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 elem_types
[6] = LLVMArrayType(LLVMPointerType(int_type
, 0), /* vs_ssbo */
238 LP_MAX_TGSI_SHADER_BUFFERS
);
239 elem_types
[7] = LLVMArrayType(int_type
, /* num_vs_ssbos */
240 LP_MAX_TGSI_SHADER_BUFFERS
);
241 context_type
= LLVMStructTypeInContext(gallivm
->context
, elem_types
,
242 ARRAY_SIZE(elem_types
), 0);
244 (void) target
; /* silence unused var warning for non-debug build */
245 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, vs_constants
,
246 target
, context_type
, DRAW_JIT_CTX_CONSTANTS
);
247 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, num_vs_constants
,
248 target
, context_type
, DRAW_JIT_CTX_NUM_CONSTANTS
);
249 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, planes
,
250 target
, context_type
, DRAW_JIT_CTX_PLANES
);
251 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, viewports
,
252 target
, context_type
, DRAW_JIT_CTX_VIEWPORT
);
253 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, textures
,
254 target
, context_type
,
255 DRAW_JIT_CTX_TEXTURES
);
256 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, samplers
,
257 target
, context_type
,
258 DRAW_JIT_CTX_SAMPLERS
);
259 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, vs_ssbos
,
260 target
, context_type
, DRAW_JIT_CTX_SSBOS
);
261 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, num_vs_ssbos
,
262 target
, context_type
, DRAW_JIT_CTX_NUM_SSBOS
);
263 LP_CHECK_STRUCT_SIZE(struct draw_jit_context
,
264 target
, context_type
);
271 * Create LLVM type for struct draw_gs_jit_context
274 create_gs_jit_context_type(struct gallivm_state
*gallivm
,
275 unsigned vector_length
,
276 LLVMTypeRef texture_type
, LLVMTypeRef sampler_type
,
277 const char *struct_name
)
279 LLVMTargetDataRef target
= gallivm
->target
;
280 LLVMTypeRef float_type
= LLVMFloatTypeInContext(gallivm
->context
);
281 LLVMTypeRef int_type
= LLVMInt32TypeInContext(gallivm
->context
);
282 LLVMTypeRef elem_types
[DRAW_GS_JIT_CTX_NUM_FIELDS
];
283 LLVMTypeRef context_type
;
285 elem_types
[0] = LLVMArrayType(LLVMPointerType(float_type
, 0), /* constants */
286 LP_MAX_TGSI_CONST_BUFFERS
);
287 elem_types
[1] = LLVMArrayType(int_type
, /* num_constants */
288 LP_MAX_TGSI_CONST_BUFFERS
);
289 elem_types
[2] = LLVMPointerType(LLVMArrayType(LLVMArrayType(float_type
, 4),
290 DRAW_TOTAL_CLIP_PLANES
), 0);
291 elem_types
[3] = LLVMPointerType(float_type
, 0); /* viewports */
293 elem_types
[4] = LLVMArrayType(texture_type
,
294 PIPE_MAX_SHADER_SAMPLER_VIEWS
); /* textures */
295 elem_types
[5] = LLVMArrayType(sampler_type
,
296 PIPE_MAX_SAMPLERS
); /* samplers */
298 elem_types
[6] = LLVMPointerType(LLVMPointerType(int_type
, 0), 0);
299 elem_types
[7] = LLVMPointerType(LLVMVectorType(int_type
,
301 elem_types
[8] = LLVMPointerType(LLVMVectorType(int_type
,
304 elem_types
[9] = LLVMArrayType(LLVMPointerType(int_type
, 0), /* ssbos */
305 LP_MAX_TGSI_SHADER_BUFFERS
);
306 elem_types
[10] = LLVMArrayType(int_type
, /* num_ssbos */
307 LP_MAX_TGSI_SHADER_BUFFERS
);
308 context_type
= LLVMStructTypeInContext(gallivm
->context
, elem_types
,
309 ARRAY_SIZE(elem_types
), 0);
311 (void) target
; /* silence unused var warning for non-debug build */
312 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, constants
,
313 target
, context_type
, DRAW_GS_JIT_CTX_CONSTANTS
);
314 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, num_constants
,
315 target
, context_type
, DRAW_GS_JIT_CTX_NUM_CONSTANTS
);
316 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, planes
,
317 target
, context_type
, DRAW_GS_JIT_CTX_PLANES
);
318 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, viewports
,
319 target
, context_type
, DRAW_GS_JIT_CTX_VIEWPORT
);
320 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, textures
,
321 target
, context_type
,
322 DRAW_GS_JIT_CTX_TEXTURES
);
323 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, samplers
,
324 target
, context_type
,
325 DRAW_GS_JIT_CTX_SAMPLERS
);
326 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, prim_lengths
,
327 target
, context_type
,
328 DRAW_GS_JIT_CTX_PRIM_LENGTHS
);
329 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, emitted_vertices
,
330 target
, context_type
,
331 DRAW_GS_JIT_CTX_EMITTED_VERTICES
);
332 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, emitted_prims
,
333 target
, context_type
,
334 DRAW_GS_JIT_CTX_EMITTED_PRIMS
);
335 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, ssbos
,
336 target
, context_type
, DRAW_GS_JIT_CTX_SSBOS
);
337 LP_CHECK_MEMBER_OFFSET(struct draw_gs_jit_context
, num_ssbos
,
338 target
, context_type
, DRAW_GS_JIT_CTX_NUM_SSBOS
);
339 LP_CHECK_STRUCT_SIZE(struct draw_gs_jit_context
,
340 target
, context_type
);
347 create_gs_jit_input_type(struct gallivm_state
*gallivm
)
349 LLVMTypeRef float_type
= LLVMFloatTypeInContext(gallivm
->context
);
350 LLVMTypeRef input_array
;
352 input_array
= LLVMVectorType(float_type
, TGSI_NUM_CHANNELS
); /* num primitives */
353 input_array
= LLVMArrayType(input_array
, TGSI_NUM_CHANNELS
); /* num channels */
354 input_array
= LLVMArrayType(input_array
, PIPE_MAX_SHADER_INPUTS
); /* num attrs per vertex */
355 input_array
= LLVMPointerType(input_array
, 0); /* num vertices per prim */
361 * Create LLVM type for struct pipe_vertex_buffer
364 create_jit_vertex_buffer_type(struct gallivm_state
*gallivm
,
365 const char *struct_name
)
367 LLVMTargetDataRef target
= gallivm
->target
;
368 LLVMTypeRef elem_types
[4];
371 elem_types
[0] = LLVMInt16TypeInContext(gallivm
->context
);
372 elem_types
[1] = LLVMInt8TypeInContext(gallivm
->context
);
373 elem_types
[2] = LLVMInt32TypeInContext(gallivm
->context
);
374 elem_types
[3] = LLVMPointerType(LLVMInt8TypeInContext(gallivm
->context
), 0);
376 vb_type
= LLVMStructTypeInContext(gallivm
->context
, elem_types
,
377 ARRAY_SIZE(elem_types
), 0);
379 (void) target
; /* silence unused var warning for non-debug build */
380 LP_CHECK_MEMBER_OFFSET(struct pipe_vertex_buffer
, stride
,
382 LP_CHECK_MEMBER_OFFSET(struct pipe_vertex_buffer
, is_user_buffer
,
384 LP_CHECK_MEMBER_OFFSET(struct pipe_vertex_buffer
, buffer_offset
,
386 LP_CHECK_MEMBER_OFFSET(struct pipe_vertex_buffer
, buffer
.resource
,
389 LP_CHECK_STRUCT_SIZE(struct pipe_vertex_buffer
, target
, vb_type
);
396 * Create LLVM type for struct vertex_header;
399 create_jit_vertex_header(struct gallivm_state
*gallivm
, int data_elems
)
401 LLVMTargetDataRef target
= gallivm
->target
;
402 LLVMTypeRef elem_types
[3];
403 LLVMTypeRef vertex_header
;
404 char struct_name
[24];
406 snprintf(struct_name
, 23, "vertex_header%d", data_elems
);
408 elem_types
[DRAW_JIT_VERTEX_VERTEX_ID
] = LLVMIntTypeInContext(gallivm
->context
, 32);
409 elem_types
[DRAW_JIT_VERTEX_CLIP_POS
] = LLVMArrayType(LLVMFloatTypeInContext(gallivm
->context
), 4);
410 elem_types
[DRAW_JIT_VERTEX_DATA
] = LLVMArrayType(elem_types
[1], data_elems
);
412 vertex_header
= LLVMStructTypeInContext(gallivm
->context
, elem_types
,
413 ARRAY_SIZE(elem_types
), 0);
415 /* these are bit-fields and we can't take address of them
416 LP_CHECK_MEMBER_OFFSET(struct vertex_header, clipmask,
417 target, vertex_header,
418 DRAW_JIT_VERTEX_CLIPMASK);
419 LP_CHECK_MEMBER_OFFSET(struct vertex_header, edgeflag,
420 target, vertex_header,
421 DRAW_JIT_VERTEX_EDGEFLAG);
422 LP_CHECK_MEMBER_OFFSET(struct vertex_header, pad,
423 target, vertex_header,
424 DRAW_JIT_VERTEX_PAD);
425 LP_CHECK_MEMBER_OFFSET(struct vertex_header, vertex_id,
426 target, vertex_header,
427 DRAW_JIT_VERTEX_VERTEX_ID);
429 (void) target
; /* silence unused var warning for non-debug build */
430 LP_CHECK_MEMBER_OFFSET(struct vertex_header
, clip_pos
,
431 target
, vertex_header
,
432 DRAW_JIT_VERTEX_CLIP_POS
);
433 LP_CHECK_MEMBER_OFFSET(struct vertex_header
, data
,
434 target
, vertex_header
,
435 DRAW_JIT_VERTEX_DATA
);
437 assert(LLVMABISizeOfType(target
, vertex_header
) ==
438 offsetof(struct vertex_header
, data
[data_elems
]));
440 return vertex_header
;
445 * Create LLVM types for various structures.
448 create_jit_types(struct draw_llvm_variant
*variant
)
450 struct gallivm_state
*gallivm
= variant
->gallivm
;
451 LLVMTypeRef texture_type
, sampler_type
, context_type
, buffer_type
,
454 texture_type
= create_jit_texture_type(gallivm
, "texture");
455 sampler_type
= create_jit_sampler_type(gallivm
, "sampler");
457 context_type
= create_jit_context_type(gallivm
, texture_type
, sampler_type
,
459 variant
->context_ptr_type
= LLVMPointerType(context_type
, 0);
461 buffer_type
= create_jit_dvbuffer_type(gallivm
, "draw_vertex_buffer");
462 variant
->buffer_ptr_type
= LLVMPointerType(buffer_type
, 0);
464 vb_type
= create_jit_vertex_buffer_type(gallivm
, "pipe_vertex_buffer");
465 variant
->vb_ptr_type
= LLVMPointerType(vb_type
, 0);
470 get_context_ptr_type(struct draw_llvm_variant
*variant
)
472 if (!variant
->context_ptr_type
)
473 create_jit_types(variant
);
474 return variant
->context_ptr_type
;
479 get_buffer_ptr_type(struct draw_llvm_variant
*variant
)
481 if (!variant
->buffer_ptr_type
)
482 create_jit_types(variant
);
483 return variant
->buffer_ptr_type
;
488 get_vb_ptr_type(struct draw_llvm_variant
*variant
)
490 if (!variant
->vb_ptr_type
)
491 create_jit_types(variant
);
492 return variant
->vb_ptr_type
;
496 get_vertex_header_ptr_type(struct draw_llvm_variant
*variant
)
498 if (!variant
->vertex_header_ptr_type
)
499 create_jit_types(variant
);
500 return variant
->vertex_header_ptr_type
;
505 * Create per-context LLVM info.
508 draw_llvm_create(struct draw_context
*draw
, LLVMContextRef context
)
510 struct draw_llvm
*llvm
;
512 if (!lp_build_init())
515 llvm
= CALLOC_STRUCT( draw_llvm
);
521 llvm
->context
= context
;
522 if (!llvm
->context
) {
523 llvm
->context
= LLVMContextCreate();
524 llvm
->context_owned
= true;
529 llvm
->nr_variants
= 0;
530 make_empty_list(&llvm
->vs_variants_list
);
532 llvm
->nr_gs_variants
= 0;
533 make_empty_list(&llvm
->gs_variants_list
);
538 draw_llvm_destroy(llvm
);
544 * Free per-context LLVM info.
547 draw_llvm_destroy(struct draw_llvm
*llvm
)
549 if (llvm
->context_owned
)
550 LLVMContextDispose(llvm
->context
);
551 llvm
->context
= NULL
;
553 /* XXX free other draw_llvm data? */
559 * Create LLVM-generated code for a vertex shader.
