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wine/dlls/x11drv/bitmap.c
Alexandre Julliard ddc60c85f6 x11drv: Clear new bitmaps if they don't contain any data.
2006-03-20 16:00:34 +01:00

489 lines
14 KiB
C
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/*
* X11DRV bitmap objects
*
* Copyright 1993 Alexandre Julliard
* 1999 Noel Borthwick
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include "windef.h"
#include "wingdi.h"
#include "wine/debug.h"
#include "x11drv.h"
WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
/* GCs used for B&W and color bitmap operations */
GC BITMAP_monoGC = 0, BITMAP_colorGC = 0;
X_PHYSBITMAP BITMAP_stock_phys_bitmap = { 0 }; /* phys bitmap for the default stock bitmap */
static XContext bitmap_context; /* X context to associate a phys bitmap to a handle */
/***********************************************************************
* X11DRV_BITMAP_Init
*/
void X11DRV_BITMAP_Init(void)
{
Pixmap tmpPixmap;
/* Create the necessary GCs */
wine_tsx11_lock();
bitmap_context = XUniqueContext();
BITMAP_stock_phys_bitmap.pixmap_depth = 1;
BITMAP_stock_phys_bitmap.pixmap = XCreatePixmap( gdi_display, root_window, 1, 1, 1 );
BITMAP_monoGC = XCreateGC( gdi_display, BITMAP_stock_phys_bitmap.pixmap, 0, NULL );
XSetGraphicsExposures( gdi_display, BITMAP_monoGC, False );
XSetSubwindowMode( gdi_display, BITMAP_monoGC, IncludeInferiors );
if (screen_depth != 1)
{
if ((tmpPixmap = XCreatePixmap( gdi_display, root_window, 1, 1, screen_depth )))
{
BITMAP_colorGC = XCreateGC( gdi_display, tmpPixmap, 0, NULL );
XSetGraphicsExposures( gdi_display, BITMAP_colorGC, False );
XSetSubwindowMode( gdi_display, BITMAP_colorGC, IncludeInferiors );
XFreePixmap( gdi_display, tmpPixmap );
}
}
wine_tsx11_unlock();
}
/***********************************************************************
* SelectBitmap (X11DRV.@)
*/
HBITMAP X11DRV_SelectBitmap( X11DRV_PDEVICE *physDev, HBITMAP hbitmap )
{
X_PHYSBITMAP *physBitmap;
if(physDev->xrender)
X11DRV_XRender_UpdateDrawable( physDev );
if (hbitmap == BITMAP_stock_phys_bitmap.hbitmap) physBitmap = &BITMAP_stock_phys_bitmap;
else if (!(physBitmap = X11DRV_get_phys_bitmap( hbitmap ))) return 0;
physDev->bitmap = physBitmap;
physDev->drawable = physBitmap->pixmap;
/* Change GC depth if needed */
if (physDev->depth != physBitmap->pixmap_depth)
{
physDev->depth = physBitmap->pixmap_depth;
wine_tsx11_lock();
XFreeGC( gdi_display, physDev->gc );
physDev->gc = XCreateGC( gdi_display, physDev->drawable, 0, NULL );
XSetGraphicsExposures( gdi_display, physDev->gc, False );
XSetSubwindowMode( gdi_display, physDev->gc, IncludeInferiors );
XFlush( gdi_display );
wine_tsx11_unlock();
}
return hbitmap;
}
/****************************************************************************
* CreateBitmap (X11DRV.@)
*
