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/i915simple/i915_prim_vbuf.c | 2 +- src/gallium/drivers/i915simple/i915_screen.c | 16 ++---- src/gallium/drivers/i915simple/i915_texture.c | 72 +++++++++---------------- 3 files changed, 31 insertions(+), 59 deletions(-) (limited to 'src/gallium/drivers/i915simple') diff --git a/src/gallium/drivers/i915simple/i915_prim_vbuf.c b/src/gallium/drivers/i915simple/i915_prim_vbuf.c index 58c41840e1..9bdd91f288 100644 --- a/src/gallium/drivers/i915simple/i915_prim_vbuf.c +++ b/src/gallium/drivers/i915simple/i915_prim_vbuf.c @@ -126,7 +126,7 @@ i915_vbuf_render_allocate_vertices( struct vbuf_render *render, } else { i915->vbo_flushed = 0; if (i915_render->vbo) - pipe_buffer_reference(screen, &i915_render->vbo, NULL); + pipe_buffer_reference(&i915_render->vbo, NULL); } if (!i915_render->vbo) { diff --git a/src/gallium/drivers/i915simple/i915_screen.c b/src/gallium/drivers/i915simple/i915_screen.c index 49471287a2..f4aa8e60d8 100644 --- a/src/gallium/drivers/i915simple/i915_screen.c +++ b/src/gallium/drivers/i915simple/i915_screen.c @@ -230,7 +230,6 @@ i915_get_tex_transfer(struct pipe_screen *screen, trans = CALLOC_STRUCT(i915_transfer); if (trans) { - trans->base.refcount = 1; pipe_texture_reference(&trans->base.texture, texture); trans->base.format = trans->base.format; trans->base.width = w; @@ -246,17 +245,10 @@ i915_get_tex_transfer(struct pipe_screen *screen, } static void -i915_tex_transfer_release(struct pipe_screen *screen, - struct pipe_transfer **transfer) +i915_tex_transfer_destroy(struct pipe_transfer *trans) { - struct pipe_transfer *trans = *transfer; - - if (--trans->refcount == 0) { - pipe_texture_reference(&trans->texture, NULL); - FREE(trans); - } - - *transfer = NULL; + pipe_texture_reference(&trans->texture, NULL); + FREE(trans); } static void * @@ -344,7 +336,7 @@ i915_create_screen(struct pipe_winsys *winsys, uint pci_id) i915screen->screen.get_paramf = i915_get_paramf; i915screen->screen.is_format_supported = i915_is_format_supported; i915screen->screen.get_tex_transfer = i915_get_tex_transfer; - i915screen->screen.tex_transfer_release = i915_tex_transfer_release; + i915screen->screen.tex_transfer_destroy = i915_tex_transfer_destroy; i915screen->screen.transfer_map = i915_transfer_map; i915screen->screen.transfer_unmap = i915_transfer_unmap; diff --git a/src/gallium/drivers/i915simple/i915_texture.c b/src/gallium/drivers/i915simple/i915_texture.c index 6aead3e75e..39aca9f817 100644 --- a/src/gallium/drivers/i915simple/i915_texture.c +++ b/src/gallium/drivers/i915simple/i915_texture.c @@ -582,7 +582,6 @@ i915_texture_create(struct pipe_screen *screen, const struct pipe_texture *templat) { struct i915_screen *i915screen = i915_screen(screen); - struct pipe_winsys *ws = screen->winsys; struct i915_texture *tex = CALLOC_STRUCT(i915_texture); size_t tex_size; @@ -590,7 +589,7 @@ i915_texture_create(struct pipe_screen *screen, return NULL; tex->base = *templat; - tex->base.refcount = 1; + pipe_reference_init(&tex->base.reference, 1); tex->base.screen = screen; tex->base.nblocksx[0] = pf_get_nblocksx(&tex->base.block, tex->base.width[0]); @@ -606,7 +605,7 @@ i915_texture_create(struct pipe_screen *screen, tex_size = tex->stride * tex->total_nblocksy; - tex->buffer = ws->buffer_create(ws, 64, + tex->buffer = screen->buffer_create(screen, 64, PIPE_BUFFER_USAGE_PIXEL, tex_size); @@ -629,33 +628,22 @@ fail: static void -i915_texture_release(struct pipe_screen *screen, - struct pipe_texture **pt) +i915_texture_destroy(struct pipe_texture *pt) { - if (!