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Sweden-Number/graphics/x11drv/dib.c

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/*
* X11DRV device-independent bitmaps
*
* Copyright 1993,1994 Alexandre Julliard
*/
#include "config.h"
#ifndef X_DISPLAY_MISSING
#include "ts_xlib.h"
#include "ts_xutil.h"
#include "wintypes.h"
#include "bitmap.h"
#include "x11drv.h"
#include "debug.h"
#include "dc.h"
#include "color.h"
#include "callback.h"
#include "xmalloc.h"
static int bitmapDepthTable[] = { 8, 1, 32, 16, 24, 15, 4, 0 };
static int ximageDepthTable[] = { 0, 0, 0, 0, 0, 0, 0 };
/***********************************************************************
* X11DRV_DIB_Init
*/
BOOL X11DRV_DIB_Init(void)
{
int i;
XImage* testimage;
for( i = 0; bitmapDepthTable[i]; i++ )
{
testimage = TSXCreateImage(display, DefaultVisualOfScreen(X11DRV_GetXScreen()),
bitmapDepthTable[i], ZPixmap, 0, NULL, 1, 1, 32, 20 );
if( testimage ) ximageDepthTable[i] = testimage->bits_per_pixel;
else return FALSE;
TSXDestroyImage(testimage);
}
return TRUE;
}
/***********************************************************************
* X11DRV_DIB_GetXImageWidthBytes
*
* Return the width of an X image in bytes
*/
int X11DRV_DIB_GetXImageWidthBytes( int width, int depth )
{
int i;
if (!ximageDepthTable[0]) {
X11DRV_DIB_Init();
}
for( i = 0; bitmapDepthTable[i] ; i++ )
if( bitmapDepthTable[i] == depth )
return (4 * ((width * ximageDepthTable[i] + 31)/32));
WARN(bitmap, "(%d): Unsupported depth\n", depth );
return (4 * width);
}
/***********************************************************************
* 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( DC *dc, WORD coloruse, WORD depth,
const BITMAPINFO *info, int *nColors )
{
int i, colors;
BOOL isInfo;
WORD *colorPtr;
int *colorMapping;
if ((isInfo = (info->bmiHeader.biSize == sizeof(BITMAPINFOHEADER))))
{
colors = info->bmiHeader.biClrUsed;
if (!colors) colors = 1 << info->bmiHeader.biBitCount;
colorPtr = (WORD *)info->bmiColors;
}
else /* assume BITMAPCOREINFO */
{
colors = 1 << ((BITMAPCOREHEADER *)&info->bmiHeader)->bcBitCount;
colorPtr = (WORD *)((BITMAPCOREINFO *)info)->bmciColors;
}
if (colors > 256)
{
ERR(bitmap, "called with >256 colors!\n");
return NULL;
}
if (!(colorMapping = (int *)HeapAlloc(GetProcessHeap(), 0,
colors * sizeof(int) )))
return NULL;
if (coloruse == DIB_RGB_COLORS)
{
if (isInfo)
{
RGBQUAD * rgb = (RGBQUAD *)colorPtr;
if (depth == 1) /* Monochrome */
for (i = 0; i < colors; i++, rgb++)
colorMapping[i] = (rgb->rgbRed + rgb->rgbGreen +
rgb->rgbBlue > 255*3/2);
else
for (i = 0; i < colors; i++, rgb++)
colorMapping[i] = COLOR_ToPhysical( dc, RGB(rgb->rgbRed,
rgb->rgbGreen,
rgb->rgbBlue));
}
else
{
RGBTRIPLE * rgb = (RGBTRIPLE *)colorPtr;
if (depth == 1) /* Monochrome */
for (i = 0; i < colors; i++, rgb++)
colorMapping[i] = (rgb->rgbtRed + rgb->rgbtGreen +
rgb->rgbtBlue > 255*3/2);
else
for (i = 0; i < colors; i++, rgb++)
colorMapping[i] = COLOR_ToPhysical( dc, RGB(rgb->rgbtRed,
rgb->rgbtGreen,
rgb->rgbtBlue));
}
}
else /* DIB_PAL_COLORS */
{
for (i = 0; i < colors; i++, colorPtr++)
colorMapping[i] = COLOR_ToPhysical( dc, PALETTEINDEX(*colorPtr) );
}
*nColors = colors;
return colorMapping;
}
/***********************************************************************
* X11DRV_DIB_MapColor
*/
int X11DRV_DIB_MapColor( int *physMap, int nPhysMap, int phys )
{
int color;
for (color = 0; color < nPhysMap; color++)
if (physMap[color] == phys)
return color;
WARN(bitmap, "Strange color %08x\n", phys);
return 0;
}
/***********************************************************************
* X11DRV_DIB_SetImageBits_1_Line
*
* Handles a single line of 1 bit data.