561 struct draw_llvm_variant
*
562 draw_llvm_create_variant(struct draw_llvm
*llvm
,
564 const struct draw_llvm_variant_key
*key
)
566 struct draw_llvm_variant
*variant
;
567 struct llvm_vertex_shader
*shader
=
568 llvm_vertex_shader(llvm
->draw
->vs
.vertex_shader
);
569 LLVMTypeRef vertex_header
;
570 char module_name
[64];
572 variant
= MALLOC(sizeof *variant
+
573 shader
->variant_key_size
-
574 sizeof variant
->key
);
578 variant
->llvm
= llvm
;
579 variant
->shader
= shader
;
581 snprintf(module_name
, sizeof(module_name
), "draw_llvm_vs_variant%u",
582 variant
->shader
->variants_cached
);
584 variant
->gallivm
= gallivm_create(module_name
, llvm
->context
);
586 create_jit_types(variant
);
588 memcpy(&variant
->key
, key
, shader
->variant_key_size
);
590 if (gallivm_debug
& (GALLIVM_DEBUG_TGSI
| GALLIVM_DEBUG_IR
)) {
591 tgsi_dump(llvm
->draw
->vs
.vertex_shader
->state
.tokens
, 0);
592 draw_llvm_dump_variant_key(&variant
->key
);
595 vertex_header
= create_jit_vertex_header(variant
->gallivm
, num_inputs
);
597 variant
->vertex_header_ptr_type
= LLVMPointerType(vertex_header
, 0);
599 draw_llvm_generate(llvm
, variant
);
601 gallivm_compile_module(variant
->gallivm
);
603 variant
->jit_func
= (draw_jit_vert_func
)
604 gallivm_jit_function(variant
->gallivm
, variant
->function
);
606 gallivm_free_ir(variant
->gallivm
);
608 variant
->list_item_global
.base
= variant
;
609 variant
->list_item_local
.base
= variant
;
610 /*variant->no = */shader
->variants_created
++;
611 variant
->list_item_global
.base
= variant
;
618 generate_vs(struct draw_llvm_variant
*variant
,
619 LLVMBuilderRef builder
,
620 struct lp_type vs_type
,
621 LLVMValueRef (*outputs
)[TGSI_NUM_CHANNELS
],
622 const LLVMValueRef (*inputs
)[TGSI_NUM_CHANNELS
],
623 const struct lp_bld_tgsi_system_values
*system_values
,
624 LLVMValueRef context_ptr
,
625 const struct lp_build_sampler_soa
*draw_sampler
,
626 boolean clamp_vertex_color
,
627 struct lp_build_mask_context
*bld_mask
)
629 struct draw_llvm
*llvm
= variant
->llvm
;
630 const struct tgsi_token
*tokens
= llvm
->draw
->vs
.vertex_shader
->state
.tokens
;
631 LLVMValueRef consts_ptr
=
632 draw_jit_context_vs_constants(variant
->gallivm
, context_ptr
);
633 LLVMValueRef num_consts_ptr
=
634 draw_jit_context_num_vs_constants(variant
->gallivm
, context_ptr
);
635 LLVMValueRef ssbos_ptr
=
636 draw_jit_context_vs_ssbos(variant
->gallivm
, context_ptr
);
637 LLVMValueRef num_ssbos_ptr
=
638 draw_jit_context_num_vs_ssbos(variant
->gallivm
, context_ptr
);
640 lp_build_tgsi_soa(variant
->gallivm
,
643 bld_mask
, /*struct lp_build_mask_context *mask*/
652 &llvm
->draw
->vs
.vertex_shader
->info
,
653 NULL
, ssbos_ptr
, num_ssbos_ptr
);
657 unsigned chan
, attrib
;
658 struct lp_build_context bld
;
659 struct tgsi_shader_info
* info
= &llvm
->draw
->vs
.vertex_shader
->info
;
660 lp_build_context_init(&bld
, variant
->gallivm
, vs_type
);
662 for (attrib
= 0; attrib
< info
->num_outputs
; ++attrib
) {
663 for (chan
= 0; chan
< TGSI_NUM_CHANNELS
; ++chan
) {
664 if (outputs
[attrib
][chan
]) {
665 switch (info
->output_semantic_name
[attrib
]) {
666 case TGSI_SEMANTIC_COLOR
:
667 case TGSI_SEMANTIC_BCOLOR
:
668 if (clamp_vertex_color
) {
669 out
= LLVMBuildLoad(builder
, outputs
[attrib
][chan
], "");
670 out
= lp_build_clamp(&bld
, out
, bld
.zero
, bld
.one
);
671 LLVMBuildStore(builder
, out
, outputs
[attrib
][chan
]);
683 fetch_instanced(struct gallivm_state
*gallivm
,
684 const struct util_format_description
*format_desc
,
685 struct lp_type vs_type
,
686 LLVMValueRef vb_stride
,
687 LLVMValueRef map_ptr
,
688 LLVMValueRef buffer_size_adj
,
689 LLVMValueRef
*inputs
,
692 LLVMTypeRef i32_t
= LLVMInt32TypeInContext(gallivm
->context
);
693 LLVMTypeRef aosf_t
, aosi_t
;
694 LLVMValueRef zero
= LLVMConstNull(i32_t
);
695 LLVMBuilderRef builder
= gallivm
->builder
;
696 LLVMValueRef stride
, buffer_overflowed
, aos
, index_valid
;
699 aosf_t
= lp_build_vec_type(gallivm
, lp_float32_vec4_type());
700 aosi_t
= lp_build_vec_type(gallivm
, lp_int32_vec4_type());
702 /* This mul can overflow. Wraparound is ok. */
703 stride
= LLVMBuildMul(builder
, vb_stride
, index
, "");
705 buffer_overflowed
= LLVMBuildICmp(builder
, LLVMIntUGE
,
706 stride
, buffer_size_adj
,
707 "buffer_overflowed");
710 lp_build_print_value(gallivm
, " instance index = ", index
);
711 lp_build_print_value(gallivm
, " buffer overflowed = ", buffer_overflowed
);
714 index_valid
= LLVMBuildNot(builder
, buffer_overflowed
, "");
715 index_valid
= LLVMBuildSExt(builder
, index_valid
, i32_t
, "");
716 stride
= LLVMBuildAnd(builder
, stride
, index_valid
, "");
718 aos
= lp_build_fetch_rgba_aos(gallivm
,
720 lp_float32_vec4_type(),
726 index_valid
= lp_build_broadcast(gallivm
, aosi_t
, index_valid
);
727 aos
= LLVMBuildBitCast(builder
, aos
, aosi_t
, "");
728 aos
= LLVMBuildAnd(builder
, aos
, index_valid
, "");
729 aos
= LLVMBuildBitCast(builder
, aos
, aosf_t
, "");
731 for (i
= 0; i
< TGSI_NUM_CHANNELS
; i
++) {
732 LLVMValueRef index
= lp_build_const_int32(gallivm
, i
);
733 inputs
[i
] = lp_build_extract_broadcast(gallivm
,
734 lp_float32_vec4_type(),
735 vs_type
, aos
, index
);
741 fetch_vector(struct gallivm_state
*gallivm
,
742 const struct util_format_description
*format_desc
,
743 struct lp_type vs_type
,
744 LLVMValueRef vb_stride
,
745 LLVMValueRef map_ptr
,
746 LLVMValueRef buffer_size_adj
,
747 LLVMValueRef
*inputs
,
748 LLVMValueRef indices
)
750 LLVMBuilderRef builder
= gallivm
->builder
;
751 struct lp_build_context blduivec
;
752 struct lp_type fetch_type
= vs_type
;
753 LLVMValueRef offset
, valid_mask
;
756 lp_build_context_init(&blduivec
, gallivm
, lp_uint_type(vs_type
));
758 vb_stride
= lp_build_broadcast_scalar(&blduivec
, vb_stride
);
759 buffer_size_adj
= lp_build_broadcast_scalar(&blduivec
, buffer_size_adj
);
761 /* This mul can overflow. Wraparound is ok. */
762 offset
= lp_build_mul(&blduivec
, vb_stride
, indices
);
764 valid_mask
= lp_build_compare(gallivm
, blduivec
.type
,
765 PIPE_FUNC_LESS
, offset
, buffer_size_adj
);
767 /* not valid elements use offset 0 */
768 offset
= LLVMBuildAnd(builder
, offset
, valid_mask
, "");
771 lp_build_print_value(gallivm
, " indices = ", indices
);
772 lp_build_print_value(gallivm
, " offsets = ", offset
);
773 lp_build_print_value(gallivm
, " valid_mask = ", valid_mask
);
777 * Unlike fetch_instanced, use SoA fetch instead of multiple AoS fetches.
778 * This should always produce better code.
781 /* The type handling is annoying here... */
782 if (format_desc
->colorspace
== UTIL_FORMAT_COLORSPACE_RGB
&&
783 format_desc
->channel
[0].pure_integer
) {
784 if (format_desc
->channel
[0].type
== UTIL_FORMAT_TYPE_SIGNED
) {
785 fetch_type
= lp_type_int_vec(vs_type
.width
, vs_type
.width
* vs_type
.length
);
787 else if (format_desc
->channel
[0].type
== UTIL_FORMAT_TYPE_UNSIGNED
) {
788 fetch_type
= lp_type_uint_vec(vs_type
.width
, vs_type
.width
* vs_type
.length
);
792 lp_build_fetch_rgba_soa(gallivm
, format_desc
,
793 fetch_type
, FALSE
, map_ptr
, offset
,
794 blduivec
.zero
, blduivec
.zero
,
797 for (i
= 0; i
< TGSI_NUM_CHANNELS
; i
++) {
798 inputs
[i
] = LLVMBuildBitCast(builder
, inputs
[i
],
799 lp_build_vec_type(gallivm
, vs_type
), "");
802 /* out-of-bound fetches return all zeros */
803 for (i
= 0; i
< TGSI_NUM_CHANNELS
; i
++) {
804 inputs
[i
] = LLVMBuildBitCast(builder
, inputs
[i
], blduivec
.vec_type
, "");
805 inputs
[i
] = LLVMBuildAnd(builder
, inputs
[i
], valid_mask
, "");
806 inputs
[i
] = LLVMBuildBitCast(builder
, inputs
[i
],
807 lp_build_vec_type(gallivm
, vs_type
), "");
813 store_aos(struct gallivm_state
*gallivm
,
818 LLVMTypeRef data_ptr_type
= LLVMPointerType(lp_build_vec_type(gallivm
, lp_float32_vec4_type()), 0);
819 LLVMBuilderRef builder
= gallivm
->builder
;
820 LLVMValueRef data_ptr
= draw_jit_header_data(gallivm
, io_ptr
);
821 LLVMValueRef indices
[3];
823 indices
[0] = lp_build_const_int32(gallivm
, 0);
825 indices
[2] = lp_build_const_int32(gallivm
, 0);
827 data_ptr
= LLVMBuildGEP(builder
, data_ptr
, indices
, 3, "");
828 data_ptr
= LLVMBuildPointerCast(builder
, data_ptr
, data_ptr_type
, "");
831 lp_build_printf(gallivm
, " ---- %p storing attribute %d (io = %p)\n", data_ptr
, index
, io_ptr
);
834 /* Unaligned store due to the vertex header */
835 LLVMSetAlignment(LLVMBuildStore(builder
, value
, data_ptr
), sizeof(float));
839 * Adjust the mask to architecture endianess. The mask will the store in struct:
841 * struct vertex_header {
842 * unsigned clipmask:DRAW_TOTAL_CLIP_PLANES;
843 * unsigned edgeflag:1;
845 * unsigned vertex_id:16;
849 * On little-endian machine nothing needs to done, however on bit-endian machine
850 * the mask's fields need to be adjusted with the algorithm:
852 * uint32_t reverse (uint32_t x)
854 * return (x >> 16) | // vertex_id
855 * ((x & 0x3fff) << 18) | // clipmask
856 * ((x & 0x4000) << 3) | // pad
857 * ((x & 0x8000) << 1); // edgeflag
861 adjust_mask(struct gallivm_state
*gallivm
,
864 #ifdef PIPE_ARCH_BIG_ENDIAN
865 LLVMBuilderRef builder
= gallivm
->builder
;
866 LLVMValueRef vertex_id
;
867 LLVMValueRef clipmask
;
869 LLVMValueRef edgeflag
;
871 vertex_id
= LLVMBuildLShr(builder
, mask
, lp_build_const_int32(gallivm
, 16), "");
872 clipmask
= LLVMBuildAnd(builder
, mask
, lp_build_const_int32(gallivm
, 0x3fff), "");
873 clipmask
= LLVMBuildShl(builder
, clipmask
, lp_build_const_int32(gallivm
, 18), "");
875 pad
= LLVMBuildAnd(builder
, mask
, lp_build_const_int32(gallivm
, 0x4000), "");
876 pad
= LLVMBuildShl(builder
, pad
, lp_build_const_int32(gallivm
, 3), "");
878 edgeflag
= LLVMBuildAnd(builder
, mask
, lp_build_const_int32(gallivm
, 0x8000), "");
879 edgeflag
= LLVMBuildShl(builder
, edgeflag
, lp_build_const_int32(gallivm
, 1), "");
881 mask
= LLVMBuildOr(builder
, vertex_id
, clipmask
, "");
883 mask
= LLVMBuildOr(builder
, mask
, pad
, "");
885 mask
= LLVMBuildOr(builder
, mask
, edgeflag
, "");
891 store_aos_array(struct gallivm_state
*gallivm
,
892 struct lp_type soa_type
,
894 LLVMValueRef
*indices
,
898 LLVMValueRef clipmask
,
899 boolean need_edgeflag
)
901 LLVMBuilderRef builder
= gallivm
->builder
;
902 LLVMValueRef attr_index
= lp_build_const_int32(gallivm
, attrib
);
903 LLVMValueRef inds
[LP_MAX_VECTOR_WIDTH
/ 32];
904 LLVMValueRef linear_inds
[LP_MAX_VECTOR_WIDTH
/ 32];
905 LLVMValueRef io_ptrs
[LP_MAX_VECTOR_WIDTH
/ 32];
906 int vector_length
= soa_type
.length
;
909 debug_assert(TGSI_NUM_CHANNELS
== 4);
911 for (i
= 0; i
< vector_length
; i
++) {
912 linear_inds
[i
] = lp_build_const_int32(gallivm
, i
);
914 inds
[i
] = indices
[i
];
916 inds
[i
] = linear_inds
[i
];
918 io_ptrs
[i
] = LLVMBuildGEP(builder
, io_ptr
, &inds
[i
], 1, "");
922 /* store vertex header for each of the n vertices */
923 LLVMValueRef val
, cliptmp
;
924 int vertex_id_pad_edgeflag
;
926 /* If this assertion fails, it means we need to update the bit twidding
927 * code here. See struct vertex_header in draw_private.h.
