freedreno_resource.c revision 1ffe77e7bb2486ea74cda077ed2a9622b758395c
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/* XXX this should go away, needed for 'struct winsys_handle' */
47#include "state_tracker/drm_driver.h"
48
49static bool
50pending(struct fd_resource *rsc, enum fd_resource_status status)
51{
52	return (rsc->status & status) ||
53		(rsc->stencil && (rsc->stencil->status & status));
54}
55
56static void
57fd_invalidate_resource(struct fd_context *ctx, struct pipe_resource *prsc)
58{
59	int i;
60
61	/* Go through the entire state and see if the resource is bound
62	 * anywhere. If it is, mark the relevant state as dirty. This is called on
63	 * realloc_bo.
64	 */
65
66	/* Constbufs */
67	for (i = 1; i < PIPE_MAX_CONSTANT_BUFFERS && !(ctx->dirty & FD_DIRTY_CONSTBUF); i++) {
68		if (ctx->constbuf[PIPE_SHADER_VERTEX].cb[i].buffer == prsc)
69			ctx->dirty |= FD_DIRTY_CONSTBUF;
70		if (ctx->constbuf[PIPE_SHADER_FRAGMENT].cb[i].buffer == prsc)
71			ctx->dirty |= FD_DIRTY_CONSTBUF;
72	}
73
74	/* VBOs */
75	for (i = 0; i < ctx->vtx.vertexbuf.count && !(ctx->dirty & FD_DIRTY_VTXBUF); i++) {
76		if (ctx->vtx.vertexbuf.vb[i].buffer == prsc)
77			ctx->dirty |= FD_DIRTY_VTXBUF;
78	}
79
80	/* Index buffer */
81	if (ctx->indexbuf.buffer == prsc)
82		ctx->dirty |= FD_DIRTY_INDEXBUF;
83
84	/* Textures */
85	for (i = 0; i < ctx->verttex.num_textures && !(ctx->dirty & FD_DIRTY_VERTTEX); i++) {
86		if (ctx->verttex.textures[i] && (ctx->verttex.textures[i]->texture == prsc))
87			ctx->dirty |= FD_DIRTY_VERTTEX;
88	}
89	for (i = 0; i < ctx->fragtex.num_textures && !(ctx->dirty & FD_DIRTY_FRAGTEX); i++) {
90		if (ctx->fragtex.textures[i] && (ctx->fragtex.textures[i]->texture == prsc))
91			ctx->dirty |= FD_DIRTY_FRAGTEX;
92	}
93}
94
95static void
96realloc_bo(struct fd_resource *rsc, uint32_t size)
97{
98	struct fd_screen *screen = fd_screen(rsc->base.b.screen);
99	uint32_t flags = DRM_FREEDRENO_GEM_CACHE_WCOMBINE |
100			DRM_FREEDRENO_GEM_TYPE_KMEM; /* TODO */
101
102	/* if we start using things other than write-combine,
103	 * be sure to check for PIPE_RESOURCE_FLAG_MAP_COHERENT
104	 */
105
106	if (rsc->bo)
107		fd_bo_del(rsc->bo);
108
109	rsc->bo = fd_bo_new(screen->dev, size, flags);
110	rsc->timestamp = 0;
111	rsc->status = 0;
112	rsc->pending_ctx = NULL;
113	list_delinit(&rsc->list);
114	util_range_set_empty(&rsc->valid_buffer_range);
115}
116
117static unsigned
118fd_resource_layer_offset(struct fd_resource *rsc,
119						 struct fd_resource_slice *slice,
120						 unsigned layer)
121{
122	if (rsc->layer_first)
123		return layer * rsc->layer_size;
124	else
125		return layer * slice->size0;
126}
127
128static void
129fd_resource_flush_z32s8(struct fd_transfer *trans, const struct pipe_box *box)
130{
131	struct fd_resource *rsc = fd_resource(trans->base.resource);
132	struct fd_resource_slice *slice = fd_resource_slice(rsc, trans->base.level);
133	struct fd_resource_slice *sslice = fd_resource_slice(rsc->stencil, trans->base.level);
134	enum pipe_format format = trans->base.resource->format;
135
136	float *depth = fd_bo_map(rsc->bo) + slice->offset +
137		fd_resource_layer_offset(rsc, slice, trans->base.box.z) +
