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 extern struct u_resource_vtbl r600_buffer_vtbl;
  43
  44 struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
  45                                          const struct pipe_resource *templ)
  46 {
  47         struct r600_resource_buffer *rbuffer;
  48         struct r600_bo *bo;
  49         /* XXX We probably want a different alignment for buffers and textures. */
  50         unsigned alignment = 4096;
  51
  52         rbuffer = CALLOC_STRUCT(r600_resource_buffer);
  53         if (rbuffer == NULL)
  54                 return NULL;
  55
  56         rbuffer->magic = R600_BUFFER_MAGIC;
  57         rbuffer->user_buffer = NULL;
  58         rbuffer->r.base.b = *templ;
  59         pipe_reference_init(&rbuffer->r.base.b.reference, 1);
  60         rbuffer->r.base.b.screen = screen;
  61         rbuffer->r.base.vtbl = &r600_buffer_vtbl;
  62         rbuffer->r.size = rbuffer->r.base.b.width0;
  63         rbuffer->r.bo_size = rbuffer->r.size;
  64         bo = r600_bo((struct radeon*)screen->winsys, rbuffer->r.base.b.width0, alignment, rbuffer->r.base.b.bind, rbuffer->r.base.b.usage);
  65         if (bo == NULL) {
  66                 FREE(rbuffer);
  67                 return NULL;
  68         }
  69         rbuffer->r.bo = bo;
  70         return &rbuffer->r.base.b;
  71 }
  72
  73 struct pipe_resource *r600_user_buffer_create(struct pipe_screen *screen,
  74                                               void *ptr, unsigned bytes,
  75                                               unsigned bind)
  76 {
  77         struct r600_resource_buffer *rbuffer;
  78
  79         rbuffer = CALLOC_STRUCT(r600_resource_buffer);
  80         if (rbuffer == NULL)
  81                 return NULL;
  82
  83         rbuffer->magic = R600_BUFFER_MAGIC;
  84         pipe_reference_init(&rbuffer->r.base.b.reference, 1);
  85         rbuffer->r.base.vtbl = &r600_buffer_vtbl;
  86         rbuffer->r.base.b.screen = screen;
  87         rbuffer->r.base.b.target = PIPE_BUFFER;
  88         rbuffer->r.base.b.format = PIPE_FORMAT_R8_UNORM;
  89         rbuffer->r.base.b.usage = PIPE_USAGE_IMMUTABLE;
  90         rbuffer->r.base.b.bind = bind;
  91         rbuffer->r.base.b.width0 = bytes;
  92         rbuffer->r.base.b.height0 = 1;
  93         rbuffer->r.base.b.depth0 = 1;
  94         rbuffer->r.base.b.array_size = 1;
  95         rbuffer->r.base.b.flags = 0;
  96         rbuffer->r.bo = NULL;
  97         rbuffer->r.bo_size = 0;
  98         rbuffer->user_buffer = ptr;
  99         return &rbuffer->r.base.b;
 100 }
 101
 102 static void r600_buffer_destroy(struct pipe_screen *screen,
 103                                 struct pipe_resource *buf)
 104 {
 105         struct r600_resource_buffer *rbuffer = r600_buffer(buf);
 106
 107         if (rbuffer->r.bo) {
 108                 r600_bo_reference((struct radeon*)screen->winsys, &rbuffer->r.bo, NULL);
 109         }
 110         rbuffer->r.bo = NULL;
 111         FREE(rbuffer);
 112 }
 113
 114 static void *r600_buffer_transfer_map(struct pipe_context *pipe,
 115                                       struct pipe_transfer *transfer)
 116 {
 117         struct r600_resource_buffer *rbuffer = r600_buffer(transfer->resource);
 118         int write = 0;
 119         uint8_t *data;
 120
 121         if (rbuffer->user_buffer)
 122                 return (uint8_t*)rbuffer->user_buffer + transfer->box.x;
 123
 124         if (transfer->usage & PIPE_TRANSFER_DONTBLOCK) {
 125                 /* FIXME */
 126         }
 127         if (transfer->usage & PIPE_TRANSFER_WRITE) {
 128                 write = 1;
 129         }
 130         data = r600_bo_map((struct radeon*)pipe->winsys, rbuffer->r.bo, transfer->usage, pipe);
 131         if (!data)
 132                 return NULL;
 133
 134         return (uint8_t*)data + transfer->box.x;
 135 }
 136
 137 static void r600_buffer_transfer_unmap(struct pipe_context *pipe,
 138                                         struct pipe_transfer *transfer)
 139 {
 140         struct r600_resource_buffer *rbuffer = r600_buffer(transfer->resource);
 141
 142         if (rbuffer->user_buffer)
 143                 return;
 144
 145         if (rbuffer->r.bo)
 146                 r600_bo_unmap((struct radeon*)pipe->winsys, rbuffer->r.bo);
 147 }
 148
 149 static void r600_buffer_transfer_flush_region(struct pipe_context *pipe,
