Graphics Adapter Device Driver Reference/Data Types
Reprint Courtesy of International Business Machines Corporation, © International Business Machines Corporation
Proceed to the next section for a description of the data types referenced in this book.
Contents
- 1 ADAPTERINFO
- 2 APIRET
- 3 BANKDATA
- 4 BITBLTINFO
- 5 BLTRECT
- 6 BMAPINFO
- 7 BUFFER
- 8 CAPSINFO
- 9 CHAININFO
- 10 CLUTDATA
- 11 CODECINFO
- 12 COLORINFO
- 13 CUSTPALINFO
- 14 DRIVERCAPS
- 15 DEVFONTINFO
- 16 FBINFO
- 17 FONTDATA
- 18 GDDINITIN
- 19 GDDINITOUT
- 20 GDDMODEINFO
- 21 GHBTBL
- 22 GLBTBL
- 23 GRADDINFO
- 24 GLYPHINFO
- 25 HWBANKIN
- 26 HWBANKOUT
- 27 HWEVENTIN
- 28 HWEXTENSION
- 29 HWMOVEPTRIN
- 30 HWPALETTEINFO
- 31 HWREQIN
- 32 HWSETPTRIN
- 33 HWSETPTROUT
- 34 HWSHOWPTRIN
- 35 IMAGEBUF
- 36 IMAGECAPS
- 37 IMAGEPACK
- 38 INITVDM
- 39 INTCRF
- 40 INITPROCOUT
- 41 LINEINFO
- 42 LINEINFO2
- 43 LINEPACK
- 44 MEMINFO
- 45 MONITORINFO
- 46 MONITORMODEINFO
- 47 PALETTEDATA
- 48 POINTL
- 49 RECTL
- 50 RGB
- 51 RGB2
- 52 SVGARGB
- 53 TEXTBLTINFO
- 54 USERCAPSIN
- 55 VCRF
- 56 VIDEO_ADAPTER
- 57 VIDEOMODEINFO
- 58 VIDEORESOURCEPACK
- 59 VIDEOSTATE
- 60 VMIQCI
- 61 VRAMALLOCIN
- 62 VRAMALLOCOUT
- 63 VRAMDATA
- 64 VRAMIN
- 65 VRAMREGISTERIN
- 66 VRAMREGISTEROUT
ADAPTERINFO
The ADAPTERINFO data structure receives information for the current video adapter.
typedef struct _ADAPTERINFO { ULONG cb; /* Length of the structure. */ ULONG ulAdapterID; /* Specifies the adapter by ID. */ CHAR szOEMString[MAX_OEM_STRING]; /* Contains adapter information. */ CHAR szDACString[MAX_DAC_STRING]; /* Contains DAC information. */ CHAR szRevision[MAX_VERSION]; /* Contains version information. */ ULONG ulTotalMemory; /* Total video memory. */ ULONG ulMMIOBaseAddress; /* Base address for memory-mapped I/O registers. */ ULONG ulPIOBaseAddress; /* Base address for I/O ports. */ BYTE bBusType; /* Type of bus (PCI, VLB, and so on.) */ BYTE bEndian; /* Big Endian or little Endian. */ USHORT usDeviceBusID; /* Reserved. */ USHORT usVendorBusID; /* Reserved. */ USHORT usSlotID; /* Reserved. */ } ADAPTERINFO; typedef ADAPTERINFO * FAR * PADAPTERINFO ;
- Fields
- cb(ULONG) Length of the structure.
- ulAdapterID(ULONG) Specifies the adapter by ID.
- szOEMString[MAX_OEM_STRING](CHAR) Contains adapter information.
- Valid value is as follows: MAX_OEM_STRING 128
- szDACString[MAX_DAC_STRING](CHAR) Contains DAC information.
- Valid value is as follows: MAX_DAC_STRING 128
- szRevision[MAX_VERSION](CHAR) Contains version information.
- Valid value is as follows: MAX_VERSION 128
- ulTotalMemory(ULONG) Total video memory.
- ulMMIOBaseAddress(ULONG) Base address for memory-mapped I/O registers.
- ulPIOBaseAddress(ULONG) Base address for I/O ports.
- bBusType(BYTE) Type of bus (PCI, VLB, and so on.)
- The valid values for this flag are as follows:
- ISA_BUS 0
- VLB_BUS 1
- PCI_BUS 2
- EISA_BUS 3
- PCMCIA_BUS 4
- MCA_BUS 5
- bEndian(BYTE) Big Endian or little Endian.
- LITTLE_ENDIAN 0
- BIG_ENDIAN 1
- usDeviceBusID(USHORT) Reserved.
- usVendorBusID(USHORT) Reserved.
- usSlotID(USHORT) Reserved.
APIRET
Unsigned integer in the range 0 through 4 294 967 295.
typedef unsigned long APIRET;
BANKDATA
The BANKDATA data structure contains the current mode ID and the bank number.
typedef struct _BANKDATA { MODEID miBank; /* ID of the current mode. */ ULONG ulBank; /* Current bank number. */ } BANKDATA; typedef BANKDATA *FAR *PBANKDATA;
- Fields
- miBank(MODEID) ID of the current mode.
- ulBank(ULONG) Current bank number.
BITBLTINFO
BitBlt information structure. BitBlt information structure, used for the #GHI_CMD_BITBLT and #VMI_CMD_BITBLT functions.
typedef struct _BITBLTINFO { ULONG ulLength; /* Length of the BITBLTINFO data structure, in bytes. */ ULONG ulBltFlags; /* Flags for rendering of rasterized data. */ ULONG cBlits; /* Count of Blts to be performed. */ ULONG ulROP; /* Raster operation. */ ULONG ulMonoBackROP; /* Background mix if B_APPLY_BACK_ROP is set. */ ULONG ulSrcFGColor; /* Monochrome source Foreground color. */ ULONG ulSrcBGColor; /* Monochrome source Background color and transparent color. */ ULONG ulPatFGColor; /* Monochrome pattern Foreground color. */ ULONG ulPatBGColor; /* Monochrome pattern Background color. */ PBYTE abColors; /* Pointer to color translation table. */ PBMAPINFO pSrcBmapInfo; /* Pointer to source bit map (BMAPINFO) */ PBMAPINFO pDstBmapInfo; /* Pointer to destination bit map (BMAPINFO). */ PBMAPINFO pPatBmapInfo; /* Pointer to pattern bit map (BMAPINFO). */ PPOINTL aptlSrcOrg; /* Pointer to array of source origin POINTLs. */ PPOINTL aptlPatOrg; /* Pointer to array of pattern origin POINTLs. */ PBLTRECT abrDst; /* Pointer to array of Blt rects. */ PRECTL prclSrcBounds; /* Pointer to source bounding rect of source Blts. */ PRECTL prclDstBounds; /* Pointer to destination bounding rect of destination Blts. */ } BITBLTINFO; typedef BITBLTINFO *PBITBLTINFO;
- Fields
- ulLength(ULONG) Length of the BITBLTINFO data structure, in bytes.
- ulBltFlags(ULONG) Flags for rendering of rasterized data.
- Miscellaneous flags used by the graphics engine for rendering of rasterized data:
- BF_DEFAULT_STATE Blt direction is left to right and top to bottom.
- BF_DIR_X_NEGATIVE Blt direction is towards X origin.
- BF_DIR_Y_NEGATIVE Blt direction is towards Y origin.
- BF_ROP_INCL_SRC ROP includes a source bit map.
- BF_ROP_INCL_PAT ROP includes a pattern bit map.
- BF_SRC_TRANSPARENT Source transparent involved. SRC will not change when SRC=BG_COLOR.
- BF_DST_TRANSPARENT Destination transparent involved. DST will not change when DST=BG_COLOR.
- BF_PAT_TRANSPARENT Pattern transparent involved. Pattern not involved when PAT=BG_COLOR.
- BF_PAT_SOLID Pattern is solid; all Foreground color.
- BF_PAT_HOLLOW Pattern is hollow (empty); no Foreground color.
- BF_APPLY_BACK_ROP Treat ROP as Foreground mix and MonoBackROP as Background mix.
- BF_SRC_MONOINVERT Zero (0) bits are Foreground on monochrome SRC bit map.
- BF_PAT_MONOINVERT Zero (0) bits are Foreground on monochrome PAT bit map.
- BF_SR_BITS_EXTERNAL Source bit map bits are in a nondevice-specific format.
- BF_LAST_BLT Defines last blit in a banded BitBlit.
- BF_SRC_Y_FLIP Source Y coordinates are inverted relative to device origin.
- cBlits(ULONG) Count of Blts to be performed.
- ulROP(ULONG) Raster operation.
- ulMonoBackROP(ULONG) Background mix if B_APPLY_BACK_ROP is set.
- ulSrcFGColor(ULONG) Monochrome source Foreground color.
- ulSrcBGColor(ULONG) Monochrome source Background color and transparent color.
- ulPatFGColor(ULONG) Monochrome pattern Foreground color.
- ulPatBGColor(ULONG) Monochrome pattern Background color.
- abColors(PBYTE) Pointer to color translation table.
- pSrcBmapInfo(PBMAPINFO) Pointer to source bit map (#BMAPINFO)
- pDstBmapInfo(#PBMAPINFO) Pointer to destination bit map (BMAPINFO).
- pPatBmapInfo(PBMAPINFO) Pointer to pattern bit map (BMAPINFO).
- aptlSrcOrg(PPOINTL) Pointer to array of source origin #POINTLs.
- aptlPatOrg(PPOINTL) Pointer to array of pattern origin POINTLs.
- abrDst(#PBLTRECT) Pointer to array of Blt rects.
- prclSrcBounds(PRECTL) Pointer to source bounding rect of source Blts.
- prclDstBounds(PRECTL) Pointer to destination bounding rect of destination Blts.
BLTRECT
Destination rectangle for a bitblt operation.
typedef struct _BLTRECT { ULONG ulXOrg; /* X origin of the destination Blt. */ ULONG ulYOrg; /* Y origin of the destination Blt. */ ULONG ulXExt; /* X extent of the BitBlt. */ ULONG ulYExt; /* Y extent of the BitBlt. */ } BLTRECT; typedef BLTRECT *PBLTRECT;
- Fields
- ulXOrg(ULONG) X origin of the destination Blt.
- ulYOrg(ULONG) Y origin of the destination Blt.
- ulXExt(ULONG) X extent of the BitBlt.
- ulYExt(ULONG) Y extent of the BitBlt.
BMAPINFO
Device-dependent bit map information structure.
typedef struct _BMAPINFO { ULONG ulLength; /* Length of the BMAPINFO data structure, in bytes. */ ULONG ulType; /* Description of the Blt. */ ULONG ulWidth; /* Width in pels of the bit map. */ ULONG ulHeight; /* Height in pels of the bit map. */ ULONG ulBpp; /* Number of bits per pel/color depth. */ ULONG ulBytesPerLine; /* Number of aligned bytes per line. */ PBYTE pBits; /* Pointer to bit-map bits. */ } BMAPINFO; typedef BMAPINFO *PBMAPINFO;
- Fields
- ulLength(ULONG) Length of the BMAPINFO data structure, in bytes.
- ulType(ULONG) Description of the Blt.
- BMAP_VRAM Bit map is in video memory.
- BMAP_MEMORY Bit map is in system memory.
