projects / mesa.git / blob
? search:


16bf90fc9d620ba13abc52c1630b063ebf0c211e
[mesa.git] / src / gallium / auxiliary / util / u_blitter.c
1 /**************************************************************************
2 *
3 * Copyright 2009 Marek Olšák <maraeo@gmail.com>
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 **************************************************************************/
26
27 /**
28 * @file
29 * Blitter utility to facilitate acceleration of the clear, clear_render_target,
30 * clear_depth_stencil, resource_copy_region, and blit functions.
31 *
32 * @author Marek Olšák
33 */
34
35 #include "pipe/p_context.h"
36 #include "pipe/p_defines.h"
37 #include "util/u_inlines.h"
38 #include "pipe/p_shader_tokens.h"
39 #include "pipe/p_state.h"
40
41 #include "util/u_format.h"
42 #include "util/u_memory.h"
43 #include "util/u_math.h"
44 #include "util/u_blitter.h"
45 #include "util/u_draw_quad.h"
46 #include "util/u_sampler.h"
47 #include "util/u_simple_shaders.h"
48 #include "util/u_surface.h"
49 #include "util/u_texture.h"
50 #include "util/u_upload_mgr.h"
51
52 #define INVALID_PTR ((void*)~0)
53
54 #define GET_CLEAR_BLEND_STATE_IDX(clear_buffers) \
55 ((clear_buffers) / PIPE_CLEAR_COLOR0)
56
57 #define NUM_RESOLVE_FRAG_SHADERS 5 /* MSAA 2x, 4x, 8x, 16x, 32x */
58 #define GET_MSAA_RESOLVE_FS_IDX(nr_samples) (util_logbase2(nr_samples)-1)
59
60 struct blitter_context_priv
61 {
62 struct blitter_context base;
63
64 struct u_upload_mgr *upload;
65
66 float vertices[4][2][4]; /**< {pos, color} or {pos, texcoord} */
67
68 /* Templates for various state objects. */
69
70 /* Constant state objects. */
71 /* Vertex shaders. */
72 void *vs; /**< Vertex shader which passes {pos, generic} to the output.*/
73 void *vs_pos_only; /**< Vertex shader which passes pos to the output.*/
74 void *vs_layered; /**< Vertex shader which sets LAYER = INSTANCEID. */
75
76 /* Fragment shaders. */
77 void *fs_empty;
78 void *fs_write_one_cbuf;
79 void *fs_write_all_cbufs;
80
81 /* FS which outputs a color from a texture,
82 where the index is PIPE_TEXTURE_* to be sampled. */
83 void *fs_texfetch_col[PIPE_MAX_TEXTURE_TYPES];
84
85 /* FS which outputs a depth from a texture,
86 where the index is PIPE_TEXTURE_* to be sampled. */
87 void *fs_texfetch_depth[PIPE_MAX_TEXTURE_TYPES];
88 void *fs_texfetch_depthstencil[PIPE_MAX_TEXTURE_TYPES];
89 void *fs_texfetch_stencil[PIPE_MAX_TEXTURE_TYPES];
90
91 /* FS which outputs one sample from a multisample texture. */
92 void *fs_texfetch_col_msaa[PIPE_MAX_TEXTURE_TYPES];
93 void *fs_texfetch_depth_msaa[PIPE_MAX_TEXTURE_TYPES];
94 void *fs_texfetch_depthstencil_msaa[PIPE_MAX_TEXTURE_TYPES];
95 void *fs_texfetch_stencil_msaa[PIPE_MAX_TEXTURE_TYPES];
96
97 /* FS which outputs an average of all samples. */
98 void *fs_resolve[PIPE_MAX_TEXTURE_TYPES][NUM_RESOLVE_FRAG_SHADERS][2];
99 void *fs_resolve_sint[PIPE_MAX_TEXTURE_TYPES][NUM_RESOLVE_FRAG_SHADERS][2];
100 void *fs_resolve_uint[PIPE_MAX_TEXTURE_TYPES][NUM_RESOLVE_FRAG_SHADERS][2];
101
102 /* Blend state. */
103 void *blend[PIPE_MASK_RGBA+1]; /**< blend state with writemask */
104 void *blend_clear[GET_CLEAR_BLEND_STATE_IDX(PIPE_CLEAR_COLOR)+1];
105
106 /* Depth stencil alpha state. */
107 void *dsa_write_depth_stencil;
108 void *dsa_write_depth_keep_stencil;
109 void *dsa_keep_depth_stencil;
110 void *dsa_keep_depth_write_stencil;
111
112 /* Vertex elements states. */
113 void *velem_state;
114 void *velem_state_readbuf[4]; /**< X, XY, XYZ, XYZW */
115
116 /* Sampler state. */
117 void *sampler_state;
118 void *sampler_state_linear;
119 void *sampler_state_rect;
120 void *sampler_state_rect_linear;
121
122 /* Rasterizer state. */
123 void *rs_state, *rs_state_scissor, *rs_discard_state;
124
125 /* Viewport state. */
126 struct pipe_viewport_state viewport;
127
128 /* Destination surface dimensions. */
129 unsigned dst_width;
130 unsigned dst_height;
131
132 boolean has_geometry_shader;
133 boolean has_tessellation;
134 boolean has_layered;
135 boolean has_stream_out;
136 boolean has_stencil_export;
137 boolean has_texture_multisample;
138 boolean cached_all_shaders;
139
140 /* The Draw module overrides these functions.
141 * Always create the blitter before Draw. */
142 void (*bind_fs_state)(struct pipe_context *, void *);
143 void (*delete_fs_state)(struct pipe_context *, void *);
144 };
145
146 static struct pipe_surface *
147 util_blitter_get_next_surface_layer(struct pipe_context *pipe,
148 struct pipe_surface *surf);
149
150 struct blitter_context *util_blitter_create(struct pipe_context *pipe)
151 {
152 struct blitter_context_priv *ctx;
153 struct pipe_blend_state blend;
154 struct pipe_depth_stencil_alpha_state dsa;
155 struct pipe_rasterizer_state rs_state;
156 struct pipe_sampler_state sampler_state;
157 struct pipe_vertex_element velem[2];
158 unsigned i;
159
160 ctx = CALLOC_STRUCT(blitter_context_priv);
161 if (!ctx)
162 return NULL;
163
164 ctx->base.pipe = pipe;
165 ctx->base.draw_rectangle = util_blitter_draw_rectangle;
166 ctx->base.get_next_surface_layer = util_blitter_get_next_surface_layer;
167
168 ctx->bind_fs_state = pipe->bind_fs_state;
169 ctx->delete_fs_state = pipe->delete_fs_state;
170
171 /* init state objects for them to be considered invalid */
172 ctx->base.saved_blend_state = INVALID_PTR;
173 ctx->base.saved_dsa_state = INVALID_PTR;
174 ctx->base.saved_rs_state = INVALID_PTR;
175 ctx->base.saved_fs = INVALID_PTR;
176 ctx->base.saved_vs = INVALID_PTR;
177 ctx->base.saved_gs = INVALID_PTR;
178 ctx->base.saved_velem_state = INVALID_PTR;
179 ctx->base.saved_fb_state.nr_cbufs = ~0;
180 ctx->base.saved_num_sampler_views = ~0;
181 ctx->base.saved_num_sampler_states = ~0;
182 ctx->base.saved_num_so_targets = ~0;
183
184 ctx->has_geometry_shader =
185 pipe->screen->get_shader_param(pipe->screen, PIPE_SHADER_GEOMETRY,
186 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0;
187
188 ctx->has_tessellation =
189 pipe->screen->get_shader_param(pipe->screen, PIPE_SHADER_TESS_CTRL,
190 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0;
191
192 ctx->has_stream_out =
193 pipe->screen->get_param(pipe->screen,
194 PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS) != 0;
195
196 ctx->has_stencil_export =
197 pipe->screen->get_param(pipe->screen,
198 PIPE_CAP_SHADER_STENCIL_EXPORT);
199
200 ctx->has_texture_multisample =
201 pipe->screen->get_param(pipe->screen, PIPE_CAP_TEXTURE_MULTISAMPLE);
202
203 /* blend state objects */
204 memset(&blend, 0, sizeof(blend));
205
206 for (i = 0; i <= PIPE_MASK_RGBA; i++) {
207 blend.rt[0].colormask = i;
208 ctx->blend[i] = pipe->create_blend_state(pipe, &blend);
209 }
210
211 /* depth stencil alpha state objects */
212 memset(&dsa, 0, sizeof(dsa));
213 ctx->dsa_keep_depth_stencil =
214 pipe->create_depth_stencil_alpha_state(pipe, &dsa);
215
216 dsa.depth.enabled = 1;
217 dsa.depth.writemask = 1;
218 dsa.depth.func = PIPE_FUNC_ALWAYS;
219 ctx->dsa_write_depth_keep_stencil =
220 pipe->create_depth_stencil_alpha_state(pipe, &dsa);
221
222 dsa.stencil[0].enabled = 1;
223 dsa.stencil[0].func = PIPE_FUNC_ALWAYS;
224 dsa.stencil[0].fail_op = PIPE_STENCIL_OP_REPLACE;
225 dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;
226 dsa.stencil[0].zfail_op = PIPE_STENCIL_OP_REPLACE;
227 dsa.stencil[0].valuemask = 0xff;
228 dsa.stencil[0].writemask = 0xff;
229 ctx->dsa_write_depth_stencil =
230 pipe->create_depth_stencil_alpha_state(pipe, &dsa);
231
232 dsa.depth.enabled = 0;
233 dsa.depth.writemask = 0;
234 ctx->dsa_keep_depth_write_stencil =
235 pipe->create_depth_stencil_alpha_state(pipe, &dsa);
236
237 /* sampler state */
238 memset(&sampler_state, 0, sizeof(sampler_state));
239 sampler_state.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
240 sampler_state.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
241 sampler_state.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
242 sampler_state.normalized_coords = 1;
243 ctx->sampler_state = pipe->create_sampler_state(pipe, &sampler_state);
244 sampler_state.normalized_coords = 0;
245 ctx->sampler_state_rect = pipe->create_sampler_state(pipe, &sampler_state);
246
247 sampler_state.min_img_filter = PIPE_TEX_FILTER_LINEAR;
248 sampler_state.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
249 sampler_state.normalized_coords = 1;
250 ctx->sampler_state_linear = pipe->create_sampler_state(pipe, &sampler_state);
251 sampler_state.normalized_coords = 0;
252 ctx->sampler_state_rect_linear = pipe->create_sampler_state(pipe, &sampler_state);
253
254 /* rasterizer state */
255 memset(&rs_state, 0, sizeof(rs_state));
256 rs_state.cull_face = PIPE_FACE_NONE;
257 rs_state.half_pixel_center = 1;
258 rs_state.bottom_edge_rule = 1;
259 rs_state.flatshade = 1;
260 rs_state.depth_clip = 1;
261 ctx->rs_state = pipe->create_rasterizer_state(pipe, &rs_state);
262
263 rs_state.scissor = 1;
264 ctx->rs_state_scissor = pipe->create_rasterizer_state(pipe, &rs_state);
265
266 if (ctx->has_stream_out) {
267 rs_state.scissor = 0;
268 rs_state.rasterizer_discard = 1;
269 ctx->rs_discard_state = pipe->create_rasterizer_state(pipe, &rs_state);
270 }
271
272 ctx->base.vb_slot = 0; /* 0 for now */
273
274 /* vertex elements states */
275 memset(&velem[0], 0, sizeof(velem[0]) * 2);
276 for (i = 0; i < 2; i++) {
277 velem[i].src_offset = i * 4 * sizeof(float);
278 velem[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
279 velem[i].vertex_buffer_index = ctx->base.vb_slot;
280 }
281 ctx->velem_state = pipe->create_vertex_elements_state(pipe, 2, &velem[0]);
282
283 if (ctx->has_stream_out) {
284 static enum pipe_format formats[4] = {
285 PIPE_FORMAT_R32_UINT,
