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
41 static void
vs_llvm_prepare(struct draw_vertex_shader * shader,struct draw_context * draw)42 vs_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
48 static void
vs_llvm_run_linear(struct draw_vertex_shader * shader,const float (* input)[4],float (* output)[4],const void * constants[PIPE_MAX_CONSTANT_BUFFERS],const unsigned constants_size[PIPE_MAX_CONSTANT_BUFFERS],unsigned count,unsigned input_stride,unsigned output_stride)49 vs_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
64 static void
vs_llvm_delete(struct draw_vertex_shader * dvs)65 vs_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
83 struct draw_vertex_shader *
draw_create_vs_llvm(struct draw_context * draw,const struct pipe_shader_state * state)84 draw_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.state.stream_output = state->stream_output;
107 vs->base.draw = draw;
108 vs->base.prepare = vs_llvm_prepare;
109 vs->base.run_linear = vs_llvm_run_linear;
110 vs->base.delete = vs_llvm_delete;
111 vs->base.create_variant = draw_vs_create_variant_generic;
112
113 make_empty_list(&vs->variants);
114
115 return &vs->base;
116 }
117