1 /**************************************************************************
2 *
3 * Copyright 2008 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 #include "compiler/nir/nir.h"
30 #include "util/u_helpers.h"
31 #include "util/u_memory.h"
32 #include "util/format/u_format.h"
33 #include "util/format/u_format_s3tc.h"
34 #include "util/u_screen.h"
35 #include "util/u_video.h"
36 #include "util/os_misc.h"
37 #include "util/os_time.h"
38 #include "pipe/p_defines.h"
39 #include "pipe/p_screen.h"
40 #include "draw/draw_context.h"
41
42 #include "frontend/sw_winsys.h"
43 #include "tgsi/tgsi_exec.h"
44
45 #include "sp_texture.h"
46 #include "sp_screen.h"
47 #include "sp_context.h"
48 #include "sp_fence.h"
49 #include "sp_public.h"
50
51 static const struct debug_named_value sp_debug_options[] = {
52 {"vs", SP_DBG_VS, "dump vertex shader assembly to stderr"},
53 {"gs", SP_DBG_GS, "dump geometry shader assembly to stderr"},
54 {"fs", SP_DBG_FS, "dump fragment shader assembly to stderr"},
55 {"cs", SP_DBG_CS, "dump compute shader assembly to stderr"},
56 {"no_rast", SP_DBG_NO_RAST, "no-ops rasterization, for profiling purposes"},
57 {"use_llvm", SP_DBG_USE_LLVM, "Use LLVM if available for shaders"},
58 DEBUG_NAMED_VALUE_END
59 };
60
61 int sp_debug;
62 DEBUG_GET_ONCE_FLAGS_OPTION(sp_debug, "SOFTPIPE_DEBUG", sp_debug_options, 0)
63
64 static const char *
softpipe_get_vendor(struct pipe_screen * screen)65 softpipe_get_vendor(struct pipe_screen *screen)
66 {
67 return "Mesa";
68 }
69
70
71 static const char *
softpipe_get_name(struct pipe_screen * screen)72 softpipe_get_name(struct pipe_screen *screen)
73 {
74 return "softpipe";
75 }
76
77 static const nir_shader_compiler_options sp_compiler_options = {
78 .fdot_replicates = true,
79 .fuse_ffma32 = true,
80 .fuse_ffma64 = true,
81 .lower_extract_byte = true,
82 .lower_extract_word = true,
83 .lower_insert_byte = true,
84 .lower_insert_word = true,
85 .lower_fdph = true,
86 .lower_flrp64 = true,
87 .lower_fmod = true,
88 .lower_uniforms_to_ubo = true,
89 .lower_vector_cmp = true,
90 .lower_int64_options = nir_lower_imul_2x32_64,
91 .max_unroll_iterations = 32,
92 .use_interpolated_input_intrinsics = true,
93
94 /* TGSI doesn't have a semantic for local or global index, just local and
95 * workgroup id.
