Home | History | Annotate | Download | only in llvmpipe 
      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