138		(trans->base.box.y + box->y) * slice->pitch * 4 + (trans->base.box.x + box->x) * 4;
139	uint8_t *stencil = fd_bo_map(rsc->stencil->bo) + sslice->offset +
140		fd_resource_layer_offset(rsc->stencil, sslice, trans->base.box.z) +
141		(trans->base.box.y + box->y) * sslice->pitch + trans->base.box.x + box->x;
142
143	if (format != PIPE_FORMAT_X32_S8X24_UINT)
144		util_format_z32_float_s8x24_uint_unpack_z_float(
145				depth, slice->pitch * 4,
146				trans->staging, trans->base.stride,
147				box->width, box->height);
148
149	util_format_z32_float_s8x24_uint_unpack_s_8uint(
150			stencil, sslice->pitch,
151			trans->staging, trans->base.stride,
152			box->width, box->height);
153}
154
155static void
156fd_resource_flush_rgtc(struct fd_transfer *trans, const struct pipe_box *box)
157{
158	struct fd_resource *rsc = fd_resource(trans->base.resource);
159	struct fd_resource_slice *slice = fd_resource_slice(rsc, trans->base.level);
160	enum pipe_format format = trans->base.resource->format;
161
162	uint8_t *data = fd_bo_map(rsc->bo) + slice->offset +
163		fd_resource_layer_offset(rsc, slice, trans->base.box.z) +
164		((trans->base.box.y + box->y) * slice->pitch +
165		 trans->base.box.x + box->x) * rsc->cpp;
166
167	uint8_t *source = trans->staging +
168		util_format_get_nblocksy(format, box->y) * trans->base.stride +
169		util_format_get_stride(format, box->x);
170
171	switch (format) {
172	case PIPE_FORMAT_RGTC1_UNORM:
173	case PIPE_FORMAT_RGTC1_SNORM:
174	case PIPE_FORMAT_LATC1_UNORM:
175	case PIPE_FORMAT_LATC1_SNORM:
176		util_format_rgtc1_unorm_unpack_rgba_8unorm(
177				data, slice->pitch * rsc->cpp,
178				source, trans->base.stride,
179				box->width, box->height);
180		break;
181	case PIPE_FORMAT_RGTC2_UNORM:
182	case PIPE_FORMAT_RGTC2_SNORM:
183	case PIPE_FORMAT_LATC2_UNORM:
184	case PIPE_FORMAT_LATC2_SNORM:
185		util_format_rgtc2_unorm_unpack_rgba_8unorm(
186				data, slice->pitch * rsc->cpp,
187				source, trans->base.stride,
188				box->width, box->height);
189		break;
190	default:
191		assert(!"Unexpected format\n");
192		break;
193	}
194}
195
196static void
197fd_resource_flush(struct fd_transfer *trans, const struct pipe_box *box)
198{
199	enum pipe_format format = trans->base.resource->format;
200
201	switch (format) {
202	case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
203	case PIPE_FORMAT_X32_S8X24_UINT:
204		fd_resource_flush_z32s8(trans, box);
205		break;
206	case PIPE_FORMAT_RGTC1_UNORM:
207	case PIPE_FORMAT_RGTC1_SNORM:
208	case PIPE_FORMAT_RGTC2_UNORM:
209	case PIPE_FORMAT_RGTC2_SNORM:
210	case PIPE_FORMAT_LATC1_UNORM:
211	case PIPE_FORMAT_LATC1_SNORM:
212	case PIPE_FORMAT_LATC2_UNORM:
213	case PIPE_FORMAT_LATC2_SNORM:
214		fd_resource_flush_rgtc(trans, box);
215		break;
216	default:
217		assert(!"Unexpected staging transfer type");
218		break;
219	}
220}
221
222static void fd_resource_transfer_flush_region(struct pipe_context *pctx,
223		struct pipe_transfer *ptrans,
224		const struct pipe_box *box)
225{
226	struct fd_resource *rsc = fd_resource(ptrans->resource);
227	struct fd_transfer *trans = fd_transfer(ptrans);
228
229	if (ptrans->resource->target == PIPE_BUFFER)
230		util_range_add(&rsc->valid_buffer_range,
