freedreno_resource.c revision 93905a8df1d982d171ee690f9ec73f90f00fa49f
1/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
2
3/*
4 * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 * Authors:
26 *    Rob Clark <robclark@freedesktop.org>
27 */
28
29#include "util/u_format.h"
30#include "util/u_format_rgtc.h"
31#include "util/u_format_zs.h"
32#include "util/u_inlines.h"
33#include "util/u_transfer.h"
34#include "util/u_string.h"
35#include "util/u_surface.h"
36
37#include "freedreno_resource.h"
38#include "freedreno_screen.h"
39#include "freedreno_surface.h"
40#include "freedreno_context.h"
41#include "freedreno_query_hw.h"
42#include "freedreno_util.h"
43
44#include <errno.h>
45
46
47static bool
48pending(struct fd_resource *rsc, enum fd_resource_status status)
49{
50	return (rsc->status & status) ||
51		(rsc->stencil && (rsc->stencil->status & status));
52}
53
54static void
55fd_invalidate_resource(struct fd_context *ctx, struct pipe_resource *prsc)
56{
57	int i;
58
59	/* Go through the entire state and see if the resource is bound
60	 * anywhere. If it is, mark the relevant state as dirty. This is called on
61	 * realloc_bo.
62	 */
63
64	/* Constbufs */
65	for (i = 1; i < PIPE_MAX_CONSTANT_BUFFERS && !(ctx->dirty & FD_DIRTY_CONSTBUF); i++) {
66		if (ctx->constbuf[PIPE_SHADER_VERTEX].cb[i].buffer == prsc)
67			ctx->dirty |= FD_DIRTY_CONSTBUF;
68		if (ctx->constbuf[PIPE_SHADER_FRAGMENT].cb[i].buffer == prsc)
69			ctx->dirty |= FD_DIRTY_CONSTBUF;
70	}
71
72	/* VBOs */
73	for (i = 0; i < ctx->vtx.vertexbuf.count && !(ctx->dirty & FD_DIRTY_VTXBUF); i++) {
74		if (ctx->vtx.vertexbuf.vb[i].buffer == prsc)
75			ctx->dirty |= FD_DIRTY_VTXBUF;
76	}
77
78	/* Index buffer */
79	if (ctx->indexbuf.buffer == prsc)
80		ctx->dirty |= FD_DIRTY_INDEXBUF;
81
82	/* Textures */
83	for (i = 0; i < ctx->verttex.num_textures && !(ctx->dirty & FD_DIRTY_VERTTEX); i++) {
84		if (ctx->verttex.textures[i] && (ctx->verttex.textures[i]->texture == prsc))
85			ctx->dirty |= FD_DIRTY_VERTTEX;
86	}
87	for (i = 0; i < ctx->fragtex.num_textures && !(ctx->dirty & FD_DIRTY_FRAGTEX); i++) {
88		if (ctx->fragtex.textures[i] && (ctx->fragtex.textures[i]->texture == prsc))
89			ctx->dirty |= FD_DIRTY_FRAGTEX;
90	}
91}
92
93static void
94realloc_bo(struct fd_resource *rsc, uint32_t size)
95{
96	struct fd_screen *screen = fd_screen(rsc->base.b.screen);
97	uint32_t flags = DRM_FREEDRENO_GEM_CACHE_WCOMBINE |
98			DRM_FREEDRENO_GEM_TYPE_KMEM; /* TODO */
99
100	/* if we start using things other than write-combine,
101	 * be sure to check for PIPE_RESOURCE_FLAG_MAP_COHERENT
102	 */
103
104	if (rsc->bo)
105		fd_bo_del(rsc->bo);
106
107	rsc->bo = fd_bo_new(screen->dev, size, flags);
108	rsc->timestamp = 0;
109	rsc->status = 0;
110	rsc->pending_ctx = NULL;
111	list_delinit(&rsc->list);
112	util_range_set_empty(&rsc->valid_buffer_range);
113}
114
115static unsigned
116fd_resource_layer_offset(struct fd_resource *rsc,
117						 struct fd_resource_slice *slice,
118						 unsigned layer)
119{
120	if (rsc->layer_first)
121		return layer * rsc->layer_size;
122	else
123		return layer * slice->size0;
124}
125
126static void
127fd_resource_flush_z32s8(struct fd_transfer *trans, const struct pipe_box *box)
128{
129	struct fd_resource *rsc = fd_resource(trans->base.resource);
