mirror of
https://github.com/reactos/reactos.git
synced 2024-09-06 19:02:32 +00:00
![Hermès Bélusca-Maïto](/assets/img/avatar_default.png)
- inbv.c now only contains the Inbv-specific API and nothing else. - It will make easier for people to write their own boot themes & animations, by just copying/adapting the bootanim.c file (and the resources). - Add SAL annotations. - All INBV progress bar functions (except for InbvIndicateProgress()) should not be INIT-only functions, since they can be (not yet in ROS) used at later times -- namely, for feedback during hibernation.
777 lines
19 KiB
C
777 lines
19 KiB
C
/*
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* PROJECT: ReactOS Kernel
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* LICENSE: BSD - See COPYING.ARM in the top level directory
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* PURPOSE: Boot Video Driver support
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* COPYRIGHT: Copyright 2007 Alex Ionescu (alex.ionescu@reactos.org)
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* Copyright 2010 Aleksey Bragin (aleksey@reactos.org)
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* Copyright 2015-2022 Hermès Bélusca-Maïto
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*/
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/* INCLUDES ******************************************************************/
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#include <ntoskrnl.h>
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#include "inbv/logo.h"
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/* GLOBALS *******************************************************************/
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/*
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* Enable this define if you want Inbv to use coloured headless mode.
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*/
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// #define INBV_HEADLESS_COLORS
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typedef struct _INBV_PROGRESS_STATE
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{
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ULONG Floor;
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ULONG Ceiling;
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ULONG Bias;
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} INBV_PROGRESS_STATE;
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typedef struct _BT_PROGRESS_INDICATOR
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{
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ULONG Count;
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ULONG Expected;
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ULONG Percentage;
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} BT_PROGRESS_INDICATOR, *PBT_PROGRESS_INDICATOR;
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static KSPIN_LOCK BootDriverLock;
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static KIRQL InbvOldIrql;
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static INBV_DISPLAY_STATE InbvDisplayState = INBV_DISPLAY_STATE_DISABLED;
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BOOLEAN InbvBootDriverInstalled = FALSE;
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static INBV_RESET_DISPLAY_PARAMETERS InbvResetDisplayParameters = NULL;
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static BOOLEAN InbvDisplayDebugStrings = FALSE;
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static INBV_DISPLAY_STRING_FILTER InbvDisplayFilter = NULL;
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ULONG ProgressBarLeft = 0, ProgressBarTop = 0;
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BOOLEAN ShowProgressBar = FALSE;
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static INBV_PROGRESS_STATE InbvProgressState;
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static BT_PROGRESS_INDICATOR InbvProgressIndicator = {0, 25, 0};
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static ULONG ResourceCount = 0;
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static PUCHAR ResourceList[1 + IDB_MAX_RESOURCE]; // First entry == NULL, followed by 'ResourceCount' entries.
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/*
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* Headless terminal text colors
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*/
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#ifdef INBV_HEADLESS_COLORS
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// Conversion table CGA to ANSI color index
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static const UCHAR CGA_TO_ANSI_COLOR_TABLE[16] =
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{
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0, // Black
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4, // Blue
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2, // Green
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6, // Cyan
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1, // Red
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5, // Magenta
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3, // Brown/Yellow
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7, // Grey/White
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60, // Bright Black
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64, // Bright Blue
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62, // Bright Green
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66, // Bright Cyan
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61, // Bright Red
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65, // Bright Magenta
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63, // Bright Yellow
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67 // Bright Grey (White)
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};
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#define CGA_TO_ANSI_COLOR(CgaColor) \
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CGA_TO_ANSI_COLOR_TABLE[CgaColor & 0x0F]
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#endif
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// Default colors: text in white, background in black
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static ULONG InbvTerminalTextColor = 37;
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static ULONG InbvTerminalBkgdColor = 40;
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/* FUNCTIONS *****************************************************************/
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CODE_SEG("INIT")
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static
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PVOID
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FindBitmapResource(
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_In_ PLOADER_PARAMETER_BLOCK LoaderBlock,
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_In_ ULONG ResourceId)
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{
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UNICODE_STRING UpString = RTL_CONSTANT_STRING(L"ntoskrnl.exe");
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UNICODE_STRING MpString = RTL_CONSTANT_STRING(L"ntkrnlmp.exe");
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PLIST_ENTRY NextEntry, ListHead;
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PLDR_DATA_TABLE_ENTRY LdrEntry;
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PIMAGE_RESOURCE_DATA_ENTRY ResourceDataEntry;
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LDR_RESOURCE_INFO ResourceInfo;
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NTSTATUS Status;
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PVOID Data = NULL;
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/* Loop the driver list */
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ListHead = &LoaderBlock->LoadOrderListHead;
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NextEntry = ListHead->Flink;
