+++ /dev/null
-/* $Id: bootvid.c,v 1.1 2003/08/11 18:50:12 chorns Exp $
- *
- * COPYRIGHT: See COPYING in the top level directory
- * PROJECT: ReactOS kernel
- * FILE: ntoskrnl/inbv/bootvid.c
- * PURPOSE: Boot video support
- * PROGRAMMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
- * UPDATE HISTORY:
- * 12-07-2003 CSH Created
- */
-
-/* INCLUDES ******************************************************************/
-
-#include <roskrnl.h>
-#include <reactos/resource.h>
-#include <internal/i386/mm.h>
-#include <internal/v86m.h>
-
-#define NDEBUG
-#include <internal/debug.h>
-
-#define RT_BITMAP 2
-
-typedef struct tagRGBQUAD {
- unsigned char rgbBlue;
- unsigned char rgbGreen;
- unsigned char rgbRed;
- unsigned char rgbReserved;
-} RGBQUAD, *PRGBQUAD;
-
-typedef long FXPT2DOT30;
-
-typedef struct tagCIEXYZ {
- FXPT2DOT30 ciexyzX;
- FXPT2DOT30 ciexyzY;
- FXPT2DOT30 ciexyzZ;
-} CIEXYZ;
-typedef CIEXYZ * LPCIEXYZ;
-
-typedef struct tagCIEXYZTRIPLE {
- CIEXYZ ciexyzRed;
- CIEXYZ ciexyzGreen;
- CIEXYZ ciexyzBlue;
-} CIEXYZTRIPLE;
-typedef CIEXYZTRIPLE *LPCIEXYZTRIPLE;
-
-typedef struct {
- DWORD bV5Size;
- LONG bV5Width;
- LONG bV5Height;
- WORD bV5Planes;
- WORD bV5BitCount;
- DWORD bV5Compression;
- DWORD bV5SizeImage;
- LONG bV5XPelsPerMeter;
- LONG bV5YPelsPerMeter;
- DWORD bV5ClrUsed;
- DWORD bV5ClrImportant;
- DWORD bV5RedMask;
- DWORD bV5GreenMask;
- DWORD bV5BlueMask;
- DWORD bV5AlphaMask;
- DWORD bV5CSType;
- CIEXYZTRIPLE bV5Endpoints;
- DWORD bV5GammaRed;
- DWORD bV5GammaGreen;
- DWORD bV5GammaBlue;
- DWORD bV5Intent;
- DWORD bV5ProfileData;
- DWORD bV5ProfileSize;
- DWORD bV5Reserved;
-} BITMAPV5HEADER, *PBITMAPV5HEADER;
-
-
-#define MISC 0x3c2
-#define SEQ 0x3c4
-#define CRTC 0x3d4
-#define GRAPHICS 0x3ce
-#define FEATURE 0x3da
-#define ATTRIB 0x3c0
-#define STATUS 0x3da
-
-typedef struct _VideoMode {
- unsigned short VidSeg;
- unsigned char Misc;
- unsigned char Feature;
- unsigned short Seq[6];
- unsigned short Crtc[25];
- unsigned short Gfx[9];
- unsigned char Attrib[21];
-} VideoMode;
-
-typedef struct {
- ULONG r;
- ULONG g;
- ULONG b;
-} FADER_PALETTE_ENTRY;
-
-/* In pixelsups.S */
-extern VOID
-InbvPutPixels(int x, int y, unsigned long c);
-
-/* GLOBALS *******************************************************************/
-
-char *vidmem;
-
-/* Must be 4 bytes per entry */
-long maskbit[640];
-long y80[480];
-
-static HANDLE BitmapThreadHandle;
-static CLIENT_ID BitmapThreadId;
-static BOOLEAN BitmapIsDrawn;
-static BOOLEAN BitmapThreadShouldTerminate;
-static PUCHAR BootimageBitmap;
-static BOOLEAN InGraphicsMode = FALSE;
-
-/* DATA **********************************************************************/
-
-static VideoMode Mode12 = {
- 0xa000, 0xe3, 0x00,
-
- {0x03, 0x01, 0x0f, 0x00, 0x06 },
-
- {0x5f, 0x4f, 0x50, 0x82, 0x54, 0x80, 0x0b, 0x3e, 0x00, 0x40, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x59, 0xea, 0x8c, 0xdf, 0x28, 0x00, 0xe7, 0x04, 0xe3,
