400 lines
7.7 KiB
C
400 lines
7.7 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (c) 2006 Peter Schlaile
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*
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* Contributor(s):
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/blenkernel/intern/writeframeserver.c
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* \ingroup bke
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*
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* Frameserver
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* Makes Blender accessible from TMPGenc directly using VFAPI (you can
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* use firefox too ;-)
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*/
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#ifdef WITH_FRAMESERVER
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#include <string.h>
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#include <stdio.h>
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#if defined(_WIN32)
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#include <winsock2.h>
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#include <windows.h>
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#include <winbase.h>
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#include <direct.h>
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#else
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <net/if.h>
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#include <netdb.h>
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#include <sys/ioctl.h>
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#include <errno.h>
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#include <unistd.h>
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#include <sys/un.h>
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#include <fcntl.h>
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#endif
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#include <stdlib.h>
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#include "DNA_userdef_types.h"
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#include "BLI_utildefines.h"
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#include "BKE_writeframeserver.h"
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#include "BKE_global.h"
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#include "BKE_report.h"
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#include "DNA_scene_types.h"
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static int sock;
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static int connsock;
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static int write_ppm;
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static int render_width;
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static int render_height;
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#if defined(_WIN32)
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static int startup_socket_system(void)
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{
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WSADATA wsa;
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return (WSAStartup(MAKEWORD(2, 0), &wsa) == 0);
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}
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static void shutdown_socket_system(void)
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{
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WSACleanup();
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}
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static int select_was_interrupted_by_signal(void)
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{
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return (WSAGetLastError() == WSAEINTR);
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}
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#else
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static int startup_socket_system(void)
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{
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return 1;
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}
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static void shutdown_socket_system(void)
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{
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}
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static int select_was_interrupted_by_signal(void)
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{
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return (errno == EINTR);
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}
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static int closesocket(int fd)
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{
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return close(fd);
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}
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#endif
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int BKE_frameserver_start(struct Scene *scene, RenderData *UNUSED(rd), int rectx, int recty, ReportList *reports)
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{
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struct sockaddr_in addr;
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int arg = 1;
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(void)scene; /* unused */
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if (!startup_socket_system()) {
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BKE_report(reports, RPT_ERROR, "Cannot startup socket system");
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return 0;
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}
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if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
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shutdown_socket_system();
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BKE_report(reports, RPT_ERROR, "Cannot open socket");
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return 0;
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}
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setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *) &arg, sizeof(arg));
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addr.sin_family = AF_INET;
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addr.sin_port = htons(U.frameserverport);
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addr.sin_addr.s_addr = INADDR_ANY;
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if (bind(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
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shutdown_socket_system();
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BKE_report(reports, RPT_ERROR, "Cannot bind to socket");
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return 0;
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}
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if (listen(sock, SOMAXCONN) < 0) {
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shutdown_socket_system();
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BKE_report(reports, RPT_ERROR, "Cannot establish listen backlog");
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return 0;
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}
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connsock = -1;
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render_width = rectx;
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render_height = recty;
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return 1;
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}
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static char index_page[] =
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"HTTP/1.1 200 OK\r\n"
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"Content-Type: text/html\r\n"
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"\r\n"
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"<html><head><title>Blender Frameserver</title></head>\n"
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"<body><pre>\n"
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"<H2>Blender Frameserver</H2>\n"
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"<A HREF=info.txt>Render Info</A><br>\n"
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"<A HREF=close.txt>Stop Rendering</A><br>\n"
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"\n"
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"Images can be found here\n"
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"\n"
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"images/ppm/%d.ppm\n"
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"\n"
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"</pre></body></html>\n";
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static char good_bye[] =
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"HTTP/1.1 200 OK\r\n"
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"Content-Type: text/html\r\n"
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"\r\n"
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"<html><head><title>Blender Frameserver</title></head>\n"
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"<body><pre>\n"
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"Render stopped. Goodbye</pre></body></html>";
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static int safe_write(char *s, int tosend)
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{
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int total = tosend;
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do {
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int got = send(connsock, s, tosend, 0);
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if (got < 0) {
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return got;
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}
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tosend -= got;
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s += got;
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} while (tosend > 0);
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return total;
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}
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static int safe_puts(char *s)
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{
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return safe_write(s, strlen(s));
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}
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static int handle_request(RenderData *rd, char *req)
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{
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char *p;
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char *path;
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int pathlen;
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if (memcmp(req, "GET ", 4) != 0) {
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return -1;
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}
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p = req + 4;
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path = p;