96 */
97 .lower_cs_local_index_to_id = true,
98 .has_ddx_intrinsics = true,
99 };
100
101 static const void *
softpipe_get_compiler_options(struct pipe_screen * pscreen,enum pipe_shader_ir ir,enum pipe_shader_type shader)102 softpipe_get_compiler_options(struct pipe_screen *pscreen,
103 enum pipe_shader_ir ir,
104 enum pipe_shader_type shader)
105 {
106 assert(ir == PIPE_SHADER_IR_NIR);
107 return &sp_compiler_options;
108 }
109
110 static int
softpipe_get_param(struct pipe_screen * screen,enum pipe_cap param)111 softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
112 {
113 struct softpipe_screen *sp_screen = softpipe_screen(screen);
114 switch (param) {
115 case PIPE_CAP_NPOT_TEXTURES:
116 case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
117 case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
118 return 1;
119 case PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD:
120 case PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES:
121 return 1;
122 case PIPE_CAP_ANISOTROPIC_FILTER:
123 return 1;
124 case PIPE_CAP_MAX_RENDER_TARGETS:
125 return PIPE_MAX_COLOR_BUFS;
126 case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
127 return 1;
128 case PIPE_CAP_OCCLUSION_QUERY:
129 return 1;
130 case PIPE_CAP_QUERY_TIME_ELAPSED:
131 return 1;
132 case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
133 return 1;
134 case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
135 case PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE:
136 return 1;
137 case PIPE_CAP_TEXTURE_SWIZZLE:
138 return 1;
139 case PIPE_CAP_MAX_TEXTURE_2D_SIZE:
140 return 1 << (SP_MAX_TEXTURE_2D_LEVELS - 1);
141 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
142 return SP_MAX_TEXTURE_3D_LEVELS;
143 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
144 return SP_MAX_TEXTURE_CUBE_LEVELS;
145 case PIPE_CAP_BLEND_EQUATION_SEPARATE:
146 return 1;
147 case PIPE_CAP_INDEP_BLEND_ENABLE:
148 return 1;
149 case PIPE_CAP_INDEP_BLEND_FUNC:
150 return 1;
151 case PIPE_CAP_FS_COORD_ORIGIN_UPPER_LEFT:
152 case PIPE_CAP_FS_COORD_ORIGIN_LOWER_LEFT:
153 case PIPE_CAP_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
154 case PIPE_CAP_FS_COORD_PIXEL_CENTER_INTEGER:
155 return 1;
156 case PIPE_CAP_DEPTH_CLIP_DISABLE:
157 case PIPE_CAP_DEPTH_BOUNDS_TEST:
158 return 1;
159 case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
160 return PIPE_MAX_SO_BUFFERS;
161 case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
162 case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
163 return 16*4;
164 case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
165 case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
166 return 1024;
167 case PIPE_CAP_MAX_VERTEX_STREAMS:
168 if (sp_screen->use_llvm)
169 return 1;
170 else
171 return PIPE_MAX_VERTEX_STREAMS;
172 case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
173 return 2048;
174 case PIPE_CAP_PRIMITIVE_RESTART:
175 case PIPE_CAP_PRIMITIVE_RESTART_FIXED_INDEX:
176 return 1;
177 case PIPE_CAP_SHADER_STENCIL_EXPORT:
178 return 1;
179 case PIPE_CAP_IMAGE_ATOMIC_FLOAT_ADD:
180 case PIPE_CAP_VS_INSTANCEID:
181 case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
182 case PIPE_CAP_START_INSTANCE:
183 return 1;
184 case PIPE_CAP_SEAMLESS_CUBE_MAP:
185 case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
186 return 1;
187 case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
188 return 256; /* for GL3 */
189 case PIPE_CAP_MIN_TEXEL_OFFSET:
190 return -8;
191 case PIPE_CAP_MAX_TEXEL_OFFSET:
192 return 7;
193 case PIPE_CAP_CONDITIONAL_RENDER:
194 case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
195 case PIPE_CAP_VERTEX_COLOR_UNCLAMPED: /* draw module */
196 case PIPE_CAP_VERTEX_COLOR_CLAMPED: /* draw module */
197 return 1;
198 case PIPE_CAP_GLSL_FEATURE_LEVEL:
