1 /**************************************************************************
2 *
3 * Copyright 2010 VMware, Inc.
4 * All rights reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 /**
29 * Texture sampling code generation
30 * @author Jose Fonseca <jfonseca@vmware.com>
31 */
32
33 #include "pipe/p_defines.h"
34 #include "pipe/p_shader_tokens.h"
35 #include "gallivm/lp_bld_const.h"
36 #include "gallivm/lp_bld_debug.h"
37 #include "gallivm/lp_bld_type.h"
38 #include "gallivm/lp_bld_sample.h"
39 #include "gallivm/lp_bld_tgsi.h"
40
41
42 #include "util/u_debug.h"
43 #include "util/u_memory.h"
44 #include "util/u_pointer.h"
45 #include "util/u_string.h"
46
47 #include "draw_llvm.h"
48
49
50 /**
51 * This provides the bridge between the sampler state store in
52 * lp_jit_context and lp_jit_texture and the sampler code
53 * generator. It provides the texture layout information required by
54 * the texture sampler code generator in terms of the state stored in
55 * lp_jit_context and lp_jit_texture in runtime.
56 */
57 struct draw_llvm_sampler_dynamic_state
58 {
59 struct lp_sampler_dynamic_state base;
60
61 const struct draw_sampler_static_state *static_state;
62 };
63
64
65 /**
66 * This is the bridge between our sampler and the TGSI translator.
67 */
68 struct draw_llvm_sampler_soa
69 {
70 struct lp_build_sampler_soa base;
71
72 struct draw_llvm_sampler_dynamic_state dynamic_state;
73
74 unsigned nr_samplers;
75 };
76
77 struct draw_llvm_image_dynamic_state
78 {
79 struct lp_sampler_dynamic_state base;
80
81 const struct draw_image_static_state *static_state;
82 };
83
84 struct draw_llvm_image_soa
85 {
86 struct lp_build_image_soa base;
87
88 struct draw_llvm_image_dynamic_state dynamic_state;
89
90 unsigned nr_images;
91 };
92
93 /**
94 * Fetch the specified member of the lp_jit_texture structure.
95 * \param emit_load if TRUE, emit the LLVM load instruction to actually
96 * fetch the field's value. Otherwise, just emit the
97 * GEP code to address the field.
98 *
99 * @sa http://llvm.org/docs/GetElementPtr.html
100 */
101 static LLVMValueRef
draw_llvm_texture_member(const struct lp_sampler_dynamic_state * base,struct gallivm_state * gallivm,LLVMValueRef context_ptr,unsigned texture_unit,LLVMValueRef texture_unit_offset,unsigned member_index,const char * member_name,boolean emit_load)102 draw_llvm_texture_member(const struct lp_sampler_dynamic_state *base,
103 struct gallivm_state *gallivm,
104 LLVMValueRef context_ptr,
105 unsigned texture_unit,
106 LLVMValueRef texture_unit_offset,
107 unsigned member_index,
108 const char *member_name,
109 boolean emit_load)
110 {
111 LLVMBuilderRef builder = gallivm->builder;
112 LLVMValueRef indices[4];
113 LLVMValueRef ptr;
114 LLVMValueRef res;
115
116 debug_assert(texture_unit < PIPE_MAX_SHADER_SAMPLER_VIEWS);
117
118 /* context[0] */
119 indices[0] = lp_build_const_int32(gallivm, 0);
120 /* context[0].textures */
121 indices[1] = lp_build_const_int32(gallivm, DRAW_JIT_CTX_TEXTURES);
122 /* context[0].textures[unit] */
123 indices[2] = lp_build_const_int32(gallivm, texture_unit);
124 if (texture_unit_offset) {
125 indices[2] = LLVMBuildAdd(gallivm->builder, indices[2], texture_unit_offset, "");
126 LLVMValueRef cond = LLVMBuildICmp(gallivm->builder, LLVMIntULT, indices[2], lp_build_const_int32(gallivm, PIPE_MAX_SHADER_SAMPLER_VIEWS), "");
127 indices[2] = LLVMBuildSelect(gallivm->builder, cond, indices[2], lp_build_const_int32(gallivm, texture_unit), "");
128 }
129 /* context[0].textures[unit].member */
130 indices[3] = lp_build_const_int32(gallivm, member_index);
131
132 ptr = LLVMBuildGEP(builder, context_ptr, indices, ARRAY_SIZE(indices), "");
133
134 if (emit_load)
135 res = LLVMBuildLoad(builder, ptr, "");
136 else
137 res = ptr;
138
139 lp_build_name(res, "context.texture%u.%s", texture_unit, member_name);
140
141 return res;
142 }
143
144
145 /**
146 * Fetch the specified member of the lp_jit_sampler structure.
