Initial commit

engines/bagel/hodjnpodj/hnplibs/dibapi.h

@@ -0,0 +1,151 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HODJNPODJ_HNPLIBS_DIBAPI_H
+#define HODJNPODJ_HNPLIBS_DIBAPI_H
+
+#include "graphics/managed_surface.h"
+#include "bagel/afxwin.h"
+
+namespace Bagel {
+namespace HodjNPodj {
+
+/* Handle to a DIB */
+typedef Graphics::ManagedSurface *HDIB;
+
+/* DIB constants */
+#define PALVERSION   0x300
+
+/* DIB Macros*/
+#define IS_WIN30_DIB(lpbi)      ( true )
+
+#define RECTWIDTH(lpRect)       ((lpRect)->right - (lpRect)->left)
+#define RECTHEIGHT(lpRect)      ((lpRect)->bottom - (lpRect)->top)
+#define DeleteBitmap(hbm)       DeleteObject((HGDIOBJ)(HBITMAP)(hbm))
+#define SelectBitmap(hdc, hbm)  ((HBITMAP)SelectObject((hdc),(HGDIOBJ)(HBITMAP)(hbm)))
+
+// WIDTHBYTES performs uint32-aligning of DIB scanlines.  The "bits"
+// parameter is the bit count for the scanline (biWidth * biBitCount),
+// and this macro returns the number of uint32-aligned bytes needed
+// to hold those bits.
+
+#define WIDTHBYTES(bits)    (((bits) + 31) / 32 * 4)
+
+/* Function prototypes */
+bool      PaintDIB(HDC, LPRECT, HDIB, LPRECT, CPalette *pPal);
+
+
+/**
+ * This function creates a palette from a DIB by allocating memory for the
+ * logical palette, reading and storing the colors from the DIB's color table
+ * into the logical palette, creating a palette from this logical palette,
+ * and then returning the palette's handle. This allows the DIB to be
+ * displayed using the best possible colors (important for DIBs with 256 or
+ * more colors).
+ * @param hDIB		Specifies the DIB
+ * @return		Specifies the palette
+ */
+extern bool CreateDIBPalette(HDIB hDIB, CPalette *cPal);
+
+/**
+ * This function calculates the address of the DIB's bits and returns a
+ * pointer to the DIB bits.
+ * @param hDIB		Pointer to packed-DIB memory block
+ * @return		Pointer to the DIB bits
+ */
+extern char *FindDIBBits(HDIB lpbi);
+
+/**
+ * This function gets the width of the bitmap.
+ * @param lpbi		Bitmap pointer
+ * @return			Width
+ */
+extern uint32 DIBWidth(HDIB lpDIB);
+
+/**
+ * This function gets the height of the bitmap.
+ * @param lpbi		Bitmap pointer
+ * @return			Height
+ */
+extern uint32 DIBHeight(HDIB lpDIB);
+
+/**
+ * Gets the size required to store the DIB's palette
+ * @param lpbi		Pointer to packed-DIB memory block
+ * @return		Size of the color palette of the DIB
+ */
+extern uint16 PaletteSize(HDIB lpDIB);
+
+/**
+ * Gets the number of colors in the palette
+ * @param lpbi		Pointer to packed-DIB memory block
+ * @return		Number of the palette colors.
+ */
+extern uint16 DIBNumColors(HDIB lpDIB);
+
+HANDLE    CopyHandle(HANDLE h);
+
+/**
+ * Convert a device-independent bitmap (DIB) to a device-dependent
+ * bitmap (DDB).  The DIB must be packed; i.e. same as a .BMP file.
+ * @return		A handle to the DDB (HBITMAP).  If an error occurs, the return
+ * value will be nullptr.
+ */
+extern HBITMAP DIBtoBitmap(HDC hDC, HPALETTE hPal, HDIB hDib);
+
+/**
+ * Convert a device-independent bitmap (DIB) to a device-dependent
+ * bitmap (DDB), with the desired color palette mapped to the context.
+ * The DIB must be packed; i.e. same as a .BMP file.
+ * @return		A handle to the Bitmap (CBitmap *).  If an error occurs, the return
+ * value will be nullptr.
+ */
+extern CBitmap *ConvertDIB(CDC *pDC, HDIB hDIB, CPalette *pPal);
+
+/**
+ * Reads in the specified DIB file into a global chunk of memory.
+ * @param file		Bitmap file to read
+ * @return			A handle to a dib (hDIB) if successful.
+ * nullptr if an error occurs.
+ */
+extern HDIB ReadDIBFile(CFile &file);
+
+/**
+ * Reads in the specified DIB from a resource entry.
+ * @param pszPathName	Resource name
+ * @return		A handle to a dib (hDIB) if successful.
+ * nullptr if an error occurs.
+ */
+extern HDIB ReadDIBResource(const char *pszPathName);
+
+void      InitBitmapInfoHeader(LPBITMAPINFOHEADER lpBmInfoHdr,
+                                       uint32 dwWidth,
+                                       uint32 dwHeight,
+                                       int nBPP);
+
+void      ShowMemoryInfo(const char *chMessage, const char *chTitle);
+
+CPalette *DuplicatePalette(CPalette *pPal);
+
+} // namespace HodjNPodj
+} // namespace Bagel
+
+#endif