1/**********************************************************
2 * Copyright 2011 VMware, Inc.  All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 **********************************************************/
25
26#ifndef SVGA_FORMAT_H_
27#define SVGA_FORMAT_H_
28
29
30#include "pipe/p_format.h"
31#include "svga_context.h"
32#include "svga_types.h"
33#include "svga_reg.h"
34#include "svga3d_reg.h"
35
36
37struct svga_screen;
38
39
40/**
41 * Vertex format flags.  These are used to specify that some vertex formats
42 * need extra processing/conversion in the vertex shader.  For example,
43 * setting the W component to 1, or swapping R/B, or converting packed uint
44 * types to signed int/snorm.
45 */
46#define VF_ADJUST_RANGE     (1 << 0)
47#define VF_W_TO_1           (1 << 1)
48#define VF_U_TO_F_CAST      (1 << 2)  /* convert uint to float */
49#define VF_I_TO_F_CAST      (1 << 3)  /* convert sint to float */
50#define VF_BGRA             (1 << 4)  /* swap R/B */
51#define VF_PUINT_TO_SNORM   (1 << 5)  /* 10_10_10_2 to snorm */
52#define VF_PUINT_TO_USCALED (1 << 6)  /* 10_10_10_2 to uscaled */
53#define VF_PUINT_TO_SSCALED (1 << 7)  /* 10_10_10_2 to sscaled */
54
55/**
56 * Texture format flags.
57 */
58#define TF_GEN_MIPS         (1 << 8)  /* supports hw generate mipmap */
59
60void
61svga_translate_vertex_format_vgpu10(enum pipe_format format,
62                                    SVGA3dSurfaceFormat *svga_format,
63                                    unsigned *vf_flags);
64
65enum SVGA3dSurfaceFormat
66svga_translate_format(const struct svga_screen *ss,
67                      enum pipe_format format,
68                      unsigned bind);
69
70void
71svga_get_format_cap(struct svga_screen *ss,
72                    SVGA3dSurfaceFormat format,
73                    SVGA3dSurfaceFormatCaps *caps);
74
75void
76svga_format_size(SVGA3dSurfaceFormat format,
77                 unsigned *block_width,
78                 unsigned *block_height,
79                 unsigned *bytes_per_block);
80
81const char *
82svga_format_name(SVGA3dSurfaceFormat format);
83
84boolean
85svga_format_is_integer(SVGA3dSurfaceFormat format);
86
87boolean
88svga_format_support_gen_mips(enum pipe_format format);
89
90enum tgsi_return_type
91svga_get_texture_datatype(enum pipe_format format);
92
93
94// XXX: Move this to svga_context?
95boolean
96svga_has_any_integer_cbufs(const struct svga_context *svga);
97
98
99SVGA3dSurfaceFormat
100svga_typeless_format(SVGA3dSurfaceFormat format);
101
102
103SVGA3dSurfaceFormat
104svga_sampler_format(SVGA3dSurfaceFormat format);
105
106
107bool
108svga_format_is_uncompressed_snorm(SVGA3dSurfaceFormat format);
109
110
111bool
112svga_format_is_typeless(SVGA3dSurfaceFormat format);
113
114#endif /* SVGA_FORMAT_H_ */
115