public:
wxImageRefData(void);
~wxImageRefData(void);
-
+
int m_width;
int m_height;
unsigned char *m_data;
LoadFile( stream, type );
}
-wxImage::wxImage( const wxImage& image )
-{
- Ref(image);
+wxImage::wxImage( const wxImage& image )
+{
+ Ref(image);
}
-wxImage::wxImage( const wxImage* image )
-{
- if (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;
wxImage wxImage::Scale( int width, int height )
{
wxImage image;
-
+
wxCHECK_MSG( Ok(), image, "invlaid image" );
-
+
wxCHECK_MSG( (width > 0) && (height > 0), image, "invalid image size" );
-
+
image.Create( width, height );
-
+
char unsigned *data = image.GetData();
-
+
wxCHECK_MSG( data, image, "unable to create image" );
-
+
if (M_IMGDATA->m_hasMask)
image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue );
-
+
double xscale = (double)width / (double)M_IMGDATA->m_width;
double yscale = (double)height / (double)M_IMGDATA->m_height;
-
+
for (int j = 0; j < height; j++)
{
for (int i = 0; i < width; i++)
- {
- int new_pos = 3*(j*width + i);
- int old_pos = 3*((long)(j/yscale)*M_IMGDATA->m_width + (long)(i/xscale));
- data[ new_pos ] = M_IMGDATA->m_data[ old_pos ];
- data[ new_pos+1 ] = M_IMGDATA->m_data[ old_pos+1 ];
- data[ new_pos+2 ] = M_IMGDATA->m_data[ old_pos+2 ];
- }
+ {
+ int new_pos = 3*(j*width + i);
+ int old_pos = 3*((long)(j/yscale)*M_IMGDATA->m_width + (long)(i/xscale));
+ data[ new_pos ] = M_IMGDATA->m_data[ old_pos ];
+ data[ new_pos+1 ] = M_IMGDATA->m_data[ old_pos+1 ];
+ data[ new_pos+2 ] = M_IMGDATA->m_data[ old_pos+2 ];
+ }
}
-
+
return image;
}
-
+
void wxImage::SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b )
{
wxCHECK_RET( Ok(), "invalid image" );
-
+
int w = M_IMGDATA->m_width;
int h = M_IMGDATA->m_height;
-
+
wxCHECK_RET( (x>=0) && (y>=0) && (x<w) && (y<h), "invalid image index" );
-
+
long pos = (y * w + x) * 3;
-
+
M_IMGDATA->m_data[ pos ] = r;
M_IMGDATA->m_data[ pos+1 ] = g;
M_IMGDATA->m_data[ pos+2 ] = b;
unsigned char wxImage::GetRed( int x, int y )
{
wxCHECK_MSG( Ok(), 0, "invalid image" );
-
+
int w = M_IMGDATA->m_width;
int h = M_IMGDATA->m_height;
-
+
wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, "invalid image index" );
-
+
long pos = (y * w + x) * 3;
-
+
return M_IMGDATA->m_data[pos];
}
unsigned char wxImage::GetGreen( int x, int y )
{
wxCHECK_MSG( Ok(), 0, "invalid image" );
-
+
int w = M_IMGDATA->m_width;
int h = M_IMGDATA->m_height;
-
+
wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, "invalid image index" );
-
+
long pos = (y * w + x) * 3;
-
+
return M_IMGDATA->m_data[pos+1];
}
unsigned char wxImage::GetBlue( int x, int y )
{
wxCHECK_MSG( Ok(), 0, "invalid image" );
-
+
int w = M_IMGDATA->m_width;
int h = M_IMGDATA->m_height;
-
+
wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, "invalid image index" );
-
+
long pos = (y * w + x) * 3;
-
+
return M_IMGDATA->m_data[pos+2];
}
-
-bool wxImage::Ok() const
-{
