+#include <ddk/ntddk.h>
+#include <ddk/winddi.h>
+#include <ddk/ntddvid.h>
+
HANDLE GdiHeap;
+
+#define DS_SOLIDBRUSH 0x00000001
+#define DS_GREYBRUSH 0x00000002
+#define DS_BRUSH 0x00000004
+#define DS_DIB 0x00000008
+
+#define POW2(stride) (!((stride) & ((stride)-1))) // TRUE if stride is power of 2
+#define BROKEN_RASTERS(stride,cy) ((!(POW2(stride))) && ((stride*cy) > 0x10000))
+
+#define DM_SPECVERSION 1 // FIXME: What is this really?
+#define ENUM_RECT_LIMIT 50
+
+typedef struct _RECT_ENUM
+{
+ ULONG c;
+ RECTL arcl[ENUM_RECT_LIMIT];
+} RECT_ENUM;
+
+// Cursor coordinates
+typedef struct _XYPAIR
+{
+ USHORT x;
+ USHORT y;
+} XYPAIR;
+
+// Cursor states
+#define CURSOR_DOWN 0x00000001
+#define CURSOR_COLOR 0x00000004
+#define CURSOR_HW 0x00000010
+#define CURSOR_HW_ACTIVE 0x00000020
+#define CURSOR_ANIMATE 0x00000040
+
+typedef struct _PDEV
+{
+ ULONG fl; // driver flags
+
+ // Handles
+ HANDLE KMDriver;
+ HDEV GDIDevHandle; // engine's handle to PDEV
+ HSURF SurfHandle; // engine's handle to surface
+ PVOID AssociatedSurf; // associated surface
+
+ // Cursor
+ XYPAIR xyCursor; // cursor position
+ POINTL ptlExtent; // cursor extent
+ ULONG cExtent; // effective cursor extent
+ ULONG flCursor; // cursor status
+
+ // Pointer
+ PVIDEO_POINTER_ATTRIBUTES pPointerAttributes; // HW Pointer Attributes
+ ULONG XorMaskStartOffset; // Start offset of hardware pointer
+ // XOR mask relative to AND mask for
+ // passing to HW pointer
+ DWORD PointerAttributes; // Size of buffer allocated
+ DWORD flPreallocSSBBufferInUse; // True if preallocated saved screen
+ // bits buffer is in use
+ PUCHAR pjPreallocSSBBuffer; // Pointer to preallocated saved screen
+ // bits buffer, if there is one
+ ULONG ulPreallocSSBSize; // Size of preallocated saved screen
+ // bits buffer
+ VIDEO_POINTER_CAPABILITIES PointerCapabilities; // HW pointer abilities
+ PUCHAR pucDIB4ToVGAConvBuffer; // DIB4->VGA conversion table buffer
+ PUCHAR pucDIB4ToVGAConvTables; // Pointer to DIB4->VGA conversion
+
+ // Misc
+
+ ULONG ModeNum; // mode index for current VGA mode
+
+ SIZEL sizeSurf; // displayed size of the surface
+
+ PBYTE fbScreen; // pointer to the frame buffer
+
+ RECTL SavedBitsRight; // invisible part right of screen
+ RECTL SavedBitsBottom; // invisible part at the bottom of the screen
+ BOOL BitsSaved; // TRUE if bits are currently saved
+ SIZEL sizeMem; // actual size (in pixels) of video memory
+ LONG NumScansUsedByPointer; // # scans of offscreen memory used by
+
+} PDEV, *PPDEV;
+
+typedef struct {
+ RECTL BankBounds; // Pixels addressable in this bank
+ ULONG BankOffset; // Offset of bank start from bitmap start if linearly addressable
+} BANK_INFO, *PBANK_INFO;
+
+typedef enum {
+ JustifyTop = 0,
+ JustifyBottom,
+} BANK_JUST;
+
+// bank control function vector
+//typedef VOID (*PFN_BankControl)(PDEVSURF, ULONG, BANK_JUST);
+typedef VOID (*PFN_BankControl)(PVOID, ULONG, BANK_JUST);
+
+// descriptor for a saved screen bits block
+
+typedef struct _SAVED_SCREEN_BITS
+{
+ BOOL bFlags;
+ PBYTE pjBuffer; // pointer to save buffer start
+ ULONG ulSize; // size of save buffer (per plane; display memory only)
+ ULONG ulSaveWidthInBytes; // # of bytes across save area (including
+ // partial edge bytes, if any)
+ ULONG ulDelta; // # of bytes from end of one saved scan's saved bits to
+ // start of next (system memory only)
+ PVOID pvNextSSB; // pointer to next saved screen bits block
+ // for system memory blocks, saved bits start immediately
+ // after this structure
+} SAVED_SCREEN_BITS, *PSAVED_SCREEN_BITS;
+
+// DEVSURF -- definition of a surface as seen and used by the various VGA
+// drivers
+
+typedef struct _DEVSURF
+{
+ IDENT ident; // Identifier for debugging ease
+ ULONG flSurf; // DS_ flags as defined below
+ BYTE Color; // Solid color surface if DS_SOLIDBRUSH
+
+// If DS_SOLIDBRUSH, the following fields are undefined and not guaranteed to
+// have been allocated!