*pt) - return; + struct i915_texture *tex = (struct i915_texture *)pt; + uint i; /* - DBG("%s %p refcount will be %d\n", - __FUNCTION__, (void *) *pt, (*pt)->refcount - 1); + DBG("%s deleting %p\n", __FUNCTION__, (void *) tex); */ - if (--(*pt)->refcount <= 0) { - struct i915_texture *tex = (struct i915_texture *)*pt; - uint i; - - /* - DBG("%s deleting %p\n", __FUNCTION__, (void *) tex); - */ - pipe_buffer_reference(screen, &tex->buffer, NULL); + pipe_buffer_reference(&tex->buffer, NULL); - for (i = 0; i < PIPE_MAX_TEXTURE_LEVELS; i++) - if (tex->image_offset[i]) - FREE(tex->image_offset[i]); + for (i = 0; i < PIPE_MAX_TEXTURE_LEVELS; i++) + if (tex->image_offset[i]) + FREE(tex->image_offset[i]); - FREE(tex); - } - *pt = NULL; + FREE(tex); } static struct pipe_surface * @@ -682,7 +670,7 @@ i915_get_tex_surface(struct pipe_screen *screen, ps = CALLOC_STRUCT(pipe_surface); if (ps) { - ps->refcount = 1; + pipe_reference_init(&ps->reference, 1); pipe_texture_reference(&ps->texture, pt); ps->format = pt->format; ps->width = pt->width[level]; @@ -715,7 +703,7 @@ i915_texture_blanket(struct pipe_screen * screen, return NULL; tex->base = *base; - tex->base.refcount = 1; + pipe_reference_init(&tex->base.reference, 1); tex->base.screen = screen; tex->stride = stride[0]; @@ -723,7 +711,7 @@ i915_texture_blanket(struct pipe_screen * screen, i915_miptree_set_level_info(tex, 0, 1, base->width[0], base->height[0], 1); i915_miptree_set_image_offset(tex, 0, 0, 0, 0); - pipe_buffer_reference(screen, &tex->buffer, buffer); + pipe_buffer_reference(&tex->buffer, buffer); return &tex->base; } @@ -735,36 +723,28 @@ i915_init_texture_functions(struct i915_context *i915) } static void -i915_tex_surface_release(struct pipe_screen *screen, - struct pipe_surface **surface) +i915_tex_surface_destroy(struct pipe_surface *surf) { - struct pipe_surface *surf = *surface; - - if (--surf->refcount == 0) { - - /* This really should not be possible, but it's actually - * happening quite a bit... Will fix. - */ - if (surf->status == PIPE_SURFACE_STATUS_CLEAR) { - debug_printf("XXX destroying a surface with pending clears...\n"); - assert(0); - } - - pipe_texture_reference(&surf->texture, NULL); - FREE(surf); + /* This really should not be possible, but it's actually + * happening quite a bit... Will fix. + */ + if (surf->status == PIPE_SURFACE_STATUS_CLEAR) { + debug_printf("XXX destroying a surface with pending clears...\n"); + assert(0); } - *surface = NULL; + pipe_texture_reference(&surf->texture, NULL); + FREE(surf); } void i915_init_screen_texture_functions(struct pipe_screen *screen) { screen->texture_create = i915_texture_create; - screen->texture_release = i915_texture_release; + screen->texture_destroy = i915_texture_destroy; screen->get_tex_surface = i915_get_tex_surface; screen->texture_blanket = i915_texture_blanket; - screen->tex_surface_release = i915_tex_surface_release; + screen->tex_surface_destroy = i915_tex_surface_destroy; } boolean i915_get_texture_buffer( struct pipe_texture *texture, @@ -776,7 +756,7 @@ boolean i915_get_texture_buffer( struct pipe_texture *texture, if (!tex) return FALSE; - pipe_buffer_reference(texture->screen, buf, tex->buffer); + pipe_buffer_reference(buf, tex->buffer); if (stride) *stride = tex->stride; -- cgit v1.2.3