- return (M_IMGDATA && M_IMGDATA->m_ok);
+
+bool wxImage::Ok() const
+{
+ return (M_IMGDATA && M_IMGDATA->m_ok);
}
char unsigned *wxImage::GetData() const
{
wxCHECK_MSG( Ok(), (char unsigned *)NULL, "invalid image" );
-
+
return M_IMGDATA->m_data;
}
void wxImage::SetMaskColour( unsigned char r, unsigned char g, unsigned char b )
{
wxCHECK_RET( Ok(), "invalid image" );
-
+
M_IMGDATA->m_maskRed = r;
M_IMGDATA->m_maskGreen = g;
M_IMGDATA->m_maskBlue = b;
unsigned char wxImage::GetMaskRed() const
{
wxCHECK_MSG( Ok(), 0, "invalid image" );
-
+
return M_IMGDATA->m_maskRed;
}
unsigned char wxImage::GetMaskGreen() const
{
wxCHECK_MSG( Ok(), 0, "invalid image" );
-
+
return M_IMGDATA->m_maskGreen;
}
unsigned char wxImage::GetMaskBlue() const
{
wxCHECK_MSG( Ok(), 0, "invalid image" );
-
+
return M_IMGDATA->m_maskBlue;
}
-
+
void wxImage::SetMask( bool mask )
{
wxCHECK_RET( Ok(), "invalid image" );
-
+
M_IMGDATA->m_hasMask = mask;
}
bool wxImage::HasMask() const
{
wxCHECK_MSG( Ok(), FALSE, "invalid image" );
-
+
return M_IMGDATA->m_hasMask;
}
-int wxImage::GetWidth() const
-{
+int wxImage::GetWidth() const
+{
wxCHECK_MSG( Ok(), 0, "invalid image" );
-
- return M_IMGDATA->m_width;
+
+ return M_IMGDATA->m_width;
}
-int wxImage::GetHeight() const
-{
+int wxImage::GetHeight() const
+{
wxCHECK_MSG( Ok(), 0, "invalid image" );
-
- return M_IMGDATA->m_height;
+
+ return M_IMGDATA->m_height;
}
bool wxImage::LoadFile( const wxString& filename, long type )
bool wxImage::LoadFile( wxInputStream& stream, long type )
{
UnRef();
-
+
m_refData = new wxImageRefData;
wxImageHandler *handler = FindHandler(type);
- if (handler == NULL)
+ if (handler == NULL)
{
wxLogWarning( "No image handler for type %d defined.", type );
bool wxImage::SaveFile( wxOutputStream& stream, int type )
{
wxCHECK_MSG( Ok(), FALSE, "invalid image" );
-
+
wxImageHandler *handler = FindHandler(type);
- if (handler == NULL)
+ if (handler == NULL)
{
wxLogWarning( "No image handler for type %d defined.", type );
void wxImage::AddHandler( wxImageHandler *handler )
{
+ // make sure that the memory will be freed at the program end
+ sm_handlers.DeleteContents(TRUE);
+
sm_handlers.Append( handler );
}
void wxImage::InsertHandler( wxImageHandler *handler )
{
+ // make sure that the memory will be freed at the program end
+ sm_handlers.DeleteContents(TRUE);
+
sm_handlers.Insert( handler );
}
{
((wxInputStream*) png_get_io_ptr( png_ptr )) -> Read(data, length);
}
-
+
static void _PNG_stream_writer( png_structp png_ptr, png_bytep data, png_size_t length )
{
((wxOutputStream*) png_get_io_ptr( png_ptr )) -> Write(data, length);
}
-
+
bool wxPNGHandler::LoadFile( wxImage *image, wxInputStream& stream )
{
-// 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;
- //unsigned int i;
-
+ // VZ: as this function uses setjmp() the only fool proof error handling
+ // method is to use goto (setjmp is not really C++ dtors friendly...)
