396 lines
12 KiB
C
396 lines
12 KiB
C
/*
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* GDI bitmap objects
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*
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* Copyright 1993 Alexandre Julliard
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include "gdi.h"
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#include "callback.h"
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#include "dc.h"
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#include "bitmap.h"
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#include "stddebug.h"
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/* #define DEBUG_GDI */
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/* #define DEBUG_BITMAP */
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#include "debug.h"
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/* GCs used for B&W and color bitmap operations */
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GC BITMAP_monoGC = 0, BITMAP_colorGC = 0;
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extern void CLIPPING_UpdateGCRegion( DC * dc ); /* objects/clipping.c */
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/***********************************************************************
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* BITMAP_Init
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*/
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BOOL BITMAP_Init(void)
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{
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Pixmap tmpPixmap;
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/* Create the necessary GCs */
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if ((tmpPixmap = XCreatePixmap( display, rootWindow, 1, 1, 1 )))
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{
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BITMAP_monoGC = XCreateGC( display, tmpPixmap, 0, NULL );
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XSetGraphicsExposures( display, BITMAP_monoGC, False );
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XFreePixmap( display, tmpPixmap );
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}
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if (screenDepth != 1)
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{
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if ((tmpPixmap = XCreatePixmap(display, rootWindow, 1,1,screenDepth)))
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{
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BITMAP_colorGC = XCreateGC( display, tmpPixmap, 0, NULL );
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XSetGraphicsExposures( display, BITMAP_colorGC, False );
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XFreePixmap( display, tmpPixmap );
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}
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}
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return TRUE;
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}
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/***********************************************************************
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* BITMAP_BmpToImage
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*
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* Create an XImage pointing to the bitmap data.
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*/
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static XImage *BITMAP_BmpToImage( BITMAP * bmp, void * bmpData )
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{
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extern void _XInitImageFuncPtrs( XImage* );
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XImage * image;
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image = XCreateImage( display, DefaultVisualOfScreen(screen),
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bmp->bmBitsPixel, ZPixmap, 0, bmpData,
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bmp->bmWidth, bmp->bmHeight, 16, bmp->bmWidthBytes );
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if (!image) return 0;
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image->byte_order = MSBFirst;
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image->bitmap_bit_order = MSBFirst;
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image->bitmap_unit = 16;
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_XInitImageFuncPtrs(image);
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return image;
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}
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/***********************************************************************
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* CreateBitmap (GDI.48)
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*/
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HBITMAP CreateBitmap( INT width, INT height, UINT planes, UINT bpp, LPVOID bits )
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{
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BITMAPOBJ * bmpObjPtr;
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HBITMAP hbitmap;
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dprintf_gdi( stddeb, "CreateBitmap: %dx%d, %d colors\n",
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width, height, 1 << (planes*bpp) );
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/* Check parameters */
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if (!height || !width || planes != 1) return 0;
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if ((bpp != 1) && (bpp != screenDepth)) return 0;
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if (height < 0) height = -height;
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if (width < 0) width = -width;
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/* Create the BITMAPOBJ */
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hbitmap = GDI_AllocObject( sizeof(BITMAPOBJ), BITMAP_MAGIC );
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if (!hbitmap) return 0;
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bmpObjPtr = (BITMAPOBJ *) GDI_HEAP_LIN_ADDR( hbitmap );
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bmpObjPtr->size.cx = 0;
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bmpObjPtr->size.cy = 0;
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bmpObjPtr->bitmap.bmType = 0;
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bmpObjPtr->bitmap.bmWidth = width;
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bmpObjPtr->bitmap.bmHeight = height;
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bmpObjPtr->bitmap.bmPlanes = planes;
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bmpObjPtr->bitmap.bmBitsPixel = bpp;
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bmpObjPtr->bitmap.bmWidthBytes = (width * bpp + 15) / 16 * 2;
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bmpObjPtr->bitmap.bmBits = NULL;
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/* Create the pixmap */
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bmpObjPtr->pixmap = XCreatePixmap(display, rootWindow, width, height, bpp);
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if (!bmpObjPtr->pixmap)
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{
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GDI_HEAP_FREE( hbitmap );
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hbitmap = 0;
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}
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else if (bits) /* Set bitmap bits */
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SetBitmapBits( hbitmap, height * bmpObjPtr->bitmap.bmWidthBytes, bits);
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return hbitmap;
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}
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/***********************************************************************
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* CreateCompatibleBitmap (GDI.51)
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*/
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HBITMAP CreateCompatibleBitmap( HDC hdc, INT width, INT height )
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{
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DC * dc;
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dprintf_gdi(stddeb, "CreateCompatibleBitmap: %04x %dx%d\n",
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hdc, width, height );
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if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
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return CreateBitmap( width, height, 1, dc->w.bitsPerPixel, NULL );
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}
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/***********************************************************************
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* CreateBitmapIndirect (GDI.49)
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*/
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HBITMAP CreateBitmapIndirect( const BITMAP * bmp )
