bitmap.c File Reference

#include "precomp.h"

Go to the source code of this file.

Functions
NTSTATUS	CreateConsoleBitmap (IN OUT PCONSOLE_GRAPHICS_BUFFER_INFO GraphicsInfo, IN OUT PSCREEN_INFORMATION ScreenInfo, OUT PVOID *lpBitmap, OUT HANDLE *hMutex)
ULONG	SrvInvalidateBitMapRect (IN OUT PCSR_API_MSG m, IN OUT PCSR_REPLY_STATUS ReplyStatus)
NTSTATUS	WriteRegionToScreenBitMap (IN PSCREEN_INFORMATION ScreenInfo, IN PSMALL_RECT Region)
VOID	FreeConsoleBitmap (IN PSCREEN_INFORMATION ScreenInfo)

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Function Documentation

NTSTATUS CreateConsoleBitmap (  IN OUT PCONSOLE_GRAPHICS_BUFFER_INFO  GraphicsInfo, IN OUT PSCREEN_INFORMATION  ScreenInfo, OUT PVOID *  lpBitmap, OUT HANDLE *  hMutex )

Definition at line 27 of file w32/ntcon/server/bitmap.c. References ASSERT, BMP_TAG, CONSOLE_CLIENTPROCESSHANDLE, ConsoleHeapAlloc, ConsoleHeapFree, DbgPrint, FALSE, L, MAKE_TAG, MapHandle(), NT_SUCCESS, NtClose(), NtCreateMutant(), NtCreateSection(), NtMapViewOfSection(), NTSTATUS(), NtUnmapViewOfSection(), NULL, SHORT, and Status. Referenced by CreateScreenBuffer(). { NTSTATUS Status; LARGE_INTEGER MaximumSize; SIZE_T ViewSize; // // adjust bitmap info // if (GraphicsInfo->lpBitMapInfo->bmiHeader.biHeight > 0) { #if DBG DbgPrint("*************** Negating biHeight\n"); #endif GraphicsInfo->lpBitMapInfo->bmiHeader.biHeight = -GraphicsInfo->lpBitMapInfo->bmiHeader.biHeight; } if (GraphicsInfo->lpBitMapInfo->bmiHeader.biCompression != BI_RGB) { #if DBG DbgPrint("*************** setting Compression to BI_RGB)\n"); #endif GraphicsInfo->lpBitMapInfo->bmiHeader.biCompression = BI_RGB; } // // allocate screeninfo buffer data and copy it // ScreenInfo->BufferInfo.GraphicsInfo.lpBitMapInfo = (LPBITMAPINFO)ConsoleHeapAlloc(MAKE_TAG( BMP_TAG ),GraphicsInfo->dwBitMapInfoLength); if (ScreenInfo->BufferInfo.GraphicsInfo.lpBitMapInfo == NULL) { return STATUS_NO_MEMORY; } ScreenInfo->BufferInfo.GraphicsInfo.BitMapInfoLength = GraphicsInfo->dwBitMapInfoLength; RtlCopyMemory(ScreenInfo->BufferInfo.GraphicsInfo.lpBitMapInfo, GraphicsInfo->lpBitMapInfo, GraphicsInfo->dwBitMapInfoLength ); ASSERT((GraphicsInfo->lpBitMapInfo->bmiHeader.biWidth * -GraphicsInfo->lpBitMapInfo->bmiHeader.biHeight / 8 * GraphicsInfo->lpBitMapInfo->bmiHeader.biBitCount) == (LONG)GraphicsInfo->lpBitMapInfo->bmiHeader.biSizeImage); // // create bitmap section // MaximumSize.QuadPart = GraphicsInfo->lpBitMapInfo->bmiHeader.biSizeImage; Status = NtCreateSection(&ScreenInfo->BufferInfo.GraphicsInfo.hSection, SECTION_ALL_ACCESS, NULL, &MaximumSize, PAGE_READWRITE, SEC_COMMIT, NULL ); if (!NT_SUCCESS(Status)) { ConsoleHeapFree(ScreenInfo->BufferInfo.GraphicsInfo.lpBitMapInfo); return