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/nv04/nv04_miptree.c | 33 ++++++++++----------------------- 1 file changed, 10 insertions(+), 23 deletions(-) (limited to 'src/gallium/drivers/nv04/nv04_miptree.c') diff --git a/src/gallium/drivers/nv04/nv04_miptree.c b/src/gallium/drivers/nv04/nv04_miptree.c index 9acd613e2e..85dc017fbc 100644 --- a/src/gallium/drivers/nv04/nv04_miptree.c +++ b/src/gallium/drivers/nv04/nv04_miptree.c @@ -41,21 +41,20 @@ nv04_miptree_layout(struct nv04_miptree *nv04mt) static struct pipe_texture * nv04_miptree_create(struct pipe_screen *pscreen, const struct pipe_texture *pt) { - struct pipe_winsys *ws = pscreen->winsys; struct nv04_miptree *mt; mt = MALLOC(sizeof(struct nv04_miptree)); if (!mt) return NULL; mt->base = *pt; - mt->base.refcount = 1; + pipe_reference_init(&mt->base.reference, 1); mt->base.screen = pscreen; //mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; nv04_miptree_layout(mt); - mt->buffer = ws->buffer_create(ws, 256, PIPE_BUFFER_USAGE_PIXEL | + mt->buffer = pscreen->buffer_create(pscreen, 256, PIPE_BUFFER_USAGE_PIXEL | NOUVEAU_BUFFER_USAGE_TEXTURE, mt->total_size); if (!mt->buffer) { @@ -83,27 +82,22 @@ nv04_miptree_blanket(struct pipe_screen *pscreen, const struct pipe_texture *pt, return NULL; mt->base = *pt; - mt->base.refcount = 1; + pipe_reference_init(&mt->base.reference, 1); mt->base.screen = pscreen; mt->level[0].pitch = stride[0]; mt->level[0].image_offset = CALLOC(1, sizeof(unsigned)); - pipe_buffer_reference(pscreen, &mt->buffer, pb); + pipe_buffer_reference(&mt->buffer, pb); return &mt->base; } static void -nv04_miptree_release(struct pipe_screen *pscreen, struct pipe_texture **ppt) +nv04_miptree_destroy(struct pipe_texture *pt) { - struct pipe_texture *pt = *ppt; struct nv04_miptree *mt = (struct nv04_miptree *)pt; int l; - *ppt = NULL; - if (--pt->refcount) - return; - - pipe_buffer_reference(pscreen, &mt->buffer, NULL); + pipe_buffer_reference(&mt->buffer, NULL); for (l = 0; l <= pt->last_level; l++) { if (mt->level[l].image_offset) FREE(mt->level[l].image_offset); @@ -129,7 +123,7 @@ nv04_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_texture *pt, ns->base.height = pt->height[level]; ns->base.usage = flags; ns->base.status = PIPE_SURFACE_STATUS_DEFINED; - ns->base.refcount = 1; + pipe_reference_init(&ns->base.reference, 1); ns->base.face = face; ns->base.level = level; ns->base.zslice = zslice; @@ -141,15 +135,8 @@ nv04_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_texture *pt, } static void -nv04_miptree_surface_del(struct pipe_screen *pscreen, - struct pipe_surface **psurface) +nv04_miptree_surface_del(struct pipe_surface *ps) { - struct pipe_surface *ps = *psurface; - - *psurface = NULL; - if (--ps->refcount > 0) - return; - pipe_texture_reference(&ps->texture, NULL); FREE(ps); } @@ -159,8 +146,8 @@ nv04_screen_init_miptree_functions(struct pipe_screen *pscreen) { pscreen->texture_create = nv04_miptree_create; pscreen->texture_blanket = nv04_miptree_blanket; - pscreen->texture_release = nv04_miptree_release; + pscreen->texture_destroy = nv04_miptree_destroy; pscreen->get_tex_surface = nv04_miptree_surface_new; - pscreen->tex_surface_release = nv04_miptree_surface_del; + pscreen->tex_surface_destroy = nv04_miptree_surface_del; } -- cgit v1.2.3