1/*
2 * Copyright (C) 2009 Francisco Jerez.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
27#include "nouveau_driver.h"
28#include "nouveau_context.h"
29#include "nouveau_util.h"
30
31#include "main/formats.h"
32
33void
34nouveau_surface_alloc(struct gl_context *ctx, struct nouveau_surface *s,
35		      enum nouveau_surface_layout layout,
36		      unsigned flags, unsigned format,
37		      unsigned width, unsigned height)
38{
39	union nouveau_bo_config config = {};
40	int ret, cpp = _mesa_get_format_bytes(format);
41
42	nouveau_bo_ref(NULL, &s->bo);
43
44	*s = (struct nouveau_surface) {
45		.layout = layout,
46		.format = format,
47		.width = width,
48		.height = height,
49		.cpp = cpp,
50		.pitch = _mesa_format_row_stride(format, width),
51	};
52
53	if (layout == TILED) {
54		s->pitch = align(s->pitch, 256);
55		config.nv04.surf_pitch = s->pitch;
56
57		if (cpp == 4)
58			config.nv04.surf_flags = NV04_BO_32BPP;
59		else if (cpp == 2)
60			config.nv04.surf_flags = NV04_BO_16BPP;
61
62		if (_mesa_get_format_bits(format, GL_DEPTH_BITS))
63			config.nv04.surf_flags |= NV04_BO_ZETA;
64
65	} else {
66		s->pitch = align(s->pitch, 64);
67	}
68
69	ret = nouveau_bo_new(context_dev(ctx), flags, 0,
70			     get_format_blocksy(format, height) * s->pitch,
71			     &config, &s->bo);
72	assert(!ret);
73}
74
75void
76nouveau_surface_ref(struct nouveau_surface *src,
77		    struct nouveau_surface *dst)
78{
79	if (src) {
80		dst->offset = src->offset;
81		dst->layout = src->layout;
82		dst->format = src->format;
83		dst->width = src->width;
84		dst->height = src->height;
85		dst->cpp = src->cpp;
86		dst->pitch = src->pitch;
87		nouveau_bo_ref(src->bo, &dst->bo);
88
89	} else {
90		nouveau_bo_ref(NULL, &dst->bo);
91	}
92}
93