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while (NextEntry != ListHead)
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{
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/* Get the entry */
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LdrEntry = CONTAINING_RECORD(NextEntry,
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LDR_DATA_TABLE_ENTRY,
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InLoadOrderLinks);
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/* Check for a match */
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if (RtlEqualUnicodeString(&LdrEntry->BaseDllName, &UpString, TRUE) ||
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RtlEqualUnicodeString(&LdrEntry->BaseDllName, &MpString, TRUE))
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{
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/* Break out */
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break;
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}
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}
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/* Check if we found it */
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if (NextEntry != ListHead)
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{
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/* Try to find the resource */
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ResourceInfo.Type = 2; // RT_BITMAP;
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ResourceInfo.Name = ResourceId;
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ResourceInfo.Language = 0;
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Status = LdrFindResource_U(LdrEntry->DllBase,
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&ResourceInfo,
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RESOURCE_DATA_LEVEL,
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&ResourceDataEntry);
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if (NT_SUCCESS(Status))
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{
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/* Access the resource */
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ULONG Size = 0;
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Status = LdrAccessResource(LdrEntry->DllBase,
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ResourceDataEntry,
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&Data,
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&Size);
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if ((Data) && (ResourceId < 3))
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{
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KiBugCheckData[4] ^= RtlComputeCrc32(0, Data, Size);
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}
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if (!NT_SUCCESS(Status)) Data = NULL;
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}
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}
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/* Return the pointer */
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return Data;
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}
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PUCHAR
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NTAPI
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InbvGetResourceAddress(
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_In_ ULONG ResourceNumber)
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{
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/* Validate the resource number */
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if (ResourceNumber > ResourceCount) return NULL;
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/* Return the address */
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return ResourceList[ResourceNumber];
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}
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CODE_SEG("INIT")
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BOOLEAN
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NTAPI
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InbvDriverInitialize(
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_In_ PLOADER_PARAMETER_BLOCK LoaderBlock,
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_In_ ULONG Count)
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{
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PCHAR CommandLine;
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BOOLEAN ResetMode = FALSE; // By default do not reset the video mode
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ULONG i;
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/* Quit if we're already installed */
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if (InbvBootDriverInstalled) return TRUE;
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/* Initialize the lock and check the current display state */
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KeInitializeSpinLock(&BootDriverLock);
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if (InbvDisplayState == INBV_DISPLAY_STATE_OWNED)
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{
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/* Reset the video mode in case we do not have a custom boot logo */
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CommandLine = (LoaderBlock->LoadOptions ? _strupr(LoaderBlock->LoadOptions) : NULL);
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ResetMode = (CommandLine == NULL) || (strstr(CommandLine, "BOOTLOGO") == NULL);
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}
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/* Initialize the video */
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InbvBootDriverInstalled = VidInitialize(ResetMode);
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if (InbvBootDriverInstalled)
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{
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/* Find bitmap resources in the kernel */
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ResourceCount = min(Count, RTL_NUMBER_OF(ResourceList) - 1);
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for (i = 1; i <= ResourceCount; i++)
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{
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/* Do the lookup */
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ResourceList[i] = FindBitmapResource(LoaderBlock, i);
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}
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/* Set the progress bar ranges */
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InbvSetProgressBarSubset(0, 100);
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// BootAnimInitialize(LoaderBlock, Count);
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}
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/* Return install state */
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return InbvBootDriverInstalled;
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}
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VOID
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NTAPI
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InbvAcquireLock(VOID)
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{
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KIRQL OldIrql;
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/* Check if we're at dispatch level or lower */
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OldIrql = KeGetCurrentIrql();
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if (OldIrql <= DISPATCH_LEVEL)
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{
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/* Loop until the lock is free */
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while (!KeTestSpinLock(&BootDriverLock));
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/* Raise IRQL to dispatch level */
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KeRaiseIrql(DISPATCH_LEVEL, &OldIrql);