199 case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
200 return 400;
201 case PIPE_CAP_COMPUTE:
202 return 1;
203 case PIPE_CAP_USER_VERTEX_BUFFERS:
204 case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
205 case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
206 case PIPE_CAP_VS_LAYER_VIEWPORT:
207 case PIPE_CAP_DOUBLES:
208 case PIPE_CAP_INT64:
209 case PIPE_CAP_TGSI_DIV:
210 return 1;
211 case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
212 return 16;
213 case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
214 return 64;
215 case PIPE_CAP_QUERY_TIMESTAMP:
216 case PIPE_CAP_TIMER_RESOLUTION:
217 case PIPE_CAP_CUBE_MAP_ARRAY:
218 return 1;
219 case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
220 return 1;
221 case PIPE_CAP_MAX_TEXEL_BUFFER_ELEMENTS_UINT:
222 return 65536;
223 case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
224 return 16;
225 case PIPE_CAP_TEXTURE_TRANSFER_MODES:
226 return 0;
227 case PIPE_CAP_MAX_VIEWPORTS:
228 return PIPE_MAX_VIEWPORTS;
229 case PIPE_CAP_ENDIANNESS:
230 return PIPE_ENDIAN_NATIVE;
231 case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
232 return 4;
233 case PIPE_CAP_TEXTURE_GATHER_SM5:
234 case PIPE_CAP_TEXTURE_QUERY_LOD:
235 return 1;
236 case PIPE_CAP_VS_WINDOW_SPACE_POSITION:
237 return 1;
238 case PIPE_CAP_FS_FINE_DERIVATIVE:
239 return 1;
240 case PIPE_CAP_SAMPLER_VIEW_TARGET:
241 return 1;
242 case PIPE_CAP_FAKE_SW_MSAA:
243 return 1;
244 case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
245 return -32;
246 case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
247 return 31;
248 case PIPE_CAP_DRAW_INDIRECT:
249 return 1;
250 case PIPE_CAP_QUERY_SO_OVERFLOW:
251 return 1;
252 case PIPE_CAP_NIR_IMAGES_AS_DEREF:
253 return 0;
254
255 case PIPE_CAP_SHAREABLE_SHADERS:
256 /* Can't expose shareable shaders because the draw shaders reference the
257 * draw module's state, which is per-context.
258 */
259 return 0;
260
261 case PIPE_CAP_VENDOR_ID:
262 return 0xFFFFFFFF;
263 case PIPE_CAP_DEVICE_ID:
264 return 0xFFFFFFFF;
265 case PIPE_CAP_ACCELERATED:
266 return 0;
267 case PIPE_CAP_VIDEO_MEMORY: {
268 /* XXX: Do we want to return the full amount fo system memory ? */
269 uint64_t system_memory;
270
271 if (!os_get_total_physical_memory(&system_memory))
272 return 0;
273
274 if (sizeof(void *) == 4)
275 /* Cap to 2 GB on 32 bits system. We do this because softpipe does
276 * eat application memory, which is quite limited on 32 bits. App
277 * shouldn't expect too much available memory. */
278 system_memory = MIN2(system_memory, 2048 << 20);
279
280 return (int)(system_memory >> 20);
281 }
282 case PIPE_CAP_UMA:
283 return 0;
284 case PIPE_CAP_QUERY_MEMORY_INFO:
285 return 1;
286 case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
287 return 1;
288 case PIPE_CAP_CLIP_HALFZ:
289 case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
290 case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
291 return 1;
292 case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
293 case PIPE_CAP_CULL_DISTANCE:
294 case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
295 case PIPE_CAP_SHADER_ARRAY_COMPONENTS:
296 case PIPE_CAP_TGSI_TEXCOORD:
297 return 1;
298 case PIPE_CAP_MAX_VARYINGS:
299 return TGSI_EXEC_MAX_INPUT_ATTRIBS;
300 case PIPE_CAP_PCI_GROUP:
301 case PIPE_CAP_PCI_BUS:
302 case PIPE_CAP_PCI_DEVICE:
303 case PIPE_CAP_PCI_FUNCTION:
304 return 0;
305 case PIPE_CAP_MAX_GS_INVOCATIONS:
306 return 32;
307 case PIPE_CAP_MAX_SHADER_BUFFER_SIZE_UINT:
308 return 1 << 27;
309 case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
310 return 4;
311 case PIPE_CAP_IMAGE_STORE_FORMATTED:
312 return 1;
313 default:
314 return u_pipe_screen_get_param_defaults(screen, param);
315 }
316 }
317
318 static int