*/
static void X11DRV_DIB_SetImageBits_1_Line(DWORD dstwidth, int left, int *colors,
XImage *bmpImage, int h, const BYTE *bits)
{
BYTE pix, extra;
DWORD i, x;
if((extra = (left & 7)) != 0) {
left &= ~7;
dstwidth += extra;
}
bits += left >> 3;
/* FIXME: should avoid putting x<left pixels (minor speed issue) */
for (i = dstwidth/8, x = left; i > 0; i--)
{
pix = *bits++;
XPutPixel( bmpImage, x++, h, colors[pix >> 7] );
XPutPixel( bmpImage, x++, h, colors[(pix >> 6) & 1] );
XPutPixel( bmpImage, x++, h, colors[(pix >> 5) & 1] );
XPutPixel( bmpImage, x++, h, colors[(pix >> 4) & 1] );
XPutPixel( bmpImage, x++, h, colors[(pix >> 3) & 1] );
XPutPixel( bmpImage, x++, h, colors[(pix >> 2) & 1] );
XPutPixel( bmpImage, x++, h, colors[(pix >> 1) & 1] );
XPutPixel( bmpImage, x++, h, colors[pix & 1] );
}
pix = *bits;
switch(dstwidth & 7)
{
case 7: XPutPixel( bmpImage, x++, h, colors[pix >> 7] ); pix <<= 1;
case 6: XPutPixel( bmpImage, x++, h, colors[pix >> 7] ); pix <<= 1;
case 5: XPutPixel( bmpImage, x++, h, colors[pix >> 7] ); pix <<= 1;
case 4: XPutPixel( bmpImage, x++, h, colors[pix >> 7] ); pix <<= 1;
case 3: XPutPixel( bmpImage, x++, h, colors[pix >> 7] ); pix <<= 1;
case 2: XPutPixel( bmpImage, x++, h, colors[pix >> 7] ); pix <<= 1;
case 1: XPutPixel( bmpImage, x++, h, colors[pix >> 7] );
}
}
/***********************************************************************
* X11DRV_DIB_SetImageBits_1
*
* SetDIBits for a 1-bit deep DIB.
*/
static void X11DRV_DIB_SetImageBits_1( int lines, const BYTE *srcbits,
DWORD srcwidth, DWORD dstwidth, int left,
int *colors, XImage *bmpImage )
{
int h;
/* 32 bit aligned */
DWORD linebytes = ((srcwidth + 31) & ~31) / 8;
if (lines > 0) {
for (h = lines-1; h >=0; h--) {
X11DRV_DIB_SetImageBits_1_Line(dstwidth, left, colors, bmpImage, h,
srcbits);
srcbits += linebytes;
}
} else {
lines = -lines;
for (h = 0; h < lines; h++) {
X11DRV_DIB_SetImageBits_1_Line(dstwidth, left, colors, bmpImage, h,
srcbits);
srcbits += linebytes;
}
}
}
/***********************************************************************
* 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 i, x;
int h;
const BYTE *bits = srcbits + (left >> 1);
/* 32 bit aligned */
DWORD linebytes = ((srcwidth+7)&~7)/2;
if(left & 1) {
left--;
dstwidth++;
}
if (lines > 0) {
for (h = lines-1; h >= 0; h--) {
for (i = dstwidth/2, x = left; i > 0; i--) {
BYTE pix = *bits++;
XPutPixel( bmpImage, x++, h, colors[pix >> 4] );
XPutPixel( bmpImage, x++, h, colors[pix & 0x0f] );
}
if (dstwidth & 1) XPutPixel( bmpImage, x, h, colors[*bits >> 4] );
srcbits += linebytes;
bits = srcbits + (left >> 1);
}
} else {
lines = -lines;
for (h = 0; h < lines; h++) {
for (i = dstwidth/2, x = left; i > 0; i--) {
BYTE pix = *bits++;
XPutPixel( bmpImage, x++, h, colors[pix >> 4] );
XPutPixel( bmpImage, x++, h, colors[pix & 0x0f] );
}
if (dstwidth & 1) XPutPixel( bmpImage, x, h, colors[*bits >> 4] );
srcbits += linebytes;
bits = srcbits + (left >> 1);
}
}
}
/***********************************************************************
* X11DRV_DIB_GetImageBits_4
*
* GetDIBits for a 4-bit deep DIB.
