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author | marha <marha@users.sourceforge.net> | 2012-06-08 14:29:46 +0200 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2012-06-08 14:50:37 +0200 |
commit | 72ec0e3bb2d7fc6b77b2a75873792f781679da6a (patch) | |
tree | 0a736ab9a8c26276929ab077dc661e3625b54884 /mesalib/src/mesa/main/syncobj.c | |
parent | 5e865910f0ce672295bd60460631339be5e311a0 (diff) | |
parent | 990bc3f015a4f8fce2eb918375defcd44980a845 (diff) | |
download | vcxsrv-72ec0e3bb2d7fc6b77b2a75873792f781679da6a.tar.gz vcxsrv-72ec0e3bb2d7fc6b77b2a75873792f781679da6a.tar.bz2 vcxsrv-72ec0e3bb2d7fc6b77b2a75873792f781679da6a.zip |
Merge remote-tracking branch 'origin/released'
Conflicts:
fontconfig/.gitignore
libX11/src/ConvSel.c
libX11/src/CrGlCur.c
libX11/src/CrWindow.c
libX11/src/GetDflt.c
libX11/src/Window.c
libX11/src/xlibi18n/XimProto.h
libX11/src/xlibi18n/lcDynamic.c
libxcb/src/.gitignore
libxcb/src/xcb_ext.c
libxcb/src/xcb_xid.c
mesalib/src/glsl/.gitignore
mesalib/src/glsl/glcpp/.gitignore
mesalib/src/mapi/glapi/gen/glX_API.xml
mesalib/src/mapi/glapi/glapi_getproc.c
mesalib/src/mesa/main/.gitignore
mesalib/src/mesa/main/syncobj.c
mesalib/src/mesa/program/.gitignore
xkbcomp/listing.c
xkbcomp/xkbpath.c
xorg-server/.gitignore
xorg-server/Xext/xvmain.c
xorg-server/dix/dispatch.c
xorg-server/hw/xwin/glx/winpriv.h
xorg-server/hw/xwin/winprefsyacc.y
xorg-server/hw/xwin/winscrinit.c
xorg-server/xkeyboard-config/rules/bin/ml1_s.sh
xorg-server/xkeyboard-config/rules/bin/ml1v1_s.sh
xorg-server/xkeyboard-config/rules/bin/ml1v_s.sh
xorg-server/xkeyboard-config/rules/bin/ml_s.sh
xorg-server/xkeyboard-config/rules/bin/mlv_s.sh
xorg-server/xkeyboard-config/rules/compat/.gitignore
Diffstat (limited to 'mesalib/src/mesa/main/syncobj.c')
-rw-r--r-- | mesalib/src/mesa/main/syncobj.c | 852 |
1 files changed, 426 insertions, 426 deletions
diff --git a/mesalib/src/mesa/main/syncobj.c b/mesalib/src/mesa/main/syncobj.c index 25307a17c..85dd41aac 100644 --- a/mesalib/src/mesa/main/syncobj.c +++ b/mesalib/src/mesa/main/syncobj.c @@ -1,426 +1,426 @@ -/*
- * Copyright © 2009 Intel Corporation
- *
- * 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, sublicense,
- * 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.
- */
-
-/**
- * \file syncobj.c
- * Sync object management.
- *
- * Unlike textures and other objects that are shared between contexts, sync
- * objects are not bound to the context. As a result, the reference counting
- * and delete behavior of sync objects is slightly different. References to
- * sync objects are added:
- *
- * - By \c glFencSynce. This sets the initial reference count to 1.
- * - At the start of \c glClientWaitSync. The reference is held for the
- * duration of the wait call.
- *
- * References are removed:
- *
- * - By \c glDeleteSync.
- * - At the end of \c glClientWaitSync.
- *
- * Additionally, drivers may call \c _mesa_ref_sync_object and
- * \c _mesa_unref_sync_object as needed to implement \c ServerWaitSync.
- *
- * As with shader objects, sync object names become invalid as soon as
- * \c glDeleteSync is called. For this reason \c glDeleteSync sets the
- * \c DeletePending flag. All functions validate object handles by testing
- * this flag.
- *
- * \note
- * Only \c GL_ARB_sync objects are shared between contexts. If support is ever
- * added for either \c GL_NV_fence or \c GL_APPLE_fence different semantics
- * will need to be implemented.
