| 0,0 → 1,132 |
|---|
| /************************************************************************** |
| * |
| * Copyright 2010 Luca Barbieri |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sublicense, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial |
| * portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE |
| * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| **************************************************************************/ |
| |
| #include "util/u_staging.h" |
| #include "pipe/p_context.h" |
| #include "util/u_memory.h" |
| #include "util/u_inlines.h" |
| |
| static void |
| util_staging_resource_template(struct pipe_resource *pt, unsigned width, unsigned height, unsigned depth, struct pipe_resource *template) |
| { |
| memset(template, 0, sizeof(struct pipe_resource)); |
| if(pt->target != PIPE_BUFFER && depth <= 1) |
| template->target = PIPE_TEXTURE_RECT; |
| else |
| template->target = pt->target; |
| template->format = pt->format; |
| template->width0 = width; |
| template->height0 = height; |
| template->depth0 = depth; |
| template->array_size = 1; |
| template->last_level = 0; |
| template->nr_samples = pt->nr_samples; |
| template->bind = 0; |
| template->usage = PIPE_USAGE_STAGING; |
| template->flags = 0; |
| } |
| |
| struct util_staging_transfer * |
| util_staging_transfer_init(struct pipe_context *pipe, |
| struct pipe_resource *pt, |
| unsigned level, |
| unsigned usage, |
| const struct pipe_box *box, |
| boolean direct, struct util_staging_transfer *tx) |
| { |
| struct pipe_screen *pscreen = pipe->screen; |
| |
| struct pipe_resource staging_resource_template; |
| |
| pipe_resource_reference(&tx->base.resource, pt); |
| tx->base.level = level; |
| tx->base.usage = usage; |
| tx->base.box = *box; |
| |
| if (direct) |
| { |
| tx->staging_resource = pt; |
| return tx; |
| } |
| |
| util_staging_resource_template(pt, box->width, box->height, box->depth, &staging_resource_template); |
| tx->staging_resource = pscreen->resource_create(pscreen, &staging_resource_template); |
| if (!tx->staging_resource) |
| { |
| pipe_resource_reference(&tx->base.resource, NULL); |
| FREE(tx); |
| return NULL; |
| } |
| |
| if (usage & PIPE_TRANSFER_READ) |
| { |
| /* XXX this looks wrong dst is always the same but looping over src z? */ |
| int zi; |
| struct pipe_box sbox; |
| sbox.x = box->x; |
| sbox.y = box->y; |
| sbox.z = box->z; |
| sbox.width = box->width; |
| sbox.height = box->height; |
| sbox.depth = 1; |
| for(zi = 0; zi < box->depth; ++zi) { |
| sbox.z = sbox.z + zi; |
| pipe->resource_copy_region(pipe, tx->staging_resource, 0, 0, 0, 0, |
| tx->base.resource, level, &sbox); |
| } |
| } |
| |
| return tx; |
| } |
| |
| void |
| util_staging_transfer_destroy(struct pipe_context *pipe, struct pipe_transfer *ptx) |
| { |
| struct util_staging_transfer *tx = (struct util_staging_transfer *)ptx; |
| |
| if (tx->staging_resource != tx->base.resource) |
| { |
| if(tx->base.usage & PIPE_TRANSFER_WRITE) { |
| /* XXX this looks wrong src is always the same but looping over dst z? */ |
| int zi; |
| struct pipe_box sbox; |
| sbox.x = 0; |
| sbox.y = 0; |
| sbox.z = 0; |
| sbox.width = tx->base.box.width; |
| sbox.height = tx->base.box.height; |
| sbox.depth = 1; |
| for(zi = 0; zi < tx->base.box.depth; ++zi) |
| pipe->resource_copy_region(pipe, tx->base.resource, tx->base.level, tx->base.box.x, tx->base.box.y, tx->base.box.z + zi, |
| tx->staging_resource, 0, &sbox); |
| } |
| |
| pipe_resource_reference(&tx->staging_resource, NULL); |
| } |
| |
| pipe_resource_reference(&ptx->resource, NULL); |
| FREE(ptx); |
| } |