1 /**************************************************************************
3 * Copyright 2009 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 TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 #include "draw_private.h"
31 #include "draw_context.h"
33 #include "draw_llvm.h"
36 #include "tgsi/tgsi_parse.h"
37 #include "tgsi/tgsi_exec.h"
39 #include "pipe/p_shader_tokens.h"
41 #include "util/u_math.h"
42 #include "util/u_memory.h"
43 #include "util/u_prim.h"
45 /* fixme: move it from here */
46 #define MAX_PRIMITIVES 64
49 draw_gs_get_input_index(int semantic, int index,
50 const struct tgsi_shader_info *input_info)
53 const ubyte *input_semantic_names = input_info->output_semantic_name;
54 const ubyte *input_semantic_indices = input_info->output_semantic_index;
55 for (i = 0; i < PIPE_MAX_SHADER_OUTPUTS; i++) {
56 if (input_semantic_names[i] == semantic &&
57 input_semantic_indices[i] == index)
65 * We execute geometry shaders in the SOA mode, so ideally we want to
66 * flush when the number of currently fetched primitives is equal to
67 * the number of elements in the SOA vector. This ensures that the
68 * throughput is optimized for the given vector instrunction set.
71 draw_gs_should_flush(struct draw_geometry_shader *shader)
73 return (shader->fetched_prim_count == shader->vector_length);
76 /*#define DEBUG_OUTPUTS 1*/
78 tgsi_fetch_gs_outputs(struct draw_geometry_shader *shader,
79 unsigned num_primitives,
80 float (**p_output)[4])
82 struct tgsi_exec_machine *machine = shader->machine;
83 unsigned prim_idx, j, slot;
84 unsigned current_idx = 0;
89 /* Unswizzle all output results.
92 for (prim_idx = 0; prim_idx < num_primitives; ++prim_idx) {
93 unsigned num_verts_per_prim = machine->Primitives[prim_idx];
94 shader->primitive_lengths[prim_idx + shader->emitted_primitives] =
95 machine->Primitives[prim_idx];
96 shader->emitted_vertices += num_verts_per_prim;
97 for (j = 0; j < num_verts_per_prim; j++, current_idx++) {
98 int idx = current_idx * shader->info.num_outputs;
100 debug_printf("%d) Output vert:\n", idx / shader->info.num_outputs);
102 for (slot = 0; slot < shader->info.num_outputs; slot++) {
103 output[slot][0] = machine->Outputs[idx + slot].xyzw[0].f[0];
104 output[slot][1] = machine->Outputs[idx + slot].xyzw[1].f[0];
105 output[slot][2] = machine->Outputs[idx + slot].xyzw[2].f[0];
106 output[slot][3] = machine->Outputs[idx + slot].xyzw[3].f[0];
108 debug_printf("\t%d: %f %f %f %f\n", slot,
114 debug_assert(!util_is_inf_or_nan(output[slot][0]));
116 output = (float (*)[4])((char *)output + shader->vertex_size);
120 shader->emitted_primitives += num_primitives;
123 /*#define DEBUG_INPUTS 1*/
124 static void tgsi_fetch_gs_input(struct draw_geometry_shader *shader,
126 unsigned num_vertices,
129 struct tgsi_exec_machine *machine = shader->machine;
130 unsigned slot, vs_slot, i;
131 unsigned input_vertex_stride = shader->input_vertex_stride;
132 const float (*input_ptr)[4];
134 input_ptr = shader->input;
136 for (i = 0; i < num_vertices; ++i) {
137 const float (*input)[4];
139 debug_printf("%d) vertex index = %d (prim idx = %d)\n",
140 i, indices[i], prim_idx);
142 input = (const float (*)[4])(
143 (const char *)input_ptr + (indices[i] * input_vertex_stride));
144 for (slot = 0, vs_slot = 0; slot < shader->info.num_inputs; ++slot) {
145 unsigned idx = i * TGSI_EXEC_MAX_INPUT_ATTRIBS + slot;