231					   ptrans->box.x + box->x,
232					   ptrans->box.x + box->x + box->width);
233
234	if (trans->staging)
235		fd_resource_flush(trans, box);
236}
237
238static void
239fd_resource_transfer_unmap(struct pipe_context *pctx,
240		struct pipe_transfer *ptrans)
241{
242	struct fd_context *ctx = fd_context(pctx);
243	struct fd_resource *rsc = fd_resource(ptrans->resource);
244	struct fd_transfer *trans = fd_transfer(ptrans);
245
246	if (trans->staging && !(ptrans->usage & PIPE_TRANSFER_FLUSH_EXPLICIT)) {
247		struct pipe_box box;
248		u_box_2d(0, 0, ptrans->box.width, ptrans->box.height, &box);
249		fd_resource_flush(trans, &box);
250	}
251
252	if (!(ptrans->usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
253		fd_bo_cpu_fini(rsc->bo);
254		if (rsc->stencil)
255			fd_bo_cpu_fini(rsc->stencil->bo);
256	}
257
258	util_range_add(&rsc->valid_buffer_range,
259				   ptrans->box.x,
260				   ptrans->box.x + ptrans->box.width);
261
262	pipe_resource_reference(&ptrans->resource, NULL);
263	util_slab_free(&ctx->transfer_pool, ptrans);
264
265	free(trans->staging);
266}
267
268static void *
269fd_resource_transfer_map(struct pipe_context *pctx,
270		struct pipe_resource *prsc,
271		unsigned level, unsigned usage,
272		const struct pipe_box *box,
273		struct pipe_transfer **pptrans)
274{
275	struct fd_context *ctx = fd_context(pctx);
276	struct fd_resource *rsc = fd_resource(prsc);
277	struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
278	struct fd_transfer *trans;
279	struct pipe_transfer *ptrans;
280	enum pipe_format format = prsc->format;
281	uint32_t op = 0;
282	uint32_t offset;
283	char *buf;
284	int ret = 0;
285
286	DBG("prsc=%p, level=%u, usage=%x, box=%dx%d+%d,%d", prsc, level, usage,
287		box->width, box->height, box->x, box->y);
288
289	ptrans = util_slab_alloc(&ctx->transfer_pool);
290	if (!ptrans)
291		return NULL;
292
293	/* util_slab_alloc() doesn't zero: */
294	trans = fd_transfer(ptrans);
295	memset(trans, 0, sizeof(*trans));
296
297	pipe_resource_reference(&ptrans->resource, prsc);
298	ptrans->level = level;
299	ptrans->usage = usage;
300	ptrans->box = *box;
301	ptrans->stride = util_format_get_nblocksx(format, slice->pitch) * rsc->cpp;
302	ptrans->layer_stride = rsc->layer_first ? rsc->layer_size : slice->size0;
303
304	if (usage & PIPE_TRANSFER_READ)
305		op |= DRM_FREEDRENO_PREP_READ;
306
307	if (usage & PIPE_TRANSFER_WRITE)
308		op |= DRM_FREEDRENO_PREP_WRITE;
309
310	if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
311		realloc_bo(rsc, fd_bo_size(rsc->bo));
312		if (rsc->stencil)
313			realloc_bo(rsc->stencil, fd_bo_size(rsc->stencil->bo));
314		fd_invalidate_resource(ctx, prsc);
315	} else if ((usage & PIPE_TRANSFER_WRITE) &&
316			   prsc->target == PIPE_BUFFER &&
317			   !util_ranges_intersect(&rsc->valid_buffer_range,
318									  box->x, box->x + box->width)) {
319		/* We are trying to write to a previously uninitialized range. No need
320		 * to wait.
321		 */
322	} else if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
323		/* If the GPU is writing to the resource, or if it is reading from the
324		 * resource and we're trying to write to it, flush the renders.
