1 /**************************************************************************
3 * Copyright 2010 VMware, Inc.
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 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.
26 **************************************************************************/
28 #include "draw_llvm.h"
30 #include "draw_context.h"
34 #include "gallivm/lp_bld_arit.h"
35 #include "gallivm/lp_bld_arit_overflow.h"
36 #include "gallivm/lp_bld_bitarit.h"
37 #include "gallivm/lp_bld_gather.h"
38 #include "gallivm/lp_bld_logic.h"
39 #include "gallivm/lp_bld_const.h"
40 #include "gallivm/lp_bld_swizzle.h"
41 #include "gallivm/lp_bld_struct.h"
42 #include "gallivm/lp_bld_type.h"
43 #include "gallivm/lp_bld_flow.h"
44 #include "gallivm/lp_bld_debug.h"
45 #include "gallivm/lp_bld_tgsi.h"
46 #include "gallivm/lp_bld_printf.h"
47 #include "gallivm/lp_bld_intr.h"
48 #include "gallivm/lp_bld_init.h"
49 #include "gallivm/lp_bld_type.h"
50 #include "gallivm/lp_bld_pack.h"
51 #include "gallivm/lp_bld_format.h"
53 #include "tgsi/tgsi_exec.h"
54 #include "tgsi/tgsi_dump.h"
56 #include "util/u_math.h"
57 #include "util/u_pointer.h"
58 #include "util/u_string.h"
59 #include "util/simple_list.h"
66 draw_llvm_generate(struct draw_llvm
*llvm
, struct draw_llvm_variant
*var
);
69 struct draw_gs_llvm_iface
{
70 struct lp_build_tgsi_gs_iface base
;
72 struct draw_gs_llvm_variant
*variant
;
76 static inline const struct draw_gs_llvm_iface
*
77 draw_gs_llvm_iface(const struct lp_build_tgsi_gs_iface
*iface
)
79 return (const struct draw_gs_llvm_iface
*)iface
;
83 * Create LLVM type for draw_vertex_buffer.
86 create_jit_dvbuffer_type(struct gallivm_state
*gallivm
,
87 const char *struct_name
)
89 LLVMTargetDataRef target
= gallivm
->target
;
90 LLVMTypeRef dvbuffer_type
;
91 LLVMTypeRef elem_types
[DRAW_JIT_DVBUFFER_NUM_FIELDS
];
92 LLVMTypeRef int32_type
= LLVMInt32TypeInContext(gallivm
->context
);
94 elem_types
[DRAW_JIT_DVBUFFER_MAP
] =
95 LLVMPointerType(LLVMIntTypeInContext(gallivm
->context
, 8), 0);
96 elem_types
[DRAW_JIT_DVBUFFER_SIZE
] = int32_type
;
98 dvbuffer_type
= LLVMStructTypeInContext(gallivm
->context
, elem_types
,
99 ARRAY_SIZE(elem_types
), 0);
101 (void) target
; /* silence unused var warning for non-debug build */
102 LP_CHECK_MEMBER_OFFSET(struct draw_vertex_buffer
, map
,
103 target
, dvbuffer_type
,
104 DRAW_JIT_DVBUFFER_MAP
);
105 LP_CHECK_MEMBER_OFFSET(struct draw_vertex_buffer
, size
,
106 target
, dvbuffer_type
,
107 DRAW_JIT_DVBUFFER_SIZE
);
109 return dvbuffer_type
;
113 * Create LLVM type for struct draw_jit_texture
116 create_jit_texture_type(struct gallivm_state
*gallivm
, const char *struct_name
)
118 LLVMTargetDataRef target
= gallivm
->target
;
119 LLVMTypeRef texture_type
;
120 LLVMTypeRef elem_types
[DRAW_JIT_TEXTURE_NUM_FIELDS
];
121 LLVMTypeRef int32_type
= LLVMInt32TypeInContext(gallivm
->context
);
123 elem_types
[DRAW_JIT_TEXTURE_WIDTH
] =
124 elem_types
[DRAW_JIT_TEXTURE_HEIGHT
] =
125 elem_types
[DRAW_JIT_TEXTURE_DEPTH
] =
126 elem_types
[DRAW_JIT_TEXTURE_FIRST_LEVEL
] =
127 elem_types
[DRAW_JIT_TEXTURE_LAST_LEVEL
] = int32_type
;
128 elem_types
[DRAW_JIT_TEXTURE_BASE
] =
129 LLVMPointerType(LLVMInt8TypeInContext(gallivm
->context
), 0);
130 elem_types
[DRAW_JIT_TEXTURE_ROW_STRIDE
] =
131 elem_types
[DRAW_JIT_TEXTURE_IMG_STRIDE
] =
132 elem_types
[DRAW_JIT_TEXTURE_MIP_OFFSETS
] =
133 LLVMArrayType(int32_type
, PIPE_MAX_TEXTURE_LEVELS
);
135 texture_type
= LLVMStructTypeInContext(gallivm
->context
, elem_types
,
136 ARRAY_SIZE(elem_types
), 0);
138 (void) target
; /* silence unused var warning for non-debug build */
139 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture
, width
,
140 target
, texture_type
,
141 DRAW_JIT_TEXTURE_WIDTH
);
142 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture
, height
,
143 target
, texture_type
,
144 DRAW_JIT_TEXTURE_HEIGHT
);
145 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture
, depth
,
146 target
, texture_type
,
147 DRAW_JIT_TEXTURE_DEPTH
);
148 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture
, first_level
,
149 target
, texture_type
,
150 DRAW_JIT_TEXTURE_FIRST_LEVEL
);
151 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture
, last_level
,
152 target
, texture_type
,
153 DRAW_JIT_TEXTURE_LAST_LEVEL
);
154 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture
, base
,
155 target
, texture_type
,
156 DRAW_JIT_TEXTURE_BASE
);
157 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture
, row_stride
,
158 target
, texture_type
,
159 DRAW_JIT_TEXTURE_ROW_STRIDE
);
160 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture
, img_stride
,
161 target
, texture_type
,
162 DRAW_JIT_TEXTURE_IMG_STRIDE
);
163 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture
, mip_offsets
,
164 target
, texture_type
,
165 DRAW_JIT_TEXTURE_MIP_OFFSETS
);
167 LP_CHECK_STRUCT_SIZE(struct draw_jit_texture
, target
, texture_type
);
174 * Create LLVM type for struct draw_jit_sampler
177 create_jit_sampler_type(struct gallivm_state
*gallivm
, const char *struct_name
)
179 LLVMTargetDataRef target
= gallivm
->target
;
180 LLVMTypeRef sampler_type
;
181 LLVMTypeRef elem_types
[DRAW_JIT_SAMPLER_NUM_FIELDS
];
183 elem_types
[DRAW_JIT_SAMPLER_MIN_LOD
] =
184 elem_types
[DRAW_JIT_SAMPLER_MAX_LOD
] =
185 elem_types
[DRAW_JIT_SAMPLER_LOD_BIAS
] = LLVMFloatTypeInContext(gallivm
->context
);
186 elem_types
[DRAW_JIT_SAMPLER_BORDER_COLOR
] =
187 LLVMArrayType(LLVMFloatTypeInContext(gallivm
->context
), 4);
189 sampler_type
= LLVMStructTypeInContext(gallivm
->context
, elem_types
,
190 ARRAY_SIZE(elem_types
), 0);
192 (void) target
; /* silence unused var warning for non-debug build */
193 LP_CHECK_MEMBER_OFFSET(struct draw_jit_sampler
, min_lod
,
194 target
, sampler_type
,
195 DRAW_JIT_SAMPLER_MIN_LOD
);
196 LP_CHECK_MEMBER_OFFSET(struct draw_jit_sampler
, max_lod
,
197 target
, sampler_type
,
198 DRAW_JIT_SAMPLER_MAX_LOD
);
199 LP_CHECK_MEMBER_OFFSET(struct draw_jit_sampler
, lod_bias
,
200 target
, sampler_type
,
201 DRAW_JIT_SAMPLER_LOD_BIAS
);
202 LP_CHECK_MEMBER_OFFSET(struct draw_jit_sampler
, border_color
,
203 target
, sampler_type
,
204 DRAW_JIT_SAMPLER_BORDER_COLOR
);
206 LP_CHECK_STRUCT_SIZE(struct draw_jit_sampler
, target
, sampler_type
);
213 * Create LLVM type for struct draw_jit_context
216 create_jit_context_type(struct gallivm_state
*gallivm
,
217 LLVMTypeRef texture_type
, LLVMTypeRef sampler_type
,
218 const char *struct_name
)
220 LLVMTargetDataRef target
= gallivm
->target
;
221 LLVMTypeRef float_type
= LLVMFloatTypeInContext(gallivm
->context
);
222 LLVMTypeRef int_type
= LLVMInt32TypeInContext(gallivm
->context
);
223 LLVMTypeRef elem_types
[DRAW_JIT_CTX_NUM_FIELDS
];
224 LLVMTypeRef context_type
;
226 elem_types
[0] = LLVMArrayType(LLVMPointerType(float_type
, 0), /* vs_constants */
227 LP_MAX_TGSI_CONST_BUFFERS
);
228 elem_types
[1] = LLVMArrayType(int_type
, /* num_vs_constants */
229 LP_MAX_TGSI_CONST_BUFFERS
);
230 elem_types
[2] = LLVMPointerType(LLVMArrayType(LLVMArrayType(float_type
, 4),
231 DRAW_TOTAL_CLIP_PLANES
), 0);
232 elem_types
[3] = LLVMPointerType(float_type
, 0); /* viewports */
233 elem_types
[4] = LLVMArrayType(texture_type
,
234 PIPE_MAX_SHADER_SAMPLER_VIEWS
); /* textures */
235 elem_types
[5] = LLVMArrayType(sampler_type
,
236 PIPE_MAX_SAMPLERS
); /* samplers */
237 context_type
= LLVMStructTypeInContext(gallivm
->context
, elem_types
,
238 ARRAY_SIZE(elem_types
), 0);
240 (void) target
; /* silence unused var warning for non-debug build */
241 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, vs_constants
,
242 target
, context_type
, DRAW_JIT_CTX_CONSTANTS
);
243 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, num_vs_constants
,
244 target
, context_type
, DRAW_JIT_CTX_NUM_CONSTANTS
);
245 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, planes
,
246 target
, context_type
, DRAW_JIT_CTX_PLANES
);
247 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, viewports
,
248 target
, context_type
, DRAW_JIT_CTX_VIEWPORT
);
249 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, textures
,
250 target
, context_type
,
251 DRAW_JIT_CTX_TEXTURES
);
252 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, samplers
,
253 target
, context_type
,
254 DRAW_JIT_CTX_SAMPLERS
);
255 LP_CHECK_STRUCT_SIZE(struct draw_jit_context
,
256 target
, context_type
);
263 * Create LLVM type for struct draw_gs_jit_context
266 create_gs_jit_context_type(struct gallivm_state
*gallivm
,
267 unsigned vector_length
,
268 LLVMTypeRef texture_type
, LLVMTypeRef sampler_type
,
269 const char *struct_name
)
271 LLVMTargetDataRef target
= gallivm
->target
;
272 LLVMTypeRef float_type
= LLVMFloatTypeInContext(gallivm
->context
);
273 LLVMTypeRef int_type
= LLVMInt32TypeInContext(gallivm
->context
);
274 LLVMTypeRef elem_types
[DRAW_GS_JIT_CTX_NUM_FIELDS
];
275 LLVMTypeRef context_type
;
277 elem_types
[0] = LLVMArrayType(LLVMPointerType(float_type
, 0), /* constants */
278 LP_MAX_TGSI_CONST_BUFFERS
);
279 elem_types
[1] = LLVMArrayType(int_type
, /* num_constants */
280 LP_MAX_TGSI_CONST_BUFFERS
);
281 elem_types
[2] = LLVMPointerType(LLVMArrayType(LLVMArrayType(float_type
, 4),
282 DRAW_TOTAL_CLIP_PLANES
), 0);
283 elem_types
[3] = LLVMPointerType(float_type
, 0); /* viewports */
285 elem_types
[4] = LLVMArrayType(texture_type
,
286 PIPE_MAX_SHADER_SAMPLER_VIEWS
); /* textures */
287 elem_types
[5] = LLVMArrayType(sampler_type
,
288 PIPE_MAX_SAMPLERS
); /* samplers */
290 elem_types
[6] = LLVMPointerType(LLVMPointerType(int_type
, 0), 0);
291 elem_types
[7] = LLVMPointerType(LLVMVectorType(int_type
,
293 elem_types
[8] = LLVMPointerType(LLVMVectorType(int_type
,
296 context_type
= LLVMStructTypeInContext(gallivm
->context
, elem_types
,
297 ARRAY_SIZE(elem_types
), 0);
299 (void) target
; /* silence unused var warning for non-debug build */
300 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, constants
,
301 target
, context_type
, DRAW_GS_JIT_CTX_CONSTANTS
);
302 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, num_constants
,
303 target
, context_type
, DRAW_GS_JIT_CTX_NUM_CONSTANTS
);
304 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, planes
,
305 target
, context_type
, DRAW_GS_JIT_CTX_PLANES
);
306 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, viewports
,
307 target
, context_type
, DRAW_GS_JIT_CTX_VIEWPORT
);
308 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, textures
,
309 target
, context_type
,
310 DRAW_GS_JIT_CTX_TEXTURES
);
311 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, samplers
,
312 target
, context_type
,
313 DRAW_GS_JIT_CTX_SAMPLERS
);
314 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, prim_lengths
,
315 target
, context_type
,
316 DRAW_GS_JIT_CTX_PRIM_LENGTHS
);
317 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, emitted_vertices
,
318 target
, context_type
,
319 DRAW_GS_JIT_CTX_EMITTED_VERTICES
);
320 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, emitted_prims
,
321 target
, context_type
,
322 DRAW_GS_JIT_CTX_EMITTED_PRIMS
);
323 LP_CHECK_STRUCT_SIZE(struct draw_gs_jit_context
,
324 target
, context_type
);
331 create_gs_jit_input_type(struct gallivm_state
*gallivm
)
333 LLVMTypeRef float_type
= LLVMFloatTypeInContext(gallivm
->context
);