286 PIPE_FORMAT_R32G32_UINT,
287 PIPE_FORMAT_R32G32B32_UINT,
288 PIPE_FORMAT_R32G32B32A32_UINT
289 };
290
291 for (i = 0; i < 4; i++) {
292 velem[0].src_format = formats[i];
293 velem[0].vertex_buffer_index = ctx->base.vb_slot;
294 ctx->velem_state_readbuf[i] =
295 pipe->create_vertex_elements_state(pipe, 1, &velem[0]);
296 }
297 }
298
299 ctx->has_layered =
300 pipe->screen->get_param(pipe->screen, PIPE_CAP_TGSI_INSTANCEID) &&
301 pipe->screen->get_param(pipe->screen, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT);
302
303 /* set invariant vertex coordinates */
304 for (i = 0; i < 4; i++)
305 ctx->vertices[i][0][3] = 1; /*v.w*/
306
307 ctx->upload = u_upload_create(pipe, 65536, 4, PIPE_BIND_VERTEX_BUFFER);
308
309 return &ctx->base;
310 }
311
312 static void bind_vs_pos_only(struct blitter_context_priv *ctx)
313 {
314 struct pipe_context *pipe = ctx->base.pipe;
315
316 if (!ctx->vs_pos_only) {
317 struct pipe_stream_output_info so;
318 const uint semantic_names[] = { TGSI_SEMANTIC_POSITION };
319 const uint semantic_indices[] = { 0 };
320
321 memset(&so, 0, sizeof(so));
322 so.num_outputs = 1;
323 so.output[0].num_components = 1;
324 so.stride[0] = 1;
325
326 ctx->vs_pos_only =
327 util_make_vertex_passthrough_shader_with_so(pipe, 1, semantic_names,
328 semantic_indices, FALSE,
329 &so);
330 }
331
332 pipe->bind_vs_state(pipe, ctx->vs_pos_only);
333 }
334
335 static void bind_vs_passthrough(struct blitter_context_priv *ctx)
336 {
337 struct pipe_context *pipe = ctx->base.pipe;
338
339 if (!ctx->vs) {
340 const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
341 TGSI_SEMANTIC_GENERIC };
342 const uint semantic_indices[] = { 0, 0 };
343 ctx->vs =
344 util_make_vertex_passthrough_shader(pipe, 2, semantic_names,
345 semantic_indices, FALSE);
346 }
347
348 pipe->bind_vs_state(pipe, ctx->vs);
349 }
350
351 static void bind_vs_layered(struct blitter_context_priv *ctx)
352 {
353 struct pipe_context *pipe = ctx->base.pipe;
354
355 if (!ctx->vs_layered) {
356 ctx->vs_layered = util_make_layered_clear_vertex_shader(pipe);
357 }
358
359 pipe->bind_vs_state(pipe, ctx->vs_layered);
360 }
361
362 static void bind_fs_empty(struct blitter_context_priv *ctx)
363 {
364 struct pipe_context *pipe = ctx->base.pipe;
365
366 if (!ctx->fs_empty) {
367 assert(!ctx->cached_all_shaders);
368 ctx->fs_empty = util_make_empty_fragment_shader(pipe);
369 }
370
371 ctx->bind_fs_state(pipe, ctx->fs_empty);
372 }
373
374 static void bind_fs_write_one_cbuf(struct blitter_context_priv *ctx)
375 {
376 struct pipe_context *pipe = ctx->base.pipe;
377
378 if (!ctx->fs_write_one_cbuf) {
379 assert(!ctx->cached_all_shaders);
380 ctx->fs_write_one_cbuf =
381 util_make_fragment_passthrough_shader(pipe, TGSI_SEMANTIC_GENERIC,
382 TGSI_INTERPOLATE_CONSTANT, FALSE);
383 }
384
385 ctx->bind_fs_state(pipe, ctx->fs_write_one_cbuf);
386 }
387
388 static void bind_fs_write_all_cbufs(struct blitter_context_priv *ctx)
389 {
390 struct pipe_context *pipe = ctx->base.pipe;
391
392 if (!ctx->fs_write_all_cbufs) {
393 assert(!ctx->cached_all_shaders);
394 ctx->fs_write_all_cbufs =
395 util_make_fragment_passthrough_shader(pipe, TGSI_SEMANTIC_GENERIC,
396 TGSI_INTERPOLATE_CONSTANT, TRUE);
397 }
398
399 ctx->bind_fs_state(pipe, ctx->fs_write_all_cbufs);
400 }
401
402 void util_blitter_destroy(struct blitter_context *blitter)
403 {
404 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
405 struct pipe_context *pipe = blitter->pipe;
406 int i, j, f;
407
408 for (i = 0; i <= PIPE_MASK_RGBA; i++) {
409 pipe->delete_blend_state(pipe, ctx->blend[i]);
410 }
411 for (i = 0; i < Elements(ctx->blend_clear); i++) {
412 if (ctx->blend_clear[i])
413 pipe->delete_blend_state(pipe, ctx->blend_clear[i]);
414 }
415 pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
416 pipe->delete_depth_stencil_alpha_state(pipe,
417 ctx->dsa_write_depth_keep_stencil);
418 pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_stencil);
419 pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil);
420
421 pipe->delete_rasterizer_state(pipe, ctx->rs_state);
422 pipe->delete_rasterizer_state(pipe, ctx->rs_state_scissor);
423 if (ctx->rs_discard_state)
424 pipe->delete_rasterizer_state(pipe, ctx->rs_discard_state);
425 if (ctx->vs)
426 pipe->delete_vs_state(pipe, ctx->vs);
427 if (ctx->vs_pos_only)
428 pipe->delete_vs_state(pipe, ctx->vs_pos_only);
429 if (ctx->vs_layered)
430 pipe->delete_vs_state(pipe, ctx->vs_layered);
431 pipe->delete_vertex_elements_state(pipe, ctx->velem_state);
432 for (i = 0; i < 4; i++) {
433 if (ctx->velem_state_readbuf[i]) {
434 pipe->delete_vertex_elements_state(pipe, ctx->velem_state_readbuf[i]);
435 }
436 }
437
438 for (i = 0; i < PIPE_MAX_TEXTURE_TYPES; i++) {
439 if (ctx->fs_texfetch_col[i])
440 ctx->delete_fs_state(pipe, ctx->fs_texfetch_col[i]);
441 if (ctx->fs_texfetch_depth[i])
442 ctx->delete_fs_state(pipe, ctx->fs_texfetch_depth[i]);
443 if (ctx->fs_texfetch_depthstencil[i])
444 ctx->delete_fs_state(pipe, ctx->fs_texfetch_depthstencil[i]);
445 if (ctx->fs_texfetch_stencil[i])
446 ctx->delete_fs_state(pipe, ctx->fs_texfetch_stencil[i]);
447
448 if (ctx->fs_texfetch_col_msaa[i])
449 ctx->delete_fs_state(pipe, ctx->fs_texfetch_col_msaa[i]);
450 if (ctx->fs_texfetch_depth_msaa[i])
451 ctx->delete_fs_state(pipe, ctx->fs_texfetch_depth_msaa[i]);
452 if (ctx->fs_texfetch_depthstencil_msaa[i])
453 ctx->delete_fs_state(pipe, ctx->fs_texfetch_depthstencil_msaa[i]);
454 if (ctx->fs_texfetch_stencil_msaa[i])
455 ctx->delete_fs_state(pipe, ctx->fs_texfetch_stencil_msaa[i]);
456
457 for (j = 0; j< Elements(ctx->fs_resolve[i]); j++)
458 for (f = 0; f < 2; f++)
459 if (ctx->fs_resolve[i][j][f])
460 ctx->delete_fs_state(pipe, ctx->fs_resolve[i][j][f]);
461
462 for (j = 0; j< Elements(ctx->fs_resolve_sint[i]); j++)
463 for (f = 0; f < 2; f++)
464 if (ctx->fs_resolve_sint[i][j][f])
465 ctx->delete_fs_state(pipe, ctx->fs_resolve_sint[i][j][f]);
466
467 for (j = 0; j< Elements(ctx->fs_resolve_uint[i]); j++)
468 for (f = 0; f < 2; f++)
469 if (ctx->fs_resolve_uint[i][j][f])
470 ctx->delete_fs_state(pipe, ctx->fs_resolve_uint[i][j][f]);
471 }
472
473 if (ctx->fs_empty)
474 ctx->delete_fs_state(pipe, ctx->fs_empty);
475 if (ctx->fs_write_one_cbuf)
476 ctx->delete_fs_state(pipe, ctx->fs_write_one_cbuf);
477 if (ctx->fs_write_all_cbufs)
478 ctx->delete_fs_state(pipe, ctx->fs_write_all_cbufs);
479
480 pipe->delete_sampler_state(pipe, ctx->sampler_state_rect_linear);
481 pipe->delete_sampler_state(pipe, ctx->sampler_state_rect);
482 pipe->delete_sampler_state(pipe, ctx->sampler_state_linear);
483 pipe->delete_sampler_state(pipe, ctx->sampler_state);
484 u_upload_destroy(ctx->upload);
485 FREE(ctx);
486 }
487
488 void util_blitter_set_texture_multisample(struct blitter_context *blitter,
489 boolean supported)
490 {
491 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
492
493 ctx->has_texture_multisample = supported;
494 }
495
496 static void blitter_set_running_flag(struct blitter_context_priv *ctx)
497 {
498 if (ctx->base.running) {
499 _debug_printf("u_blitter:%i: Caught recursion. This is a driver bug.\n",
500 __LINE__);
501 }
502 ctx->base.running = TRUE;
503 }
504
505 static void blitter_unset_running_flag(struct blitter_context_priv *ctx)
506 {
507 if (!ctx->base.running) {
508 _debug_printf("u_blitter:%i: Caught recursion. This is a driver bug.\n",
509 __LINE__);
510 }
511 ctx->base.running = FALSE;
512 }
513
514 static void blitter_check_saved_vertex_states(struct blitter_context_priv *ctx)
515 {
516 assert(ctx->base.saved_velem_state != INVALID_PTR);
517 assert(ctx->base.saved_vs != INVALID_PTR);
518 assert(!ctx->has_geometry_shader || ctx->base.saved_gs != INVALID_PTR);
519 assert(!ctx->has_tessellation || ctx->base.saved_tcs != INVALID_PTR);
520 assert(!ctx->has_tessellation || ctx->base.saved_tes != INVALID_PTR);
521 assert(!ctx->has_stream_out || ctx->base.saved_num_so_targets != ~0);
522 assert(ctx->base.saved_rs_state != INVALID_PTR);
523 }
524
525 static void blitter_restore_vertex_states(struct blitter_context_priv *ctx)
526 {
527 struct pipe_context *pipe = ctx->base.pipe;
528 unsigned i;
529
530 /* Vertex buffer. */
531 pipe->set_vertex_buffers(pipe, ctx->base.vb_slot, 1,
532 &ctx->base.saved_vertex_buffer);
533 pipe_resource_reference(&ctx->base.saved_vertex_buffer.buffer, NULL);
534
535 /* Vertex elements. */
536 pipe->bind_vertex_elements_state(pipe, ctx->base.saved_velem_state);
537 ctx->base.saved_velem_state = INVALID_PTR;
538
539 /* Vertex shader. */
540 pipe->bind_vs_state(pipe, ctx->base.saved_vs);
541 ctx->base.saved_vs = INVALID_PTR;
542
543 /* Geometry shader. */
544 if (ctx->has_geometry_shader) {
545 pipe->bind_gs_state(pipe, ctx->base.saved_gs);
546 ctx->base.saved_gs = INVALID_PTR;
547 }
548
549 if (ctx->has_tessellation) {
550 pipe->bind_tcs_state(pipe, ctx->base.saved_tcs);
551 pipe->bind_tes_state(pipe, ctx->base.saved_tes);
552 ctx->base.saved_tcs = INVALID_PTR;
553 ctx->base.saved_tes = INVALID_PTR;
554 }
555
556 /* Stream outputs. */
557 if (ctx->has_stream_out) {
558 unsigned offsets[PIPE_MAX_SO_BUFFERS];
559 for (i = 0; i < ctx->base.saved_num_so_targets; i++)
560 offsets[i] = (unsigned)-1;
561 pipe->set_stream_output_targets(pipe,
562 ctx->base.saved_num_so_targets,
563 ctx->base.saved_so_targets, offsets);
564
565 for (i = 0; i < ctx->base.saved_num_so_targets; i++)
566 pipe_so_target_reference(&ctx->base.saved_so_targets[i], NULL);
567
568 ctx->base.saved_num_so_targets = ~0;
569 }
570
571 /* Rasterizer. */
572 pipe->bind_rasterizer_state(pipe, ctx->base.saved_rs_state);
573 ctx->base.saved_rs_state = INVALID_PTR;
574 }
575