- *
- * \author Ian Romanick <ian.d.romanick@intel.com>
- */
-
-#include "glheader.h"
-#include "imports.h"
-#include "context.h"
-#include "macros.h"
-#include "mfeatures.h"
-#include "get.h"
-#include "dispatch.h"
-#include "mtypes.h"
-
-#if FEATURE_ARB_sync
-#include "syncobj.h"
-
-static struct gl_sync_object *
-_mesa_new_sync_object(struct gl_context *ctx, GLenum type)
-{
- struct gl_sync_object *s = MALLOC_STRUCT(gl_sync_object);
- (void) ctx;
- (void) type;
-
- return s;
-}
-
-
-static void
-_mesa_delete_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj)
-{
- (void) ctx;
- free(syncObj);
-}
-
-
-static void
-_mesa_fence_sync(struct gl_context *ctx, struct gl_sync_object *syncObj,
- GLenum condition, GLbitfield flags)
-{
- (void) ctx;
- (void) condition;
- (void) flags;
-
- syncObj->StatusFlag = 1;
-}
-
-
-static void
-_mesa_check_sync(struct gl_context *ctx, struct gl_sync_object *syncObj)
-{
- (void) ctx;
- (void) syncObj;
-
- /* No-op for software rendering. Hardware drivers will need to determine
- * whether the state of the sync object has changed.
- */
-}
-
-
-static void
-_mesa_wait_sync(struct gl_context *ctx, struct gl_sync_object *syncObj,
- GLbitfield flags, GLuint64 timeout)
-{
- (void) ctx;
- (void) syncObj;
- (void) flags;
- (void) timeout;
-
- /* No-op for software rendering. Hardware drivers will need to wait until
- * the state of the sync object changes or the timeout expires.
- */
-}
-
-
-void GLAPIENTRY
-_mesa_init_sync_object_functions(struct dd_function_table *driver)
-{
- driver->NewSyncObject = _mesa_new_sync_object;
- driver->FenceSync = _mesa_fence_sync;
- driver->DeleteSyncObject = _mesa_delete_sync_object;
- driver->CheckSync = _mesa_check_sync;
-
- /* Use the same no-op wait function for both.
- */
- driver->ClientWaitSync = _mesa_wait_sync;
- driver->ServerWaitSync = _mesa_wait_sync;
-}
-
-
-void GLAPIENTRY
-_mesa_init_sync_dispatch(struct _glapi_table *disp)
-{
- SET_IsSync(disp, _mesa_IsSync);
- SET_DeleteSync(disp, _mesa_DeleteSync);
- SET_FenceSync(disp, _mesa_FenceSync);
- SET_ClientWaitSync(disp, _mesa_ClientWaitSync);
- SET_WaitSync(disp, _mesa_WaitSync);
- SET_GetInteger64v(disp, _mesa_GetInteger64v);
- SET_GetSynciv(disp, _mesa_GetSynciv);
-}
-
-
-/**
- * Allocate/init the context state related to sync objects.
- */
-void GLAPIENTRY
-_mesa_init_sync(struct gl_context *ctx)
-{
- (void) ctx;
-}
-
-
-/**
- * Free the context state related to sync objects.
- */
-void GLAPIENTRY
-_mesa_free_sync_data(struct gl_context *ctx)
-{
- (void) ctx;
-}
-
-
-static int
-_mesa_validate_sync(struct gl_sync_object *syncObj)
-{
- return (syncObj != NULL)
- && (syncObj->Type == GL_SYNC_FENCE)
- && !syncObj->DeletePending;
-}
-
-
-void GLAPIENTRY
-_mesa_ref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj)
-{
- _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
- syncObj->RefCount++;
- _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
-}
-
-
-void GLAPIENTRY
-_mesa_unref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj)
-{
- _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
- syncObj->RefCount--;
- if (syncObj->RefCount == 0) {
- remove_from_list(& syncObj->link);
- _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
-
- ctx->Driver.DeleteSyncObject(ctx, syncObj);
- } else {
- _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
- }
-}
-
-
-GLboolean GLAPIENTRY
-_mesa_IsSync(GLsync sync)
-{
- GET_CURRENT_CONTEXT(ctx);
- struct gl_sync_object *const syncObj = (struct gl_sync_object *) sync;
- ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
-
- return _mesa_validate_sync(syncObj) ? GL_TRUE : GL_FALSE;
-}
-
-
-void GLAPIENTRY
-_mesa_DeleteSync(GLsync sync)
-{
- GET_CURRENT_CONTEXT(ctx);
- struct gl_sync_object *const syncObj = (struct gl_sync_object *) sync;
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- /* From the GL_ARB_sync spec:
- *
- * DeleteSync will silently ignore a <sync> value of zero. An
- * INVALID_VALUE error is generated if <sync> is neither zero nor the
- * name of a sync object.
