1 /**************************************************************************
2 *
3 * Copyright 2007 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 "main/arrayobj.h"
30 #include "main/image.h"
31 #include "main/macros.h"
32 #include "main/varray.h"
33
34 #include "vbo/vbo.h"
35
36 #include "st_context.h"
37 #include "st_atom.h"
38 #include "st_cb_bitmap.h"
39 #include "st_cb_bufferobjects.h"
40 #include "st_draw.h"
41 #include "st_program.h"
42 #include "st_util.h"
43
44 #include "pipe/p_context.h"
45 #include "pipe/p_defines.h"
46 #include "util/u_inlines.h"
47 #include "util/u_draw.h"
48 #include "util/format/u_format.h"
49
50 #include "draw/draw_private.h"
51 #include "draw/draw_context.h"
52
53
54 /**
55 * Set the (private) draw module's post-transformed vertex format when in
56 * GL_SELECT or GL_FEEDBACK mode or for glRasterPos.
57 */
58 static void
set_feedback_vertex_format(struct gl_context * ctx)59 set_feedback_vertex_format(struct gl_context *ctx)
60 {
61 #if 0
62 struct st_context *st = st_context(ctx);
63 struct vertex_info vinfo;
64 GLuint i;
65
66 memset(&vinfo, 0, sizeof(vinfo));
67
68 if (ctx->RenderMode == GL_SELECT) {
69 assert(ctx->RenderMode == GL_SELECT);
70 vinfo.num_attribs = 1;
71 vinfo.format[0] = FORMAT_4F;
72 vinfo.interp_mode[0] = INTERP_LINEAR;
73 }
74 else {
75 /* GL_FEEDBACK, or glRasterPos */
76 /* emit all attribs (pos, color, texcoord) as GLfloat[4] */
77 vinfo.num_attribs = st->state.vs->cso->state.num_outputs;
78 for (i = 0; i < vinfo.num_attribs; i++) {
79 vinfo.format[i] = FORMAT_4F;
80 vinfo.interp_mode[i] = INTERP_LINEAR;
81 }
82 }
83
84 draw_set_vertex_info(st->draw, &vinfo);
85 #endif
86 }
87
88
89 /**
90 * Called by VBO to draw arrays when in selection or feedback mode and
91 * to implement glRasterPos.
92 * This function mirrors the normal st_draw_vbo().
93 * Look at code refactoring some day.
94 */
95 void
st_feedback_draw_vbo(struct gl_context * ctx,const struct _mesa_prim * prims,unsigned nr_prims,const struct _mesa_index_buffer * ib,bool index_bounds_valid,bool primitive_restart,unsigned restart_index,unsigned min_index,unsigned max_index,unsigned num_instances,unsigned base_instance)96 st_feedback_draw_vbo(struct gl_context *ctx,
97 const struct _mesa_prim *prims,
98 unsigned nr_prims,
99 const struct _mesa_index_buffer *ib,
100 bool index_bounds_valid,
101 bool primitive_restart,
102 unsigned restart_index,
103 unsigned min_index,
104 unsigned max_index,
105 unsigned num_instances,
106 unsigned base_instance)
107 {
108 struct st_context *st = st_context(ctx);
109 struct pipe_context *pipe = st->pipe;
110 struct draw_context *draw = st_get_draw_context(st);
111 const struct st_vertex_program *vp;
112 struct st_common_variant *vp_variant;
113 struct pipe_vertex_buffer vbuffers[PIPE_MAX_SHADER_INPUTS];
114 unsigned num_vbuffers = 0;
115 struct cso_velems_state velements;
116 struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = {NULL};
117 struct pipe_transfer *ib_transfer = NULL;
118 GLuint i;
119 const void *mapped_indices = NULL;
120 struct pipe_draw_info info;
121
122 if (!draw)
123 return;
124
125 /* Initialize pipe_draw_info. */
126 info.primitive_restart = false;
127 info.take_index_buffer_ownership = false;
128 info.restart_index = 0;
129 info.view_mask = 0;
130
131 st_flush_bitmap_cache(st);
132 st_invalidate_readpix_cache(st);
133
134 st_validate_state(st, ST_PIPELINE_RENDER);
135
136 if (ib && !index_bounds_valid) {
137 vbo_get_minmax_indices(ctx, prims, ib, &min_index, &max_index, nr_prims,
138 primitive_restart, restart_index);
139 index_bounds_valid = true;
140 }
141
142 /* must get these after state validation! */
143 struct st_common_variant_key key;
144 /* We have to use memcpy to make sure that all bits are copied. */
145 memcpy(&key, &st->vp_variant->key, sizeof(key));
146 key.is_draw_shader = true;
147
148 vp = (struct st_vertex_program *)st->vp;
149 vp_variant = st_get_common_variant(st, st->vp, &key);
150
151 /*
152 * Set up the draw module's state.