334 LLVMTypeRef input_array
;
336 input_array
= LLVMVectorType(float_type
, TGSI_NUM_CHANNELS
); /* num primitives */
337 input_array
= LLVMArrayType(input_array
, TGSI_NUM_CHANNELS
); /* num channels */
338 input_array
= LLVMArrayType(input_array
, PIPE_MAX_SHADER_INPUTS
); /* num attrs per vertex */
339 input_array
= LLVMPointerType(input_array
, 0); /* num vertices per prim */
345 * Create LLVM type for struct pipe_vertex_buffer
348 create_jit_vertex_buffer_type(struct gallivm_state
*gallivm
,
349 const char *struct_name
)
351 LLVMTargetDataRef target
= gallivm
->target
;
352 LLVMTypeRef elem_types
[4];
356 elem_types
[1] = LLVMInt32TypeInContext(gallivm
->context
);
358 elem_types
[3] = LLVMPointerType(LLVMInt8TypeInContext(gallivm
->context
), 0);
360 vb_type
= LLVMStructTypeInContext(gallivm
->context
, elem_types
,
361 ARRAY_SIZE(elem_types
), 0);
363 (void) target
; /* silence unused var warning for non-debug build */
364 LP_CHECK_MEMBER_OFFSET(struct pipe_vertex_buffer
, stride
,
366 LP_CHECK_MEMBER_OFFSET(struct pipe_vertex_buffer
, buffer_offset
,
369 LP_CHECK_STRUCT_SIZE(struct pipe_vertex_buffer
, target
, vb_type
);
376 * Create LLVM type for struct vertex_header;
379 create_jit_vertex_header(struct gallivm_state
*gallivm
, int data_elems
)
381 LLVMTargetDataRef target
= gallivm
->target
;
382 LLVMTypeRef elem_types
[3];
383 LLVMTypeRef vertex_header
;
384 char struct_name
[24];
386 util_snprintf(struct_name
, 23, "vertex_header%d", data_elems
);
388 elem_types
[DRAW_JIT_VERTEX_VERTEX_ID
] = LLVMIntTypeInContext(gallivm
->context
, 32);
389 elem_types
[DRAW_JIT_VERTEX_CLIP_POS
] = LLVMArrayType(LLVMFloatTypeInContext(gallivm
->context
), 4);
390 elem_types
[DRAW_JIT_VERTEX_DATA
] = LLVMArrayType(elem_types
[1], data_elems
);
392 vertex_header
= LLVMStructTypeInContext(gallivm
->context
, elem_types
,
393 ARRAY_SIZE(elem_types
), 0);
395 /* these are bit-fields and we can't take address of them
396 LP_CHECK_MEMBER_OFFSET(struct vertex_header, clipmask,
397 target, vertex_header,
398 DRAW_JIT_VERTEX_CLIPMASK);
399 LP_CHECK_MEMBER_OFFSET(struct vertex_header, edgeflag,
400 target, vertex_header,
401 DRAW_JIT_VERTEX_EDGEFLAG);
402 LP_CHECK_MEMBER_OFFSET(struct vertex_header, pad,
403 target, vertex_header,
404 DRAW_JIT_VERTEX_PAD);
405 LP_CHECK_MEMBER_OFFSET(struct vertex_header, vertex_id,
406 target, vertex_header,
407 DRAW_JIT_VERTEX_VERTEX_ID);
409 (void) target
; /* silence unused var warning for non-debug build */
410 LP_CHECK_MEMBER_OFFSET(struct vertex_header
, clip_pos
,
411 target
, vertex_header
,
412 DRAW_JIT_VERTEX_CLIP_POS
);
413 LP_CHECK_MEMBER_OFFSET(struct vertex_header
, data
,
414 target
, vertex_header
,
415 DRAW_JIT_VERTEX_DATA
);
417 assert(LLVMABISizeOfType(target
, vertex_header
) ==
418 offsetof(struct vertex_header
, data
[data_elems
]));
420 return vertex_header
;
425 * Create LLVM types for various structures.
428 create_jit_types(struct draw_llvm_variant
*variant
)
430 struct gallivm_state
*gallivm
= variant
->gallivm
;
431 LLVMTypeRef texture_type
, sampler_type
, context_type
, buffer_type
,
434 texture_type
= create_jit_texture_type(gallivm
, "texture");
435 sampler_type
= create_jit_sampler_type(gallivm
, "sampler");
437 context_type
= create_jit_context_type(gallivm
, texture_type
, sampler_type
,
439 variant
->context_ptr_type
= LLVMPointerType(context_type
, 0);
441 buffer_type
= create_jit_dvbuffer_type(gallivm
, "draw_vertex_buffer");
442 variant
->buffer_ptr_type
= LLVMPointerType(buffer_type
, 0);
444 vb_type
= create_jit_vertex_buffer_type(gallivm
, "pipe_vertex_buffer");
445 variant
->vb_ptr_type
= LLVMPointerType(vb_type
, 0);
450 get_context_ptr_type(struct draw_llvm_variant
*variant
)
452 if (!variant
->context_ptr_type
)
453 create_jit_types(variant
);
454 return variant
->context_ptr_type
;
459 get_buffer_ptr_type(struct draw_llvm_variant
*variant
)
461 if (!variant
->buffer_ptr_type
)
462 create_jit_types(variant
);
463 return variant
->buffer_ptr_type
;
468 get_vb_ptr_type(struct draw_llvm_variant
*variant
)
470 if (!variant
->vb_ptr_type
)
471 create_jit_types(variant
);
472 return variant
->vb_ptr_type
;
476 get_vertex_header_ptr_type(struct draw_llvm_variant
*variant
)
478 if (!variant
->vertex_header_ptr_type
)
479 create_jit_types(variant
);
480 return variant
->vertex_header_ptr_type
;
485 * Create per-context LLVM info.
488 draw_llvm_create(struct draw_context
*draw
, LLVMContextRef context
)
490 struct draw_llvm
*llvm
;
492 if (!lp_build_init())
495 llvm
= CALLOC_STRUCT( draw_llvm
);
501 llvm
->context
= context
;
502 if (!llvm
->context
) {
503 llvm
->context
= LLVMContextCreate();
504 llvm
->context_owned
= true;
509 llvm
->nr_variants
= 0;
510 make_empty_list(&llvm
->vs_variants_list
);
512 llvm
->nr_gs_variants
= 0;
513 make_empty_list(&llvm
->gs_variants_list
);
518 draw_llvm_destroy(llvm
);
524 * Free per-context LLVM info.
527 draw_llvm_destroy(struct draw_llvm
*llvm
)
529 if (llvm
->context_owned
)
530 LLVMContextDispose(llvm
->context
);
531 llvm
->context
= NULL
;
533 /* XXX free other draw_llvm data? */
539 * Create LLVM-generated code for a vertex shader.
541 struct draw_llvm_variant
*
542 draw_llvm_create_variant(struct draw_llvm
*llvm
,
544 const struct draw_llvm_variant_key
*key
)
546 struct draw_llvm_variant
*variant
;
547 struct llvm_vertex_shader
*shader
=
548 llvm_vertex_shader(llvm
->draw
->vs
.vertex_shader
);
549 LLVMTypeRef vertex_header
;
550 char module_name
[64];
552 variant
= MALLOC(sizeof *variant
+
553 shader
->variant_key_size
-
554 sizeof variant
->key
);
558 variant
->llvm
= llvm
;
559 variant
->shader
= shader
;
561 util_snprintf(module_name
, sizeof(module_name
), "draw_llvm_vs_variant%u",
562 variant
->shader
->variants_cached
);
564 variant
->gallivm
= gallivm_create(module_name
, llvm
->context
);
566 create_jit_types(variant
);
568 memcpy(&variant
->key
, key
, shader
->variant_key_size
);
570 if (gallivm_debug
& (GALLIVM_DEBUG_TGSI
| GALLIVM_DEBUG_IR
)) {
571 tgsi_dump(llvm
->draw
->vs
.vertex_shader
->state
.tokens
, 0);
572 draw_llvm_dump_variant_key(&variant
->key
);
575 vertex_header
= create_jit_vertex_header(variant
->gallivm
, num_inputs
);
577 variant
->vertex_header_ptr_type
= LLVMPointerType(vertex_header
, 0);
579 draw_llvm_generate(llvm
, variant
);
581 gallivm_compile_module(variant
->gallivm
);
583 variant
->jit_func
= (draw_jit_vert_func
)
584 gallivm_jit_function(variant
->gallivm
, variant
->function
);
586 gallivm_free_ir(variant
->gallivm
);
588 variant
->list_item_global
.base
= variant
;
589 variant
->list_item_local
.base
= variant
;
590 /*variant->no = */shader
->variants_created
++;
591 variant
->list_item_global
.base
= variant
;
598 generate_vs(struct draw_llvm_variant
*variant
,
599 LLVMBuilderRef builder
,
600 struct lp_type vs_type
,
601 LLVMValueRef (*outputs
)[TGSI_NUM_CHANNELS
],
602 const LLVMValueRef (*inputs
)[TGSI_NUM_CHANNELS
],
603 const struct lp_bld_tgsi_system_values
*system_values
,
604 LLVMValueRef context_ptr
,
605 struct lp_build_sampler_soa
*draw_sampler
,
606 boolean clamp_vertex_color
)
608 struct draw_llvm
*llvm
= variant
->llvm
;
609 const struct tgsi_token
*tokens
= llvm
->draw
->vs
.vertex_shader
->state
.tokens
;
610 LLVMValueRef consts_ptr
=
611 draw_jit_context_vs_constants(variant
->gallivm
, context_ptr
);
612 LLVMValueRef num_consts_ptr
=
613 draw_jit_context_num_vs_constants(variant
->gallivm
, context_ptr
);
615 lp_build_tgsi_soa(variant
->gallivm
,
618 NULL
/*struct lp_build_mask_context *mask*/,
627 &llvm
->draw
->vs
.vertex_shader
->info
,
632 unsigned chan
, attrib
;
633 struct lp_build_context bld
;
634 struct tgsi_shader_info
* info
= &llvm
->draw
->vs
.vertex_shader
->info
;
635 lp_build_context_init(&bld
, variant
->gallivm
, vs_type
);
637 for (attrib
= 0; attrib
< info
->num_outputs
; ++attrib
) {
638 for (chan
= 0; chan
< TGSI_NUM_CHANNELS
; ++chan
) {
639 if (outputs
[attrib
][chan
]) {
640 switch (info
->output_semantic_name
[attrib
]) {
641 case TGSI_SEMANTIC_COLOR
:
642 case TGSI_SEMANTIC_BCOLOR
:
643 if (clamp_vertex_color
) {
644 out
= LLVMBuildLoad(builder
, outputs
[attrib
][chan
], "");
645 out
= lp_build_clamp(&bld
, out
, bld
.zero
, bld
.one
);
646 LLVMBuildStore(builder
, out
, outputs
[attrib
][chan
]);
658 fetch_instanced(struct gallivm_state
*gallivm
,
659 const struct util_format_description
*format_desc
,
660 struct lp_type vs_type
,
661 LLVMValueRef vb_stride
,
662 LLVMValueRef map_ptr
,
663 LLVMValueRef buffer_size_adj
,
664 LLVMValueRef
*inputs
,
667 LLVMTypeRef i32_t
= LLVMInt32TypeInContext(gallivm
->context
);
668 LLVMTypeRef aosf_t
, aosi_t
;
669 LLVMValueRef zero
= LLVMConstNull(i32_t
);
670 LLVMBuilderRef builder
= gallivm
->builder
;
671 LLVMValueRef stride
, buffer_overflowed
, aos
, index_valid
;
674 aosf_t
= lp_build_vec_type(gallivm
, lp_float32_vec4_type());
675 aosi_t
= lp_build_vec_type(gallivm
, lp_int32_vec4_type());
677 /* This mul can overflow. Wraparound is ok. */
678 stride
= LLVMBuildMul(builder
, vb_stride
, index
, "");
680 buffer_overflowed
= LLVMBuildICmp(builder
, LLVMIntUGE
,
681 stride
, buffer_size_adj
,
682 "buffer_overflowed");
685 lp_build_print_value(gallivm
, " instance index = ", index
);
686 lp_build_print_value(gallivm
, " buffer overflowed = ", buffer_overflowed
);
689 index_valid
= LLVMBuildNot(builder
, buffer_overflowed
, "");
690 index_valid
= LLVMBuildSExt(builder
, index_valid
, i32_t
, "");
691 stride
= LLVMBuildAnd(builder
, stride
, index_valid
, "");
693 aos
= lp_build_fetch_rgba_aos(gallivm
,
695 lp_float32_vec4_type(),
701 index_valid
= lp_build_broadcast(gallivm
, aosi_t
, index_valid
);
702 aos
= LLVMBuildBitCast(builder
, aos
, aosi_t
, "");
703 aos
= LLVMBuildAnd(builder
, aos
, index_valid
, "");
704 aos
= LLVMBuildBitCast(builder
, aos
, aosf_t
, "");
706 for (i
= 0; i
< TGSI_NUM_CHANNELS
; i
++) {
707 LLVMValueRef index
= lp_build_const_int32(gallivm
, i
);
708 inputs
[i
] = lp_build_extract_broadcast(gallivm
,
709 lp_float32_vec4_type(),
710 vs_type
, aos
, index
);
716 fetch_vector(struct gallivm_state
*gallivm
,
717 const struct util_format_description
*format_desc
,
718 struct lp_type vs_type
,
719 LLVMValueRef vb_stride
,
720 LLVMValueRef map_ptr
,
721 LLVMValueRef buffer_size_adj
,
722 LLVMValueRef
*inputs
,
723 LLVMValueRef indices
)
725 LLVMBuilderRef builder
= gallivm
->builder
;
726 struct lp_build_context blduivec
;
727 struct lp_type fetch_type
= vs_type
;
728 LLVMValueRef offset
, valid_mask
;
731 lp_build_context_init(&blduivec
, gallivm
, lp_uint_type(vs_type
));
733 vb_stride
= lp_build_broadcast_scalar(&blduivec
, vb_stride
);
734 buffer_size_adj
= lp_build_broadcast_scalar(&blduivec
, buffer_size_adj
);
736 /* This mul can overflow. Wraparound is ok. */
737 offset
= lp_build_mul(&blduivec
, vb_stride
, indices
);
739 valid_mask
= lp_build_compare(gallivm
, blduivec
.type
,
740 PIPE_FUNC_LESS
, offset
, buffer_size_adj
);
742 /* not valid elements use offset 0 */
743 offset
= LLVMBuildAnd(builder
, offset
, valid_mask
, "");
746 lp_build_print_value(gallivm
, " indices = ", indices
);
747 lp_build_print_value(gallivm
, " offsets = ", offset
);
748 lp_build_print_value(gallivm
, " valid_mask = ", valid_mask
);
752 * Unlike fetch_instanced, use SoA fetch instead of multiple AoS fetches.