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}
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/* Acquire the lock */
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KiAcquireSpinLock(&BootDriverLock);
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InbvOldIrql = OldIrql;
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}
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VOID
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NTAPI
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InbvReleaseLock(VOID)
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{
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KIRQL OldIrql;
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/* Capture the old IRQL */
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OldIrql = InbvOldIrql;
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/* Release the driver lock */
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KiReleaseSpinLock(&BootDriverLock);
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/* If we were at dispatch level or lower, restore the old IRQL */
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if (InbvOldIrql <= DISPATCH_LEVEL) KeLowerIrql(OldIrql);
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}
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VOID
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NTAPI
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InbvEnableBootDriver(
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_In_ BOOLEAN Enable)
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{
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/* Check if we're installed */
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if (InbvBootDriverInstalled)
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{
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/* Check for lost state */
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if (InbvDisplayState >= INBV_DISPLAY_STATE_LOST) return;
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/* Acquire the lock */
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InbvAcquireLock();
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/* Cleanup the screen if we own it */
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if (InbvDisplayState == INBV_DISPLAY_STATE_OWNED) VidCleanUp();
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/* Set the new display state */
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InbvDisplayState = Enable ? INBV_DISPLAY_STATE_OWNED :
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INBV_DISPLAY_STATE_DISABLED;
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/* Release the lock */
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InbvReleaseLock();
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}
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else
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{
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/* Set the new display state */
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InbvDisplayState = Enable ? INBV_DISPLAY_STATE_OWNED :
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INBV_DISPLAY_STATE_DISABLED;
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}
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}
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VOID
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NTAPI
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InbvAcquireDisplayOwnership(VOID)
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{
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/* Check if we have a callback and we're just acquiring it now */
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if ((InbvResetDisplayParameters) &&
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(InbvDisplayState == INBV_DISPLAY_STATE_LOST))
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{
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/* Call the callback */
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InbvResetDisplayParameters(80, 50);
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}
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/* Acquire the display */
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InbvDisplayState = INBV_DISPLAY_STATE_OWNED;
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}
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VOID
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NTAPI
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InbvSetDisplayOwnership(
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_In_ BOOLEAN DisplayOwned)
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{
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/* Set the new display state */
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InbvDisplayState = DisplayOwned ? INBV_DISPLAY_STATE_OWNED :
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INBV_DISPLAY_STATE_LOST;
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}
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BOOLEAN
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NTAPI
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InbvCheckDisplayOwnership(VOID)
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{
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/* Return if we own it or not */
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return InbvDisplayState != INBV_DISPLAY_STATE_LOST;
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}
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INBV_DISPLAY_STATE
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NTAPI
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InbvGetDisplayState(VOID)
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{
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/* Return the actual state */
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return InbvDisplayState;
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}
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BOOLEAN
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NTAPI
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InbvDisplayString(
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_In_ PCHAR String)
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{
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/* Make sure we own the display */
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if (InbvDisplayState == INBV_DISPLAY_STATE_OWNED)
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{
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/* If we're not allowed, return success anyway */
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if (!InbvDisplayDebugStrings) return TRUE;
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/* Check if a filter is installed */
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if (InbvDisplayFilter) InbvDisplayFilter(&String);
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/* Acquire the lock */
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InbvAcquireLock();
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/* Make sure we're installed and display the string */
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if (InbvBootDriverInstalled) VidDisplayString((PUCHAR)String);
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/* Print the string on the EMS port */
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HeadlessDispatch(HeadlessCmdPutString,
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String,
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strlen(String) + sizeof(ANSI_NULL),
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NULL,
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NULL);
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/* Release the lock */
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InbvReleaseLock();
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/* All done */
