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utils/hlfaceposer/mxbitmaptools.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "mxbitmaptools.h"
+#include <mxtk/mx.h>
+#include "hlfaceposer.h"
+#include "filesystem.h"
+
+bool LoadBitmapFromFile( const char *relative, mxbitmapdata_t& bitmap )
+{
+
+	bitmap.valid = false;
+	bitmap.image = NULL;
+	bitmap.width = -1;
+	bitmap.height = -1;
+
+	// Draw
+	HDC dc = GetDC( NULL );
+	if ( !dc )
+	{
+		return false;
+	}
+
+	int width, height;
+
+	width	= 100;
+	height	= 100;
+
+	HBITMAP  bmNewImage = (HBITMAP)0;
+
+	HBITMAP bm, oldbm;
+	bm = CreateCompatibleBitmap( dc, width, height );
+	if ( bm )
+	{
+		oldbm = (HBITMAP)SelectObject( dc, bm );
+		
+		HDC memdc = CreateCompatibleDC( dc );
+		if ( memdc )
+		{
+			char filename[ 512 ];
+			filesystem->RelativePathToFullPath( relative, "MOD", filename, sizeof( filename ) );
+
+			bmNewImage = (HBITMAP)LoadImage( 
+				(HINSTANCE) GetModuleHandle(0), filename,
+				IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE | LR_DEFAULTSIZE );
+
+			if ( !bmNewImage )
+			{
+				filesystem->RelativePathToFullPath( relative, "GAME", filename, sizeof( filename ) );
+
+				bmNewImage = (HBITMAP)LoadImage( 
+					(HINSTANCE) GetModuleHandle(0), filename,
+					IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE | LR_DEFAULTSIZE );
+			}
+			
+			if ( bmNewImage )
+			{
+				HBITMAP oldmembm = (HBITMAP)SelectObject( memdc, bmNewImage );
+				
+				BITMAPINFO bmi;
+				memset( &bmi, 0, sizeof( bmi ) );
+				bmi.bmiHeader.biSize = sizeof( BITMAPINFOHEADER );
+				
+				if ( GetDIBits( memdc, bmNewImage, 0, 0, NULL, &bmi, DIB_RGB_COLORS ) )
+				{
+					bitmap.width = bmi.bmiHeader.biWidth;
+					bitmap.height = bmi.bmiHeader.biHeight;
+				}
+				
+				SelectObject( memdc, oldmembm );
+			}
+			
+			DeleteDC( memdc );
+		}
+		
+		SelectObject( dc, oldbm );
+		DeleteObject( bm );
+	}
+	
+	ReleaseDC( NULL, dc );
+
+	if ( bmNewImage && 
+		bitmap.width != -1 && 
+		bitmap.height != -1 )
+	{
+		bitmap.image = bmNewImage;
+		bitmap.valid = true;
+	}
+
+	return bitmap.valid;
+}
+
+void DrawBitmapToWindow( mxWindow *wnd, int x, int y, int w, int h, mxbitmapdata_t& bitmap )
+{
+	if ( !bitmap.valid )
+		return;
+
+	// Draw
+	HDC dc = GetDC( (HWND) wnd->getHandle() );
+	if ( !dc )
+		return;
+
+	HBITMAP bm, oldbm;
+	bm = CreateCompatibleBitmap( dc, w, h );
+	oldbm = (HBITMAP)SelectObject( dc, bm );
+
+	HDC memdc = CreateCompatibleDC( dc );
+	HBITMAP oldmembm = (HBITMAP)SelectObject( memdc, bitmap.image );
+
+	int oldmode = SetStretchBltMode( dc, COLORONCOLOR );
+
+	StretchBlt( dc, x, y, w, h, memdc, 0, 0, bitmap.width, bitmap.height, SRCCOPY );
+
+	SetStretchBltMode( dc, oldmode );
+
+	SelectObject( memdc, oldmembm );
+	DeleteDC( memdc );
+
+	SelectObject( dc, oldbm );
+	DeleteObject( bm );
+	ReleaseDC( (HWND) wnd->getHandle(), dc );
+
+	RECT rc;
+	rc.left = x;
+	rc.right = x + w;
+	rc.top = y;
+	rc.bottom = y + h;
+
+	ValidateRect( (HWND)wnd->getHandle(), &rc );
+}
+
+void DrawBitmapToDC( void *hdc, int x, int y, int w, int h, mxbitmapdata_t& bitmap )
+{
+	if ( !bitmap.valid )
+		return;
+
+	HDC dc = (HDC)hdc;
+
+	HDC memdc = CreateCompatibleDC( dc );
+	HBITMAP oldmembm = (HBITMAP)SelectObject( memdc, bitmap.image );
+
+	int oldmode = SetStretchBltMode( dc, COLORONCOLOR );
+
+	StretchBlt( dc, x, y, w, h, memdc, 0, 0, bitmap.width, bitmap.height, SRCCOPY );
+
+	SetStretchBltMode( dc, oldmode );
+
+	SelectObject( memdc, oldmembm );
+	DeleteDC( memdc );
+}