- BMAP_VERTICAL_SCAN Scan lines are in a vertical format instead of the default horizontal format.
- BMAP_FONT BitBlit is a set of font character glyphs.
- ulWidth(ULONG) Width in pels of the bit map.
- ulHeight(ULONG) Height in pels of the bit map.
- ulBpp(ULONG) Number of bits per pel/color depth.
- ulBytesPerLine(ULONG) Number of aligned bytes per line.
- pBits(PBYTE) Pointer to bit-map bits.
The scanlines of the bit map can be either byte-aligned or word-aligned.
BUFFER
Data structure inside #INTCRF containing the input/output buffers for the bios call.
typedef struct _BUFFER { BYTE bBufferType; /* Input buffer. */ BYTE bReserved; /* Reserved */ BYTE bSelCRF; /* CRF flag for the selector. */ BYTE bOffCRF; /* CRF flag for the offset. */ VOID pAddress; /* Linear address of the buffer. */ ULONG ulSize; } BUFFER; typedef BUFFER *PBUFFER;
- Fields
- bBufferType(BYTE) Input buffer.
- BUFFER_NONE 0
- INPUT_BUFFER 1
- OUTPUT_BUFFER 2
- bReserved(BYTE) Reserved
- bSelCRF(BYTE) CRF flag for the selector.
- UlONG index into the CRF.
- bOffCRF(BYTE) CRF flag for the offset.
- ULONG index into the CRF.
- pAddressLinear address of the buffer.
- ulSize(ULONG)
CAPSINFO
GRADD capability information.
typedef struct _CAPSINFO { ULONG ulLength; /* Size of the CAPSINFO data structure, in bytes. */ PSZ pszFunctionClassID; /* Name describing function set. */ ULONG ulFCFlags; /* Function class specific flags. */ } CAPSINFO; typedef CAPSINFO *PCAPSINFO;
- Fields
- ulLength(ULONG) Size of the CAPSINFO data structure, in bytes.
- pszFunctionClassID(PSZ) Name describing the function set.
- A GRADD supporting the base function set should return pszFunctionClassID pointing to the string "Base Function."
The following definition is provided:
#define BASE_FUNCTION_CLASS "Base Function"
- ULONG(PVOID) Function class specific flags.
- For the base function class, the following flags are defined:
#define GC_SEND_MEM_TO_MEM 0x00000001 /* Invoke GRADD for bitblts and lines even when hardware display memory is not used. Normally such cases are not sent to a GRADD since the hardware is unlikely to provide acceleration for system memory bitmaps. */ #define TEXTBLT_DOWNLOADABLE 0x00002000 /* Downloadable fonts supported. */ #define TEXTBLT_CLIPABLE 0x00004000 /* Clipable fonts. */ #define TEXTBLT_DS_DEVICE_FONTS 0x00008000 /* Device supports hardware fonts. */ #define DS_SIMPLE_LINES 0x00800000 /* GRADD handles LINEINFO2. */
CHAININFO
Information returned to callers of the #VMI_CMD_QUERYCHAININFO function.
typedef struct _CHAININFO { CID cid; /* GRADD chain ID. */ PSZ pszChainName; /* GRADD chain name. */ PFNHWENTRY pChainHWEntry; /* Entry point for this chain. */ PGRADDINFO pGraddList; /* List of GRADDs in this chain. */ CHAININFO pNextChainInfo; /* Pointer to next GRADD in this chain. */ } CHAININFO; typedef CHAININFO *PCHAININFO;
- Field
- cid(CID) GRADD chain ID.
- pszChainName(PSZ) GRADD chain name.
- pChainHWEntry(PFNHWENTRY) Entry point for this chain.
- pGraddList(#PGRADDINFO) List of GRADDs in this chain.
- pNextChainInfo(CHAININFO) Pointer to next GRADD in this chain.
CLUTDATA
The CLUTDATA data structure receives information for the number of #RGB array entries.
typedef struct _CLUTDATA { ULONG ulRGBCount; /* Number of aRGB entries that follow. */ ULONG ulRGBStart; /* Start index for RGB triplets. */ SVGARGB aRGB[1]; /* Start of SVGARGB; one entry is allocated. */ } CLUTDATA; typedef CLUTDATA *FAR *PCLUTDATA;
- Fields
- ulRGBCount(ULONG) Number of aRGB entries that follow.
- ulRGBStart(ULONG) Start index for #RGB triplets.
- aRGB[1](SVGARGB) Start of #SVGARGB; one entry is allocated.
CODECINFO
Determines whether data is to be compressed or decompressed.
typedef struct _CODECINFO { ULONG ulLength; /* Size of the CODECINFO data structure, in bytes. */ FOURCC fccCodecType; /* Describes compression type; 'RAW' if uncompressed. */ ULONG ulCodecCaps; /* Flag indicating CODEC capabilities. */ } CODECINFO;
- C Declaration Method
- typedef CODECINFO *PCODECINFO;
- Fields
- ulLength(ULONG) Size of the CODECINFO data structure, in bytes.
- fccCodecType(FOURCC) Describes compression type; 'RAW' if uncompressed.
- The FOURCC flags have the following values:
- CODEC_ULTIMOTION "ULTI"
- CODEC_INDEO21 "RT21"
- CODEC_INDEO31 "IV31"
- CODEC_MPEG1 "MPG1"
- CODEC_MPEG2 "MPG2"
- CODEC_MJPEG "MJPG"
- The FOURCC flags have the following values:
- ulCodecCaps(ULONG) Flag indicating CODEC capabilities.
- The following values are valid:
- CODEC_ACCEL_STRETCHBLT 0x0002; hardware stretch
- CODEC_ACCEL_BLTCOPROC 0x0002; hardware Blt
- CODEC_ACCEL_DECOMP 0x0004; has hardware decompression
- CODEC_ACCEL_COMP 0x0008; has hardware compression
- The following values are valid:
COLORINFO
Color formats for source and destination data, organized in order of preference from the driver's perspective. This data structure is required in any driver supporting EnDIVE.
typedef struct _COLORINFO { ULONG ulLength; /* Size of the COLORINFO data structure, in bytes. */ FOURCC fccColorEncoding; /* Field containing a name for the color space. */ } COLORINFO; typedef COLORINFO *PCOLORINFO;
- Fields
- ulLength(ULONG) Size of the COLORINFO data structure, in bytes.
- fccColorEncoding(FOURCC) Field containing a name for the color space.
- The FOURCC represents a name (for example, RGB8, Y24, and so on). The bits per pixel and data layout of the color space is implied by the name.
- This field can have the following values:
- FOURCC(ch0,ch1,ch2,ch3)
((ULONG)(BYTE)(ch0) | ((ULONG)(BYTE)(ch1) <<8) | \ ((ULONG)(BYTE)(CH2)<<16) | ((ULONG)(BYTE)(CH3)<<24))
- FOURCC_LUT8 FOURCC('L','U','T','8') 8-bit palettized color space
- FOURCC_R565 FOURCC('R','5','6','5') RGB 565
- FOURCC_R555 FOURCC('R','5','5','5') RGB 555
- FOURCC_R666 FOURCC('R','6','6','6') RGB 666
- FOURCC_R664 FOURCC('R','6','6','4') RGB 664
- FOURCC_RGB3 FOURCC('R','G','B','3') RGB 24 in 3 bytes
- FOURCC_BGR3 FOURCC('B','G','R','3') BGR 24 in 3 bytes
- FOURCC_RGB4 FOURCC('R','G','B','4') RGB 24 in 4 bytes
- FOURCC_BGR4 FOURCC('B','G','R','4') BGR 24 in 4 bytes
- FOURCC_Y888 FOURCC('Y','8','8','8') YUV 24
- FOURCC_Y411 FOURCC('Y','4','1','1') YUV 411 interleaved 4 x 1 subsampled
- FOURCC_Y422 FOURCC('Y','4','2','2') YUV 422 (CCIR601)
- FOURCC_YUV9 FOURCC('Y','U','V','9') YUV9
- FOURCC_Y2X2 FOURCC('Y','2','X','2') YUV 2 by 2 subsampled multiplane
- FOURCC_Y4X4 FOURCC('Y','4','X','4') YUV 4 by 4 subsampled multiplane
CUSTPALINFO
Custom palette information.
typedef struct _CUSTPALINFO { ULONG ulLength; /* Size of the CUSTPALINFO data structure, in bytes. */ ULONG fFlags; /* Palette flag. */ ULONG ulStartIndex; /* Starting palette index. */ ULONG ulNumEntries; /* Number of palette slots to query or set. */ PRGB2 pRGBs; /* Pointer to the array of RGB values. */ } CUSTPALINFO; typedef CUSTPALINFO *PCUSTPALINFO;
- Fields
- ulLength(ULONG) Size of the CUSTPALINFO data structure, in bytes.
- fFlags(ULONG) Palette flag.
- Not used at this time.
- ulStartIndex(ULONG) Starting palette index.
- ulNumEntries(ULONG) Number of palette slots to query or set.
- pRGBs(#PRGB2) Pointer to the array of RGB values.
DRIVERCAPS
Information structure used for #GreEscape DEVESC_QUERYDRIVERCAPSLIST, #VMI_CMD_USERCAPS, #GHI_CMD_USERCAPS, and #GreEscape DEVESC_QUERYDRIVERCAPS functions.
typedef struct _DRIVERCAPS { ULONG ulCb; /* Length of the source structure in bytes. */ CHAR szCapsDesc[256]; /* Capability description. */ CHAR szHelpFileName[256]; /* Help file name. */ ULONG ulHelpId; /* Help resource id. */ ULONG ulCapsType; /* Defines the returned data type. */ ULONG ulValueMemberSize; /* Size of each member. */ ULONG ulNumValueMember; /* Number of members if aggregate. */ PVOID pValueList; /* Pointer to storage for the members data. */ PVOID pCurrentValue; /* Pointer to the current selected value descriptions. */ PVOID pDefaultValue; /* Pointer to the default (reset) value information. */ BOOL bDefaultValueSupported; /* Return TRUE if driver supports default. */ BOOL bStaticCaps; /* Return TRUE if need to reboot for the new capability. */ } DRIVERCAPS; typedef DRIVERCAPS *PDRIVERCAPS;
- Fields
- ulCb(ULONG) Length of the source structure in bytes.
- szCapsDesc[256](CHAR) Capability description.
- szHelpFileName[256](CHAR) Help file name.
- ulHelpId(ULONG) Help resource id.
- ulCapsType(ULONG) Defines the returned data type.
- This field defines the datatype returned in pValueList, pCurrentValue, and pDefaultValue.
- There are three data types currently supported, specified by the ulCapsType field: boolean, aggregate of int values, and aggregate of strings. These data types can be defined as follows:
- #define CAPSTYPE_BOOLEAN 1L
#define CAPSTYPE_AGGREGATE_INT 2L
#define CAPSTYPE_AGGREGATE_STRING 3L- Note
- When ulCapsType is CAPSTYPE_BOOLEAN, the driver does not have to fill in pValueList.
- ulValueMemberSize(ULONG) Size of each member.
- ulNumValueMember(ULONG) Number of members if aggregate.
- pValueList(PVOID) Pointer to storage for the members data.
- pCurrentValue(PVOID) Pointer to the current selected value descriptions.
- pDefaultValue(PVOID) Pointer to the default (reset) value information.