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return TRUE;
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}
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/* We don't own it, fail */
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return FALSE;
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}
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BOOLEAN
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NTAPI
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InbvEnableDisplayString(
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_In_ BOOLEAN Enable)
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{
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BOOLEAN OldSetting;
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/* Get the old setting */
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OldSetting = InbvDisplayDebugStrings;
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/* Update it */
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InbvDisplayDebugStrings = Enable;
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/* Return the old setting */
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return OldSetting;
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}
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VOID
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NTAPI
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InbvInstallDisplayStringFilter(
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_In_ INBV_DISPLAY_STRING_FILTER DisplayFilter)
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{
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/* Save the filter */
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InbvDisplayFilter = DisplayFilter;
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}
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BOOLEAN
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NTAPI
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InbvIsBootDriverInstalled(VOID)
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{
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/* Return driver state */
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return InbvBootDriverInstalled;
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}
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VOID
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NTAPI
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InbvNotifyDisplayOwnershipLost(
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_In_ INBV_RESET_DISPLAY_PARAMETERS Callback)
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{
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/* Check if we're installed */
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if (InbvBootDriverInstalled)
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{
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/* Acquire the lock and cleanup if we own the screen */
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InbvAcquireLock();
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if (InbvDisplayState != INBV_DISPLAY_STATE_LOST) VidCleanUp();
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/* Set the reset callback and display state */
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InbvResetDisplayParameters = Callback;
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InbvDisplayState = INBV_DISPLAY_STATE_LOST;
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/* Release the lock */
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InbvReleaseLock();
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}
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else
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{
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/* Set the reset callback and display state */
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InbvResetDisplayParameters = Callback;
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InbvDisplayState = INBV_DISPLAY_STATE_LOST;
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}
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}
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BOOLEAN
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NTAPI
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InbvResetDisplay(VOID)
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{
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/* Check if we're installed and we own it */
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if (InbvBootDriverInstalled &&
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(InbvDisplayState == INBV_DISPLAY_STATE_OWNED))
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{
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/* Do the reset */
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VidResetDisplay(TRUE);
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return TRUE;
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}
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/* Nothing to reset */
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return FALSE;
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}
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VOID
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NTAPI
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InbvSetScrollRegion(
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_In_ ULONG Left,
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_In_ ULONG Top,
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_In_ ULONG Right,
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_In_ ULONG Bottom)
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{
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/* Just call bootvid */
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VidSetScrollRegion(Left, Top, Right, Bottom);
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}
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VOID
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NTAPI
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InbvSetTextColor(
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_In_ ULONG Color)
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{
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HEADLESS_CMD_SET_COLOR HeadlessSetColor;
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/* Set color for EMS port */
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#ifdef INBV_HEADLESS_COLORS
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InbvTerminalTextColor = 30 + CGA_TO_ANSI_COLOR(Color);
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#else
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InbvTerminalTextColor = 37;
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#endif
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HeadlessSetColor.TextColor = InbvTerminalTextColor;
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HeadlessSetColor.BkgdColor = InbvTerminalBkgdColor;
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HeadlessDispatch(HeadlessCmdSetColor,
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&HeadlessSetColor,
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sizeof(HeadlessSetColor),
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NULL,
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NULL);
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/* Update the text color */
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VidSetTextColor(Color);
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}
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VOID
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NTAPI
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InbvSolidColorFill(
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_In_ ULONG Left,
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_In_ ULONG Top,
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_In_ ULONG Right,
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_In_ ULONG Bottom,