130	struct fd_resource_slice *slice = fd_resource_slice(rsc, trans->base.level);
131	struct fd_resource_slice *sslice = fd_resource_slice(rsc->stencil, trans->base.level);
132	enum pipe_format format = trans->base.resource->format;
133
134	float *depth = fd_bo_map(rsc->bo) + slice->offset +
135		fd_resource_layer_offset(rsc, slice, trans->base.box.z) +
136		(trans->base.box.y + box->y) * slice->pitch * 4 + (trans->base.box.x + box->x) * 4;
137	uint8_t *stencil = fd_bo_map(rsc->stencil->bo) + sslice->offset +
138		fd_resource_layer_offset(rsc->stencil, sslice, trans->base.box.z) +
139		(trans->base.box.y + box->y) * sslice->pitch + trans->base.box.x + box->x;
140
141	if (format != PIPE_FORMAT_X32_S8X24_UINT)
142		util_format_z32_float_s8x24_uint_unpack_z_float(
143				depth, slice->pitch * 4,
144				trans->staging, trans->base.stride,
145				box->width, box->height);
146
147	util_format_z32_float_s8x24_uint_unpack_s_8uint(
148			stencil, sslice->pitch,
149			trans->staging, trans->base.stride,
150			box->width, box->height);
151}
152
153static void
154fd_resource_flush_rgtc(struct fd_transfer *trans, const struct pipe_box *box)
155{
156	struct fd_resource *rsc = fd_resource(trans->base.resource);
157	struct fd_resource_slice *slice = fd_resource_slice(rsc, trans->base.level);
158	enum pipe_format format = trans->base.resource->format;
159
160	uint8_t *data = fd_bo_map(rsc->bo) + slice->offset +
161		fd_resource_layer_offset(rsc, slice, trans->base.box.z) +
162		((trans->base.box.y + box->y) * slice->pitch +
163		 trans->base.box.x + box->x) * rsc->cpp;
164
165	uint8_t *source = trans->staging +
166		util_format_get_nblocksy(format, box->y) * trans->base.stride +
167		util_format_get_stride(format, box->x);
168
169	switch (format) {
170	case PIPE_FORMAT_RGTC1_UNORM:
171	case PIPE_FORMAT_RGTC1_SNORM:
172	case PIPE_FORMAT_LATC1_UNORM:
173	case PIPE_FORMAT_LATC1_SNORM:
174		util_format_rgtc1_unorm_unpack_rgba_8unorm(
175				data, slice->pitch * rsc->cpp,
176				source, trans->base.stride,
177				box->width, box->height);
178		break;
179	case PIPE_FORMAT_RGTC2_UNORM:
180	case PIPE_FORMAT_RGTC2_SNORM:
181	case PIPE_FORMAT_LATC2_UNORM:
182	case PIPE_FORMAT_LATC2_SNORM:
183		util_format_rgtc2_unorm_unpack_rgba_8unorm(
184				data, slice->pitch * rsc->cpp,
185				source, trans->base.stride,
186				box->width, box->height);
187		break;
188	default:
189		assert(!"Unexpected format\n");
190		break;
191	}
192}
193
194static void
195fd_resource_flush(struct fd_transfer *trans, const struct pipe_box *box)
196{
197	enum pipe_format format = trans->base.resource->format;
198
199	switch (format) {
200	case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
201	case PIPE_FORMAT_X32_S8X24_UINT:
202		fd_resource_flush_z32s8(trans, box);
203		break;
204	case PIPE_FORMAT_RGTC1_UNORM:
205	case PIPE_FORMAT_RGTC1_SNORM:
206	case PIPE_FORMAT_RGTC2_UNORM:
207	case PIPE_FORMAT_RGTC2_SNORM:
208	case PIPE_FORMAT_LATC1_UNORM:
209	case PIPE_FORMAT_LATC1_SNORM:
210	case PIPE_FORMAT_LATC2_UNORM:
211	case PIPE_FORMAT_LATC2_SNORM:
212		fd_resource_flush_rgtc(trans, box);
213		break;
214	default:
215		assert(!"Unexpected staging transfer type");
216		break;
217	}
218}
219
220static void fd_resource_transfer_flush_region(struct pipe_context *pctx,