146 if (shader->info.input_semantic_name[slot] == TGSI_SEMANTIC_PRIMID) {
147 machine->Inputs[idx].xyzw[0].f[prim_idx] =
148 (float)shader->in_prim_idx;
149 machine->Inputs[idx].xyzw[1].f[prim_idx] =
150 (float)shader->in_prim_idx;
151 machine->Inputs[idx].xyzw[2].f[prim_idx] =
152 (float)shader->in_prim_idx;
153 machine->Inputs[idx].xyzw[3].f[prim_idx] =
154 (float)shader->in_prim_idx;
156 vs_slot = draw_gs_get_input_index(
157 shader->info.input_semantic_name[slot],
158 shader->info.input_semantic_index[slot],
161 debug_printf("\tSlot = %d, vs_slot = %d, idx = %d:\n",
165 assert(!util_is_inf_or_nan(input[vs_slot][0]));
166 assert(!util_is_inf_or_nan(input[vs_slot][1]));
167 assert(!util_is_inf_or_nan(input[vs_slot][2]));
168 assert(!util_is_inf_or_nan(input[vs_slot][3]));
170 machine->Inputs[idx].xyzw[0].f[prim_idx] = input[vs_slot][0];
171 machine->Inputs[idx].xyzw[1].f[prim_idx] = input[vs_slot][1];
172 machine->Inputs[idx].xyzw[2].f[prim_idx] = input[vs_slot][2];
173 machine->Inputs[idx].xyzw[3].f[prim_idx] = input[vs_slot][3];
175 debug_printf("\t\t%f %f %f %f\n",
176 machine->Inputs[idx].xyzw[0].f[prim_idx],
177 machine->Inputs[idx].xyzw[1].f[prim_idx],
178 machine->Inputs[idx].xyzw[2].f[prim_idx],
179 machine->Inputs[idx].xyzw[3].f[prim_idx]);
187 static void tgsi_gs_prepare(struct draw_geometry_shader *shader,
188 const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
189 const unsigned constants_size[PIPE_MAX_CONSTANT_BUFFERS])
191 struct tgsi_exec_machine *machine = shader->machine;
193 tgsi_exec_set_constant_buffers(machine, PIPE_MAX_CONSTANT_BUFFERS,
194 constants, constants_size);
197 static unsigned tgsi_gs_run(struct draw_geometry_shader *shader,
198 unsigned input_primitives)
200 struct tgsi_exec_machine *machine = shader->machine;
202 tgsi_set_exec_mask(machine,
204 input_primitives > 1,
205 input_primitives > 2,
206 input_primitives > 3);
208 /* run interpreter */
209 tgsi_exec_machine_run(machine);
212 machine->Temps[TGSI_EXEC_TEMP_PRIMITIVE_I].xyzw[TGSI_EXEC_TEMP_PRIMITIVE_C].u[0];
218 llvm_fetch_gs_input(struct draw_geometry_shader *shader,
220 unsigned num_vertices,
223 unsigned slot, vs_slot, i;
224 unsigned input_vertex_stride = shader->input_vertex_stride;
225 const float (*input_ptr)[4];
226 float (*input_data)[6][PIPE_MAX_SHADER_INPUTS][TGSI_NUM_CHANNELS][TGSI_NUM_CHANNELS] = &shader->gs_input->data;
228 input_ptr = shader->input;
230 for (i = 0; i < num_vertices; ++i) {
231 const float (*input)[4];
233 debug_printf("%d) vertex index = %d (prim idx = %d)\n",
234 i, indices[i], prim_idx);
236 input = (const float (*)[4])(
237 (const char *)input_ptr + (indices[i] * input_vertex_stride));
238 for (slot = 0, vs_slot = 0; slot < shader->info.num_inputs; ++slot) {
239 if (shader->info.input_semantic_name[slot] == TGSI_SEMANTIC_PRIMID) {
240 (*input_data)[i][slot][0][prim_idx] = (float)shader->in_prim_idx;
241 (*input_data)[i][slot][1][prim_idx] = (float)shader->in_prim_idx;
242 (*input_data)[i][slot][2][prim_idx] = (float)shader->in_prim_idx;
243 (*input_data)[i][slot][3][prim_idx] = (float)shader->in_prim_idx;
245 vs_slot = draw_gs_get_input_index(
246 shader->info.input_semantic_name[slot],
247 shader->info.input_semantic_index[slot],
250 debug_printf("\tSlot = %d, vs_slot = %d, idx = %d:\n",
254 assert(!util_is_inf_or_nan(input[vs_slot][0]));