* Create a device dependent X11 bitmap
*
* Returns TRUE on success else FALSE
*/
BOOL X11DRV_CreateBitmap( X11DRV_PDEVICE *physDev, HBITMAP hbitmap )
{
X_PHYSBITMAP *physBitmap;
BITMAP bitmap;
if (!GetObjectW( hbitmap, sizeof(bitmap), &bitmap )) return FALSE;
/* Check parameters */
if (bitmap.bmPlanes != 1) return FALSE;
if ((bitmap.bmBitsPixel != 1) && (bitmap.bmBitsPixel != screen_depth))
{
ERR("Trying to make bitmap with planes=%d, bpp=%d\n",
bitmap.bmPlanes, bitmap.bmBitsPixel);
return FALSE;
}
if (hbitmap == BITMAP_stock_phys_bitmap.hbitmap)
{
ERR( "called for stock bitmap, please report\n" );
return FALSE;
}
TRACE("(%p) %dx%d %d bpp\n", hbitmap, bitmap.bmWidth, bitmap.bmHeight, bitmap.bmBitsPixel);
if (!(physBitmap = X11DRV_init_phys_bitmap( hbitmap ))) return FALSE;
/* Create the pixmap */
wine_tsx11_lock();
physBitmap->pixmap_depth = bitmap.bmBitsPixel;
physBitmap->pixmap = XCreatePixmap(gdi_display, root_window,
bitmap.bmWidth, bitmap.bmHeight, bitmap.bmBitsPixel);
wine_tsx11_unlock();
if (!physBitmap->pixmap)
{
WARN("Can't create Pixmap\n");
HeapFree( GetProcessHeap(), 0, physBitmap );
return FALSE;
}
if (bitmap.bmBits) /* Set bitmap bits */
{
X11DRV_SetBitmapBits( hbitmap, bitmap.bmBits, bitmap.bmHeight * bitmap.bmWidthBytes );
}
else /* else clear the bitmap */
{
wine_tsx11_lock();
XSetFunction( gdi_display, BITMAP_GC(physBitmap), GXclear );
XFillRectangle( gdi_display, physBitmap->pixmap, BITMAP_GC(physBitmap), 0, 0,
bitmap.bmWidth, bitmap.bmHeight );
XSetFunction( gdi_display, BITMAP_GC(physBitmap), GXcopy );
wine_tsx11_unlock();
}
return TRUE;
}
/***********************************************************************
* GetBitmapBits (X11DRV.@)
*
* RETURNS
* Success: Number of bytes copied
* Failure: 0
*/
LONG X11DRV_GetBitmapBits( HBITMAP hbitmap, void *buffer, LONG count )
{
BITMAP bitmap;
X_PHYSBITMAP *physBitmap = X11DRV_get_phys_bitmap( hbitmap );
LONG old_height, height;
XImage *image;
LPBYTE tbuf, startline;
int h, w;
if (!physBitmap || !GetObjectW( hbitmap, sizeof(bitmap), &bitmap )) return 0;
TRACE("(bmp=%p, buffer=%p, count=0x%lx)\n", hbitmap, buffer, count);
wine_tsx11_lock();
/* Hack: change the bitmap height temporarily to avoid */
/* getting unnecessary bitmap rows. */
old_height = bitmap.bmHeight;
height = bitmap.bmHeight = count / bitmap.bmWidthBytes;
image = XGetImage( gdi_display, physBitmap->pixmap, 0, 0,
bitmap.bmWidth, bitmap.bmHeight, AllPlanes, ZPixmap );
bitmap.bmHeight = old_height;
/* copy XImage to 16 bit padded image buffer with real bitsperpixel */
startline = buffer;
switch (physBitmap->pixmap_depth)
{
case 1:
for (h=0;h<height;h++)
{
tbuf = startline;
*tbuf = 0;
for (w=0;w<bitmap.bmWidth;w++)
{
if ((w%8) == 0)
*tbuf = 0;
*tbuf |= XGetPixel(image,w,h)<<(7-(w&7));
if ((w&7) == 7) ++tbuf;
}
startline += bitmap.bmWidthBytes;
