ReplayCreateStatus GL_CreateReplayDevice(const char *logfile, IReplayDriver **driver)
{
RDCDEBUG("Creating an OpenGL replay device");
HMODULE lib = NULL;
lib = LoadLibraryA("opengl32.dll");
if(lib == NULL)
{
RDCERR("Failed to load opengl32.dll");
return eReplayCreate_APIInitFailed;
}
GLInitParams initParams;
RDCDriver driverType = RDC_OpenGL;
string driverName = "OpenGL";
uint64_t machineIdent = 0;
if(logfile)
{
auto status = RenderDoc::Inst().FillInitParams(logfile, driverType, driverName, machineIdent,
(RDCInitParams *)&initParams);
if(status != eReplayCreate_Success)
return status;
}
PIXELFORMATDESCRIPTOR pfd = {0};
if(wglGetProc == NULL)
{
wglGetProc = (WGLGETPROCADDRESSPROC)GetProcAddress(lib, "wglGetProcAddress");
wglCreateRC = (WGLCREATECONTEXTPROC)GetProcAddress(lib, "wglCreateContext");
wglMakeCurrentProc = (WGLMAKECURRENTPROC)GetProcAddress(lib, "wglMakeCurrent");
wglDeleteRC = (WGLDELETECONTEXTPROC)GetProcAddress(lib, "wglDeleteContext");
if(wglGetProc == NULL || wglCreateRC == NULL || wglMakeCurrentProc == NULL || wglDeleteRC == NULL)
{
RDCERR("Couldn't get wgl function addresses");
return eReplayCreate_APIInitFailed;
}
WNDCLASSEX wc;
RDCEraseEl(wc);
wc.style = CS_OWNDC;
wc.cbSize = sizeof(WNDCLASSEX);
wc.lpfnWndProc = DefWindowProc;
wc.hInstance = GetModuleHandle(NULL);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.lpszClassName = L"renderdocGLclass";
if(!RegisterClassEx(&wc))
{
RDCERR("Couldn't register GL window class");
return eReplayCreate_APIInitFailed;
}
RDCEraseEl(pfd);
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
pfd.iLayerType = PFD_MAIN_PLANE;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 32;
pfd.cDepthBits = 24;
pfd.cStencilBits = 0;
}
HWND w = CreateWindowEx(WS_EX_CLIENTEDGE, L"renderdocGLclass", L"", WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL,
GetModuleHandle(NULL), NULL);
HDC dc = GetDC(w);
int pf = ChoosePixelFormat(dc, &pfd);
if(pf == 0)
{
RDCERR("Couldn't choose pixel format");
return eReplayCreate_APIInitFailed;
}
BOOL res = SetPixelFormat(dc, pf, &pfd);
if(res == FALSE)
{
RDCERR("Couldn't set pixel format");
return eReplayCreate_APIInitFailed;
}
HGLRC rc = wglCreateRC(dc);
if(rc == NULL)
{
RDCERR("Couldn't create simple RC");
return eReplayCreate_APIInitFailed;
}
res = wglMakeCurrentProc(dc, rc);
if(res == FALSE)
{
RDCERR("Couldn't make simple RC current");
return eReplayCreate_APIInitFailed;
}
createContextAttribs =
(PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProc("wglCreateContextAttribsARB");
getPixelFormatAttrib =
(PFNWGLGETPIXELFORMATATTRIBIVARBPROC)wglGetProc("wglGetPixelFormatAttribivARB");
if(createContextAttribs == NULL || getPixelFormatAttrib == NULL)
{
RDCERR("RenderDoc requires WGL_ARB_create_context and WGL_ARB_pixel_format");
return eReplayCreate_APIHardwareUnsupported;
}
wglMakeCurrentProc(NULL, NULL);
wglDeleteRC(rc);
ReleaseDC(w, dc);
DestroyWindow(w);
GLReplay::PreContextInitCounters();
// we don't use the default framebuffer (backbuffer) for anything, so we make it
// tiny and with no depth/stencil bits
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 24;