+
+ BYTE Format; // BMF_*, BMF_PHYSDEVICE
+ BYTE jReserved1; // Reserved
+ BYTE jReserved2; // Reserved
+ PPDEV ppdev; // Pointer to associated PDEV
+ SIZEL sizeSurf; // Size of the surface
+ ULONG NextScan; // Offset from scan "n" to "n+1"
+ ULONG NextPlane; // Offset from plane "n" to "n+1"
+ PVOID Scan0; // Pointer to scan 0 of bitmap
+ // (actual address of start of bank, for banked VGA surface)
+ PVOID StartBmp; // Pointer to start of bitmap
+ PVOID Conv; // Pointer to DIB/Planer conversion buffer
+
+// Banking variables; used only for banked VGA surfaces
+
+ PVIDEO_BANK_SELECT BankSelectInfo;
+ ULONG Bank2RWSkip; // Offset from one bank index to next to make two 32K banks appear to be
+ // one seamless 64K bank
+ PFN pfnBankSwitchCode;
+ VIDEO_BANK_TYPE BankingType;
+ ULONG BitmapSize; // Length of bitmap if there were no banking, in CPU addressable bytes
+ ULONG PtrBankScan; // Last scan line in pointer work bank
+ RECTL WindowClip1; // Single-window banking clip rect
+ RECTL WindowClip2[2]; // Double-window banking clip rects for
+ // windows 0 & 1
+ ULONG WindowBank[2]; // Current banks mapped into windows
+ // 0 & 1 (used in 2 window mode only)
+ PBANK_INFO BankInfo; // Pointer to array of bank clip info
+ ULONG BankInfoLength; // Length of pbiBankInfo, in entries
+ PBANK_INFO BankInfo2RW; // Same as above, but for 2RW window
+ ULONG BankInfo2RWLength; // case
+ PFN_BankControl pfnBankControl; // Pointer to bank control function
+ PFN_BankControl pfnBankControl2Window; // Pointer to double-window bank
+ // control function
+ PVOID BitmapStart; // Single-window bitmap start pointer (adjusted as
+ // necessary to make window map in at proper offset)
+ PVOID BitmapStart2Window[2]; // Double-window window 0 and 1 bitmap start
+ PVOID BankBufferPlane0; // Pointer to temp buffer capable of
+ // storing one full bank for plane 0 for 1
+ // R/W case; capable of storing one full
+ // bank height of edge bytes for all four
+ // planes for the 1R/1W case. Also used to
+ // point to text building buffer in all
+ // cases. This is the pointer used to
+ // dealloc bank working storage for all
+ // four planes
+
+ // The following 3 pointers used by 1 R/W banked devices
+
+ PVOID BankBufferPlane1; // Like above, but for plane 1
+ PVOID BankBufferPlane2; // Like above, but for plane 2
+ PVOID BankBufferPlane3; // Like above, but for plane 3
+ ULONG TempBufferSize; // Full size of temp buffer pointed to
+ // by pvBankBufferPlane0
+
+ ULONG ajBits[1]; // Bits will start here for device bitmaps
+ PSAVED_SCREEN_BITS ssbList; // Pointer to start of linked list of
+ // saved screen bit blocks
+} DEVSURF, *PDEVSURF;
+
+typedef VOID (*PFN_ScreenToScreenBlt)(PDEVSURF, PRECTL, PPOINTL, INT);
+
+// BMF_PHYSDEVICE format type
+
+#define BMF_PHYSDEVICE 0xFF
+#define BMF_DFB 0xFE
+
+// Identifiers used in debugging (DEVSURF.ident)
+
+#define PDEV_IDENT ('V' + ('P' << 8) + ('D' << 16) + ('V' << 24))
+#define DEVSURF_IDENT ('V' + ('S' << 8) + ('R' << 16) + ('F' << 24))
+
+BOOL InitVGA(PPDEV ppdev, BOOL bFirst); // screen.c: initialize VGA mode
+
+#define DRIVER_EXTRA_SIZE 0
+#define ALLOC_TAG 'agvD' // Dvga reversed
+#define DLL_NAME L"vga" // DLL name in Unicode
+
+#define MAX_SCAN_WIDTH 2048 // pixels
+#define DRIVER_OFFSCREEN_REFRESHED 0x04L // if not set, don't use offscreen memory
+#define PLANAR_PELS_PER_CPU_ADDRESS 8
+#define PACKED_PELS_PER_CPU_ADDRESS 2
projects / reactos.git / blobdiff