- */
- if (sync == 0) {
- return;
- }
-
- if (!_mesa_validate_sync(syncObj)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glDeleteSync");
- return;
- }
-
- /* If there are no client-waits or server-waits pending on this sync, delete
- * the underlying object.
- */
- syncObj->DeletePending = GL_TRUE;
- _mesa_unref_sync_object(ctx, syncObj);
-}
-
-
-GLsync GLAPIENTRY
-_mesa_FenceSync(GLenum condition, GLbitfield flags)
-{
- GET_CURRENT_CONTEXT(ctx);
- struct gl_sync_object *syncObj;
- ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
-
- if (condition != GL_SYNC_GPU_COMMANDS_COMPLETE) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glFenceSync(condition=0x%x)",
- condition);
- return 0;
- }
-
- if (flags != 0) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glFenceSync(flags=0x%x)",
- condition);
- return 0;
- }
-
- syncObj = ctx->Driver.NewSyncObject(ctx, GL_SYNC_FENCE);
- if (syncObj != NULL) {
- syncObj->Type = GL_SYNC_FENCE;
- /* The name is not currently used, and it is never visible to
- * applications. If sync support is extended to provide support for
- * NV_fence, this field will be used. We'll also need to add an object
- * ID hashtable.
- */
- syncObj->Name = 1;
- syncObj->RefCount = 1;
- syncObj->DeletePending = GL_FALSE;
- syncObj->SyncCondition = condition;
- syncObj->Flags = flags;
- syncObj->StatusFlag = 0;
-
- ctx->Driver.FenceSync(ctx, syncObj, condition, flags);
-
- _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
- insert_at_tail(& ctx->Shared->SyncObjects, & syncObj->link);
- _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
-
- return (GLsync) syncObj;
- }
-
- return NULL;
-}
-
-
-GLenum GLAPIENTRY
-_mesa_ClientWaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout)
-{
- GET_CURRENT_CONTEXT(ctx);
- struct gl_sync_object *const syncObj = (struct gl_sync_object *) sync;
- GLenum ret;
- ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_WAIT_FAILED);
-
- if (!_mesa_validate_sync(syncObj)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glClientWaitSync");
- return GL_WAIT_FAILED;
- }
-
- if ((flags & ~GL_SYNC_FLUSH_COMMANDS_BIT) != 0) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glClientWaitSync(flags=0x%x)", flags);
- return GL_WAIT_FAILED;
- }
-
- _mesa_ref_sync_object(ctx, syncObj);
-
- /* From the GL_ARB_sync spec:
- *
- * ClientWaitSync returns one of four status values. A return value of
- * ALREADY_SIGNALED indicates that <sync> was signaled at the time
- * ClientWaitSync was called. ALREADY_SIGNALED will always be returned
- * if <sync> was signaled, even if the value of <timeout> is zero.
- */
- ctx->Driver.CheckSync(ctx, syncObj);
- if (syncObj->StatusFlag) {
- ret = GL_ALREADY_SIGNALED;
- } else {
- ctx->Driver.ClientWaitSync(ctx, syncObj, flags, timeout);
-
- ret = syncObj->StatusFlag ? GL_CONDITION_SATISFIED : GL_TIMEOUT_EXPIRED;
- }
-
- _mesa_unref_sync_object(ctx, syncObj);
- return ret;
-}
-
-
-void GLAPIENTRY
-_mesa_WaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout)
-{
- GET_CURRENT_CONTEXT(ctx);
- struct gl_sync_object *const syncObj = (struct gl_sync_object *) sync;
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (!_mesa_validate_sync(syncObj)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glWaitSync");
- return;
- }
-
- if (flags != 0) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glWaitSync(flags=0x%x)", flags);
- return;
- }
-
- /* From the GL_ARB_sync spec:
- *
- * If the value of <timeout> is zero, then WaitSync does nothing.
