Vulkan: Fall back on (XLib-)XCB if (regular)XLib is not supported by the loader/icd.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5014 fc73d0e0-1445-4013-8a0c-d673dee63da5

engine/client/renderer.c

@@ -1163,7 +1163,10 @@ qboolean R_ApplyRenderer (rendererstate_t *newr)
 	if (qrenderer == QR_NONE)
 	{
 		if (newr->renderer->rtype == qrenderer && currentrendererstate.renderer)
+		{
+		        R_SetRenderer(newr->renderer);
 			return true;	//no point
+		}
 
 		Sys_CloseTerminal ();
 	}

engine/client/snd_dma.c

@@ -2015,7 +2015,6 @@ void S_Init (void)
 #ifdef VOICECHAT
 	S_Voip_Init();
 #endif
-	S_EnumerateDevices();
 
 #ifdef MULTITHREAD
 	mixermutex = Sys_CreateMutex();
@@ -2032,6 +2031,8 @@ void S_Init (void)
 		return;
 	}
 
+	S_EnumerateDevices();
+
 	p = COM_CheckParm ("-soundspeed");
 	if (!p)
 		p = COM_CheckParm ("-sspeed");

engine/gl/gl_vidlinuxglx.c

@@ -60,7 +60,8 @@ none of these issues will be fixed by a compositing window manager, because ther
 
 #ifdef VKQUAKE
 #include "vk/vkrenderer.h"
-static qboolean XVK_SetupSurface(void);
+static qboolean XVK_SetupSurface_XLib(void);
+static qboolean XVK_SetupSurface_XCB(void);
 #endif
 #ifdef GLQUAKE
 #include <GL/glx.h>
@@ -184,9 +185,10 @@ static struct
 	XIC			unicodecontext;
 	XIM			inputmethod;
 } x11;
+
 static qboolean x11_initlib(void)
 {
-	dllfunction_t x11_functable[] =
+	static dllfunction_t x11_functable[] =
 	{
 		{(void**)&x11.pXChangeProperty,		"XChangeProperty"},
 		{(void**)&x11.pXCloseDisplay,		"XCloseDisplay"},
@@ -281,6 +283,35 @@ static qboolean x11_initlib(void)
 	return !!x11.lib;
 }
 
