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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 
33 void
nouveau_surface_alloc(struct gl_context * ctx,struct nouveau_surface * s,enum nouveau_surface_layout layout,unsigned flags,unsigned format,unsigned width,unsigned height)34 nouveau_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 
75 void
nouveau_surface_ref(struct nouveau_surface * src,struct nouveau_surface * dst)76 nouveau_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