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goma / wine / db226a8049011efb00b47576153006494a25a9df / . / dlls / x11drv / 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.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 "gdi.h"
#include "x11drv.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(bitmap);
WINE_DECLARE_DEBUG_CHANNEL(x11drv);
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;
BOOL useShm;
int dibpitch;
} X11DRV_DIB_IMAGEBITS_DESCR;
enum Rle_EscapeCodes
{
RLE_EOL = 0, /* End of line */
RLE_END = 1, /* End of bitmap */
RLE_DELTA = 2 /* Delta */
};
/***********************************************************************
* X11DRV_DIB_GetXImageWidthBytes
*
* Return the width of an X image in bytes
*/
inline static 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_BitmapInfoSize
*
* Return the size of the bitmap info structure including color table.
*/
int X11DRV_DIB_BitmapInfoSize( const BITMAPINFO * info, WORD coloruse )
{
int colors;
if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
{
BITMAPCOREHEADER *core = (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;
return sizeof(BITMAPINFOHEADER) + 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;
wine_tsx11_lock();
width_bytes = X11DRV_DIB_GetXImageWidthBytes( width, depth );
image = XCreateImage( gdi_display, visual, depth, ZPixmap, 0,
calloc( height, width_bytes ),
width, height, 32, width_bytes );
wine_tsx11_unlock();
return image;
}
/***********************************************************************
* 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, DWORD *width,
int *height, WORD *bpp, WORD *compr )
{
if (header->biSize == sizeof(BITMAPCOREHEADER))
{
BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)header;
*width = core->bcWidth;
*height = core->bcHeight;
*bpp = core->bcBitCount;
*compr = 0;
return 0;
}
if (header->biSize >= sizeof(BITMAPINFOHEADER))
{
*width = header->biWidth;
*height = header->biHeight;
*bpp = header->biBitCount;
*compr = header->biCompression;
return 1;
}
ERR("(%ld): unknown/wrong size for header\n", header->biSize );
return -1;
}
/***********************************************************************
* X11DRV_DIB_GenColorMap
*
* Fills the color map of a bitmap palette. Should not be called
* for a >8-bit deep bitmap.
*/
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)
{
int max = 1 << depth;
if (end > max) end = max;
if (quads)
{
RGBQUAD * rgb = (RGBQUAD *)colorPtr;
if (depth == 1) /* Monochrome */
for (i = start; i < end; i++, rgb++)
colorMapping[i] = (rgb->rgbRed + rgb->rgbGreen +
rgb->rgbBlue > 255*3/2);
else
for (i = start; i < end; i++, rgb++)
colorMapping[i] = X11DRV_PALETTE_ToPhysical( physDev, RGB(rgb->rgbRed,
rgb->rgbGreen,
rgb->rgbBlue));
}
else
{
RGBTRIPLE * rgb = (RGBTRIPLE *)colorPtr;
if (depth == 1) /* Monochrome */
for (i = start; i < end; i++, rgb++)
colorMapping[i] = (rgb->rgbtRed + rgb->rgbtGreen +
rgb->rgbtBlue > 255*3/2);
else
for (i = start; i < end; i++, rgb++)
colorMapping[i] = X11DRV_PALETTE_ToPhysical( physDev, RGB(rgb->rgbtRed,
rgb->rgbtGreen,
rgb->rgbtBlue));
}
}
else /* DIB_PAL_COLORS */
{
if (colorPtr) {
WORD * index = (WORD *)colorPtr;
for (i = start; i < end; i++, index++)
colorMapping[i] = X11DRV_PALETTE_ToPhysical( physDev, PALETTEINDEX(*index) );
} else {
for (i = start; i < end; i++)
colorMapping[i] = X11DRV_PALETTE_ToPhysical( physDev, PALETTEINDEX(i) );
}
}
return colorMapping;
}
/***********************************************************************
* X11DRV_DIB_BuildColorMap
*
* Build the color map from the bitmap palette. Should not be called
* for a >8-bit deep bitmap.
*/
int *X11DRV_DIB_BuildColorMap( X11DRV_PDEVICE *physDev, WORD coloruse, WORD depth,
const BITMAPINFO *info, int *nColors )
{
int colors;
BOOL isInfo;
const void *colorPtr;
int *colorMapping;
if ((isInfo = (info->bmiHeader.biSize == sizeof(BITMAPINFOHEADER))))
{
colors = info->bmiHeader.biClrUsed;
if (!colors) colors = 1 << info->bmiHeader.biBitCount;
colorPtr = info->bmiColors;
}
else /* assume BITMAPCOREINFO */
{
colors = 1 << ((BITMAPCOREHEADER *)&info->bmiHeader)->bcBitCount;
colorPtr = (WORD *)((BITMAPCOREINFO *)info)->bmciColors;
}
if (colors > 256)
{
ERR("called with >256 colors!\n");
return NULL;
}
/* just so CopyDIBSection doesn't have to create an identity palette */
if (coloruse == (WORD)-1) colorPtr = NULL;
if (!(colorMapping = (int *)HeapAlloc(GetProcessHeap(), 0,
colors * sizeof(int) )))
return NULL;
*nColors = colors;
return X11DRV_DIB_GenColorMap( physDev, colorMapping, coloruse, depth,
isInfo, colorPtr, 0, colors);
}
/***********************************************************************
* X11DRV_DIB_MapColor
*/
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_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, DWORD linebytes)
{
int h;
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;
/* ==== pal 1 dib -> any bmp format ==== */
for (h = lines-1; h >=0; h--) {
srcbyte=srcbits;
/* FIXME: should avoid putting x<left pixels (minor speed issue) */
for (i = dstwidth/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 (dstwidth % 8){
srcval=*srcbyte;
switch (dstwidth & 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, DWORD linebytes )
{
DWORD x;
int h;
if (lines < 0 ) {
lines = -lines;
dstbits = dstbits + linebytes * (lines - 1);
linebytes = -linebytes;
}
switch (bmpImage->depth)
{
case 1:
case 4:
if (bmpImage->red_mask==0 && bmpImage->green_mask==0 && bmpImage->blue_mask==0 && 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<dstwidth; 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 ((dstwidth&7)!=0) {
*dstbyte=dstval;
}
dstbits += linebytes;
}
} else {
goto notsupported;
}
break;
case 8:
if (bmpImage->red_mask==0 && bmpImage->green_mask==0 && bmpImage->blue_mask==0 && 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<dstwidth; x++) {
PALETTEENTRY srcval;
srcval=srccolors[(int)*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 ((dstwidth&7)!=0) {
*dstbyte=dstval;
}
srcbits = (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<dstwidth; 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 ((dstwidth&7)!=0) {
*dstbyte=dstval;
}
srcbits = (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<dstwidth; 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 ((dstwidth&7)!=0) {
*dstbyte=dstval;
}
srcbits = (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<dstwidth; 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 ((dstwidth&7)!=0) {
*dstbyte=dstval;
}
