895 lines
38 KiB
C
895 lines
38 KiB
C
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/******************************Module*Header*******************************\
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* Module Name: driver.h
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*
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* Contains prototypes for the display driver.
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*
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* Copyright (c) 1992-1996 Microsoft Corporation
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\**************************************************************************/
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//////////////////////////////////////////////////////////////////////
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// Warning: The following define is for private use only. It should
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// only be used in such a fashion that when defined as 0,
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// all code specific to punting is optimized out completely.
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//
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// ### Not sure if this should go in or not.
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#define DRIVER_PUNT_ALL 0
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//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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// Put all the conditional-compile constants here. There had better
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// not be many!
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// Set this bit when GDI's HOOK_SYNCHRONIZEACCESS works so that we don't
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// have to worry about synchronizing device-bitmap access. Note that
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// this wasn't an option in the first release of NT:
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#define SYNCHRONIZEACCESS_WORKS 1
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#define DIRECT_ACCESS(ppdev) 1
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// When running on an x86, we can make banked call-backs to GDI where
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// GDI can write directly on the frame buffer. The Alpha has a weird
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// bus scheme, and can't do that:
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#if !defined(_ALPHA_)
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#define GDI_BANKING 1
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#else
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#define GDI_BANKING 1 // was 0
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#endif
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// Both fast and slow patterns are enabled by default:
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#define FASTFILL_PATTERNS 1
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#define SLOWFILL_PATTERNS 1
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// Useful for visualizing the 2-d heap:
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#define DEBUG_HEAP 0
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//////////////////////////////////////////////////////////////////////
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// Miscellaneous shared stuff
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#define DLL_NAME L"w32" // Name of the DLL in UNICODE
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#define STANDARD_DEBUG_PREFIX "W32: " // All debug output is prefixed
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// by this string
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#define ALLOC_TAG '23WD' // Four byte tag (characters in
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// reverse order) used for memory
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// allocations
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#define CLIP_LIMIT 50 // We'll be taking 800 bytes of stack space
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#define DRIVER_EXTRA_SIZE 0 // Size of the DriverExtra information in the
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// DEVMODE structure
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#define TMP_BUFFER_SIZE 8192 // Size in bytes of 'pvTmpBuffer'. Has to
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// be at least enough to store an entire
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// scan line (i.e., 6400 for 1600x1200x32).
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#if defined(ALPHA)
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#define XFER_BUFFERS 16 // Defines the maximum number of write buffers
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// possible on any Alpha. Must be a power
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#else // of two.
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#define XFER_BUFFERS 1 // On non-alpha systems, we don't have to
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// worry about the chip caching our bus
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#endif // writes.
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#define XFER_MASK (XFER_BUFFERS - 1)
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typedef struct _CLIPENUM {
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LONG c;
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RECTL arcl[CLIP_LIMIT]; // Space for enumerating complex clipping
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} CLIPENUM; /* ce, pce */
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typedef struct _PDEV PDEV; // Handy forward declaration
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VOID vSetClipping(PDEV*, RECTL*);
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VOID vResetClipping(PDEV*);
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//////////////////////////////////////////////////////////////////////
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// Text stuff
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typedef struct _XLATECOLORS { // Specifies foreground and background
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ULONG iBackColor; // colours for faking a 1bpp XLATEOBJ
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ULONG iForeColor;
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} XLATECOLORS; /* xlc, pxlc */
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BOOL bEnableText(PDEV*);
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VOID vDisableText(PDEV*);
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VOID vAssertModeText(PDEV*, BOOL);
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VOID vFastText(GLYPHPOS*, ULONG, BYTE*, ULONG, ULONG, RECTL*, RECTL*,
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FLONG, RECTL*, RECTL*);
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VOID vClearMemDword(ULONG*, ULONG);
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//////////////////////////////////////////////////////////////////////
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// Dither stuff
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// Describes a single colour tetrahedron vertex for dithering:
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typedef struct _VERTEX_DATA {
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ULONG ulCount; // Number of pixels in this vertex
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ULONG ulVertex; // Vertex number
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} VERTEX_DATA; /* vd, pv */
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VERTEX_DATA* vComputeSubspaces(ULONG, VERTEX_DATA*);
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VOID vDitherColor(ULONG*, VERTEX_DATA*, VERTEX_DATA*, ULONG);
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//////////////////////////////////////////////////////////////////////
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// Brush stuff
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// 'Slow' brushes are used when we don't have hardware pattern capability,
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// and we have to handle patterns using screen-to-screen blts:
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#define SLOW_BRUSH_CACHE_DIM 3 // Controls the number of brushes cached
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// in off-screen memory, when we don't
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// have the W32 hardware pattern support.
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// We allocate 3 x 3 brushes, so we can
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// cache a total of 9 brushes:
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#define SLOW_BRUSH_COUNT (SLOW_BRUSH_CACHE_DIM * SLOW_BRUSH_CACHE_DIM)
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#define SLOW_BRUSH_DIMENSION 64 // After alignment is taken care of,
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// every off-screen brush cache entry
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// will be 64 pels in both dimensions
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#define SLOW_BRUSH_ALLOCATION (SLOW_BRUSH_DIMENSION + 8)
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// Actually allocate 72x72 pels for each
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// pattern, using the 8 extra for brush
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// alignment
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// 'Fast' brushes are used when we have hardware pattern capability:
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#define FAST_BRUSH_COUNT 16 // Total number of non-hardware brushes
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// cached off-screen
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#define FAST_BRUSH_DIMENSION 8 // Every off-screen brush cache entry
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// is 8 pels in both dimensions
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#define FAST_BRUSH_ALLOCATION 8 // We have to align ourselves, so this is
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// the dimension of each brush allocation
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// Common to both implementations:
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#define RBRUSH_2COLOR 1 // For RBRUSH flags
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#define TOTAL_BRUSH_COUNT max(FAST_BRUSH_COUNT, SLOW_BRUSH_COUNT)
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// This is the maximum number of brushes
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// we can possibly have cached off-screen
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#define TOTAL_BRUSH_SIZE 64 // We'll only ever handle 8x8 patterns,
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// and this is the number of pels
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typedef struct _BRUSHENTRY BRUSHENTRY;
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// NOTE: Changes to the RBRUSH or BRUSHENTRY structures must be reflected
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// in strucs.inc!
