Jakob Bornecrantz | 632f611 | 2009-12-10 00:19:10 +0000 | [diff] [blame] | 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 | |
| 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' |
| 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 | |
| 71 | // May include zero or more items. |
| 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 |
| 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) |
| 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 | |
| 201 | #endif // _SVGA_OVERLAY_H_ |