147 * \param emit_load if TRUE, emit the LLVM load instruction to actually
148 * fetch the field's value. Otherwise, just emit the
149 * GEP code to address the field.
150 *
151 * @sa http://llvm.org/docs/GetElementPtr.html
152 */
153 static LLVMValueRef
draw_llvm_sampler_member(const struct lp_sampler_dynamic_state * base,struct gallivm_state * gallivm,LLVMValueRef context_ptr,unsigned sampler_unit,unsigned member_index,const char * member_name,boolean emit_load)154 draw_llvm_sampler_member(const struct lp_sampler_dynamic_state *base,
155 struct gallivm_state *gallivm,
156 LLVMValueRef context_ptr,
157 unsigned sampler_unit,
158 unsigned member_index,
159 const char *member_name,
160 boolean emit_load)
161 {
162 LLVMBuilderRef builder = gallivm->builder;
163 LLVMValueRef indices[4];
164 LLVMValueRef ptr;
165 LLVMValueRef res;
166
167 debug_assert(sampler_unit < PIPE_MAX_SAMPLERS);
168
169 /* context[0] */
170 indices[0] = lp_build_const_int32(gallivm, 0);
171 /* context[0].samplers */
172 indices[1] = lp_build_const_int32(gallivm, DRAW_JIT_CTX_SAMPLERS);
173 /* context[0].samplers[unit] */
174 indices[2] = lp_build_const_int32(gallivm, sampler_unit);
175 /* context[0].samplers[unit].member */
176 indices[3] = lp_build_const_int32(gallivm, member_index);
177
178 ptr = LLVMBuildGEP(builder, context_ptr, indices, ARRAY_SIZE(indices), "");
179
180 if (emit_load)
181 res = LLVMBuildLoad(builder, ptr, "");
182 else
183 res = ptr;
184
185 lp_build_name(res, "context.sampler%u.%s", sampler_unit, member_name);
186
187 return res;
188 }
189
190 /**
191 * Fetch the specified member of the lp_jit_texture structure.
192 * \param emit_load if TRUE, emit the LLVM load instruction to actually
193 * fetch the field's value. Otherwise, just emit the
194 * GEP code to address the field.
195 *
196 * @sa http://llvm.org/docs/GetElementPtr.html
197 */
198 static LLVMValueRef
draw_llvm_image_member(const struct lp_sampler_dynamic_state * base,struct gallivm_state * gallivm,LLVMValueRef context_ptr,unsigned image_unit,LLVMValueRef image_unit_offset,unsigned member_index,const char * member_name,boolean emit_load)199 draw_llvm_image_member(const struct lp_sampler_dynamic_state *base,
200 struct gallivm_state *gallivm,
201 LLVMValueRef context_ptr,
202 unsigned image_unit,
203 LLVMValueRef image_unit_offset,
204 unsigned member_index,
205 const char *member_name,
206 boolean emit_load)
207 {
208 LLVMBuilderRef builder = gallivm->builder;
