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  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_dump.h"
  32. #include "tgsi/tgsi_parse.h"
  33. #include "util/u_memory.h"
  34. #include "draw/draw_context.h"
  35.  
  36. #include "lp_context.h"
  37. #include "lp_debug.h"
  38. #include "lp_state.h"
  39.  
  40.  
  41. static void *
  42. llvmpipe_create_vs_state(struct pipe_context *pipe,
  43.                          const struct pipe_shader_state *templ)
  44. {
  45.    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
  46.    struct lp_vertex_shader *state;
  47.  
  48.    state = CALLOC_STRUCT(lp_vertex_shader);
  49.    if (state == NULL )
  50.       goto fail;
  51.  
  52.    /* copy shader tokens, the ones passed in will go away.
  53.     */
  54.    state->shader.tokens = tgsi_dup_tokens(templ->tokens);
  55.    if (state->shader.tokens == NULL)
  56.       goto fail;
  57.  
  58.    state->draw_data = draw_create_vertex_shader(llvmpipe->draw, templ);
  59.    if (state->draw_data == NULL)
  60.       goto fail;
  61.  
  62.    if (LP_DEBUG & DEBUG_TGSI) {
  63.       debug_printf("llvmpipe: Create vertex shader %p:\n", (void *) state);
  64.       tgsi_dump(templ->tokens, 0);
  65.    }
  66.  
  67.    return state;
  68.  
  69. fail:
  70.    if (state) {
  71.       FREE( (void *)state->shader.tokens );
  72.       FREE( state->draw_data );
  73.       FREE( state );
  74.    }
  75.    return NULL;
  76. }
  77.  
  78.  
  79. static void
  80. llvmpipe_bind_vs_state(struct pipe_context *pipe, void *_vs)
  81. {
  82.    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
  83.    const struct lp_vertex_shader *vs = (const struct lp_vertex_shader *)_vs;
  84.  
  85.    if (llvmpipe->vs == vs)
  86.       return;
  87.  
  88.    draw_bind_vertex_shader(llvmpipe->draw,
  89.                            vs ? vs->draw_data : NULL);
  90.  
  91.    llvmpipe->vs = vs;
  92.  
  93.    llvmpipe->dirty |= LP_NEW_VS;
  94. }
  95.  
  96.  
  97. static void
  98. llvmpipe_delete_vs_state(struct pipe_context *pipe, void *vs)
  99. {
  100.    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
  101.  
  102.    struct lp_vertex_shader *state =
  103.       (struct lp_vertex_shader *)vs;
  104.  
  105.    draw_delete_vertex_shader(llvmpipe->draw, state->draw_data);
  106.    FREE( (void *)state->shader.tokens );
  107.    FREE( state );
  108. }
  109.  
  110.  
  111.  
  112. void
  113. llvmpipe_init_vs_funcs(struct llvmpipe_context *llvmpipe)
  114. {
  115.    llvmpipe->pipe.create_vs_state = llvmpipe_create_vs_state;
  116.    llvmpipe->pipe.bind_vs_state   = llvmpipe_bind_vs_state;
  117.    llvmpipe->pipe.delete_vs_state = llvmpipe_delete_vs_state;
  118. }
  119.