- */
- if (timeout == 0) {
- return;
- }
-
- ctx->Driver.ServerWaitSync(ctx, syncObj, flags, timeout);
-}
-
-
-void GLAPIENTRY
-_mesa_GetSynciv(GLsync sync, GLenum pname, GLsizei bufSize, GLsizei *length,
- GLint *values)
-{
- GET_CURRENT_CONTEXT(ctx);
- struct gl_sync_object *const syncObj = (struct gl_sync_object *) sync;
- GLsizei size = 0;
- GLint v[1];
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (!_mesa_validate_sync(syncObj)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glGetSynciv");
- return;
- }
-
- switch (pname) {
- case GL_OBJECT_TYPE:
- v[0] = syncObj->Type;
- size = 1;
- break;
-
- case GL_SYNC_CONDITION:
- v[0] = syncObj->SyncCondition;
- size = 1;
- break;
-
- case GL_SYNC_STATUS:
- /* Update the state of the sync by dipping into the driver. Note that
- * this call won't block. It just updates state in the common object
- * data from the current driver state.
- */
- ctx->Driver.CheckSync(ctx, syncObj);
-
- v[0] = (syncObj->StatusFlag) ? GL_SIGNALED : GL_UNSIGNALED;
- size = 1;
- break;
-
- case GL_SYNC_FLAGS:
- v[0] = syncObj->Flags;
- size = 1;
- break;
-
- default:
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetSynciv(pname=0x%x)\n", pname);
- return;
- }
-
- if (size > 0) {
- const GLsizei copy_count = MIN2(size, bufSize);
-
- memcpy(values, v, sizeof(GLint) * copy_count);
- }
-
- if (length != NULL) {
- *length = size;
- }
-}
-
-#endif /* FEATURE_ARB_sync */
+/* + * Copyright © 2009 Intel Corporation + * + * 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, sublicense, + * 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. + */ + +/** + * \file syncobj.c + * Sync object management. + * + * Unlike textures and other objects that are shared between contexts, sync + * objects are not bound to the context. As a result, the reference counting + * and delete behavior of sync objects is slightly different. References to + * sync objects are added: + * + * - By \c glFencSynce. This sets the initial reference count to 1. + * - At the start of \c glClientWaitSync. The reference is held for the + * duration of the wait call. + * + * References are removed: + * + * - By \c glDeleteSync. + * - At the end of \c glClientWaitSync. + * + * Additionally, drivers may call \c _mesa_ref_sync_object and + * \c _mesa_unref_sync_object as needed to implement \c ServerWaitSync. + * + * As with shader objects, sync object names become invalid as soon as + * \c glDeleteSync is called. For this reason \c glDeleteSync sets the + * \c DeletePending flag. All functions validate object handles by testing + * this flag. + * + * \note + * Only \c GL_ARB_sync objects are shared between contexts. If support is ever + * added for either \c GL_NV_fence or \c GL_APPLE_fence different semantics + * will need to be implemented. + * + * \author Ian Romanick <ian.d.romanick@intel.com> + */ + +#include "glheader.h" +#include "imports.h" +#include "context.h" +#include "macros.h" +#include "mfeatures.h" +#include "get.h" +#include "dispatch.h" +#include "mtypes.h" + +#if FEATURE_ARB_sync +#include "syncobj.h" + +static struct gl_sync_object * +_mesa_new_sync_object(struct gl_context *ctx, GLenum type) +{ + struct gl_sync_object *s = MALLOC_STRUCT(gl_sync_object); + (void) ctx; + (void) type; + + return s; +} + + +static void +_mesa_delete_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj) +{ + (void) ctx; + free(syncObj); +} + + +static void +_mesa_fence_sync(struct gl_context *ctx, struct gl_sync_object *syncObj, + GLenum condition, GLbitfield flags) +{ + (void) ctx; + (void) condition; + (void) flags; + + syncObj->StatusFlag = 1; +} + + +static void +_mesa_check_sync(struct gl_context *ctx, struct gl_sync_object *syncObj) +{ + (void) ctx; + (void) syncObj; + + /* No-op for software rendering. Hardware drivers will need to determine + * whether the state of the sync object has