/**************************************************************************
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*
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* Copyright 2010 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "lp_context.h"
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#include "lp_state.h"
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#include "lp_texture.h"
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#include "util/u_memory.h"
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#include "draw/draw_context.h"
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static struct pipe_stream_output_target *
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llvmpipe_create_so_target(struct pipe_context *pipe,
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struct pipe_resource *buffer,
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unsigned buffer_offset,
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unsigned buffer_size)
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{
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struct draw_so_target *t;
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t = CALLOC_STRUCT(draw_so_target);
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if (!t)
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return NULL;
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t->target.context = pipe;
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t->target.reference.count = 1;
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pipe_resource_reference(&t->target.buffer, buffer);
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t->target.buffer_offset = buffer_offset;
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t->target.buffer_size = buffer_size;
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return &t->target;
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}
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static void
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llvmpipe_so_target_destroy(struct pipe_context *pipe,
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struct pipe_stream_output_target *target)
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{
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pipe_resource_reference(&target->buffer, NULL);
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FREE(target);
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}
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static void
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llvmpipe_set_so_targets(struct pipe_context *pipe,
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unsigned num_targets,
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struct pipe_stream_output_target **targets,
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const unsigned *offsets)
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{
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struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
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int i;
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for (i = 0; i < num_targets; i++) {
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const boolean append = (offsets[i] == (unsigned)-1);
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/*
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* Warn if the so target was created in another context.
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* XXX Not entirely sure if mesa/st may rely on this?
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* Otherwise should just assert.
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*/
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if (targets[i] && targets[i]->context != pipe) {
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debug_printf("Illegal setting of so target with target %d created in "
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"another context\n", i);
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}
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pipe_so_target_reference((struct pipe_stream_output_target **)&llvmpipe->so_targets[i], targets[i]);
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/* If we're not appending then lets set the internal
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offset to what was requested */
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if (!append && llvmpipe->so_targets[i]) {
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llvmpipe->so_targets[i]->internal_offset = offsets[i];
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}
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}
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for (; i < llvmpipe->num_so_targets; i++) {
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pipe_so_target_reference((struct pipe_stream_output_target **)&llvmpipe->so_targets[i], NULL);
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}
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llvmpipe->num_so_targets = num_targets;
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}
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void
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llvmpipe_init_so_funcs(struct llvmpipe_context *pipe)
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{
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pipe->pipe.create_stream_output_target = llvmpipe_create_so_target;
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pipe->pipe.stream_output_target_destroy = llvmpipe_so_target_destroy;
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pipe->pipe.set_stream_output_targets = llvmpipe_set_so_targets;
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}
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