- 0xff},
-
- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x0f, 0xff},
-
- {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
- 0x0c, 0x0d, 0x0e, 0x0f, 0x81, 0x00, 0x0f, 0x00, 0x00}
-};
-
-static BOOLEAN VideoAddressSpaceInitialized = FALSE;
-static PVOID NonBiosBaseAddress;
-
-/* FUNCTIONS *****************************************************************/
-
-static BOOLEAN
-InbvFindBootimage()
-{
- PIMAGE_RESOURCE_DATA_ENTRY ResourceDataEntry;
- LDR_RESOURCE_INFO ResourceInfo;
- NTSTATUS Status;
- PVOID BaseAddress = (PVOID)KERNEL_BASE;
- ULONG Size;
-
- ResourceInfo.Type = RT_BITMAP;
- ResourceInfo.Name = IDB_BOOTIMAGE;
- ResourceInfo.Language = 0x09;
-
- Status = LdrFindResource_U(BaseAddress,
- &ResourceInfo,
- RESOURCE_DATA_LEVEL,
- &ResourceDataEntry);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("LdrFindResource_U() failed with status 0x%.08x\n", Status);
- return FALSE;
- }
-
- Status = LdrAccessResource(BaseAddress,
- ResourceDataEntry,
- (PVOID*)&BootimageBitmap,
- &Size);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("LdrAccessResource() failed with status 0x%.08x\n", Status);
- return FALSE;
- }
-
- return TRUE;
-}
-
-
-static BOOLEAN
-InbvInitializeVideoAddressSpace(VOID)
-{
- OBJECT_ATTRIBUTES ObjectAttributes;
- UNICODE_STRING PhysMemName;
- NTSTATUS Status;
- HANDLE PhysMemHandle;
- PVOID BaseAddress;
- LARGE_INTEGER Offset;
- ULONG ViewSize;
- CHAR IVT[1024];
- CHAR BDA[256];
- PVOID start = (PVOID)0x0;
-
- /*
- * Open the physical memory section
- */
- RtlInitUnicodeStringFromLiteral(&PhysMemName, L"\\Device\\PhysicalMemory");
- InitializeObjectAttributes(&ObjectAttributes,
- &PhysMemName,
- 0,
- NULL,
- NULL);
- Status = NtOpenSection(&PhysMemHandle, SECTION_ALL_ACCESS,
- &ObjectAttributes);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("Couldn't open \\Device\\PhysicalMemory\n");
- return FALSE;
- }
-
- /*
- * Map the BIOS and device registers into the address space
- */
- Offset.QuadPart = 0xa0000;
- ViewSize = 0x100000 - 0xa0000;
- BaseAddress = (PVOID)0xa0000;
- Status = NtMapViewOfSection(PhysMemHandle,
- NtCurrentProcess(),
- &BaseAddress,
- 0,
- 8192,
- &Offset,
- &ViewSize,
- ViewUnmap,
- 0,
- PAGE_EXECUTE_READWRITE);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("Couldn't map physical memory (%x)\n", Status);
- NtClose(PhysMemHandle);
- return FALSE;
- }
- NtClose(PhysMemHandle);
- if (BaseAddress != (PVOID)0xa0000)
- {
- DPRINT("Couldn't map physical memory at the right address "
- "(was %x)\n", BaseAddress);
- return FALSE;
- }
-
- /*
- * Map some memory to use for the non-BIOS parts of the v86 mode address
- * space
- */
- NonBiosBaseAddress = (PVOID)0x1;
- ViewSize = 0xa0000 - 0x1000;
- Status = NtAllocateVirtualMemory(NtCurrentProcess(),
- &NonBiosBaseAddress,
- 0,
- &ViewSize,
- MEM_COMMIT,
