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		    const unsigned *elts)
58{
59   /* we should never get here since the entire pipeline is
60    * generated in draw_pt_fetch_shade_pipeline_llvm.c */
61   debug_assert(0);
62}
63
64
65static void
66vs_llvm_delete( struct draw_vertex_shader *dvs )
67{
68   struct llvm_vertex_shader *shader = llvm_vertex_shader(dvs);
69   struct draw_llvm_variant_list_item *li;
70
71   li = first_elem(&shader->variants);
72   while(!at_end(&shader->variants, li)) {
73      struct draw_llvm_variant_list_item *next = next_elem(li);
74      draw_llvm_destroy_variant(li->base);
75      li = next;
76   }
77
78   assert(shader->variants_cached == 0);
79   FREE((void*) dvs->state.tokens);
80   FREE( dvs );
81}
82
83
84struct draw_vertex_shader *
85draw_create_vs_llvm(struct draw_context *draw,
86		    const struct pipe_shader_state *state)
87{
88   struct llvm_vertex_shader *vs = CALLOC_STRUCT( llvm_vertex_shader );
89
90   if (!vs)
91      return NULL;
92
93   /* we make a private copy of the tokens */
94   vs->base.state.tokens = tgsi_dup_tokens(state->tokens);
95   if (!vs->base.state.tokens) {
96      FREE(vs);
97      return NULL;
98   }
99
100   tgsi_scan_shader(state->tokens, &vs->base.info);
101
102   vs->variant_key_size =
103      draw_llvm_variant_key_size(
104         vs->base.info.file_max[TGSI_FILE_INPUT]+1,
105         MAX2(vs->base.info.file_max[TGSI_FILE_SAMPLER]+1,
106              vs->base.info.file_max[TGSI_FILE_SAMPLER_VIEW]+1));
107
108   vs->base.state.stream_output = state->stream_output;
109   vs->base.draw = draw;
110   vs->base.prepare = vs_llvm_prepare;
111   vs->base.run_linear = vs_llvm_run_linear;
112   vs->base.delete = vs_llvm_delete;
113   vs->base.create_variant = draw_vs_create_variant_generic;
114
115   make_empty_list(&vs->variants);
116
117   return &vs->base;
118}
119