1 /*
2 * Copyright 2014, 2015 Red Hat.
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 "util/format/u_format.h"
24 #include "util/u_inlines.h"
25 #include "util/u_memory.h"
26
27 #include "virgl_context.h"
28 #include "virgl_encode.h"
29 #include "virgl_resource.h"
30 #include "virgl_screen.h"
31
virgl_copy_region_with_blit(struct pipe_context * pipe,struct pipe_resource * dst,unsigned dst_level,const struct pipe_box * dst_box,struct pipe_resource * src,unsigned src_level,const struct pipe_box * src_box)32 static void virgl_copy_region_with_blit(struct pipe_context *pipe,
33 struct pipe_resource *dst,
34 unsigned dst_level,
35 const struct pipe_box *dst_box,
36 struct pipe_resource *src,
37 unsigned src_level,
38 const struct pipe_box *src_box)
39 {
40 struct pipe_blit_info blit;
41
42 memset(&blit, 0, sizeof(blit));
43 blit.src.resource = src;
44 blit.src.format = src->format;
45 blit.src.level = src_level;
46 blit.src.box = *src_box;
47 blit.dst.resource = dst;
48 blit.dst.format = dst->format;
49 blit.dst.level = dst_level;
50 blit.dst.box.x = dst_box->x;
51 blit.dst.box.y = dst_box->y;
52 blit.dst.box.z = dst_box->z;
53 blit.dst.box.width = dst_box->width;
54 blit.dst.box.height = dst_box->height;
55 blit.dst.box.depth = dst_box->depth;
56 blit.mask = util_format_get_mask(src->format) &
57 util_format_get_mask(dst->format);
58 blit.filter = PIPE_TEX_FILTER_NEAREST;
59
60 if (blit.mask) {
61 pipe->blit(pipe, &blit);
62 }
63 }
64
temp_bind(unsigned orig)65 static unsigned temp_bind(unsigned orig)
66 {
67 unsigned warn = ~(PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL |
68 PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_DISPLAY_TARGET);
69 if (orig & warn)
70 debug_printf("VIRGL: Warning, possibly unhandled bind: %x\n",
71 orig & warn);
72
73 return orig & (PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_RENDER_TARGET);
74 }
75
virgl_init_temp_resource_from_box(struct pipe_resource * res,struct pipe_resource * orig,const struct pipe_box * box,unsigned level,unsigned flags,enum pipe_format fmt)76 static void virgl_init_temp_resource_from_box(struct pipe_resource *res,
77 struct pipe_resource *orig,
78 const struct pipe_box *box,
79 unsigned level, unsigned flags,
80 enum pipe_format fmt)
81 {
82 memset(res, 0, sizeof(*res));
83 res->bind = temp_bind(orig->bind);
84 res->format = fmt;
85 res->width0 = box->width;
86 res->height0 = box->height;
87 res->depth0 = 1;
88 res->array_size = 1;
89 res->usage = PIPE_USAGE_STAGING;
90 res->flags = flags;
91
92 /* We must set the correct texture target and dimensions for a 3D box. */
93 if (box->depth > 1 && util_max_layer(orig, level) > 0)
94 res->target = orig->target;
95 else
96 res->target = PIPE_TEXTURE_2D;
97
98 if (res->target != PIPE_BUFFER)
99 res->bind = PIPE_BIND_RENDER_TARGET;
100
101 switch (res->target) {
102 case PIPE_TEXTURE_1D_ARRAY:
103 case PIPE_TEXTURE_2D_ARRAY:
104 case PIPE_TEXTURE_CUBE_ARRAY:
105 res->array_size = box->depth;
106 break;
107 case PIPE_TEXTURE_3D:
108 res->depth0 = box->depth;
109 break;
110 default:
111 break;
112 }
113 }
114
texture_transfer_map_resolve(struct pipe_context * ctx,struct pipe_resource * resource,unsigned level,unsigned usage,const struct pipe_box * box,struct pipe_transfer ** transfer)115 static void *texture_transfer_map_resolve(struct pipe_context *ctx,
116 struct pipe_resource *resource,
117 unsigned level,