pfd.cDepthBits = 0;
pfd.cStencilBits = 0;
w = CreateWindowEx(WS_EX_CLIENTEDGE, L"renderdocGLclass", L"RenderDoc replay window",
WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 32, 32, NULL, NULL,
GetModuleHandle(NULL), NULL);
dc = GetDC(w);
pf = ChoosePixelFormat(dc, &pfd);
if(pf == 0)
{
RDCERR("Couldn't choose pixel format");
ReleaseDC(w, dc);
GLReplay::PostContextShutdownCounters();
return eReplayCreate_APIInitFailed;
}
res = SetPixelFormat(dc, pf, &pfd);
if(res == FALSE)
{
RDCERR("Couldn't set pixel format");
ReleaseDC(w, dc);
GLReplay::PostContextShutdownCounters();
return eReplayCreate_APIInitFailed;
}
int attribs[64] = {0};
int i = 0;
attribs[i++] = WGL_CONTEXT_MAJOR_VERSION_ARB;
int &major = attribs[i];
attribs[i++] = 0;
attribs[i++] = WGL_CONTEXT_MINOR_VERSION_ARB;
int &minor = attribs[i];
attribs[i++] = 0;
attribs[i++] = WGL_CONTEXT_FLAGS_ARB;
#if ENABLED(RDOC_DEVEL)
attribs[i++] = WGL_CONTEXT_DEBUG_BIT_ARB;
#else
attribs[i++] = 0;
#endif
attribs[i++] = WGL_CONTEXT_PROFILE_MASK_ARB;
attribs[i++] = WGL_CONTEXT_CORE_PROFILE_BIT_ARB;
// try to create all versions from 4.5 down to 3.2 in order to get the
// highest versioned context we can
struct
{
int major;
int minor;
} versions[] = {
{4, 5}, {4, 4}, {4, 3}, {4, 2}, {4, 1}, {4, 0}, {3, 3}, {3, 2},
};
rc = NULL;
for(size_t v = 0; v < ARRAY_COUNT(versions); v++)
{
major = versions[v].major;
minor = versions[v].minor;
rc = createContextAttribs(dc, NULL, attribs);
if(rc)
break;
}
if(rc == NULL)
{
RDCERR("Couldn't create 3.2 RC - RenderDoc requires OpenGL 3.2 availability");
ReleaseDC(w, dc);
GLReplay::PostContextShutdownCounters();
return eReplayCreate_APIHardwareUnsupported;
}
GLCoreVersion = major * 10 + minor;
res = wglMakeCurrentProc(dc, rc);
if(res == FALSE)
{
RDCERR("Couldn't make 3.2 RC current");
wglMakeCurrentProc(NULL, NULL);
wglDeleteRC(rc);
ReleaseDC(w, dc);
GLReplay::PostContextShutdownCounters();
return eReplayCreate_APIInitFailed;
}
PFNGLGETINTEGERVPROC getInt = (PFNGLGETINTEGERVPROC)GetProcAddress(lib, "glGetIntegerv");
PFNGLGETSTRINGPROC getStr = (PFNGLGETSTRINGPROC)GetProcAddress(lib, "glGetString");
PFNGLGETSTRINGIPROC getStri = (PFNGLGETSTRINGIPROC)wglGetProc("glGetStringi");
if(getInt == NULL || getStr == NULL || getStri == NULL)
{
RDCERR("Couldn't get glGetIntegerv (%p), glGetString (%p) or glGetStringi (%p) entry points",
getInt, getStr, getStri);
wglMakeCurrentProc(NULL, NULL);
wglDeleteRC(rc);
ReleaseDC(w, dc);
GLReplay::PostContextShutdownCounters();
return eReplayCreate_APIInitFailed;
}
bool missingExt = CheckReplayContext(getStr, getInt, getStri);
if(missingExt)
{
wglMakeCurrentProc(NULL, NULL);
wglDeleteRC(rc);
ReleaseDC(w, dc);
GLReplay::PostContextShutdownCounters();
return eReplayCreate_APIInitFailed;
}
const GLHookSet &real = GetRealGLFunctions();
bool extensionsValidated = ValidateFunctionPointers(real);
if(!extensionsValidated)
{
wglMakeCurrentProc(NULL, NULL);
wglDeleteRC(rc);
ReleaseDC(w, dc);
GLReplay::PostContextShutdownCounters();
return eReplayCreate_APIInitFailed;
}
WrappedOpenGL *gl = new WrappedOpenGL(logfile, real, GetGLPlatform());
gl->Initialise(initParams);