753 * This should always produce better code.
756 /* The type handling is annoying here... */
757 if (format_desc
->colorspace
== UTIL_FORMAT_COLORSPACE_RGB
&&
758 format_desc
->channel
[0].pure_integer
) {
759 if (format_desc
->channel
[0].type
== UTIL_FORMAT_TYPE_SIGNED
) {
760 fetch_type
= lp_type_int_vec(vs_type
.width
, vs_type
.width
* vs_type
.length
);
762 else if (format_desc
->channel
[0].type
== UTIL_FORMAT_TYPE_UNSIGNED
) {
763 fetch_type
= lp_type_uint_vec(vs_type
.width
, vs_type
.width
* vs_type
.length
);
767 lp_build_fetch_rgba_soa(gallivm
, format_desc
,
768 fetch_type
, FALSE
, map_ptr
, offset
,
769 blduivec
.zero
, blduivec
.zero
,
772 for (i
= 0; i
< TGSI_NUM_CHANNELS
; i
++) {
773 inputs
[i
] = LLVMBuildBitCast(builder
, inputs
[i
],
774 lp_build_vec_type(gallivm
, vs_type
), "");
777 /* out-of-bound fetches return all zeros */
778 for (i
= 0; i
< TGSI_NUM_CHANNELS
; i
++) {
779 inputs
[i
] = LLVMBuildBitCast(builder
, inputs
[i
], blduivec
.vec_type
, "");
780 inputs
[i
] = LLVMBuildAnd(builder
, inputs
[i
], valid_mask
, "");
781 inputs
[i
] = LLVMBuildBitCast(builder
, inputs
[i
],
782 lp_build_vec_type(gallivm
, vs_type
), "");
788 store_aos(struct gallivm_state
*gallivm
,
793 LLVMTypeRef data_ptr_type
= LLVMPointerType(lp_build_vec_type(gallivm
, lp_float32_vec4_type()), 0);
794 LLVMBuilderRef builder
= gallivm
->builder
;
795 LLVMValueRef data_ptr
= draw_jit_header_data(gallivm
, io_ptr
);
796 LLVMValueRef indices
[3];
798 indices
[0] = lp_build_const_int32(gallivm
, 0);
800 indices
[2] = lp_build_const_int32(gallivm
, 0);
802 data_ptr
= LLVMBuildGEP(builder
, data_ptr
, indices
, 3, "");
803 data_ptr
= LLVMBuildPointerCast(builder
, data_ptr
, data_ptr_type
, "");
806 lp_build_printf(gallivm
, " ---- %p storing attribute %d (io = %p)\n", data_ptr
, index
, io_ptr
);
809 /* Unaligned store due to the vertex header */
810 LLVMSetAlignment(LLVMBuildStore(builder
, value
, data_ptr
), sizeof(float));
814 * Adjust the mask to architecture endianess. The mask will the store in struct:
816 * struct vertex_header {
817 * unsigned clipmask:DRAW_TOTAL_CLIP_PLANES;
818 * unsigned edgeflag:1;
820 * unsigned vertex_id:16;
824 * On little-endian machine nothing needs to done, however on bit-endian machine
825 * the mask's fields need to be adjusted with the algorithm:
827 * uint32_t reverse (uint32_t x)
829 * return (x >> 16) | // vertex_id
830 * ((x & 0x3fff) << 18) | // clipmask
831 * ((x & 0x4000) << 3) | // pad
832 * ((x & 0x8000) << 1); // edgeflag
836 adjust_mask(struct gallivm_state
*gallivm
,
839 #ifdef PIPE_ARCH_BIG_ENDIAN
840 LLVMBuilderRef builder
= gallivm
->builder
;
841 LLVMValueRef vertex_id
;
842 LLVMValueRef clipmask
;
844 LLVMValueRef edgeflag
;
846 vertex_id
= LLVMBuildLShr(builder
, mask
, lp_build_const_int32(gallivm
, 16), "");
847 clipmask
= LLVMBuildAnd(builder
, mask
, lp_build_const_int32(gallivm
, 0x3fff), "");
848 clipmask
= LLVMBuildShl(builder
, clipmask
, lp_build_const_int32(gallivm
, 18), "");
850 pad
= LLVMBuildAnd(builder
, mask
, lp_build_const_int32(gallivm
, 0x4000), "");
851 pad
= LLVMBuildShl(builder
, pad
, lp_build_const_int32(gallivm
, 3), "");
853 edgeflag
= LLVMBuildAnd(builder
, mask
, lp_build_const_int32(gallivm
, 0x8000), "");
854 edgeflag
= LLVMBuildShl(builder
, edgeflag
, lp_build_const_int32(gallivm
, 1), "");
856 mask
= LLVMBuildOr(builder
, vertex_id
, clipmask
, "");
858 mask
= LLVMBuildOr(builder
, mask
, pad
, "");
860 mask
= LLVMBuildOr(builder
, mask
, edgeflag
, "");
866 store_aos_array(struct gallivm_state
*gallivm
,
867 struct lp_type soa_type
,
869 LLVMValueRef
*indices
,
873 LLVMValueRef clipmask
,
874 boolean need_edgeflag
)
876 LLVMBuilderRef builder
= gallivm
->builder
;
877 LLVMValueRef attr_index
= lp_build_const_int32(gallivm
, attrib
);
878 LLVMValueRef inds
[LP_MAX_VECTOR_WIDTH
/ 32];
879 LLVMValueRef linear_inds
[LP_MAX_VECTOR_WIDTH
/ 32];
880 LLVMValueRef io_ptrs
[LP_MAX_VECTOR_WIDTH
/ 32];
881 int vector_length
= soa_type
.length
;
884 debug_assert(TGSI_NUM_CHANNELS
== 4);
886 for (i
= 0; i
< vector_length
; i
++) {
887 linear_inds
[i
] = lp_build_const_int32(gallivm
, i
);
889 inds
[i
] = indices
[i
];
891 inds
[i
] = linear_inds
[i
];
893 io_ptrs
[i
] = LLVMBuildGEP(builder
, io_ptr
, &inds
[i
], 1, "");
897 /* store vertex header for each of the n vertices */
898 LLVMValueRef val
, cliptmp
;
899 int vertex_id_pad_edgeflag
;
901 /* If this assertion fails, it means we need to update the bit twidding
902 * code here. See struct vertex_header in draw_private.h.
904 assert(DRAW_TOTAL_CLIP_PLANES
==14);
905 /* initialize vertex id:16 = 0xffff, pad:1 = 0, edgeflag:1 = 1 */
906 if (!need_edgeflag
) {
907 vertex_id_pad_edgeflag
= (0xffff << 16) | (1 << DRAW_TOTAL_CLIP_PLANES
);
910 vertex_id_pad_edgeflag
= (0xffff << 16);
912 val
= lp_build_const_int_vec(gallivm
, lp_int_type(soa_type
),
913 vertex_id_pad_edgeflag
);
914 /* OR with the clipmask */
915 cliptmp
= LLVMBuildOr(builder
, val
, clipmask
, "");
916 for (i
= 0; i
< vector_length
; i
++) {
917 LLVMValueRef id_ptr
= draw_jit_header_id(gallivm
, io_ptrs
[i
]);
918 val
= LLVMBuildExtractElement(builder
, cliptmp
, linear_inds
[i
], "");
919 val
= adjust_mask(gallivm
, val
);
921 lp_build_printf(gallivm
, "io = %p, index %d, clipmask = %x\n",
922 io_ptrs
[i
], inds
[i
], val
);
924 LLVMBuildStore(builder
, val
, id_ptr
);
928 /* store for each of the n vertices */
929 for (i
= 0; i
< vector_length
; i
++) {
930 store_aos(gallivm
, io_ptrs
[i
], attr_index
, aos
[i
]);
936 convert_to_aos(struct gallivm_state
*gallivm
,
938 LLVMValueRef
*indices
,
939 LLVMValueRef (*outputs
)[TGSI_NUM_CHANNELS
],
940 LLVMValueRef clipmask
,
942 struct lp_type soa_type
,
943 boolean need_edgeflag
)
945 LLVMBuilderRef builder
= gallivm
->builder
;
946 unsigned chan
, attrib
, i
;
949 lp_build_printf(gallivm
, " # storing begin\n");
951 for (attrib
= 0; attrib
< num_outputs
; ++attrib
) {
952 LLVMValueRef soa
[TGSI_NUM_CHANNELS
];
953 LLVMValueRef aos
[LP_MAX_VECTOR_WIDTH
/ 32];
954 for (chan
= 0; chan
< TGSI_NUM_CHANNELS
; ++chan
) {
955 if (outputs
[attrib
][chan
]) {
956 LLVMValueRef out
= LLVMBuildLoad(builder
, outputs
[attrib
][chan
], "");
957 lp_build_name(out
, "output%u.%c", attrib
, "xyzw"[chan
]);
959 lp_build_printf(gallivm
, "output %d : %d ",
960 LLVMConstInt(LLVMInt32TypeInContext(gallivm
->context
),
962 LLVMConstInt(LLVMInt32TypeInContext(gallivm
->context
),
964 lp_build_print_value(gallivm
, "val = ", out
);
967 LLVMBuildBitCast(builder
, out
, lp_build_int_vec_type(gallivm
, soa_type
), "");
969 lp_build_print_value(gallivm
, " ival = ", iv
);
980 if (soa_type
.length
== TGSI_NUM_CHANNELS
) {
981 lp_build_transpose_aos(gallivm
, soa_type
, soa
, aos
);
983 lp_build_transpose_aos(gallivm
, soa_type
, soa
, soa
);
985 for (i
= 0; i
< soa_type
.length
; ++i
) {
986 aos
[i
] = lp_build_extract_range(gallivm
,
987 soa
[i
% TGSI_NUM_CHANNELS
],
988 (i
/ TGSI_NUM_CHANNELS
) * TGSI_NUM_CHANNELS
,
993 store_aos_array(gallivm
,
1003 lp_build_printf(gallivm
, " # storing end\n");
1009 * Stores original vertex positions in clip coordinates
1012 store_clip(struct gallivm_state
*gallivm
,
1013 const struct lp_type vs_type
,
1014 LLVMValueRef io_ptr
,
1015 LLVMValueRef (*outputs
)[TGSI_NUM_CHANNELS
],
1018 LLVMBuilderRef builder
= gallivm
->builder
;
1019 LLVMValueRef soa
[4];
1020 LLVMValueRef aos
[LP_MAX_VECTOR_LENGTH
];
1021 LLVMValueRef indices
[2];
1022 LLVMValueRef io_ptrs
[LP_MAX_VECTOR_WIDTH
/ 32];
1023 LLVMValueRef inds
[LP_MAX_VECTOR_WIDTH
/ 32];
1024 LLVMValueRef clip_ptrs
[LP_MAX_VECTOR_WIDTH
/ 32];
1025 LLVMTypeRef clip_ptr_type
=
1026 LLVMPointerType(LLVMVectorType(LLVMFloatTypeInContext(gallivm
->context
),
1031 indices
[1] = lp_build_const_int32(gallivm
, 0);
1033 for (i
= 0; i
< vs_type
.length
; i
++) {
1034 inds
[i
] = lp_build_const_int32(gallivm
, i
);
1035 io_ptrs
[i
] = LLVMBuildGEP(builder
, io_ptr
, &inds
[i
], 1, "");
1038 soa
[0] = LLVMBuildLoad(builder
, outputs
[idx
][0], ""); /*x0 x1 .. xn*/
1039 soa
[1] = LLVMBuildLoad(builder
, outputs
[idx
][1], ""); /*y0 y1 .. yn*/
1040 soa
[2] = LLVMBuildLoad(builder
, outputs
[idx
][2], ""); /*z0 z1 .. zn*/
1041 soa
[3] = LLVMBuildLoad(builder
, outputs
[idx
][3], ""); /*w0 w1 .. wn*/
1043 for (i
= 0; i
< vs_type
.length
; i
++) {
1044 clip_ptrs
[i
] = draw_jit_header_clip_pos(gallivm
, io_ptrs
[i
]);
1047 lp_build_transpose_aos(gallivm
, vs_type
, soa
, soa
);
1048 for (i
= 0; i
< vs_type
.length
; ++i
) {
1049 aos
[i
] = lp_build_extract_range(gallivm
,
1050 soa
[i
% TGSI_NUM_CHANNELS
],
1051 (i
/ TGSI_NUM_CHANNELS
) * TGSI_NUM_CHANNELS
,
1055 for (j
= 0; j
< vs_type
.length
; j
++) {
1056 LLVMValueRef clip_ptr
;
1058 clip_ptr
= LLVMBuildGEP(builder
, clip_ptrs
[j
], indices
, 2, "clipo");
1059 clip_ptr
= LLVMBuildPointerCast(builder
, clip_ptr
, clip_ptr_type
, "");
1061 /* Unaligned store */
1062 LLVMSetAlignment(LLVMBuildStore(builder
, aos
[j
], clip_ptr
), sizeof(float));
1068 * Transforms the outputs for viewport mapping
1071 generate_viewport(struct draw_llvm_variant
*variant
,
1072 LLVMBuilderRef builder
,
1073 struct lp_type vs_type
,
1074 LLVMValueRef (*outputs