srcbits = (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<dstwidth; 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 ((dstwidth&7)!=0) {
*dstbyte=dstval;
}
srcbits = (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<dstwidth; 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 ((dstwidth&7)!=0) {
*dstbyte=dstval;
}
srcbits = (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<dstwidth; 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 ((dstwidth&7)!=0) {
*dstbyte=dstval;
}
srcbits = (char*)srcbits - bmpImage->bytes_per_line;
dstbits += linebytes;
}
}
}
break;
default:
notsupported:
{
BYTE* dstbyte;
unsigned long white = (1 << bmpImage->bits_per_pixel) - 1;
/* ==== any bmp format -> pal 1 dib ==== */
WARN("from unknown %d bit bitmap (%lx,%lx,%lx) to 1 bit DIB\n",
bmpImage->bits_per_pixel, bmpImage->red_mask,
bmpImage->green_mask, bmpImage->blue_mask );
for (h=lines-1; h>=0; h--) {
BYTE dstval;
dstbyte=dstbits;
dstval=0;
for (x=0; x<dstwidth; x++) {
dstval|=(XGetPixel( bmpImage, x, h) >= white) << (7 - (x&7));
if ((x&7)==7) {
*dstbyte++=dstval;
dstval=0;
}
}
if ((dstwidth&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, DWORD linebytes)
{
int h;
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;
/* ==== pal 4 dib -> any bmp format ==== */
for (h = lines-1; h >= 0; h--) {
srcbyte=srcbits;
for (i = dstwidth/2, x = left; i > 0; i--) {
BYTE srcval=*srcbyte++;
XPutPixel( bmpImage, x++, h, colors[srcval >> 4] );
XPutPixel( bmpImage, x++, h, colors[srcval & 0x0f] );
}
if (dstwidth & 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, DWORD linebytes )
{
DWORD x;
int h;
BYTE *bits;
if (lines < 0 )
{
lines = -lines;
dstbits = dstbits + ( linebytes * (lines-1) );
linebytes = -linebytes;
}
bits = dstbits;
switch (bmpImage->depth) {
case 1:
case 4:
if (bmpImage->red_mask==0 && bmpImage->green_mask==0 && bmpImage->blue_mask==0 && 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 < dstwidth; 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 ((dstwidth&1)!=0) {
*dstbyte=dstval;
}
dstbits += linebytes;
}
} else {
goto notsupported;
}
break;
case 8:
if (bmpImage->red_mask==0 && bmpImage->green_mask==0 && bmpImage->blue_mask==0 && 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<dstwidth; x++) {
PALETTEENTRY srcval;
srcval = srccolors[(int)*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 ((dstwidth&1)!=0) {
*dstbyte=dstval;
}
srcbits = (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<dstwidth; 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 ((dstwidth&1)!=0) {
*dstbyte=dstval;
}
srcbits = (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<dstwidth; 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 ((dstwidth&1)!=0) {
*dstbyte=dstval;
}
srcbits = (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<dstwidth; 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 ((dstwidth&1)!=0) {
*dstbyte=dstval;
}
srcbits = (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<dstwidth; 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 ((dstwidth&1)!=0) {
*dstbyte=dstval;
}
srcbits = (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<dstwidth/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 (dstwidth&1) {
/* And the the odd pixel */
*dstbyte++=(X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[2],
srcbyte[1],
srcbyte[0]) << 4);
}
srcbits = (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<dstwidth/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 (dstwidth&1) {
/* And the the odd pixel */
*dstbyte++=(X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[0],
srcbyte[1],
srcbyte[2]) << 4);
}
srcbits = (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<dstwidth/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 (dstwidth&1) {
/* And the the odd pixel */
*dstbyte++=(X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[2],
srcbyte[1],
srcbyte[0]) << 4);
}
srcbits = (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<dstwidth/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 (dstwidth&1) {
/* And the the odd pixel */
*dstbyte++=(X11DRV_DIB_GetNearestIndex
(colors, 16,
srcbyte[0],
srcbyte[1],
srcbyte[2]) << 4);
}
srcbits = (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<(dstwidth & ~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 (dstwidth & 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 width, DWORD dstwidth,
int left, int *colors,
XImage *bmpImage )
{
int x = 0, y = lines - 1, c, length;
const BYTE *begin = bits;
while (y >= 0)
{
length = *bits++;
if (length) { /* encoded */
c = *bits++;
while (length--) {
if (x >= width) break;
XPutPixel(bmpImage, x++, y, colors[c >> 4]);
if (!length--) break;
if (x >= width) break;
XPutPixel(bmpImage, x++, y, colors[c & 0xf]);
}
} 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 < width) XPutPixel(bmpImage, x++, y, colors[c >> 4]);
if (!length--) break;
if (x < width) XPutPixel(bmpImage, x++, y, colors[c & 0xf]);
}
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,
DWORD linebytes )
{
DWORD x;
int h;
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:
#if defined(__i386__) && defined(__GNUC__)
/* Some X servers might have 32 bit/ 16bit deep pixel */
if (lines && dstwidth && (bmpImage->bits_per_pixel == 16) &&
(ImageByteOrder(gdi_display)==LSBFirst) )
{
dstbits=bmpImage->data+left*2+(lines-1)*bmpImage->bytes_per_line;
/* FIXME: Does this really handle all these cases correctly? */
/* ==== pal 8 dib -> rgb or bgr 555 or 565 bmp ==== */
for (h = lines ; h--; ) {
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" (dstwidth),
"d" (colors)
:"eax", "cc", "memory"
);
srcbyte = (srcbits += linebytes);
dstbits -= bmpImage->bytes_per_line;
}
return;
}
break;
#endif
case 24:
case 32:
#if defined(__i386__) && defined(__GNUC__)
if (lines && dstwidth && (bmpImage->bits_per_pixel == 32) &&
(ImageByteOrder(gdi_display)==LSBFirst) )
{
dstbits=bmpImage->data+left*4+(lines-1)*bmpImage->bytes_per_line;
/* FIXME: Does this really handle both cases correctly? */
/* ==== pal 8 dib -> rgb or bgr 0888 bmp ==== */
for (h = lines ; h--; ) {
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" (dstwidth),
"d" (colors)
:"eax", "cc", "memory"
);
srcbyte = (srcbits += linebytes);
dstbits -= bmpImage->bytes_per_line;
}
return;
}
break;
#endif
default:
break; /* use slow generic case below */
}
/* ==== pal 8 dib -> any bmp format ==== */
for (h=lines-1; h>=0; h--) {
for (x=left; x<dstwidth+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, DWORD linebytes )
{
DWORD x;
int h;
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 for for GetDIBits calls.