221		struct pipe_transfer *ptrans,
222		const struct pipe_box *box)
223{
224	struct fd_resource *rsc = fd_resource(ptrans->resource);
225	struct fd_transfer *trans = fd_transfer(ptrans);
226
227	if (ptrans->resource->target == PIPE_BUFFER)
228		util_range_add(&rsc->valid_buffer_range,
229					   ptrans->box.x + box->x,
230					   ptrans->box.x + box->x + box->width);
231
232	if (trans->staging)
233		fd_resource_flush(trans, box);
234}
235
236static void
237fd_resource_transfer_unmap(struct pipe_context *pctx,
238		struct pipe_transfer *ptrans)
239{
240	struct fd_context *ctx = fd_context(pctx);
241	struct fd_resource *rsc = fd_resource(ptrans->resource);
242	struct fd_transfer *trans = fd_transfer(ptrans);
243
244	if (trans->staging && !(ptrans->usage & PIPE_TRANSFER_FLUSH_EXPLICIT)) {
245		struct pipe_box box;
246		u_box_2d(0, 0, ptrans->box.width, ptrans->box.height, &box);
247		fd_resource_flush(trans, &box);
248	}
249
250	if (!(ptrans->usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
251		fd_bo_cpu_fini(rsc->bo);
252		if (rsc->stencil)
253			fd_bo_cpu_fini(rsc->stencil->bo);
254	}
255
256	util_range_add(&rsc->valid_buffer_range,
257				   ptrans->box.x,
258				   ptrans->box.x + ptrans->box.width);
259
260	pipe_resource_reference(&ptrans->resource, NULL);
261	util_slab_free(&ctx->transfer_pool, ptrans);
262
263	if (trans->staging)
264		free(trans->staging);
265}
266
267static void *
268fd_resource_transfer_map(struct pipe_context *pctx,
269		struct pipe_resource *prsc,
270		unsigned level, unsigned usage,
271		const struct pipe_box *box,
272		struct pipe_transfer **pptrans)
273{
274	struct fd_context *ctx = fd_context(pctx);
275	struct fd_resource *rsc = fd_resource(prsc);
276	struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
277	struct fd_transfer *trans;
278	struct pipe_transfer *ptrans;
279	enum pipe_format format = prsc->format;
280	uint32_t op = 0;
281	uint32_t offset;
282	char *buf;
283	int ret = 0;
284
285	DBG("prsc=%p, level=%u, usage=%x, box=%dx%d+%d,%d", prsc, level, usage,
286		box->width, box->height, box->x, box->y);
287
288	ptrans = util_slab_alloc(&ctx->transfer_pool);
289	if (!ptrans)
290		return NULL;
291
292	/* util_slab_alloc() doesn't zero: */
293	trans = fd_transfer(ptrans);
294	memset(trans, 0, sizeof(*trans));
295
296	pipe_resource_reference(&ptrans->resource, prsc);
297	ptrans->level = level;
298	ptrans->usage = usage;
299	ptrans->box = *box;
300	ptrans->stride = util_format_get_nblocksx(format, slice->pitch) * rsc->cpp;
301	ptrans->layer_stride = slice->size0;
302
303	if (usage & PIPE_TRANSFER_READ)
304		op |= DRM_FREEDRENO_PREP_READ;
305
306	if (usage & PIPE_TRANSFER_WRITE)
307		op |= DRM_FREEDRENO_PREP_WRITE;
308
309	if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
310		realloc_bo(rsc, fd_bo_size(rsc->bo));
311		if (rsc->stencil)
312			realloc_bo(rsc->stencil, fd_bo_size(rsc->stencil->bo));
313		fd_invalidate_resource(ctx, prsc);
314	} else if ((usage & PIPE_TRANSFER_WRITE) &&
315			   prsc->target == PIPE_BUFFER &&
316			   !util_ranges_intersect(&rsc->valid_buffer_range,
317									  box->x, box->x + box->width)) {
318		/* We are trying to write to a previously uninitialized range. No need
319		 * to wait.
