From 29b86f9852b2b7ecc31cdfee56679537e40bc6e2 Mon Sep 17 00:00:00 2001 From: marha Date: Mon, 12 Apr 2010 09:53:17 +0000 Subject: svn merge -r524:HEAD "^/branches/released" . --- mesalib/src/mesa/main/shared.c | 43 ++++++++++++++++++++++++++++++++---------- 1 file changed, 33 insertions(+), 10 deletions(-) (limited to 'mesalib/src/mesa/main/shared.c') diff --git a/mesalib/src/mesa/main/shared.c b/mesalib/src/mesa/main/shared.c index 4d01e8abc..e364e2404 100644 --- a/mesalib/src/mesa/main/shared.c +++ b/mesalib/src/mesa/main/shared.c @@ -93,12 +93,8 @@ _mesa_alloc_shared_state(GLcontext *ctx) shared->BufferObjects = _mesa_NewHashTable(); #endif - /* Allocate the default buffer object and set refcount so high that - * it never gets deleted. - * XXX with recent/improved refcounting this may not longer be needed. - */ + /* Allocate the default buffer object */ shared->NullBufferObj = ctx->Driver.NewBufferObject(ctx, 0, 0); - shared->NullBufferObj->RefCount = 1000 * 1000 * 1000; /* Create default texture objects */ for (i = 0; i < NUM_TEXTURE_TARGETS; i++) { @@ -202,7 +198,7 @@ delete_bufferobj_cb(GLuint id, void *data, void *userData) ctx->Driver.UnmapBuffer(ctx, 0, bufObj); bufObj->Pointer = NULL; } - ctx->Driver.DeleteBuffer(ctx, bufObj); + _mesa_reference_buffer_object(ctx, &bufObj, NULL); } @@ -288,8 +284,8 @@ delete_renderbuffer_cb(GLuint id, void *data, void *userData) * * \sa alloc_shared_state(). */ -void -_mesa_free_shared_state(GLcontext *ctx, struct gl_shared_state *shared) +static void +free_shared_state(GLcontext *ctx, struct gl_shared_state *shared) { GLuint i; @@ -335,7 +331,7 @@ _mesa_free_shared_state(GLcontext *ctx, struct gl_shared_state *shared) #endif #if FEATURE_ARB_vertex_buffer_object - ctx->Driver.DeleteBuffer(ctx, shared->NullBufferObj); + _mesa_reference_buffer_object(ctx, &shared->NullBufferObj, NULL); #endif #if FEATURE_ARB_sync @@ -366,5 +362,32 @@ _mesa_free_shared_state(GLcontext *ctx, struct gl_shared_state *shared) _glthread_DESTROY_MUTEX(shared->Mutex); _glthread_DESTROY_MUTEX(shared->TexMutex); - _mesa_free(shared); + free(shared); +} + + +/** + * Decrement shared state object reference count and potentially free it + * and all children structures. + * + * \param ctx GL context. + * \param shared shared state pointer. + * + * \sa free_shared_state(). + */ +void +_mesa_release_shared_state(GLcontext *ctx, struct gl_shared_state *shared) +{ + GLint RefCount; + + _glthread_LOCK_MUTEX(shared->Mutex); + RefCount = --shared->RefCount; + _glthread_UNLOCK_MUTEX(shared->Mutex); + + assert(RefCount >= 0); + + if (RefCount == 0) { + /* free shared state */ + free_shared_state( ctx, shared ); + } } -- cgit v1.2.3