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wine/dlls/winex11.drv/dib.c

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/*
* X11DRV device-independent bitmaps
*
* Copyright 1993,1994 Alexandre Julliard
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <X11/Xlib.h>
#ifdef HAVE_LIBXXSHM
#include <X11/extensions/XShm.h>
# ifdef HAVE_SYS_SHM_H
# include <sys/shm.h>
# endif
# ifdef HAVE_SYS_IPC_H
# include <sys/ipc.h>
# endif
#endif /* defined(HAVE_LIBXXSHM) */
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "x11drv.h"
#include "wine/exception.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(bitmap);
static struct list dibs_list = LIST_INIT(dibs_list);
static CRITICAL_SECTION dibs_cs;
static CRITICAL_SECTION_DEBUG dibs_cs_debug =
{
0, 0, &dibs_cs,
{ &dibs_cs_debug.ProcessLocksList, &dibs_cs_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": dibs_cs") }
};
static CRITICAL_SECTION dibs_cs = { &dibs_cs_debug, -1, 0, 0, 0, 0 };
static PVOID dibs_handler;
static int ximageDepthTable[32];
/* This structure holds the arguments for DIB_SetImageBits() */
typedef struct
{
X11DRV_PDEVICE *physDev;
LPCVOID bits;
XImage *image;
PALETTEENTRY *palentry;
int lines;
DWORD infoWidth;
WORD depth;
WORD infoBpp;
WORD compression;
RGBQUAD *colorMap;
int nColorMap;
Drawable drawable;
GC gc;
int xSrc;
int ySrc;
int xDest;
int yDest;
int width;
int height;
DWORD rMask;
DWORD gMask;
DWORD bMask;
enum x11drv_shm_mode shm_mode;
int dibpitch;
DWORD sizeImage;
X_PHYSBITMAP *physBitmap;
} X11DRV_DIB_IMAGEBITS_DESCR;
enum Rle_EscapeCodes
{
RLE_EOL = 0, /* End of line */
RLE_END = 1, /* End of bitmap */
RLE_DELTA = 2 /* Delta */
};
static INT X11DRV_DIB_Coerce(X_PHYSBITMAP *,INT);
static INT X11DRV_DIB_Lock(X_PHYSBITMAP *,INT);
static void X11DRV_DIB_Unlock(X_PHYSBITMAP *,BOOL);
/*
Some of the following helper functions are duplicated in
dlls/gdi/dib.c
*/
/***********************************************************************
* DIB_DoProtectDIBSection
*/
static void X11DRV_DIB_DoProtectDIBSection( X_PHYSBITMAP *physBitmap, DWORD new_prot )
{
DWORD old_prot;
VirtualProtect(physBitmap->base, physBitmap->size, new_prot, &old_prot);
TRACE("Changed protection from %d to %d\n", old_prot, new_prot);
}
/***********************************************************************
* X11DRV_DIB_GetXImageWidthBytes
*
* Return the width of an X image in bytes
*/
static inline int X11DRV_DIB_GetXImageWidthBytes( int width, int depth )
{
if (!depth || depth > 32) goto error;
if (!ximageDepthTable[depth-1])
{
XImage *testimage = XCreateImage( gdi_display, visual, depth,
ZPixmap, 0, NULL, 1, 1, 32, 20 );
if (testimage)
{
ximageDepthTable[depth-1] = testimage->bits_per_pixel;
XDestroyImage( testimage );
}
else ximageDepthTable[depth-1] = -1;
}
if (ximageDepthTable[depth-1] != -1)
return (4 * ((width * ximageDepthTable[depth-1] + 31) / 32));
error:
WARN( "(%d): Unsupported depth\n", depth );
return 4 * width;
}
/***********************************************************************
* X11DRV_DIB_GetDIBWidthBytes
*
* Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned.
*/
static int X11DRV_DIB_GetDIBWidthBytes( int width, int depth )
{
int words;
switch(depth)
{
case 1: words = (width + 31) / 32; break;
case 4: words = (width + 7) / 8; break;
case 8: words = (width + 3) / 4; break;
case 15:
case 16: words = (width + 1) / 2; break;
case 24: words = (width * 3 + 3) / 4; break;
default:
WARN("(%d): Unsupported depth\n", depth );
/* fall through */
case 32:
words = width;
}
return 4 * words;
}
/***********************************************************************
* X11DRV_DIB_GetDIBImageBytes
*
* Return the number of bytes used to hold the image in a DIB bitmap.
*/
static int X11DRV_DIB_GetDIBImageBytes( int width, int height, int depth )
{
return X11DRV_DIB_GetDIBWidthBytes( width, depth ) * abs( height );
}
/***********************************************************************
* bitmap_info_size
*
* Return the size of the bitmap info structure including color table.
*/
int bitmap_info_size( const BITMAPINFO * info, WORD coloruse )
{
unsigned int colors, masks = 0;
if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
{
const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)info;
colors = (core->bcBitCount <= 8) ? 1 << core->bcBitCount : 0;
return sizeof(BITMAPCOREHEADER) + colors *
((coloruse == DIB_RGB_COLORS) ? sizeof(RGBTRIPLE) : sizeof(WORD));
}
else /* assume BITMAPINFOHEADER */
{
colors = info->bmiHeader.biClrUsed;
if (!colors && (info->bmiHeader.biBitCount <= 8))
colors = 1 << info->bmiHeader.biBitCount;
if (info->bmiHeader.biCompression == BI_BITFIELDS) masks = 3;
return sizeof(BITMAPINFOHEADER) + masks * sizeof(DWORD) + colors *
((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD));
}
}
/***********************************************************************
* X11DRV_DIB_CreateXImage
*
* Create an X image.
*/
XImage *X11DRV_DIB_CreateXImage( int width, int height, int depth )
{
int width_bytes;
XImage *image = NULL;
void *data;
wine_tsx11_lock();
width_bytes = X11DRV_DIB_GetXImageWidthBytes( width, depth );
data = HeapAlloc( GetProcessHeap(), 0, height * width_bytes );
if (data) image = XCreateImage( gdi_display, visual, depth, ZPixmap, 0,
data, width, height, 32, width_bytes );
if (!image) HeapFree( GetProcessHeap(), 0, data );
wine_tsx11_unlock();
return image;
}
/***********************************************************************
* X11DRV_DIB_DestroyXImage
*
* Destroy an X image created with X11DRV_DIB_CreateXImage.
*/
void X11DRV_DIB_DestroyXImage( XImage *image )
{
HeapFree( GetProcessHeap(), 0, image->data );
image->data = NULL;
wine_tsx11_lock();
XDestroyImage( image );
wine_tsx11_unlock();
}
/***********************************************************************
* DIB_GetBitmapInfoEx
*
* Get the info from a bitmap header.
* Return 1 for INFOHEADER, 0 for COREHEADER, -1 for error.
*/
static int DIB_GetBitmapInfoEx( const BITMAPINFOHEADER *header, LONG *width,
LONG *height, WORD *planes, WORD *bpp,
WORD *compr, DWORD *size )
{
if (header->biSize == sizeof(BITMAPCOREHEADER))
{
const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)header;
*width = core->bcWidth;
*height = core->bcHeight;
*planes = core->bcPlanes;
*bpp = core->bcBitCount;
*compr = 0;
*size = 0;
return 0;
}
if (header->biSize >= sizeof(BITMAPINFOHEADER))
{
*width = header->biWidth;
*height = header->biHeight;
*planes = header->biPlanes;
*bpp = header->biBitCount;
*compr = header->biCompression;
*size = header->biSizeImage;
return 1;
}
ERR("(%d): unknown/wrong size for header\n", header->biSize );
return -1;
}
/***********************************************************************
* X11DRV_DIB_GetColorCount
*
* Computes the number of colors for the bitmap palette.
* Should not be called for a >8-bit deep bitmap.
*/
static unsigned int X11DRV_DIB_GetColorCount(const BITMAPINFO *info)
{
unsigned int colors;
BOOL core_info = info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER);
if (core_info)
{
colors = 1 << ((const BITMAPCOREINFO*)info)->bmciHeader.bcBitCount;
}
else
{
colors = info->bmiHeader.biClrUsed;
if (!colors) colors = 1 << info->bmiHeader.biBitCount;
}
if (colors > 256)
{
ERR("called with >256 colors!\n");
colors = 0;
}
return colors;
}
/***********************************************************************
* DIB_GetBitmapInfo
*
* Get the info from a bitmap header.
* Return 1 for INFOHEADER, 0 for COREHEADER, -1 for error.
*/
static int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
LONG *height, WORD *bpp, WORD *compr )
{
WORD planes;
DWORD size;
return DIB_GetBitmapInfoEx( header, width, height, &planes, bpp, compr, &size);
}
static inline BOOL colour_is_brighter(RGBQUAD c1, RGBQUAD c2)
{
return (c1.rgbRed * c1.rgbRed + c1.rgbGreen * c1.rgbGreen + c1.rgbBlue * c1.rgbBlue) >
(c2.rgbRed * c2.rgbRed + c2.rgbGreen * c2.rgbGreen + c2.rgbBlue * c2.rgbBlue);
}
/***********************************************************************
* X11DRV_DIB_GenColorMap
*
* Fills the color map of a bitmap palette. Should not be called
* for a >8-bit deep bitmap.
*/
static int *X11DRV_DIB_GenColorMap( X11DRV_PDEVICE *physDev, int *colorMapping,
WORD coloruse, WORD depth, BOOL quads,
const void *colorPtr, int start, int end )
{
int i;
if (coloruse == DIB_RGB_COLORS)
{
if (quads)
{
const RGBQUAD * rgb = colorPtr;
if (depth == 1) /* Monochrome */
{
BOOL invert = FALSE;
RGBQUAD table[2];
if (GetDIBColorTable( physDev->hdc, 0, 2, table ) == 2)
invert = !colour_is_brighter(table[1], table[0]);
for (i = start; i < end; i++, rgb++)
colorMapping[i] = ((rgb->rgbRed + rgb->rgbGreen +
rgb->rgbBlue > 255*3/2 && !invert) ||
(rgb->rgbRed + rgb->rgbGreen +
rgb->rgbBlue <= 255*3/2 && invert));
}
else
for (i = start; i < end; i++, rgb++)
colorMapping[i] = X11DRV_PALETTE_ToPhysical( NULL, RGB(rgb->rgbRed,
rgb->rgbGreen,
rgb->rgbBlue));
}
else
{
const RGBTRIPLE * rgb = colorPtr;
if (depth == 1) /* Monochrome */
{
BOOL invert = FALSE;
RGBQUAD table[2];
if (GetDIBColorTable( physDev->hdc, 0, 2, table ) == 2)
invert = !colour_is_brighter(table[1], table[0]);
for (i = start; i < end; i++, rgb++)
colorMapping[i] = ((rgb->rgbtRed + rgb->rgbtGreen +
rgb->rgbtBlue > 255*3/2 && !invert) ||
(rgb->rgbtRed + rgb->rgbtGreen +
rgb->rgbtBlue <= 255*3/2 && invert));
}
else
for (i = start; i < end; i++, rgb++)
colorMapping[i] = X11DRV_PALETTE_ToPhysical( NULL, RGB(rgb->rgbtRed,
rgb->rgbtGreen,
rgb->rgbtBlue));
}
}
else /* DIB_PAL_COLORS */
{
const WORD * index = colorPtr;
for (i = start; i < end; i++, index++)
colorMapping[i] = X11DRV_PALETTE_ToPhysical( physDev, PALETTEINDEX(*index) );
}
return colorMapping;
}
/***********************************************************************
* X11DRV_DIB_BuildColorMap
*
* Build the color map from the bitmap palette. Should not be called
* for a >8-bit deep bitmap.
*/
static int *X11DRV_DIB_BuildColorMap( X11DRV_PDEVICE *physDev, WORD coloruse, WORD depth,
const BITMAPINFO *info, int *nColors )
{
BOOL isInfo;
const void *colorPtr;
int *colorMapping;
*nColors = X11DRV_DIB_GetColorCount(info);
if (!*nColors) return NULL;
isInfo = info->bmiHeader.biSize != sizeof(BITMAPCOREHEADER);
colorPtr = (const BYTE*)info + (WORD)info->bmiHeader.biSize;
if (!(colorMapping = HeapAlloc(GetProcessHeap(), 0, *nColors * sizeof(int) )))
return NULL;
return X11DRV_DIB_GenColorMap( physDev, colorMapping, coloruse, depth,
isInfo, colorPtr, 0, *nColors);
}
/***********************************************************************
* X11DRV_DIB_MapColor
*/
static int X11DRV_DIB_MapColor( int *physMap, int nPhysMap, int phys, int oldcol )
{
int color;
if ((oldcol < nPhysMap) && (physMap[oldcol] == phys))
return oldcol;
for (color = 0; color < nPhysMap; color++)
if (physMap[color] == phys)
return color;
WARN("Strange color %08x\n", phys);
return 0;
}
/*********************************************************************
* X11DRV_DIB_GetNearestIndex
*
* Helper for X11DRV_DIB_GetDIBits.
* Returns the nearest colour table index for a given RGB.
* Nearest is defined by minimizing the sum of the squares.
*/
static INT X11DRV_DIB_GetNearestIndex(RGBQUAD *colormap, int numColors, BYTE r, BYTE g, BYTE b)
{
INT i, best = -1, diff, bestdiff = -1;
RGBQUAD *color;
for(color = colormap, i = 0; i < numColors; color++, i++) {
diff = (r - color->rgbRed) * (r - color->rgbRed) +
(g - color->rgbGreen) * (g - color->rgbGreen) +
(b - color->rgbBlue) * (b - color->rgbBlue);
if(diff == 0)
return i;
if(best == -1 || diff < bestdiff) {
best = i;
bestdiff = diff;
}
}
return best;
}
/*********************************************************************
* X11DRV_DIB_MaskToShift
*
* Helper for X11DRV_DIB_GetDIBits.
* Returns the by how many bits to shift a given color so that it is
* in the proper position.
*/
INT X11DRV_DIB_MaskToShift(DWORD mask)
{
int shift;
if (mask==0)
return 0;
shift=0;
while ((mask&1)==0) {
mask>>=1;
shift++;
}
return shift;
}
/***********************************************************************
* X11DRV_DIB_CheckMask
*
* Check RGB mask if it is either 0 or matches visual's mask.
*/
static inline int X11DRV_DIB_CheckMask(int red_mask, int green_mask, int blue_mask)
{
return ( red_mask == 0 && green_mask == 0 && blue_mask == 0 ) ||
( red_mask == visual->red_mask && green_mask == visual->green_mask &&
blue_mask == visual->blue_mask );
}
/***********************************************************************
* X11DRV_DIB_SetImageBits_1
*
* SetDIBits for a 1-bit deep DIB.
*/
static void X11DRV_DIB_SetImageBits_1( int lines, const BYTE *srcbits,
DWORD srcwidth, DWORD dstwidth, int left,
int *colors, XImage *bmpImage, int linebytes)
{
int h, width;
const BYTE* srcbyte;
BYTE srcval, extra;
DWORD i, x;
if (lines < 0 ) {
lines = -lines;
srcbits = srcbits + linebytes * (lines - 1);
linebytes = -linebytes;
}
if ((extra = (left & 7)) != 0) {
left &= ~7;
dstwidth += extra;
}
srcbits += left >> 3;
width = min(srcwidth, dstwidth);
/* ==== pal 1 dib -> any bmp format ==== */
for (h = lines-1; h >=0; h--) {
srcbyte=srcbits;
for (i = width/8, x = left; i > 0; i--) {
srcval=*srcbyte++;
XPutPixel( bmpImage, x++, h, colors[ srcval >> 7] );
XPutPixel( bmpImage, x++, h, colors[(srcval >> 6) & 1] );
XPutPixel( bmpImage, x++, h, colors[(srcval >> 5) & 1] );
XPutPixel( bmpImage, x++, h, colors[(srcval >> 4) & 1] );
XPutPixel( bmpImage, x++, h, colors[(srcval >> 3) & 1] );
XPutPixel( bmpImage, x++, h, colors[(srcval >> 2) & 1] );
XPutPixel( bmpImage, x++, h, colors[(srcval >> 1) & 1] );
XPutPixel( bmpImage, x++, h, colors[ srcval & 1] );
}
if (width % 8){
srcval=*srcbyte;
switch (width & 7)
{
case 7: XPutPixel(bmpImage, x++, h, colors[srcval >> 7]); srcval<<=1;
case 6: XPutPixel(bmpImage, x++, h, colors[srcval >> 7]); srcval<<=1;
case 5: XPutPixel(bmpImage, x++, h, colors[srcval >> 7]); srcval<<=1;
case 4: XPutPixel(bmpImage, x++, h, colors[srcval >> 7]); srcval<<=1;
case 3: XPutPixel(bmpImage, x++, h, colors[srcval >> 7]); srcval<<=1;
case 2: XPutPixel(bmpImage, x++, h, colors[srcval >> 7]); srcval<<=1;
case 1: XPutPixel(bmpImage, x++, h, colors[srcval >> 7]);
}
}
srcbits += linebytes;
}
}
/***********************************************************************
* X11DRV_DIB_GetImageBits_1
*
* GetDIBits for a 1-bit deep DIB.