929 assert(DRAW_TOTAL_CLIP_PLANES
==14);
930 /* initialize vertex id:16 = 0xffff, pad:1 = 0, edgeflag:1 = 1 */
931 if (!need_edgeflag
) {
932 vertex_id_pad_edgeflag
= (0xffff << 16) | (1 << DRAW_TOTAL_CLIP_PLANES
);
935 vertex_id_pad_edgeflag
= (0xffff << 16);
937 val
= lp_build_const_int_vec(gallivm
, lp_int_type(soa_type
),
938 vertex_id_pad_edgeflag
);
939 /* OR with the clipmask */
940 cliptmp
= LLVMBuildOr(builder
, val
, clipmask
, "");
941 for (i
= 0; i
< vector_length
; i
++) {
942 LLVMValueRef id_ptr
= draw_jit_header_id(gallivm
, io_ptrs
[i
]);
943 val
= LLVMBuildExtractElement(builder
, cliptmp
, linear_inds
[i
], "");
944 val
= adjust_mask(gallivm
, val
);
946 lp_build_printf(gallivm
, "io = %p, index %d, clipmask = %x\n",
947 io_ptrs
[i
], inds
[i
], val
);
949 LLVMBuildStore(builder
, val
, id_ptr
);
953 /* store for each of the n vertices */
954 for (i
= 0; i
< vector_length
; i
++) {
955 store_aos(gallivm
, io_ptrs
[i
], attr_index
, aos
[i
]);
961 convert_to_aos(struct gallivm_state
*gallivm
,
963 LLVMValueRef
*indices
,
964 LLVMValueRef (*outputs
)[TGSI_NUM_CHANNELS
],
965 LLVMValueRef clipmask
,
967 struct lp_type soa_type
,
968 boolean need_edgeflag
)
970 LLVMBuilderRef builder
= gallivm
->builder
;
971 unsigned chan
, attrib
, i
;
974 lp_build_printf(gallivm
, " # storing begin\n");
976 for (attrib
= 0; attrib
< num_outputs
; ++attrib
) {
977 LLVMValueRef soa
[TGSI_NUM_CHANNELS
];
978 LLVMValueRef aos
[LP_MAX_VECTOR_WIDTH
/ 32];
979 for (chan
= 0; chan
< TGSI_NUM_CHANNELS
; ++chan
) {
980 if (outputs
[attrib
][chan
]) {
981 LLVMValueRef out
= LLVMBuildLoad(builder
, outputs
[attrib
][chan
], "");
982 lp_build_name(out
, "output%u.%c", attrib
, "xyzw"[chan
]);
984 lp_build_printf(gallivm
, "output %d : %d ",
985 LLVMConstInt(LLVMInt32TypeInContext(gallivm
->context
),
987 LLVMConstInt(LLVMInt32TypeInContext(gallivm
->context
),
989 lp_build_print_value(gallivm
, "val = ", out
);
992 LLVMBuildBitCast(builder
, out
, lp_build_int_vec_type(gallivm
, soa_type
), "");
994 lp_build_print_value(gallivm
, " ival = ", iv
);
1005 if (soa_type
.length
== TGSI_NUM_CHANNELS
) {
1006 lp_build_transpose_aos(gallivm
, soa_type
, soa
, aos
);
1008 lp_build_transpose_aos(gallivm
, soa_type
, soa
, soa
);
1010 for (i
= 0; i
< soa_type
.length
; ++i
) {
1011 aos
[i
] = lp_build_extract_range(gallivm
,
1012 soa
[i
% TGSI_NUM_CHANNELS
],
1013 (i
/ TGSI_NUM_CHANNELS
) * TGSI_NUM_CHANNELS
,
1018 store_aos_array(gallivm
,
1028 lp_build_printf(gallivm
, " # storing end\n");
1034 * Stores original vertex positions in clip coordinates
1037 store_clip(struct gallivm_state
*gallivm
,
1038 const struct lp_type vs_type
,
1039 LLVMValueRef io_ptr
,
1040 LLVMValueRef (*outputs
)[TGSI_NUM_CHANNELS
],
1043 LLVMBuilderRef builder
= gallivm
->builder
;
1044 LLVMValueRef soa
[4];
1045 LLVMValueRef aos
[LP_MAX_VECTOR_LENGTH
];
1046 LLVMValueRef indices
[2];
1047 LLVMValueRef io_ptrs
[LP_MAX_VECTOR_WIDTH
/ 32];
1048 LLVMValueRef inds
[LP_MAX_VECTOR_WIDTH
/ 32];
1049 LLVMValueRef clip_ptrs
[LP_MAX_VECTOR_WIDTH
/ 32];
1050 LLVMTypeRef clip_ptr_type
=
1051 LLVMPointerType(LLVMVectorType(LLVMFloatTypeInContext(gallivm
->context
),
1056 indices
[1] = lp_build_const_int32(gallivm
, 0);
1058 for (i
= 0; i
< vs_type
.length
; i
++) {
1059 inds
[i
] = lp_build_const_int32(gallivm
, i
);
1060 io_ptrs
[i
] = LLVMBuildGEP(builder
, io_ptr
, &inds
[i
], 1, "");
1063 soa
[0] = LLVMBuildLoad(builder
, outputs
[idx
][0], ""); /*x0 x1 .. xn*/
1064 soa
[1] = LLVMBuildLoad(builder
, outputs
[idx
][1], ""); /*y0 y1 .. yn*/
1065 soa
[2] = LLVMBuildLoad(builder
, outputs
[idx
][2], ""); /*z0 z1 .. zn*/
1066 soa
[3] = LLVMBuildLoad(builder
, outputs
[idx
][3], ""); /*w0 w1 .. wn*/
1068 for (i
= 0; i
< vs_type
.length
; i
++) {
1069 clip_ptrs
[i
] = draw_jit_header_clip_pos(gallivm
, io_ptrs
[i
]);
1072 lp_build_transpose_aos(gallivm
, vs_type
, soa
, soa
);
1073 for (i
= 0; i
< vs_type
.length
; ++i
) {
1074 aos
[i
] = lp_build_extract_range(gallivm
,
1075 soa
[i
% TGSI_NUM_CHANNELS
],
1076 (i
/ TGSI_NUM_CHANNELS
) * TGSI_NUM_CHANNELS
,
1080 for (j
= 0; j
< vs_type
.length
; j
++) {
1081 LLVMValueRef clip_ptr
;
1083 clip_ptr
= LLVMBuildGEP(builder
, clip_ptrs
[j
], indices
, 2, "clipo");
1084 clip_ptr
= LLVMBuildPointerCast(builder
, clip_ptr
, clip_ptr_type
, "");
1086 /* Unaligned store */
1087 LLVMSetAlignment(LLVMBuildStore(builder
, aos
[j
], clip_ptr
), sizeof(float));
1093 * Transforms the outputs for viewport mapping
1096 generate_viewport(struct draw_llvm_variant
*variant
,
1097 LLVMBuilderRef builder
,
1098 struct lp_type vs_type
,
1099 LLVMValueRef (*outputs
)[TGSI_NUM_CHANNELS
],
1100 LLVMValueRef context_ptr
)
1103 struct gallivm_state
*gallivm
= variant
->gallivm
;
1104 struct lp_type f32_type
= vs_type
;
1105 const unsigned pos
= variant
->llvm
->draw
->vs
.position_output
;
1106 LLVMTypeRef vs_type_llvm
= lp_build_vec_type(gallivm
, vs_type
);
1107 LLVMValueRef out3
= LLVMBuildLoad(builder
, outputs
[pos
][3], ""); /*w0 w1 .. wn*/
1108 LLVMValueRef const1
= lp_build_const_vec(gallivm
, f32_type
, 1.0); /*1.0 1.0 1.0 1.0*/
1109 LLVMValueRef vp_ptr
= draw_jit_context_viewports(gallivm
, context_ptr
);
1111 /* We treat pipe_viewport_state as a float array */
1112 const int scale_index_offset
= offsetof(struct pipe_viewport_state
, scale
) / sizeof(float);
1113 const int trans_index_offset
= offsetof(struct pipe_viewport_state
, translate
) / sizeof(float);
1115 /* for 1/w convention*/
1116 out3
= LLVMBuildFDiv(builder
, const1
, out3
, "");
1117 LLVMBuildStore(builder
, out3
, outputs
[pos
][3]);
1119 /* Viewport Mapping */
1120 for (i
=0; i
<3; i
++) {
1121 LLVMValueRef out
= LLVMBuildLoad(builder
, outputs
[pos
][i
], ""); /*x0 x1 .. xn*/
1124 LLVMValueRef scale_i
;
1125 LLVMValueRef trans_i
;
1128 index
= lp_build_const_int32(gallivm
, i
+ scale_index_offset
);
1129 scale_i
= LLVMBuildGEP(builder
, vp_ptr
, &index
, 1, "");
1131 index
= lp_build_const_int32(gallivm
, i
+ trans_index_offset
);
1132 trans_i
= LLVMBuildGEP(builder
, vp_ptr
, &index
, 1, "");
1134 scale
= lp_build_broadcast(gallivm
, vs_type_llvm
,
1135 LLVMBuildLoad(builder
, scale_i
, "scale"));
1136 trans
= lp_build_broadcast(gallivm
, vs_type_llvm
,
1137 LLVMBuildLoad(builder
, trans_i
, "trans"));
1140 out
= LLVMBuildFMul(builder
, out
, out3
, "");
1141 /* mult by scale, add translation */
1142 out
= lp_build_fmuladd(builder
, out
, scale
, trans
);
1144 /* store transformed outputs */
1145 LLVMBuildStore(builder
, out
, outputs
[pos
][i
]);
1152 * Returns clipmask as nxi32 bitmask for the n vertices
1155 generate_clipmask(struct draw_llvm
*llvm
,
1156 struct gallivm_state
*gallivm
,
1157 struct lp_type vs_type
,
1158 LLVMValueRef (*outputs
)[TGSI_NUM_CHANNELS
],
1159 struct draw_llvm_variant_key
*key
,
1160 LLVMValueRef context_ptr
,
1161 boolean
*have_clipdist
)
1163 LLVMBuilderRef builder
= gallivm
->builder
;
1164 LLVMValueRef mask
; /* stores the <nxi32> clipmasks */
1165 LLVMValueRef test
, temp
;
1166 LLVMValueRef zero
, shift
;
1167 LLVMValueRef pos_x
, pos_y
, pos_z
, pos_w
;
1168 LLVMValueRef cv_x
, cv_y
, cv_z
, cv_w
;
1169 LLVMValueRef plane1
, planes
, plane_ptr
, sum
;
1170 struct lp_type f32_type
= vs_type
;
1171 struct lp_type i32_type
= lp_int_type(vs_type
);
1172 const unsigned pos
= llvm
->draw
->vs
.position_output
;
1173 const unsigned cv
= llvm
->draw
->vs
.clipvertex_output
;
1174 int num_written_clipdistance
= llvm
->draw
->vs
.vertex_shader
->info
.num_written_clipdistance
;
1175 boolean have_cd
= false;
1176 boolean clip_user
= key
->clip_user
;
1177 unsigned ucp_enable
= key
->ucp_enable
;
1180 cd
[0] = llvm
->draw
->vs
.ccdistance_output
[0];
1181 cd
[1] = llvm
->draw
->vs
.ccdistance_output
[1];
1183 if (cd
[0] != pos
|| cd
[1] != pos
)
1186 if (num_written_clipdistance
&& !clip_user
) {
1188 ucp_enable
= (1 << num_written_clipdistance
) - 1;
1191 mask
= lp_build_const_int_vec(gallivm
, i32_type
, 0);
1192 temp
= lp_build_const_int_vec(gallivm
, i32_type
, 0);
1193 zero
= lp_build_const_vec(gallivm
, f32_type
, 0); /* 0.0f 0.0f 0.0f 0.0f */
1194 shift
= lp_build_const_int_vec(gallivm
, i32_type
, 1); /* 1 1 1 1 */
1197 * load clipvertex and position from correct locations.