Status; } // // map server view of section // ViewSize = GraphicsInfo->lpBitMapInfo->bmiHeader.biSizeImage; ScreenInfo->BufferInfo.GraphicsInfo.BitMap = 0; Status = NtMapViewOfSection(ScreenInfo->BufferInfo.GraphicsInfo.hSection, NtCurrentProcess(), &ScreenInfo->BufferInfo.GraphicsInfo.BitMap, 0L, GraphicsInfo->lpBitMapInfo->bmiHeader.biSizeImage, NULL, &ViewSize, ViewUnmap, 0L, PAGE_READWRITE ); if (!NT_SUCCESS(Status)) { ConsoleHeapFree(ScreenInfo->BufferInfo.GraphicsInfo.lpBitMapInfo); NtClose(ScreenInfo->BufferInfo.GraphicsInfo.hSection); return Status; } // // map client view of section // ViewSize = GraphicsInfo->lpBitMapInfo->bmiHeader.biSizeImage; *lpBitmap = 0; Status = NtMapViewOfSection(ScreenInfo->BufferInfo.GraphicsInfo.hSection, CONSOLE_CLIENTPROCESSHANDLE(), lpBitmap, 0L, GraphicsInfo->lpBitMapInfo->bmiHeader.biSizeImage, NULL, &ViewSize, ViewUnmap, 0L, PAGE_READWRITE ); if (!NT_SUCCESS(Status)) { ConsoleHeapFree(ScreenInfo->BufferInfo.GraphicsInfo.lpBitMapInfo); NtUnmapViewOfSection(NtCurrentProcess(),ScreenInfo->BufferInfo.GraphicsInfo.BitMap); NtClose(ScreenInfo->BufferInfo.GraphicsInfo.hSection); return Status; } ScreenInfo->BufferInfo.GraphicsInfo.ClientProcess = CONSOLE_CLIENTPROCESSHANDLE(); ScreenInfo->BufferInfo.GraphicsInfo.ClientBitMap = *lpBitmap; // // create mutex to serialize access to bitmap, then map handle to mutex to client side // NtCreateMutant(&ScreenInfo->BufferInfo.GraphicsInfo.hMutex, MUTANT_ALL_ACCESS, NULL, FALSE); MapHandle(CONSOLE_CLIENTPROCESSHANDLE(), ScreenInfo->BufferInfo.GraphicsInfo.hMutex, hMutex ); ScreenInfo->BufferInfo.GraphicsInfo.dwUsage = GraphicsInfo->dwUsage; ScreenInfo->ScreenBufferSize.X = (WORD)GraphicsInfo->lpBitMapInfo->bmiHeader.biWidth; ScreenInfo->ScreenBufferSize.Y = (WORD)-GraphicsInfo->lpBitMapInfo->bmiHeader.biHeight; ScreenInfo->Window.Left = 0; ScreenInfo->Window.Top = 0; ScreenInfo->Window.Right = (SHORT)(ScreenInfo->Window.Left+ScreenInfo->ScreenBufferSize.X-1); ScreenInfo->Window.Bottom = (SHORT)(ScreenInfo->Window.Top+ScreenInfo->ScreenBufferSize.Y-1); return STATUS_SUCCESS; }

VOID FreeConsoleBitmap (  IN PSCREEN_INFORMATION  ScreenInfo  )

Definition at line 353 of file w32/ntcon/server/bitmap.c. References ConsoleHeapFree, NtClose(), and NtUnmapViewOfSection(). Referenced by FreeScreenBuffer(). { NtUnmapViewOfSection(NtCurrentProcess(), ScreenInfo->BufferInfo.GraphicsInfo.BitMap); NtUnmapViewOfSection(ScreenInfo->BufferInfo.GraphicsInfo.ClientProcess, ScreenInfo->BufferInfo.GraphicsInfo.ClientBitMap); NtClose(ScreenInfo->BufferInfo.GraphicsInfo.hSection); NtClose(ScreenInfo->BufferInfo.GraphicsInfo.hMutex); ConsoleHeapFree(ScreenInfo->BufferInfo.GraphicsInfo.lpBitMapInfo); }