image->Destroy();
-
- png_structp png_ptr = png_create_read_struct( PNG_LIBPNG_VER_STRING,
- (voidp) NULL, (png_error_ptr) NULL, (png_error_ptr) NULL );
- if (!png_ptr) return FALSE;
- png_infop info_ptr = png_create_info_struct( png_ptr );
+ unsigned int i;
+ unsigned char **lines = NULL;
+ png_infop info_ptr = NULL;
+
+ png_structp png_ptr = png_create_read_struct( PNG_LIBPNG_VER_STRING,
+ (voidp) NULL,
+ (png_error_ptr) NULL,
+ (png_error_ptr) NULL );
+ if (!png_ptr)
+ goto error;
+
+ info_ptr = png_create_info_struct( png_ptr );
if (!info_ptr)
- {
- png_destroy_read_struct( &png_ptr, (png_infopp) NULL, (png_infopp) NULL );
- return FALSE;
- }
+ goto error;
if (setjmp(png_ptr->jmpbuf))
- {
- png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL );
- return FALSE;
- }
+ goto error;
if (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- {
- png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL );
- return FALSE;
- }
+ goto error;
+
png_set_read_fn( png_ptr, &stream, _PNG_stream_reader);
-
+
png_uint_32 width,height;
int bit_depth,color_type,interlace_type;
png_read_info( png_ptr, info_ptr );
png_get_IHDR( png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, &interlace_type, (int*) NULL, (int*) NULL );
-
- if (color_type == PNG_COLOR_TYPE_PALETTE) png_set_expand( png_ptr );
-
+
+ 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 );
+ 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, (png_infopp) NULL );
- return FALSE;
- }
-
- unsigned char **lines = (unsigned char **)malloc( height * sizeof(unsigned char *) );
+ goto error;
+
+ lines = (unsigned char **)malloc( height * sizeof(unsigned char *) );
if (lines == NULL)
- {
- image->Destroy();
- png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL );
- return FALSE;
- }
-
- for (unsigned int i = 0; i < height; i++)
+ goto error;
+
+ for (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, (png_infopp) NULL );
- return FALSE;
+ for ( unsigned int n = 0; n < i; n++ )
+ free( lines[n] );
+ goto error;
}
}
-
-
- int transp = 0;
- png_read_image( png_ptr, lines );
- png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL );
- unsigned char *ptr = image->GetData();
- if ((color_type == PNG_COLOR_TYPE_GRAY) ||
- (color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
+
+ // loaded successfully!
{
- for (unsigned int y = 0; y < height; y++)
- {
- unsigned char *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;
- }
- }
- }
+ int transp = 0;
+ png_read_image( png_ptr, lines );
+ png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL );
+ unsigned char *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++)
+ {
+ unsigned char *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++)
+ {
+ unsigned char *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 j = 0; j < height; j++ )
+ free( lines[j] );
+ free( lines );
+
+ if (transp)
+ {
+ image->SetMaskColour( 255, 0, 255 );
+ }
+ else
+ {
+ image->SetMask( FALSE );
+ }
}
- else
+
+ return TRUE;
+
+error:
+ wxLogError(_("Couldn't load a PNG image - probably file is corrupted."));
+
+ if ( image->Ok() )
{
- for (unsigned int y = 0; y < height; y++)
- {
- unsigned char *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;
- }
- }
- }
+ image->Destroy();
}
-
- for (unsigned int j = 0; j < height; j++) free( lines[j] );
- free( lines );
-
- if (transp)
+
+ if ( lines )
{
- image->SetMaskColour( 255, 0, 255 );
+ free( lines );
}
- else
+
+ if ( png_ptr )
{
- image->SetMask( FALSE );
+ if ( info_ptr )
+ {
+ png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL );
+ free(info_ptr);
+ }
+ else
+ png_destroy_read_struct( &png_ptr, (png_infopp) NULL, (png_infopp) NULL );
}
-
- return TRUE;
+ return FALSE;
}
{
{
png_structp png_ptr = png_create_write_struct( PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
- if (!png_ptr)
- {
- return FALSE;