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typedef struct _RBRUSH {
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FLONG fl; // Type flags
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BOOL bTransparent; // TRUE if brush was realized for a transparent
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// blt (meaning colours are white and black),
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// FALSE if not (meaning it's already been
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// colour-expanded to the correct colours).
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// Value is undefined if the brush isn't
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// 2 colour.
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ULONG ulForeColor; // Foreground colour if 1bpp
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ULONG ulBackColor; // Background colour if 1bpp
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POINTL ptlBrushOrg; // Brush origin of cached pattern. Initial
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// value should be -1
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BRUSHENTRY* pbe; // Points to brush-entry that keeps track
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// of the cached off-screen brush bits
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ULONG aulPattern[1]; // Open-ended array for keeping copy of the
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// Don't put anything // actual pattern bits in case the brush
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// after here, or // origin changes, or someone else steals
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// you'll be sorry! // our brush entry (declared as a ULONG
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// for proper dword alignment)
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} RBRUSH; /* rb, prb */
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typedef struct _BRUSHENTRY {
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RBRUSH* prbVerify; // We never dereference this pointer to
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// find a brush realization; it is only
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// ever used in a compare to verify
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// that for a given realized brush, our
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// off-screen brush entry is still valid.
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LONG x; // x-position of cached pattern
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LONG y; // y-position of cached pattern
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} BRUSHENTRY; /* be, pbe */
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typedef union _RBRUSH_COLOR {
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RBRUSH* prb;
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ULONG iSolidColor;
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} RBRUSH_COLOR; /* rbc, prbc */
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BOOL bEnableBrushCache(PDEV*);
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VOID vDisableBrushCache(PDEV*);
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VOID vAssertModeBrushCache(PDEV*, BOOL);
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//////////////////////////////////////////////////////////////////////
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// Stretch stuff
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typedef struct _STR_BLT {
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PDEV* ppdev;
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PBYTE pjSrcScan;
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LONG lDeltaSrc;
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LONG XSrcStart;
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PBYTE pjDstScan;
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LONG lDeltaDst;
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LONG XDstStart;
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LONG XDstEnd;
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LONG YDstStart;
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LONG YDstCount;
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ULONG ulXDstToSrcIntCeil;
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ULONG ulXDstToSrcFracCeil;
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ULONG ulYDstToSrcIntCeil;
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ULONG ulYDstToSrcFracCeil;
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ULONG ulXFracAccumulator;
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ULONG ulYFracAccumulator;
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} STR_BLT;
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typedef VOID (*PFN_DIRSTRETCH)(STR_BLT*);
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VOID vDirectStretch8Narrow(STR_BLT*);
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VOID vDirectStretch8(STR_BLT*);
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VOID vDirectStretch16(STR_BLT*);
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VOID vDirectStretch32(STR_BLT*);
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/////////////////////////////////////////////////////////////////////////
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// Heap stuff
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typedef enum {
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OH_FREE = 0, // The off-screen allocation is available for use
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OH_DISCARDABLE, // The allocation is occupied by a discardable bitmap
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// that may be moved out of off-screen memory
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OH_PERMANENT, // The allocation is occupied by a permanent bitmap
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// that cannot be moved out of off-screen memory
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} OHSTATE;
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typedef struct _DSURF DSURF;
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typedef struct _OH OH;
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typedef struct _OH
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{
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OHSTATE ohState; // State of off-screen allocation
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LONG x; // x-coordinate of left edge of allocation
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LONG y; // y-coordinate of top edge of allocation
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LONG xy; // y-coordinate of top edge of allocation
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LONG cx; // Width in pixels of allocation
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LONG cy; // Height in pixels of allocation
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LONG cxReserved; // Dimensions of original reserved rectangle;
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LONG cyReserved; // zero if rectangle is not 'reserved'
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OH* pohNext; // When OH_FREE or OH_RESERVE, points to the next
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// free node, in ascending cxcy value. This is
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// kept as a circular doubly-linked list with a
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// sentinel at the end.
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// When OH_DISCARDABLE, points to the next most
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// recently created allocation. This is kept as
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// a circular doubly-linked list.
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OH* pohPrev; // Opposite of 'pohNext'
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ULONG cxcy; // Width and height in a dword for searching
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OH* pohLeft; // Adjacent allocation when in-use or available
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OH* pohUp;
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OH* pohRight;
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OH* pohDown;
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DSURF* pdsurf; // Points to our DSURF structure
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VOID* pvScan0; // Points to start of first scan-line
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}; /* oh, poh */
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// This is the smallest structure used for memory allocations:
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typedef struct _OHALLOC OHALLOC;
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typedef struct _OHALLOC
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{
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OHALLOC* pohaNext;
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OH aoh[1];
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} OHALLOC; /* oha, poha */
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typedef struct _HEAP
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{
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LONG cxMax; // Largest possible free space by area
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LONG cyMax;
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OH ohFree; // Head of the free list, containing those
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// rectangles in off-screen memory that are
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// available for use. pohNext points to
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// hte smallest available rectangle, and pohPrev
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// points to the largest available rectangle,
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// sorted by cxcy.
