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_fragprog.c | 3 ++- src/gallium/drivers/nv30/nv30_miptree.c | 33 ++++++++++---------------------- src/gallium/drivers/nv30/nv30_transfer.c | 11 +++-------- 3 files changed, 15 insertions(+), 32 deletions(-) (limited to 'src/gallium/drivers/nv30') diff --git a/src/gallium/drivers/nv30/nv30_fragprog.c b/src/gallium/drivers/nv30/nv30_fragprog.c index 320ba3f4bf..0da392fed3 100644 --- a/src/gallium/drivers/nv30/nv30_fragprog.c +++ b/src/gallium/drivers/nv30/nv30_fragprog.c @@ -834,6 +834,7 @@ nv30_fragprog_validate(struct nv30_context *nv30) struct nv30_fragment_program *fp = nv30->fragprog; struct pipe_buffer *constbuf = nv30->constbuf[PIPE_SHADER_FRAGMENT]; + struct pipe_screen *screen = nv30->pipe.screen; struct pipe_winsys *ws = nv30->pipe.winsys; struct nouveau_stateobj *so; boolean new_consts = FALSE; @@ -849,7 +850,7 @@ nv30_fragprog_validate(struct nv30_context *nv30) return FALSE; } - fp->buffer = ws->buffer_create(ws, 0x100, 0, fp->insn_len * 4); + fp->buffer = screen->buffer_create(screen, 0x100, 0, fp->insn_len * 4); nv30_fragprog_upload(nv30, fp); so = so_new(8, 1); diff --git a/src/gallium/drivers/nv30/nv30_miptree.c b/src/gallium/drivers/nv30/nv30_miptree.c index ec0a8b8438..d6dc621c9e 100644 --- a/src/gallium/drivers/nv30/nv30_miptree.c +++ b/src/gallium/drivers/nv30/nv30_miptree.c @@ -67,7 +67,6 @@ nv30_miptree_layout(struct nv30_miptree *nv30mt) static struct pipe_texture * nv30_miptree_create(struct pipe_screen *pscreen, const struct pipe_texture *pt) { - struct pipe_winsys *ws = pscreen->winsys; struct nv30_miptree *mt; unsigned buf_usage = PIPE_BUFFER_USAGE_PIXEL | NOUVEAU_BUFFER_USAGE_TEXTURE; @@ -76,7 +75,7 @@ nv30_miptree_create(struct pipe_screen *pscreen, 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 = pscreen; /* Swizzled textures must be POT */ @@ -112,7 +111,7 @@ nv30_miptree_create(struct pipe_screen *pscreen, const struct pipe_texture *pt) nv30_miptree_layout(mt); - mt->buffer = ws->buffer_create(ws, 256, buf_usage, + mt->buffer = pscreen->buffer_create(pscreen, 256, buf_usage, mt->total_size); if (!mt->buffer) { FREE(mt); @@ -138,27 +137,22 @@ nv30_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 -nv30_miptree_release(struct pipe_screen *pscreen, struct pipe_texture **ppt) +nv30_miptree_destroy(struct pipe_texture *pt) { - struct pipe_texture *pt = *ppt; struct nv30_miptree *mt = (struct nv30_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); @@ -184,7 +178,7 @@ nv30_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; @@ -203,15 +197,8 @@ nv30_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_texture *pt, } static void -nv30_miptree_surface_del(struct pipe_screen *pscreen, - struct pipe_surface **psurface) +nv30_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); } @@ -221,7 +208,7 @@ nv30_screen_init_miptree_functions(struct pipe_screen *pscreen) { pscreen->texture_create = nv30_miptree_create; pscreen->texture_blanket = nv30_miptree_blanket; - pscreen->texture_release = nv30_miptree_release; + pscreen->texture_destroy = nv30_miptree_destroy; pscreen->get_tex_surface = nv30_miptree_surface_new; - pscreen->tex_surface_release = nv30_miptree_surface_del; + pscreen->tex_surface_destroy = nv30_miptree_surface_del; } 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