1 /*
2 * Copyright 2009 Marek Olšák <maraeo@gmail.com>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
22
23 #include "r300_context.h"
24 #include "r300_emit.h"
25 #include "r300_texture.h"
26 #include "r300_reg.h"
27
28 #include "util/format/u_format.h"
29 #include "util/half_float.h"
30 #include "util/u_pack_color.h"
31 #include "util/u_surface.h"
32
33 enum r300_blitter_op /* bitmask */
34 {
35 R300_STOP_QUERY = 1,
36 R300_SAVE_TEXTURES = 2,
37 R300_SAVE_FRAMEBUFFER = 4,
38 R300_IGNORE_RENDER_COND = 8,
39
40 R300_CLEAR = R300_STOP_QUERY,
41
42 R300_CLEAR_SURFACE = R300_STOP_QUERY | R300_SAVE_FRAMEBUFFER,
43
44 R300_COPY = R300_STOP_QUERY | R300_SAVE_FRAMEBUFFER |
45 R300_SAVE_TEXTURES | R300_IGNORE_RENDER_COND,
46
47 R300_BLIT = R300_STOP_QUERY | R300_SAVE_FRAMEBUFFER |
48 R300_SAVE_TEXTURES,
49
50 R300_DECOMPRESS = R300_STOP_QUERY | R300_IGNORE_RENDER_COND,
51 };
52
r300_blitter_begin(struct r300_context * r300,enum r300_blitter_op op)53 static void r300_blitter_begin(struct r300_context* r300, enum r300_blitter_op op)
54 {
55 if ((op & R300_STOP_QUERY) && r300->query_current) {
56 r300->blitter_saved_query = r300->query_current;
57 r300_stop_query(r300);
58 }
59
60 /* Yeah we have to save all those states to ensure the blitter operation
61 * is really transparent. The states will be restored by the blitter once
62 * copying is done. */
63 util_blitter_save_blend(r300->blitter, r300->blend_state.state);
64 util_blitter_save_depth_stencil_alpha(r300->blitter, r300->dsa_state.state);
65 util_blitter_save_stencil_ref(r300->blitter, &(r300->stencil_ref));
66 util_blitter_save_rasterizer(r300->blitter, r300->rs_state.state);
67 util_blitter_save_fragment_shader(r300->blitter, r300->fs.state);
68 util_blitter_save_vertex_shader(r300->blitter, r300->vs_state.state);
69 util_blitter_save_viewport(r300->blitter, &r300->viewport);
70 util_blitter_save_scissor(r300->blitter, r300->scissor_state.state);
71 util_blitter_save_sample_mask(r300->blitter, *(unsigned*)r300->sample_mask.state);
72 util_blitter_save_vertex_buffer_slot(r300->blitter, r300->vertex_buffer);
73 util_blitter_save_vertex_elements(r300->blitter, r300->velems);
74
75 if (op & R300_SAVE_FRAMEBUFFER) {
76 util_blitter_save_framebuffer(r300->blitter, r300->fb_state.state);
77 }
78
79 if (op & R300_SAVE_TEXTURES) {
80 struct r300_textures_state* state =
81 (struct r300_textures_state*)r300->textures_state.state;
82
83 util_blitter_save_fragment_sampler_states(
84 r300->blitter, state->sampler_state_count,
85 (void**)state->sampler_states);
86
87 util_blitter_save_fragment_sampler_views(
88 r300->blitter, state->sampler_view_count,
89 (struct pipe_sampler_view**)state->sampler_views);
90 }
91
92 if (op & R300_IGNORE_RENDER_COND) {
93 /* Save the flag. */
94 r300->blitter_saved_skip_rendering = r300->skip_rendering+1;
95 r300->skip_rendering = FALSE;
96 } else {
97 r300->blitter_saved_skip_rendering = 0;
98 }
99 }
100
r300_blitter_end(struct r300_context * r300)101 static void r300_blitter_end(struct r300_context *r300)
102 {
103 if (r300->blitter_saved_query) {
104 r300_resume_query(r300, r300->blitter_saved_query);
105 r300->blitter_saved_query = NULL;
106 }
107
108 if (r300->blitter_saved_skip_rendering) {
109 /* Restore the flag. */
110 r300->skip_rendering = r300->blitter_saved_skip_rendering-1;
111 }
112 }
113
r300_depth_clear_cb_value(enum pipe_format format,const float * rgba)114 static uint32_t r300_depth_clear_cb_value(enum pipe_format format,
115 const float* rgba)
116 {
117 union util_color uc;
118 util_pack_color(rgba, format, &uc);
119
120 if (util_format_get_blocksizebits(format) == 32)
121 return uc.ui[0];
122 else
123 return uc.us | (uc.us << 16);
124 }
125
r300_cbzb_clear_allowed(struct r300_context * r300,unsigned clear_buffers)126 static boolean r300_cbzb_clear_allowed(struct r300_context *r300,
127 unsigned clear_buffers)
128 {
129 struct pipe_framebuffer_state *fb =
130 (struct pipe_framebuffer_state*)r300->fb_state.state;
131
132 /* Only color clear allowed, and only one colorbuffer. */