153 *
154 * We'd like to do this less frequently, but the normal state-update
155 * code sends state updates to the pipe, not to our private draw module.
156 */
157 assert(draw);
158 draw_set_viewport_states(draw, 0, 1, &st->state.viewport[0]);
159 draw_set_clip_state(draw, &st->state.clip);
160 draw_set_rasterizer_state(draw, &st->state.rasterizer, NULL);
161 draw_bind_vertex_shader(draw, vp_variant->base.driver_shader);
162 set_feedback_vertex_format(ctx);
163
164 /* Must setup these after state validation! */
165 /* Setup arrays */
166 bool uses_user_vertex_buffers;
167 st_setup_arrays(st, vp, vp_variant, &velements, vbuffers, &num_vbuffers,
168 &uses_user_vertex_buffers);
169 /* Setup current values as userspace arrays */
170 st_setup_current_user(st, vp, vp_variant, &velements, vbuffers, &num_vbuffers);
171
172 /* Map all buffers and tell draw about their mapping */
173 for (unsigned buf = 0; buf < num_vbuffers; ++buf) {
174 struct pipe_vertex_buffer *vbuffer = &vbuffers[buf];
175
176 if (vbuffer->is_user_buffer) {
177 draw_set_mapped_vertex_buffer(draw, buf, vbuffer->buffer.user, ~0);
178 } else {
179 void *map = pipe_buffer_map(pipe, vbuffer->buffer.resource,
180 PIPE_MAP_READ, &vb_transfer[buf]);
181 draw_set_mapped_vertex_buffer(draw, buf, map,
182 vbuffer->buffer.resource->width0);
183 }
184 }
185
186 draw_set_vertex_buffers(draw, 0, num_vbuffers, 0, vbuffers);
187 draw_set_vertex_elements(draw, vp->num_inputs, velements.velems);
188
189 unsigned start = 0;
190
191 if (ib) {
192 struct gl_buffer_object *bufobj = ib->obj;
193 unsigned index_size = 1 << ib->index_size_shift;
194
195 if (index_size == 0)
196 goto out_unref_vertex;
197
198 if (bufobj && bufobj->Name) {
199 struct st_buffer_object *stobj = st_buffer_object(bufobj);
200
201 start = pointer_to_offset(ib->ptr) >> ib->index_size_shift;
202 mapped_indices = pipe_buffer_map(pipe, stobj->buffer,
203 PIPE_MAP_READ, &ib_transfer);
204 }
205 else {
206 mapped_indices = ib->ptr;
207 }
208
209 info.index_size = index_size;
210 info.index_bounds_valid = index_bounds_valid;
211 info.min_index = min_index;
212 info.max_index = max_index;
213 info.has_user_indices = true;
214 info.index.user = mapped_indices;
215
216 draw_set_indexes(draw,
217 (ubyte *) mapped_indices,
218 index_size, ~0);
219
220 info.primitive_restart = primitive_restart;
221 info.restart_index = restart_index;
222 } else {
223 info.index_size = 0;
224 info.has_user_indices = false;
225 }
226
227 /* set constant buffer 0 */
228 struct gl_program_parameter_list *params = st->vp->Base.Parameters;
229
230 /* Update the constants which come from fixed-function state, such as
231 * transformation matrices, fog factors, etc.
