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/**************************************************************************
*
* Copyright 2010 VMware, Inc.
* All Rights Reserved.
*
* 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, 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 VMWARE 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 "lp_context.h"
#include "lp_state.h"
#include "lp_texture.h"
#include "util/u_memory.h"
#include "draw/draw_context.h"
static void *
llvmpipe_create_stream_output_state(struct pipe_context *pipe,
const struct pipe_stream_output_state *templ)
{
struct lp_so_state *so;
so = (struct lp_so_state *) CALLOC_STRUCT(lp_so_state);
if (so) {
so->base.num_outputs = templ->num_outputs;
so->base.stride = templ->stride;
memcpy(so->base.output_buffer,
templ->output_buffer,
sizeof(int) * templ->num_outputs);
memcpy(so->base.register_index,
templ->register_index,
sizeof(int) * templ->num_outputs);
memcpy(so->base.register_mask,
templ->register_mask,
sizeof(ubyte) * templ->num_outputs);
}
return so;
}
static void
llvmpipe_bind_stream_output_state(struct pipe_context *pipe,
void *so)
{
struct llvmpipe_context *lp = llvmpipe_context(pipe);
struct lp_so_state *lp_so = (struct lp_so_state *) so;
lp->so = lp_so;
lp->dirty |= LP_NEW_SO;
if (lp_so)
draw_set_so_state(lp->draw, &lp_so->base);
}
static void
llvmpipe_delete_stream_output_state(struct pipe_context *pipe, void *so)
{
FREE( so );
}
static void
llvmpipe_set_stream_output_buffers(struct pipe_context *pipe,
struct pipe_resource **buffers,
int *offsets,
int num_buffers)
{
struct llvmpipe_context *lp = llvmpipe_context(pipe);
int i;
void *map_buffers[PIPE_MAX_SO_BUFFERS];
assert(num_buffers <= PIPE_MAX_SO_BUFFERS);
if (num_buffers > PIPE_MAX_SO_BUFFERS)
num_buffers = PIPE_MAX_SO_BUFFERS;
lp->dirty |= LP_NEW_SO_BUFFERS;
for (i = 0; i < num_buffers; ++i) {
void *mapped;
struct llvmpipe_resource *res = llvmpipe_resource(buffers[i]);
if (!res) {
/* the whole call is invalid, bail out */
lp->so_target.num_buffers = 0;
draw_set_mapped_so_buffers(lp->draw, 0, 0);
return;
}
lp->so_target.buffer[i] = res;
lp->so_target.offset[i] = offsets[i];
lp->so_target.so_count[i] = 0;
mapped = res->data;
if (offsets[i] >= 0)
map_buffers[i] = ((char*)mapped) + offsets[i];
else {
/* this is a buffer append */
assert(!"appending not implemented");
map_buffers[i] = mapped;
}
}
lp->so_target.num_buffers = num_buffers;
draw_set_mapped_so_buffers(lp->draw, map_buffers, num_buffers);
}
void
llvmpipe_init_so_funcs(struct llvmpipe_context *llvmpipe)
{
llvmpipe->pipe.create_stream_output_state =
llvmpipe_create_stream_output_state;
llvmpipe->pipe.bind_stream_output_state =
llvmpipe_bind_stream_output_state;
llvmpipe->pipe.delete_stream_output_state =
llvmpipe_delete_stream_output_state;
llvmpipe->pipe.set_stream_output_buffers =
llvmpipe_set_stream_output_buffers;
}
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