*/
static void X11DRV_DIB_GetImageBits_1( int lines, BYTE *dstbits,
DWORD dstwidth, DWORD srcwidth,
RGBQUAD *colors, PALETTEENTRY *srccolors,
XImage *bmpImage, int linebytes )
{
DWORD x;
int h, width = min(dstwidth, srcwidth);
if (lines < 0 ) {
lines = -lines;
dstbits = dstbits + linebytes * (lines - 1);
linebytes = -linebytes;
}
switch (bmpImage->depth)
{
case 1:
case 4:
if (X11DRV_DIB_CheckMask(bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask)
&& srccolors) {
/* ==== pal 1 or 4 bmp -> pal 1 dib ==== */
BYTE* dstbyte;
for (h=lines-1; h>=0; h--) {
BYTE dstval;
dstbyte=dstbits;
dstval=0;
for (x=0; x<width; x++) {
PALETTEENTRY srcval;
srcval=srccolors[XGetPixel(bmpImage, x, h)];
dstval|=(X11DRV_DIB_GetNearestIndex
(colors, 2,
srcval.peRed,
srcval.peGreen,
srcval.peBlue) << (7 - (x & 7)));
if ((x&7)==7) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&7)!=0) {
*dstbyte++=dstval;
}
/* pad with 0 to DWORD alignment */
for (x = (x+7)&~7; x < ((width + 31) & ~31); x+=8)
*dstbyte++ = 0;
dstbits += linebytes;
}
} else {
goto notsupported;
}
break;
case 8:
if (X11DRV_DIB_CheckMask(bmpImage->red_mask, bmpImage->green_mask, bmpImage->blue_mask)
&& srccolors) {
/* ==== pal 8 bmp -> pal 1 dib ==== */
const void* srcbits;
const BYTE* srcpixel;
BYTE* dstbyte;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
for (h=0; h<lines; h++) {
BYTE dstval;
srcpixel=srcbits;
dstbyte=dstbits;
dstval=0;
for (x=0; x<width; x++) {
PALETTEENTRY srcval;
srcval=srccolors[*srcpixel++];
dstval|=(X11DRV_DIB_GetNearestIndex
(colors, 2,
srcval.peRed,
srcval.peGreen,
srcval.peBlue) << (7-(x&7)) );
if ((x&7)==7) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&7)!=0) {
*dstbyte=dstval;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
goto notsupported;
}
break;
case 15:
case 16:
{
const void* srcbits;
const WORD* srcpixel;
BYTE* dstbyte;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask==0x03e0) {
if (bmpImage->red_mask==0x7c00) {
/* ==== rgb 555 bmp -> pal 1 dib ==== */
for (h=0; h<lines; h++) {
BYTE dstval;
srcpixel=srcbits;
dstbyte=dstbits;
dstval=0;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
dstval|=(X11DRV_DIB_GetNearestIndex
(colors, 2,
((srcval >> 7) & 0xf8) | /* r */
((srcval >> 12) & 0x07),
((srcval >> 2) & 0xf8) | /* g */
((srcval >> 7) & 0x07),
((srcval << 3) & 0xf8) | /* b */
((srcval >> 2) & 0x07) ) << (7-(x&7)) );
if ((x&7)==7) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&7)!=0) {
*dstbyte=dstval;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else if (bmpImage->blue_mask==0x7c00) {
/* ==== bgr 555 bmp -> pal 1 dib ==== */
for (h=0; h<lines; h++) {
WORD dstval;
srcpixel=srcbits;
dstbyte=dstbits;
dstval=0;
for (x=0; x<width; x++) {
BYTE srcval;
srcval=*srcpixel++;
dstval|=(X11DRV_DIB_GetNearestIndex
(colors, 2,
((srcval << 3) & 0xf8) | /* r */
((srcval >> 2) & 0x07),
((srcval >> 2) & 0xf8) | /* g */
((srcval >> 7) & 0x07),
((srcval >> 7) & 0xf8) | /* b */
((srcval >> 12) & 0x07) ) << (7-(x&7)) );
if ((x&7)==7) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&7)!=0) {
*dstbyte=dstval;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
goto notsupported;
}
} else if (bmpImage->green_mask==0x07e0) {
if (bmpImage->red_mask==0xf800) {
/* ==== rgb 565 bmp -> pal 1 dib ==== */
for (h=0; h<lines; h++) {
BYTE dstval;
srcpixel=srcbits;
dstbyte=dstbits;
dstval=0;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
dstval|=(X11DRV_DIB_GetNearestIndex
(colors, 2,
((srcval >> 8) & 0xf8) | /* r */
((srcval >> 13) & 0x07),
((srcval >> 3) & 0xfc) | /* g */
((srcval >> 9) & 0x03),
((srcval << 3) & 0xf8) | /* b */
((srcval >> 2) & 0x07) ) << (7-(x&7)) );
if ((x&7)==7) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&7)!=0) {
*dstbyte=dstval;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else if (bmpImage->blue_mask==0xf800) {
/* ==== bgr 565 bmp -> pal 1 dib ==== */
for (h=0; h<lines; h++) {
BYTE dstval;
srcpixel=srcbits;
dstbyte=dstbits;
dstval=0;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
dstval|=(X11DRV_DIB_GetNearestIndex
(colors, 2,
((srcval << 3) & 0xf8) | /* r */
((srcval >> 2) & 0x07),
((srcval >> 3) & 0xfc) | /* g */
((srcval >> 9) & 0x03),
((srcval >> 8) & 0xf8) | /* b */
((srcval >> 13) & 0x07) ) << (7-(x&7)) );
if ((x&7)==7) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&7)!=0) {
*dstbyte=dstval;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
goto notsupported;
}
} else {
goto notsupported;
}
}
break;
case 24:
case 32:
{
const void* srcbits;
const BYTE *srcbyte;
BYTE* dstbyte;
int bytes_per_pixel;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
bytes_per_pixel=(bmpImage->bits_per_pixel==24?3:4);
if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
} else if (bmpImage->blue_mask==0xff) {
/* ==== rgb 888 or 0888 bmp -> pal 1 dib ==== */
for (h=0; h<lines; h++) {
BYTE dstval;
srcbyte=srcbits;
dstbyte=dstbits;
dstval=0;
for (x=0; x<width; x++) {
dstval|=(X11DRV_DIB_GetNearestIndex
(colors, 2,
srcbyte[2],
srcbyte[1],
srcbyte[0]) << (7-(x&7)) );
srcbyte+=bytes_per_pixel;
if ((x&7)==7) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&7)!=0) {
*dstbyte=dstval;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
/* ==== bgr 888 or 0888 bmp -> pal 1 dib ==== */
for (h=0; h<lines; h++) {
BYTE dstval;
srcbyte=srcbits;
dstbyte=dstbits;
dstval=0;
for (x=0; x<width; x++) {
dstval|=(X11DRV_DIB_GetNearestIndex
(colors, 2,
srcbyte[0],
srcbyte[1],
srcbyte[2]) << (7-(x&7)) );
srcbyte+=bytes_per_pixel;
if ((x&7)==7) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&7)!=0) {
*dstbyte=dstval;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
}
}
break;
default:
notsupported:
{
BYTE* dstbyte;
BYTE neg = 0;
unsigned long white = (1 << bmpImage->bits_per_pixel) - 1;
/* ==== any bmp format -> pal 1 dib ==== */
if ((unsigned)colors[0].rgbRed+colors[0].rgbGreen+colors[0].rgbBlue >=
(unsigned)colors[1].rgbRed+colors[1].rgbGreen+colors[1].rgbBlue )
neg = 1;
WARN("from unknown %d bit bitmap (%lx,%lx,%lx) to 1 bit DIB, "
"%s color mapping\n",
bmpImage->bits_per_pixel, bmpImage->red_mask,
bmpImage->green_mask, bmpImage->blue_mask,
neg?"negative":"direct" );
for (h=lines-1; h>=0; h--) {
BYTE dstval;
dstbyte=dstbits;
dstval=0;
for (x=0; x<width; x++) {
dstval|=((XGetPixel( bmpImage, x, h) >= white) ^ neg) << (7 - (x&7));
if ((x&7)==7) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&7)!=0) {
*dstbyte=dstval;
}
dstbits += linebytes;
}
}
break;
}
}
/***********************************************************************
* X11DRV_DIB_SetImageBits_4
*
* SetDIBits for a 4-bit deep DIB.
*/
static void X11DRV_DIB_SetImageBits_4( int lines, const BYTE *srcbits,
DWORD srcwidth, DWORD dstwidth, int left,
int *colors, XImage *bmpImage, int linebytes)
{
int h, width;
const BYTE* srcbyte;
DWORD i, x;
if (lines < 0 ) {
lines = -lines;
srcbits = srcbits + linebytes * (lines - 1);
linebytes = -linebytes;
}
if (left & 1) {
left--;
dstwidth++;
}
srcbits += left >> 1;
width = min(srcwidth, dstwidth);
/* ==== pal 4 dib -> any bmp format ==== */
for (h = lines-1; h >= 0; h--) {
srcbyte=srcbits;
for (i = width/2, x = left; i > 0; i--) {
BYTE srcval=*srcbyte++;
XPutPixel( bmpImage, x++, h, colors[srcval >> 4] );
XPutPixel( bmpImage, x++, h, colors[srcval & 0x0f] );
}
if (width & 1)
XPutPixel( bmpImage, x, h, colors[*srcbyte >> 4] );
srcbits += linebytes;
}
}
/***********************************************************************
* X11DRV_DIB_GetImageBits_4
*
* GetDIBits for a 4-bit deep DIB.
*/
static void X11DRV_DIB_GetImageBits_4( int lines, BYTE *dstbits,
DWORD srcwidth, DWORD dstwidth,
RGBQUAD *colors, PALETTEENTRY *srccolors,
XImage *bmpImage, int linebytes )
{
DWORD x;
int h, width = min(srcwidth, dstwidth);
BYTE *bits;
if (lines < 0 )
{
lines = -lines;
dstbits = dstbits + ( linebytes * (lines-1) );
linebytes = -linebytes;
}
bits = dstbits;
switch (bmpImage->depth) {
case 1:
case 4:
if (X11DRV_DIB_CheckMask(bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask)
&& srccolors) {
/* ==== pal 1 or 4 bmp -> pal 4 dib ==== */
BYTE* dstbyte;
for (h = lines-1; h >= 0; h--) {
BYTE dstval;
dstbyte=dstbits;
dstval=0;
for (x = 0; x < width; x++) {
PALETTEENTRY srcval;
srcval=srccolors[XGetPixel(bmpImage, x, h)];
dstval|=(X11DRV_DIB_GetNearestIndex
(colors, 16,
srcval.peRed,
srcval.peGreen,
srcval.peBlue) << (4-((x&1)<<2)));
if ((x&1)==1) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&1)!=0) {
*dstbyte=dstval;
}
dstbits += linebytes;
}
} else {
goto notsupported;
}
break;
case 8:
if (X11DRV_DIB_CheckMask(bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask)
&& srccolors) {
/* ==== pal 8 bmp -> pal 4 dib ==== */
const void* srcbits;
const BYTE *srcpixel;
BYTE* dstbyte;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
for (h=0; h<lines; h++) {
BYTE dstval;
srcpixel=srcbits;
dstbyte=dstbits;
dstval=0;
for (x=0; x<width; x++) {
PALETTEENTRY srcval;
srcval = srccolors[*srcpixel++];
dstval|=(X11DRV_DIB_GetNearestIndex
(colors, 16,
srcval.peRed,
srcval.peGreen,
srcval.peBlue) << (4*(1-(x&1))) );
if ((x&1)==1) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&1)!=0) {
*dstbyte=dstval;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
goto notsupported;
}
break;
case 15:
case 16:
{
const void* srcbits;
const WORD* srcpixel;
BYTE* dstbyte;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask==0x03e0) {
if (bmpImage->red_mask==0x7c00) {
/* ==== rgb 555 bmp -> pal 4 dib ==== */
for (h=0; h<lines; h++) {
BYTE dstval;
srcpixel=srcbits;
dstbyte=dstbits;
dstval=0;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
dstval|=(X11DRV_DIB_GetNearestIndex
(colors, 16,
((srcval >> 7) & 0xf8) | /* r */
((srcval >> 12) & 0x07),
((srcval >> 2) & 0xf8) | /* g */
((srcval >> 7) & 0x07),
((srcval << 3) & 0xf8) | /* b */
((srcval >> 2) & 0x07) ) << ((1-(x&1))<<2) );
if ((x&1)==1) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&1)!=0) {
*dstbyte=dstval;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else if (bmpImage->blue_mask==0x7c00) {
/* ==== bgr 555 bmp -> pal 4 dib ==== */
for (h=0; h<lines; h++) {
WORD dstval;
srcpixel=srcbits;
dstbyte=dstbits;
dstval=0;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
dstval|=(X11DRV_DIB_GetNearestIndex
(colors, 16,
((srcval << 3) & 0xf8) | /* r */
((srcval >> 2) & 0x07),
((srcval >> 2) & 0xf8) | /* g */
((srcval >> 7) & 0x07),
((srcval >> 7) & 0xf8) | /* b */
((srcval >> 12) & 0x07) ) << ((1-(x&1))<<2) );
if ((x&1)==1) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&1)!=0) {
*dstbyte=dstval;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
goto notsupported;
}
} else if (bmpImage->green_mask==0x07e0) {
if (bmpImage->red_mask==0xf800) {
/* ==== rgb 565 bmp -> pal 4 dib ==== */
for (h=0; h<lines; h++) {
BYTE dstval;
srcpixel=srcbits;
dstbyte=dstbits;
dstval=0;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
dstval|=(X11DRV_DIB_GetNearestIndex
(colors, 16,
((srcval >> 8) & 0xf8) | /* r */
((srcval >> 13) & 0x07),
((srcval >> 3) & 0xfc) | /* g */
((srcval >> 9) & 0x03),
((srcval << 3) & 0xf8) | /* b */
((srcval >> 2) & 0x07) ) << ((1-(x&1))<<2) );
if ((x&1)==1) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&1)!=0) {
*dstbyte=dstval;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else if (bmpImage->blue_mask==0xf800) {
/* ==== bgr 565 bmp -> pal 4 dib ==== */
for (h=0; h<lines; h++) {
WORD dstval;
srcpixel=srcbits;
dstbyte=dstbits;
dstval=0;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
dstval|=(X11DRV_DIB_GetNearestIndex
(colors, 16,
((srcval << 3) & 0xf8) | /* r */
((srcval >> 2) & 0x07),
((srcval >> 3) & 0xfc) | /* g */
((srcval >> 9) & 0x03),
((srcval >> 8) & 0xf8) | /* b */
((srcval >> 13) & 0x07) ) << ((1-(x&1))<<2) );
if ((x&1)==1) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((width&1)!=0) {
*dstbyte=dstval;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
goto notsupported;
}
} else {
goto notsupported;
}
}
break;
case 24:
if (bmpImage->bits_per_pixel==24) {
const void* srcbits;
const BYTE *srcbyte;
BYTE* dstbyte;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
} else if (bmpImage->blue_mask==0xff) {
/* ==== rgb 888 bmp -> pal 4 dib ==== */
for (h=0; h<lines; h++) {
srcbyte=srcbits;
dstbyte=dstbits;
for (x=0; x<width/2; x++) {
/* Do 2 pixels at a time */
*dstbyte++=(X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[2],
srcbyte[1],
srcbyte[0]) << 4) |
X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[5],
srcbyte[4],
srcbyte[3]);
srcbyte+=6;
}
if (width&1) {
/* And then the odd pixel */
*dstbyte++=(X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[2],
srcbyte[1],
srcbyte[0]) << 4);
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
/* ==== bgr 888 bmp -> pal 4 dib ==== */
for (h=0; h<lines; h++) {
srcbyte=srcbits;
dstbyte=dstbits;
for (x=0; x<width/2; x++) {
/* Do 2 pixels at a time */
*dstbyte++=(X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[0],
srcbyte[1],
srcbyte[2]) << 4) |
X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[3],
srcbyte[4],
srcbyte[5]);
srcbyte+=6;
}
if (width&1) {
/* And then the odd pixel */
*dstbyte++=(X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[0],
srcbyte[1],
srcbyte[2]) << 4);
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
}
break;
}
/* Fall through */
case 32:
{
const void* srcbits;
const BYTE *srcbyte;
BYTE* dstbyte;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
} else if (bmpImage->blue_mask==0xff) {
/* ==== rgb 0888 bmp -> pal 4 dib ==== */
for (h=0; h<lines; h++) {
srcbyte=srcbits;
dstbyte=dstbits;
for (x=0; x<width/2; x++) {
/* Do 2 pixels at a time */
*dstbyte++=(X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[2],
srcbyte[1],
srcbyte[0]) << 4) |
X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[6],
srcbyte[5],
srcbyte[4]);
srcbyte+=8;
}
if (width&1) {
/* And then the odd pixel */
*dstbyte++=(X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[2],
srcbyte[1],
srcbyte[0]) << 4);
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
/* ==== bgr 0888 bmp -> pal 4 dib ==== */
for (h=0; h<lines; h++) {
srcbyte=srcbits;
dstbyte=dstbits;
for (x=0; x<width/2; x++) {
/* Do 2 pixels at a time */
*dstbyte++=(X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[0],
srcbyte[1],
srcbyte[2]) << 4) |
X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[4],
srcbyte[5],
srcbyte[6]);
srcbyte+=8;
}
if (width&1) {
/* And then the odd pixel */
*dstbyte++=(X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[0],
srcbyte[1],
srcbyte[2]) << 4);
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
}
}
break;
default:
notsupported:
{
BYTE* dstbyte;
/* ==== any bmp format -> pal 4 dib ==== */
WARN("from unknown %d bit bitmap (%lx,%lx,%lx) to 4 bit DIB\n",
bmpImage->bits_per_pixel, bmpImage->red_mask,
bmpImage->green_mask, bmpImage->blue_mask );
for (h=lines-1; h>=0; h--) {
dstbyte=dstbits;
for (x=0; x<(width & ~1); x+=2) {
*dstbyte++=(X11DRV_DIB_MapColor((int*)colors, 16, XGetPixel(bmpImage, x, h), 0) << 4) |
X11DRV_DIB_MapColor((int*)colors, 16, XGetPixel(bmpImage, x+1, h), 0);
}
if (width & 1) {
*dstbyte=(X11DRV_DIB_MapColor((int *)colors, 16, XGetPixel(bmpImage, x, h), 0) << 4);
}
dstbits += linebytes;
}
}
break;
}
}
/***********************************************************************
* X11DRV_DIB_SetImageBits_RLE4
*
* SetDIBits for a 4-bit deep compressed DIB.
*/
static void X11DRV_DIB_SetImageBits_RLE4( int lines, const BYTE *bits,
DWORD srcwidth, DWORD dstwidth,
int left, int *colors,
XImage *bmpImage )
{
unsigned int x = 0, width = min(srcwidth, dstwidth);
int y = lines - 1, c, length;
const BYTE *begin = bits;
while (y >= 0)
{
length = *bits++;
if (length) { /* encoded */
c = *bits++;
while (length--) {
if (x >= (left + width)) break;
if( x >= left) XPutPixel(bmpImage, x, y, colors[c >> 4]);
x++;
if (!length--) break;
if (x >= (left + width)) break;
if( x >= left) XPutPixel(bmpImage, x, y, colors[c & 0xf]);
x++;
}
} else {
length = *bits++;
switch (length)
{
case RLE_EOL:
x = 0;
y--;
break;
case RLE_END:
return;
case RLE_DELTA:
x += *bits++;
y -= *bits++;
break;
default: /* absolute */
while (length--) {
c = *bits++;
if (x >= left && x < (left + width))
XPutPixel(bmpImage, x, y, colors[c >> 4]);
x++;
if (!length--) break;
if (x >= left && x < (left + width))
XPutPixel(bmpImage, x, y, colors[c & 0xf]);
x++;
}
if ((bits - begin) & 1)
bits++;
}
}
}
}
/***********************************************************************
* X11DRV_DIB_SetImageBits_8
*
* SetDIBits for an 8-bit deep DIB.