133 if ((clear_buffers & ~PIPE_CLEAR_COLOR) != 0 || fb->nr_cbufs != 1 || !fb->cbufs[0])
134 return FALSE;
135
136 return r300_surface(fb->cbufs[0])->cbzb_allowed;
137 }
138
r300_fast_zclear_allowed(struct r300_context * r300,unsigned clear_buffers)139 static boolean r300_fast_zclear_allowed(struct r300_context *r300,
140 unsigned clear_buffers)
141 {
142 struct pipe_framebuffer_state *fb =
143 (struct pipe_framebuffer_state*)r300->fb_state.state;
144
145 return r300_resource(fb->zsbuf->texture)->tex.zmask_dwords[fb->zsbuf->u.tex.level] != 0;
146 }
147
r300_hiz_clear_allowed(struct r300_context * r300)148 static boolean r300_hiz_clear_allowed(struct r300_context *r300)
149 {
150 struct pipe_framebuffer_state *fb =
151 (struct pipe_framebuffer_state*)r300->fb_state.state;
152
153 return r300_resource(fb->zsbuf->texture)->tex.hiz_dwords[fb->zsbuf->u.tex.level] != 0;
154 }
155
r300_depth_clear_value(enum pipe_format format,double depth,unsigned stencil)156 static uint32_t r300_depth_clear_value(enum pipe_format format,
157 double depth, unsigned stencil)
158 {
159 switch (format) {
160 case PIPE_FORMAT_Z16_UNORM:
161 case PIPE_FORMAT_X8Z24_UNORM:
162 return util_pack_z(format, depth);
163
164 case PIPE_FORMAT_S8_UINT_Z24_UNORM:
165 return util_pack_z_stencil(format, depth, stencil);
166
167 default:
168 assert(0);
169 return 0;
170 }
171 }
172
r300_hiz_clear_value(double depth)173 static uint32_t r300_hiz_clear_value(double depth)
174 {
175 uint32_t r = (uint32_t)(CLAMP(depth, 0, 1) * 255.5);
176 assert(r <= 255);
177 return r | (r << 8) | (r << 16) | (r << 24);
178 }
179
r300_set_clear_color(struct r300_context * r300,const union pipe_color_union * color)180 static void r300_set_clear_color(struct r300_context *r300,
181 const union pipe_color_union *color)
182 {
183 struct pipe_framebuffer_state *fb =
184 (struct pipe_framebuffer_state*)r300->fb_state.state;
185 union util_color uc;
186
187 memset(&uc, 0, sizeof(uc));
188 util_pack_color(color->f, fb->cbufs[0]->format, &uc);
189
190 if (fb->cbufs[0]->format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
191 fb->cbufs[0]->format == PIPE_FORMAT_R16G16B16X16_FLOAT) {
192 /* (0,1,2,3) maps to (B,G,R,A) */
193 r300->color_clear_value_gb = uc.h[0] | ((uint32_t)uc.h[1] << 16);
194 r300->color_clear_value_ar = uc.h[2] | ((uint32_t)uc.h[3] << 16);
195 } else {
196 r300->color_clear_value = uc.ui[0];
197 }
198 }
199
200 DEBUG_GET_ONCE_BOOL_OPTION(hyperz, "RADEON_HYPERZ", FALSE)
201
202 /* Clear currently bound buffers. */
r300_clear(struct pipe_context * pipe,unsigned buffers,const struct pipe_scissor_state * scissor_state,const union pipe_color_union * color,double depth,unsigned stencil)203 static void r300_clear(struct pipe_context* pipe,
204 unsigned buffers,
205 const struct pipe_scissor_state *scissor_state,
206 const union pipe_color_union *color,
207 double depth,
208 unsigned stencil)
209 {
210 /* My notes about Zbuffer compression:
211 *
212 * 1) The zbuffer must be micro-tiled and whole microtiles must be
213 * written if compression is enabled. If microtiling is disabled,
214 * it locks up.
215 *
216 * 2) There is ZMASK RAM which contains a compressed zbuffer.
217 * Each dword of the Z Mask contains compression information
218 * for 16 4x4 pixel tiles, that is 2 bits for each tile.
219 * On chips with 2 Z pipes, every other dword maps to a different
220 * pipe. On newer chipsets, there is a new compression mode
221 * with 8x8 pixel tiles per 2 bits.
222 *
223 * 3) The FASTFILL bit has nothing to do with filling. It only tells hw
224 * it should look in the ZMASK RAM first before fetching from a real
225 * zbuffer.
226 *
227 * 4) If a pixel is in a cleared state, ZB_DEPTHCLEARVALUE is returned
228 * during zbuffer reads instead of the value that is actually stored
229 * in the zbuffer memory. A pixel is in a cleared state when its ZMASK
230 * is equal to 0. Therefore, if you clear ZMASK with zeros, you may
231 * leave the zbuffer memory uninitialized, but then you must enable
232 * compression, so that the ZMASK RAM is actually used.