}
break;
case 4:
for (h=0;h<height;h++)
{
tbuf = startline;
for (w=0;w<bitmap.bmWidth;w++)
{
if (!(w & 1)) *tbuf = XGetPixel( image, w, h) << 4;
else *tbuf++ |= XGetPixel( image, w, h) & 0x0f;
}
startline += bitmap.bmWidthBytes;
}
break;
case 8:
for (h=0;h<height;h++)
{
tbuf = startline;
for (w=0;w<bitmap.bmWidth;w++)
*tbuf++ = XGetPixel(image,w,h);
startline += bitmap.bmWidthBytes;
}
break;
case 15:
case 16:
for (h=0;h<height;h++)
{
tbuf = startline;
for (w=0;w<bitmap.bmWidth;w++)
{
long pixel = XGetPixel(image,w,h);
*tbuf++ = pixel & 0xff;
*tbuf++ = (pixel>>8) & 0xff;
}
startline += bitmap.bmWidthBytes;
}
break;
case 24:
for (h=0;h<height;h++)
{
tbuf = startline;
for (w=0;w<bitmap.bmWidth;w++)
{
long pixel = XGetPixel(image,w,h);
*tbuf++ = pixel & 0xff;
*tbuf++ = (pixel>> 8) & 0xff;
*tbuf++ = (pixel>>16) & 0xff;
}
startline += bitmap.bmWidthBytes;
}
break;
case 32:
for (h=0;h<height;h++)
{
tbuf = startline;
for (w=0;w<bitmap.bmWidth;w++)
{
long pixel = XGetPixel(image,w,h);
*tbuf++ = pixel & 0xff;
*tbuf++ = (pixel>> 8) & 0xff;
*tbuf++ = (pixel>>16) & 0xff;
*tbuf++ = (pixel>>24) & 0xff;
}
startline += bitmap.bmWidthBytes;
}
break;
default:
FIXME("Unhandled bits:%d\n", physBitmap->pixmap_depth);
}
XDestroyImage( image );
wine_tsx11_unlock();
return count;
}
/******************************************************************************
* SetBitmapBits (X11DRV.@)
*
* RETURNS
* Success: Number of bytes used in setting the bitmap bits
* Failure: 0
*/
LONG X11DRV_SetBitmapBits( HBITMAP hbitmap, const void *bits, LONG count )
{
BITMAP bitmap;
X_PHYSBITMAP *physBitmap = X11DRV_get_phys_bitmap( hbitmap );
LONG height;
XImage *image;
const BYTE *sbuf, *startline;
int w, h;
if (!physBitmap || !GetObjectW( hbitmap, sizeof(bitmap), &bitmap )) return 0;
TRACE("(bmp=%p, bits=%p, count=0x%lx)\n", hbitmap, bits, count);
height = count / bitmap.bmWidthBytes;
wine_tsx11_lock();
image = XCreateImage( gdi_display, visual, physBitmap->pixmap_depth, ZPixmap, 0, NULL,
bitmap.bmWidth, height, 32, 0 );
if (!(image->data = malloc(image->bytes_per_line * height)))
{
WARN("No memory to create image data.\n");
XDestroyImage( image );
wine_tsx11_unlock();
return 0;
}
/* copy 16 bit padded image buffer with real bitsperpixel to XImage */
startline = bits;
switch (physBitmap->pixmap_depth)
{
case 1:
for (h=0;h<height;h++)
{
sbuf = startline;
for (w=0;w<bitmap.bmWidth;w++)
{
XPutPixel(image,w,h,(sbuf[0]>>(7-(w&7))) & 1);
if ((w&7) == 7)
sbuf++;
}
startline += bitmap.bmWidthBytes;
}
break;
case 4:
for (h=0;h<height;h++)
{
sbuf = startline;
for (w=0;w<bitmap.bmWidth;w++)
{
if (!(w & 1)) XPutPixel( image, w, h, *sbuf >> 4 );
else XPutPixel( image, w, h, *sbuf++ & 0xf );
}
startline += bitmap.bmWidthBytes;
}
break;
case 8:
for (h=0;h<height;h++)
{
sbuf = startline;