*/
static void X11DRV_DIB_SetImageBits_8( int lines, const BYTE *srcbits,
DWORD srcwidth, DWORD dstwidth, int left,
const int *colors, XImage *bmpImage,
int linebytes )
{
DWORD x;
int h, width = min(srcwidth, dstwidth);
const BYTE* srcbyte;
BYTE* dstbits;
if (lines < 0 )
{
lines = -lines;
srcbits = srcbits + linebytes * (lines-1);
linebytes = -linebytes;
}
srcbits += left;
srcbyte = srcbits;
switch (bmpImage->depth) {
case 15:
case 16:
/* Some X servers might have 32 bit/ 16bit deep pixel */
if (lines && width && (bmpImage->bits_per_pixel == 16) &&
(ImageByteOrder(gdi_display)==LSBFirst) )
{
/* ==== pal 8 dib -> rgb or bgr 555 or 565 bmp ==== */
dstbits=(BYTE*)bmpImage->data+left*2+(lines-1)*bmpImage->bytes_per_line;
for (h = lines ; h--; ) {
#if defined(__i386__) && defined(__GNUC__)
int _cl1,_cl2; /* temp outputs for asm below */
/* Borrowed from DirectDraw */
__asm__ __volatile__(
"xor %%eax,%%eax\n"
"cld\n"
"1:\n"
" lodsb\n"
" movw (%%edx,%%eax,4),%%ax\n"
" stosw\n"
" xor %%eax,%%eax\n"
" loop 1b\n"
:"=S" (srcbyte), "=D" (_cl1), "=c" (_cl2)
:"S" (srcbyte),
"D" (dstbits),
"c" (width),
"d" (colors)
:"eax", "cc", "memory"
);
#else
DWORD* dstpixel=(DWORD*)dstbits;
for (x=0; x<width/2; x++) {
/* Do 2 pixels at a time */
*dstpixel++=(colors[srcbyte[1]] << 16) | colors[srcbyte[0]];
srcbyte+=2;
}
if (width&1) {
/* And then the odd pixel */
*((WORD*)dstpixel)=colors[srcbyte[0]];
}
#endif
srcbyte = (srcbits += linebytes);
dstbits -= bmpImage->bytes_per_line;
}
return;
}
break;
case 24:
case 32:
if (lines && width && (bmpImage->bits_per_pixel == 32) &&
(ImageByteOrder(gdi_display)==LSBFirst) )
{
dstbits=(BYTE*)bmpImage->data+left*4+(lines-1)*bmpImage->bytes_per_line;
/* ==== pal 8 dib -> rgb or bgr 0888 bmp ==== */
for (h = lines ; h--; ) {
#if defined(__i386__) && defined(__GNUC__)
int _cl1,_cl2; /* temp outputs for asm below */
/* Borrowed from DirectDraw */
__asm__ __volatile__(
"xor %%eax,%%eax\n"
"cld\n"
"1:\n"
" lodsb\n"
" movl (%%edx,%%eax,4),%%eax\n"
" stosl\n"
" xor %%eax,%%eax\n"
" loop 1b\n"
:"=S" (srcbyte), "=D" (_cl1), "=c" (_cl2)
:"S" (srcbyte),
"D" (dstbits),
"c" (width),
"d" (colors)
:"eax", "cc", "memory"
);
#else
DWORD* dstpixel=(DWORD*)dstbits;
for (x=0; x<width; x++) {
*dstpixel++=colors[*srcbyte++];
}
#endif
srcbyte = (srcbits += linebytes);
dstbits -= bmpImage->bytes_per_line;
}
return;
}
break;
default:
break; /* use slow generic case below */
}
/* ==== pal 8 dib -> any bmp format ==== */
for (h=lines-1; h>=0; h--) {
for (x=left; x<width+left; x++) {
XPutPixel(bmpImage, x, h, colors[*srcbyte++]);
}
srcbyte = (srcbits += linebytes);
}
}
/***********************************************************************
* X11DRV_DIB_GetImageBits_8
*
* GetDIBits for an 8-bit deep DIB.
*/
static void X11DRV_DIB_GetImageBits_8( int lines, BYTE *dstbits,
DWORD srcwidth, DWORD dstwidth,
RGBQUAD *colors, PALETTEENTRY *srccolors,
XImage *bmpImage, int linebytes )
{
DWORD x;
int h, width = min(srcwidth, dstwidth);
BYTE* dstbyte;
if (lines < 0 )
{
lines = -lines;
dstbits = dstbits + ( linebytes * (lines-1) );
linebytes = -linebytes;
}
/*
* Hack for now
* This condition is true when GetImageBits has been called by
* UpdateDIBSection. For now, GetNearestIndex is too slow to support
* 256 colormaps, so we'll just use it for GetDIBits calls.
* (In some cases, in an updateDIBSection, the returned colors are bad too)
*/
if (!srccolors) goto updatesection;
switch (bmpImage->depth) {
case 1:
case 4:
if (X11DRV_DIB_CheckMask(bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask)
&& srccolors) {
/* ==== pal 1 bmp -> pal 8 dib ==== */
/* ==== pal 4 bmp -> pal 8 dib ==== */
for (h=lines-1; h>=0; h--) {
dstbyte=dstbits;
for (x=0; x<width; x++) {
PALETTEENTRY srcval;
srcval=srccolors[XGetPixel(bmpImage, x, h)];
*dstbyte++=X11DRV_DIB_GetNearestIndex(colors, 256,
srcval.peRed,
srcval.peGreen,
srcval.peBlue);
}
dstbits += linebytes;
}
} else {
goto notsupported;
}
break;
case 8:
if (X11DRV_DIB_CheckMask(bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask)
&& srccolors) {
/* ==== pal 8 bmp -> pal 8 dib ==== */
const void* srcbits;
const BYTE* srcpixel;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
for (h=0; h<lines; h++) {
srcpixel=srcbits;
dstbyte=dstbits;
for (x = 0; x < width; x++) {
PALETTEENTRY srcval;
srcval=srccolors[*srcpixel++];
*dstbyte++=X11DRV_DIB_GetNearestIndex(colors, 256,
srcval.peRed,
srcval.peGreen,
srcval.peBlue);
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
goto notsupported;
}
break;
case 15:
case 16:
{
const void* srcbits;
const WORD* srcpixel;
BYTE* dstbyte;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask==0x03e0) {
if (bmpImage->red_mask==0x7c00) {
/* ==== rgb 555 bmp -> pal 8 dib ==== */
for (h=0; h<lines; h++) {
srcpixel=srcbits;
dstbyte=dstbits;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
*dstbyte++=X11DRV_DIB_GetNearestIndex
(colors, 256,
((srcval >> 7) & 0xf8) | /* r */
((srcval >> 12) & 0x07),
((srcval >> 2) & 0xf8) | /* g */
((srcval >> 7) & 0x07),
((srcval << 3) & 0xf8) | /* b */
((srcval >> 2) & 0x07) );
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else if (bmpImage->blue_mask==0x7c00) {
/* ==== bgr 555 bmp -> pal 8 dib ==== */
for (h=0; h<lines; h++) {
srcpixel=srcbits;
dstbyte=dstbits;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
*dstbyte++=X11DRV_DIB_GetNearestIndex
(colors, 256,
((srcval << 3) & 0xf8) | /* r */
((srcval >> 2) & 0x07),
((srcval >> 2) & 0xf8) | /* g */
((srcval >> 7) & 0x07),
((srcval >> 7) & 0xf8) | /* b */
((srcval >> 12) & 0x07) );
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
goto notsupported;
}
} else if (bmpImage->green_mask==0x07e0) {
if (bmpImage->red_mask==0xf800) {
/* ==== rgb 565 bmp -> pal 8 dib ==== */
for (h=0; h<lines; h++) {
srcpixel=srcbits;
dstbyte=dstbits;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
*dstbyte++=X11DRV_DIB_GetNearestIndex
(colors, 256,
((srcval >> 8) & 0xf8) | /* r */
((srcval >> 13) & 0x07),
((srcval >> 3) & 0xfc) | /* g */
((srcval >> 9) & 0x03),
((srcval << 3) & 0xf8) | /* b */
((srcval >> 2) & 0x07) );
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else if (bmpImage->blue_mask==0xf800) {
/* ==== bgr 565 bmp -> pal 8 dib ==== */
for (h=0; h<lines; h++) {
srcpixel=srcbits;
dstbyte=dstbits;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
*dstbyte++=X11DRV_DIB_GetNearestIndex
(colors, 256,
((srcval << 3) & 0xf8) | /* r */
((srcval >> 2) & 0x07),
((srcval >> 3) & 0xfc) | /* g */
((srcval >> 9) & 0x03),
((srcval >> 8) & 0xf8) | /* b */
((srcval >> 13) & 0x07) );
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
goto notsupported;
}
} else {
goto notsupported;
}
}
break;
case 24:
case 32:
{
const void* srcbits;
const BYTE *srcbyte;
BYTE* dstbyte;
int bytes_per_pixel;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
bytes_per_pixel=(bmpImage->bits_per_pixel==24?3:4);
if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
} else if (bmpImage->blue_mask==0xff) {
/* ==== rgb 888 or 0888 bmp -> pal 8 dib ==== */
for (h=0; h<lines; h++) {
srcbyte=srcbits;
dstbyte=dstbits;
for (x=0; x<width; x++) {
*dstbyte++=X11DRV_DIB_GetNearestIndex
(colors, 256,
srcbyte[2],
srcbyte[1],
srcbyte[0]);
srcbyte+=bytes_per_pixel;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
/* ==== bgr 888 or 0888 bmp -> pal 8 dib ==== */
for (h=0; h<lines; h++) {
srcbyte=srcbits;
dstbyte=dstbits;
for (x=0; x<width; x++) {
*dstbyte++=X11DRV_DIB_GetNearestIndex
(colors, 256,
srcbyte[0],
srcbyte[1],
srcbyte[2]);
srcbyte+=bytes_per_pixel;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
}
}
break;
default:
notsupported:
WARN("from unknown %d bit bitmap (%lx,%lx,%lx) to 8 bit DIB\n",
bmpImage->depth, bmpImage->red_mask,
bmpImage->green_mask, bmpImage->blue_mask );
updatesection:
/* ==== any bmp format -> pal 8 dib ==== */
for (h=lines-1; h>=0; h--) {
dstbyte=dstbits;
for (x=0; x<width; x++) {
*dstbyte=X11DRV_DIB_MapColor
((int*)colors, 256,
XGetPixel(bmpImage, x, h), *dstbyte);
dstbyte++;
}
dstbits += linebytes;
}
break;
}
}
/***********************************************************************
* X11DRV_DIB_SetImageBits_RLE8
*
* SetDIBits for an 8-bit deep compressed DIB.
*
* This function rewritten 941113 by James Youngman. WINE blew out when I
* first ran it because my desktop wallpaper is a (large) RLE8 bitmap.
*
* This was because the algorithm assumed that all RLE8 bitmaps end with the
* 'End of bitmap' escape code. This code is very much laxer in what it
* allows to end the expansion. Possibly too lax. See the note by
* case RleDelta. BTW, MS's documentation implies that a correct RLE8
* bitmap should end with RleEnd, but on the other hand, software exists
* that produces ones that don't and Windows 3.1 doesn't complain a bit
* about it.
*
* (No) apologies for my English spelling. [Emacs users: c-indent-level=4].
* James A. Youngman <mbcstjy@afs.man.ac.uk>
* [JAY]
*/
static void X11DRV_DIB_SetImageBits_RLE8( int lines, const BYTE *bits,
DWORD srcwidth, DWORD dstwidth,
int left, int *colors,
XImage *bmpImage )
{
unsigned int x; /* X-position on each line. Increases. */
int y; /* Line #. Starts at lines-1, decreases */
const BYTE *pIn = bits; /* Pointer to current position in bits */
BYTE length; /* The length pf a run */
BYTE escape_code; /* See enum Rle8_EscapeCodes.*/
/*
* Note that the bitmap data is stored by Windows starting at the
* bottom line of the bitmap and going upwards. Within each line,
* the data is stored left-to-right. That's the reason why line
* goes from lines-1 to 0. [JAY]
*/
x = 0;
y = lines - 1;
while (y >= 0)
{
length = *pIn++;
/*
* If the length byte is not zero (which is the escape value),
* We have a run of length pixels all the same colour. The colour
* index is stored next.
*
* If the length byte is zero, we need to read the next byte to
* know what to do. [JAY]
*/
if (length != 0)
{
/*
* [Run-Length] Encoded mode
*/
int color = colors[*pIn++];
while (length-- && x < (left + dstwidth)) {
if( x >= left) XPutPixel(bmpImage, x, y, color);
x++;
}
}
else
{
/*
* Escape codes (may be an absolute sequence though)
*/
escape_code = (*pIn++);
switch(escape_code)
{
case RLE_EOL:
x = 0;
y--;
break;
case RLE_END:
/* Not all RLE8 bitmaps end with this code. For
* example, Paint Shop Pro produces some that don't.
* That's (I think) what caused the previous
* implementation to fail. [JAY]
*/
return;
case RLE_DELTA:
x += (*pIn++);
y -= (*pIn++);
break;
default: /* switch to absolute mode */
length = escape_code;
while (length--)
{
int color = colors[*pIn++];
if (x >= (left + dstwidth))
{
pIn += length;
break;
}
if( x >= left) XPutPixel(bmpImage, x, y, color);
x++;
}
/*
* If you think for a moment you'll realise that the
* only time we could ever possibly read an odd
* number of bytes is when there is a 0x00 (escape),
* a value >0x02 (absolute mode) and then an odd-
* length run. Therefore this is the only place we
* need to worry about it. Everywhere else the
* bytes are always read in pairs. [JAY]
*/
if (escape_code & 1) pIn++; /* Throw away the pad byte. */
break;
} /* switch (escape_code) : Escape sequence */
}
}
}
/***********************************************************************
* X11DRV_DIB_SetImageBits_16
*
* SetDIBits for a 16-bit deep DIB.
*/
static void X11DRV_DIB_SetImageBits_16( int lines, const BYTE *srcbits,
DWORD srcwidth, DWORD dstwidth, int left,
X11DRV_PDEVICE *physDev, DWORD rSrc, DWORD gSrc, DWORD bSrc,
XImage *bmpImage, int linebytes )
{
DWORD x;
int h, width = min(srcwidth, dstwidth);
const dib_conversions *convs = (bmpImage->byte_order == LSBFirst) ? &dib_normal : &dib_dst_byteswap;
if (lines < 0 )
{
lines = -lines;
srcbits = srcbits + ( linebytes * (lines-1));
linebytes = -linebytes;
}
switch (bmpImage->depth)
{
case 15:
case 16:
{
char* dstbits;
srcbits=srcbits+left*2;
dstbits=bmpImage->data+left*2+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask==0x03e0) {
if (gSrc==bmpImage->green_mask) {
if (rSrc==bmpImage->red_mask) {
/* ==== rgb 555 dib -> rgb 555 bmp ==== */
/* ==== bgr 555 dib -> bgr 555 bmp ==== */
convs->Convert_5x5_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else if (rSrc==bmpImage->blue_mask) {
/* ==== rgb 555 dib -> bgr 555 bmp ==== */
/* ==== bgr 555 dib -> rgb 555 bmp ==== */
convs->Convert_555_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
}
} else {
if (rSrc==bmpImage->red_mask || bSrc==bmpImage->blue_mask) {
/* ==== rgb 565 dib -> rgb 555 bmp ==== */
/* ==== bgr 565 dib -> bgr 555 bmp ==== */
convs->Convert_565_to_555_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
/* ==== rgb 565 dib -> bgr 555 bmp ==== */
/* ==== bgr 565 dib -> rgb 555 bmp ==== */
convs->Convert_565_to_555_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
}
}
} else if (bmpImage->green_mask==0x07e0) {
if (gSrc==bmpImage->green_mask) {
if (rSrc==bmpImage->red_mask) {
/* ==== rgb 565 dib -> rgb 565 bmp ==== */
/* ==== bgr 565 dib -> bgr 565 bmp ==== */
convs->Convert_5x5_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
/* ==== rgb 565 dib -> bgr 565 bmp ==== */
/* ==== bgr 565 dib -> rgb 565 bmp ==== */
convs->Convert_565_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
}
} else {
if (rSrc==bmpImage->red_mask || bSrc==bmpImage->blue_mask) {
/* ==== rgb 555 dib -> rgb 565 bmp ==== */
/* ==== bgr 555 dib -> bgr 565 bmp ==== */
convs->Convert_555_to_565_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
/* ==== rgb 555 dib -> bgr 565 bmp ==== */
/* ==== bgr 555 dib -> rgb 565 bmp ==== */
convs->Convert_555_to_565_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
}
}
} else {
goto notsupported;
}
}
break;
case 24:
if (bmpImage->bits_per_pixel==24) {
char* dstbits;
srcbits=srcbits+left*2;
dstbits=bmpImage->data+left*3+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
} else if ((rSrc==0x1f && bmpImage->red_mask==0xff) ||
(bSrc==0x1f && bmpImage->blue_mask==0xff)) {
if (gSrc==0x03e0) {
/* ==== rgb 555 dib -> rgb 888 bmp ==== */
/* ==== bgr 555 dib -> bgr 888 bmp ==== */
convs->Convert_555_to_888_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
/* ==== rgb 565 dib -> rgb 888 bmp ==== */
/* ==== bgr 565 dib -> bgr 888 bmp ==== */
convs->Convert_565_to_888_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
}
} else {
if (gSrc==0x03e0) {
/* ==== rgb 555 dib -> bgr 888 bmp ==== */
/* ==== bgr 555 dib -> rgb 888 bmp ==== */
convs->Convert_555_to_888_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
/* ==== rgb 565 dib -> bgr 888 bmp ==== */
/* ==== bgr 565 dib -> rgb 888 bmp ==== */
convs->Convert_565_to_888_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
}
}
break;
}
/* Fall through */
case 32:
{
char* dstbits;
srcbits=srcbits+left*2;
dstbits=bmpImage->data+left*4+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
} else if ((rSrc==0x1f && bmpImage->red_mask==0xff) ||
(bSrc==0x1f && bmpImage->blue_mask==0xff)) {
if (gSrc==0x03e0) {
/* ==== rgb 555 dib -> rgb 0888 bmp ==== */
/* ==== bgr 555 dib -> bgr 0888 bmp ==== */
convs->Convert_555_to_0888_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
/* ==== rgb 565 dib -> rgb 0888 bmp ==== */
/* ==== bgr 565 dib -> bgr 0888 bmp ==== */
convs->Convert_565_to_0888_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
}
} else {
if (gSrc==0x03e0) {
/* ==== rgb 555 dib -> bgr 0888 bmp ==== */
/* ==== bgr 555 dib -> rgb 0888 bmp ==== */
convs->Convert_555_to_0888_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
/* ==== rgb 565 dib -> bgr 0888 bmp ==== */
/* ==== bgr 565 dib -> rgb 0888 bmp ==== */
convs->Convert_565_to_0888_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
}
}
}
break;
default:
notsupported:
WARN("from 16 bit DIB (%x,%x,%x) to unknown %d bit bitmap (%lx,%lx,%lx)\n",
rSrc, gSrc, bSrc, bmpImage->bits_per_pixel, bmpImage->red_mask,
bmpImage->green_mask, bmpImage->blue_mask );
/* fall through */
case 1:
case 4:
case 8:
{
/* ==== rgb or bgr 555 or 565 dib -> pal 1, 4 or 8 ==== */
const WORD* srcpixel;
int rShift1,gShift1,bShift1;
int rShift2,gShift2,bShift2;
BYTE gMask1,gMask2;
/* Set color scaling values */
rShift1=16+X11DRV_DIB_MaskToShift(rSrc)-3;
gShift1=16+X11DRV_DIB_MaskToShift(gSrc)-3;
bShift1=16+X11DRV_DIB_MaskToShift(bSrc)-3;
rShift2=rShift1+5;
gShift2=gShift1+5;
bShift2=bShift1+5;
if (gSrc==0x03e0) {
/* Green has 5 bits, like the others */
gMask1=0xf8;
gMask2=0x07;
} else {
/* Green has 6 bits, not 5. Compensate. */
gShift1++;
gShift2+=2;
gMask1=0xfc;
gMask2=0x03;
}
srcbits+=2*left;
/* We could split it into four separate cases to optimize
* but it is probably not worth it.