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OH ohDiscardable; // Head of the discardable list that contains all
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// bitmaps located in offscreen memory that
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// are eligible to be tossed out of the heap.
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// It is kept in order of creation: pohNext
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// points to the most recently created; pohPrev
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// points to the least recently created.
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OH ohPermanent; // List of permanently allocated rectangles
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OH* pohFreeList; // List of OH node data structures available
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OHALLOC* pohaChain; // Chain of allocations
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} HEAP; /* heap, pheap */
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typedef enum {
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DT_SCREEN, // Surface is kept in screen memory
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DT_DIB // Surface is kept as a DIB
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} DSURFTYPE; /* dt, pdt */
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typedef struct _DSURF
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{
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DSURFTYPE dt; // DSURF status (whether off-screen or in a DIB)
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SIZEL sizl; // Size of the original bitmap (could be smaller
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// than poh->sizl)
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PDEV* ppdev; // Need this for deleting the bitmap
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union {
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OH* poh; // If DT_SCREEN, points to off-screen heap node
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SURFOBJ* pso; // If DT_DIB, points to locked GDI surface
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};
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// The following are used for DT_DIB only...
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ULONG cBlt; // Counts down the number of blts necessary at
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// the current uniqueness before we'll consider
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// putting the DIB back into off-screen memory
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ULONG iUniq; // Tells us whether there have been any heap
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// 'free's since the last time we looked at
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// this DIB
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} DSURF; /* dsurf, pdsurf */
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// GDI expects dword alignment for any bitmaps on which it is expected
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// to draw. Since we occasionally ask GDI to draw directly on our off-
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// screen bitmaps, this means that any off-screen bitmaps must be dword
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// aligned in the frame buffer. We enforce this merely by ensuring that
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// all off-screen bitmaps are four-pel aligned (we may waste a couple of
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// pixels at the higher colour depths):
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#define HEAP_X_ALIGNMENT 4
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// Number of blts necessary before we'll consider putting a DIB DFB back
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// into off-screen memory:
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#define HEAP_COUNT_DOWN 6
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// Flags for 'pohAllocate':
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typedef enum {
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FLOH_ONLY_IF_ROOM = 0x0001, // Don't kick stuff out of off-
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// screen memory to make room
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FLOH_MAKE_PERMANENT = 0x0002, // Allocate a permanent entry
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FLOH_RESERVE = 0x0004, // Allocate an off-screen entry,
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// but let it be used by discardable
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// bitmaps until it's needed
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} FLOH;
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// Publicly callable heap APIs:
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OH* pohAllocate(PDEV*, POINTL*, LONG, LONG, FLOH);
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BOOL bOhCommit(PDEV*, OH*, BOOL);
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OH* pohFree(PDEV*, OH*);
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OH* pohMoveOffscreenDfbToDib(PDEV*, OH*);
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|
|
BOOL bMoveDibToOffscreenDfbIfRoom(PDEV*, DSURF*);
|
||
|
|
BOOL bMoveAllDfbsFromOffscreenToDibs(PDEV* ppdev);
|
||
|
|
|
||
|
|
BOOL bEnableOffscreenHeap(PDEV*);
|
||
|
|
VOID vDisableOffscreenHeap(PDEV*);
|
||
|
|
BOOL bAssertModeOffscreenHeap(PDEV*, BOOL);
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////
|
||
|
|
// Bank manager stuff
|
||
|
|
|
||
|
|
#define BANK_DATA_SIZE 80 // Number of bytes to allocate for the
|
||
|
|
// miniport down-loaded bank code working
|
||
|
|
// space
|
||
|
|
|
||
|
|
typedef struct _BANK
|
||
|
|
{
|
||
|
|
// Private data:
|
||
|
|
|
||
|
|
RECTL rclDraw; // Rectangle describing the remaining undrawn
|
||
|
|
// portion of the drawing operation
|
||
|
|
RECTL rclSaveBounds; // Saved from original CLIPOBJ for restoration
|
||
|
|
BYTE iSaveDComplexity; // Saved from original CLIPOBJ for restoration
|
||
|
|
BYTE fjSaveOptions; // Saved from original CLIPOBJ for restoration
|
||
|
|
LONG iBank; // Current bank
|
||
|
|
PDEV* ppdev; // Saved copy
|
||
|
|
|
||
|
|
// Public data:
|
||
|
|
|
||
|
|
SURFOBJ* pso; // Surface wrapped around the bank. Has to be
|
||
|
|
// passed as the surface in any banked call-
|
||
|
|
// back.
|
||
|
|
CLIPOBJ* pco; // Clip object that is the intersection of the
|
||
|
|
// original clip object with the bounds of the
|
||
|
|
// current bank. Has to be passed as the clip
|
||
|
|
// object in any banked call-back.