if(gl->GetSerialiser()->HasError())
{
delete gl;
return eReplayCreate_FileIOFailed;
}
RDCLOG("Created device.");
GLReplay *replay = gl->GetReplay();
replay->SetProxy(logfile == NULL);
GLWindowingData data;
data.DC = dc;
data.ctx = rc;
data.wnd = w;
replay->SetReplayData(data);
*driver = (IReplayDriver *)replay;
return eReplayCreate_Success;
}
ReplayCreateStatus GL_CreateReplayDevice(const char *logfile, IReplayDriver **driver)
{
RDCDEBUG("Creating an OpenGL replay device");
if(glXCreateContextAttribsProc == NULL)
{
glXGetFuncProc = (PFNGLXGETPROCADDRESSPROC)dlsym(RTLD_NEXT, "glXGetProcAddress");
glXDestroyCtxProc = (PFNGLXDESTROYCONTEXTPROC)dlsym(RTLD_NEXT, "glXDestroyContext");
glXSwapProc = (PFNGLXSWAPBUFFERSPROC)dlsym(RTLD_NEXT, "glXSwapBuffers");
glXChooseFBConfigProc = (PFNGLXCHOOSEFBCONFIGPROC)dlsym(RTLD_NEXT, "glXChooseFBConfig");
glXCreatePbufferProc = (PFNGLXCREATEPBUFFERPROC)dlsym(RTLD_NEXT, "glXCreatePbuffer");
glXDestroyPbufferProc = (PFNGLXDESTROYPBUFFERPROC)dlsym(RTLD_NEXT, "glXDestroyPbuffer");
glXQueryDrawableProc = (PFNGLXQUERYDRAWABLEPROC)dlsym(RTLD_NEXT, "glXQueryDrawable");
if(glXGetFuncProc == NULL || glXDestroyCtxProc == NULL || glXSwapProc == NULL ||
glXChooseFBConfigProc == NULL || glXCreatePbufferProc == NULL ||
glXDestroyPbufferProc == NULL || glXQueryDrawableProc == NULL)
{
RDCERR(
"Couldn't find required entry points, glXGetProcAddress glXDestroyContext "
"glXSwapBuffers");
return eReplayCreate_APIInitFailed;
}
glXCreateContextAttribsProc = (PFNGLXCREATECONTEXTATTRIBSARBPROC)glXGetFuncProc(
(const GLubyte *)"glXCreateContextAttribsARB");
glXMakeContextCurrentProc =
(PFNGLXMAKECONTEXTCURRENTPROC)glXGetFuncProc((const GLubyte *)"glXMakeContextCurrent");
if(glXCreateContextAttribsProc == NULL || glXMakeContextCurrentProc == NULL)
{
RDCERR(
"Couldn't get glx function addresses, glXCreateContextAttribsARB glXMakeContextCurrent");
return eReplayCreate_APIInitFailed;
}
}
GLInitParams initParams;
RDCDriver driverType = RDC_OpenGL;
string driverName = "OpenGL";
uint64_t machineIdent = 0;
if(logfile)
{
auto status = RenderDoc::Inst().FillInitParams(logfile, driverType, driverName, machineIdent,
(RDCInitParams *)&initParams);
if(status != eReplayCreate_Success)
return status;
}
int attribs[64] = {0};
int i = 0;
GLReplay::PreContextInitCounters();
attribs[i++] = GLX_CONTEXT_MAJOR_VERSION_ARB;
attribs[i++] = 4;
attribs[i++] = GLX_CONTEXT_MINOR_VERSION_ARB;
attribs[i++] = 3;
attribs[i++] = GLX_CONTEXT_FLAGS_ARB;
#if ENABLED(RDOC_DEVEL)
attribs[i++] = GLX_CONTEXT_DEBUG_BIT_ARB;
#else
attribs[i++] = 0;
#endif
attribs[i++] = GLX_CONTEXT_PROFILE_MASK_ARB;
attribs[i++] = GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
Display *dpy = XOpenDisplay(NULL);
if(dpy == NULL)
{
RDCERR("Couldn't open default X display");
return eReplayCreate_APIInitFailed;
}
// don't need to care about the fb config as we won't be using the default framebuffer
// (backbuffer)
static int visAttribs[] = {0};
int numCfgs = 0;
GLXFBConfig *fbcfg = glXChooseFBConfigProc(dpy, DefaultScreen(dpy), visAttribs, &numCfgs);
if(fbcfg == NULL)
{
XCloseDisplay(dpy);
GLReplay::PostContextShutdownCounters();
