src/gallium/drivers/r600/r600_buffer.c

   1 /*
   2  * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
   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  * Authors:
  24  *      Jerome Glisse
  25  *      Corbin Simpson <MostAwesomeDude@gmail.com>
  26  */
  27 #include <pipe/p_screen.h>
  28 #include <util/u_format.h>
  29 #include <util/u_math.h>
  30 #include <util/u_inlines.h>
  31 #include <util/u_memory.h>
  32 #include "util/u_upload_mgr.h"
  33
  34 #include "state_tracker/drm_driver.h"
  35
  36 #include <xf86drm.h>
  37 #include "radeon_drm.h"
  38
  39 #include "r600.h"
  40 #include "r600_pipe.h"
  41
  42 static void r600_buffer_destroy(struct pipe_screen *screen,
  43                                 struct pipe_resource *buf)
  44 {
  45         struct r600_screen *rscreen = (struct r600_screen*)screen;
  46         struct r600_resource_buffer *rbuffer = r600_buffer(buf);
  47
  48         if (rbuffer->r.bo) {
  49                 r600_bo_reference((struct radeon*)screen->winsys, &rbuffer->r.bo, NULL);
  50         }
  51         rbuffer->r.bo = NULL;
  52         util_slab_free(&rscreen->pool_buffers, rbuffer);
  53 }
  54
  55 static unsigned r600_buffer_is_referenced_by_cs(struct pipe_context *context,
  56                                                 struct pipe_resource *buf,
  57                                                 unsigned level, int layer)
  58 {
  59         /* FIXME */
  60         return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
  61 }
  62
  63 static struct pipe_transfer *r600_get_transfer(struct pipe_context *ctx,
  64                                                struct pipe_resource *resource,
  65                                                unsigned level,
  66                                                unsigned usage,
  67                                                const struct pipe_box *box)
  68 {
  69         struct r600_pipe_context *rctx = (struct r600_pipe_context*)ctx;
  70         struct pipe_transfer *transfer = util_slab_alloc(&rctx->pool_transfers);
  71
  72         transfer->resource = resource;
  73         transfer->level = level;
  74         transfer->usage = usage;
  75         transfer->box = *box;
  76         transfer->stride = 0;
  77         transfer->layer_stride = 0;
  78         transfer->data = NULL;
  79
  80         /* Note strides are zero, this is ok for buffers, but not for
  81          * textures 2d & higher at least.
  82          */
  83         return transfer;
  84 }
  85
  86 static void *r600_buffer_transfer_map(struct pipe_context *pipe,
  87                                       struct pipe_transfer *transfer)
  88 {
  89         struct r600_resource_buffer *rbuffer = r600_buffer(transfer->resource);
  90         int write = 0;
  91         uint8_t *data;
  92
  93         if (rbuffer->r.b.user_ptr)
  94                 return (uint8_t*)rbuffer->r.b.user_ptr + transfer->box.x;
  95
  96         if (transfer->usage & PIPE_TRANSFER_DONTBLOCK) {
  97                 /* FIXME */
  98         }
  99         if (transfer->usage & PIPE_TRANSFER_WRITE) {
 100                 write = 1;
 101         }
 102         data = r600_bo_map((struct radeon*)pipe->winsys, rbuffer->r.bo, transfer->usage, pipe);
 103         if (!data)
 104                 return NULL;
 105
 106         return (uint8_t*)data + transfer->box.x;
 107 }
 108
 109 static void r600_buffer_transfer_unmap(struct pipe_context *pipe,
 110                                         struct pipe_transfer *transfer)
 111 {
 112         struct r600_resource_buffer *rbuffer = r600_buffer(transfer->resource);
 113
 114         if (rbuffer->r.b.user_ptr)