|
||
|
|
|
||
|
|
} BANK; /* bnk, pbnk */
|
||
|
|
|
||
|
|
typedef enum {
|
||
|
|
BANK_OFF = 0, // We've finished using the memory aperture
|
||
|
|
BANK_ON, // We're about to use the memory aperture
|
||
|
|
BANK_DISABLE, // We're about to enter full-screen; shut down banking
|
||
|
|
BANK_ENABLE, // We've exited full-screen; re-enable banking
|
||
|
|
|
||
|
|
} BANK_MODE; /* bankm, pbankm */
|
||
|
|
|
||
|
|
typedef VOID (FNBANKMAP)(PDEV*, LONG);
|
||
|
|
typedef VOID (FNBANKSELECTMODE)(PDEV*, BANK_MODE);
|
||
|
|
typedef VOID (FNBANKINITIALIZE)(PDEV*, BOOL);
|
||
|
|
typedef BOOL (FNBANKCOMPUTE)(PDEV*, RECTL*, RECTL*, LONG*, LONG*);
|
||
|
|
|
||
|
|
VOID vBankStart(PDEV*, RECTL*, CLIPOBJ*, BANK*);
|
||
|
|
BOOL bBankEnum(BANK*);
|
||
|
|
|
||
|
|
FNBANKCOMPUTE bBankComputeNonPower2;
|
||
|
|
FNBANKCOMPUTE bBankComputePower2;
|
||
|
|
|
||
|
|
BOOL bEnableBanking(PDEV*);
|
||
|
|
VOID vDisableBanking(PDEV*);
|
||
|
|
VOID vAssertModeBanking(PDEV*, BOOL);
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////
|
||
|
|
// Pointer stuff
|
||
|
|
|
||
|
|
#define POINTER_DATA_SIZE 40 // Number of bytes to allocate for the
|
||
|
|
// miniport down-loaded pointer code
|
||
|
|
// working space
|
||
|
|
#define HW_INVISIBLE_OFFSET 2 // Offset from 'ppdev->yPointerBuffer'
|
||
|
|
// to the invisible pointer
|
||
|
|
#define HW_POINTER_DIMENSION 64 // Maximum dimension of default
|
||
|
|
// (built-in) hardware pointer
|
||
|
|
#define HW_POINTER_HIDE 63 // Hardware pointer start pixel
|
||
|
|
// position used to hide the pointer
|
||
|
|
|
||
|
|
typedef VOID (FNSHOWPOINTER)(VOID*, BOOL);
|
||
|
|
typedef VOID (FNMOVEPOINTER)(VOID*, LONG, LONG);
|
||
|
|
typedef BOOL (FNSETPOINTERSHAPE)(VOID*, LONG, LONG, LONG, LONG, LONG, LONG,
|
||
|
|
BYTE*);
|
||
|
|
typedef VOID (FNENABLEPOINTER)(VOID*, BOOL);
|
||
|
|
|
||
|
|
BOOL bEnablePointer(PDEV*);
|
||
|
|
VOID vDisablePointer(PDEV*);
|
||
|
|
VOID vAssertModePointer(PDEV*, BOOL);
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////
|
||
|
|
// Palette stuff
|
||
|
|
|
||
|
|
BOOL bEnablePalette(PDEV*);
|
||
|
|
VOID vDisablePalette(PDEV*);
|
||
|
|
VOID vAssertModePalette(PDEV*, BOOL);
|
||
|
|
|
||
|
|
BOOL bInitializePalette(PDEV*, DEVINFO*);
|
||
|
|
VOID vUninitializePalette(PDEV*);
|
||
|
|
|
||
|
|
#define MAX_CLUT_SIZE (sizeof(VIDEO_CLUT) + (sizeof(ULONG) * 256))
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////
|
||
|
|
// DirectDraw stuff
|
||
|
|
|
||
|
|
// There's a 64K granularity that applies to the mapping of the frame
|
||
|
|
// buffer into the application's address space:
|
||
|
|
|
||
|
|
#define ROUND_UP_TO_64K(x) (((ULONG)(x) + 0x10000 - 1) & ~(0x10000 - 1))
|
||
|
|
|
||
|
|
typedef struct _FLIPRECORD
|
||
|
|
{
|
||
|
|
FLATPTR fpFlipFrom; // Surface we last flipped from
|
||
|
|
LONGLONG liFlipTime; // Time at which last flip
|
||
|
|
// occured
|
||
|
|
LONGLONG liFlipDuration; // Precise amount of time it
|
||
|
|
// takes from vblank to vblank
|
||
|
|
BOOL bHaveEverCrossedVBlank; // True if we noticed that we
|
||
|
|
// switched from inactive to
|
||
|
|
// vblank
|
||
|
|
BOOL bWasEverInDisplay; // True if we ever noticed that
|
||
|
|
// we were inactive
|
||
|
|
BOOL bFlipFlag; // True if we think a flip is
|
||
|
|
// still pending
|
||
|
|
} FLIPRECORD;
|
||
|
|
|
||
|
|
BOOL bEnableDirectDraw(PDEV*);
|
||
|
|
VOID vDisableDirectDraw(PDEV*);
|
||
|
|
VOID vAssertModeDirectDraw(PDEV*, BOOL);
|
||
|
|
|
||
|
|
//////////////////////////////////////////////////////////////////////
|
||
|
|
// Low-level blt function prototypes
|
||
|
|
|
||
|
|
typedef VOID (FNFILL)(PDEV*, LONG, RECTL*, ROP4, RBRUSH_COLOR, POINTL*);
|
||
|
|
typedef VOID (FNXFER)(PDEV*, LONG, RECTL*, ROP4, SURFOBJ*, POINTL*,
|
||
|
|
RECTL*, XLATEOBJ*);
|
||
|
|
typedef VOID (FNCOPY)(PDEV*, LONG, RECTL*, ROP4, POINTL*, RECTL*);
|
||
|
|
typedef VOID (FNFASTPATREALIZE)(PDEV*, RBRUSH*, POINTL*, BOOL);
|
||
|
|
typedef VOID (FNBITS)(PDEV*, SURFOBJ*, RECTL*, POINTL*);
|
||
|
|
typedef VOID (FNLOWXFER)(PDEV*, BYTE*, LONG, LONG, LONG);
|
||
|
|
|
||
|
|
FNFILL vPatternFillScr;
|
||
|
|
FNFILL vSolidFillScr;
|
||
|
|
FNFILL vSolidFillScr24;
|
||
|
|
FNXFER vSlowXfer1bpp;
|
||
|
|
FNCOPY vScrToScr;
|
||
|
|
FNFASTPATREALIZE vFastPatRealize;
|
||
|
|
FNXFER vXferNativeSrccopy;
|
||
|
|