* (In somes cases, in a updateDIBSection, the returned colors are bad too)
*/
if (!srccolors) goto updatesection;
switch (bmpImage->depth) {
case 1:
case 4:
if (bmpImage->red_mask==0 && bmpImage->green_mask==0 && bmpImage->blue_mask==0 && 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<dstwidth; 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 (bmpImage->red_mask==0 && bmpImage->green_mask==0 && bmpImage->blue_mask==0 && 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 < dstwidth; x++) {
PALETTEENTRY srcval;
srcval=srccolors[(int)*srcpixel++];
*dstbyte++=X11DRV_DIB_GetNearestIndex(colors, 256,
srcval.peRed,
srcval.peGreen,
srcval.peBlue);
}
srcbits = (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<dstwidth; 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 = (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<dstwidth; 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 = (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<dstwidth; 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 = (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<dstwidth; 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 = (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<dstwidth; x++) {
*dstbyte++=X11DRV_DIB_GetNearestIndex
(colors, 256,
srcbyte[2],
srcbyte[1],
srcbyte[0]);
srcbyte+=bytes_per_pixel;
}
srcbits = (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<dstwidth; x++) {
*dstbyte++=X11DRV_DIB_GetNearestIndex
(colors, 256,
srcbyte[0],
srcbyte[1],
srcbyte[2]);
srcbyte+=bytes_per_pixel;
}
srcbits = (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<dstwidth; 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 width, DWORD dstwidth,
int left, int *colors,
XImage *bmpImage )
{
int x; /* X-positon 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 < dstwidth) XPutPixel(bmpImage, x++, y, color);
}
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 >= dstwidth)
{
pIn += length;
break;
}
XPutPixel(bmpImage, x++, y, color);
}
/*
* 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, DWORD linebytes )
{
DWORD x;
int h;
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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
}
}
}
break;
default:
notsupported:
WARN("from 16 bit DIB (%lx,%lx,%lx) 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<dstwidth+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, DWORD dibpitch )
{
DWORD x;
int h;
const dib_conversions *convs = (bmpImage->byte_order == LSBFirst) ? &dib_normal : &dib_src_byteswap;
DWORD linebytes = dibpitch;
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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
}
}
}
break;
case 1:
case 4:
if (bmpImage->red_mask==0 && bmpImage->green_mask==0 && bmpImage->blue_mask==0 && 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 < dstwidth; 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 (bmpImage->red_mask==0 && bmpImage->green_mask==0 && bmpImage->blue_mask==0 && 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=bmpImage->data+(lines-1)*bmpImage->bytes_per_line;
for (h=0; h<lines; h++) {
srcpixel=srcbits;
dstpixel=(LPWORD)dstbits;
for (x = 0; x < dstwidth; x++) {
PALETTEENTRY srcval;
DWORD dstval;
srcval=srccolors[(int)*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 (%lx,%lx,%lx)\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 < dstwidth; 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;
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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
goto notsupported;
}
} else {
goto notsupported;
}
}
break;
default:
notsupported:
WARN("from 24 bit DIB (%lx,%lx,%lx) 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 bormat ==== */
const BYTE* srcbyte;
/* Windows only supports one 24bpp DIB format: RGB888 */
srcbits+=left*3;
for (h = lines - 1; h >= 0; h--) {
srcbyte=(const BYTE*)srcbits;
for (x = left; x < dstwidth+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;
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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
goto notsupported;
}
} else {
goto notsupported;
}
}
break;
case 1:
case 4:
if (bmpImage->red_mask==0 && bmpImage->green_mask==0 && bmpImage->blue_mask==0 && 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 < dstwidth; 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 (bmpImage->red_mask==0 && bmpImage->green_mask==0 && bmpImage->blue_mask == 0 && 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 < dstwidth; x++ ) {
PALETTEENTRY srcval;
srcval=srccolors[(int)*srcpixel++];
dstbyte[0]=srcval.peBlue;
dstbyte[1]=srcval.peGreen;
dstbyte[2]=srcval.peRed;
dstbyte+=3;
}
srcbits = (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 (%lx,%lx,%lx)\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 < dstwidth; 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, *ptr;
int h;
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;
}
ptr = (DWORD *) srcbits + left;
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
(dstwidth,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
(dstwidth,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
(dstwidth,lines,
srcbits,linebytes,
rSrc,gSrc,bSrc,
dstbits,-bmpImage->bytes_per_line);
} else {
/* ==== any 0888 dib -> bgr 888 bmp ==== */
convs->Convert_any0888_to_bgr888
(dstwidth,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
(dstwidth,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
(dstwidth,lines,
srcbits,linebytes,
dstbits,-bmpImage->bytes_per_line);
} else {
/* ==== any 0888 dib -> any 0888 bmp ==== */
convs->Convert_0888_any
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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 (%lx,%lx,%lx) 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 < dstwidth+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, DWORD linebytes )
{
DWORD x;
int h;
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
(dstwidth,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
(dstwidth,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
(dstwidth,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes,
rDst,gDst,bDst);
} else {
/* ==== bgr 888 bmp -> any 0888 dib ==== */
convs->Convert_bgr888_to_any0888
(dstwidth,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
(dstwidth,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
(dstwidth,lines,
srcbits,-bmpImage->bytes_per_line,
dstbits,linebytes);
} else {
/* ==== any 0888 bmp -> any 0888 dib ==== */
convs->Convert_0888_any
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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
