Annotation of XNU/iokit/IOKit/graphics/IOFramebufferShared.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /* Copyright (c) 1992, 1993 NeXT Computer, Inc.  All rights reserved. 
        !            23:  *
        !            24:  * IOFrameBufferShared.h - Definitions of objects and types shared between
        !            25:  *   kernel level IOFrameBufferDisplay driver and PostScript level driver.
        !            26:  *
        !            27:  * HISTORY
        !            28:  * 03 Sep 92   Joe Pasqua
        !            29:  *      Created. 
        !            30:  * 24 Jun 93   Derek B Clegg
        !            31:  *     Moved to driverkit.
        !            32:  */
        !            33: 
        !            34: #ifndef _IOKIT_IOFRAMEBUFFERSHARED_H
        !            35: #define _IOKIT_IOFRAMEBUFFERSHARED_H
        !            36: 
        !            37: #include <IOKit/hidsystem/IOHIDTypes.h>
        !            38: #include <IOKit/graphics/IOGraphicsTypes.h>
        !            39: 
        !            40: #ifdef __cplusplus
        !            41: extern "C" {
        !            42: #endif
        !            43: 
        !            44: #ifdef KERNEL
        !            45: // CGS use optional
        !            46: #define IOFB_ARBITRARY_SIZE_CURSOR
        !            47: #endif
        !            48: 
        !            49: #define IOFB_SUPPORTS_XOR_CURSOR
        !            50: 
        !            51: //
        !            52: // Cursor and Window Server state data, occupying a slice of shared memory
        !            53: // between the kernel and WindowServer.
        !            54: //
        !            55: 
        !            56: enum {
        !            57:     kIOFBNumCursorFrames       = 4,
        !            58:     kIOFBNumCursorFramesShift  = 2,
        !            59:     kIOFBMaxCursorDepth                = 32
        !            60: };
        !            61: 
        !            62: #ifndef IOFB_ARBITRARY_SIZE_CURSOR
        !            63: 
        !            64: #define CURSORWIDTH  16         /* width in pixels */
        !            65: #define CURSORHEIGHT 16         /* height in pixels */
        !            66: 
        !            67: struct bm12Cursor {
        !            68:     unsigned int image[4][16];
        !            69:     unsigned int mask[4][16];
        !            70:     unsigned int save[16];
        !            71: };
        !            72: 
        !            73: struct bm18Cursor {
        !            74:     unsigned char image[4][256];
        !            75:     unsigned char mask[4][256];
        !            76:     unsigned char save[256];
        !            77: };
        !            78: 
        !            79: struct bm34Cursor {
        !            80:     unsigned short image[4][256];
        !            81:     unsigned short save[256];
        !            82: };
        !            83: 
        !            84: struct bm38Cursor {
        !            85:     unsigned int image[4][256];
        !            86:     unsigned int save[256];
        !            87: };
        !            88: 
        !            89: #endif /* IOFB_ARBITRARY_SIZE_CURSOR */
        !            90: 
        !            91: struct StdFBShmem_t {
        !            92:     ev_lock_data_t cursorSema; 
        !            93:     int frame;
        !            94:     char cursorShow;
        !            95:     char cursorObscured;
        !            96:     char shieldFlag;
        !            97:     char shielded;
        !            98:     IOGBounds saveRect;
        !            99:     IOGBounds shieldRect;
        !           100:     IOGPoint cursorLoc;
        !           101:     IOGBounds cursorRect;
        !           102:     IOGBounds oldCursorRect;
        !           103:     IOGBounds screenBounds;
        !           104:     int version;
        !           105:     int structSize;
        !           106:     AbsoluteTime vblTime;
        !           107: #if EVENT_SYSTEM_VERSION > 1
        !           108:     unsigned int reservedC[32];
        !           109: #endif
        !           110:     unsigned char hardwareCursorCapable;
        !           111:     unsigned char hardwareCursorActive;
        !           112:     unsigned char reservedB[2];
        !           113:     IOGSize cursorSize[kIOFBNumCursorFrames];
        !           114:     IOGPoint hotSpot[kIOFBNumCursorFrames];
        !           115: #ifndef IOFB_ARBITRARY_SIZE_CURSOR
        !           116:     union {
        !           117:        struct bm12Cursor bw;
        !           118:        struct bm18Cursor bw8;
        !           119:        struct bm34Cursor rgb;
        !           120:        struct bm38Cursor rgb24;
        !           121:     } cursor;
        !           122: #else  /* IOFB_ARBITRARY_SIZE_CURSOR */
        !           123:     unsigned char cursor[0];
        !           124: #endif /* IOFB_ARBITRARY_SIZE_CURSOR */
        !           125: };
        !           126: #ifndef __cplusplus
        !           127: typedef volatile struct StdFBShmem_t StdFBShmem_t;
        !           128: #endif
        !           129: 
        !           130: 
        !           131: enum {
        !           132:     // version for IOFBCreateSharedCursor
        !           133:     kIOFBCurrentShmemVersion   = 2,
        !           134:     // memory types for IOConnectMapMemory.
        !           135:     // 0..n are apertures
        !           136:     kIOFBCursorMemory          = 100,
        !           137:     kIOFBVRAMMemory            = 110
        !           138: };
        !           139: 
        !           140: #define IOFRAMEBUFFER_CONFORMSTO       "IOFramebuffer"
        !           141: 
        !           142: #ifdef __cplusplus
        !           143: }
        !           144: #endif
        !           145: 
        !           146: #ifndef KERNEL
        !           147: #ifndef _IOKIT_IOGRAPHICSLIB_H
        !           148: #include <IOKit/graphics/IOGraphicsLib.h>
        !           149: #endif
        !           150: #endif
        !           151: 
        !           152: #endif /* ! _IOKIT_IOFRAMEBUFFERSHARED_H */

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