FNXFER vXferBlt8i;
|
||
|
|
FNXFER vXferBlt16i;
|
||
|
|
FNXFER vXferBlt24i;
|
||
|
|
FNXFER vXferBlt8p;
|
||
|
|
FNXFER vXferBlt16p;
|
||
|
|
FNXFER vXferBlt24p;
|
||
|
|
FNXFER vXferScreenTo1bpp;
|
||
|
|
FNBITS vPutBits;
|
||
|
|
FNBITS vGetBits;
|
||
|
|
FNBITS vPutBitsLinear;
|
||
|
|
FNBITS vGetBitsLinear;
|
||
|
|
|
||
|
|
FNXFER vET6000SlowXfer1bpp;
|
||
|
|
FNXFER vXferET6000;
|
||
|
|
|
||
|
|
FNLOWXFER vXfer_BYTES;
|
||
|
|
FNLOWXFER vXfer_DWORDS;
|
||
|
|
FNLOWXFER vXferI_1_Byte;
|
||
|
|
FNLOWXFER vXferI_2_Bytes;
|
||
|
|
FNLOWXFER vXferI_3_Bytes;
|
||
|
|
FNLOWXFER vXferP_1_Byte;
|
||
|
|
FNLOWXFER vXferP_2_Bytes;
|
||
|
|
FNLOWXFER vXferP_3_Bytes;
|
||
|
|
|
||
|
|
VOID vPutBits(PDEV*, SURFOBJ*, RECTL*, POINTL*);
|
||
|
|
VOID vGetBits(PDEV*, SURFOBJ*, RECTL*, POINTL*);
|
||
|
|
VOID vGetBitsLinear(PDEV*, SURFOBJ*, RECTL*, POINTL*);
|
||
|
|
VOID vIoSlowPatRealize(PDEV*, RBRUSH*, BOOL);
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////////////////
|
||
|
|
// Capabilities flags
|
||
|
|
//
|
||
|
|
// These are private flags passed to us from the W32 miniport. They
|
||
|
|
// come from the high word of the 'AttributeFlags' field of the
|
||
|
|
// 'VIDEO_MODE_INFORMATION' structure (found in 'ntddvdeo.h') passed
|
||
|
|
// to us via an 'VIDEO_QUERY_AVAIL_MODES' or 'VIDEO_QUERY_CURRENT_MODE'
|
||
|
|
// IOCTL.
|
||
|
|
//
|
||
|
|
// NOTE: These definitions must match those in the W32 miniport's 'W32.h'!
|
||
|
|
|
||
|
|
typedef enum {
|
||
|
|
CAPS_HW_PATTERNS = 0x00010000, // 8x8 hardware pattern support
|
||
|
|
CAPS_MM_TRANSFER = 0x00020000, // Memory-mapped image transfers
|
||
|
|
CAPS_MM_IO = 0x00040000, // Memory-mapped I/O
|
||
|
|
CAPS_MM_32BIT_TRANSFER = 0x00080000, // Can do 32bit bus size transfers
|
||
|
|
CAPS_16_ENTRY_FIFO = 0x00100000, // At least 16 entries in FIFO
|
||
|
|
CAPS_SW_POINTER = 0x00200000, // No hardware pointer; use software
|
||
|
|
// simulation
|
||
|
|
CAPS_BT485_POINTER = 0x00400000, // Use Brooktree 485 pointer
|
||
|
|
CAPS_MASKBLT_CAPABLE = 0x00800000, // Hardware can handle masked blts
|
||
|
|
CAPS_NEW_BANK_CONTROL = 0x01000000, // Set if 801/805/928 style banking
|
||
|
|
CAPS_NEWER_BANK_CONTROL = 0x02000000, // Set if 864/964 style banking
|
||
|
|
CAPS_RE_REALIZE_PATTERN = 0x04000000, // Set if we have to work around the
|
||
|
|
// 864/964 hardware pattern bug
|
||
|
|
CAPS_SLOW_MONO_EXPANDS = 0x08000000, // Set if we have to slow down
|
||
|
|
// monochrome expansions
|
||
|
|
CAPS_MM_GLYPH_EXPAND = 0x10000000, // Use memory-mapped I/O glyph-
|
||
|
|
// expand method of drawing text
|
||
|
|
// (always implied for non-x86)
|
||
|
|
CAPS_SCALE_POINTER = 0x20000000, // Set if the W32 hardware pointer
|
||
|
|
// x position has to be scaled by
|
||
|
|
// two
|
||
|
|
CAPS_TI025_POINTER = 0x40000000, // Use TI TVP3025 pointer
|
||
|
|
} CAPS;
|
||
|
|
|
||
|
|
#define CAPS_DAC_POINTER (CAPS_BT485_POINTER | CAPS_TI025_POINTER)
|
||
|
|
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////////////////
|
||
|
|
// Miniport stuff
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
ULONG ulPhysicalAddress;
|
||
|
|
ULONG ulLength;
|
||
|
|
ULONG ulInIoSpace;
|
||
|
|
PVOID pvVirtualAddress;
|
||
|
|
} W32_ADDRESS_MAPPING_INFORMATION, *PW32_ADDRESS_MAPPING_INFORMATION;
|
||
|
|
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////////////////
|
||
|
|
// Status flags
|
||
|
|
|
||
|
|
typedef enum {
|
||
|
|
STAT_GLYPH_CACHE = 0x0001, // Glyph cache successfully allocated
|
||
|
|
STAT_BRUSH_CACHE = 0x0002, // Brush cache successfully allocated
|
||
|
|
STAT_DIRECTDRAW = 0x0004, // DirectDraw is enabled
|
||
|
|
} STATUS;
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////////////////
|
||
|
|
// The Physical Device data structure
|
||
|
|
|
||
|
|
typedef struct _PDEV
|
||
|
|
{
|
||
|
|
LONG xOffset;
|
||
|
|
LONG yOffset;
|
||
|
|
LONG xyOffset;
|
||
|
|
BYTE* pjBase; // Video coprocessor base
|
||
|
|
BYTE* pjScreen; // Points to base screen address
|
||
|
|
LONG iBoard; // Logical multi-board identifier
|
||
|
|
// (zero by default)
|
||
|
|
ULONG iBitmapFormat; // BMF_8BPP or BMF_16BPP or BMF_24BPP
|
||
|
|
// (our current colour depth)
|
||
|
|
ULONG ulChipID;
|
||
|
|
ULONG ulRevLevel;
|
||
|
|
|
||
|
|
// Precomputed values for the three aperatures in linear memory.
