mirror of
https://github.com/reactos/reactos.git
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288 lines
9.5 KiB
C
288 lines
9.5 KiB
C
#pragma once
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#define _WINBASE_
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#define _WINDOWS_H
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#include <stdarg.h>
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#include <windef.h>
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#include <guiddef.h>
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#include <wingdi.h>
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#include <winddi.h>
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#include <winioctl.h>
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#include <ntddvdeo.h>
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#include <ioaccess.h>
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#include "vgavideo/vgavideo.h"
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#include "objects/brush.h"
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#include "objects/bitblt.h"
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#ifndef NDEBUG
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#define DPRINT DbgPrint
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#else
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#define DPRINT
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#endif
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#define DPRINT1 DbgPrint
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/* FIXME - what a headers mess.... */
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#define DDKFASTAPI __fastcall
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#define FASTCALL __fastcall
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ULONG DbgPrint(PCCH Format,...);
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static __inline BOOLEAN
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RemoveEntryList(
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IN PLIST_ENTRY Entry)
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{
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PLIST_ENTRY OldFlink;
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PLIST_ENTRY OldBlink;
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OldFlink = Entry->Flink;
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OldBlink = Entry->Blink;
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OldFlink->Blink = OldBlink;
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OldBlink->Flink = OldFlink;
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return (OldFlink == OldBlink);
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}
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static __inline VOID
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InsertHeadList(
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IN PLIST_ENTRY ListHead,
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IN PLIST_ENTRY Entry)
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{
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PLIST_ENTRY OldFlink;
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OldFlink = ListHead->Flink;
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Entry->Flink = OldFlink;
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Entry->Blink = ListHead;
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OldFlink->Blink = Entry;
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ListHead->Flink = Entry;
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}
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static __inline VOID
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InitializeListHead(
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IN PLIST_ENTRY ListHead)
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{
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ListHead->Flink = ListHead->Blink = ListHead;
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}
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/***********************************************************/
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#define DS_SOLIDBRUSH 0x00000001
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#define DS_GREYBRUSH 0x00000002
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#define DS_BRUSH 0x00000004
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#define DS_DIB 0x00000008
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#define POW2(stride) (!((stride) & ((stride)-1))) // TRUE if stride is power of 2
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#define BROKEN_RASTERS(stride,cy) ((!(POW2(stride))) && ((stride*cy) > 0x10000))
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#define ENUM_RECT_LIMIT 50
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typedef struct _RECT_ENUM
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{
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ULONG c;
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RECTL arcl[ENUM_RECT_LIMIT];
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} RECT_ENUM;
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// Cursor coordinates
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typedef struct _XYPAIR
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{
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USHORT x;
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USHORT y;
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} XYPAIR;
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typedef struct _SAVED_SCREEN_BITS
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{
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BOOL Free;
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DWORD Offset;
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ULONG Size;
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LIST_ENTRY ListEntry;
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} SAVED_SCREEN_BITS, *PSAVED_SCREEN_BITS;
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// Cursor states
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#define CURSOR_COLOR 0x00000004
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#define CURSOR_HW 0x00000010
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#define CURSOR_HW_ACTIVE 0x00000020
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#define CURSOR_ANIMATE 0x00000040
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typedef struct _PDEV
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{
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ULONG fl; // driver flags
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// Handles
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HANDLE KMDriver;
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HDEV GDIDevHandle; // engine's handle to PDEV
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HSURF SurfHandle; // engine's handle to surface
