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,GLuint nr_prims,const struct _mesa_index_buffer * ib,GLboolean index_bounds_valid,GLuint min_index,GLuint max_index,GLuint num_instances,GLuint base_instance,struct gl_transform_feedback_object * tfb_vertcount,unsigned stream)96 st_feedback_draw_vbo(struct gl_context *ctx,
97 const struct _mesa_prim *prims,
98 GLuint nr_prims,
99 const struct _mesa_index_buffer *ib,
100 GLboolean index_bounds_valid,
101 GLuint min_index,
102 GLuint max_index,
103 GLuint num_instances,
104 GLuint base_instance,
105 struct gl_transform_feedback_object *tfb_vertcount,
106 unsigned stream)
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.vertices_per_patch = ctx->TessCtrlProgram.patch_vertices;
128 info.indirect = NULL;
129 info.count_from_stream_output = NULL;
130 info.restart_index = 0;
131
132 st_flush_bitmap_cache(st);
133 st_invalidate_readpix_cache(st);
134
135 st_validate_state(st, ST_PIPELINE_RENDER);
136
137 if (ib && !index_bounds_valid)
138 vbo_get_minmax_indices(ctx, prims, ib, &min_index, &max_index, nr_prims);
139
140 /* must get these after state validation! */
141 struct st_common_variant_key key;
142 /* We have to use memcpy to make sure that all bits are copied. */
143 memcpy(&key, &st->vp_variant->key, sizeof(key));
144 key.is_draw_shader = true;
145
146 vp = (struct st_vertex_program *)st->vp;
147 vp_variant = st_get_vp_variant(st, st->vp, &key);
148
149 /*
150 * Set up the draw module's state.
151 *
152 * We'd like to do this less frequently, but the normal state-update
153 * code sends state updates to the pipe, not to our private draw module.
154 */
155 assert(draw);
156 draw_set_viewport_states(draw, 0, 1, &st->state.viewport[0]);
157 draw_set_clip_state(draw, &st->state.clip);
158 draw_set_rasterizer_state(draw, &st->state.rasterizer, NULL);
159 draw_bind_vertex_shader(draw, vp_variant->base.driver_shader);
160 set_feedback_vertex_format(ctx);
161
162 /* Must setup these after state validation! */
163 /* Setup arrays */
164 bool uses_user_vertex_buffers;
165 st_setup_arrays(st, vp, vp_variant, &velements, vbuffers, &num_vbuffers,
166 &uses_user_vertex_buffers);
167 /* Setup current values as userspace arrays */
168 st_setup_current_user(st, vp, vp_variant, &velements, vbuffers, &num_vbuffers);
169
170 /* Map all buffers and tell draw about their mapping */
171 for (unsigned buf = 0; buf < num_vbuffers; ++buf) {
172 struct pipe_vertex_buffer *vbuffer = &vbuffers[buf];
173
174 if (vbuffer->is_user_buffer) {
175 draw_set_mapped_vertex_buffer(draw, buf, vbuffer->buffer.user, ~0);
176 } else {
177 void *map = pipe_buffer_map(pipe, vbuffer->buffer.resource,
178 PIPE_MAP_READ, &vb_transfer[buf]);
179 draw_set_mapped_vertex_buffer(draw, buf, map,
180 vbuffer->buffer.resource->width0);
181 }
182 }
183
184 draw_set_vertex_buffers(draw, 0, num_vbuffers, vbuffers);
185 draw_set_vertex_elements(draw, vp->num_inputs, velements.velems);
186
187 unsigned start = 0;
188
189 if (ib) {
190 struct gl_buffer_object *bufobj = ib->obj;
191 unsigned index_size = 1 << ib->index_size_shift;
192
193 if (index_size == 0)
194 goto out_unref_vertex;
195
196 if (bufobj && bufobj->Name) {
197 struct st_buffer_object *stobj = st_buffer_object(bufobj);
198
199 start = pointer_to_offset(ib->ptr) >> ib->index_size_shift;
200 mapped_indices = pipe_buffer_map(pipe, stobj->buffer,
201 PIPE_MAP_READ, &ib_transfer);
202 }
203 else {
204 mapped_indices = ib->ptr;
205 }
206
207 info.index_size = index_size;
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 if (ctx->Array._PrimitiveRestart) {
218 info.primitive_restart = true;
219 info.restart_index = ctx->Array._RestartIndex[index_size - 1];
220 }
221 } else {
222 info.index_size = 0;