|
||
|
|
|
||
|
|
BYTE* pjMmu0;
|
||
|
|
BYTE* pjMmu1;
|
||
|
|
BYTE* pjMmu2;
|
||
|
|
|
||
|
|
// -------------------------------------------------------------------
|
||
|
|
// NOTE: Changes up to here in the PDEV structure must be reflected in
|
||
|
|
// i386\strucs.inc (assuming you're on an x86, of course)!
|
||
|
|
|
||
|
|
CAPS flCaps; // Capabilities flags
|
||
|
|
STATUS flStatus; // Status flags
|
||
|
|
BOOL bEnabled; // In graphics mode (not full-screen)
|
||
|
|
|
||
|
|
HANDLE hDriver; // Handle to \Device\Screen
|
||
|
|
HDEV hdevEng; // Engine's handle to PDEV
|
||
|
|
HSURF hsurfScreen; // Engine's handle to screen surface
|
||
|
|
DSURF* pdsurfScreen; // Our private DSURF for the screen
|
||
|
|
|
||
|
|
LONG cxScreen; // Visible screen width
|
||
|
|
LONG cyScreen; // Visible screen height
|
||
|
|
LONG cxMemory; // Width of Video RAM
|
||
|
|
LONG cyMemory; // Height of Video RAM
|
||
|
|
ULONG ulMode; // Mode the mini-port driver is in.
|
||
|
|
LONG lDelta; // Distance from one scan to the next.
|
||
|
|
|
||
|
|
FLONG flHooks; // What we're hooking from GDI
|
||
|
|
LONG cPelSize; // 0 if 8bpp, 1 if 16bpp, 2 if 32bpp
|
||
|
|
LONG cBpp; // 1 if 8bpp, 2 if 16bpp, 3 if 32bpp
|
||
|
|
ULONG ulWhite; // 0xff if 8bpp, 0xffff if 16bpp,
|
||
|
|
// 0xffffffff if 32bpp
|
||
|
|
UCHAR* pucCsrBase; // Mapped IO port base for this PDEV
|
||
|
|
VOID* pvTmpBuffer; // General purpose temporary buffer,
|
||
|
|
// TMP_BUFFER_SIZE bytes in size
|
||
|
|
// (Remember to synchronize if you
|
||
|
|
// use this for device bitmaps or
|
||
|
|
// async pointers)
|
||
|
|
UCHAR* apjMmXfer[XFER_BUFFERS];// Pre-computed array of unique
|
||
|
|
USHORT* apwMmXfer[XFER_BUFFERS];// addresses for doing memory-mapped
|
||
|
|
ULONG* apdMmXfer[XFER_BUFFERS];// transfers without memory barriers
|
||
|
|
|
||
|
|
////////// Low-level blt function pointers:
|
||
|
|
|
||
|
|
FNFILL* pfnFillSolid;
|
||
|
|
FNFILL* pfnFillPat;
|
||
|
|
FNXFER* pfnXfer1bpp;
|
||
|
|
FNXFER* pfnXferNative;
|
||
|
|
FNCOPY* pfnCopyBlt;
|
||
|
|
FNFASTPATREALIZE* pfnFastPatRealize;
|
||
|
|
FNBITS* pfnGetBits;
|
||
|
|
FNBITS* pfnPutBits;
|
||
|
|
|
||
|
|
////////// Palette stuff:
|
||
|
|
|
||
|
|
PALETTEENTRY* pPal; // The palette if palette managed
|
||
|
|
HPALETTE hpalDefault; // GDI handle to the default palette.