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PVOID AssociatedSurf; // associated surface
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// Cursor
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XYPAIR xyHotSpot; // cursor hotspot
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// Pointer
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PVIDEO_POINTER_ATTRIBUTES pPointerAttributes; // HW Pointer Attributes
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PSAVED_SCREEN_BITS ImageBehindCursor;
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ULONG XorMaskStartOffset; // Start offset of hardware pointer
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// XOR mask relative to AND mask for
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// passing to HW pointer
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DWORD PointerAttributes; // Size of buffer allocated
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DWORD flPreallocSSBBufferInUse; // True if preallocated saved screen
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// bits buffer is in use
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PUCHAR pjPreallocSSBBuffer; // Pointer to preallocated saved screen
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// bits buffer, if there is one
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ULONG ulPreallocSSBSize; // Size of preallocated saved screen
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// bits buffer
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VIDEO_POINTER_CAPABILITIES PointerCapabilities; // HW pointer abilities
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PUCHAR pucDIB4ToVGAConvBuffer; // DIB4->VGA conversion table buffer
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PUCHAR pucDIB4ToVGAConvTables; // Pointer to DIB4->VGA conversion
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// Misc
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ULONG ModeNum; // mode index for current VGA mode
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SIZEL sizeSurf; // displayed size of the surface
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PBYTE fbScreen; // pointer to the frame buffer
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RECTL SavedBitsRight; // invisible part right of screen
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RECTL SavedBitsBottom; // invisible part at the bottom of the screen
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BOOL BitsSaved; // TRUE if bits are currently saved
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SIZEL sizeMem; // actual size (in pixels) of video memory
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LONG NumScansUsedByPointer; // # scans of offscreen memory used by
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} PDEV, *PPDEV;
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typedef struct {
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RECTL BankBounds; // Pixels addressable in this bank
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ULONG BankOffset; // Offset of bank start from bitmap start if linearly addressable
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} BANK_INFO, *PBANK_INFO;
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typedef enum {
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JustifyTop = 0,
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JustifyBottom,
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} BANK_JUST;
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// bank control function vector
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//typedef VOID (*PFN_BankControl)(PDEVSURF, ULONG, BANK_JUST);
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typedef VOID (*PFN_BankControl)(PVOID, ULONG, BANK_JUST);
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// DEVSURF -- definition of a surface as seen and used by the various VGA
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// drivers
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typedef struct _DEVSURF
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{
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IDENT ident; // Identifier for debugging ease
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ULONG flSurf; // DS_ flags as defined below
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BYTE Color; // Solid color surface if DS_SOLIDBRUSH
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// If DS_SOLIDBRUSH, the following fields are undefined and not guaranteed to
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// have been allocated!
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BYTE Format; // BMF_*, BMF_PHYSDEVICE
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BYTE jReserved1; // Reserved
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BYTE jReserved2; // Reserved
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PPDEV ppdev; // Pointer to associated PDEV
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SIZEL sizeSurf; // Size of the surface
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ULONG NextScan; // Offset from scan "n" to "n+1"
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ULONG NextPlane; // Offset from plane "n" to "n+1"
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PVOID Scan0; // Pointer to scan 0 of bitmap
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// (actual address of start of bank, for banked VGA surface)
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PVOID StartBmp; // Pointer to start of bitmap
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PVOID Conv; // Pointer to DIB/Planer conversion buffer
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// Banking variables; used only for banked VGA surfaces
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PVIDEO_BANK_SELECT BankSelectInfo;
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ULONG Bank2RWSkip; // Offset from one bank index to next to make two 32K banks appear to be
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// one seamless 64K bank
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PFN pfnBankSwitchCode;
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VIDEO_BANK_TYPE BankingType;
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ULONG BitmapSize; // Length of bitmap if there were no banking, in CPU addressable bytes
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ULONG PtrBankScan; // Last scan line in pointer work bank
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RECTL WindowClip1; // Single-window banking clip rect
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RECTL WindowClip2[2]; // Double-window banking clip rects for
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// windows 0 & 1
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ULONG WindowBank[2]; // Current banks mapped into windows