)[TGSI_NUM_CHANNELS
],
1075 LLVMValueRef context_ptr
)
1078 struct gallivm_state
*gallivm
= variant
->gallivm
;
1079 struct lp_type f32_type
= vs_type
;
1080 const unsigned pos
= variant
->llvm
->draw
->vs
.position_output
;
1081 LLVMTypeRef vs_type_llvm
= lp_build_vec_type(gallivm
, vs_type
);
1082 LLVMValueRef out3
= LLVMBuildLoad(builder
, outputs
[pos
][3], ""); /*w0 w1 .. wn*/
1083 LLVMValueRef const1
= lp_build_const_vec(gallivm
, f32_type
, 1.0); /*1.0 1.0 1.0 1.0*/
1084 LLVMValueRef vp_ptr
= draw_jit_context_viewports(gallivm
, context_ptr
);
1086 /* We treat pipe_viewport_state as a float array */
1087 const int scale_index_offset
= offsetof(struct pipe_viewport_state
, scale
) / sizeof(float);
1088 const int trans_index_offset
= offsetof(struct pipe_viewport_state
, translate
) / sizeof(float);
1090 /* for 1/w convention*/
1091 out3
= LLVMBuildFDiv(builder
, const1
, out3
, "");
1092 LLVMBuildStore(builder
, out3
, outputs
[pos
][3]);
1094 /* Viewport Mapping */
1095 for (i
=0; i
<3; i
++) {
1096 LLVMValueRef out
= LLVMBuildLoad(builder
, outputs
[pos
][i
], ""); /*x0 x1 .. xn*/
1099 LLVMValueRef scale_i
;
1100 LLVMValueRef trans_i
;
1103 index
= lp_build_const_int32(gallivm
, i
+ scale_index_offset
);
1104 scale_i
= LLVMBuildGEP(builder
, vp_ptr
, &index
, 1, "");
1106 index
= lp_build_const_int32(gallivm
, i
+ trans_index_offset
);
1107 trans_i
= LLVMBuildGEP(builder
, vp_ptr
, &index
, 1, "");
1109 scale
= lp_build_broadcast(gallivm
, vs_type_llvm
,
1110 LLVMBuildLoad(builder
, scale_i
, "scale"));
1111 trans
= lp_build_broadcast(gallivm
, vs_type_llvm
,
1112 LLVMBuildLoad(builder
, trans_i
, "trans"));
1115 out
= LLVMBuildFMul(builder
, out
, out3
, "");
1116 /* mult by scale, add translation */
1117 out
= lp_build_fmuladd(builder
, out
, scale
, trans
);
1119 /* store transformed outputs */
1120 LLVMBuildStore(builder
, out
, outputs
[pos
][i
]);
1127 * Returns clipmask as nxi32 bitmask for the n vertices
1130 generate_clipmask(struct draw_llvm
*llvm
,
1131 struct gallivm_state
*gallivm
,
1132 struct lp_type vs_type
,
1133 LLVMValueRef (*outputs
)[TGSI_NUM_CHANNELS
],
1134 struct draw_llvm_variant_key
*key
,
1135 LLVMValueRef context_ptr
,
1136 boolean
*have_clipdist
)
1138 LLVMBuilderRef builder
= gallivm
->builder
;
1139 LLVMValueRef mask
; /* stores the <nxi32> clipmasks */
1140 LLVMValueRef test
, temp
;
1141 LLVMValueRef zero
, shift
;
1142 LLVMValueRef pos_x
, pos_y
, pos_z
, pos_w
;
1143 LLVMValueRef cv_x
, cv_y
, cv_z
, cv_w
;
1144 LLVMValueRef plane1
, planes
, plane_ptr
, sum
;
1145 struct lp_type f32_type
= vs_type
;
1146 struct lp_type i32_type
= lp_int_type(vs_type
);
1147 const unsigned pos
= llvm
->draw
->vs
.position_output
;
1148 const unsigned cv
= llvm
->draw
->vs
.clipvertex_output
;
1149 int num_written_clipdistance
= llvm
->draw
->vs
.vertex_shader
->info
.num_written_clipdistance
;
1150 boolean have_cd
= false;
1151 boolean clip_user
= key
->clip_user
;
1152 unsigned ucp_enable
= key
->ucp_enable
;
1155 cd
[0] = llvm
->draw
->vs
.ccdistance_output
[0];
1156 cd
[1] = llvm
->draw
->vs
.ccdistance_output
[1];
1158 if (cd
[0] != pos
|| cd
[1] != pos
)
1161 if (num_written_clipdistance
&& !clip_user
) {
1163 ucp_enable
= (1 << num_written_clipdistance
) - 1;
1166 mask
= lp_build_const_int_vec(gallivm
, i32_type
, 0);
1167 temp
= lp_build_const_int_vec(gallivm
, i32_type
, 0);
1168 zero
= lp_build_const_vec(gallivm
, f32_type
, 0); /* 0.0f 0.0f 0.0f 0.0f */
1169 shift
= lp_build_const_int_vec(gallivm
, i32_type
, 1); /* 1 1 1 1 */
1172 * load clipvertex and position from correct locations.
1173 * if they are the same just load them once.
1175 pos_x
= LLVMBuildLoad(builder
, outputs
[pos
][0], ""); /*x0 x1 .. xn */
1176 pos_y
= LLVMBuildLoad(builder
, outputs
[pos
][1], ""); /*y0 y1 .. yn */
1177 pos_z
= LLVMBuildLoad(builder
, outputs
[pos
][2], ""); /*z0 z1 .. zn */
1178 pos_w
= LLVMBuildLoad(builder
, outputs
[pos
][3], ""); /*w0 w1 .. wn */
1180 if (clip_user
&& cv
!= pos
) {
1181 cv_x
= LLVMBuildLoad(builder
, outputs
[cv
][0], ""); /*x0 x1 .. xn */
1182 cv_y
= LLVMBuildLoad(builder
, outputs
[cv
][1], ""); /*y0 y1 .. yn */
1183 cv_z
= LLVMBuildLoad(builder
, outputs
[cv
][2], ""); /*z0 z1 .. zn */
1184 cv_w
= LLVMBuildLoad(builder
, outputs
[cv
][3], ""); /*w0 w1 .. wn */
1193 * Be careful with the comparisons and NaNs (using llvm's unordered
1194 * comparisons here).
1196 /* Cliptest, for hardwired planes */
1198 * XXX should take guardband into account (currently not in key).
1199 * Otherwise might run the draw pipeline stages for nothing.
1203 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, pos_x
, pos_w
);
1205 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1209 test
= LLVMBuildFAdd(builder
, pos_x
, pos_w
, "");
1210 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, zero
, test
);
1211 temp
= LLVMBuildShl(builder
, temp
, shift
, "");
1212 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1213 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1216 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, pos_y
, pos_w
);
1217 temp
= LLVMBuildShl(builder
, temp
, shift
, "");
1218 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1219 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1222 test
= LLVMBuildFAdd(builder
, pos_y
, pos_w
, "");
1223 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, zero
, test
);
1224 temp
= LLVMBuildShl(builder
, temp
, shift
, "");
1225 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1226 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1230 temp
= lp_build_const_int_vec(gallivm
, i32_type
, 16);
1231 if (key
->clip_halfz
) {
1233 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, zero
, pos_z
);
1234 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1235 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1239 test
= LLVMBuildFAdd(builder
, pos_z
, pos_w
, "");
1240 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, zero
, test
);
1241 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1242 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1245 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, pos_z
, pos_w
);
1246 temp
= LLVMBuildShl(builder
, temp
, shift
, "");
1247 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1248 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1252 LLVMValueRef planes_ptr
= draw_jit_context_planes(gallivm
, context_ptr
);
1253 LLVMValueRef indices
[3];
1254 LLVMValueRef is_nan_or_inf
;
1256 /* userclip planes */
1257 while (ucp_enable
) {
1258 unsigned plane_idx
= ffs(ucp_enable
)-1;
1259 ucp_enable
&= ~(1 << plane_idx
);
1262 if (have_cd
&& num_written_clipdistance
) {
1263 LLVMValueRef clipdist
;
1267 *have_clipdist
= TRUE
;
1269 clipdist
= LLVMBuildLoad(builder
, outputs
[cd
[0]][i
], "");
1271 clipdist
= LLVMBuildLoad(builder
, outputs
[cd
[1]][i
-4], "");
1273 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, zero
, clipdist
);
1274 is_nan_or_inf
= lp_build_is_inf_or_nan(gallivm
, vs_type
, clipdist
);
1275 test
= LLVMBuildOr(builder
, test
, is_nan_or_inf
, "");
1276 temp
= lp_build_const_int_vec(gallivm
, i32_type
, 1LL << plane_idx
);
1277 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1278 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1280 LLVMTypeRef vs_type_llvm
= lp_build_vec_type(gallivm
, vs_type
);
1281 indices
[0] = lp_build_const_int32(gallivm
, 0);
1282 indices
[1] = lp_build_const_int32(gallivm
, plane_idx
);
1284 indices
[2] = lp_build_const_int32(gallivm
, 0);
1285 plane_ptr
= LLVMBuildGEP(builder
, planes_ptr
, indices
, 3, "");
1286 plane1
= LLVMBuildLoad(builder
, plane_ptr
, "plane_x");
1287 planes
= lp_build_broadcast(gallivm
, vs_type_llvm
, plane1
);
1288 sum
= LLVMBuildFMul(builder
, planes
, cv_x
, "");
1290 indices
[2] = lp_build_const_int32(gallivm
, 1);
1291 plane_ptr
= LLVMBuildGEP(builder
, planes_ptr
, indices
, 3, "");
1292 plane1
= LLVMBuildLoad(builder
, plane_ptr
, "plane_y");
1293 planes
= lp_build_broadcast(gallivm
, vs_type_llvm
, plane1
);
1294 sum
= lp_build_fmuladd(builder
, planes
, cv_y
, sum
);
1296 indices
[2] = lp_build_const_int32(gallivm
, 2);
1297 plane_ptr
= LLVMBuildGEP(builder
, planes_ptr
, indices
, 3, "");
1298 plane1
= LLVMBuildLoad(builder
, plane_ptr
, "plane_z");
1299 planes
= lp_build_broadcast(gallivm
, vs_type_llvm
, plane1
);
1300 sum
= lp_build_fmuladd(builder
, planes
, cv_z
, sum
);
1302 indices
[2] = lp_build_const_int32(gallivm
, 3);
1303 plane_ptr
= LLVMBuildGEP(builder
, planes_ptr
, indices
, 3, "");
1304 plane1
= LLVMBuildLoad(builder
, plane_ptr
, "plane_w");
1305 planes
= lp_build_broadcast(gallivm
, vs_type_llvm
, plane1
);
1306 sum
= lp_build_fmuladd(builder
, planes
, cv_w
, sum
);
1308 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, zero
, sum
);
1309 temp
= lp_build_const_int_vec(gallivm
, i32_type
, 1LL << plane_idx
);
1310 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1311 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1315 if (key
->need_edgeflags
) {
1317 * This isn't really part of clipmask but stored the same in vertex
1318 * header later, so do it here.
