157 lines
3.5 KiB
C++
157 lines
3.5 KiB
C++
// Copyright 2008-2023 The Mumble Developers. All rights reserved.
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// Use of this source code is governed by a BSD-style license
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// that can be found in the LICENSE file at the root of the
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// Mumble source tree or at <https://www.mumble.info/LICENSE>.
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/**
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* Test-/Exampleprogram which links against the Mumble link plugin to send
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* positional data.
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*/
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// Allow use of wcsncpy without warnings
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#define _CRT_SECURE_NO_WARNINGS
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#include <QtCore>
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#ifdef Q_OS_WIN
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# include "win.h"
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#else
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# include <fcntl.h>
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# include <sys/mman.h>
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#endif
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struct LinkedMem {
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#ifdef WIN32
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UINT32 uiVersion;
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DWORD uiTick;
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#else
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uint32_t uiVersion;
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uint32_t uiTick;
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#endif
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float fAvatarPosition[3];
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float fAvatarFront[3];
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float fAvatarTop[3];
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wchar_t name[256];
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float fCameraPosition[3];
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float fCameraFront[3];
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float fCameraTop[3];
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wchar_t identity[256];
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#ifdef WIN32
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UINT32 context_len;
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#else
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uint32_t context_len;
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#endif
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unsigned char context[256];
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wchar_t description[2048];
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};
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LinkedMem *lm = nullptr;
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void initMumble() {
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#ifdef WIN32
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HANDLE hMapObject = OpenFileMappingW(FILE_MAP_ALL_ACCESS, FALSE, L"MumbleLink");
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if (!hMapObject)
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return;
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lm = (LinkedMem *) MapViewOfFile(hMapObject, FILE_MAP_ALL_ACCESS, 0, 0, sizeof(LinkedMem));
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if (!lm) {
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CloseHandle(hMapObject);
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hMapObject = nullptr;
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return;
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}
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#else
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char memname[256];
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snprintf(memname, 256, "/MumbleLink.%d", getuid());
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int shmfd = shm_open(memname, O_RDWR, S_IRUSR | S_IWUSR);
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if (shmfd < 0) {
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return;
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}
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lm = (LinkedMem *) (mmap(nullptr, sizeof(struct LinkedMem), PROT_READ | PROT_WRITE, MAP_SHARED, shmfd, 0));
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if (lm == (void *) (-1)) {
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lm = nullptr;
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return;
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}
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#endif
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}
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void updateMumble() {
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if (!lm)
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return;
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if (lm->uiVersion != 2) {
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wcsncpy(lm->name, L"TestLink", 256);
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wcsncpy(lm->description, L"TestLink is a test of the Link plugin.", 2048);
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lm->uiVersion = 2;
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}
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lm->uiTick++;
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// Left handed coordinate system.
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// X positive towards "right".
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// Y positive towards "up".
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// Z positive towards "into screen".
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//
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// 1 unit = 1 meter
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// Unit vector pointing out of the avatars eyes (here Front looks into scene).
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lm->fAvatarFront[0] = 0.0f;
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lm->fAvatarFront[1] = 0.0f;
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lm->fAvatarFront[2] = 1.0f;
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// Unit vector pointing out of the top of the avatars head (here Top looks straight up).
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lm->fAvatarTop[0] = 0.0f;
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lm->fAvatarTop[1] = 1.0f;
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lm->fAvatarTop[2] = 0.0f;
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// Position of the avatar (here standing slightly off the origin)
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lm->fAvatarPosition[0] += 0.001f;
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lm->fAvatarPosition[1] = 0.0f;
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lm->fAvatarPosition[2] = 0.5f;
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// Same as avatar but for the camera.
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lm->fCameraPosition[0] = 0.0f;
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lm->fCameraPosition[1] = 0.0f;
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lm->fCameraPosition[2] = 0.0f;
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lm->fCameraFront[0] = 0.0f;
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lm->fCameraFront[1] = 0.0f;
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lm->fCameraFront[2] = 1.0f;
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lm->fCameraTop[0] = 0.0f;
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lm->fCameraTop[1] = 1.0f;
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lm->fCameraTop[2] = 0.0f;
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// Identifier which uniquely identifies a certain player in a context (e.g. the ingame Name).
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wcsncpy(lm->identity, L"Unique ID", 256);
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// Context should be equal for players which should be able to hear each other positional and
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// differ for those who shouldn't (e.g. it could contain the server+port and team)
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memcpy(lm->context, "ContextBlob\x00\x01\x02\x03\x04", 16);
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lm->context_len = 16;
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}
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int main(int argc, char **argv) {
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QCoreApplication a(argc, argv);
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initMumble();
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if (!lm)
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qFatal("No Link!");
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lm->fAvatarPosition[0];
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while (true) {
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qWarning("Tick!");
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updateMumble();
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#ifdef WIN32
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Sleep(100);
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#else
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usleep(100 * 1000);
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#endif
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}
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}
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#undef _CRT_SECURE_NO_WARNINGS
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