RDCERR("Couldn't choose default framebuffer config");
return eReplayCreate_APIInitFailed;
}
GLXContext ctx = glXCreateContextAttribsProc(dpy, fbcfg[0], 0, true, attribs);
if(ctx == NULL)
{
XFree(fbcfg);
XCloseDisplay(dpy);
GLReplay::PostContextShutdownCounters();
RDCERR("Couldn't create 4.3 context - RenderDoc requires OpenGL 4.3 availability");
return eReplayCreate_APIHardwareUnsupported;
}
// don't care about pbuffer properties for same reason as backbuffer
int pbAttribs[] = {GLX_PBUFFER_WIDTH, 32, GLX_PBUFFER_HEIGHT, 32, 0};
GLXPbuffer pbuffer = glXCreatePbufferProc(dpy, fbcfg[0], pbAttribs);
XFree(fbcfg);
Bool res = glXMakeContextCurrentProc(dpy, pbuffer, pbuffer, ctx);
if(!res)
{
glXDestroyPbufferProc(dpy, pbuffer);
glXDestroyCtxProc(dpy, ctx);
XFree(fbcfg);
XCloseDisplay(dpy);
GLReplay::PostContextShutdownCounters();
RDCERR("Couldn't make pbuffer & context current");
return eReplayCreate_APIInitFailed;
}
PFNGLGETINTEGERVPROC getInt =
(PFNGLGETINTEGERVPROC)glXGetFuncProc((const GLubyte *)"glGetIntegerv");
PFNGLGETSTRINGPROC getStr = (PFNGLGETSTRINGPROC)glXGetFuncProc((const GLubyte *)"glGetString");
PFNGLGETSTRINGIPROC getStri =
(PFNGLGETSTRINGIPROC)glXGetFuncProc((const GLubyte *)"glGetStringi");
if(getInt == NULL || getStr == NULL || getStri == NULL)
{
RDCERR("Couldn't get glGetIntegerv (%p), glGetString (%p) or glGetStringi (%p) entry points",
getInt, getStr, getStri);
glXDestroyPbufferProc(dpy, pbuffer);
glXDestroyCtxProc(dpy, ctx);
XFree(fbcfg);
XCloseDisplay(dpy);
GLReplay::PostContextShutdownCounters();
return eReplayCreate_APIInitFailed;
}
else
{
// eventually we want to emulate EXT_dsa on replay if it isn't present, but for
// now we just require it.
bool dsa = false;
bool bufstorage = false;
if(getStr)
RDCLOG("Running GL replay on: %s / %s / %s", getStr(eGL_VENDOR), getStr(eGL_RENDERER),
getStr(eGL_VERSION));
GLint numExts = 0;
getInt(eGL_NUM_EXTENSIONS, &numExts);
for(GLint e = 0; e < numExts; e++)
{
const char *ext = (const char *)getStri(eGL_EXTENSIONS, (GLuint)e);
RDCLOG("Extension % 3d: %s", e, ext);
if(!strcmp(ext, "GL_EXT_direct_state_access"))
dsa = true;
if(!strcmp(ext, "GL_ARB_buffer_storage"))
bufstorage = true;
}
if(!dsa)
RDCERR(
"RenderDoc requires EXT_direct_state_access availability, and it is not reported. Try "
"updating your drivers.");
if(!bufstorage)
RDCERR(
"RenderDoc requires ARB_buffer_storage availability, and it is not reported. Try "
"updating your drivers.");
if(!dsa || !bufstorage)
{
glXDestroyPbufferProc(dpy, pbuffer);
glXDestroyCtxProc(dpy, ctx);
XFree(fbcfg);
XCloseDisplay(dpy);
GLReplay::PostContextShutdownCounters();
return eReplayCreate_APIHardwareUnsupported;
}
}
WrappedOpenGL *gl = new WrappedOpenGL(logfile, GetRealGLFunctions());
gl->Initialise(initParams);
if(gl->GetSerialiser()->HasError())
{
delete gl;
return eReplayCreate_FileIOFailed;
}
RDCLOG("Created device.");
GLReplay *replay = gl->GetReplay();
replay->SetProxy(logfile == NULL);
GLWindowingData data;
data.dpy = dpy;
data.ctx = ctx;
data.wnd = pbuffer;
replay->SetReplayData(data);
*driver = (IReplayDriver *)replay;
return eReplayCreate_Success;
}