- bDefaultValueSupported(BOOL) Return TRUE if driver supports default.
- bStaticCaps(BOOL) Return TRUE if need to reboot for the new capability.
DEVFONTINFO
Information structure used for #GHI_CMD_TEXT and #VMI_CMD_TEXT functions. The #TEXTBLTINFO structure includes a pointer to DEVFONTINFO.
typedef struct _DEVFONTINFO { ULONG ulFntCnt; /* Maximum glyphs contained in this font. */ ULONG fFontInfo; /* Flags used to define DBCS or fixed font. */ ULONG ulEngTag; /* Renderer tag. */ ULONG ulUniqueFntID; /* Unique font identifier. */ ULONG ulMaxHeight; /* Maximum glyph height. */ ULONG ulMaxWidth; /* Maximum glyph width. */ PGHBTBL pghbTbl; /* Pointer to high byte table. */ ULONG ulHalfWidth; /* Reserved. */ CHAR szGlyphlist[16]; /* Reserved */ ULONG ulReserved1; /* Reserved. */ ULONG ulReserved2; /* Reserved. */ } DEVFONTINFO; typedef DEVFONTINFO *PDEVFONTINFO;
- Fields
- ulFntCnt(ULONG) Maximum glyphs contained in this font.
- fFontInfo(ULONG) Flags used to define DBCS or fixed font.
DFI_FIXED_FONT A predefined number, such as the following:
#define DFI_FIXED_FONT 0x00000001
DFI_DBCS_FONT A predefined number, such as the following:
#define DFI_DBCS_FONT 0x00000002
- ulEngTag(ULONG) Renderer tag.
GRETAG A predefined string, such as the following:
#define GRETAG ('G'+('R'<<8)+('E'<<16)+('_'<<24)) //"GRE_"
WINTAG A predefined string, such as the following:
#define WINTAG ('W'+('I'<<8)+('N'&<<16)+('_'<<24)) //"WIN_"
- ulUniqueFntID(ULONG) Unique font identifier.
- ulMaxHeight(ULONG) Maximum glyph height.
- ulMaxWidth(ULONG) Maximum glyph width.
- pghbTbl(#PGHBTBL) Pointer to high byte table.
- ulHalfWidth(ULONG) Reserved.
- szGlyphlist[16](CHAR) Reserved
- ulReserved1(ULONG) Reserved.
- ulReserved2(ULONG) Reserved.
FBINFO
Information on frame buffer characteristics.
typedef struct _FBINFO { ULONG ulLength; /* Length of FBINFO data structure, in bytes. */ ULONG ulFlags; /* Specifies the capabilities supported. */ ULONG ulBPP; /* Screen bits per pel. */ ULONG ulXres; /* Number of screen X pels. */ ULONG ulYres; /* Number of screen Y pels. */ ULONG ulScanLineBytes; /* Number of bytes per scanline. */ ULONG fccColorEncoding; /* Screen color encoding. */ ULONG ulENDIVEDrivers; /* Number of EnDIVE drivers installed under GRADD architecture. */ } FBINFO;
- C Declaration Method
- typedef FBINFO *PFBINFO;
- Fields
- ulLength(ULONG) Length of FBINFO data structure, in bytes.
- ulFlags(ULONG) Specifies the capabilities supported.
- This flag has the following value:
- FB_SUPPORTSVRAMALLOC 0x0010; supports allocation of on-card memory
- This flag has the following value:
- ulBPP(ULONG) Screen bits per pel.
- This value may be 32 for some 24-bit color adapters.
- ulXres(ULONG) Number of screen X pels.
- ulYres(ULONG) Number of screen Y pels.
- ulScanLineBytes(ULONG) Number of bytes per scanline.
- fccColorEncoding(ULONG) Screen color encoding.
- ulENDIVEDrivers(ULONG) Number of EnDIVE drivers installed under GRADD architecture.
FONTDATA
The FONTDATA data structure contains font and character information.
typedef struct _FONTDATA { ULONG ulCharCount; /* Number of characters in the font. */ ULONG ulFontHeight; /* Number of scan lines per character. */ ULONG ulFontWidth; /* Number of columns per character. */ BYTE bFontData[1]; /* ulCharCount*ulFontHeight entries. */ } FONTDATA; typedef FONTDATA *FAR *PFONTDATA;
- Fields
- ulCharCount(ULONG) Number of characters in the font.
- ulFontHeight(ULONG) Number of scan lines per character.
- ulFontWidth(ULONG) Number of columns per character.
- bFontData[1](BYTE) ulCharCount*ulFontHeight entries.
GDDINITIN
Information provided to the GRADD in the GHI_CMD_INIT function.
typedef struct _GDDINITIN { ULONG ulLength; /* Length of the GDDINITIN data structure, in bytes. */ PFNHWENTRY pfnChainedHWEntry; /* Entry of previous GRADD in chain. */ } GDDINITIN; typedef GDDINITIN *PGDDINITIN ;
- Fields
- ulLength(ULONG) Length of the GDDINITIN data structure, in bytes.
- pfnChainedHWEntry(PFNHWENTRY) Entry of previous GRADD in chain.
GDDINITOUT
Information returned by the GRADD to the caller of the GHI_CMD_INIT function.
typedef struct _GDDINITOUT { ULONG ulLength; /* Length of the GDDINITOUT data structure, in bytes. */ ULONG cFunctionClasses; /* Number of function classes supported. */ } GDDINITOUT; typedef GDDINITOUT *PGDDINITOUT;
- Fields
- ulLength(ULONG) Length of the GDDINITOUT data structure, in bytes.
- cFunctionClasses(ULONG) Number of function classes supported.
In most cases, this value will be equal to one (1). A GRADD can, however, return a zero (0). This is typically done by filter GRADDs that do not want to be entered in the CHAININFO/GRADDINFO information returned to the translation layer via the VMI_CMD_QUERYCHAININFO function. A GRADD can include built-in extensions by returning a value greater than one (1).
GDDMODEINFO
Mode-specific information provided by the GRADD.
typedef struct _GDDMODEINFO { ULONG ulLength; /* Size of the GDDMODEINFO data structure, in bytes. */ ULONG ulModeId; /* ID used to make SETMODE request. */ ULONG ulBpp; /* Number of colors (bpp). */ ULONG ulHorizResolution; /* Number of horizontal pels. */ ULONG ulVertResolution; /* Number of vertical scan lines. */ ULONG ulRefreshRate; /* Refresh rate in Hz. */ PBYTE pbVRAMPhys; /* Physical address of VRAM. */ ULONG ulApertureSize; /* Size of VRAM, in bytes. */ ULONG ulScanLineSize; /* Size of one scan line, in bytes. */ } GDDMODEINFO; typedef GDDMODEINFO *PGDDMODEINFO;
- Fields
- ulLength(ULONG) Size of the GDDMODEINFO data structure, in bytes.
- ulModeId(ULONG) ID used to make SETMODE request.
- ulBpp(ULONG) Number of colors (bpp).
- ulHorizResolution(ULONG) Number of horizontal pels.
- ulVertResolution(ULONG) Number of vertical scan lines.
- ulRefreshRate(ULONG) Refresh rate in Hz.
- This value is zero (0) if Hz not available.
- pbVRAMPhys(PBYTE) Physical address of VRAM.
- ulApertureSize(ULONG) Size of VRAM, in bytes.
- ulScanLineSize(ULONG) Size of one scan line, in bytes.
GHBTBL
Glyph high byte table.
typedef struct _GHBTBL { PGLBTBL pglbTbl[1]; /* Up to 256 entries per table */ } GHBTBL; typedef GHBTBL *PGHBTBL;
- Fields
- pglbTbl[1](#PGLBTBL) Up to 256 entries per table
GLBTBL
Glyph low byte table.
typedef struct _GLBTBL { PGLYPHINFO pGlyphInfo[1]; /* Up to 256 entries per table */ } GLBTBL; typedef GLBTBL *PGLBTBL;
- Field
- pGlyphInfo[1](#PGLYPHINFO) Up to 256 entries per table
GRADDINFO
Information describing an individual GRADD.
typedef struct _GRADDINFO { GID gid; /* ID of the GRADD. */ PSZ pszGraddName; /* Name of this GRADD. */ PFNHWENTRY pGraddEntry; /* Pointer to HWENTRY for this GRADD. */ PFNHWENTRY pChainEntry; /* Pointer to HWENTRY for this GRADD chain. */ ULONG cModes; /* Count of available graphics modes. */ GDDMODEINFO pModeInfo; /* Pointer to GDDMODEINFO data structure. */ CAPSINFO pCapsInfo; /* Pointer to CAPSINFO data structure. */ GRADDINFO pNextGraddInfo; /* Pointer to next GRADDINFO data structure. */ } GRADDINFO; typedef GRADDINFO *PGRADDINFO;
- Fields
- gid(GID) ID of the GRADD.
- pszGraddName(PSZ) Name of this GRADD.
- pGraddEntry(PFNHWENTRY) Pointer to HWENTRY for this GRADD.
- pChainEntry(PFNHWENTRY) Pointer to HWENTRY for this GRADD chain.
- cModes(ULONG) Count of available graphics modes.
- This is the count of the available graphics modes supported by this GRADD.
- pModeInfo(#GDDMODEINFO) Pointer to GDDMODEINFO data structure.
- pCapsInfo(#CAPSINFO) Pointer to CAPSINFO data structure.
- pNextGraddInfo(GRADDINFO) Pointer to next GRADDINFO data structure.
This points to the next data structure in this GRADD chain.
GLYPHINFO
Information structure referenced by the pointer to glyph indices (pGlyphIndicies) in the #TEXTBLTINFO structure.
typedef struct _GLYPHINFO { CHAR bAspace; /* Reserved */ CHAR bBspace; /* Reserved */ CHAR bCspace; /* Reserved */ CHAR bPad; /* Reserved */ BMAPINFO bmapinfo; /* Destination physical surface descriptions */ } GLYPHINFO; typedef GLYPHINFO *PGLYPHINFO;
- Fields
- bAspace(CHAR) Reserved
- bBspace(CHAR) Reserved
- bCspace(CHAR) Reserved
- bPad(CHAR) Reserved
- bmapinfo(#BMAPINFO) Destination physical surface descriptions
HWBANKIN
Information structure used for #GHI_CMD_TEXT and #VMI_CMD_TEXT functions.
typedef struct _HWBANKIN { ULONG ulLength; /* Length of the HWBANKIN data structure, in bytes. */ ULONG ulFlags; /* Defines for ulFlags. */ ULONG ulBank; /* Bank number. */ } HWBANKIN; typedef HWBANKIN *PHWBANKIN;
- Fields
- ulLength(ULONG) Length of the HWBANKIN data structure, in bytes.
- ulFlags(ULONG) Defines for ulFlags.
- BANK_SET 1
- BANK_GET 2
- ulBank(ULONG) Bank number.
HWBANKOUT
Information structure used for #GHI_CMD_TEXT and #VMI_CMD_TEXT functions.
typedef struct _HWBANKOUT { ULONG ulLength; /* Length of the HWBANKOUT data structure, in bytes. */ ULONG ulBank; /* Bank number. */ } HWBANKOUT; typedef HWBANKOUT *PHWBANKOUT;
- Fields
- ulLength(ULONG) Length of the HWBANKOUT data structure, in bytes.
- ulBank(ULONG) Bank number.
