-
/**
* Functions related to EGLDisplay.
*/
#include "egldisplay.h"
#include "egldriver.h"
#include "eglglobals.h"
-#include "eglhash.h"
-#include "eglstring.h"
+#include "eglmutex.h"
+#include "egllog.h"
/**
- * Allocate a new _EGLDisplay object for the given nativeDisplay handle.
- * We'll also try to determine the device driver name at this time.
- *
- * Note that nativeDisplay may be an X Display ptr, or a string.
+ * Return the native platform by parsing EGL_PLATFORM.
*/
-_EGLDisplay *
-_eglNewDisplay(NativeDisplayType nativeDisplay)
+static _EGLPlatformType
+_eglGetNativePlatformFromEnv(void)
{
- _EGLDisplay *dpy = (_EGLDisplay *) calloc(1, sizeof(_EGLDisplay));
- if (dpy) {
- dpy->NativeDisplay = nativeDisplay;
-#if defined(_EGL_PLATFORM_X)
- dpy->Xdpy = (Display *) nativeDisplay;
-#endif
-
- dpy->DriverName = _eglChooseDriver(dpy);
- if (!dpy->DriverName) {
- free(dpy);
- return NULL;
+ /* 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;
+
+ plat_name = getenv("EGL_PLATFORM");
+ /* try deprecated env variable */
+ if (!plat_name || !plat_name[0])
+ plat_name = getenv("EGL_DISPLAY");
+ if (!plat_name || !plat_name[0])
+ return _EGL_INVALID_PLATFORM;
+
+ for (i = 0; i < _EGL_NUM_PLATFORMS; i++) {
+ if (strcmp(egl_platforms[i].name, plat_name) == 0) {
+ plat = egl_platforms[i].platform;
+ break;
}
}
- return dpy;
+
+ return plat;
}
/**
- * Link a display to itself and return the handle of the link.
- * The handle can be passed to client directly.
+ * Return the native platform. It is the platform of the EGL native types.
*/
-EGLDisplay
-_eglLinkDisplay(_EGLDisplay *dpy)
+_EGLPlatformType
+_eglGetNativePlatform(void)
{
- EGLuint key;
- key = _eglHashGenKey(_eglGlobal.Displays);
- assert(key);
- /* "link" the display to the hash table */
- _eglHashInsert(_eglGlobal.Displays, key, dpy);
- dpy->Handle = (EGLDisplay) key;
-
- return dpy->Handle;
+ static _EGLPlatformType native_platform = _EGL_INVALID_PLATFORM;
+
+ if (native_platform == _EGL_INVALID_PLATFORM) {
+ native_platform = _eglGetNativePlatformFromEnv();
+ if (native_platform == _EGL_INVALID_PLATFORM)
+ native_platform = _EGL_NATIVE_PLATFORM;
+ }
+
+ return native_platform;
}
/**
- * Unlink a linked display from itself.
- * Accessing an unlinked display should generate EGL_BAD_DISPLAY error.
+ * Finish display management.
*/
void
-_eglUnlinkDisplay(_EGLDisplay *dpy)
+_eglFiniDisplay(void)
{
- _eglHashRemove(_eglGlobal.Displays, (EGLuint) dpy->Handle);
- dpy->Handle = EGL_NO_DISPLAY;
-}
+ _EGLDisplay *dpyList, *dpy;
+ /* atexit function is called with global mutex locked */
+ dpyList = _eglGlobal.DisplayList;
+ while (dpyList) {
+ EGLint i;
-/**
- * Return the handle of a linked display, or EGL_NO_DISPLAY.
- */
-EGLDisplay
-_eglGetDisplayHandle(_EGLDisplay *display)
-{
- if (display)
- return display->Handle;
- else
- return EGL_NO_DISPLAY;
-}
+ /* pop list head */
+ dpy = dpyList;
+ dpyList = dpyList->Next;
-
-/**
- * Lookup a handle to find the linked display.
- * Return NULL if the handle has no corresponding linked display.
- */
-_EGLDisplay *
-_eglLookupDisplay(EGLDisplay dpy)
-{
- EGLuint key = (EGLuint) dpy;
- return (_EGLDisplay *) _eglHashLookup(_eglGlobal.Displays, key);
+ for (i = 0; i < _EGL_NUM_RESOURCES; i++) {
+ if (dpy->ResourceLists[i]) {
+ _eglLog(_EGL_DEBUG, "Display %p is destroyed with resources", dpy);
+ break;
+ }
+ }
+
+ free(dpy);
+ }
+ _eglGlobal.DisplayList = NULL;
}
/**
- * Find the display corresponding to the specified native display id in all
- * linked displays.
+ * Find the display corresponding to the specified native display, or create a
+ * new one.
