/**************************************************************************
*
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2008 VMware, Inc.
* Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
* Copyright 2010-2011 LunarG, Inc.
* All Rights Reserved.
#include <assert.h>
#include <stdlib.h>
#include <string.h>
+#include "c11/threads.h"
+#include "util/u_atomic.h"
+
#include "eglcontext.h"
+#include "eglcurrent.h"
#include "eglsurface.h"
#include "egldisplay.h"
#include "egldriver.h"
#include "eglglobals.h"
-#include "eglmutex.h"
#include "egllog.h"
+#include "eglimage.h"
+#include "eglsync.h"
+
+/* Includes for _eglNativePlatformDetectNativeDisplay */
+#ifdef HAVE_MINCORE
+#include <unistd.h>
+#include <sys/mman.h>
+#endif
+#ifdef HAVE_WAYLAND_PLATFORM
+#include <wayland-client.h>
+#endif
+#ifdef HAVE_DRM_PLATFORM
+#include <gbm.h>
+#endif
+
+
+/**
+ * Map --with-platforms names to platform types.
+ */
+static const struct {
+ _EGLPlatformType platform;
+ const char *name;
+} egl_platforms[_EGL_NUM_PLATFORMS] = {
+ { _EGL_PLATFORM_X11, "x11" },
+ { _EGL_PLATFORM_WAYLAND, "wayland" },
+ { _EGL_PLATFORM_DRM, "drm" },
+ { _EGL_PLATFORM_ANDROID, "android" },
+ { _EGL_PLATFORM_HAIKU, "haiku" },
+ { _EGL_PLATFORM_SURFACELESS, "surfaceless" },
+};
/**
static _EGLPlatformType
_eglGetNativePlatformFromEnv(void)
{
- /* map --with-egl-platforms names to platform types */
- static const struct {
- _EGLPlatformType platform;
- const char *name;
- } egl_platforms[_EGL_NUM_PLATFORMS] = {
- { _EGL_PLATFORM_WINDOWS, "gdi" },
- { _EGL_PLATFORM_X11, "x11" },
- { _EGL_PLATFORM_WAYLAND, "wayland" },
- { _EGL_PLATFORM_DRM, "drm" },
- { _EGL_PLATFORM_FBDEV, "fbdev" }
- };
_EGLPlatformType plat = _EGL_INVALID_PLATFORM;
const char *plat_name;
EGLint i;
}
+/**
+ * Perform validity checks on a generic pointer.
+ */
+static EGLBoolean
+_eglPointerIsDereferencable(void *p)
+{
+#ifdef HAVE_MINCORE
+ uintptr_t addr = (uintptr_t) p;
+ unsigned char valid = 0;
+ const long page_size = getpagesize();
+
+ if (p == NULL)
+ return EGL_FALSE;
+
+ /* align addr to page_size */
+ addr &= ~(page_size - 1);
+
+ if (mincore((void *) addr, page_size, &valid) < 0) {
+ _eglLog(_EGL_DEBUG, "mincore failed: %m");
+ return EGL_FALSE;
+ }
+
+ return (valid & 0x01) == 0x01;
+#else
+ return p != NULL;
+#endif
+}
+
+
+/**
+ * Try detecting native platform with the help of native display characteristcs.
+ */
+static _EGLPlatformType
+_eglNativePlatformDetectNativeDisplay(void *nativeDisplay)
+{
+ if (nativeDisplay == EGL_DEFAULT_DISPLAY)
+ return _EGL_INVALID_PLATFORM;
+
+ if (_eglPointerIsDereferencable(nativeDisplay)) {
+ void *first_pointer = *(void **) nativeDisplay;
+
+ (void) first_pointer; /* silence unused var warning */
+
+#ifdef HAVE_WAYLAND_PLATFORM
+ /* wl_display is a wl_proxy, which is a wl_object.
