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 <byteswap.h>
  28
  29 #include <pipe/p_screen.h>
  30 #include <util/u_format.h>
  31 #include <util/u_math.h>
  32 #include <util/u_inlines.h>
  33 #include <util/u_memory.h>
  34 #include "util/u_upload_mgr.h"
  35
  36 #include "state_tracker/drm_driver.h"
  37
  38 #include <xf86drm.h>
  39 #include "radeon_drm.h"
  40
  41 #include "r600.h"
  42 #include "r600_pipe.h"
  43
  44 static void r600_buffer_destroy(struct pipe_screen *screen,
  45                                 struct pipe_resource *buf)
  46 {
  47         struct r600_screen *rscreen = (struct r600_screen*)screen;
  48         struct r600_resource_buffer *rbuffer = r600_buffer(buf);
  49
  50         if (rbuffer->r.bo) {
  51                 r600_bo_reference((struct radeon*)screen->winsys, &rbuffer->r.bo, NULL);
  52         }
  53         rbuffer->r.bo = NULL;
  54         util_slab_free(&rscreen->pool_buffers, rbuffer);
  55 }
  56
  57 static struct pipe_transfer *r600_get_transfer(struct pipe_context *ctx,
  58                                                struct pipe_resource *resource,
  59                                                unsigned level,
  60                                                unsigned usage,
  61                                                const struct pipe_box *box)
  62 {
  63         struct r600_pipe_context *rctx = (struct r600_pipe_context*)ctx;
  64         struct pipe_transfer *transfer = util_slab_alloc(&rctx->pool_transfers);
  65
  66         transfer->resource = resource;
  67         transfer->level = level;
  68         transfer->usage = usage;
  69         transfer->box = *box;
  70         transfer->stride = 0;
  71         transfer->layer_stride = 0;
  72         transfer->data = NULL;
  73
  74         /* Note strides are zero, this is ok for buffers, but not for
  75          * textures 2d & higher at least.
  76          */
  77         return transfer;
  78 }
  79
  80 static void *r600_buffer_transfer_map(struct pipe_context *pipe,
  81                                       struct pipe_transfer *transfer)
  82 {
  83         struct r600_resource_buffer *rbuffer = r600_buffer(transfer->resource);
  84         int write = 0;
  85         uint8_t *data;
  86
  87         if (rbuffer->r.b.user_ptr)
  88                 return (uint8_t*)rbuffer->r.b.user_ptr + transfer->box.x;
  89
  90         if (transfer->usage & PIPE_TRANSFER_DONTBLOCK) {
  91                 /* FIXME */
  92         }
  93         if (transfer->usage & PIPE_TRANSFER_WRITE) {
  94                 write = 1;
  95         }
  96         data = r600_bo_map((struct radeon*)pipe->winsys, rbuffer->r.bo, transfer->usage, pipe);
  97         if (!data)
  98                 return NULL;
  99
 100         return (uint8_t*)data + transfer->box.x;
 101 }
 102
 103 static void r600_buffer_transfer_unmap(struct pipe_context *pipe,
 104                                         struct pipe_transfer *transfer)
 105 {
 106         struct r600_resource_buffer *rbuffer = r600_buffer(transfer->resource);
 107
 108         if (rbuffer->r.b.user_ptr)
 109                 return;
 110
 111         if (rbuffer->r.bo)
 112                 r600_bo_unmap((struct radeon*)pipe->winsys, rbuffer->r.bo);
 113 }
 114
 115 static void r600_buffer_transfer_flush_region(struct pipe_context *pipe,
 116                                                 struct pipe_transfer *transfer,
 117                                                 const struct pipe_box *box)
 118 {
 119 }
 120
 121 static void r600_transfer_destroy(struct pipe_context *ctx,
 122                                   struct pipe_transfer *transfer)
 123 {
