src/gallium/drivers/vc4/vc4_resource.c

   1 /*
   2  * Copyright © 2014 Broadcom
   3  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  22  * IN THE SOFTWARE.
  23  */
  24
  25 #include <stdio.h>
  26
  27 #include "util/u_memory.h"
  28 #include "util/u_format.h"
  29 #include "util/u_inlines.h"
  30 #include "util/u_surface.h"
  31 #include "util/u_blitter.h"
  32
  33 #include "vc4_screen.h"
  34 #include "vc4_context.h"
  35 #include "vc4_resource.h"
  36
  37 static void
  38 vc4_resource_transfer_unmap(struct pipe_context *pctx,
  39                             struct pipe_transfer *ptrans)
  40 {
  41         struct vc4_context *vc4 = vc4_context(pctx);
  42
  43         pipe_resource_reference(&ptrans->resource, NULL);
  44         util_slab_free(&vc4->transfer_pool, ptrans);
  45 }
  46
  47 static void *
  48 vc4_resource_transfer_map(struct pipe_context *pctx,
  49                           struct pipe_resource *prsc,
  50                           unsigned level, unsigned usage,
  51                           const struct pipe_box *box,
  52                           struct pipe_transfer **pptrans)
  53 {
  54         struct vc4_context *vc4 = vc4_context(pctx);
  55         struct vc4_resource *rsc = vc4_resource(prsc);
  56         struct pipe_transfer *ptrans;
  57         enum pipe_format format = prsc->format;
  58         char *buf;
  59
  60         vc4_flush_for_bo(pctx, rsc->bo);
  61
  62         ptrans = util_slab_alloc(&vc4->transfer_pool);
  63         if (!ptrans)
  64                 return NULL;
  65
  66         /* util_slab_alloc() doesn't zero: */
  67         memset(ptrans, 0, sizeof(*ptrans));
  68
  69         pipe_resource_reference(&ptrans->resource, prsc);
  70         ptrans->level = level;
  71         ptrans->usage = usage;
  72         ptrans->box = *box;
  73         ptrans->stride = rsc->slices[level].stride;
  74         ptrans->layer_stride = ptrans->stride;
  75
  76         /* Note that the current kernel implementation is synchronous, so no
  77          * need to do syncing stuff here yet.
  78          */
  79
  80         buf = vc4_bo_map(rsc->bo);
  81         if (!buf) {
  82                 fprintf(stderr, "Failed to map bo\n");
  83                 goto fail;
  84         }
  85
  86         *pptrans = ptrans;
  87
  88         return buf + rsc->slices[level].offset +
  89                 box->y / util_format_get_blockheight(format) * ptrans->stride +
  90                 box->x / util_format_get_blockwidth(format) * rsc->cpp +
  91                 box->z * rsc->slices[level].size0;
  92
  93 fail:
  94         vc4_resource_transfer_unmap(pctx, ptrans);
  95         return NULL;
  96 }
  97
  98 static void
  99 vc4_resource_destroy(struct pipe_screen *pscreen,
 100                      struct pipe_resource *prsc)
 101 {
 102         struct vc4_resource *rsc = vc4_resource(prsc);
 103         vc4_bo_unreference(&rsc->bo);
 104         free(rsc);
 105 }
 106
 107 static boolean
 108 vc4_resource_get_handle(struct pipe_screen *pscreen,
 109                         struct pipe_resource *prsc,
 110                         struct winsys_handle *handle)
 111 {
 112         struct vc4_resource *rsc = vc4_resource(prsc);
 113
 114         return vc4_screen_bo_get_handle(pscreen, rsc->bo, rsc->slices[0].stride,
 115                                         handle);
 116 }
 117
 118 static const struct u_resource_vtbl vc4_resource_vtbl = {
 119         .resource_get_handle      = vc4_resource_get_handle,
 120         .resource_destroy         = vc4_resource_destroy,
 121         .transfer_map             = vc4_resource_transfer_map,
 122         .transfer_flush_region    = u_default_transfer_flush_region,
 123         .transfer_unmap           = vc4_resource_transfer_unmap,
 124         .transfer_inline_write    = u_default_transfer_inline_write,
 125 };
 126
 127 static void
 128 vc4_setup_slices(struct vc4_resource *rsc)
 129 {
 130         struct pipe_resource *prsc = &rsc->base.b;
 131         uint32_t width = prsc->width0;
 132         uint32_t height = prsc->height0;
 133         uint32_t depth = prsc->depth0;
 134         uint32_t offset = 0;
 135
 136         for (int i = prsc->last_level; i >= 0; i--) {
 137                 struct vc4_resource_slice *slice = &rsc->slices[i];
 138                 uint32_t level_width = u_minify(width, i);
 139                 uint32_t level_height = u_minify(height, i);
 140
 141                 slice->offset = offset;
 142                 slice->stride = align(level_width * rsc->cpp, 16);
 143                 slice->size0 = level_height * slice->stride;
 144
 145                 /* Note, since we have cubes but no 3D, depth is invariant
 146                  * with miplevel.