233 *
234 * 5) Each 4x4 (or 8x8) tile is automatically decompressed and recompressed
235 * during zbuffer updates. A special decompressing operation should be
236 * used to fully decompress a zbuffer, which basically just stores all
237 * compressed tiles in ZMASK to the zbuffer memory.
238 *
239 * 6) For a 16-bit zbuffer, compression causes a hung with one or
240 * two samples and should not be used.
241 *
242 * 7) FORCE_COMPRESSED_STENCIL_VALUE should be enabled for stencil clears
243 * to avoid needless decompression.
244 *
245 * 8) Fastfill must not be used if reading of compressed Z data is disabled
246 * and writing of compressed Z data is enabled (RD/WR_COMP_ENABLE),
247 * i.e. it cannot be used to compress the zbuffer.
248 *
249 * 9) ZB_CB_CLEAR does not interact with zbuffer compression in any way.
250 *
251 * - Marek
252 */
253
254 struct r300_context* r300 = r300_context(pipe);
255 struct pipe_framebuffer_state *fb =
256 (struct pipe_framebuffer_state*)r300->fb_state.state;
257 struct r300_hyperz_state *hyperz =
258 (struct r300_hyperz_state*)r300->hyperz_state.state;
259 uint32_t width = fb->width;
260 uint32_t height = fb->height;
261 uint32_t hyperz_dcv = hyperz->zb_depthclearvalue;
262
263 /* Use fast Z clear.
264 * The zbuffer must be in micro-tiled mode, otherwise it locks up. */
265 if (buffers & PIPE_CLEAR_DEPTHSTENCIL) {
266 boolean zmask_clear, hiz_clear;
267
268 /* If both depth and stencil are present, they must be cleared together. */
269 if (fb->zsbuf->texture->format == PIPE_FORMAT_S8_UINT_Z24_UNORM &&
270 (buffers & PIPE_CLEAR_DEPTHSTENCIL) != PIPE_CLEAR_DEPTHSTENCIL) {
271 zmask_clear = FALSE;
272 hiz_clear = FALSE;
273 } else {
274 zmask_clear = r300_fast_zclear_allowed(r300, buffers);
275 hiz_clear = r300_hiz_clear_allowed(r300);
276 }
277
278 /* If we need Hyper-Z. */
279 if (zmask_clear || hiz_clear) {
280 /* Try to obtain the access to Hyper-Z buffers if we don't have one. */
281 if (!r300->hyperz_enabled &&
282 (r300->screen->caps.is_r500 || debug_get_option_hyperz())) {
283 r300->hyperz_enabled =
284 r300->rws->cs_request_feature(&r300->cs,
285 RADEON_FID_R300_HYPERZ_ACCESS,
286 TRUE);
287 if (r300->hyperz_enabled) {
288 /* Need to emit HyperZ buffer regs for the first time. */
289 r300_mark_fb_state_dirty(r300, R300_CHANGED_HYPERZ_FLAG);
290 }
291 }
292
293 /* Setup Hyper-Z clears. */
294 if (r300->hyperz_enabled) {
295 if (zmask_clear) {
296 hyperz_dcv = hyperz->zb_depthclearvalue =
297 r300_depth_clear_value(fb->zsbuf->format, depth, stencil);
298
299 r300_mark_atom_dirty(r300, &r300->zmask_clear);
300 r300_mark_atom_dirty(r300, &r300->gpu_flush);
301 buffers &= ~PIPE_CLEAR_DEPTHSTENCIL;
302 }
303
304 if (hiz_clear) {
305 r300->hiz_clear_value = r300_hiz_clear_value(depth);
306 r300_mark_atom_dirty(r300, &r300->hiz_clear);
307 r300_mark_atom_dirty(r300, &r300->gpu_flush);
308 }
309 r300->num_z_clears++;
310 }
311 }
312 }
313
314 /* Use fast color clear for an AA colorbuffer.
315 * The CMASK is shared between all colorbuffers, so we use it
316 * if there is only one colorbuffer bound. */
317 if ((buffers & PIPE_CLEAR_COLOR) && fb->nr_cbufs == 1 && fb->cbufs[0] &&
318 r300_resource(fb->cbufs[0]->texture)->tex.cmask_dwords) {
319 /* Try to obtain the access to the CMASK if we don't have one. */
320 if (!r300->cmask_access) {
321 r300->cmask_access =
322 r300->rws->cs_request_feature(&r300->cs,
323 RADEON_FID_R300_CMASK_ACCESS,
324 TRUE);
325 }
326
327 /* Setup the clear. */
328 if (r300->cmask_access) {
329 /* Pair the resource with the CMASK to avoid other resources
330 * accessing it. */
331 if (!r300->screen->cmask_resource) {
332 mtx_lock(&r300->screen->cmask_mutex);
333 /* Double checking (first unlocked, then locked). */
334 if (!r300->screen->cmask_resource) {
335 /* Don't reference this, so that the texture can be
336 * destroyed while set in cmask_resource.