ULONG SrvInvalidateBitMapRect (  IN OUT PCSR_API_MSG  m, IN OUT PCSR_REPLY_STATUS  ReplyStatus )

Definition at line 168 of file w32/ntcon/server/bitmap.c. References ApiPreamble(), ASSERT, _HANDLE_DATA::Buffer, CONSOLE_GRAPHICS_OUTPUT_HANDLE, CONSOLE_IS_DBCS_ENABLED, CONSOLE_OEMFONT_DISPLAY, CONSOLE_OUTPUT_HANDLE, CONSOLE_PERPROCESSDATA, _CONSOLE_INVALIDATERECT_MSG::ConsoleHandle, _CONSOLE_INFORMATION::CP, _CONSOLE_INFORMATION::CurrentScreenBuffer, DereferenceIoHandle(), _SCREEN_INFORMATION::Flags, _CONSOLE_INFORMATION::FullScreenFlags, _HANDLE_DATA::HandleType, NT_SUCCESS, NTSTATUS(), NULL, _CONSOLE_INFORMATION::OutputCP, _CONSOLE_INVALIDATERECT_MSG::OutputHandle, PBYTE, PCONSOLE_INVALIDATERECT_MSG, _CONSOLE_INVALIDATERECT_MSG::Rect, Status, UINT, UnlockConsole(), USACP, _CONSOLE_INFORMATION::VDMBuffer, _CONSOLE_INFORMATION::VDMBufferSize, WINDOWSCP, WriteRectToScreenBuffer, and WriteToScreen. : This routine is called to indicate that the application has modified a region in the bitmap. We update the region to the screen. Arguments: m - message containing api parameters ReplyStatus - Indicates whether to reply to the dll port. Return Value: --*/ { PCONSOLE_INVALIDATERECT_MSG a = (PCONSOLE_INVALIDATERECT_MSG)&m->u.ApiMessageData; PCONSOLE_INFORMATION Console; PHANDLE_DATA HandleData; NTSTATUS Status; UINT Codepage; Status = ApiPreamble(a->ConsoleHandle, &Console ); if (!NT_SUCCESS(Status)) { return Status; } Status = DereferenceIoHandle(CONSOLE_PERPROCESSDATA(), a->OutputHandle, CONSOLE_OUTPUT_HANDLE | CONSOLE_GRAPHICS_OUTPUT_HANDLE, GENERIC_WRITE, &HandleData ); if (!NT_SUCCESS(Status)) { UnlockConsole(Console); return((ULONG) Status); } if (HandleData->HandleType & CONSOLE_OUTPUT_HANDLE) { //ASSERT(Console->Flags & CONSOLE_VDM_REGISTERED); //ASSERT(!(Console->FullScreenFlags & CONSOLE_FULLSCREEN_HARDWARE)); ASSERT(Console->VDMBuffer != NULL); if (Console->VDMBuffer != NULL) { //ASSERT(HandleData->Buffer.ScreenBuffer->ScreenBufferSize.X <= Console->VDMBufferSize.X); //ASSERT(HandleData->Buffer.ScreenBuffer->ScreenBufferSize.Y <= Console->VDMBufferSize.Y); if (HandleData->Buffer.ScreenBuffer->ScreenBufferSize.X <= Console->VDMBufferSize.X && HandleData->Buffer.ScreenBuffer->ScreenBufferSize.Y <= Console->VDMBufferSize.Y) { COORD TargetPoint; TargetPoint.X = a->Rect.Left; TargetPoint.Y = a->Rect.Top; // VDM can sometimes get out of sync with window size //ASSERT(a->Rect.Left >= 0); //ASSERT(a->Rect.Top >= 0); //ASSERT(a->Rect.Right < HandleData->Buffer.ScreenBuffer->ScreenBufferSize.X); //ASSERT(a->Rect.Bottom < HandleData->Buffer.ScreenBuffer->ScreenBufferSize.Y); //ASSERT(a->Rect.Left <= a->Rect.Right); //ASSERT(a->Rect.Top <= a->Rect.Bottom); if ((a->Rect.Left >= 0) && (a->Rect.Top >= 0) && (a->Rect.Right < HandleData->Buffer.ScreenBuffer->ScreenBufferSize.X) && (a->Rect.Bottom < HandleData->Buffer.ScreenBuffer->ScreenBufferSize.Y) && (a->Rect.Left <= a->Rect.Right) && (a->Rect.Top <= a->Rect.Bottom) ) { if ((Console->CurrentScreenBuffer->Flags & CONSOLE_OEMFONT_DISPLAY) && ((Console->FullScreenFlags & CONSOLE_FULLSCREEN) == 0)) { #if defined(FE_SB) if (CONSOLE_IS_DBCS_ENABLED() && Console->OutputCP != WINDOWSCP ) { Codepage = USACP; } else #endif // we want UnicodeOem characters Codepage = WINDOWSCP; } else { #if defined(FE_SB) if (CONSOLE_IS_DBCS_ENABLED()) { Codepage = Console->OutputCP; } else #endif // we want real Unicode characters Codepage = Console->CP; } WriteRectToScreenBuffer((PBYTE)Console->VDMBuffer, Console->VDMBufferSize, &a->Rect, HandleData->Buffer.ScreenBuffer, TargetPoint, Codepage); WriteToScreen(HandleData->Buffer.ScreenBuffer,&a->Rect); } else { Status = STATUS_INVALID_PARAMETER; } } else { Status = STATUS_INVALID_PARAMETER; } } else { Status = STATUS_INVALID_PARAMETER; } } else { // // write data to screen // WriteToScreen(HandleData->Buffer.ScreenBuffer,&a->Rect); } UnlockConsole(Console); return Status; UNREFERENCED_PARAMETER(ReplyStatus); }

