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);
}
static void
wait_sync(struct gl_context *ctx, struct gl_sync_object *syncObj,
GLbitfield flags, GLuint64 timeout)
{
ctx->Driver.ServerWaitSync(ctx, syncObj, flags, timeout);
_mesa_unref_sync_object(ctx, syncObj, 1);
}
static GLenum
client_wait_sync(struct gl_context *ctx, struct gl_sync_object *syncObj,
GLbitfield flags, GLuint64 timeout)
{
GLenum ret;
/* 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 {
if (timeout == 0) {
ret = GL_TIMEOUT_EXPIRED;
} else {
ctx->Driver.ClientWaitSync(ctx, syncObj, flags, timeout);
ret = syncObj->StatusFlag
? GL_CONDITION_SATISFIED : GL_TIMEOUT_EXPIRED;
}
}
_mesa_unref_sync_object(ctx, syncObj, 1);
return ret;
}
static ALWAYS_INLINE void
delete_sync(struct gl_context *ctx, GLsync sync, bool no_error)
{
struct gl_sync_object *syncObj;
/* 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;
}
syncObj = _mesa_get_and_ref_sync(ctx, sync, true);
if (!no_error && !syncObj) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glDeleteSync (not a valid sync object)");
return;
}
/* If there are no client-waits or server-waits pending on this sync, delete
* the underlying object. Note that we double-unref the object, as
* _mesa_get_and_ref_sync above took an extra refcount to make sure the
* pointer is valid for us to manipulate.
*/
syncObj->DeletePending = GL_TRUE;
_mesa_unref_sync_object(ctx, syncObj, 2);
}
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 {
if (timeout == 0) {
ret = GL_TIMEOUT_EXPIRED;
} 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_GetSynciv(GLsync sync, GLenum pname, GLsizei bufSize, GLsizei *length,
GLint *values)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_sync_object *syncObj;
GLsizei size = 0;
GLint v[1];
syncObj = _mesa_get_and_ref_sync(ctx, sync, true);
if (!syncObj) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glGetSynciv (not a valid sync object)");
return;
}
switch (pname) {
case GL_OBJECT_TYPE:
v[0] = GL_SYNC_FENCE;
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);
_mesa_unref_sync_object(ctx, syncObj, 1);
return;
}
/* Section 4.1.3 (Sync Object Queries) of the OpenGL ES 3.10 spec says:
*
* "An INVALID_VALUE error is generated if bufSize is negative."
*/
if (bufSize < 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glGetSynciv(pname=0x%x)\n", pname);
}
if (size > 0 && bufSize > 0) {
const GLsizei copy_count = MIN2(size, bufSize);
memcpy(values, v, sizeof(GLint) * copy_count);
}
if (length != NULL) {
*length = size;
}
_mesa_unref_sync_object(ctx, syncObj, 1);
}
