+/////////////////////////////////////////////////////////////////////////////
+// Name: image.cpp
+// Purpose: wxImage
+// Author: Robert Roebling
+// RCS-ID: $Id$
+// Copyright: (c) Robert Roebling
+// Licence: wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifdef __GNUG__
+#pragma implementation "image.h"
+#endif
+
+#include "wx/image.h"
+#include "wx/debug.h"
+#include "wx/log.h"
+#include "../png/png.h"
+
+//-----------------------------------------------------------------------------
+// wxImage
+//-----------------------------------------------------------------------------
+
+class wxImageRefData: public wxObjectRefData
+{
+ public:
+
+ wxImageRefData(void);
+ ~wxImageRefData(void);
+
+ int m_width;
+ int m_height;
+ unsigned char *m_data;
+ bool m_hasMask;
+ unsigned char m_maskRed,m_maskGreen,m_maskBlue;
+ bool m_ok;
+};
+
+wxImageRefData::wxImageRefData(void)
+{
+ m_width = 0;
+ m_height = 0;
+ m_data = (unsigned char*) NULL;
+ m_ok = FALSE;
+ m_maskRed = 0;
+ m_maskGreen = 0;
+ m_maskBlue = 0;
+ m_hasMask = FALSE;
+}
+
+wxImageRefData::~wxImageRefData(void)
+{
+ if (m_data) free( m_data );
+}
+
+wxList wxImage::sm_handlers;
+
+//-----------------------------------------------------------------------------
+
+#define M_IMGDATA ((wxImageRefData *)m_refData)
+
+#if !USE_SHARED_LIBRARIES
+IMPLEMENT_DYNAMIC_CLASS(wxImage, wxObject)
+#endif
+
+wxImage::wxImage()
+{
+}
+
+wxImage::wxImage( int width, int height )
+{
+ Create( width, height );
+}
+
+wxImage::wxImage( const wxString& name, long type )
+{
+ LoadFile( name, type );
+}
+
+wxImage::wxImage( const wxImage& image )
+{
+ Ref(image);
+}
+
+wxImage::wxImage( const wxImage* image )
+{
+ if (image) Ref(*image);
+}
+
+void wxImage::Create( int width, int height )
+{
+ m_refData = new wxImageRefData();
+
+ M_IMGDATA->m_data = (unsigned char *) malloc( width*height*3 );
+ if (M_IMGDATA->m_data)
+ {
+ for (int l = 0; l < width*height*3; l++) M_IMGDATA->m_data[l] = 0;
+
+ M_IMGDATA->m_width = width;
+ M_IMGDATA->m_height = height;
+ M_IMGDATA->m_ok = TRUE;
+ }
+ else
+ {
+ UnRef();
+ }
+}
+
+void wxImage::Destroy()
+{
+ UnRef();
+}
+
+bool wxImage::Ok() const
+{
+ return (M_IMGDATA && M_IMGDATA->m_ok);
+}
+
+char unsigned *wxImage::GetData() const
+{
+ if (!Ok()) return (char unsigned *)NULL;
+
+ return M_IMGDATA->m_data;
+}
+
+void wxImage::SetData( char unsigned *WXUNUSED(data) )
+{
+}
+
+void wxImage::SetMaskColour( unsigned char r, unsigned char g, unsigned char b )
+{
+ if (!Ok()) return;
+
+ M_IMGDATA->m_maskRed = r;
+ M_IMGDATA->m_maskGreen = g;
+ M_IMGDATA->m_maskBlue = b;
+ M_IMGDATA->m_hasMask = TRUE;
+}
+
+unsigned char wxImage::GetMaskRed() const
+{
+ if (!Ok()) return 0;
+
+ return M_IMGDATA->m_maskRed;
+}
+
+unsigned char wxImage::GetMaskGreen() const
+{
+ if (!Ok()) return 0;
+
+ return M_IMGDATA->m_maskGreen;
+}
+
+unsigned char wxImage::GetMaskBlue() const
+{
+ if (!Ok()) return 0;
+
+ return M_IMGDATA->m_maskBlue;
+}
+
+void wxImage::SetMask( bool mask )
+{
+ if (!Ok()) return;
+
+ M_IMGDATA->m_hasMask = mask;
+}
+
+bool wxImage::HasMask() const
+{
+ if (!Ok()) return FALSE;