223 info.has_user_indices = false;
224 }
225
226 /* set constant buffers */
227 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0,
228 st->state.constants[PIPE_SHADER_VERTEX].ptr,
229 st->state.constants[PIPE_SHADER_VERTEX].size);
230
231 const struct gl_program *prog = &vp->Base.Base;
232 struct pipe_transfer *ubo_transfer[PIPE_MAX_CONSTANT_BUFFERS] = {0};
233 assert(prog->info.num_ubos <= ARRAY_SIZE(ubo_transfer));
234
235 for (unsigned i = 0; i < prog->sh.NumUniformBlocks; i++) {
236 struct gl_buffer_binding *binding =
237 &st->ctx->UniformBufferBindings[prog->sh.UniformBlocks[i]->Binding];
238 struct st_buffer_object *st_obj = st_buffer_object(binding->BufferObject);
239 struct pipe_resource *buf = st_obj->buffer;
240
241 if (!buf)
242 continue;
243
244 unsigned offset = binding->Offset;
245 unsigned size = buf->width0 - offset;
246
247 /* AutomaticSize is FALSE if the buffer was set with BindBufferRange.
248 * Take the minimum just to be sure.
249 */
250 if (!binding->AutomaticSize)
251 size = MIN2(size, (unsigned) binding->Size);
252
253 void *ptr = pipe_buffer_map_range(pipe, buf, offset, size,
254 PIPE_MAP_READ, &ubo_transfer[i]);
255
256 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i, ptr,
257 size);
258 }
259
260 /* shader buffers */
261 /* TODO: atomic counter buffers */
262 struct pipe_transfer *ssbo_transfer[PIPE_MAX_SHADER_BUFFERS] = {0};
263
264 for (unsigned i = 0; i < prog->info.num_ssbos; i++) {
265 struct gl_buffer_binding *binding =
266 &st->ctx->ShaderStorageBufferBindings[
267 prog->sh.ShaderStorageBlocks[i]->Binding];
268 struct st_buffer_object *st_obj = st_buffer_object(binding->BufferObject);
269 struct pipe_resource *buf = st_obj->buffer;
270
271 if (!buf)
272 continue;
273
274 unsigned offset = binding->Offset;
275 unsigned size = buf->width0 - binding->Offset;
276
277 /* AutomaticSize is FALSE if the buffer was set with BindBufferRange.
278 * Take the minimum just to be sure.
279 */
280 if (!binding->AutomaticSize)
281 size = MIN2(size, (unsigned) binding->Size);
282
283 void *ptr = pipe_buffer_map_range(pipe, buf, offset, size,
284 PIPE_MAP_READ, &ssbo_transfer[i]);
285
286 draw_set_mapped_shader_buffer(draw, PIPE_SHADER_VERTEX,
287 i, ptr, size);
288 }
289
290 /* samplers */
291 struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
292 for (unsigned i = 0; i < st->state.num_vert_samplers; i++)
293 samplers[i] = &st->state.vert_samplers[i];
294
295 draw_set_samplers(draw, PIPE_SHADER_VERTEX, samplers,
296 st->state.num_vert_samplers);
297
298 /* sampler views */
299 draw_set_sampler_views(draw, PIPE_SHADER_VERTEX,
300 st->state.vert_sampler_views,
301 st->state.num_sampler_views[PIPE_SHADER_VERTEX]);
302
303 struct pipe_transfer *sv_transfer[PIPE_MAX_SAMPLERS][PIPE_MAX_TEXTURE_LEVELS];
304
305 for (unsigned i = 0; i < st->state.num_sampler_views[PIPE_SHADER_VERTEX]; i++) {
306 struct pipe_sampler_view *view = st->state.vert_sampler_views[i];
307 if (!view)
308 continue;
309
310 struct pipe_resource *res = view->texture;
311 unsigned width0 = res->width0;
312 unsigned num_layers = res->depth0;
313 unsigned first_level = 0;
314 unsigned last_level = 0;
315 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
316 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
317 uint32_t mip_offset[PIPE_MAX_TEXTURE_LEVELS];
318 uintptr_t mip_addr[PIPE_MAX_TEXTURE_LEVELS];
319 uintptr_t base_addr;
320
321 if (res->target != PIPE_BUFFER) {
322 first_level = view->u.tex.first_level;
323 last_level = view->u.tex.last_level;
324 num_layers = view->u.tex.last_layer - view->u.tex.first_layer + 1;
325 base_addr = UINTPTR_MAX;
326
327 for (unsigned j = first_level; j <= last_level; j++) {
328 unsigned map_layers = res->target == PIPE_TEXTURE_3D ?
