvas); - canvas->restore(); - SkDebugf(" drew"); - - // Send back an ack. - uint8_t ack = 42; - nn_send(data, &ack, sizeof(ack), 0/*flags*/); - SkDebugf(" and acked.\n"); - } -} - -static void stop(const char* controlEndpoint) { - // An NN_PUSH socket can send messages but not receive them. - int control = nn_socket(AF_SP, NN_PUSH); - nn_connect(control, controlEndpoint); - - // Sending anything (including this 0-byte message) will tell server() to stop. - nn_send(control, NULL, 0, 0/*flags*/); -} - -DEFINE_string2(skp, r, "", ".skp to send (as client)"); -DEFINE_string2(png, w, "", ".png to write (as server)"); -DEFINE_bool(stop, false, "If true, tell server to stop and write its canvas out as a .png."); -DEFINE_string(data, "ipc://nanomsg-picture-data", "Endpoint for sending pictures."); -DEFINE_string(control, "ipc://nanomsg-picture-control", "Endpoint for control channel."); - -int main(int argc, char** argv) { - SkAutoGraphics ag; - SkCommandLineFlags::Parse(argc, argv); - - if (FLAGS_stop) { - stop(FLAGS_control[0]); - } - - if (!FLAGS_skp.isEmpty()) { - client(FLAGS_skp[0], FLAGS_data[0]); - } - - if (!FLAGS_png.isEmpty()) { - SkBitmap bitmap; - bitmap.allocN32Pixels(1000, 1000); - SkCanvas canvas(bitmap); - canvas.clear(0xFFFFFFFF); - - server(FLAGS_data[0], FLAGS_control[0], &canvas); - canvas.flush(); - - SkImageEncoder::EncodeFile(FLAGS_png[0], bitmap, SkImageEncoder::kPNG_Type, 100); - SkDebugf("Wrote %s.\n", FLAGS_png[0]); - } - - return 0; -} |