+
+ return M_IMGDATA->m_hasMask;
+}
+
+int wxImage::GetWidth() const
+{
+ return (M_IMGDATA ? M_IMGDATA->m_width : 0);
+}
+
+int wxImage::GetHeight() const
+{
+ return (M_IMGDATA ? M_IMGDATA->m_height : 0);
+}
+
+bool wxImage::LoadFile( const wxString& filename, long type )
+{
+ UnRef();
+
+ m_refData = new wxImageRefData;
+
+ wxImageHandler *handler = FindHandler(type);
+
+ if (handler == NULL)
+ {
+ wxLogWarning( "No image handler for type %d defined.", type );
+
+ return FALSE;
+ }
+
+ return handler->LoadFile( this, filename );
+}
+
+bool wxImage::SaveFile( const wxString& filename, int type )
+{
+ wxImageHandler *handler = FindHandler(type);
+
+ if (handler == NULL)
+ {
+ wxLogWarning( "No image handler for type %d defined.", type );
+
+ return FALSE;
+ }
+
+ return handler->SaveFile( this, filename );
+}
+
+void wxImage::AddHandler( wxImageHandler *handler )
+{
+ sm_handlers.Append( handler );
+}
+
+void wxImage::InsertHandler( wxImageHandler *handler )
+{
+ sm_handlers.Insert( handler );
+}
+
+bool wxImage::RemoveHandler( const wxString& name )
+{
+ wxImageHandler *handler = FindHandler(name);
+ if (handler)
+ {
+ sm_handlers.DeleteObject(handler);
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+wxImageHandler *wxImage::FindHandler( const wxString& name )
+{
+ wxNode *node = sm_handlers.First();
+ while (node)
+ {
+ wxImageHandler *handler = (wxImageHandler*)node->Data();
+ if (handler->GetName() == name) return handler;
+ node = node->Next();
+ }
+ return (wxImageHandler *)NULL;
+}
+
+wxImageHandler *wxImage::FindHandler( const wxString& extension, long bitmapType )
+{
+ wxNode *node = sm_handlers.First();
+ while (node)
+ {
+ wxImageHandler *handler = (wxImageHandler*)node->Data();
+ if ( handler->GetExtension() == extension &&
+ (bitmapType == -1 || handler->GetType() == bitmapType) )
+ return handler;
+ node = node->Next();
+ }
+ return (wxImageHandler*)NULL;
+}
+
+wxImageHandler *wxImage::FindHandler( long bitmapType )
+{
+ wxNode *node = sm_handlers.First();
+ while (node)
+ {
+ wxImageHandler *handler = (wxImageHandler *)node->Data();
+ if (handler->GetType() == bitmapType) return handler;
+ node = node->Next();
+ }
+ return NULL;
+}
+
+void wxImage::CleanUpHandlers()
+{
+ wxNode *node = sm_handlers.First();
+ while (node)
+ {
+ wxImageHandler *handler = (wxImageHandler *)node->Data();
+ wxNode *next = node->Next();
+ delete handler;
+ delete node;
+ node = next;
+ }
+}
+
+//-----------------------------------------------------------------------------
+// wxImageHandler
+//-----------------------------------------------------------------------------
+
+#if !USE_SHARED_LIBRARIES
+IMPLEMENT_DYNAMIC_CLASS(wxImageHandler,wxObject)
+#endif
+
+bool wxImageHandler::LoadFile( wxImage *WXUNUSED(image), const wxString& WXUNUSED(name) )
+{
+ return FALSE;
+}
+
+bool wxImageHandler::SaveFile( wxImage *WXUNUSED(image), const wxString& WXUNUSED(name) )
+{
+ return FALSE;
+}
+
+//-----------------------------------------------------------------------------
+// wxPNGHandler
+//-----------------------------------------------------------------------------
