static void etna_pipe_transfer_unmap(struct pipe_context *pipe,
struct pipe_transfer *transfer_)
{
struct etna_pipe_context *priv = etna_pipe_context(pipe);
struct etna_transfer *ptrans = etna_transfer(transfer_);
/* XXX
* When writing to a resource that is already in use, replace the resource with a completely new buffer
* and free the old one using a fenced free.
* The most tricky case to implement will be: tiled or supertiled surface, partial write, target not aligned to 4/64
*/
struct etna_resource *resource = etna_resource(ptrans->base.resource);
assert(ptrans->base.level <= resource->base.last_level);
if(ptrans->base.usage & PIPE_TRANSFER_WRITE)
{
/* write back */
if(unlikely(!ptrans->in_place))
{
/* map buffer object */
struct etna_resource_level *res_level = &resource->levels[ptrans->base.level];
void *mapped = etna_bo_map(resource->bo) + res_level->offset;
if(resource->layout == ETNA_LAYOUT_LINEAR || resource->layout == ETNA_LAYOUT_TILED)
{
if(resource->layout == ETNA_LAYOUT_TILED && !util_format_is_compressed(resource->base.format))
{
etna_texture_tile(mapped + ptrans->base.box.z * res_level->layer_stride, ptrans->buffer,
ptrans->base.box.x, ptrans->base.box.y, res_level->stride,
ptrans->base.box.width, ptrans->base.box.height, ptrans->base.stride,
util_format_get_blocksize(resource->base.format));
} else { /* non-tiled or compressed format */
util_copy_box(mapped,
resource->base.format,
res_level->stride, res_level->layer_stride,
ptrans->base.box.x, ptrans->base.box.y, ptrans->base.box.z,
ptrans->base.box.width, ptrans->base.box.height, ptrans->base.box.depth,
ptrans->buffer,
ptrans->base.stride, ptrans->base.layer_stride,
0, 0, 0 /* src x,y,z */);
}
} else
{
BUG("unsupported tiling %i", resource->layout);
}
FREE(ptrans->buffer);
}
if(resource->base.bind & PIPE_BIND_SAMPLER_VIEW)
{
/* XXX do we need to flush the CPU cache too or start a write barrier
* to make sure the GPU sees it? */
priv->dirty_bits |= ETNA_STATE_TEXTURE_CACHES;
}
}
util_slab_free(&priv->transfer_pool, ptrans);
}
static void
etna_transfer_unmap(struct pipe_context *pctx, struct pipe_transfer *ptrans)
{
struct etna_context *ctx = etna_context(pctx);
struct etna_transfer *trans = etna_transfer(ptrans);
struct etna_resource *rsc = etna_resource(ptrans->resource);
/* XXX
* When writing to a resource that is already in use, replace the resource
* with a completely new buffer
* and free the old one using a fenced free.
* The most tricky case to implement will be: tiled or supertiled surface,
* partial write, target not aligned to 4/64. */
assert(ptrans->level <= rsc->base.last_level);
if (rsc->texture && !etna_resource_newer(rsc, etna_resource(rsc->texture)))
rsc = etna_resource(rsc->texture); /* switch to using the texture resource */
/*
* Temporary resources are always pulled into the CPU domain, must push them
* back into GPU domain before the RS execs the blit to the base resource.
*/
if (trans->rsc)
etna_bo_cpu_fini(etna_resource(trans->rsc)->bo);
if (ptrans->usage & PIPE_TRANSFER_WRITE) {
if (trans->rsc) {
/* We have a temporary resource due to either tile status or
* tiling format. Write back the updated buffer contents.
* FIXME: we need to invalidate the tile status. */
etna_copy_resource_box(pctx, ptrans->resource, trans->rsc, ptrans->level, &ptrans->box);
} else if (trans->staging) {
/* map buffer object */
struct etna_resource_level *res_level = &rsc->levels[ptrans->level];
void *mapped = etna_bo_map(rsc->bo) + res_level->offset;
if (rsc->layout == ETNA_LAYOUT_TILED) {
etna_texture_tile(
mapped + ptrans->box.z * res_level->layer_stride,
trans->staging, ptrans->box.x, ptrans->box.y,
res_level->stride, ptrans->box.width, ptrans->box.height,
ptrans->stride, util_format_get_blocksize(rsc->base.format));
} else if (rsc->layout == ETNA_LAYOUT_LINEAR) {
util_copy_box(mapped, rsc->base.format, res_level->stride,
res_level->layer_stride, ptrans->box.x,
ptrans->box.y, ptrans->box.z, ptrans->box.width,
ptrans->box.height, ptrans->box.depth,
trans->staging, ptrans->stride,
ptrans->layer_stride, 0, 0, 0 /* src x,y,z */);
} else {
BUG("unsupported tiling %i", rsc->layout);
}
FREE(trans->staging);
}
rsc->seqno++;
if (rsc->base.bind & PIPE_BIND_SAMPLER_VIEW) {
ctx->dirty |= ETNA_DIRTY_TEXTURE_CACHES;
}
}
/*
* Transfers without a temporary are only pulled into the CPU domain if they
* are not mapped unsynchronized. If they are, must push them back into GPU
* domain after CPU access is finished.
*/
if (!trans->rsc && !(ptrans->usage & PIPE_TRANSFER_UNSYNCHRONIZED))
etna_bo_cpu_fini(rsc->bo);
pipe_resource_reference(&trans->rsc, NULL);
pipe_resource_reference(&ptrans->resource, NULL);
slab_free(&ctx->transfer_pool, trans);
}