diff options
Diffstat (limited to 'plugins/NewStory/src/dib.cpp')
| -rw-r--r-- | plugins/NewStory/src/dib.cpp | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/plugins/NewStory/src/dib.cpp b/plugins/NewStory/src/dib.cpp new file mode 100644 index 0000000000..c54ef944fa --- /dev/null +++ b/plugins/NewStory/src/dib.cpp @@ -0,0 +1,176 @@ +#include "stdafx.h" + +simpledib::dib::dib() +{ + memset(this, 0, sizeof(*this)); +} + +simpledib::dib::~dib() +{ + destroy(); +} + +void simpledib::dib::destroy(bool del_bmp) +{ + if (m_hdc && m_ownData) { + SelectObject(m_hdc, m_oldBmp); + if (del_bmp) + DeleteObject(m_bmp); + DeleteDC(m_hdc); + } + else if (m_restore_view_port && m_hdc) { + ::SetWindowOrgEx(m_hdc, m_oldViewPort.x, m_oldViewPort.y, NULL); + } + + memset(this, 0, sizeof(*this)); +} + +bool simpledib::dib::create(int width, int height, bool topdowndib) +{ + destroy(); + + BITMAPINFO bmp_info; + bmp_info.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); + bmp_info.bmiHeader.biWidth = width; + bmp_info.bmiHeader.biHeight = height * (topdowndib ? -1 : 1); + bmp_info.bmiHeader.biPlanes = 1; + bmp_info.bmiHeader.biBitCount = 32; + bmp_info.bmiHeader.biCompression = BI_RGB; + bmp_info.bmiHeader.biSizeImage = 0; + bmp_info.bmiHeader.biXPelsPerMeter = 0; + bmp_info.bmiHeader.biYPelsPerMeter = 0; + bmp_info.bmiHeader.biClrUsed = 0; + bmp_info.bmiHeader.biClrImportant = 0; + + m_hdc = CreateCompatibleDC(NULL); + + m_bmp = ::CreateDIBSection(m_hdc, &bmp_info, DIB_RGB_COLORS, (LPVOID *)&m_bits, 0, 0); + if (m_bits && m_bmp) { + m_oldBmp = (HBITMAP)::SelectObject(m_hdc, m_bmp); + } + else { + DeleteDC(m_hdc); + m_hdc = nullptr; + } + + if (!m_hdc) + return false; + + m_width = width; + m_height = height; + m_ownData = true; + return true; +} + +/* +bool simpledib::dib::create( HDC hdc, HBITMAP bmp, LPRGBQUAD bits, int width, int height, int shift_x, int shift_y ) +{ + destroy(); + + m_bmp = bmp; + m_hdc = hdc; + m_bits = bits; + m_width = width; + m_height = height; + m_ownData = FALSE; + + SetWindowOrgEx(m_hdc, -shift_x, -shift_y, &m_oldViewPort); + m_restore_view_port = TRUE; + return true; +} + +*/ +bool simpledib::dib::create(HDC hdc, HBITMAP bmp, LPRGBQUAD bits, int width, int height) +{ + destroy(); + + m_bmp = bmp; + m_hdc = hdc; + m_bits = bits; + m_width = width; + m_height = height; + m_ownData = m_restore_view_port = false; + return true; +} + +void simpledib::dib::clear() +{ + if (m_bits) + memset(m_bits, 0, m_width * m_height * 4); +} + +void simpledib::dib::draw(HDC hdc, int x, int y) +{ + BLENDFUNCTION bf; + bf.BlendOp = AC_SRC_OVER; + bf.BlendFlags = 0; + bf.AlphaFormat = AC_SRC_ALPHA; + bf.SourceConstantAlpha = 255; + + AlphaBlend(hdc, x, y, m_width, m_height, m_hdc, 0, 0, m_width, m_height, bf); +} + +void simpledib::dib::draw(HDC hdc, LPRECT rcDraw) +{ + BLENDFUNCTION bf; + bf.BlendOp = AC_SRC_OVER; + bf.BlendFlags = 0; + bf.AlphaFormat = AC_SRC_ALPHA; + bf.SourceConstantAlpha = 255; + + AlphaBlend(hdc, + rcDraw->left, rcDraw->top, + rcDraw->right - rcDraw->left, + rcDraw->bottom - rcDraw->top, m_hdc, + + rcDraw->left, rcDraw->top, + rcDraw->right - rcDraw->left, + rcDraw->bottom - rcDraw->top, + bf); +} + +HDC simpledib::dib::beginPaint(HDC hdc, LPRECT rcDraw) +{ + if (!create(rcDraw->right - rcDraw->left, rcDraw->bottom - rcDraw->top, true)) + return nullptr; + + m_hTargetDC = hdc; + m_rcTarget = *rcDraw; + SetWindowOrgEx(m_hdc, rcDraw->left, rcDraw->top, &m_oldViewPort); + return m_hdc; +} + +void simpledib::dib::endPaint(bool copy) +{ + SetWindowOrgEx(m_hdc, m_oldViewPort.x, m_oldViewPort.y, NULL); + + if (!copy) { + BLENDFUNCTION bf = {}; + bf.BlendOp = AC_SRC_OVER; + bf.AlphaFormat = AC_SRC_ALPHA; + bf.SourceConstantAlpha = 255; + + AlphaBlend(m_hTargetDC, m_rcTarget.left, m_rcTarget.top, + m_rcTarget.right - m_rcTarget.left, + m_rcTarget.bottom - m_rcTarget.top, m_hdc, + 0, 0, + m_rcTarget.right - m_rcTarget.left, + m_rcTarget.bottom - m_rcTarget.top, + bf); + } + else { + BitBlt(m_hTargetDC, m_rcTarget.left, m_rcTarget.top, + m_rcTarget.right - m_rcTarget.left, + m_rcTarget.bottom - m_rcTarget.top, m_hdc, 0, 0, SRCCOPY); + } + + m_hTargetDC = NULL; + destroy(); +} + +HBITMAP simpledib::dib::detach_bitmap() +{ + HBITMAP bmp = m_bmp; + destroy(false); + return bmp; +} |