|
||
|
|
FLONG flRed; // Red mask for 16/32bpp bitfields
|
||
|
|
FLONG flGreen; // Green mask for 16/32bpp bitfields
|
||
|
|
FLONG flBlue; // Blue mask for 16/32bpp bitfields
|
||
|
|
|
||
|
|
////////// Heap stuff:
|
||
|
|
|
||
|
|
HEAP heap; // All our off-screen heap data
|
||
|
|
ULONG iHeapUniq; // Incremented every time room is freed
|
||
|
|
// in the off-screen heap
|
||
|
|
SURFOBJ* psoPunt; // Wrapper surface for having GDI draw
|
||
|
|
// on off-screen bitmaps
|
||
|
|
SURFOBJ* psoPunt2; // Another one for off-screen to off-
|
||
|
|
// screen blts
|
||
|
|
OH* pohScreen; // Allocation structure for the screen
|
||
|
|
|
||
|
|
////////// Banking stuff:
|
||
|
|
|
||
|
|
BOOL bAutoBanking; // True if the system is set up to have
|
||
|
|
// the memory manager do the banking
|
||
|
|
LONG cjBank; // Size of a bank, in bytes
|
||
|
|
LONG cPower2ScansPerBank; // Used by 'bBankComputePower2'
|
||
|
|
LONG cPower2BankSizeInBytes; // Used by 'bBankComputePower2'
|
||
|
|
CLIPOBJ* pcoBank; // Clip object for banked call backs
|
||
|
|
SURFOBJ* psoBank; // Surface object for banked call backs
|
||
|
|
SURFOBJ* psoFrameBuffer; // Surface object for non-banked call backs
|
||
|
|
VOID* pvBankData; // Points to aulBankData[0]
|
||
|
|
ULONG aulBankData[BANK_DATA_SIZE / 4];
|
||
|
|
// Private work area for downloaded
|
||
|
|
// miniport banking code
|
||
|
|
|
||
|
|
FNBANKMAP* pfnBankMap;
|
||
|
|
FNBANKSELECTMODE* pfnBankSelectMode;
|
||
|
|
FNBANKCOMPUTE* pfnBankCompute;
|
||
|
|
|
||
|
|
////////// Pointer stuff:
|
||
|
|
|
||
|
|
LONG xPointerHot; // xHot of current hardware pointer
|
||
|
|
LONG yPointerHot; // yHot of current hardware pointer
|
||
|
|
|
||
|
|
LONG cjPointerOffset; // Byte offset from start of frame
|
||
|
|
// buffer to off-screen memory where
|
||
|
|
// we stored the pointer shape
|
||
|
|
LONG xPointerShape; // x-coordinate
|
||
|
|
LONG yPointerShape; // y-coordinate
|
||
|
|
LONG iPointerBank; // Bank containing pointer shape
|
||
|
|
VOID* pvPointerShape; // Points to pointer shape when bank
|
||
|
|
// is mapped in
|
||
|
|
LONG dyPointer; // Start y-pixel position for the
|
||
|
|
// current pointer
|
||
|
|
LONG cPointerShift; // Horizontal scaling factor for
|
||
|
|
// hardware pointer position
|
||
|
|
|
||
|
|
ULONG ulHwGraphicsCursorModeRegister_45;
|
||
|
|
// Default value for index 45
|
||
|
|
VOID* pvPointerData; // Points to ajPointerData[0]
|
||
|
|
BYTE ajPointerData[POINTER_DATA_SIZE];
|
||
|
|
// Private work area for downloaded
|
||
|
|
// miniport pointer code
|
||
|
|
|
||
|
|
FNSHOWPOINTER* pfnShowPointer;
|
||
|
|
FNMOVEPOINTER* pfnMovePointer;
|
||
|
|
FNSETPOINTERSHAPE* pfnSetPointerShape;
|
||
|
|
FNENABLEPOINTER* pfnEnablePointer;
|
||
|
|
|
||
|
|
////////// Brush stuff:
|
||
|
|
|
||
|
|
BOOL bRealizeTransparent; // Hint to DrvRealizeBrush for whether
|
||
|
|
// the brush should be realized as
|
||
|
|
// transparent or not
|
||
|
|
LONG iBrushCache; // Index for next brush to be allocated
|
||
|
|
LONG cBrushCache; // Total number of brushes cached
|
||
|
|
BRUSHENTRY abe[TOTAL_BRUSH_COUNT]; // Keeps track of brush cache
|
||
|
|
|
||
|
|
// W32 specific stuff
|
||
|
|
|
||
|
|
BYTE* pjPorts; // Video port base
|
||
|
|
ULONG w32PatternWrap; // Value for the Pattern Wrap register
|
||
|
|
// 8x8 pixels (varies with pel depth)
|
||
|
|
|
||
|
|
W32MMUINFO w32MmuInfo;
|
||
|
|
ULONG ulSolidColorOffset;
|
||
|
|
W32SPRITEDATA W32SpriteData;
|
||
|
|
|
||
|
|
// Rendering extensions colour information.
|
||
|
|
|
||
|
|
UCHAR rDepth; // Number of red bits
|
||
|
|
UCHAR gDepth; // Number of green bits
|
||
|
|
UCHAR bDepth; // Number of blue bits
|
||
|
|
UCHAR aDepth; // Number of alpha bits
|
||
|
|
UCHAR rBitShift; // Left bit-shift for red component
|
||
|
|
UCHAR gBitShift; // Left bit-shift for green component
|
||
|
|
UCHAR bBitShift; // Left bit-shift for blue component
|
||
|
|
UCHAR aBitShift; // Left bit-shift for alpha component
|
||
|
|
|
||
|
|
#if 0
|
||
|
|
////////// DCI stuff:
|
||
|
|
|
||
|
|
BOOL bSupportDCI; // True if miniport supports DCI
|
||
|
|
|
||
|
|
////////// 3D DDI Rendering Extension stuff:
|
||
|
|
|
||
|
|
VOID* pvOut; // Points to current output buffer
|
||
|
|
VOID* pvOutMax; // Points to end of current output buffer
|
||
|
|
VOID* pvInMax; // Points to end of current input buffer
|
||
|
|
OH* pohFrontBuffer; // Allocation structure for the screen
|
||
|
|
OH* pohBackBuffer; // Allocation structure for optional
|
||
|
|
// off-screen back buffer
|
||
|
|
LONG cDoubleBufferRef; // Reference count for current number
|
||
|
|
// of RC's that have active double-
|
||
|
|
// buffers
|
||
|
|
POINTL ptlDoubleBuffer[2]; // (x, y) positions of front and back
|
||
|
|
// buffers in video memory
|
||
|
|
// 0 -- RX_BACK_LEFT
|
||
|
|
// 1 -- RX_FRONT_LEFT
|
||
|
|
// Note: Make sure that the index
|
||
|
|
// is in the range [0, 1]!