(dstwidth,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 (bmpImage->red_mask==0 && bmpImage->green_mask==0 && bmpImage->blue_mask==0 && 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 < dstwidth; 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 (bmpImage->red_mask==0 && bmpImage->green_mask==0 && bmpImage->blue_mask==0 && 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 < dstwidth; x++) {
PALETTEENTRY srcval;
srcval=srccolors[(int)*srcpixel++];
*dstpixel++=(srcval.peRed << rShift) |
(srcval.peGreen << gShift) |
(srcval.peBlue << bShift);
}
srcbits = (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 (%lx,%lx,%lx)\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 < dstwidth; x++) {
COLORREF srcval;
srcval=X11DRV_PALETTE_ToLogical(XGetPixel(bmpImage, x, h));
*dstpixel++=(GetRValue(srcval) << rShift) |
(GetGValue(srcval) << gShift) |
(GetBValue(srcval) << bShift);
}
dstbits += linebytes;
}
}
break;
}
}
/***********************************************************************
* 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;
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 = calloc( lines, bmpImage->bytes_per_line );
if(bmpImage->data == NULL) {
ERR("Out of memory!\n");
XDestroyImage( bmpImage );
wine_tsx11_unlock();
return lines;
}
}
TRACE("Dib: depth=%d r=%lx g=%lx b=%lx\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);
/* Transfer the pixels */
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) {
XGetSubImage( gdi_display, descr->drawable, descr->xDest, descr->yDest,
descr->width, descr->height, AllPlanes, ZPixmap,
bmpImage, descr->xSrc, descr->ySrc );
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) {
XGetSubImage( gdi_display, descr->drawable, descr->xDest, descr->yDest,
descr->width, descr->height, AllPlanes, ZPixmap,
bmpImage, descr->xSrc, descr->ySrc );
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;
}
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);
#ifdef HAVE_LIBXXSHM
if (descr->useShm)
{
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 (!descr->image) XDestroyImage( 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;
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 = calloc( lines, bmpImage->bytes_per_line );
if(bmpImage->data == NULL) {
ERR("Out of memory!\n");
XDestroyImage( bmpImage );
wine_tsx11_unlock();
return lines;
}
}
#ifdef HAVE_LIBXXSHM
if (descr->useShm)
{
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 eleminate 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 );
}
TRACE("Dib: depth=%2d r=%lx g=%lx b=%lx\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");
else
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");
else
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 (!descr->image) XDestroyImage( bmpImage );
wine_tsx11_unlock();
return lines;
}
/*************************************************************************
* X11DRV_SetDIBitsToDevice
*
*/
INT 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;
DWORD width;
INT result;
int height;
BOOL top_down;
POINT pt;
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)
{
INT 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;
X11DRV_SetupGCForText( physDev ); /* To have the correct colors */
wine_tsx11_lock();
XSetFunction(gdi_display, physDev->gc, X11DRV_XROPfunction[GetROP2(physDev->hdc) - 1]);
wine_tsx11_unlock();
switch (descr.infoBpp)
{
case 1:
case 4:
case 8:
descr.colorMap = (RGBQUAD *)X11DRV_DIB_BuildColorMap(
coloruse == DIB_PAL_COLORS ? physDev : NULL, 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) ? *(DWORD *)info->bmiColors : 0x7c00;
descr.gMask = (descr.compression == BI_BITFIELDS) ? *((DWORD *)info->bmiColors + 1) : 0x03e0;
descr.bMask = (descr.compression == BI_BITFIELDS) ? *((DWORD *)info->bmiColors + 2) : 0x001f;
descr.colorMap = 0;
break;
case 24:
case 32:
descr.rMask = (descr.compression == BI_BITFIELDS) ? *(DWORD *)info->bmiColors : 0xff0000;
descr.gMask = (descr.compression == BI_BITFIELDS) ? *((DWORD *)info->bmiColors + 1) : 0x00ff00;
descr.bMask = (descr.compression == BI_BITFIELDS) ? *((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->org.x + pt.x;
descr.yDest = physDev->org.y + pt.y;
descr.width = cx;
descr.height = cy;
descr.useShm = FALSE;
descr.dibpitch = ((width * descr.infoBpp + 31) &~31) / 8;
result = X11DRV_DIB_SetImageBits( &descr );
if (descr.infoBpp <= 8)
HeapFree(GetProcessHeap(), 0, descr.colorMap);
return result;
}
/***********************************************************************
* SetDIBits (X11DRV.@)
*/
INT X11DRV_SetDIBits( X11DRV_PDEVICE *physDev, HBITMAP hbitmap, UINT startscan,
UINT lines, LPCVOID bits, const BITMAPINFO *info, UINT coloruse )
{
X11DRV_DIB_IMAGEBITS_DESCR descr;
BITMAPOBJ *bmp;
int height, tmpheight;
INT result;
descr.physDev = physDev;
if (DIB_GetBitmapInfo( &info->bmiHeader, &descr.infoWidth, &height,
&descr.infoBpp, &descr.compression ) == -1)
return 0;
tmpheight = height;
if (height < 0) height = -height;
if (!lines || (startscan >= height))
return 0;
if (!(bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ))) return 0;
if (startscan + lines > height) lines = height - startscan;
switch (descr.infoBpp)
{
case 1:
case 4:
case 8:
descr.colorMap = (RGBQUAD *)X11DRV_DIB_BuildColorMap(
coloruse == DIB_PAL_COLORS ? descr.physDev : NULL, coloruse,
bmp->bitmap.bmBitsPixel,
info, &descr.nColorMap );
if (!descr.colorMap)
{
GDI_ReleaseObj( hbitmap );
return 0;
}
descr.rMask = descr.gMask = descr.bMask = 0;
break;
case 15:
case 16:
descr.rMask = (descr.compression == BI_BITFIELDS) ? *(DWORD *)info->bmiColors : 0x7c00;
descr.gMask = (descr.compression == BI_BITFIELDS) ? *((DWORD *)info->bmiColors + 1) : 0x03e0;
descr.bMask = (descr.compression == BI_BITFIELDS) ? *((DWORD *)info->bmiColors + 2) : 0x001f;
descr.colorMap = 0;
break;
case 24:
case 32:
descr.rMask = (descr.compression == BI_BITFIELDS) ? *(DWORD *)info->bmiColors : 0xff0000;
descr.gMask = (descr.compression == BI_BITFIELDS) ? *((DWORD *)info->bmiColors + 1) : 0x00ff00;
descr.bMask = (descr.compression == BI_BITFIELDS) ? *((DWORD *)info->bmiColors + 2) : 0x0000ff;
descr.colorMap = 0;
break;
default: break;
}
descr.bits = bits;
descr.image = NULL;
descr.palentry = NULL;
descr.lines = tmpheight >= 0 ? lines : -lines;
descr.depth = bmp->bitmap.bmBitsPixel;
descr.drawable = (Pixmap)bmp->physBitmap;
descr.gc = BITMAP_GC(bmp);
descr.xSrc = 0;
descr.ySrc = 0;
descr.xDest = 0;
descr.yDest = height - startscan - lines;
descr.width = bmp->bitmap.bmWidth;
descr.height = lines;
descr.useShm = FALSE;
descr.dibpitch = ((descr.infoWidth * descr.infoBpp + 31) &~31) / 8;
X11DRV_DIB_Lock(bmp, DIB_Status_GdiMod, FALSE);
result = X11DRV_DIB_SetImageBits( &descr );