255 assert(!util_is_inf_or_nan(input[vs_slot][1]));
256 assert(!util_is_inf_or_nan(input[vs_slot][2]));
257 assert(!util_is_inf_or_nan(input[vs_slot][3]));
259 (*input_data)[i][slot][0][prim_idx] = input[vs_slot][0];
260 (*input_data)[i][slot][1][prim_idx] = input[vs_slot][1];
261 (*input_data)[i][slot][2][prim_idx] = input[vs_slot][2];
262 (*input_data)[i][slot][3][prim_idx] = input[vs_slot][3];
264 debug_printf("\t\t%f %f %f %f\n",
265 (*input_data)[i][slot][0][prim_idx],
266 (*input_data)[i][slot][1][prim_idx],
267 (*input_data)[i][slot][2][prim_idx],
268 (*input_data)[i][slot][3][prim_idx]);
277 llvm_fetch_gs_outputs(struct draw_geometry_shader *shader,
278 unsigned num_primitives,
279 float (**p_output)[4])
282 int vertex_count = 0;
284 int max_prims_per_invocation = 0;
285 char *output_ptr = (char*)shader->gs_output;
288 for (i = 0; i < shader->vector_length; ++i) {
289 int prims = shader->llvm_emitted_primitives[i];
290 total_prims += prims;
291 max_prims_per_invocation = MAX2(max_prims_per_invocation, prims);
293 for (i = 0; i < shader->vector_length; ++i) {
294 total_verts += shader->llvm_emitted_vertices[i];
298 output_ptr += shader->emitted_vertices * shader->vertex_size;
299 for (i = 0; i < shader->vector_length - 1; ++i) {
300 int current_verts = shader->llvm_emitted_vertices[i];
302 if (current_verts != shader->max_output_vertices) {
303 memcpy(output_ptr + (vertex_count + current_verts) * shader->vertex_size,
304 output_ptr + (vertex_count + shader->max_output_vertices) * shader->vertex_size,
305 shader->vertex_size * (total_verts - vertex_count - current_verts));
307 vertex_count += current_verts;
311 for (i = 0; i < shader->vector_length; ++i) {
312 int num_prims = shader->llvm_emitted_primitives[i];
313 for (j = 0; j < num_prims; ++j) {
315 shader->llvm_prim_lengths[j][i];
316 shader->primitive_lengths[shader->emitted_primitives + prim_idx] =
322 shader->emitted_primitives += total_prims;
323 shader->emitted_vertices += total_verts;
327 llvm_gs_prepare(struct draw_geometry_shader *shader,
328 const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
329 const unsigned constants_size[PIPE_MAX_CONSTANT_BUFFERS])
334 llvm_gs_run(struct draw_geometry_shader *shader,
335 unsigned input_primitives)
338 char *input = (char*)shader->gs_output;
340 input += (shader->emitted_vertices * shader->vertex_size);
342 ret = shader->current_variant->jit_func(
343 shader->jit_context, shader->gs_input->data,
344 (struct vertex_header*)input,
346 shader->draw->instance_id);
353 static void gs_flush(struct draw_geometry_shader *shader)
355 unsigned out_prim_count;
357 unsigned input_primitives = shader->fetched_prim_count;
359 debug_assert(input_primitives > 0 &&
360 input_primitives <= 4);
362 out_prim_count = shader->run(shader, input_primitives);
363 shader->fetch_outputs(shader, out_prim_count,
364 &shader->tmp_output);
367 debug_printf("PRIM emitted prims = %d (verts=%d), cur prim count = %d\n",
368 shader->emitted_primitives, shader->emitted_vertices,
372 shader->fetched_prim_count = 0;
375 static void gs_point(struct draw_geometry_shader *shader,
382 shader->fetch_inputs(shader, indices, 1,
383 shader->fetched_prim_count);
384 ++shader->in_prim_idx;
385 ++shader->fetched_prim_count;
390 static void gs_line(struct draw_geometry_shader *shader,
398 shader->fetch_inputs(shader, indices, 2,
