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632f6117 JB |
1 | /********************************************************** |
2 | * Copyright 2007-2009 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 | /* | |
27 | * svga_overlay.h -- | |
28 | * | |
29 | * Definitions for video-overlay support. | |
30 | */ | |
31 | ||
32 | #ifndef _SVGA_OVERLAY_H_ | |
33 | #define _SVGA_OVERLAY_H_ | |
34 | ||
35 | #include "svga_reg.h" | |
36 | ||
37 | /* | |
38 | * Video formats we support | |
39 | */ | |
40 | ||
8d3713ea JB |
41 | #define VMWARE_FOURCC_YV12 0x32315659 /* 'Y' 'V' '1' '2' */ |
42 | #define VMWARE_FOURCC_YUY2 0x32595559 /* 'Y' 'U' 'Y' '2' */ | |
43 | #define VMWARE_FOURCC_UYVY 0x59565955 /* 'U' 'Y' 'V' 'Y' */ | |
632f6117 JB |
44 | |
45 | typedef enum { | |
46 | SVGA_OVERLAY_FORMAT_INVALID = 0, | |
47 | SVGA_OVERLAY_FORMAT_YV12 = VMWARE_FOURCC_YV12, | |
48 | SVGA_OVERLAY_FORMAT_YUY2 = VMWARE_FOURCC_YUY2, | |
49 | SVGA_OVERLAY_FORMAT_UYVY = VMWARE_FOURCC_UYVY, | |
50 | } SVGAOverlayFormat; | |
51 | ||
52 | #define SVGA_VIDEO_COLORKEY_MASK 0x00ffffff | |
53 | ||
54 | #define SVGA_ESCAPE_VMWARE_VIDEO 0x00020000 | |
55 | ||
56 | #define SVGA_ESCAPE_VMWARE_VIDEO_SET_REGS 0x00020001 | |
57 | /* FIFO escape layout: | |
58 | * Type, Stream Id, (Register Id, Value) pairs */ | |
59 | ||
60 | #define SVGA_ESCAPE_VMWARE_VIDEO_FLUSH 0x00020002 | |
61 | /* FIFO escape layout: | |
62 | * Type, Stream Id */ | |
63 | ||
64 | typedef | |
65 | struct SVGAEscapeVideoSetRegs { | |
66 | struct { | |
67 | uint32 cmdType; | |
68 | uint32 streamId; | |
69 | } header; | |
70 | ||
8d3713ea | 71 | /* May include zero or more items. */ |
632f6117 JB |
72 | struct { |
73 | uint32 registerId; | |
74 | uint32 value; | |
75 | } items[1]; | |
76 | } SVGAEscapeVideoSetRegs; | |
77 | ||
78 | typedef | |
79 | struct SVGAEscapeVideoFlush { | |
80 | uint32 cmdType; | |
81 | uint32 streamId; | |
82 | } SVGAEscapeVideoFlush; | |
83 | ||
84 | ||
85 | /* | |
86 | * Struct definitions for the video overlay commands built on | |
87 | * SVGAFifoCmdEscape. | |
88 | */ | |
89 | typedef | |
90 | struct { | |
91 | uint32 command; | |
92 | uint32 overlay; | |
93 | } SVGAFifoEscapeCmdVideoBase; | |
94 | ||
95 | typedef | |
96 | struct { | |
97 | SVGAFifoEscapeCmdVideoBase videoCmd; | |
98 | } SVGAFifoEscapeCmdVideoFlush; | |
99 | ||
100 | typedef | |
101 | struct { | |
102 | SVGAFifoEscapeCmdVideoBase videoCmd; | |
103 | struct { | |
104 | uint32 regId; | |
105 | uint32 value; | |
106 | } items[1]; | |
107 | } SVGAFifoEscapeCmdVideoSetRegs; | |
108 | ||
109 | typedef | |
110 | struct { | |
111 | SVGAFifoEscapeCmdVideoBase videoCmd; | |
112 | struct { | |
113 | uint32 regId; | |
114 | uint32 value; | |
115 | } items[SVGA_VIDEO_NUM_REGS]; | |
116 | } SVGAFifoEscapeCmdVideoSetAllRegs; | |
117 | ||
118 | ||
119 | /* | |
120 | *---------------------------------------------------------------------- | |
121 | * | |
122 | * VMwareVideoGetAttributes -- | |
123 | * | |
124 | * Computes the size, pitches and offsets for YUV frames. | |
125 | * | |
126 | * Results: | |
127 | * TRUE on success; otherwise FALSE on failure. | |
128 | * | |
129 | * Side effects: | |
130 | * Pitches and offsets for the given YUV frame are put in 'pitches' | |
131 | * and 'offsets' respectively. They are both optional though. | |
132 | * | |
133 | *---------------------------------------------------------------------- | |
134 | */ | |
135 | ||
136 | static inline bool | |
8d3713ea JB |
137 | VMwareVideoGetAttributes(const SVGAOverlayFormat format, /* IN */ |
138 | uint32 *width, /* IN / OUT */ | |
139 | uint32 *height, /* IN / OUT */ | |
140 | uint32 *size, /* OUT */ | |
141 | uint32 *pitches, /* OUT (optional) */ | |
142 | uint32 *offsets) /* OUT (optional) */ | |
632f6117 JB |
143 | { |
144 | int tmp; | |
145 | ||
146 | *width = (*width + 1) & ~1; | |
147 | ||
148 | if (offsets) { | |
149 | offsets[0] = 0; | |
150 | } | |
151 | ||
152 | switch (format) { | |
153 | case VMWARE_FOURCC_YV12: | |
154 | *height = (*height + 1) & ~1; | |
155 | *size = (*width + 3) & ~3; | |
156 | ||
157 | if (pitches) { | |
158 | pitches[0] = *size; | |
159 | } | |
160 | ||
161 | *size *= *height; | |
162 | ||
163 | if (offsets) { | |
164 | offsets[1] = *size; | |
165 | } | |
166 | ||
167 | tmp = ((*width >> 1) + 3) & ~3; | |
168 | ||
169 | if (pitches) { | |
170 | pitches[1] = pitches[2] = tmp; | |
171 | } | |
172 | ||
173 | tmp *= (*height >> 1); | |
174 | *size += tmp; | |
175 | ||
176 | if (offsets) { | |
177 | offsets[2] = *size; | |
178 | } | |
179 | ||
180 | *size += tmp; | |
181 | break; | |
182 | ||
183 | case VMWARE_FOURCC_YUY2: | |
184 | case VMWARE_FOURCC_UYVY: | |
185 | *size = *width * 2; | |
186 | ||
187 | if (pitches) { | |
188 | pitches[0] = *size; | |
189 | } | |
190 | ||
191 | *size *= *height; | |
192 | break; | |
193 | ||
194 | default: | |
195 | return false; | |
196 | } | |
197 | ||
198 | return true; | |
199 | } | |
200 | ||
8d3713ea | 201 | #endif /* _SVGA_OVERLAY_H_ */ |