changed. + */ +} + + +static void +_mesa_wait_sync(struct gl_context *ctx, struct gl_sync_object *syncObj, + GLbitfield flags, GLuint64 timeout) +{ + (void) ctx; + (void) syncObj; + (void) flags; + (void) timeout; + + /* No-op for software rendering. Hardware drivers will need to wait until + * the state of the sync object changes or the timeout expires. + */ +} + + +void GLAPIENTRY +_mesa_init_sync_object_functions(struct dd_function_table *driver) +{ + driver->NewSyncObject = _mesa_new_sync_object; + driver->FenceSync = _mesa_fence_sync; + driver->DeleteSyncObject = _mesa_delete_sync_object; + driver->CheckSync = _mesa_check_sync; + + /* Use the same no-op wait function for both. + */ + driver->ClientWaitSync = _mesa_wait_sync; + driver->ServerWaitSync = _mesa_wait_sync; +} + + +void GLAPIENTRY +_mesa_init_sync_dispatch(struct _glapi_table *disp) +{ + SET_IsSync(disp, _mesa_IsSync); + SET_DeleteSync(disp, _mesa_DeleteSync); + SET_FenceSync(disp, _mesa_FenceSync); + SET_ClientWaitSync(disp, _mesa_ClientWaitSync); + SET_WaitSync(disp, _mesa_WaitSync); + SET_GetInteger64v(disp, _mesa_GetInteger64v); + SET_GetSynciv(disp, _mesa_GetSynciv); +} + + +/** + * Allocate/init the context state related to sync objects. + */ +void GLAPIENTRY +_mesa_init_sync(struct gl_context *ctx) +{ + (void) ctx; +} + + +/** + * Free the context state related to sync objects. + */ +void GLAPIENTRY +_mesa_free_sync_data(struct gl_context *ctx) +{ + (void) ctx; +} + + +static int +_mesa_validate_sync(struct gl_sync_object *syncObj) +{ + return (syncObj != NULL) + && (syncObj->Type == GL_SYNC_FENCE) + && !syncObj->DeletePending; +} + + +void GLAPIENTRY +_mesa_ref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj) +{ + _glthread_LOCK_MUTEX(ctx->Shared->Mutex); + syncObj->RefCount++; + _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); +} + + +void GLAPIENTRY +_mesa_unref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj) +{ + _glthread_LOCK_MUTEX(ctx->Shared->Mutex); + syncObj->RefCount--; + if (syncObj->RefCount == 0) { + remove_from_list(& syncObj->link); + _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); + + ctx->Driver.DeleteSyncObject(ctx, syncObj); + } else { + _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); + } +} + + +GLboolean GLAPIENTRY +_mesa_IsSync(GLsync sync) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_sync_object *const syncObj = (struct gl_sync_object *) sync; + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); + + return _mesa_validate_sync(syncObj) ? GL_TRUE : GL_FALSE; +} + + +void GLAPIENTRY +_mesa_DeleteSync(GLsync sync) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_sync_object *const syncObj = (struct gl_sync_object *) sync; + ASSERT_OUTSIDE_BEGIN_END(ctx); + + /* From the GL_ARB_sync spec: + * + * DeleteSync will silently ignore a <sync> value of zero. An + * INVALID_VALUE error is generated if <sync> is neither zero nor the + * name of a sync object. + */ + if (sync == 0) { + return; + } + + if (!_mesa_validate_sync(syncObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glDeleteSync"); + return; + } + + /* If there are no client-waits or server-waits pending on this sync, delete + * the underlying object. + */ + syncObj->DeletePending = GL_TRUE; + _mesa_unref_sync_object(ctx, syncObj); +} + + +GLsync GLAPIENTRY +_mesa_FenceSync(GLenum condition, GLbitfield flags) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_sync_object *syncObj; + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); + + if (condition != GL_SYNC_GPU_COMMANDS_COMPLETE) { + _mesa_error(ctx, GL_INVALID_ENUM, "glFenceSync(condition=0x%x)", + condition); + return 0; + } + + if (flags != 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glFenceSync(flags=0x%x)", + condition); + return 0; + } + + syncObj = ctx->Driver.NewSyncObject(ctx, GL_SYNC_FENCE); + if (syncObj != NULL) { + syncObj->Type = GL_SYNC_FENCE; + /* The name is not currently used, and it is never visible to + * applications. If sync support is extended to provide support for + * NV_fence, this field will be used. We'll also need to add an object + * ID hashtable. + */ + syncObj->Name = 1; + syncObj->RefCount = 1; + syncObj->DeletePending = GL_FALSE; + syncObj->SyncCondition = condition; + syncObj->Flags = flags; + syncObj->StatusFlag = 0; + + ctx->Driver.FenceSync(ctx, syncObj, condition, flags); + + _glthread_LOCK_MUTEX(ctx->Shared->Mutex); + insert_at_tail(& ctx->Shared->SyncObjects, & syncObj->link); + _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); + + return (GLsync) syncObj; + } + + return NULL; +} + + +GLenum GLAPIENTRY +_mesa_ClientWaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_sync_object *const syncObj = (struct gl_sync_object *) sync; + GLenum ret; + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_WAIT_FAILED); + + if (!_mesa_validate_sync(syncObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glClientWaitSync"); + return GL_WAIT_FAILED; + } + + if ((flags & ~GL_SYNC_FLUSH_COMMANDS_BIT) != 0) { + _mesa_error(ctx, GL_INVALID_ENUM, "glClientWaitSync(flags=0x%x)", flags); + return GL_WAIT_FAILED; + } + + _mesa_ref_sync_object(ctx, syncObj); + + /* From the GL_ARB_sync spec: + * + * ClientWaitSync returns one of four status values. A return value of + * ALREADY_SIGNALED indicates that <sync> was signaled at the time + * ClientWaitSync was called. ALREADY_SIGNALED will always be returned + * if <sync> was signaled, even if the value of <timeout> is zero. + */ + ctx->Driver.CheckSync(ctx, syncObj); + if (syncObj->StatusFlag) { + ret = GL_ALREADY_SIGNALED; + } else { + ctx->Driver.ClientWaitSync(ctx, syncObj, flags, timeout); + + ret = syncObj->StatusFlag ? GL_CONDITION_SATISFIED : GL_TIMEOUT_EXPIRED; + } + + _mesa_unref_sync_object(ctx, syncObj); + return ret; +} + + +void GLAPIENTRY +_mesa_WaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_sync_object *const syncObj = (struct gl_sync_object *) sync; + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (!_mesa_validate_sync(syncObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glWaitSync"); + return; + } + + if (flags != 0) { + _mesa_error(ctx, GL_INVALID_ENUM, "glWaitSync(flags=0x%x)", flags); + return; + } + + /* From the GL_ARB_sync spec: + * + * If the value of <timeout> is zero, then WaitSync does nothing. + */ + if (timeout == 0) { + return; + } + + ctx->Driver.ServerWaitSync(ctx, syncObj, flags, timeout); +} + + +void GLAPIENTRY +_mesa_GetSynciv(GLsync sync, GLenum pname, GLsizei bufSize, GLsizei *length, + GLint *values) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_sync_object *const syncObj = (struct gl_sync_object *) sync; + GLsizei size = 0; + GLint v[1]; + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (!_mesa_validate_sync(syncObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetSynciv"); + return; + } + + switch (pname) { + case GL_OBJECT_TYPE: + v[0] = syncObj->Type; + size = 1; + break; + + case GL_SYNC_CONDITION: + v[0] = syncObj->SyncCondition; + size = 1; + break; + + case GL_SYNC_STATUS: + /* Update the state of the sync by dipping into the driver. Note that + * this call won't block. It just updates state in the common object + * data from the current driver state. + */ + ctx->Driver.CheckSync(ctx, syncObj); + + v[0] = (syncObj->StatusFlag) ? GL_SIGNALED : GL_UNSIGNALED; + size = 1; + break; + + case GL_SYNC_FLAGS: + v[0] = syncObj->Flags; + size = 1; + break; + + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetSynciv(pname=0x%x)\n", pname); + return; + } + + if (size > 0) { + const GLsizei copy_count = MIN2(size, bufSize); + + memcpy(values, v, sizeof(GLint) * copy_count); + } + + if (length != NULL) { + *length = size; + } +} + +#endif /* FEATURE_ARB_sync */ |