X11DRV_DIB_Unlock(bmp, TRUE);
if (descr.colorMap) HeapFree(GetProcessHeap(), 0, descr.colorMap);
GDI_ReleaseObj( hbitmap );
return result;
}
/***********************************************************************
* GetDIBits (X11DRV.@)
*/
INT X11DRV_GetDIBits( X11DRV_PDEVICE *physDev, HBITMAP hbitmap, UINT startscan, UINT lines,
LPVOID bits, BITMAPINFO *info, UINT coloruse )
{
X11DRV_DIBSECTION *dib;
X11DRV_DIB_IMAGEBITS_DESCR descr;
PALETTEENTRY palette[256];
BITMAPOBJ *bmp;
int height;
GetPaletteEntries( GetCurrentObject( physDev->hdc, OBJ_PAL ), 0, 256, palette );
if (!(bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ))) return 0;
dib = (X11DRV_DIBSECTION *) bmp->dib;
TRACE("%u scanlines of (%i,%i) -> (%i,%i) starting from %u\n",
lines, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
(int)info->bmiHeader.biWidth, (int)info->bmiHeader.biHeight,
startscan );
if( lines > bmp->bitmap.bmHeight ) lines = bmp->bitmap.bmHeight;
height = info->bmiHeader.biHeight;
if (height < 0) height = -height;
if( lines > height ) lines = height;
/* Top-down images have a negative biHeight, the scanlines of theses 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( info->bmiHeader.biHeight < 0 && lines > 0) lines = -lines;
if( startscan >= bmp->bitmap.bmHeight )
{
lines = 0;
goto done;
}
if (DIB_GetBitmapInfo( &info->bmiHeader, &descr.infoWidth, &descr.lines,
&descr.infoBpp, &descr.compression ) == -1)
{
lines = 0;
goto done;
}
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) ? *(DWORD *)info->bmiColors : 0x7c00;
descr.gMask = (descr.compression == BI_BITFIELDS) ? *((DWORD *)info->bmiColors + 1) : 0x03e0;
descr.bMask = (descr.compression == BI_BITFIELDS) ? *((DWORD *)info->bmiColors + 2) : 0x001f;
break;
case 24:
case 32:
descr.rMask = (descr.compression == BI_BITFIELDS) ? *(DWORD *)info->bmiColors : 0xff0000;
descr.gMask = (descr.compression == BI_BITFIELDS) ? *((DWORD *)info->bmiColors + 1) : 0x00ff00;
descr.bMask = (descr.compression == BI_BITFIELDS) ? *((DWORD *)info->bmiColors + 2) : 0x0000ff;
break;
}
descr.physDev = physDev;
descr.palentry = palette;
descr.bits = bits;
descr.image = NULL;
descr.lines = lines;
descr.depth = bmp->bitmap.bmBitsPixel;
descr.drawable = (Pixmap)bmp->physBitmap;
descr.gc = BITMAP_GC(bmp);
descr.width = bmp->bitmap.bmWidth;
descr.height = bmp->bitmap.bmHeight;
descr.colorMap = info->bmiColors;
descr.xDest = 0;
descr.yDest = 0;
descr.xSrc = 0;
if (descr.lines > 0)
{
descr.ySrc = (descr.height-1) - (startscan + (lines-1));
}
else
{
descr.ySrc = startscan;
}
#ifdef HAVE_LIBXXSHM
descr.useShm = dib ? (dib->shminfo.shmid != -1) : FALSE;
#else
descr.useShm = FALSE;
#endif
descr.dibpitch = dib ? (dib->dibSection.dsBm.bmWidthBytes)
: (((descr.infoWidth * descr.infoBpp + 31) &~31) / 8);
X11DRV_DIB_Lock(bmp, DIB_Status_GdiMod, FALSE);
X11DRV_DIB_GetImageBits( &descr );
X11DRV_DIB_Unlock(bmp, TRUE);
if(info->bmiHeader.biSizeImage == 0) /* Fill in biSizeImage */
info->bmiHeader.biSizeImage = X11DRV_DIB_GetDIBWidthBytes( info->bmiHeader.biWidth,
info->bmiHeader.biBitCount )
* abs( info->bmiHeader.biHeight );
if (descr.compression == BI_BITFIELDS)
{
*(DWORD *)info->bmiColors = descr.rMask;
*((DWORD *)info->bmiColors+1) = descr.gMask;
*((DWORD *)info->bmiColors+2) = descr.bMask;
}
else
{
/* if RLE or JPEG compression were supported,
* this line would be invalid. */
info->bmiHeader.biCompression = 0;
}
done:
GDI_ReleaseObj( hbitmap );
return lines;
}
/***********************************************************************
* DIB_DoProtectDIBSection
*/
static void X11DRV_DIB_DoProtectDIBSection( BITMAPOBJ *bmp, DWORD new_prot )
{
DWORD old_prot;
INT totalSize;
DIBSECTION *dib = bmp->dib;
INT effHeight = dib->dsBm.bmHeight >= 0? dib->dsBm.bmHeight
: -dib->dsBm.bmHeight;
/* use the biSizeImage data as the memory size only if we're dealing with a
compressed image where the value is set. Otherwise, calculate based on
width * height */
if (dib->dsBmih.biSizeImage &&
(dib->dsBmih.biCompression == BI_RLE4 || dib->dsBmih.biCompression == BI_RLE8))
totalSize = dib->dsBmih.biSizeImage;
else
totalSize = dib->dsBm.bmWidthBytes * effHeight;
VirtualProtect(dib->dsBm.bmBits, totalSize, new_prot, &old_prot);
TRACE("Changed protection from %ld to %ld\n", old_prot, new_prot);
}
/***********************************************************************
* X11DRV_DIB_DoUpdateDIBSection
*/
static void X11DRV_DIB_DoCopyDIBSection(BITMAPOBJ *bmp, BOOL toDIB,
void *colorMap, int nColorMap,
Drawable dest,
DWORD xSrc, DWORD ySrc,
DWORD xDest, DWORD yDest,
DWORD width, DWORD height)
{
X11DRV_DIBSECTION *dib = (X11DRV_DIBSECTION *) bmp->dib;
X11DRV_DIB_IMAGEBITS_DESCR descr;
if (DIB_GetBitmapInfo( &dib->dibSection.dsBmih, &descr.infoWidth, &descr.lines,
&descr.infoBpp, &descr.compression ) == -1)
return;
descr.physDev = NULL;
descr.palentry = NULL;
descr.image = dib->image;
descr.colorMap = colorMap;
descr.nColorMap = nColorMap;
descr.bits = dib->dibSection.dsBm.bmBits;
descr.depth = bmp->bitmap.bmBitsPixel;
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) ? dib->dibSection.dsBitfields[0] : 0x7c00;
descr.gMask = (descr.compression == BI_BITFIELDS) ? dib->dibSection.dsBitfields[1] : 0x03e0;
descr.bMask = (descr.compression == BI_BITFIELDS) ? dib->dibSection.dsBitfields[2] : 0x001f;
break;
case 24:
case 32:
descr.rMask = (descr.compression == BI_BITFIELDS) ? dib->dibSection.dsBitfields[0] : 0xff0000;
descr.gMask = (descr.compression == BI_BITFIELDS) ? dib->dibSection.dsBitfields[1] : 0x00ff00;
descr.bMask = (descr.compression == BI_BITFIELDS) ? dib->dibSection.dsBitfields[2] : 0x0000ff;
break;
}
/* Hack for now */
descr.drawable = dest;
descr.gc = BITMAP_GC(bmp);
descr.xSrc = xSrc;
descr.ySrc = ySrc;
descr.xDest = xDest;
descr.yDest = yDest;
descr.width = width;
descr.height = height;
#ifdef HAVE_LIBXXSHM
descr.useShm = (dib->shminfo.shmid != -1);
#else
descr.useShm = FALSE;
#endif
descr.dibpitch = dib->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)
{
BITMAPOBJ *bmp;
HBITMAP hBitmap;
int nColorMap = 0, *colorMap = NULL, aColorMap = FALSE;
TRACE("(%p,%p,%ld,%ld,%ld,%ld,%ld,%ld)\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 */
if (GetObjectType( physDevSrc->hdc ) != OBJ_MEMDC) {
ERR("called for non-memory source DC!?\n");
return;
}
hBitmap = GetCurrentObject( physDevSrc->hdc, OBJ_BITMAP );
bmp = (BITMAPOBJ *)GDI_GetObjPtr( hBitmap, BITMAP_MAGIC );
if (!(bmp && bmp->dib)) {
ERR("called for non-DIBSection!?\n");
GDI_ReleaseObj( hBitmap );
return;
}
/* while BitBlt should already have made sure we only get
* positive values, we should check for oversize values */
if ((xSrc < bmp->bitmap.bmWidth) &&
(ySrc < bmp->bitmap.bmHeight)) {