HWEVENTIN
Input data to the #GHI_CMD_EVENT function.
typedef struct _HWEVENTIN { ULONG ulLength; /* Size of the HWEVENTIN data structure, in bytes. */ ULONG ulEvent; /* Flag indicating type of event. */ ULONG pEventData; /* Pointer to event-specific data. */ } HWEVENTIN; typedef HWEVENTIN *PHWEVENTIN;
- Fields
- ulLength(ULONG) Size of the HWEVENTIN data structure, in bytes.
- ulEvent(ULONG) Flag indicating type of event.
- Valid values are:
- EVENT_BACKGROUND
- EVENT_FOREGROUND
- EVENT_NEWCHAININFO
- Valid values are:
- pEventData(ULONG) Pointer to event-specific data.
HWEXTENSION
Input data to the #GHI_CMD_EXTENSION function.
typedef struct _HWEXTENSION { ULONG ulLength; /* Size of the HWEXTENSION data structure, in bytes. */ ULONG ulXSubFunction; /* Subfunction code. */ ULONG cScrChangeRects; /* Count of screen rectangles affected by HWEXTENSION. */ PRECTL arectlScreen; /* Array of screen rectangles affected by HWEXTENSION. */ ULONG ulXFlags; /* Flag indicating hardware serialization. */ PVOID pXP1; /* Extension-specific input packet. */ } HWEXTENSION; typedef HWEXTENSION *PHWEXTENSION;
- Fields
- ulLength(ULONG) Size of the HWEXTENSION data structure, in bytes.
- ulXSubFunction(ULONG) Subfunction code.
- cScrChangeRects(ULONG) Count of screen rectangles affected by HWEXTENSION.
- arectlScreen(#PRECTL) Array of screen rectangles affected by HWEXTENSION.
- ulXFlags(ULONG) Flag indicating hardware serialization.
- Value for this flag is as follows: X_REQUESTHW 1
- pXP1(PVOID) Extension-specific input packet.
HWMOVEPTRIN
Input packet provided to the GRADD in the GHI_CMD_MOVEPTR function.
typedef struct _HWMOVEPTRIN { ULONG ulLength; /* Size of the HWMOVEPTRIN data structure, in bytes. */ POINTL ptlPos; /* Pointer to video screen coordinate of pointer hot spot. */ } HWMOVEPTRIN; typedef HWMOVEPTRIN *PHWMOVEPTRIN;
- Fields
- ulLength(ULONG) Size of the HWMOVEPTRIN data structure, in bytes.
- ptlPos(#POINTL) Pointer to video screen coordinate of pointer hot spot.
- Video screen coordinates are expected in the ptlPosfield.
HWPALETTEINFO
Input packet provided to the GRADD in the #GHI_CMD_PALETTE function.
typedef struct _HWPALETTEINFO { ULONG ulLength; /* Size of the HWPALETTEINFO data structure, in bytes. */ ULONG fFlags; /* Palette flag. */ ULONG ulStartIndex; /* Starting palette index. */ ULONG ulNumEntries; /* Number of palette slots to query or set. */ PRGB2 pRGBs; /* Pointer to the array of RGB values. */ } HWPALETTEINFO; typedef HWPALETTEINFO *PHWPALETTEINFO;
- Fields
- ulLength(ULONG) Size of the HWPALETTEINFO data structure, in bytes.
- fFlags(ULONG) Palette flag.
- These flags have the following values:
- PALETTE_GET 0x0001
PALETTE_SET 0x0002
- ulStartIndex(ULONG) Starting palette index.
- ulNumEntries(ULONG) Number of palette slots to query or set.
- pRGBs(#PRGB2) Pointer to the array of #RGB values.
HWREQIN
Input packet to the #GHI_CMD_REQUESTHW function.
typedef struct _HWREQIN { ULONG ulLength; /* Size of the HWREQIN data structure, in bytes. */ ULONG ulFlags; /* Request option flags. */ ULONG cScrChangeRects; /* Count of screen rectangles affected by HWREQIN. */ PRECTL arectlScreen; /* Array of screen rectangles affected by HWREQIN. */ } HWREQIN; typedef HWREQIN *PHWREQIN;
- Fields
- ulLength(ULONG) Size of the HWREQIN data structure, in bytes.
- ulFlags(ULONG) Request option flags.
- Request option flags can be defined as follows:
- define REQUEST_HW 0x01
#define REQUEST_SEM_ONLY 0x02
- define REQUEST_HW 0x01
- If the REQUEST_HW flag is set, the VMAN hardware serialization lock is obtained, and pointer exclusion is performed.
- If the REQUEST_HW flag is set and the REQUEST_SEM_ONLY flag is not set, VMAN invokes the GRADD for GHI_CMD_REQUESTHW to request the linear aperture to the frame buffer.
- If the REQUEST_HW flag is set and the REQUEST_SEM_ONLY flag is set, VMAN does not invoke the GRADD for GHI_CMD_REQUESTHW.
- If the REQUEST_HW flag is not set, the VMAN hardware serialization lock is released, and pointer exclusion is ended.
- If the REQUEST_HW flag is not set and the REQUEST_SEM_ONLY flag is not set, VMAN invokes the GRADD for GHI_CMD_REQUESTHW to release the linear aperture to the frame buffer.
- If the REQUEST_HW flag is not set and the REQUEST_SEM_ONLY flag is set, VMAN does not invoke the GRADD for GHI_CMD_REQUESTHW.
- Request option flags can be defined as follows:
- cScrChangeRects(ULONG) Count of screen rectangles affected by HWREQIN.
- arectlScreen(#PRECTL) Array of screen rectangles affected by HWREQIN.
HWSETPTRIN
Input packet to the GHI_CMD_SETPTR function.
typedef struct _HWSETPTRIN { ULONG ulLength; /* Size of the HWSETPTRIN data structure, in bytes. */ PBYTE pbANDMask; /* Pointer to AND bit-mask pointer. */ PBYTE pbXORMask; /* Pointer to XOR bit-mask pointer. */ PBYTE pbBits; /* Pointer to color pointer image. */ ULONG ulBpp; /* Color pointer bits per pel. */ ULONG ulWidth; /* Pointer width in pels. */ ULONG ulHeight; /* Pointer height in pels. */ POINTL ptlHotspot; /* Pointer to hot spot coordinate. */ } HWSETPTRIN; typedef HWSETPTRIN *PHWSETPTRIN;
- Fields
- ulLength(ULONG) Size of the HWSETPTRIN data structure, in bytes.
- pbANDMask(PBYTE) Pointer to AND bit-mask pointer.
- pbXORMask(PBYTE) Pointer to XOR bit-mask pointer.
- pbBits(PBYTE) Pointer to color pointer image.
- ulBpp(ULONG) Color pointer bits per pel.
- ulWidth(ULONG) Pointer width in pels.
- ulHeight(ULONG) Pointer height in pels.
- ptlHotspot(#POINTL) Pointer to hot spot coordinate.
HWSETPTROUT
Output packet returned by the GRADD to the caller of the GHI_CMD_SETPTR function.
typedef struct _HWSETPTROUT { ULONG ulLength; /* Size of the HWSETPTROUT data structure, in bytes. */ ULONG ulStatus; /* Current cursor description bits. */ } HWSETPTROUT; typedef HWSETPTROUT *PHWSETPTROUT;
- Fields
- ulLength(ULONG) Size of the HWSETPTROUT data structure, in bytes.
- ulStatus(ULONG) Current cursor description bits.
- Values are as follows:
- POINTER_VISIBLE 0x0001; cursor is visible.
- POINTER_COLOR 0x0002; cursor is color (vs. monochrome).
- POINTER_SOFTWARE 0x0004; this GRADD is not using a hardware sprite.
HWSHOWPTRIN
Input packet to the GHI_CMD_SHOWPTR function.
typedef struct _HWSHOWPTRIN { ULONG ulLength; /* Size of the HWSHOWPTRIN data structure, in bytes. */ BOOL fShow; /* Indicates the visibility state of the pointer. */ } HWSHOWPTRIN; typedef HWSHOWPTRIN *PHWSHOWPTRIN;
- Fields
- ulLength(ULONG) Size of the HWSHOWPTRIN data structure, in bytes.
- fShow(BOOL) Indicates the visibility state of the pointer.
- Values are as follows:
- TRUE Pointer is visible.
- FALSE Pointer is not visible.
- Values are as follows:
IMAGEBUF
Characteristics describing an image.
typedef struct _IMAGEBUF { ULONG ulLength; /* Length of IMAGEBUF data structure, in bytes. */ ULONG ulFlags; /* Image buf flag. */ ULONG ulType; /* Flag indicating type of memory: VRAM or system. */ PBYTE pBits; /* Virtual address of the image. */ ULONG ulImgWidth; /* Image width, in pels. */ ULONG ulImgHeight; /* Image height, in pels. */ ULONG ulBytesPerScan; /* Bytes per scan line. */ PCOLORINFO pColorInfo; /* Color space of data in buffer. */ PCODECINFO pCodecInfo; /* Compression type of data in buffer. */ PCUSTPALINFO pCustPalInfo; /* Pointer to custom palette information. */ } IMAGEBUF; typedef IMAGEBUF *PIMAGEBUF;
- Fields
- ulLength(ULONG) Length of IMAGEBUF data structure, in bytes.
- ulFlags(ULONG) Image buf flag.
- This flag has the following values:
- IBF_Y_ORG_BOTTOM 0x0001; origin is set at bottom
- Note
- This flag can be used as an optimization for 8-bpp images for the following two conditions:
- The hardware has support for cached custom palettes, and the client application is playing frames using the same palette. The driver will return IMG_CAPS_PAL_CACHING if it has this support.
- The screen is in 256-color mode and the source image bits have already been translated to the current hardware palette.
IBF_IGNORE_CUST_PAL 0x0002; ignore the custom palette
- ulType(ULONG) Flag indicating type of memory: VRAM or system.
- This flag has the following values:
- IBT_SRC_VRAM 0x0000; indicates source is VRAM memory
IBT_SRC_MEM 0x0001; indicates source is system memory
- pBits(PBYTE) Virtual address of the image.
- Not required if source is in VRAM.
- ulImgWidth(ULONG) Image width, in pels.
- ulImgHeight(ULONG) Image height, in pels.
- ulBytesPerScan(ULONG) Bytes per scan line.
- pColorInfo(#PCOLORINFO) Color space of data in buffer.
- pCodecInfo(#PCODECINFO) Compression type of data in buffer.
- pCustPalInfo(#PCUSTPALINFO) Pointer to custom palette information.
IMAGECAPS
Capabilities of the video accelerator driver.
typedef struct _IMAGECAPS { ULONG ulLength; /* Length of IMAGECAPS data structure, in bytes. */ ULONG ulCaps; /* Flag that specifies image capabilities supported. */ ULONG ulMaxHorz; /* Maximum horizontal pels supported by scaler. */ ULONG ulMaxVert; /* Maximum vertical lines supported by scaler. */ BOOL fAccelMem; /* Flag indicating whether the hardware accelerator has additional VRAM for use. */ ULONG ulPhysAddrVRAM; /* Physical address of the hardware accelerator VRAM. */ ULONG ulSize; /* Size of hardware accelerator VRAM, in bytes. */ ULONG ulScanLineBytes; /* Size of scan line, in bytes. */ ULONG ulNumCodecs; /* Number of FOURCCs that follow in this structure. */ PCODECINFO pCodecList; /* Pointer to array of CODEC FOURCCs. */ ULONG ulNumSrc; /* Number of source COLORINFO data structures pointed to by pSrcColorInfo. */ PCOLORINFO pSrcColorInfo; /* Pointer to array of source COLORINFO data structures. */ ULONG ulNumDst; /* Number of destination COLORINFO data structures pointed to by pDstColorInfo. */ PCOLORINFO pDstColorInfo; /* Pointer to array of destination COLORINFO data structures. */ } IMAGECAPS; typedef IMAGECAPS *PIMAGECAPS;
- Fields
- ulLength(ULONG) Length of IMAGECAPS data structure, in bytes.