 147                  */
 148                 offset += slice->size0 * depth;
 149         }
 150         /* XXX: align level 0 offset? */
 151 }
 152
 153 static struct vc4_resource *
 154 vc4_resource_setup(struct pipe_screen *pscreen,
 155                    const struct pipe_resource *tmpl)
 156 {
 157         struct vc4_resource *rsc = CALLOC_STRUCT(vc4_resource);
 158         if (!rsc)
 159                 return NULL;
 160         struct pipe_resource *prsc = &rsc->base.b;
 161
 162         *prsc = *tmpl;
 163
 164         pipe_reference_init(&prsc->reference, 1);
 165         prsc->screen = pscreen;
 166
 167         rsc->base.vtbl = &vc4_resource_vtbl;
 168         rsc->cpp = util_format_get_blocksize(tmpl->format);
 169
 170         assert(rsc->cpp);
 171
 172         return rsc;
 173 }
 174
 175 static struct pipe_resource *
 176 vc4_resource_create(struct pipe_screen *pscreen,
 177                     const struct pipe_resource *tmpl)
 178 {
 179         struct vc4_resource *rsc = vc4_resource_setup(pscreen, tmpl);
 180         struct pipe_resource *prsc = &rsc->base.b;
 181
 182         vc4_setup_slices(rsc);
 183
 184         rsc->tiling = VC4_TILING_FORMAT_LINEAR;
 185         rsc->bo = vc4_bo_alloc(vc4_screen(pscreen),
 186                                rsc->slices[0].offset +
 187                                rsc->slices[0].size0 * prsc->depth0,
 188                                "resource");
 189         if (!rsc->bo)
 190                 goto fail;
 191
 192         return prsc;
 193 fail:
 194         vc4_resource_destroy(pscreen, prsc);
 195         return NULL;
 196 }
 197
 198 static struct pipe_resource *
 199 vc4_resource_from_handle(struct pipe_screen *pscreen,
 200                          const struct pipe_resource *tmpl,
 201                          struct winsys_handle *handle)
 202 {
 203         struct vc4_resource *rsc = vc4_resource_setup(pscreen, tmpl);
 204         struct pipe_resource *prsc = &rsc->base.b;
 205         struct vc4_resource_slice *slice = &rsc->slices[0];
 206
 207         if (!rsc)
 208                 return NULL;
 209
 210         rsc->tiling = VC4_TILING_FORMAT_LINEAR;
 211         rsc->bo = vc4_screen_bo_from_handle(pscreen, handle, &slice->stride);
 212         if (!rsc->bo)
 213                 goto fail;
 214
 215 #ifdef USE_VC4_SIMULATOR
 216         slice->stride = align(prsc->width0 * rsc->cpp, 16);
 217 #endif
 218
 219         return prsc;
 220
 221 fail:
 222         vc4_resource_destroy(pscreen, prsc);
 223         return NULL;
 224 }
 225
 226 static struct pipe_surface *
 227 vc4_create_surface(struct pipe_context *pctx,
 228                    struct pipe_resource *ptex,
 229                    const struct pipe_surface *surf_tmpl)
 230 {
 231         struct vc4_surface *surface = CALLOC_STRUCT(vc4_surface);
 232
 233         if (!surface)
 234                 return NULL;
 235
 236         assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
 237
 238         struct pipe_surface *psurf = &surface->base;
 239         unsigned level = surf_tmpl->u.tex.level;
 240
 241         pipe_reference_init(&psurf->reference, 1);
 242         pipe_resource_reference(&psurf->texture, ptex);
 243
 244         psurf->context = pctx;
 245         psurf->format = surf_tmpl->format;
 246         psurf->width = u_minify(ptex->width0, level);
 247         psurf->height = u_minify(ptex->height0, level);
 248         psurf->u.tex.level = level;
 249         psurf->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 250         psurf->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 251
 252         return &surface->base;
 253 }
 254
 255 static void
 256 vc4_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
 257 {
 258         pipe_resource_reference(&psurf->texture, NULL);
 259         FREE(psurf);
 260 }
 261
 262 static void
 263 vc4_flush_resource(struct pipe_context *pctx, struct pipe_resource *resource)
 264 {
 265         struct vc4_context *vc4 = vc4_context(pctx);