+ if (!png_ptr)
+ {
+ return FALSE;
}
-
+
png_infop info_ptr = png_create_info_struct(png_ptr);
if (info_ptr == NULL)
{
png_destroy_write_struct( &png_ptr, (png_infopp)NULL );
return FALSE;
}
-
+
if (setjmp(png_ptr->jmpbuf))
{
png_destroy_write_struct( &png_ptr, (png_infopp)NULL );
return FALSE;
}
-
+
png_set_write_fn( png_ptr, &stream, _PNG_stream_writer, NULL);
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_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE,
+ PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
png_color_8 sig_bit;
sig_bit.red = 8;
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)
{
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) + 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;
- }
+ }
+ 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 );
+ png_destroy_write_struct( &png_ptr, (png_infopp)&info_ptr );
}
return TRUE;
}
-#endif
+#endif
// wxUSE_LIBPNG
#if !USE_SHARED_LIBRARIES
IMPLEMENT_DYNAMIC_CLASS(wxBMPHandler,wxImageHandler)
#endif
-
+
bool wxBMPHandler::LoadFile( wxImage *image, wxInputStream& stream )
{
unsigned char *data, *ptr;
signed char bbuf[4];
struct _cmap
{
- unsigned char r, g, b;
+ unsigned char r, g, b;
}
*cmap = NULL;
#ifndef BI_RGB
image->Destroy();
done = 0;
- /*
- * Reading the bmp header
+ /*
+ * Reading the bmp header
*/
stream.Read(&bbuf, 2);
int height = (int)dbuf[1];
if (width > 32767)
{
- wxLogError( "Image width > 32767 pixels for file\n" );
- return FALSE;
+ wxLogError( "Image width > 32767 pixels for file\n" );
+ return FALSE;
}
if (height > 32767)
{
- wxLogError( "Image height > 32767 pixels for file\n" );
- return FALSE;
+ wxLogError( "Image height > 32767 pixels for file\n" );
+ return FALSE;
}
stream.Read(&word, 2);
planes = (int)word;
bpp = (int)word;
if (bpp != 1 && bpp != 4 && bpp != 8 && bpp && 16 && bpp != 24 && bpp != 32)
{
- wxLogError( "unknown bitdepth in file\n" );
- return FALSE;
+ wxLogError( "unknown bitdepth in file\n" );
+ return FALSE;
}
stream.Read(dbuf, 4 * 4);
comp = (int)dbuf[0];
if (comp != BI_RGB && comp != BI_RLE4 && comp != BI_RLE8 && comp != BI_BITFIELDS)
{
wxLogError( "unknown encoding in Windows BMP file\n" );
- return FALSE;
+ return FALSE;
}
stream.Read(dbuf, 4 * 2);
ncolors = (int)dbuf[0];
if (((comp == BI_RLE4) && (bpp != 4)) || ((comp == BI_RLE8) && (bpp != 8)) || ((comp == BI_BITFIELDS) && (bpp != 16 && bpp != 32)))
{
wxLogError( "encoding of BMP doesn't match bitdepth\n" );
- return FALSE;
+ return FALSE;
}
if (bpp < 16)
{
- cmap = (struct _cmap *)malloc(sizeof(struct _cmap) * ncolors);
+ cmap = (struct _cmap *)malloc(sizeof(struct _cmap) * ncolors);
- if (!cmap)
- {
- wxLogError( "Cannot allocate RAM for color map in BMP file\n" );
- return FALSE;
- }
+ if (!cmap)
+ {
+ wxLogError( "Cannot allocate RAM for color map in BMP file\n" );
+ return FALSE;
+ }
}
else
cmap = NULL;
-
- image->Create( width, height );
+
+ image->Create( width, height );
ptr = image->GetData();
if (!ptr)
{
wxLogError( "Cannot allocate RAM for RGB data in file\n" );
- if (cmap)
- free(cmap);
- return FALSE;
+ if (cmap)
+ free(cmap);
+ return FALSE;
}
/*
*/
if (bpp < 16 && ncolors != 0)
{
- for (i = 0; i < ncolors; i++)
- {
- stream.Read(bbuf, 4);
- cmap[i].b = bbuf[0];
- cmap[i].g = bbuf[1];
- cmap[i].r = bbuf[2];
- }
+ for (i = 0; i < ncolors; i++)
+ {
+ stream.Read(bbuf, 4);
+ 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;
-
- stream.Read(dbuf, 4 * 3);
- 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;
- }
+ if (comp == BI_BITFIELDS)
+ {
+ int bit = 0;
+
+ stream.Read(dbuf, 4 * 3);
+ 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;
+ }
}
/*
/* 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;
+ 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;
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++;
- aByte = stream.GetC();
- if (bpp == 1)
- {
- int bit = 0;
-