- ulCaps(ULONG) Flag that specifies image capabilities supported.
This flag has the following values:
IMAGECAPS_STRETCHBLT 0x0001; has hardware stretch Blt assist
IMAGECAPS_CAPTURE 0x0002; has capture to VRAM hardware present
IMAGECAPS_1X_BLT 0x0004; has nonstretch Blt assist
IMAGECAPS_WINDOWCLIP 0x0008; supports clipping in hardware and/or software
IMAGECAPS_BUFALLOC 0x0010; supports allocation of on-card memory
IMAGECAPS_RECTALLOC 0x0020; supports allocation of rectangles in on-card memory
IMAGECAPS_COMP 0x0040; compression supported by driver
IMAGECAPS_DECOMP 0x0080; decompression supported by driver
IMAGECAPS_PAL_CACHING 0x0100; supports 8-bit palette caching
IMAGECAPS_INTERPOL 0x0200; supports color interpolation in hardware
IMAGECAPS_BYLOCSYSMEM 0x0400; able to read/write to system memory
IMIAGECAPS_SEM_BYPASS 0x0800; device serialization not required
IMAGECAPS_NO_SHARED_FB 0x1000; overlay device
- ulMaxHorz(ULONG) Maximum horizontal pels supported by scaler.
- ulMaxVert(ULONG) Maximum vertical lines supported by scaler.
- fAccelMem(BOOL) Flag indicating whether the hardware accelerator has additional VRAM for use.
- The following values are valid:
- TRUE VRAM available.
FALSE VRAM not available.
- ulPhysAddrVRAM(ULONG) Physical address of the hardware accelerator VRAM.
- This parameter is valid only if fAccelMem = TRUE.
- ulSize(ULONG) Size of hardware accelerator VRAM, in bytes.
- This parameter is valid only if fAccelMem = TRUE.
- ulScanLineBytes(ULONG) Size of scan line, in bytes.
- Number of bytes includes padding. This parameter is valid only if fAccelMem = TRUE.
- ulNumCodecs(ULONG) Number of FOURCCs that follow in this structure.
- pCodecList(#PCODECINFO) Pointer to array of CODEC FOURCCs.
- This field points to the array of FOURCCs supported by the hardware accelerator.
- ulNumSrc(ULONG) Number of source #COLORINFO data structures pointed to by pSrcColorInfo.
- pSrcColorInfo(#PCOLORINFO) Pointer to array of source COLORINFO data structures.
- ulNumDst(ULONG) Number of destination COLORINFO data structures pointed to by pDstColorInfo.
- pDstColorInfo(#PCOLORINFO) Pointer to array of destination COLORINFO data structures.
IMAGEPACK
Information pertaining to PutImage and GetImage.
typedef struct _IMAGEPACK { ULONG ulLength; /* Length of IMAGEPACK data structure, in bytes. */ ULONG ulFlags; /* Image pack flag. */ ULONG ulHandle; /* Unique ID returned by VRAMREGISTEROUT. */ ULONG ulID; /* Unique buffer ID. */ ULONG ulCmdMask; /* Specific changes since the last frame. */ PIMAGEBUF pPutBuf; /* Used as source image in PutImage command. */ PIMAGEBUF pGetBuf; /* Used as destination image in GetImage command. */ POINTL ptlDstOrg; /* Destination origin (origin at upper left). */ ULONG ulDstXext; /* Destination X extent. */ ULONG ulDstYext; /* Destination Y extent. */ POINTL ptlSrcOrg; /* Offset into the source image. */ ULONG ulSrcXext; /* Source X extent. */ ULONG ulSrcYext; /* Source Y extent. */ ULONG cVisRects; /* Number of output visible rectangles. */ PRECTL prctlVis; /* Pointer to array of visible regions. */ POINTL ptlWBOrg; /* Origin of off-screen VRAM work buffer. */ ULONG cWBBytes; /* Number of bytes in the work buffer. */ PBYTE pVirtVRAM; /* A 32-bit virtual pointer to the start of VRAM. */ ULONG ulGrafXPar; /* Transparent color for overlay type devices. */ } IMAGEPACK; typedef IMAGEPACK *PIMAGEPACK;
- IMAGEPACK
- ulLength(ULONG) Length of IMAGEPACK data structure, in bytes.
- ulFlags(ULONG) Image pack flag.
- This flag has the following value:
- IPF_DONT_INTERPOLATE 0x0001; don't use hardware color interpolation
- This flag has the following value:
- ulHandle(ULONG) Unique ID returned by #VRAMREGISTEROUT.
- ulID(ULONG) Unique buffer ID.
- ulCmdMask(ULONG) Specific changes since the last frame.
- The following values are valid:
- IPC_INTERMEDIATE_PUT 0x0001; not used at this time
- IPC_RECTLS 0x0002; visible regions have changed
- IPC_SRC_COLOR 0x0004; source color information has changed
- IPC_DST_COLOR 0x0008; destination color information has changed
- IPC_PALETTE 0x0010; palette color information has changed
- IPC_SRC_SIZE 0x0020; source size information has changed
- IPC_DST_SIZE 0x0040; destination size information has changed
- IPC_DST_POS 0x0080; destination position information has changed
- IPC_DROP_FRAME 0x0100; ignore this frame
- The following values are valid:
- pPutBuf(#PIMAGEBUF) Used as source image in PutImage command.
- pGetBuf(PIMAGEBUF) Used as destination image in GetImage command.
- ptlDstOrg(#POINTL) Destination origin (origin at upper left).
- ulDstXext(ULONG) Destination X extent.
- ulDstYext(ULONG) Destination Y extent.
- ptlSrcOrg(#POINTL) Offset into the source image.
- ulSrcXext(ULONG) Source X extent.
- ulSrcYext(ULONG) Source Y extent.
- cVisRects(ULONG) Number of output visible rectangles.
- prctlVis(#PRECTL) Pointer to array of visible regions.
- ptlWBOrg(#POINTL) Origin of off-screen VRAM work buffer.
- cWBBytes(ULONG) Number of bytes in the work buffer.
- pVirtVRAM(PBYTE) A 32-bit virtual pointer to the start of VRAM.
- ulGrafXPar(ULONG) Transparent color for overlay type devices.
INITVDM
Data structure to initialize the full VDM session.
typedef struct _INITVDM { ULONG ulFlags; /* VDM initialization type. */ } INITVDM; typedef INITVDM *PINITVDM;
- Fields
- ulFlags(ULONG) VDM initialization type.
- VDM_POSTLOAD 0x1 Adapter just loaded (used internally for initialization).
- VDM_INITIALIZE 0x2 Force initialization of a permanently open VDM, even if previously initialized.
INTCRF
Data structure to make a bios call.
typedef struct _INTCRF { ULONG ulBIOSIntNo; /* 0x10 for INT10 calls. */ VCRF aCRF; /* Client register frame. */ BUFFER pB[2]; /* Description of input/output buffers. */ } INTCRF; typedef INTCRF *PINTCRF;
- Fields
- ulBIOSIntNo(ULONG) 0x10 for INT10 calls.
- aCRF(#VCRF) Client register frame.
- pB[2](#BUFFER) Description of input/output buffers.
INITPROCOUT
Information returned by the GRADD to the caller of the GHI_CMD_INITPROC function.
typedef struct _INITPROCOUT { ULONG ulLength; /* Length of the INITPROCOUT data structure, in bytes. */ ULONG ulVRAMVirt; /* 32-bit virtual address of VRAM. */ } INITPROCOUT; typedef INITPROCOUT *PINITPROCOUT;
- Fields
- ulLength(ULONG) Length of the INITPROCOUT data structure, in bytes.
- ulVRAMVirt(ULONG) 32-bit virtual address of VRAM.
LINEINFO
Line information data structure shared by cLines in the alpkLinePack array.
typedef struct _LINEINFO { ULONG ulLength; /* Length of LINEINFO data structure. */ ULONG ulType; /* Defines line type. */ ULONG ulStyleMask; /* A 32-bit style mask. */ ULONG cLines; /* Count of lines to be drawn. */ ULONG ulFGColor; /* Line Foreground color. */ ULONG ulBGColor; /* Line Background color. */ USHORT usForeROP; /* Line Foreground mix. */ USHORT usBackROP; /* Line Background mix. */ PBMAPINFO pDstBmapInfo; /* Pointer to destination surface bit map. */ PLINEPACK alpkLinePack; /* Pointer to LINEPACK data structure. */ PRECTL prclBounds; /* Pointer to bounding rect of a clipped line. */ } LINEINFO; typedef LINEINFO *PLINEINFO;
- Field
- ulLength(ULONG) Length of LINEINFO data structure.
- ulType(ULONG) Defines line type.
- LINE_SOLID Line will be solid in Foreground color.
- LINE_INVISIBLE Line is not drawn.
- LINE_ALTERNATE Line will be alternating Foreground and Background color; ignores style.
- ulStyleMask(ULONG) A 32-bit style mask.
- cLines(ULONG) Count of lines to be drawn.
- ulFGColor(ULONG) Line Foreground color.
- ulBGColor(ULONG) Line Background color.
- usForeROP(USHORT) Line Foreground mix.
- usBackROP(USHORT) Line Background mix.
- The following flags apply to ulForeROP and ulBackROP:
LR_ZERO
LR_INVERTMERGEPAT
LR_MASKINVERTPAT
LR_INVERTCOPYPAT
LR_MASKPATINVERT
LR_INVERT
LR_XORPAT
LR_INVERTMASKPAT
LR_MASKPAT
LR_INVERTXORPAT
LR_LEAVEALONE
LR_MERGEINVERTPAT
LR_PATCOPY
LR_MERGEPATINVERT
LR_MERGEPAT
LR_ONE
- The following flags apply to ulForeROP and ulBackROP:
- pDstBmapInfo(#PBMAPINFO) Pointer to destination surface bit map.
- alpkLinePack(PLINEPACK) Pointer to #LINEPACK data structure.
- prclBounds(#PRECTL) Pointer to bounding rect of a clipped line.
LINEINFO2
Line information data structure for simple lines, used for #VMI_CMD_LINE and #GHI_CMD_LINE functions.