320		 */
321	} else if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
322		/* If the GPU is writing to the resource, or if it is reading from the
323		 * resource and we're trying to write to it, flush the renders.
324		 */
325		if (((ptrans->usage & PIPE_TRANSFER_WRITE) &&
326					pending(rsc, FD_PENDING_READ | FD_PENDING_WRITE)) ||
327				pending(rsc, FD_PENDING_WRITE))
328			fd_context_render(pctx);
329
330		/* The GPU keeps track of how the various bo's are being used, and
331		 * will wait if necessary for the proper operation to have
332		 * completed.
333		 */
334		ret = fd_bo_cpu_prep(rsc->bo, ctx->screen->pipe, op);
335		if (ret)
336			goto fail;
337	}
338
339	buf = fd_bo_map(rsc->bo);
340	if (!buf) {
341		fd_resource_transfer_unmap(pctx, ptrans);
342		return NULL;
343	}
344
345	offset = slice->offset +
346		box->y / util_format_get_blockheight(format) * ptrans->stride +
347		box->x / util_format_get_blockwidth(format) * rsc->cpp +
348		fd_resource_layer_offset(rsc, slice, box->z);
349
350	if (prsc->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT ||
351		prsc->format == PIPE_FORMAT_X32_S8X24_UINT) {
352		assert(trans->base.box.depth == 1);
353
354		trans->base.stride = trans->base.box.width * rsc->cpp * 2;
355		trans->staging = malloc(trans->base.stride * trans->base.box.height);
356		if (!trans->staging)
357			goto fail;
358
359		/* if we're not discarding the whole range (or resource), we must copy
360		 * the real data in.
361		 */
362		if (!(usage & (PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE |
363					   PIPE_TRANSFER_DISCARD_RANGE))) {
364			struct fd_resource_slice *sslice =
365				fd_resource_slice(rsc->stencil, level);
366			void *sbuf = fd_bo_map(rsc->stencil->bo);
367			if (!sbuf)
368				goto fail;
369
370			float *depth = (float *)(buf + slice->offset +
371				fd_resource_layer_offset(rsc, slice, box->z) +
372				box->y * slice->pitch * 4 + box->x * 4);
373			uint8_t *stencil = sbuf + sslice->offset +
374				fd_resource_layer_offset(rsc->stencil, sslice, box->z) +
375				box->y * sslice->pitch + box->x;
376
377			if (format != PIPE_FORMAT_X32_S8X24_UINT)
378				util_format_z32_float_s8x24_uint_pack_z_float(
379						trans->staging, trans->base.stride,
380						depth, slice->pitch * 4,
381						box->width, box->height);
382
383			util_format_z32_float_s8x24_uint_pack_s_8uint(
384					trans->staging, trans->base.stride,
385					stencil, sslice->pitch,
386					box->width, box->height);
387		}
388
389		buf = trans->staging;
390		offset = 0;
391	} else if (rsc->internal_format != format &&
392			   util_format_description(format)->layout == UTIL_FORMAT_LAYOUT_RGTC) {
393		assert(trans->base.box.depth == 1);
394
395		trans->base.stride = util_format_get_stride(
396				format, trans->base.box.width);
397		trans->staging = malloc(
398				util_format_get_2d_size(format, trans->base.stride,
399										trans->base.box.height));
400		if (!trans->staging)
401			goto fail;
402
403		/* if we're not discarding the whole range (or resource), we must copy
404		 * the real data in.