576 static void blitter_check_saved_fragment_states(struct blitter_context_priv *ctx)
577 {
578 assert(ctx->base.saved_fs != INVALID_PTR);
579 assert(ctx->base.saved_dsa_state != INVALID_PTR);
580 assert(ctx->base.saved_blend_state != INVALID_PTR);
581 }
582
583 static void blitter_restore_fragment_states(struct blitter_context_priv *ctx)
584 {
585 struct pipe_context *pipe = ctx->base.pipe;
586
587 /* Fragment shader. */
588 ctx->bind_fs_state(pipe, ctx->base.saved_fs);
589 ctx->base.saved_fs = INVALID_PTR;
590
591 /* Depth, stencil, alpha. */
592 pipe->bind_depth_stencil_alpha_state(pipe, ctx->base.saved_dsa_state);
593 ctx->base.saved_dsa_state = INVALID_PTR;
594
595 /* Blend state. */
596 pipe->bind_blend_state(pipe, ctx->base.saved_blend_state);
597 ctx->base.saved_blend_state = INVALID_PTR;
598
599 /* Sample mask. */
600 if (ctx->base.is_sample_mask_saved) {
601 pipe->set_sample_mask(pipe, ctx->base.saved_sample_mask);
602 ctx->base.is_sample_mask_saved = FALSE;
603 }
604
605 /* Miscellaneous states. */
606 /* XXX check whether these are saved and whether they need to be restored
607 * (depending on the operation) */
608 pipe->set_stencil_ref(pipe, &ctx->base.saved_stencil_ref);
609 pipe->set_viewport_states(pipe, 0, 1, &ctx->base.saved_viewport);
610 }
611
612 static void blitter_check_saved_fb_state(struct blitter_context_priv *ctx)
613 {
614 assert(ctx->base.saved_fb_state.nr_cbufs != ~0);
615 }
616
617 static void blitter_disable_render_cond(struct blitter_context_priv *ctx)
618 {
619 struct pipe_context *pipe = ctx->base.pipe;
620
621 if (ctx->base.saved_render_cond_query) {
622 pipe->render_condition(pipe, NULL, FALSE, 0);
623 }
624 }
625
626 static void blitter_restore_render_cond(struct blitter_context_priv *ctx)
627 {
628 struct pipe_context *pipe = ctx->base.pipe;
629
630 if (ctx->base.saved_render_cond_query) {
631 pipe->render_condition(pipe, ctx->base.saved_render_cond_query,
632 ctx->base.saved_render_cond_cond,
633 ctx->base.saved_render_cond_mode);
634 ctx->base.saved_render_cond_query = NULL;
635 }
636 }
637
638 static void blitter_restore_fb_state(struct blitter_context_priv *ctx)
639 {
640 struct pipe_context *pipe = ctx->base.pipe;
641
642 pipe->set_framebuffer_state(pipe, &ctx->base.saved_fb_state);
643 util_unreference_framebuffer_state(&ctx->base.saved_fb_state);
644 }
645
646 static void blitter_check_saved_textures(struct blitter_context_priv *ctx)
647 {
648 assert(ctx->base.saved_num_sampler_states != ~0);
649 assert(ctx->base.saved_num_sampler_views != ~0);
650 }
651
652 static void blitter_restore_textures(struct blitter_context_priv *ctx)
653 {
654 struct pipe_context *pipe = ctx->base.pipe;
655 unsigned i;
656
657 /* Fragment sampler states. */
658 pipe->bind_sampler_states(pipe, PIPE_SHADER_FRAGMENT, 0,
659 ctx->base.saved_num_sampler_states,
660 ctx->base.saved_sampler_states);
661
662 ctx->base.saved_num_sampler_states = ~0;
663
664 /* Fragment sampler views. */
665 pipe->set_sampler_views(pipe, PIPE_SHADER_FRAGMENT, 0,
666 ctx->base.saved_num_sampler_views,
667 ctx->base.saved_sampler_views);
668
669 for (i = 0; i < ctx->base.saved_num_sampler_views; i++)
670 pipe_sampler_view_reference(&ctx->base.saved_sampler_views[i], NULL);
671
672 ctx->base.saved_num_sampler_views = ~0;
673 }
674
675 static void blitter_set_rectangle(struct blitter_context_priv *ctx,
676 int x1, int y1, int x2, int y2,
677 float depth)
678 {
679 int i;
680
681 /* set vertex positions */
682 ctx->vertices[0][0][0] = (float)x1 / ctx->dst_width * 2.0f - 1.0f; /*v0.x*/
683 ctx->vertices[0][0][1] = (float)y1 / ctx->dst_height * 2.0f - 1.0f; /*v0.y*/
684
685 ctx->vertices[1][0][0] = (float)x2 / ctx->dst_width * 2.0f - 1.0f; /*v1.x*/
686 ctx->vertices[1][0][1] = (float)y1 / ctx->dst_height * 2.0f - 1.0f; /*v1.y*/
687
688 ctx->vertices[2][0][0] = (float)x2 / ctx->dst_width * 2.0f - 1.0f; /*v2.x*/
689 ctx->vertices[2][0][1] = (float)y2 / ctx->dst_height * 2.0f - 1.0f; /*v2.y*/
690
691 ctx->vertices[3][0][0] = (float)x1 / ctx->dst_width * 2.0f - 1.0f; /*v3.x*/
692 ctx->vertices[3][0][1] = (float)y2 / ctx->dst_height * 2.0f - 1.0f; /*v3.y*/
693
694 for (i = 0; i < 4; i++)
695 ctx->vertices[i][0][2] = depth; /*z*/
696
697 /* viewport */
698 ctx->viewport.scale[0] = 0.5f * ctx->dst_width;
699 ctx->viewport.scale[1] = 0.5f * ctx->dst_height;
700 ctx->viewport.scale[2] = 1.0f;
701 ctx->viewport.translate[0] = 0.5f * ctx->dst_width;
702 ctx->viewport.translate[1] = 0.5f * ctx->dst_height;
703 ctx->viewport.translate[2] = 0.0f;
704 ctx->base.pipe->set_viewport_states(ctx->base.pipe, 0, 1, &ctx->viewport);
705 }
706
707 static void blitter_set_clear_color(struct blitter_context_priv *ctx,
708 const union pipe_color_union *color)
709 {
710 int i;
711
712 if (color) {
713 for (i = 0; i < 4; i++) {
714 uint32_t *uiverts = (uint32_t *)ctx->vertices[i][1];
715 uiverts[0] = color->ui[0];
716 uiverts[1] = color->ui[1];
717 uiverts[2] = color->ui[2];
718 uiverts[3] = color->ui[3];
719 }
720 } else {
721 for (i = 0; i < 4; i++) {
722 ctx->vertices[i][1][0] = 0;
723 ctx->vertices[i][1][1] = 0;
724 ctx->vertices[i][1][2] = 0;
725 ctx->vertices[i][1][3] = 0;
726 }
727 }
728 }
729
730 static void get_texcoords(struct pipe_sampler_view *src,
731 unsigned src_width0, unsigned src_height0,
732 int x1, int y1, int x2, int y2,
733 float out[4])
734 {
735 struct pipe_resource *tex = src->texture;
736 unsigned level = src->u.tex.first_level;
737 boolean normalized = tex->target != PIPE_TEXTURE_RECT &&
738 tex->nr_samples <= 1;
739
740 if (normalized) {
741 out[0] = x1 / (float)u_minify(src_width0, level);
742 out[1] = y1 / (float)u_minify(src_height0, level);
743 out[2] = x2 / (float)u_minify(src_width0, level);
744 out[3] = y2 / (float)u_minify(src_height0, level);
745 } else {
746 out[0] = (float) x1;
747 out[1] = (float) y1;
748 out[2] = (float) x2;
749 out[3] = (float) y2;
750 }
751 }
752
753 static void set_texcoords_in_vertices(const float coord[4],
754 float *out, unsigned stride)
755 {
756 out[0] = coord[0]; /*t0.s*/
757 out[1] = coord[1]; /*t0.t*/
758 out += stride;
759 out[0] = coord[2]; /*t1.s*/
760 out[1] = coord[1]; /*t1.t*/
761 out += stride;
762 out[0] = coord[2]; /*t2.s*/
763 out[1] = coord[3]; /*t2.t*/
764 out += stride;
765 out[0] = coord[0]; /*t3.s*/
766 out[1] = coord[3]; /*t3.t*/
767 }
768
769 static void blitter_set_texcoords(struct blitter_context_priv *ctx,
770 struct pipe_sampler_view *src,
771 unsigned src_width0, unsigned src_height0,
772 float layer, unsigned sample,
773 int x1, int y1, int x2, int y2)
774 {
775 unsigned i;
776 float coord[4];
777 float face_coord[4][2];
778
779 get_texcoords(src, src_width0, src_height0, x1, y1, x2, y2, coord);
780
781 if (src->texture->target == PIPE_TEXTURE_CUBE ||
782 src->texture->target == PIPE_TEXTURE_CUBE_ARRAY) {
783 set_texcoords_in_vertices(coord, &face_coord[0][0], 2);
784 util_map_texcoords2d_onto_cubemap((unsigned)layer % 6,
785 /* pointer, stride in floats */
786 &face_coord[0][0], 2,
787 &ctx->vertices[0][1][0], 8,
788 FALSE);
789 } else {
790 set_texcoords_in_vertices(coord, &ctx->vertices[0][1][0], 8);
791 }
792
793 /* Set the layer. */
794 switch (src->texture->target) {
795 case PIPE_TEXTURE_3D:
796 {
797 float r = layer / (float)u_minify(src->texture->depth0,
798 src->u.tex.first_level);
799 for (i = 0; i < 4; i++)
800 ctx->vertices[i][1][2] = r; /*r*/
801 }
802 break;
803
804 case PIPE_TEXTURE_1D_ARRAY:
805 for (i = 0; i < 4; i++)
806 ctx->vertices[i][1][1] = (float) layer; /*t*/
807 break;
808
809 case PIPE_TEXTURE_2D_ARRAY:
810 for (i = 0; i < 4; i++) {
811 ctx->vertices[i][1][2] = (float) layer; /*r*/
812 ctx->vertices[i][1][3] = (float) sample; /*q*/
813 }
814 break;
815
816 case PIPE_TEXTURE_CUBE_ARRAY:
817 for (i = 0; i < 4; i++)
818 ctx->vertices[i][1][3] = (float) ((unsigned)layer / 6); /*w*/
819 break;
820
821 case PIPE_TEXTURE_2D:
822 for (i = 0; i < 4; i++) {
823 ctx->vertices[i][1][3] = (float) sample; /*r*/
824 }
825 break;
826
827 default:;
828 }
829 }
830
831 static void blitter_set_dst_dimensions(struct blitter_context_priv *ctx,
832 unsigned width, unsigned height)
833 {
834 ctx->dst_width = width;
835 ctx->dst_height = height;
836 }
837
838 static void *blitter_get_fs_texfetch_col(struct blitter_context_priv *ctx,
839 enum pipe_format format,
840 enum pipe_texture_target target,
841 unsigned src_nr_samples,
842 unsigned dst_nr_samples,
843 unsigned filter)
844 {
845 struct pipe_context *pipe = ctx->base.pipe;
846 unsigned tgsi_tex = util_pipe_tex_to_tgsi_tex(target, src_nr_samples);
847
848 assert(target < PIPE_MAX_TEXTURE_TYPES);
849
850 if (src_nr_samples > 1) {
851 void **shader;
852
853 if (dst_nr_samples <= 1) {
854 /* The destination has one sample, so we'll do color resolve. */
855 boolean is_uint, is_sint;
856 unsigned index = GET_MSAA_RESOLVE_FS_IDX(src_nr_samples);
857
858 is_uint = util_format_is_pure_uint(format);
859 is_sint = util_format_is_pure_sint(format);
860
861 assert(filter < 2);
862
863 if (is_uint)
864 shader = &ctx->fs_resolve_uint[target][index][filter];
865 else if (is_sint)
866 shader = &ctx->fs_resolve_sint[target][index][filter];
867 else
868 shader = &ctx->fs_resolve[target][index][filter];
869
870 if (!*shader) {
871 assert(!ctx->cached_all_shaders);
872 if (filter == PIPE_TEX_FILTER_LINEAR) {
873 *shader = util_make_fs_msaa_resolve_bilinear(pipe, tgsi_tex,
874 src_nr_samples,
875 is_uint, is_sint);
876 }
877 else {
878 *shader = util_make_fs_msaa_resolve(pipe, tgsi_tex,
879 src_nr_samples,
880 is_uint, is_sint);
881 }
882 }
883 }
884 else {
885 /* The destination has multiple samples, we'll do
886 * an MSAA->MSAA copy.
