diff options
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_miptree.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/src/gallium/drivers/nv50/nv50_miptree.c b/src/gallium/drivers/nv50/nv50_miptree.c index f25922784e..63a23d06b8 100644 --- a/src/gallium/drivers/nv50/nv50_miptree.c +++ b/src/gallium/drivers/nv50/nv50_miptree.c @@ -178,6 +178,38 @@ nv50_miptree_sync(struct pipe_screen *pscreen, struct nv50_miptree *mt, pscreen->tex_surface_release(pscreen, &src); } +/* The reverse of the above */ +void +nv50_miptree_sync_cpu(struct pipe_screen *pscreen, struct nv50_miptree *mt, + unsigned level, unsigned image) +{ + struct nouveau_winsys *nvws = nv50_screen(pscreen)->nvws; + struct nv50_miptree_level *lvl = &mt->level[level]; + struct pipe_surface *dst, *src; + unsigned face = 0, zslice = 0; + + if (!is_dirty(lvl->image_dirty_gpu, image)) + return; + + if (mt->base.target == PIPE_TEXTURE_CUBE) + face = image; + else + if (mt->base.target == PIPE_TEXTURE_3D) + zslice = image; + + mark_clean(lvl->image_dirty_gpu, image); + + src = pscreen->get_tex_surface(pscreen, &mt->base, face, level, zslice, + PIPE_BUFFER_USAGE_GPU_READ); + dst = pscreen->get_tex_surface(pscreen, &mt->base, face, level, zslice, + PIPE_BUFFER_USAGE_CPU_READ); + + nvws->surface_copy(nvws, dst, 0, 0, src, 0, 0, dst->width, dst->height); + + pscreen->tex_surface_release(pscreen, &dst); + pscreen->tex_surface_release(pscreen, &src); +} + static struct pipe_surface * nv50_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_texture *pt, unsigned face, unsigned level, unsigned zslice, @@ -216,7 +248,7 @@ nv50_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_texture *pt, if (flags & PIPE_BUFFER_USAGE_CPU_READ_WRITE) { assert(!(flags & PIPE_BUFFER_USAGE_GPU_READ_WRITE)); - assert(!is_dirty(lvl->image_dirty_gpu, img)); + nv50_miptree_sync_cpu(pscreen, mt, level, img); ps->offset = 0; pipe_texture_reference(&ps->texture, pt); |