Added 32-bit (UCS-4) wxUString class

[wxWidgets.git] / src / png / pngwtran.c

diff --git a/src/png/pngwtran.c b/src/png/pngwtran.c
index 94d8ecc1cecfcf0a5fab71d52d10859e70a7c4db..0372fe656ced74cb4813d345b566ea01416001aa 100644 (file)
--- a/src/png/pngwtran.c
+++ b/src/png/pngwtran.c
@@ -1,9 +1,9 @@
 
 /* pngwtran.c - transforms the data in a row for PNG writers
  *
 
 /* pngwtran.c - transforms the data in a row for PNG writers
  *

- * libpng version 1.2.7 - September 12, 2004
+ * Last changed in libpng 1.2.9 April 14, 2006

  * For conditions of distribution and use, see copyright notice in png.h
  * For conditions of distribution and use, see copyright notice in png.h

- * Copyright (c) 1998-2004 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2006 Glenn Randers-Pehrson

  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
  */
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
  */


@@ -60,14 +60,14 @@ png_do_write_transformations(png_structp png_ptr)
       png_do_shift(&(png_ptr->row_info), png_ptr->row_buf + 1,
          &(png_ptr->shift));
 #endif
       png_do_shift(&(png_ptr->row_info), png_ptr->row_buf + 1,
          &(png_ptr->shift));
 #endif

-#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED)
-   if (png_ptr->transformations & PNG_INVERT_ALPHA)
-      png_do_write_invert_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1);
-#endif

 #if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED)
    if (png_ptr->transformations & PNG_SWAP_ALPHA)
       png_do_write_swap_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1);
 #endif
 #if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED)
    if (png_ptr->transformations & PNG_SWAP_ALPHA)
       png_do_write_swap_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1);
 #endif

+#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED)
+   if (png_ptr->transformations & PNG_INVERT_ALPHA)
+      png_do_write_invert_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1);
+#endif

 #if defined(PNG_WRITE_BGR_SUPPORTED)
    if (png_ptr->transformations & PNG_BGR)
       png_do_bgr(&(png_ptr->row_info), png_ptr->row_buf + 1);
 #if defined(PNG_WRITE_BGR_SUPPORTED)
    if (png_ptr->transformations & PNG_BGR)
       png_do_bgr(&(png_ptr->row_info), png_ptr->row_buf + 1);


@@ -439,9 +439,12 @@ png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
             png_uint_32 row_width = row_info->width;
             for (i = 0, sp = dp = row; i < row_width; i++)
             {
             png_uint_32 row_width = row_info->width;
             for (i = 0, sp = dp = row; i < row_width; i++)
             {

+               /* does nothing

                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);

+               */
+               sp+=3; dp = sp;

                *(dp++) = (png_byte)(255 - *(sp++));
             }
          }
                *(dp++) = (png_byte)(255 - *(sp++));
             }
          }


@@ -454,12 +457,15 @@ png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
 
             for (i = 0, sp = dp = row; i < row_width; i++)
             {
 
             for (i = 0, sp = dp = row; i < row_width; i++)
             {

+               /* does nothing

                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);

+               */
+               sp+=6; dp = sp;

                *(dp++) = (png_byte)(255 - *(sp++));
                *(dp++) = (png_byte)(255 - *(sp++));
             }
                *(dp++) = (png_byte)(255 - *(sp++));
                *(dp++) = (png_byte)(255 - *(sp++));
             }


@@ -489,8 +495,11 @@ png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
 
             for (i = 0, sp = dp = row; i < row_width; i++)
             {
 
             for (i = 0, sp = dp = row; i < row_width; i++)
             {

+               /* does nothing

                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);
                *(dp++) = *(sp++);

+               */
+               sp+=2; dp = sp;

                *(dp++) = (png_byte)(255 - *(sp++));
                *(dp++) = (png_byte)(255 - *(sp++));
             }
                *(dp++) = (png_byte)(255 - *(sp++));
                *(dp++) = (png_byte)(255 - *(sp++));
             }