本文整理汇总了C++中CFX_DIBitmap::GetScanline方法的典型用法代码示例。如果您正苦于以下问题：C++ CFX_DIBitmap::GetScanline方法的具体用法？C++ CFX_DIBitmap::GetScanline怎么用？C++ CFX_DIBitmap::GetScanline使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CFX_DIBitmap的用法示例。
在下文中一共展示了CFX_DIBitmap::GetScanline方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Continue
FX_BOOL CFX_ImageTransformer::Continue(IFX_Pause* pPause)
{
if (m_Status == 1) {
if (m_Stretcher.Continue(pPause)) {
return TRUE;
}
if (m_Storer.GetBitmap()) {
m_Storer.Replace(m_Storer.GetBitmap()->SwapXY(m_pMatrix->c > 0, m_pMatrix->b < 0));
}
return FALSE;
} else if (m_Status == 2) {
return m_Stretcher.Continue(pPause);
} else if (m_Status != 3) {
return FALSE;
}
if (m_Stretcher.Continue(pPause)) {
return TRUE;
}
int stretch_width = m_StretchClip.Width();
int stretch_height = m_StretchClip.Height();
if (m_Storer.GetBitmap() == NULL) {
return FALSE;
}
FX_LPCBYTE stretch_buf = m_Storer.GetBitmap()->GetBuffer();
FX_LPCBYTE stretch_buf_mask = NULL;
if (m_Storer.GetBitmap()->m_pAlphaMask) {
stretch_buf_mask = m_Storer.GetBitmap()->m_pAlphaMask->GetBuffer();
}
int stretch_pitch = m_Storer.GetBitmap()->GetPitch();
CFX_DIBitmap* pTransformed = FX_NEW CFX_DIBitmap;
if (!pTransformed) {
return FALSE;
}
FXDIB_Format transformF = _GetTransformedFormat(m_Stretcher.m_pSource);
if (!pTransformed->Create(m_ResultWidth, m_ResultHeight, transformF)) {
delete pTransformed;
return FALSE;
}
pTransformed->Clear(0);
if (pTransformed->m_pAlphaMask) {
pTransformed->m_pAlphaMask->Clear(0);
}
CFX_AffineMatrix result2stretch(1.0f, 0.0f, 0.0f, 1.0f, (FX_FLOAT)(m_ResultLeft), (FX_FLOAT)(m_ResultTop));
result2stretch.Concat(m_dest2stretch);
result2stretch.TranslateI(-m_StretchClip.left, -m_StretchClip.top);
if (stretch_buf_mask == NULL && pTransformed->m_pAlphaMask) {
pTransformed->m_pAlphaMask->Clear(0xff000000);
} else if (pTransformed->m_pAlphaMask) {
int stretch_pitch_mask = m_Storer.GetBitmap()->m_pAlphaMask->GetPitch();
if (!(m_Flags & FXDIB_DOWNSAMPLE) && !(m_Flags & FXDIB_BICUBIC_INTERPOL)) {
CFX_BilinearMatrix result2stretch_fix(result2stretch, 8);
for (int row = 0; row < m_ResultHeight; row ++) {
FX_BYTE* dest_pos_mask = (FX_BYTE*)pTransformed->m_pAlphaMask->GetScanline(row);
for (int col = 0; col < m_ResultWidth; col ++) {
int src_col_l, src_row_l, res_x, res_y;
result2stretch_fix.Transform(col, row, src_col_l, src_row_l, res_x, res_y);
if (src_col_l >= 0 && src_col_l <= stretch_width && src_row_l >= 0 && src_row_l <= stretch_height) {
if (src_col_l == stretch_width) {
src_col_l--;
}
if (src_row_l == stretch_height) {
src_row_l--;
}
int src_col_r = src_col_l + 1;
int src_row_r = src_row_l + 1;
if (src_col_r == stretch_width) {
src_col_r--;
}
if (src_row_r == stretch_height) {
src_row_r--;
}
int row_offset_l = src_row_l * stretch_pitch_mask;
int row_offset_r = src_row_r * stretch_pitch_mask;
*dest_pos_mask = _bilinear_interpol(stretch_buf_mask, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, 1, 0);
}
dest_pos_mask++;
}
}
} else if (m_Flags & FXDIB_BICUBIC_INTERPOL) {
CFX_BilinearMatrix result2stretch_fix(result2stretch, 8);
int pos_pixel[8];
for (int row = 0; row < m_ResultHeight; row ++) {
FX_BYTE* dest_pos_mask = (FX_BYTE*)pTransformed->m_pAlphaMask->GetScanline(row);
for (int col = 0; col < m_ResultWidth; col ++) {
int src_col_l, src_row_l, res_x, res_y;
result2stretch_fix.Transform(col, row, src_col_l, src_row_l, res_x, res_y);
if (src_col_l >= 0 && src_col_l <= stretch_width && src_row_l >= 0 && src_row_l <= stretch_height) {
int u_w[4], v_w[4];
if (src_col_l == stretch_width) {
src_col_l--;
}
if (src_row_l == stretch_height) {
src_row_l--;
}
_bicubic_get_pos_weight(pos_pixel, u_w, v_w, src_col_l, src_row_l, res_x, res_y, stretch_width, stretch_height);
*dest_pos_mask = _bicubic_interpol(stretch_buf_mask, stretch_pitch_mask, pos_pixel, u_w, v_w, res_x, res_y, 1, 0);
}
dest_pos_mask++;
}
}
//.........这里部分代码省略.........