209 LLVMValueRef indices[4];
210 LLVMValueRef ptr;
211 LLVMValueRef res;
212
213 debug_assert(image_unit < PIPE_MAX_SHADER_IMAGES);
214
215 /* context[0] */
216 indices[0] = lp_build_const_int32(gallivm, 0);
217 /* context[0].textures */
218 indices[1] = lp_build_const_int32(gallivm, DRAW_JIT_CTX_IMAGES);
219 /* context[0].textures[unit] */
220 indices[2] = lp_build_const_int32(gallivm, image_unit);
221 if (image_unit_offset) {
222 indices[2] = LLVMBuildAdd(gallivm->builder, indices[2], image_unit_offset, "");
223 LLVMValueRef cond = LLVMBuildICmp(gallivm->builder, LLVMIntULT, indices[2], lp_build_const_int32(gallivm, PIPE_MAX_SHADER_IMAGES), "");
224 indices[2] = LLVMBuildSelect(gallivm->builder, cond, indices[2], lp_build_const_int32(gallivm, image_unit), "");
225 }
226 /* context[0].textures[unit].member */
227 indices[3] = lp_build_const_int32(gallivm, member_index);
228
229 ptr = LLVMBuildGEP(builder, context_ptr, indices, ARRAY_SIZE(indices), "");
230
231 if (emit_load)
232 res = LLVMBuildLoad(builder, ptr, "");
233 else
234 res = ptr;
235
236 lp_build_name(res, "context.image%u.%s", image_unit, member_name);
237
238 return res;
239 }
240
241 /**
242 * Helper macro to instantiate the functions that generate the code to
243 * fetch the members of lp_jit_texture to fulfill the sampler code
244 * generator requests.
245 *
246 * This complexity is the price we have to pay to keep the texture
247 * sampler code generator a reusable module without dependencies to
248 * llvmpipe internals.
249 */
250 #define DRAW_LLVM_TEXTURE_MEMBER(_name, _index, _emit_load) \
251 static LLVMValueRef \
252 draw_llvm_texture_##_name( const struct lp_sampler_dynamic_state *base, \
253 struct gallivm_state *gallivm, \
254 LLVMValueRef context_ptr, \
255 unsigned texture_unit, \
256 LLVMValueRef texture_unit_offset) \
257 { \
258 return draw_llvm_texture_member(base, gallivm, context_ptr, \
259 texture_unit, texture_unit_offset, \
260 _index, #_name, _emit_load ); \
261 }
262
263
DRAW_LLVM_TEXTURE_MEMBER(width,DRAW_JIT_TEXTURE_WIDTH,TRUE)264 DRAW_LLVM_TEXTURE_MEMBER(width, DRAW_JIT_TEXTURE_WIDTH, TRUE)
265 DRAW_LLVM_TEXTURE_MEMBER(height, DRAW_JIT_TEXTURE_HEIGHT, TRUE)
266 DRAW_LLVM_TEXTURE_MEMBER(depth, DRAW_JIT_TEXTURE_DEPTH, TRUE)
267 DRAW_LLVM_TEXTURE_MEMBER(first_level,DRAW_JIT_TEXTURE_FIRST_LEVEL, TRUE)
268 DRAW_LLVM_TEXTURE_MEMBER(last_level, DRAW_JIT_TEXTURE_LAST_LEVEL, TRUE)
269 DRAW_LLVM_TEXTURE_MEMBER(base_ptr, DRAW_JIT_TEXTURE_BASE, TRUE)