if (xSrc + width > bmp->bitmap.bmWidth)
width = bmp->bitmap.bmWidth - xSrc;
if (ySrc + height > bmp->bitmap.bmHeight)
height = bmp->bitmap.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 (bmp->dib->dsBm.bmBitsPixel <= 8) {
X11DRV_DIBSECTION *dib = (X11DRV_DIBSECTION *) bmp->dib;
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 */
colorMap = dib->colorMap;
nColorMap = dib->nColorMap;
} else {
colorMap = X11DRV_DIB_BuildColorMap( physDevSrc, (WORD)-1,
bmp->dib->dsBm.bmBitsPixel,
(BITMAPINFO*)&(bmp->dib->dsBmih),
&nColorMap );
if (colorMap) aColorMap = TRUE;
}
}
/* perform the copy */
X11DRV_DIB_DoCopyDIBSection(bmp, FALSE, colorMap, nColorMap,
physDevDst->drawable, xSrc, ySrc,
physDevDst->org.x + xDest, physDevDst->org.y + yDest,
width, height);
/* free color mapping */
if (aColorMap)
HeapFree(GetProcessHeap(), 0, colorMap);
}
GDI_ReleaseObj( hBitmap );
}
/***********************************************************************
* X11DRV_DIB_DoUpdateDIBSection
*/
static void X11DRV_DIB_DoUpdateDIBSection(BITMAPOBJ *bmp, BOOL toDIB)
{
X11DRV_DIBSECTION *dib = (X11DRV_DIBSECTION *) bmp->dib;
X11DRV_DIB_DoCopyDIBSection(bmp, toDIB, dib->colorMap, dib->nColorMap,
(Drawable)bmp->physBitmap, 0, 0, 0, 0,
bmp->bitmap.bmWidth, bmp->bitmap.bmHeight);
}
/***********************************************************************
* X11DRV_DIB_FaultHandler
*/
static BOOL X11DRV_DIB_FaultHandler( LPVOID res, LPCVOID addr )
{
BITMAPOBJ *bmp;
INT state;
bmp = (BITMAPOBJ *)GDI_GetObjPtr( (HBITMAP)res, BITMAP_MAGIC );
if (!bmp) return FALSE;
state = X11DRV_DIB_Lock(bmp, DIB_Status_None, FALSE);
if (state != DIB_Status_InSync) {
/* no way to tell whether app needs read or write yet,
* try read first */
X11DRV_DIB_Coerce(bmp, DIB_Status_InSync, FALSE);
} else {
/* hm, apparently the app must have write access */
X11DRV_DIB_Coerce(bmp, DIB_Status_AppMod, FALSE);
}
X11DRV_DIB_Unlock(bmp, TRUE);
GDI_ReleaseObj( (HBITMAP)res );
return TRUE;
}
/***********************************************************************
* X11DRV_DIB_Coerce
*/
INT X11DRV_DIB_Coerce(BITMAPOBJ *bmp, INT req, BOOL lossy)
{
X11DRV_DIBSECTION *dib = (X11DRV_DIBSECTION *) bmp->dib;
INT ret = DIB_Status_None;
if (dib) {
EnterCriticalSection(&(dib->lock));
ret = dib->status;
switch (req) {
case DIB_Status_GdiMod:
/* GDI access - request to draw on pixmap */
switch (dib->status)
{
default:
case DIB_Status_None:
dib->p_status = DIB_Status_GdiMod;
X11DRV_DIB_DoUpdateDIBSection( bmp, FALSE );
break;
case DIB_Status_GdiMod:
TRACE("GdiMod requested in status GdiMod\n" );
break;
case DIB_Status_InSync:
TRACE("GdiMod requested in status InSync\n" );
X11DRV_DIB_DoProtectDIBSection( bmp, PAGE_NOACCESS );
dib->status = DIB_Status_GdiMod;
dib->p_status = DIB_Status_InSync;
break;
case DIB_Status_AuxMod:
TRACE("GdiMod requested in status AuxMod\n" );
if (lossy) dib->status = DIB_Status_GdiMod;
else (*dib->copy_aux)(dib->aux_ctx, DIB_Status_GdiMod);
dib->p_status = DIB_Status_AuxMod;
if (dib->status != DIB_Status_AppMod) {
X11DRV_DIB_DoProtectDIBSection( bmp, PAGE_NOACCESS );
break;
}
/* fall through if copy_aux() had to change to AppMod state */
case DIB_Status_AppMod:
TRACE("GdiMod requested in status AppMod\n" );
if (!lossy) {
/* make it readonly to avoid app changing data while we copy */
X11DRV_DIB_DoProtectDIBSection( bmp, PAGE_READONLY );
X11DRV_DIB_DoUpdateDIBSection( bmp, FALSE );
}
X11DRV_DIB_DoProtectDIBSection( bmp, PAGE_NOACCESS );
dib->p_status = DIB_Status_AppMod;
dib->status = DIB_Status_GdiMod;
break;
}
break;
case DIB_Status_InSync:
/* App access - request access to read DIB surface */
/* (typically called from signal handler) */
switch (dib->status)
{
default:
case DIB_Status_None:
/* shouldn't happen from signal handler */
break;
case DIB_Status_AuxMod:
TRACE("InSync requested in status AuxMod\n" );
if (lossy) dib->status = DIB_Status_InSync;
else {
X11DRV_DIB_DoProtectDIBSection( bmp, PAGE_READWRITE );
(*dib->copy_aux)(dib->aux_ctx, DIB_Status_InSync);
}
if (dib->status != DIB_Status_GdiMod) {
X11DRV_DIB_DoProtectDIBSection( bmp, PAGE_READONLY );
break;
}
/* fall through if copy_aux() had to change to GdiMod state */
case DIB_Status_GdiMod:
TRACE("InSync requested in status GdiMod\n" );
if (!lossy) {
X11DRV_DIB_DoProtectDIBSection( bmp, PAGE_READWRITE );
X11DRV_DIB_DoUpdateDIBSection( bmp, TRUE );
}
X11DRV_DIB_DoProtectDIBSection( bmp, PAGE_READONLY );
dib->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 (dib->status)
{
default:
case DIB_Status_None:
/* shouldn't happen from signal handler */
break;
case DIB_Status_AuxMod:
TRACE("AppMod requested in status AuxMod\n" );
X11DRV_DIB_DoProtectDIBSection( bmp, PAGE_READWRITE );
if (lossy) dib->status = DIB_Status_AppMod;
else (*dib->copy_aux)(dib->aux_ctx, DIB_Status_AppMod);
if (dib->status != DIB_Status_GdiMod)
break;
/* fall through if copy_aux() had to change to GdiMod state */
case DIB_Status_GdiMod:
TRACE("AppMod requested in status GdiMod\n" );
X11DRV_DIB_DoProtectDIBSection( bmp, PAGE_READWRITE );
if (!lossy) X11DRV_DIB_DoUpdateDIBSection( bmp, TRUE );
dib->status = DIB_Status_AppMod;
break;
case DIB_Status_InSync:
TRACE("AppMod requested in status InSync\n" );
X11DRV_DIB_DoProtectDIBSection( bmp, PAGE_READWRITE );
dib->status = DIB_Status_AppMod;
break;
case DIB_Status_AppMod:
TRACE("AppMod requested in status AppMod\n" );
/* shouldn't happen from signal handler */
break;
}
break;
case DIB_Status_AuxMod:
if (dib->status == DIB_Status_None) {
dib->p_status = req;
} else {
if (dib->status != DIB_Status_AuxMod)
dib->p_status = dib->status;
dib->status = DIB_Status_AuxMod;
}
break;
/* it is up to the caller to do the copy/conversion, probably
* using the return value to decide where to copy from */
}
LeaveCriticalSection(&(dib->lock));
}
return ret;
}
/***********************************************************************
* X11DRV_DIB_Lock
*/
INT X11DRV_DIB_Lock(BITMAPOBJ *bmp, INT req, BOOL lossy)
{
X11DRV_DIBSECTION *dib = (X11DRV_DIBSECTION *) bmp->dib;
INT ret = DIB_Status_None;
if (dib) {
TRACE("Locking %p from thread %04lx\n", bmp, GetCurrentThreadId());
EnterCriticalSection(&(dib->lock));
ret = dib->status;
if (req != DIB_Status_None)
X11DRV_DIB_Coerce(bmp, req, lossy);
}
return ret;
}
/***********************************************************************
* X11DRV_DIB_Unlock
*/
void X11DRV_DIB_Unlock(BITMAPOBJ *bmp, BOOL commit)
{
X11DRV_DIBSECTION *dib = (X11DRV_DIBSECTION *) bmp->dib;
if (dib) {
switch (dib->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 (dib->p_status)
{
case DIB_Status_AuxMod:
TRACE("Unlocking and syncing from AuxMod\n" );
(*dib->copy_aux)(dib->aux_ctx, DIB_Status_AppMod);