1198 * if they are the same just load them once.
1200 pos_x
= LLVMBuildLoad(builder
, outputs
[pos
][0], ""); /*x0 x1 .. xn */
1201 pos_y
= LLVMBuildLoad(builder
, outputs
[pos
][1], ""); /*y0 y1 .. yn */
1202 pos_z
= LLVMBuildLoad(builder
, outputs
[pos
][2], ""); /*z0 z1 .. zn */
1203 pos_w
= LLVMBuildLoad(builder
, outputs
[pos
][3], ""); /*w0 w1 .. wn */
1205 if (clip_user
&& cv
!= pos
) {
1206 cv_x
= LLVMBuildLoad(builder
, outputs
[cv
][0], ""); /*x0 x1 .. xn */
1207 cv_y
= LLVMBuildLoad(builder
, outputs
[cv
][1], ""); /*y0 y1 .. yn */
1208 cv_z
= LLVMBuildLoad(builder
, outputs
[cv
][2], ""); /*z0 z1 .. zn */
1209 cv_w
= LLVMBuildLoad(builder
, outputs
[cv
][3], ""); /*w0 w1 .. wn */
1218 * Be careful with the comparisons and NaNs (using llvm's unordered
1219 * comparisons here).
1221 /* Cliptest, for hardwired planes */
1223 * XXX should take guardband into account (currently not in key).
1224 * Otherwise might run the draw pipeline stages for nothing.
1228 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, pos_x
, pos_w
);
1230 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1234 test
= LLVMBuildFAdd(builder
, pos_x
, pos_w
, "");
1235 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, zero
, test
);
1236 temp
= LLVMBuildShl(builder
, temp
, shift
, "");
1237 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1238 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1241 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, pos_y
, pos_w
);
1242 temp
= LLVMBuildShl(builder
, temp
, shift
, "");
1243 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1244 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1247 test
= LLVMBuildFAdd(builder
, pos_y
, pos_w
, "");
1248 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, zero
, test
);
1249 temp
= LLVMBuildShl(builder
, temp
, shift
, "");
1250 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1251 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1255 temp
= lp_build_const_int_vec(gallivm
, i32_type
, 16);
1256 if (key
->clip_halfz
) {
1258 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, zero
, pos_z
);
1259 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1260 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1264 test
= LLVMBuildFAdd(builder
, pos_z
, pos_w
, "");
1265 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, zero
, test
);
1266 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1267 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1270 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, pos_z
, pos_w
);
1271 temp
= LLVMBuildShl(builder
, temp
, shift
, "");
1272 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1273 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1277 LLVMValueRef planes_ptr
= draw_jit_context_planes(gallivm
, context_ptr
);
1278 LLVMValueRef indices
[3];
1279 LLVMValueRef is_nan_or_inf
;
1281 /* userclip planes */
1282 while (ucp_enable
) {
1283 unsigned plane_idx
= ffs(ucp_enable
)-1;
1284 ucp_enable
&= ~(1 << plane_idx
);
1287 if (have_cd
&& num_written_clipdistance
) {
1288 LLVMValueRef clipdist
;
1292 *have_clipdist
= TRUE
;
1294 clipdist
= LLVMBuildLoad(builder
, outputs
[cd
[0]][i
], "");
1296 clipdist
= LLVMBuildLoad(builder
, outputs
[cd
[1]][i
-4], "");
1298 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, zero
, clipdist
);
1299 is_nan_or_inf
= lp_build_is_inf_or_nan(gallivm
, vs_type
, clipdist
);
1300 test
= LLVMBuildOr(builder
, test
, is_nan_or_inf
, "");
1301 temp
= lp_build_const_int_vec(gallivm
, i32_type
, 1LL << plane_idx
);
1302 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1303 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1305 LLVMTypeRef vs_type_llvm
= lp_build_vec_type(gallivm
, vs_type
);
1306 indices
[0] = lp_build_const_int32(gallivm
, 0);
1307 indices
[1] = lp_build_const_int32(gallivm
, plane_idx
);
1309 indices
[2] = lp_build_const_int32(gallivm
, 0);
1310 plane_ptr
= LLVMBuildGEP(builder
, planes_ptr
, indices
, 3, "");
1311 plane1
= LLVMBuildLoad(builder
, plane_ptr
, "plane_x");
1312 planes
= lp_build_broadcast(gallivm
, vs_type_llvm
, plane1
);
1313 sum
= LLVMBuildFMul(builder
, planes
, cv_x
, "");
1315 indices
[2] = lp_build_const_int32(gallivm
, 1);
1316 plane_ptr
= LLVMBuildGEP(builder
, planes_ptr
, indices
, 3, "");
1317 plane1
= LLVMBuildLoad(builder
, plane_ptr
, "plane_y");
1318 planes
= lp_build_broadcast(gallivm
, vs_type_llvm
, plane1
);
1319 sum
= lp_build_fmuladd(builder
, planes
, cv_y
, sum
);
1321 indices
[2] = lp_build_const_int32(gallivm
, 2);
1322 plane_ptr
= LLVMBuildGEP(builder
, planes_ptr
, indices
, 3, "");
1323 plane1
= LLVMBuildLoad(builder
, plane_ptr
, "plane_z");
1324 planes
= lp_build_broadcast(gallivm
, vs_type_llvm
, plane1
);
1325 sum
= lp_build_fmuladd(builder
, planes
, cv_z
, sum
);
1327 indices
[2] = lp_build_const_int32(gallivm
, 3);
1328 plane_ptr
= LLVMBuildGEP(builder
, planes_ptr
, indices
, 3, "");
1329 plane1
= LLVMBuildLoad(builder
, plane_ptr
, "plane_w");
1330 planes
= lp_build_broadcast(gallivm
, vs_type_llvm
, plane1
);
1331 sum
= lp_build_fmuladd(builder
, planes
, cv_w
, sum
);
1333 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_GREATER
, zero
, sum
);
1334 temp
= lp_build_const_int_vec(gallivm
, i32_type
, 1LL << plane_idx
);
1335 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1336 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1340 if (key
->need_edgeflags
) {
1342 * This isn't really part of clipmask but stored the same in vertex
1343 * header later, so do it here.
1345 unsigned edge_attr
= llvm
->draw
->vs
.edgeflag_output
;
1346 LLVMValueRef one
= lp_build_const_vec(gallivm
, f32_type
, 1.0);
1347 LLVMValueRef edgeflag
= LLVMBuildLoad(builder
, outputs
[edge_attr
][0], "");
1348 test
= lp_build_compare(gallivm
, f32_type
, PIPE_FUNC_EQUAL
, one
, edgeflag
);
1349 temp
= lp_build_const_int_vec(gallivm
, i32_type
,
1350 1LL << DRAW_TOTAL_CLIP_PLANES
);
1351 test
= LLVMBuildAnd(builder
, test
, temp
, "");
1352 mask
= LLVMBuildOr(builder
, mask
, test
, "");
1359 * Returns boolean if any clipping has occurred
1360 * Used zero/one i8 value to represent boolean
1363 clipmask_booli8(struct gallivm_state
*gallivm
,
1364 const struct lp_type vs_type
,
1365 LLVMValueRef clipmask_bool_ptr
,
1366 boolean edgeflag_in_clipmask
)
1368 LLVMBuilderRef builder
= gallivm
->builder
;
1369 LLVMTypeRef int8_type
= LLVMInt8TypeInContext(gallivm
->context
);
1370 LLVMValueRef clipmask_bool
= LLVMBuildLoad(builder
, clipmask_bool_ptr
, "");
1372 struct lp_build_context bldivec
;
1374 lp_build_context_init(&bldivec
, gallivm
, lp_int_type(vs_type
));
1377 * We need to invert the edgeflag bit from the clipmask here
1378 * (because the result is really if we want to run the pipeline or not
1379 * and we (may) need it if edgeflag was 0).
1381 if (edgeflag_in_clipmask
) {
1382 LLVMValueRef edge
= lp_build_const_int_vec(gallivm
, bldivec
.type
,
1383 1LL << DRAW_TOTAL_CLIP_PLANES
);
1384 clipmask_bool
= LLVMBuildXor(builder
, clipmask_bool
, edge
, "");
1388 * XXX: probably should mask off bits from the mask which come from
1389 * vertices which were beyond the count (i.e. indices_valid for
1390 * linear fetches, for elts ones we don't have the correct mask
1391 * right now). Otherwise might run the pipeline for nothing,
1392 * though everything should still work.