232 *
233 * It must be done here if the state tracker doesn't update state vars
234 * in gl_program_parameter_list because allow_constbuf0_as_real_buffer
235 * is set.
236 */
237 if (st->prefer_real_buffer_in_constbuf0 && params->StateFlags)
238 _mesa_load_state_parameters(st->ctx, params);
239
240 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0,
241 params->ParameterValues,
242 params->NumParameterValues * 4);
243
244 /* set uniform buffers */
245 const struct gl_program *prog = &vp->Base.Base;
246 struct pipe_transfer *ubo_transfer[PIPE_MAX_CONSTANT_BUFFERS] = {0};
247 assert(prog->info.num_ubos <= ARRAY_SIZE(ubo_transfer));
248
249 for (unsigned i = 0; i < prog->sh.NumUniformBlocks; i++) {
250 struct gl_buffer_binding *binding =
251 &st->ctx->UniformBufferBindings[prog->sh.UniformBlocks[i]->Binding];
252 struct st_buffer_object *st_obj = st_buffer_object(binding->BufferObject);
253 struct pipe_resource *buf = st_obj->buffer;
254
255 if (!buf)
256 continue;
257
258 unsigned offset = binding->Offset;
259 unsigned size = buf->width0 - offset;
260
261 /* AutomaticSize is FALSE if the buffer was set with BindBufferRange.
262 * Take the minimum just to be sure.
263 */
264 if (!binding->AutomaticSize)
265 size = MIN2(size, (unsigned) binding->Size);
266
267 void *ptr = pipe_buffer_map_range(pipe, buf, offset, size,
268 PIPE_MAP_READ, &ubo_transfer[i]);
269
270 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i, ptr,
271 size);
272 }
273
274 /* shader buffers */
275 /* TODO: atomic counter buffers */
276 struct pipe_transfer *ssbo_transfer[PIPE_MAX_SHADER_BUFFERS] = {0};
277
278 for (unsigned i = 0; i < prog->info.num_ssbos; i++) {
279 struct gl_buffer_binding *binding =
280 &st->ctx->ShaderStorageBufferBindings[
281 prog->sh.ShaderStorageBlocks[i]->Binding];
282 struct st_buffer_object *st_obj = st_buffer_object(binding->BufferObject);
283 struct pipe_resource *buf = st_obj->buffer;
284
285 if (!buf)
286 continue;
287
288 unsigned offset = binding->Offset;
289 unsigned size = buf->width0 - binding->Offset;
290
291 /* AutomaticSize is FALSE if the buffer was set with BindBufferRange.
292 * Take the minimum just to be sure.
293 */
294 if (!binding->AutomaticSize)
295 size = MIN2(size, (unsigned) binding->Size);
296
297 void *ptr = pipe_buffer_map_range(pipe, buf, offset, size,
298 PIPE_MAP_READ, &ssbo_transfer[i]);
299
300 draw_set_mapped_shader_buffer(draw, PIPE_SHADER_VERTEX,
301 i, ptr, size);
302 }
303
304 /* samplers */
305 struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
306 for (unsigned i = 0; i < st->state.num_vert_samplers; i++)
307 samplers[i] = &st->state.vert_samplers[i];
308
309 draw_set_samplers(draw, PIPE_SHADER_VERTEX, samplers,
310 st->state.num_vert_samplers);
311
312 /* sampler views */
313 struct pipe_sampler_view *views[PIPE_MAX_SAMPLERS];
314 unsigned num_views =
315 st_get_sampler_views(st, PIPE_SHADER_VERTEX, prog, views);
316
317 draw_set_sampler_views(draw, PIPE_SHADER_VERTEX, views, num_views);
318
319 struct pipe_transfer *sv_transfer[PIPE_MAX_SAMPLERS][PIPE_MAX_TEXTURE_LEVELS];
320
321 for (unsigned i = 0; i < num_views; i++) {
322 struct pipe_sampler_view *view = views[i];
323 if (!view)
324 continue;
325
326 struct pipe_resource *res = view->texture;
327 unsigned width0 = res->width0;
328 unsigned num_layers = res->depth0;
329 unsigned first_level = 0;
330 unsigned last_level = 0;
331 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
332 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
333 uint32_t mip_offset[PIPE_MAX_TEXTURE_LEVELS];
334 uintptr_t mip_addr[PIPE_MAX_TEXTURE_LEVELS];
335 uintptr_t base_addr;
336
337 if (res->target != PIPE_BUFFER) {
338 first_level = view->u.tex.first_level;
339 last_level = view->u.tex.last_level;
340 num_layers = view->u.tex.last_layer - view->u.tex.first_layer + 1;
341 base_addr = UINTPTR_MAX;
342
343 for (unsigned j = first_level; j <= last_level; j++) {
344 unsigned map_layers = res->target == PIPE_TEXTURE_3D ?
