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 static void
vs_llvm_prepare(struct draw_vertex_shader * shader,struct draw_context * draw)44 vs_llvm_prepare(struct draw_vertex_shader *shader,
45 struct draw_context *draw)
46 {
47 /*struct llvm_vertex_shader *evs = llvm_vertex_shader(shader);*/
48 }
49
50 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,const unsigned * elts)51 vs_llvm_run_linear( struct draw_vertex_shader *shader,
52 const float (*input)[4],
53 float (*output)[4],
54 const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
55 const unsigned constants_size[PIPE_MAX_CONSTANT_BUFFERS],
56 unsigned count,
57 unsigned input_stride,
58 unsigned output_stride,
59 const unsigned *elts)
60 {
61 /* we should never get here since the entire pipeline is
62 * generated in draw_pt_fetch_shade_pipeline_llvm.c */
63 debug_assert(0);
64 }
65
66
67 static void
vs_llvm_delete(struct draw_vertex_shader * dvs)68 vs_llvm_delete( struct draw_vertex_shader *dvs )
69 {
70 struct llvm_vertex_shader *shader = llvm_vertex_shader(dvs);
71 struct draw_llvm_variant_list_item *li;
72
73 li = first_elem(&shader->variants);
74 while(!at_end(&shader->variants, li)) {
75 struct draw_llvm_variant_list_item *next = next_elem(li);
76 draw_llvm_destroy_variant(li->base);
77 li = next;
78 }
79
80 assert(shader->variants_cached == 0);
81 if (dvs->state.ir.nir)
82 ralloc_free(dvs->state.ir.nir);
83 FREE((void*) dvs->state.tokens);
84 FREE( dvs );
85 }
86
87
88 struct draw_vertex_shader *
draw_create_vs_llvm(struct draw_context * draw,const struct pipe_shader_state * state)89 draw_create_vs_llvm(struct draw_context *draw,
90 const struct pipe_shader_state *state)
91 {
92 struct llvm_vertex_shader *vs = CALLOC_STRUCT( llvm_vertex_shader );
93
94 if (!vs)
95 return NULL;
96
97 /* due to some bugs in the feedback state tracker we have to check
98 for ir.nir & PIPE_SHADER_IR_NIR here. */
99 if (state->ir.nir && state->type == PIPE_SHADER_IR_NIR) {
100 vs->base.state.ir.nir = state->ir.nir;
101 nir_shader *nir = (nir_shader *)state->ir.nir;
102 if (!nir->options->lower_uniforms_to_ubo)
103 NIR_PASS_V(state->ir.nir, nir_lower_uniforms_to_ubo, false, false);
104 nir_tgsi_scan_shader(state->ir.nir, &vs->base.info, true);
105 } else {
106 /* we make a private copy of the tokens */
107 vs->base.state.tokens = tgsi_dup_tokens(state->tokens);
108 if (!vs->base.state.tokens) {
109 FREE(vs);
110 return NULL;
111 }
112
113 tgsi_scan_shader(state->tokens, &vs->base.info);
114 }
115
116 vs->variant_key_size =
117 draw_llvm_variant_key_size(
118 vs->base.info.file_max[TGSI_FILE_INPUT]+1,
119 MAX2(vs->base.info.file_max[TGSI_FILE_SAMPLER]+1,
120 vs->base.info.file_max[TGSI_FILE_SAMPLER_VIEW]+1),
121 vs->base.info.file_max[TGSI_FILE_IMAGE]+1);
122
123 vs->base.state.type = state->type;
124 vs->base.state.stream_output = state->stream_output;
125 vs->base.draw = draw;
126 vs->base.prepare = vs_llvm_prepare;
127 vs->base.run_linear = vs_llvm_run_linear;
128 vs->base.delete = vs_llvm_delete;
129 vs->base.create_variant = draw_vs_create_variant_generic;
130
131 make_empty_list(&vs->variants);
132
133 return &vs->base;
134 }
135