imgcodecs: fix 4 reading channel bmp images

7 years ago · 14b686cdc7
parent 0202e52747
commit 14b686cdc7
1 changed files with 4 additions and 2 deletions
--- a/modules/highgui/src/grfmt_bmp.cpp
+++ b/modules/highgui/src/grfmt_bmp.cpp
@ -473,8 +473,10 @@ decode_rle8_bad: ;

                if( !color )
                    icvCvt_BGRA2Gray_8u_C4C1R( src, 0, data, 0, cvSize(m_width,1) );
-                else
-                    icvCvt_BGRA2BGR_8u_C4C3R( src, 0, data, 0, cvSize(m_width,1) );
+                else if( img.channels() == 3 )
+                    icvCvt_BGRA2BGR_8u_C4C3R(src, 0, data, 0, cvSize(m_width, 1));
+                else if( img.channels() == 4 )
+                    memcpy(data, src, m_width * 4);
            }
            result = true;
            break;