- for (bit = 0; bit < 8; bit++)
- {
- index = ((aByte & (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)
- {
- wxLogError( "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 = ((aByte & (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 = aByte;
- aByte = stream.GetC();
- if (first == 0)
- {
- if (aByte == 0)
- {
+ linepos = 0;
+ for (column = 0; column < width;)
+ {
+ if (bpp < 16)
+ {
+ int index;
+
+ linepos++;
+ aByte = stream.GetC();
+ if (bpp == 1)
+ {
+ int bit = 0;
+
+ for (bit = 0; bit < 8; bit++)
+ {
+ index = ((aByte & (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)
+ {
+ wxLogError( "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 = ((aByte & (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 = aByte;
+ aByte = stream.GetC();
+ if (first == 0)
+ {
+ if (aByte == 0)
+ {
/* column = width; */
- }
- else if (aByte == 1)
- {
- column = width;
- line = -1;
- }
- else if (aByte == 2)
- {
- aByte = stream.GetC();
- column += aByte;
- linepos = column * bpp / 8;
- aByte = stream.GetC();
- line += aByte;
- }
- else
- {
- int absolute = aByte;
-
- for (i = 0; i < absolute; i++)
- {
- linepos++;
- aByte = stream.GetC();
- ptr[poffset] = cmap[aByte].r;
- ptr[poffset + 1] = cmap[aByte].g;
- ptr[poffset + 2] = cmap[aByte].b;
- column++;
- }
- if (absolute & 0x01)
- aByte = stream.GetC();
- }
- }
- else
- {
- for (i = 0; i < first; i++)
- {
- ptr[poffset] = cmap[aByte].r;
- ptr[poffset + 1] = cmap[aByte].g;
- ptr[poffset + 2] = cmap[aByte].b;
- column++;
- linepos++;
- }
- }
- }
- else
- {
- ptr[poffset] = cmap[aByte].r;
- ptr[poffset + 1] = cmap[aByte].g;
- ptr[poffset + 2] = cmap[aByte].b;
- column++;
- linepos += size;
- }
- }
- }
- else if (bpp == 24)
- {
- stream.Read(&bbuf, 3);
- linepos += 3;
- 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;
-
- stream.Read(&word, 2);
- linepos += 2;
- 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;
-
- stream.Read(&dword, 4);
- linepos += 4;
- 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))
- {
- stream.Read(&aByte, 1);
- linepos += 1;
- if (stream.LastError() != wxStream_NOERROR)
- break;
- }
+ }
+ else if (aByte == 1)
+ {
+ column = width;
+ line = -1;
+ }
+ else if (aByte == 2)
+ {
+ aByte = stream.GetC();
+ column += aByte;
+ linepos = column * bpp / 8;
+ aByte = stream.GetC();
+ line += aByte;
+ }
+ else
+ {
+ int absolute = aByte;
+
+ for (i = 0; i < absolute; i++)
+ {
+ linepos++;
+ aByte = stream.GetC();
+ ptr[poffset] = cmap[aByte].r;
+ ptr[poffset + 1] = cmap[aByte].g;
+ ptr[poffset + 2] = cmap[aByte].b;
+ column++;
+ }
+ if (absolute & 0x01)
+ aByte = stream.GetC();
+ }
+ }
+ else
+ {
+ for (i = 0; i < first; i++)
+ {
+ ptr[poffset] = cmap[aByte].r;
+ ptr[poffset + 1] = cmap[aByte].g;
+ ptr[poffset + 2] = cmap[aByte].b;
+ column++;
+ linepos++;
+ }
+ }
+ }
+ else
+ {
+ ptr[poffset] = cmap[aByte].r;
+ ptr[poffset + 1] = cmap[aByte].g;
+ ptr[poffset + 2] = cmap[aByte].b;
+ column++;
+ linepos += size;
+ }
+ }
+ }
+ else if (bpp == 24)
+ {
+ stream.Read(&bbuf, 3);
+ linepos += 3;
+ 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;
+
+ stream.Read(&word, 2);
+ linepos += 2;
+ 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;
+
+ stream.Read(&dword, 4);
+ linepos += 4;
+ 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))
+ {
+ stream.Read(&aByte, 1);
+ linepos += 1;
+ if (stream.LastError() != wxStream_NOERROR)
+ break;
+ }
}
if (cmap) free(cmap);
-
+
image->SetMask( FALSE );
-
+
return TRUE;
}
wxBitmap wxImage::ConvertToBitmap() const
{
-
+
wxBitmap bitmap;
wxCHECK_MSG( Ok(), bitmap, "invalid image" );
int width = GetWidth();
*(ptbits++) = *(ptdata );
ptdata += 3;
}
-
+
HDC hdc = ::GetDC(NULL);
HBITMAP hbitmap;
hbitmap = CreateDIBitmap( hdc, &(lpDIBh->bmiHeader), CBM_INIT, lpBits, lpDIBh, DIB_RGB_COLORS );
-
+
// The above line is equivalent to the following two lines.
