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