 124         struct r600_pipe_context *rctx = (struct r600_pipe_context*)ctx;
 125         util_slab_free(&rctx->pool_transfers, transfer);
 126 }
 127
 128 static void r600_buffer_transfer_inline_write(struct pipe_context *pipe,
 129                                                 struct pipe_resource *resource,
 130                                                 unsigned level,
 131                                                 unsigned usage,
 132                                                 const struct pipe_box *box,
 133                                                 const void *data,
 134                                                 unsigned stride,
 135                                                 unsigned layer_stride)
 136 {
 137         struct radeon *ws = (struct radeon*)pipe->winsys;
 138         struct r600_resource_buffer *rbuffer = r600_buffer(resource);
 139         uint8_t *map = NULL;
 140
 141         assert(rbuffer->r.b.user_ptr == NULL);
 142
 143         map = r600_bo_map(ws, rbuffer->r.bo,
 144                           PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD | usage,
 145                           pipe);
 146
 147         memcpy(map + box->x, data, box->width);
 148
 149         if (rbuffer->r.bo)
 150                 r600_bo_unmap(ws, rbuffer->r.bo);
 151 }
 152
 153 static const struct u_resource_vtbl r600_buffer_vtbl =
 154 {
 155         u_default_resource_get_handle,          /* get_handle */
 156         r600_buffer_destroy,                    /* resource_destroy */
 157         r600_get_transfer,                      /* get_transfer */
 158         r600_transfer_destroy,                  /* transfer_destroy */
 159         r600_buffer_transfer_map,               /* transfer_map */
 160         r600_buffer_transfer_flush_region,      /* transfer_flush_region */
 161         r600_buffer_transfer_unmap,             /* transfer_unmap */
 162         r600_buffer_transfer_inline_write       /* transfer_inline_write */
 163 };
 164
 165 struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
 166                                          const struct pipe_resource *templ)
 167 {
 168         struct r600_screen *rscreen = (struct r600_screen*)screen;
 169         struct r600_resource_buffer *rbuffer;
 170         struct r600_bo *bo;
 171         /* XXX We probably want a different alignment for buffers and textures. */
 172         unsigned alignment = 4096;
 173
 174         rbuffer = util_slab_alloc(&rscreen->pool_buffers);
 175
 176         rbuffer->magic = R600_BUFFER_MAGIC;
 177         rbuffer->r.b.b.b = *templ;
 178         pipe_reference_init(&rbuffer->r.b.b.b.reference, 1);
 179         rbuffer->r.b.b.b.screen = screen;
 180         rbuffer->r.b.b.vtbl = &r600_buffer_vtbl;
 181         rbuffer->r.b.user_ptr = NULL;
 182         rbuffer->r.size = rbuffer->r.b.b.b.width0;
 183         rbuffer->r.bo_size = rbuffer->r.size;
 184
 185         bo = r600_bo((struct radeon*)screen->winsys,
 186                      rbuffer->r.b.b.b.width0,
 187                      alignment, rbuffer->r.b.b.b.bind,
 188                      rbuffer->r.b.b.b.usage);
 189
 190         if (bo == NULL) {
 191                 FREE(rbuffer);
 192                 return NULL;
 193         }
 194         rbuffer->r.bo = bo;
 195         return &rbuffer->r.b.b.b;
 196 }
 197
 198 struct pipe_resource *r600_user_buffer_create(struct pipe_screen *screen,
 199                                               void *ptr, unsigned bytes,
 200                                               unsigned bind)
 201 {
 202         struct r600_screen *rscreen = (struct r600_screen*)screen;
 203         struct r600_resource_buffer *rbuffer;
 204
 205         rbuffer = util_slab_alloc(&rscreen->pool_buffers);
