1 /**************************************************************************
2 *
3 * Copyright 2008 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 #ifndef I915_RESOURCE_H
29 #define I915_RESOURCE_H
30
31 struct i915_screen;
32
33 #include "util/u_debug.h"
34 #include "util/u_transfer.h"
35 #include "i915_winsys.h"
36
37 struct i915_context;
38 struct i915_screen;
39
40 struct i915_buffer {
41 struct pipe_resource b;
42 uint8_t *data;
43 bool free_on_destroy;
44 };
45
46 /* Texture transfer. */
47 struct i915_transfer {
48 /* Base class. */
49 struct pipe_transfer b;
50 struct pipe_resource *staging_texture;
51 };
52
53 #define I915_MAX_TEXTURE_2D_LEVELS 12 /* max 2048x2048 */
54 #define I915_MAX_TEXTURE_3D_LEVELS 9 /* max 256x256x256 */
55
56 struct offset_pair {
57 unsigned short nblocksx;
58 unsigned short nblocksy;
59 };
60
61 struct i915_texture {
62 struct pipe_resource b;
63
64 /* tiling flags */
65 enum i915_winsys_buffer_tile tiling;
66 unsigned stride;
67 unsigned depth_stride; /* per-image on i945? */
68 unsigned total_nblocksy;
69
70 unsigned nr_images[I915_MAX_TEXTURE_2D_LEVELS];
71
72 /* Explicitly store the offset of each image for each cube face or
73 * depth value.
74 *
75 * Array [depth] off offsets.
76 */
77 struct offset_pair *image_offset[I915_MAX_TEXTURE_2D_LEVELS];
78
79 /* The data is held here:
80 */
81 struct i915_winsys_buffer *buffer;
82 };
83
84 unsigned i915_texture_offset(const struct i915_texture *tex, unsigned level,
85 unsigned layer);
86 void i915_init_screen_resource_functions(struct i915_screen *is);
87 void i915_init_resource_functions(struct i915_context *i915);
88
89 static inline struct i915_texture *
i915_texture(struct pipe_resource * resource)90 i915_texture(struct pipe_resource *resource)
91 {
92 struct i915_texture *tex = (struct i915_texture *)resource;
93 assert(tex->b.target != PIPE_BUFFER);
94 return tex;
95 }
96
97 static inline struct i915_buffer *
i915_buffer(struct pipe_resource * resource)98 i915_buffer(struct pipe_resource *resource)
99 {
100 struct i915_buffer *tex = (struct i915_buffer *)resource;
101 assert(tex->b.target == PIPE_BUFFER);
102 return tex;
103 }
104
105 struct pipe_resource *i915_texture_create(struct pipe_screen *screen,
106 const struct pipe_resource *template,
107 bool force_untiled);
108
109 bool i915_resource_get_handle(struct pipe_screen *screen,
110 struct pipe_context *context,
111 struct pipe_resource *texture,
112 struct winsys_handle *whandle, unsigned usage);
113
114 struct pipe_resource *
115 i915_texture_from_handle(struct pipe_screen *screen,
116 const struct pipe_resource *template,
117 struct winsys_handle *whandle);
118
119 struct pipe_resource *i915_user_buffer_create(struct pipe_screen *screen,
120 void *ptr, unsigned bytes,
121 unsigned usage);
122
123 struct pipe_resource *i915_buffer_create(struct pipe_screen *screen,
124 const struct pipe_resource *template);
125
126 void i915_resource_destroy(struct pipe_screen *screen,
127 struct pipe_resource *resource);
128
129 void i915_buffer_subdata(struct pipe_context *rm_ctx,
130 struct pipe_resource *resource, unsigned usage,
131 unsigned offset, unsigned size, const void *data);
132
133 void *i915_buffer_transfer_map(struct pipe_context *pipe,
134 struct pipe_resource *resource, unsigned level,
135 unsigned usage, const struct pipe_box *box,
136 struct pipe_transfer **ptransfer);
137
138 void i915_buffer_transfer_unmap(struct pipe_context *pipe,
139 struct pipe_transfer *transfer);
140
141 void *i915_texture_transfer_map(struct pipe_context *pipe,
142 struct pipe_resource *resource, unsigned level,
143 unsigned usage, const struct pipe_box *box,
144 struct pipe_transfer **ptransfer);
145
146 void i915_texture_transfer_unmap(struct pipe_context *pipe,
147 struct pipe_transfer *transfer);
148
149 void i915_texture_subdata(struct pipe_context *pipe,
150 struct pipe_resource *resource, unsigned level,
151 unsigned usage, const struct pipe_box *box,
152 const void *data, unsigned stride,
153 unsigned layer_stride);
154
155 #endif /* I915_RESOURCE_H */
156