From 5e27cd46c04a9e7b5904cc014bffd0f4daae31fe Mon Sep 17 00:00:00 2001 From: Michel Dänzer Date: Wed, 4 Mar 2009 11:58:48 +0100 Subject: gallium: Unify reference counting. The core reference counting code is centralized in p_refcnt.h. This has some consequences related to struct pipe_buffer: * The screen member of struct pipe_buffer must be initialized, or pipe_buffer_reference() will crash trying to destroy a buffer with reference count 0. u_simple_screen takes care of this, but I may have missed some of the drivers not using it. * Except for rare exceptions deep in winsys code, buffers must always be allocated via pipe_buffer_create() or via screen->*buffer_create() rather than via winsys->*buffer_create(). --- src/gallium/drivers/nv30/nv30_transfer.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) (limited to 'src/gallium/drivers/nv30/nv30_transfer.c') diff --git a/src/gallium/drivers/nv30/nv30_transfer.c b/src/gallium/drivers/nv30/nv30_transfer.c index 6367374a61..8b915b35bd 100644 --- a/src/gallium/drivers/nv30/nv30_transfer.c +++ b/src/gallium/drivers/nv30/nv30_transfer.c @@ -64,7 +64,6 @@ nv30_transfer_new(struct pipe_screen *pscreen, struct pipe_texture *pt, if (!tx) return NULL; - tx->base.refcount = 1; pipe_texture_reference(&tx->base.texture, pt); tx->base.format = pt->format; tx->base.x = x; @@ -138,12 +137,12 @@ nv30_transfer_new(struct pipe_screen *pscreen, struct pipe_texture *pt, } static void -nv30_transfer_del(struct pipe_screen *pscreen, struct pipe_transfer **pptx) +nv30_transfer_del(struct pipe_transfer *ptx) { - struct pipe_transfer *ptx = *pptx; struct nv30_transfer *tx = (struct nv30_transfer *)ptx; if (!tx->direct && ptx->usage != PIPE_TRANSFER_READ) { + struct pipe_screen *pscreen = ptx->texture->screen; struct nv30_screen *nvscreen = nv30_screen(pscreen); struct pipe_surface *dst; @@ -160,10 +159,6 @@ nv30_transfer_del(struct pipe_screen *pscreen, struct pipe_transfer **pptx) pipe_surface_reference(&dst, NULL); } - *pptx = NULL; - if (--ptx->refcount) - return; - pipe_surface_reference(&tx->surface, NULL); pipe_texture_reference(&ptx->texture, NULL); FREE(ptx); @@ -195,7 +190,7 @@ void nv30_screen_init_transfer_functions(struct pipe_screen *pscreen) { pscreen->get_tex_transfer = nv30_transfer_new; - pscreen->tex_transfer_release = nv30_transfer_del; + pscreen->tex_transfer_destroy = nv30_transfer_del; pscreen->transfer_map = nv30_transfer_map; pscreen->transfer_unmap = nv30_transfer_unmap; } -- cgit v1.2.3