NTSTATUS WriteRegionToScreenBitMap (  IN PSCREEN_INFORMATION  ScreenInfo, IN PSMALL_RECT  Region )

Definition at line 293 of file w32/ntcon/server/bitmap.c. References DWORD, FALSE, InvertSelection(), NtReleaseMutant(), NtWaitForSingleObject(), NULL, and TRUE. Referenced by ConsoleWindowProc(), and WWSB_WriteToScreen(). { DWORD NumScanLines; int Height; // // if we have a selection, turn it off. // InvertSelection(ScreenInfo->Console,TRUE); NtWaitForSingleObject(ScreenInfo->BufferInfo.GraphicsInfo.hMutex, FALSE, NULL); // The origin of (xSrc, ySrc) passed to SetDIBitsToDevice is located // at the DIB's bottom-left corner no matter if the DIB is // a top-down or bottom-up. Thus, if the DIB is a top-down, we have // to translate ySrc accordingly: // if (height < 0) { // top-down // ySrc = abs(height) - rect.Bottom -1; // // else // ySrc = rect.Bottom; // Height = ScreenInfo->BufferInfo.GraphicsInfo.lpBitMapInfo->bmiHeader.biHeight; NumScanLines = SetDIBitsToDevice(ScreenInfo->Console->hDC, Region->Left - ScreenInfo->Window.Left, Region->Top - ScreenInfo->Window.Top, Region->Right - Region->Left + 1, Region->Bottom - Region->Top + 1, Region->Left, Height < 0 ? -Height - Region->Bottom - 1 : Region->Bottom, 0, ScreenInfo->ScreenBufferSize.Y, ScreenInfo->BufferInfo.GraphicsInfo.BitMap, ScreenInfo->BufferInfo.GraphicsInfo.lpBitMapInfo, ScreenInfo->BufferInfo.GraphicsInfo.dwUsage ); NtReleaseMutant(ScreenInfo->BufferInfo.GraphicsInfo.hMutex, NULL); // // if we have a selection, turn it on. // InvertSelection(ScreenInfo->Console,FALSE); if (NumScanLines == 0) { return STATUS_UNSUCCESSFUL; } return STATUS_SUCCESS; }

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