*/
for (h=lines-1; h>=0; h--) {
srcpixel=(const WORD*)srcbits;
for (x=left; x<width+left; x++) {
DWORD srcval;
BYTE red,green,blue;
srcval=*srcpixel++ << 16;
red= ((srcval >> rShift1) & 0xf8) |
((srcval >> rShift2) & 0x07);
green=((srcval >> gShift1) & gMask1) |
((srcval >> gShift2) & gMask2);
blue= ((srcval >> bShift1) & 0xf8) |
((srcval >> bShift2) & 0x07);
XPutPixel(bmpImage, x, h,
X11DRV_PALETTE_ToPhysical
(physDev, RGB(red,green,blue)));
}
srcbits += linebytes;
}
}
break;
}
}
/***********************************************************************
* X11DRV_DIB_GetImageBits_16
*
* GetDIBits for an 16-bit deep DIB.
*/
static void X11DRV_DIB_GetImageBits_16( int lines, BYTE *dstbits,
DWORD dstwidth, DWORD srcwidth,
PALETTEENTRY *srccolors,
DWORD rDst, DWORD gDst, DWORD bDst,
XImage *bmpImage, int linebytes )
{
DWORD x;
int h, width = min(srcwidth, dstwidth);
const dib_conversions *convs = (bmpImage->byte_order == LSBFirst) ? &dib_normal : &dib_src_byteswap;
if (lines < 0 )
{
lines = -lines;
dstbits = dstbits + ( linebytes * (lines-1));
linebytes = -linebytes;
}
switch (bmpImage->depth)
{
case 15:
case 16:
{
const char* srcbits;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask==0x03e0) {
if (gDst==bmpImage->green_mask) {
if (rDst==bmpImage->red_mask) {
/* ==== rgb 555 bmp -> rgb 555 dib ==== */
/* ==== bgr 555 bmp -> bgr 555 dib ==== */
convs->Convert_5x5_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
/* ==== rgb 555 bmp -> bgr 555 dib ==== */
/* ==== bgr 555 bmp -> rgb 555 dib ==== */
convs->Convert_555_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
}
} else {
if (rDst==bmpImage->red_mask || bDst==bmpImage->blue_mask) {
/* ==== rgb 555 bmp -> rgb 565 dib ==== */
/* ==== bgr 555 bmp -> bgr 565 dib ==== */
convs->Convert_555_to_565_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
/* ==== rgb 555 bmp -> bgr 565 dib ==== */
/* ==== bgr 555 bmp -> rgb 565 dib ==== */
convs->Convert_555_to_565_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
}
}
} else if (bmpImage->green_mask==0x07e0) {
if (gDst==bmpImage->green_mask) {
if (rDst == bmpImage->red_mask) {
/* ==== rgb 565 bmp -> rgb 565 dib ==== */
/* ==== bgr 565 bmp -> bgr 565 dib ==== */
convs->Convert_5x5_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
/* ==== rgb 565 bmp -> bgr 565 dib ==== */
/* ==== bgr 565 bmp -> rgb 565 dib ==== */
convs->Convert_565_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
}
} else {
if (rDst==bmpImage->red_mask || bDst==bmpImage->blue_mask) {
/* ==== rgb 565 bmp -> rgb 555 dib ==== */
/* ==== bgr 565 bmp -> bgr 555 dib ==== */
convs->Convert_565_to_555_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
/* ==== rgb 565 bmp -> bgr 555 dib ==== */
/* ==== bgr 565 bmp -> rgb 555 dib ==== */
convs->Convert_565_to_555_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
}
}
} else {
goto notsupported;
}
}
break;
case 24:
if (bmpImage->bits_per_pixel == 24) {
const char* srcbits;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
} else if ((rDst==0x1f && bmpImage->red_mask==0xff) ||
(bDst==0x1f && bmpImage->blue_mask==0xff)) {
if (gDst==0x03e0) {
/* ==== rgb 888 bmp -> rgb 555 dib ==== */
/* ==== bgr 888 bmp -> bgr 555 dib ==== */
convs->Convert_888_to_555_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
/* ==== rgb 888 bmp -> rgb 565 dib ==== */
/* ==== rgb 888 bmp -> rgb 565 dib ==== */
convs->Convert_888_to_565_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
}
} else {
if (gDst==0x03e0) {
/* ==== rgb 888 bmp -> bgr 555 dib ==== */
/* ==== bgr 888 bmp -> rgb 555 dib ==== */
convs->Convert_888_to_555_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
/* ==== rgb 888 bmp -> bgr 565 dib ==== */
/* ==== bgr 888 bmp -> rgb 565 dib ==== */
convs->Convert_888_to_565_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
}
}
break;
}
/* Fall through */
case 32:
{
const char* srcbits;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
} else if ((rDst==0x1f && bmpImage->red_mask==0xff) ||
(bDst==0x1f && bmpImage->blue_mask==0xff)) {
if (gDst==0x03e0) {
/* ==== rgb 0888 bmp -> rgb 555 dib ==== */
/* ==== bgr 0888 bmp -> bgr 555 dib ==== */
convs->Convert_0888_to_555_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
/* ==== rgb 0888 bmp -> rgb 565 dib ==== */
/* ==== bgr 0888 bmp -> bgr 565 dib ==== */
convs->Convert_0888_to_565_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
}
} else {
if (gDst==0x03e0) {
/* ==== rgb 0888 bmp -> bgr 555 dib ==== */
/* ==== bgr 0888 bmp -> rgb 555 dib ==== */
convs->Convert_0888_to_555_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
/* ==== rgb 0888 bmp -> bgr 565 dib ==== */
/* ==== bgr 0888 bmp -> rgb 565 dib ==== */
convs->Convert_0888_to_565_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
}
}
}
break;
case 1:
case 4:
if (X11DRV_DIB_CheckMask(bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask)
&& srccolors) {
/* ==== pal 1 or 4 bmp -> rgb or bgr 555 or 565 dib ==== */
int rShift,gShift,bShift;
WORD* dstpixel;
/* Shift everything 16 bits left so that all shifts are >0,
* even for BGR DIBs. Then a single >> 16 will bring everything
* back into place.
*/
rShift=16+X11DRV_DIB_MaskToShift(rDst)-3;
gShift=16+X11DRV_DIB_MaskToShift(gDst)-3;
bShift=16+X11DRV_DIB_MaskToShift(bDst)-3;
if (gDst==0x07e0) {
/* 6 bits for the green */
gShift++;
}
rDst=rDst << 16;
gDst=gDst << 16;
bDst=bDst << 16;
for (h = lines - 1; h >= 0; h--) {
dstpixel=(LPWORD)dstbits;
for (x = 0; x < width; x++) {
PALETTEENTRY srcval;
DWORD dstval;
srcval=srccolors[XGetPixel(bmpImage, x, h)];
dstval=((srcval.peRed << rShift) & rDst) |
((srcval.peGreen << gShift) & gDst) |
((srcval.peBlue << bShift) & bDst);
*dstpixel++=dstval >> 16;
}
dstbits += linebytes;
}
} else {
goto notsupported;
}
break;
case 8:
if (X11DRV_DIB_CheckMask(bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask)
&& srccolors) {
/* ==== pal 8 bmp -> rgb or bgr 555 or 565 dib ==== */
int rShift,gShift,bShift;
const BYTE* srcbits;
const BYTE* srcpixel;
WORD* dstpixel;
/* Shift everything 16 bits left so that all shifts are >0,
* even for BGR DIBs. Then a single >> 16 will bring everything
* back into place.
*/
rShift=16+X11DRV_DIB_MaskToShift(rDst)-3;
gShift=16+X11DRV_DIB_MaskToShift(gDst)-3;
bShift=16+X11DRV_DIB_MaskToShift(bDst)-3;
if (gDst==0x07e0) {
/* 6 bits for the green */
gShift++;
}
rDst=rDst << 16;
gDst=gDst << 16;
bDst=bDst << 16;
srcbits=(BYTE*)bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
for (h=0; h<lines; h++) {
srcpixel=srcbits;
dstpixel=(LPWORD)dstbits;
for (x = 0; x < width; x++) {
PALETTEENTRY srcval;
DWORD dstval;
srcval=srccolors[*srcpixel++];
dstval=((srcval.peRed << rShift) & rDst) |
((srcval.peGreen << gShift) & gDst) |
((srcval.peBlue << bShift) & bDst);
*dstpixel++=dstval >> 16;
}
srcbits -= bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
goto notsupported;
}
break;
default:
notsupported:
{
/* ==== any bmp format -> rgb or bgr 555 or 565 dib ==== */
int rShift,gShift,bShift;
WORD* dstpixel;
WARN("from unknown %d bit bitmap (%lx,%lx,%lx) to 16 bit DIB (%x,%x,%x)\n",
bmpImage->depth, bmpImage->red_mask,
bmpImage->green_mask, bmpImage->blue_mask,
rDst, gDst, bDst);
/* Shift everything 16 bits left so that all shifts are >0,
* even for BGR DIBs. Then a single >> 16 will bring everything
* back into place.
*/
rShift=16+X11DRV_DIB_MaskToShift(rDst)-3;
gShift=16+X11DRV_DIB_MaskToShift(gDst)-3;
bShift=16+X11DRV_DIB_MaskToShift(bDst)-3;
if (gDst==0x07e0) {
/* 6 bits for the green */
gShift++;
}
rDst=rDst << 16;
gDst=gDst << 16;
bDst=bDst << 16;
for (h = lines - 1; h >= 0; h--) {
dstpixel=(LPWORD)dstbits;
for (x = 0; x < width; x++) {
COLORREF srcval;
DWORD dstval;
srcval=X11DRV_PALETTE_ToLogical(XGetPixel(bmpImage, x, h));
dstval=((GetRValue(srcval) << rShift) & rDst) |
((GetGValue(srcval) << gShift) & gDst) |
((GetBValue(srcval) << bShift) & bDst);
*dstpixel++=dstval >> 16;
}
dstbits += linebytes;
}
}
break;
}
}
/***********************************************************************
* X11DRV_DIB_SetImageBits_24
*
* SetDIBits for a 24-bit deep DIB.
*/
static void X11DRV_DIB_SetImageBits_24( int lines, const BYTE *srcbits,
DWORD srcwidth, DWORD dstwidth, int left,
X11DRV_PDEVICE *physDev,
DWORD rSrc, DWORD gSrc, DWORD bSrc,
XImage *bmpImage, DWORD linebytes )
{
DWORD x;
int h, width = min(srcwidth, dstwidth);
const dib_conversions *convs = (bmpImage->byte_order == LSBFirst) ? &dib_normal : &dib_dst_byteswap;
if (lines < 0 )
{
lines = -lines;
srcbits = srcbits + linebytes * (lines - 1);
linebytes = -linebytes;
}
switch (bmpImage->depth)
{
case 24:
if (bmpImage->bits_per_pixel==24) {
char* dstbits;
srcbits=srcbits+left*3;
dstbits=bmpImage->data+left*3+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
} else if (rSrc==bmpImage->red_mask) {
/* ==== rgb 888 dib -> rgb 888 bmp ==== */
/* ==== bgr 888 dib -> bgr 888 bmp ==== */
convs->Convert_888_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
/* ==== rgb 888 dib -> bgr 888 bmp ==== */
/* ==== bgr 888 dib -> rgb 888 bmp ==== */
convs->Convert_888_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
}
break;
}
/* fall through */
case 32:
{
char* dstbits;
srcbits=srcbits+left*3;
dstbits=bmpImage->data+left*4+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
} else if (rSrc==bmpImage->red_mask) {
/* ==== rgb 888 dib -> rgb 0888 bmp ==== */
/* ==== bgr 888 dib -> bgr 0888 bmp ==== */
convs->Convert_888_to_0888_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
/* ==== rgb 888 dib -> bgr 0888 bmp ==== */
/* ==== bgr 888 dib -> rgb 0888 bmp ==== */
convs->Convert_888_to_0888_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
}
break;
}
case 15:
case 16:
{
char* dstbits;
srcbits=srcbits+left*3;
dstbits=bmpImage->data+left*2+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask==0x03e0) {
if ((rSrc==0xff0000 && bmpImage->red_mask==0x7f00) ||
(bSrc==0xff0000 && bmpImage->blue_mask==0x7f00)) {
/* ==== rgb 888 dib -> rgb 555 bmp ==== */
/* ==== bgr 888 dib -> bgr 555 bmp ==== */
convs->Convert_888_to_555_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else if ((rSrc==0xff && bmpImage->red_mask==0x7f00) ||
(bSrc==0xff && bmpImage->blue_mask==0x7f00)) {
/* ==== rgb 888 dib -> bgr 555 bmp ==== */
/* ==== bgr 888 dib -> rgb 555 bmp ==== */
convs->Convert_888_to_555_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
goto notsupported;
}
} else if (bmpImage->green_mask==0x07e0) {
if ((rSrc==0xff0000 && bmpImage->red_mask==0xf800) ||
(bSrc==0xff0000 && bmpImage->blue_mask==0xf800)) {
/* ==== rgb 888 dib -> rgb 565 bmp ==== */
/* ==== bgr 888 dib -> bgr 565 bmp ==== */
convs->Convert_888_to_565_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else if ((rSrc==0xff && bmpImage->red_mask==0xf800) ||
(bSrc==0xff && bmpImage->blue_mask==0xf800)) {
/* ==== rgb 888 dib -> bgr 565 bmp ==== */
/* ==== bgr 888 dib -> rgb 565 bmp ==== */
convs->Convert_888_to_565_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
goto notsupported;
}
} else {
goto notsupported;
}
}
break;
default:
notsupported:
WARN("from 24 bit DIB (%x,%x,%x) to unknown %d bit bitmap (%lx,%lx,%lx)\n",
rSrc, gSrc, bSrc, bmpImage->bits_per_pixel, bmpImage->red_mask,
bmpImage->green_mask, bmpImage->blue_mask );
/* fall through */
case 1:
case 4:
case 8:
{
/* ==== rgb 888 dib -> any bmp format ==== */
const BYTE* srcbyte;
/* Windows only supports one 24bpp DIB format: RGB888 */
srcbits+=left*3;
for (h = lines - 1; h >= 0; h--) {
srcbyte = srcbits;
for (x = left; x < width+left; x++) {
XPutPixel(bmpImage, x, h,
X11DRV_PALETTE_ToPhysical
(physDev, RGB(srcbyte[2], srcbyte[1], srcbyte[0])));
srcbyte+=3;
}
srcbits += linebytes;
}
}
break;
}
}
/***********************************************************************
* X11DRV_DIB_GetImageBits_24
*
* GetDIBits for an 24-bit deep DIB.
*/
static void X11DRV_DIB_GetImageBits_24( int lines, BYTE *dstbits,
DWORD dstwidth, DWORD srcwidth,
PALETTEENTRY *srccolors,
DWORD rDst, DWORD gDst, DWORD bDst,
XImage *bmpImage, DWORD linebytes )
{
DWORD x;
int h, width = min(srcwidth, dstwidth);
const dib_conversions *convs = (bmpImage->byte_order == LSBFirst) ? &dib_normal : &dib_src_byteswap;
if (lines < 0 )
{
lines = -lines;
dstbits = dstbits + ( linebytes * (lines-1) );
linebytes = -linebytes;
}
switch (bmpImage->depth)
{
case 24:
if (bmpImage->bits_per_pixel==24) {
const char* srcbits;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
} else if (rDst==bmpImage->red_mask) {
/* ==== rgb 888 bmp -> rgb 888 dib ==== */
/* ==== bgr 888 bmp -> bgr 888 dib ==== */
convs->Convert_888_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
/* ==== rgb 888 bmp -> bgr 888 dib ==== */
/* ==== bgr 888 bmp -> rgb 888 dib ==== */
convs->Convert_888_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
}
break;
}
/* fall through */
case 32:
{
const char* srcbits;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
} else if (rDst==bmpImage->red_mask) {
/* ==== rgb 888 bmp -> rgb 0888 dib ==== */
/* ==== bgr 888 bmp -> bgr 0888 dib ==== */
convs->Convert_0888_to_888_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
/* ==== rgb 888 bmp -> bgr 0888 dib ==== */
/* ==== bgr 888 bmp -> rgb 0888 dib ==== */
convs->Convert_0888_to_888_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
}
break;
}
case 15:
case 16:
{
const char* srcbits;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
if (bmpImage->green_mask==0x03e0) {
if ((rDst==0xff0000 && bmpImage->red_mask==0x7f00) ||
(bDst==0xff0000 && bmpImage->blue_mask==0x7f00)) {
/* ==== rgb 555 bmp -> rgb 888 dib ==== */
/* ==== bgr 555 bmp -> bgr 888 dib ==== */
convs->Convert_555_to_888_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else if ((rDst==0xff && bmpImage->red_mask==0x7f00) ||
(bDst==0xff && bmpImage->blue_mask==0x7f00)) {
/* ==== rgb 555 bmp -> bgr 888 dib ==== */
/* ==== bgr 555 bmp -> rgb 888 dib ==== */
convs->Convert_555_to_888_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
goto notsupported;
}
} else if (bmpImage->green_mask==0x07e0) {
if ((rDst==0xff0000 && bmpImage->red_mask==0xf800) ||
(bDst==0xff0000 && bmpImage->blue_mask==0xf800)) {
/* ==== rgb 565 bmp -> rgb 888 dib ==== */
/* ==== bgr 565 bmp -> bgr 888 dib ==== */
convs->Convert_565_to_888_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else if ((rDst==0xff && bmpImage->red_mask==0xf800) ||
(bDst==0xff && bmpImage->blue_mask==0xf800)) {
/* ==== rgb 565 bmp -> bgr 888 dib ==== */
/* ==== bgr 565 bmp -> rgb 888 dib ==== */
convs->Convert_565_to_888_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
goto notsupported;
}
} else {
goto notsupported;
}
}
break;
case 1:
case 4:
if (X11DRV_DIB_CheckMask(bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask)
&& srccolors) {
/* ==== pal 1 or 4 bmp -> rgb 888 dib ==== */
BYTE* dstbyte;
/* Windows only supports one 24bpp DIB format: rgb 888 */
for (h = lines - 1; h >= 0; h--) {
dstbyte=dstbits;
for (x = 0; x < width; x++) {
PALETTEENTRY srcval;
srcval=srccolors[XGetPixel(bmpImage, x, h)];
dstbyte[0]=srcval.peBlue;
dstbyte[1]=srcval.peGreen;
dstbyte[2]=srcval.peRed;
dstbyte+=3;
}
dstbits += linebytes;
}
} else {
goto notsupported;
}
break;
case 8:
if (X11DRV_DIB_CheckMask(bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask)
&& srccolors) {
/* ==== pal 8 bmp -> rgb 888 dib ==== */
const void* srcbits;
const BYTE* srcpixel;
BYTE* dstbyte;
/* Windows only supports one 24bpp DIB format: rgb 888 */
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
for (h = lines - 1; h >= 0; h--) {
srcpixel=srcbits;
dstbyte=dstbits;
for (x = 0; x < width; x++ ) {
PALETTEENTRY srcval;
srcval=srccolors[*srcpixel++];
dstbyte[0]=srcval.peBlue;
dstbyte[1]=srcval.peGreen;
dstbyte[2]=srcval.peRed;
dstbyte+=3;
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
goto notsupported;
}
break;
default:
notsupported:
{
/* ==== any bmp format -> 888 dib ==== */
BYTE* dstbyte;
WARN("from unknown %d bit bitmap (%lx,%lx,%lx) to 24 bit DIB (%x,%x,%x)\n",
bmpImage->depth, bmpImage->red_mask,
bmpImage->green_mask, bmpImage->blue_mask,
rDst, gDst, bDst );
/* Windows only supports one 24bpp DIB format: rgb 888 */
for (h = lines - 1; h >= 0; h--) {
dstbyte=dstbits;
for (x = 0; x < width; x++) {
COLORREF srcval=X11DRV_PALETTE_ToLogical
(XGetPixel( bmpImage, x, h ));
dstbyte[0]=GetBValue(srcval);
dstbyte[1]=GetGValue(srcval);
dstbyte[2]=GetRValue(srcval);
dstbyte+=3;
}
dstbits += linebytes;
}
}
break;
}
}
/***********************************************************************
* X11DRV_DIB_SetImageBits_32
*
* SetDIBits for a 32-bit deep DIB.