325		 */
326		if (((ptrans->usage & PIPE_TRANSFER_WRITE) &&
327					pending(rsc, FD_PENDING_READ | FD_PENDING_WRITE)) ||
328				pending(rsc, FD_PENDING_WRITE))
329			fd_context_render(pctx);
330
331		/* The GPU keeps track of how the various bo's are being used, and
332		 * will wait if necessary for the proper operation to have
333		 * completed.
334		 */
335		ret = fd_bo_cpu_prep(rsc->bo, ctx->screen->pipe, op);
336		if (ret)
337			goto fail;
338	}
339
340	buf = fd_bo_map(rsc->bo);
341	if (!buf)
342		goto fail;
343
344	offset = slice->offset +
345		box->y / util_format_get_blockheight(format) * ptrans->stride +
346		box->x / util_format_get_blockwidth(format) * rsc->cpp +
347		fd_resource_layer_offset(rsc, slice, box->z);
348
349	if (prsc->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT ||
350		prsc->format == PIPE_FORMAT_X32_S8X24_UINT) {
351		assert(trans->base.box.depth == 1);
352
353		trans->base.stride = trans->base.box.width * rsc->cpp * 2;
354		trans->staging = malloc(trans->base.stride * trans->base.box.height);
355		if (!trans->staging)
356			goto fail;
357
358		/* if we're not discarding the whole range (or resource), we must copy
359		 * the real data in.
360		 */
361		if (!(usage & (PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE |
362					   PIPE_TRANSFER_DISCARD_RANGE))) {
363			struct fd_resource_slice *sslice =
364				fd_resource_slice(rsc->stencil, level);
365			void *sbuf = fd_bo_map(rsc->stencil->bo);
366			if (!sbuf)
367				goto fail;
368
369			float *depth = (float *)(buf + slice->offset +
370				fd_resource_layer_offset(rsc, slice, box->z) +
371				box->y * slice->pitch * 4 + box->x * 4);
372			uint8_t *stencil = sbuf + sslice->offset +
373				fd_resource_layer_offset(rsc->stencil, sslice, box->z) +
374				box->y * sslice->pitch + box->x;
375
376			if (format != PIPE_FORMAT_X32_S8X24_UINT)
377				util_format_z32_float_s8x24_uint_pack_z_float(
378						trans->staging, trans->base.stride,
379						depth, slice->pitch * 4,
380						box->width, box->height);
381
382			util_format_z32_float_s8x24_uint_pack_s_8uint(
383					trans->staging, trans->base.stride,
384					stencil, sslice->pitch,
385					box->width, box->height);
386		}
387
388		buf = trans->staging;
389		offset = 0;
390	} else if (rsc->internal_format != format &&
391			   util_format_description(format)->layout == UTIL_FORMAT_LAYOUT_RGTC) {
392		assert(trans->base.box.depth == 1);
393
394		trans->base.stride = util_format_get_stride(
395				format, trans->base.box.width);
396		trans->staging = malloc(
397				util_format_get_2d_size(format, trans->base.stride,
398										trans->base.box.height));
399		if (!trans->staging)
400			goto fail;
401
402		/* if we're not discarding the whole range (or resource), we must copy
403		 * the real data in.