329 util_num_layers(res, j) : num_layers;
330
331 sv_transfer[i][j] = NULL;
332 mip_addr[j] = (uintptr_t)
333 pipe_transfer_map_3d(pipe, res, j,
334 PIPE_MAP_READ, 0, 0,
335 view->u.tex.first_layer,
336 u_minify(res->width0, j),
337 u_minify(res->height0, j),
338 map_layers, &sv_transfer[i][j]);
339 row_stride[j] = sv_transfer[i][j]->stride;
340 img_stride[j] = sv_transfer[i][j]->layer_stride;
341
342 /* Get the minimum address, because the draw module takes only
343 * 1 address for the whole texture + uint32 offsets for mip levels,
344 * so we need to convert mapped resource pointers into that scheme.
345 */
346 base_addr = MIN2(base_addr, mip_addr[j]);
347 }
348 for (unsigned j = first_level; j <= last_level; j++) {
349 /* TODO: The draw module should accept pointers for mipmap levels
350 * instead of offsets. This is unlikely to work on 64-bit archs.
351 */
352 assert(mip_addr[j] - base_addr <= UINT32_MAX);
353 mip_offset[j] = mip_addr[j] - base_addr;
354 }
355 } else {
356 width0 = view->u.buf.size / util_format_get_blocksize(view->format);
357
358 /* probably don't really need to fill that out */
359 mip_offset[0] = 0;
360 row_stride[0] = 0;
361 img_stride[0] = 0;
362
363 sv_transfer[i][0] = NULL;
364 base_addr = (uintptr_t)
365 pipe_buffer_map_range(pipe, res, view->u.buf.offset,
366 view->u.buf.size,
367 PIPE_MAP_READ,
368 &sv_transfer[i][0]);
369 }
370
371 draw_set_mapped_texture(draw, PIPE_SHADER_VERTEX, i, width0,
372 res->height0, num_layers, first_level,
373 last_level, 0, 0, (void*)base_addr, row_stride,
374 img_stride, mip_offset);
375 }
376
377 /* shader images */
378 struct pipe_image_view images[PIPE_MAX_SHADER_IMAGES];
379 struct pipe_transfer *img_transfer[PIPE_MAX_SHADER_IMAGES] = {0};
380
381 for (unsigned i = 0; i < prog->info.num_images; i++) {
382 struct pipe_image_view *img = &images[i];
383
384 st_convert_image_from_unit(st, img, prog->sh.ImageUnits[i],
385 prog->sh.ImageAccess[i]);
386
387 struct pipe_resource *res = img->resource;
388 if (!res)
389 continue;
390
391 unsigned width, height, num_layers, row_stride, img_stride;
392 void *addr;
393
394 if (res->target != PIPE_BUFFER) {
395 width = u_minify(res->width0, img->u.tex.level);
396 height = u_minify(res->height0, img->u.tex.level);
397 num_layers = img->u.tex.last_layer - img->u.tex.first_layer + 1;
398
399 addr = pipe_transfer_map_3d(pipe, res, img->u.tex.level,
400 PIPE_MAP_READ, 0, 0,
401 img->u.tex.first_layer,
402 width, height, num_layers,
403 &img_transfer[i]);
404 row_stride = img_transfer[i]->stride;
405 img_stride = img_transfer[i]->layer_stride;
406 } else {
407 width = img->u.buf.size / util_format_get_blocksize(img->format);
408
409 /* probably don't really need to fill that out */