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{
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return CreateBitmap( bmp->bmWidth, bmp->bmHeight, bmp->bmPlanes,
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bmp->bmBitsPixel, PTR_SEG_TO_LIN( bmp->bmBits ) );
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}
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/***********************************************************************
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* GetBitmapBits (GDI.74)
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*/
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LONG GetBitmapBits( HBITMAP hbitmap, LONG count, LPSTR buffer )
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{
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BITMAPOBJ * bmp;
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LONG height;
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XImage * image;
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/* KLUDGE! */
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if (count < 0) {
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fprintf(stderr, "Negative number of bytes (%ld) passed to GetBitmapBits???\n", count );
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count = -count;
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}
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bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
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if (!bmp) return 0;
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/* Only get entire lines */
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height = count / bmp->bitmap.bmWidthBytes;
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if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight;
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dprintf_bitmap(stddeb, "GetBitmapBits: %dx%d %d colors %p fetched height: %ld\n",
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bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
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1 << bmp->bitmap.bmBitsPixel, buffer, height );
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if (!height) return 0;
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if (!(image = BITMAP_BmpToImage( &bmp->bitmap, buffer ))) return 0;
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CallTo32_LargeStack( (int(*)())XGetSubImage, 11,
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display, bmp->pixmap, 0, 0, bmp->bitmap.bmWidth,
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height, AllPlanes, ZPixmap, image, 0, 0 );
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image->data = NULL;
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XDestroyImage( image );
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return height * bmp->bitmap.bmWidthBytes;
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}
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/***********************************************************************
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* SetBitmapBits (GDI.106)
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*/
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LONG SetBitmapBits( HBITMAP hbitmap, LONG count, LPSTR buffer )
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{
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BITMAPOBJ * bmp;
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LONG height;
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XImage * image;
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/* KLUDGE! */
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if (count < 0) {
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fprintf(stderr, "Negative number of bytes (%ld) passed to SetBitmapBits???\n", count );
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count = -count;
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}
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bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
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if (!bmp) return 0;
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dprintf_bitmap(stddeb, "SetBitmapBits: %dx%d %d colors %p\n",
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bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
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1 << bmp->bitmap.bmBitsPixel, buffer );
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/* Only set entire lines */
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height = count / bmp->bitmap.bmWidthBytes;
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if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight;
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if (!height) return 0;
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if (!(image = BITMAP_BmpToImage( &bmp->bitmap, buffer ))) return 0;
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CallTo32_LargeStack( XPutImage, 10,
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display, bmp->pixmap, BITMAP_GC(bmp), image, 0, 0,
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0, 0, bmp->bitmap.bmWidth, height );
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image->data = NULL;
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XDestroyImage( image );
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return height * bmp->bitmap.bmWidthBytes;
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}
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/**********************************************************************
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* LoadBitmap (USER.175)
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*/
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HBITMAP LoadBitmap( HANDLE instance, SEGPTR name )
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{
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HBITMAP hbitmap = 0;
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HDC hdc;
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HRSRC hRsrc;
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HGLOBAL handle;
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BITMAPINFO *info;
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if (HIWORD(name))
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{
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char *str = (char *)PTR_SEG_TO_LIN( name );
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dprintf_bitmap( stddeb, "LoadBitmap(%04x,'%s')\n", instance, str );
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if (str[0] == '#') name = (SEGPTR)(DWORD)(WORD)atoi( str + 1 );
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}
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else
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dprintf_bitmap( stddeb, "LoadBitmap(%04x,%04x)\n",
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instance, LOWORD(name) );
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if (!instance) /* OEM bitmap */
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{
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if (HIWORD((int)name)) return 0;
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return OBM_LoadBitmap( LOWORD((int)name) );
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}
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if (!(hRsrc = FindResource( instance, name, RT_BITMAP ))) return 0;
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if (!(handle = LoadResource( instance, hRsrc ))) return 0;
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info = (BITMAPINFO *)LockResource( handle );
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if ((hdc = GetDC(0)) != 0)
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{
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char *bits = (char *)info + DIB_BitmapInfoSize( info, DIB_RGB_COLORS );
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hbitmap = CreateDIBitmap( hdc, &info->bmiHeader, CBM_INIT,
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bits, info, DIB_RGB_COLORS );
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ReleaseDC( 0, hdc );
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}
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FreeResource( handle );
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return hbitmap;
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}
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/***********************************************************************
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* BITMAP_DeleteObject
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*/
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BOOL BITMAP_DeleteObject( HBITMAP hbitmap, BITMAPOBJ * bitmap )
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{
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XFreePixmap( display, bitmap->pixmap );
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return GDI_FreeObject( hbitmap );
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}