404		 */
405		if (!(usage & (PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE |
406					   PIPE_TRANSFER_DISCARD_RANGE))) {
407			uint8_t *rgba8 = (uint8_t *)buf + slice->offset +
408				fd_resource_layer_offset(rsc, slice, box->z) +
409				box->y * slice->pitch * rsc->cpp + box->x * rsc->cpp;
410
411			switch (format) {
412			case PIPE_FORMAT_RGTC1_UNORM:
413			case PIPE_FORMAT_RGTC1_SNORM:
414			case PIPE_FORMAT_LATC1_UNORM:
415			case PIPE_FORMAT_LATC1_SNORM:
416				util_format_rgtc1_unorm_pack_rgba_8unorm(
417					trans->staging, trans->base.stride,
418					rgba8, slice->pitch * rsc->cpp,
419					box->width, box->height);
420				break;
421			case PIPE_FORMAT_RGTC2_UNORM:
422			case PIPE_FORMAT_RGTC2_SNORM:
423			case PIPE_FORMAT_LATC2_UNORM:
424			case PIPE_FORMAT_LATC2_SNORM:
425				util_format_rgtc2_unorm_pack_rgba_8unorm(
426					trans->staging, trans->base.stride,
427					rgba8, slice->pitch * rsc->cpp,
428					box->width, box->height);
429				break;
430			default:
431				assert(!"Unexpected format");
432				break;
433			}
434		}
435
436		buf = trans->staging;
437		offset = 0;
438	}
439
440	*pptrans = ptrans;
441
442	return buf + offset;
443
444fail:
445	fd_resource_transfer_unmap(pctx, ptrans);
446	return NULL;
447}
448
449static void
450fd_resource_destroy(struct pipe_screen *pscreen,
451		struct pipe_resource *prsc)
452{
453	struct fd_resource *rsc = fd_resource(prsc);
454	if (rsc->bo)
455		fd_bo_del(rsc->bo);
456	list_delinit(&rsc->list);
457	util_range_destroy(&rsc->valid_buffer_range);
458	FREE(rsc);
459}
460
461static boolean
462fd_resource_get_handle(struct pipe_screen *pscreen,
463		struct pipe_resource *prsc,
464		struct winsys_handle *handle)
465{
466	struct fd_resource *rsc = fd_resource(prsc);
467
468	return fd_screen_bo_get_handle(pscreen, rsc->bo,
469			rsc->slices[0].pitch * rsc->cpp, handle);
470}
471
472
473static const struct u_resource_vtbl fd_resource_vtbl = {
474		.resource_get_handle      = fd_resource_get_handle,
475		.resource_destroy         = fd_resource_destroy,
476		.transfer_map             = fd_resource_transfer_map,
477		.transfer_flush_region    = fd_resource_transfer_flush_region,
478		.transfer_unmap           = fd_resource_transfer_unmap,
479};
480
481static uint32_t
482setup_slices(struct fd_resource *rsc, uint32_t alignment, enum pipe_format format)
483{
484	struct pipe_resource *prsc = &rsc->base.b;
485	enum util_format_layout layout = util_format_description(format)->layout;
486	uint32_t level, size = 0;
487	uint32_t width = prsc->width0;
488	uint32_t height = prsc->height0;
489	uint32_t depth = prsc->depth0;
490	/* in layer_first layout, the level (slice) contains just one
491	 * layer (since in fact the layer contains the slices)
492	 */
493	uint32_t layers_in_level = rsc->layer_first ? 1 : prsc->array_size;
494
495	for (level = 0; level <= prsc->last_level; level++) {
496		struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
497		uint32_t blocks;
498
499		if (layout == UTIL_FORMAT_LAYOUT_ASTC)
500			slice->pitch = width =
501				util_align_npot(width, 32 * util_format_get_blockwidth(format));
502		else
503			slice->pitch = width = align(width, 32);
504		slice->offset = size;
505		blocks = util_format_get_nblocks(format, width, height);
506		/* 1d array and 2d array textures must all have the same layer size
507		 * for each miplevel on a3xx. 3d textures can have different layer
508		 * sizes for high levels, but the hw auto-sizer is buggy (or at least
509		 * different than what this code does), so as soon as the layer size
510		 * range gets into range, we stop reducing it.
511		 */
512		if (prsc->target == PIPE_TEXTURE_3D && (
513					level == 1 ||
514					(level > 1 && rsc->slices[level - 1].size0 > 0xf000)))
515			slice->size0 = align(blocks * rsc->cpp, alignment);
516		else if (level == 0 || rsc->layer_first || alignment == 1)
517			slice->size0 = align(blocks * rsc->cpp, alignment);
518		else
519			slice->size0 = rsc->slices[level - 1].size0;
520
521		size += slice->size0 * depth * layers_in_level;
522
523		width = u_minify(width, 1);
524		height = u_minify(height, 1);
525		depth = u_minify(depth, 1);
526	}
527
528	return size;
529}
530
531static uint32_t
532slice_alignment(struct pipe_screen *pscreen, const struct pipe_resource *tmpl)
533{
534	/* on a3xx, 2d array and 3d textures seem to want their
535	 * layers aligned to page boundaries:
536	 */
537	switch (tmpl->target) {
538	case PIPE_TEXTURE_3D:
539	case PIPE_TEXTURE_1D_ARRAY:
540	case PIPE_TEXTURE_2D_ARRAY:
541		return 4096;
542	default:
543		return 1;
544	}
545}
546
547/**
548 * Create a new texture object, using the given template info.