1394 ret
= lp_build_any_true_range(&bldivec
, vs_type
.length
, clipmask_bool
);
1395 ret
= LLVMBuildZExt(builder
, ret
, int8_type
, "");
1400 draw_gs_llvm_fetch_input(const struct lp_build_tgsi_gs_iface
*gs_iface
,
1401 struct lp_build_tgsi_context
* bld_base
,
1402 boolean is_vindex_indirect
,
1403 LLVMValueRef vertex_index
,
1404 boolean is_aindex_indirect
,
1405 LLVMValueRef attrib_index
,
1406 LLVMValueRef swizzle_index
)
1408 const struct draw_gs_llvm_iface
*gs
= draw_gs_llvm_iface(gs_iface
);
1409 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
1410 LLVMBuilderRef builder
= gallivm
->builder
;
1411 LLVMValueRef indices
[3];
1413 struct lp_type type
= bld_base
->base
.type
;
1415 if (is_vindex_indirect
|| is_aindex_indirect
) {
1417 res
= bld_base
->base
.zero
;
1418 for (i
= 0; i
< type
.length
; ++i
) {
1419 LLVMValueRef idx
= lp_build_const_int32(gallivm
, i
);
1420 LLVMValueRef vert_chan_index
= vertex_index
;
1421 LLVMValueRef attr_chan_index
= attrib_index
;
1422 LLVMValueRef channel_vec
, value
;
1424 if (is_vindex_indirect
) {
1425 vert_chan_index
= LLVMBuildExtractElement(builder
,
1426 vertex_index
, idx
, "");
1428 if (is_aindex_indirect
) {
1429 attr_chan_index
= LLVMBuildExtractElement(builder
,
1430 attrib_index
, idx
, "");
1433 indices
[0] = vert_chan_index
;
1434 indices
[1] = attr_chan_index
;
1435 indices
[2] = swizzle_index
;
1437 channel_vec
= LLVMBuildGEP(builder
, gs
->input
, indices
, 3, "");
1438 channel_vec
= LLVMBuildLoad(builder
, channel_vec
, "");
1439 value
= LLVMBuildExtractElement(builder
, channel_vec
, idx
, "");
1441 res
= LLVMBuildInsertElement(builder
, res
, value
, idx
, "");
1444 indices
[0] = vertex_index
;
1445 indices
[1] = attrib_index
;
1446 indices
[2] = swizzle_index
;
1448 res
= LLVMBuildGEP(builder
, gs
->input
, indices
, 3, "");
1449 res
= LLVMBuildLoad(builder
, res
, "");
1456 draw_gs_llvm_emit_vertex(const struct lp_build_tgsi_gs_iface
*gs_base
,
1457 struct lp_build_tgsi_context
* bld_base
,
1458 LLVMValueRef (*outputs
)[4],
1459 LLVMValueRef emitted_vertices_vec
)
1461 const struct draw_gs_llvm_iface
*gs_iface
= draw_gs_llvm_iface(gs_base
);
1462 struct draw_gs_llvm_variant
*variant
= gs_iface
->variant
;
1463 struct gallivm_state
*gallivm
= variant
->gallivm
;
1464 LLVMBuilderRef builder
= gallivm
->builder
;
1465 struct lp_type gs_type
= bld_base
->base
.type
;
1466 LLVMValueRef clipmask
= lp_build_const_int_vec(gallivm
,
1467 lp_int_type(gs_type
), 0);
1468 LLVMValueRef indices
[LP_MAX_VECTOR_LENGTH
];
1469 LLVMValueRef next_prim_offset
=
1470 lp_build_const_int32(gallivm
, variant
->shader
->base
.primitive_boundary
);
1471 LLVMValueRef io
= variant
->io_ptr
;
1473 const struct tgsi_shader_info
*gs_info
= &variant
->shader
->base
.info
;
1475 for (i
= 0; i
< gs_type
.length
; ++i
) {
1476 LLVMValueRef ind
= lp_build_const_int32(gallivm
, i
);
1477 LLVMValueRef currently_emitted
=
1478 LLVMBuildExtractElement(builder
, emitted_vertices_vec
, ind
, "");
1479 indices
[i
] = LLVMBuildMul(builder
, ind
, next_prim_offset
, "");
1480 indices
[i
] = LLVMBuildAdd(builder
, indices
[i
], currently_emitted
, "");
1483 convert_to_aos(gallivm
, io
, indices
,
1485 gs_info
->num_outputs
, gs_type
,
1490 draw_gs_llvm_end_primitive(const struct lp_build_tgsi_gs_iface
*gs_base
,
1491 struct lp_build_tgsi_context
* bld_base
,
1492 LLVMValueRef verts_per_prim_vec
,
1493 LLVMValueRef emitted_prims_vec
)
1495 const struct draw_gs_llvm_iface
*gs_iface
= draw_gs_llvm_iface(gs_base
);
1496 struct draw_gs_llvm_variant
*variant
= gs_iface
->variant
;
1497 struct gallivm_state
*gallivm
= variant
->gallivm
;
1498 LLVMBuilderRef builder
= gallivm
->builder
;
1499 LLVMValueRef prim_lengts_ptr
=
1500 draw_gs_jit_prim_lengths(variant
->gallivm
, variant
->context_ptr
);
1503 for (i
= 0; i
< bld_base
->base
.type
.length
; ++i
) {
1504 LLVMValueRef ind
= lp_build_const_int32(gallivm
, i
);
1505 LLVMValueRef prims_emitted
=
1506 LLVMBuildExtractElement(builder
, emitted_prims_vec
, ind
, "");
1507 LLVMValueRef store_ptr
;
1508 LLVMValueRef num_vertices
=
1509 LLVMBuildExtractElement(builder
, verts_per_prim_vec
, ind
, "");
1511 store_ptr
= LLVMBuildGEP(builder
, prim_lengts_ptr
, &prims_emitted
, 1, "");
1512 store_ptr
= LLVMBuildLoad(builder
, store_ptr
, "");
1513 store_ptr
= LLVMBuildGEP(builder
, store_ptr
, &ind
, 1, "");
1514 LLVMBuildStore(builder
, num_vertices
, store_ptr
);
1519 draw_gs_llvm_epilogue(const struct lp_build_tgsi_gs_iface
*gs_base
,
1520 struct lp_build_tgsi_context
* bld_base
,
1521 LLVMValueRef total_emitted_vertices_vec
,
1522 LLVMValueRef emitted_prims_vec
)
1524 const struct draw_gs_llvm_iface
*gs_iface
= draw_gs_llvm_iface(gs_base
);
1525 struct draw_gs_llvm_variant
*variant
= gs_iface
->variant
;
1526 struct gallivm_state
*gallivm
= variant
->gallivm
;
1527 LLVMBuilderRef builder
= gallivm
->builder
;
1528 LLVMValueRef emitted_verts_ptr
=
1529 draw_gs_jit_emitted_vertices(gallivm
, variant
->context_ptr
);
1530 LLVMValueRef emitted_prims_ptr
=
1531 draw_gs_jit_emitted_prims(gallivm
, variant
->context_ptr
);
1532 LLVMValueRef zero
= lp_build_const_int32(gallivm
, 0);
1534 emitted_verts_ptr
= LLVMBuildGEP(builder
, emitted_verts_ptr
, &zero
, 0, "");
1535 emitted_prims_ptr
= LLVMBuildGEP(builder
, emitted_prims_ptr
, &zero
, 0, "");
1537 LLVMBuildStore(builder
, total_emitted_vertices_vec
, emitted_verts_ptr
);
1538 LLVMBuildStore(builder
, emitted_prims_vec
, emitted_prims_ptr
);
1542 draw_llvm_generate(struct draw_llvm
*llvm
, struct draw_llvm_variant
*variant
)
1544 struct gallivm_state
*gallivm
= variant
->gallivm
;
1545 LLVMContextRef context
= gallivm
->context
;
1546 LLVMTypeRef int32_type
= LLVMInt32TypeInContext(context
);
1547 LLVMTypeRef arg_types
[11];
1548 unsigned num_arg_types
= ARRAY_SIZE(arg_types
);
1549 LLVMTypeRef func_type
;
1550 LLVMValueRef context_ptr
;
1551 LLVMBasicBlockRef block
;
1552 LLVMBuilderRef builder
;
1554 struct lp_type vs_type
;
1555 LLVMValueRef count
, fetch_elts
, start_or_maxelt
;
1556 LLVMValueRef vertex_id_offset
, start_instance
;
1557 LLVMValueRef stride
, step
, io_itr
;
1558 LLVMValueRef ind_vec
, start_vec
, have_elts
, fetch_max
, tmp
;
1559 LLVMValueRef io_ptr
, vbuffers_ptr
, vb_ptr
;
1560 LLVMValueRef vb_stride
[PIPE_MAX_ATTRIBS
];
1561 LLVMValueRef map_ptr
[PIPE_MAX_ATTRIBS
];
1562 LLVMValueRef buffer_size_adj
[PIPE_MAX_ATTRIBS
];
1563 LLVMValueRef instance_index
[PIPE_MAX_ATTRIBS
];
1564 LLVMValueRef fake_buf_ptr
, fake_buf
;
1566 struct draw_context
*draw
= llvm
->draw
;
1567 const struct tgsi_shader_info
*vs_info
= &draw
->vs
.vertex_shader
->info
;
1569 struct lp_build_context bld
, blduivec
;
1570 struct lp_build_loop_state lp_loop
;
1571 struct lp_build_if_state if_ctx
;
1572 const int vector_length
= lp_native_vector_width
/ 32;
1573 LLVMValueRef outputs
[PIPE_MAX_SHADER_OUTPUTS
][TGSI_NUM_CHANNELS
];
1574 struct lp_build_sampler_soa
*sampler
= 0;
1575 LLVMValueRef ret
, clipmask_bool_ptr
;
1576 struct draw_llvm_variant_key
*key
= &variant
->key
;
1577 /* If geometry shader is present we need to skip both the viewport
1578 * transformation and clipping otherwise the inputs to the geometry
1579 * shader will be incorrect.
1580 * The code can't handle vp transform when vs writes vp index neither
1581 * (though this would be fixable here, but couldn't just broadcast
1584 const boolean bypass_viewport
= key
->has_gs
|| key
->bypass_viewport
||
1585 vs_info
->writes_viewport_index
;
1586 const boolean enable_cliptest
= !key
->has_gs
&& (key
->clip_xy
||
1589 key
->need_edgeflags
);
1590 LLVMValueRef variant_func
;
1591 const unsigned pos
= draw
->vs
.position_output
;
1592 const unsigned cv
= draw
->vs
.clipvertex_output
;
1593 boolean have_clipdist
= FALSE
;
1594 struct lp_bld_tgsi_system_values system_values
;
1596 memset(&system_values
, 0, sizeof(system_values
));
1598 snprintf(func_name
, sizeof(func_name
), "draw_llvm_vs_variant%u",
1599 variant
->shader
->variants_cached
);
1602 arg_types
[i
++] = get_context_ptr_type(variant
); /* context */
1603 arg_types
[i
++] = get_vertex_header_ptr_type(variant
); /* vertex_header */
1604 arg_types
[i
++] = get_buffer_ptr_type(variant
); /* vbuffers */
1605 arg_types
[i
++] = int32_type
; /* count */
1606 arg_types
[i
++] = int32_type
; /* start/fetch_elt_max */
1607 arg_types
[i
++] = int32_type
; /* stride */
1608 arg_types
[i
++] = get_vb_ptr_type(variant
); /* pipe_vertex_buffer's */
1609 arg_types
[i
++] = int32_type
; /* instance_id */
1610 arg_types
[i
++] = int32_type
; /* vertex_id_offset */
1611 arg_types
[i
++] = int32_type
; /* start_instance */
1612 arg_types
[i
++] = LLVMPointerType(int32_type
, 0); /* fetch_elts */
1614 func_type
= LLVMFunctionType(LLVMInt8TypeInContext(context
),
1615 arg_types
, num_arg_types
, 0);
1617 variant_func
= LLVMAddFunction(gallivm
->module
, func_name
, func_type
);
1618 variant
->function
= variant_func
;
1620 LLVMSetFunctionCallConv(variant_func
, LLVMCCallConv
);
1621 for (i
= 0; i
< num_arg_types
; ++i
)
1622 if (LLVMGetTypeKind(arg_types
[i
]) == LLVMPointerTypeKind
)
1623 lp_add_function_attr(variant_func
, i
+ 1, LP_FUNC_ATTR_NOALIAS
);
1625 context_ptr
= LLVMGetParam(variant_func
, 0);
1626 io_ptr
= LLVMGetParam(variant_func
, 1);
1627 vbuffers_ptr
= LLVMGetParam(variant_func
, 2);
1628 count
= LLVMGetParam(variant_func
, 3);
1630 * XXX: the maxelt part is unused. Not really useful, since we cannot
1631 * get index buffer overflows due to vsplit (which provides its own
1632 * elts buffer, with a different size than what's passed in here).
1634 start_or_maxelt
= LLVMGetParam(variant_func
, 4);
1636 * XXX: stride is actually unused. The stride we use is strictly calculated
1637 * from the number of outputs (including the draw_extra outputs).
1638 * Should probably fix some day (we need a new vs just because of extra
1639 * outputs which the generated vs won't touch).
1641 stride
= LLVMGetParam(variant_func
, 5);
1642 vb_ptr
= LLVMGetParam(variant_func
, 6);
1643 system_values
.instance_id
= LLVMGetParam(variant_func
, 7);
1644 vertex_id_offset
= LLVMGetParam(variant_func
, 8);
1645 start_instance
= LLVMGetParam(variant_func
, 9);
1646 fetch_elts
= LLVMGetParam(variant_func
, 10);
1648 lp_build_name(context_ptr
, "context");
1649 lp_build_name(io_ptr
, "io");
1650 lp_build_name(vbuffers_ptr
, "vbuffers");
1651 lp_build_name(count
, "count");
1652 lp_build_name(start_or_maxelt
, "start_or_maxelt");
1653 lp_build_name(stride
, "stride");
1654 lp_build_name(vb_ptr
, "vb");
1655 lp_build_name(system_values
.instance_id
, "instance_id");
1656 lp_build_name(vertex_id_offset
, "vertex_id_offset");
1657 lp_build_name(start_instance
, "start_instance");
1658 lp_build_name(fetch_elts
, "fetch_elts");
1664 block
= LLVMAppendBasicBlockInContext(gallivm
->context
, variant_func
, "entry");
1665 builder
= gallivm
->builder
;
1666 LLVMPositionBuilderAtEnd(builder
, block
);
1668 memset(&vs_type
, 0, sizeof vs_type
);
1669 vs_type
.floating
= TRUE
; /* floating point values */
1670 vs_type
.sign
= TRUE
; /* values are signed */
1671 vs_type
.norm
= FALSE
; /* values are not limited to [0,1] or [-1,1] */
1672 vs_type
.width
= 32; /* 32-bit float */
1673 vs_type
.length
= vector_length
;
1675 lp_build_context_init(&bld
, gallivm
, lp_type_uint(32));
1676 lp_build_context_init(&blduivec
, gallivm
, lp_uint_type(vs_type
));
1678 /* hold temporary "bool" clipmask */
1679 clipmask_bool_ptr
= lp_build_alloca(gallivm
, blduivec
.vec_type
, "");
1681 fake_buf
= lp_build_alloca_undef(gallivm
,
1682 LLVMVectorType(LLVMInt64TypeInContext(context
), 4), "");
1683 fake_buf
= LLVMBuildBitCast(builder
, fake_buf
,
1684 LLVMPointerType(LLVMInt8TypeInContext(context
), 0), "");
1685 fake_buf_ptr
= LLVMBuildGEP(builder
, fake_buf
, &bld
.zero
, 1, "");
1687 /* code generated texture sampling */
1688 sampler
= draw_llvm_sampler_soa_create(draw_llvm_variant_key_samplers(key
));
1690 step
= lp_build_const_int32(gallivm
, vector_length
);
1692 ind_vec
= blduivec
.undef
;
1693 for (i
= 0; i
< vs_type
.length
; i
++) {
1694 LLVMValueRef index
= lp_build_const_int32(gallivm
, i
);
1695 ind_vec
= LLVMBuildInsertElement(builder
, ind_vec
, index
, index
, "");
1698 have_elts
= LLVMBuildICmp(builder
, LLVMIntNE
,
1699 LLVMConstPointerNull(arg_types
[10]), fetch_elts
, "");
1701 fetch_max
= LLVMBuildSub(builder
, count
, bld
.one
, "fetch_max");
1702 fetch_max
= lp_build_broadcast_scalar(&blduivec
, fetch_max
);
1704 * Only needed for non-indexed path.
