fix creation of bitmap from image with requested depth 32

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69617 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/gtk/bitmap.cpp b/src/gtk/bitmap.cpp
index 606529c229c965f8d515c5d8883dd98b41a7e943..ea8cf8d88f0c87796c35c80827b2767a975364ce 100644 (file)
--- a/src/gtk/bitmap.cpp
+++ b/src/gtk/bitmap.cpp
@@ -324,13 +324,11 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth)
     UnRef();
 
     wxCHECK_MSG( image.IsOk(), false, wxT("invalid image") );
     UnRef();
 
     wxCHECK_MSG( image.IsOk(), false, wxT("invalid image") );

-    wxCHECK_MSG( depth == -1 || depth == 1, false, wxT("invalid bitmap depth") );

 
     if (image.GetWidth() <= 0 || image.GetHeight() <= 0)
         return false;
 
 
     if (image.GetWidth() <= 0 || image.GetHeight() <= 0)
         return false;
 

-    // create pixbuf if image has alpha and requested depth is compatible
-    if (image.HasAlpha() && (depth == -1 || depth == 32))
+    if (depth == 32 || (depth == -1 && image.HasAlpha()))

         return CreateFromImageAsPixbuf(image);
 
     // otherwise create pixmap, if alpha is present it will be converted to mask
         return CreateFromImageAsPixbuf(image);
 
     // otherwise create pixmap, if alpha is present it will be converted to mask


@@ -422,8 +420,6 @@ bool wxBitmap::CreateFromImageAsPixmap(const wxImage& image, int depth)
 
 bool wxBitmap::CreateFromImageAsPixbuf(const wxImage& image)
 {
 
 bool wxBitmap::CreateFromImageAsPixbuf(const wxImage& image)
 {

-    wxASSERT(image.HasAlpha());
-

     int width = image.GetWidth();
     int height = image.GetHeight();
 
     int width = image.GetWidth();
     int height = image.GetHeight();
 


@@ -441,12 +437,13 @@ bool wxBitmap::CreateFromImageAsPixbuf(const wxImage& image)
 
     for (int y = 0; y < height; y++, out += rowpad)
     {
 
     for (int y = 0; y < height; y++, out += rowpad)
     {

-        for (int x = 0; x < width; x++, alpha++, out += 4, in += 3)
+        for (int x = 0; x < width; x++, out += 4, in += 3)

         {
             out[0] = in[0];
             out[1] = in[1];
             out[2] = in[2];
         {
             out[0] = in[0];
             out[1] = in[1];
             out[2] = in[2];

-            out[3] = *alpha;
+            if (alpha)
+                out[3] = *alpha++;

         }
     }
 
         }
     }