+ * wl_object's first element points to the interfacetype. */
+ if (first_pointer == &wl_display_interface)
+ return _EGL_PLATFORM_WAYLAND;
+#endif
+
+#ifdef HAVE_DRM_PLATFORM
+ /* gbm has a pointer to its constructor as first element. */
+ if (first_pointer == gbm_create_device)
+ return _EGL_PLATFORM_DRM;
+#endif
+
+#ifdef HAVE_X11_PLATFORM
+ /* If not matched to any other platform, fallback to x11. */
+ return _EGL_PLATFORM_X11;
+#endif
+
+#ifdef HAVE_HAIKU_PLATFORM
+ return _EGL_PLATFORM_HAIKU;
+#endif
+ }
+
+ return _EGL_INVALID_PLATFORM;
+}
+
+
/**
* Return the native platform. It is the platform of the EGL native types.
*/
_EGLPlatformType
-_eglGetNativePlatform(void)
+_eglGetNativePlatform(void *nativeDisplay)
{
static _EGLPlatformType native_platform = _EGL_INVALID_PLATFORM;
+ _EGLPlatformType detected_platform = native_platform;
+
+ if (detected_platform == _EGL_INVALID_PLATFORM) {
+ const char *detection_method;
+
+ detected_platform = _eglGetNativePlatformFromEnv();
+ detection_method = "environment overwrite";
- if (native_platform == _EGL_INVALID_PLATFORM) {
- native_platform = _eglGetNativePlatformFromEnv();
- if (native_platform == _EGL_INVALID_PLATFORM)
- native_platform = _EGL_NATIVE_PLATFORM;
+ if (detected_platform == _EGL_INVALID_PLATFORM) {
+ detected_platform = _eglNativePlatformDetectNativeDisplay(nativeDisplay);
+ detection_method = "autodetected";
+ }
+
+ if (detected_platform == _EGL_INVALID_PLATFORM) {
+ detected_platform = _EGL_NATIVE_PLATFORM;
+ detection_method = "build-time configuration";
+ }
+
+ _eglLog(_EGL_DEBUG, "Native platform type: %s (%s)",
+ egl_platforms[detected_platform].name, detection_method);
+
+ p_atomic_cmpxchg(&native_platform, _EGL_INVALID_PLATFORM,
+ detected_platform);
}
return native_platform;
if (plat == _EGL_INVALID_PLATFORM)
return NULL;
- _eglLockMutex(_eglGlobal.Mutex);
+ mtx_lock(_eglGlobal.Mutex);
/* search the display list first */
dpy = _eglGlobal.DisplayList;
/* create a new display */
if (!dpy) {
- dpy = (_EGLDisplay *) calloc(1, sizeof(_EGLDisplay));
+ dpy = calloc(1, sizeof(_EGLDisplay));
if (dpy) {
- _eglInitMutex(&dpy->Mutex);
+ mtx_init(&dpy->Mutex, mtx_plain);
dpy->Platform = plat;
dpy->PlatformDisplay = plat_dpy;
}
}
- _eglUnlockMutex(_eglGlobal.Mutex);
+ mtx_unlock(_eglGlobal.Mutex);
return dpy;
}
drv->API.DestroySurface(drv, display, surf);
}
assert(!display->ResourceLists[_EGL_RESOURCE_SURFACE]);
+
+ list = display->ResourceLists[_EGL_RESOURCE_IMAGE];
+ while (list) {
+ _EGLImage *image = (_EGLImage *) list;
+ list = list->Next;
+
+ _eglUnlinkImage(image);
+ drv->API.DestroyImageKHR(drv, display, image);
+ }
+ assert(!display->ResourceLists[_EGL_RESOURCE_IMAGE]);
+
+ list = display->ResourceLists[_EGL_RESOURCE_SYNC];
+ while (list) {
+ _EGLSync *sync = (_EGLSync *) list;
+ list = list->Next;
+
+ _eglUnlinkSync(sync);
+ drv->API.DestroySyncKHR(drv, display, sync);
+ }
+ assert(!display->ResourceLists[_EGL_RESOURCE_SYNC]);
}
{
_EGLDisplay *cur;
- _eglLockMutex(_eglGlobal.Mutex);
+ mtx_lock(_eglGlobal.Mutex);
cur = _eglGlobal.DisplayList;
while (cur) {
if (cur == (_EGLDisplay *) dpy)
break;
cur = cur->Next;
}
- _eglUnlockMutex(_eglGlobal.Mutex);
+ mtx_unlock(_eglGlobal.Mutex);
return (cur != NULL);
}
/**
- * Initialize a display resource.