*/
_EGLDisplay *
-_eglFindDisplay(NativeDisplayType nativeDisplay)
+_eglFindDisplay(_EGLPlatformType plat, void *plat_dpy)
{
- EGLuint key = _eglHashFirstEntry(_eglGlobal.Displays);
+ _EGLDisplay *dpy;
+
+ if (plat == _EGL_INVALID_PLATFORM)
+ return NULL;
+
+ _eglLockMutex(_eglGlobal.Mutex);
- /* Walk the hash table. Should switch to list if it is a problem. */
- while (key) {
- _EGLDisplay *dpy = (_EGLDisplay *)
- _eglHashLookup(_eglGlobal.Displays, key);
- assert(dpy);
+ /* search the display list first */
+ dpy = _eglGlobal.DisplayList;
+ while (dpy) {
+ if (dpy->Platform == plat && dpy->PlatformDisplay == plat_dpy)
+ break;
+ dpy = dpy->Next;
+ }
- if (dpy->NativeDisplay == nativeDisplay)
- return dpy;
- key = _eglHashNextEntry(_eglGlobal.Displays, key);
+ /* 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;
+ }
}
- return NULL;
+ _eglUnlockMutex(_eglGlobal.Mutex);
+
+ return dpy;
}
* Destroy the contexts and surfaces that are linked to the display.
*/
void
-_eglReleaseDisplayResources(_EGLDriver *drv, EGLDisplay dpy)
+_eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *display)
{
- _EGLDisplay *display;
- _EGLContext *contexts;
- _EGLSurface *surfaces;
-
- display = _eglLookupDisplay(dpy);
- if (!display)
- return;
- contexts = display->ContextList;
- surfaces = display->SurfaceList;
-
- while (contexts) {
- EGLContext handle = _eglGetContextHandle(contexts);
- contexts = contexts->Next;
- drv->API.DestroyContext(drv, dpy, handle);
+ _EGLResource *list;
+
+ list = display->ResourceLists[_EGL_RESOURCE_CONTEXT];
+ while (list) {
+ _EGLContext *ctx = (_EGLContext *) list;
+ list = list->Next;
+
+ _eglUnlinkContext(ctx);
+ drv->API.DestroyContext(drv, display, ctx);
}
- assert(!display->ContextList);
+ assert(!display->ResourceLists[_EGL_RESOURCE_CONTEXT]);
- while (surfaces) {
- EGLSurface handle = _eglGetSurfaceHandle(surfaces);
- surfaces = surfaces->Next;
- drv->API.DestroySurface(drv, dpy, handle);
+ list = display->ResourceLists[_EGL_RESOURCE_SURFACE];
+ while (list) {
+ _EGLSurface *surf = (_EGLSurface *) list;
+ list = list->Next;
+
+ _eglUnlinkSurface(surf);
+ drv->API.DestroySurface(drv, display, surf);
}
- assert(!display->SurfaceList);
+ assert(!display->ResourceLists[_EGL_RESOURCE_SURFACE]);
}
void
_eglCleanupDisplay(_EGLDisplay *disp)
{
- EGLint i;
-
- for (i = 0; i < disp->NumConfigs; i++) {
- free(disp->Configs[i]);
+ if (disp->Configs) {
+ _eglDestroyArray(disp->Configs, free);
+ disp->Configs = NULL;
}
- free(disp->Configs);
- disp->Configs = NULL;
/* XXX incomplete */
-
- free((void *) disp->DriverName);
- disp->DriverName = NULL;
-
- /* driver deletes the _EGLDisplay object */
}
/**
- * Link a context to a display and return the handle of the link.
- * The handle can be passed to client directly.
+ * Return EGL_TRUE if the given handle is a valid handle to a display.
*/
-EGLContext
-_eglLinkContext(_EGLContext *ctx, _EGLDisplay *dpy)
+EGLBoolean
+_eglCheckDisplayHandle(EGLDisplay dpy)
{
- ctx->Display = dpy;
- ctx->Next = dpy->ContextList;
- dpy->ContextList = ctx;
- return (EGLContext) ctx;
+ _EGLDisplay *cur;
+
+ _eglLockMutex(_eglGlobal.Mutex);
+ cur = _eglGlobal.DisplayList;
+ while (cur) {
+ if (cur == (_EGLDisplay *) dpy)
+ break;
+ cur = cur->Next;
+ }
+ _eglUnlockMutex(_eglGlobal.Mutex);
+ return (cur != NULL);
}
/**
- * Unlink a linked context from its display.
- * Accessing an unlinked context should generate EGL_BAD_CONTEXT error.
+ * Return EGL_TRUE if the given resource is valid. That is, the display does
+ * own the resource.