1706 start_vec
= lp_build_broadcast_scalar(&blduivec
, start_or_maxelt
);
1709 * Pre-calculate everything which is constant per shader invocation.
1711 for (j
= 0; j
< key
->nr_vertex_elements
; ++j
) {
1712 LLVMValueRef vb_buffer_offset
, buffer_size
, temp_ptr
;
1713 LLVMValueRef vb_info
, vbuffer_ptr
, buf_offset
, ofbit
;
1714 struct pipe_vertex_element
*velem
= &key
->vertex_element
[j
];
1715 LLVMValueRef vb_index
=
1716 lp_build_const_int32(gallivm
, velem
->vertex_buffer_index
);
1717 LLVMValueRef bsize
= lp_build_const_int32(gallivm
,
1718 util_format_get_blocksize(velem
->src_format
));
1719 LLVMValueRef src_offset
= lp_build_const_int32(gallivm
,
1721 struct lp_build_if_state if_ctx
;
1723 if (velem
->src_format
!= PIPE_FORMAT_NONE
) {
1724 vbuffer_ptr
= LLVMBuildGEP(builder
, vbuffers_ptr
, &vb_index
, 1, "");
1725 vb_info
= LLVMBuildGEP(builder
, vb_ptr
, &vb_index
, 1, "");
1726 vb_stride
[j
] = draw_jit_vbuffer_stride(gallivm
, vb_info
);
1727 vb_stride
[j
] = LLVMBuildZExt(gallivm
->builder
, vb_stride
[j
],
1728 LLVMInt32TypeInContext(context
), "");
1729 vb_buffer_offset
= draw_jit_vbuffer_offset(gallivm
, vb_info
);
1730 map_ptr
[j
] = draw_jit_dvbuffer_map(gallivm
, vbuffer_ptr
);
1731 buffer_size
= draw_jit_dvbuffer_size(gallivm
, vbuffer_ptr
);
1735 * We'll set buffer_size_adj to zero if we have of, so it will
1736 * always overflow later automatically without having to keep ofbit.
1737 * Overflows (with normal wraparound) doing the actual offset
1738 * calculation should be ok, just not for the buffer size calc.
1739 * It would also be possible to detect such overflows and return
1740 * zeros if that happens, but this would be more complex.
1742 buf_offset
= lp_build_add(&bld
, vb_buffer_offset
, src_offset
);
1743 tmp
= lp_build_sub(&bld
, bsize
, bld
.one
);
1744 buffer_size_adj
[j
] = lp_build_usub_overflow(gallivm
, buffer_size
, tmp
,
1746 buffer_size_adj
[j
] = lp_build_usub_overflow(gallivm
, buffer_size_adj
[j
],
1747 buf_offset
, &ofbit
);
1750 * We can't easily set fake vertex buffers outside the generated code.
1751 * Hence, set fake vertex buffers here instead basically, so fetch
1752 * code can always fetch using offset 0, eliminating all control flow
1753 * inside the main loop.
1754 * (Alternatively, could have control flow per vector skipping fetch
1755 * if ofbit is true.)
1757 if (velem
->instance_divisor
) {
1759 * Index is equal to the start instance plus the number of current
1760 * instance divided by the divisor. In this case we compute it as:
1761 * index = start_instance + (instance_id / divisor).
1762 * Note we could actually do the fetch here, outside the loop -
1763 * it's all constant, hopefully llvm recognizes this.
1765 LLVMValueRef current_instance
;
1766 current_instance
= LLVMBuildUDiv(builder
, system_values
.instance_id
,
1767 lp_build_const_int32(gallivm
,
1768 velem
->instance_divisor
),
1769 "instance_divisor");
1770 instance_index
[j
] = lp_build_uadd_overflow(gallivm
, start_instance
,
1771 current_instance
, &ofbit
);
1774 buffer_size_adj
[j
] = LLVMBuildSelect(builder
, ofbit
, bld
.zero
,
1775 buffer_size_adj
[j
], "");
1777 temp_ptr
= lp_build_alloca_undef(gallivm
,
1778 LLVMPointerType(LLVMInt8TypeInContext(context
), 0), "");
1780 lp_build_if(&if_ctx
, gallivm
, ofbit
);
1782 LLVMBuildStore(builder
, fake_buf_ptr
, temp_ptr
);
1784 lp_build_else(&if_ctx
);
1786 map_ptr
[j
] = LLVMBuildGEP(builder
, map_ptr
[j
], &buf_offset
, 1, "");
1787 LLVMBuildStore(builder
, map_ptr
[j
], temp_ptr
);
1789 lp_build_endif(&if_ctx
);
1790 map_ptr
[j
] = LLVMBuildLoad(builder
, temp_ptr
, "map_ptr");
1793 lp_build_printf(gallivm
, "velem %d, vbuf index = %u, vb_stride = %u\n",
1794 lp_build_const_int32(gallivm
, j
),
1795 vb_index
, vb_stride
[j
]);
1796 lp_build_printf(gallivm
,
1797 " vb_buffer_offset = %u, src_offset = %u, buf_offset = %u\n",
1798 vb_buffer_offset
, src_offset
, buf_offset
);
1799 lp_build_printf(gallivm
, " buffer size = %u, blocksize = %u\n",
1800 buffer_size
, bsize
);
1801 lp_build_printf(gallivm
, " instance_id = %u\n", system_values
.instance_id
);
1806 lp_build_loop_begin(&lp_loop
, gallivm
, bld
.zero
);
1808 LLVMValueRef inputs
[PIPE_MAX_SHADER_INPUTS
][TGSI_NUM_CHANNELS
];
1810 LLVMValueRef clipmask
; /* holds the clipmask value */
1811 LLVMValueRef true_index_array
, index_store
;
1812 const LLVMValueRef (*ptr_aos
)[TGSI_NUM_CHANNELS
];
1814 io_itr
= lp_loop
.counter
;
1816 io
= LLVMBuildGEP(builder
, io_ptr
, &io_itr
, 1, "");
1818 lp_build_printf(gallivm
, " --- io %d = %p, loop counter %d\n",
1819 io_itr
, io
, lp_loop
.counter
);
1822 true_index_array
= lp_build_broadcast_scalar(&blduivec
, lp_loop
.counter
);
1823 true_index_array
= LLVMBuildAdd(builder
, true_index_array
, ind_vec
, "");
1825 LLVMValueRef exec_mask
= lp_build_cmp(&blduivec
, PIPE_FUNC_LEQUAL
, true_index_array
, fetch_max
);
1827 * Limit indices to fetch_max, otherwise might try to access indices
1828 * beyond index buffer (or rather vsplit elt buffer) size.
1829 * Could probably safely (?) skip this for non-indexed draws and
1830 * simplify things minimally (by removing it could combine the ind_vec
1831 * and start_vec adds). I think the only effect for non-indexed draws will
1832 * be that for the invalid elements they will be all fetched from the
1833 * same location as the last valid one, but noone should really care.
1835 true_index_array
= lp_build_min(&blduivec
, true_index_array
, fetch_max
);
1837 index_store
= lp_build_alloca_undef(gallivm
, blduivec
.vec_type
, "index_store");
1839 lp_build_if(&if_ctx
, gallivm
, have_elts
);
1842 * Note: you'd expect some comparison/clamp against fetch_elt_max
1844 * There used to be one here but it was incorrect: overflow was
1845 * detected if index > fetch_elt_max - but the correct condition
1846 * would be index >= fetch_elt_max (since this is just size of elts
1847 * buffer / element size).
1848 * Using the correct condition however will cause failures - due to
1849 * vsplit/vcache code which rebases indices. So, as an example, if
1850 * fetch_elt_max is just 1 and fetch_count 2, vsplit cache will
1851 * replace all invalid indices with 0 - which in case of elt_bias
1852 * not being zero will get a different fetch index than the valid
1853 * index 0. So, just rely on vsplit code preventing out-of-bounds
1854 * fetches. This is also why it's safe to do elts fetch even if there
1855 * was no index buffer bound - the real buffer is never seen here, at
1856 * least not if there are index buffer overflows...
1860 * XXX should not have to do this, as scale can be handled
1861 * natively by loads (hits asserts though).
1863 tmp
= lp_build_shl_imm(&blduivec
, true_index_array
, 2);
1864 fetch_elts
= LLVMBuildBitCast(builder
, fetch_elts
,
1865 LLVMPointerType(LLVMInt8TypeInContext(context
),
1867 tmp
= lp_build_gather(gallivm
, vs_type
.length
,
1869 fetch_elts
, tmp
, FALSE
);
1870 LLVMBuildStore(builder
, tmp
, index_store
);
1872 lp_build_else(&if_ctx
);
1874 tmp
= LLVMBuildAdd(builder
, true_index_array
, start_vec
, "");
1875 LLVMBuildStore(builder
, tmp
, index_store
);
1877 lp_build_endif(&if_ctx
);
1879 true_index_array
= LLVMBuildLoad(builder
, index_store
, "");
1881 for (j
= 0; j
< key
->nr_vertex_elements
; ++j
) {
1882 struct pipe_vertex_element
*velem
= &key
->vertex_element
[j
];
1883 const struct util_format_description
*format_desc
=
1884 util_format_description(velem
->src_format
);
1886 if (format_desc
->format
== PIPE_FORMAT_NONE
) {
1887 for (i
= 0; i
< TGSI_NUM_CHANNELS
; i
++) {
1888 inputs
[j
][i
] = lp_build_zero(gallivm
, vs_type
);
1891 else if (velem
->instance_divisor
) {
1892 fetch_instanced(gallivm
, format_desc
, vs_type
,
1893 vb_stride
[j
], map_ptr
[j
],
1895 inputs
[j
], instance_index
[j
]);
1898 fetch_vector(gallivm
, format_desc
, vs_type
,
1899 vb_stride
[j
], map_ptr
[j
],
1901 inputs
[j
], true_index_array
);
1905 struct lp_build_mask_context mask
;
1907 lp_build_mask_begin(&mask
, gallivm
, vs_type
, exec_mask
);
1908 /* In the paths with elts vertex id has to be unaffected by the
1909 * index bias and because indices inside our elements array have
1910 * already had index bias applied we need to subtract it here to
1911 * get back to the original index.
1912 * in the linear paths vertex id has to be unaffected by the
1913 * original start index and because we abuse the 'start' variable
1914 * to either represent the actual start index or the index at which
1915 * the primitive was split (we split rendering into chunks of at
1916 * most 4095-vertices) we need to back out the original start
1917 * index out of our vertex id here.