337 * Then in texture_destroy, we set cmask_resource to NULL. */
338 r300->screen->cmask_resource = fb->cbufs[0]->texture;
339 }
340 mtx_unlock(&r300->screen->cmask_mutex);
341 }
342
343 if (r300->screen->cmask_resource == fb->cbufs[0]->texture) {
344 r300_set_clear_color(r300, color);
345 r300_mark_atom_dirty(r300, &r300->cmask_clear);
346 r300_mark_atom_dirty(r300, &r300->gpu_flush);
347 buffers &= ~PIPE_CLEAR_COLOR;
348 }
349 }
350 }
351 /* Enable CBZB clear. */
352 else if (r300_cbzb_clear_allowed(r300, buffers)) {
353 struct r300_surface *surf = r300_surface(fb->cbufs[0]);
354
355 hyperz->zb_depthclearvalue =
356 r300_depth_clear_cb_value(surf->base.format, color->f);
357
358 width = surf->cbzb_width;
359 height = surf->cbzb_height;
360
361 r300->cbzb_clear = TRUE;
362 r300_mark_fb_state_dirty(r300, R300_CHANGED_HYPERZ_FLAG);
363 }
364
365 /* Clear. */
366 if (buffers) {
367 /* Clear using the blitter. */
368 r300_blitter_begin(r300, R300_CLEAR);
369 util_blitter_clear(r300->blitter, width, height, 1,
370 buffers, color, depth, stencil,
371 util_framebuffer_get_num_samples(fb) > 1);
372 r300_blitter_end(r300);
373 } else if (r300->zmask_clear.dirty ||
374 r300->hiz_clear.dirty ||
375 r300->cmask_clear.dirty) {
376 /* Just clear zmask and hiz now, this does not use the standard draw
377 * procedure. */
378 /* Calculate zmask_clear and hiz_clear atom sizes. */
379 unsigned dwords =
380 r300->gpu_flush.size +
381 (r300->zmask_clear.dirty ? r300->zmask_clear.size : 0) +
382 (r300->hiz_clear.dirty ? r300->hiz_clear.size : 0) +
383 (r300->cmask_clear.dirty ? r300->cmask_clear.size : 0) +
384 r300_get_num_cs_end_dwords(r300);
385
386 /* Reserve CS space. */
387 if (!r300->rws->cs_check_space(&r300->cs, dwords, false)) {
388 r300_flush(&r300->context, PIPE_FLUSH_ASYNC, NULL);
389 }
390
391 /* Emit clear packets. */
392 r300_emit_gpu_flush(r300, r300->gpu_flush.size, r300->gpu_flush.state);
393 r300->gpu_flush.dirty = FALSE;
394
395 if (r300->zmask_clear.dirty) {
396 r300_emit_zmask_clear(r300, r300->zmask_clear.size,
397 r300->zmask_clear.state);
398 r300->zmask_clear.dirty = FALSE;
399 }
400 if (r300->hiz_clear.dirty) {
401 r300_emit_hiz_clear(r300, r300->hiz_clear.size,
402 r300->hiz_clear.state);
403 r300->hiz_clear.dirty = FALSE;
404 }
405 if (r300->cmask_clear.dirty) {
406 r300_emit_cmask_clear(r300, r300->cmask_clear.size,
407 r300->cmask_clear.state);
408 r300->cmask_clear.dirty = FALSE;
409 }
410 } else {
411 assert(0);
412 }
413
414 /* Disable CBZB clear. */
415 if (r300->cbzb_clear) {
416 r300->cbzb_clear = FALSE;
417 hyperz->zb_depthclearvalue = hyperz_dcv;
418 r300_mark_fb_state_dirty(r300, R300_CHANGED_HYPERZ_FLAG);
419 }
420
421 /* Enable fastfill and/or hiz.