887 */
888 shader = &ctx->fs_texfetch_col_msaa[target];
889
890 /* Create the fragment shader on-demand. */
891 if (!*shader) {
892 assert(!ctx->cached_all_shaders);
893 *shader = util_make_fs_blit_msaa_color(pipe, tgsi_tex);
894 }
895 }
896
897 return *shader;
898 } else {
899 void **shader = &ctx->fs_texfetch_col[target];
900
901 /* Create the fragment shader on-demand. */
902 if (!*shader) {
903 assert(!ctx->cached_all_shaders);
904 *shader = util_make_fragment_tex_shader(pipe, tgsi_tex,
905 TGSI_INTERPOLATE_LINEAR);
906 }
907
908 return *shader;
909 }
910 }
911
912 static INLINE
913 void *blitter_get_fs_texfetch_depth(struct blitter_context_priv *ctx,
914 enum pipe_texture_target target,
915 unsigned nr_samples)
916 {
917 struct pipe_context *pipe = ctx->base.pipe;
918
919 assert(target < PIPE_MAX_TEXTURE_TYPES);
920
921 if (nr_samples > 1) {
922 void **shader = &ctx->fs_texfetch_depth_msaa[target];
923
924 /* Create the fragment shader on-demand. */
925 if (!*shader) {
926 unsigned tgsi_tex;
927 assert(!ctx->cached_all_shaders);
928 tgsi_tex = util_pipe_tex_to_tgsi_tex(target, nr_samples);
929 *shader = util_make_fs_blit_msaa_depth(pipe, tgsi_tex);
930 }
931
932 return *shader;
933 } else {
934 void **shader = &ctx->fs_texfetch_depth[target];
935
936 /* Create the fragment shader on-demand. */
937 if (!*shader) {
938 unsigned tgsi_tex;
939 assert(!ctx->cached_all_shaders);
940 tgsi_tex = util_pipe_tex_to_tgsi_tex(target, 0);
941 *shader =
942 util_make_fragment_tex_shader_writedepth(pipe, tgsi_tex,
943 TGSI_INTERPOLATE_LINEAR);
944 }
945
946 return *shader;
947 }
948 }
949
950 static INLINE
951 void *blitter_get_fs_texfetch_depthstencil(struct blitter_context_priv *ctx,
952 enum pipe_texture_target target,
953 unsigned nr_samples)
954 {
955 struct pipe_context *pipe = ctx->base.pipe;
956
957 assert(target < PIPE_MAX_TEXTURE_TYPES);
958
959 if (nr_samples > 1) {
960 void **shader = &ctx->fs_texfetch_depthstencil_msaa[target];
961
962 /* Create the fragment shader on-demand. */
963 if (!*shader) {
964 unsigned tgsi_tex;
965 assert(!ctx->cached_all_shaders);
966 tgsi_tex = util_pipe_tex_to_tgsi_tex(target, nr_samples);
967 *shader = util_make_fs_blit_msaa_depthstencil(pipe, tgsi_tex);
968 }
969
970 return *shader;
971 } else {
972 void **shader = &ctx->fs_texfetch_depthstencil[target];
973
974 /* Create the fragment shader on-demand. */
975 if (!*shader) {
976 unsigned tgsi_tex;
977 assert(!ctx->cached_all_shaders);
978 tgsi_tex = util_pipe_tex_to_tgsi_tex(target, 0);
979 *shader =
980 util_make_fragment_tex_shader_writedepthstencil(pipe, tgsi_tex,
981 TGSI_INTERPOLATE_LINEAR);
982 }
983
984 return *shader;
985 }
986 }
987
988 static INLINE
989 void *blitter_get_fs_texfetch_stencil(struct blitter_context_priv *ctx,
990 enum pipe_texture_target target,
991 unsigned nr_samples)
992 {
993 struct pipe_context *pipe = ctx->base.pipe;
994
995 assert(target < PIPE_MAX_TEXTURE_TYPES);
996
997 if (nr_samples > 1) {
998 void **shader = &ctx->fs_texfetch_stencil_msaa[target];
999
1000 /* Create the fragment shader on-demand. */
1001 if (!*shader) {
1002 unsigned tgsi_tex;
1003 assert(!ctx->cached_all_shaders);
1004 tgsi_tex = util_pipe_tex_to_tgsi_tex(target, nr_samples);
1005 *shader = util_make_fs_blit_msaa_stencil(pipe, tgsi_tex);
1006 }
1007
1008 return *shader;
1009 } else {
1010 void **shader = &ctx->fs_texfetch_stencil[target];
1011
1012 /* Create the fragment shader on-demand. */
1013 if (!*shader) {
1014 unsigned tgsi_tex;
1015 assert(!ctx->cached_all_shaders);
1016 tgsi_tex = util_pipe_tex_to_tgsi_tex(target, 0);
1017 *shader =
1018 util_make_fragment_tex_shader_writestencil(pipe, tgsi_tex,
1019 TGSI_INTERPOLATE_LINEAR);
1020 }
1021
1022 return *shader;
1023 }
1024 }
1025
1026
1027 /**
1028 * Generate and save all fragment shaders that we will ever need for
1029 * blitting. Drivers which use the 'draw' fallbacks will typically use
1030 * this to make sure we generate/use shaders that don't go through the
1031 * draw module's wrapper functions.
1032 */
1033 void util_blitter_cache_all_shaders(struct blitter_context *blitter)
1034 {
1035 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
1036 struct pipe_context *pipe = blitter->pipe;
1037 struct pipe_screen *screen = pipe->screen;
1038 unsigned samples, j, f, target, max_samples;
1039 boolean has_arraytex, has_cubearraytex;
1040
1041 max_samples = ctx->has_texture_multisample ? 2 : 1;
1042 has_arraytex = screen->get_param(screen,
1043 PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS) != 0;
1044 has_cubearraytex = screen->get_param(screen,
1045 PIPE_CAP_CUBE_MAP_ARRAY) != 0;
1046
1047 /* It only matters if i <= 1 or > 1. */
1048 for (samples = 1; samples <= max_samples; samples++) {
1049 for (target = PIPE_TEXTURE_1D; target < PIPE_MAX_TEXTURE_TYPES; target++) {
1050 if (!has_arraytex &&
1051 (target == PIPE_TEXTURE_1D_ARRAY ||
1052 target == PIPE_TEXTURE_2D_ARRAY)) {
1053 continue;
1054 }
1055 if (!has_cubearraytex &&
1056 (target == PIPE_TEXTURE_CUBE_ARRAY))
1057 continue;
1058
1059 if (samples > 1 &&
1060 (target != PIPE_TEXTURE_2D &&
1061 target != PIPE_TEXTURE_2D_ARRAY))
1062 continue;
1063
1064 /* If samples == 1, the shaders read one texel. If samples >= 1,
1065 * they read one sample.
