+++ /dev/null
-/**************************************************************************
- *
- * 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, enum pipe_resource_usage 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);
-}
+++ /dev/null
-/**************************************************************************
- *
- * 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.
- *
- **************************************************************************/
-
-/* Direct3D 10/11 has no concept of transfers. Applications instead
- * create resources with a STAGING or DYNAMIC usage, copy between them
- * and the real resource and use Map to map the STAGING/DYNAMIC resource.
- *
- * This util module allows to implement Gallium drivers as a Direct3D
- * driver would be implemented: transfers allocate a resource with
- * PIPE_USAGE_STAGING, and copy the data between it and the real resource
- * with resource_copy_region.
- */
-
-#ifndef U_STAGING_H
-#define U_STAGING_H
-
-#include "pipe/p_state.h"
-
-struct util_staging_transfer {
- struct pipe_transfer base;
-
- /* if direct, same as base.resource, otherwise the temporary staging
- * resource
- */
- struct pipe_resource *staging_resource;
-};
-
-/* user must be stride, slice_stride and offset.
- * pt->usage == PIPE_USAGE_DYNAMIC || pt->usage == PIPE_USAGE_STAGING
- * should be a good value to pass for direct staging resource is currently
- * created with PIPE_USAGE_STAGING
- */
-struct util_staging_transfer *
-util_staging_transfer_init(struct pipe_context *pipe,
- struct pipe_resource *pt,
- unsigned level, enum pipe_resource_usage usage,
- const struct pipe_box *box,
- boolean direct, struct util_staging_transfer *tx);
-
-void
-util_staging_transfer_destroy(struct pipe_context *pipe,
- struct pipe_transfer *ptx);
-
-#endif
projects / mesa.git / commitdiff