src/gallium/drivers/radeonsi/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
  28 #include "pipe/p_screen.h"
  29 #include "util/u_format.h"
  30 #include "util/u_math.h"
  31 #include "util/u_inlines.h"
  32 #include "util/u_memory.h"
  33 #include "util/u_upload_mgr.h"
  34
  35 #include "r600.h"
  36 #include "radeonsi_pipe.h"
  37
  38 static void r600_buffer_destroy(struct pipe_screen *screen,
  39                                 struct pipe_resource *buf)
  40 {
  41         struct r600_resource *rbuffer = r600_resource(buf);
  42
  43         pb_reference(&rbuffer->buf, NULL);
  44         FREE(rbuffer);
  45 }
  46
  47 static void *r600_buffer_transfer_map(struct pipe_context *ctx,
  48                                       struct pipe_resource *resource,
  49                                       unsigned level,
  50                                       unsigned usage,
  51                                       const struct pipe_box *box,
  52                                       struct pipe_transfer **ptransfer)
  53 {
  54         struct r600_context *rctx = (struct r600_context*)ctx;
  55         struct pipe_transfer *transfer;
  56         struct r600_resource *rbuffer = r600_resource(resource);
  57         uint8_t *data;
  58
  59         data = rctx->b.ws->buffer_map(rbuffer->cs_buf, rctx->b.rings.gfx.cs, usage);
  60         if (!data) {
  61                 return NULL;
  62         }
  63
  64         transfer = util_slab_alloc(&rctx->pool_transfers);
  65         transfer->resource = resource;
  66         transfer->level = level;
  67         transfer->usage = usage;
  68         transfer->box = *box;
  69         transfer->stride = 0;
  70         transfer->layer_stride = 0;
  71         *ptransfer = transfer;
  72
  73         return (uint8_t*)data + transfer->box.x;
  74 }
  75
  76 static void r600_buffer_transfer_unmap(struct pipe_context *ctx,
  77                                         struct pipe_transfer *transfer)
  78 {
  79         struct r600_context *rctx = (struct r600_context*)ctx;
  80         util_slab_free(&rctx->pool_transfers, transfer);
  81 }
  82
  83 static void r600_buffer_transfer_flush_region(struct pipe_context *pipe,
  84                                                 struct pipe_transfer *transfer,
  85                                                 const struct pipe_box *box)
  86 {
  87 }
  88
  89 static const struct u_resource_vtbl r600_buffer_vtbl =
  90 {
  91         u_default_resource_get_handle,          /* get_handle */
  92         r600_buffer_destroy,                    /* resource_destroy */
  93         r600_buffer_transfer_map,               /* transfer_map */
  94         r600_buffer_transfer_flush_region,      /* transfer_flush_region */
  95         r600_buffer_transfer_unmap,             /* transfer_unmap */
  96         NULL    /* transfer_inline_write */
  97 };
  98
  99 struct pipe_resource *si_buffer_create(struct pipe_screen *screen,
 100                                        const struct pipe_resource *templ)
 101 {
 102         struct r600_screen *rscreen = (struct r600_screen*)screen;
 103         struct r600_resource *rbuffer;
 104         /* XXX We probably want a different alignment for buffers and textures. */
 105         unsigned alignment = 4096;
 106
 107         rbuffer = MALLOC_STRUCT(r600_resource);
 108
 109         rbuffer->b.b = *templ;
 110         pipe_reference_init(&rbuffer->b.b.reference, 1);
 111         rbuffer->b.b.screen = screen;
 112         rbuffer->b.vtbl = &r600_buffer_vtbl;
 113         util_range_init(&rbuffer->valid_buffer_range);
 114
 115         if (!r600_init_resource(&rscreen->b, rbuffer, templ->width0, alignment, TRUE, templ->usage)) {
 116                 FREE(rbuffer);
 117                 return NULL;
 118         }
 119         return &rbuffer->b.b;
 120 }
 121
 122 void r600_upload_index_buffer(struct r600_context *rctx,
 123                               struct pipe_index_buffer *ib, unsigned count)
 124 {
 125         u_upload_data(rctx->uploader, 0, count * ib->index_size,
 126                       ib->user_buffer, &ib->offset, &ib->buffer);
 127 }
 128
 129 void r600_upload_const_buffer(struct r600_context *rctx, struct r600_resource **rbuffer,
 130                         const uint8_t *ptr, unsigned size,
 131                         uint32_t *const_offset)
 132 {
 133         if (R600_BIG_ENDIAN) {
 134                 uint32_t *tmpPtr;
 135                 unsigned i;
 136
 137                 if (!(tmpPtr = malloc(size))) {
 138                         R600_ERR("Failed to allocate BE swap buffer.\n");
 139                         return;
 140                 }
 141
 142                 for (i = 0; i < size / 4; ++i) {
 143                         tmpPtr[i] = util_bswap32(((uint32_t *)ptr)[i]);
 144                 }
 145
 146                 u_upload_data(rctx->uploader, 0, size, tmpPtr, const_offset,
 147                                 (struct pipe_resource**)rbuffer);
 148
 149                 free(tmpPtr);
 150         } else {
 151                 u_upload_data(rctx->uploader, 0, size, ptr, const_offset,
 152                                         (struct pipe_resource**)rbuffer);
 153         }
 154 }