*/
static void X11DRV_DIB_GetImageBits_4( int lines, BYTE *srcbits,
DWORD srcwidth, DWORD dstwidth, int left,
int *colors, int nColors, XImage *bmpImage )
{
DWORD i, x;
int h;
BYTE *bits = srcbits + (left >> 1);
/* 32 bit aligned */
DWORD linebytes = ((srcwidth+7)&~7)/2;
if(left & 1) {
left--;
dstwidth++;
}
/* FIXME: should avoid putting x<left pixels (minor speed issue) */
if (lines > 0) {
for (h = lines-1; h >= 0; h--) {
for (i = dstwidth/2, x = left; i > 0; i--) {
*bits++ = (X11DRV_DIB_MapColor( colors, nColors,
XGetPixel( bmpImage, x++, h )) << 4)
| (X11DRV_DIB_MapColor( colors, nColors,
XGetPixel( bmpImage, x++, h )) & 0x0f);
}
if (dstwidth & 1)
*bits = (X11DRV_DIB_MapColor( colors, nColors,
XGetPixel( bmpImage, x++, h )) << 4);
srcbits += linebytes;
bits = srcbits + (left >> 1);
}
} else {
lines = -lines;
for (h = 0; h < lines; h++) {
for (i = dstwidth/2, x = left; i > 0; i--) {
*bits++ = (X11DRV_DIB_MapColor( colors, nColors,
XGetPixel( bmpImage, x++, h ))
<< 4)
| (X11DRV_DIB_MapColor( colors, nColors,
XGetPixel( bmpImage, x++, h )) & 0x0f);
}
if (dstwidth & 1)
*bits = (X11DRV_DIB_MapColor( colors, nColors,
XGetPixel( bmpImage, x++, h )) << 4);
srcbits += linebytes;
bits = srcbits + (left >> 1);
}
}
}
/***********************************************************************
* 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, c, length;
const BYTE *begin = bits;
lines--;
while ((int)lines >= 0) {
length = *bits++;
if (length) { /* encoded */
c = *bits++;
while (length--) {
if(x >= width) {
x = 0;
if(--lines < 0)
return;
}
XPutPixel(bmpImage, x++, lines, colors[c >>4]);
if (length) {
length--;
if(x >= width) {
x = 0;
if(--lines < 0)
return;
}
XPutPixel(bmpImage, x++, lines, colors[c & 0xf]);
}
}
} else {
length = *bits++;
switch (length) {
case 0: /* eol */
x = 0;
lines--;
continue;
case 1: /* eopicture */
return;
case 2: /* delta */
x += *bits++;
if(x >= width) {
FIXME(x11drv, "x-delta is too large?\n");
return;
}
lines -= *bits++;
continue;
default: /* absolute */
while (length--) {
c = *bits++;
if(x >= width) {
x = 0;
if(--lines < 0)
return;
}
XPutPixel(bmpImage, x++, lines, colors[c >> 4]);
if (length) {
length--;
if(x >= width) {
x = 0;
if(--lines < 0)
return;
}
XPutPixel(bmpImage, x++, lines, 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,
int *colors, XImage *bmpImage )
{
DWORD x;
int h;
const BYTE *bits = srcbits + left;
/* align to 32 bit */
DWORD linebytes = (srcwidth + 3) & ~3;
dstwidth += left;
if (lines > 0) {
for (h = lines - 1; h >= 0; h--) {
for (x = left; x < dstwidth; x++, bits++) {
XPutPixel( bmpImage, x, h, colors[*bits] );
}
bits = (srcbits += linebytes) + left;
}
} else {
lines = -lines;
for (h = 0; h < lines; h++) {
for (x = left; x < dstwidth; x++, bits++) {
XPutPixel( bmpImage, x, h, colors[*bits] );
}
bits = (srcbits += linebytes) + left;
}
}
}
/***********************************************************************
* X11DRV_DIB_GetImageBits_8
*
* GetDIBits for an 8-bit deep DIB.