 206
 207         rbuffer->magic = R600_BUFFER_MAGIC;
 208         pipe_reference_init(&rbuffer->r.b.b.b.reference, 1);
 209         rbuffer->r.b.b.vtbl = &r600_buffer_vtbl;
 210         rbuffer->r.b.b.b.screen = screen;
 211         rbuffer->r.b.b.b.target = PIPE_BUFFER;
 212         rbuffer->r.b.b.b.format = PIPE_FORMAT_R8_UNORM;
 213         rbuffer->r.b.b.b.usage = PIPE_USAGE_IMMUTABLE;
 214         rbuffer->r.b.b.b.bind = bind;
 215         rbuffer->r.b.b.b.width0 = bytes;
 216         rbuffer->r.b.b.b.height0 = 1;
 217         rbuffer->r.b.b.b.depth0 = 1;
 218         rbuffer->r.b.b.b.array_size = 1;
 219         rbuffer->r.b.b.b.flags = 0;
 220         rbuffer->r.b.user_ptr = ptr;
 221         rbuffer->r.bo = NULL;
 222         rbuffer->r.bo_size = 0;
 223         return &rbuffer->r.b.b.b;
 224 }
 225
 226 struct pipe_resource *r600_buffer_from_handle(struct pipe_screen *screen,
 227                                               struct winsys_handle *whandle)
 228 {
 229         struct radeon *rw = (struct radeon*)screen->winsys;
 230         struct r600_resource *rbuffer;
 231         struct r600_bo *bo = NULL;
 232
 233         bo = r600_bo_handle(rw, whandle->handle, NULL);
 234         if (bo == NULL) {
 235                 return NULL;
 236         }
 237
 238         rbuffer = CALLOC_STRUCT(r600_resource);
 239         if (rbuffer == NULL) {
 240                 r600_bo_reference(rw, &bo, NULL);
 241                 return NULL;
 242         }
 243
 244         pipe_reference_init(&rbuffer->b.b.b.reference, 1);
 245         rbuffer->b.b.b.target = PIPE_BUFFER;
 246         rbuffer->b.b.b.screen = screen;
 247         rbuffer->b.b.vtbl = &r600_buffer_vtbl;
 248         rbuffer->bo = bo;
 249         return &rbuffer->b.b.b;
 250 }
 251
 252 void r600_upload_index_buffer(struct r600_pipe_context *rctx, struct r600_drawl *draw)
 253 {
 254         struct r600_resource_buffer *rbuffer = r600_buffer(draw->index_buffer);
 255         boolean flushed;
 256
 257         u_upload_data(rctx->vbuf_mgr->uploader, 0,
 258                       draw->info.count * draw->index_size,
 259                       rbuffer->r.b.user_ptr,
 260                       &draw->index_buffer_offset,
 261                       &draw->index_buffer, &flushed);
 262 }
 263
 264 void r600_upload_const_buffer(struct r600_pipe_context *rctx, struct r600_resource_buffer **rbuffer,
 265                              uint32_t *const_offset)
 266 {
 267         if ((*rbuffer)->r.b.user_ptr) {
 268                 uint8_t *ptr = (*rbuffer)->r.b.user_ptr;
 269                 unsigned size = (*rbuffer)->r.b.b.b.width0;
 270                 boolean flushed;
 271 #ifdef PIPE_ARCH_BIG_ENDIAN
 272                 int i;
 273                 uint32_t *tmpPtr;
 274
 275                 *rbuffer = NULL;
 276
 277                 tmpPtr = (uint32_t *)malloc(size);
 278                 /* big endian swap */
 279                 if(tmpPtr == NULL) {
 280                         return;
 281                 }
 282                 for(i = 0; i < size / 4; i++) {
 283                         tmpPtr[i] = bswap_32(*((uint32_t *)ptr + i));
 284                 }
 285
 286                 u_upload_data(rctx->vbuf_mgr->uploader, 0, size, tmpPtr, const_offset,
 287                               (struct pipe_resource**)rbuffer, &flushed);
 288
 289                 free(tmpPtr);
 290 #else
 291                 *rbuffer = NULL;
 292
 293                 u_upload_data(rctx->vbuf_mgr->uploader, 0, size, ptr, const_offset,
 294                               (struct pipe_resource**)rbuffer, &flushed);
 295 #endif
 296         } else {
 297                 *const_offset = 0;
 298         }
 299 }