1320 unsigned edge_attr
= llvm
->draw
->vs
.edgeflag_output
;
1321 LLVMValueRef one
= lp_build_const_vec(gallivm
, f32_type
, 1.0);
1322 LLVMValueRef edgeflag
= LLVMBuildLoad(builder
, outputs
[edge_attr
][0], "");
1323 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_EQUAL
, one
, edgeflag
);
1324 temp
= lp_build_const_int_vec(gallivm
, i32_type
,
1325 1LL << DRAW_TOTAL_CLIP_PLANES
);
1326 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1327 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1334 * Returns boolean if any clipping has occurred
1335 * Used zero/one i8 value to represent boolean
1338 clipmask_booli8(struct gallivm_state
*gallivm
,
1339 const struct lp_type vs_type
,
1340 LLVMValueRef clipmask_bool_ptr
,
1341 boolean edgeflag_in_clipmask
)
1343 LLVMBuilderRef builder
= gallivm
->builder
;
1344 LLVMTypeRef int8_type
= LLVMInt8TypeInContext(gallivm
->context
);
1345 LLVMValueRef clipmask_bool
= LLVMBuildLoad(builder
, clipmask_bool_ptr
, "");
1347 struct lp_build_context bldivec
;
1349 lp_build_context_init(&bldivec
, gallivm
, lp_int_type(vs_type
));
1352 * We need to invert the edgeflag bit from the clipmask here
1353 * (because the result is really if we want to run the pipeline or not
1354 * and we (may) need it if edgeflag was 0).
1356 if (edgeflag_in_clipmask
) {
1357 LLVMValueRef edge
= lp_build_const_int_vec(gallivm
, bldivec
.type
,
1358 1LL << DRAW_TOTAL_CLIP_PLANES
);
1359 clipmask_bool
= LLVMBuildXor(builder
, clipmask_bool
, edge
, "");
1363 * XXX: probably should mask off bits from the mask which come from
1364 * vertices which were beyond the count (i.e. indices_valid for
1365 * linear fetches, for elts ones we don't have the correct mask
1366 * right now). Otherwise might run the pipeline for nothing,
1367 * though everything should still work.
1369 ret
= lp_build_any_true_range(&bldivec
, vs_type
.length
, clipmask_bool
);
1370 ret
= LLVMBuildZExt(builder
, ret
, int8_type
, "");
1375 draw_gs_llvm_fetch_input(const struct lp_build_tgsi_gs_iface
*gs_iface
,
1376 struct lp_build_tgsi_context
* bld_base
,
1377 boolean is_vindex_indirect
,
1378 LLVMValueRef vertex_index
,
1379 boolean is_aindex_indirect
,
1380 LLVMValueRef attrib_index
,
1381 LLVMValueRef swizzle_index
)
1383 const struct draw_gs_llvm_iface
*gs
= draw_gs_llvm_iface(gs_iface
);
1384 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
1385 LLVMBuilderRef builder
= gallivm
->builder
;
1386 LLVMValueRef indices
[3];
1388 struct lp_type type
= bld_base
->base
.type
;
1390 if (is_vindex_indirect
|| is_aindex_indirect
) {
1392 res
= bld_base
->base
.zero
;
1393 for (i
= 0; i
< type
.length
; ++i
) {
1394 LLVMValueRef idx
= lp_build_const_int32(gallivm
, i
);
1395 LLVMValueRef vert_chan_index
= vertex_index
;
1396 LLVMValueRef attr_chan_index
= attrib_index
;
1397 LLVMValueRef channel_vec
, value
;
1399 if (is_vindex_indirect
) {
1400 vert_chan_index
= LLVMBuildExtractElement(builder
,
1401 vertex_index
, idx
, "");
1403 if (is_aindex_indirect
) {
1404 attr_chan_index
= LLVMBuildExtractElement(builder
,
1405 attrib_index
, idx
, "");
1408 indices
[0] = vert_chan_index
;
1409 indices
[1] = attr_chan_index
;
1410 indices
[2] = swizzle_index
;
1412 channel_vec
= LLVMBuildGEP(builder
, gs
->input
, indices
, 3, "");
1413 channel_vec
= LLVMBuildLoad(builder
, channel_vec
, "");
1414 value
= LLVMBuildExtractElement(builder
, channel_vec
, idx
, "");
1416 res
= LLVMBuildInsertElement(builder
, res
, value
, idx
, "");
1419 indices
[0] = vertex_index
;
1420 indices
[1] = attrib_index
;
1421 indices
[2] = swizzle_index
;
1423 res
= LLVMBuildGEP(builder
, gs
->input
, indices
, 3, "");
1424 res
= LLVMBuildLoad(builder
, res
, "");
1431 draw_gs_llvm_emit_vertex(const struct lp_build_tgsi_gs_iface
*gs_base
,
1432 struct lp_build_tgsi_context
* bld_base
,
1433 LLVMValueRef (*outputs
)[4],
1434 LLVMValueRef emitted_vertices_vec
)
1436 const struct draw_gs_llvm_iface
*gs_iface
= draw_gs_llvm_iface(gs_base
);
1437 struct draw_gs_llvm_variant
*variant
= gs_iface
->variant
;
1438 struct gallivm_state
*gallivm
= variant
->gallivm
;
1439 LLVMBuilderRef builder
= gallivm
->builder
;
1440 struct lp_type gs_type
= bld_base
->base
.type
;
1441 LLVMValueRef clipmask
= lp_build_const_int_vec(gallivm
,
1442 lp_int_type(gs_type
), 0);
1443 LLVMValueRef indices
[LP_MAX_VECTOR_LENGTH
];
1444 LLVMValueRef next_prim_offset
=
1445 lp_build_const_int32(gallivm
, variant
->shader
->base
.primitive_boundary
);
1446 LLVMValueRef io
= variant
->io_ptr
;
1448 const struct tgsi_shader_info
*gs_info
= &variant
->shader
->base
.info
;
1450 for (i
= 0; i
< gs_type
.length
; ++i
) {
1451 LLVMValueRef ind
= lp_build_const_int32(gallivm
, i
);
1452 LLVMValueRef currently_emitted
=
1453 LLVMBuildExtractElement(builder
, emitted_vertices_vec
, ind
, "");
1454 indices
[i
] = LLVMBuildMul(builder
, ind
, next_prim_offset
, "");
1455 indices
[i
] = LLVMBuildAdd(builder
, indices
[i
], currently_emitted
, "");
1458 convert_to_aos(gallivm
, io
, indices
,
1460 gs_info
->num_outputs
, gs_type
,
1465 draw_gs_llvm_end_primitive(const struct lp_build_tgsi_gs_iface
*gs_base
,
1466 struct lp_build_tgsi_context
* bld_base
,
1467 LLVMValueRef verts_per_prim_vec
,
1468 LLVMValueRef emitted_prims_vec
)
1470 const struct draw_gs_llvm_iface
*gs_iface
= draw_gs_llvm_iface(gs_base
);
1471 struct draw_gs_llvm_variant
*variant
= gs_iface
->variant
;
1472 struct gallivm_state
*gallivm
= variant
->gallivm
;
1473 LLVMBuilderRef builder
= gallivm
->builder
;
1474 LLVMValueRef prim_lengts_ptr
=
1475 draw_gs_jit_prim_lengths(variant
->gallivm
, variant
->context_ptr
);
1478 for (i
= 0; i
< bld_base
->base
.type
.length
; ++i
) {
1479 LLVMValueRef ind
= lp_build_const_int32(gallivm
, i
);
1480 LLVMValueRef prims_emitted
=
1481 LLVMBuildExtractElement(builder
, emitted_prims_vec
, ind
, "");
1482 LLVMValueRef store_ptr
;
1483 LLVMValueRef num_vertices
=
1484 LLVMBuildExtractElement(builder
, verts_per_prim_vec
, ind
, "");
1486 store_ptr
= LLVMBuildGEP(builder
, prim_lengts_ptr
, &prims_emitted
, 1, "");
1487 store_ptr
= LLVMBuildLoad(builder
, store_ptr
, "");
1488 store_ptr
= LLVMBuildGEP(builder
, store_ptr
, &ind
, 1, "");
1489 LLVMBuildStore(builder
, num_vertices
, store_ptr
);
1494 draw_gs_llvm_epilogue(const struct lp_build_tgsi_gs_iface
*gs_base
,
1495 struct lp_build_tgsi_context
* bld_base
,
1496 LLVMValueRef total_emitted_vertices_vec
,
1497 LLVMValueRef emitted_prims_vec
)
1499 const struct draw_gs_llvm_iface
*gs_iface
= draw_gs_llvm_iface(gs_base
);
1500 struct draw_gs_llvm_variant
*variant
= gs_iface
->variant
;
1501 struct gallivm_state
*gallivm
= variant
->gallivm
;
1502 LLVMBuilderRef builder
= gallivm
->builder
;
1503 LLVMValueRef emitted_verts_ptr
=
1504 draw_gs_jit_emitted_vertices(gallivm
, variant
->context_ptr
);
1505 LLVMValueRef emitted_prims_ptr
=
1506 draw_gs_jit_emitted_prims(gallivm
, variant
->context_ptr
);
1507 LLVMValueRef zero
= lp_build_const_int32(gallivm
, 0);
1509 emitted_verts_ptr
= LLVMBuildGEP(builder
, emitted_verts_ptr
, &zero
, 0, "");
1510 emitted_prims_ptr
= LLVMBuildGEP(builder
, emitted_prims_ptr
, &zero
, 0, "");
1512 LLVMBuildStore(builder
, total_emitted_vertices_vec
, emitted_verts_ptr
);
1513 LLVMBuildStore(builder
, emitted_prims_vec
, emitted_prims_ptr
);
1517 draw_llvm_generate(struct draw_llvm
*llvm
, struct draw_llvm_variant
*variant
)
1519 struct gallivm_state
*gallivm
= variant
->gallivm
;
1520 LLVMContextRef context
= gallivm
->context
;
1521 LLVMTypeRef int32_type
= LLVMInt32TypeInContext(context
);
1522 LLVMTypeRef arg_types
[11];
1523 unsigned num_arg_types
= ARRAY_SIZE(arg_types
);
1524 LLVMTypeRef func_type
;
1525 LLVMValueRef context_ptr
;
1526 LLVMBasicBlockRef block
;
1527 LLVMBuilderRef builder
;
1529 struct lp_type vs_type
;
1530 LLVMValueRef count
, fetch_elts
, start_or_maxelt
;
1531 LLVMValueRef vertex_id_offset
, start_instance
;
1532 LLVMValueRef stride
, step
, io_itr
;
1533 LLVMValueRef ind_vec
, start_vec
, have_elts
, fetch_max
, tmp
;
1534 LLVMValueRef io_ptr
, vbuffers_ptr
, vb_ptr
;
1535 LLVMValueRef vb_stride
[PIPE_MAX_ATTRIBS
];
1536 LLVMValueRef map_ptr
[PIPE_MAX_ATTRIBS
];
1537 LLVMValueRef buffer_size_adj
[PIPE_MAX_ATTRIBS
];
1538 LLVMValueRef instance_index
[PIPE_MAX_ATTRIBS
];
1539 LLVMValueRef fake_buf_ptr
, fake_buf
;
1541 struct draw_context
*draw
= llvm
->draw
;
1542 const struct tgsi_shader_info
*vs_info
= &draw
->vs
.vertex_shader
->info
;
1544 struct lp_build_context bld
, blduivec
;
1545 struct lp_build_loop_state lp_loop
;
1546 struct lp_build_if_state if_ctx
;
1547 const int vector_length
= lp_native_vector_width
/ 32;
1548 LLVMValueRef outputs
[PIPE_MAX_SHADER_OUTPUTS
][TGSI_NUM_CHANNELS
];
1549 struct lp_build_sampler_soa
*sampler
= 0;
1550 LLVMValueRef ret
, clipmask_bool_ptr
;
1551 struct draw_llvm_variant_key
*key
= &variant
->key
;
1552 /* If geometry shader is present we need to skip both the viewport
1553 * transformation and clipping otherwise the inputs to the geometry
1554 * shader will be incorrect.
1555 * The code can't handle vp transform when vs writes vp index neither
1556 * (though this would be fixable here, but couldn't just broadcast
1559 const boolean bypass_viewport
= key
->has_gs
|| key
->bypass_viewport
||
1560 vs_info
->writes_viewport_index
;
1561 const boolean enable_cliptest
= !key
->has_gs
&& (key
->clip_xy
||
1564 key
->need_edgeflags
);
1565 LLVMValueRef variant_func
;
1566 const unsigned pos
= draw
->vs
.position_output
;
1567 const unsigned cv
= draw
->vs
.clipvertex_output
;
1568 boolean have_clipdist
= FALSE
;
1569 struct lp_bld_tgsi_system_values system_values
;
1571 memset(&system_values
, 0, sizeof(system_values
));
1573 util_snprintf(func_name
, sizeof(func_name
), "draw_llvm_vs_variant%u",
1574 variant
->shader
->variants_cached
);
1577 arg_types
[i
++] = get_context_ptr_type(variant
); /* context */
1578 arg_types
[i
++] = get_vertex_header_ptr_type(variant
); /* vertex_header */
1579 arg_types
[i
++] = get_buffer_ptr_type(variant
); /* vbuffers */
1580 arg_types
[i
++] = int32_type
; /* count */
1581 arg_types
[i
++] = int32_type
; /* start/fetch_elt_max */
1582 arg_types
[i
++] = int32_type
; /* stride */
1583 arg_types
[i
++] = get_vb_ptr_type(variant
); /* pipe_vertex_buffer's */
1584 arg_types
[i
++] = int32_type
; /* instance_id */
1585 arg_types
[i
++] = int32_type
; /* vertex_id_offset */
1586 arg_types
[i
++] = int32_type
; /* start_instance */
1587 arg_types
[i
++] = LLVMPointerType(int32_type
, 0); /* fetch_elts */
1589 func_type
= LLVMFunctionType(LLVMInt8TypeInContext(context
),
1590 arg_types
, num_arg_types
, 0);
1592 variant_func
= LLVMAddFunction(gallivm
->module
, func_name
, func_type
);
1593 variant
->function
= variant_func
;
1595 LLVMSetFunctionCallConv(variant_func
, LLVMCCallConv
);
1596 for (i
= 0; i
< num_arg_types
; ++i
)
1597 if (LLVMGetTypeKind(arg_types
[i
]) == LLVMPointerTypeKind
)
1598 lp_add_function_attr(variant_func
, i
+ 1, LP_FUNC_ATTR_NOALIAS
);
1600 context_ptr
= LLVMGetParam(variant_func
, 0);
1601 io_ptr
= LLVMGetParam(variant_func
, 1);
1602 vbuffers_ptr
= LLVMGetParam(variant_func
, 2);
1603 count
= LLVMGetParam(variant_func
, 3);
1605 * XXX: the maxelt part is unused. Not really useful, since we cannot
1606 * get index buffer overflows due to vsplit (which provides its own
1607 * elts buffer, with a different size than what's passed in here).