*/
static void X11DRV_DIB_SetImageBits_32(int lines, const BYTE *srcbits,
DWORD srcwidth, DWORD dstwidth, int left,
X11DRV_PDEVICE *physDev,
DWORD rSrc, DWORD gSrc, DWORD bSrc,
XImage *bmpImage,
DWORD linebytes)
{
DWORD x;
int h, width = min(srcwidth, dstwidth);
const dib_conversions *convs = (bmpImage->byte_order == LSBFirst) ? &dib_normal : &dib_dst_byteswap;
if (lines < 0 )
{
lines = -lines;
srcbits = srcbits + ( linebytes * (lines-1) );
linebytes = -linebytes;
}
switch (bmpImage->depth)
{
case 24:
if (bmpImage->bits_per_pixel==24) {
char* dstbits;
srcbits=srcbits+left*4;
dstbits=bmpImage->data+left*3+(lines-1)*bmpImage->bytes_per_line;
if (rSrc==bmpImage->red_mask && gSrc==bmpImage->green_mask && bSrc==bmpImage->blue_mask) {
/* ==== rgb 0888 dib -> rgb 888 bmp ==== */
/* ==== bgr 0888 dib -> bgr 888 bmp ==== */
convs->Convert_0888_to_888_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
/* the tests below assume sane bmpImage masks */
} else if (rSrc==bmpImage->blue_mask && gSrc==bmpImage->green_mask && bSrc==bmpImage->red_mask) {
/* ==== rgb 0888 dib -> bgr 888 bmp ==== */
/* ==== bgr 0888 dib -> rgb 888 bmp ==== */
convs->Convert_0888_to_888_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else if (bmpImage->blue_mask==0xff) {
/* ==== any 0888 dib -> rgb 888 bmp ==== */
convs->Convert_any0888_to_rgb888
(width,lines,
srcbits,linebytes,
rSrc,gSrc,bSrc,
dstbits,-bmpImage->bytes_per_line);
} else {
/* ==== any 0888 dib -> bgr 888 bmp ==== */
convs->Convert_any0888_to_bgr888
(width,lines,
srcbits,linebytes,
rSrc,gSrc,bSrc,
dstbits,-bmpImage->bytes_per_line);
}
break;
}
/* fall through */
case 32:
{
char* dstbits;
srcbits=srcbits+left*4;
dstbits=bmpImage->data+left*4+(lines-1)*bmpImage->bytes_per_line;
if (gSrc==bmpImage->green_mask) {
if (rSrc==bmpImage->red_mask && bSrc==bmpImage->blue_mask) {
/* ==== rgb 0888 dib -> rgb 0888 bmp ==== */
/* ==== bgr 0888 dib -> bgr 0888 bmp ==== */
convs->Convert_0888_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
/* the tests below assume sane bmpImage masks */
} else if (rSrc==bmpImage->blue_mask && bSrc==bmpImage->red_mask) {
/* ==== rgb 0888 dib -> bgr 0888 bmp ==== */
/* ==== bgr 0888 dib -> rgb 0888 bmp ==== */
convs->Convert_0888_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
/* ==== any 0888 dib -> any 0888 bmp ==== */
convs->Convert_0888_any
(width,lines,
srcbits,linebytes,
rSrc,gSrc,bSrc,
dstbits,-bmpImage->bytes_per_line,
bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask);
}
} else if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
/* the tests below assume sane bmpImage masks */
} else {
/* ==== any 0888 dib -> any 0888 bmp ==== */
convs->Convert_0888_any
(width,lines,
srcbits,linebytes,
rSrc,gSrc,bSrc,
dstbits,-bmpImage->bytes_per_line,
bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask);
}
}
break;
case 15:
case 16:
{
char* dstbits;
srcbits=srcbits+left*4;
dstbits=bmpImage->data+left*2+(lines-1)*bmpImage->bytes_per_line;
if (rSrc==0xff0000 && gSrc==0x00ff00 && bSrc==0x0000ff) {
if (bmpImage->green_mask==0x03e0) {
if (bmpImage->red_mask==0x7f00) {
/* ==== rgb 0888 dib -> rgb 555 bmp ==== */
convs->Convert_0888_to_555_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else if (bmpImage->blue_mask==0x7f00) {
/* ==== rgb 0888 dib -> bgr 555 bmp ==== */
convs->Convert_0888_to_555_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
goto notsupported;
}
} else if (bmpImage->green_mask==0x07e0) {
if (bmpImage->red_mask==0xf800) {
/* ==== rgb 0888 dib -> rgb 565 bmp ==== */
convs->Convert_0888_to_565_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else if (bmpImage->blue_mask==0xf800) {
/* ==== rgb 0888 dib -> bgr 565 bmp ==== */
convs->Convert_0888_to_565_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
goto notsupported;
}
} else {
goto notsupported;
}
} else if (rSrc==0x0000ff && gSrc==0x00ff00 && bSrc==0xff0000) {
if (bmpImage->green_mask==0x03e0) {
if (bmpImage->blue_mask==0x7f00) {
/* ==== bgr 0888 dib -> bgr 555 bmp ==== */
convs->Convert_0888_to_555_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else if (bmpImage->red_mask==0x7f00) {
/* ==== bgr 0888 dib -> rgb 555 bmp ==== */
convs->Convert_0888_to_555_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
goto notsupported;
}
} else if (bmpImage->green_mask==0x07e0) {
if (bmpImage->blue_mask==0xf800) {
/* ==== bgr 0888 dib -> bgr 565 bmp ==== */
convs->Convert_0888_to_565_asis
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else if (bmpImage->red_mask==0xf800) {
/* ==== bgr 0888 dib -> rgb 565 bmp ==== */
convs->Convert_0888_to_565_reverse
(width,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
goto notsupported;
}
} else {
goto notsupported;
}
} else {
if (bmpImage->green_mask==0x03e0 &&
(bmpImage->red_mask==0x7f00 ||
bmpImage->blue_mask==0x7f00)) {
/* ==== any 0888 dib -> rgb or bgr 555 bmp ==== */
convs->Convert_any0888_to_5x5
(width,lines,
srcbits,linebytes,
rSrc,gSrc,bSrc,
dstbits,-bmpImage->bytes_per_line,
bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask);
} else if (bmpImage->green_mask==0x07e0 &&
(bmpImage->red_mask==0xf800 ||
bmpImage->blue_mask==0xf800)) {
/* ==== any 0888 dib -> rgb or bgr 565 bmp ==== */
convs->Convert_any0888_to_5x5
(width,lines,
srcbits,linebytes,
rSrc,gSrc,bSrc,
dstbits,-bmpImage->bytes_per_line,
bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask);
} else {
goto notsupported;
}
}
}
break;
default:
notsupported:
WARN("from 32 bit DIB (%x,%x,%x) to unknown %d bit bitmap (%lx,%lx,%lx)\n",
rSrc, gSrc, bSrc, bmpImage->bits_per_pixel, bmpImage->red_mask,
bmpImage->green_mask, bmpImage->blue_mask );
/* fall through */
case 1:
case 4:
case 8:
{
/* ==== any 0888 dib -> pal 1, 4 or 8 bmp ==== */
const DWORD* srcpixel;
int rShift,gShift,bShift;
rShift=X11DRV_DIB_MaskToShift(rSrc);
gShift=X11DRV_DIB_MaskToShift(gSrc);
bShift=X11DRV_DIB_MaskToShift(bSrc);
srcbits+=left*4;
for (h = lines - 1; h >= 0; h--) {
srcpixel=(const DWORD*)srcbits;
for (x = left; x < width+left; x++) {
DWORD srcvalue;
BYTE red,green,blue;
srcvalue=*srcpixel++;
red= (srcvalue >> rShift) & 0xff;
green=(srcvalue >> gShift) & 0xff;
blue= (srcvalue >> bShift) & 0xff;
XPutPixel(bmpImage, x, h, X11DRV_PALETTE_ToPhysical
(physDev, RGB(red,green,blue)));
}
srcbits += linebytes;
}
}
break;
}
}
/***********************************************************************
* X11DRV_DIB_GetImageBits_32
*
* GetDIBits for an 32-bit deep DIB.
*/
static void X11DRV_DIB_GetImageBits_32( int lines, BYTE *dstbits,
DWORD dstwidth, DWORD srcwidth,
PALETTEENTRY *srccolors,
DWORD rDst, DWORD gDst, DWORD bDst,
XImage *bmpImage, int linebytes )
{
DWORD x;
int h, width = min(srcwidth, dstwidth);
BYTE *bits;
const dib_conversions *convs = (bmpImage->byte_order == LSBFirst) ? &dib_normal : &dib_src_byteswap;
if (lines < 0 )
{
lines = -lines;
dstbits = dstbits + ( linebytes * (lines-1) );
linebytes = -linebytes;
}
bits = dstbits;
switch (bmpImage->depth)
{
case 24:
if (bmpImage->bits_per_pixel==24) {
const void* srcbits;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
if (rDst==bmpImage->red_mask && gDst==bmpImage->green_mask && bDst==bmpImage->blue_mask) {
/* ==== rgb 888 bmp -> rgb 0888 dib ==== */
/* ==== bgr 888 bmp -> bgr 0888 dib ==== */
convs->Convert_888_to_0888_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
/* the tests below assume sane bmpImage masks */
} else if (rDst==bmpImage->blue_mask && gDst==bmpImage->green_mask && bDst==bmpImage->red_mask) {
/* ==== rgb 888 bmp -> bgr 0888 dib ==== */
/* ==== bgr 888 bmp -> rgb 0888 dib ==== */
convs->Convert_888_to_0888_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else if (bmpImage->blue_mask==0xff) {
/* ==== rgb 888 bmp -> any 0888 dib ==== */
convs->Convert_rgb888_to_any0888
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes,
rDst,gDst,bDst);
} else {
/* ==== bgr 888 bmp -> any 0888 dib ==== */
convs->Convert_bgr888_to_any0888
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes,
rDst,gDst,bDst);
}
break;
}
/* fall through */
case 32:
{
const char* srcbits;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
if (gDst==bmpImage->green_mask) {
if (rDst==bmpImage->red_mask && bDst==bmpImage->blue_mask) {
/* ==== rgb 0888 bmp -> rgb 0888 dib ==== */
/* ==== bgr 0888 bmp -> bgr 0888 dib ==== */
convs->Convert_0888_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
/* the tests below assume sane bmpImage masks */
} else if (rDst==bmpImage->blue_mask && bDst==bmpImage->red_mask) {
/* ==== rgb 0888 bmp -> bgr 0888 dib ==== */
/* ==== bgr 0888 bmp -> rgb 0888 dib ==== */
convs->Convert_0888_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
/* ==== any 0888 bmp -> any 0888 dib ==== */
convs->Convert_0888_any
(width,lines,
srcbits,-bmpImage->bytes_per_line,
bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask,
dstbits,linebytes,
rDst,gDst,bDst);
}
} else if (bmpImage->green_mask!=0x00ff00 ||
(bmpImage->red_mask|bmpImage->blue_mask)!=0xff00ff) {
goto notsupported;
/* the tests below assume sane bmpImage masks */
} else {
/* ==== any 0888 bmp -> any 0888 dib ==== */
convs->Convert_0888_any
(width,lines,
srcbits,-bmpImage->bytes_per_line,
bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask,
dstbits,linebytes,
rDst,gDst,bDst);
}
}
break;
case 15:
case 16:
{
const char* srcbits;
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
if (rDst==0xff0000 && gDst==0x00ff00 && bDst==0x0000ff) {
if (bmpImage->green_mask==0x03e0) {
if (bmpImage->red_mask==0x7f00) {
/* ==== rgb 555 bmp -> rgb 0888 dib ==== */
convs->Convert_555_to_0888_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else if (bmpImage->blue_mask==0x7f00) {
/* ==== bgr 555 bmp -> rgb 0888 dib ==== */
convs->Convert_555_to_0888_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
goto notsupported;
}
} else if (bmpImage->green_mask==0x07e0) {
if (bmpImage->red_mask==0xf800) {
/* ==== rgb 565 bmp -> rgb 0888 dib ==== */
convs->Convert_565_to_0888_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else if (bmpImage->blue_mask==0xf800) {
/* ==== bgr 565 bmp -> rgb 0888 dib ==== */
convs->Convert_565_to_0888_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
goto notsupported;
}
} else {
goto notsupported;
}
} else if (rDst==0x0000ff && gDst==0x00ff00 && bDst==0xff0000) {
if (bmpImage->green_mask==0x03e0) {
if (bmpImage->blue_mask==0x7f00) {
/* ==== bgr 555 bmp -> bgr 0888 dib ==== */
convs->Convert_555_to_0888_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else if (bmpImage->red_mask==0x7f00) {
/* ==== rgb 555 bmp -> bgr 0888 dib ==== */
convs->Convert_555_to_0888_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
goto notsupported;
}
} else if (bmpImage->green_mask==0x07e0) {
if (bmpImage->blue_mask==0xf800) {
/* ==== bgr 565 bmp -> bgr 0888 dib ==== */
convs->Convert_565_to_0888_asis
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else if (bmpImage->red_mask==0xf800) {
/* ==== rgb 565 bmp -> bgr 0888 dib ==== */
convs->Convert_565_to_0888_reverse
(width,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
goto notsupported;
}
} else {
goto notsupported;
}
} else {
if (bmpImage->green_mask==0x03e0 &&
(bmpImage->red_mask==0x7f00 ||
bmpImage->blue_mask==0x7f00)) {
/* ==== rgb or bgr 555 bmp -> any 0888 dib ==== */
convs->Convert_5x5_to_any0888
(width,lines,
srcbits,-bmpImage->bytes_per_line,
bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask,
dstbits,linebytes,
rDst,gDst,bDst);
} else if (bmpImage->green_mask==0x07e0 &&
(bmpImage->red_mask==0xf800 ||
bmpImage->blue_mask==0xf800)) {
/* ==== rgb or bgr 565 bmp -> any 0888 dib ==== */
convs->Convert_5x5_to_any0888
(width,lines,
srcbits,-bmpImage->bytes_per_line,
bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask,
dstbits,linebytes,
rDst,gDst,bDst);
} else {
goto notsupported;
}
}
}
break;
case 1:
case 4:
if (X11DRV_DIB_CheckMask(bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask)
&& srccolors) {
/* ==== pal 1 or 4 bmp -> any 0888 dib ==== */
int rShift,gShift,bShift;
DWORD* dstpixel;
rShift=X11DRV_DIB_MaskToShift(rDst);
gShift=X11DRV_DIB_MaskToShift(gDst);
bShift=X11DRV_DIB_MaskToShift(bDst);
for (h = lines - 1; h >= 0; h--) {
dstpixel=(DWORD*)dstbits;
for (x = 0; x < width; x++) {
PALETTEENTRY srcval;
srcval = srccolors[XGetPixel(bmpImage, x, h)];
*dstpixel++=(srcval.peRed << rShift) |
(srcval.peGreen << gShift) |
(srcval.peBlue << bShift);
}
dstbits += linebytes;
}
} else {
goto notsupported;
}
break;
case 8:
if (X11DRV_DIB_CheckMask(bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask)
&& srccolors) {
/* ==== pal 8 bmp -> any 0888 dib ==== */
int rShift,gShift,bShift;
const void* srcbits;
const BYTE* srcpixel;
DWORD* dstpixel;
rShift=X11DRV_DIB_MaskToShift(rDst);
gShift=X11DRV_DIB_MaskToShift(gDst);
bShift=X11DRV_DIB_MaskToShift(bDst);
srcbits=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
for (h = lines - 1; h >= 0; h--) {
srcpixel=srcbits;
dstpixel=(DWORD*)dstbits;
for (x = 0; x < width; x++) {
PALETTEENTRY srcval;
srcval=srccolors[*srcpixel++];
*dstpixel++=(srcval.peRed << rShift) |
(srcval.peGreen << gShift) |
(srcval.peBlue << bShift);
}
srcbits = (const char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
} else {
goto notsupported;
}
break;
default:
notsupported:
{
/* ==== any bmp format -> any 0888 dib ==== */
int rShift,gShift,bShift;
DWORD* dstpixel;
WARN("from unknown %d bit bitmap (%lx,%lx,%lx) to 32 bit DIB (%x,%x,%x)\n",
bmpImage->depth, bmpImage->red_mask,
bmpImage->green_mask, bmpImage->blue_mask,
rDst,gDst,bDst);
rShift=X11DRV_DIB_MaskToShift(rDst);
gShift=X11DRV_DIB_MaskToShift(gDst);
bShift=X11DRV_DIB_MaskToShift(bDst);
for (h = lines - 1; h >= 0; h--) {
dstpixel=(DWORD*)dstbits;
for (x = 0; x < width; x++) {
COLORREF srcval;
srcval=X11DRV_PALETTE_ToLogical(XGetPixel(bmpImage, x, h));
*dstpixel++=(GetRValue(srcval) << rShift) |
(GetGValue(srcval) << gShift) |
(GetBValue(srcval) << bShift);
}
dstbits += linebytes;
}
}
break;
}
}
static int XGetSubImageErrorHandler(Display *dpy, XErrorEvent *event, void *arg)
{
return (event->request_code == X_GetImage && event->error_code == BadMatch);
}
/***********************************************************************
* X11DRV_DIB_SetImageBits_GetSubImage
*
* Helper for X11DRV_DIB_SetImageBits
*/
static void X11DRV_DIB_SetImageBits_GetSubImage(
const X11DRV_DIB_IMAGEBITS_DESCR *descr, XImage *bmpImage)
{
/* compressed bitmaps may contain gaps in them. So make a copy
* of the existing pixels first */
RECT bmprc, rc;
SetRect( &bmprc, descr->xDest, descr->yDest,
descr->xDest + descr->width , descr->yDest + descr->height );
GetRgnBox( descr->physDev->region, &rc );
/* convert from dc to drawable origin */
OffsetRect( &rc, descr->physDev->dc_rect.left, descr->physDev->dc_rect.top);
/* clip visible rect with bitmap */
if( IntersectRect( &rc, &rc, &bmprc))
{
X11DRV_expect_error( gdi_display, XGetSubImageErrorHandler, NULL );
XGetSubImage( gdi_display, descr->drawable, rc.left, rc.top,
rc.right - rc.left, rc.bottom - rc.top, AllPlanes,
ZPixmap, bmpImage,
descr->xSrc + rc.left - bmprc.left,
descr->ySrc + rc.top - bmprc.top);
X11DRV_check_error();
}
}
/***********************************************************************
* X11DRV_DIB_SetImageBits
*
* Transfer the bits to an X image.