1919 system_values
.basevertex
= lp_build_broadcast_scalar(&blduivec
,
1921 system_values
.vertex_id
= true_index_array
;
1922 system_values
.vertex_id_nobase
= LLVMBuildSub(builder
, true_index_array
,
1923 system_values
.basevertex
, "");
1925 ptr_aos
= (const LLVMValueRef (*)[TGSI_NUM_CHANNELS
]) inputs
;
1926 generate_vs(variant
,
1934 key
->clamp_vertex_color
,
1937 lp_build_mask_end(&mask
);
1938 if (pos
!= -1 && cv
!= -1) {
1939 /* store original positions in clip before further manipulation */
1940 store_clip(gallivm
, vs_type
, io
, outputs
, pos
);
1943 if (enable_cliptest
) {
1944 LLVMValueRef temp
= LLVMBuildLoad(builder
, clipmask_bool_ptr
, "");
1945 /* allocate clipmask, assign it integer type */
1946 clipmask
= generate_clipmask(llvm
,
1951 context_ptr
, &have_clipdist
);
1952 temp
= LLVMBuildOr(builder
, clipmask
, temp
, "");
1953 /* store temporary clipping boolean value */
1954 LLVMBuildStore(builder
, temp
, clipmask_bool_ptr
);
1957 clipmask
= blduivec
.zero
;
1960 /* do viewport mapping */
1961 if (!bypass_viewport
) {
1962 generate_viewport(variant
, builder
, vs_type
, outputs
, context_ptr
);
1966 clipmask
= blduivec
.zero
;
1969 /* store clipmask in vertex header,
1970 * original positions in clip
1971 * and transformed positions in data
1973 convert_to_aos(gallivm
, io
, NULL
, outputs
, clipmask
,
1974 vs_info
->num_outputs
, vs_type
,
1975 enable_cliptest
&& key
->need_edgeflags
);
1977 lp_build_loop_end_cond(&lp_loop
, count
, step
, LLVMIntUGE
);
1979 sampler
->destroy(sampler
);
1981 /* return clipping boolean value for function */
1982 ret
= clipmask_booli8(gallivm
, vs_type
, clipmask_bool_ptr
,
1983 enable_cliptest
&& key
->need_edgeflags
);
1985 LLVMBuildRet(builder
, ret
);
1987 gallivm_verify_function(gallivm
, variant_func
);
1991 struct draw_llvm_variant_key
*
1992 draw_llvm_make_variant_key(struct draw_llvm
*llvm
, char *store
)
1995 struct draw_llvm_variant_key
*key
;
1996 struct draw_sampler_static_state
*draw_sampler
;
1998 key
= (struct draw_llvm_variant_key
*)store
;
2000 memset(key
, 0, offsetof(struct draw_llvm_variant_key
, vertex_element
[0]));
2002 key
->clamp_vertex_color
= llvm
->draw
->rasterizer
->clamp_vertex_color
; /**/
2004 /* will have to rig this up properly later */
2005 key
->clip_xy
= llvm
->draw
->clip_xy
;
2006 key
->clip_z
= llvm
->draw
->clip_z
;
2007 key
->clip_user
= llvm
->draw
->clip_user
;
2008 key
->bypass_viewport
= llvm
->draw
->bypass_viewport
;
2009 key
->clip_halfz
= llvm
->draw
->rasterizer
->clip_halfz
;
2010 /* XXX assumes edgeflag output not at 0 */
2011 key
->need_edgeflags
= (llvm
->draw
->vs
.edgeflag_output
? TRUE
: FALSE
);
2012 key
->ucp_enable
= llvm
->draw
->rasterizer
->clip_plane_enable
;
2013 key
->has_gs
= llvm
->draw
->gs
.geometry_shader
!= NULL
;
2014 key
->num_outputs
= draw_total_vs_outputs(llvm
->draw
);
2016 /* All variants of this shader will have the same value for
2017 * nr_samplers. Not yet trying to compact away holes in the
2020 key
->nr_samplers
= llvm
->draw
->vs
.vertex_shader
->info
.file_max
[TGSI_FILE_SAMPLER
] + 1;
2021 if (llvm
->draw
->vs
.vertex_shader
->info
.file_max
[TGSI_FILE_SAMPLER_VIEW
] != -1) {
2022 key
->nr_sampler_views
=
2023 llvm
->draw
->vs
.vertex_shader
->info
.file_max
[TGSI_FILE_SAMPLER_VIEW
] + 1;
2026 key
->nr_sampler_views
= key
->nr_samplers
;
2029 /* Presumably all variants of the shader should have the same
2030 * number of vertex elements - ie the number of shader inputs.
2031 * NOTE: we NEED to store the needed number of needed inputs
2032 * here, not the number of provided elements to match keysize
2033 * (and the offset of sampler state in the key).
2034 * If we have excess number of vertex elements, this is valid,
2035 * but the excess ones don't matter.
2036 * If we don't have enough vertex elements (which looks not really
2037 * valid but we'll handle it gracefully) fill out missing ones with
2038 * zero (we'll recognize these later by PIPE_FORMAT_NONE).
2040 key
->nr_vertex_elements
=
2041 llvm
->draw
->vs
.vertex_shader
->info
.file_max
[TGSI_FILE_INPUT
] + 1;
2043 if (llvm
->draw
->pt
.nr_vertex_elements
< key
->nr_vertex_elements
) {
2044 debug_printf("draw: vs with %d inputs but only have %d vertex elements\n",
2045 key
->nr_vertex_elements
, llvm
->draw
->pt
.nr_vertex_elements
);
2046 memset(key
->vertex_element
, 0,
2047 sizeof(struct pipe_vertex_element
) * key
->nr_vertex_elements
);
2049 memcpy(key
->vertex_element
,
2050 llvm
->draw
->pt
.vertex_element
,
2051 sizeof(struct pipe_vertex_element
) *
2052 MIN2(key
->nr_vertex_elements
, llvm
->draw
->pt
.nr_vertex_elements
));
2054 draw_sampler
= draw_llvm_variant_key_samplers(key
);
2055 memset(draw_sampler
, 0,
2056 MAX2(key
->nr_samplers
, key
->nr_sampler_views
) * sizeof *draw_sampler
);
2058 for (i
= 0 ; i
< key
->nr_samplers
; i
++) {
2059 lp_sampler_static_sampler_state(&draw_sampler
[i
].sampler_state
,
2060 llvm
->draw
->samplers
[PIPE_SHADER_VERTEX
][i
]);
2062 for (i
= 0 ; i
< key
->nr_sampler_views
; i
++) {
2063 lp_sampler_static_texture_state(&draw_sampler
[i
].texture_state
,
2064 llvm
->draw
->sampler_views
[PIPE_SHADER_VERTEX
][i
]);
2072 draw_llvm_dump_variant_key(struct draw_llvm_variant_key
*key
)
2075 struct draw_sampler_static_state
*sampler
= draw_llvm_variant_key_samplers(key
);
2077 debug_printf("clamp_vertex_color = %u\n", key
->clamp_vertex_color
);
2078 debug_printf("clip_xy = %u\n", key
->clip_xy
);
2079 debug_printf("clip_z = %u\n", key
->clip_z
);
2080 debug_printf("clip_user = %u\n", key
->clip_user
);
2081 debug_printf("bypass_viewport = %u\n", key
->bypass_viewport
);
2082 debug_printf("clip_halfz = %u\n", key
->clip_halfz
);
2083 debug_printf("need_edgeflags = %u\n", key
->need_edgeflags
);
2084 debug_printf("has_gs = %u\n", key
->has_gs
);
2085 debug_printf("ucp_enable = %u\n", key
->ucp_enable
);
2087 for (i
= 0 ; i
< key
->nr_vertex_elements
; i
++) {
2088 debug_printf("vertex_element[%i].src_offset = %u\n", i
, key
->vertex_element
[i
].src_offset
);
2089 debug_printf("vertex_element[%i].instance_divisor = %u\n", i
, key
->vertex_element
[i
].instance_divisor
);
2090 debug_printf("vertex_element[%i].vertex_buffer_index = %u\n", i
, key
->vertex_element
[i
].vertex_buffer_index
);
2091 debug_printf("vertex_element[%i].src_format = %s\n", i
, util_format_name(key
->vertex_element
[i
].src_format
));
2094 for (i
= 0 ; i
< key
->nr_sampler_views
; i
++) {
2095 debug_printf("sampler[%i].src_format = %s\n", i
, util_format_name(sampler
[i
].texture_state
.format
));
2101 draw_llvm_set_mapped_texture(struct draw_context
*draw
,
2102 enum pipe_shader_type shader_stage
,
2104 uint32_t width
, uint32_t height
, uint32_t depth
,
2105 uint32_t first_level
, uint32_t last_level
,
2106 const void *base_ptr
,
2107 uint32_t row_stride
[PIPE_MAX_TEXTURE_LEVELS
],
2108 uint32_t img_stride
[PIPE_MAX_TEXTURE_LEVELS
],
2109 uint32_t mip_offsets
[PIPE_MAX_TEXTURE_LEVELS
])
2112 struct draw_jit_texture
*jit_tex
;
2114 assert(shader_stage
== PIPE_SHADER_VERTEX
||
2115 shader_stage
== PIPE_SHADER_GEOMETRY
);
2117 if (shader_stage
== PIPE_SHADER_VERTEX
) {
2118 assert(sview_idx
< ARRAY_SIZE(draw
->llvm
->jit_context
.textures
));
2120 jit_tex
= &draw
->llvm
->jit_context
.textures
[sview_idx
];
2121 } else if (shader_stage
== PIPE_SHADER_GEOMETRY
) {
2122 assert(sview_idx
< ARRAY_SIZE(draw
->llvm
->gs_jit_context
.textures
));
2124 jit_tex
= &draw
->llvm
->gs_jit_context
.textures
[sview_idx
];
2130 jit_tex
->width
= width
;
2131 jit_tex
->height
= height
;
2132 jit_tex
->depth
= depth
;
2133 jit_tex
->first_level
= first_level
;
2134 jit_tex
->last_level
= last_level
;
2135 jit_tex
->base
= base_ptr
;
2137 for (j
= first_level
; j
<= last_level
; j
++) {
2138 jit_tex
->mip_offsets
[j
] = mip_offsets
[j
];
2139 jit_tex
->row_stride
[j
] = row_stride
[j
];
2140 jit_tex
->img_stride
[j
] = img_stride
[j
];
2146 draw_llvm_set_sampler_state(struct draw_context
*draw
,
2147 enum pipe_shader_type shader_type
)
2151 if (shader_type
== PIPE_SHADER_VERTEX
) {
2152 for (i
= 0; i
< draw
->num_samplers
[PIPE_SHADER_VERTEX
]; i
++) {
2153 struct draw_jit_sampler
*jit_sam
= &draw
->llvm
->jit_context
.samplers
[i
];
2155 if (draw
->samplers
[PIPE_SHADER_VERTEX
][i
]) {
2156 const struct pipe_sampler_state
*s
2157 = draw
->samplers
[PIPE_SHADER_VERTEX
][i
];
2158 jit_sam
->min_lod
= s
->min_lod
;
2159 jit_sam
->max_lod
= s
->max_lod
;
2160 jit_sam
->lod_bias
= s
->lod_bias
;
2161 COPY_4V(jit_sam
->border_color
, s
->border_color
.f
);
2164 } else if (shader_type
== PIPE_SHADER_GEOMETRY
) {
2165 for (i
= 0; i
< draw
->num_samplers
[PIPE_SHADER_GEOMETRY
]; i
++) {
2166 struct draw_jit_sampler
*jit_sam
= &draw
->llvm
->gs_jit_context
.samplers
[i
];
2168 if (draw
->samplers
[PIPE_SHADER_GEOMETRY
][i
]) {
2169 const struct pipe_sampler_state
*s
2170 = draw
->samplers
[PIPE_SHADER_GEOMETRY
][i
];
2171 jit_sam
->min_lod
= s
->min_lod
;
2172 jit_sam
->max_lod
= s
->max_lod
;
2173 jit_sam
->lod_bias
= s
->lod_bias
;
2174 COPY_4V(jit_sam
->border_color
, s
->border_color
.f
);
2182 draw_llvm_destroy_variant(struct draw_llvm_variant
*variant
)
2184 struct draw_llvm
*llvm
= variant
->llvm
;
2186 if (gallivm_debug
& (GALLIVM_DEBUG_TGSI
| GALLIVM_DEBUG_IR
)) {
2187 debug_printf("Deleting VS variant: %u vs variants,\t%u total variants\n",
2188 variant
->shader
->variants_cached
, llvm
->nr_variants
);
2191 gallivm_destroy(variant
->gallivm
);
2193 remove_from_list(&variant
->list_item_local
);
2194 variant
->shader
->variants_cached
--;
2195 remove_from_list(&variant
->list_item_global
);
2196 llvm
->nr_variants
--;
2202 * Create LLVM types for various structures.
