1/**************************************************************************
2 *
3 * Copyright 2006 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27/*
28 * Authors:
29 *   Keith Whitwell <keithw@vmware.com>
30 *   Michel Dänzer <daenzer@vmware.com>
31 */
32
33#include "pipe/p_context.h"
34#include "pipe/p_defines.h"
35#include "util/u_inlines.h"
36#include "util/u_math.h"
37#include "util/u_memory.h"
38
39#include "i915_context.h"
40#include "i915_resource.h"
41#include "i915_screen.h"
42
43void
44i915_resource_destroy(struct pipe_screen *screen,
45                      struct pipe_resource *resource)
46{
47   if (resource->target == PIPE_BUFFER) {
48      struct i915_buffer *buffer = i915_buffer(resource);
49      if (buffer->free_on_destroy)
50         align_free(buffer->data);
51      FREE(buffer);
52   } else {
53      struct i915_texture *tex = i915_texture(resource);
54      struct i915_winsys *iws = i915_screen(screen)->iws;
55      uint32_t i;
56
57      if (tex->buffer)
58         iws->buffer_destroy(iws, tex->buffer);
59
60      for (i = 0; i < ARRAY_SIZE(tex->image_offset); i++)
61         FREE(tex->image_offset[i]);
62
63      FREE(tex);
64   }
65}
66
67void *
68i915_buffer_transfer_map(struct pipe_context *pipe,
69                         struct pipe_resource *resource, unsigned level,
70                         unsigned usage, const struct pipe_box *box,
71                         struct pipe_transfer **ptransfer)
72{
73   struct i915_context *i915 = i915_context(pipe);
74   struct i915_buffer *buffer = i915_buffer(resource);
75   struct pipe_transfer *transfer = slab_alloc_st(&i915->transfer_pool);
76
77   if (!transfer)
78      return NULL;
79
80   transfer->resource = resource;
81   transfer->level = level;
82   transfer->usage = usage;
83   transfer->box = *box;
84   *ptransfer = transfer;
85
86   return buffer->data + transfer->box.x;
87}
88
89void
90i915_buffer_transfer_unmap(struct pipe_context *pipe,
91                           struct pipe_transfer *transfer)
92{
93   struct i915_context *i915 = i915_context(pipe);
94   slab_free_st(&i915->transfer_pool, transfer);
95}
96
97void
98i915_buffer_subdata(struct pipe_context *rm_ctx, struct pipe_resource *resource,
99                    unsigned usage, unsigned offset, unsigned size,
100                    const void *data)
101{
102   struct i915_buffer *buffer = i915_buffer(resource);
103
104   memcpy(buffer->data + offset, data, size);
105}
106
107struct pipe_resource *
108i915_buffer_create(struct pipe_screen *screen,
109                   const struct pipe_resource *template)
110{
111   struct i915_buffer *buf = CALLOC_STRUCT(i915_buffer);
112
113   if (!buf)
114      return NULL;
115
116   buf->b = *template;
117   pipe_reference_init(&buf->b.reference, 1);
118   buf->b.screen = screen;
119   buf->data = align_malloc(template->width0, 64);
120   buf->free_on_destroy = true;
121
122   if (!buf->data)
123      goto err;
124
125   return &buf->b;
126
127err:
128   FREE(buf);
129   return NULL;
130}
131
132struct pipe_resource *
133i915_user_buffer_create(struct pipe_screen *screen, void *ptr, unsigned bytes,
134                        unsigned bind)
135{
136   struct i915_buffer *buf = CALLOC_STRUCT(i915_buffer);
137
138   if (!buf)
139      return NULL;
140
141   pipe_reference_init(&buf->b.reference, 1);
142   buf->b.screen = screen;
143   buf->b.format = PIPE_FORMAT_R8_UNORM; /* ?? */
144   buf->b.usage = PIPE_USAGE_IMMUTABLE;
145   buf->b.bind = bind;
146   buf->b.flags = 0;
147   buf->b.width0 = bytes;
148   buf->b.height0 = 1;
149   buf->b.depth0 = 1;
150   buf->b.array_size = 1;
151
152   buf->data = ptr;
153   buf->free_on_destroy = false;
154
155   return &buf->b;
156}
157