* Helper function for SetDIBits() and SetDIBitsToDevice().
*/
static int X11DRV_DIB_SetImageBits( const X11DRV_DIB_IMAGEBITS_DESCR *descr )
{
int lines = descr->lines >= 0 ? descr->lines : -descr->lines;
void *old_data = NULL;
XImage *bmpImage;
wine_tsx11_lock();
if (descr->image)
bmpImage = descr->image;
else {
bmpImage = XCreateImage( gdi_display, visual, descr->depth, ZPixmap, 0, NULL,
descr->infoWidth, lines, 32, 0 );
bmpImage->data = HeapAlloc( GetProcessHeap(), 0, lines * bmpImage->bytes_per_line );
if(bmpImage->data == NULL) {
ERR("Out of memory!\n");
XDestroyImage( bmpImage );
wine_tsx11_unlock();
return 0;
}
}
wine_tsx11_unlock();
TRACE("Dib: depth=%d r=%x g=%x b=%x\n",
descr->infoBpp,descr->rMask,descr->gMask,descr->bMask);
TRACE("Bmp: depth=%d/%d r=%lx g=%lx b=%lx\n",
bmpImage->depth,bmpImage->bits_per_pixel,
bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask);
#ifdef HAVE_LIBXXSHM
if (descr->shm_mode == X11DRV_SHM_PIXMAP
&& descr->xSrc == 0 && descr->ySrc == 0
&& descr->xDest == 0 && descr->yDest == 0)
{
TRACE("Using the shared pixmap data.\n");
wine_tsx11_lock();
XSync( gdi_display, False );
wine_tsx11_unlock();
old_data = descr->image->data;
descr->image->data = descr->physBitmap->shminfo.shmaddr;
}
#endif
/* Transfer the pixels */
__TRY
{
switch(descr->infoBpp)
{
case 1:
X11DRV_DIB_SetImageBits_1( descr->lines, descr->bits, descr->infoWidth,
descr->width, descr->xSrc, (int *)(descr->colorMap),
bmpImage, descr->dibpitch );
break;
case 4:
if (descr->compression) {
X11DRV_DIB_SetImageBits_GetSubImage( descr, bmpImage);
X11DRV_DIB_SetImageBits_RLE4( descr->lines, descr->bits,
descr->infoWidth, descr->width,
descr->xSrc, (int *)(descr->colorMap),
bmpImage );
} else
X11DRV_DIB_SetImageBits_4( descr->lines, descr->bits,
descr->infoWidth, descr->width,
descr->xSrc, (int*)(descr->colorMap),
bmpImage, descr->dibpitch );
break;
case 8:
if (descr->compression) {
X11DRV_DIB_SetImageBits_GetSubImage( descr, bmpImage);
X11DRV_DIB_SetImageBits_RLE8( descr->lines, descr->bits,
descr->infoWidth, descr->width,
descr->xSrc, (int *)(descr->colorMap),
bmpImage );
} else
X11DRV_DIB_SetImageBits_8( descr->lines, descr->bits,
descr->infoWidth, descr->width,
descr->xSrc, (int *)(descr->colorMap),
bmpImage, descr->dibpitch );
break;
case 15:
case 16:
X11DRV_DIB_SetImageBits_16( descr->lines, descr->bits,
descr->infoWidth, descr->width,
descr->xSrc, descr->physDev,
descr->rMask, descr->gMask, descr->bMask,
bmpImage, descr->dibpitch);
break;
case 24:
X11DRV_DIB_SetImageBits_24( descr->lines, descr->bits,
descr->infoWidth, descr->width,
descr->xSrc, descr->physDev,
descr->rMask, descr->gMask, descr->bMask,
bmpImage, descr->dibpitch);
break;
case 32:
X11DRV_DIB_SetImageBits_32( descr->lines, descr->bits,
descr->infoWidth, descr->width,
descr->xSrc, descr->physDev,
descr->rMask, descr->gMask, descr->bMask,
bmpImage, descr->dibpitch);
break;
default:
WARN("(%d): Invalid depth\n", descr->infoBpp );
break;
}
}
__EXCEPT_PAGE_FAULT
{
WARN( "invalid bits pointer %p\n", descr->bits );
lines = 0;
}
__ENDTRY
TRACE("XPutImage(%ld,%p,%p,%d,%d,%d,%d,%d,%d)\n",
descr->drawable, descr->gc, bmpImage,
descr->xSrc, descr->ySrc, descr->xDest, descr->yDest,
descr->width, descr->height);
wine_tsx11_lock();
if (lines)
{
#ifdef HAVE_LIBXXSHM
if (descr->shm_mode == X11DRV_SHM_PIXMAP
&& descr->xSrc == 0 && descr->ySrc == 0
&& descr->xDest == 0 && descr->yDest == 0)
{
XSync( gdi_display, False );
}
else if (descr->shm_mode == X11DRV_SHM_IMAGE && descr->image)
{
XShmPutImage( gdi_display, descr->drawable, descr->gc, bmpImage,
descr->xSrc, descr->ySrc, descr->xDest, descr->yDest,
descr->width, descr->height, FALSE );
XSync( gdi_display, 0 );
}
else
#endif
{
XPutImage( gdi_display, descr->drawable, descr->gc, bmpImage,
descr->xSrc, descr->ySrc, descr->xDest, descr->yDest,
descr->width, descr->height );
}
}
if (old_data) descr->image->data = old_data;
if (!descr->image) X11DRV_DIB_DestroyXImage( bmpImage );
wine_tsx11_unlock();
return lines;
}
/***********************************************************************
* X11DRV_DIB_GetImageBits
*
* Transfer the bits from an X image.
*/
static int X11DRV_DIB_GetImageBits( const X11DRV_DIB_IMAGEBITS_DESCR *descr )
{
int lines = descr->lines >= 0 ? descr->lines : -descr->lines;
void *old_data = NULL;
XImage *bmpImage;
wine_tsx11_lock();
if (descr->image)
bmpImage = descr->image;
else {
bmpImage = XCreateImage( gdi_display, visual, descr->depth, ZPixmap, 0, NULL,
descr->infoWidth, lines, 32, 0 );
bmpImage->data = HeapAlloc( GetProcessHeap(), 0, lines * bmpImage->bytes_per_line );
if(bmpImage->data == NULL) {
ERR("Out of memory!\n");
XDestroyImage( bmpImage );
wine_tsx11_unlock();
return 0;
}
}
#ifdef HAVE_LIBXXSHM
/* We must not call XShmGetImage() with a bitmap which is bigger than the available area.
If we do, XShmGetImage() will fail (X exception), as it checks for this internally. */
if (descr->shm_mode == X11DRV_SHM_PIXMAP && descr->image
&& descr->xSrc == 0 && descr->ySrc == 0
&& descr->xDest == 0 && descr->yDest == 0
&& bmpImage->width <= (descr->width - descr->xSrc)
&& bmpImage->height <= (descr->height - descr->ySrc))
{
XSync( gdi_display, False );
old_data = bmpImage->data;
bmpImage->data = descr->physBitmap->shminfo.shmaddr;
TRACE("Using shared pixmap data.\n");
}
else if (descr->shm_mode == X11DRV_SHM_IMAGE && descr->image
&& bmpImage->width <= (descr->width - descr->xSrc)
&& bmpImage->height <= (descr->height - descr->ySrc))
{
int saveRed, saveGreen, saveBlue;
TRACE("XShmGetImage(%p, %ld, %p, %d, %d, %ld)\n",
gdi_display, descr->drawable, bmpImage,
descr->xSrc, descr->ySrc, AllPlanes);
/* We must save and restore the bmpImage's masks in order
* to preserve them across the call to XShmGetImage, which
* decides to eliminate them since it doesn't happen to know
* what the format of the image is supposed to be, even though
* we do. */
saveRed = bmpImage->red_mask;
saveBlue= bmpImage->blue_mask;
saveGreen = bmpImage->green_mask;
XShmGetImage( gdi_display, descr->drawable, bmpImage,
descr->xSrc, descr->ySrc, AllPlanes);
bmpImage->red_mask = saveRed;
bmpImage->blue_mask = saveBlue;
bmpImage->green_mask = saveGreen;
}
else
#endif /* HAVE_LIBXXSHM */
{
TRACE("XGetSubImage(%p,%ld,%d,%d,%d,%d,%ld,%d,%p,%d,%d)\n",
gdi_display, descr->drawable, descr->xSrc, descr->ySrc, descr->width,
lines, AllPlanes, ZPixmap, bmpImage, descr->xDest, descr->yDest);
XGetSubImage( gdi_display, descr->drawable, descr->xSrc, descr->ySrc,
descr->width, lines, AllPlanes, ZPixmap,
bmpImage, descr->xDest, descr->yDest );
}
wine_tsx11_unlock();
TRACE("Dib: depth=%2d r=%x g=%x b=%x\n",
descr->infoBpp,descr->rMask,descr->gMask,descr->bMask);
TRACE("Bmp: depth=%2d/%2d r=%lx g=%lx b=%lx\n",
bmpImage->depth,bmpImage->bits_per_pixel,
bmpImage->red_mask,bmpImage->green_mask,bmpImage->blue_mask);
/* Transfer the pixels */
switch(descr->infoBpp)
{
case 1:
X11DRV_DIB_GetImageBits_1( descr->lines,(LPVOID)descr->bits,
descr->infoWidth, descr->width,
descr->colorMap, descr->palentry,
bmpImage, descr->dibpitch );
break;
case 4:
if (descr->compression) {
FIXME("Compression not yet supported!\n");
if(descr->sizeImage < X11DRV_DIB_GetDIBWidthBytes( descr->infoWidth, 4 ) * abs(descr->lines))
break;
}
X11DRV_DIB_GetImageBits_4( descr->lines,(LPVOID)descr->bits,
descr->infoWidth, descr->width,
descr->colorMap, descr->palentry,
bmpImage, descr->dibpitch );
break;
case 8:
if (descr->compression) {
FIXME("Compression not yet supported!\n");
if(descr->sizeImage < X11DRV_DIB_GetDIBWidthBytes( descr->infoWidth, 8 ) * abs(descr->lines))
break;
}
X11DRV_DIB_GetImageBits_8( descr->lines, (LPVOID)descr->bits,
descr->infoWidth, descr->width,
descr->colorMap, descr->palentry,
bmpImage, descr->dibpitch );
break;
case 15:
case 16:
X11DRV_DIB_GetImageBits_16( descr->lines, (LPVOID)descr->bits,
descr->infoWidth,descr->width,
descr->palentry,
descr->rMask, descr->gMask, descr->bMask,
bmpImage, descr->dibpitch );
break;
case 24:
X11DRV_DIB_GetImageBits_24( descr->lines, (LPVOID)descr->bits,
descr->infoWidth,descr->width,
descr->palentry,
descr->rMask, descr->gMask, descr->bMask,
bmpImage, descr->dibpitch);
break;
case 32:
X11DRV_DIB_GetImageBits_32( descr->lines, (LPVOID)descr->bits,
descr->infoWidth, descr->width,
descr->palentry,
descr->rMask, descr->gMask, descr->bMask,
bmpImage, descr->dibpitch);
break;
default:
WARN("(%d): Invalid depth\n", descr->infoBpp );
break;
}
if (old_data) bmpImage->data = old_data;
if (!descr->image) X11DRV_DIB_DestroyXImage( bmpImage );
return lines;
}
/*************************************************************************
* X11DRV_SetDIBitsToDevice
*
*/
INT CDECL X11DRV_SetDIBitsToDevice( X11DRV_PDEVICE *physDev, INT xDest, INT yDest, DWORD cx,
DWORD cy, INT xSrc, INT ySrc,
UINT startscan, UINT lines, LPCVOID bits,
const BITMAPINFO *info, UINT coloruse )
{
X11DRV_DIB_IMAGEBITS_DESCR descr;
INT result;
LONG width, height;
BOOL top_down;
POINT pt;
int rop = X11DRV_XROPfunction[GetROP2(physDev->hdc) - 1];
if (DIB_GetBitmapInfo( &info->bmiHeader, &width, &height,
&descr.infoBpp, &descr.compression ) == -1)
return 0;
top_down = (height < 0);
if (top_down) height = -height;
pt.x = xDest;
pt.y = yDest;
LPtoDP(physDev->hdc, &pt, 1);
if (!lines || (startscan >= height)) return 0;
if (!top_down && startscan + lines > height) lines = height - startscan;
/* make xSrc,ySrc point to the upper-left corner, not the lower-left one,
* and clamp all values to fit inside [startscan,startscan+lines]
*/
if (ySrc + cy <= startscan + lines)
{
UINT y = startscan + lines - (ySrc + cy);
if (ySrc < startscan) cy -= (startscan - ySrc);
if (!top_down)
{
/* avoid getting unnecessary lines */
ySrc = 0;
if (y >= lines) return 0;
lines -= y;
}
else
{
if (y >= lines) return lines;
ySrc = y; /* need to get all lines in top down mode */
}
}
else
{
if (ySrc >= startscan + lines) return lines;
pt.y += ySrc + cy - (startscan + lines);
cy = startscan + lines - ySrc;
ySrc = 0;
if (cy > lines) cy = lines;
}
if (xSrc >= width) return lines;
if (xSrc + cx >= width) cx = width - xSrc;
if (!cx || !cy) return lines;
/* Update the pixmap from the DIB section */
X11DRV_LockDIBSection(physDev, DIB_Status_GdiMod);
X11DRV_SetupGCForText( physDev ); /* To have the correct colors */
wine_tsx11_lock();
XSetFunction(gdi_display, physDev->gc, rop);
wine_tsx11_unlock();
switch (descr.infoBpp)
{
case 1:
case 4:
case 8:
descr.colorMap = (RGBQUAD *)X11DRV_DIB_BuildColorMap(
physDev, coloruse,
physDev->depth, info, &descr.nColorMap );
if (!descr.colorMap) return 0;
descr.rMask = descr.gMask = descr.bMask = 0;
break;
case 15:
case 16:
descr.rMask = (descr.compression == BI_BITFIELDS) ? *(const DWORD *)info->bmiColors : 0x7c00;
descr.gMask = (descr.compression == BI_BITFIELDS) ? *((const DWORD *)info->bmiColors + 1) : 0x03e0;
descr.bMask = (descr.compression == BI_BITFIELDS) ? *((const DWORD *)info->bmiColors + 2) : 0x001f;
descr.colorMap = 0;
break;
case 24:
case 32:
descr.rMask = (descr.compression == BI_BITFIELDS) ? *(const DWORD *)info->bmiColors : 0xff0000;
descr.gMask = (descr.compression == BI_BITFIELDS) ? *((const DWORD *)info->bmiColors + 1) : 0x00ff00;
descr.bMask = (descr.compression == BI_BITFIELDS) ? *((const DWORD *)info->bmiColors + 2) : 0x0000ff;
descr.colorMap = 0;
break;
}
descr.physDev = physDev;
descr.bits = bits;
descr.image = NULL;
descr.palentry = NULL;
descr.lines = top_down ? -lines : lines;
descr.infoWidth = width;
descr.depth = physDev->depth;
descr.drawable = physDev->drawable;
descr.gc = physDev->gc;
descr.xSrc = xSrc;
descr.ySrc = ySrc;
descr.xDest = physDev->dc_rect.left + pt.x;
descr.yDest = physDev->dc_rect.top + pt.y;
descr.width = cx;
descr.height = cy;
descr.shm_mode = X11DRV_SHM_NONE;
descr.dibpitch = ((width * descr.infoBpp + 31) &~31) / 8;
descr.physBitmap = NULL;
result = X11DRV_DIB_SetImageBits( &descr );
if (descr.infoBpp <= 8)
HeapFree(GetProcessHeap(), 0, descr.colorMap);
/* Update the DIBSection of the pixmap */
X11DRV_UnlockDIBSection(physDev, TRUE);
return result;
}
/***********************************************************************
* SetDIBits (X11DRV.@)
*/
INT CDECL X11DRV_SetDIBits( X11DRV_PDEVICE *physDev, HBITMAP hbitmap, UINT startscan,
UINT lines, LPCVOID bits, const BITMAPINFO *info, UINT coloruse )
{
X_PHYSBITMAP *physBitmap = X11DRV_get_phys_bitmap( hbitmap );
X11DRV_DIB_IMAGEBITS_DESCR descr;
DIBSECTION ds;
LONG width, height, tmpheight;
INT result;
descr.physDev = physDev;
if (!physBitmap) return 0;
if (DIB_GetBitmapInfo( &info->bmiHeader, &width, &height,
&descr.infoBpp, &descr.compression ) == -1)
return 0;
tmpheight = height;
if (height < 0) height = -height;
if (!lines || (startscan >= height))
return 0;
if (!GetObjectW( hbitmap, sizeof(ds), &ds )) return 0;
if (startscan + lines > height) lines = height - startscan;
switch (descr.infoBpp)
{
case 1:
case 4:
case 8:
descr.colorMap = (RGBQUAD *)X11DRV_DIB_BuildColorMap(
descr.physDev, coloruse,
physBitmap->pixmap_depth,
info, &descr.nColorMap );
if (!descr.colorMap) return 0;
descr.rMask = descr.gMask = descr.bMask = 0;
break;
case 15:
case 16:
descr.rMask = (descr.compression == BI_BITFIELDS) ? *(const DWORD *)info->bmiColors : 0x7c00;
descr.gMask = (descr.compression == BI_BITFIELDS) ? *((const DWORD *)info->bmiColors + 1) : 0x03e0;
descr.bMask = (descr.compression == BI_BITFIELDS) ? *((const DWORD *)info->bmiColors + 2) : 0x001f;
descr.colorMap = 0;
break;
case 24:
case 32:
descr.rMask = (descr.compression == BI_BITFIELDS) ? *(const DWORD *)info->bmiColors : 0xff0000;
descr.gMask = (descr.compression == BI_BITFIELDS) ? *((const DWORD *)info->bmiColors + 1) : 0x00ff00;
descr.bMask = (descr.compression == BI_BITFIELDS) ? *((const DWORD *)info->bmiColors + 2) : 0x0000ff;
descr.colorMap = 0;
break;
default: break;
}
descr.bits = bits;
descr.image = NULL;
descr.palentry = NULL;
descr.infoWidth = width;
descr.lines = tmpheight >= 0 ? lines : -lines;
descr.depth = physBitmap->pixmap_depth;
descr.drawable = physBitmap->pixmap;
descr.gc = get_bitmap_gc(physBitmap->pixmap_depth);
descr.xSrc = 0;
descr.ySrc = 0;
descr.xDest = 0;
descr.yDest = height - startscan - lines;
descr.width = ds.dsBm.bmWidth;
descr.height = lines;
descr.shm_mode = X11DRV_SHM_NONE;
descr.dibpitch = ((descr.infoWidth * descr.infoBpp + 31) &~31) / 8;
descr.physBitmap = NULL;
X11DRV_DIB_Lock( physBitmap, DIB_Status_GdiMod );
result = X11DRV_DIB_SetImageBits( &descr );
/* optimisation for the case where the input bits are in exactly the same
* format as the internal representation and copying to the app bits is
* cheap - saves a round trip to the X server */
if (descr.compression == BI_RGB &&
coloruse == DIB_RGB_COLORS &&
descr.infoBpp == ds.dsBm.bmBitsPixel &&
physBitmap->base && physBitmap->size < 65536)
{
unsigned int srcwidthb = ds.dsBm.bmWidthBytes;
int dstwidthb = X11DRV_DIB_GetDIBWidthBytes( width, descr.infoBpp );
LPBYTE dbits = physBitmap->base, sbits = (LPBYTE)bits + (startscan * srcwidthb);
int widthb;
UINT y;
TRACE("syncing compatible set bits to app bits\n");
if ((tmpheight < 0) ^ (ds.dsBmih.biHeight < 0))
{
dbits += dstwidthb * (lines-1);
dstwidthb = -dstwidthb;
}
X11DRV_DIB_DoProtectDIBSection( physBitmap, PAGE_READWRITE );
widthb = min(srcwidthb, abs(dstwidthb));
for (y = 0; y < lines; y++, dbits += dstwidthb, sbits += srcwidthb)
memcpy(dbits, sbits, widthb);
X11DRV_DIB_DoProtectDIBSection( physBitmap, PAGE_READONLY );
physBitmap->status = DIB_Status_InSync;
}
X11DRV_DIB_Unlock( physBitmap, TRUE );
HeapFree(GetProcessHeap(), 0, descr.colorMap);
return result;
}
/***********************************************************************
* GetDIBits (X11DRV.@)
*/
INT CDECL X11DRV_GetDIBits( X11DRV_PDEVICE *physDev, HBITMAP hbitmap, UINT startscan, UINT lines,
LPVOID bits, BITMAPINFO *info, UINT coloruse )
{
X_PHYSBITMAP *physBitmap = X11DRV_get_phys_bitmap( hbitmap );
DIBSECTION dib;
X11DRV_DIB_IMAGEBITS_DESCR descr;
PALETTEENTRY palette[256];
size_t obj_size;
int height;
LONG width, tempHeight;
int bitmap_type;
BOOL core_header;
void* colorPtr;
static const PALETTEENTRY peBlack = {0,0,0,0};
static const PALETTEENTRY peWhite = {255,255,255,0};
if (!physBitmap) return 0;
if (!(obj_size = GetObjectW( hbitmap, sizeof(dib), &dib ))) return 0;
bitmap_type = DIB_GetBitmapInfo( (BITMAPINFOHEADER*)info, &width, &tempHeight, &descr.infoBpp, &descr.compression);
if (physBitmap->pixmap_depth > 1)
{
GetPaletteEntries( GetCurrentObject( physDev->hdc, OBJ_PAL ), 0, 256, palette );
}
else
{
palette[0] = peBlack;
palette[1] = peWhite;
}
if (bitmap_type == -1)
{
ERR("Invalid bitmap\n");
return 0;
}
descr.lines = tempHeight;
core_header = (bitmap_type == 0);
colorPtr = (LPBYTE) info + (WORD) info->bmiHeader.biSize;
TRACE("%u scanlines of (%i,%i) -> (%i,%i) starting from %u\n",
lines, dib.dsBm.bmWidth, dib.dsBm.bmHeight, width, descr.lines, startscan);
if( lines > dib.dsBm.bmHeight ) lines = dib.dsBm.bmHeight;
height = descr.lines;
if (height < 0) height = -height;
if( lines > height ) lines = height;
/* Top-down images have a negative biHeight, the scanlines of these images
* were inverted in X11DRV_DIB_GetImageBits_xx
* To prevent this we simply change the sign of lines
* (the number of scan lines to copy).