422 *
423 * If we cleared zmask/hiz, it's in use now. The Hyper-Z state update
424 * looks if zmask/hiz is in use and programs hardware accordingly. */
425 if (r300->zmask_in_use || r300->hiz_in_use) {
426 r300_mark_atom_dirty(r300, &r300->hyperz_state);
427 }
428 }
429
430 /* Clear a region of a color surface to a constant value. */
r300_clear_render_target(struct pipe_context * pipe,struct pipe_surface * dst,const union pipe_color_union * color,unsigned dstx,unsigned dsty,unsigned width,unsigned height,bool render_condition_enabled)431 static void r300_clear_render_target(struct pipe_context *pipe,
432 struct pipe_surface *dst,
433 const union pipe_color_union *color,
434 unsigned dstx, unsigned dsty,
435 unsigned width, unsigned height,
436 bool render_condition_enabled)
437 {
438 struct r300_context *r300 = r300_context(pipe);
439
440 r300_blitter_begin(r300, R300_CLEAR_SURFACE |
441 (render_condition_enabled ? 0 : R300_IGNORE_RENDER_COND));
442 util_blitter_clear_render_target(r300->blitter, dst, color,
443 dstx, dsty, width, height);
444 r300_blitter_end(r300);
445 }
446
447 /* Clear a region of a depth stencil surface. */
r300_clear_depth_stencil(struct pipe_context * pipe,struct pipe_surface * dst,unsigned clear_flags,double depth,unsigned stencil,unsigned dstx,unsigned dsty,unsigned width,unsigned height,bool render_condition_enabled)448 static void r300_clear_depth_stencil(struct pipe_context *pipe,
449 struct pipe_surface *dst,
450 unsigned clear_flags,
451 double depth,
452 unsigned stencil,
453 unsigned dstx, unsigned dsty,
454 unsigned width, unsigned height,
455 bool render_condition_enabled)
456 {
457 struct r300_context *r300 = r300_context(pipe);
458 struct pipe_framebuffer_state *fb =
459 (struct pipe_framebuffer_state*)r300->fb_state.state;
460
461 if (r300->zmask_in_use && !r300->locked_zbuffer) {
462 if (fb->zsbuf->texture == dst->texture) {
463 r300_decompress_zmask(r300);
464 }
465 }
466
467 /* XXX Do not decompress ZMask of the currently-set zbuffer. */
468 r300_blitter_begin(r300, R300_CLEAR_SURFACE |
469 (render_condition_enabled ? 0 : R300_IGNORE_RENDER_COND));
470 util_blitter_clear_depth_stencil(r300->blitter, dst, clear_flags, depth, stencil,
471 dstx, dsty, width, height);
472 r300_blitter_end(r300);
473 }
474
r300_decompress_zmask(struct r300_context * r300)475 void r300_decompress_zmask(struct r300_context *r300)
476 {
477 struct pipe_framebuffer_state *fb =
478 (struct pipe_framebuffer_state*)r300->fb_state.state;
479
480 if (!r300->zmask_in_use || r300->locked_zbuffer)
481 return;
482
483 r300->zmask_decompress = TRUE;
484 r300_mark_atom_dirty(r300, &r300->hyperz_state);
485
486 r300_blitter_begin(r300, R300_DECOMPRESS);
487 util_blitter_custom_clear_depth(r300->blitter, fb->width, fb->height, 0,
488 r300->dsa_decompress_zmask);
489 r300_blitter_end(r300);
490
491 r300->zmask_decompress = FALSE;
492 r300->zmask_in_use = FALSE;
493 r300_mark_atom_dirty(r300, &r300->hyperz_state);
494 }
495
r300_decompress_zmask_locked_unsafe(struct r300_context * r300)496 void r300_decompress_zmask_locked_unsafe(struct r300_context *r300)
497 {
498 struct pipe_framebuffer_state fb;
499
500 memset(&fb, 0, sizeof(fb));
501 fb.width = r300->locked_zbuffer->width;
502 fb.height = r300->locked_zbuffer->height;
503 fb.zsbuf = r300->locked_zbuffer;
504
505 r300->context.set_framebuffer_state(&r300->context, &fb);
506 r300_decompress_zmask(r300);
507 }
508
r300_decompress_zmask_locked(struct r300_context * r300)509 void r300_decompress_zmask_locked(struct r300_context *r300)
510 {
511 struct pipe_framebuffer_state saved_fb;
512
513 memset(&saved_fb, 0, sizeof(saved_fb));
514 util_copy_framebuffer_state(&saved_fb, r300->fb_state.state);
515 r300_decompress_zmask_locked_unsafe(r300);
516 r300->context.set_framebuffer_state(&r300->context, &saved_fb);
517 util_unreference_framebuffer_state(&saved_fb);
518
519 pipe_surface_reference(&r300->locked_zbuffer, NULL);
520 }
521
r300_is_blit_supported(enum pipe_format format)522 bool r300_is_blit_supported(enum pipe_format format)
523 {
