X-Git-Url: https://git.libre-soc.org/?p=mesa.git;a=blobdiff_plain;f=src%2Fegl%2Fmain%2Fegldisplay.c;h=418ab0ec9b871a12a80ee212cf9e44752141aeb9;hp=565e44d2d23c8fc98d292aaa77983772042d2bdb;hb=2b29cf2468677a9e9b24b7854e6c2a7acd42a505;hpb=dbf3a15313eed930a3d8fdde12e457259c43651b diff --git a/src/egl/main/egldisplay.c b/src/egl/main/egldisplay.c index 565e44d2d23..418ab0ec9b8 100644 --- a/src/egl/main/egldisplay.c +++ b/src/egl/main/egldisplay.c @@ -1,3 +1,33 @@ +/************************************************************************** + * + * Copyright 2008 VMware, Inc. + * Copyright 2009-2010 Chia-I Wu + * Copyright 2010-2011 LunarG, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /** * Functions related to EGLDisplay. */ @@ -5,13 +35,42 @@ #include #include #include +#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_WAYLAND_PLATFORM +#include +#endif +#ifdef HAVE_DRM_PLATFORM +#include +#endif + + +/** + * Map build-system platform 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" }, +}; /** @@ -20,16 +79,6 @@ 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_DRM, "drm" }, - { _EGL_PLATFORM_FBDEV, "fbdev" } - }; _EGLPlatformType plat = _EGL_INVALID_PLATFORM; const char *plat_name; EGLint i; @@ -52,18 +101,77 @@ _eglGetNativePlatformFromEnv(void) } +/** + * 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 (detected_platform == _EGL_INVALID_PLATFORM) { + detected_platform = _eglNativePlatformDetectNativeDisplay(nativeDisplay); + detection_method = "autodetected"; + } - 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 = _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; @@ -76,69 +184,110 @@ _eglGetNativePlatform(void) void _eglFiniDisplay(void) { - _EGLDisplay *dpyList, *dpy; + _EGLDisplay *dispList, *disp; /* atexit function is called with global mutex locked */ - dpyList = _eglGlobal.DisplayList; - while (dpyList) { + dispList = _eglGlobal.DisplayList; + while (dispList) { EGLint i; /* pop list head */ - dpy = dpyList; - dpyList = dpyList->Next; + disp = dispList; + dispList = dispList->Next; for (i = 0; i < _EGL_NUM_RESOURCES; i++) { - if (dpy->ResourceLists[i]) { - _eglLog(_EGL_DEBUG, "Display %p is destroyed with resources", dpy); + if (disp->ResourceLists[i]) { + _eglLog(_EGL_DEBUG, "Display %p is destroyed with resources", disp); break; } } - free(dpy); + free(disp->Options.Attribs); + free(disp); } _eglGlobal.DisplayList = NULL; } +static EGLBoolean +_eglSameAttribs(const EGLAttrib *a, const EGLAttrib *b) +{ + size_t na = _eglNumAttribs(a); + size_t nb = _eglNumAttribs(b); + + /* different numbers of attributes must be different */ + if (na != nb) + return EGL_FALSE; + + /* both lists NULL are the same */ + if (!a && !b) + return EGL_TRUE; + + /* otherwise, compare the lists */ + return memcmp(a, b, na) == 0 ? EGL_TRUE : EGL_FALSE; +} /** * Find the display corresponding to the specified native display, or create a - * new one. + * new one. EGL 1.5 says: + * + * Multiple calls made to eglGetPlatformDisplay with the same parameters + * will return the same EGLDisplay handle. + * + * We read this extremely strictly, and treat a call with NULL attribs as + * different from a call with attribs only equal to { EGL_NONE }. Similarly + * we do not sort the attribute list, so even if all attribute _values_ are + * identical, different attribute orders will be considered different + * parameters. */ _EGLDisplay * -_eglFindDisplay(_EGLPlatformType plat, void *plat_dpy) +_eglFindDisplay(_EGLPlatformType plat, void *plat_dpy, + const EGLAttrib *attrib_list) { - _EGLDisplay *dpy; + _EGLDisplay *disp; + size_t num_attribs; if (plat == _EGL_INVALID_PLATFORM) return NULL; - _eglLockMutex(_eglGlobal.Mutex); + mtx_lock(_eglGlobal.Mutex); /* search the display list first */ - dpy = _eglGlobal.DisplayList; - while (dpy) { - if (dpy->Platform == plat && dpy->PlatformDisplay == plat_dpy) + disp = _eglGlobal.DisplayList; + while (disp) { + if (disp->Platform == plat && disp->PlatformDisplay == plat_dpy && + _eglSameAttribs(disp->Options.Attribs, attrib_list)) break; - dpy = dpy->Next; + disp = disp->Next; } /* create a new display */ - if (!dpy) { - dpy = (_EGLDisplay *) calloc(1, sizeof(_EGLDisplay)); - if (dpy) { - _eglInitMutex(&dpy->Mutex); - dpy->Platform = plat; - dpy->PlatformDisplay = plat_dpy; - - /* add to the display list */ - dpy->Next = _eglGlobal.DisplayList; - _eglGlobal.DisplayList = dpy; + if (!disp) { + disp = calloc(1, sizeof(_EGLDisplay)); + if (disp) { + mtx_init(&disp->Mutex, mtx_plain); + disp->Platform = plat; + disp->PlatformDisplay = plat_dpy; + num_attribs = _eglNumAttribs(attrib_list); + if (num_attribs) { + disp->Options.Attribs = calloc(num_attribs, sizeof(EGLAttrib)); + if (!disp->Options.Attribs) { + free(disp); + disp = NULL; + goto out; + } + memcpy(disp->Options.Attribs, attrib_list, + num_attribs * sizeof(EGLAttrib)); + } + /* add to the display list */ + disp->Next = _eglGlobal.DisplayList; + _eglGlobal.DisplayList = disp; } } - _eglUnlockMutex(_eglGlobal.Mutex); +out: + mtx_unlock(_eglGlobal.Mutex); - return dpy; + return disp; } @@ -169,6 +318,26 @@ _eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *display) 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]); } @@ -196,14 +365,14 @@ _eglCheckDisplayHandle(EGLDisplay dpy) { _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); } @@ -213,16 +382,16 @@ _eglCheckDisplayHandle(EGLDisplay dpy) * own the resource. */ EGLBoolean -_eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy) +_eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *disp) { - _EGLResource *list = dpy->ResourceLists[type]; + _EGLResource *list = disp->ResourceLists[type]; if (!res) return EGL_FALSE; while (list) { if (res == (void *) list) { - assert(list->Display == dpy); + assert(list->Display == disp); break; } list = list->Next; @@ -233,13 +402,17 @@ _eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy) /** - * 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) +_eglInitResource(_EGLResource *res, EGLint size, _EGLDisplay *disp) { memset(res, 0, size); - res->Display = dpy; + res->Display = disp; res->RefCount = 1; } @@ -312,3 +485,98 @@ _eglUnlinkResource(_EGLResource *res, _EGLResourceType type) /* We always unlink before destroy. The driver still owns a reference */ assert(res->RefCount); } + +#ifdef HAVE_X11_PLATFORM +static EGLBoolean +_eglParseX11DisplayAttribList(_EGLDisplay *display, + const EGLAttrib *attrib_list) +{ + int i; + + if (attrib_list == NULL) { + return EGL_TRUE; + } + + /* EGL_EXT_platform_x11 recognizes exactly one attribute, + * EGL_PLATFORM_X11_SCREEN_EXT, which is optional. + */ + for (i = 0; attrib_list[i] != EGL_NONE; i += 2) { + if (attrib_list[i] != EGL_PLATFORM_X11_SCREEN_EXT) + return _eglError(EGL_BAD_ATTRIBUTE, "eglGetPlatformDisplay"); + } + + return EGL_TRUE; +} + +_EGLDisplay* +_eglGetX11Display(Display *native_display, + const EGLAttrib *attrib_list) +{ + _EGLDisplay *display = _eglFindDisplay(_EGL_PLATFORM_X11, + native_display, + attrib_list); + + 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 EGLAttrib *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, attrib_list); +} +#endif /* HAVE_DRM_PLATFORM */ + +#ifdef HAVE_WAYLAND_PLATFORM +_EGLDisplay* +_eglGetWaylandDisplay(struct wl_display *native_display, + const EGLAttrib *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, attrib_list); +} +#endif /* HAVE_WAYLAND_PLATFORM */ + +#ifdef HAVE_SURFACELESS_PLATFORM +_EGLDisplay* +_eglGetSurfacelessDisplay(void *native_display, + const EGLAttrib *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, + attrib_list); +} +#endif /* HAVE_SURFACELESS_PLATFORM */