- PAGE_EXECUTE_READWRITE);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("Failed to allocate virtual memory (Status %x)\n", Status);
- return FALSE;
- }
- if (NonBiosBaseAddress != (PVOID)0x0)
- {
- DPRINT("Failed to allocate virtual memory at right address "
- "(was %x)\n", NonBiosBaseAddress);
- return FALSE;
- }
-
- /*
- * Get the real mode IVT from the kernel
- */
- Status = NtVdmControl(0, IVT);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("NtVdmControl failed (status %x)\n", Status);
- return FALSE;
- }
-
- /*
- * Copy the real mode IVT into the right place
- */
- memcpy(start, IVT, 1024);
-
- /*
- * Get the BDA from the kernel
- */
- Status = NtVdmControl(1, BDA);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("NtVdmControl failed (status %x)\n", Status);
- return FALSE;
- }
-
- /*
- * Copy the BDA into the right place
- */
- memcpy((PVOID)0x400, BDA, 256);
-
- return TRUE;
-}
-
-
-static BOOLEAN
-InbvDeinitializeVideoAddressSpace(VOID)
-{
- ULONG RegionSize;
- PUCHAR ViewBase;
-
- RegionSize = 0xa0000 - 0x1000;
- NtFreeVirtualMemory(NtCurrentProcess(),
- &NonBiosBaseAddress,
- &RegionSize,
- MEM_RELEASE);
-
- ViewBase = (PUCHAR) 0xa0000;
- NtUnmapViewOfSection(NtCurrentProcess(), ViewBase);
-
- return TRUE;
-}
-
-
-static VOID
-vgaPreCalc()
-{
- ULONG j;
-
- for(j = 0; j < 80; j++)
- {
- maskbit[j * 8 + 0] = 128;
- maskbit[j * 8 + 1] = 64;
- maskbit[j * 8 + 2] = 32;
- maskbit[j * 8 + 3] = 16;
- maskbit[j * 8 + 4] = 8;
- maskbit[j * 8 + 5] = 4;
- maskbit[j * 8 + 6] = 2;
- maskbit[j * 8 + 7] = 1;
- }
- for(j = 0; j < 480; j++)
- {
- y80[j] = j * 80; /* 80 = 640 / 8 = Number of bytes per scanline */
- }
-}
-
-static __inline__ VOID
-InbvOutxay(PUSHORT ad, UCHAR x, UCHAR y)
-{
- USHORT xy = (x << 8) + y;
- WRITE_PORT_USHORT(ad, xy);
-}
-
-
-static VOID
-InbvSetMode(VideoMode mode)
-{
- unsigned char x;
-
- WRITE_PORT_UCHAR((PUCHAR)MISC, mode.Misc);
- WRITE_PORT_UCHAR((PUCHAR)STATUS, 0);
- WRITE_PORT_UCHAR((PUCHAR)FEATURE, mode.Feature);
-
- for(x=0; x<5; x++)
- {
- InbvOutxay((PUSHORT)SEQ, mode.Seq[x], x);
- }
-
- WRITE_PORT_USHORT((PUSHORT)CRTC, 0x11);
- WRITE_PORT_USHORT((PUSHORT)CRTC, (mode.Crtc[0x11] & 0x7f));
-
- for(x=0; x<25; x++)
- {
- InbvOutxay((PUSHORT)CRTC, mode.Crtc[x], x);
- }
-
- for(x=0; x<9; x++)
- {
- InbvOutxay((PUSHORT)GRAPHICS, mode.Gfx[x], x);
- }
-
- x=READ_PORT_UCHAR((PUCHAR)FEATURE);
-
- for(x=0; x<21; x++)
- {
- WRITE_PORT_UCHAR((PUCHAR)ATTRIB, x);
- WRITE_PORT_UCHAR((PUCHAR)ATTRIB, mode.Attrib[x]);
- }
-
- x=READ_PORT_UCHAR((PUCHAR)STATUS);
-
- WRITE_PORT_UCHAR((PUCHAR)ATTRIB, 0x20);
-}
-
-
-static VOID
-InbvInitVGAMode(VOID)
-{
- KV86M_REGISTERS Regs;
- NTSTATUS Status;
-
- vidmem = (char *)(0xd0000000 + 0xa0000);
- memset(&Regs, 0, sizeof(Regs));
- Regs.Eax = 0x0012;
-
- Status = Ke386CallBios(0x10, &Regs);
- assert(NT_SUCCESS(Status));
-
- /* Get VGA registers into the correct state (mainly for setting up the palette registers correctly) */