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/***********************************************************************
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* BITMAP_GetObject
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*/
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int BITMAP_GetObject( BITMAPOBJ * bmp, int count, LPSTR buffer )
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{
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if (count > sizeof(BITMAP)) count = sizeof(BITMAP);
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memcpy( buffer, &bmp->bitmap, count );
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return count;
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}
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/***********************************************************************
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* BITMAP_SelectObject
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*/
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HBITMAP BITMAP_SelectObject( HDC hdc, DC * dc, HBITMAP hbitmap,
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BITMAPOBJ * bmp )
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{
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HRGN hrgn;
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HBITMAP prevHandle = dc->w.hBitmap;
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if (!(dc->w.flags & DC_MEMORY)) return 0;
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hrgn = CreateRectRgn( 0, 0, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight );
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if (!hrgn) return 0;
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DeleteObject( dc->w.hVisRgn );
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dc->w.hVisRgn = hrgn;
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dc->u.x.drawable = bmp->pixmap;
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dc->w.hBitmap = hbitmap;
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/* Change GC depth if needed */
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if (dc->w.bitsPerPixel != bmp->bitmap.bmBitsPixel)
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{
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XFreeGC( display, dc->u.x.gc );
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dc->u.x.gc = XCreateGC( display, dc->u.x.drawable, 0, NULL );
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dc->w.bitsPerPixel = bmp->bitmap.bmBitsPixel;
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DC_InitDC( hdc );
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}
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else CLIPPING_UpdateGCRegion( dc ); /* Just update GC clip region */
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return prevHandle;
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}
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/***********************************************************************
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* CreateDiscardableBitmap (GDI.156)
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*/
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HBITMAP CreateDiscardableBitmap(HDC hdc, INT width, INT height)
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{
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dprintf_bitmap(stddeb,"CreateDiscardableBitmap(%04x, %d, %d); "
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"// call CreateCompatibleBitmap() for now!\n",
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hdc, width, height);
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return CreateCompatibleBitmap(hdc, width, height);
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}
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/***********************************************************************
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* GetBitmapDimensionEx16 (GDI.468)
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*/
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BOOL16 GetBitmapDimensionEx16( HBITMAP16 hbitmap, LPSIZE16 size )
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{
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BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
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if (!bmp) return FALSE;
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*size = bmp->size;
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return TRUE;
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}
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/***********************************************************************
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* GetBitmapDimensionEx32 (GDI.468)
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*/
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BOOL32 GetBitmapDimensionEx32( HBITMAP32 hbitmap, LPSIZE32 size )
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{
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BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
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if (!bmp) return FALSE;
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size->cx = (INT32)bmp->size.cx;
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size->cy = (INT32)bmp->size.cy;
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return TRUE;
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}
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/***********************************************************************
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* GetBitmapDimension (GDI.162)
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*/
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DWORD GetBitmapDimension( HBITMAP16 hbitmap )
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{
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SIZE16 size;
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if (!GetBitmapDimensionEx16( hbitmap, &size )) return 0;
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return MAKELONG( size.cx, size.cy );
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}
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/***********************************************************************
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* SetBitmapDimensionEx16 (GDI.478)
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*/
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BOOL16 SetBitmapDimensionEx16( HBITMAP16 hbitmap, INT16 x, INT16 y,
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LPSIZE16 prevSize )
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{
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BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
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if (!bmp) return FALSE;
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if (prevSize) *prevSize = bmp->size;
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bmp->size.cx = x;
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bmp->size.cy = y;
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return TRUE;
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}
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/***********************************************************************
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* SetBitmapDimensionEx32 (GDI.478)
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*/
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BOOL32 SetBitmapDimensionEx32( HBITMAP32 hbitmap, INT32 x, INT32 y,
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LPSIZE32 prevSize )
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{
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BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
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if (!bmp) return FALSE;
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if (prevSize) CONV_SIZE16TO32( &bmp->size, prevSize );
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bmp->size.cx = (INT16)x;
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bmp->size.cy = (INT16)y;
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return TRUE;
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}
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/***********************************************************************
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* SetBitmapDimension (GDI.163)
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*/
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DWORD SetBitmapDimension( HBITMAP16 hbitmap, INT16 x, INT16 y )
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{
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SIZE16 size;
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if (!SetBitmapDimensionEx16( hbitmap, x, y, &size )) return 0;
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return MAKELONG( size.cx, size.cy );
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}
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