mirror of https://github.com/AxioDL/metaforce.git
346 lines
9.8 KiB
C++
346 lines
9.8 KiB
C++
#include "VISIRenderer.hpp"
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#include <X11/Xlib.h>
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#include <X11/Xatom.h>
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#include <GL/glx.h>
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#include "athena/Global.hpp"
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#include "logvisor/logvisor.hpp"
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#include <thread>
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#include <condition_variable>
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#include <stdint.h>
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#include <limits.h>
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#include <signal.h>
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#define MWM_HINTS_FUNCTIONS (1L << 0)
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#define MWM_HINTS_DECORATIONS (1L << 1)
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#define MWM_DECOR_BORDER (1L<<1)
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#define MWM_DECOR_RESIZEH (1L<<2)
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#define MWM_DECOR_TITLE (1L<<3)
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#define MWM_DECOR_MENU (1L<<4)
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#define MWM_DECOR_MINIMIZE (1L<<5)
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#define MWM_DECOR_MAXIMIZE (1L<<6)
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#define MWM_FUNC_RESIZE (1L<<1)
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#define MWM_FUNC_MOVE (1L<<2)
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#define MWM_FUNC_MINIMIZE (1L<<3)
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#define MWM_FUNC_MAXIMIZE (1L<<4)
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#define MWM_FUNC_CLOSE (1L<<5)
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typedef GLXContext (*glXCreateContextAttribsARBProc)(Display*, GLXFBConfig, GLXContext, Bool, const int*);
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static glXCreateContextAttribsARBProc glXCreateContextAttribsARB = 0;
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static const int ContextAttribList[7][7] =
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{
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{ GLX_CONTEXT_MAJOR_VERSION_ARB, 4,
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GLX_CONTEXT_MINOR_VERSION_ARB, 5,
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GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
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0
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},
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{ GLX_CONTEXT_MAJOR_VERSION_ARB, 4,
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GLX_CONTEXT_MINOR_VERSION_ARB, 4,
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GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
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0
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},
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{ GLX_CONTEXT_MAJOR_VERSION_ARB, 4,
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GLX_CONTEXT_MINOR_VERSION_ARB, 3,
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GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
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0
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},
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{ GLX_CONTEXT_MAJOR_VERSION_ARB, 4,
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GLX_CONTEXT_MINOR_VERSION_ARB, 2,
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GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
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0
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},
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{ GLX_CONTEXT_MAJOR_VERSION_ARB, 4,
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GLX_CONTEXT_MINOR_VERSION_ARB, 1,
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GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
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0
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},
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{ GLX_CONTEXT_MAJOR_VERSION_ARB, 4,
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GLX_CONTEXT_MINOR_VERSION_ARB, 0,
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GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
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0
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},
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{ GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
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GLX_CONTEXT_MINOR_VERSION_ARB, 3,
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GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
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0
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},
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};
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static bool s_glxError;
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static int ctxErrorHandler(Display *dpy, XErrorEvent *ev)
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{
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s_glxError = true;
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return 0;
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}
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static logvisor::Module Log("visigen-xlib");
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static logvisor::Module AthenaLog("Athena");
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static void AthenaExc(athena::error::Level level, const char* file,
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const char*, int line, const char* fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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AthenaLog.report(logvisor::Level(level), fmt, ap);
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va_end(ap);
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}
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static Display* xDisp;
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static Window windowId;
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static void UpdatePercent(float percent)
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{
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XLockDisplay(xDisp);
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char title[256];
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snprintf(title, 256, "VISIGen [%g%%]", percent * 100.f);
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XChangeProperty(xDisp, windowId, XA_WM_NAME, XA_STRING, 8,
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PropModeReplace, (unsigned char*)title, strlen(title));
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XUnlockDisplay(xDisp);
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}
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/* Empty handler for SIGINT */
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static void _sigint(int) {}
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int main(int argc, const char** argv)
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{
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/* Program is portable to all locales */
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setlocale(LC_ALL, "");
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logvisor::RegisterStandardExceptions();
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logvisor::RegisterConsoleLogger();
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atSetExceptionHandler(AthenaExc);
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VISIRenderer renderer(argc, argv);