 115                 return;
 116
 117         if (rbuffer->r.bo)
 118                 r600_bo_unmap((struct radeon*)pipe->winsys, rbuffer->r.bo);
 119 }
 120
 121 static void r600_buffer_transfer_flush_region(struct pipe_context *pipe,
 122                                                 struct pipe_transfer *transfer,
 123                                                 const struct pipe_box *box)
 124 {
 125 }
 126
 127 static void r600_transfer_destroy(struct pipe_context *ctx,
 128                                   struct pipe_transfer *transfer)
 129 {
 130         struct r600_pipe_context *rctx = (struct r600_pipe_context*)ctx;
 131         util_slab_free(&rctx->pool_transfers, transfer);
 132 }
 133
 134 static void r600_buffer_transfer_inline_write(struct pipe_context *pipe,
 135                                               struct pipe_resource *resource,
 136                                               unsigned level,
 137                                               unsigned usage,
 138                                               const struct pipe_box *box,
 139                                               const void *data,
 140                                               unsigned stride,
 141                                               unsigned layer_stride)
 142 {
 143         struct radeon *ws = (struct radeon*)pipe->winsys;
 144         struct r600_resource_buffer *rbuffer = r600_buffer(resource);
 145         uint8_t *map = NULL;
 146
 147         assert(rbuffer->r.b.user_ptr == NULL);
 148
 149         map = r600_bo_map(ws, rbuffer->r.bo,
 150                           PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD | usage,
 151                           pipe);
 152
 153         memcpy(map + box->x, data, box->width);
 154
 155         if (rbuffer->r.bo)
 156                 r600_bo_unmap(ws, rbuffer->r.bo);
 157 }
 158
 159 static const struct u_resource_vtbl r600_buffer_vtbl =
 160 {
 161         u_default_resource_get_handle,          /* get_handle */
 162         r600_buffer_destroy,                    /* resource_destroy */
 163         r600_buffer_is_referenced_by_cs,        /* is_buffer_referenced */
 164         r600_get_transfer,                      /* get_transfer */
 165         r600_transfer_destroy,                  /* transfer_destroy */
 166         r600_buffer_transfer_map,               /* transfer_map */
 167         r600_buffer_transfer_flush_region,      /* transfer_flush_region */
 168         r600_buffer_transfer_unmap,             /* transfer_unmap */
 169         r600_buffer_transfer_inline_write       /* transfer_inline_write */
 170 };
 171
 172 struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
 173                                          const struct pipe_resource *templ)
 174 {
 175         struct r600_screen *rscreen = (struct r600_screen*)screen;
 176         struct r600_resource_buffer *rbuffer;
 177         struct r600_bo *bo;
 178         /* XXX We probably want a different alignment for buffers and textures. */
 179         unsigned alignment = 4096;
 180
 181         rbuffer = util_slab_alloc(&rscreen->pool_buffers);
 182
 183         rbuffer->magic = R600_BUFFER_MAGIC;
 184         rbuffer->r.b.b.b = *templ;
 185         pipe_reference_init(&rbuffer->r.b.b.b.reference, 1);
 186         rbuffer->r.b.b.b.screen = screen;
 187         rbuffer->r.b.b.vtbl = &r600_buffer_vtbl;
 188         rbuffer->r.b.user_ptr = NULL;
 189         rbuffer->r.size = rbuffer->r.b.b.b.width0;
 190         rbuffer->r.bo_size = rbuffer->r.size;
 191
 192         bo = r600_bo((struct radeon*)screen->winsys,
 193                      rbuffer->r.b.b.b.width0,