118 unsigned usage,
119 const struct pipe_box *box,
120 struct pipe_transfer **transfer)
121 {
122 struct virgl_context *vctx = virgl_context(ctx);
123 struct virgl_resource *vtex = virgl_resource(resource);
124 struct pipe_resource templ, *resolve_tmp;
125 struct virgl_transfer *trans;
126
127 trans = virgl_resource_create_transfer(vctx, resource,
128 &vtex->metadata, level, usage, box);
129 if (!trans)
130 return NULL;
131
132 enum pipe_format fmt = resource->format;
133 if (!virgl_has_readback_format(ctx->screen, pipe_to_virgl_format(fmt))) {
134 if (util_format_fits_8unorm(util_format_description(fmt)))
135 fmt = PIPE_FORMAT_R8G8B8A8_UNORM;
136 else if (util_format_is_pure_sint(fmt))
137 fmt = PIPE_FORMAT_R32G32B32A32_SINT;
138 else if (util_format_is_pure_uint(fmt))
139 fmt = PIPE_FORMAT_R32G32B32A32_UINT;
140 else
141 fmt = PIPE_FORMAT_R32G32B32A32_FLOAT;
142 assert(virgl_has_readback_format(ctx->screen, pipe_to_virgl_format(fmt)));
143 }
144
145 struct pipe_box dst_box = *box;
146 dst_box.x = dst_box.y = dst_box.z = 0;
147 if (usage & PIPE_MAP_READ) {
148 /* readback should scale to the block size */
149 dst_box.width = align(dst_box.width,
150 util_format_get_blockwidth(resource->format));
151 dst_box.height = align(dst_box.height,
152 util_format_get_blockheight(resource->format));
153 }
154
155 virgl_init_temp_resource_from_box(&templ, resource, &dst_box, level, 0, fmt);
156
157 resolve_tmp = ctx->screen->resource_create(ctx->screen, &templ);
158 if (!resolve_tmp)
159 return NULL;
160
161 if (usage & PIPE_MAP_READ) {
162 virgl_copy_region_with_blit(ctx, resolve_tmp, 0, &dst_box, resource,
163 level, box);
164 ctx->flush(ctx, NULL, 0);
165 }
166
167 void *ptr = virgl_resource_transfer_map(ctx, resolve_tmp, 0, usage, &dst_box,
168 &trans->resolve_transfer);
169 if (!ptr)
170 goto fail;
171
172 /* trans->resolve_transfer owns resolve_tmp now */
173 pipe_resource_reference(&resolve_tmp, NULL);
174
175 *transfer = &trans->base;
176 if (fmt == resource->format) {
177 trans->base.stride = trans->resolve_transfer->stride;
178 trans->base.layer_stride = trans->resolve_transfer->layer_stride;
179 return ptr;
180 } else {
181 if (usage & PIPE_MAP_READ) {
182 struct virgl_winsys *vws = virgl_screen(ctx->screen)->vws;
183 void *src = ptr;
184 ptr = vws->resource_map(vws, vtex->hw_res);
185 if (!ptr)
186 goto fail;
187
188 if (!util_format_translate_3d(resource->format,
189 ptr + vtex->metadata.level_offset[level],
190 trans->base.stride,
191 trans->base.layer_stride,
192 box->x, box->y, box->z,
193 fmt,
194 src,
195 trans->resolve_transfer->stride,
196 trans->resolve_transfer->layer_stride,
197 0, 0, 0,
198 dst_box.width,
199 dst_box.height,
200 dst_box.depth)) {
201 debug_printf("failed to translate format %s to %s\n",
202 util_format_short_name(fmt),
203 util_format_short_name(resource->format));
204 goto fail;
205 }
206 }
207
208 if ((usage & PIPE_MAP_WRITE) == 0)
209 pipe_resource_reference(&trans->resolve_transfer->resource, NULL);
210
211 return ptr + trans->offset;
212 }
213
214 fail:
215 pipe_resource_reference(&resolve_tmp, NULL);
216 virgl_resource_destroy_transfer(vctx, trans);
217 return NULL;
218 }
219
needs_resolve(struct pipe_screen * screen,struct pipe_resource * resource,unsigned usage)220 static bool needs_resolve(struct pipe_screen *screen,
221 struct pipe_resource *resource, unsigned usage)
222 {
223 if (resource->nr_samples > 1)
