wxXPMDecoder decoder;
(*this) = decoder.ReadData(xpmData);
- return Ok();
+ return IsOk();
#else
return false;
#endif
{
wxImage image;
- wxCHECK_MSG( Ok(), image, wxS("invalid image") );
+ wxCHECK_MSG( IsOk(), image, wxS("invalid image") );
long height = M_IMGDATA->m_height;
long width = M_IMGDATA->m_width;
{
wxImage image;
- wxCHECK_MSG( Ok(), image, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), image, wxT("invalid image") );
image.m_refData = CloneRefData(m_refData);
wxImage image;
- wxCHECK_MSG( Ok(), image, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), image, wxT("invalid image") );
// can't scale to/from 0 size
wxCHECK_MSG( (xFactor > 0) && (yFactor > 0), image,
{
wxImage image;
- wxCHECK_MSG( Ok(), image, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), image, wxT("invalid image") );
// can't scale to/from 0 size
wxCHECK_MSG( (width > 0) && (height > 0), image,
if ( old_width == width && old_height == height )
return *this;
- // resample the image using either the nearest neighbourhood, bilinear or
- // bicubic method as specified
- switch ( quality )
+ if (quality == wxIMAGE_QUALITY_HIGH)
{
- case wxIMAGE_QUALITY_BICUBIC:
- case wxIMAGE_QUALITY_BILINEAR:
- // both of these algorithms should be used for up-sampling the
- // image only, when down-sampling always use box averaging for best
- // results
- if ( width < old_width && height < old_height )
- image = ResampleBox(width, height);
- else if ( quality == wxIMAGE_QUALITY_BILINEAR )
- image = ResampleBilinear(width, height);
- else if ( quality == wxIMAGE_QUALITY_BICUBIC )
- image = ResampleBicubic(width, height);
- break;
+ quality = (width < old_width && height < old_height)
+ ? wxIMAGE_QUALITY_BOX_AVERAGE
+ : wxIMAGE_QUALITY_BICUBIC;
+ }
+ // Resample the image using the method as specified.
+ switch ( quality )
+ {
case wxIMAGE_QUALITY_NEAREST:
if ( old_width % width == 0 && old_width >= width &&
old_height % height == 0 && old_height >= height )
image = ResampleNearest(width, height);
break;
+
+ case wxIMAGE_QUALITY_BILINEAR:
+ image = ResampleBilinear(width, height);
+ break;
+
+ case wxIMAGE_QUALITY_BICUBIC:
+ image = ResampleBicubic(width, height);
+ break;
+
+ case wxIMAGE_QUALITY_BOX_AVERAGE:
+ image = ResampleBox(width, height);
+ break;
}
// If the original image has a mask, apply the mask to the new image
averaged_pixels = 0;
sum_r = sum_g = sum_b = sum_a = 0.0;
- for ( int j = int(src_y - scale_factor_y/2.0 + 1);
- j <= int(src_y + scale_factor_y_2);
+ for ( int j = int(src_y - scale_factor_y/2.0 + 1), k = j;
+ j <= int(src_y + scale_factor_y_2) || j < k + 2;
j++ )
{
// We don't care to average pixels that don't exist (edges)
if ( j < 0 || j > M_IMGDATA->m_height - 1 )
continue;
- for ( int i = int(src_x - scale_factor_x/2.0 + 1);
- i <= src_x + scale_factor_x_2;
+ for ( int i = int(src_x - scale_factor_x/2.0 + 1), e = i;
+ i <= src_x + scale_factor_x_2 || i < e + 2;
i++ )
{
// Don't average edge pixels
{
wxImage ret_image(MakeEmptyClone());
- wxCHECK( ret_image.Ok(), ret_image );
+ wxCHECK( ret_image.IsOk(), ret_image );
const unsigned char* src_data = M_IMGDATA->m_data;
unsigned char* dst_data = ret_image.GetData();
{
wxImage ret_image(MakeEmptyClone());
- wxCHECK( ret_image.Ok(), ret_image );
+ wxCHECK( ret_image.IsOk(), ret_image );
const unsigned char* src_data = M_IMGDATA->m_data;
unsigned char* dst_data = ret_image.GetData();
{
wxImage image(MakeEmptyClone(Clone_SwapOrientation));
- wxCHECK( image.Ok(), image );
+ wxCHECK( image.IsOk(), image );
long height = M_IMGDATA->m_height;
long width = M_IMGDATA->m_width;
}
unsigned char *data = image.GetData();