345 util_num_layers(res, j) : num_layers;
346
347 sv_transfer[i][j] = NULL;
348 mip_addr[j] = (uintptr_t)
349 pipe_texture_map_3d(pipe, res, j,
350 PIPE_MAP_READ, 0, 0,
351 view->u.tex.first_layer,
352 u_minify(res->width0, j),
353 u_minify(res->height0, j),
354 map_layers, &sv_transfer[i][j]);
355 row_stride[j] = sv_transfer[i][j]->stride;
356 img_stride[j] = sv_transfer[i][j]->layer_stride;
357
358 /* Get the minimum address, because the draw module takes only
359 * 1 address for the whole texture + uint32 offsets for mip levels,
360 * so we need to convert mapped resource pointers into that scheme.
361 */
362 base_addr = MIN2(base_addr, mip_addr[j]);
363 }
364 for (unsigned j = first_level; j <= last_level; j++) {
365 /* TODO: The draw module should accept pointers for mipmap levels
366 * instead of offsets. This is unlikely to work on 64-bit archs.
367 */
368 assert(mip_addr[j] - base_addr <= UINT32_MAX);
369 mip_offset[j] = mip_addr[j] - base_addr;
370 }
371 } else {
372 width0 = view->u.buf.size / util_format_get_blocksize(view->format);
373
374 /* probably don't really need to fill that out */
375 mip_offset[0] = 0;
376 row_stride[0] = 0;
377 img_stride[0] = 0;
378
379 sv_transfer[i][0] = NULL;
380 base_addr = (uintptr_t)
381 pipe_buffer_map_range(pipe, res, view->u.buf.offset,
382 view->u.buf.size,
383 PIPE_MAP_READ,
384 &sv_transfer[i][0]);
385 }
386
387 draw_set_mapped_texture(draw, PIPE_SHADER_VERTEX, i, width0,
388 res->height0, num_layers, first_level,
389 last_level, 0, 0, (void*)base_addr, row_stride,
390 img_stride, mip_offset);
391 }
392
393 /* shader images */
394 struct pipe_image_view images[PIPE_MAX_SHADER_IMAGES];
395 struct pipe_transfer *img_transfer[PIPE_MAX_SHADER_IMAGES] = {0};
396
397 for (unsigned i = 0; i < prog->info.num_images; i++) {
398 struct pipe_image_view *img = &images[i];
399
400 st_convert_image_from_unit(st, img, prog->sh.ImageUnits[i],
401 prog->sh.ImageAccess[i]);
402
403 struct pipe_resource *res = img->resource;
404 if (!res)
405 continue;
406
407 unsigned width, height, num_layers, row_stride, img_stride;
408 void *addr;
409
410 if (res->target != PIPE_BUFFER) {
411 width = u_minify(res->width0, img->u.tex.level);
412 height = u_minify(res->height0, img->u.tex.level);
413 num_layers = img->u.tex.last_layer - img->u.tex.first_layer + 1;
414
415 addr = pipe_texture_map_3d(pipe, res, img->u.tex.level,
416 PIPE_MAP_READ, 0, 0,
417 img->u.tex.first_layer,
418 width, height, num_layers,
419 &img_transfer[i]);
420 row_stride = img_transfer[i]->stride;
421 img_stride = img_transfer[i]->layer_stride;
422 } else {
423 width = img->u.buf.size / util_format_get_blocksize(img->format);
424
425 /* probably don't really need to fill that out */
426 row_stride = 0;
427 img_stride = 0;
428 height = num_layers = 1;
429