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_In_ ULONG Color)
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{
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HEADLESS_CMD_SET_COLOR HeadlessSetColor;
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/* Make sure we own it */
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if (InbvDisplayState == INBV_DISPLAY_STATE_OWNED)
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{
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/* Acquire the lock */
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InbvAcquireLock();
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/* Check if we're installed */
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if (InbvBootDriverInstalled)
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{
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/* Call bootvid */
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VidSolidColorFill(Left, Top, Right, Bottom, (UCHAR)Color);
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}
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/* Set color for EMS port and clear display */
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#ifdef INBV_HEADLESS_COLORS
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InbvTerminalBkgdColor = 40 + CGA_TO_ANSI_COLOR(Color);
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#else
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InbvTerminalBkgdColor = 40;
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#endif
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HeadlessSetColor.TextColor = InbvTerminalTextColor;
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HeadlessSetColor.BkgdColor = InbvTerminalBkgdColor;
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HeadlessDispatch(HeadlessCmdSetColor,
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&HeadlessSetColor,
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sizeof(HeadlessSetColor),
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NULL,
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NULL);
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HeadlessDispatch(HeadlessCmdClearDisplay,
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NULL, 0,
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NULL, NULL);
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/* Release the lock */
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InbvReleaseLock();
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}
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}
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VOID
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NTAPI
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InbvBitBlt(
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_In_ PUCHAR Buffer,
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_In_ ULONG X,
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_In_ ULONG Y)
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{
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/* Check if we're installed and we own it */
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if (InbvBootDriverInstalled &&
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(InbvDisplayState == INBV_DISPLAY_STATE_OWNED))
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{
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/* Acquire the lock */
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InbvAcquireLock();
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/* Do the blit */
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VidBitBlt(Buffer, X, Y);
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/* Release the lock */
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InbvReleaseLock();
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}
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}
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VOID
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NTAPI
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InbvBufferToScreenBlt(
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_In_ PUCHAR Buffer,
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_In_ ULONG X,
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_In_ ULONG Y,
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_In_ ULONG Width,
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_In_ ULONG Height,
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_In_ ULONG Delta)
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{
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/* Check if we're installed and we own it */
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if (InbvBootDriverInstalled &&
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(InbvDisplayState == INBV_DISPLAY_STATE_OWNED))
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{
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/* Do the blit */
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VidBufferToScreenBlt(Buffer, X, Y, Width, Height, Delta);
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}
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}
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VOID
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NTAPI
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InbvScreenToBufferBlt(
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_Out_ PUCHAR Buffer,
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_In_ ULONG X,
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_In_ ULONG Y,
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_In_ ULONG Width,
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_In_ ULONG Height,
|
|
_In_ ULONG Delta)
|
|
{
|
|
/* Check if we're installed and we own it */
|
|
if (InbvBootDriverInstalled &&
|
|
(InbvDisplayState == INBV_DISPLAY_STATE_OWNED))
|
|
{
|
|
/* Do the blit */
|
|
VidScreenToBufferBlt(Buffer, X, Y, Width, Height, Delta);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
* Sets the screen coordinates of the loading progress bar and enable it.
|
|
*
|
|
* @param[in] Left
|
|
* @param[in] Top
|
|
* The left/top coordinates.
|
|
*
|
|
* @return None.
|
|
**/
|
|
VOID
|
|
NTAPI
|
|
InbvSetProgressBarCoordinates(
|
|
_In_ ULONG Left,
|
|
_In_ ULONG Top)
|
|
{
|
|
/* Update the coordinates */
|
|
ProgressBarLeft = Left;
|
|
ProgressBarTop = Top;
|
|
|
|
/* Enable the progress bar */
|
|
ShowProgressBar = TRUE;
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
* Gives some progress feedback, without specifying any explicit number
|
|
* of progress steps or percentage.
|
|
* The corresponding percentage is derived from the progress indicator's
|
|
* current count, capped to the number of expected calls to be made to
|
|
* this function (default: 25, see @b InbvProgressIndicator.Expected).
|
|
*
|
|
* @return None.
|
|
**/
|
|
CODE_SEG("INIT")
|
|
VOID
|
|
NTAPI
|
|
InbvIndicateProgress(VOID)
|
|
{
|
|
ULONG Percentage;
|
|
|
|
/* Increase progress */
|
|
InbvProgressIndicator.Count++;
|
|
|
|
/* Compute the new percentage - Don't go over 100% */
|
|
Percentage = 100 * InbvProgressIndicator.Count /
|
|
InbvProgressIndicator.Expected;
|
|
Percentage = min(Percentage, 99);
|
|
|
|
if (Percentage != InbvProgressIndicator.Percentage)
|
|
{
|
|
/* Percentage has changed, update the progress bar */
|
|
InbvProgressIndicator.Percentage = Percentage;
|
|
InbvUpdateProgressBar(Percentage);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
* Specifies a progress percentage sub-range.
|
|
* Further calls to InbvIndicateProgress() or InbvUpdateProgressBar()
|
|
* will update the progress percentage relative to this sub-range.
|
|
* In particular, the percentage provided to InbvUpdateProgressBar()
|
|
* is relative to this sub-range.
|
|
*
|
|
* @param[in] Floor
|
|
* The lower bound percentage of the sub-range (default: 0).
|
|
*
|
|
* @param[in] Ceiling
|
|
* The upper bound percentage of the sub-range (default: 100).
|
|
*
|
|
* @return None.