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// 0 & 1 (used in 2 window mode only)
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PBANK_INFO BankInfo; // Pointer to array of bank clip info
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ULONG BankInfoLength; // Length of pbiBankInfo, in entries
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PBANK_INFO BankInfo2RW; // Same as above, but for 2RW window
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ULONG BankInfo2RWLength; // case
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PFN_BankControl pfnBankControl; // Pointer to bank control function
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PFN_BankControl pfnBankControl2Window; // Pointer to double-window bank
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// control function
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PVOID BitmapStart; // Single-window bitmap start pointer (adjusted as
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// necessary to make window map in at proper offset)
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PVOID BitmapStart2Window[2]; // Double-window window 0 and 1 bitmap start
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PVOID BankBufferPlane0; // Pointer to temp buffer capable of
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// storing one full bank for plane 0 for 1
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// R/W case; capable of storing one full
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// bank height of edge bytes for all four
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// planes for the 1R/1W case. Also used to
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// point to text building buffer in all
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// cases. This is the pointer used to
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// dealloc bank working storage for all
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// four planes
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// The following 3 pointers used by 1 R/W banked devices
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PVOID BankBufferPlane1; // Like above, but for plane 1
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PVOID BankBufferPlane2; // Like above, but for plane 2
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PVOID BankBufferPlane3; // Like above, but for plane 3
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ULONG TempBufferSize; // Full size of temp buffer pointed to
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// by pvBankBufferPlane0
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ULONG ajBits[1]; // Bits will start here for device bitmaps
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PSAVED_SCREEN_BITS ssbList; // Pointer to start of linked list of
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// saved screen bit blocks
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} DEVSURF, *PDEVSURF;
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typedef VOID (*PFN_ScreenToScreenBlt)(PDEVSURF, PRECTL, PPOINTL, INT);
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// BMF_PHYSDEVICE format type
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#define BMF_PHYSDEVICE 0xFF
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#define BMF_DFB 0xFE
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// Identifiers used in debugging (DEVSURF.ident)
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#define PDEV_IDENT ('V' + ('P' << 8) + ('D' << 16) + ('V' << 24))
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#define DEVSURF_IDENT ('V' + ('S' << 8) + ('R' << 16) + ('F' << 24))
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BOOL InitVGA(PPDEV ppdev, BOOL bFirst); // screen.c: initialize VGA mode
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BOOL DeinitVGA(PPDEV ppdev); // screen.c: Free resources allocated in InitVGA
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#define DRIVER_EXTRA_SIZE 0
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#define ALLOC_TAG 'agvD' // Dvga tag
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#define DLL_NAME L"vga" // DLL name in Unicode
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#define MAX_SCAN_WIDTH 2048 // pixels
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#define DRIVER_OFFSCREEN_REFRESHED 0x04L // if not set, don't use offscreen memory
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#define PLANAR_PELS_PER_CPU_ADDRESS 8
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#define PACKED_PELS_PER_CPU_ADDRESS 2
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BOOL VGAtoGDI(
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SURFOBJ *Dest, SURFOBJ *Source, SURFOBJ *Mask, XLATEOBJ *ColorTranslation,
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RECTL *DestRect, POINTL *SourcePoint);
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VOID
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VGADDI_BltFromSavedScreenBits(ULONG DestX,
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ULONG DestY,
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PSAVED_SCREEN_BITS Src,
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ULONG SizeX,
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ULONG SizeY);
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VOID
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VGADDI_BltToSavedScreenBits(PSAVED_SCREEN_BITS Dest,
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ULONG SourceX,
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ULONG SourceY,
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ULONG SizeX,
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ULONG SizeY);
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VOID
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VGADDI_FreeSavedScreenBits(PSAVED_SCREEN_BITS SavedBits);
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PSAVED_SCREEN_BITS
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VGADDI_AllocSavedScreenBits(ULONG Size);
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VOID
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VGADDI_InitializeOffScreenMem(ULONG Start, ULONG Length);
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BOOL InitPointer(PPDEV ppdev);
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DWORD getAvailableModes(HANDLE Driver,
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PVIDEO_MODE_INFORMATION *modeInformation,
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DWORD *ModeSize);
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VOID FASTCALL
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vgaReadScan(int x, int y, int w, void *b);
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VOID FASTCALL
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vgaWriteScan(int x, int y, int w, void *b);
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