if (dib->status != DIB_Status_None) {
dib->p_status = dib->status;
dib->status = DIB_Status_None;
}
if (dib->p_status != DIB_Status_GdiMod)
break;
/* fall through if copy_aux() had to change to GdiMod state */
case DIB_Status_GdiMod:
TRACE("Unlocking and syncing from GdiMod\n" );
X11DRV_DIB_DoUpdateDIBSection( bmp, TRUE );
break;
default:
TRACE("Unlocking without needing to sync\n" );
break;
}
}
else TRACE("Unlocking with no changes\n");
dib->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 ((dib->p_status == DIB_Status_InSync) ||
(dib->p_status == DIB_Status_AppMod)) {
X11DRV_DIB_DoProtectDIBSection( bmp, PAGE_READONLY );
dib->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;
case DIB_Status_AuxMod:
TRACE("Unlocking in status AuxMod\n" );
if (commit) {
/* DIB may need protection now */
if ((dib->p_status == DIB_Status_InSync) ||
(dib->p_status == DIB_Status_AppMod))
X11DRV_DIB_DoProtectDIBSection( bmp, PAGE_NOACCESS );
} else {
/* no commit, revert to previous state */
if (dib->p_status != DIB_Status_None)
dib->status = dib->p_status;
/* no protections changed */
}
dib->p_status = DIB_Status_None;
break;
}
LeaveCriticalSection(&(dib->lock));
TRACE("Unlocked %p\n", bmp);
}
}
/***********************************************************************
* X11DRV_CoerceDIBSection2
*/
INT X11DRV_CoerceDIBSection2(HBITMAP hBmp, INT req, BOOL lossy)
{
BITMAPOBJ *bmp;
INT ret;
bmp = (BITMAPOBJ *)GDI_GetObjPtr( hBmp, BITMAP_MAGIC );
if (!bmp) return DIB_Status_None;
ret = X11DRV_DIB_Coerce(bmp, req, lossy);
GDI_ReleaseObj( hBmp );
return ret;
}
/***********************************************************************
* X11DRV_LockDIBSection2
*/
INT X11DRV_LockDIBSection2(HBITMAP hBmp, INT req, BOOL lossy)
{
BITMAPOBJ *bmp;
INT ret;
bmp = (BITMAPOBJ *)GDI_GetObjPtr( hBmp, BITMAP_MAGIC );
if (!bmp) return DIB_Status_None;
ret = X11DRV_DIB_Lock(bmp, req, lossy);
GDI_ReleaseObj( hBmp );
return ret;
}
/***********************************************************************
* X11DRV_UnlockDIBSection2
*/
void X11DRV_UnlockDIBSection2(HBITMAP hBmp, BOOL commit)
{
BITMAPOBJ *bmp;
bmp = (BITMAPOBJ *)GDI_GetObjPtr( hBmp, BITMAP_MAGIC );
if (!bmp) return;
X11DRV_DIB_Unlock(bmp, commit);
GDI_ReleaseObj( hBmp );
}
/***********************************************************************
* X11DRV_CoerceDIBSection
*/
INT X11DRV_CoerceDIBSection(X11DRV_PDEVICE *physDev, INT req, BOOL lossy)
{
if (!physDev) return DIB_Status_None;
return X11DRV_CoerceDIBSection2( GetCurrentObject( physDev->hdc, OBJ_BITMAP ), req, lossy );
}
/***********************************************************************
* X11DRV_LockDIBSection
*/
INT X11DRV_LockDIBSection(X11DRV_PDEVICE *physDev, INT req, BOOL lossy)
{
if (!physDev) return DIB_Status_None;
if (GetObjectType( physDev->hdc ) != OBJ_MEMDC) return DIB_Status_None;
return X11DRV_LockDIBSection2( GetCurrentObject( physDev->hdc, OBJ_BITMAP ), req, lossy );
}
/***********************************************************************
* X11DRV_UnlockDIBSection
*/
void X11DRV_UnlockDIBSection(X11DRV_PDEVICE *physDev, BOOL commit)
{
if (!physDev) return;
if (GetObjectType( physDev->hdc ) != OBJ_MEMDC) return;
X11DRV_UnlockDIBSection2( GetCurrentObject( physDev->hdc, OBJ_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 = image->data = 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);
}
XFlush(gdi_display);
XDestroyImage(image);
image = NULL;
}
return image;
}
#endif /* HAVE_LIBXXSHM */
/***********************************************************************
* X11DRV_DIB_CreateDIBSection
*/
HBITMAP X11DRV_DIB_CreateDIBSection(
X11DRV_PDEVICE *physDev, BITMAPINFO *bmi, UINT usage,
LPVOID *bits, HANDLE section,
DWORD offset, DWORD ovr_pitch)
{
HBITMAP res = 0;
BITMAPOBJ *bmp = NULL;
X11DRV_DIBSECTION *dib = NULL;
int *colorMap = NULL;
int nColorMap;
/* Fill BITMAP32 structure with DIB data */
BITMAPINFOHEADER *bi = &bmi->bmiHeader;
INT effHeight, totalSize;
BITMAP bm;
LPVOID mapBits = NULL;
TRACE("format (%ld,%ld), planes %d, bpp %d, size %ld, colors %ld (%s)\n",
bi->biWidth, bi->biHeight, bi->biPlanes, bi->biBitCount,
bi->biSizeImage, bi->biClrUsed, usage == DIB_PAL_COLORS? "PAL" : "RGB");
effHeight = bi->biHeight >= 0 ? bi->biHeight : -bi->biHeight;
bm.bmType = 0;
bm.bmWidth = bi->biWidth;
bm.bmHeight = effHeight;
bm.bmWidthBytes = ovr_pitch ? ovr_pitch : X11DRV_DIB_GetDIBWidthBytes(bm.bmWidth, bi->biBitCount);
bm.bmPlanes = bi->biPlanes;
bm.bmBitsPixel = bi->biBitCount;
bm.bmBits = NULL;
/* Get storage location for DIB bits. Only use biSizeImage if it's valid and
we're dealing with a compressed bitmap. Otherwise, use width * height. */
if (bi->biSizeImage && (bi->biCompression == BI_RLE4 || bi->biCompression == BI_RLE8))
totalSize = bi->biSizeImage;
else
totalSize = bm.bmWidthBytes * effHeight;
if (section)
{
SYSTEM_INFO SystemInfo;
DWORD mapOffset;
INT mapSize;
GetSystemInfo( &SystemInfo );
mapOffset = offset - (offset % SystemInfo.dwAllocationGranularity);
mapSize = totalSize + (offset - mapOffset);
mapBits = MapViewOfFile( section,
FILE_MAP_ALL_ACCESS,
0L,
mapOffset,
mapSize );
bm.bmBits = (char *)mapBits + (offset - mapOffset);
}
else if (ovr_pitch && offset)
bm.bmBits = (LPVOID) offset;
else {
offset = 0;
bm.bmBits = VirtualAlloc(NULL, totalSize,
MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE);
}
/* Create Color Map */
if (bm.bmBits && bm.bmBitsPixel <= 8)
colorMap = X11DRV_DIB_BuildColorMap( usage == DIB_PAL_COLORS? physDev : NULL,
usage, bm.bmBitsPixel, bmi, &nColorMap );
/* Allocate Memory for DIB and fill structure */
if (bm.bmBits)
dib = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(X11DRV_DIBSECTION));
if (dib)
{
dib->dibSection.dsBm = bm;
dib->dibSection.dsBmih = *bi;
dib->dibSection.dsBmih.biSizeImage = totalSize;
/* Set dsBitfields values */
if ( usage == DIB_PAL_COLORS || bi->biBitCount <= 8)
{
dib->dibSection.dsBitfields[0] = dib->dibSection.dsBitfields[1] = dib->dibSection.dsBitfields[2] = 0;
}
else switch( bi->biBitCount )
{
case 15:
case 16:
dib->dibSection.dsBitfields[0] = (bi->biCompression == BI_BITFIELDS) ? *(DWORD *)bmi->bmiColors : 0x7c00;
dib->dibSection.dsBitfields[1] = (bi->biCompression == BI_BITFIELDS) ? *((DWORD *)bmi->bmiColors + 1) : 0x03e0;
dib->dibSection.dsBitfields[2] = (bi->biCompression == BI_BITFIELDS) ? *((DWORD *)bmi->bmiColors + 2) : 0x001f;
break;
case 24:
case 32:
dib->dibSection.dsBitfields[0] = (bi->biCompression == BI_BITFIELDS) ? *(DWORD *)bmi->bmiColors : 0xff0000;
dib->dibSection.dsBitfields[1] = (bi->biCompression == BI_BITFIELDS) ? *((DWORD *)bmi->bmiColors + 1) : 0x00ff00;
dib->dibSection.dsBitfields[2] = (bi->biCompression == BI_BITFIELDS) ? *((DWORD *)bmi->bmiColors + 2) : 0x0000ff;
