draw_vs_llvm.c revision b7e150605d402224cdd8fa3d186924bdee3c6c49 
1/**************************************************************************
2 *
3 * Copyright 2010 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#include "util/u_math.h"
29#include "util/u_memory.h"
30#include "pipe/p_shader_tokens.h"
31#include "pipe/p_screen.h"
32
33#include "draw_private.h"
34#include "draw_context.h"
35#include "draw_vs.h"
36#include "draw_llvm.h"
37
38#include "tgsi/tgsi_parse.h"
39#include "tgsi/tgsi_scan.h"
40
41static void
42vs_llvm_prepare(struct draw_vertex_shader *shader,
43                struct draw_context *draw)
44{
45   /*struct llvm_vertex_shader *evs = llvm_vertex_shader(shader);*/
46}
47
48static void
49vs_llvm_run_linear( struct draw_vertex_shader *shader,
50		    const float (*input)[4],
51		    float (*output)[4],
52                    const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
53                    const unsigned constants_size[PIPE_MAX_CONSTANT_BUFFERS],
54		    unsigned count,
55		    unsigned input_stride,
56		    unsigned output_stride )
57{
58   /* we should never get here since the entire pipeline is
59    * generated in draw_pt_fetch_shade_pipeline_llvm.c */
60   debug_assert(0);
61}
62
63
64static void
65vs_llvm_delete( struct draw_vertex_shader *dvs )
66{
67   struct llvm_vertex_shader *shader = llvm_vertex_shader(dvs);
68   struct draw_llvm_variant_list_item *li;
69
70   li = first_elem(&shader->variants);
71   while(!at_end(&shader->variants, li)) {
72      struct draw_llvm_variant_list_item *next = next_elem(li);
73      draw_llvm_destroy_variant(li->base);
74      li = next;
75   }
76
77   assert(shader->variants_cached == 0);
78   FREE((void*) dvs->state.tokens);
79   FREE( dvs );
80}
81
82
83struct draw_vertex_shader *
84draw_create_vs_llvm(struct draw_context *draw,
85		    const struct pipe_shader_state *state)
86{
87   struct llvm_vertex_shader *vs = CALLOC_STRUCT( llvm_vertex_shader );
88
89   if (vs == NULL)
90      return NULL;
91
92   /* we make a private copy of the tokens */
93   vs->base.state.tokens = tgsi_dup_tokens(state->tokens);
94   if (!vs->base.state.tokens) {
95      FREE(vs);
96      return NULL;
97   }
98
99   tgsi_scan_shader(state->tokens, &vs->base.info);
100
101   vs->variant_key_size =
102      draw_llvm_variant_key_size(
103	 vs->base.info.file_max[TGSI_FILE_INPUT]+1,
104	 vs->base.info.file_max[TGSI_FILE_SAMPLER]+1);
105
106   vs->base.draw = draw;
107   vs->base.prepare = vs_llvm_prepare;
108   vs->base.run_linear = vs_llvm_run_linear;
109   vs->base.delete = vs_llvm_delete;
110   vs->base.create_variant = draw_vs_create_variant_generic;
111
112   make_empty_list(&vs->variants);
113
114   return &vs->base;
115}
116