270 DRAW_LLVM_TEXTURE_MEMBER(row_stride, DRAW_JIT_TEXTURE_ROW_STRIDE, FALSE)
271 DRAW_LLVM_TEXTURE_MEMBER(img_stride, DRAW_JIT_TEXTURE_IMG_STRIDE, FALSE)
272 DRAW_LLVM_TEXTURE_MEMBER(mip_offsets, DRAW_JIT_TEXTURE_MIP_OFFSETS, FALSE)
273 DRAW_LLVM_TEXTURE_MEMBER(num_samples, DRAW_JIT_TEXTURE_NUM_SAMPLES, TRUE)
274 DRAW_LLVM_TEXTURE_MEMBER(sample_stride, DRAW_JIT_TEXTURE_SAMPLE_STRIDE, TRUE)
275
276 #define DRAW_LLVM_SAMPLER_MEMBER(_name, _index, _emit_load) \
277 static LLVMValueRef \
278 draw_llvm_sampler_##_name( const struct lp_sampler_dynamic_state *base, \
279 struct gallivm_state *gallivm, \
280 LLVMValueRef context_ptr, \
281 unsigned sampler_unit) \
282 { \
283 return draw_llvm_sampler_member(base, gallivm, context_ptr, \
284 sampler_unit, _index, #_name, _emit_load ); \
285 }
286
287
288 DRAW_LLVM_SAMPLER_MEMBER(min_lod, DRAW_JIT_SAMPLER_MIN_LOD, TRUE)
289 DRAW_LLVM_SAMPLER_MEMBER(max_lod, DRAW_JIT_SAMPLER_MAX_LOD, TRUE)
290 DRAW_LLVM_SAMPLER_MEMBER(lod_bias, DRAW_JIT_SAMPLER_LOD_BIAS, TRUE)
291 DRAW_LLVM_SAMPLER_MEMBER(border_color, DRAW_JIT_SAMPLER_BORDER_COLOR, FALSE)
292 DRAW_LLVM_SAMPLER_MEMBER(max_aniso, DRAW_JIT_SAMPLER_MAX_ANISO, TRUE)
293
294 #define DRAW_LLVM_IMAGE_MEMBER(_name, _index, _emit_load) \
295 static LLVMValueRef \
296 draw_llvm_image_##_name( const struct lp_sampler_dynamic_state *base, \
297 struct gallivm_state *gallivm, \
298 LLVMValueRef context_ptr, \
299 unsigned image_unit, LLVMValueRef image_unit_offset) \
300 { \
301 return draw_llvm_image_member(base, gallivm, context_ptr, \
302 image_unit, image_unit_offset, \
303 _index, #_name, _emit_load ); \
304 }
305
306
307 DRAW_LLVM_IMAGE_MEMBER(width, DRAW_JIT_IMAGE_WIDTH, TRUE)
308 DRAW_LLVM_IMAGE_MEMBER(height, DRAW_JIT_IMAGE_HEIGHT, TRUE)
309 DRAW_LLVM_IMAGE_MEMBER(depth, DRAW_JIT_IMAGE_DEPTH, TRUE)
310 DRAW_LLVM_IMAGE_MEMBER(base_ptr, DRAW_JIT_IMAGE_BASE, TRUE)
311 DRAW_LLVM_IMAGE_MEMBER(row_stride, DRAW_JIT_IMAGE_ROW_STRIDE, TRUE)
312 DRAW_LLVM_IMAGE_MEMBER(img_stride, DRAW_JIT_IMAGE_IMG_STRIDE, TRUE)
313 DRAW_LLVM_IMAGE_MEMBER(num_samples, DRAW_JIT_IMAGE_NUM_SAMPLES, TRUE)
314 DRAW_LLVM_IMAGE_MEMBER(sample_stride, DRAW_JIT_IMAGE_SAMPLE_STRIDE, TRUE)
315
316 static void
317 draw_llvm_sampler_soa_destroy(struct lp_build_sampler_soa *sampler)
318 {
319 FREE(sampler);
320 }
321
322
323 /**
324 * Fetch filtered values from texture.
325 * The 'texel' parameter returns four vectors corresponding to R, G, B, A.
