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/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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 "lp_context.h"
#include "lp_state.h"
#include "lp_texture.h"
#include "pipe/p_defines.h"
#include "util/u_memory.h"
#include "util/u_inlines.h"
#include "draw/draw_context.h"
#include "tgsi/tgsi_dump.h"
#include "tgsi/tgsi_scan.h"
#include "tgsi/tgsi_parse.h"
static void *
llvmpipe_create_gs_state(struct pipe_context *pipe,
const struct pipe_shader_state *templ)
{
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
struct lp_geometry_shader *state;
state = CALLOC_STRUCT(lp_geometry_shader);
if (state == NULL )
goto fail;
/* debug */
if (0)
tgsi_dump(templ->tokens, 0);
/* copy stream output info */
state->shader = *templ;
if (templ->tokens) {
/* copy shader tokens, the ones passed in will go away. */
state->shader.tokens = tgsi_dup_tokens(templ->tokens);
if (state->shader.tokens == NULL)
goto fail;
state->draw_data = draw_create_geometry_shader(llvmpipe->draw, templ);
if (state->draw_data == NULL)
goto fail;
}
return state;
fail:
if (state) {
FREE( (void *)state->shader.tokens );
FREE( state->draw_data );
FREE( state );
}
return NULL;
}
static void
llvmpipe_bind_gs_state(struct pipe_context *pipe, void *gs)
{
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
llvmpipe->gs = (struct lp_geometry_shader *)gs;
draw_bind_geometry_shader(llvmpipe->draw,
(llvmpipe->gs ? llvmpipe->gs->draw_data : NULL));
llvmpipe->dirty |= LP_NEW_GS;
}
static void
llvmpipe_delete_gs_state(struct pipe_context *pipe, void *gs)
{
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
struct lp_geometry_shader *state =
(struct lp_geometry_shader *)gs;
draw_delete_geometry_shader(llvmpipe->draw,
(state) ? state->draw_data : 0);
FREE( (void *)state->shader.tokens );
FREE(state);
}
void
llvmpipe_init_gs_funcs(struct llvmpipe_context *llvmpipe)
{
llvmpipe->pipe.create_gs_state = llvmpipe_create_gs_state;
llvmpipe->pipe.bind_gs_state = llvmpipe_bind_gs_state;
llvmpipe->pipe.delete_gs_state = llvmpipe_delete_gs_state;
}
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