for (w=0;w<bitmap.bmWidth;w++)
XPutPixel(image,w,h,*sbuf++);
startline += bitmap.bmWidthBytes;
}
break;
case 15:
case 16:
for (h=0;h<height;h++)
{
sbuf = startline;
for (w=0;w<bitmap.bmWidth;w++)
{
XPutPixel(image,w,h,sbuf[1]*256+sbuf[0]);
sbuf+=2;
}
startline += bitmap.bmWidthBytes;
}
break;
case 24:
for (h=0;h<height;h++)
{
sbuf = startline;
for (w=0;w<bitmap.bmWidth;w++)
{
XPutPixel(image,w,h,(sbuf[2]<<16)+(sbuf[1]<<8)+sbuf[0]);
sbuf += 3;
}
startline += bitmap.bmWidthBytes;
}
break;
case 32:
for (h=0;h<height;h++)
{
sbuf = startline;
for (w=0;w<bitmap.bmWidth;w++)
{
XPutPixel(image,w,h,(sbuf[3]<<24)+(sbuf[2]<<16)+(sbuf[1]<<8)+sbuf[0]);
sbuf += 4;
}
startline += bitmap.bmWidthBytes;
}
break;
default:
FIXME("Unhandled bits:%d\n", physBitmap->pixmap_depth);
}
XPutImage( gdi_display, physBitmap->pixmap, BITMAP_GC(physBitmap),
image, 0, 0, 0, 0, bitmap.bmWidth, height );
XDestroyImage( image ); /* frees image->data too */
wine_tsx11_unlock();
return count;
}
/***********************************************************************
* DeleteBitmap (X11DRV.@)
*/
BOOL X11DRV_DeleteBitmap( HBITMAP hbitmap )
{
X_PHYSBITMAP *physBitmap = X11DRV_get_phys_bitmap( hbitmap );
if (physBitmap)
{
DIBSECTION dib;
if (GetObjectW( hbitmap, sizeof(dib), &dib ) == sizeof(dib))
X11DRV_DIB_DeleteDIBSection( physBitmap, &dib );
if (physBitmap->glxpixmap) destroy_glxpixmap(physBitmap->glxpixmap);
wine_tsx11_lock();
if (physBitmap->pixmap) XFreePixmap( gdi_display, physBitmap->pixmap );
XDeleteContext( gdi_display, (XID)hbitmap, bitmap_context );
wine_tsx11_unlock();
HeapFree( GetProcessHeap(), 0, physBitmap );
}
return TRUE;
}
/***********************************************************************
* X11DRV_get_phys_bitmap
*
* Retrieve the X physical bitmap info.
*/
X_PHYSBITMAP *X11DRV_get_phys_bitmap( HBITMAP hbitmap )
{
X_PHYSBITMAP *ret;
wine_tsx11_lock();
if (XFindContext( gdi_display, (XID)hbitmap, bitmap_context, (char **)&ret )) ret = NULL;
wine_tsx11_unlock();
return ret;
}
/***********************************************************************
* X11DRV_init_phys_bitmap
*
* Initialize the X physical bitmap info.
*/
X_PHYSBITMAP *X11DRV_init_phys_bitmap( HBITMAP hbitmap )
{
X_PHYSBITMAP *ret;
if ((ret = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ret) )) != NULL)
{
ret->hbitmap = hbitmap;
wine_tsx11_lock();
XSaveContext( gdi_display, (XID)hbitmap, bitmap_context, (char *)ret );
wine_tsx11_unlock();
}
return ret;
}
/***********************************************************************
* X11DRV_get_pixmap
*
* Retrieve the pixmap associated to a bitmap.
*/
Pixmap X11DRV_get_pixmap( HBITMAP hbitmap )
{
X_PHYSBITMAP *physBitmap = X11DRV_get_phys_bitmap( hbitmap );
if (!physBitmap) return 0;
return physBitmap->pixmap;
}
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