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while (*p != ' ' && *p) p++;
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*p = 0;
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if (strcmp(path, "/index.html") == 0 || strcmp(path, "/") == 0) {
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safe_puts(index_page);
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return -1;
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}
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write_ppm = 0;
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pathlen = strlen(path);
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if (pathlen > 12 && memcmp(path, "/images/ppm/", 12) == 0) {
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write_ppm = 1;
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return atoi(path + 12);
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}
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if (strcmp(path, "/info.txt") == 0) {
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char buf[4096];
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sprintf(buf,
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"HTTP/1.1 200 OK\r\n"
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"Content-Type: text/html\r\n"
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"\r\n"
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"start %d\n"
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"end %d\n"
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"width %d\n"
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"height %d\n"
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"rate %d\n"
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"ratescale %d\n",
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rd->sfra,
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rd->efra,
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render_width,
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render_height,
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rd->frs_sec,
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1
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);
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safe_puts(buf);
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return -1;
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}
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if (strcmp(path, "/close.txt") == 0) {
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safe_puts(good_bye);
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G.is_break = true; /* Abort render */
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return -1;
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}
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return -1;
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}
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int BKE_frameserver_loop(RenderData *rd, ReportList *UNUSED(reports))
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{
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fd_set readfds;
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struct timeval tv;
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struct sockaddr_in addr;
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int len, rval;
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#ifdef FREE_WINDOWS
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int socklen;
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#else
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unsigned int socklen;
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#endif
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char buf[4096];
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if (connsock != -1) {
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closesocket(connsock);
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connsock = -1;
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}
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tv.tv_sec = 1;
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tv.tv_usec = 0;
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FD_ZERO(&readfds);
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FD_SET(sock, &readfds);
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rval = select(sock + 1, &readfds, NULL, NULL, &tv);
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if (rval < 0) {
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return -1;
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}
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if (rval == 0) { /* nothing to be done */
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return -1;
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}
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socklen = sizeof(addr);
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if ((connsock = accept(sock, (struct sockaddr *)&addr, &socklen)) < 0) {
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return -1;
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}
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FD_ZERO(&readfds);
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FD_SET(connsock, &readfds);
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for (;;) {
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/* give 10 seconds for telnet testing... */
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tv.tv_sec = 10;
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tv.tv_usec = 0;
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rval = select(connsock + 1, &readfds, NULL, NULL, &tv);
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if (rval > 0) {
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break;
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}
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else if (rval == 0) {
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return -1;
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}
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else if (rval < 0) {
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if (!select_was_interrupted_by_signal()) {
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return -1;
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}
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}
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}
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len = recv(connsock, buf, sizeof(buf) - 1, 0);
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if (len < 0) {
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return -1;
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}
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buf[len] = 0;
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return handle_request(rd, buf);
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}
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static void serve_ppm(int *pixels, int rectx, int recty)
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{
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unsigned char *rendered_frame;
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unsigned char *row = (unsigned char *) malloc(render_width * 3);
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int y;
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char header[1024];
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sprintf(header,
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"HTTP/1.1 200 OK\r\n"
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"Content-Type: image/ppm\r\n"
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"Connection: close\r\n"
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"\r\n"
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"P6\n"
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"# Creator: blender frameserver v0.0.1\n"
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"%d %d\n"
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"255\n",
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rectx, recty);
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safe_puts(header);
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rendered_frame = (unsigned char *)pixels;
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for (y = recty - 1; y >= 0; y--) {
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unsigned char *target = row;
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unsigned char *src = rendered_frame + rectx * 4 * y;
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unsigned char *end = src + rectx * 4;
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while (src != end) {
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target[2] = src[2];
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target[1] = src[1];
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target[0] = src[0];
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target += 3;
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src += 4;
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}
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safe_write((char *)row, 3 * rectx);
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}
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free(row);
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closesocket(connsock);
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connsock = -1;
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}
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int BKE_frameserver_append(RenderData *UNUSED(rd), int UNUSED(start_frame), int frame, int *pixels,
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int rectx, int recty, ReportList *UNUSED(reports))
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{
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fprintf(stderr, "Serving frame: %d\n", frame);
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if (write_ppm) {
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serve_ppm(pixels, rectx, recty);
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}
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if (connsock != -1) {
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closesocket(connsock);
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connsock = -1;
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}
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return 1;
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}
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void BKE_frameserver_end(void)
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{
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if (connsock != -1) {
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closesocket(connsock);
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connsock = -1;
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}
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closesocket(sock);
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shutdown_socket_system();
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}
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#endif /* WITH_FRAMESERVER */
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