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