The LINEINFO2 structure will never be passed to a GRADD unless the GRADD indicates it can handle both LINEINFO and LINEINFO2 structures by setting the DS_SIMPLE_LINES flag in the ulFCFlags member of #CAPSINFO.
typedef struct _LINEINFO2 { ULONG ulLength; /* Length of LINEINFO2 data structure. */ ULONG ulType; /* Defines line type. */ ULONG ulStyleMask; /* A 32-bit style mask. */ ULONG cLines; /* Count of lines to be drawn. */ ULONG ulFGColor; /* Line Foreground color. */ ULONG ulBGColor; /* Line Background color. */ USHORT usForeROP; /* Line Foreground mix. */ USHORT usBackROP; /* Line Background mix. */ PBMAPINFO pDstBmapInfo; /* Pointer to destination surface bit map. */ ULONG ulFlags; /* Line flags. */ ULONG ulXYStyleStep; /* Low byte of low word: x style, High byte of low word: y style. */ PULONG pulStyleValue; /* Pointer to style value at start point. */ POINTL ptlOrigin; /* Origin to be added to all coordinates. */ PPOINTL pptlStart; /* Pointer to POINTL defining start point. */ PPOINTL pptlLines; /* Pointer to POINTL array defining connected line endpoints. */ POINTL ptlClipStart; /* Clipped start point if it is clipped. */ POINTL ptlClipEnd; /* Clipped end point if it is clipped. */ LONG lClipStartError; /* Bresenham error at the clip start for first line. */ PRECTL prclBounds; /* Pointer to bounding rect of clipped lines. */ } LINEINFO2; typedef LINEINFO2 *PLINEINFO2;
- Fields
- ulLength(ULONG) Length of LINEINFO2 data structure.
- ulType(ULONG) Defines line type.
- LINE_SOLID Line will be solid in Foreground color.
LINE_INVISIBLE Line is not drawn.
LINE_ALTERNATE Line will be alternating Foreground and Background color; ignores style.
- LINE_SOLID Line will be solid in Foreground color.
- ulStyleMask(ULONG) A 32-bit style mask.
- cLines(ULONG) Count of lines to be drawn.
- ulFGColor(ULONG) Line Foreground color.
- ulBGColor(ULONG) Line Background color.
- usForeROP(USHORT) Line Foreground mix.
- usBackROP(USHORT) Line Background mix.
- The following flags apply to ulForeROP and ulBackROP:
- LR_ZERO
- LR_INVERTMERGEPAT
- LR_MASKINVERTPAT
- LR_INVERTCOPYPAT
- LR_MASKPATINVERT
- LR_INVERT
- LR_XORPAT
- LR_INVERTMASKPAT
- LR_MASKPAT
- LR_INVERTXORPAT
- LR_LEAVEALONE
- LR_MERGEINVERTPAT
- LR_PATCOPY
- LR_MERGEPATINVERT
- LR_MERGEPAT
- LR_ONE
- pDstBmapInfo(#PBMAPINFO) Pointer to destination surface bit map.
- ulFlags(ULONG) Flags used for the LINEINFO2 data structure.
LINE_DO_FIRST_PEL Draw first pel of first line if not clipped.
LINE_DO_LAST_PEL Draw last pel of last line if not clipped.
LINE_MONO_INVERT Invert bits for mono destination.
LINE_START_CLIP Start of first line is clipped.
LINE_END_CLIP End of last line is clipped.
LINE_Y_FLIP Flip Y for all lines.
LINE_ALL_RADIAL All lines oriented 0, 45, 90, 135, 180, 225, 270, or 315 degrees.
LINE_DISJOINT Successive pairs of points in pptlLines array define disconnected line segments.
- Field - ulXYStyleStep
ulXYStyleStep(ULONG) Low byte of low word: x style, High byte of low word: y style.
The x style step is used for X-major lines where abs(dx) > abs(dy). The x style step is used for lines where abs(dx) < abs(dy).
The style step is added to the current style value for each pel.
- Field - pulStyleValue
pulStyleValue(PULONG) Pointer to style value at current pel.
The style value is composed as an error value and a mask position, as follows:
high word (16 bits) | 3 bits | 5 bits | 8 bits |
not used | not used | mask position | error value |
The style value is updated as lines are drawn.
- Fields
- ptlOrigin(#POINTL) Origin to be added to all coordinates.
- pptlStart(PPOINTL) Pointer to #POINTL defining start point of first line.
- pptlLines(PPOINTL) Pointer to #POINTLarray defining connected line endpoints.
- The number of array entries is defined by #cLines.
- ptlClipStart(#POINTL) Clipped start point if it is clipped.
- ptlClipEnd(POINTL) Clipped end point if it is clipped.
- lClipStartError(LONG) Bresenham error at the clip start point for first line (not valid if first line is horizontal or vertical).
- prclBounds(#PRECTL) Pointer to bounding rect of a clipped line.
LINEPACK
Line information data structure on a per-line basis.
typedef struct _LINEPACK { ULONG ulStyleStep; /* Value to be added to ulStyleValue. */ ULONG ulStyleValue; /* Style value at the current pel. */ ULONG ulFlags; /* Flags used for the LINEPACK data structure. */ LINEPACK plpkNext; /* Pointer to next LINEPACK data structure. */ ULONG ulAbsDeltaX; /* Clipped Bresenham Delta X, absolute. */ ULONG ulAbsDeltaY; /* Clipped Bresenham Delta Y, absolute. */ POINTL ptlClipStart; /* Pointer to location for device to perform Bresenham algorithm. */ POINTL ptlClipEnd; /* Ending location for Bresenham algorithm (see ptlClipStart). */ POINTL ptlStart; /* Pointer to starting location for line. */ POINTL ptlEnd; /* Ending location for line. */ LONG lClipStartError; /* Standard Bresenham error at the clipped start point. */ } LINEPACK; typedef LINEPACK *PLINEPACK;
- Fields
- ulStyleStep(ULONG) Value to be added to ulStyleValue.
- The value to be added to ulStyleValue on each pel stepped along the style major direction.
- ulStyleValue(ULONG) Style value at the current pel.
- The style value is composed of an error value and a mask position, as follows:
high word 3 bits 5 bits 8 bits not used not used mask pos error value
- ulFlags(ULONG) Flags used for the LINEPACK data structure.
- LINE_DO_FIRST_PEL Draws the first pel.
- LINE_DIR_Y_POSITIVE Indicates line direction is bottom-to-top.
- LINE_HORIZONTAL Indicates line is horizontal. No Bresenham algorithm.
- LINE_X_MAJOR Line is XMAJOR.
- LINE_DIR_X_POSITIVE Indicates line direction is left-to-right.
- LINE_VERTICAL Indicates line is vertical. No Bresenham algorithm.
- LINE_STYLE_X_MAJOR Line style is XMAJOR.
- LINE_DO_LAST_PEL Draws the last pel.
- plpkNext(LINEPACK) Pointer to next LINEPACK data structure.
- ulAbsDeltaX(ULONG) Clipped Bresenham Delta X, absolute.
- ulAbsDeltaY(ULONG) Clipped Bresenham Delta Y, absolute.
- ptlClipStart(#POINTL) Pointer to location for device to perform Bresenham algorithm.
- Pointer to location where device performs the Bresenham algorithm. Sets only the pels from ptlClipStart to ptlClipEnd, inclusive.
- ptlClipEnd(POINTL) Ending location for Bresenham algorithm (see ptlClipStart).
- ptlStart(POINTL) Pointer to starting location for line.
- The device can perform the Bresenham algorithm from ptlStart or ptlClipStart.
- ptlEnd(POINTL) Ending location for line.
- lClipStartError(LONG) Standard Bresenham error at the clipped start point.
- Error is calculated from the initial error and the error increments for major step and diagonal step. The initial error and the error increments are as follows:
- MAX Maximum (ulAbsDeltaX, ulAbsDeltaY)
- MIN Minimum (ulAbsDeltaX, ulAbsDeltaY)
- Major Increment Increment to the error for stepping along the major axis:
- 2 * MIN.
- Diagonal Increment Increment to the error for stepping along the major and minor axes:
- 2 * MIN - 2 * MAX.
- Initial Error Error at the start point:
- 2 * MIN - MAX, if LINE_DIR_X_POSITIVE is On.
- 2 * MIN - MAX - 1, if LINE_DIR_X_POSITIVE is Off.
- Horizontal and vertical lines The line is drawn from the clipped start to clipped end.
- The lClipStartError will not be given.
- First pel consideration Set the first pel at ptlStart (not ptlClipStart) only if LINE_DO_FIRST_PEL is set and the first pel is not clipped.
- Last pel consideration Set the last pel at ptlEnd (not ptlClipEnd) only if LINE_DO_LAST_PEL is set and the last pel is not clipped.
- Styling Lines are styled using the ulStyleMask, ulStyleStep, and ulStyleValue.
- ulStyleMask A 32-bit style mask.
- Error Value Error value at the current pel.
- Mask Position Bit position of the ulStyleMask.
- If this bit is on, set the current pel to the ulFGColor through usForeROP; otherwise, set the current pel to the ulBGColor through usBackRop.
MEMINFO
Physical to linear virtual address range conversion structure.
typedef struct _MEMINFO { ULONG ulPhysAddr; /* Start of physical address range. */ ULONG ulMemLen; /* Length of address range in bytes. */ ULONG ulVirtAddr; /* Virtual address corresponding to physical address range start. */ /* (This linear virtual address is returned by VHPhysToVirt.) */ struct _MEMINFO pNextMI; /* Pointer to the next MEMINFO structure in linked list. */ /* In the last structure in the linked list, this must be set to NULL. */ } MEMINFO; typedef MEMINFO *PMEMINFO;
- Fields
- ulPhysAddr(ULONG)
- ulMemLen(ULONG)
- ulVirtAddr(ULONG)
- pNextMI(struct_MEMINFO)
MONITORINFO
The MONITORINFO data structure receives information for the current video monitor.
typedef struct _MONITORINFO { CHAR szMonitor[MAX_MONITOR_LEN]; /* Contains monitor information. */ MONITORMODEINFO MonitorModeInfo[MAX_MONITOR_MODES]; /* Contains information about the monitor mode. */ } MONITORINFO; typedef MONITORINFO * FAR * PMONITORINFO ;
- Fields
- szMonitor[MAX_MONITOR_LEN](CHAR) Contains monitor information.
- MonitorModeInfo[MAX_MONITOR_MODES](#MONITORMODEINFO) Contains information about the monitor mode.
MONITORMODEINFO
Contains information on the types of monitor modes.
typedef struct _MONITORMODEINFO { USHORT usXResolution; /* Horizontal pixels. */ USHORT usYResolution; /* Vertical scan lines. */ BYTE bVertRefresh; /* Vertical refresh rate. */ BYTE bHorizRefresh; /* Horizontal refresh rate. */ BYTE bVPolarityPos; /* Vertical polarity. */ BYTE bHPolarityPos; /* Horizontal polarity. */ USHORT usScrnTop; /* Vertical blanking away from the top, in line counts. */ USHORT usScrnBottom; /* Vertical blanking away from the bottom, in line counts. */ USHORT usScrnLeft; /* Horizontal blanking away from the left, in pixel counts. */ USHORT usScrnRight; /* Horizontal blanking away from the right, in pixel counts. */ } MONITORMODEINFO; typedef MONITORMODEINFO *FAR *PMONITORMODEINFO;
- Fields
- usXResolution(USHORT) Horizontal pixels.
- usYResolution(USHORT) Vertical scan lines.
- bVertRefresh(BYTE) Vertical refresh rate.
- bHorizRefresh(BYTE) Horizontal refresh rate.
- bVPolarityPos(BYTE) Vertical polarity.
- bHPolarityPos(BYTE) Horizontal polarity.
- usScrnTop(USHORT) Vertical blanking away from the top, in line counts.