326 */
327 static void
draw_llvm_sampler_soa_emit_fetch_texel(const struct lp_build_sampler_soa * base,struct gallivm_state * gallivm,const struct lp_sampler_params * params)328 draw_llvm_sampler_soa_emit_fetch_texel(const struct lp_build_sampler_soa *base,
329 struct gallivm_state *gallivm,
330 const struct lp_sampler_params *params)
331 {
332 struct draw_llvm_sampler_soa *sampler = (struct draw_llvm_sampler_soa *)base;
333 unsigned texture_index = params->texture_index;
334 unsigned sampler_index = params->sampler_index;
335
336 assert(texture_index < PIPE_MAX_SHADER_SAMPLER_VIEWS);
337 assert(sampler_index < PIPE_MAX_SAMPLERS);
338
339 if (params->texture_index_offset) {
340 struct lp_build_sample_array_switch switch_info;
341 memset(&switch_info, 0, sizeof(switch_info));
342 LLVMValueRef unit = LLVMBuildAdd(gallivm->builder, params->texture_index_offset,
343 lp_build_const_int32(gallivm, texture_index), "");
344 lp_build_sample_array_init_soa(&switch_info, gallivm, params, unit,
345 0, sampler->nr_samplers);
346
347 for (unsigned i = 0; i < sampler->nr_samplers; i++) {
348 lp_build_sample_array_case_soa(&switch_info, i,
349 &sampler->dynamic_state.static_state[i].texture_state,
350 &sampler->dynamic_state.static_state[i].sampler_state,
351 &sampler->dynamic_state.base);
352 }
353 lp_build_sample_array_fini_soa(&switch_info);
354 } else {
355 lp_build_sample_soa(&sampler->dynamic_state.static_state[texture_index].texture_state,
356 &sampler->dynamic_state.static_state[sampler_index].sampler_state,
357 &sampler->dynamic_state.base,
358 gallivm, params);
359 }
360 }
361
362
363 /**
364 * Fetch the texture size.
365 */
366 static void
draw_llvm_sampler_soa_emit_size_query(const struct lp_build_sampler_soa * base,struct gallivm_state * gallivm,const struct lp_sampler_size_query_params * params)367 draw_llvm_sampler_soa_emit_size_query(const struct lp_build_sampler_soa *base,
368 struct gallivm_state *gallivm,
369 const struct lp_sampler_size_query_params *params)
370 {
371 struct draw_llvm_sampler_soa *sampler = (struct draw_llvm_sampler_soa *)base;
372
373 assert(params->texture_unit < PIPE_MAX_SHADER_SAMPLER_VIEWS);
374
375 lp_build_size_query_soa(gallivm,
376 &sampler->dynamic_state.static_state[params->texture_unit].texture_state,
377 &sampler->dynamic_state.base,
378 params);
379 }
380
381 struct lp_build_sampler_soa *
draw_llvm_sampler_soa_create(const struct draw_sampler_static_state * static_state,unsigned nr_samplers)382 draw_llvm_sampler_soa_create(const struct draw_sampler_static_state *static_state,
383 unsigned nr_samplers)
384 {
385 struct draw_llvm_sampler_soa *sampler;
386
387 sampler = CALLOC_STRUCT(draw_llvm_sampler_soa);
388 if (!sampler)
389 return NULL;
390
391 sampler->base.destroy = draw_llvm_sampler_soa_destroy;
392 sampler->base.emit_tex_sample = draw_llvm_sampler_soa_emit_fetch_texel;
393 sampler->base.emit_size_query = draw_llvm_sampler_soa_emit_size_query;
394 sampler->dynamic_state.base.width = draw_llvm_texture_width;
395 sampler->dynamic_state.base.height = draw_llvm_texture_height;
396 sampler->dynamic_state.base.depth = draw_llvm_texture_depth;
397 sampler->dynamic_state.base.first_level = draw_llvm_texture_first_level;
398 sampler->dynamic_state.base.last_level = draw_llvm_texture_last_level;
399 sampler->dynamic_state.base.row_stride = draw_llvm_texture_row_stride;
400 sampler->dynamic_state.base.img_stride = draw_llvm_texture_img_stride;
401 sampler->dynamic_state.base.base_ptr = draw_llvm_texture_base_ptr;
402 sampler->dynamic_state.base.mip_offsets = draw_llvm_texture_mip_offsets;
403 sampler->dynamic_state.base.num_samples = draw_llvm_texture_num_samples;
404 sampler->dynamic_state.base.sample_stride = draw_llvm_texture_sample_stride;
405 sampler->dynamic_state.base.min_lod = draw_llvm_sampler_min_lod;