399 shader->fetched_prim_count);
400 ++shader->in_prim_idx;
401 ++shader->fetched_prim_count;
406 static void gs_line_adj(struct draw_geometry_shader *shader,
407 int i0, int i1, int i2, int i3)
416 shader->fetch_inputs(shader, indices, 4,
417 shader->fetched_prim_count);
418 ++shader->in_prim_idx;
419 ++shader->fetched_prim_count;
424 static void gs_tri(struct draw_geometry_shader *shader,
425 int i0, int i1, int i2)
433 shader->fetch_inputs(shader, indices, 3,
434 shader->fetched_prim_count);
435 ++shader->in_prim_idx;
436 ++shader->fetched_prim_count;
441 static void gs_tri_adj(struct draw_geometry_shader *shader,
442 int i0, int i1, int i2,
443 int i3, int i4, int i5)
454 shader->fetch_inputs(shader, indices, 6,
455 shader->fetched_prim_count);
456 ++shader->in_prim_idx;
457 ++shader->fetched_prim_count;
463 #define GET_ELT(idx) (idx)
464 #include "draw_gs_tmp.h"
467 #define FUNC gs_run_elts
468 #define LOCAL_VARS const ushort *elts = input_prims->elts;
469 #define GET_ELT(idx) (elts[idx])
470 #include "draw_gs_tmp.h"
474 * Execute geometry shader.
476 int draw_geometry_shader_run(struct draw_geometry_shader *shader,
477 const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
478 const unsigned constants_size[PIPE_MAX_CONSTANT_BUFFERS],
479 const struct draw_vertex_info *input_verts,
480 const struct draw_prim_info *input_prim,
481 const struct tgsi_shader_info *input_info,
482 struct draw_vertex_info *output_verts,
483 struct draw_prim_info *output_prims )
485 const float (*input)[4] = (const float (*)[4])input_verts->verts->data;
486 unsigned input_stride = input_verts->vertex_size;
487 unsigned num_outputs = shader->info.num_outputs;
488 unsigned vertex_size = sizeof(struct vertex_header) + num_outputs * 4 * sizeof(float);
489 unsigned num_input_verts = input_prim->linear ?
492 unsigned num_in_primitives =
494 MAX2(u_gs_prims_for_vertices(input_prim->prim, num_input_verts),
495 u_gs_prims_for_vertices(shader->input_primitive, num_input_verts)),
496 shader->vector_length);
497 unsigned max_out_prims = u_gs_prims_for_vertices(shader->output_primitive,
498 shader->max_output_vertices)
501 //Assume at least one primitive
502 max_out_prims = MAX2(max_out_prims, 1);
505 output_verts->vertex_size = vertex_size;
506 output_verts->stride = output_verts->vertex_size;
507 output_verts->verts =
508 (struct vertex_header *)MALLOC(output_verts->vertex_size *
510 shader->max_output_vertices);
514 debug_printf("%s count = %d (in prims # = %d)\n",
515 __FUNCTION__, num_input_verts, num_in_primitives);
516 debug_printf("\tlinear = %d, prim_info->count = %d\n",
517 input_prim->linear, input_prim->count);
518 debug_printf("\tprim pipe = %s, shader in = %s, shader out = %s, max out = %d\n",
519 u_prim_name(input_prim->prim),
520 u_prim_name(shader->input_primitive),
521 u_prim_name(shader->output_primitive),
522 shader->max_output_vertices);
525 shader->emitted_vertices = 0;
526 shader->emitted_primitives = 0;
527 shader->vertex_size = vertex_size;
528 shader->tmp_output = (float (*)[4])output_verts->verts->data;
529 shader->in_prim_idx = 0;
530 shader->fetched_prim_count = 0;
531 shader->input_vertex_stride = input_stride;
532 shader->input = input;
533 shader->input_info = input_info;
534 FREE(shader->primitive_lengths);
535 shader->primitive_lengths = MALLOC(max_out_prims * sizeof(unsigned));