- InbvSetMode(Mode12);
-
- /* Get the VGA into the mode we want to work with */
- WRITE_PORT_UCHAR((PUCHAR)0x3ce,0x08); /* Set */
- WRITE_PORT_UCHAR((PUCHAR)0x3cf,0); /* the MASK */
- WRITE_PORT_USHORT((PUSHORT)0x3ce,0x0205); /* write mode = 2 (bits 0,1) read mode = 0 (bit 3) */
- (UCHAR) READ_REGISTER_UCHAR(vidmem); /* Update bit buffer */
- WRITE_REGISTER_UCHAR(vidmem, 0); /* Write the pixel */
- WRITE_PORT_UCHAR((PUCHAR)0x3ce,0x08);
- WRITE_PORT_UCHAR((PUCHAR)0x3cf,0xff);
-
- /* Zero out video memory (clear a possibly trashed screen) */
- RtlZeroMemory(vidmem, 64000);
-
- vgaPreCalc();
-}
-
-
-BOOLEAN
-STDCALL
-VidResetDisplay(VOID)
-{
- KV86M_REGISTERS Regs;
- NTSTATUS Status;
-
-#if 0
- /* FIXME: What if the system has crashed, eg. this function is called from KeBugCheck() ? */
-
- /* Maybe wait until boot screen bitmap is drawn */
- while (!BitmapIsDrawn)
- {
- NtYieldExecution();
- }
-#endif
-
- /* Zero out video memory (clear the screen) */
- RtlZeroMemory(vidmem, 64000);
-
- memset(&Regs, 0, sizeof(Regs));
- Regs.Eax = 0x0003;
- Status = Ke386CallBios(0x10, &Regs);
- assert(NT_SUCCESS(Status));
-
- memset(&Regs, 0, sizeof(Regs));
- Regs.Eax = 0x1112;
- Status = Ke386CallBios(0x10, &Regs);
- assert(NT_SUCCESS(Status));
-
- memset(&Regs, 0, sizeof(Regs));
- Regs.Eax = 0x0632; // AH = 0x06 - Scroll active page up, AL = 0x32 - Clear 25 lines
- Regs.Ecx = 0x0000; // CX = 0x0000 - Upper left of scroll
- Regs.Edx = 0x314F; // DX = 0x314F - Lower right of scroll
- Regs.Ebx = 0x1100; // Use normal attribute on blanked line
- Status = Ke386CallBios(0x10, &Regs);
- assert(NT_SUCCESS(Status));
-
- InGraphicsMode = FALSE;
-
- return TRUE;
-}
-
-
-VOID
-STDCALL
-VidCleanUp(VOID)
-{
- if (InGraphicsMode)
- {
- VidResetDisplay();
- }
-
- if (VideoAddressSpaceInitialized)
- {
- InbvDeinitializeVideoAddressSpace();
- VideoAddressSpaceInitialized = FALSE;
- }
-
- BitmapThreadShouldTerminate = TRUE;
-}
-
-
-static __inline__ VOID
-InbvSetColor(int cindex, unsigned char red, unsigned char green, unsigned char blue)
-{
- red = red / (256 / 64);
- green = green / (256 / 64);
- blue = blue / (256 / 64);
-
- WRITE_PORT_UCHAR((PUCHAR)0x03c8, cindex);
- WRITE_PORT_UCHAR((PUCHAR)0x03c9, red);
- WRITE_PORT_UCHAR((PUCHAR)0x03c9, green);
- WRITE_PORT_UCHAR((PUCHAR)0x03c9, blue);
-}
-
-
-static __inline__ VOID
-InbvSetBlackPalette()
-{
- register ULONG r = 0;
-
- for (r = 0; r < 16; r++)
- {
- InbvSetColor(r, 0, 0, 0);
- }
-}
-
-
-static VOID
-InbvDisplayBitmap(ULONG Width, ULONG Height, PCHAR ImageData)
-{
- ULONG j,k,y;
- register ULONG i;
- register ULONG x;
- register ULONG c;
-
- k = 0;
- for (y = 0; y < Height; y++)
- {
- for (j = 0; j < 8; j++)
- {
- x = j;
-
- /*
- * Loop through the line and process every 8th pixel.
- * This way we can get a way with using the same bit mask
- * for several pixels and thus not need to do as much I/O
- * communication.