* Negative lines are correctly handled by X11DRV_DIB_GetImageBits_xx.
*/
if( descr.lines < 0 && lines > 0) lines = -lines;
if( startscan >= dib.dsBm.bmHeight ) return 0;
descr.colorMap = NULL;
switch (descr.infoBpp)
{
case 1:
case 4:
case 8:
descr.rMask= descr.gMask = descr.bMask = 0;
if(coloruse == DIB_RGB_COLORS)
descr.colorMap = colorPtr;
else {
int num_colors = 1 << descr.infoBpp, i;
RGBQUAD *rgb;
COLORREF colref;
WORD *index = colorPtr;
descr.colorMap = rgb = HeapAlloc(GetProcessHeap(), 0, num_colors * sizeof(RGBQUAD));
for(i = 0; i < num_colors; i++, rgb++, index++) {
colref = X11DRV_PALETTE_ToLogical(X11DRV_PALETTE_ToPhysical(physDev, PALETTEINDEX(*index)));
rgb->rgbRed = GetRValue(colref);
rgb->rgbGreen = GetGValue(colref);
rgb->rgbBlue = GetBValue(colref);
rgb->rgbReserved = 0;
}
}
break;
case 15:
case 16:
descr.rMask = (descr.compression == BI_BITFIELDS) ? *(const DWORD *)info->bmiColors : 0x7c00;
descr.gMask = (descr.compression == BI_BITFIELDS) ? *((const DWORD *)info->bmiColors + 1) : 0x03e0;
descr.bMask = (descr.compression == BI_BITFIELDS) ? *((const DWORD *)info->bmiColors + 2) : 0x001f;
break;
case 24:
case 32:
descr.rMask = (descr.compression == BI_BITFIELDS) ? *(const DWORD *)info->bmiColors : 0xff0000;
descr.gMask = (descr.compression == BI_BITFIELDS) ? *((const DWORD *)info->bmiColors + 1) : 0x00ff00;
descr.bMask = (descr.compression == BI_BITFIELDS) ? *((const DWORD *)info->bmiColors + 2) : 0x0000ff;
break;
}
descr.physDev = physDev;
descr.palentry = palette;
descr.bits = bits;
descr.image = physBitmap->image;
descr.infoWidth = width;
descr.lines = lines;
descr.depth = physBitmap->pixmap_depth;
descr.drawable = physBitmap->pixmap;
descr.gc = get_bitmap_gc(physBitmap->pixmap_depth);
descr.width = dib.dsBm.bmWidth;
descr.height = dib.dsBm.bmHeight;
descr.xDest = 0;
descr.yDest = 0;
descr.xSrc = 0;
descr.sizeImage = core_header ? 0 : info->bmiHeader.biSizeImage;
descr.physBitmap = physBitmap;
if (descr.lines > 0)
{
descr.ySrc = (descr.height-1) - (startscan + (lines-1));
}
else
{
descr.ySrc = startscan;
}
descr.shm_mode = physBitmap->shm_mode;
descr.dibpitch = (obj_size == sizeof(DIBSECTION)) ? dib.dsBm.bmWidthBytes
: (((descr.infoWidth * descr.infoBpp + 31) &~31) / 8);
X11DRV_DIB_Lock( physBitmap, DIB_Status_GdiMod );
X11DRV_DIB_GetImageBits( &descr );
X11DRV_DIB_Unlock( physBitmap, TRUE );
if(!core_header && info->bmiHeader.biSizeImage == 0) /* Fill in biSizeImage */
info->bmiHeader.biSizeImage = X11DRV_DIB_GetDIBImageBytes( descr.infoWidth,
descr.lines,
descr.infoBpp);
if (descr.compression == BI_BITFIELDS)
{
*(DWORD *)info->bmiColors = descr.rMask;
*((DWORD *)info->bmiColors + 1) = descr.gMask;
*((DWORD *)info->bmiColors + 2) = descr.bMask;
}
else if (!core_header)
{
/* if RLE or JPEG compression were supported,
* this line would be invalid. */
info->bmiHeader.biCompression = 0;
}
if(descr.colorMap != colorPtr)
HeapFree(GetProcessHeap(), 0, descr.colorMap);
return lines;
}
/***********************************************************************
* X11DRV_DIB_DoCopyDIBSection
*/
static void X11DRV_DIB_DoCopyDIBSection(X_PHYSBITMAP *physBitmap, BOOL toDIB,
void *colorMap, int nColorMap,
Drawable dest, GC gc,
DWORD xSrc, DWORD ySrc,
DWORD xDest, DWORD yDest,
DWORD width, DWORD height)
{
DIBSECTION dibSection;
X11DRV_DIB_IMAGEBITS_DESCR descr;
int identity[2] = {0,1};
if (!GetObjectW( physBitmap->hbitmap, sizeof(dibSection), &dibSection )) return;
descr.physDev = NULL;
descr.palentry = NULL;
descr.infoWidth = dibSection.dsBmih.biWidth;
descr.infoBpp = dibSection.dsBmih.biBitCount;
descr.lines = dibSection.dsBmih.biHeight;
descr.image = physBitmap->image;
descr.colorMap = colorMap;
descr.nColorMap = nColorMap;
descr.bits = dibSection.dsBm.bmBits;
descr.depth = physBitmap->pixmap_depth;
descr.compression = dibSection.dsBmih.biCompression;
descr.physBitmap = physBitmap;
if(descr.infoBpp == 1)
descr.colorMap = (void*)identity;
switch (descr.infoBpp)
{
case 1:
case 4:
case 8:
descr.rMask = descr.gMask = descr.bMask = 0;
break;
case 15:
case 16:
descr.rMask = (descr.compression == BI_BITFIELDS) ? dibSection.dsBitfields[0] : 0x7c00;
descr.gMask = (descr.compression == BI_BITFIELDS) ? dibSection.dsBitfields[1] : 0x03e0;
descr.bMask = (descr.compression == BI_BITFIELDS) ? dibSection.dsBitfields[2] : 0x001f;
break;
case 24:
case 32:
descr.rMask = (descr.compression == BI_BITFIELDS) ? dibSection.dsBitfields[0] : 0xff0000;
descr.gMask = (descr.compression == BI_BITFIELDS) ? dibSection.dsBitfields[1] : 0x00ff00;
descr.bMask = (descr.compression == BI_BITFIELDS) ? dibSection.dsBitfields[2] : 0x0000ff;
break;
}
/* Hack for now */
descr.drawable = dest;
descr.gc = gc;
descr.xSrc = xSrc;
descr.ySrc = ySrc;
descr.xDest = xDest;
descr.yDest = yDest;
descr.width = width;
descr.height = height;
descr.sizeImage = 0;
descr.shm_mode = physBitmap->shm_mode;
#ifdef HAVE_LIBXXSHM
if (physBitmap->shm_mode == X11DRV_SHM_PIXMAP && physBitmap->pixmap != dest)
{
descr.shm_mode = X11DRV_SHM_NONE;
}
#endif
descr.dibpitch = dibSection.dsBm.bmWidthBytes;
if (toDIB)
{
TRACE("Copying from Pixmap to DIB bits\n");
X11DRV_DIB_GetImageBits( &descr );
}
else
{
TRACE("Copying from DIB bits to Pixmap\n");
X11DRV_DIB_SetImageBits( &descr );
}
}
/***********************************************************************
* X11DRV_DIB_CopyDIBSection
*/
void X11DRV_DIB_CopyDIBSection(X11DRV_PDEVICE *physDevSrc, X11DRV_PDEVICE *physDevDst,
DWORD xSrc, DWORD ySrc, DWORD xDest, DWORD yDest,
DWORD width, DWORD height)
{
DIBSECTION dib;
X_PHYSBITMAP *physBitmap;
unsigned int nColorMap;
int* x11ColorMap;
int freeColorMap;
TRACE("(%p,%p,%d,%d,%d,%d,%d,%d)\n", physDevSrc->hdc, physDevDst->hdc,
xSrc, ySrc, xDest, yDest, width, height);
/* this function is meant as an optimization for BitBlt,
* not to be called otherwise */
physBitmap = physDevSrc->bitmap;
if (!physBitmap || GetObjectW( physBitmap->hbitmap, sizeof(dib), &dib ) != sizeof(dib))
{
ERR("called for non-DIBSection!?\n");
return;
}
/* while BitBlt should already have made sure we only get
* positive values, we should check for oversize values */
if ((xSrc < dib.dsBm.bmWidth) &&
(ySrc < dib.dsBm.bmHeight)) {
if (xSrc + width > dib.dsBm.bmWidth)
width = dib.dsBm.bmWidth - xSrc;
if (ySrc + height > dib.dsBm.bmHeight)
height = dib.dsBm.bmHeight - ySrc;
/* if the source bitmap is 8bpp or less, we're supposed to use the
* DC's palette for color conversion (not the DIB color table) */
if (dib.dsBm.bmBitsPixel <= 8) {
HPALETTE hPalette = GetCurrentObject( physDevSrc->hdc, OBJ_PAL );
if (!hPalette || (hPalette == GetStockObject(DEFAULT_PALETTE))) {
/* HACK: no palette has been set in the source DC,
* use the DIB colormap instead - this is necessary in some
* cases since we need to do depth conversion in some places
* where real Windows can just copy data straight over */
x11ColorMap = physBitmap->colorMap;
nColorMap = physBitmap->nColorMap;
freeColorMap = FALSE;
} else {
const BITMAPINFO* info = (BITMAPINFO*)&dib.dsBmih;
unsigned int i;
nColorMap = X11DRV_DIB_GetColorCount(info);
x11ColorMap = HeapAlloc(GetProcessHeap(), 0, nColorMap * sizeof(int));
for (i = 0; i < nColorMap; i++)
x11ColorMap[i] = X11DRV_PALETTE_ToPhysical(physDevSrc, PALETTEINDEX(i));
freeColorMap = TRUE;
}
}
else
{
nColorMap = 0;
x11ColorMap = NULL;
freeColorMap = FALSE;
}
/* perform the copy */
X11DRV_DIB_DoCopyDIBSection(physBitmap, FALSE, x11ColorMap, nColorMap,
physDevDst->drawable, physDevDst->gc, xSrc, ySrc,
physDevDst->dc_rect.left + xDest, physDevDst->dc_rect.top + yDest,
width, height);
/* free color mapping */
if (freeColorMap)
HeapFree(GetProcessHeap(), 0, x11ColorMap);
}
}
/***********************************************************************
* X11DRV_DIB_DoUpdateDIBSection
*/
static void X11DRV_DIB_DoUpdateDIBSection(X_PHYSBITMAP *physBitmap, BOOL toDIB)
{
BITMAP bitmap;
GetObjectW( physBitmap->hbitmap, sizeof(bitmap), &bitmap );
X11DRV_DIB_DoCopyDIBSection(physBitmap, toDIB,
physBitmap->colorMap, physBitmap->nColorMap,
physBitmap->pixmap, get_bitmap_gc(physBitmap->pixmap_depth),
0, 0, 0, 0, bitmap.bmWidth, bitmap.bmHeight);
}
/***********************************************************************
* X11DRV_DIB_FaultHandler
*/
static LONG CALLBACK X11DRV_DIB_FaultHandler( PEXCEPTION_POINTERS ep )
{
X_PHYSBITMAP *physBitmap = NULL;
BOOL found = FALSE;
BYTE *addr;
struct list *ptr;
const size_t pagemask = getpagesize() - 1;
if (ep->ExceptionRecord->ExceptionCode != EXCEPTION_ACCESS_VIOLATION)
return EXCEPTION_CONTINUE_SEARCH;
addr = (BYTE *)ep->ExceptionRecord->ExceptionInformation[1];
EnterCriticalSection(&dibs_cs);
LIST_FOR_EACH( ptr, &dibs_list )
{
physBitmap = LIST_ENTRY( ptr, X_PHYSBITMAP, entry );
if ((physBitmap->base <= addr) &&
(addr < physBitmap->base + ((physBitmap->size + pagemask) & ~pagemask)))
{
found = TRUE;
break;
}
}
LeaveCriticalSection(&dibs_cs);
if (!found) return EXCEPTION_CONTINUE_SEARCH;
if (addr >= physBitmap->base + physBitmap->size)
WARN( "%p: access to %p beyond the end of the DIB\n", physBitmap->hbitmap, addr );
X11DRV_DIB_Lock( physBitmap, DIB_Status_None );
if (ep->ExceptionRecord->ExceptionInformation[0] == EXCEPTION_WRITE_FAULT) {
/* the app tried to write the DIB bits */
X11DRV_DIB_Coerce( physBitmap, DIB_Status_AppMod);
} else {
/* the app tried to read the DIB bits */
X11DRV_DIB_Coerce( physBitmap, DIB_Status_InSync);
}
X11DRV_DIB_Unlock( physBitmap, TRUE );
return EXCEPTION_CONTINUE_EXECUTION;
}
/***********************************************************************
* X11DRV_DIB_Coerce
*/
static INT X11DRV_DIB_Coerce(X_PHYSBITMAP *physBitmap, INT req)
{
INT ret = DIB_Status_None;
if (!physBitmap->image) return ret; /* not a DIB section */
EnterCriticalSection(&physBitmap->lock);
ret = physBitmap->status;
switch (req) {
case DIB_Status_GdiMod:
/* GDI access - request to draw on pixmap */
switch (physBitmap->status)
{
default:
case DIB_Status_None:
physBitmap->p_status = DIB_Status_GdiMod;
X11DRV_DIB_DoUpdateDIBSection( physBitmap, FALSE );
break;
case DIB_Status_GdiMod:
TRACE("GdiMod requested in status GdiMod\n" );
physBitmap->p_status = DIB_Status_GdiMod;
break;
case DIB_Status_InSync:
TRACE("GdiMod requested in status InSync\n" );
X11DRV_DIB_DoProtectDIBSection( physBitmap, PAGE_NOACCESS );
physBitmap->status = DIB_Status_GdiMod;
physBitmap->p_status = DIB_Status_InSync;
break;
case DIB_Status_AppMod:
TRACE("GdiMod requested in status AppMod\n" );
/* make it readonly to avoid app changing data while we copy */
X11DRV_DIB_DoProtectDIBSection( physBitmap, PAGE_READONLY );
X11DRV_DIB_DoUpdateDIBSection( physBitmap, FALSE );
X11DRV_DIB_DoProtectDIBSection( physBitmap, PAGE_NOACCESS );
physBitmap->p_status = DIB_Status_AppMod;
physBitmap->status = DIB_Status_GdiMod;
break;
}
break;
case DIB_Status_InSync:
/* App access - request access to read DIB surface */
/* (typically called from signal handler) */
switch (physBitmap->status)
{
default:
case DIB_Status_None:
/* shouldn't happen from signal handler */
break;
case DIB_Status_GdiMod:
TRACE("InSync requested in status GdiMod\n" );
X11DRV_DIB_DoProtectDIBSection( physBitmap, PAGE_READWRITE );
X11DRV_DIB_DoUpdateDIBSection( physBitmap, TRUE );
X11DRV_DIB_DoProtectDIBSection( physBitmap, PAGE_READONLY );
physBitmap->status = DIB_Status_InSync;
break;
case DIB_Status_InSync:
TRACE("InSync requested in status InSync\n" );
/* shouldn't happen from signal handler */
break;
case DIB_Status_AppMod:
TRACE("InSync requested in status AppMod\n" );
/* no reason to do anything here, and this
* shouldn't happen from signal handler */
break;
}
break;
case DIB_Status_AppMod:
/* App access - request access to write DIB surface */
/* (typically called from signal handler) */
switch (physBitmap->status)
{
default:
case DIB_Status_None:
/* shouldn't happen from signal handler */
break;
case DIB_Status_GdiMod:
TRACE("AppMod requested in status GdiMod\n" );
X11DRV_DIB_DoProtectDIBSection( physBitmap, PAGE_READWRITE );
X11DRV_DIB_DoUpdateDIBSection( physBitmap, TRUE );
physBitmap->status = DIB_Status_AppMod;
break;
case DIB_Status_InSync:
TRACE("AppMod requested in status InSync\n" );
X11DRV_DIB_DoProtectDIBSection( physBitmap, PAGE_READWRITE );
physBitmap->status = DIB_Status_AppMod;
break;
case DIB_Status_AppMod:
TRACE("AppMod requested in status AppMod\n" );
/* shouldn't happen from signal handler */
break;
}
break;
/* it is up to the caller to do the copy/conversion, probably
* using the return value to decide where to copy from */
}
LeaveCriticalSection(&physBitmap->lock);
return ret;
}
/***********************************************************************
* X11DRV_DIB_Lock
*/
static INT X11DRV_DIB_Lock(X_PHYSBITMAP *physBitmap, INT req)
{
INT ret = DIB_Status_None;
if (!physBitmap->image) return ret; /* not a DIB section */
TRACE("Locking %p from thread %04x\n", physBitmap->hbitmap, GetCurrentThreadId());
EnterCriticalSection(&physBitmap->lock);
ret = physBitmap->status;
if (req != DIB_Status_None)
X11DRV_DIB_Coerce(physBitmap, req);
return ret;
}
/***********************************************************************
* X11DRV_DIB_Unlock
*/
static void X11DRV_DIB_Unlock(X_PHYSBITMAP *physBitmap, BOOL commit)
{
if (!physBitmap->image) return; /* not a DIB section */