539 if (draw_get_option_use_llvm()) {
540 shader->gs_output = output_verts->verts;
541 if (max_out_prims > shader->max_out_prims) {
543 if (shader->llvm_prim_lengths) {
544 for (i = 0; i < shader->max_out_prims; ++i) {
545 align_free(shader->llvm_prim_lengths[i]);
547 FREE(shader->llvm_prim_lengths);
550 shader->llvm_prim_lengths = MALLOC(max_out_prims * sizeof(unsigned*));
551 for (i = 0; i < max_out_prims; ++i) {
552 int vector_size = shader->vector_length * sizeof(unsigned);
553 shader->llvm_prim_lengths[i] =
554 align_malloc(vector_size, vector_size);
557 shader->max_out_prims = max_out_prims;
559 shader->jit_context->prim_lengths = shader->llvm_prim_lengths;
560 shader->jit_context->emitted_vertices = shader->llvm_emitted_vertices;
561 shader->jit_context->emitted_prims = shader->llvm_emitted_primitives;
565 shader->prepare(shader, constants, constants_size);
567 if (input_prim->linear)
568 gs_run(shader, input_prim, input_verts,
569 output_prims, output_verts);
571 gs_run_elts(shader, input_prim, input_verts,
572 output_prims, output_verts);
574 /* Flush the remaining primitives. Will happen if
575 * num_input_primitives % 4 != 0
577 if (shader->fetched_prim_count > 0) {
581 debug_assert(shader->fetched_prim_count == 0);
585 output_prims->linear = TRUE;
586 output_prims->elts = NULL;
587 output_prims->start = 0;
588 output_prims->count = shader->emitted_vertices;
589 output_prims->prim = shader->output_primitive;
590 output_prims->flags = 0x0;
591 output_prims->primitive_lengths = shader->primitive_lengths;
592 output_prims->primitive_count = shader->emitted_primitives;
593 output_verts->count = shader->emitted_vertices;
596 debug_printf("GS finished, prims = %d, verts = %d\n",
597 output_prims->primitive_count,
598 output_verts->count);
601 return shader->emitted_vertices;
604 void draw_geometry_shader_prepare(struct draw_geometry_shader *shader,
605 struct draw_context *draw)
607 if (shader && shader->machine->Tokens != shader->state.tokens) {
608 tgsi_exec_machine_bind_shader(shader->machine,
609 shader->state.tokens,
610 draw->gs.tgsi.sampler);
616 draw_gs_init( struct draw_context *draw )
618 draw->gs.tgsi.machine = tgsi_exec_machine_create();
619 if (!draw->gs.tgsi.machine)
622 draw->gs.tgsi.machine->Primitives = align_malloc(
623 MAX_PRIMITIVES * sizeof(struct tgsi_exec_vector), 16);
624 if (!draw->gs.tgsi.machine->Primitives)
626 memset(draw->gs.tgsi.machine->Primitives, 0,
627 MAX_PRIMITIVES * sizeof(struct tgsi_exec_vector));
632 void draw_gs_destroy( struct draw_context *draw )
634 if (draw->gs.tgsi.machine) {
635 align_free(draw->gs.tgsi.machine->Primitives);
636 tgsi_exec_machine_destroy(draw->gs.tgsi.machine);
640 struct draw_geometry_shader *
641 draw_create_geometry_shader(struct draw_context *draw,
642 const struct pipe_shader_state *state)
645 struct llvm_geometry_shader *llvm_gs;
647 struct draw_geometry_shader *gs;
651 if (draw_get_option_use_llvm()) {
652 llvm_gs = CALLOC_STRUCT(llvm_geometry_shader);
659 make_empty_list(&llvm_gs->variants);
663 gs = CALLOC_STRUCT(draw_geometry_shader);
671 gs->state.tokens = tgsi_dup_tokens(state->tokens);
672 if (!gs->state.tokens) {
677 tgsi_scan_shader(state->tokens, &gs->info);
679 /* setup the defaults */
680 gs->input_primitive = PIPE_PRIM_TRIANGLES;
681 gs->output_primitive = PIPE_PRIM_TRIANGLE_STRIP;
682 gs->max_output_vertices = 32;