405		 */
406		if (!(usage & (PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE |
407					   PIPE_TRANSFER_DISCARD_RANGE))) {
408			uint8_t *rgba8 = (uint8_t *)buf + slice->offset +
409				fd_resource_layer_offset(rsc, slice, box->z) +
410				box->y * slice->pitch * rsc->cpp + box->x * rsc->cpp;
411
412			switch (format) {
413			case PIPE_FORMAT_RGTC1_UNORM:
414			case PIPE_FORMAT_RGTC1_SNORM:
415			case PIPE_FORMAT_LATC1_UNORM:
416			case PIPE_FORMAT_LATC1_SNORM:
417				util_format_rgtc1_unorm_pack_rgba_8unorm(
418					trans->staging, trans->base.stride,
419					rgba8, slice->pitch * rsc->cpp,
420					box->width, box->height);
421				break;
422			case PIPE_FORMAT_RGTC2_UNORM:
423			case PIPE_FORMAT_RGTC2_SNORM:
424			case PIPE_FORMAT_LATC2_UNORM:
425			case PIPE_FORMAT_LATC2_SNORM:
426				util_format_rgtc2_unorm_pack_rgba_8unorm(
427					trans->staging, trans->base.stride,
428					rgba8, slice->pitch * rsc->cpp,
429					box->width, box->height);
430				break;
431			default:
432				assert(!"Unexpected format");
433				break;
434			}
435		}
436
437		buf = trans->staging;
438		offset = 0;
439	}
440
441	*pptrans = ptrans;
442
443	return buf + offset;
444
445fail:
446	fd_resource_transfer_unmap(pctx, ptrans);
447	return NULL;
448}
449
450static void
451fd_resource_destroy(struct pipe_screen *pscreen,
452		struct pipe_resource *prsc)
453{
454	struct fd_resource *rsc = fd_resource(prsc);
455	if (rsc->bo)
456		fd_bo_del(rsc->bo);
457	list_delinit(&rsc->list);
458	util_range_destroy(&rsc->valid_buffer_range);
459	FREE(rsc);
460}
461
462static boolean
463fd_resource_get_handle(struct pipe_screen *pscreen,
464		struct pipe_resource *prsc,
465		struct winsys_handle *handle)
466{
467	struct fd_resource *rsc = fd_resource(prsc);
468
469	return fd_screen_bo_get_handle(pscreen, rsc->bo,
470			rsc->slices[0].pitch * rsc->cpp, handle);
471}
472
473
474static const struct u_resource_vtbl fd_resource_vtbl = {
475		.resource_get_handle      = fd_resource_get_handle,
476		.resource_destroy         = fd_resource_destroy,
477		.transfer_map             = fd_resource_transfer_map,
478		.transfer_flush_region    = fd_resource_transfer_flush_region,
479		.transfer_unmap           = fd_resource_transfer_unmap,
480		.transfer_inline_write    = u_default_transfer_inline_write,
481};
482
483static uint32_t
484setup_slices(struct fd_resource *rsc, uint32_t alignment, enum pipe_format format)
485{
486	struct pipe_resource *prsc = &rsc->base.b;
487	enum util_format_layout layout = util_format_description(format)->layout;
488	uint32_t level, size = 0;
489	uint32_t width = prsc->width0;
490	uint32_t height = prsc->height0;
491	uint32_t depth = prsc->depth0;
492	/* in layer_first layout, the level (slice) contains just one
493	 * layer (since in fact the layer contains the slices)
494	 */
495	uint32_t layers_in_level = rsc->layer_first ? 1 : prsc->array_size;
496
497	for (level = 0; level <= prsc->last_level; level++) {
498		struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
499		uint32_t blocks;
500
501		if (layout == UTIL_FORMAT_LAYOUT_ASTC)
502			slice->pitch = width =
503				util_align_npot(width, 32 * util_format_get_blockwidth(format));
504		else
505			slice->pitch = width = align(width, 32);
506		slice->offset = size;
507		blocks = util_format_get_nblocks(format, width, height);
508		/* 1d array and 2d array textures must all have the same layer size
509		 * for each miplevel on a3xx. 3d textures can have different layer
510		 * sizes for high levels, but the hw auto-sizer is buggy (or at least
511		 * different than what this code does), so as soon as the layer size
512		 * range gets into range, we stop reducing it.
513		 */
514		if (prsc->target == PIPE_TEXTURE_3D && (
515					level == 1 ||
516					(level > 1 && rsc->slices[level - 1].size0 > 0xf000)))
517			slice->size0 = align(blocks * rsc->cpp, alignment);
518		else if (level == 0 || rsc->layer_first || alignment == 1)
519			slice->size0 = align(blocks * rsc->cpp, alignment);
520		else
521			slice->size0 = rsc->slices[level - 1].size0;
522
523		size += slice->size0 * depth * layers_in_level;
524
525		width = u_minify(width, 1);
526		height = u_minify(height, 1);
527		depth = u_minify(depth, 1);
528	}
529
530	return size;
531}
532
533static uint32_t
534slice_alignment(struct pipe_screen *pscreen, const struct pipe_resource *tmpl)
535{
536	/* on a3xx, 2d array and 3d textures seem to want their
537	 * layers aligned to page boundaries:
538	 */
539	switch (tmpl->target) {
540	case PIPE_TEXTURE_3D:
541	case PIPE_TEXTURE_1D_ARRAY:
542	case PIPE_TEXTURE_2D_ARRAY:
543		return 4096;
544	default:
545		return 1;
546	}
547}
548
549/**
550 * Create a new texture object, using the given template info.