 150                                                 struct pipe_transfer *transfer,
 151                                                 const struct pipe_box *box)
 152 {
 153 }
 154
 155 unsigned r600_buffer_is_referenced_by_cs(struct pipe_context *context,
 156                                          struct pipe_resource *buf,
 157                                          unsigned level, int layer)
 158 {
 159         /* FIXME */
 160         return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
 161 }
 162
 163 struct pipe_resource *r600_buffer_from_handle(struct pipe_screen *screen,
 164                                               struct winsys_handle *whandle)
 165 {
 166         struct radeon *rw = (struct radeon*)screen->winsys;
 167         struct r600_resource *rbuffer;
 168         struct r600_bo *bo = NULL;
 169
 170         bo = r600_bo_handle(rw, whandle->handle, NULL);
 171         if (bo == NULL) {
 172                 return NULL;
 173         }
 174
 175         rbuffer = CALLOC_STRUCT(r600_resource);
 176         if (rbuffer == NULL) {
 177                 r600_bo_reference(rw, &bo, NULL);
 178                 return NULL;
 179         }
 180
 181         pipe_reference_init(&rbuffer->base.b.reference, 1);
 182         rbuffer->base.b.target = PIPE_BUFFER;
 183         rbuffer->base.b.screen = screen;
 184         rbuffer->base.vtbl = &r600_buffer_vtbl;
 185         rbuffer->bo = bo;
 186         return &rbuffer->base.b;
 187 }
 188
 189 struct u_resource_vtbl r600_buffer_vtbl =
 190 {
 191         u_default_resource_get_handle,          /* get_handle */
 192         r600_buffer_destroy,                    /* resource_destroy */
 193         r600_buffer_is_referenced_by_cs,        /* is_buffer_referenced */
 194         u_default_get_transfer,                 /* get_transfer */
 195         u_default_transfer_destroy,             /* transfer_destroy */
 196         r600_buffer_transfer_map,               /* transfer_map */
 197         r600_buffer_transfer_flush_region,      /* transfer_flush_region */
 198         r600_buffer_transfer_unmap,             /* transfer_unmap */
 199         u_default_transfer_inline_write         /* transfer_inline_write */
 200 };
 201
 202 void r600_upload_index_buffer(struct r600_pipe_context *rctx, struct r600_drawl *draw)
 203 {
 204
 205         if (r600_is_user_buffer(draw->index_buffer)) {
 206                 struct r600_resource_buffer *rbuffer = r600_buffer(draw->index_buffer);
 207                 boolean flushed;
 208
 209                 u_upload_data(rctx->upload_vb, 0,
 210                               draw->info.count * draw->index_size,
 211                               rbuffer->user_buffer,
 212                               &draw->index_buffer_offset,
 213                               &draw->index_buffer, &flushed);
 214         }
 215 }
 216
 217 void r600_upload_user_buffers(struct r600_pipe_context *rctx)
 218 {
 219         int i, nr;
 220
 221         nr = rctx->vertex_elements->count;
 222         nr = rctx->nvertex_buffer;
 223
 224         for (i = 0; i < nr; i++) {
 225                 struct pipe_vertex_buffer *vb = &rctx->vertex_buffer[i];
 226
 227                 if (r600_is_user_buffer(vb->buffer)) {
 228                         struct r600_resource_buffer *rbuffer = r600_buffer(vb->buffer);
 229                         boolean flushed;
 230
 231                         u_upload_data(rctx->upload_vb, 0,
 232                                       vb->buffer->width0,
 233                                       rbuffer->user_buffer,
 234                                       &vb->buffer_offset,
 235                                       &vb->buffer,
 236                                       &flushed);
 237                 }
 238         }
 239 }
 240
 241 void r600_upload_const_buffer(struct r600_pipe_context *rctx, struct r600_resource_buffer **rbuffer,
 242                              uint32_t *const_offset)
 243 {
 244         if ((*rbuffer)->user_buffer) {
 245                 uint8_t *ptr = (*rbuffer)->user_buffer;
 246                 unsigned size = (*rbuffer)->r.base.b.width0;
 247                 boolean flushed;
 248
 249                 *rbuffer = NULL;
 250
 251                 u_upload_data(rctx->upload_const, 0, size, ptr, const_offset,
 252                               (struct pipe_resource**)rbuffer, &flushed);
 253         } else {
 254                 *const_offset = 0;
 255         }
 256 }