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_resource_buffer *rbuffer = r600_buffer(buf);
  46
  47         if (rbuffer->r.bo) {
  48                 r600_bo_reference((struct radeon*)screen->winsys, &rbuffer->r.bo, NULL);
  49         }
  50         rbuffer->r.bo = NULL;
  51         FREE(rbuffer);
  52 }
  53
  54 static unsigned r600_buffer_is_referenced_by_cs(struct pipe_context *context,
  55                                                 struct pipe_resource *buf,
  56                                                 unsigned level, int layer)
  57 {
  58         /* FIXME */
  59         return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
  60 }
  61
  62 static void *r600_buffer_transfer_map(struct pipe_context *pipe,
  63                                       struct pipe_transfer *transfer)
  64 {
  65         struct r600_resource_buffer *rbuffer = r600_buffer(transfer->resource);
  66         int write = 0;
  67         uint8_t *data;
  68
  69         if (rbuffer->user_buffer)
  70                 return (uint8_t*)rbuffer->user_buffer + transfer->box.x;
  71
  72         if (transfer->usage & PIPE_TRANSFER_DONTBLOCK) {
  73                 /* FIXME */
  74         }
  75         if (transfer->usage & PIPE_TRANSFER_WRITE) {
  76                 write = 1;
  77         }
  78         data = r600_bo_map((struct radeon*)pipe->winsys, rbuffer->r.bo, transfer->usage, pipe);
  79         if (!data)
  80                 return NULL;
  81
  82         return (uint8_t*)data + transfer->box.x;
  83 }
  84
  85 static void r600_buffer_transfer_unmap(struct pipe_context *pipe,
  86                                         struct pipe_transfer *transfer)
  87 {
  88         struct r600_resource_buffer *rbuffer = r600_buffer(transfer->resource);
  89
  90         if (rbuffer->user_buffer)
  91                 return;
  92
  93         if (rbuffer->r.bo)
  94                 r600_bo_unmap((struct radeon*)pipe->winsys, rbuffer->r.bo);
  95 }
  96
  97 static void r600_buffer_transfer_flush_region(struct pipe_context *pipe,
  98                                                 struct pipe_transfer *transfer,
  99                                                 const struct pipe_box *box)
 100 {
 101 }
 102
 103 static const struct u_resource_vtbl r600_buffer_vtbl =
 104 {
 105         u_default_resource_get_handle,          /* get_handle */
 106         r600_buffer_destroy,                    /* resource_destroy */
 107         r600_buffer_is_referenced_by_cs,        /* is_buffer_referenced */
 108         u_default_get_transfer,                 /* get_transfer */
 109         u_default_transfer_destroy,             /* transfer_destroy */
 110         r600_buffer_transfer_map,               /* transfer_map */
 111         r600_buffer_transfer_flush_region,      /* transfer_flush_region */
 112         r600_buffer_transfer_unmap,             /* transfer_unmap */
 113         u_default_transfer_inline_write         /* transfer_inline_write */
 114 };
 115
 116 struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
 117                                          const struct pipe_resource *templ)
 118 {
 119         struct r600_resource_buffer *rbuffer;
 120         struct r600_bo *bo;
 121         /* XXX We probably want a different alignment for buffers and textures. */
 122         unsigned alignment = 4096;
 123
 124         rbuffer = CALLOC_STRUCT(r600_resource_buffer);
 125         if (rbuffer == NULL)
 126                 return NULL;
 127
 128         rbuffer->magic = R600_BUFFER_MAGIC;
 129         rbuffer->user_buffer = NULL;
 130         rbuffer->r.base.b = *templ;
 131         pipe_reference_init(&rbuffer->r.base.b.reference, 1);
 132         rbuffer->r.base.b.screen = screen;
 133         rbuffer->r.base.vtbl = &r600_buffer_vtbl;
 134         rbuffer->r.size = rbuffer->r.base.b.width0;
 135         rbuffer->r.bo_size = rbuffer->r.size;
 136         bo = r600_bo((struct radeon*)screen->winsys, rbuffer->r.base.b.width0, alignment, rbuffer->r.base.b.bind, rbuffer->r.base.b.usage);
 137         if (bo == NULL) {
 138                 FREE(rbuffer);
 139                 return NULL;
 140         }
 141         rbuffer->r.bo = bo;
 142         return &rbuffer->r.base.b;
 143 }
 144
 145 struct pipe_resource *r600_user_buffer_create(struct pipe_screen *screen,
 146                                               void *ptr, unsigned bytes,
 147                                               unsigned bind)
 148 {
 149         struct r600_resource_buffer *rbuffer;
 150
 151         rbuffer = CALLOC_STRUCT(r600_resource_buffer);
 152         if (rbuffer == NULL)
 153                 return NULL;
 154
 155         rbuffer->magic = R600_BUFFER_MAGIC;