524 const struct util_format_description *desc =
525 util_format_description(format);
526
527 return desc->layout == UTIL_FORMAT_LAYOUT_PLAIN ||
528 desc->layout == UTIL_FORMAT_LAYOUT_S3TC ||
529 desc->layout == UTIL_FORMAT_LAYOUT_RGTC;
530 }
531
532 /* Copy a block of pixels from one surface to another. */
r300_resource_copy_region(struct pipe_context * pipe,struct pipe_resource * dst,unsigned dst_level,unsigned dstx,unsigned dsty,unsigned dstz,struct pipe_resource * src,unsigned src_level,const struct pipe_box * src_box)533 static void r300_resource_copy_region(struct pipe_context *pipe,
534 struct pipe_resource *dst,
535 unsigned dst_level,
536 unsigned dstx, unsigned dsty, unsigned dstz,
537 struct pipe_resource *src,
538 unsigned src_level,
539 const struct pipe_box *src_box)
540 {
541 struct pipe_screen *screen = pipe->screen;
542 struct r300_context *r300 = r300_context(pipe);
543 struct pipe_framebuffer_state *fb =
544 (struct pipe_framebuffer_state*)r300->fb_state.state;
545 unsigned src_width0 = r300_resource(src)->tex.width0;
546 unsigned src_height0 = r300_resource(src)->tex.height0;
547 unsigned dst_width0 = r300_resource(dst)->tex.width0;
548 unsigned dst_height0 = r300_resource(dst)->tex.height0;
549 unsigned layout;
550 struct pipe_box box, dstbox;
551 struct pipe_sampler_view src_templ, *src_view;
552 struct pipe_surface dst_templ, *dst_view;
553
554 /* Fallback for buffers. */
555 if ((dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) ||
556 !r300_is_blit_supported(dst->format)) {
557 util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
558 src, src_level, src_box);
559 return;
560 }
561
562 /* Can't read MSAA textures. */
563 if (src->nr_samples > 1 || dst->nr_samples > 1) {
564 return;
565 }
566
567 /* The code below changes the texture format so that the copy can be done
568 * on hardware. E.g. depth-stencil surfaces are copied as RGBA
569 * colorbuffers. */
570
571 util_blitter_default_dst_texture(&dst_templ, dst, dst_level, dstz);
572 util_blitter_default_src_texture(r300->blitter, &src_templ, src, src_level);
573
574 layout = util_format_description(dst_templ.format)->layout;
575
576 /* Handle non-renderable plain formats. */
577 if (layout == UTIL_FORMAT_LAYOUT_PLAIN &&
578 (!screen->is_format_supported(screen, src_templ.format, src->target,
579 src->nr_samples, src->nr_storage_samples,
580 PIPE_BIND_SAMPLER_VIEW) ||
581 !screen->is_format_supported(screen, dst_templ.format, dst->target,
582 dst->nr_samples, dst->nr_storage_samples,
583 PIPE_BIND_RENDER_TARGET))) {
584 switch (util_format_get_blocksize(dst_templ.format)) {
585 case 1:
586 dst_templ.format = PIPE_FORMAT_I8_UNORM;
587 break;
588 case 2:
589 dst_templ.format = PIPE_FORMAT_B4G4R4A4_UNORM;
590 break;
591 case 4:
592 dst_templ.format = PIPE_FORMAT_B8G8R8A8_UNORM;
593 break;
594 case 8:
595 dst_templ.format = PIPE_FORMAT_R16G16B16A16_UNORM;
596 break;
597 default:
598 debug_printf("r300: copy_region: Unhandled format: %s. Falling back to software.\n"
599 "r300: copy_region: Software fallback doesn't work for tiled textures.\n",
600 util_format_short_name(dst_templ.format));
601 }
602 src_templ.format = dst_templ.format;
603 }
604
605 /* Handle compressed formats. */
606 if (layout == UTIL_FORMAT_LAYOUT_S3TC ||
607 layout == UTIL_FORMAT_LAYOUT_RGTC) {
608 assert(src_templ.format == dst_templ.format);
609
610 box = *src_box;
611 src_box = &box;
612
613 dst_width0 = align(dst_width0, 4);
614 dst_height0 = align(dst_height0, 4);
615 src_width0 = align(src_width0, 4);
616 src_height0 = align(src_height0, 4);
617 box.width = align(box.width, 4);
618 box.height = align(box.height, 4);
619
620 switch (util_format_get_blocksize(dst_templ.format)) {
621 case 8:
622 /* one 4x4 pixel block has 8 bytes.
623 * we set 1 pixel = 4 bytes ===> 1 block corrensponds to 2 pixels. */
624 dst_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM;
625 dst_width0 = dst_width0 / 2;
626 src_width0 = src_width0 / 2;
627 dstx /= 2;
628 box.x /= 2;
629 box.width /= 2;
630 break;
631 case 16:
632 /* one 4x4 pixel block has 16 bytes.