+
+#if !USE_SHARED_LIBRARIES
+IMPLEMENT_DYNAMIC_CLASS(wxPNGHandler,wxImageHandler)
+#endif
+
+bool wxPNGHandler::LoadFile( wxImage *image, const wxString& name )
+{
+ FILE *f;
+ png_structp png_ptr;
+ png_infop info_ptr;
+ unsigned char *ptr, **lines, *ptr2;
+ int transp,bit_depth,color_type,interlace_type;
+ png_uint_32 width, height;
+
+ image->Destroy();
+
+ transp = 0;
+ png_ptr = png_create_read_struct( PNG_LIBPNG_VER_STRING, NULL, NULL, NULL );
+ if (!png_ptr) return FALSE;
+
+ info_ptr = png_create_info_struct( png_ptr );
+ if (!info_ptr)
+ {
+ png_destroy_read_struct( &png_ptr, NULL, NULL );
+ return FALSE;
+ }
+
+ if (setjmp(png_ptr->jmpbuf))
+ {
+ png_destroy_read_struct( &png_ptr, &info_ptr, NULL );
+ return FALSE;
+ }
+
+ if (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+ {
+ png_destroy_read_struct( &png_ptr, &info_ptr, NULL );
+ return FALSE;
+ }
+
+ f = fopen( name, "rb" );
+ png_init_io( png_ptr, f );
+
+ png_read_info( png_ptr, info_ptr );
+ png_get_IHDR( png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, &interlace_type, NULL, NULL );
+
+ if (color_type == PNG_COLOR_TYPE_PALETTE) png_set_expand( png_ptr );
+
+ png_set_strip_16( png_ptr );
+ png_set_packing( png_ptr );
+ if (png_get_valid( png_ptr, info_ptr, PNG_INFO_tRNS)) png_set_expand( png_ptr );
+ png_set_filler( png_ptr, 0xff, PNG_FILLER_AFTER );
+
+ image->Create( width, height );
+
+ if (!image->Ok())
+ {
+ png_destroy_read_struct( &png_ptr, &info_ptr, NULL );
+ return FALSE;
+ }
+
+ lines = (unsigned char **)malloc( height * sizeof(unsigned char *) );
+ if (lines == NULL)
+ {
+ image->Destroy();
+ png_destroy_read_struct( &png_ptr, &info_ptr, NULL );
+ return FALSE;
+ }
+
+ for (unsigned int i = 0; i < height; i++)
+ {
+ if ((lines[i] = (unsigned char *)malloc(width * (sizeof(unsigned char) * 4))) == NULL)
+ {
+ image->Destroy();
+ for (unsigned int n = 0; n < i; n++) free( lines[n] );
+ free( lines );
+ png_destroy_read_struct( &png_ptr, &info_ptr, NULL );
+ return FALSE;
+ }
+ }
+
+ png_read_image( png_ptr, lines );
+ png_destroy_read_struct( &png_ptr, &info_ptr, NULL );
+ ptr = image->GetData();
+ if ((color_type == PNG_COLOR_TYPE_GRAY) ||
+ (color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
+ {
+ for (unsigned int y = 0; y < height; y++)
+ {
+ ptr2 = lines[y];
+ for (unsigned int x = 0; x < width; x++)
+ {
+ unsigned char r = *ptr2++;
+ unsigned char a = *ptr2++;
+ if (a < 128)
+ {
+ *ptr++ = 255;
+ *ptr++ = 0;
+ *ptr++ = 255;
+ transp = 1;
+ }
+ else
+ {
+ *ptr++ = r;
+ *ptr++ = r;
+ *ptr++ = r;
+ }
+ }
+ }
+ }
+ else
+ {
+ for (unsigned int y = 0; y < height; y++)
+ {
+ ptr2 = lines[y];
+ for (unsigned int x = 0; x < width; x++)
+ {
+ unsigned char r = *ptr2++;
+ unsigned char g = *ptr2++;
+ unsigned char b = *ptr2++;
+ unsigned char a = *ptr2++;
+ if (a < 128)
+ {
+ *ptr++ = 255;
+ *ptr++ = 0;
+ *ptr++ = 255;
+ transp = 1;
+ }
+ else
+ {
+ if ((r == 255) && (g == 0) && (b == 255)) r = 254;
+ *ptr++ = r;
+ *ptr++ = g;
+ *ptr++ = b;
+ }
+ }
+ }
+ }
+ for (unsigned int i = 0; i < height; i++) free( lines[i] );