break;
}
dib->dibSection.dshSection = section;
dib->dibSection.dsOffset = offset;
dib->status = DIB_Status_None;
dib->nColorMap = nColorMap;
dib->colorMap = colorMap;
}
/* Create Device Dependent Bitmap and add DIB pointer */
if (dib)
{
res = CreateDIBitmap(physDev->hdc, bi, 0, NULL, bmi, usage);
if (res)
{
bmp = (BITMAPOBJ *) GDI_GetObjPtr(res, BITMAP_MAGIC);
if (bmp) bmp->dib = (DIBSECTION *) dib;
}
}
/* Create XImage */
if (dib && bmp)
{
wine_tsx11_lock();
#ifdef HAVE_LIBXXSHM
if (XShmQueryExtension(gdi_display) &&
(dib->image = X11DRV_XShmCreateImage( bm.bmWidth, effHeight,
bmp->bitmap.bmBitsPixel, &dib->shminfo )) )
{
; /* Created Image */
} else {
dib->image = X11DRV_DIB_CreateXImage( bm.bmWidth, effHeight, bmp->bitmap.bmBitsPixel );
dib->shminfo.shmid = -1;
}
#else
dib->image = X11DRV_DIB_CreateXImage( bm.bmWidth, effHeight, bmp->bitmap.bmBitsPixel );
#endif
wine_tsx11_unlock();
}
/* Clean up in case of errors */
if (!res || !bmp || !dib || !bm.bmBits || (bm.bmBitsPixel <= 8 && !colorMap))
{
TRACE("got an error res=%p, bmp=%p, dib=%p, bm.bmBits=%p\n",
res, bmp, dib, bm.bmBits);
if (bm.bmBits)
{
if (section)
UnmapViewOfFile(mapBits), bm.bmBits = NULL;
else if (!offset)
VirtualFree(bm.bmBits, 0L, MEM_RELEASE), bm.bmBits = NULL;
}
if (dib && dib->image) { XDestroyImage(dib->image); dib->image = NULL; }
if (colorMap) { HeapFree(GetProcessHeap(), 0, colorMap); colorMap = NULL; }
if (dib) { HeapFree(GetProcessHeap(), 0, dib); dib = NULL; }
if (bmp) { GDI_ReleaseObj(res); bmp = NULL; }
if (res) { DeleteObject(res); res = 0; }
}
else if (bm.bmBits)
{
extern BOOL VIRTUAL_SetFaultHandler(LPCVOID addr, BOOL (*proc)(LPVOID, LPCVOID), LPVOID arg);
/* Install fault handler, if possible */
InitializeCriticalSection(&(dib->lock));
if (VIRTUAL_SetFaultHandler(bm.bmBits, X11DRV_DIB_FaultHandler, (LPVOID)res))
{
X11DRV_DIB_DoProtectDIBSection( bmp, PAGE_READWRITE );
if (dib) dib->status = DIB_Status_AppMod;
}
}
/* Return BITMAP handle and storage location */
if (bmp) GDI_ReleaseObj(res);
if (bm.bmBits && bits) *bits = bm.bmBits;
return res;
}
/***********************************************************************
* X11DRV_DIB_DeleteDIBSection
*/
void X11DRV_DIB_DeleteDIBSection(BITMAPOBJ *bmp)
{
X11DRV_DIBSECTION *dib = (X11DRV_DIBSECTION *) bmp->dib;
if (dib->image)
{
wine_tsx11_lock();
#ifdef HAVE_LIBXXSHM
if (dib->shminfo.shmid != -1)
{
XShmDetach (gdi_display, &(dib->shminfo));
XDestroyImage (dib->image);
shmdt (dib->shminfo.shmaddr);
dib->shminfo.shmid = -1;
}
else
#endif
XDestroyImage( dib->image );
wine_tsx11_unlock();
}
if (dib->colorMap)
HeapFree(GetProcessHeap(), 0, dib->colorMap);
DeleteCriticalSection(&(dib->lock));
}
/***********************************************************************
* SetDIBColorTable (X11DRV.@)
*/
UINT X11DRV_SetDIBColorTable( X11DRV_PDEVICE *physDev, UINT start, UINT count, const RGBQUAD *colors )
{
BITMAPOBJ * bmp;
X11DRV_DIBSECTION *dib;
UINT ret = 0;
HBITMAP hBitmap = GetCurrentObject( physDev->hdc, OBJ_BITMAP );
if (!(bmp = (BITMAPOBJ*)GDI_GetObjPtr( hBitmap, BITMAP_MAGIC ))) return 0;
dib = (X11DRV_DIBSECTION *) bmp->dib;
if (dib && dib->colorMap) {
UINT end = count + start;
if (end > dib->nColorMap) end = dib->nColorMap;
/*
* Changing color table might change the mapping between
* DIB colors and X11 colors and thus alter the visible state
* of the bitmap object.
*/
X11DRV_DIB_Lock(bmp, DIB_Status_AppMod, FALSE);
X11DRV_DIB_GenColorMap( physDev, dib->colorMap, DIB_RGB_COLORS,
dib->dibSection.dsBm.bmBitsPixel,
TRUE, colors, start, end );
X11DRV_DIB_Unlock(bmp, TRUE);
ret = end - start;
}
GDI_ReleaseObj( hBitmap );
return ret;
}
/***********************************************************************
* GetDIBColorTable (X11DRV.@)
*/
UINT X11DRV_GetDIBColorTable( X11DRV_PDEVICE *physDev, UINT start, UINT count, RGBQUAD *colors )
{
BITMAPOBJ * bmp;
X11DRV_DIBSECTION *dib;
UINT ret = 0;
HBITMAP hBitmap = GetCurrentObject( physDev->hdc, OBJ_BITMAP );
if (!(bmp = (BITMAPOBJ*)GDI_GetObjPtr( hBitmap, BITMAP_MAGIC ))) return 0;
dib = (X11DRV_DIBSECTION *) bmp->dib;
if (dib && dib->colorMap) {
UINT i, end = count + start;
if (end > dib->nColorMap) end = dib->nColorMap;
for (i = start; i < end; i++,colors++) {
COLORREF col = X11DRV_PALETTE_ToLogical( dib->colorMap[i] );
colors->rgbBlue = GetBValue(col);
colors->rgbGreen = GetGValue(col);
colors->rgbRed = GetRValue(col);
colors->rgbReserved = 0;
}
ret = end-start;
}
GDI_ReleaseObj( hBitmap );
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, 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.
* If bDeletePixmap is TRUE, the Pixmap passed in is deleted after the conversion.
*/
HGLOBAL X11DRV_DIB_CreateDIBFromPixmap(Pixmap pixmap, HDC hdc, BOOL bDeletePixmap)
{
HBITMAP hBmp = 0;
BITMAPOBJ *pBmp = NULL;
HGLOBAL hPackedDIB = 0;
/* Allocates an HBITMAP which references the Pixmap passed to us */
hBmp = X11DRV_BITMAP_CreateBitmapHeaderFromPixmap(hdc, pixmap);
if (!hBmp)
{
TRACE("\tCould not create bitmap header for Pixmap\n");
goto END;
}
/*
* 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);
/* Get a pointer to the BITMAPOBJ structure */
pBmp = (BITMAPOBJ *)GDI_GetObjPtr( hBmp, BITMAP_MAGIC );
/* We can now get rid of the HBITMAP wrapper we created earlier.
* Note: Simply calling DeleteObject will free the embedded Pixmap as well.
*/
if (!bDeletePixmap)
{
/* Clear the physBitmap to prevent the Pixmap from being deleted by DeleteObject */
pBmp->physBitmap = NULL;
pBmp->funcs = NULL;
}
GDI_ReleaseObj( hBmp );
DeleteObject(hBmp);
END:
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 = None;
HBITMAP hBmp = 0;
BITMAPOBJ *pBmp = NULL;
LPBYTE pPackedDIB = NULL;
LPBITMAPINFO pbmi = NULL;
LPBITMAPINFOHEADER pbmiHeader = NULL;
LPBYTE pbits = NULL;
/* Get a pointer to the packed DIB's data */
pPackedDIB = (LPBYTE)GlobalLock(hPackedDIB);
pbmiHeader = (LPBITMAPINFOHEADER)pPackedDIB;
pbmi = (LPBITMAPINFO)pPackedDIB;
pbits = (LPBYTE)(pPackedDIB
+ X11DRV_DIB_BitmapInfoSize( (LPBITMAPINFO)pbmiHeader, DIB_RGB_COLORS ));
/* Create a DDB from the DIB */
hBmp = CreateDIBitmap(hdc,
pbmiHeader,
CBM_INIT,
(LPVOID)pbits,
pbmi,
DIB_RGB_COLORS);
GlobalUnlock(hPackedDIB);
TRACE("CreateDIBitmap returned %p\n", hBmp);
/* Retrieve the internal Pixmap from the DDB */
pBmp = (BITMAPOBJ *) GDI_GetObjPtr( hBmp, BITMAP_MAGIC );
pixmap = (Pixmap)pBmp->physBitmap;
/* clear the physBitmap so that we can steal its pixmap */
pBmp->physBitmap = NULL;
pBmp->funcs = NULL;
/* Delete the DDB we created earlier now that we have stolen its pixmap */
GDI_ReleaseObj( hBmp );
DeleteObject(hBmp);
TRACE("\tReturning Pixmap %ld\n", pixmap);
return pixmap;
}