633 * we set 1 pixel = 4 bytes ===> 1 block corresponds to 4 pixels. */
634 dst_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM;
635 break;
636 }
637 src_templ.format = dst_templ.format;
638
639 dst_height0 = dst_height0 / 4;
640 src_height0 = src_height0 / 4;
641 dsty /= 4;
642 box.y /= 4;
643 box.height /= 4;
644 }
645
646 /* Fallback for textures. */
647 if (!screen->is_format_supported(screen, dst_templ.format,
648 dst->target, dst->nr_samples,
649 dst->nr_storage_samples,
650 PIPE_BIND_RENDER_TARGET) ||
651 !screen->is_format_supported(screen, src_templ.format,
652 src->target, src->nr_samples,
653 src->nr_storage_samples,
654 PIPE_BIND_SAMPLER_VIEW)) {
655 assert(0 && "this shouldn't happen, update r300_is_blit_supported");
656 util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
657 src, src_level, src_box);
658 return;
659 }
660
661 /* Decompress ZMASK. */
662 if (r300->zmask_in_use && !r300->locked_zbuffer) {
663 if (fb->zsbuf->texture == src ||
664 fb->zsbuf->texture == dst) {
665 r300_decompress_zmask(r300);
666 }
667 }
668
669 dst_view = r300_create_surface_custom(pipe, dst, &dst_templ, dst_width0, dst_height0);
670 src_view = r300_create_sampler_view_custom(pipe, src, &src_templ, src_width0, src_height0);
671
672 u_box_3d(dstx, dsty, dstz, abs(src_box->width), abs(src_box->height),
673 abs(src_box->depth), &dstbox);
674
675 r300_blitter_begin(r300, R300_COPY);
676 util_blitter_blit_generic(r300->blitter, dst_view, &dstbox,
677 src_view, src_box, src_width0, src_height0,
678 PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL,
679 FALSE, FALSE);
680 r300_blitter_end(r300);
681
682 pipe_surface_reference(&dst_view, NULL);
683 pipe_sampler_view_reference(&src_view, NULL);
684 }
685
r300_is_simple_msaa_resolve(const struct pipe_blit_info * info)686 static boolean r300_is_simple_msaa_resolve(const struct pipe_blit_info *info)
687 {
688 unsigned dst_width = u_minify(info->dst.resource->width0, info->dst.level);
689 unsigned dst_height = u_minify(info->dst.resource->height0, info->dst.level);
690
691 return info->src.resource->nr_samples > 1 &&
692 info->dst.resource->nr_samples <= 1 &&
693 info->dst.resource->format == info->src.resource->format &&
694 info->dst.resource->format == info->dst.format &&
695 info->src.resource->format == info->src.format &&
696 !info->scissor_enable &&
697 info->mask == PIPE_MASK_RGBA &&
698 dst_width == info->src.resource->width0 &&
699 dst_height == info->src.resource->height0 &&
700 info->dst.box.x == 0 &&
701 info->dst.box.y == 0 &&
702 info->dst.box.width == dst_width &&
703 info->dst.box.height == dst_height &&
704 info->src.box.x == 0 &&
705 info->src.box.y == 0 &&
706 info->src.box.width == dst_width &&
707 info->src.box.height == dst_height &&
708 (r300_resource(info->dst.resource)->tex.microtile != RADEON_LAYOUT_LINEAR ||
709 r300_resource(info->dst.resource)->tex.macrotile[info->dst.level] != RADEON_LAYOUT_LINEAR);
710 }
711
r300_simple_msaa_resolve(struct pipe_context * pipe,struct pipe_resource * dst,unsigned dst_level,unsigned dst_layer,struct pipe_resource * src,enum pipe_format format)712 static void r300_simple_msaa_resolve(struct pipe_context *pipe,
713 struct pipe_resource *dst,
714 unsigned dst_level,
715 unsigned dst_layer,
716 struct pipe_resource *src,
717 enum pipe_format format)
718 {
719 struct r300_context *r300 = r300_context(pipe);
720 struct r300_surface *srcsurf, *dstsurf;
721 struct pipe_surface surf_tmpl;
722 struct r300_aa_state *aa = (struct r300_aa_state*)r300->aa_state.state;
723
724 memset(&surf_tmpl, 0, sizeof(surf_tmpl));
725 surf_tmpl.format = format;
726 srcsurf = r300_surface(pipe->create_surface(pipe, src, &surf_tmpl));
727
728 surf_tmpl.format = format;
729 surf_tmpl.u.tex.level = dst_level;
730 surf_tmpl.u.tex.first_layer =
731 surf_tmpl.u.tex.last_layer = dst_layer;
732 dstsurf = r300_surface(pipe->create_surface(pipe, dst, &surf_tmpl));
733
734 /* COLORPITCH should contain the tiling info of the resolve buffer.
735 * The tiling of the AA buffer isn't programmable anyway. */
736 srcsurf->pitch &= ~(R300_COLOR_TILE(1) | R300_COLOR_MICROTILE(3));
737 srcsurf->pitch |= dstsurf->pitch & (R300_COLOR_TILE(1) | R300_COLOR_MICROTILE(3));
738
739 /* Enable AA resolve. */
740 aa->dest = dstsurf;
741 r300->aa_state.size = 8;
742 r300_mark_atom_dirty(r300, &r300->aa_state);
743
744 /* Resolve the surface. */
745 r300_blitter_begin(r300, R300_CLEAR_SURFACE);
746 util_blitter_custom_color(r300->blitter, &srcsurf->base, NULL);
747 r300_blitter_end(r300);
748
749 /* Disable AA resolve. */
750 aa->dest = NULL;
751 r300->aa_state.size = 4;