+#ifdef VK_USE_PLATFORM_XCB_KHR
+static struct
+{
+	void *lib;
+	xcb_connection_t *(*pXGetXCBConnection)(Display *dpy);
+} x11xcb;
+static qboolean x11xcb_initlib(void)
+{
+	static dllfunction_t x11xcb_functable[] =
+	{
+		{(void**)&x11xcb.pXGetXCBConnection,		"XGetXCBConnection"},
+		{NULL, NULL}
+	};
+
+	if (!x11xcb.lib)
+	{
+		x11xcb.lib = Sys_LoadLibrary("libX11-xcb.so.1", x11xcb_functable);
+		if (!x11xcb.lib)
+			x11xcb.lib = Sys_LoadLibrary("libX11-xcb", x11xcb_functable);
+
+		if (!x11xcb.lib)
+			Con_Printf("Unable to load libX11-xcb\n");
+	}
+	
+	return !!x11xcb.lib;
+}
+#endif
+
+
 #define FULLSCREEN_VMODE	1	//using xf86 vidmode (we can actually change modes)
 #define FULLSCREEN_VMODEACTIVE	2	//xf86 vidmode currently forced
 #define FULLSCREEN_LEGACY	4	//override redirect used
@@ -333,7 +364,7 @@ static struct
 } vm;
 static qboolean VMODE_Init(void)
 {
-	dllfunction_t vm_functable[] =
+	static dllfunction_t vm_functable[] =
 	{
 		{(void**)&vm.pXF86VidModeQueryVersion, "XF86VidModeQueryVersion"},
 		{(void**)&vm.pXF86VidModeGetGammaRampSize, "XF86VidModeGetGammaRampSize"},
@@ -401,7 +432,7 @@ static struct
 } dgam;
 static qboolean DGAM_Init(void)
 {
-	dllfunction_t dgam_functable[] =
+	static dllfunction_t dgam_functable[] =
 	{
 		{(void**)&dgam.pXF86DGADirectVideo, "XF86DGADirectVideo"},
 		{NULL, NULL}
@@ -467,7 +498,7 @@ static struct
 } xi2;
 static qboolean XI2_Init(void)
 {
-	dllfunction_t xi2_functable[] =
+	static dllfunction_t xi2_functable[] =
 	{
 		{(void**)&xi2.pXIQueryVersion, "XIQueryVersion"},
 		{(void**)&xi2.pXISelectEvents, "XISelectEvents"},
@@ -1901,12 +1932,17 @@ qboolean X11VID_Init (rendererstate_t *info, unsigned char *palette, int psl)
 #endif
 #ifdef VKQUAKE
 	case PSL_VULKAN:
-		if (!VK_Init(info, VK_KHR_XLIB_SURFACE_EXTENSION_NAME, XVK_SetupSurface))
+#ifdef VK_USE_PLATFORM_XLIB_KHR
-		{
+		if (VK_Init(info, VK_KHR_XLIB_SURFACE_EXTENSION_NAME, XVK_SetupSurface_XLib))
-			Con_Printf("Failed to create vulkan context.\n");
-			GLVID_Shutdown();
-		}
 			break;
+#endif
+#ifdef VK_USE_PLATFORM_XCB_KHR
+		if (x11xcb_initlib() && VK_Init(info, VK_KHR_XCB_SURFACE_EXTENSION_NAME, XVK_SetupSurface_XCB))
+			break;
+#endif
+		Con_Printf("Failed to create a vulkan context.\n");
+		GLVID_Shutdown();
+		return false;
 #endif
 	case PSL_NONE:
 		break;
@@ -2190,7 +2226,8 @@ rendererinfo_t eglrendererinfo =
 #endif
 
 #ifdef VKQUAKE
-static qboolean XVK_SetupSurface(void)
+#ifdef VK_USE_PLATFORM_XLIB_KHR
+static qboolean XVK_SetupSurface_XLib(void)
 {
 	VkXlibSurfaceCreateInfoKHR inf = {VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR};
 	inf.flags = 0;
@@ -2201,6 +2238,20 @@ static qboolean XVK_SetupSurface(void)
 		return true;
 	return false;
 }
+#endif
+#ifdef VK_USE_PLATFORM_XCB_KHR
+static qboolean XVK_SetupSurface_XCB(void)
+{
+	VkXcbSurfaceCreateInfoKHR inf = {VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR};
+	inf.flags = 0;
+	inf.connection = x11xcb.pXGetXCBConnection(vid_dpy);
+	inf.window = vid_window;
+
+	if (VK_SUCCESS == vkCreateXcbSurfaceKHR(vk.instance, &inf, vkallocationcb, &vk.surface))
+		return true;
+	return false;
+}
+#endif
 rendererinfo_t vkrendererinfo =
 {
 	"Vulkan(X11)",
@@ -2323,3 +2374,4 @@ qboolean X11_GetDesktopParameters(int *width, int *height, int *bpp, int *refres
 
