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/*
* Copyright 2014, 2015 Red Hat.
*
* 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
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR 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_inlines.h"
#include "util/u_memory.h"
#include "virgl_context.h"
#include "virgl_resource.h"
#include "virgl_screen.h"
static void virgl_buffer_destroy(struct pipe_screen *screen,
struct pipe_resource *buf)
{
struct virgl_screen *vs = virgl_screen(screen);
struct virgl_buffer *vbuf = virgl_buffer(buf);
util_range_destroy(&vbuf->valid_buffer_range);
vs->vws->resource_unref(vs->vws, vbuf->base.hw_res);
FREE(vbuf);
}
static void *virgl_buffer_transfer_map(struct pipe_context *ctx,
struct pipe_resource *resource,
unsigned level,
unsigned usage,
const struct pipe_box *box,
struct pipe_transfer **transfer)
{
struct virgl_context *vctx = virgl_context(ctx);
struct virgl_screen *vs = virgl_screen(ctx->screen);
struct virgl_buffer *vbuf = virgl_buffer(resource);
struct virgl_transfer *trans;
void *ptr;
bool readback;
uint32_t offset;
bool doflushwait = false;
if ((usage & PIPE_TRANSFER_READ) && (vbuf->on_list == TRUE))
doflushwait = true;
else
doflushwait = virgl_res_needs_flush_wait(vctx, &vbuf->base, usage);
if (doflushwait)
ctx->flush(ctx, NULL, 0);
trans = slab_alloc_st(&vctx->texture_transfer_pool);
if (!trans)
return NULL;
trans->base.resource = resource;
trans->base.level = level;
trans->base.usage = usage;
trans->base.box = *box;
trans->base.stride = 0;
trans->base.layer_stride = 0;
offset = box->x;
readback = virgl_res_needs_readback(vctx, &vbuf->base, usage);
if (readback)
vs->vws->transfer_get(vs->vws, vbuf->base.hw_res, box, trans->base.stride, trans->base.layer_stride, offset, level);
if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED))
doflushwait = true;
if (doflushwait || readback)
vs->vws->resource_wait(vs->vws, vbuf->base.hw_res);
ptr = vs->vws->resource_map(vs->vws, vbuf->base.hw_res);
if (!ptr) {
return NULL;
}
trans->offset = offset;
*transfer = &trans->base;
return ptr + trans->offset;
}
static void virgl_buffer_transfer_unmap(struct pipe_context *ctx,
struct pipe_transfer *transfer)
{
struct virgl_context *vctx = virgl_context(ctx);
struct virgl_transfer *trans = virgl_transfer(transfer);
struct virgl_buffer *vbuf = virgl_buffer(transfer->resource);
if (trans->base.usage & PIPE_TRANSFER_WRITE) {
if (!(transfer->usage & PIPE_TRANSFER_FLUSH_EXPLICIT)) {
struct virgl_screen *vs = virgl_screen(ctx->screen);
vbuf->base.clean = FALSE;
vctx->num_transfers++;
vs->vws->transfer_put(vs->vws, vbuf->base.hw_res,
&transfer->box, trans->base.stride, trans->base.layer_stride, trans->offset, transfer->level);
}
}
slab_free_st(&vctx->texture_transfer_pool, trans);
}
static void virgl_buffer_transfer_flush_region(struct pipe_context *ctx,
struct pipe_transfer *transfer,
const struct pipe_box *box)
{
struct virgl_context *vctx = virgl_context(ctx);
struct virgl_buffer *vbuf = virgl_buffer(transfer->resource);
if (!vbuf->on_list) {
struct pipe_resource *res = NULL;
list_addtail(&vbuf->flush_list, &vctx->to_flush_bufs);
vbuf->on_list = TRUE;
pipe_resource_reference(&res, &vbuf->base.u.b);
}
util_range_add(&vbuf->valid_buffer_range, transfer->box.x + box->x,
transfer->box.x + box->x + box->width);
vbuf->base.clean = FALSE;
}
static const struct u_resource_vtbl virgl_buffer_vtbl =
{
u_default_resource_get_handle, /* get_handle */
virgl_buffer_destroy, /* resource_destroy */
virgl_buffer_transfer_map, /* transfer_map */
virgl_buffer_transfer_flush_region, /* transfer_flush_region */
virgl_buffer_transfer_unmap, /* transfer_unmap */
};
struct pipe_resource *virgl_buffer_create(struct virgl_screen *vs,
const struct pipe_resource *template)
{
struct virgl_buffer *buf;
uint32_t size;
uint32_t vbind;
buf = CALLOC_STRUCT(virgl_buffer);
buf->base.clean = TRUE;
buf->base.u.b = *template;
buf->base.u.b.screen = &vs->base;
buf->base.u.vtbl = &virgl_buffer_vtbl;
pipe_reference_init(&buf->base.u.b.reference, 1);
util_range_init(&buf->valid_buffer_range);
vbind = pipe_to_virgl_bind(template->bind);
size = template->width0;
buf->base.hw_res = vs->vws->resource_create(vs->vws, template->target, template->format, vbind, template->width0, 1, 1, 1, 0, 0, size);
util_range_set_empty(&buf->valid_buffer_range);
return &buf->base.u.b;
}
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