+ free( lines );
+ if (transp)
+ image->SetMaskColour( 255, 0, 255 );
+ else
+ image->SetMask( FALSE );
+
+ return TRUE;
+}
+
+
+bool wxPNGHandler::SaveFile( wxImage *image, const wxString& name )
+{
+ FILE *f = fopen( name, "wb" );
+ if (f)
+ {
+ png_structp png_ptr = png_create_write_struct( PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+ if (!png_ptr)
+ {
+ fclose( f );
+ return FALSE;
+ }
+
+ png_infop info_ptr = png_create_info_struct(png_ptr);
+ if (info_ptr == NULL)
+ {
+ fclose(f);
+ png_destroy_write_struct( &png_ptr, (png_infopp)NULL );
+ return FALSE;
+ }
+
+ if (setjmp(png_ptr->jmpbuf))
+ {
+ fclose( f );
+ png_destroy_write_struct( &png_ptr, (png_infopp)NULL );
+ return FALSE;
+ }
+
+ png_init_io( png_ptr, f );
+ png_set_IHDR( png_ptr, info_ptr, image->GetWidth(), image->GetHeight(), 8,
+ PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE,
+ PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
+
+ png_color_8 sig_bit;
+ sig_bit.red = 8;
+ sig_bit.green = 8;
+ sig_bit.blue = 8;
+ sig_bit.alpha = 8;
+ png_set_sBIT( png_ptr, info_ptr, &sig_bit );
+ png_write_info( png_ptr, info_ptr );
+ png_set_shift( png_ptr, &sig_bit );
+ png_set_packing( png_ptr );
+
+ unsigned char *data = (unsigned char *)malloc( image->GetWidth()*4 );
+ if (!data)
+ {
+ fclose( f );
+ png_destroy_write_struct( &png_ptr, (png_infopp)NULL );
+ return FALSE;
+ }
+
+ for (int y = 0; y < image->GetHeight(); y++)
+ {
+ unsigned char *ptr = image->GetData() + (y * image->GetWidth() * 3);
+ for (int x = 0; x < image->GetWidth(); x++)
+ {
+ data[(x << 2) + 0] = *ptr++;
+ data[(x << 2) + 1] = *ptr++;
+ data[(x << 2) + 2] = *ptr++;
+ if ((data[(x << 2) + 0] == image->GetMaskRed()) &&
+ (data[(x << 2) + 1] == image->GetMaskGreen()) &&
+ (data[(x << 2) + 2] == image->GetMaskBlue()))
+ data[(x << 2) + 3] = 0;
+ else
+ data[(x << 2) + 3] = 255;
+ }
+ png_bytep row_ptr = data;
+ png_write_rows( png_ptr, &row_ptr, 1 );
+ }
+ free(data);
+ png_write_end( png_ptr, info_ptr );
+ png_destroy_write_struct( &png_ptr, (png_infopp)NULL );
+
+ fclose(f);
+ }
+ return TRUE;
+}
+
+//-----------------------------------------------------------------------------
+// wxBMPHandler
+//-----------------------------------------------------------------------------
+
+#if !USE_SHARED_LIBRARIES
+IMPLEMENT_DYNAMIC_CLASS(wxBMPHandler,wxImageHandler)
+#endif
+
+bool wxBMPHandler::LoadFile( wxImage *image, const wxString& name )
+{
+ FILE *file;
+ unsigned char *data, *ptr;
+ int done, i, bpp, planes, comp, ncolors, line, column,
+ linesize, linepos, rshift = 0, gshift = 0, bshift = 0;
+ unsigned char byte;
+ short int word;
+ long int dbuf[4], dword, rmask = 0, gmask = 0, bmask = 0, offset,
+ size;
+ signed char bbuf[4];
+ struct _cmap
+ {
+ unsigned char r, g, b;
+ }
+ *cmap = NULL;
+
+#define BI_RGB 0
+#define BI_RLE8 1
+#define BI_RLE4 2
+#define BI_BITFIELDS 3
+
+ image->Destroy();
+
+ file = fopen(name, "r");
+ if (!file)
+ return NULL;
+
+ done = 0;
+ /*
+ * Reading the bmp header
+ */
+
+ fread(&bbuf, 1, 2, file);
+
+ fread(dbuf, 4, 4, file);
+
+ size = dbuf[0];
+ offset = dbuf[2];
