| /**************************************************************************** |
| * |
| * 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 */ |