551 */
552static struct pipe_resource *
553fd_resource_create(struct pipe_screen *pscreen,
554		const struct pipe_resource *tmpl)
555{
556	struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
557	struct pipe_resource *prsc = &rsc->base.b;
558	enum pipe_format format = tmpl->format;
559	uint32_t size, alignment;
560
561	DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
562			"nr_samples=%u, usage=%u, bind=%x, flags=%x",
563			tmpl->target, util_format_name(format),
564			tmpl->width0, tmpl->height0, tmpl->depth0,
565			tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
566			tmpl->usage, tmpl->bind, tmpl->flags);
567
568	if (!rsc)
569		return NULL;
570
571	*prsc = *tmpl;
572
573	pipe_reference_init(&prsc->reference, 1);
574	list_inithead(&rsc->list);
575	prsc->screen = pscreen;
576
577	util_range_init(&rsc->valid_buffer_range);
578
579	rsc->base.vtbl = &fd_resource_vtbl;
580
581	if (format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)
582		format = PIPE_FORMAT_Z32_FLOAT;
583	else if (fd_screen(pscreen)->gpu_id < 400 &&
584			 util_format_description(format)->layout == UTIL_FORMAT_LAYOUT_RGTC)
585		format = PIPE_FORMAT_R8G8B8A8_UNORM;
586	rsc->internal_format = format;
587	rsc->cpp = util_format_get_blocksize(format);
588
589	assert(rsc->cpp);
590
591	alignment = slice_alignment(pscreen, tmpl);
592	if (is_a4xx(fd_screen(pscreen))) {
593		switch (tmpl->target) {
594		case PIPE_TEXTURE_3D:
595			rsc->layer_first = false;
596			break;
597		default:
598			rsc->layer_first = true;
599			alignment = 1;
600			break;
601		}
602	}
603
604	size = setup_slices(rsc, alignment, format);
605
606	if (rsc->layer_first) {
607		rsc->layer_size = align(size, 4096);
608		size = rsc->layer_size * prsc->array_size;
609	}
610
611	realloc_bo(rsc, size);
612	if (!rsc->bo)
613		goto fail;
614
615	/* There is no native Z32F_S8 sampling or rendering format, so this must
616	 * be emulated via two separate textures. The depth texture still keeps
617	 * its Z32F_S8 format though, and we also keep a reference to a separate
618	 * S8 texture.
619	 */
620	if (tmpl->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT) {
621		struct pipe_resource stencil = *tmpl;
622		stencil.format = PIPE_FORMAT_S8_UINT;
623		rsc->stencil = fd_resource(fd_resource_create(pscreen, &stencil));
624		if (!rsc->stencil)
625			goto fail;
626	}
627
628	return prsc;
629fail:
630	fd_resource_destroy(pscreen, prsc);
631	return NULL;
632}
633
634/**
635 * Create a texture from a winsys_handle. The handle is often created in
636 * another process by first creating a pipe texture and then calling
637 * resource_get_handle.