1066 */
1067 blitter_get_fs_texfetch_col(ctx, PIPE_FORMAT_R32_FLOAT, target,
1068 samples, samples, 0);
1069 blitter_get_fs_texfetch_depth(ctx, target, samples);
1070 if (ctx->has_stencil_export) {
1071 blitter_get_fs_texfetch_depthstencil(ctx, target, samples);
1072 blitter_get_fs_texfetch_stencil(ctx, target, samples);
1073 }
1074
1075 if (samples == 1)
1076 continue;
1077
1078 /* MSAA resolve shaders. */
1079 for (j = 2; j < 32; j++) {
1080 if (!screen->is_format_supported(screen, PIPE_FORMAT_R32_FLOAT,
1081 target, j,
1082 PIPE_BIND_SAMPLER_VIEW)) {
1083 continue;
1084 }
1085
1086 for (f = 0; f < 2; f++) {
1087 blitter_get_fs_texfetch_col(ctx, PIPE_FORMAT_R32_FLOAT, target,
1088 j, 1, f);
1089 blitter_get_fs_texfetch_col(ctx, PIPE_FORMAT_R32_UINT, target,
1090 j, 1, f);
1091 blitter_get_fs_texfetch_col(ctx, PIPE_FORMAT_R32_SINT, target,
1092 j, 1, f);
1093 }
1094 }
1095 }
1096 }
1097
1098 ctx->fs_empty = util_make_empty_fragment_shader(pipe);
1099
1100 ctx->fs_write_one_cbuf =
1101 util_make_fragment_passthrough_shader(pipe, TGSI_SEMANTIC_GENERIC,
1102 TGSI_INTERPOLATE_CONSTANT, FALSE);
1103
1104 ctx->fs_write_all_cbufs =
1105 util_make_fragment_passthrough_shader(pipe, TGSI_SEMANTIC_GENERIC,
1106 TGSI_INTERPOLATE_CONSTANT, TRUE);
1107
1108 ctx->cached_all_shaders = TRUE;
1109 }
1110
1111 static void blitter_set_common_draw_rect_state(struct blitter_context_priv *ctx,
1112 boolean scissor,
1113 boolean vs_layered)
1114 {
1115 struct pipe_context *pipe = ctx->base.pipe;
1116
1117 pipe->bind_rasterizer_state(pipe, scissor ? ctx->rs_state_scissor
1118 : ctx->rs_state);
1119 if (vs_layered)
1120 bind_vs_layered(ctx);
1121 else
1122 bind_vs_passthrough(ctx);
1123
1124 if (ctx->has_geometry_shader)
1125 pipe->bind_gs_state(pipe, NULL);
1126 if (ctx->has_tessellation) {
1127 pipe->bind_tcs_state(pipe, NULL);
1128 pipe->bind_tes_state(pipe, NULL);
1129 }
1130 if (ctx->has_stream_out)
1131 pipe->set_stream_output_targets(pipe, 0, NULL, NULL);
1132 }
1133
1134 static void blitter_draw(struct blitter_context_priv *ctx,
1135 int x1, int y1, int x2, int y2, float depth,
1136 unsigned num_instances)
1137 {
1138 struct pipe_context *pipe = ctx->base.pipe;
1139 struct pipe_vertex_buffer vb = {0};
1140
1141 blitter_set_rectangle(ctx, x1, y1, x2, y2, depth);
1142
1143 vb.stride = 8 * sizeof(float);
1144
1145 u_upload_data(ctx->upload, 0, sizeof(ctx->vertices), ctx->vertices,
1146 &vb.buffer_offset, &vb.buffer);
1147 u_upload_unmap(ctx->upload);
1148
1149 pipe->set_vertex_buffers(pipe, ctx->base.vb_slot, 1, &vb);
1150 util_draw_arrays_instanced(pipe, PIPE_PRIM_TRIANGLE_FAN, 0, 4,
1151 0, num_instances);
1152 pipe_resource_reference(&vb.buffer, NULL);
1153 }
1154
1155 void util_blitter_draw_rectangle(struct blitter_context *blitter,
1156 int x1, int y1, int x2, int y2, float depth,
1157 enum blitter_attrib_type type,
1158 const union pipe_color_union *attrib)
1159 {
1160 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
1161
1162 switch (type) {
1163 case UTIL_BLITTER_ATTRIB_COLOR:
1164 blitter_set_clear_color(ctx, attrib);
1165 break;
1166
1167 case UTIL_BLITTER_ATTRIB_TEXCOORD:
1168 set_texcoords_in_vertices(attrib->f, &ctx->vertices[0][1][0], 8);
1169 break;
1170
1171 default:;
1172 }
1173
1174 blitter_draw(ctx, x1, y1, x2, y2, depth, 1);
1175 }
1176
1177 static void *get_clear_blend_state(struct blitter_context_priv *ctx,
1178 unsigned clear_buffers)
1179 {
1180 struct pipe_context *pipe = ctx->base.pipe;
1181 int index;
1182
1183 clear_buffers &= PIPE_CLEAR_COLOR;
1184
1185 /* Return an existing blend state. */
1186 if (!clear_buffers)
1187 return ctx->blend[0];
1188
1189 index = GET_CLEAR_BLEND_STATE_IDX(clear_buffers);
1190
1191 if (ctx->blend_clear[index])
1192 return ctx->blend_clear[index];
1193
1194 /* Create a new one. */
1195 {
1196 struct pipe_blend_state blend = {0};
1197 unsigned i;
1198
1199 blend.independent_blend_enable = 1;
1200
1201 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
1202 if (clear_buffers & (PIPE_CLEAR_COLOR0 << i)) {
1203 blend.rt[i].colormask = PIPE_MASK_RGBA;
1204 }
1205 }
1206
1207 ctx->blend_clear[index] = pipe->create_blend_state(pipe, &blend);
1208 }
1209 return ctx->blend_clear[index];
1210 }
1211
1212 static void util_blitter_clear_custom(struct blitter_context *blitter,
1213 unsigned width, unsigned height,
1214 unsigned num_layers,
1215 unsigned clear_buffers,
1216 const union pipe_color_union *color,
1217 double depth, unsigned stencil,
1218 void *custom_blend, void *custom_dsa)
1219 {
1220 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
1221 struct pipe_context *pipe = ctx->base.pipe;
1222 struct pipe_stencil_ref sr = { { 0 } };
1223
1224 assert(ctx->has_layered || num_layers <= 1);
1225
1226 blitter_set_running_flag(ctx);
1227 blitter_check_saved_vertex_states(ctx);
1228 blitter_check_saved_fragment_states(ctx);
1229 blitter_disable_render_cond(ctx);
1230
1231 /* bind states */
1232 if (custom_blend) {
1233 pipe->bind_blend_state(pipe, custom_blend);
1234 } else {
1235 pipe->bind_blend_state(pipe, get_clear_blend_state(ctx, clear_buffers));
1236 }
1237
1238 if (custom_dsa) {
1239 pipe->bind_depth_stencil_alpha_state(pipe, custom_dsa);
1240 } else if ((clear_buffers & PIPE_CLEAR_DEPTHSTENCIL) == PIPE_CLEAR_DEPTHSTENCIL) {
1241 pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_stencil);
1242 } else if (clear_buffers & PIPE_CLEAR_DEPTH) {
1243 pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_keep_stencil);
1244 } else if (clear_buffers & PIPE_CLEAR_STENCIL) {
1245 pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil);
1246 } else {
1247 pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
1248 }
1249
1250 sr.ref_value[0] = stencil & 0xff;
1251 pipe->set_stencil_ref(pipe, &sr);
1252
1253 pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
1254 bind_fs_write_all_cbufs(ctx);
1255 pipe->set_sample_mask(pipe, ~0);
1256
1257 blitter_set_dst_dimensions(ctx, width, height);
1258
1259 if (num_layers > 1 && ctx->has_layered) {
1260 blitter_set_common_draw_rect_state(ctx, FALSE, TRUE);
1261 blitter_set_clear_color(ctx, color);
1262 blitter_draw(ctx, 0, 0, width, height, depth, num_layers);
1263 }
1264 else {
1265 blitter_set_common_draw_rect_state(ctx, FALSE, FALSE);
1266 blitter->draw_rectangle(blitter, 0, 0, width, height, (float) depth,
1267 UTIL_BLITTER_ATTRIB_COLOR, color);
1268 }
1269
1270 blitter_restore_vertex_states(ctx);
1271 blitter_restore_fragment_states(ctx);
1272 blitter_restore_render_cond(ctx);
1273 blitter_unset_running_flag(ctx);
1274 }
1275
1276 void util_blitter_clear(struct blitter_context *blitter,
1277 unsigned width, unsigned height, unsigned num_layers,
1278 unsigned clear_buffers,
1279 const union pipe_color_union *color,
1280 double depth, unsigned stencil)
1281 {
1282 util_blitter_clear_custom(blitter, width, height, num_layers,
1283 clear_buffers, color, depth, stencil,
1284 NULL, NULL);
1285 }
1286
1287 void util_blitter_custom_clear_depth(struct blitter_context *blitter,
1288 unsigned width, unsigned height,
1289 double depth, void *custom_dsa)
1290 {
1291 static const union pipe_color_union color;
1292 util_blitter_clear_custom(blitter, width, height, 0, 0, &color, depth, 0,
1293 NULL, custom_dsa);
1294 }
1295
1296 void util_blitter_default_dst_texture(struct pipe_surface *dst_templ,
1297 struct pipe_resource *dst,
1298 unsigned dstlevel,
1299 unsigned dstz)
1300 {
1301 memset(dst_templ, 0, sizeof(*dst_templ));
1302 dst_templ->format = util_format_linear(dst->format);
1303 dst_templ->u.tex.level = dstlevel;
1304 dst_templ->u.tex.first_layer = dstz;
1305 dst_templ->u.tex.last_layer = dstz;
1306 }
1307
1308 static struct pipe_surface *
1309 util_blitter_get_next_surface_layer(struct pipe_context *pipe,
1310 struct pipe_surface *surf)
1311 {
1312 struct pipe_surface dst_templ;
1313
1314 memset(&dst_templ, 0, sizeof(dst_templ));
1315 dst_templ.format = surf->format;
1316 dst_templ.u.tex.level = surf->u.tex.level;
1317 dst_templ.u.tex.first_layer = surf->u.tex.first_layer + 1;
1318 dst_templ.u.tex.last_layer = surf->u.tex.last_layer + 1;
1319
1320 return pipe->create_surface(pipe, surf->texture, &dst_templ);
1321 }
1322
1323 void util_blitter_default_src_texture(struct pipe_sampler_view *src_templ,
1324 struct pipe_resource *src,
1325 unsigned srclevel)
1326 {
1327 memset(src_templ, 0, sizeof(*src_templ));
1328 src_templ->target = src->target;
1329 src_templ->format = util_format_linear(src->format);
1330 src_templ->u.tex.first_level = srclevel;
1331 src_templ->u.tex.last_level = srclevel;
1332 src_templ->u.tex.first_layer = 0;
1333 src_templ->u.tex.last_layer =
1334 src->target == PIPE_TEXTURE_3D ? u_minify(src->depth0, srclevel) - 1
1335 : src->array_size - 1;
1336 src_templ->swizzle_r = PIPE_SWIZZLE_RED;
1337 src_templ->swizzle_g = PIPE_SWIZZLE_GREEN;
1338 src_templ->swizzle_b = PIPE_SWIZZLE_BLUE;
1339 src_templ->swizzle_a = PIPE_SWIZZLE_ALPHA;
1340 }
1341
1342 static boolean is_blit_generic_supported(struct blitter_context *blitter,
1343 const struct pipe_resource *dst,
1344 enum pipe_format dst_format,
1345 const struct pipe_resource *src,
1346 enum pipe_format src_format,
1347 unsigned mask)
1348 {
1349 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
1350 struct pipe_screen *screen = ctx->base.pipe->screen;
1351
1352 if (dst) {
1353 unsigned bind;
1354 const struct util_format_description *desc =
1355 util_format_description(dst_format);
1356 boolean dst_has_stencil = util_format_has_stencil(desc);
1357
1358 /* Stencil export must be supported for stencil copy. */
1359 if ((mask & PIPE_MASK_S) && dst_has_stencil &&
1360 !ctx->has_stencil_export) {
1361 return FALSE;
1362 }
1363
1364 if (dst_has_stencil || util_format_has_depth(desc))
1365 bind = PIPE_BIND_DEPTH_STENCIL;
1366 else
1367 bind = PIPE_BIND_RENDER_TARGET;
1368