 	return true;
 }
+

engine/vk/vk_init.c

@@ -2803,6 +2803,24 @@ qboolean VK_Init(rendererstate_t *info, const char *sysextname, qboolean (*creat
 		return false;
 	case VK_ERROR_EXTENSION_NOT_PRESENT:
 		Con_Printf("VK_ERROR_EXTENSION_NOT_PRESENT: something on a system level is probably misconfigured\n");
+		{
+			uint32_t count, i, j;
+			VkExtensionProperties *ext;
+			vkEnumerateInstanceExtensionProperties(NULL, &count, NULL);
+			ext = malloc(sizeof(*ext)*count);
+			vkEnumerateInstanceExtensionProperties(NULL, &count, ext);
+			for (i = 0; i < extensions_count; i++)
+			{
+				for (j = 0; j < count; j++)
+				{
+					if (!strcmp(ext[j].extensionName, extensions[i]))
+						break;
+				}
+				if (j == count)
+					Con_Printf("Missing extension: %s\n", extensions[i]);
+			}
+			free(ext);
+		}
 		return false;
 	case VK_ERROR_LAYER_NOT_PRESENT:
 		Con_Printf("VK_ERROR_LAYER_NOT_PRESENT: requested layer is not known/usable\n");
@@ -3166,12 +3184,15 @@ void VK_Shutdown(void)
 	VKBE_RT_Gen_Cube(&vk_rt_cubemap, 0, false);
 	VK_R_BloomShutdown();
 
+	if (vk.cmdpool)
 		vkDestroyCommandPool(vk.device, vk.cmdpool, vkallocationcb);
 	VK_DestroyRenderPass();
 #ifndef THREADACQUIRE
+	if (vk.acquirefence)
 		vkDestroyFence(vk.device, vk.acquirefence, vkallocationcb);
 #endif
 
+	if (vk.pipelinecache)
 	{
 		size_t size;
 		if (VK_SUCCESS == vkGetPipelineCacheData(vk.device, vk.pipelinecache, &size, NULL))
@@ -3184,16 +3205,22 @@ void VK_Shutdown(void)
 		vkDestroyPipelineCache(vk.device, vk.pipelinecache, vkallocationcb);
 	}
 
+	if (vk.device)
 		vkDestroyDevice(vk.device, vkallocationcb);
 	if (vk_debugcallback)
 	{
 		vkDestroyDebugReportCallbackEXT(vk.instance, vk_debugcallback, vkallocationcb);
 		vk_debugcallback = VK_NULL_HANDLE;
 	}
+	if (vk.surface)
 		vkDestroySurfaceKHR(vk.instance, vk.surface, vkallocationcb);
+	if (vk.instance)
 		vkDestroyInstance(vk.instance, vkallocationcb);
+	if (vk.swapchain_mutex)
 		Sys_DestroyMutex(vk.swapchain_mutex);
+	if (vk.submitcondition)
 		Sys_DestroyConditional(vk.submitcondition);
+	if (vk.acquirecondition)
 		Sys_DestroyConditional(vk.acquirecondition);
 	memset(&vk, 0, sizeof(vk));
 	qrenderer = QR_NONE;

engine/vk/vkrenderer.h

@@ -9,6 +9,9 @@
 #ifdef __linux__
 #define VK_USE_PLATFORM_XLIB_KHR
 #define VKInstXLibFuncs VKFunc(CreateXlibSurfaceKHR)
+
+#define VK_USE_PLATFORM_XCB_KHR
+#define VKInstXCBFuncs VKFunc(CreateXcbSurfaceKHR)
 #endif
 
 #define VK_NO_PROTOTYPES
@@ -28,6 +31,11 @@
 #ifndef VKInstXLibFuncs
 #define VKInstXLibFuncs
 #endif
+#ifndef VKInstXCBFuncs
+#define VKInstXCBFuncs
+#endif
+#define VKInstArchFuncs VKInstWin32Funcs VKInstXLibFuncs VKInstXCBFuncs
+
 
 //funcs needed for creating an instance
 #define VKInstFuncs \
@@ -35,8 +43,6 @@
 	VKFunc(EnumerateInstanceExtensionProperties)	\
 	VKFunc(CreateInstance)
 
-#define VKInstArchFuncs VKInstWin32Funcs VKInstXLibFuncs
-
 //funcs specific to an instance
 #define VKInst2Funcs \
 	VKFunc(EnumeratePhysicalDevices)				\