638 */
639static struct pipe_resource *
640fd_resource_from_handle(struct pipe_screen *pscreen,
641		const struct pipe_resource *tmpl,
642		struct winsys_handle *handle)
643{
644	struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
645	struct fd_resource_slice *slice = &rsc->slices[0];
646	struct pipe_resource *prsc = &rsc->base.b;
647
648	DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
649			"nr_samples=%u, usage=%u, bind=%x, flags=%x",
650			tmpl->target, util_format_name(tmpl->format),
651			tmpl->width0, tmpl->height0, tmpl->depth0,
652			tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
653			tmpl->usage, tmpl->bind, tmpl->flags);
654
655	if (!rsc)
656		return NULL;
657
658	*prsc = *tmpl;
659
660	pipe_reference_init(&prsc->reference, 1);
661	list_inithead(&rsc->list);
662	prsc->screen = pscreen;
663
664	util_range_init(&rsc->valid_buffer_range);
665
666	rsc->bo = fd_screen_bo_from_handle(pscreen, handle, &slice->pitch);
667	if (!rsc->bo)
668		goto fail;
669
670	rsc->base.vtbl = &fd_resource_vtbl;
671	rsc->cpp = util_format_get_blocksize(tmpl->format);
672	slice->pitch /= rsc->cpp;
673
674	assert(rsc->cpp);
675
676	return prsc;
677
678fail:
679	fd_resource_destroy(pscreen, prsc);
680	return NULL;
681}
682
683static void fd_blitter_pipe_begin(struct fd_context *ctx, bool render_cond);
684static void fd_blitter_pipe_end(struct fd_context *ctx);
685
686/**
687 * _copy_region using pipe (3d engine)
688 */
689static bool
690fd_blitter_pipe_copy_region(struct fd_context *ctx,
691		struct pipe_resource *dst,
692		unsigned dst_level,
693		unsigned dstx, unsigned dsty, unsigned dstz,
694		struct pipe_resource *src,
695		unsigned src_level,
696		const struct pipe_box *src_box)
697{
698	/* not until we allow rendertargets to be buffers */
699	if (dst->target == PIPE_BUFFER || src->target == PIPE_BUFFER)
700		return false;
701
702	if (!util_blitter_is_copy_supported(ctx->blitter, dst, src))
703		return false;
704
705	fd_blitter_pipe_begin(ctx, false);
706	util_blitter_copy_texture(ctx->blitter,
707			dst, dst_level, dstx, dsty, dstz,
708			src, src_level, src_box);
709	fd_blitter_pipe_end(ctx);
710
711	return true;
712}
713
714/**
715 * Copy a block of pixels from one resource to another.
716 * The resource must be of the same format.
717 * Resources with nr_samples > 1 are not allowed.
718 */
719static void
720fd_resource_copy_region(struct pipe_context *pctx,
721		struct pipe_resource *dst,
722		unsigned dst_level,
723		unsigned dstx, unsigned dsty, unsigned dstz,
724		struct pipe_resource *src,
725		unsigned src_level,
726		const struct pipe_box *src_box)
727{
728	struct fd_context *ctx = fd_context(pctx);
729
730	/* TODO if we have 2d core, or other DMA engine that could be used
731	 * for simple copies and reasonably easily synchronized with the 3d
732	 * core, this is where we'd plug it in..
733	 */
734
735	/* try blit on 3d pipe: */
736	if (fd_blitter_pipe_copy_region(ctx,
737			dst, dst_level, dstx, dsty, dstz,
738			src, src_level, src_box))
739		return;
740
741	/* else fallback to pure sw: */
742	util_resource_copy_region(pctx,
743			dst, dst_level, dstx, dsty, dstz,
744			src, src_level, src_box);
745}
746
747bool
748fd_render_condition_check(struct pipe_context *pctx)
749{
750	struct fd_context *ctx = fd_context(pctx);
751
752	if (!ctx->cond_query)
753		return true;
754
755	union pipe_query_result res = { 0 };
756	bool wait =
757		ctx->cond_mode != PIPE_RENDER_COND_NO_WAIT &&
758		ctx->cond_mode != PIPE_RENDER_COND_BY_REGION_NO_WAIT;
759
760	if (pctx->get_query_result(pctx, ctx->cond_query, wait, &res))
761			return (bool)res.u64 != ctx->cond_cond;
762
763	return true;
764}
765
766/**
767 * Optimal hardware path for blitting pixels.
768 * Scaling, format conversion, up- and downsampling (resolve) are allowed.