// hbitmap = ::CreateCompatibleBitmap( hdc, width, height );
// ::SetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS);
// or the following lines
// hbitmap = ::CreateCompatibleBitmap( hdc, width, height );
// HDC memdc = ::CreateCompatibleDC( hdc );
-// ::SelectObject( memdc, hbitmap);
+// ::SelectObject( memdc, hbitmap);
// ::SetDIBitsToDevice( memdc, 0, 0, width, height,
-// 0, 0, 0, height, (void *)lpBits, lpDIBh, DIB_RGB_COLORS);
-// ::SelectObject( memdc, 0 );
-// ::DeleteDC( memdc );
+// 0, 0, 0, height, (void *)lpBits, lpDIBh, DIB_RGB_COLORS);
+// ::SelectObject( memdc, 0 );
+// ::DeleteDC( memdc );
bitmap.SetHBITMAP( (WXHBITMAP) hbitmap );
*/
}
- ::ReleaseDC(NULL, hdc);
+ ::ReleaseDC(NULL, hdc);
free(lpDIBh);
free(lpBits);
bitmap.SetOk( TRUE );
else
bitmap.SetOk( FALSE );
-
+
return bitmap;
}
int width = bitmap.GetWidth();
int height = bitmap.GetHeight();
- Create( width, height );
+ Create( width, height );
unsigned char *data = GetData();
if( !data )
{
wxFAIL_MSG( "could not allocate data for image" );
return;
}
-
+
int headersize = sizeof(BITMAPINFOHEADER);
LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize );
if( !lpDIBh )
free( lpDIBh );
return;
}
-
+
HBITMAP hbitmap;
hbitmap = (HBITMAP) bitmap.GetHBITMAP();
HDC hdc = ::GetDC(NULL);
::GetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS );
-
+
unsigned char *ptdata = data, *ptbits = lpBits;
for( int i=0; i<width*height; i++ )
{
*(ptdata++) = *(ptbits+1);
*(ptdata++) = *(ptbits );
ptbits += 3;
- }
-
+ }
+
if( bitmap.GetMask() && bitmap.GetMask()->GetMaskBitmap() )
{
hbitmap = (HBITMAP) bitmap.GetMask()->GetMaskBitmap();
::SetTextColor( memdc, RGB( 0, 0, 0 ) );
::SetBkColor( memdc, RGB( 255, 255, 255 ) );
::GetDIBits( memdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS );
- ::DeleteDC( memdc );
+ ::DeleteDC( memdc );
unsigned char r=16, g=16, b=16; // background set to RGB(16,16,16)
ptdata = data;
ptbits = lpBits;
*(ptdata++) = b;
}
ptbits += 3;
- }
+ }
SetMaskColour( r, g, b );
- }
-
- ::ReleaseDC(NULL, hdc);
+ }
+
+ ::ReleaseDC(NULL, hdc);
free(lpDIBh);
free(lpBits);
}
mask_image = gdk_image_new_bitmap( gdk_visual_get_system(), mask_data, width, height );
- wxMask *mask = new wxMask();
- mask->m_bitmap = gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, 1 );
+ wxMask *mask = new wxMask();
+ mask->m_bitmap = gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, 1 );
- bitmap.SetMask( mask );
+ bitmap.SetMask( mask );
}
// Retrieve depth
GdkVisual *visual = gdk_window_get_visual( bitmap.GetPixmap() );
if (visual == NULL) visual = gdk_window_get_visual( (GdkWindow*) &gdk_root_parent );
int bpp = visual->depth;
-
+
bitmap.SetDepth( bpp );
-
+
if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15;
if (bpp < 8) bpp = 8;
for (int x = 0; x < width; x++)
{
int r = data[index];
- index++;
+ index++;
int g = data[index];
- index++;
+ index++;
int b = data[index];
- index++;
-
- if (HasMask())
- {
- if ((r == r_mask) && (b == b_mask) && (g == g_mask))
- gdk_image_put_pixel( mask_image, x, y, 1 );
- else
- gdk_image_put_pixel( mask_image, x, y, 0 );
- }
-
- switch (bpp)
- {
- case 8:
- {
+ index++;
+
+ if (HasMask())
+ {
+ if ((r == r_mask) && (b == b_mask) && (g == g_mask))
+ gdk_image_put_pixel( mask_image, x, y, 1 );
+ else
+ gdk_image_put_pixel( mask_image, x, y, 0 );
+ }
+
+ if (HasMask())
+ {
+ if ((r == r_mask) && (b == b_mask) && (g == g_mask))
+ gdk_image_put_pixel( mask_image, x, y, 1 );
