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/nv20/nv20_miptree.c | 46 +++++++++++-------------------- src/gallium/drivers/nv20/nv20_prim_vbuf.c | 6 ++-- src/gallium/drivers/nv20/nv20_transfer.c | 11 ++------ 3 files changed, 22 insertions(+), 41 deletions(-) (limited to 'src/gallium/drivers/nv20') diff --git a/src/gallium/drivers/nv20/nv20_miptree.c b/src/gallium/drivers/nv20/nv20_miptree.c index 2946240897..b2f29aff8d 100644 --- a/src/gallium/drivers/nv20/nv20_miptree.c +++ b/src/gallium/drivers/nv20/nv20_miptree.c @@ -76,19 +76,18 @@ nv20_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 struct pipe_texture * nv20_miptree_create(struct pipe_screen *screen, const struct pipe_texture *pt) { - struct pipe_winsys *ws = screen->winsys; struct nv20_miptree *mt; unsigned buf_usage = PIPE_BUFFER_USAGE_PIXEL | NOUVEAU_BUFFER_USAGE_TEXTURE; @@ -97,7 +96,7 @@ nv20_miptree_create(struct pipe_screen *screen, const struct pipe_texture *pt) if (!mt) return NULL; mt->base = *pt; - mt->base.refcount = 1; + pipe_reference_init(&mt->base.reference, 1); mt->base.screen = screen; /* Swizzled textures must be POT */ @@ -133,7 +132,7 @@ nv20_miptree_create(struct pipe_screen *screen, const struct pipe_texture *pt) nv20_miptree_layout(mt); - mt->buffer = ws->buffer_create(ws, 256, buf_usage, mt->total_size); + mt->buffer = screen->buffer_create(screen, 256, buf_usage, mt->total_size); if (!mt->buffer) { FREE(mt); return NULL; @@ -143,22 +142,16 @@ nv20_miptree_create(struct pipe_screen *screen, const struct pipe_texture *pt) } static void -nv20_miptree_release(struct pipe_screen *screen, struct pipe_texture **pt) +nv20_miptree_destroy(struct pipe_texture *pt) { - struct pipe_texture *mt = *pt; - - *pt = NULL; - if (--mt->refcount <= 0) { - struct nv20_miptree *nv20mt = (struct nv20_miptree *)mt; - int l; + struct nv20_miptree *nv20mt = (struct nv20_miptree *)pt; + int l; - pipe_buffer_reference(screen, &nv20mt->buffer, NULL); - for (l = 0; l <= mt->last_level; l++) { - if (nv20mt->level[l].image_offset) - FREE(nv20mt->level[l].image_offset); - } - FREE(nv20mt); - } + pipe_buffer_reference(&nv20mt->buffer, NULL); + for (l = 0; l <= pt->last_level; l++) { + if (nv20mt->level[l].image_offset) + FREE(nv20mt->level[l].image_offset); + } } static struct pipe_surface * @@ -178,7 +171,7 @@ nv20_miptree_surface_get(struct pipe_screen *screen, 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; @@ -197,15 +190,8 @@ nv20_miptree_surface_get(struct pipe_screen *screen, struct pipe_texture *pt, } static void -nv20_miptree_surface_release(struct pipe_screen *pscreen, - struct pipe_surface **psurface) +nv20_miptree_surface_destroy(struct pipe_surface *ps) { - struct pipe_surface *ps = *psurface; - - *psurface = NULL; - if (--ps->refcount > 0) - return; - pipe_texture_reference(&ps->texture, NULL); FREE(ps); } @@ -214,8 +200,8 @@ void nv20_screen_init_miptree_functions(struct pipe_screen *pscreen) { pscreen->texture_create = nv20_miptree_create; pscreen->texture_blanket = nv20_miptree_blanket; - pscreen->texture_release = nv20_miptree_release; + pscreen->texture_destroy = nv20_miptree_destroy; pscreen->get_tex_surface = nv20_miptree_surface_get; - pscreen->tex_surface_release = nv20_miptree_surface_release; + pscreen->tex_surface_destroy = nv20_miptree_surface_destroy; } diff --git a/src/gallium/drivers/nv20/nv20_prim_vbuf.c b/src/gallium/drivers/nv20/nv20_prim_vbuf.c index 319e1f6557..8aa342cd2d 100644 --- a/src/gallium/drivers/nv20/nv20_prim_vbuf.c +++ b/src/gallium/drivers/nv20/nv20_prim_vbuf.c @@ -112,8 +112,8 @@ nv20__allocate_mbuffer(struct nv20_vbuf_render *nv20_render, size_t size) static void nv20__allocate_pbuffer(struct nv20_vbuf_render *nv20_render, size_t size) { - struct pipe_winsys *winsys = nv20_render->nv20->pipe.winsys; - nv20_render->pbuffer = winsys->buffer_create(winsys, 64, + struct pipe_screen *screen = nv20_render->nv20->pipe.screen; + nv20_render->pbuffer = screen->buffer_create(screen, 64, PIPE_BUFFER_USAGE_VERTEX, size); } @@ -361,7 +361,7 @@ nv20_vbuf_render_release_vertices( struct vbuf_render *render ) struct pipe_screen *pscreen = &nv20->screen->pipe; if (nv20_render->pbuffer) { - pipe_buffer_reference(pscreen, &nv20_render->pbuffer, NULL); + pipe_buffer_reference(&nv20_render->pbuffer, NULL); } else if (nv20_render->mbuffer) { FREE(nv20_render->mbuffer); nv20_render->mbuffer = NULL; diff --git a/src/gallium/drivers/nv20/nv20_transfer.c b/src/gallium/drivers/nv20/nv20_transfer.c index 1631637067..e5255296aa 100644 --- a/src/gallium/drivers/nv20/nv20_transfer.c +++ b/src/gallium/drivers/nv20/nv20_transfer.c @@ -64,7 +64,6 @@ nv20_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 @@ nv20_transfer_new(struct pipe_screen *pscreen, struct pipe_texture *pt, } static void -nv20_transfer_del(struct pipe_screen *pscreen, struct pipe_transfer **pptx) +nv20_transfer_del(struct pipe_transfer *ptx) { - struct pipe_transfer *ptx = *pptx; struct nv20_transfer *tx = (struct nv20_transfer *)ptx; if (!tx->direct && ptx->usage != PIPE_TRANSFER_READ) { + struct pipe_screen *pscreen = ptx->texture->screen; struct nv20_screen *nvscreen = nv20_screen(pscreen); struct pipe_surface *dst; @@ -160,10 +159,6 @@ nv20_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 nv20_screen_init_transfer_functions(struct pipe_screen *pscreen) { pscreen->get_tex_transfer = nv20_transfer_new; - pscreen->tex_transfer_release = nv20_transfer_del; + pscreen->tex_transfer_destroy = nv20_transfer_del; pscreen->transfer_map = nv20_transfer_map; pscreen->transfer_unmap = nv20_transfer_unmap; } -- cgit v1.2.3