1609 start_or_maxelt
= LLVMGetParam(variant_func
, 4);
1611 * XXX: stride is actually unused. The stride we use is strictly calculated
1612 * from the number of outputs (including the draw_extra outputs).
1613 * Should probably fix some day (we need a new vs just because of extra
1614 * outputs which the generated vs won't touch).
1616 stride
= LLVMGetParam(variant_func
, 5);
1617 vb_ptr
= LLVMGetParam(variant_func
, 6);
1618 system_values
.instance_id
= LLVMGetParam(variant_func
, 7);
1619 vertex_id_offset
= LLVMGetParam(variant_func
, 8);
1620 start_instance
= LLVMGetParam(variant_func
, 9);
1621 fetch_elts
= LLVMGetParam(variant_func
, 10);
1623 lp_build_name(context_ptr
, "context");
1624 lp_build_name(io_ptr
, "io");
1625 lp_build_name(vbuffers_ptr
, "vbuffers");
1626 lp_build_name(count
, "count");
1627 lp_build_name(start_or_maxelt
, "start_or_maxelt");
1628 lp_build_name(stride
, "stride");
1629 lp_build_name(vb_ptr
, "vb");
1630 lp_build_name(system_values
.instance_id
, "instance_id");
1631 lp_build_name(vertex_id_offset
, "vertex_id_offset");
1632 lp_build_name(start_instance
, "start_instance");
1633 lp_build_name(fetch_elts
, "fetch_elts");
1639 block
= LLVMAppendBasicBlockInContext(gallivm
->context
, variant_func
, "entry");
1640 builder
= gallivm
->builder
;
1641 LLVMPositionBuilderAtEnd(builder
, block
);
1643 memset(&vs_type
, 0, sizeof vs_type
);
1644 vs_type
.floating
= TRUE
; /* floating point values */
1645 vs_type
.sign
= TRUE
; /* values are signed */
1646 vs_type
.norm
= FALSE
; /* values are not limited to [0,1] or [-1,1] */
1647 vs_type
.width
= 32; /* 32-bit float */
1648 vs_type
.length
= vector_length
;
1650 lp_build_context_init(&bld
, gallivm
, lp_type_uint(32));
1651 lp_build_context_init(&blduivec
, gallivm
, lp_uint_type(vs_type
));
1653 /* hold temporary "bool" clipmask */
1654 clipmask_bool_ptr
= lp_build_alloca(gallivm
, blduivec
.vec_type
, "");
1656 fake_buf
= lp_build_alloca_undef(gallivm
,
1657 LLVMVectorType(LLVMInt64TypeInContext(context
), 4), "");
1658 fake_buf
= LLVMBuildBitCast(builder
, fake_buf
,
1659 LLVMPointerType(LLVMInt8TypeInContext(context
), 0), "");
1660 fake_buf_ptr
= LLVMBuildGEP(builder
, fake_buf
, &bld
.zero
, 1, "");
1662 /* code generated texture sampling */
1663 sampler
= draw_llvm_sampler_soa_create(draw_llvm_variant_key_samplers(key
));
1665 step
= lp_build_const_int32(gallivm
, vector_length
);
1667 ind_vec
= blduivec
.undef
;
1668 for (i
= 0; i
< vs_type
.length
; i
++) {
1669 LLVMValueRef index
= lp_build_const_int32(gallivm
, i
);
1670 ind_vec
= LLVMBuildInsertElement(builder
, ind_vec
, index
, index
, "");
1673 fetch_max
= lp_build_alloca(gallivm
, int32_type
, "fetch_max");
1675 have_elts
= LLVMBuildICmp(builder
, LLVMIntNE
,
1676 LLVMConstPointerNull(arg_types
[10]), fetch_elts
, "");
1678 fetch_max
= LLVMBuildSub(builder
, count
, bld
.one
, "fetch_max");
1679 fetch_max
= lp_build_broadcast_scalar(&blduivec
, fetch_max
);
1681 * Only needed for non-indexed path.
1683 start_vec
= lp_build_broadcast_scalar(&blduivec
, start_or_maxelt
);
1686 * Pre-calculate everything which is constant per shader invocation.
1688 for (j
= 0; j
< key
->nr_vertex_elements
; ++j
) {
1689 LLVMValueRef vb_buffer_offset
, buffer_size
, temp_ptr
;
1690 LLVMValueRef vb_info
, vbuffer_ptr
, buf_offset
, ofbit
;
1691 struct pipe_vertex_element
*velem
= &key
->vertex_element
[j
];
1692 LLVMValueRef vb_index
=
1693 lp_build_const_int32(gallivm
, velem
->vertex_buffer_index
);
1694 LLVMValueRef bsize
= lp_build_const_int32(gallivm
,
1695 util_format_get_blocksize(velem
->src_format
));
1696 LLVMValueRef src_offset
= lp_build_const_int32(gallivm
,
1698 struct lp_build_if_state if_ctx
;
1700 if (velem
->src_format
!= PIPE_FORMAT_NONE
) {
1701 vbuffer_ptr
= LLVMBuildGEP(builder
, vbuffers_ptr
, &vb_index
, 1, "");
1702 vb_info
= LLVMBuildGEP(builder
, vb_ptr
, &vb_index
, 1, "");
1703 vb_stride
[j
] = draw_jit_vbuffer_stride(gallivm
, vb_info
);
1704 vb_buffer_offset
= draw_jit_vbuffer_offset(gallivm
, vb_info
);
1705 map_ptr
[j
] = draw_jit_dvbuffer_map(gallivm
, vbuffer_ptr
);
1706 buffer_size
= draw_jit_dvbuffer_size(gallivm
, vbuffer_ptr
);
1710 * We'll set buffer_size_adj to zero if we have of, so it will
1711 * always overflow later automatically without having to keep ofbit.
1712 * Overflows (with normal wraparound) doing the actual offset
1713 * calculation should be ok, just not for the buffer size calc.
1714 * It would also be possible to detect such overflows and return
1715 * zeros if that happens, but this would be more complex.
1717 buf_offset
= lp_build_add(&bld
, vb_buffer_offset
, src_offset
);
1718 tmp
= lp_build_sub(&bld
, bsize
, bld
.one
);
1719 buffer_size_adj
[j
] = lp_build_usub_overflow(gallivm
, buffer_size
, tmp
,
1721 buffer_size_adj
[j
] = lp_build_usub_overflow(gallivm
, buffer_size_adj
[j
],
1722 buf_offset
, &ofbit
);
1725 * We can't easily set fake vertex buffers outside the generated code.
1726 * Hence, set fake vertex buffers here instead basically, so fetch
1727 * code can always fetch using offset 0, eliminating all control flow
1728 * inside the main loop.
1729 * (Alternatively, could have control flow per vector skipping fetch
1730 * if ofbit is true.)
1732 if (velem
->instance_divisor
) {
1734 * Index is equal to the start instance plus the number of current
1735 * instance divided by the divisor. In this case we compute it as:
1736 * index = start_instance + (instance_id / divisor).
1737 * Note we could actually do the fetch here, outside the loop -
1738 * it's all constant, hopefully llvm recognizes this.
1740 LLVMValueRef current_instance
;
1741 current_instance
= LLVMBuildUDiv(builder
, system_values
.instance_id
,
1742 lp_build_const_int32(gallivm
,
1743 velem
->instance_divisor
),
1744 "instance_divisor");
1745 instance_index
[j
] = lp_build_uadd_overflow(gallivm
, start_instance
,
1746 current_instance
, &ofbit
);
1749 buffer_size_adj
[j
] = LLVMBuildSelect(builder
, ofbit
, bld
.zero
,
1750 buffer_size_adj
[j
], "");
1752 temp_ptr
= lp_build_alloca_undef(gallivm
,
1753 LLVMPointerType(LLVMInt8TypeInContext(context
), 0), "");
1755 lp_build_if(&if_ctx
, gallivm
, ofbit
);
1757 LLVMBuildStore(builder
, fake_buf_ptr
, temp_ptr
);
1759 lp_build_else(&if_ctx
);
1761 map_ptr
[j
] = LLVMBuildGEP(builder
, map_ptr
[j
], &buf_offset
, 1, "");
1762 LLVMBuildStore(builder
, map_ptr
[j
], temp_ptr
);
1764 lp_build_endif(&if_ctx
);
1765 map_ptr
[j
] = LLVMBuildLoad(builder
, temp_ptr
, "map_ptr");
1768 lp_build_printf(gallivm
, "velem %d, vbuf index = %u, vb_stride = %u\n",
1769 lp_build_const_int32(gallivm
, j
),
1770 vb_index
, vb_stride
[j
]);
1771 lp_build_printf(gallivm
,
1772 " vb_buffer_offset = %u, src_offset = %u, buf_offset = %u\n",
1773 vb_buffer_offset
, src_offset
, buf_offset
);
1774 lp_build_printf(gallivm
, " buffer size = %u, blocksize = %u\n",
1775 buffer_size
, bsize
);
1776 lp_build_printf(gallivm
, " instance_id = %u\n", system_values
.instance_id
);
1781 lp_build_loop_begin(&lp_loop
, gallivm
, bld
.zero
);
1783 LLVMValueRef inputs
[PIPE_MAX_SHADER_INPUTS
][TGSI_NUM_CHANNELS
];
1785 LLVMValueRef clipmask
; /* holds the clipmask value */
1786 LLVMValueRef true_index_array
, index_store
;
1787 const LLVMValueRef (*ptr_aos
)[TGSI_NUM_CHANNELS
];
1789 io_itr
= lp_loop
.counter
;
1791 io
= LLVMBuildGEP(builder
, io_ptr
, &io_itr
, 1, "");
1793 lp_build_printf(gallivm
, " --- io %d = %p, loop counter %d\n",
1794 io_itr
, io
, lp_loop
.counter
);
1797 true_index_array
= lp_build_broadcast_scalar(&blduivec
, lp_loop
.counter
);
1798 true_index_array
= LLVMBuildAdd(builder
, true_index_array
, ind_vec
, "");
1801 * Limit indices to fetch_max, otherwise might try to access indices
1802 * beyond index buffer (or rather vsplit elt buffer) size.
1803 * Could probably safely (?) skip this for non-indexed draws and
1804 * simplify things minimally (by removing it could combine the ind_vec
1805 * and start_vec adds). I think the only effect for non-indexed draws will
1806 * be that for the invalid elements they will be all fetched from the
1807 * same location as the last valid one, but noone should really care.
1809 true_index_array
= lp_build_min(&blduivec
, true_index_array
, fetch_max
);
1811 index_store
= lp_build_alloca_undef(gallivm
, blduivec
.vec_type
, "index_store");
1813 lp_build_if(&if_ctx
, gallivm
, have_elts
);
1816 * Note: you'd expect some comparison/clamp against fetch_elt_max
1818 * There used to be one here but it was incorrect: overflow was
1819 * detected if index > fetch_elt_max - but the correct condition
1820 * would be index >= fetch_elt_max (since this is just size of elts
1821 * buffer / element size).
1822 * Using the correct condition however will cause failures - due to
1823 * vsplit/vcache code which rebases indices. So, as an example, if
1824 * fetch_elt_max is just 1 and fetch_count 2, vsplit cache will
1825 * replace all invalid indices with 0 - which in case of elt_bias
1826 * not being zero will get a different fetch index than the valid
1827 * index 0. So, just rely on vsplit code preventing out-of-bounds
1828 * fetches. This is also why it's safe to do elts fetch even if there
1829 * was no index buffer bound - the real buffer is never seen here, at
1830 * least not if there are index buffer overflows...
1834 * XXX should not have to do this, as scale can be handled
1835 * natively by loads (hits asserts though).
1837 tmp
= lp_build_shl_imm(&blduivec
, true_index_array
, 2);
1838 fetch_elts
= LLVMBuildBitCast(builder
, fetch_elts
,
1839 LLVMPointerType(LLVMInt8TypeInContext(context
),
1841 tmp
= lp_build_gather(gallivm
, vs_type
.length
,
1843 fetch_elts
, tmp
, FALSE
);
1844 LLVMBuildStore(builder
, tmp
, index_store
);
1846 lp_build_else(&if_ctx
);
1848 tmp
= LLVMBuildAdd(builder
, true_index_array
, start_vec
, "");
1849 LLVMBuildStore(builder
, tmp
, index_store
);
1851 lp_build_endif(&if_ctx
);
1853 true_index_array
= LLVMBuildLoad(builder
, index_store
, "");
1855 for (j
= 0; j
< key
->nr_vertex_elements
; ++j
) {
1856 struct pipe_vertex_element
*velem
= &key
->vertex_element
[j
];
1857 const struct util_format_description
*format_desc
=
1858 util_format_description(velem
->src_format
);
1860 if (format_desc
->format
== PIPE_FORMAT_NONE
) {
1861 for (i
= 0; i
< TGSI_NUM_CHANNELS
; i
++) {
1862 inputs
[j
][i
] = lp_build_zero(gallivm
, vs_type
);
1865 else if (velem
->instance_divisor
) {
1866 fetch_instanced(gallivm
, format_desc
, vs_type
,
1867 vb_stride
[j
], map_ptr
[j
],
1869 inputs
[j
], instance_index
[j
]);
1872 fetch_vector(gallivm
, format_desc
, vs_type
,
1873 vb_stride
[j
], map_ptr
[j
],
1875 inputs
[j
], true_index_array
);
1879 /* In the paths with elts vertex id has to be unaffected by the
1880 * index bias and because indices inside our elements array have
1881 * already had index bias applied we need to subtract it here to
1882 * get back to the original index.