- */
- while (x < 640)
- {
- c = 0;
-
- if (x < Width)
- {
- c = ImageData[k + x];
- for (i = 1; i < 4; i++)
- {
- if (x + i*8 < Width)
- {
- c |= (ImageData[k + x + i * 8] << i * 8);
- }
- }
- }
-
- InbvPutPixels(x, 479 - y, c);
- x += 8*4;
- }
- }
- k += Width;
- }
-}
-
-
-static VOID
-InbvDisplayCompressedBitmap()
-{
- PBITMAPV5HEADER bminfo;
- ULONG i,j,k;
- ULONG x,y;
- ULONG curx,cury;
- ULONG bfOffBits;
- ULONG clen;
- PCHAR ImageData;
-
- bminfo = (PBITMAPV5HEADER) &BootimageBitmap[0];
- DPRINT("bV5Size = %d\n", bminfo->bV5Size);
- DPRINT("bV5Width = %d\n", bminfo->bV5Width);
- DPRINT("bV5Height = %d\n", bminfo->bV5Height);
- DPRINT("bV5Planes = %d\n", bminfo->bV5Planes);
- DPRINT("bV5BitCount = %d\n", bminfo->bV5BitCount);
- DPRINT("bV5Compression = %d\n", bminfo->bV5Compression);
- DPRINT("bV5SizeImage = %d\n", bminfo->bV5SizeImage);
- DPRINT("bV5XPelsPerMeter = %d\n", bminfo->bV5XPelsPerMeter);
- DPRINT("bV5YPelsPerMeter = %d\n", bminfo->bV5YPelsPerMeter);
- DPRINT("bV5ClrUsed = %d\n", bminfo->bV5ClrUsed);
- DPRINT("bV5ClrImportant = %d\n", bminfo->bV5ClrImportant);
-
- bfOffBits = bminfo->bV5Size + bminfo->bV5ClrUsed * sizeof(RGBQUAD);
- DPRINT("bfOffBits = %d\n", bfOffBits);
- DPRINT("size of color indices = %d\n", bminfo->bV5ClrUsed * sizeof(RGBQUAD));
- DPRINT("first byte of data = %d\n", BootimageBitmap[bfOffBits]);
-
- InbvSetBlackPalette();
-
- ImageData = ExAllocatePool(NonPagedPool, bminfo->bV5Width * bminfo->bV5Height);
- RtlZeroMemory(ImageData, bminfo->bV5Width * bminfo->bV5Height);
-
- /*
- * ImageData has 1 pixel per byte.
- * bootimage has 2 pixels per byte.
- */
-
- if (bminfo->bV5Compression == 2)
- {
- k = 0;
- j = 0;
- while ((j < bminfo->bV5SizeImage) && (k < (ULONG) (bminfo->bV5Width * bminfo->bV5Height)))
- {
- unsigned char b;
-
- clen = BootimageBitmap[bfOffBits + j];
- j++;
-
- if (clen > 0)
- {
- /* Encoded mode */
-
- b = BootimageBitmap[bfOffBits + j];
- j++;
-
- for (i = 0; i < (clen / 2); i++)
- {
- ImageData[k] = (b & 0xf0) >> 4;
- k++;
- ImageData[k] = b & 0xf;
- k++;
- }
- if ((clen & 1) > 0)
- {
- ImageData[k] = (b & 0xf0) >> 4;
- k++;
- }
- }
- else
- {
- /* Absolute mode */
- b = BootimageBitmap[bfOffBits + j];
- j++;
-
- if (b == 0)
- {
- /* End of line */
- }
- else if (b == 1)
- {
- /* End of image */
- break;
- }
- else if (b == 2)
- {
- x = BootimageBitmap[bfOffBits + j];
- j++;
- y = BootimageBitmap[bfOffBits + j];
- j++;
- curx = k % bminfo->bV5Width;
- cury = k / bminfo->bV5Width;
- k = (cury + y) * bminfo->bV5Width + (curx + x);
- }
- else
- {
- if ((j & 1) > 0)
- {
- DPRINT("Unaligned copy!\n");
- }
-
- clen = b;
- for (i = 0; i < (clen / 2); i++)
- {
- b = BootimageBitmap[bfOffBits + j];
- j++;
-
- ImageData[k] = (b & 0xf0) >> 4;
- k++;
- ImageData[k] = b & 0xf;
- k++;
- }
- if ((clen & 1) > 0)
- {
- b = BootimageBitmap[bfOffBits + j];
- j++;
- ImageData[k] = (b & 0xf0) >> 4;
