我正在尝试翻转缓冲区,但缓冲区没有得到完全处理。是像素缓冲区,我基本上需要垂直翻转它。谁能发现我做错了什么?提前致谢。
void flipVertically(unsigned int* buffer, const unsigned int width, const unsigned int height)
{
const unsigned int rowWidth = width; // Length of a row
const unsigned int rows = height / 2; // Iterate only half the buffer to get a full flip
unsigned int* tempRow = (unsigned int*)malloc(rowWidth);
for (int rowIndex = 0; rowIndex < rows; rowIndex++)
{
memcpy(tempRow, buffer + (rowIndex * rowWidth), rowWidth);
memcpy(buffer + (rowIndex * rowWidth), buffer + (height - rowIndex - 1) * rowWidth, rowWidth);
memcpy(buffer + (height - rowIndex - 1) * rowWidth, tempRow, rowWidth);
}
free(tempRow);
}