+ * Initialize a display resource. The size of the subclass object is
+ * specified.
+ *
+ * This is supposed to be called from the initializers of subclasses, such as
+ * _eglInitContext or _eglInitSurface.
*/
void
_eglInitResource(_EGLResource *res, EGLint size, _EGLDisplay *dpy)
/* We always unlink before destroy. The driver still owns a reference */
assert(res->RefCount);
}
+
+#ifdef HAVE_X11_PLATFORM
+static EGLBoolean
+_eglParseX11DisplayAttribList(_EGLDisplay *display, const EGLint *attrib_list)
+{
+ int i;
+
+ if (attrib_list == NULL) {
+ return EGL_TRUE;
+ }
+
+ for (i = 0; attrib_list[i] != EGL_NONE; i += 2) {
+ EGLint attrib = attrib_list[i];
+ EGLint value = attrib_list[i + 1];
+
+ /* EGL_EXT_platform_x11 recognizes exactly one attribute,
+ * EGL_PLATFORM_X11_SCREEN_EXT, which is optional.
+ */
+ if (attrib != EGL_PLATFORM_X11_SCREEN_EXT)
+ return _eglError(EGL_BAD_ATTRIBUTE, "eglGetPlatformDisplay");
+
+ display->Options.Platform = (void *)(uintptr_t)value;
+ }
+
+ return EGL_TRUE;
+}
+
+_EGLDisplay*
+_eglGetX11Display(Display *native_display,
+ const EGLint *attrib_list)
+{
+ _EGLDisplay *display = _eglFindDisplay(_EGL_PLATFORM_X11,
+ native_display);
+
+ if (!display) {
+ _eglError(EGL_BAD_ALLOC, "eglGetPlatformDisplay");
+ return NULL;
+ }
+
+ if (!_eglParseX11DisplayAttribList(display, attrib_list)) {
+ return NULL;
+ }
+
+ return display;
+}
+#endif /* HAVE_X11_PLATFORM */
+
+#ifdef HAVE_DRM_PLATFORM
+_EGLDisplay*
+_eglGetGbmDisplay(struct gbm_device *native_display,
+ const EGLint *attrib_list)
+{
+ /* EGL_MESA_platform_gbm recognizes no attributes. */
+ if (attrib_list != NULL && attrib_list[0] != EGL_NONE) {
+ _eglError(EGL_BAD_ATTRIBUTE, "eglGetPlatformDisplay");
+ return NULL;
+ }
+
+ return _eglFindDisplay(_EGL_PLATFORM_DRM, native_display);
+}
+#endif /* HAVE_DRM_PLATFORM */
+
+#ifdef HAVE_WAYLAND_PLATFORM
+_EGLDisplay*
+_eglGetWaylandDisplay(struct wl_display *native_display,
+ const EGLint *attrib_list)
+{
+ /* EGL_EXT_platform_wayland recognizes no attributes. */
+ if (attrib_list != NULL && attrib_list[0] != EGL_NONE) {
+ _eglError(EGL_BAD_ATTRIBUTE, "eglGetPlatformDisplay");
+ return NULL;
+ }
+
+ return _eglFindDisplay(_EGL_PLATFORM_WAYLAND, native_display);
+}
+#endif /* HAVE_WAYLAND_PLATFORM */
+
+#ifdef HAVE_SURFACELESS_PLATFORM
+_EGLDisplay*
+_eglGetSurfacelessDisplay(void *native_display,
+ const EGLint *attrib_list)
+{
+ /* This platform has no native display. */
+ if (native_display != NULL) {
+ _eglError(EGL_BAD_PARAMETER, "eglGetPlatformDisplay");
+ return NULL;
+ }
+
+ /* This platform recognizes no display attributes. */
+ if (attrib_list != NULL && attrib_list[0] != EGL_NONE) {
+ _eglError(EGL_BAD_ATTRIBUTE, "eglGetPlatformDisplay");
+ return NULL;
+ }
+
+ return _eglFindDisplay(_EGL_PLATFORM_SURFACELESS, native_display);
+}
+#endif /* HAVE_SURFACELESS_PLATFORM */
projects / mesa.git / blobdiff