1369 if (!screen->is_format_supported(screen, dst_format, dst->target,
1370 dst->nr_samples, bind)) {
1371 return FALSE;
1372 }
1373 }
1374
1375 if (src) {
1376 if (src->nr_samples > 1 && !ctx->has_texture_multisample) {
1377 return FALSE;
1378 }
1379
1380 if (!screen->is_format_supported(screen, src_format, src->target,
1381 src->nr_samples, PIPE_BIND_SAMPLER_VIEW)) {
1382 return FALSE;
1383 }
1384
1385 /* Check stencil sampler support for stencil copy. */
1386 if (mask & PIPE_MASK_S) {
1387 if (util_format_has_stencil(util_format_description(src_format))) {
1388 enum pipe_format stencil_format =
1389 util_format_stencil_only(src_format);
1390 assert(stencil_format != PIPE_FORMAT_NONE);
1391
1392 if (stencil_format != src_format &&
1393 !screen->is_format_supported(screen, stencil_format,
1394 src->target, src->nr_samples,
1395 PIPE_BIND_SAMPLER_VIEW)) {
1396 return FALSE;
1397 }
1398 }
1399 }
1400 }
1401
1402 return TRUE;
1403 }
1404
1405 boolean util_blitter_is_copy_supported(struct blitter_context *blitter,
1406 const struct pipe_resource *dst,
1407 const struct pipe_resource *src)
1408 {
1409 return is_blit_generic_supported(blitter, dst, dst->format,
1410 src, src->format, PIPE_MASK_RGBAZS);
1411 }
1412
1413 boolean util_blitter_is_blit_supported(struct blitter_context *blitter,
1414 const struct pipe_blit_info *info)
1415 {
1416 return is_blit_generic_supported(blitter,
1417 info->dst.resource, info->dst.format,
1418 info->src.resource, info->src.format,
1419 info->mask);
1420 }
1421
1422 void util_blitter_copy_texture(struct blitter_context *blitter,
1423 struct pipe_resource *dst,
1424 unsigned dst_level,
1425 unsigned dstx, unsigned dsty, unsigned dstz,
1426 struct pipe_resource *src,
1427 unsigned src_level,
1428 const struct pipe_box *srcbox)
1429 {
1430 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
1431 struct pipe_context *pipe = ctx->base.pipe;
1432 struct pipe_surface *dst_view, dst_templ;
1433 struct pipe_sampler_view src_templ, *src_view;
1434 struct pipe_box dstbox;
1435
1436 assert(dst && src);
1437 assert(src->target < PIPE_MAX_TEXTURE_TYPES);
1438
1439 u_box_3d(dstx, dsty, dstz, abs(srcbox->width), abs(srcbox->height),
1440 abs(srcbox->depth), &dstbox);
1441
1442 /* Initialize the surface. */
1443 util_blitter_default_dst_texture(&dst_templ, dst, dst_level, dstz);
1444 dst_view = pipe->create_surface(pipe, dst, &dst_templ);
1445
1446 /* Initialize the sampler view. */
1447 util_blitter_default_src_texture(&src_templ, src, src_level);
1448 src_view = pipe->create_sampler_view(pipe, src, &src_templ);
1449
1450 /* Copy. */
1451 util_blitter_blit_generic(blitter, dst_view, &dstbox,
1452 src_view, srcbox, src->width0, src->height0,
1453 PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL);
1454
1455 pipe_surface_reference(&dst_view, NULL);
1456 pipe_sampler_view_reference(&src_view, NULL);
1457 }
1458
1459 void util_blitter_blit_generic(struct blitter_context *blitter,
1460 struct pipe_surface *dst,
1461 const struct pipe_box *dstbox,
1462 struct pipe_sampler_view *src,
1463 const struct pipe_box *srcbox,
1464 unsigned src_width0, unsigned src_height0,
1465 unsigned mask, unsigned filter,
1466 const struct pipe_scissor_state *scissor)
1467 {
1468 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
1469 struct pipe_context *pipe = ctx->base.pipe;
1470 struct pipe_framebuffer_state fb_state;
1471 enum pipe_texture_target src_target = src->texture->target;
1472 unsigned src_samples = src->texture->nr_samples;
1473 unsigned dst_samples = dst->texture->nr_samples;
1474 boolean has_depth, has_stencil, has_color;
1475 boolean blit_stencil, blit_depth, blit_color;
1476 void *sampler_state;
1477 const struct util_format_description *src_desc =
1478 util_format_description(src->format);
1479 const struct util_format_description *dst_desc =
1480 util_format_description(dst->format);
1481
1482 has_color = src_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS &&
1483 dst_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS;
1484 has_depth = util_format_has_depth(src_desc) &&
1485 util_format_has_depth(dst_desc);
1486 has_stencil = util_format_has_stencil(src_desc) &&
1487 util_format_has_stencil(dst_desc);
1488
1489 blit_color = has_color && (mask & PIPE_MASK_RGBA);
1490 blit_depth = has_depth && (mask & PIPE_MASK_Z);
1491 blit_stencil = has_stencil && (mask & PIPE_MASK_S) &&
1492 ctx->has_stencil_export;
1493
1494 if (!blit_stencil && !blit_depth && !blit_color) {
1495 return;
1496 }
1497
1498 if (blit_stencil ||
1499 (dstbox->width == abs(srcbox->width) &&
1500 dstbox->height == abs(srcbox->height))) {
1501 filter = PIPE_TEX_FILTER_NEAREST;
1502 }
1503
1504 /* Check whether the states are properly saved. */
1505 blitter_set_running_flag(ctx);
1506 blitter_check_saved_vertex_states(ctx);
1507 blitter_check_saved_fragment_states(ctx);
1508 blitter_check_saved_textures(ctx);
1509 blitter_check_saved_fb_state(ctx);
1510 blitter_disable_render_cond(ctx);
1511
1512 /* Initialize framebuffer state. */
1513 fb_state.width = dst->width;
1514 fb_state.height = dst->height;
1515 fb_state.nr_cbufs = blit_depth || blit_stencil ? 0 : 1;
1516 fb_state.cbufs[0] = NULL;
1517 fb_state.zsbuf = NULL;
1518
1519 if (blit_depth || blit_stencil) {
1520 pipe->bind_blend_state(pipe, ctx->blend[0]);
1521
1522 if (blit_depth && blit_stencil) {
1523 pipe->bind_depth_stencil_alpha_state(pipe,
1524 ctx->dsa_write_depth_stencil);
1525 ctx->bind_fs_state(pipe,
1526 blitter_get_fs_texfetch_depthstencil(ctx, src_target,
1527 src_samples));
1528 } else if (blit_depth) {
1529 pipe->bind_depth_stencil_alpha_state(pipe,
1530 ctx->dsa_write_depth_keep_stencil);
1531 ctx->bind_fs_state(pipe,
1532 blitter_get_fs_texfetch_depth(ctx, src_target,
1533 src_samples));
1534 } else { /* is_stencil */
1535 pipe->bind_depth_stencil_alpha_state(pipe,
1536 ctx->dsa_keep_depth_write_stencil);
1537 ctx->bind_fs_state(pipe,
1538 blitter_get_fs_texfetch_stencil(ctx, src_target,
1539 src_samples));
1540 }
1541
1542 } else {
1543 pipe->bind_blend_state(pipe, ctx->blend[mask & PIPE_MASK_RGBA]);
1544 pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
1545 ctx->bind_fs_state(pipe,
1546 blitter_get_fs_texfetch_col(ctx, src->format, src_target,
1547 src_samples, dst_samples, filter));
1548 }
1549
1550 /* Set the linear filter only for scaled color non-MSAA blits. */
1551 if (filter == PIPE_TEX_FILTER_LINEAR) {
1552 if (src_target == PIPE_TEXTURE_RECT) {
1553 sampler_state = ctx->sampler_state_rect_linear;
1554 } else {
1555 sampler_state = ctx->sampler_state_linear;
1556 }
1557 } else {
1558 if (src_target == PIPE_TEXTURE_RECT) {
1559 sampler_state = ctx->sampler_state_rect;
1560 } else {
1561 sampler_state = ctx->sampler_state;
1562 }
1563 }
1564
1565 /* Set samplers. */
1566 if (blit_depth && blit_stencil) {
1567 /* Setup two samplers, one for depth and the other one for stencil. */
1568 struct pipe_sampler_view templ;
1569 struct pipe_sampler_view *views[2];
1570 void *samplers[2] = {sampler_state, sampler_state};
1571
1572 templ = *src;
1573 templ.format = util_format_stencil_only(templ.format);
1574 assert(templ.format != PIPE_FORMAT_NONE);
1575
1576 views[0] = src;
1577 views[1] = pipe->create_sampler_view(pipe, src->texture, &templ);
1578
1579 pipe->set_sampler_views(pipe, PIPE_SHADER_FRAGMENT, 0, 2, views);
1580 pipe->bind_sampler_states(pipe, PIPE_SHADER_FRAGMENT, 0, 2, samplers);
1581
1582 pipe_sampler_view_reference(&views[1], NULL);
1583 } else if (blit_stencil) {
1584 /* Set a stencil-only sampler view for it not to sample depth instead. */
1585 struct pipe_sampler_view templ;
1586 struct pipe_sampler_view *view;
1587
1588 templ = *src;
1589 templ.format = util_format_stencil_only(templ.format);
1590 assert(templ.format != PIPE_FORMAT_NONE);
1591
1592 view = pipe->create_sampler_view(pipe, src->texture, &templ);
1593
1594 pipe->set_sampler_views(pipe, PIPE_SHADER_FRAGMENT, 0, 1, &view);
1595 pipe->bind_sampler_states(pipe, PIPE_SHADER_FRAGMENT,
1596 0, 1, &sampler_state);
1597
1598 pipe_sampler_view_reference(&view, NULL);
1599 } else {
1600 pipe->set_sampler_views(pipe, PIPE_SHADER_FRAGMENT, 0, 1, &src);
1601 pipe->bind_sampler_states(pipe, PIPE_SHADER_FRAGMENT,
1602 0, 1, &sampler_state);
1603 }
1604
1605 pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
1606 if (scissor) {
1607 pipe->set_scissor_states(pipe, 0, 1, scissor);
1608 }
1609
1610 blitter_set_common_draw_rect_state(ctx, scissor != NULL, FALSE);
1611 blitter_set_dst_dimensions(ctx, dst->width, dst->height);
1612
1613 if ((src_target == PIPE_TEXTURE_1D ||
1614 src_target == PIPE_TEXTURE_2D ||
1615 src_target == PIPE_TEXTURE_RECT) &&
1616 src_samples <= 1) {
1617 /* Draw the quad with the draw_rectangle callback. */
1618
1619 /* Set texture coordinates. - use a pipe color union
1620 * for interface purposes.
1621 * XXX pipe_color_union is a wrong name since we use that to set
1622 * texture coordinates too.
1623 */
1624 union pipe_color_union coord;
1625 get_texcoords(src, src_width0, src_height0, srcbox->x, srcbox->y,
1626 srcbox->x+srcbox->width, srcbox->y+srcbox->height, coord.f);
1627
1628 /* Set framebuffer state. */
1629 if (blit_depth || blit_stencil) {
1630 fb_state.zsbuf = dst;
1631 } else {
1632 fb_state.cbufs[0] = dst;
1633 }
1634 pipe->set_framebuffer_state(pipe, &fb_state);
1635
1636 /* Draw. */
1637 pipe->set_sample_mask(pipe, ~0);
1638 blitter->draw_rectangle(blitter, dstbox->x, dstbox->y,
1639 dstbox->x + dstbox->width,
1640 dstbox->y + dstbox->height, 0,
1641 UTIL_BLITTER_ATTRIB_TEXCOORD, &coord);
1642 } else {
1643 /* Draw the quad with the generic codepath. */
1644 int dst_z;
1645 for (dst_z = 0; dst_z < dstbox->depth; dst_z++) {
1646 struct pipe_surface *old;
1647 float dst2src_scale = srcbox->depth / (float)dstbox->depth;
1648
1649 /* Scale Z properly if the blit is scaled.
