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 #include "nir/nir_to_tgsi_info.h"
41 #include "nir.h"
42
43
44 static void
vs_llvm_prepare(struct draw_vertex_shader * shader,struct draw_context * draw)45 vs_llvm_prepare(struct draw_vertex_shader *shader,
46 struct draw_context *draw)
47 {
48 /*struct llvm_vertex_shader *evs = llvm_vertex_shader(shader);*/
49 }
50
51
52 static void
vs_llvm_run_linear(struct draw_vertex_shader * shader,const float (* input)[4],float (* output)[4],const struct draw_buffer_info * constants,unsigned count,unsigned input_stride,unsigned output_stride,const unsigned * elts)53 vs_llvm_run_linear(struct draw_vertex_shader *shader,
54 const float (*input)[4],
55 float (*output)[4],
56 const struct draw_buffer_info *constants,
57 unsigned count,
58 unsigned input_stride,
59 unsigned output_stride,
60 const unsigned *elts)
61 {
62 /* we should never get here since the entire pipeline is
63 * generated in draw_pt_fetch_shade_pipeline_llvm.c */
64 assert(0);
65 }
66
67
68 static void
vs_llvm_delete(struct draw_vertex_shader * dvs)69 vs_llvm_delete(struct draw_vertex_shader *dvs)
70 {
71 struct llvm_vertex_shader *shader = llvm_vertex_shader(dvs);
72 struct draw_llvm_variant_list_item *li, *next;
73
74 LIST_FOR_EACH_ENTRY_SAFE(li, next, &shader->variants.list, list) {
75 draw_llvm_destroy_variant(li->base);
76 }
77
78 assert(shader->variants_cached == 0);
79 if (dvs->state.ir.nir)
80 ralloc_free(dvs->state.ir.nir);
81 FREE((void*) dvs->state.tokens);
82 FREE(dvs);
83 }
84
85
86 struct draw_vertex_shader *
draw_create_vs_llvm(struct draw_context * draw,const struct pipe_shader_state * state)87 draw_create_vs_llvm(struct draw_context *draw,
88 const struct pipe_shader_state *state)
89 {
90 struct llvm_vertex_shader *vs = CALLOC_STRUCT(llvm_vertex_shader);
91
92 if (!vs)
93 return NULL;
94
95 if (state->type == PIPE_SHADER_IR_NIR) {
96 vs->base.state.ir.nir = state->ir.nir;
97 nir_shader *nir = (nir_shader *)state->ir.nir;
98 if (!nir->options->lower_uniforms_to_ubo)
99 NIR_PASS_V(state->ir.nir, nir_lower_uniforms_to_ubo, false, false);
100 nir_tgsi_scan_shader(state->ir.nir, &vs->base.info, true);
101 } else {
102 /* we make a private copy of the tokens */
103 vs->base.state.tokens = tgsi_dup_tokens(state->tokens);
104 if (!vs->base.state.tokens) {
105 FREE(vs);
106 return NULL;
107 }
108
109 tgsi_scan_shader(state->tokens, &vs->base.info);
110 }
111
112 vs->variant_key_size =
113 draw_llvm_variant_key_size(
114 vs->base.info.file_max[TGSI_FILE_INPUT]+1,
115 vs->base.info.file_max[TGSI_FILE_SAMPLER]+1,
116 vs->base.info.file_max[TGSI_FILE_SAMPLER_VIEW]+1,
117 vs->base.info.file_max[TGSI_FILE_IMAGE]+1);
118
119 vs->base.state.type = state->type;
120 vs->base.state.stream_output = state->stream_output;
121 vs->base.draw = draw;
122 vs->base.prepare = vs_llvm_prepare;
123 vs->base.run_linear = vs_llvm_run_linear;
124 vs->base.delete = vs_llvm_delete;
125 vs->base.create_variant = draw_vs_create_variant_generic;
126
127 list_inithead(&vs->variants.list);
128
129 return &vs->base;
130 }
131