 266
 267         /* XXX: Skip this if we don't have any queued drawing to it. */
 268         vc4->base.flush(pctx, NULL, 0);
 269 }
 270 static bool
 271 render_blit(struct pipe_context *ctx, struct pipe_blit_info *info)
 272 {
 273         struct vc4_context *vc4 = vc4_context(ctx);
 274
 275         if (!util_blitter_is_blit_supported(vc4->blitter, info)) {
 276                 fprintf(stderr, "blit unsupported %s -> %s",
 277                     util_format_short_name(info->src.resource->format),
 278                     util_format_short_name(info->dst.resource->format));
 279                 return false;
 280         }
 281
 282         util_blitter_save_vertex_buffer_slot(vc4->blitter, vc4->vertexbuf.vb);
 283         util_blitter_save_vertex_elements(vc4->blitter, vc4->vtx);
 284         util_blitter_save_vertex_shader(vc4->blitter, vc4->prog.vs);
 285         util_blitter_save_rasterizer(vc4->blitter, vc4->rasterizer);
 286         util_blitter_save_viewport(vc4->blitter, &vc4->viewport);
 287         util_blitter_save_scissor(vc4->blitter, &vc4->scissor);
 288         util_blitter_save_fragment_shader(vc4->blitter, vc4->prog.fs);
 289         util_blitter_save_blend(vc4->blitter, vc4->blend);
 290         util_blitter_save_depth_stencil_alpha(vc4->blitter, vc4->zsa);
 291         util_blitter_save_stencil_ref(vc4->blitter, &vc4->stencil_ref);
 292         util_blitter_save_sample_mask(vc4->blitter, vc4->sample_mask);
 293         util_blitter_save_framebuffer(vc4->blitter, &vc4->framebuffer);
 294         util_blitter_save_fragment_sampler_states(vc4->blitter,
 295                         vc4->fragtex.num_samplers,
 296                         (void **)vc4->fragtex.samplers);
 297         util_blitter_save_fragment_sampler_views(vc4->blitter,
 298                         vc4->fragtex.num_textures, vc4->fragtex.textures);
 299
 300         util_blitter_blit(vc4->blitter, info);
 301
 302         return true;
 303 }
 304
 305 /* Optimal hardware path for blitting pixels.
 306  * Scaling, format conversion, up- and downsampling (resolve) are allowed.
 307  */
 308 static void
 309 vc4_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
 310 {
 311         struct pipe_blit_info info = *blit_info;
 312
 313         if (info.src.resource->nr_samples > 1 &&
 314             info.dst.resource->nr_samples <= 1 &&
 315             !util_format_is_depth_or_stencil(info.src.resource->format) &&
 316             !util_format_is_pure_integer(info.src.resource->format)) {
 317                 fprintf(stderr, "color resolve unimplemented");
 318                 return;
 319         }
 320
 321         if (util_try_blit_via_copy_region(pctx, &info)) {
 322                 return; /* done */
 323         }
 324
 325         if (info.mask & PIPE_MASK_S) {
 326                 fprintf(stderr, "cannot blit stencil, skipping");
 327                 info.mask &= ~PIPE_MASK_S;
 328         }
 329
 330         render_blit(pctx, &info);
 331 }
 332
 333 void
 334 vc4_resource_screen_init(struct pipe_screen *pscreen)
 335 {
 336         pscreen->resource_create = vc4_resource_create;
 337         pscreen->resource_from_handle = vc4_resource_from_handle;
 338         pscreen->resource_get_handle = u_resource_get_handle_vtbl;
 339         pscreen->resource_destroy = u_resource_destroy_vtbl;
 340 }
 341
 342 void
 343 vc4_resource_context_init(struct pipe_context *pctx)
 344 {
 345         pctx->transfer_map = u_transfer_map_vtbl;
 346         pctx->transfer_flush_region = u_transfer_flush_region_vtbl;
 347         pctx->transfer_unmap = u_transfer_unmap_vtbl;
 348         pctx->transfer_inline_write = u_transfer_inline_write_vtbl;
 349         pctx->create_surface = vc4_create_surface;
 350         pctx->surface_destroy = vc4_surface_destroy;
 351         pctx->resource_copy_region = util_resource_copy_region;
 352         pctx->blit = vc4_blit;
 353         pctx->flush_resource = vc4_flush_resource;
 354 }