1650 *
1651 * When downscaling, we want the coordinates centered, so that
1652 * mipmapping works for 3D textures. For example, when generating
1653 * a 4x4x4 level, this wouldn't average the pixels:
1654 *
1655 * src Z: 0 1 2 3 4 5 6 7
1656 * dst Z: 0 1 2 3
1657 *
1658 * Because the pixels are not centered below the pixels of the higher
1659 * level. Therefore, we want this:
1660 * src Z: 0 1 2 3 4 5 6 7
1661 * dst Z: 0 1 2 3
1662 *
1663 * dst_offset defines the offset needed for centering the pixels and
1664 * it works with any scaling (not just 2x).
1665 */
1666 float dst_offset = ((srcbox->depth - 1) -
1667 (dstbox->depth - 1) * dst2src_scale) * 0.5;
1668 float src_z = (dst_z + dst_offset) * dst2src_scale;
1669
1670 /* Set framebuffer state. */
1671 if (blit_depth || blit_stencil) {
1672 fb_state.zsbuf = dst;
1673 } else {
1674 fb_state.cbufs[0] = dst;
1675 }
1676 pipe->set_framebuffer_state(pipe, &fb_state);
1677
1678 /* See if we need to blit a multisample or singlesample buffer. */
1679 if (src_samples == dst_samples && dst_samples > 1) {
1680 /* MSAA copy. */
1681 unsigned i, max_sample = dst_samples - 1;
1682
1683 for (i = 0; i <= max_sample; i++) {
1684 pipe->set_sample_mask(pipe, 1 << i);
1685 blitter_set_texcoords(ctx, src, src_width0, src_height0,
1686 srcbox->z + src_z,
1687 i, srcbox->x, srcbox->y,
1688 srcbox->x + srcbox->width,
1689 srcbox->y + srcbox->height);
1690 blitter_draw(ctx, dstbox->x, dstbox->y,
1691 dstbox->x + dstbox->width,
1692 dstbox->y + dstbox->height, 0, 1);
1693 }
1694 } else {
1695 /* Normal copy, MSAA upsampling, or MSAA resolve. */
1696 pipe->set_sample_mask(pipe, ~0);
1697 blitter_set_texcoords(ctx, src, src_width0, src_height0,
1698 srcbox->z + src_z, 0,
1699 srcbox->x, srcbox->y,
1700 srcbox->x + srcbox->width,
1701 srcbox->y + srcbox->height);
1702 blitter_draw(ctx, dstbox->x, dstbox->y,
1703 dstbox->x + dstbox->width,
1704 dstbox->y + dstbox->height, 0, 1);
1705 }
1706
1707 /* Get the next surface or (if this is the last iteration)
1708 * just unreference the last one. */
1709 old = dst;
1710 if (dst_z < dstbox->depth-1) {
1711 dst = ctx->base.get_next_surface_layer(ctx->base.pipe, dst);
1712 }
1713 if (dst_z) {
1714 pipe_surface_reference(&old, NULL);
1715 }
1716 }
1717 }
1718
1719 blitter_restore_vertex_states(ctx);
1720 blitter_restore_fragment_states(ctx);
1721 blitter_restore_textures(ctx);
1722 blitter_restore_fb_state(ctx);
1723 if (scissor) {
1724 pipe->set_scissor_states(pipe, 0, 1, &ctx->base.saved_scissor);
1725 }
1726 blitter_restore_render_cond(ctx);
1727 blitter_unset_running_flag(ctx);
1728 }
1729
1730 void
1731 util_blitter_blit(struct blitter_context *blitter,
1732 const struct pipe_blit_info *info)
1733 {
1734 struct pipe_resource *dst = info->dst.resource;
1735 struct pipe_resource *src = info->src.resource;
1736 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
1737 struct pipe_context *pipe = ctx->base.pipe;
1738 struct pipe_surface *dst_view, dst_templ;
1739 struct pipe_sampler_view src_templ, *src_view;
1740
1741 /* Initialize the surface. */
1742 util_blitter_default_dst_texture(&dst_templ, dst, info->dst.level,
1743 info->dst.box.z);
1744 dst_templ.format = info->dst.format;
1745 dst_view = pipe->create_surface(pipe, dst, &dst_templ);
1746
1747 /* Initialize the sampler view. */
1748 util_blitter_default_src_texture(&src_templ, src, info->src.level);
1749 src_templ.format = info->src.format;
1750 src_view = pipe->create_sampler_view(pipe, src, &src_templ);
1751
1752 /* Copy. */
1753 util_blitter_blit_generic(blitter, dst_view, &info->dst.box,
1754 src_view, &info->src.box, src->width0, src->height0,
1755 info->mask, info->filter,
1756 info->scissor_enable ? &info->scissor : NULL);
1757
1758 pipe_surface_reference(&dst_view, NULL);
1759 pipe_sampler_view_reference(&src_view, NULL);
1760 }
1761
1762 /* Clear a region of a color surface to a constant value. */
1763 void util_blitter_clear_render_target(struct blitter_context *blitter,
1764 struct pipe_surface *dstsurf,
1765 const union pipe_color_union *color,
1766 unsigned dstx, unsigned dsty,
1767 unsigned width, unsigned height)
1768 {
1769 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
1770 struct pipe_context *pipe = ctx->base.pipe;
1771 struct pipe_framebuffer_state fb_state;
1772
1773 assert(dstsurf->texture);
1774 if (!dstsurf->texture)
1775 return;
1776
1777 /* check the saved state */
1778 blitter_set_running_flag(ctx);
1779 blitter_check_saved_vertex_states(ctx);
1780 blitter_check_saved_fragment_states(ctx);
1781 blitter_check_saved_fb_state(ctx);
1782 blitter_disable_render_cond(ctx);
1783
1784 /* bind states */
1785 pipe->bind_blend_state(pipe, ctx->blend[PIPE_MASK_RGBA]);
1786 pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
1787 bind_fs_write_one_cbuf(ctx);
1788 pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
1789
1790 /* set a framebuffer state */
1791 fb_state.width = dstsurf->width;
1792 fb_state.height = dstsurf->height;
1793 fb_state.nr_cbufs = 1;
1794 fb_state.cbufs[0] = dstsurf;
1795 fb_state.zsbuf = 0;
1796 pipe->set_framebuffer_state(pipe, &fb_state);
1797 pipe->set_sample_mask(pipe, ~0);
1798
1799 blitter_set_common_draw_rect_state(ctx, FALSE, FALSE);
1800 blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height);
1801 blitter->draw_rectangle(blitter, dstx, dsty, dstx+width, dsty+height, 0,
1802 UTIL_BLITTER_ATTRIB_COLOR, color);
1803
1804 blitter_restore_vertex_states(ctx);
1805 blitter_restore_fragment_states(ctx);
1806 blitter_restore_fb_state(ctx);
1807 blitter_restore_render_cond(ctx);
1808 blitter_unset_running_flag(ctx);
1809 }
1810
1811 /* Clear a region of a depth stencil surface. */
1812 void util_blitter_clear_depth_stencil(struct blitter_context *blitter,
1813 struct pipe_surface *dstsurf,
1814 unsigned clear_flags,
1815 double depth,
1816 unsigned stencil,
1817 unsigned dstx, unsigned dsty,
1818 unsigned width, unsigned height)
1819 {
1820 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
1821 struct pipe_context *pipe = ctx->base.pipe;
1822 struct pipe_framebuffer_state fb_state;
1823 struct pipe_stencil_ref sr = { { 0 } };
1824
1825 assert(dstsurf->texture);
1826 if (!dstsurf->texture)
1827 return;
1828
1829 /* check the saved state */
1830 blitter_set_running_flag(ctx);
1831 blitter_check_saved_vertex_states(ctx);
1832 blitter_check_saved_fragment_states(ctx);
1833 blitter_check_saved_fb_state(ctx);
1834 blitter_disable_render_cond(ctx);
1835
1836 /* bind states */
1837 pipe->bind_blend_state(pipe, ctx->blend[0]);
1838 if ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) == PIPE_CLEAR_DEPTHSTENCIL) {
1839 sr.ref_value[0] = stencil & 0xff;
1840 pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_stencil);
1841 pipe->set_stencil_ref(pipe, &sr);
1842 }
1843 else if (clear_flags & PIPE_CLEAR_DEPTH) {
1844 pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_keep_stencil);
1845 }
1846 else if (clear_flags & PIPE_CLEAR_STENCIL) {
1847 sr.ref_value[0] = stencil & 0xff;
1848 pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil);
1849 pipe->set_stencil_ref(pipe, &sr);
1850 }
1851 else
1852 /* hmm that should be illegal probably, or make it a no-op somewhere */
1853 pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
1854
1855 bind_fs_empty(ctx);
1856 pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
1857
1858 /* set a framebuffer state */
1859 fb_state.width = dstsurf->width;
1860 fb_state.height = dstsurf->height;
1861 fb_state.nr_cbufs = 0;
1862 fb_state.cbufs[0] = 0;
1863 fb_state.zsbuf = dstsurf;
1864 pipe->set_framebuffer_state(pipe, &fb_state);
1865 pipe->set_sample_mask(pipe, ~0);
1866
1867 blitter_set_common_draw_rect_state(ctx, FALSE, FALSE);
1868 blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height);
1869 blitter->draw_rectangle(blitter, dstx, dsty, dstx+width, dsty+height,
1870 (float) depth,
1871 UTIL_BLITTER_ATTRIB_NONE, NULL);
1872
1873 blitter_restore_vertex_states(ctx);
1874 blitter_restore_fragment_states(ctx);
1875 blitter_restore_fb_state(ctx);
1876 blitter_restore_render_cond(ctx);
1877 blitter_unset_running_flag(ctx);
1878 }
1879
1880 /* draw a rectangle across a region using a custom dsa stage - for r600g */
1881 void util_blitter_custom_depth_stencil(struct blitter_context *blitter,
1882 struct pipe_surface *zsurf,
1883 struct pipe_surface *cbsurf,
1884 unsigned sample_mask,
1885 void *dsa_stage, float depth)
1886 {
1887 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
1888 struct pipe_context *pipe = ctx->base.pipe;
1889 struct pipe_framebuffer_state fb_state;
1890
1891 assert(zsurf->texture);
1892 if (!zsurf->texture)
1893 return;
1894
1895 /* check the saved state */
1896 blitter_set_running_flag(ctx);
1897 blitter_check_saved_vertex_states(ctx);
1898 blitter_check_saved_fragment_states(ctx);
1899 blitter_check_saved_fb_state(ctx);
1900 blitter_disable_render_cond(ctx);
1901
1902 /* bind states */
1903 pipe->bind_blend_state(pipe, cbsurf ? ctx->blend[PIPE_MASK_RGBA] :
1904 ctx->blend[0]);
1905 pipe->bind_depth_stencil_alpha_state(pipe, dsa_stage);
1906 if (cbsurf)
1907 bind_fs_write_one_cbuf(ctx);
1908 else
1909 bind_fs_empty(ctx);
1910 pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
1911