224 return true;
225
226 if (usage & PIPE_MAP_READ)
227 return !util_format_is_depth_or_stencil(resource->format) &&
228 !virgl_has_readback_format(screen, pipe_to_virgl_format(resource->format));
229
230 return false;
231 }
232
virgl_texture_transfer_map(struct pipe_context * ctx,struct pipe_resource * resource,unsigned level,unsigned usage,const struct pipe_box * box,struct pipe_transfer ** transfer)233 static void *virgl_texture_transfer_map(struct pipe_context *ctx,
234 struct pipe_resource *resource,
235 unsigned level,
236 unsigned usage,
237 const struct pipe_box *box,
238 struct pipe_transfer **transfer)
239 {
240 if (needs_resolve(ctx->screen, resource, usage))
241 return texture_transfer_map_resolve(ctx, resource, level, usage, box,
242 transfer);
243
244 return virgl_resource_transfer_map(ctx, resource, level, usage, box, transfer);
245 }
246
flush_data(struct pipe_context * ctx,struct virgl_transfer * trans,const struct pipe_box * box)247 static void flush_data(struct pipe_context *ctx,
248 struct virgl_transfer *trans,
249 const struct pipe_box *box)
250 {
251 struct virgl_winsys *vws = virgl_screen(ctx->screen)->vws;
252 vws->transfer_put(vws, trans->hw_res, box,
253 trans->base.stride, trans->l_stride, trans->offset,
254 trans->base.level);
255 }
256
virgl_texture_transfer_unmap(struct pipe_context * ctx,struct pipe_transfer * transfer)257 static void virgl_texture_transfer_unmap(struct pipe_context *ctx,
258 struct pipe_transfer *transfer)
259 {
260 struct virgl_context *vctx = virgl_context(ctx);
261 struct virgl_transfer *trans = virgl_transfer(transfer);
262 bool queue_unmap = false;
263
264 if (transfer->usage & PIPE_MAP_WRITE &&
265 (transfer->usage & PIPE_MAP_FLUSH_EXPLICIT) == 0) {
266
267 if (trans->resolve_transfer && (trans->base.resource->format ==
268 trans->resolve_transfer->resource->format)) {
269 flush_data(ctx, virgl_transfer(trans->resolve_transfer),
270 &trans->resolve_transfer->box);
271
272 /* FINISHME: In case the destination format isn't renderable here, the
273 * blit here will currently fail. This could for instance happen if the
274 * mapped resource is of a compressed format, and it's mapped with both
275 * read and write usage.
276 */
277
278 virgl_copy_region_with_blit(ctx,
279 trans->base.resource, trans->base.level,
280 &transfer->box,
281 trans->resolve_transfer->resource, 0,
282 &trans->resolve_transfer->box);
283 ctx->flush(ctx, NULL, 0);
284 } else
285 queue_unmap = true;
286 }
287
288 if (trans->resolve_transfer) {
289 virgl_resource_destroy_transfer(vctx,
290 virgl_transfer(trans->resolve_transfer));
291 }
292
293 if (queue_unmap) {
294 if (trans->copy_src_hw_res) {
295 virgl_encode_copy_transfer(vctx, trans);
296 virgl_resource_destroy_transfer(vctx, trans);
297 } else {
298 virgl_transfer_queue_unmap(&vctx->queue, trans);
299 }
300 } else {
301 virgl_resource_destroy_transfer(vctx, trans);
302 }
303 }
304
305 static const struct u_resource_vtbl virgl_texture_vtbl =
306 {
307 virgl_resource_get_handle, /* get_handle */
308 virgl_resource_destroy, /* resource_destroy */
309 virgl_texture_transfer_map, /* transfer_map */
310 NULL, /* transfer_flush_region */
311 virgl_texture_transfer_unmap, /* transfer_unmap */
312 };
313
virgl_texture_init(struct virgl_resource * res)314 void virgl_texture_init(struct virgl_resource *res)
315 {
316 res->u.vtbl = &virgl_texture_vtbl;
317 }
318