549 */
550static struct pipe_resource *
551fd_resource_create(struct pipe_screen *pscreen,
552		const struct pipe_resource *tmpl)
553{
554	struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
555	struct pipe_resource *prsc = &rsc->base.b;
556	enum pipe_format format = tmpl->format;
557	uint32_t size, alignment;
558
559	DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
560			"nr_samples=%u, usage=%u, bind=%x, flags=%x",
561			tmpl->target, util_format_name(format),
562			tmpl->width0, tmpl->height0, tmpl->depth0,
563			tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
564			tmpl->usage, tmpl->bind, tmpl->flags);
565
566	if (!rsc)
567		return NULL;
568
569	*prsc = *tmpl;
570
571	pipe_reference_init(&prsc->reference, 1);
572	list_inithead(&rsc->list);
573	prsc->screen = pscreen;
574
575	util_range_init(&rsc->valid_buffer_range);
576
577	rsc->base.vtbl = &fd_resource_vtbl;
578
579	if (format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)
580		format = PIPE_FORMAT_Z32_FLOAT;
581	else if (fd_screen(pscreen)->gpu_id < 400 &&
582			 util_format_description(format)->layout == UTIL_FORMAT_LAYOUT_RGTC)
583		format = PIPE_FORMAT_R8G8B8A8_UNORM;
584	rsc->internal_format = format;
585	rsc->cpp = util_format_get_blocksize(format);
586
587	assert(rsc->cpp);
588
589	alignment = slice_alignment(pscreen, tmpl);
590	if (is_a4xx(fd_screen(pscreen))) {
591		switch (tmpl->target) {
592		case PIPE_TEXTURE_3D:
593			rsc->layer_first = false;
594			break;
595		default:
596			rsc->layer_first = true;
597			alignment = 1;
598			break;
599		}
600	}
601
602	size = setup_slices(rsc, alignment, format);
603
604	if (rsc->layer_first) {
605		rsc->layer_size = align(size, 4096);
606		size = rsc->layer_size * prsc->array_size;
607	}
608
609	realloc_bo(rsc, size);
610	if (!rsc->bo)
611		goto fail;
612
613	/* There is no native Z32F_S8 sampling or rendering format, so this must
614	 * be emulated via two separate textures. The depth texture still keeps
615	 * its Z32F_S8 format though, and we also keep a reference to a separate
616	 * S8 texture.
617	 */
618	if (tmpl->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT) {
619		struct pipe_resource stencil = *tmpl;
620		stencil.format = PIPE_FORMAT_S8_UINT;
621		rsc->stencil = fd_resource(fd_resource_create(pscreen, &stencil));
622		if (!rsc->stencil)
623			goto fail;
624	}
625
626	return prsc;
627fail:
628	fd_resource_destroy(pscreen, prsc);
629	return NULL;
630}
631
632/**
633 * Create a texture from a winsys_handle. The handle is often created in
634 * another process by first creating a pipe texture and then calling
635 * resource_get_handle.