- const unsigned char *source_data = M_IMGDATA->m_data;
unsigned char *target_data;
- unsigned char *alpha_data = image.GetAlpha();
- const unsigned char *source_alpha = M_IMGDATA->m_alpha;
- unsigned char *target_alpha = 0 ;
- for (long j = 0; j < height; j++)
+ // we rotate the image in 21-pixel (63-byte) wide strips
+ // to make better use of cpu cache - memory transfers
+ // (note: while much better than single-pixel "strips",
+ // our vertical strips will still generally straddle 64-byte cachelines)
+ for (long ii = 0; ii < width; )
{
- for (long i = 0; i < width; i++)
+ long next_ii = wxMin(ii + 21, width);
+
+ for (long j = 0; j < height; j++)
{
- if (clockwise)
- {
- target_data = data + (((i+1)*height) - j - 1)*3;
- if (source_alpha)
- target_alpha = alpha_data + (((i+1)*height) - j - 1);
- }
- else
+ const unsigned char *source_data
+ = M_IMGDATA->m_data + (j*width + ii)*3;
+
+ for (long i = ii; i < next_ii; i++)
{
- target_data = data + ((height*(width-1)) + j - (i*height))*3;
- if (source_alpha)
- target_alpha = alpha_data + ((height*(width-1)) + j - (i*height));
+ if ( clockwise )
+ {
+ target_data = data + ((i + 1)*height - j - 1)*3;
+ }
+ else
+ {
+ target_data = data + (height*(width - 1 - i) + j)*3;
+ }
+ memcpy( target_data, source_data, 3 );
+ source_data += 3;
}
- memcpy( target_data, source_data, 3 );
- source_data += 3;
+ }
+
+ ii = next_ii;
+ }
+
+ const unsigned char *source_alpha = M_IMGDATA->m_alpha;
+
+ if ( source_alpha )
+ {
+ unsigned char *alpha_data = image.GetAlpha();
+ unsigned char *target_alpha = 0 ;
+
+ for (long ii = 0; ii < width; )
+ {
+ long next_ii = wxMin(ii + 64, width);
- if (source_alpha)
+ for (long j = 0; j < height; j++)
{
- memcpy( target_alpha, source_alpha, 1 );
- source_alpha += 1;
+ source_alpha = M_IMGDATA->m_alpha + j*width + ii;
+
+ for (long i = ii; i < next_ii; i++)
+ {
+ if ( clockwise )
+ {
+ target_alpha = alpha_data + (i+1)*height - j - 1;
+ }
+ else
+ {
+ target_alpha = alpha_data + height*(width - i - 1) + j;
+ }
+
+ *target_alpha = *source_alpha++;
+ }
}
+
+ ii = next_ii;
}
}
{
wxImage image(MakeEmptyClone());
- wxCHECK( image.Ok(), image );
+ wxCHECK( image.IsOk(), image );
long height = M_IMGDATA->m_height;
long width = M_IMGDATA->m_width;
{
wxImage image(MakeEmptyClone());
- wxCHECK( image.Ok(), image );
+ wxCHECK( image.IsOk(), image );
long height = M_IMGDATA->m_height;
long width = M_IMGDATA->m_width;
{
wxImage image;
- wxCHECK_MSG( Ok(), image, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), image, wxT("invalid image") );
wxCHECK_MSG( (rect.GetLeft()>=0) && (rect.GetTop()>=0) &&
(rect.GetRight()<=GetWidth()) && (rect.GetBottom()<=GetHeight()),
{
wxImage image;
- wxCHECK_MSG( Ok(), image, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), image, wxT("invalid image") );
wxCHECK_MSG( (size.GetWidth() > 0) && (size.GetHeight() > 0), image, wxT("invalid size") );
int width = GetWidth(), height = GetHeight();
void wxImage::Paste( const wxImage &image, int x, int y )
{
- wxCHECK_RET( Ok(), wxT("invalid image") );
- wxCHECK_RET( image.Ok(), wxT("invalid image") );
+ wxCHECK_RET( IsOk(), wxT("invalid image") );
+ wxCHECK_RET( image.IsOk(), wxT("invalid image") );
AllocExclusive();
if (width < 1) return;
if (height < 1) return;
- if ((!HasMask() && !image.HasMask()) ||
- (HasMask() && !image.HasMask()) ||
- ((HasMask() && image.HasMask() &&
+ // If we can, copy the data using memcpy() as this is the fastest way. But
+ // for this the image being pasted must have "compatible" mask with this
+ // one meaning that either it must not have one at all or it must use the
+ // same masked colour.