- k++;
- }
- /* Word align */
- j += (j & 1);
- }
- }
- }
-
- InbvDisplayBitmap(bminfo->bV5Width, bminfo->bV5Height, ImageData);
- }
- else
- {
- DbgPrint("Warning boot image need to be compressed using RLE4\n");
- }
-
- ExFreePool(ImageData);
-}
-
-
-#define PALETTE_FADE_STEPS 20
-#define PALETTE_FADE_TIME 20 * 10000 /* 20ms */
-
-static VOID
-InbvFadeUpPalette()
-{
- PBITMAPV5HEADER bminfo;
- PRGBQUAD Palette;
- ULONG i;
- unsigned char r,g,b;
- register ULONG c;
- LARGE_INTEGER Interval;
- FADER_PALETTE_ENTRY FaderPalette[16];
- FADER_PALETTE_ENTRY FaderPaletteDelta[16];
-
- RtlZeroMemory(&FaderPalette, sizeof(FaderPalette));
- RtlZeroMemory(&FaderPaletteDelta, sizeof(FaderPaletteDelta));
-
- bminfo = (PBITMAPV5HEADER) &BootimageBitmap[0]; //sizeof(BITMAPFILEHEADER)];
- Palette = (PRGBQUAD) &BootimageBitmap[/* sizeof(BITMAPFILEHEADER) + */ bminfo->bV5Size];
-
- for (i = 0; i < 16; i++)
- {
- if (i < bminfo->bV5ClrUsed)
- {
- FaderPaletteDelta[i].r = ((Palette[i].rgbRed << 8) / PALETTE_FADE_STEPS);
- FaderPaletteDelta[i].g = ((Palette[i].rgbGreen << 8) / PALETTE_FADE_STEPS);
- FaderPaletteDelta[i].b = ((Palette[i].rgbBlue << 8) / PALETTE_FADE_STEPS);
- }
- }
-
- for (i = 0; i < PALETTE_FADE_STEPS; i++)
- {
- for (c = 0; c < bminfo->bV5ClrUsed; c++)
- {
- /* Add the delta */
- FaderPalette[c].r += FaderPaletteDelta[c].r;
- FaderPalette[c].g += FaderPaletteDelta[c].g;
- FaderPalette[c].b += FaderPaletteDelta[c].b;
-
- /* Get the integer values */
- r = FaderPalette[c].r >> 8;
- g = FaderPalette[c].g >> 8;
- b = FaderPalette[c].b >> 8;
-
- /* Don't go too far */
- if (r > Palette[c].rgbRed)
- r = Palette[c].rgbRed;
- if (g > Palette[c].rgbGreen)
- g = Palette[c].rgbGreen;
- if (b > Palette[c].rgbBlue)
- b = Palette[c].rgbBlue;
-
- /* Update the hardware */
- InbvSetColor(c, r, g, b);
- }
- Interval.QuadPart = -PALETTE_FADE_TIME;
- KeDelayExecutionThread(KernelMode, FALSE, &Interval);
- }
-}
-
-static VOID STDCALL
-InbvBitmapThreadMain(PVOID Ignored)
-{
- if (InbvFindBootimage())
- {
- InbvDisplayCompressedBitmap();
- InbvFadeUpPalette();
- }
- else
- {
- DbgPrint("Warning: Cannot find boot image\n");
- }
-
- BitmapIsDrawn = TRUE;
- for(;;)
- {
- if (BitmapThreadShouldTerminate)
- {
- DPRINT("Terminating\n");
- return;
- }
- NtYieldExecution();
- }
-}
-
-
-BOOLEAN
-STDCALL
-VidIsBootDriverInstalled(VOID)
-{
- return InGraphicsMode;
-}
-
-
-BOOLEAN
-STDCALL
-VidInitialize(VOID)
-{
- NTSTATUS Status;
-
- if (!VideoAddressSpaceInitialized)
- {
- InbvInitializeVideoAddressSpace();
- }
-
- InbvInitVGAMode();
-
- InGraphicsMode = TRUE;
-
- BitmapIsDrawn = FALSE;
- BitmapThreadShouldTerminate = FALSE;
-
- Status = PsCreateSystemThread(&BitmapThreadHandle,
- THREAD_ALL_ACCESS,
- NULL,
- NULL,
- &BitmapThreadId,
- InbvBitmapThreadMain,
- NULL);
- if (!NT_SUCCESS(Status))
- {
- return FALSE;
- }
-
- return TRUE;
-}
projects / reactos.git / commitdiff
