1 files changed, 2 insertions, 12 deletions

diff --git a/ue2/imgsynth2/cpixelformat_bgr555.cpp b/ue2/imgsynth2/cpixelformat_bgr555.cpp
index 2f98cc7..657c148 100644
--- a/ue2/imgsynth2/cpixelformat_bgr555.cpp
+++ b/ue2/imgsynth2/cpixelformat_bgr555.cpp
@@ -17,15 +17,10 @@ void CPixelFormat_BGR555::getPixel(RGBPIXEL& pixel, uint32_t x, uint32_t y)
   if (m_bitmap->getPixelData() == NULL)
     throw PixelFormatError("No pixelbuffer allocated.");
 
-  /* calc rowsize - boundary is 32 */
-  uint32_t rowsize = 4 * static_cast<uint32_t>(
-    ((getBitCount() * m_bitmap->getWidth()) + 31) / 32
-  );
-
   /* if the y-coordinates are mirrored */
   if (m_bitmap->isMirrored())
     y = m_bitmap->getHeight() - y - 1;
-  uint32_t offset = y * rowsize + x * (4 * getBitCount() / 32);
+  uint32_t offset = y * m_bitmap->getRowSize() + x * (4 * getBitCount() / 32);
 
   /* boundary check */
   if (offset + getBitCount()/8 > m_bitmap->getPixelDataSize())
@@ -45,15 +40,10 @@ void CPixelFormat_BGR555::setPixel(const RGBPIXEL& pixel, uint32_t x, uint32_t y
   if (m_bitmap->getPixelData() == NULL)
     throw PixelFormatError("No pixelbuffer allocated.");
 
-  /* calc rowsize - boundary is 32 */
-  uint32_t rowsize = 4 * static_cast<uint32_t>(
-    ((getBitCount() * m_bitmap->getWidth()) + 31) / 32
-  );
-
   /* if the y-coordinates are mirrored */
   if (m_bitmap->isMirrored())
     y = m_bitmap->getHeight() - y - 1;
-  uint32_t offset = y * rowsize + x * (4 * getBitCount() / 32);
+  uint32_t offset = y * m_bitmap->getRowSize() + x * (4 * getBitCount() / 32);
 
   /* boundary check */
   if (offset + getBitCount()/8 > m_bitmap->getPixelDataSize())