1883 * in the linear paths vertex id has to be unaffected by the
1884 * original start index and because we abuse the 'start' variable
1885 * to either represent the actual start index or the index at which
1886 * the primitive was split (we split rendering into chunks of at
1887 * most 4095-vertices) we need to back out the original start
1888 * index out of our vertex id here.
1890 system_values
.basevertex
= lp_build_broadcast_scalar(&blduivec
,
1892 system_values
.vertex_id
= true_index_array
;
1893 system_values
.vertex_id_nobase
= LLVMBuildSub(builder
, true_index_array
,
1894 system_values
.basevertex
, "");
1896 ptr_aos
= (const LLVMValueRef (*)[TGSI_NUM_CHANNELS
]) inputs
;
1897 generate_vs(variant
,
1905 key
->clamp_vertex_color
);
1907 if (pos
!= -1 && cv
!= -1) {
1908 /* store original positions in clip before further manipulation */
1909 store_clip(gallivm
, vs_type
, io
, outputs
, pos
);
1912 if (enable_cliptest
) {
1913 LLVMValueRef temp
= LLVMBuildLoad(builder
, clipmask_bool_ptr
, "");
1914 /* allocate clipmask, assign it integer type */
1915 clipmask
= generate_clipmask(llvm
,
1920 context_ptr
, &have_clipdist
);
1921 temp
= LLVMBuildOr(builder
, clipmask
, temp
, "");
1922 /* store temporary clipping boolean value */
1923 LLVMBuildStore(builder
, temp
, clipmask_bool_ptr
);
1926 clipmask
= blduivec
.zero
;
1929 /* do viewport mapping */
1930 if (!bypass_viewport
) {
1931 generate_viewport(variant
, builder
, vs_type
, outputs
, context_ptr
);
1935 clipmask
= blduivec
.zero
;
1938 /* store clipmask in vertex header,
1939 * original positions in clip
1940 * and transformed positions in data
1942 convert_to_aos(gallivm
, io
, NULL
, outputs
, clipmask
,
1943 vs_info
->num_outputs
, vs_type
,
1944 enable_cliptest
&& key
->need_edgeflags
);
1946 lp_build_loop_end_cond(&lp_loop
, count
, step
, LLVMIntUGE
);
1948 sampler
->destroy(sampler
);
1950 /* return clipping boolean value for function */
1951 ret
= clipmask_booli8(gallivm
, vs_type
, clipmask_bool_ptr
,
1952 enable_cliptest
&& key
->need_edgeflags
);
1954 LLVMBuildRet(builder
, ret
);
1956 gallivm_verify_function(gallivm
, variant_func
);
1960 struct draw_llvm_variant_key
*
1961 draw_llvm_make_variant_key(struct draw_llvm
*llvm
, char *store
)
1964 struct draw_llvm_variant_key
*key
;
1965 struct draw_sampler_static_state
*draw_sampler
;
1967 key
= (struct draw_llvm_variant_key
*)store
;
1969 memset(key
, 0, offsetof(struct draw_llvm_variant_key
, vertex_element
[0]));
1971 key
->clamp_vertex_color
= llvm
->draw
->rasterizer
->clamp_vertex_color
; /**/
1973 /* will have to rig this up properly later */
1974 key
->clip_xy
= llvm
->draw
->clip_xy
;
1975 key
->clip_z
= llvm
->draw
->clip_z
;
1976 key
->clip_user
= llvm
->draw
->clip_user
;
1977 key
->bypass_viewport
= llvm
->draw
->bypass_viewport
;
1978 key
->clip_halfz
= llvm
->draw
->rasterizer
->clip_halfz
;
1979 /* XXX assumes edgeflag output not at 0 */
1980 key
->need_edgeflags
= (llvm
->draw
->vs
.edgeflag_output
? TRUE
: FALSE
);
1981 key
->ucp_enable
= llvm
->draw
->rasterizer
->clip_plane_enable
;
1982 key
->has_gs
= llvm
->draw
->gs
.geometry_shader
!= NULL
;
1983 key
->num_outputs
= draw_total_vs_outputs(llvm
->draw
);
1985 /* All variants of this shader will have the same value for
1986 * nr_samplers. Not yet trying to compact away holes in the
1989 key
->nr_samplers
= llvm
->draw
->vs
.vertex_shader
->info
.file_max
[TGSI_FILE_SAMPLER
] + 1;
1990 if (llvm
->draw
->vs
.vertex_shader
->info
.file_max
[TGSI_FILE_SAMPLER_VIEW
] != -1) {
1991 key
->nr_sampler_views
=
1992 llvm
->draw
->vs
.vertex_shader
->info
.file_max
[TGSI_FILE_SAMPLER_VIEW
] + 1;
1995 key
->nr_sampler_views
= key
->nr_samplers
;
1998 /* Presumably all variants of the shader should have the same
1999 * number of vertex elements - ie the number of shader inputs.
2000 * NOTE: we NEED to store the needed number of needed inputs
2001 * here, not the number of provided elements to match keysize
2002 * (and the offset of sampler state in the key).
2003 * If we have excess number of vertex elements, this is valid,
2004 * but the excess ones don't matter.
2005 * If we don't have enough vertex elements (which looks not really
2006 * valid but we'll handle it gracefully) fill out missing ones with
2007 * zero (we'll recognize these later by PIPE_FORMAT_NONE).
2009 key
->nr_vertex_elements
=
2010 llvm
->draw
->vs
.vertex_shader
->info
.file_max
[TGSI_FILE_INPUT
] + 1;
2012 if (llvm
->draw
->pt
.nr_vertex_elements
< key
->nr_vertex_elements
) {
2013 debug_printf("draw: vs with %d inputs but only have %d vertex elements\n",
2014 key
->nr_vertex_elements
, llvm
->draw
->pt
.nr_vertex_elements
);
2015 memset(key
->vertex_element
, 0,
2016 sizeof(struct pipe_vertex_element
) * key
->nr_vertex_elements
);
2018 memcpy(key
->vertex_element
,
2019 llvm
->draw
->pt
.vertex_element
,
2020 sizeof(struct pipe_vertex_element
) *
2021 MIN2(key
->nr_vertex_elements
, llvm
->draw
->pt
.nr_vertex_elements
));
2023 draw_sampler
= draw_llvm_variant_key_samplers(key
);
2024 memset(draw_sampler
, 0,
2025 MAX2(key
->nr_samplers
, key
->nr_sampler_views
) * sizeof *draw_sampler
);
2027 for (i
= 0 ; i
< key
->nr_samplers
; i
++) {
2028 lp_sampler_static_sampler_state(&draw_sampler
[i
].sampler_state
,
2029 llvm
->draw
->samplers
[PIPE_SHADER_VERTEX
][i
]);
2031 for (i
= 0 ; i
< key
->nr_sampler_views
; i
++) {
2032 lp_sampler_static_texture_state(&draw_sampler
[i
].texture_state
,
2033 llvm
->draw
->sampler_views
[PIPE_SHADER_VERTEX
][i
]);
2041 draw_llvm_dump_variant_key(struct draw_llvm_variant_key
*key
)
2044 struct draw_sampler_static_state
*sampler
= draw_llvm_variant_key_samplers(key
);
2046 debug_printf("clamp_vertex_color = %u\n", key
->clamp_vertex_color
);
2047 debug_printf("clip_xy = %u\n", key
->clip_xy
);
2048 debug_printf("clip_z = %u\n", key
->clip_z
);
2049 debug_printf("clip_user = %u\n", key
->clip_user
);
2050 debug_printf("bypass_viewport = %u\n", key
->bypass_viewport
);
2051 debug_printf("clip_halfz = %u\n", key
->clip_halfz
);
2052 debug_printf("need_edgeflags = %u\n", key
->need_edgeflags
);
2053 debug_printf("has_gs = %u\n", key
->has_gs
);
2054 debug_printf("ucp_enable = %u\n", key
->ucp_enable
);
2056 for (i
= 0 ; i
< key
->nr_vertex_elements
; i
++) {
2057 debug_printf("vertex_element[%i].src_offset = %u\n", i
, key
->vertex_element
[i
].src_offset
);
2058 debug_printf("vertex_element[%i].instance_divisor = %u\n", i
, key
->vertex_element
[i
].instance_divisor
);
2059 debug_printf("vertex_element[%i].vertex_buffer_index = %u\n", i
, key
->vertex_element
[i
].vertex_buffer_index
);
2060 debug_printf("vertex_element[%i].src_format = %s\n", i
, util_format_name(key
->vertex_element
[i
].src_format
));
2063 for (i
= 0 ; i
< key
->nr_sampler_views
; i
++) {
2064 debug_printf("sampler[%i].src_format = %s\n", i
, util_format_name(sampler
[i
].texture_state
.format
));
2070 draw_llvm_set_mapped_texture(struct draw_context
*draw
,
2071 unsigned shader_stage
,
2073 uint32_t width
, uint32_t height
, uint32_t depth
,
2074 uint32_t first_level
, uint32_t last_level
,
2075 const void *base_ptr
,
2076 uint32_t row_stride
[PIPE_MAX_TEXTURE_LEVELS
],
2077 uint32_t img_stride
[PIPE_MAX_TEXTURE_LEVELS
],
2078 uint32_t mip_offsets
[PIPE_MAX_TEXTURE_LEVELS
])
2081 struct draw_jit_texture
*jit_tex
;
2083 assert(shader_stage
== PIPE_SHADER_VERTEX
||
2084 shader_stage
== PIPE_SHADER_GEOMETRY
);
2086 if (shader_stage
== PIPE_SHADER_VERTEX
) {
2087 assert(sview_idx
< ARRAY_SIZE(draw
->llvm
->jit_context
.textures
));
2089 jit_tex
= &draw
->llvm
->jit_context
.textures
[sview_idx
];
2090 } else if (shader_stage
== PIPE_SHADER_GEOMETRY
) {
2091 assert(sview_idx
< ARRAY_SIZE(draw
->llvm
->gs_jit_context
.textures
));
2093 jit_tex
= &draw
->llvm
->gs_jit_context
.textures
[sview_idx
];
2099 jit_tex
->width
= width
;
2100 jit_tex
->height
= height
;
2101 jit_tex
->depth
= depth
;
2102 jit_tex
->first_level
= first_level
;
2103 jit_tex
->last_level
= last_level
;
2104 jit_tex
->base
= base_ptr
;
2106 for (j
= first_level
; j
<= last_level
; j
++) {
2107 jit_tex
->mip_offsets
[j
] = mip_offsets
[j
];
2108 jit_tex
->row_stride
[j
] = row_stride
[j
];
2109 jit_tex
->img_stride
[j
] = img_stride
[j
];
2115 draw_llvm_set_sampler_state(struct draw_context
*draw
,
2116 unsigned shader_type
)
2120 if (shader_type
== PIPE_SHADER_VERTEX
) {
2121 for (i
= 0; i
< draw
->num_samplers
[PIPE_SHADER_VERTEX
]; i
++) {
2122 struct draw_jit_sampler
*jit_sam
= &draw
->llvm
->jit_context
.samplers
[i
];
2124 if (draw
->samplers
[PIPE_SHADER_VERTEX
][i
]) {
2125 const struct pipe_sampler_state
*s
2126 = draw
->samplers
[PIPE_SHADER_VERTEX
][i
];
2127 jit_sam
->min_lod
= s
->min_lod
;
2128 jit_sam
->max_lod
= s
->max_lod
;
2129 jit_sam
->lod_bias
= s
->lod_bias
;
2130 COPY_4V(jit_sam
->border_color
, s
->border_color
.f
);
2133 } else if (shader_type
== PIPE_SHADER_GEOMETRY
) {
2134 for (i
= 0; i
< draw
->num_samplers
[PIPE_SHADER_GEOMETRY
]; i
++) {
2135 struct draw_jit_sampler
*jit_sam
= &draw
->llvm
->gs_jit_context
.samplers
[i
];
2137 if (draw
->samplers
[PIPE_SHADER_GEOMETRY
][i
]) {
2138 const struct pipe_sampler_state
*s
2139 = draw
->samplers
[PIPE_SHADER_GEOMETRY
][i
];
2140 jit_sam
->min_lod
= s
->min_lod
;
2141 jit_sam
->max_lod
= s
->max_lod
;
2142 jit_sam
->lod_bias
= s
->lod_bias
;
2143 COPY_4V(jit_sam
->border_color
, s
->border_color
.f
);
2151 draw_llvm_destroy_variant(struct draw_llvm_variant
*variant
)
2153 struct draw_llvm
*llvm
= variant
->llvm
;
2155 gallivm_destroy(variant
->gallivm
);
2157 remove_from_list(&variant
->list_item_local
);
2158 variant
->shader
->variants_cached
--;
2159 remove_from_list(&variant
->list_item_global
);
2160 llvm
->nr_variants
--;
2166 * Create LLVM types for various structures.
