X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d275c7eb8420c81e97a8b308c60c27d9856b58f9..2f60dbe2e95abe3016bab87439b9c6343735395f:/src/msw/bitmap.cpp diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp index a68e54fa7d..fceabb32c4 100644 --- a/src/msw/bitmap.cpp +++ b/src/msw/bitmap.cpp @@ -1,4 +1,4 @@ -///////////////////////////////////////////////////////////////////////////// +//////////////////////////////////////////////////////////////////////////// // Name: bitmap.cpp // Purpose: wxBitmap // Author: Julian Smart @@ -40,6 +40,8 @@ #include "wx/icon.h" #endif +//#include "device.h" + #include "wx/msw/private.h" #include "wx/log.h" @@ -79,6 +81,9 @@ wxBitmapRefData::wxBitmapRefData() m_numColors = 0; m_bitmapMask = NULL; m_hBitmap = (WXHBITMAP) NULL; +#if wxUSE_DIB_FOR_BITMAP + m_hFileMap = 0; +#endif } void wxBitmapRefData::Free() @@ -88,11 +93,22 @@ void wxBitmapRefData::Free() if ( m_hBitmap) { + // printf("About to delete bitmap %d\n", (int) (HBITMAP) m_hBitmap); +#if 1 if ( !::DeleteObject((HBITMAP)m_hBitmap) ) { wxLogLastError(wxT("DeleteObject(hbitmap)")); } +#endif + } + +#if wxUSE_DIB_FOR_BITMAP + if(m_hFileMap) + { + ::CloseHandle((void*)m_hFileMap); + m_hFileMap = 0; } +#endif delete m_bitmapMask; m_bitmapMask = NULL; @@ -107,8 +123,6 @@ void wxBitmap::Init() { // m_refData = NULL; done in the base class ctor - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); } #ifdef __WIN32__ @@ -144,6 +158,10 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon) refData->m_bitmapMask = new wxMask((WXHBITMAP) wxInvertMask(iconInfo.hbmMask, w, h)); + + // delete the old one now as we don't need it any more + ::DeleteObject(iconInfo.hbmMask); + #if WXWIN_COMPATIBILITY_2 refData->m_ok = TRUE; #endif // WXWIN_COMPATIBILITY_2 @@ -218,8 +236,6 @@ bool wxBitmap::CopyFromIcon(const wxIcon& icon) wxBitmap::~wxBitmap() { - if (wxTheBitmapList) - wxTheBitmapList->DeleteObject(this); } wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) @@ -332,48 +348,126 @@ wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type) bool wxBitmap::Create(int w, int h, int d) { -#ifndef __WXMICROWIN__ UnRef(); m_refData = new wxBitmapRefData; - GetBitmapData()->m_width = w; - GetBitmapData()->m_height = h; - GetBitmapData()->m_depth = d; - - HBITMAP hbmp; - - if ( d > 0 ) +#if wxUSE_DIB_FOR_BITMAP + if ( w && h && d >= 16 ) { - hbmp = ::CreateBitmap(w, h, 1, d, NULL); - if ( !hbmp ) - { - wxLogLastError(wxT("CreateBitmap")); - } + if ( !CreateDIB(w, h, d) ) + return FALSE; } else +#endif // wxUSE_DIB_FOR_BITMAP { - ScreenHDC dc; - hbmp = ::CreateCompatibleBitmap(dc, w, h); - if ( !hbmp ) + GetBitmapData()->m_width = w; + GetBitmapData()->m_height = h; + GetBitmapData()->m_depth = d; + + HBITMAP hbmp; +#ifndef __WXMICROWIN__ + if ( d > 0 ) { - wxLogLastError(wxT("CreateCompatibleBitmap")); + hbmp = ::CreateBitmap(w, h, 1, d, NULL); + if ( !hbmp ) + { + wxLogLastError(wxT("CreateBitmap")); + } } + else +#endif // !