636 */
637static struct pipe_resource *
638fd_resource_from_handle(struct pipe_screen *pscreen,
639		const struct pipe_resource *tmpl,
640		struct winsys_handle *handle, unsigned usage)
641{
642	struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
643	struct fd_resource_slice *slice = &rsc->slices[0];
644	struct pipe_resource *prsc = &rsc->base.b;
645
646	DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
647			"nr_samples=%u, usage=%u, bind=%x, flags=%x",
648			tmpl->target, util_format_name(tmpl->format),
649			tmpl->width0, tmpl->height0, tmpl->depth0,
650			tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
651			tmpl->usage, tmpl->bind, tmpl->flags);
652
653	if (!rsc)
654		return NULL;
655
656	*prsc = *tmpl;
657
658	pipe_reference_init(&prsc->reference, 1);
659	list_inithead(&rsc->list);
660	prsc->screen = pscreen;
661
662	util_range_init(&rsc->valid_buffer_range);
663
664	rsc->bo = fd_screen_bo_from_handle(pscreen, handle, &slice->pitch);
665	if (!rsc->bo)
666		goto fail;
667
668	rsc->base.vtbl = &fd_resource_vtbl;
669	rsc->cpp = util_format_get_blocksize(tmpl->format);
670	slice->pitch /= rsc->cpp;
671	slice->offset = handle->offset;
672
673	assert(rsc->cpp);
674
675	return prsc;
676
677fail:
678	fd_resource_destroy(pscreen, prsc);
679	return NULL;
680}
681
682static void fd_blitter_pipe_begin(struct fd_context *ctx, bool render_cond);
683static void fd_blitter_pipe_end(struct fd_context *ctx);
684
685/**
686 * _copy_region using pipe (3d engine)
687 */
688static bool
689fd_blitter_pipe_copy_region(struct fd_context *ctx,
690		struct pipe_resource *dst,
691		unsigned dst_level,
692		unsigned dstx, unsigned dsty, unsigned dstz,
693		struct pipe_resource *src,
694		unsigned src_level,
695		const struct pipe_box *src_box)
696{
697	/* not until we allow rendertargets to be buffers */
698	if (dst->target == PIPE_BUFFER || src->target == PIPE_BUFFER)
699		return false;
700
701	if (!util_blitter_is_copy_supported(ctx->blitter, dst, src))
702		return false;
703
704	fd_blitter_pipe_begin(ctx, false);
705	util_blitter_copy_texture(ctx->blitter,
706			dst, dst_level, dstx, dsty, dstz,
707			src, src_level, src_box);
708	fd_blitter_pipe_end(ctx);
709
710	return true;
711}
712
713/**
714 * Copy a block of pixels from one resource to another.
715 * The resource must be of the same format.
716 * Resources with nr_samples > 1 are not allowed.
717 */
718static void
719fd_resource_copy_region(struct pipe_context *pctx,
720		struct pipe_resource *dst,
721		unsigned dst_level,
722		unsigned dstx, unsigned dsty, unsigned dstz,
723		struct pipe_resource *src,
724		unsigned src_level,
725		const struct pipe_box *src_box)
726{
727	struct fd_context *ctx = fd_context(pctx);
728
729	/* TODO if we have 2d core, or other DMA engine that could be used
730	 * for simple copies and reasonably easily synchronized with the 3d
731	 * core, this is where we'd plug it in..
732	 */
733
734	/* try blit on 3d pipe: */
735	if (fd_blitter_pipe_copy_region(ctx,
736			dst, dst_level, dstx, dsty, dstz,
737			src, src_level, src_box))
738		return;
739
740	/* else fallback to pure sw: */
741	util_resource_copy_region(pctx,
742			dst, dst_level, dstx, dsty, dstz,
743			src, src_level, src_box);
744}
745
746bool
747fd_render_condition_check(struct pipe_context *pctx)
748{
749	struct fd_context *ctx = fd_context(pctx);
750
751	if (!ctx->cond_query)
752		return true;
753
754	union pipe_query_result res = { 0 };
755	bool wait =
756		ctx->cond_mode != PIPE_RENDER_COND_NO_WAIT &&
757		ctx->cond_mode != PIPE_RENDER_COND_BY_REGION_NO_WAIT;
758
759	if (pctx->get_query_result(pctx, ctx->cond_query, wait, &res))
760			return (bool)res.u64 != ctx->cond_cond;
761
762	return true;
763}
764
765/**
766 * Optimal hardware path for blitting pixels.
767 * Scaling, format conversion, up- and downsampling (resolve) are allowed.