410 row_stride = 0;
411 img_stride = 0;
412 height = num_layers = 1;
413
414 addr = pipe_buffer_map_range(pipe, res, img->u.buf.offset,
415 img->u.buf.size, PIPE_MAP_READ,
416 &img_transfer[i]);
417 }
418
419 draw_set_mapped_image(draw, PIPE_SHADER_VERTEX, i, width, height,
420 num_layers, addr, row_stride, img_stride, 0, 0);
421 }
422 draw_set_images(draw, PIPE_SHADER_VERTEX, images, prog->info.num_images);
423
424 info.start_instance = base_instance;
425 info.instance_count = num_instances;
426
427 /* draw here */
428 for (i = 0; i < nr_prims; i++) {
429 info.count = prims[i].count;
430
431 if (!info.count)
432 continue;
433
434 info.mode = prims[i].mode;
435 info.start = start + prims[i].start;
436 info.index_bias = prims[i].basevertex;
437 info.drawid = prims[i].draw_id;
438 if (!ib) {
439 info.min_index = info.start;
440 info.max_index = info.start + info.count - 1;
441 }
442
443 draw_vbo(draw, &info);
444 }
445
446 /* unmap images */
447 for (unsigned i = 0; i < prog->info.num_images; i++) {
448 if (img_transfer[i]) {
449 draw_set_mapped_image(draw, PIPE_SHADER_VERTEX, i, 0, 0, 0, NULL, 0, 0, 0, 0);
450 pipe_transfer_unmap(pipe, img_transfer[i]);
451 }
452 }
453
454 /* unmap sampler views */
455 for (unsigned i = 0; i < st->state.num_sampler_views[PIPE_SHADER_VERTEX]; i++) {
456 struct pipe_sampler_view *view = st->state.vert_sampler_views[i];
457
458 if (view) {
459 if (view->texture->target != PIPE_BUFFER) {
460 for (unsigned j = view->u.tex.first_level;
461 j <= view->u.tex.last_level; j++) {
462 pipe_transfer_unmap(pipe, sv_transfer[i][j]);
463 }
464 } else {
465 pipe_transfer_unmap(pipe, sv_transfer[i][0]);
466 }
467 }
468 }
469
470 draw_set_samplers(draw, PIPE_SHADER_VERTEX, NULL, 0);
471 draw_set_sampler_views(draw, PIPE_SHADER_VERTEX, NULL, 0);
472
473 for (unsigned i = 0; i < prog->info.num_ssbos; i++) {
474 if (ssbo_transfer[i]) {
475 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i,
476 NULL, 0);
477 pipe_buffer_unmap(pipe, ssbo_transfer[i]);
478 }
479 }
480
481 for (unsigned i = 0; i < prog->info.num_ubos; i++) {
482 if (ubo_transfer[i]) {
483 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i,
484 NULL, 0);
485 pipe_buffer_unmap(pipe, ubo_transfer[i]);
486 }
487 }
488
489 /*
490 * unmap vertex/index buffers
491 */
492 if (ib) {
493 draw_set_indexes(draw, NULL, 0, 0);
494 if (ib_transfer)
495 pipe_buffer_unmap(pipe, ib_transfer);
496 }
497
498 out_unref_vertex:
499 for (unsigned buf = 0; buf < num_vbuffers; ++buf) {
500 if (vb_transfer[buf])
501 pipe_buffer_unmap(pipe, vb_transfer[buf]);
502 draw_set_mapped_vertex_buffer(draw, buf, NULL, 0);
503 }
504 draw_set_vertex_buffers(draw, 0, num_vbuffers, NULL);
505 }
506