752 r300_mark_atom_dirty(r300, &r300->aa_state);
753
754 pipe_surface_reference((struct pipe_surface**)&srcsurf, NULL);
755 pipe_surface_reference((struct pipe_surface**)&dstsurf, NULL);
756 }
757
r300_msaa_resolve(struct pipe_context * pipe,const struct pipe_blit_info * info)758 static void r300_msaa_resolve(struct pipe_context *pipe,
759 const struct pipe_blit_info *info)
760 {
761 struct r300_context *r300 = r300_context(pipe);
762 struct pipe_screen *screen = pipe->screen;
763 struct pipe_resource *tmp, templ;
764 struct pipe_blit_info blit;
765
766 assert(info->src.level == 0);
767 assert(info->src.box.z == 0);
768 assert(info->src.box.depth == 1);
769 assert(info->dst.box.depth == 1);
770
771 if (r300_is_simple_msaa_resolve(info)) {
772 r300_simple_msaa_resolve(pipe, info->dst.resource, info->dst.level,
773 info->dst.box.z, info->src.resource,
774 info->src.format);
775 return;
776 }
777
778 /* resolve into a temporary texture, then blit */
779 memset(&templ, 0, sizeof(templ));
780 templ.target = PIPE_TEXTURE_2D;
781 templ.format = info->src.resource->format;
782 templ.width0 = info->src.resource->width0;
783 templ.height0 = info->src.resource->height0;
784 templ.depth0 = 1;
785 templ.array_size = 1;
786 templ.usage = PIPE_USAGE_DEFAULT;
787 templ.flags = R300_RESOURCE_FORCE_MICROTILING;
788
789 tmp = screen->resource_create(screen, &templ);
790
791 /* resolve */
792 r300_simple_msaa_resolve(pipe, tmp, 0, 0, info->src.resource,
793 info->src.format);
794
795 /* blit */
796 blit = *info;
797 blit.src.resource = tmp;
798 blit.src.box.z = 0;
799
800 r300_blitter_begin(r300, R300_BLIT | R300_IGNORE_RENDER_COND);
801 util_blitter_blit(r300->blitter, &blit);
802 r300_blitter_end(r300);
803
804 pipe_resource_reference(&tmp, NULL);
805 }
806
r300_blit(struct pipe_context * pipe,const struct pipe_blit_info * blit)807 static void r300_blit(struct pipe_context *pipe,
808 const struct pipe_blit_info *blit)
809 {
810 struct r300_context *r300 = r300_context(pipe);
811 struct pipe_framebuffer_state *fb =
812 (struct pipe_framebuffer_state*)r300->fb_state.state;
813 struct pipe_blit_info info = *blit;
814
815 /* The driver supports sRGB textures but not framebuffers. Blitting
816 * from sRGB to sRGB should be the same as blitting from linear
817 * to linear, so use that, This avoids incorrect linearization.
818 */
819 if (util_format_is_srgb(info.src.format)) {
820 info.src.format = util_format_linear(info.src.format);
821 info.dst.format = util_format_linear(info.dst.format);
822 }
823
824 /* MSAA resolve. */
825 if (info.src.resource->nr_samples > 1 &&
826 !util_format_is_depth_or_stencil(info.src.resource->format)) {
827 r300_msaa_resolve(pipe, &info);
828 return;
829 }
830
831 /* Can't read MSAA textures. */
832 if (info.src.resource->nr_samples > 1) {
833 return;
834 }
835
836 /* Blit a combined depth-stencil resource as color.
837 * S8Z24 is the only supported stencil format. */
838 if ((info.mask & PIPE_MASK_S) &&
839 info.src.format == PIPE_FORMAT_S8_UINT_Z24_UNORM &&
840 info.dst.format == PIPE_FORMAT_S8_UINT_Z24_UNORM) {
841 if (info.dst.resource->nr_samples > 1) {
842 /* Cannot do that with MSAA buffers. */
843 info.mask &= ~PIPE_MASK_S;
844 if (!(info.mask & PIPE_MASK_Z)) {
845 return;
846 }
847 } else {
848 /* Single-sample buffer. */
849 info.src.format = PIPE_FORMAT_B8G8R8A8_UNORM;
850 info.dst.format = PIPE_FORMAT_B8G8R8A8_UNORM;
851 if (info.mask & PIPE_MASK_Z) {
852 info.mask = PIPE_MASK_RGBA; /* depth+stencil */
853 } else {
854 info.mask = PIPE_MASK_B; /* stencil only */
855 }
856 }
857 }
858
859 /* Decompress ZMASK. */
860 if (r300->zmask_in_use && !r300->locked_zbuffer) {
861 if (fb->zsbuf->texture == info.src.resource ||
862 fb->zsbuf->texture == info.dst.resource) {
863 r300_decompress_zmask(r300);
864 }
865 }
866
867 r300_blitter_begin(r300, R300_BLIT |
868 (info.render_condition_enable ? 0 : R300_IGNORE_RENDER_COND));
869 util_blitter_blit(r300->blitter, &info);
870 r300_blitter_end(r300);
871 }
872
r300_flush_resource(struct pipe_context * ctx,struct pipe_resource * resource)873 static void r300_flush_resource(struct pipe_context *ctx,
874 struct pipe_resource *resource)
875 {
876 }
877
r300_init_blit_functions(struct r300_context * r300)878 void r300_init_blit_functions(struct r300_context *r300)
879 {
880 r300->context.clear = r300_clear;
881 r300->context.clear_render_target = r300_clear_render_target;
882 r300->context.clear_depth_stencil = r300_clear_depth_stencil;
883 r300->context.resource_copy_region = r300_resource_copy_region;
884 r300->context.blit = r300_blit;
885 r300->context.flush_resource = r300_flush_resource;
886 }
887