- usScrnBottom(USHORT) Vertical blanking away from the bottom, in line counts.
- usScrnLeft(USHORT) Horizontal blanking away from the left, in pixel counts.
- usScrnRight(USHORT) Horizontal blanking away from the right, in pixel counts.
PALETTEDATA
The PALETTEDATA data structure contains information on the palette registers.
typedef struct _PALETTEDATA { ULONG ulPalCount; /* Specifies the number of bPaletteData entries that follow. */ ULONG ulPalStart; /* Start index for data. */ BYTE bPaletteData; /* One byte is allocated; start of palette. */ } PALETTEDATA; typedef PALETTEDATA *FAR *PPALETTEDATA;
- Fields
- ulPalCount(ULONG) Specifies the number of bPaletteData entries that follow .
- ulPalStart(ULONG) Start index for data.
- bPaletteData(BYTE) One byte is allocated; start of palette.
POINTL
Point structure (long integers).
typedef struct _POINTL { LONG x; /* X-coordinate. */ LONG y; /* Y-coordinate. */ } POINTL; typedef POINTL *PPOINTL;
- Fields
- x(LONG) X-coordinate.
- y(LONG) Y-coordinate.
RECTL
Rectangle structure.
typedef struct _RECTL { LONG xLeft; /* X-coordinate of left-hand edge of rectangle. */ LONG yBottom; /* Y-coordinate of bottom edge of rectangle. */ LONG xRight; /* X-coordinate of right-hand edge of rectangle. */ LONG yTop; /* Y-coordinate of top edge of rectangle. */ } RECTL; typedef RECTL *PRECTL;
- Fields
- xLeft(LONG) X-coordinate of left-hand edge of rectangle.
- yBottom(LONG) Y-coordinate of bottom edge of rectangle.
- xRight(LONG) X-coordinate of right-hand edge of rectangle.
- yTop(LONG) Y-coordinate of top edge of rectangle.
RGB
RGB color value.
typedef struct _RGB { BYTE bBlue; /* Blue component of the color definition. */ BYTE bGreen; /* Green component of the color definition. */ BYTE bRed; /* Red component of the color definition. */ } RGB; typedef RGB *PRGB;
- Fields
- bBlue(BYTE) Blue component of the color definition.
- bGreen(BYTE) Green component of the color definition.
- bRed(BYTE) Red component of the color definition.
RGB2
RGB color value.
typedef struct _RGB2 { BYTE bBlue; /* Blue component of the color definition. */ BYTE bGreen; /* Green component of the color definition. */ BYTE bRed; /* Red component of the color definition. */ BYTE fcOptions; /* Entry options. */ } RGB2; typedef RGB2 *PRGB2;
- Fields
- bBlue(BYTE) Blue component of the color definition.
- bGreen(BYTE) Green component of the color definition.
- bRed(BYTE) Red component of the color definition.
- fcOptions(BYTE) Entry options.
- These can be ORed together if required:
- PC_RESERVED The color entry is reserved for animating color with the palette manager.
- PC_EXPLICIT The low-order word of the color table entry designates a physical palette slot. This allows an application to show the actual contents of the device palette as realized for other logical palettes. This does not prevent the color in the slot from being changed for any reason.
SVGARGB
The SVGARGB data structure contains the values of RGB.
typedef struct _SVGARGB { BYTE bR; /* Value of Red. */ BYTE bG; /* Value of Green. */ BYTE bB; /* Value of Blue. */ BYTE bUnused; /* Reserved. */ } SVGARGB; typedef SVGARGB *FAR *PSVGARGB;
- Fields
- bR(BYTE) Value of Red.
- bG(BYTE) Value of Green.
- bB(BYTE) Value of Blue.
- bUnused(BYTE) Reserved.
TEXTBLTINFO
Information structure used for #GHI_CMD_TEXT and #VMI_CMD_TEXT functions. The TEXTBLTINFO structure includes a pointer to #DEVFONTINFO.
typedef struct _TEXTBLTINFO { ULONG ulLength; /* Length of the TEXTBLTINFO structure, in bytes. */ ULONG flOptions; /* Not used. */ ULONG lGlyphCnt; /* Count of glyph indices provided on this call. */ PLONG pGlyphIndicies; /* Pointer to glyph indices. */ ULONG ulFGMix; /* Foreground mix mode. */ ULONG ulBGMix; /* Background mix mode. */ ULONG ulFGColor; /* Foreground colors. */ ULONG ulBGColor; /* Background colors. */ PBMAPINFO pDstBmapInfo; /* Pointer to destination physical surface descriptions. */ PDEVFONTINFO pDevFntInfo; /* Pointer to DEVFONTINFO for additional font information. */ ULONG ulClpCnt; /* Number of clip regions that intersect glyph data. */ PBLTRECT abrClipRects; /* Array of ulClpCnt clip rectangles. */ PPOINTL aptlSrcOrg; /* Array of glyph origin points. */ PBLTRECT abrDst; /* Array of destination rectangles. */ } TEXTBLTINFO; typedef TEXTBLTINFO *PTEXTBLTINFO;
- Fields
- ulLength(ULONG) Length of the TEXTBLTINFO structure, in bytes.
- flOptions(ULONG) Not used.
- lGlyphCnt(ULONG) Count of glyph indices provided on this call.
- If the specified device does not support clipping, then this field may not match actual characters in the original string. Each glyph will be repeated for each clipping rectangle of that character.
- pGlyphIndicies(PLONG) Pointer to glyph indices.
- This string can also be modified based on lGlyphCnt conditions. Refer to #GLYPHINFO for example structures to access glyph information. The lowest byte is used to access the low byte table and the 2nd to lowest byte is used to access the high byte table.
- ulFGMix(ULONG) Foreground mix mode.
- ulBGMix(ULONG) Background mix mode.
- ulFGColor(ULONG) Foreground colors.
- ulBGColor(ULONG) Background colors.
- pDstBmapInfo(#PBMAPINFO) Pointer to destination physical surface descriptions.
- pDevFntInfo(#PDEVFONTINFO) Pointer to P#DEVFONTINFO for additional font information.
- ulClpCnt(ULONG) Number of clip regions that intersect glyph data.
- abrClipRects(#PBLTRECT) Array of ulClpCnt clip rectangles.
- aptlSrcOrg(#PPOINTL) Array of glyph origin points.
- abrDst(#PBLTRECT) Array of destination rectangles.
USERCAPSIN
Information structure used for #GHI_CMD_USERCAPS and #VMI_CMD_USERCAPS functions.
typedef struct _USERCAPSIN { ULONG ulLength; /* Length of the USERCAPSIN structure in bytes. */ ULONG ulFunction; /* Specifies the QUERYCAPS, QUERYCAPSLIST, or SETCAPS subfunctions. */ ULONG ulSize; /* Length, in bytes, of buffer area. */ } USERCAPSIN; typedef USERCAPSIN *PUSERCAPSIN;
- Fields
- ulLength(ULONG) Length of the USERCAPSIN structure in bytes.
- ulFunction(ULONG) Specifies the QUERYCAPS, QUERYCAPSLIST, or SETCAPS subfunctions.
- The subfunctions, specified by the ulFunction field of the USERCAPSIN structure, may be defined as follows:
- QUERYCAPS
#define QUERYCAPS 1L
- QUERYCAPS returns the number of capabilities and capability descriptions in the buffer area pointed to by pOut.
- Because the values for each capability are not yet allocated, the pValueList, pCurrentValue, and pDefaultValue fields in the #DRIVERCAPS structures must not be filled in for this call.
- The driver must ensure that the buffer area size, specified by ulSize, is sufficient for the supported number of capabilities. If not, the driver should return the number of capabilities supported in the first word of the buffer area and a return code of RC_ERROR. The driver will be reinvoked with a larger buffer area for QUERYCAPS. This allows a driver to export multiple capabilities (each, in turn, gets its own page in the System Object notebook).
- QUERYCAPSLIST
#define QUERYCAPSLIST 2L
- QUERYCAPSLIST fills the pValueList, pCurrentValue, and pDefaultValue fields in the #DRIVERCAPS structure pointed to by pOut. The members must be 0 padded up to the length specified by ulValueMemberSize.
- SETCAP
#define SETCAP 3L
- SETCAP sets a value that the user has selected. The value is specified in the pCurrentValue field of the #DRIVERCAPS structure pointed to by pOut.
- ulSize(ULONG) Length, in bytes, of buffer area.
VCRF
Data structure inside #INTCRF containing the register values to be passed in the bios call.
typedef struct _VCRF { ULONG reg_eax; ULONG reg_ebx; ULONG reg_ecx; ULONG reg_edx; ULONG reg_ebp; ULONG reg_esi; ULONG reg_edi; ULONG reg_ds; ULONG reg_es; ULONG reg_fs; ULONG reg_gs; ULONG reg_cs; ULONG reg_eip; ULONG reg_eflag; ULONG reg_ss; ULONG reg_esp; } VCRF;
- Fields
- reg_eax(ULONG)
- reg_ebx(ULONG)
- reg_ecx(ULONG)
- reg_edx(ULONG)
- reg_ebp(ULONG)
- reg_esi(ULONG)
- reg_edi(ULONG)
- reg_ds(ULONG)
- reg_es(ULONG)
- reg_fs(ULONG)
- reg_gs(ULONG)
- reg_cs(ULONG)
- reg_eip(ULONG)
- reg_eflag(ULONG)
- reg_ss(ULONG)
- reg_esp(ULONG)
VIDEO_ADAPTER
The VIDEO_ADAPTER data structure receives information for the desktop mode.
typedef struct _VIDEO_ADAPTER { HVIDEO hvideo; /* The handle for this adapter. */ ADAPTERINFO Adapter; /* Hardware information for this adapter. */ VIDEOMODEINFO ModeInfo; /* Information about the current video mode. */ } VIDEO_ADAPTER; typedef VIDEO_ADAPTER *FAR *PVIDEO_ADAPTER;
- Fields
- hvideo(HVIDEO) The handle for this adapter.
- Adapter(#ADAPTERINFO) Hardware information for this adapter.
- ModeInfo(#VIDEOMODEINFO) Information about the current video mode.
VIDEOMODEINFO
The VIDEOMODEINFO data structure receives information for the current video monitor.
- Note
- The cband ulColorsfields are new to VIDEDOMODEINFO. The color depth field (ulColors) was introduced to differentiate between pixel and color depth.
typedef struct _VIDEOMODEINFO { ULONG cb; /* Size of the structure. */ MODEID miModeId; /* Used to make a SetMode request. */ USHORT usType; /* Flag indicating mode type. */ USHORT usInt10ModeSet; /* Interrupt 10 mode. */ USHORT usXResolution; /* Horizontal pixels. */ USHORT usYResolution; /* Vertical scanlines. */ ULONG ulBufferAddress; /* Physical address of VRAM. */ ULONG ulApertureSize; /* VRAM aperture. */ ULONG ulColors; /* Color depth. */ BYTE bBitsPerPixel; /* Pixel depth. */ BYTE bBitPlanes; /* Number of planes. */ BYTE bXCharSize; /* Font width. */ BYTE bYCharSize; /* Font height. */ USHORT usBytesPerScanLine; /* Number of bytes per scan line. */ USHORT usTextRows; /* Number of text rows. */ ULONG ulPageLength; /* Number of bytes to save a plane. */ ULONG ulSavesize; /* Total bytes of VRAM to save. */ BYTE bVrtRefresh; /* Vertical refresh rate. */ BYTE bHrtRefresh; /* Horizontal refresh rate. */ BYTE bVrtPolPos; /* Vertical polarity. */ BYTE bHrtPolPos; /* Horizontal polarity. */ USHORT usScrnTop; /* Vertical blanking away from the top, in line counts. */ USHORT usScrnBottom; /* Vertical blanking away from the bottom, in line counts. */ USHORT usScrnLeft; /* Horizontal blanking away from the left, in pixel counts. */ USHORT usScrnRight; /* Horizontal blanking away from the right, in pixel counts. */ CHAR szColorFormat[8]; /* Color format string for true color or high-color modes. */ CHAR szColorWeight[8]; /* Color weight string for true color or high-color modes. */ } VIDEOMODEINFO; typedef VIDEOMODEINFO *FAR *PVIDEOMODEINFO;
- Fields
- cb(ULONG) Size of the structure.