+ if ( !image.HasMask() ||
+ ((HasMask() &&
(GetMaskRed()==image.GetMaskRed()) &&
(GetMaskGreen()==image.GetMaskGreen()) &&
- (GetMaskBlue()==image.GetMaskBlue()))))
+ (GetMaskBlue()==image.GetMaskBlue()))) )
{
const unsigned char* source_data = image.GetData() + 3*(xx + yy*image.GetWidth());
int source_step = image.GetWidth()*3;
void wxImage::Replace( unsigned char r1, unsigned char g1, unsigned char b1,
unsigned char r2, unsigned char g2, unsigned char b2 )
{
- wxCHECK_RET( Ok(), wxT("invalid image") );
+ wxCHECK_RET( IsOk(), wxT("invalid image") );
AllocExclusive();
{
wxImage image(MakeEmptyClone());
- wxCHECK( image.Ok(), image );
+ wxCHECK( image.IsOk(), image );
const unsigned char *src = M_IMGDATA->m_data;
unsigned char *dest = image.GetData();
{
wxImage image;
- wxCHECK_MSG( Ok(), image, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), image, wxT("invalid image") );
image.Create( M_IMGDATA->m_width, M_IMGDATA->m_height, false );
int wxImage::GetWidth() const
{
- wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), 0, wxT("invalid image") );
return M_IMGDATA->m_width;
}
int wxImage::GetHeight() const
{
- wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), 0, wxT("invalid image") );
return M_IMGDATA->m_height;
}
long wxImage::XYToIndex(int x, int y) const
{
- if ( Ok() &&
+ if ( IsOk() &&
x >= 0 && y >= 0 &&
x < M_IMGDATA->m_width && y < M_IMGDATA->m_height )
{
void wxImage::SetRGB( const wxRect& rect_, unsigned char r, unsigned char g, unsigned char b )
{
- wxCHECK_RET( Ok(), wxT("invalid image") );
+ wxCHECK_RET( IsOk(), wxT("invalid image") );
AllocExclusive();
unsigned char *wxImage::GetData() const
{
- wxCHECK_MSG( Ok(), (unsigned char *)NULL, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), (unsigned char *)NULL, wxT("invalid image") );
return M_IMGDATA->m_data;
}
void wxImage::SetData( unsigned char *data, bool static_data )
{
- wxCHECK_RET( Ok(), wxT("invalid image") );
+ wxCHECK_RET( IsOk(), wxT("invalid image") );
wxImageRefData *newRefData = new wxImageRefData();
void wxImage::SetAlpha( unsigned char *alpha, bool static_data )
{
- wxCHECK_RET( Ok(), wxT("invalid image") );
+ wxCHECK_RET( IsOk(), wxT("invalid image") );
AllocExclusive();
unsigned char *wxImage::GetAlpha() const
{
- wxCHECK_MSG( Ok(), (unsigned char *)NULL, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), (unsigned char *)NULL, wxT("invalid image") );
return M_IMGDATA->m_alpha;
}
void wxImage::SetMaskColour( unsigned char r, unsigned char g, unsigned char b )
{
- wxCHECK_RET( Ok(), wxT("invalid image") );
+ wxCHECK_RET( IsOk(), wxT("invalid image") );
AllocExclusive();
bool wxImage::GetOrFindMaskColour( unsigned char *r, unsigned char *g, unsigned char *b ) const
{
- wxCHECK_MSG( Ok(), false, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), false, wxT("invalid image") );
if (M_IMGDATA->m_hasMask)
{
unsigned char wxImage::GetMaskRed() const
{
- wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), 0, wxT("invalid image") );
return M_IMGDATA->m_maskRed;