 156         pipe_reference_init(&rbuffer->r.base.b.reference, 1);
 157         rbuffer->r.base.vtbl = &r600_buffer_vtbl;
 158         rbuffer->r.base.b.screen = screen;
 159         rbuffer->r.base.b.target = PIPE_BUFFER;
 160         rbuffer->r.base.b.format = PIPE_FORMAT_R8_UNORM;
 161         rbuffer->r.base.b.usage = PIPE_USAGE_IMMUTABLE;
 162         rbuffer->r.base.b.bind = bind;
 163         rbuffer->r.base.b.width0 = bytes;
 164         rbuffer->r.base.b.height0 = 1;
 165         rbuffer->r.base.b.depth0 = 1;
 166         rbuffer->r.base.b.array_size = 1;
 167         rbuffer->r.base.b.flags = 0;
 168         rbuffer->r.bo = NULL;
 169         rbuffer->r.bo_size = 0;
 170         rbuffer->user_buffer = ptr;
 171         return &rbuffer->r.base.b;
 172 }
 173
 174 struct pipe_resource *r600_buffer_from_handle(struct pipe_screen *screen,
 175                                               struct winsys_handle *whandle)
 176 {
 177         struct radeon *rw = (struct radeon*)screen->winsys;
 178         struct r600_resource *rbuffer;
 179         struct r600_bo *bo = NULL;
 180
 181         bo = r600_bo_handle(rw, whandle->handle, NULL);
 182         if (bo == NULL) {
 183                 return NULL;
 184         }
 185
 186         rbuffer = CALLOC_STRUCT(r600_resource);
 187         if (rbuffer == NULL) {
 188                 r600_bo_reference(rw, &bo, NULL);
 189                 return NULL;
 190         }
 191
 192         pipe_reference_init(&rbuffer->base.b.reference, 1);
 193         rbuffer->base.b.target = PIPE_BUFFER;
 194         rbuffer->base.b.screen = screen;
 195         rbuffer->base.vtbl = &r600_buffer_vtbl;
 196         rbuffer->bo = bo;
 197         return &rbuffer->base.b;
 198 }
 199
 200 void r600_upload_index_buffer(struct r600_pipe_context *rctx, struct r600_drawl *draw)
 201 {
 202         struct r600_resource_buffer *rbuffer = r600_buffer(draw->index_buffer);
 203         boolean flushed;
 204
 205         u_upload_data(rctx->upload_vb, 0,
 206                       draw->info.count * draw->index_size,
 207                       rbuffer->user_buffer,
 208                       &draw->index_buffer_offset,
 209                       &draw->index_buffer, &flushed);
 210 }
 211
 212 void r600_upload_user_buffers(struct r600_pipe_context *rctx,
 213                               int min_index, int max_index)
 214 {
 215         int i, nr = rctx->vertex_elements->count;
 216         unsigned count = max_index + 1 - min_index;
 217         boolean flushed;
 218         boolean uploaded[32] = {0};
 219
 220         for (i = 0; i < nr; i++) {
 221                 unsigned index = rctx->vertex_elements->elements[i].vertex_buffer_index;
 222                 struct pipe_vertex_buffer *vb = &rctx->vertex_buffer[index];
 223                 struct r600_resource_buffer *userbuf = r600_buffer(vb->buffer);
 224
 225                 if (userbuf && userbuf->user_buffer && !uploaded[index]) {
 226                         unsigned first, size;
 227
 228                         if (vb->stride) {
 229                             first = vb->stride * min_index;
 230                             size = vb->stride * count;
 231                         } else {
 232                             first = 0;
 233                             size = rctx->vertex_elements->hw_format_size[i];
 234                         }
 235
 236                         u_upload_data(rctx->upload_vb, first, size,
 237                                       (uint8_t*)userbuf->user_buffer + first,
 238                                       &vb->buffer_offset,
 239                                       &rctx->real_vertex_buffer[index],
 240                                       &flushed);
 241
 242                         vb->buffer_offset -= first;
 243
 244                         /* vertex_arrays_dirty = TRUE; */
 245                         uploaded[index] = TRUE;
 246                 } else {
 247                         assert(rctx->real_vertex_buffer[index]);
 248                 }
 249         }
 250 }
 251
 252 void r600_upload_const_buffer(struct r600_pipe_context *rctx, struct r600_resource_buffer **rbuffer,
 253                              uint32_t *const_offset)
 254 {
 255         if ((*rbuffer)->user_buffer) {
 256                 uint8_t *ptr = (*rbuffer)->user_buffer;
 257                 unsigned size = (*rbuffer)->r.base.b.width0;
 258                 boolean flushed;
 259
 260                 *rbuffer = NULL;
 261
 262                 u_upload_data(rctx->upload_const, 0, size, ptr, const_offset,
 263                               (struct pipe_resource**)rbuffer, &flushed);
 264         } else {
 265                 *const_offset = 0;
 266         }
 267 }