Subversion Repositories Kolibri OS

/**************************************************************************

 *

 * 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 TUNGSTEN GRAPHICS 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 "sp_context.h"

#include "sp_state.h"

#include "sp_texture.h"

#include "util/u_format.h"

#include "util/u_memory.h"

#include "draw/draw_context.h"

#include "pipebuffer/pb_buffer.h"

static struct pipe_stream_output_target *

softpipe_create_so_target(struct pipe_context *pipe,

                          struct pipe_resource *buffer,

                          unsigned buffer_offset,

                          unsigned buffer_size)

{

   struct draw_so_target *t;

   t = CALLOC_STRUCT(draw_so_target);

   t->target.context = pipe;

   t->target.reference.count = 1;

   pipe_resource_reference(&t->target.buffer, buffer);

   t->target.buffer_offset = buffer_offset;

   t->target.buffer_size = buffer_size;

   return &t->target;

}

static void

softpipe_so_target_destroy(struct pipe_context *pipe,

                           struct pipe_stream_output_target *target)

{

   pipe_resource_reference(&target->buffer, NULL);

   FREE(target);

}

static void

softpipe_set_so_targets(struct pipe_context *pipe,

                        unsigned num_targets,

                        struct pipe_stream_output_target **targets,

                        unsigned append_bitmask)

{

   struct softpipe_context *softpipe = softpipe_context(pipe);

   unsigned i;

   for (i = 0; i < num_targets; i++) {

      pipe_so_target_reference((struct pipe_stream_output_target **)&softpipe->so_targets[i], targets[i]);

   }

   for (; i < softpipe->num_so_targets; i++) {

      pipe_so_target_reference((struct pipe_stream_output_target **)&softpipe->so_targets[i], NULL);

   }

   softpipe->num_so_targets = num_targets;

}

void

softpipe_init_streamout_funcs(struct pipe_context *pipe)

{

   pipe->create_stream_output_target = softpipe_create_so_target;

   pipe->stream_output_target_destroy = softpipe_so_target_destroy;

   pipe->set_stream_output_targets = softpipe_set_so_targets;

}