softpipe_get_shader_param(struct pipe_screen * screen,enum pipe_shader_type shader,enum pipe_shader_cap param)319 softpipe_get_shader_param(struct pipe_screen *screen,
320 enum pipe_shader_type shader,
321 enum pipe_shader_cap param)
322 {
323 struct softpipe_screen *sp_screen = softpipe_screen(screen);
324
325 switch (param) {
326 case PIPE_SHADER_CAP_SUPPORTED_IRS:
327 return (1 << PIPE_SHADER_IR_NIR) | (1 << PIPE_SHADER_IR_TGSI);
328 default:
329 break;
330 }
331
332 switch(shader)
333 {
334 case PIPE_SHADER_FRAGMENT:
335 return tgsi_exec_get_shader_param(param);
336 case PIPE_SHADER_COMPUTE:
337 return tgsi_exec_get_shader_param(param);
338 case PIPE_SHADER_VERTEX:
339 case PIPE_SHADER_GEOMETRY:
340 if (sp_screen->use_llvm)
341 return draw_get_shader_param(shader, param);
342 else
343 return draw_get_shader_param_no_llvm(shader, param);
344 default:
345 return 0;
346 }
347 }
348
349 static float
softpipe_get_paramf(struct pipe_screen * screen,enum pipe_capf param)350 softpipe_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
351 {
352 switch (param) {
353 case PIPE_CAPF_MIN_LINE_WIDTH:
354 case PIPE_CAPF_MIN_LINE_WIDTH_AA:
355 case PIPE_CAPF_MIN_POINT_SIZE:
356 case PIPE_CAPF_MIN_POINT_SIZE_AA:
357 return 1;
358 case PIPE_CAPF_POINT_SIZE_GRANULARITY:
359 case PIPE_CAPF_LINE_WIDTH_GRANULARITY:
360 return 0.1;
361 case PIPE_CAPF_MAX_LINE_WIDTH:
362 FALLTHROUGH;
363 case PIPE_CAPF_MAX_LINE_WIDTH_AA:
364 return 255.0; /* arbitrary */
365 case PIPE_CAPF_MAX_POINT_SIZE:
366 FALLTHROUGH;
367 case PIPE_CAPF_MAX_POINT_SIZE_AA:
368 return 255.0; /* arbitrary */
369 case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
370 return 16.0;
371 case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
372 return 16.0; /* arbitrary */
373 case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
374 return 0.0;
375 case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
376 return 0.0;
377 case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
378 return 0.0;
379 }
380 /* should only get here on unhandled cases */
381 debug_printf("Unexpected PIPE_CAPF %d query\n", param);
382 return 0.0;
383 }
384
385 /**
386 * Query format support for creating a texture, drawing surface, etc.
387 * \param format the format to test
388 * \param type one of PIPE_TEXTURE, PIPE_SURFACE
389 */
390 static bool
softpipe_is_format_supported(struct pipe_screen * screen,enum pipe_format format,enum pipe_texture_target target,unsigned sample_count,unsigned storage_sample_count,unsigned bind)391 softpipe_is_format_supported( struct pipe_screen *screen,
392 enum pipe_format format,
393 enum pipe_texture_target target,
394 unsigned sample_count,
395 unsigned storage_sample_count,
396 unsigned bind)
397 {
398 struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
399 const struct util_format_description *format_desc;
400
401 assert(target == PIPE_BUFFER ||
402 target == PIPE_TEXTURE_1D ||
403 target == PIPE_TEXTURE_1D_ARRAY ||
404 target == PIPE_TEXTURE_2D ||
405 target == PIPE_TEXTURE_2D_ARRAY ||
406 target == PIPE_TEXTURE_RECT ||
407 target == PIPE_TEXTURE_3D ||
408 target == PIPE_TEXTURE_CUBE ||
409 target == PIPE_TEXTURE_CUBE_ARRAY);
410
411 if (MAX2(1, sample_count) != MAX2(1, storage_sample_count))
412 return false;
413
414 format_desc = util_format_description(format);
415
416 if (sample_count > 1)
417 return false;
418
419 if (bind & (PIPE_BIND_DISPLAY_TARGET |
420 PIPE_BIND_SCANOUT |
421 PIPE_BIND_SHARED)) {
422 if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
423 return false;
424 }
425
426 if (bind & PIPE_BIND_RENDER_TARGET) {
427 if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
428 return false;
429
430 /*
431 * Although possible, it is unnatural to render into compressed or YUV
432 * surfaces. So disable these here to avoid going into weird paths
433 * inside gallium frontends.
