1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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 TUNGSTEN GRAPHICS 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.
26 **************************************************************************/
31 * Keith Whitwell <keith@tungstengraphics.com>
35 #include "pipe/p_util.h"
36 #include "pipe/p_shader_tokens.h"
37 #include "draw_private.h"
38 #include "draw_context.h"
41 #include "tgsi/util/tgsi_parse.h"
45 #include "gallivm/gallivm.h"
47 struct draw_llvm_vertex_shader
{
48 struct draw_vertex_shader base
;
49 struct gallivm_prog
*llvm_prog
;
50 struct tgsi_exec_machine
*machine
;
55 vs_llvm_prepare( struct draw_vertex_shader
*base
,
56 struct draw_context
*draw
)
58 draw_update_vertex_fetch( draw
);
65 vs_llvm_run_linear( struct draw_vertex_shader
*base
,
66 const float (*input
)[4],
68 const float (*constants
)[4],
70 unsigned input_stride
,
71 unsigned output_stride
)
73 struct draw_llvm_vertex_shader
*shader
=
74 (struct draw_llvm_vertex_shader
*)base
;
76 struct tgsi_exec_machine
*machine
= shader
->machine
;
80 for (i
= 0; i
< count
; i
+= MAX_TGSI_VERTICES
) {
81 unsigned int max_vertices
= MIN2(MAX_TGSI_VERTICES
, count
- i
);
85 for (j
= 0; j
< max_vertices
; j
++) {
86 for (slot
= 0; slot
< draw
->num_vs_inputs
; slot
++) {
87 machine
->Inputs
[slot
].xyzw
[0].f
[j
] = input
[slot
][0];
88 machine
->Inputs
[slot
].xyzw
[1].f
[j
] = input
[slot
][1];
89 machine
->Inputs
[slot
].xyzw
[2].f
[j
] = input
[slot
][2];
90 machine
->Inputs
[slot
].xyzw
[3].f
[j
] = input
[slot
][3];
93 input
= (const float (*)[4])((const char *)input
+ input_stride
);
97 gallivm_cpu_vs_exec(shader
->llvm_prog
,
100 (float (*)[4]) constants
,
104 /* Unswizzle all output results
106 for (slot
= 1; slot
< draw
->num_vs_outputs
; slot
++) {
107 output
[slot
][0] = machine
->Outputs
[slot
].xyzw
[0].f
[j
];
108 output
[slot
][1] = machine
->Outputs
[slot
].xyzw
[1].f
[j
];
109 output
[slot
][2] = machine
->Outputs
[slot
].xyzw
[2].f
[j
];
110 output
[slot
][3] = machine
->Outputs
[slot
].xyzw
[3].f
[j
];
112 output
= (float (*)[4])((char *)output
+ output_stride
);
120 vs_llvm_delete( struct draw_vertex_shader
*base
)
122 struct draw_llvm_vertex_shader
*shader
=
123 (struct draw_llvm_vertex_shader
*)base
;
125 /* Do something to free compiled shader:
128 FREE( (void*) shader
->base
.state
.tokens
);
135 struct draw_vertex_shader
*
136 draw_create_vs_llvm(struct draw_context
*draw
,
137 const struct pipe_shader_state
*templ
)
139 struct draw_llvm_vertex_shader
*vs
;
140 uint nt
= tgsi_num_tokens(templ
->tokens
);
142 vs
= CALLOC_STRUCT( draw_llvm_vertex_shader
);
146 /* we make a private copy of the tokens */
147 vs
->base
.state
.tokens
= mem_dup(templ
->tokens
, nt
* sizeof(templ
->tokens
[0]));
149 tgsi_scan_shader(shader
->tokens
, &vs
->base
.info
);
151 vs
->base
.prepare
= vs_llvm_prepare
;
152 vs
->base
.run_linear
= vs_llvm_run_linear
;
153 vs
->base
.delete = vs_llvm_delete
;
154 vs
->machine
= &draw
->machine
;
157 struct gallivm_ir
*ir
= gallivm_ir_new(GALLIVM_VS
);
158 gallivm_ir_set_layout(ir
, GALLIVM_SOA
);
159 gallivm_ir_set_components(ir
, 4);
160 gallivm_ir_fill_from_tgsi(ir
, vs
->base
.state
->tokens
);
161 vs
->llvm_prog
= gallivm_ir_compile(ir
);
162 gallivm_ir_delete(ir
);
165 draw
->engine
= gallivm_global_cpu_engine();
167 /* XXX: Why are there two versions of this? Shouldn't creating the
168 * engine be a separate operation to compiling a shader?
171 draw
->engine
= gallivm_cpu_engine_create(vs
->llvm_prog
);
174 gallivm_cpu_jit_compile(draw
->engine
, vs
->llvm_prog
);
186 struct draw_vertex_shader
*
187 draw_create_vs_llvm(struct draw_context
*draw
,
188 const struct pipe_shader_state
*shader
)