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if (!XInitThreads())
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{
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Log.report(logvisor::Error, "X doesn't support multithreading");
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return 1;
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}
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/* Open Xlib Display */
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xDisp = XOpenDisplay(0);
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if (!xDisp)
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{
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Log.report(logvisor::Error, "Can't open X display");
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return 1;
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}
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/* Default screen */
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int xDefaultScreen = DefaultScreen(xDisp);
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Screen* screen = ScreenOfDisplay(xDisp, xDefaultScreen);
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/* Query framebuffer configurations */
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GLXFBConfig* fbConfigs = nullptr;
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int numFBConfigs = 0;
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fbConfigs = glXGetFBConfigs(xDisp, xDefaultScreen, &numFBConfigs);
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if (!fbConfigs || numFBConfigs == 0)
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{
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Log.report(logvisor::Error, "glXGetFBConfigs failed");
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return 1;
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}
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int selVisualId = -1;
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GLXFBConfig selFBConfig = nullptr;
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for (int i=0 ; i<numFBConfigs ; ++i)
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{
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GLXFBConfig config = fbConfigs[i];
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int visualId, depthSize, colorSize, doubleBuffer;
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glXGetFBConfigAttrib(xDisp, config, GLX_VISUAL_ID, &visualId);
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glXGetFBConfigAttrib(xDisp, config, GLX_DEPTH_SIZE, &depthSize);
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glXGetFBConfigAttrib(xDisp, config, GLX_BUFFER_SIZE, &colorSize);
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glXGetFBConfigAttrib(xDisp, config, GLX_DOUBLEBUFFER, &doubleBuffer);
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/* Single-buffer only */
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if (doubleBuffer)
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continue;
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if (colorSize >= 32 && depthSize >= 24)
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{
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selFBConfig = config;
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selVisualId = visualId;
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break;
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}
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}
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XFree(fbConfigs);
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if (!selFBConfig)
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{
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Log.report(logvisor::Error, "unable to find suitable pixel format");
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return 1;
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}
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XVisualInfo visTemplate = {};
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visTemplate.screen = xDefaultScreen;
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int numVisuals;
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XVisualInfo* visualList = XGetVisualInfo(xDisp, VisualScreenMask, &visTemplate, &numVisuals);
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Visual* selectedVisual = nullptr;
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for (int i=0 ; i<numVisuals ; ++i)
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{
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if (visualList[i].visualid == selVisualId)
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{
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selectedVisual = visualList[i].visual;
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break;
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}
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}
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XFree(visualList);
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/* Create colormap */
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Colormap colormapId = XCreateColormap(xDisp, screen->root, selectedVisual, AllocNone);
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/* Create window */
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XSetWindowAttributes swa;
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swa.colormap = colormapId;
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swa.border_pixmap = 0;
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swa.event_mask = 0;
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int instIdx = -1;
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if (argc > 3)
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instIdx = atoi(argv[3]);
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int x = 0;
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int y = 0;
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if (instIdx != -1)
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{
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x = (instIdx & 1) != 0;
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y = (instIdx & 2) != 0;
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}
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windowId = XCreateWindow(xDisp, screen->root, x, y, 768, 512, 10,
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CopyFromParent, CopyFromParent, selectedVisual,
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CWBorderPixel | CWEventMask | CWColormap, &swa);
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if (!glXCreateContextAttribsARB)
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{
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glXCreateContextAttribsARB = (glXCreateContextAttribsARBProc)
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glXGetProcAddressARB((const GLubyte*)"glXCreateContextAttribsARB");
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if (!glXCreateContextAttribsARB)
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{
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Log.report(logvisor::Error, "unable to resolve glXCreateContextAttribsARB");
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return 1;
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}
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}
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s_glxError = false;
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XErrorHandler oldHandler = XSetErrorHandler(ctxErrorHandler);
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GLXContext glxCtx = nullptr;
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for (int attribIdx=0 ; attribIdx<std::extent<decltype(ContextAttribList)>::value ; ++attribIdx)
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{
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glxCtx = glXCreateContextAttribsARB(xDisp, selFBConfig, nullptr, True, ContextAttribList[attribIdx]);