}
unsigned char wxImage::GetMaskGreen() const
{
- wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), 0, wxT("invalid image") );
return M_IMGDATA->m_maskGreen;
}
unsigned char wxImage::GetMaskBlue() const
{
- wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), 0, wxT("invalid image") );
return M_IMGDATA->m_maskBlue;
}
void wxImage::SetMask( bool mask )
{
- wxCHECK_RET( Ok(), wxT("invalid image") );
+ wxCHECK_RET( IsOk(), wxT("invalid image") );
AllocExclusive();
bool wxImage::HasMask() const
{
- wxCHECK_MSG( Ok(), false, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), false, wxT("invalid image") );
return M_IMGDATA->m_hasMask;
}
bool wxImage::HasPalette() const
{
- if (!Ok())
+ if (!IsOk())
return false;
- return M_IMGDATA->m_palette.Ok();
+ return M_IMGDATA->m_palette.IsOk();
}
const wxPalette& wxImage::GetPalette() const
{
- wxCHECK_MSG( Ok(), wxNullPalette, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), wxNullPalette, wxT("invalid image") );
return M_IMGDATA->m_palette;
}
void wxImage::SetPalette(const wxPalette& palette)
{
- wxCHECK_RET( Ok(), wxT("invalid image") );
+ wxCHECK_RET( IsOk(), wxT("invalid image") );
AllocExclusive();
wxBitmapType WXUNUSED_UNLESS_STREAMS(type) ) const
{
#if HAS_FILE_STREAMS
- wxCHECK_MSG( Ok(), false, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), false, wxT("invalid image") );
((wxImage*)this)->SetOption(wxIMAGE_OPTION_FILENAME, filename);
const wxString& WXUNUSED_UNLESS_STREAMS(mimetype) ) const
{
#if HAS_FILE_STREAMS
- wxCHECK_MSG( Ok(), false, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), false, wxT("invalid image") );
((wxImage*)this)->SetOption(wxIMAGE_OPTION_FILENAME, filename);
{
#if HAS_FILE_STREAMS
wxImageFileInputStream stream(name);
- if (stream.Ok())
+ if (stream.IsOk())
return GetImageCount(stream, type);
#endif
const unsigned maxWidth = GetOptionInt(wxIMAGE_OPTION_MAX_WIDTH),
maxHeight = GetOptionInt(wxIMAGE_OPTION_MAX_HEIGHT);
+ // Preserve the original stream position if possible to rewind back to it
+ // if we failed to load the file -- maybe the next handler that we try can
+ // succeed after us then.
+ wxFileOffset posOld = wxInvalidOffset;
+ if ( stream.IsSeekable() )
+ posOld = stream.TellI();
+
if ( !handler.LoadFile(this, stream, true/*verbose*/, index) )
+ {
+ if ( posOld != wxInvalidOffset )
+ stream.SeekI(posOld);
+
return false;
+ }
// rescale the image to the specified size if needed
if ( maxWidth || maxHeight )
bool wxImage::SaveFile( wxOutputStream& stream, wxBitmapType type ) const
{
- wxCHECK_MSG( Ok(), false, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), false, wxT("invalid image") );
wxImageHandler *handler = FindHandler(type);
if ( !handler )
bool wxImage::SaveFile( wxOutputStream& stream, const wxString& mimetype ) const
{
- wxCHECK_MSG( Ok(), false, wxT("invalid image") );
+ wxCHECK_MSG( IsOk(), false, wxT("invalid image") );
wxImageHandler *handler = FindHandlerMime(mimetype);
if ( !handler )
projects / wxWidgets.git / blobdiff