| 1 | /* |
| 2 | * Copyright © 2002 David Dawes |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included in |
| 12 | * all copies or substantial portions of the Software. |
| 13 | * |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 17 | * THE AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| 18 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF |
| 19 | * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 20 | * SOFTWARE. |
| 21 | * |
| 22 | * Except as contained in this notice, the name of the author(s) shall |
| 23 | * not be used in advertising or otherwise to promote the sale, use or other |
| 24 | * dealings in this Software without prior written authorization from |
| 25 | * the author(s). |
| 26 | * |
| 27 | * Authors: David Dawes <dawes@xfree86.org> |
| 28 | * |
| 29 | */ |
| 30 | |
| 31 | #ifndef _VBE_MODES_H |
| 32 | |
| 33 | /* |
| 34 | * This is intended to be stored in the DisplayModeRec's private area. |
| 35 | * It includes all the information necessary to VBE information. |
| 36 | */ |
| 37 | typedef struct _VbeModeInfoData { |
| 38 | int mode; |
| 39 | VbeModeInfoBlock *data; |
| 40 | VbeCRTCInfoBlock *block; |
| 41 | } VbeModeInfoData; |
| 42 | |
| 43 | #define V_DEPTH_1 0x001 |
| 44 | #define V_DEPTH_4 0x002 |
| 45 | #define V_DEPTH_8 0x004 |
| 46 | #define V_DEPTH_15 0x008 |
| 47 | #define V_DEPTH_16 0x010 |
| 48 | #define V_DEPTH_24_24 0x020 |
| 49 | #define V_DEPTH_24_32 0x040 |
| 50 | #define V_DEPTH_24 (V_DEPTH_24_24 | V_DEPTH_24_32) |
| 51 | #define V_DEPTH_30 0x080 |
| 52 | #define V_DEPTH_32 0x100 |
| 53 | |
| 54 | #define VBE_MODE_SUPPORTED(m) (((m)->ModeAttributes & 0x01) != 0) |
| 55 | #define VBE_MODE_COLOR(m) (((m)->ModeAttributes & 0x08) != 0) |
| 56 | #define VBE_MODE_GRAPHICS(m) (((m)->ModeAttributes & 0x10) != 0) |
| 57 | #define VBE_MODE_VGA(m) (((m)->ModeAttributes & 0x40) == 0) |
| 58 | #define VBE_MODE_LINEAR(m) (((m)->ModeAttributes & 0x80) != 0 && \ |
| 59 | ((m)->PhysBasePtr != 0)) |
| 60 | |
| 61 | #define VBE_MODE_USABLE(m, f) (VBE_MODE_SUPPORTED(m) || \ |
| 62 | (f & V_MODETYPE_BAD)) && \ |
| 63 | VBE_MODE_GRAPHICS(m) && \ |
| 64 | (VBE_MODE_VGA(m) || VBE_MODE_LINEAR(m)) |
| 65 | |
| 66 | #define V_MODETYPE_VBE 0x01 |
| 67 | #define V_MODETYPE_VGA 0x02 |
| 68 | #define V_MODETYPE_BAD 0x04 |
| 69 | |
| 70 | extern _X_EXPORT int VBEFindSupportedDepths(vbeInfoPtr pVbe, VbeInfoBlock * vbe, |
| 71 | int *flags24, int modeTypes); |
| 72 | extern _X_EXPORT DisplayModePtr VBEGetModePool(ScrnInfoPtr pScrn, |
| 73 | vbeInfoPtr pVbe, |
| 74 | VbeInfoBlock * vbe, |
| 75 | int modeTypes); |
| 76 | extern _X_EXPORT void VBESetModeNames(DisplayModePtr pMode); |
| 77 | extern _X_EXPORT void VBESetModeParameters(ScrnInfoPtr pScrn, vbeInfoPtr pVbe); |
| 78 | |
| 79 | /* |
| 80 | * Note: These are alternatives to the standard helpers. They should |
| 81 | * usually just wrap the standard helpers. |
| 82 | */ |
| 83 | extern _X_EXPORT int VBEValidateModes(ScrnInfoPtr scrp, |
| 84 | DisplayModePtr availModes, |
| 85 | char **modeNames, |
| 86 | ClockRangePtr clockRanges, |
| 87 | int *linePitches, int minPitch, |
| 88 | int maxPitch, int pitchInc, int minHeight, |
| 89 | int maxHeight, int virtualX, int virtualY, |
| 90 | int apertureSize, |
| 91 | LookupModeFlags strategy); |
| 92 | extern _X_EXPORT void VBEPrintModes(ScrnInfoPtr scrp); |
| 93 | |
| 94 | #endif /* VBE_MODES_H */ |