434 */
435 if (format_desc->block.width != 1 ||
436 format_desc->block.height != 1)
437 return false;
438 }
439
440 if (bind & PIPE_BIND_DEPTH_STENCIL) {
441 if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
442 return false;
443 }
444
445 if (format_desc->layout == UTIL_FORMAT_LAYOUT_ASTC ||
446 format_desc->layout == UTIL_FORMAT_LAYOUT_ATC) {
447 /* Software decoding is not hooked up. */
448 return false;
449 }
450
451 if ((bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW)) &&
452 ((bind & PIPE_BIND_DISPLAY_TARGET) == 0) &&
453 target != PIPE_BUFFER) {
454 const struct util_format_description *desc =
455 util_format_description(format);
456 if (desc->nr_channels == 3 && desc->is_array) {
457 /* Don't support any 3-component formats for rendering/texturing
458 * since we don't support the corresponding 8-bit 3 channel UNORM
459 * formats. This allows us to support GL_ARB_copy_image between
460 * GL_RGB8 and GL_RGB8UI, for example. Otherwise, we may be asked to
461 * do a resource copy between PIPE_FORMAT_R8G8B8_UINT and
462 * PIPE_FORMAT_R8G8B8X8_UNORM, for example, which will not work
463 * (different bpp).
464 */
465 return false;
466 }
467 }
468
469 if (format_desc->layout == UTIL_FORMAT_LAYOUT_ETC &&
470 format != PIPE_FORMAT_ETC1_RGB8)
471 return false;
472
473 /*
474 * All other operations (sampling, transfer, etc).
475 */
476
477 /*
478 * Everything else should be supported by u_format.
479 */
480 return true;
481 }
482
483
484 static void
softpipe_destroy_screen(struct pipe_screen * screen)485 softpipe_destroy_screen( struct pipe_screen *screen )
486 {
487 FREE(screen);
488 }
489
490
491 /* This is often overriden by the co-state tracker.
492 */
493 static void
softpipe_flush_frontbuffer(struct pipe_screen * _screen,struct pipe_context * pipe,struct pipe_resource * resource,unsigned level,unsigned layer,void * context_private,unsigned nboxes,struct pipe_box * sub_box)494 softpipe_flush_frontbuffer(struct pipe_screen *_screen,
495 struct pipe_context *pipe,
496 struct pipe_resource *resource,
497 unsigned level, unsigned layer,
498 void *context_private,
499 unsigned nboxes,
500 struct pipe_box *sub_box)
501 {
502 struct softpipe_screen *screen = softpipe_screen(_screen);
503 struct sw_winsys *winsys = screen->winsys;
504 struct softpipe_resource *texture = softpipe_resource(resource);
505
506 assert(texture->dt);
507 if (texture->dt)
508 winsys->displaytarget_display(winsys, texture->dt, context_private, nboxes, sub_box);
509 }
510
511 static int
softpipe_get_compute_param(struct pipe_screen * _screen,enum pipe_shader_ir ir_type,enum pipe_compute_cap param,void * ret)512 softpipe_get_compute_param(struct pipe_screen *_screen,
513 enum pipe_shader_ir ir_type,
514 enum pipe_compute_cap param,
515 void *ret)
516 {
517 switch (param) {
518 case PIPE_COMPUTE_CAP_IR_TARGET:
519 return 0;
520 case PIPE_COMPUTE_CAP_MAX_GRID_SIZE:
521 if (ret) {
522 uint64_t *grid_size = ret;
523 grid_size[0] = 65535;
524 grid_size[1] = 65535;
525 grid_size[2] = 65535;
526 }
527 return 3 * sizeof(uint64_t) ;