683 gs->max_out_prims = 0;
685 if (draw_get_option_use_llvm()) {
686 /* TODO: change the input array to handle the following
687 vector length, instead of the currently hardcoded
689 gs->vector_length = lp_native_vector_width / 32;*/
690 gs->vector_length = TGSI_NUM_CHANNELS;
692 gs->vector_length = TGSI_NUM_CHANNELS;
695 for (i = 0; i < gs->info.num_properties; ++i) {
696 if (gs->info.properties[i].name ==
697 TGSI_PROPERTY_GS_INPUT_PRIM)
698 gs->input_primitive = gs->info.properties[i].data[0];
699 else if (gs->info.properties[i].name ==
700 TGSI_PROPERTY_GS_OUTPUT_PRIM)
701 gs->output_primitive = gs->info.properties[i].data[0];
702 else if (gs->info.properties[i].name ==
703 TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES)
704 gs->max_output_vertices = gs->info.properties[i].data[0];
707 for (i = 0; i < gs->info.num_outputs; i++) {
708 if (gs->info.output_semantic_name[i] == TGSI_SEMANTIC_POSITION &&
709 gs->info.output_semantic_index[i] == 0)
710 gs->position_output = i;
713 gs->machine = draw->gs.tgsi.machine;
716 if (draw_get_option_use_llvm()) {
717 int vector_size = gs->vector_length * sizeof(float);
718 gs->gs_input = align_malloc(sizeof(struct draw_gs_inputs), 16);
719 memset(gs->gs_input, 0, sizeof(struct draw_gs_inputs));
720 gs->llvm_prim_lengths = 0;
722 gs->llvm_emitted_primitives = align_malloc(vector_size, vector_size);
723 gs->llvm_emitted_vertices = align_malloc(vector_size, vector_size);
725 gs->fetch_outputs = llvm_fetch_gs_outputs;
726 gs->fetch_inputs = llvm_fetch_gs_input;
727 gs->prepare = llvm_gs_prepare;
728 gs->run = llvm_gs_run;
730 gs->jit_context = &draw->llvm->gs_jit_context;
733 llvm_gs->variant_key_size =
734 draw_gs_llvm_variant_key_size(
735 MAX2(gs->info.file_max[TGSI_FILE_SAMPLER]+1,
736 gs->info.file_max[TGSI_FILE_SAMPLER_VIEW]+1));
740 gs->fetch_outputs = tgsi_fetch_gs_outputs;
741 gs->fetch_inputs = tgsi_fetch_gs_input;
742 gs->prepare = tgsi_gs_prepare;
743 gs->run = tgsi_gs_run;
749 void draw_bind_geometry_shader(struct draw_context *draw,
750 struct draw_geometry_shader *dgs)
752 draw_do_flush(draw, DRAW_FLUSH_STATE_CHANGE);
755 draw->gs.geometry_shader = dgs;
756 draw->gs.num_gs_outputs = dgs->info.num_outputs;
757 draw->gs.position_output = dgs->position_output;
758 draw_geometry_shader_prepare(dgs, draw);
761 draw->gs.geometry_shader = NULL;
762 draw->gs.num_gs_outputs = 0;
766 void draw_delete_geometry_shader(struct draw_context *draw,
767 struct draw_geometry_shader *dgs)
770 if (draw_get_option_use_llvm()) {
771 struct llvm_geometry_shader *shader = llvm_geometry_shader(dgs);
772 struct draw_gs_llvm_variant_list_item *li;
774 li = first_elem(&shader->variants);
775 while(!at_end(&shader->variants, li)) {
776 struct draw_gs_llvm_variant_list_item *next = next_elem(li);
777 draw_gs_llvm_destroy_variant(li->base);
781 assert(shader->variants_cached == 0);
783 if (dgs->llvm_prim_lengths) {
785 for (i = 0; i < dgs->max_out_prims; ++i) {
786 align_free(dgs->llvm_prim_lengths[i]);
788 FREE(dgs->llvm_prim_lengths);
790 align_free(dgs->llvm_emitted_primitives);
791 align_free(dgs->llvm_emitted_vertices);
793 align_free(dgs->gs_input);
797 FREE(dgs->primitive_lengths);
798 FREE((void*) dgs->state.tokens);
803 void draw_gs_set_current_variant(struct draw_geometry_shader *shader,
804 struct draw_gs_llvm_variant *variant)
806 shader->current_variant = variant;