2169 create_gs_jit_types(struct draw_gs_llvm_variant
*var
)
2171 struct gallivm_state
*gallivm
= var
->gallivm
;
2172 LLVMTypeRef texture_type
, sampler_type
, context_type
;
2174 texture_type
= create_jit_texture_type(gallivm
, "texture");
2175 sampler_type
= create_jit_sampler_type(gallivm
, "sampler");
2177 context_type
= create_gs_jit_context_type(gallivm
,
2178 var
->shader
->base
.vector_length
,
2179 texture_type
, sampler_type
,
2180 "draw_gs_jit_context");
2181 var
->context_ptr_type
= LLVMPointerType(context_type
, 0);
2183 var
->input_array_type
= create_gs_jit_input_type(gallivm
);
2187 get_gs_context_ptr_type(struct draw_gs_llvm_variant
*variant
)
2189 if (!variant
->context_ptr_type
)
2190 create_gs_jit_types(variant
);
2191 return variant
->context_ptr_type
;
2195 generate_mask_value(struct draw_gs_llvm_variant
*variant
,
2196 struct lp_type gs_type
)
2198 struct gallivm_state
*gallivm
= variant
->gallivm
;
2199 LLVMBuilderRef builder
= gallivm
->builder
;
2200 struct lp_type mask_type
= lp_int_type(gs_type
);
2201 LLVMValueRef num_prims
;
2202 LLVMValueRef mask_val
= lp_build_const_vec(gallivm
, mask_type
, 0);
2205 num_prims
= lp_build_broadcast(gallivm
, lp_build_vec_type(gallivm
, mask_type
),
2206 variant
->num_prims
);
2207 for (i
= 0; i
< gs_type
.length
; i
++) {
2208 LLVMValueRef idx
= lp_build_const_int32(gallivm
, i
);
2209 mask_val
= LLVMBuildInsertElement(builder
, mask_val
, idx
, idx
, "");
2211 mask_val
= lp_build_compare(gallivm
, mask_type
,
2212 PIPE_FUNC_GREATER
, num_prims
, mask_val
);
2218 draw_gs_llvm_generate(struct draw_llvm
*llvm
,
2219 struct draw_gs_llvm_variant
*variant
)
2221 struct gallivm_state
*gallivm
= variant
->gallivm
;
2222 LLVMContextRef context
= gallivm
->context
;
2223 LLVMTypeRef int32_type
= LLVMInt32TypeInContext(context
);
2224 LLVMTypeRef arg_types
[7];
2225 LLVMTypeRef func_type
;
2226 LLVMValueRef variant_func
;
2227 LLVMValueRef context_ptr
;
2228 LLVMValueRef prim_id_ptr
;
2229 LLVMBasicBlockRef block
;
2230 LLVMBuilderRef builder
;
2231 LLVMValueRef io_ptr
, input_array
, num_prims
, mask_val
;
2232 struct lp_build_sampler_soa
*sampler
= 0;
2233 struct lp_build_context bld
;
2234 struct lp_bld_tgsi_system_values system_values
;
2236 struct lp_type gs_type
;
2238 struct draw_gs_llvm_iface gs_iface
;
2239 const struct tgsi_token
*tokens
= variant
->shader
->base
.state
.tokens
;
2240 LLVMValueRef consts_ptr
, num_consts_ptr
;
2241 LLVMValueRef outputs
[PIPE_MAX_SHADER_OUTPUTS
][TGSI_NUM_CHANNELS
];
2242 struct lp_build_mask_context mask
;
2243 const struct tgsi_shader_info
*gs_info
= &variant
->shader
->base
.info
;
2244 unsigned vector_length
= variant
->shader
->base
.vector_length
;
2246 memset(&system_values
, 0, sizeof(system_values
));
2248 util_snprintf(func_name
, sizeof(func_name
), "draw_llvm_gs_variant%u",
2249 variant
->shader
->variants_cached
);
2251 assert(variant
->vertex_header_ptr_type
);
2253 arg_types
[0] = get_gs_context_ptr_type(variant
); /* context */
2254 arg_types
[1] = variant
->input_array_type
; /* input */
2255 arg_types
[2] = variant
->vertex_header_ptr_type
; /* vertex_header */
2256 arg_types
[3] = int32_type
; /* num_prims */
2257 arg_types
[4] = int32_type
; /* instance_id */
2258 arg_types
[5] = LLVMPointerType(
2259 LLVMVectorType(int32_type
, vector_length
), 0); /* prim_id_ptr */
2260 arg_types
[6] = int32_type
;
2262 func_type
= LLVMFunctionType(int32_type
, arg_types
, ARRAY_SIZE(arg_types
), 0);
2264 variant_func
= LLVMAddFunction(gallivm
->module
, func_name
, func_type
);
2266 variant
->function
= variant_func
;
2268 LLVMSetFunctionCallConv(variant_func
, LLVMCCallConv
);
2270 for (i
= 0; i
< ARRAY_SIZE(arg_types
); ++i
)
2271 if (LLVMGetTypeKind(arg_types
[i
]) == LLVMPointerTypeKind
)
2272 lp_add_function_attr(variant_func
, i
+ 1, LP_FUNC_ATTR_NOALIAS
);
2274 context_ptr
= LLVMGetParam(variant_func
, 0);
2275 input_array
= LLVMGetParam(variant_func
, 1);
2276 io_ptr
= LLVMGetParam(variant_func
, 2);
2277 num_prims
= LLVMGetParam(variant_func
, 3);
2278 system_values
.instance_id
= LLVMGetParam(variant_func
, 4);
2279 prim_id_ptr
= LLVMGetParam(variant_func
, 5);
2280 system_values
.invocation_id
= LLVMGetParam(variant_func
, 6);
2282 lp_build_name(context_ptr
, "context");
2283 lp_build_name(input_array
, "input");
2284 lp_build_name(io_ptr
, "io");
2285 lp_build_name(num_prims
, "num_prims");
2286 lp_build_name(system_values
.instance_id
, "instance_id");
2287 lp_build_name(prim_id_ptr
, "prim_id_ptr");
2288 lp_build_name(system_values
.invocation_id
, "invocation_id");
2290 variant
->context_ptr
= context_ptr
;
2291 variant
->io_ptr
= io_ptr
;
2292 variant
->num_prims
= num_prims
;
2294 gs_iface
.base
.fetch_input
= draw_gs_llvm_fetch_input
;
2295 gs_iface
.base
.emit_vertex
= draw_gs_llvm_emit_vertex
;
2296 gs_iface
.base
.end_primitive
= draw_gs_llvm_end_primitive
;
2297 gs_iface
.base
.gs_epilogue
= draw_gs_llvm_epilogue
;
2298 gs_iface
.input
= input_array
;
2299 gs_iface
.variant
= variant
;
2305 block
= LLVMAppendBasicBlockInContext(gallivm
->context
, variant_func
, "entry");
2306 builder
= gallivm
->builder
;
2307 LLVMPositionBuilderAtEnd(builder
, block
);
2309 lp_build_context_init(&bld
, gallivm
, lp_type_int(32));
2311 memset(&gs_type
, 0, sizeof gs_type
);
2312 gs_type
.floating
= TRUE
; /* floating point values */
2313 gs_type
.sign
= TRUE
; /* values are signed */
2314 gs_type
.norm
= FALSE
; /* values are not limited to [0,1] or [-1,1] */
2315 gs_type
.width
= 32; /* 32-bit float */
2316 gs_type
.length
= vector_length
;
2318 consts_ptr
= draw_gs_jit_context_constants(variant
->gallivm
, context_ptr
);
2320 draw_gs_jit_context_num_constants(variant
->gallivm
, context_ptr
);
2322 /* code generated texture sampling */
2323 sampler
= draw_llvm_sampler_soa_create(variant
->key
.samplers
);
2325 mask_val
= generate_mask_value(variant
, gs_type
);
2326 lp_build_mask_begin(&mask
, gallivm
, gs_type
, mask_val
);
2328 if (gs_info
->uses_primid
) {
2329 system_values
.prim_id
= LLVMBuildLoad(builder
, prim_id_ptr
, "prim_id");
2332 if (gallivm_debug
& (GALLIVM_DEBUG_TGSI
| GALLIVM_DEBUG_IR
)) {
2333 tgsi_dump(tokens
, 0);
2334 draw_gs_llvm_dump_variant_key(&variant
->key
);
2337 lp_build_tgsi_soa(variant
->gallivm
,
2349 &llvm
->draw
->gs
.geometry_shader
->info
,
2350 (const struct lp_build_tgsi_gs_iface
*)&gs_iface
);
2352 sampler
->destroy(sampler
);
2354 lp_build_mask_end(&mask
);
2356 LLVMBuildRet(builder
, lp_build_zero(gallivm
, lp_type_uint(32)));
2358 gallivm_verify_function(gallivm
, variant_func
);
2362 struct draw_gs_llvm_variant
*
2363 draw_gs_llvm_create_variant(struct draw_llvm
*llvm
,
2364 unsigned num_outputs
,
2365 const struct draw_gs_llvm_variant_key
*key
)
2367 struct draw_gs_llvm_variant
*variant
;
2368 struct llvm_geometry_shader
*shader
=
2369 llvm_geometry_shader(llvm
->draw
->gs
.geometry_shader
);
2370 LLVMTypeRef vertex_header
;
2371 char module_name
[64];
2373 variant
= MALLOC(sizeof *variant
+
2374 shader
->variant_key_size
-
2375 sizeof variant
->key
);
2379 variant
->llvm
= llvm
;
2380 variant
->shader
= shader
;
2382 util_snprintf(module_name
, sizeof(module_name
), "draw_llvm_gs_variant%u",
2383 variant
->shader
->variants_cached
);
2385 variant
->gallivm
= gallivm_create(module_name
, llvm
->context
);
2387 create_gs_jit_types(variant
);
2389 memcpy(&variant
->key
, key
, shader
->variant_key_size
);
2391 vertex_header
= create_jit_vertex_header(variant
->gallivm
, num_outputs
);
2393 variant
->vertex_header_ptr_type
= LLVMPointerType(vertex_header
, 0);
2395 draw_gs_llvm_generate(llvm
, variant
);
2397 gallivm_compile_module(variant
->gallivm
);
2399 variant
->jit_func
= (draw_gs_jit_func
)
2400 gallivm_jit_function(variant
->gallivm
, variant
->function
);
2402 gallivm_free_ir(variant
->gallivm
);
2404 variant
->list_item_global
.base
= variant
;
2405 variant
->list_item_local
.base
= variant
;
2406 /*variant->no = */shader
->variants_created
++;
2407 variant
->list_item_global
.base
= variant
;
2413 draw_gs_llvm_destroy_variant(struct draw_gs_llvm_variant
*variant
)
2415 struct draw_llvm
*llvm
= variant
->llvm
;
2417 gallivm_destroy(variant
->gallivm
);
2419 remove_from_list(&variant
->list_item_local
);
2420 variant
->shader
->variants_cached
--;
2421 remove_from_list(&variant
->list_item_global
);
2422 llvm
->nr_gs_variants
--;
2426 struct draw_gs_llvm_variant_key
*
2427 draw_gs_llvm_make_variant_key(struct draw_llvm
*llvm
, char *store
)
2430 struct draw_gs_llvm_variant_key
*key
;
2431 struct draw_sampler_static_state
*draw_sampler
;
2433 key
= (struct draw_gs_llvm_variant_key
*)store
;
2435 memset(key
, 0, offsetof(struct draw_gs_llvm_variant_key
, samplers
[0]));
2437 key
->num_outputs
= draw_total_gs_outputs(llvm
->draw
);
2439 /* All variants of this shader will have the same value for
2440 * nr_samplers. Not yet trying to compact away holes in the
2443 key
->nr_samplers
= llvm
->draw
->gs
.geometry_shader
->info
.file_max
[TGSI_FILE_SAMPLER
] + 1;
2444 if (llvm
->draw
->gs
.geometry_shader
->info
.file_max
[TGSI_FILE_SAMPLER_VIEW
] != -1) {
2445 key
->nr_sampler_views
=
2446 llvm
->draw
->gs
.geometry_shader
->info
.file_max
[TGSI_FILE_SAMPLER_VIEW
] + 1;
2449 key
->nr_sampler_views
= key
->nr_samplers
;
2452 draw_sampler
= key
->samplers
;
2454 memset(draw_sampler
, 0, MAX2(key
->nr_samplers
, key
->nr_sampler_views
) * sizeof *draw_sampler
);
2456 for (i
= 0 ; i
< key
->nr_samplers
; i
++) {
2457 lp_sampler_static_sampler_state(&draw_sampler
[i
].sampler_state
,
2458 llvm
->draw
->samplers
[PIPE_SHADER_GEOMETRY
][i
]);
2460 for (i
= 0 ; i
< key
->nr_sampler_views
; i
++) {
2461 lp_sampler_static_texture_state(&draw_sampler
[i
].texture_state
,
2462 llvm
->draw
->sampler_views
[PIPE_SHADER_GEOMETRY
][i
]);
2469 draw_gs_llvm_dump_variant_key(struct draw_gs_llvm_variant_key
*key
)
2472 struct draw_sampler_static_state
*sampler
= key
->samplers
;
2474 for (i
= 0 ; i
< key
->nr_sampler_views
; i
++) {
2475 debug_printf("sampler[%i].src_format = %s\n", i
,
2476 util_format_name(sampler
[i
].texture_state
.format
));