switch (physBitmap->status)
{
default:
case DIB_Status_None:
/* in case anyone is wondering, this is the "signal handler doesn't
* work" case, where we always have to be ready for app access */
if (commit) {
switch (physBitmap->p_status)
{
case DIB_Status_GdiMod:
TRACE("Unlocking and syncing from GdiMod\n" );
X11DRV_DIB_DoUpdateDIBSection( physBitmap, TRUE );
break;
default:
TRACE("Unlocking without needing to sync\n" );
break;
}
}
else TRACE("Unlocking with no changes\n");
physBitmap->p_status = DIB_Status_None;
break;
case DIB_Status_GdiMod:
TRACE("Unlocking in status GdiMod\n" );
/* DIB was protected in Coerce */
if (!commit) {
/* no commit, revert to InSync if applicable */
if ((physBitmap->p_status == DIB_Status_InSync) ||
(physBitmap->p_status == DIB_Status_AppMod)) {
X11DRV_DIB_DoProtectDIBSection( physBitmap, PAGE_READONLY );
physBitmap->status = DIB_Status_InSync;
}
}
break;
case DIB_Status_InSync:
TRACE("Unlocking in status InSync\n" );
/* DIB was already protected in Coerce */
break;
case DIB_Status_AppMod:
TRACE("Unlocking in status AppMod\n" );
/* DIB was already protected in Coerce */
/* this case is ordinary only called from the signal handler,
* so we don't bother to check for !commit */
break;
}
LeaveCriticalSection(&physBitmap->lock);
TRACE("Unlocked %p\n", physBitmap->hbitmap);
}
/***********************************************************************
* X11DRV_CoerceDIBSection
*/
INT X11DRV_CoerceDIBSection(X11DRV_PDEVICE *physDev, INT req)
{
if (!physDev || !physDev->bitmap) return DIB_Status_None;
return X11DRV_DIB_Coerce(physDev->bitmap, req);
}
/***********************************************************************
* X11DRV_LockDIBSection
*/
INT X11DRV_LockDIBSection(X11DRV_PDEVICE *physDev, INT req)
{
if (!physDev || !physDev->bitmap) return DIB_Status_None;
return X11DRV_DIB_Lock(physDev->bitmap, req);
}
/***********************************************************************
* X11DRV_UnlockDIBSection
*/
void X11DRV_UnlockDIBSection(X11DRV_PDEVICE *physDev, BOOL commit)
{
if (!physDev || !physDev->bitmap) return;
X11DRV_DIB_Unlock(physDev->bitmap, commit);
}
#ifdef HAVE_LIBXXSHM
/***********************************************************************
* X11DRV_XShmErrorHandler
*
*/
static int XShmErrorHandler( Display *dpy, XErrorEvent *event, void *arg )
{
return 1; /* FIXME: should check event contents */
}
/***********************************************************************
* X11DRV_XShmCreateImage
*
*/
static XImage *X11DRV_XShmCreateImage( int width, int height, int bpp,
XShmSegmentInfo* shminfo)
{
XImage *image;
image = XShmCreateImage(gdi_display, visual, bpp, ZPixmap, NULL, shminfo, width, height);
if (image)
{
shminfo->shmid = shmget(IPC_PRIVATE, image->bytes_per_line * height,
IPC_CREAT|0700);
if( shminfo->shmid != -1 )
{
shminfo->shmaddr = shmat( shminfo->shmid, 0, 0 );
if( shminfo->shmaddr != (char*)-1 )
{
BOOL ok;
shminfo->readOnly = FALSE;
X11DRV_expect_error( gdi_display, XShmErrorHandler, NULL );
ok = (XShmAttach( gdi_display, shminfo ) != 0);
XSync( gdi_display, False );
if (X11DRV_check_error()) ok = FALSE;
if (ok)
{
shmctl(shminfo->shmid, IPC_RMID, 0);
return image; /* Success! */
}
/* An error occurred */
shmdt(shminfo->shmaddr);
}
shmctl(shminfo->shmid, IPC_RMID, 0);
shminfo->shmid = -1;
}
XFlush(gdi_display);
XDestroyImage(image);
image = NULL;
}
return image;
}
#endif /* HAVE_LIBXXSHM */
/***********************************************************************
* X11DRV_CreateDIBSection (X11DRV.@)
*/
HBITMAP CDECL X11DRV_CreateDIBSection( X11DRV_PDEVICE *physDev, HBITMAP hbitmap,
const BITMAPINFO *bmi, UINT usage )
{
X_PHYSBITMAP *physBitmap;
DIBSECTION dib;
#ifdef HAVE_LIBXXSHM
int major, minor;
Bool pixmaps;
#endif
if (!(physBitmap = X11DRV_init_phys_bitmap( hbitmap ))) return 0;
physBitmap->status = DIB_Status_None;
GetObjectW( hbitmap, sizeof(dib), &dib );
/* create color map */
if (dib.dsBm.bmBitsPixel <= 8)
{
physBitmap->colorMap = X11DRV_DIB_BuildColorMap( physDev,
usage, dib.dsBm.bmBitsPixel, bmi,
&physBitmap->nColorMap );
}
/* create pixmap and X image */
wine_tsx11_lock();
physBitmap->pixmap_depth = (dib.dsBm.bmBitsPixel == 1) ? 1 : screen_depth;
#ifdef HAVE_LIBXXSHM
physBitmap->shminfo.shmid = -1;
if (XShmQueryVersion( gdi_display, &major, &minor, &pixmaps )
&& (physBitmap->image = X11DRV_XShmCreateImage( dib.dsBm.bmWidth, dib.dsBm.bmHeight,
physBitmap->pixmap_depth, &physBitmap->shminfo )))
{
if (pixmaps)
{
physBitmap->shm_mode = X11DRV_SHM_PIXMAP;
physBitmap->image->data = HeapAlloc( GetProcessHeap(), 0,
dib.dsBm.bmHeight * physBitmap->image->bytes_per_line );
}
else
{
physBitmap->shm_mode = X11DRV_SHM_IMAGE;
physBitmap->image->data = physBitmap->shminfo.shmaddr;
}
}
else
#endif
{
physBitmap->shm_mode = X11DRV_SHM_NONE;
physBitmap->image = X11DRV_DIB_CreateXImage( dib.dsBm.bmWidth, dib.dsBm.bmHeight,
physBitmap->pixmap_depth );
}
#ifdef HAVE_LIBXXSHM
if (physBitmap->shm_mode == X11DRV_SHM_PIXMAP)
{
TRACE("Creating shared pixmap for bmp %p.\n", physBitmap->hbitmap);
physBitmap->pixmap = XShmCreatePixmap( gdi_display, root_window,
physBitmap->shminfo.shmaddr, &physBitmap->shminfo,
dib.dsBm.bmWidth, dib.dsBm.bmHeight,
physBitmap->pixmap_depth );
}
else
#endif
{
physBitmap->pixmap = XCreatePixmap( gdi_display, root_window, dib.dsBm.bmWidth,
dib.dsBm.bmHeight, physBitmap->pixmap_depth );
}
wine_tsx11_unlock();
if (!physBitmap->pixmap || !physBitmap->image) return 0;
/* install fault handler */
InitializeCriticalSection( &physBitmap->lock );
physBitmap->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": X_PHYSBITMAP.lock");
physBitmap->base = dib.dsBm.bmBits;
physBitmap->size = dib.dsBmih.biSizeImage;
physBitmap->status = DIB_Status_AppMod;
if (!dibs_handler)
dibs_handler = AddVectoredExceptionHandler( TRUE, X11DRV_DIB_FaultHandler );
EnterCriticalSection( &dibs_cs );
list_add_head( &dibs_list, &physBitmap->entry );
LeaveCriticalSection( &dibs_cs );
X11DRV_DIB_DoProtectDIBSection( physBitmap, PAGE_READWRITE );
return hbitmap;
}
/***********************************************************************
* X11DRV_DIB_DeleteDIBSection
*/
void X11DRV_DIB_DeleteDIBSection(X_PHYSBITMAP *physBitmap, DIBSECTION *dib)
{
BOOL last;
EnterCriticalSection( &dibs_cs );
list_remove( &physBitmap->entry );
last = list_empty( &dibs_list );
LeaveCriticalSection( &dibs_cs );
if (last)
{
RemoveVectoredExceptionHandler( dibs_handler );
dibs_handler = NULL;
}
if (dib->dshSection)
X11DRV_DIB_Coerce(physBitmap, DIB_Status_InSync);
if (physBitmap->image)
{
wine_tsx11_lock();
#ifdef HAVE_LIBXXSHM
if (physBitmap->shminfo.shmid != -1)
{
XShmDetach( gdi_display, &(physBitmap->shminfo) );
if (physBitmap->shm_mode == X11DRV_SHM_PIXMAP) X11DRV_DIB_DestroyXImage( physBitmap->image );
else XDestroyImage( physBitmap->image );
shmdt( physBitmap->shminfo.shmaddr );
physBitmap->shminfo.shmid = -1;
physBitmap->shm_mode = X11DRV_SHM_NONE;
}
else
#endif
X11DRV_DIB_DestroyXImage( physBitmap->image );
wine_tsx11_unlock();
}
HeapFree(GetProcessHeap(), 0, physBitmap->colorMap);
physBitmap->lock.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&physBitmap->lock);
}
/***********************************************************************
* SetDIBColorTable (X11DRV.@)
*/
UINT CDECL X11DRV_SetDIBColorTable( X11DRV_PDEVICE *physDev, UINT start, UINT count, const RGBQUAD *colors )
{
DIBSECTION dib;
UINT ret = 0;
X_PHYSBITMAP *physBitmap = physDev->bitmap;
if (!physBitmap) return 0;
GetObjectW( physBitmap->hbitmap, sizeof(dib), &dib );
if (physBitmap->colorMap && start < physBitmap->nColorMap) {
UINT end = count + start;
if (end > physBitmap->nColorMap) end = physBitmap->nColorMap;
/*
* Changing color table might change the mapping between
* DIB colors and X11 colors and thus alter the visible state
* of the bitmap object.
*/
/*
* FIXME we need to recalculate the pen, brush, text and bkgnd pixels here,
* at least for a 1 bpp dibsection
*/
X11DRV_DIB_Lock( physBitmap, DIB_Status_AppMod );
X11DRV_DIB_GenColorMap( physDev, physBitmap->colorMap, DIB_RGB_COLORS,
dib.dsBm.bmBitsPixel,
TRUE, colors, start, end );
X11DRV_DIB_Unlock( physBitmap, TRUE );
ret = end - start;
}
return ret;
}
/***********************************************************************
* X11DRV_DIB_CreateDIBFromBitmap
*
* Allocates a packed DIB and copies the bitmap data into it.
*/
HGLOBAL X11DRV_DIB_CreateDIBFromBitmap(HDC hdc, HBITMAP hBmp)
{
BITMAP bmp;
HGLOBAL hPackedDIB;
LPBYTE pPackedDIB;
LPBITMAPINFOHEADER pbmiHeader;
unsigned int cDataSize, cPackedSize, OffsetBits;
int nLinesCopied;
if (!GetObjectW( hBmp, sizeof(bmp), &bmp )) return 0;
/*
* A packed DIB contains a BITMAPINFO structure followed immediately by
* an optional color palette and the pixel data.
*/
/* Calculate the size of the packed DIB */
cDataSize = X11DRV_DIB_GetDIBWidthBytes( bmp.bmWidth, bmp.bmBitsPixel ) * abs( bmp.bmHeight );
cPackedSize = sizeof(BITMAPINFOHEADER)
+ ( (bmp.bmBitsPixel <= 8) ? (sizeof(RGBQUAD) * (1 << bmp.bmBitsPixel)) : 0 )
+ cDataSize;
/* Get the offset to the bits */
OffsetBits = cPackedSize - cDataSize;
/* Allocate the packed DIB */
TRACE("\tAllocating packed DIB of size %d\n", cPackedSize);
hPackedDIB = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE /*| GMEM_ZEROINIT*/,
cPackedSize );
if ( !hPackedDIB )
{
WARN("Could not allocate packed DIB!\n");
return 0;
}
/* A packed DIB starts with a BITMAPINFOHEADER */
pPackedDIB = GlobalLock(hPackedDIB);
pbmiHeader = (LPBITMAPINFOHEADER)pPackedDIB;
/* Init the BITMAPINFOHEADER */
pbmiHeader->biSize = sizeof(BITMAPINFOHEADER);
pbmiHeader->biWidth = bmp.bmWidth;
pbmiHeader->biHeight = bmp.bmHeight;
pbmiHeader->biPlanes = 1;
pbmiHeader->biBitCount = bmp.bmBitsPixel;
pbmiHeader->biCompression = BI_RGB;
pbmiHeader->biSizeImage = 0;
pbmiHeader->biXPelsPerMeter = pbmiHeader->biYPelsPerMeter = 0;
pbmiHeader->biClrUsed = 0;
pbmiHeader->biClrImportant = 0;
/* Retrieve the DIB bits from the bitmap and fill in the
* DIB color table if present */
nLinesCopied = GetDIBits(hdc, /* Handle to device context */
hBmp, /* Handle to bitmap */
0, /* First scan line to set in dest bitmap */
bmp.bmHeight, /* Number of scan lines to copy */
pPackedDIB + OffsetBits, /* [out] Address of array for bitmap bits */
(LPBITMAPINFO) pbmiHeader, /* [out] Address of BITMAPINFO structure */
0); /* RGB or palette index */
GlobalUnlock(hPackedDIB);
/* Cleanup if GetDIBits failed */
if (nLinesCopied != bmp.bmHeight)
{
TRACE("\tGetDIBits returned %d. Actual lines=%d\n", nLinesCopied, bmp.bmHeight);
GlobalFree(hPackedDIB);
hPackedDIB = 0;
}
return hPackedDIB;
}
/**************************************************************************
* X11DRV_DIB_CreateDIBFromPixmap
*
* Allocates a packed DIB and copies the Pixmap data into it.
* The Pixmap passed in is deleted after the conversion.
*/
HGLOBAL X11DRV_DIB_CreateDIBFromPixmap(Pixmap pixmap, HDC hdc)
{
HDC hdcMem;
X_PHYSBITMAP *physBitmap;
Pixmap orig_pixmap;
HBITMAP hBmp = 0;
HGLOBAL hPackedDIB = 0;
Window root;
int x,y; /* Unused */
unsigned border_width; /* Unused */
unsigned int depth, width, height;
/* Get the Pixmap dimensions and bit depth */
wine_tsx11_lock();
if (!XGetGeometry(gdi_display, pixmap, &root, &x, &y, &width, &height,
&border_width, &depth)) depth = 0;
wine_tsx11_unlock();
if (!depth) return 0;
TRACE("\tPixmap properties: width=%d, height=%d, depth=%d\n",
width, height, depth);
/*
* Create an HBITMAP with the same dimensions and BPP as the pixmap,
* and make it a container for the pixmap passed.
*/
if (!(hBmp = CreateBitmap( width, height, 1, depth_to_bpp(depth), NULL ))) return 0;
/* force bitmap to be owned by a screen DC */
hdcMem = CreateCompatibleDC( hdc );
SelectObject( hdcMem, SelectObject( hdcMem, hBmp ));
DeleteDC( hdcMem );
physBitmap = X11DRV_get_phys_bitmap( hBmp );
/* swap the new pixmap in */
orig_pixmap = physBitmap->pixmap;
physBitmap->pixmap = pixmap;
/*
* Create a packed DIB from the Pixmap wrapper bitmap created above.
* A packed DIB contains a BITMAPINFO structure followed immediately by
* an optional color palette and the pixel data.
*/
hPackedDIB = X11DRV_DIB_CreateDIBFromBitmap(hdc, hBmp);
/* we can now get rid of the HBITMAP and its original pixmap */
physBitmap->pixmap = orig_pixmap;
DeleteObject(hBmp);
TRACE("\tReturning packed DIB %p\n", hPackedDIB);
return hPackedDIB;
}
/**************************************************************************
* X11DRV_DIB_CreatePixmapFromDIB
*
* Creates a Pixmap from a packed DIB
*/
Pixmap X11DRV_DIB_CreatePixmapFromDIB( HGLOBAL hPackedDIB, HDC hdc )
{
Pixmap pixmap;
X_PHYSBITMAP *physBitmap;
HBITMAP hBmp;
LPBITMAPINFO pbmi;
/* Create a DDB from the DIB */
pbmi = GlobalLock(hPackedDIB);
hBmp = CreateDIBitmap(hdc, &pbmi->bmiHeader, CBM_INIT,
(LPBYTE)pbmi + bitmap_info_size( pbmi, DIB_RGB_COLORS ),
pbmi, DIB_RGB_COLORS);
GlobalUnlock(hPackedDIB);
/* clear the physBitmap so that we can steal its pixmap */
physBitmap = X11DRV_get_phys_bitmap( hBmp );
pixmap = physBitmap->pixmap;
physBitmap->pixmap = 0;
/* Delete the DDB we created earlier now that we have stolen its pixmap */
DeleteObject(hBmp);
TRACE("Returning Pixmap %lx\n", pixmap);
return pixmap;
}
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