2205 create_gs_jit_types(struct draw_gs_llvm_variant
*var
)
2207 struct gallivm_state
*gallivm
= var
->gallivm
;
2208 LLVMTypeRef texture_type
, sampler_type
, context_type
;
2210 texture_type
= create_jit_texture_type(gallivm
, "texture");
2211 sampler_type
= create_jit_sampler_type(gallivm
, "sampler");
2213 context_type
= create_gs_jit_context_type(gallivm
,
2214 var
->shader
->base
.vector_length
,
2215 texture_type
, sampler_type
,
2216 "draw_gs_jit_context");
2217 var
->context_ptr_type
= LLVMPointerType(context_type
, 0);
2219 var
->input_array_type
= create_gs_jit_input_type(gallivm
);
2223 get_gs_context_ptr_type(struct draw_gs_llvm_variant
*variant
)
2225 if (!variant
->context_ptr_type
)
2226 create_gs_jit_types(variant
);
2227 return variant
->context_ptr_type
;
2231 generate_mask_value(struct draw_gs_llvm_variant
*variant
,
2232 struct lp_type gs_type
)
2234 struct gallivm_state
*gallivm
= variant
->gallivm
;
2235 LLVMBuilderRef builder
= gallivm
->builder
;
2236 struct lp_type mask_type
= lp_int_type(gs_type
);
2237 LLVMValueRef num_prims
;
2238 LLVMValueRef mask_val
= lp_build_const_vec(gallivm
, mask_type
, 0);
2241 num_prims
= lp_build_broadcast(gallivm
, lp_build_vec_type(gallivm
, mask_type
),
2242 variant
->num_prims
);
2243 for (i
= 0; i
< gs_type
.length
; i
++) {
2244 LLVMValueRef idx
= lp_build_const_int32(gallivm
, i
);
2245 mask_val
= LLVMBuildInsertElement(builder
, mask_val
, idx
, idx
, "");
2247 mask_val
= lp_build_compare(gallivm
, mask_type
,
2248 PIPE_FUNC_GREATER
, num_prims
, mask_val
);
2254 draw_gs_llvm_generate(struct draw_llvm
*llvm
,
2255 struct draw_gs_llvm_variant
*variant
)
2257 struct gallivm_state
*gallivm
= variant
->gallivm
;
2258 LLVMContextRef context
= gallivm
->context
;
2259 LLVMTypeRef int32_type
= LLVMInt32TypeInContext(context
);
2260 LLVMTypeRef arg_types
[7];
2261 LLVMTypeRef func_type
;
2262 LLVMValueRef variant_func
;
2263 LLVMValueRef context_ptr
;
2264 LLVMValueRef prim_id_ptr
;
2265 LLVMBasicBlockRef block
;
2266 LLVMBuilderRef builder
;
2267 LLVMValueRef io_ptr
, input_array
, num_prims
, mask_val
;
2268 struct lp_build_sampler_soa
*sampler
= 0;
2269 struct lp_build_context bld
;
2270 struct lp_bld_tgsi_system_values system_values
;
2272 struct lp_type gs_type
;
2274 struct draw_gs_llvm_iface gs_iface
;
2275 const struct tgsi_token
*tokens
= variant
->shader
->base
.state
.tokens
;
2276 LLVMValueRef consts_ptr
, num_consts_ptr
;
2277 LLVMValueRef ssbos_ptr
, num_ssbos_ptr
;
2278 LLVMValueRef outputs
[PIPE_MAX_SHADER_OUTPUTS
][TGSI_NUM_CHANNELS
];
2279 struct lp_build_mask_context mask
;
2280 const struct tgsi_shader_info
*gs_info
= &variant
->shader
->base
.info
;
2281 unsigned vector_length
= variant
->shader
->base
.vector_length
;
2283 memset(&system_values
, 0, sizeof(system_values
));
2285 snprintf(func_name
, sizeof(func_name
), "draw_llvm_gs_variant%u",
2286 variant
->shader
->variants_cached
);
2288 assert(variant
->vertex_header_ptr_type
);
2290 arg_types
[0] = get_gs_context_ptr_type(variant
); /* context */
2291 arg_types
[1] = variant
->input_array_type
; /* input */
2292 arg_types
[2] = variant
->vertex_header_ptr_type
; /* vertex_header */
2293 arg_types
[3] = int32_type
; /* num_prims */
2294 arg_types
[4] = int32_type
; /* instance_id */
2295 arg_types
[5] = LLVMPointerType(
2296 LLVMVectorType(int32_type
, vector_length
), 0); /* prim_id_ptr */
2297 arg_types
[6] = int32_type
;
2299 func_type
= LLVMFunctionType(int32_type
, arg_types
, ARRAY_SIZE(arg_types
), 0);
2301 variant_func
= LLVMAddFunction(gallivm
->module
, func_name
, func_type
);
2303 variant
->function
= variant_func
;
2305 LLVMSetFunctionCallConv(variant_func
, LLVMCCallConv
);
2307 for (i
= 0; i
< ARRAY_SIZE(arg_types
); ++i
)
2308 if (LLVMGetTypeKind(arg_types
[i
]) == LLVMPointerTypeKind
)
2309 lp_add_function_attr(variant_func
, i
+ 1, LP_FUNC_ATTR_NOALIAS
);
2311 context_ptr
= LLVMGetParam(variant_func
, 0);
2312 input_array
= LLVMGetParam(variant_func
, 1);
2313 io_ptr
= LLVMGetParam(variant_func
, 2);
2314 num_prims
= LLVMGetParam(variant_func
, 3);
2315 system_values
.instance_id
= LLVMGetParam(variant_func
, 4);
2316 prim_id_ptr
= LLVMGetParam(variant_func
, 5);
2317 system_values
.invocation_id
= LLVMGetParam(variant_func
, 6);
2319 lp_build_name(context_ptr
, "context");
2320 lp_build_name(input_array
, "input");
2321 lp_build_name(io_ptr
, "io");
2322 lp_build_name(num_prims
, "num_prims");
2323 lp_build_name(system_values
.instance_id
, "instance_id");
2324 lp_build_name(prim_id_ptr
, "prim_id_ptr");
2325 lp_build_name(system_values
.invocation_id
, "invocation_id");
2327 variant
->context_ptr
= context_ptr
;
2328 variant
->io_ptr
= io_ptr
;
2329 variant
->num_prims
= num_prims
;
2331 gs_iface
.base
.fetch_input
= draw_gs_llvm_fetch_input
;
2332 gs_iface
.base
.emit_vertex
= draw_gs_llvm_emit_vertex
;
2333 gs_iface
.base
.end_primitive
= draw_gs_llvm_end_primitive
;
2334 gs_iface
.base
.gs_epilogue
= draw_gs_llvm_epilogue
;
2335 gs_iface
.input
= input_array
;
2336 gs_iface
.variant
= variant
;
2342 block
= LLVMAppendBasicBlockInContext(gallivm
->context
, variant_func
, "entry");
2343 builder
= gallivm
->builder
;
2344 LLVMPositionBuilderAtEnd(builder
, block
);
2346 lp_build_context_init(&bld
, gallivm
, lp_type_int(32));
2348 memset(&gs_type
, 0, sizeof gs_type
);
2349 gs_type
.floating
= TRUE
; /* floating point values */
2350 gs_type
.sign
= TRUE
; /* values are signed */
2351 gs_type
.norm
= FALSE
; /* values are not limited to [0,1] or [-1,1] */
2352 gs_type
.width
= 32; /* 32-bit float */
2353 gs_type
.length
= vector_length
;
2355 consts_ptr
= draw_gs_jit_context_constants(variant
->gallivm
, context_ptr
);
2357 draw_gs_jit_context_num_constants(variant
->gallivm
, context_ptr
);
2359 ssbos_ptr
= draw_gs_jit_context_ssbos(variant
->gallivm
, context_ptr
);
2361 draw_gs_jit_context_num_ssbos(variant
->gallivm
, context_ptr
);
2363 /* code generated texture sampling */
2364 sampler
= draw_llvm_sampler_soa_create(variant
->key
.samplers
);
2366 mask_val
= generate_mask_value(variant
, gs_type
);
2367 lp_build_mask_begin(&mask
, gallivm
, gs_type
, mask_val
);
2369 if (gs_info
->uses_primid
) {
2370 system_values
.prim_id
= LLVMBuildLoad(builder
, prim_id_ptr
, "prim_id");
2373 if (gallivm_debug
& (GALLIVM_DEBUG_TGSI
| GALLIVM_DEBUG_IR
)) {
2374 tgsi_dump(tokens
, 0);
2375 draw_gs_llvm_dump_variant_key(&variant
->key
);
2378 lp_build_tgsi_soa(variant
->gallivm
,
2390 &llvm
->draw
->gs
.geometry_shader
->info
,
2391 (const struct lp_build_tgsi_gs_iface
*)&gs_iface
, ssbos_ptr
, num_ssbos_ptr
);
2393 sampler
->destroy(sampler
);
2395 lp_build_mask_end(&mask
);
2397 LLVMBuildRet(builder
, lp_build_zero(gallivm
, lp_type_uint(32)));
2399 gallivm_verify_function(gallivm
, variant_func
);
2403 struct draw_gs_llvm_variant
*
2404 draw_gs_llvm_create_variant(struct draw_llvm
*llvm
,
2405 unsigned num_outputs
,
2406 const struct draw_gs_llvm_variant_key
*key
)
2408 struct draw_gs_llvm_variant
*variant
;
2409 struct llvm_geometry_shader
*shader
=
2410 llvm_geometry_shader(llvm
->draw
->gs
.geometry_shader
);
2411 LLVMTypeRef vertex_header
;
2412 char module_name
[64];
2414 variant
= MALLOC(sizeof *variant
+
2415 shader
->variant_key_size
-
2416 sizeof variant
->key
);
2420 variant
->llvm
= llvm
;
2421 variant
->shader
= shader
;
2423 snprintf(module_name
, sizeof(module_name
), "draw_llvm_gs_variant%u",
2424 variant
->shader
->variants_cached
);
2426 variant
->gallivm
= gallivm_create(module_name
, llvm
->context
);
2428 create_gs_jit_types(variant
);
2430 memcpy(&variant
->key
, key
, shader
->variant_key_size
);
2432 vertex_header
= create_jit_vertex_header(variant
->gallivm
, num_outputs
);
2434 variant
->vertex_header_ptr_type
= LLVMPointerType(vertex_header
, 0);
2436 draw_gs_llvm_generate(llvm
, variant
);
2438 gallivm_compile_module(variant
->gallivm
);
2440 variant
->jit_func
= (draw_gs_jit_func
)
2441 gallivm_jit_function(variant
->gallivm
, variant
->function
);
2443 gallivm_free_ir(variant
->gallivm
);
2445 variant
->list_item_global
.base
= variant
;
2446 variant
->list_item_local
.base
= variant
;
2447 /*variant->no = */shader
->variants_created
++;
2448 variant
->list_item_global
.base
= variant
;
2454 draw_gs_llvm_destroy_variant(struct draw_gs_llvm_variant
*variant
)
2456 struct draw_llvm
*llvm
= variant
->llvm
;
2458 if (gallivm_debug
& (GALLIVM_DEBUG_TGSI
| GALLIVM_DEBUG_IR
)) {
2459 debug_printf("Deleting GS variant: %u gs variants,\t%u total variants\n",
2460 variant
->shader
->variants_cached
, llvm
->nr_gs_variants
);
2463 gallivm_destroy(variant
->gallivm
);
2465 remove_from_list(&variant
->list_item_local
);
2466 variant
->shader
->variants_cached
--;
2467 remove_from_list(&variant
->list_item_global
);
2468 llvm
->nr_gs_variants
--;
2472 struct draw_gs_llvm_variant_key
*
2473 draw_gs_llvm_make_variant_key(struct draw_llvm
*llvm
, char *store
)
2476 struct draw_gs_llvm_variant_key
*key
;
2477 struct draw_sampler_static_state
*draw_sampler
;
2479 key
= (struct draw_gs_llvm_variant_key
*)store
;
2481 memset(key
, 0, offsetof(struct draw_gs_llvm_variant_key
, samplers
[0]));
2483 key
->num_outputs
= draw_total_gs_outputs(llvm
->draw
);
2485 /* All variants of this shader will have the same value for
2486 * nr_samplers. Not yet trying to compact away holes in the
2489 key
->nr_samplers
= llvm
->draw
->gs
.geometry_shader
->info
.file_max
[TGSI_FILE_SAMPLER
] + 1;
2490 if (llvm
->draw
->gs
.geometry_shader
->info
.file_max
[TGSI_FILE_SAMPLER_VIEW
] != -1) {
2491 key
->nr_sampler_views
=
2492 llvm
->draw
->gs
.geometry_shader
->info
.file_max
[TGSI_FILE_SAMPLER_VIEW
] + 1;
2495 key
->nr_sampler_views
= key
->nr_samplers
;
2498 draw_sampler
= key
->samplers
;
2500 memset(draw_sampler
, 0, MAX2(key
->nr_samplers
, key
->nr_sampler_views
) * sizeof *draw_sampler
);
2502 for (i
= 0 ; i
< key
->nr_samplers
; i
++) {
2503 lp_sampler_static_sampler_state(&draw_sampler
[i
].sampler_state
,
2504 llvm
->draw
->samplers
[PIPE_SHADER_GEOMETRY
][i
]);
2506 for (i
= 0 ; i
< key
->nr_sampler_views
; i
++) {
2507 lp_sampler_static_texture_state(&draw_sampler
[i
].texture_state
,
2508 llvm
->draw
->sampler_views
[PIPE_SHADER_GEOMETRY
][i
]);
2515 draw_gs_llvm_dump_variant_key(struct draw_gs_llvm_variant_key
*key
)
2518 struct draw_sampler_static_state
*sampler
= key
->samplers
;
2520 for (i
= 0 ; i
< key
->nr_sampler_views
; i
++) {
2521 debug_printf("sampler[%i].src_format = %s\n", i
,
2522 util_format_name(sampler
[i
].texture_state
.format
));