__WXMICROWIN__ + { + ScreenHDC dc; + hbmp = ::CreateCompatibleBitmap(dc, w, h); + if ( !hbmp ) + { + wxLogLastError(wxT("CreateCompatibleBitmap")); + } - GetBitmapData()->m_depth = wxDisplayDepth(); - } + GetBitmapData()->m_depth = wxDisplayDepth(); + } - SetHBITMAP((WXHBITMAP)hbmp); + SetHBITMAP((WXHBITMAP)hbmp); + } #if WXWIN_COMPATIBILITY_2 GetBitmapData()->m_ok = hbmp != 0; #endif // WXWIN_COMPATIBILITY_2 + return Ok(); -#else - return FALSE; -#endif } +#if wxUSE_DIB_FOR_BITMAP + +void *wxBitmap::CreateDIB(int width, int height, int depth) +{ + void *dibBits; + const int infosize = sizeof(BITMAPINFOHEADER); + + BITMAPINFO *info = (BITMAPINFO *)malloc(infosize); + if ( info ) + { + memset(info, 0, infosize); + + info->bmiHeader.biSize = infosize; + info->bmiHeader.biWidth = width; + info->bmiHeader.biHeight = height; + info->bmiHeader.biPlanes = 1; + info->bmiHeader.biBitCount = depth; + info->bmiHeader.biCompression = BI_RGB; + info->bmiHeader.biSizeImage = + (((width * (depth/8)) + sizeof(DWORD) - 1) / + sizeof(DWORD) * sizeof(DWORD)) * height; + info->bmiHeader.biXPelsPerMeter = 0; + info->bmiHeader.biYPelsPerMeter = 0; + info->bmiHeader.biClrUsed = 0; + info->bmiHeader.biClrImportant = 0; + GetBitmapData()->m_hFileMap = + (WXHANDLE)::CreateFileMapping + ( + INVALID_HANDLE_VALUE, + 0, + PAGE_READWRITE | SEC_COMMIT, + 0, + info->bmiHeader.biSizeImage, + 0 + ); + + // No need to report an error here. If it fails, we just won't use a + // file mapping and CreateDIBSection will just allocate memory for us. + GetBitmapData()->m_handle = + (WXHANDLE)::CreateDIBSection + ( + 0, + info, + DIB_RGB_COLORS, + &dibBits, + (HANDLE)GetBitmapData()->m_hFileMap, + 0 + ); + + if ( !GetBitmapData()->m_handle ) + wxLogLastError(wxT("CreateDIBSection")); + + SetWidth(width); + SetHeight(height); + SetDepth(depth); + + free(info); + } + else + { + wxFAIL_MSG( wxT("could not allocate memory for DIB header") ); + + dibBits = NULL; + } + + return dibBits; +} + +#endif // wxUSE_DIB_FOR_BITMAP + // ---------------------------------------------------------------------------- // wxImage to/from conversions // ---------------------------------------------------------------------------- @@ -383,18 +477,173 @@ bool wxBitmap::Create(int w, int h, int d) bool wxBitmap::CreateFromImage( const wxImage& image, int depth ) { #ifdef __WXMICROWIN__ - // TODO - return FALSE; + + // Set this to 1 to experiment with mask code, + // which currently doesn't work +#define USE_MASKS 0 + + m_refData = new wxBitmapRefData(); + + // Initial attempt at a simple-minded implementation. + // The bitmap will always be created at the screen depth, + // so the 'depth' argument is ignored. + + HDC hScreenDC = ::GetDC(NULL); + int screenDepth = ::GetDeviceCaps(hScreenDC, BITSPIXEL); + + HBITMAP hBitmap = ::CreateCompatibleBitmap(hScreenDC, image.GetWidth(), image.GetHeight()); + HBITMAP hMaskBitmap = NULL; + HBITMAP hOldMaskBitmap = NULL; + HDC hMaskDC = NULL; + unsigned char maskR = 0; + unsigned char maskG = 0; + unsigned char maskB = 0; + + // printf("Created bitmap %d\n", (int) hBitmap); + if (hBitmap == NULL) + { + ::ReleaseDC(NULL, hScreenDC); + return FALSE; + } + HDC hMemDC = ::CreateCompatibleDC(hScreenDC); + + HBITMAP hOldBitmap = ::SelectObject(hMemDC, hBitmap); + ::ReleaseDC(NULL, hScreenDC); + + // created an mono-bitmap for the possible mask + bool hasMask = image.HasMask(); + + if ( hasMask ) + { +#if USE_MASKS + // FIXME: we should be able to pass bpp = 1, but + // GdBlit can't handle a different depth +#if 0 + hMaskBitmap = ::CreateBitmap( (WORD)image.GetWidth(), (WORD)image.GetHeight(), 1, 1, NULL ); #else + hMaskBitmap = ::CreateCompatibleBitmap( hMemDC, (WORD)image.GetWidth(), (WORD)image.GetHeight()); +#endif + maskR = image.GetMaskRed(); + maskG = image.GetMaskGreen(); + maskB = image.GetMaskBlue(); + + if (!hMaskBitmap) + { + hasMask = FALSE; + } + else + { + hScreenDC = ::GetDC(NULL); + hMaskDC = ::CreateCompatibleDC(hScreenDC); + ::ReleaseDC(NULL, hScreenDC); + + hOldMaskBitmap = ::SelectObject( hMaskDC, hMaskBitmap); + } +#else + hasMask = FALSE; +#endif + } + + int i, j; + for (i = 0; i < image.GetWidth(); i++) + { + for (j = 0; j < image.GetHeight(); j++) + { + unsigned char red = image.GetRed(i, j); + unsigned char green = image.GetGreen(i, j); + unsigned char blue = image.GetBlue(i, j); + + ::SetPixel(hMemDC, i, j, PALETTERGB(red, green, blue)); + + if (hasMask) + { + // scan the bitmap for the transparent colour and set the corresponding + // pixels in the mask to BLACK and the rest to WHITE + if (maskR == red && maskG == green && maskB == blue) + ::SetPixel(hMaskDC, i, j, PALETTERGB(0, 0, 0)); + else + ::SetPixel(hMaskDC, i, j, PALETTERGB(255, 255, 255)); + } + } + } + + ::SelectObject(hMemDC, hOldBitmap); + ::DeleteDC(hMemDC); + if (hasMask) + { + ::SelectObject(hMaskDC, hOldMaskBitmap); + ::DeleteDC(hMaskDC); + + ((wxBitmapRefData*)m_refData)->m_bitmapMask = new wxMask((WXHBITMAP) hMaskBitmap); + } + + SetWidth(image.GetWidth()); + SetHeight(image.GetHeight()); + SetDepth(screenDepth); + SetHBITMAP( (WXHBITMAP) hBitmap ); + +#if wxUSE_PALETTE + // Copy the palette from the source image + SetPalette(image.GetPalette()); +#endif // wxUSE_PALETTE + +#if WXWIN_COMPATIBILITY_2 + // check the wxBitmap object + GetBitmapData()->SetOk(); +#endif // WXWIN_COMPATIBILITY_2 + + return TRUE; + +#else // !__WXMICROWIN__ wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") ) m_refData = new wxBitmapRefData(); +#if wxUSE_DIB_FOR_BITMAP + int h = image.GetHeight(); + int w = image.GetWidth(); + unsigned char *dibBits = (unsigned char*)CreateDIB(w, h, 24); + if ( !dibBits ) + return FALSE; + + // DIBs are stored in bottom to top order so we need to copy bits line by + // line and starting from the end + const int srcBytesPerLine = w * 3; + const int dstBytesPerLine = (srcBytesPerLine + sizeof(DWORD) - 1) / + sizeof(DWORD) * sizeof(DWORD); + const unsigned char *src = image.GetData() + ((h - 1) * srcBytesPerLine); + for ( int i = 0; i < h; i++ ) + { + // copy one DIB line + int x = w; + const unsigned char *rgbBits = src; + while ( x-- ) + { + // also, the order of RGB is inversed for DIBs + *dibBits++ = rgbBits[2]; + *dibBits++ = rgbBits[1]; + *dibBits++ = rgbBits[0]; + + rgbBits += 3; + } + + // pass to the next line + src -= srcBytesPerLine; + dibBits += dstBytesPerLine - srcBytesPerLine; + } + + if ( image.HasMask() ) + { + SetMask(new wxMask(*this, wxColour(image.GetMaskRed(), + image.GetMaskGreen(), + image.GetMaskBlue()))); + } +#else // wxUSE_DIB_FOR_BITMAP // sizeLimit is the MS upper limit for the DIB size #ifdef WIN32 int sizeLimit = 1024*768*3; #else - int sizeLimit = 0x7fff ; + int sizeLimit = 0x7fff; #endif // width and height of the device-dependent bitmap @@ -431,6 +680,11 @@ bool wxBitmap::CreateFromImage( const wxImage& image, int depth ) if (depth == -1) depth = wxDisplayDepth(); SetDepth( depth ); +#if wxUSE_PALETTE + // Copy the palette from the source image + SetPalette(image.GetPalette()); +#endif // wxUSE_PALETTE + // create a DIB header int headersize = sizeof(BITMAPINFOHEADER); BITMAPINFO *lpDIBh = (BITMAPINFO *) malloc( headersize ); @@ -603,24 +857,81 @@ bool wxBitmap::CreateFromImage( const wxImage& image, int depth ) ::ReleaseDC(NULL, hdc); free(lpDIBh); free(lpBits); +#endif // wxUSE_DIB_FOR_BITMAP #if WXWIN_COMPATIBILITY_2 // check the wxBitmap object GetBitmapData()->SetOk(); #endif // WXWIN_COMPATIBILITY_2 - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); - return TRUE; -#endif +#endif // __WXMICROWIN__/!