|
|
**/
|
|
VOID
|
|
NTAPI
|
|
InbvSetProgressBarSubset(
|
|
_In_ ULONG Floor,
|
|
_In_ ULONG Ceiling)
|
|
{
|
|
/* Sanity checks */
|
|
ASSERT(Floor < Ceiling);
|
|
ASSERT(Ceiling <= 100);
|
|
|
|
/* Update the progress bar state */
|
|
InbvProgressState.Floor = Floor * 100;
|
|
InbvProgressState.Ceiling = Ceiling * 100;
|
|
InbvProgressState.Bias = Ceiling - Floor;
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
* Updates the progress bar percentage, relative to the current
|
|
* percentage sub-range previously set by InbvSetProgressBarSubset().
|
|
*
|
|
* @param[in] Percentage
|
|
* The progress percentage, relative to the current sub-range.
|
|
*
|
|
* @return None.
|
|
**/
|
|
VOID
|
|
NTAPI
|
|
InbvUpdateProgressBar(
|
|
_In_ ULONG Percentage)
|
|
{
|
|
ULONG TotalProgress;
|
|
|
|
/* Make sure the progress bar is enabled, that we own and are installed */
|
|
if (ShowProgressBar &&
|
|
InbvBootDriverInstalled &&
|
|
(InbvDisplayState == INBV_DISPLAY_STATE_OWNED))
|
|
{
|
|
/* Compute the total progress and tick the progress bar */
|
|
TotalProgress = InbvProgressState.Floor + (Percentage * InbvProgressState.Bias);
|
|
// TotalProgress /= (100 * 100);
|
|
|
|
BootAnimTickProgressBar(TotalProgress);
|
|
}
|
|
}
|
|
|
|
NTSTATUS
|
|
NTAPI
|
|
NtDisplayString(IN PUNICODE_STRING DisplayString)
|
|
{
|
|
NTSTATUS Status;
|
|
UNICODE_STRING CapturedString;
|
|
OEM_STRING OemString;
|
|
ULONG OemLength;
|
|
KPROCESSOR_MODE PreviousMode;
|
|
|
|
PAGED_CODE();
|
|
|
|
PreviousMode = ExGetPreviousMode();
|
|
|
|
/* We require the TCB privilege */
|
|
if (!SeSinglePrivilegeCheck(SeTcbPrivilege, PreviousMode))
|
|
return STATUS_PRIVILEGE_NOT_HELD;
|
|
|
|
/* Capture the string */
|
|
Status = ProbeAndCaptureUnicodeString(&CapturedString, PreviousMode, DisplayString);
|
|
if (!NT_SUCCESS(Status))
|
|
return Status;
|
|
|
|
/* Do not display the string if it is empty */
|
|
if (CapturedString.Length == 0 || CapturedString.Buffer == NULL)
|
|
{
|
|
Status = STATUS_SUCCESS;
|
|
goto Quit;
|
|
}
|
|
|
|
/*
|
|
* Convert the string since INBV understands only ANSI/OEM. Allocate the
|
|
* string buffer in non-paged pool because INBV passes it down to BOOTVID.
|
|
* We cannot perform the allocation using RtlUnicodeStringToOemString()
|
|
* since its allocator uses PagedPool.
|
|
*/
|
|
OemLength = RtlUnicodeStringToOemSize(&CapturedString);
|
|
if (OemLength > MAXUSHORT)
|
|
{
|
|
Status = STATUS_BUFFER_OVERFLOW;
|
|
goto Quit;
|
|
}
|
|
RtlInitEmptyAnsiString((PANSI_STRING)&OemString, NULL, (USHORT)OemLength);
|
|
OemString.Buffer = ExAllocatePoolWithTag(NonPagedPool, OemLength, TAG_OSTR);
|
|
if (OemString.Buffer == NULL)
|
|
{
|
|
Status = STATUS_NO_MEMORY;
|
|
goto Quit;
|
|
}
|
|
Status = RtlUnicodeStringToOemString(&OemString, &CapturedString, FALSE);
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
ExFreePoolWithTag(OemString.Buffer, TAG_OSTR);
|
|
goto Quit;
|
|
}
|
|
|
|
/* Display the string */
|
|
InbvDisplayString(OemString.Buffer);
|
|
|
|
/* Free the string buffer */
|
|
ExFreePoolWithTag(OemString.Buffer, TAG_OSTR);
|
|
|
|
Status = STATUS_SUCCESS;
|
|
|
|
Quit:
|
|
/* Free the captured string */
|
|
ReleaseCapturedUnicodeString(&CapturedString, PreviousMode);
|
|
|
|
return Status;
|
|
}
|