 194                      alignment, rbuffer->r.b.b.b.bind,
 195                      rbuffer->r.b.b.b.usage);
 196
 197         if (bo == NULL) {
 198                 FREE(rbuffer);
 199                 return NULL;
 200         }
 201         rbuffer->r.bo = bo;
 202         return &rbuffer->r.b.b.b;
 203 }
 204
 205 struct pipe_resource *r600_user_buffer_create(struct pipe_screen *screen,
 206                                               void *ptr, unsigned bytes,
 207                                               unsigned bind)
 208 {
 209         struct r600_screen *rscreen = (struct r600_screen*)screen;
 210         struct r600_resource_buffer *rbuffer;
 211
 212         rbuffer = util_slab_alloc(&rscreen->pool_buffers);
 213
 214         rbuffer->magic = R600_BUFFER_MAGIC;
 215         pipe_reference_init(&rbuffer->r.b.b.b.reference, 1);
 216         rbuffer->r.b.b.vtbl = &r600_buffer_vtbl;
 217         rbuffer->r.b.b.b.screen = screen;
 218         rbuffer->r.b.b.b.target = PIPE_BUFFER;
 219         rbuffer->r.b.b.b.format = PIPE_FORMAT_R8_UNORM;
 220         rbuffer->r.b.b.b.usage = PIPE_USAGE_IMMUTABLE;
 221         rbuffer->r.b.b.b.bind = bind;
 222         rbuffer->r.b.b.b.width0 = bytes;
 223         rbuffer->r.b.b.b.height0 = 1;
 224         rbuffer->r.b.b.b.depth0 = 1;
 225         rbuffer->r.b.b.b.array_size = 1;
 226         rbuffer->r.b.b.b.flags = 0;
 227         rbuffer->r.b.user_ptr = ptr;
 228         rbuffer->r.bo = NULL;
 229         rbuffer->r.bo_size = 0;
 230         return &rbuffer->r.b.b.b;
 231 }
 232
 233 struct pipe_resource *r600_buffer_from_handle(struct pipe_screen *screen,
 234                                               struct winsys_handle *whandle)
 235 {
 236         struct radeon *rw = (struct radeon*)screen->winsys;
 237         struct r600_resource *rbuffer;
 238         struct r600_bo *bo = NULL;
 239
 240         bo = r600_bo_handle(rw, whandle->handle, NULL);
 241         if (bo == NULL) {
 242                 return NULL;
 243         }
 244
 245         rbuffer = CALLOC_STRUCT(r600_resource);
 246         if (rbuffer == NULL) {
 247                 r600_bo_reference(rw, &bo, NULL);
 248                 return NULL;
 249         }
 250
 251         pipe_reference_init(&rbuffer->b.b.b.reference, 1);
 252         rbuffer->b.b.b.target = PIPE_BUFFER;
 253         rbuffer->b.b.b.screen = screen;
 254         rbuffer->b.b.vtbl = &r600_buffer_vtbl;
 255         rbuffer->bo = bo;
 256         return &rbuffer->b.b.b;
 257 }
 258
 259 void r600_upload_index_buffer(struct r600_pipe_context *rctx, struct r600_drawl *draw)
 260 {
 261         struct r600_resource_buffer *rbuffer = r600_buffer(draw->index_buffer);
 262         boolean flushed;
 263
 264         u_upload_data(rctx->vbuf_mgr->uploader, 0,
 265                       draw->info.count * draw->index_size,
 266                       rbuffer->r.b.user_ptr,
 267                       &draw->index_buffer_offset,
 268                       &draw->index_buffer, &flushed);
 269 }
 270
 271 void r600_upload_const_buffer(struct r600_pipe_context *rctx, struct r600_resource_buffer **rbuffer,
 272                              uint32_t *const_offset)
 273 {
 274         if ((*rbuffer)->r.b.user_ptr) {
 275                 uint8_t *ptr = (*rbuffer)->r.b.user_ptr;
 276                 unsigned size = (*rbuffer)->r.b.b.b.width0;
 277                 boolean flushed;
 278
 279                 *rbuffer = NULL;
 280
 281                 u_upload_data(rctx->vbuf_mgr->uploader, 0, size, ptr, const_offset,
 282                               (struct pipe_resource**)rbuffer, &flushed);
 283         } else {
 284                 *const_offset = 0;
 285         }
 286 }