src/gallium/drivers/llvmpipe/lp_state_vs.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   4  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the
   9  * "Software"), to deal in the Software without restriction, including
  10  * without limitation the rights to use, copy, modify, merge, publish,
  11  * distribute, sub license, and/or sell copies of the Software, and to
  12  * permit persons to whom the Software is furnished to do so, subject to
  13  * the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the
  16  * next paragraph) shall be included in all copies or substantial portions
  17  * of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26  *
  27  **************************************************************************/
  28
  29
  30 #include "pipe/p_defines.h"
  31 #include "tgsi/tgsi_parse.h"
  32 #include "util/u_memory.h"
  33 #include "draw/draw_context.h"
  34
  35 #include "lp_context.h"
  36 #include "lp_state.h"
  37
  38
  39 void *
  40 llvmpipe_create_vs_state(struct pipe_context *pipe,
  41                          const struct pipe_shader_state *templ)
  42 {
  43    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
  44    struct lp_vertex_shader *state;
  45
  46    state = CALLOC_STRUCT(lp_vertex_shader);
  47    if (state == NULL )
  48       goto fail;
  49
  50    /* copy shader tokens, the ones passed in will go away.
  51     */
  52    state->shader.tokens = tgsi_dup_tokens(templ->tokens);
  53    if (state->shader.tokens == NULL)
  54       goto fail;
  55
  56    state->draw_data = draw_create_vertex_shader(llvmpipe->draw, templ);
  57    if (state->draw_data == NULL)
  58       goto fail;
  59
  60    return state;
  61
  62 fail:
  63    if (state) {
  64       FREE( (void *)state->shader.tokens );
  65       FREE( state->draw_data );
  66       FREE( state );
  67    }
  68    return NULL;
  69 }
  70
  71
  72 void
  73 llvmpipe_bind_vs_state(struct pipe_context *pipe, void *vs)
  74 {
  75    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
  76
  77    llvmpipe->vs = (const struct lp_vertex_shader *)vs;
  78
  79    draw_bind_vertex_shader(llvmpipe->draw,
  80                            (llvmpipe->vs ? llvmpipe->vs->draw_data : NULL));
  81
  82    llvmpipe->dirty |= LP_NEW_VS;
  83 }
  84
  85
  86 void
  87 llvmpipe_delete_vs_state(struct pipe_context *pipe, void *vs)
  88 {
  89    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
  90
  91    struct lp_vertex_shader *state =
  92       (struct lp_vertex_shader *)vs;
  93
  94    draw_delete_vertex_shader(llvmpipe->draw, state->draw_data);
  95    FREE( (void *)state->shader.tokens );
  96    FREE( state );
  97 }