+ else
+ gdk_image_put_pixel( mask_image, x, y, 0 );
+ }
+
+ switch (bpp)
+ {
+ case 8:
+ {
int pixel = -1;
- if (wxTheApp->m_colorCube)
- {
- pixel = wxTheApp->m_colorCube
- [ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
- }
+ if (wxTheApp->m_colorCube)
+ {
+ pixel = wxTheApp->m_colorCube
+ [ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
+ }
else
- {
- GdkColormap *cmap = gtk_widget_get_default_colormap();
+ {
+ GdkColormap *cmap = gtk_widget_get_default_colormap();
GdkColor *colors = cmap->colors;
int max = 3 * (65536);
int bdiff = (b << 8) - colors[i].blue;
int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
if (sum < max) { pixel = i; max = sum; }
- }
+ }
}
- gdk_image_put_pixel( data_image, x, y, pixel );
-
- break;
- }
- case 15:
- {
- guint32 pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3);
- gdk_image_put_pixel( data_image, x, y, pixel );
- break;
- }
- case 16:
- {
- guint32 pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3);
- gdk_image_put_pixel( data_image, x, y, pixel );
- break;
- }
- case 32:
- case 24:
- {
- guint32 pixel = 0;
- switch (b_o)
- {
- case RGB: pixel = (r << 16) | (g << 8) | b; break;
- case RBG: pixel = (r << 16) | (b << 8) | g; break;
- case BRG: pixel = (b << 16) | (r << 8) | g; break;
- case BGR: pixel = (b << 16) | (g << 8) | r; break;
- case GRB: pixel = (g << 16) | (r << 8) | b; break;
- case GBR: pixel = (g << 16) | (b << 8) | r; break;
- }
- gdk_image_put_pixel( data_image, x, y, pixel );
- }
- default: break;
- }
+ gdk_image_put_pixel( data_image, x, y, pixel );
+
+ break;
+ }
+ case 15:
+ {
+ guint32 pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3);
+ gdk_image_put_pixel( data_image, x, y, pixel );
+ break;
+ }
+ case 16:
+ {
+ guint32 pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3);
+ gdk_image_put_pixel( data_image, x, y, pixel );
+ break;
+ }
+ case 32:
+ case 24:
+ {
+ guint32 pixel = 0;
+ switch (b_o)
+ {
+ case RGB: pixel = (r << 16) | (g << 8) | b; break;
+ case RBG: pixel = (r << 16) | (b << 8) | g; break;
+ case BRG: pixel = (b << 16) | (r << 8) | g; break;
+ case BGR: pixel = (b << 16) | (g << 8) | r; break;
+ case GRB: pixel = (g << 16) | (r << 8) | b; break;
+ case GBR: pixel = (g << 16) | (b << 8) | r; break;
+ }
+ gdk_image_put_pixel( data_image, x, y, pixel );
+ }
+ default: break;
+ }
} // for
} // for
GdkImage *gdk_image = gdk_image_get( bitmap.GetPixmap(),
0, 0,
- bitmap.GetWidth(), bitmap.GetHeight() );
+ bitmap.GetWidth(), bitmap.GetHeight() );
wxCHECK_RET( gdk_image, "couldn't create image" );
{
gdk_image_destroy( gdk_image );
wxFAIL_MSG( "couldn't create image" );
- return;
+ return;
}
GdkImage *gdk_image_mask = (GdkImage*) NULL;
if (bitmap.GetMask())
{
gdk_image_mask = gdk_image_get( bitmap.GetMask()->GetBitmap(),
- 0, 0,
- bitmap.GetWidth(), bitmap.GetHeight() );
+ 0, 0,
+ bitmap.GetWidth(), bitmap.GetHeight() );
- SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable
+ SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable
}
GdkVisual *visual = gdk_window_get_visual( bitmap.GetPixmap() );
data[pos+2] = pixel & 0xff;
}
- if (gdk_image_mask)
- {
- int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j );
- if (mask_pixel == 0)
- {
+ if (gdk_image_mask)
+ {
+ int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j );
+ if (mask_pixel == 0)
+ {
data[pos] = 16;
data[pos+1] = 16;
data[pos+2] = 16;
- }
- }
+ }
+ }
pos += 3;
}
projects / wxWidgets.git / commitdiff
