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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_encode.h"
#include "virgl_protocol.h"
#include "virgl_resource.h"
static struct pipe_stream_output_target *virgl_create_so_target(
struct pipe_context *ctx,
struct pipe_resource *buffer,
unsigned buffer_offset,
unsigned buffer_size)
{
struct virgl_context *vctx = virgl_context(ctx);
struct virgl_resource *res = virgl_resource(buffer);
struct virgl_so_target *t = CALLOC_STRUCT(virgl_so_target);
uint32_t handle;
if (!t)
return NULL;
handle = virgl_object_assign_handle();
t->base.reference.count = 1;
t->base.context = ctx;
pipe_resource_reference(&t->base.buffer, buffer);
t->base.buffer_offset = buffer_offset;
t->base.buffer_size = buffer_size;
t->handle = handle;
res->bind_history |= PIPE_BIND_STREAM_OUTPUT;
util_range_add(&res->valid_buffer_range, buffer_offset,
buffer_offset + buffer_size);
virgl_resource_dirty(res, 0);
virgl_encoder_create_so_target(vctx, handle, res, buffer_offset, buffer_size);
return &t->base;
}
static void virgl_destroy_so_target(struct pipe_context *ctx,
struct pipe_stream_output_target *target)
{
struct virgl_context *vctx = virgl_context(ctx);
struct virgl_so_target *t = virgl_so_target(target);
pipe_resource_reference(&t->base.buffer, NULL);
virgl_encode_delete_object(vctx, t->handle, VIRGL_OBJECT_STREAMOUT_TARGET);
FREE(t);
}
static void virgl_set_so_targets(struct pipe_context *ctx,
unsigned num_targets,
struct pipe_stream_output_target **targets,
const unsigned *offset)
{
struct virgl_context *vctx = virgl_context(ctx);
int i;
for (i = 0; i < num_targets; i++) {
if (targets[i]) {
struct virgl_winsys *vws = virgl_screen(vctx->base.screen)->vws;
struct virgl_resource *res = virgl_resource(targets[i]->buffer);
pipe_resource_reference(&vctx->so_targets[i].base.buffer, targets[i]->buffer);
vws->emit_res(vws, vctx->cbuf, res->hw_res, FALSE);
} else {
pipe_resource_reference(&vctx->so_targets[i].base.buffer, NULL);
}
}
for (i = num_targets; i < vctx->num_so_targets; i++)
pipe_resource_reference(&vctx->so_targets[i].base.buffer, NULL);
vctx->num_so_targets = num_targets;
virgl_encoder_set_so_targets(vctx, num_targets, targets, 0);//append_bitmask);
}
void virgl_init_so_functions(struct virgl_context *vctx)
{
vctx->base.create_stream_output_target = virgl_create_so_target;
vctx->base.stream_output_target_destroy = virgl_destroy_so_target;
vctx->base.set_stream_output_targets = virgl_set_so_targets;
}
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