__WXMICROWIN__ } wxImage wxBitmap::ConvertToImage() const { #ifdef __WXMICROWIN__ - // TODO - return wxImage(); -#else + // Initial attempt at a simple-minded implementation. + // The bitmap will always be created at the screen depth, + // so the 'depth' argument is ignored. + // TODO: transparency (create a mask image) + + if (!Ok()) + { + wxFAIL_MSG( wxT("bitmap is invalid") ); + return wxNullImage; + } + + wxImage image; + + wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") ); + + // create an wxImage object + int width = GetWidth(); + int height = GetHeight(); + image.Create( width, height ); + unsigned char *data = image.GetData(); + if( !data ) + { + wxFAIL_MSG( wxT("could not allocate data for image") ); + return wxNullImage; + } + + HDC hScreenDC = ::GetDC(NULL); + + HDC hMemDC = ::CreateCompatibleDC(hScreenDC); + ::ReleaseDC(NULL, hScreenDC); + + HBITMAP hBitmap = (HBITMAP) GetHBITMAP(); + + HBITMAP hOldBitmap = ::SelectObject(hMemDC, hBitmap); + + int i, j; + for (i = 0; i < GetWidth(); i++) + { + for (j = 0; j < GetHeight(); j++) + { + COLORREF color = ::GetPixel(hMemDC, i, j); + unsigned char red = GetRValue(color); + unsigned char green = GetGValue(color); + unsigned char blue = GetBValue(color); + + image.SetRGB(i, j, red, green, blue); + } + } + + ::SelectObject(hMemDC, hOldBitmap); + ::DeleteDC(hMemDC); + +#if wxUSE_PALETTE + // Copy the palette from the source image + if (GetPalette()) + image.SetPalette(* GetPalette()); +#endif // wxUSE_PALETTE + + return image; + +#else // !__WXMICROWIN__ wxImage image; wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") ); @@ -745,7 +1056,7 @@ wxImage wxBitmap::ConvertToImage() const free(lpBits); return image; -#endif +#endif // __WXMICROWIN__/!__WXMICROWIN__ } #endif // wxUSE_IMAGE @@ -768,7 +1079,7 @@ bool wxBitmap::LoadFile(const wxString& filename, long type) wxImage image; if ( image.LoadFile( filename, type ) && image.Ok() ) { - *this = image.ConvertToBitmap(); + *this = wxBitmap(image); return TRUE; } @@ -786,7 +1097,7 @@ bool wxBitmap::Create(void *data, long type, int width, int height, int depth) if ( !handler ) { - wxLogDebug(wxT("Failed to create bitmap: no bitmap handler for type %d defined."), type); + wxLogDebug(wxT("Failed to create bitmap: no bitmap handler for type %ld defined."), type); return FALSE; } @@ -810,7 +1121,7 @@ bool wxBitmap::SaveFile(const wxString& filename, else { // FIXME what about palette? shouldn't we use it? - wxImage image( *this ); + wxImage image = ConvertToImage(); if ( image.Ok() ) { return image.SaveFile(filename, type); @@ -827,7 +1138,6 @@ bool wxBitmap::SaveFile(const wxString& filename, wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const { -#ifndef __WXMICROWIN__ wxCHECK_MSG( Ok() && (rect.x >= 0) && (rect.y >= 0) && (rect.x+rect.width <= GetWidth()) && @@ -837,35 +1147,41 @@ wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const wxBitmap