*/
-void
-_eglUnlinkContext(_EGLContext *ctx)
+EGLBoolean
+_eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy)
{
- _EGLContext *prev;
-
- prev = ctx->Display->ContextList;
- if (prev != ctx) {
- while (prev) {
- if (prev->Next == ctx)
- break;
- prev = prev->Next;
+ _EGLResource *list = dpy->ResourceLists[type];
+
+ if (!res)
+ return EGL_FALSE;
+
+ while (list) {
+ if (res == (void *) list) {
+ assert(list->Display == dpy);
+ break;
}
- assert(prev);
- prev->Next = ctx->Next;
- }
- else {
- ctx->Display->ContextList = ctx->Next;
+ list = list->Next;
}
- ctx->Next = NULL;
- ctx->Display = NULL;
+ return (list != NULL);
}
/**
- * Return the handle of a linked context, or EGL_NO_CONTEXT.
+ * Initialize a display resource.
*/
-EGLContext
-_eglGetContextHandle(_EGLContext *ctx)
+void
+_eglInitResource(_EGLResource *res, EGLint size, _EGLDisplay *dpy)
{
- return (EGLContext) (ctx && ctx->Display) ? ctx : EGL_NO_CONTEXT;
+ memset(res, 0, size);
+ res->Display = dpy;
+ res->RefCount = 1;
}
/**
- * Lookup a handle to find the linked context.
- * Return NULL if the handle has no corresponding linked context.
+ * Increment reference count for the resource.
*/
-_EGLContext *
-_eglLookupContext(EGLContext ctx)
+void
+_eglGetResource(_EGLResource *res)
{
- _EGLContext *context = (_EGLContext *) ctx;
- return (context && context->Display) ? context : NULL;
+ assert(res && res->RefCount > 0);
+ /* hopefully a resource is always manipulated with its display locked */
+ res->RefCount++;
}
/**
- * Link a surface to a display and return the handle of the link.
- * The handle can be passed to client directly.
+ * Decrement reference count for the resource.
*/
-EGLSurface
-_eglLinkSurface(_EGLSurface *surf, _EGLDisplay *dpy)
+EGLBoolean
+_eglPutResource(_EGLResource *res)
{
- EGLuint key;
+ assert(res && res->RefCount > 0);
+ res->RefCount--;
+ return (!res->RefCount);
+}
- surf->Display = dpy;
- surf->Next = dpy->SurfaceList;
- dpy->SurfaceList = surf;
- key = _eglHashGenKey(_eglGlobal.Surfaces);
- assert(key);
- _eglHashInsert(_eglGlobal.Surfaces, key, surf);
+/**
+ * Link a resource to its display.
+ */
+void
+_eglLinkResource(_EGLResource *res, _EGLResourceType type)
+{
+ assert(res->Display);
- surf->Handle = (EGLSurface) key;
- return surf->Handle;
+ res->IsLinked = EGL_TRUE;
+ res->Next = res->Display->ResourceLists[type];
+ res->Display->ResourceLists[type] = res;
+ _eglGetResource(res);
}
/**
- * Unlink a linked surface from its display.
- * Accessing an unlinked surface should generate EGL_BAD_SURFACE error.
+ * Unlink a linked resource from its display.
*/
void
-_eglUnlinkSurface(_EGLSurface *surf)
+_eglUnlinkResource(_EGLResource *res, _EGLResourceType type)
{
- _EGLSurface *prev;
-
- _eglHashRemove(_eglGlobal.Surfaces, (EGLuint) surf->Handle);
- surf->Handle = EGL_NO_SURFACE;
+ _EGLResource *prev;
- prev = surf->Display->SurfaceList;
- if (prev != surf) {
+ prev = res->Display->ResourceLists[type];
+ if (prev != res) {
while (prev) {
- if (prev->Next == surf)
+ if (prev->Next == res)
break;
prev = prev->Next;
}
assert(prev);
- prev->Next = surf->Next;
+ prev->Next = res->Next;
}
else {
- prev = NULL;
- surf->Display->SurfaceList = surf->Next;
+ res->Display->ResourceLists[type] = res->Next;
}
- surf->Next = NULL;
- surf->Display = NULL;
-}
-
+ res->Next = NULL;
+ res->IsLinked = EGL_FALSE;
+ _eglPutResource(res);
-/**
- * Return the handle of a linked surface, or EGL_NO_SURFACE.
- */
-EGLSurface
-_eglGetSurfaceHandle(_EGLSurface *surface)
-{
- if (surface)
- return surface->Handle;
- else
- return EGL_NO_SURFACE;
-}
-
-
-/**
- * Lookup a handle to find the linked surface.
- * Return NULL if the handle has no corresponding linked surface.
- */
-_EGLSurface *
-_eglLookupSurface(EGLSurface surf)
-{
- _EGLSurface *c = (_EGLSurface *) _eglHashLookup(_eglGlobal.Surfaces,
- (EGLuint) surf);
- return c;
+ /* We always unlink before destroy. The driver still owns a reference */
+ assert(res->RefCount);
}
projects / mesa.git / blobdiff