|
||
|
|
#endif
|
||
|
|
|
||
|
|
// Extensions added for the ET6000
|
||
|
|
|
||
|
|
LONG lBltBufferPitch; // Pitch of our blt buffer.
|
||
|
|
OH* pohBltBuffer; // Pointer to offscreen memory used for
|
||
|
|
// double buffering blts and stretches.
|
||
|
|
ULONG PCIConfigSpaceAddr; // The Offset into IO space for PCI Cfg data
|
||
|
|
|
||
|
|
/////////// DirectDraw stuff:
|
||
|
|
|
||
|
|
FLIPRECORD flipRecord; // Used to track VBlank status
|
||
|
|
DWORD dwLinearCnt; // Reference count of active
|
||
|
|
// DirectDraw Locks
|
||
|
|
OH* pohDirectDraw; // Off-screen heap allocation for use
|
||
|
|
// by DirectDraw
|
||
|
|
} PDEV, *PPDEV;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////
|
||
|
|
// Miscellaneous prototypes:
|
||
|
|
|
||
|
|
BOOL bIntersect(RECTL*, RECTL*, RECTL*);
|
||
|
|
LONG cIntersect(RECTL*, RECTL*, LONG);
|
||
|
|
BOOL bFastFill(PDEV*, LONG, POINTFIX*, ULONG, ULONG, ULONG, RBRUSH*);
|
||
|
|
DWORD getAvailableModes(HANDLE, PVIDEO_MODE_INFORMATION*, DWORD*);
|
||
|
|
|
||
|
|
BOOL bInitializeModeFields(PDEV*, GDIINFO*, DEVINFO*, DEVMODEW*);
|
||
|
|
|
||
|
|
BOOL bEnableHardware(PDEV*);
|
||
|
|
VOID vDisableHardware(PDEV*);
|
||
|
|
BOOL bAssertModeHardware(PDEV*, BOOL);
|
||
|
|
|
||
|
|
extern BYTE aMixToRop3[];
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////
|
||
|
|
// The x86 C compiler insists on making a divide and modulus operation
|
||
|
|
// into two DIVs, when it can in fact be done in one. So we use this
|
||
|
|
// macro.
|
||
|
|
//
|
||
|
|
// Note: QUOTIENT_REMAINDER implicitly takes unsigned arguments.
|
||
|
|
|
||
|
|
#if defined(i386)
|
||
|
|
|
||
|
|
#define QUOTIENT_REMAINDER(ulNumerator, ulDenominator, ulQuotient, ulRemainder) \
|
||
|
|
{ \
|
||
|
|
__asm mov eax, ulNumerator \
|
||
|
|
__asm sub edx, edx \
|
||
|
|
__asm div ulDenominator \
|
||
|
|
__asm mov ulQuotient, eax \
|
||
|
|
__asm mov ulRemainder, edx \
|
||
|
|
}
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
#define QUOTIENT_REMAINDER(ulNumerator, ulDenominator, ulQuotient, ulRemainder) \
|
||
|
|
{ \
|
||
|
|
ulQuotient = (ULONG) ulNumerator / (ULONG) ulDenominator; \
|
||
|
|
ulRemainder = (ULONG) ulNumerator % (ULONG) ulDenominator; \
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////
|
||
|
|
// OVERLAP - Returns TRUE if the same-size lower-right exclusive
|
||
|
|
// rectangles defined by 'pptl' and 'prcl' overlap:
|
||
|
|
|
||
|
|
#define OVERLAP(prcl, pptl) \
|
||
|
|
(((prcl)->right > (pptl)->x) && \
|
||
|
|
((prcl)->bottom > (pptl)->y) && \
|
||
|
|
((prcl)->left < ((pptl)->x + (prcl)->right - (prcl)->left)) && \
|
||
|
|
((prcl)->top < ((pptl)->y + (prcl)->bottom - (prcl)->top)))
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////
|
||
|
|
// SWAP - Swaps the value of two variables, using a temporary variable
|
||
|
|
|
||
|
|
#define SWAP32(a, b) \
|
||
|
|
{ \
|
||
|
|
register ULONG tmp; \
|
||
|
|
tmp = (ULONG)(a); \
|
||
|
|
(ULONG)(a) = (ULONG)(b); \
|
||
|
|
(ULONG)(b) = tmp; \
|
||
|
|
}
|
||
|
|
|
||
|
|
#define SWAP(a, b, tmp) { (tmp) = (a); (a) = (b); (b) = (tmp); }
|
||
|
|
|
||
|
|
//////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
_inline ULONG COLOR_REPLICATE(PDEV* ppdev, ULONG x)
|
||
|
|
{
|
||
|
|
ULONG ulResult = x;
|
||
|
|
if (ppdev->cBpp == 1)
|
||
|
|
{
|
||
|
|
ulResult |= (ulResult << 8);
|
||
|
|
}
|
||
|
|
if (ppdev->cBpp <= 2)
|
||
|
|
{
|
||
|
|
ulResult |= (ulResult << 16);
|
||
|
|
}
|
||
|
|
return(ulResult);
|
||
|
|
}
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////
|
||
|
|
// DUMPVAR - Dumps a variable name and value to the debugger.
|
||
|
|
// usage -> DUMPVAR(ppdev->cjPointerOffset,"%xh");
|
||
|
|
|
||
|
|
#define DUMPVAR(x,format_str) DISPDBG((0,#x" = "format_str,x));
|
||
|
|
|