406 sampler->dynamic_state.base.max_lod = draw_llvm_sampler_max_lod;
407 sampler->dynamic_state.base.lod_bias = draw_llvm_sampler_lod_bias;
408 sampler->dynamic_state.base.border_color = draw_llvm_sampler_border_color;
409 sampler->dynamic_state.base.max_aniso = draw_llvm_sampler_max_aniso;
410 sampler->dynamic_state.static_state = static_state;
411
412 sampler->nr_samplers = nr_samplers;
413 return &sampler->base;
414 }
415
416 static void
draw_llvm_image_soa_emit_op(const struct lp_build_image_soa * base,struct gallivm_state * gallivm,const struct lp_img_params * params)417 draw_llvm_image_soa_emit_op(const struct lp_build_image_soa *base,
418 struct gallivm_state *gallivm,
419 const struct lp_img_params *params)
420 {
421 struct draw_llvm_image_soa *image = (struct draw_llvm_image_soa *)base;
422 unsigned image_index = params->image_index;
423 assert(image_index < PIPE_MAX_SHADER_IMAGES);
424
425 if (params->image_index_offset) {
426 struct lp_build_img_op_array_switch switch_info;
427 memset(&switch_info, 0, sizeof(switch_info));
428 LLVMValueRef unit = LLVMBuildAdd(gallivm->builder, params->image_index_offset,
429 lp_build_const_int32(gallivm, image_index), "");
430 lp_build_image_op_switch_soa(&switch_info, gallivm, params,
431 unit, 0, image->nr_images);
432
433 for (unsigned i = 0; i < image->nr_images; i++) {
434 lp_build_image_op_array_case(&switch_info, i,
435 &image->dynamic_state.static_state[i].image_state,
436 &image->dynamic_state.base);
437 }
438 lp_build_image_op_array_fini_soa(&switch_info);
439 return;
440 }
441 lp_build_img_op_soa(&image->dynamic_state.static_state[image_index].image_state,
442 &image->dynamic_state.base,
443 gallivm, params, params->outdata);
444 }
445 /**
446 * Fetch the texture size.
447 */
448 static void
draw_llvm_image_soa_emit_size_query(const struct lp_build_image_soa * base,struct gallivm_state * gallivm,const struct lp_sampler_size_query_params * params)449 draw_llvm_image_soa_emit_size_query(const struct lp_build_image_soa *base,
450 struct gallivm_state *gallivm,
451 const struct lp_sampler_size_query_params *params)
452 {
453 struct draw_llvm_image_soa *image = (struct draw_llvm_image_soa *)base;
454
455 assert(params->texture_unit < PIPE_MAX_SHADER_IMAGES);
456
457 lp_build_size_query_soa(gallivm,
458 &image->dynamic_state.static_state[params->texture_unit].image_state,
459 &image->dynamic_state.base,
460 params);
461 }
462 static void
draw_llvm_image_soa_destroy(struct lp_build_image_soa * image)463 draw_llvm_image_soa_destroy(struct lp_build_image_soa *image)
464 {
465 FREE(image);
466 }
467
468 struct lp_build_image_soa *
draw_llvm_image_soa_create(const struct draw_image_static_state * static_state,unsigned nr_images)469 draw_llvm_image_soa_create(const struct draw_image_static_state *static_state,
470 unsigned nr_images)
471 {
472 struct draw_llvm_image_soa *image;
473
474 image = CALLOC_STRUCT(draw_llvm_image_soa);
475 if (!image)
476 return NULL;
477
478 image->base.destroy = draw_llvm_image_soa_destroy;
479 image->base.emit_op = draw_llvm_image_soa_emit_op;
480 image->base.emit_size_query = draw_llvm_image_soa_emit_size_query;
481
482 image->dynamic_state.base.width = draw_llvm_image_width;
483 image->dynamic_state.base.height = draw_llvm_image_height;
484
485 image->dynamic_state.base.depth = draw_llvm_image_depth;
486 image->dynamic_state.base.base_ptr = draw_llvm_image_base_ptr;
487 image->dynamic_state.base.row_stride = draw_llvm_image_row_stride;
488 image->dynamic_state.base.img_stride = draw_llvm_image_img_stride;
489 image->dynamic_state.base.num_samples = draw_llvm_image_num_samples;
490 image->dynamic_state.base.sample_stride = draw_llvm_image_sample_stride;
491
492 image->dynamic_state.static_state = static_state;
493
494 image->nr_images = nr_images;
495 return &image->base;
496 }
497