+
+ fread(dbuf, 4, 2, file);
+ int width = (int)dbuf[0];
+ int height = (int)dbuf[1];
+ if (width > 32767)
+ {
+ fprintf(stderr, "IMLIB ERROR: Image width > 32767 pixels for file\n");
+ fclose(file);
+ return FALSE;
+ }
+ if (height > 32767)
+ {
+ fprintf(stderr, "IMLIB ERROR: Image height > 32767 pixels for file\n");
+ fclose(file);
+ return FALSE;
+ }
+ fread(&word, 2, 1, file);
+ planes = (int)word;
+ fread(&word, 2, 1, file);
+ bpp = (int)word;
+ if (bpp != 1 && bpp != 4 && bpp != 8 && bpp && 16 && bpp != 24 && bpp != 32)
+ {
+ fprintf(stderr, "IMLIB ERROR: unknown bitdepth in file\n");
+ fclose(file);
+ return FALSE;
+ }
+ fread(dbuf, 4, 4, file);
+ comp = (int)dbuf[0];
+ if (comp != BI_RGB && comp != BI_RLE4 && comp != BI_RLE8 && comp != BI_BITFIELDS)
+ {
+ fprintf(stderr, "IMLIB ERROR: unknown encoding in Windows BMP file\n");
+ fclose(file);
+ return FALSE;
+ }
+ fread(dbuf, 4, 2, file);
+ ncolors = (int)dbuf[0];
+ if (ncolors == 0)
+ ncolors = 1 << bpp;
+ /* some more sanity checks */
+ if (((comp == BI_RLE4) && (bpp != 4)) || ((comp == BI_RLE8) && (bpp != 8)) || ((comp == BI_BITFIELDS) && (bpp != 16 && bpp != 32)))
+ {
+ fprintf(stderr, "IMLIB ERROR: encoding of BMP doesn't match bitdepth\n");
+ fclose(file);
+ return FALSE;
+ }
+ if (bpp < 16)
+ {
+ cmap = (struct _cmap *)malloc(sizeof(struct _cmap) * ncolors);
+
+ if (!cmap)
+ {
+ fprintf(stderr, "IMLIB ERROR: Cannot allocate RAM for color map in BMP file\n");
+ fclose(file);
+ return FALSE;
+ }
+ }
+ else
+ cmap = NULL;
+
+ image->Create( width, height );
+ ptr = image->GetData();
+ if (!ptr)
+ {
+ fprintf(stderr, "IMLIB ERROR: Cannot allocate RAM for RGB data in file\n");
+ fclose(file);
+ if (cmap)
+ free(cmap);
+ return FALSE;
+ }
+
+ /*
+ * Reading the palette, if it exists.
+ */
+ if (bpp < 16 && ncolors != 0)
+ {
+ for (i = 0; i < ncolors; i++)
+ {
+ fread(bbuf, 1, 4, file);
+ cmap[i].b = bbuf[0];
+ cmap[i].g = bbuf[1];
+ cmap[i].r = bbuf[2];
+ }
+ }
+ else if (bpp == 16 || bpp == 32)
+ {
+ if (comp == BI_BITFIELDS)
+ {
+ int bit = 0;
+
+ fread(dbuf, 4, 3, file);
+ bmask = dbuf[0];
+ gmask = dbuf[1];
+ rmask = dbuf[2];
+ /* find shift amount.. ugly, but i can't think of a better way */
+ for (bit = 0; bit < bpp; bit++)
+ {
+ if (bmask & (1 << bit))
+ bshift = bit;
+ if (gmask & (1 << bit))
+ gshift = bit;
+ if (rmask & (1 << bit))
+ rshift = bit;
+ }
+ }
+ else if (bpp == 16)
+ {
+ rmask = 0x7C00;
+ gmask = 0x03E0;
+ bmask = 0x001F;
+ rshift = 10;
+ gshift = 5;
+ bshift = 0;
+ }
+ else if (bpp == 32)
+ {
+ rmask = 0x00FF0000;
+ gmask = 0x0000FF00;
+ bmask = 0x000000FF;
+ rshift = 16;
+ gshift = 8;
+ bshift = 0;
+ }
+ }
+
+ /*
+ * REading the image data
+ */
+ fseek(file, offset, SEEK_SET);
+ data = ptr;
+
+ /* set the whole image to the background color */
+ if (bpp < 16 && (comp == BI_RLE4 || comp == BI_RLE8))
+ {
+ for (i = 0; i < width * height; i++)
+ {
+ *ptr++ = cmap[0].r;
+ *ptr++ = cmap[0].g;
+ *ptr++ = cmap[0].b;
+ }
+ ptr = data;
+ }
+ line = 0;
+ column = 0;
+#define poffset (line * width * 3 + column * 3)
+
+ /*
+ * BMPs are stored upside down... hmmmmmmmmmm....