ret( rect.width, rect.height, GetDepth() ); wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") ); +#ifndef __WXMICROWIN__ // copy bitmap data - HDC dcSrc = ::CreateCompatibleDC(NULL); - HDC dcDst = ::CreateCompatibleDC(NULL); - SelectObject(dcSrc, (HBITMAP) GetHBITMAP()); - SelectObject(dcDst, (HBITMAP) ret.GetHBITMAP()); - BitBlt(dcDst, 0, 0, rect.width, rect.height, dcSrc, rect.x, rect.y, SRCCOPY); + MemoryHDC dcSrc, dcDst; + + { + SelectInHDC selectSrc(dcSrc, GetHbitmap()), + selectDst(dcDst, GetHbitmapOf(ret)); + + if ( !::BitBlt(dcDst, 0, 0, rect.width, rect.height, + dcSrc, rect.x, rect.y, SRCCOPY) ) + { + wxLogLastError(_T("BitBlt")); + } + } // copy mask if there is one - if (GetMask()) + if ( GetMask() ) { HBITMAP hbmpMask = ::CreateBitmap(rect.width, rect.height, 1, 1, 0); - SelectObject(dcSrc, (HBITMAP) GetMask()->GetMaskBitmap()); - SelectObject(dcDst, (HBITMAP) hbmpMask); - BitBlt(dcDst, 0, 0, rect.width, rect.height, dcSrc, rect.x, rect.y, SRCCOPY); + SelectInHDC selectSrc(dcSrc, (HBITMAP) GetMask()->GetMaskBitmap()), + selectDst(dcDst, hbmpMask); + + if ( !::BitBlt(dcDst, 0, 0, rect.width, rect.height, + dcSrc, rect.x, rect.y, SRCCOPY) ) + { + wxLogLastError(_T("BitBlt")); + } wxMask *mask = new wxMask((WXHBITMAP) hbmpMask); ret.SetMask(mask); } - - SelectObject(dcDst, NULL); - SelectObject(dcSrc, NULL); - DeleteDC(dcDst); - DeleteDC(dcSrc); +#endif // !__WXMICROWIN__ return ret; -#else - return wxBitmap(); -#endif } // ---------------------------------------------------------------------------- @@ -913,7 +1229,7 @@ void wxBitmap::SetMask(wxMask *mask) wxBitmap wxBitmap::GetBitmapForDC(wxDC& dc) const { #ifdef __WXMICROWIN__ - return wxBitmap(); + return *this; #else wxMemoryDC memDC; wxBitmap tmpBitmap(GetWidth(), GetHeight(), dc.GetDepth()); @@ -1080,7 +1396,7 @@ bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) // scan the bitmap for the transparent colour and set the corresponding // pixels in the mask to BLACK and the rest to WHITE - COLORREF maskColour = wxColourToRGB(colour); + COLORREF maskColour = wxColourToPalRGB(colour); m_maskBitmap = (WXHBITMAP)::CreateBitmap(width, height, 1, 1, 0); HDC srcDC = ::CreateCompatibleDC(NULL); @@ -1112,32 +1428,13 @@ bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) ok = FALSE; } - // this is not very efficient, but I can't think of a better way of doing - // it - for ( int w = 0; ok && (w < width); w++ ) + if ( ok ) { - for ( int h = 0; ok && (h < height); h++ ) - { - COLORREF col = GetPixel(srcDC, w, h); - if ( col == CLR_INVALID ) - { - wxLogLastError(wxT("GetPixel")); - - // doesn't make sense to continue - ok = FALSE; - - break; - } - - if ( col == maskColour ) - { - ::SetPixel(destDC, w, h, RGB(0, 0, 0)); - } - else - { - ::SetPixel(destDC, w, h, RGB(255, 255, 255)); - } - } + // this will create a monochrome bitmap with 0 points for the pixels + // which have the same value as the background colour and 1 for the + // others + ::SetBkColor(srcDC, maskColour); + ::BitBlt(destDC, 0, 0, width, height, srcDC, 0, 0, NOTSRCCOPY); } ::SelectObject(srcDC, hbmpSrcOld); @@ -1146,9 +1443,9 @@ bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) ::DeleteDC(destDC); return ok; -#else +#else // __WXMICROWIN__ return FALSE; -#endif +#endif // __WXMICROWIN__/!__WXMICROWIN__ } // ----------------------------------------------------------------------------