430 addr = pipe_buffer_map_range(pipe, res, img->u.buf.offset,
431 img->u.buf.size, PIPE_MAP_READ,
432 &img_transfer[i]);
433 }
434
435 draw_set_mapped_image(draw, PIPE_SHADER_VERTEX, i, width, height,
436 num_layers, addr, row_stride, img_stride, 0, 0);
437 }
438 draw_set_images(draw, PIPE_SHADER_VERTEX, images, prog->info.num_images);
439
440 info.start_instance = base_instance;
441 info.instance_count = num_instances;
442
443 /* draw here */
444 for (i = 0; i < nr_prims; i++) {
445 struct pipe_draw_start_count_bias d;
446
447 d.count = prims[i].count;
448
449 if (!d.count)
450 continue;
451
452 d.start = start + prims[i].start;
453
454 info.mode = prims[i].mode;
455 d.index_bias = prims[i].basevertex;
456 if (!ib) {
457 info.min_index = d.start;
458 info.max_index = d.start + d.count - 1;
459 }
460
461 draw_vbo(draw, &info, prims[i].draw_id, NULL, &d, 1,
462 ctx->TessCtrlProgram.patch_vertices);
463 }
464
465 /* unmap images */
466 for (unsigned i = 0; i < prog->info.num_images; i++) {
467 if (img_transfer[i]) {
468 draw_set_mapped_image(draw, PIPE_SHADER_VERTEX, i, 0, 0, 0, NULL, 0, 0, 0, 0);
469 if (img_transfer[i]->resource->target == PIPE_BUFFER)
470 pipe_buffer_unmap(pipe, img_transfer[i]);
471 else
472 pipe_texture_unmap(pipe, img_transfer[i]);
473 }
474 }
475
476 /* unmap sampler views */
477 for (unsigned i = 0; i < num_views; i++) {
478 struct pipe_sampler_view *view = views[i];
479
480 if (view) {
481 if (view->texture->target != PIPE_BUFFER) {
482 for (unsigned j = view->u.tex.first_level;
483 j <= view->u.tex.last_level; j++) {
484 pipe_texture_unmap(pipe, sv_transfer[i][j]);
485 }
486 } else {
487 pipe_buffer_unmap(pipe, sv_transfer[i][0]);
488 }
489
490 pipe_sampler_view_reference(&views[i], NULL);
491 }
492 }
493
494 draw_set_samplers(draw, PIPE_SHADER_VERTEX, NULL, 0);
495 draw_set_sampler_views(draw, PIPE_SHADER_VERTEX, NULL, 0);
496
497 for (unsigned i = 0; i < prog->info.num_ssbos; i++) {
498 if (ssbo_transfer[i]) {
499 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i,
500 NULL, 0);
501 pipe_buffer_unmap(pipe, ssbo_transfer[i]);
502 }
503 }
504
505 for (unsigned i = 0; i < prog->info.num_ubos; i++) {
506 if (ubo_transfer[i]) {
507 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i,
508 NULL, 0);
509 pipe_buffer_unmap(pipe, ubo_transfer[i]);
510 }
511 }
512
513 /*
514 * unmap vertex/index buffers
515 */
516 if (ib) {
517 draw_set_indexes(draw, NULL, 0, 0);
518 if (ib_transfer)
519 pipe_buffer_unmap(pipe, ib_transfer);
520 }
521
522 out_unref_vertex:
523 for (unsigned buf = 0; buf < num_vbuffers; ++buf) {
524 if (vb_transfer[buf])
525 pipe_buffer_unmap(pipe, vb_transfer[buf]);
526 draw_set_mapped_vertex_buffer(draw, buf, NULL, 0);
527 }
528 draw_set_vertex_buffers(draw, 0, 0, num_vbuffers, NULL);
529
530 draw_bind_vertex_shader(draw, NULL);
531 }
532