+ */
+
+ linesize = ((width * bpp + 31) / 32) * 4;
+ for (line = (height - 1); line >= 0; line--)
+ {
+ linepos = 0;
+ for (column = 0; column < width;)
+ {
+ if (bpp < 16)
+ {
+ int index;
+
+ linepos++;
+ byte = getc(file);
+ if (bpp == 1)
+ {
+ int bit = 0;
+
+ for (bit = 0; bit < 8; bit++)
+ {
+ index = ((byte & (0x80 >> bit)) ? 1 : 0);
+ ptr[poffset] = cmap[index].r;
+ ptr[poffset + 1] = cmap[index].g;
+ ptr[poffset + 2] = cmap[index].b;
+ column++;
+ }
+ }
+ else if (bpp == 4)
+ {
+ if (comp == BI_RLE4)
+ {
+ fprintf(stderr, "can't deal with 4bit encoded yet.\n");
+ image->Destroy();
+ free(cmap);
+ return FALSE;
+ }
+ else
+ {
+ int nibble = 0;
+
+ for (nibble = 0; nibble < 2; nibble++)
+ {
+ index = ((byte & (0xF0 >> nibble * 4)) >> (!nibble * 4));
+ if (index >= 16)
+ index = 15;
+ ptr[poffset] = cmap[index].r;
+ ptr[poffset + 1] = cmap[index].g;
+ ptr[poffset + 2] = cmap[index].b;
+ column++;
+ }
+ }
+ }
+ else if (bpp == 8)
+ {
+ if (comp == BI_RLE8)
+ {
+ unsigned char first;
+
+ first = byte;
+ byte = getc(file);
+ if (first == 0)
+ {
+ if (byte == 0)
+ {
+/* column = width; */
+ }
+ else if (byte == 1)
+ {
+ column = width;
+ line = -1;
+ }
+ else if (byte == 2)
+ {
+ byte = getc(file);
+ column += byte;
+ linepos = column * bpp / 8;
+ byte = getc(file);
+ line += byte;
+ }
+ else
+ {
+ int absolute = byte;
+
+ for (i = 0; i < absolute; i++)
+ {
+ +linepos++;
+ byte = getc(file);
+ ptr[poffset] = cmap[byte].r;
+ ptr[poffset + 1] = cmap[byte].g;
+ ptr[poffset + 2] = cmap[byte].b;
+ column++;
+ }
+ if (absolute & 0x01)
+ byte = getc(file);
+ }
+ }
+ else
+ {
+ for (i = 0; i < first; i++)
+ {
+ ptr[poffset] = cmap[byte].r;
+ ptr[poffset + 1] = cmap[byte].g;
+ ptr[poffset + 2] = cmap[byte].b;
+ column++;
+ linepos++;
+ }
+ }
+ }
+ else
+ {
+ ptr[poffset] = cmap[byte].r;
+ ptr[poffset + 1] = cmap[byte].g;
+ ptr[poffset + 2] = cmap[byte].b;
+ column++;
+ linepos += size;
+ }
+ }
+ }
+ else if (bpp == 24)
+ {
+ linepos += fread(&bbuf, 1, 3, file);
+ ptr[poffset] = (unsigned char)bbuf[2];
+ ptr[poffset + 1] = (unsigned char)bbuf[1];
+ ptr[poffset + 2] = (unsigned char)bbuf[0];
+ column++;
+ }
+ else if (bpp == 16)
+ {
+ unsigned char temp;
+
+ linepos += fread(&word, 2, 1, file);
+ temp = (word & rmask) >> rshift;
+ ptr[poffset] = temp;
+ temp = (word & gmask) >> gshift;
+ ptr[poffset + 1] = temp;
+ temp = (word & bmask) >> gshift;
+ ptr[poffset + 2] = temp;
+ column++;
+ }
+ else
+ {
+ unsigned char temp;
+
+ linepos += fread(&dword, 4, 1, file);
+ temp = (dword & rmask) >> rshift;
+ ptr[poffset] = temp;
+ temp = (dword & gmask) >> gshift;
+ ptr[poffset + 1] = temp;
+ temp = (dword & bmask) >> bshift;
+ ptr[poffset + 2] = temp;
+ column++;
+ }
+ }
+ while ((linepos < linesize) && (comp != 1) && (comp != 2))
+ {
+ int temp = fread(&byte, 1, 1, file);
+
+ linepos += temp;
+ if (!temp)
+ break;
+ }
+ }
+ if (cmap) free(cmap);
+
+ image->SetMask( FALSE );
+
+ fclose(file);
+ return TRUE;
+}
+
projects / wxWidgets.git / commitdiff