769 */
770static void
771fd_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
772{
773	struct fd_context *ctx = fd_context(pctx);
774	struct pipe_blit_info info = *blit_info;
775
776	if (info.src.resource->nr_samples > 1 &&
777			info.dst.resource->nr_samples <= 1 &&
778			!util_format_is_depth_or_stencil(info.src.resource->format) &&
779			!util_format_is_pure_integer(info.src.resource->format)) {
780		DBG("color resolve unimplemented");
781		return;
782	}
783
784	if (info.render_condition_enable && !fd_render_condition_check(pctx))
785		return;
786
787	if (util_try_blit_via_copy_region(pctx, &info)) {
788		return; /* done */
789	}
790
791	if (info.mask & PIPE_MASK_S) {
792		DBG("cannot blit stencil, skipping");
793		info.mask &= ~PIPE_MASK_S;
794	}
795
796	if (!util_blitter_is_blit_supported(ctx->blitter, &info)) {
797		DBG("blit unsupported %s -> %s",
798				util_format_short_name(info.src.resource->format),
799				util_format_short_name(info.dst.resource->format));
800		return;
801	}
802
803	fd_blitter_pipe_begin(ctx, info.render_condition_enable);
804	util_blitter_blit(ctx->blitter, &info);
805	fd_blitter_pipe_end(ctx);
806}
807
808static void
809fd_blitter_pipe_begin(struct fd_context *ctx, bool render_cond)
810{
811	util_blitter_save_vertex_buffer_slot(ctx->blitter, ctx->vtx.vertexbuf.vb);
812	util_blitter_save_vertex_elements(ctx->blitter, ctx->vtx.vtx);
813	util_blitter_save_vertex_shader(ctx->blitter, ctx->prog.vp);
814	util_blitter_save_so_targets(ctx->blitter, ctx->streamout.num_targets,
815			ctx->streamout.targets);
816	util_blitter_save_rasterizer(ctx->blitter, ctx->rasterizer);
817	util_blitter_save_viewport(ctx->blitter, &ctx->viewport);
818	util_blitter_save_scissor(ctx->blitter, &ctx->scissor);
819	util_blitter_save_fragment_shader(ctx->blitter, ctx->prog.fp);
820	util_blitter_save_blend(ctx->blitter, ctx->blend);
821	util_blitter_save_depth_stencil_alpha(ctx->blitter, ctx->zsa);
822	util_blitter_save_stencil_ref(ctx->blitter, &ctx->stencil_ref);
823	util_blitter_save_sample_mask(ctx->blitter, ctx->sample_mask);
824	util_blitter_save_framebuffer(ctx->blitter, &ctx->framebuffer);
825	util_blitter_save_fragment_sampler_states(ctx->blitter,
826			ctx->fragtex.num_samplers,
827			(void **)ctx->fragtex.samplers);
828	util_blitter_save_fragment_sampler_views(ctx->blitter,
829			ctx->fragtex.num_textures, ctx->fragtex.textures);
830	if (!render_cond)
831		util_blitter_save_render_condition(ctx->blitter,
832			ctx->cond_query, ctx->cond_cond, ctx->cond_mode);
833
834	fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_BLIT);
835}
836
837static void
838fd_blitter_pipe_end(struct fd_context *ctx)
839{
840	fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_NULL);
841}
842
843static void
844fd_flush_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
845{
846	struct fd_resource *rsc = fd_resource(prsc);
847
848	if (pending(rsc, FD_PENDING_WRITE | FD_PENDING_READ))
849		fd_context_render(pctx);
850}
851
852void
853fd_resource_screen_init(struct pipe_screen *pscreen)
854{
855	pscreen->resource_create = fd_resource_create;
856	pscreen->resource_from_handle = fd_resource_from_handle;
857	pscreen->resource_get_handle = u_resource_get_handle_vtbl;
858	pscreen->resource_destroy = u_resource_destroy_vtbl;
859}
860
861void
862fd_resource_context_init(struct pipe_context *pctx)
863{
864	pctx->transfer_map = u_transfer_map_vtbl;
865	pctx->transfer_flush_region = u_transfer_flush_region_vtbl;
866	pctx->transfer_unmap = u_transfer_unmap_vtbl;
867	pctx->transfer_inline_write = u_transfer_inline_write_vtbl;
868	pctx->create_surface = fd_create_surface;
869	pctx->surface_destroy = fd_surface_destroy;
870	pctx->resource_copy_region = fd_resource_copy_region;
871	pctx->blit = fd_blit;
872	pctx->flush_resource = fd_flush_resource;
873}
874