- miModeId(MODEID) Used to make a SetMode request.
- usType(USHORT) Flag indicating mode type.
- The following values are valid for this flag:
- MODE_FLAG_NOT_MONO 0x0001; Mono-compatible
- MODE_FLAG_GRAPHICS 0x0002; Text mode, Graphics
- MODE_FLAG_NO_CLR_BRST 0x0004; Disable Color burst
- MODE_FLAG_NATIVE 0x0008; Native (advanced function) mode
- IGNORE_CLR_BRST 0x0010; Disable color burst; doesn't make sense for this mode
- NOT_PLASMA 0x0020; will not work on plasma display
- MODE_FLAG_VGA_ENTRY 0x0040; VGA mode, needs clean up
- usInt10ModeSet(USHORT) Interrupt 10 mode.
- usXResolution(USHORT) Horizontal pixels.
- usYResolution(USHORT) Vertical scanlines.
- ulBufferAddress(ULONG) Physical address of VRAM.
- ulApertureSize(ULONG) VRAM aperture.
- ulColors(ULONG) Color depth.
- bBitsPerPixel(BYTE) Pixel depth.
- bBitPlanes(BYTE) Number of planes.
- bXCharSize(BYTE) Font width.
- bYCharSize(BYTE) Font height.
- usBytesPerScanLine(USHORT) Number of bytes per scan line.
- usTextRows(USHORT) Number of text rows.
- ulPageLength(ULONG) Number of bytes to save a plane.
- ulSavesize(ULONG) Total bytes of VRAM to save.
- bVrtRefresh(BYTE) Vertical refresh rate.
- bHrtRefresh(BYTE) Horizontal refresh rate.
- bVrtPolPos(BYTE) Vertical polarity.
- bHrtPolPos(BYTE) Horizontal polarity.
- usScrnTop(USHORT) Vertical blanking away from the top, in line counts.
- usScrnBottom(USHORT) Vertical blanking away from the bottom, in line counts.
- usScrnLeft(USHORT) Horizontal blanking away from the left, in pixel counts.
- usScrnRight(USHORT) Horizontal blanking away from the right, in pixel counts.
- szColorFormat[8](CHAR) Color format string for true color or high-color modes.
- szColorWeight[8](CHAR) Color weight string for true color or high-color modes.
VIDEORESOURCEPACK
The VIDEORESOURCEPACK data structure contains resource information and definitions.
typedef struct _VIDEORESOURCEPACK { ULONG ConsRes; /* An array of resource definitions. */ ULONG ulNumCons; /* Number of resources. */ } VIDEORESOURCEPACK; typedef VIDEORESOURCEPACK *FAR *PVIDEORESOURCEPACK;
- Fields
- ConsRes(ULONG) An array of resource definitions.
- ulNumCons(ULONG) Number of resources.
VIDEOSTATE
The VIDEOSTATE data structure receives information for the mode to be saved.
typedef struct _VIDEOSTATE { ULONG fStateFlags; /* Flag indicating what to save. */ MODEID miState; /* Contains the mode ID for the mode to be saved. */ PVOID pModeData; /* Pointer to set mode command sequence. */ ULONG ulVRAMSaveSize; /* Number of bytes per page to save. */ PVRAMDATA pVRAM; /* Pointer to video memory. */ PCLUTDATA pCLUT; /* Pointer to palette data. */ PFONTDATA pFONT; /* Pointer to font data. */ } VIDEOSTATE; typedef VIDEOSTATE *FAR *PVIDEOSTATE;
- Fields
- fStateFlags(ULONG) Flag indicating what to save.
- STATEFLAG_REGISTERS 0x0001
- STATEFLAG_CLUT 0x0002
- STATEFLAG_VRAM 0x0004
- STATEFLAG_FONT 0x0008
- miState(MODEID) Contains the mode ID for the mode to be saved.
- pModeData(PVOID) Pointer to set mode command sequence.
- ulVRAMSaveSize(ULONG) Number of bytes per page to save.
- pVRAM(PVRAMDATA) Pointer to video memory.
- pCLUT(PCLUTDATA) Pointer to palette data.
- pFONT(PFONTDATA) Pointer to font data.
VMIQCI
Output packet returned by the GRADD to the caller of the VMI_CMD_ QUERYCHAININFO function.
typedef struct _VMIQCI { ULONG ulLength; /* Size of the VMIQCI data structure, in bytes. */ PCHAININFO pciHead; /* Pointer to the head of the GRADD chain. */ } VMIQCI; typedef VMIQCI *PVMIQCI;
- Fields
- ulLength(ULONG) Size of the VMIQCI data structure, in bytes.
- pciHead(#PCHAININFO) Pointer to the head of the GRADD chain.
VRAMALLOCIN
Input packet to the GHI_CMD_VRAM function.
typedef struct _VRAMALLOCIN { ULONG ulLength; /* Size of the VRAMALLOCIN data structure, in bytes. */ ULONG ulFlags; /* Flag indicating type of VRAM allocation. */ ULONG ulID; /* ID required as input only on deallocation. */ ULONG ulFunction; /* Requested function: allocate, deallocate, or query. */ ULONG ulHandle; /* Handle returned from registering. */ ULONG ulSize; /* Requested allocation size in bytes. */ ULONG ulWidth; /* Requested allocation width in pixels. */ ULONG ulHeight; /* Requested allocation height in scanlines. */ } VRAMALLOCIN; typedef VRAMALLOCIN *PVRAMALLOCIN;
- Fields
- ulLength(ULONG) Size of the VRAMALLOCIN data structure, in bytes.
- ulFlags(ULONG) Flag indicating type of VRAM allocation.
- Values are as follows:
- VRAM_ALLOC_SHARED 0x0001
- VRAM_ALLOC_RECTANGLE 0x0002
- VRAM_ALLOC_STATIC 0x1000
- ulID(ULONG) ID required as input only on deallocation.
- ulFunction(ULONG) Requested function: allocate, deallocate, or query.
- Values are as follows:
- VRAM_ALLOCATE 1
- VRAM_DEALLOCATE 2
- VRAM_QUERY 3
- ulHandle(ULONG) Handle returned from registering.
- ulSize(ULONG) Requested allocation size in bytes.
- ulWidth(ULONG) Requested allocation width in pixels.
- ulHeight(ULONG) Requested allocation height in scanlines.
VRAMALLOCOUT
Output packet returned by the GRADD to the caller of the GHI_CMD_VRAM function.
typedef struct _VRAMALLOCOUT { ULONG ulLength; /* Size of the VRAMALLOCOUT data structure, in bytes. */ ULONG ulFlags; /* Flag indicating type of VRAM allocation. */ ULONG ulID; /* ID returned on allocation. */ POINTL ptlStart; /* X and Y location of VRAM. */ ULONG ulSize; /* Requested size of VRAM, in bytes. */ ULONG ulScanLineBytes; /* Length of scan line, in bytes. */ } VRAMALLOCOUT; typedef VRAMALLOCOUT *PVRAMALLOCOUT;
- Fields
- ulLength(ULONG) Size of the VRAMALLOCOUT data structure, in bytes.
- ulFlags(ULONG) Flag indicating type of VRAM allocation.
- Value is as follows:
- VRAM_ALLOC_WORKBUFFER 0x0004
- ulID(ULONG) ID returned on allocation.
- ptlStart(#POINTL) X and Y location of VRAM.
- ulSize(ULONG) Requested size of VRAM, in bytes.
- ulScanLineBytes(ULONG) Length of scan line, in bytes.
VRAMDATA
The VRAMDATA data structure is a pointer to video memory.
typedef BYTE VRAMDATA;
VRAMIN
Input packet to the #GHI_CMD_VRAM function.
typedef struct _VRAMIN { ULONG ulLength; /* Size of the VRAMIN data structure, in bytes. */ ULONG ulFunction; /* Flag indicating type of VRAM allocation. */ PVOID pIn; /* Pointer to an allocate or register packet. */ } VRAMIN; typedef VRAMIN *PVRAMIN;
- Fields
- ulLength(ULONG) Size of the VRAMIN data structure, in bytes.
- ulFunction(ULONG) Flag indicating type of VRAM allocation.
- Values are as follows:
- VRAM_ALLOCATE 1
- VRAM_DEALLOCATE 2
- VRAM_QUERY 3
- VRAM_REGISTER 4
- VRAM_DEREGISTER 5
- pIn(PVOID) Pointer to an allocate or register packet.
- If the ulFunction field of the VRAMIN structure is set to VRAM_ALLOCATE, VRAM_DEALLOCATE, or VRAM_QUERY, then pIn points to a #VRAMALLOCIN data structure.
- If the ulFunction field of the VRAMIN structure is set to VRAM_REGISTER or VRAM_DEGISTER, then pIn points to a #VRAMREGISTERIN data structure.
VRAMREGISTERIN
Input packet to the GHI_CMD_VRAM function via the VRAMIN data structure.
typedef struct _VRAMREGISTERIN { ULONG ulLength; /* Size of the VRAMREGISTERIN data structure, in bytes. */ ULONG ulHandle; /* Handle required as input on deregister. */ ULONG ulFlags; /* Flag indicating type of VRAM registration. */ } VRAMREGISTERIN; typedef VRAMREGISTERIN *PVRAMREGISTERIN;
- Fields
- ulLength(ULONG) Size of the VRAMREGISTERIN data structure, in bytes.
- ulHandle(ULONG) Handle required as input on deregister.
- ulFlags(ULONG) Flag indicating type of VRAM registration.
- Values are as follows:
- VRAM_REGISTER_HANDLE 0x0001
- VRAM_REGISTER_VRAMONLY 0x1000
- Values are as follows:
VRAMREGISTEROUT
Output packet returned by the GRADD to the caller of the GHI_CMD_VRAM function via the VRAMIN data structure.
typedef struct _VRAMREGISTEROUT { ULONG ulLength; /* Size of the VRAMREGISTEROUT data structure, in bytes. */ ULONG ulFlags; /* Not used at this time. */ ULONG ulHandle; /* Handle returned on register. */ } VRAMREGISTEROUT; typedef VRAMREGISTEROUT *PVRAMRGISTEROUT;
- Fields
- ulLength(ULONG) Size of the VRAMREGISTEROUT data structure, in bytes.
- ulFlags(ULONG) Not used at this time.
- ulHandle(ULONG) Handle returned on register.