--- /dev/null
+/****************************************************************************
+*
+* VBE 2.0 Linear Framebuffer Profiler
+* By Kendall Bennett and Brian Hook
+*
+* Filename: LFBPROF.H
+* Language: ANSI C
+* Environment: Watcom C/C++ 10.0a with DOS4GW
+*
+* Description: Header file for the LFBPROF.C progam.
+*
+****************************************************************************/
+
+#ifndef __LFBPROF_H
+#define __LFBPROF_H
+
+/*---------------------- Macros and type definitions ----------------------*/
+
+#pragma pack(1)
+
+/* SuperVGA information block */
+
+typedef struct {
+ char VESASignature[4]; /* 'VESA' 4 byte signature */
+ short VESAVersion; /* VBE version number */
+ long OemStringPtr; /* Pointer to OEM string */
+ long Capabilities; /* Capabilities of video card */
+ long VideoModePtr; /* Pointer to supported modes */
+ short TotalMemory; /* Number of 64kb memory blocks */
+
+ /* VBE 2.0 extensions */
+
+ short OemSoftwareRev; /* OEM Software revision number */
+ long OemVendorNamePtr; /* Pointer to Vendor Name string */
+ long OemProductNamePtr; /* Pointer to Product Name string */
+ long OemProductRevPtr; /* Pointer to Product Revision str */
+ char reserved[222]; /* Pad to 256 byte block size */
+ char OemDATA[256]; /* Scratch pad for OEM data */
+ } VBE_vgaInfo;
+
+/* SuperVGA mode information block */
+
+typedef struct {
+ short ModeAttributes; /* Mode attributes */
+ char WinAAttributes; /* Window A attributes */
+ char WinBAttributes; /* Window B attributes */
+ short WinGranularity; /* Window granularity in k */
+ short WinSize; /* Window size in k */
+ short WinASegment; /* Window A segment */
+ short WinBSegment; /* Window B segment */
+ long WinFuncPtr; /* Pointer to window function */
+ short BytesPerScanLine; /* Bytes per scanline */
+ short XResolution; /* Horizontal resolution */
+ short YResolution; /* Vertical resolution */
+ char XCharSize; /* Character cell width */
+ char YCharSize; /* Character cell height */
+ char NumberOfPlanes; /* Number of memory planes */
+ char BitsPerPixel; /* Bits per pixel */
+ char NumberOfBanks; /* Number of CGA style banks */
+ char MemoryModel; /* Memory model type */
+ char BankSize; /* Size of CGA style banks */
+ char NumberOfImagePages; /* Number of images pages */
+ char res1; /* Reserved */
+ char RedMaskSize; /* Size of direct color red mask */
+ char RedFieldPosition; /* Bit posn of lsb of red mask */
+ char GreenMaskSize; /* Size of direct color green mask */
+ char GreenFieldPosition; /* Bit posn of lsb of green mask */
+ char BlueMaskSize; /* Size of direct color blue mask */
+ char BlueFieldPosition; /* Bit posn of lsb of blue mask */
+ char RsvdMaskSize; /* Size of direct color res mask */
+ char RsvdFieldPosition; /* Bit posn of lsb of res mask */
+ char DirectColorModeInfo; /* Direct color mode attributes */
+
+ /* VBE 2.0 extensions */
+
+ long PhysBasePtr; /* Physical address for linear buf */
+ long OffScreenMemOffset; /* Pointer to start of offscreen mem*/
+ short OffScreenMemSize; /* Amount of offscreen mem in 1K's */
+ char res2[206]; /* Pad to 256 byte block size */
+ } VBE_modeInfo;
+
+#define vbeMemPK 4 /* Packed Pixel memory model */
+#define vbeUseLFB 0x4000 /* Enable linear framebuffer mode */
+
+/* Flags for the mode attributes returned by VBE_getModeInfo. If
+ * vbeMdNonBanked is set to 1 and vbeMdLinear is also set to 1, then only
+ * the linear framebuffer mode is available.
+ */
+
+#define vbeMdAvailable 0x0001 /* Video mode is available */
+#define vbeMdColorMode 0x0008 /* Mode is a color video mode */
+#define vbeMdGraphMode 0x0010 /* Mode is a graphics mode */
+#define vbeMdNonBanked 0x0040 /* Banked mode is not supported */
+#define vbeMdLinear 0x0080 /* Linear mode supported */
+
+/* Structures for issuing real mode interrupts with DPMI */
+
+struct _RMWORDREGS {
+ unsigned short ax, bx, cx, dx, si, di, cflag;
+ };
+
+struct _RMBYTEREGS {
+ unsigned char al, ah, bl, bh, cl, ch, dl, dh;
+ };
+
+typedef union {
+ struct _RMWORDREGS x;
+ struct _RMBYTEREGS h;
+ } RMREGS;
+
+typedef struct {
+ unsigned short es;
+ unsigned short cs;
+ unsigned short ss;
+ unsigned short ds;
+ } RMSREGS;
+
+/* Inline assembler block fill/move routines */
+
+void LfbMemset(void *p,int c,int n);
+#pragma aux LfbMemset = \
+ "shr ecx,2" \
+ "xor eax,eax" \
+ "mov al,bl" \
+ "shl ebx,8" \
+ "or ax,bx" \
+ "mov ebx,eax" \
+ "shl ebx,16" \
+ "or eax,ebx" \
+ "rep stosd" \
+ parm [edi] [ebx] [ecx];
+
+void LfbMemcpy(void *dst,void *src,int n);
+#pragma aux LfbMemcpy = \
+ "shr ecx,2" \
+ "rep movsd" \
+ parm [edi] [esi] [ecx];
+
+/* Map a real mode pointer into address space */
+
+#define LfbMapRealPointer(p) (void*)(((unsigned)((p) & 0xFFFF0000) >> 12) + ((p) & 0xFFFF))
+
+/* Get the current timer tick count */
+
+#define LfbGetTicks() *((long*)0x46C)
+
+#pragma pack()
+
+#endif /* __LFBPROF_H */
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