1912 /* set a framebuffer state */
1913 fb_state.width = zsurf->width;
1914 fb_state.height = zsurf->height;
1915 fb_state.nr_cbufs = 1;
1916 if (cbsurf) {
1917 fb_state.cbufs[0] = cbsurf;
1918 fb_state.nr_cbufs = 1;
1919 } else {
1920 fb_state.cbufs[0] = NULL;
1921 fb_state.nr_cbufs = 0;
1922 }
1923 fb_state.zsbuf = zsurf;
1924 pipe->set_framebuffer_state(pipe, &fb_state);
1925 pipe->set_sample_mask(pipe, sample_mask);
1926
1927 blitter_set_common_draw_rect_state(ctx, FALSE, FALSE);
1928 blitter_set_dst_dimensions(ctx, zsurf->width, zsurf->height);
1929 blitter->draw_rectangle(blitter, 0, 0, zsurf->width, zsurf->height, depth,
1930 UTIL_BLITTER_ATTRIB_NONE, NULL);
1931
1932 blitter_restore_vertex_states(ctx);
1933 blitter_restore_fragment_states(ctx);
1934 blitter_restore_fb_state(ctx);
1935 blitter_restore_render_cond(ctx);
1936 blitter_unset_running_flag(ctx);
1937 }
1938
1939 void util_blitter_copy_buffer(struct blitter_context *blitter,
1940 struct pipe_resource *dst,
1941 unsigned dstx,
1942 struct pipe_resource *src,
1943 unsigned srcx,
1944 unsigned size)
1945 {
1946 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
1947 struct pipe_context *pipe = ctx->base.pipe;
1948 struct pipe_vertex_buffer vb;
1949 struct pipe_stream_output_target *so_target;
1950 unsigned offsets[PIPE_MAX_SO_BUFFERS] = {0};
1951
1952 if (srcx >= src->width0 ||
1953 dstx >= dst->width0) {
1954 return;
1955 }
1956 if (srcx + size > src->width0) {
1957 size = src->width0 - srcx;
1958 }
1959 if (dstx + size > dst->width0) {
1960 size = dst->width0 - dstx;
1961 }
1962
1963 /* Drivers not capable of Stream Out should not call this function
1964 * in the first place. */
1965 assert(ctx->has_stream_out);
1966
1967 /* Some alignment is required. */
1968 if (srcx % 4 != 0 || dstx % 4 != 0 || size % 4 != 0 ||
1969 !ctx->has_stream_out) {
1970 struct pipe_box box;
1971 u_box_1d(srcx, size, &box);
1972 util_resource_copy_region(pipe, dst, 0, dstx, 0, 0, src, 0, &box);
1973 return;
1974 }
1975
1976 blitter_set_running_flag(ctx);
1977 blitter_check_saved_vertex_states(ctx);
1978 blitter_disable_render_cond(ctx);
1979
1980 vb.buffer = src;
1981 vb.buffer_offset = srcx;
1982 vb.stride = 4;
1983
1984 pipe->set_vertex_buffers(pipe, ctx->base.vb_slot, 1, &vb);
1985 pipe->bind_vertex_elements_state(pipe, ctx->velem_state_readbuf[0]);
1986 bind_vs_pos_only(ctx);
1987 if (ctx->has_geometry_shader)
1988 pipe->bind_gs_state(pipe, NULL);
1989 if (ctx->has_tessellation) {
1990 pipe->bind_tcs_state(pipe, NULL);
1991 pipe->bind_tes_state(pipe, NULL);
1992 }
1993 pipe->bind_rasterizer_state(pipe, ctx->rs_discard_state);
1994
1995 so_target = pipe->create_stream_output_target(pipe, dst, dstx, size);
1996 pipe->set_stream_output_targets(pipe, 1, &so_target, offsets);
1997
1998 util_draw_arrays(pipe, PIPE_PRIM_POINTS, 0, size / 4);
1999
2000 blitter_restore_vertex_states(ctx);
2001 blitter_restore_render_cond(ctx);
2002 blitter_unset_running_flag(ctx);
2003 pipe_so_target_reference(&so_target, NULL);
2004 }
2005
2006 void util_blitter_clear_buffer(struct blitter_context *blitter,
2007 struct pipe_resource *dst,
2008 unsigned offset, unsigned size,
2009 unsigned num_channels,
2010 const union pipe_color_union *clear_value)
2011 {
2012 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
2013 struct pipe_context *pipe = ctx->base.pipe;
2014 struct pipe_vertex_buffer vb = {0};
2015 struct pipe_stream_output_target *so_target;
2016 unsigned offsets[PIPE_MAX_SO_BUFFERS] = {0};
2017
2018 assert(num_channels >= 1);
2019 assert(num_channels <= 4);
2020
2021 /* IMPORTANT: DON'T DO ANY BOUNDS CHECKING HERE!
2022 *
2023 * R600 uses this to initialize texture resources, so width0 might not be
2024 * what you think it is.
2025 */
2026
2027 /* Streamout is required. */
2028 if (!ctx->has_stream_out) {
2029 assert(!"Streamout unsupported in util_blitter_clear_buffer()");
2030 return;
2031 }
2032
2033 /* Some alignment is required. */
2034 if (offset % 4 != 0 || size % 4 != 0) {
2035 assert(!"Bad alignment in util_blitter_clear_buffer()");
2036 return;
2037 }
2038
2039 u_upload_data(ctx->upload, 0, num_channels*4, clear_value,
2040 &vb.buffer_offset, &vb.buffer);
2041 vb.stride = 0;
2042
2043 blitter_set_running_flag(ctx);
2044 blitter_check_saved_vertex_states(ctx);
2045 blitter_disable_render_cond(ctx);
2046
2047 pipe->set_vertex_buffers(pipe, ctx->base.vb_slot, 1, &vb);
2048 pipe->bind_vertex_elements_state(pipe,
2049 ctx->velem_state_readbuf[num_channels-1]);
2050 bind_vs_pos_only(ctx);
2051 if (ctx->has_geometry_shader)
2052 pipe->bind_gs_state(pipe, NULL);
2053 if (ctx->has_tessellation) {
2054 pipe->bind_tcs_state(pipe, NULL);
2055 pipe->bind_tes_state(pipe, NULL);
2056 }
2057 pipe->bind_rasterizer_state(pipe, ctx->rs_discard_state);
2058
2059 so_target = pipe->create_stream_output_target(pipe, dst, offset, size);
2060 pipe->set_stream_output_targets(pipe, 1, &so_target, offsets);
2061
2062 util_draw_arrays(pipe, PIPE_PRIM_POINTS, 0, size / 4);
2063
2064 blitter_restore_vertex_states(ctx);
2065 blitter_restore_render_cond(ctx);
2066 blitter_unset_running_flag(ctx);
2067 pipe_so_target_reference(&so_target, NULL);
2068 pipe_resource_reference(&vb.buffer, NULL);
2069 }
2070
2071 /* probably radeon specific */
2072 void util_blitter_custom_resolve_color(struct blitter_context *blitter,
2073 struct pipe_resource *dst,
2074 unsigned dst_level,
2075 unsigned dst_layer,
2076 struct pipe_resource *src,
2077 unsigned src_layer,
2078 unsigned sample_mask,
2079 void *custom_blend,
2080 enum pipe_format format)
2081 {
2082 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
2083 struct pipe_context *pipe = ctx->base.pipe;
2084 struct pipe_framebuffer_state fb_state;
2085 struct pipe_surface *srcsurf, *dstsurf, surf_tmpl;
2086
2087 blitter_set_running_flag(ctx);
2088 blitter_check_saved_vertex_states(ctx);
2089 blitter_check_saved_fragment_states(ctx);
2090 blitter_disable_render_cond(ctx);
2091
2092 /* bind states */
2093 pipe->bind_blend_state(pipe, custom_blend);
2094 pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
2095 pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
2096 bind_fs_write_one_cbuf(ctx);
2097 pipe->set_sample_mask(pipe, sample_mask);
2098
2099 memset(&surf_tmpl, 0, sizeof(surf_tmpl));
2100 surf_tmpl.format = format;
2101 surf_tmpl.u.tex.level = dst_level;
2102 surf_tmpl.u.tex.first_layer = dst_layer;
2103 surf_tmpl.u.tex.last_layer = dst_layer;
2104
2105 dstsurf = pipe->create_surface(pipe, dst, &surf_tmpl);
2106
2107 surf_tmpl.u.tex.level = 0;
2108 surf_tmpl.u.tex.first_layer = src_layer;
2109 surf_tmpl.u.tex.last_layer = src_layer;
2110
2111 srcsurf = pipe->create_surface(pipe, src, &surf_tmpl);
2112
2113 /* set a framebuffer state */
2114 fb_state.width = src->width0;
2115 fb_state.height = src->height0;
2116 fb_state.nr_cbufs = 2;
2117 fb_state.cbufs[0] = srcsurf;
2118 fb_state.cbufs[1] = dstsurf;
2119 fb_state.zsbuf = NULL;
2120 pipe->set_framebuffer_state(pipe, &fb_state);
2121
2122 blitter_set_common_draw_rect_state(ctx, FALSE, FALSE);
2123 blitter_set_dst_dimensions(ctx, src->width0, src->height0);
2124 blitter->draw_rectangle(blitter, 0, 0, src->width0, src->height0,
2125 0, 0, NULL);
2126 blitter_restore_fb_state(ctx);
2127 blitter_restore_vertex_states(ctx);
2128 blitter_restore_fragment_states(ctx);
2129 blitter_restore_render_cond(ctx);
2130 blitter_unset_running_flag(ctx);
2131
2132 pipe_surface_reference(&srcsurf, NULL);
2133 pipe_surface_reference(&dstsurf, NULL);
2134 }
2135
2136 void util_blitter_custom_color(struct blitter_context *blitter,
2137 struct pipe_surface *dstsurf,
2138 void *custom_blend)
2139 {
2140 struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
2141 struct pipe_context *pipe = ctx->base.pipe;
2142 struct pipe_framebuffer_state fb_state;
2143
2144 assert(dstsurf->texture);
2145 if (!dstsurf->texture)
2146 return;
2147
2148 /* check the saved state */
2149 blitter_set_running_flag(ctx);
2150 blitter_check_saved_vertex_states(ctx);
2151 blitter_check_saved_fragment_states(ctx);
2152 blitter_check_saved_fb_state(ctx);
2153 blitter_disable_render_cond(ctx);
2154
2155 /* bind states */
2156 pipe->bind_blend_state(pipe, custom_blend ? custom_blend
2157 : ctx->blend[PIPE_MASK_RGBA]);
2158 pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
2159 bind_fs_write_one_cbuf(ctx);
2160 pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
2161 pipe->set_sample_mask(pipe, (1ull << MAX2(1, dstsurf->texture->nr_samples)) - 1);
2162
2163 /* set a framebuffer state */
2164 fb_state.width = dstsurf->width;
2165 fb_state.height = dstsurf->height;
2166 fb_state.nr_cbufs = 1;
2167 fb_state.cbufs[0] = dstsurf;
2168 fb_state.zsbuf = 0;
2169 pipe->set_framebuffer_state(pipe, &fb_state);
2170 pipe->set_sample_mask(pipe, ~0);
2171
2172 blitter_set_common_draw_rect_state(ctx, FALSE, FALSE);
2173 blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height);
2174 blitter->draw_rectangle(blitter, 0, 0, dstsurf->width, dstsurf->height,
2175 0, 0, NULL);
2176
2177 blitter_restore_vertex_states(ctx);
2178 blitter_restore_fragment_states(ctx);
2179 blitter_restore_fb_state(ctx);
2180 blitter_restore_render_cond(ctx);
2181 blitter_unset_running_flag(ctx);
2182 }