768 */
769static void
770fd_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
771{
772	struct fd_context *ctx = fd_context(pctx);
773	struct pipe_blit_info info = *blit_info;
774
775	if (info.src.resource->nr_samples > 1 &&
776			info.dst.resource->nr_samples <= 1 &&
777			!util_format_is_depth_or_stencil(info.src.resource->format) &&
778			!util_format_is_pure_integer(info.src.resource->format)) {
779		DBG("color resolve unimplemented");
780		return;
781	}
782
783	if (info.render_condition_enable && !fd_render_condition_check(pctx))
784		return;
785
786	if (util_try_blit_via_copy_region(pctx, &info)) {
787		return; /* done */
788	}
789
790	if (info.mask & PIPE_MASK_S) {
791		DBG("cannot blit stencil, skipping");
792		info.mask &= ~PIPE_MASK_S;
793	}
794
795	if (!util_blitter_is_blit_supported(ctx->blitter, &info)) {
796		DBG("blit unsupported %s -> %s",
797				util_format_short_name(info.src.resource->format),
798				util_format_short_name(info.dst.resource->format));
799		return;
800	}
801
802	fd_blitter_pipe_begin(ctx, info.render_condition_enable);
803	util_blitter_blit(ctx->blitter, &info);
804	fd_blitter_pipe_end(ctx);
805}
806
807static void
808fd_blitter_pipe_begin(struct fd_context *ctx, bool render_cond)
809{
810	util_blitter_save_vertex_buffer_slot(ctx->blitter, ctx->vtx.vertexbuf.vb);
811	util_blitter_save_vertex_elements(ctx->blitter, ctx->vtx.vtx);
812	util_blitter_save_vertex_shader(ctx->blitter, ctx->prog.vp);
813	util_blitter_save_so_targets(ctx->blitter, ctx->streamout.num_targets,
814			ctx->streamout.targets);
815	util_blitter_save_rasterizer(ctx->blitter, ctx->rasterizer);
816	util_blitter_save_viewport(ctx->blitter, &ctx->viewport);
817	util_blitter_save_scissor(ctx->blitter, &ctx->scissor);
818	util_blitter_save_fragment_shader(ctx->blitter, ctx->prog.fp);
819	util_blitter_save_blend(ctx->blitter, ctx->blend);
820	util_blitter_save_depth_stencil_alpha(ctx->blitter, ctx->zsa);
821	util_blitter_save_stencil_ref(ctx->blitter, &ctx->stencil_ref);
822	util_blitter_save_sample_mask(ctx->blitter, ctx->sample_mask);
823	util_blitter_save_framebuffer(ctx->blitter, &ctx->framebuffer);
824	util_blitter_save_fragment_sampler_states(ctx->blitter,
825			ctx->fragtex.num_samplers,
826			(void **)ctx->fragtex.samplers);
827	util_blitter_save_fragment_sampler_views(ctx->blitter,
828			ctx->fragtex.num_textures, ctx->fragtex.textures);
829	if (!render_cond)
830		util_blitter_save_render_condition(ctx->blitter,
831			ctx->cond_query, ctx->cond_cond, ctx->cond_mode);
832
833	fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_BLIT);
834}
835
836static void
837fd_blitter_pipe_end(struct fd_context *ctx)
838{
839	fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_NULL);
840}
841
842static void
843fd_flush_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
844{
845	struct fd_resource *rsc = fd_resource(prsc);
846
847	if (pending(rsc, FD_PENDING_WRITE | FD_PENDING_READ))
848		fd_context_render(pctx);
849}
850
851void
852fd_resource_screen_init(struct pipe_screen *pscreen)
853{
854	pscreen->resource_create = fd_resource_create;
855	pscreen->resource_from_handle = fd_resource_from_handle;
856	pscreen->resource_get_handle = u_resource_get_handle_vtbl;
857	pscreen->resource_destroy = u_resource_destroy_vtbl;
858}
859
860void
861fd_resource_context_init(struct pipe_context *pctx)
862{
863	pctx->transfer_map = u_transfer_map_vtbl;
864	pctx->transfer_flush_region = u_transfer_flush_region_vtbl;
865	pctx->transfer_unmap = u_transfer_unmap_vtbl;
866	pctx->buffer_subdata = u_default_buffer_subdata;
867        pctx->texture_subdata = u_default_texture_subdata;
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