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if (glxCtx)
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break;
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}
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XSetErrorHandler(oldHandler);
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if (!glxCtx)
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{
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Log.report(logvisor::Fatal, "unable to make new GLX context");
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return 1;
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}
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GLXWindow glxWindow = glXCreateWindow(xDisp, selFBConfig, windowId, nullptr);
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if (!glxWindow)
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{
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Log.report(logvisor::Fatal, "unable to make new GLX window");
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return 1;
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}
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XMapWindow(xDisp, windowId);
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struct
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{
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unsigned long flags;
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unsigned long functions;
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unsigned long decorations;
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long inputMode;
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unsigned long status;
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} wmHints = {0};
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Atom motifWmHints = XInternAtom(xDisp, "_MOTIF_WM_HINTS", True);
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if (motifWmHints)
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{
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wmHints.flags = MWM_HINTS_DECORATIONS | MWM_HINTS_FUNCTIONS;
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wmHints.decorations |= MWM_DECOR_BORDER | MWM_DECOR_TITLE | MWM_DECOR_MINIMIZE | MWM_DECOR_MENU;
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wmHints.functions |= MWM_FUNC_MOVE | MWM_FUNC_MINIMIZE;
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XChangeProperty(xDisp, windowId, motifWmHints, motifWmHints, 32, PropModeReplace, (unsigned char*)&wmHints, 5);
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}
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/* SIGINT will be used to cancel main thread when client thread ends
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* (also enables graceful quitting via ctrl-c) */
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pthread_t mainThread = pthread_self();
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struct sigaction s;
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s.sa_handler = _sigint;
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sigemptyset(&s.sa_mask);
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s.sa_flags = 0;
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sigaction(SIGINT, &s, nullptr);
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sigaction(SIGUSR2, &s, nullptr);
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sigset_t waitmask, origmask;
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sigemptyset(&waitmask);
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sigaddset(&waitmask, SIGINT);
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sigaddset(&waitmask, SIGUSR2);
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pthread_sigmask(SIG_BLOCK, &waitmask, &origmask);
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int x11Fd = ConnectionNumber(xDisp);
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/* Spawn client thread */
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bool clientRunning = true;
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std::mutex initmt;
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std::condition_variable initcv;
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std::unique_lock<std::mutex> outerLk(initmt);
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std::thread clientThread([&]()
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{
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std::unique_lock<std::mutex> innerLk(initmt);
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innerLk.unlock();
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initcv.notify_one();
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XLockDisplay(xDisp);
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if (!glXMakeContextCurrent(xDisp, glxWindow, glxWindow, glxCtx))
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Log.report(logvisor::Fatal, "unable to make GLX context current");
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XUnlockDisplay(xDisp);
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renderer.Run(UpdatePercent);
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clientRunning = false;
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XLockDisplay(xDisp);
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XClientMessageEvent exitEvent = {};
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exitEvent.type = ClientMessage;
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exitEvent.window = windowId;
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exitEvent.format = 32;
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XSendEvent(xDisp, windowId, 0, 0, (XEvent*)&exitEvent);
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XFlush(xDisp);
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XUnlockDisplay(xDisp);
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});
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initcv.wait(outerLk);
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/* Begin application event loop */
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while (clientRunning)
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{
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fd_set fds;
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FD_ZERO(&fds);
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FD_SET(x11Fd, &fds);
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if (pselect(x11Fd+1, &fds, NULL, NULL, NULL, &origmask) < 0)
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{
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/* SIGINT/SIGUSR2 handled here */
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if (errno == EINTR)
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break;
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}
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if (FD_ISSET(x11Fd, &fds))
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{
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XLockDisplay(xDisp);
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while (XPending(xDisp))
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{
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XEvent event;
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XNextEvent(xDisp, &event);
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if (XFilterEvent(&event, None)) continue;
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}
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XUnlockDisplay(xDisp);
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}
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}
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renderer.Terminate();
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if (clientThread.joinable())
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clientThread.join();
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return renderer.ReturnVal();
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}
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