528 case PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE:
529 if (ret) {
530 uint64_t *block_size = ret;
531 block_size[0] = 1024;
532 block_size[1] = 1024;
533 block_size[2] = 1024;
534 }
535 return 3 * sizeof(uint64_t);
536 case PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK:
537 if (ret) {
538 uint64_t *max_threads_per_block = ret;
539 *max_threads_per_block = 1024;
540 }
541 return sizeof(uint64_t);
542 case PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE:
543 if (ret) {
544 uint64_t *max_local_size = ret;
545 *max_local_size = 32768;
546 }
547 return sizeof(uint64_t);
548 case PIPE_COMPUTE_CAP_GRID_DIMENSION:
549 case PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE:
550 case PIPE_COMPUTE_CAP_MAX_PRIVATE_SIZE:
551 case PIPE_COMPUTE_CAP_MAX_INPUT_SIZE:
552 case PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE:
553 case PIPE_COMPUTE_CAP_MAX_CLOCK_FREQUENCY:
554 case PIPE_COMPUTE_CAP_MAX_COMPUTE_UNITS:
555 case PIPE_COMPUTE_CAP_IMAGES_SUPPORTED:
556 case PIPE_COMPUTE_CAP_SUBGROUP_SIZES:
557 case PIPE_COMPUTE_CAP_MAX_SUBGROUPS:
558 case PIPE_COMPUTE_CAP_ADDRESS_BITS:
559 case PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK:
560 break;
561 }
562 return 0;
563 }
564
565 static int
softpipe_screen_get_fd(struct pipe_screen * screen)566 softpipe_screen_get_fd(struct pipe_screen *screen)
567 {
568 struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
569
570 if (winsys->get_fd)
571 return winsys->get_fd(winsys);
572 else
573 return -1;
574 }
575
576 /**
577 * Create a new pipe_screen object
578 * Note: we're not presently subclassing pipe_screen (no softpipe_screen).
579 */
580 struct pipe_screen *
softpipe_create_screen(struct sw_winsys * winsys)581 softpipe_create_screen(struct sw_winsys *winsys)
582 {
583 struct softpipe_screen *screen = CALLOC_STRUCT(softpipe_screen);
584
585 if (!screen)
586 return NULL;
587
588 sp_debug = debug_get_option_sp_debug();
589
590 screen->winsys = winsys;
591
592 screen->base.destroy = softpipe_destroy_screen;
593
594 screen->base.get_name = softpipe_get_name;
595 screen->base.get_vendor = softpipe_get_vendor;
596 screen->base.get_device_vendor = softpipe_get_vendor; // TODO should be the CPU vendor
597 screen->base.get_screen_fd = softpipe_screen_get_fd;
598 screen->base.get_param = softpipe_get_param;
599 screen->base.get_shader_param = softpipe_get_shader_param;
600 screen->base.get_paramf = softpipe_get_paramf;
601 screen->base.get_timestamp = u_default_get_timestamp;
602 screen->base.query_memory_info = util_sw_query_memory_info;
603 screen->base.is_format_supported = softpipe_is_format_supported;
604 screen->base.context_create = softpipe_create_context;
605 screen->base.flush_frontbuffer = softpipe_flush_frontbuffer;
606 screen->base.get_compute_param = softpipe_get_compute_param;
607 screen->base.get_compiler_options = softpipe_get_compiler_options;
608 screen->use_llvm = sp_debug & SP_DBG_USE_LLVM;
609
610 softpipe_init_screen_texture_funcs(&screen->base);
611 softpipe_init_screen_fence_funcs(&screen->base);
612
613 return &screen->base;
614 }
615