*/
static void X11DRV_DIB_GetImageBits_8( int lines, BYTE *srcbits,
DWORD srcwidth, DWORD dstwidth, int left,
int *colors, int nColors, XImage *bmpImage )
{
DWORD x;
int h;
BYTE *bits = srcbits + left;
/* align to 32 bit */
DWORD linebytes = (srcwidth + 3) & ~3;
dstwidth += left;
if (lines > 0) {
for (h = lines - 1; h >= 0; h--) {
for (x = left; x < dstwidth; x++, bits++) {
if ( XGetPixel( bmpImage, x, h ) != colors[*bits] )
*bits = X11DRV_DIB_MapColor( colors, nColors,
XGetPixel( bmpImage, x, h ) );
}
bits = (srcbits += linebytes) + left;
}
} else {
lines = -lines;
for (h = 0; h < lines; h++) {
for (x = left; x < dstwidth; x++, bits++) {
if ( XGetPixel( bmpImage, x, h ) != colors[*bits] )
*bits = X11DRV_DIB_MapColor( colors, nColors,
XGetPixel( bmpImage, x, h ) );
}
bits = (srcbits += linebytes) + left;
}
}
}
/***********************************************************************
* 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]
*/
enum Rle8_EscapeCodes
{
/*
* Apologies for polluting your file's namespace...
*/
RleEol = 0, /* End of line */
RleEnd = 1, /* End of bitmap */
RleDelta = 2 /* Delta */
};
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 line; /* Line #. Starts at lines-1, decreases */
const BYTE *pIn = bits; /* Pointer to current position in bits */
BYTE length; /* The length pf a run */
BYTE color_index; /* index into colors[] as read from bits */
BYTE escape_code; /* See enum Rle8_EscapeCodes.*/
int color; /* value of colour[color_index] */
if (lines == 0) /* Let's hope this doesn't happen. */
return;
/*
* 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;
line = lines-1;
do
{
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
*/
color_index = (*pIn++); /* Get the colour index. */
color = colors[color_index];
while(length--)
XPutPixel(bmpImage, x++, line, color);
}
else
{
/*
* Escape codes (may be an absolute sequence though)
*/
escape_code = (*pIn++);
switch(escape_code)
{
case RleEol: /* =0, end of line */
{
x = 0;
line--;
break;
}
case RleEnd: /* =1, end of bitmap */
{
/*
* 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]
*/
line=-1; /* Cause exit from do loop. */
break;
}
case RleDelta: /* =2, a delta */
{
/*
* Note that deltaing to line 0
* will cause an exit from the loop,
* which may not be what is intended.
* The fact that there is a delta in the bits
* almost certainly implies that there is data
* to follow. You may feel that we should
* jump to the top of the loop to avoid exiting
* in this case.
*
* TODO: Decide what to do here in that case. [JAY]
*/
x += (*pIn++);
line -= (*pIn++);
if (line == 0)
{
TRACE(bitmap, "Delta to last line of bitmap "
"(wrongly?) causes loop exit\n");
}
break;
}
default: /* >2, switch to absolute mode */
{
/*
* Absolute Mode
*/
length = escape_code;
while(length--)
{
color_index = (*pIn++);
XPutPixel(bmpImage, x++, line,
colors[color_index]);
}
/*
* 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 */
} /* process either an encoded sequence or an escape sequence */
/* We expect to come here more than once per line. */
} while (line >= 0); /* Do this until the bitmap is filled */
/*
* Everybody comes here at the end.
* Check how we exited the loop and print a message if it's a bit odd.
* [JAY]
*/
if ( (*(pIn-2) != 0/*escape*/) || (*(pIn-1)!= RleEnd) )
{
TRACE(bitmap, "End-of-bitmap "
"without (strictly) proper escape code. Last two "
"bytes were: %02X %02X.\n",
(int)*(pIn-2),
(int)*(pIn-1));
}
}
/***********************************************************************
* 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,
DC *dc, XImage *bmpImage )
{
DWORD x;
LPWORD ptr;
WORD val;
int h;
BYTE r, g, b;
/* align to 32 bit */
DWORD linebytes = (srcwidth * 2 + 3) & ~3;
dstwidth += left;
ptr = (LPWORD) srcbits + left;
if (lines > 0) {
for (h = lines - 1; h >= 0; h--) {
for (x = left; x < dstwidth; x++, ptr++) {
val = *ptr;
r = (BYTE) ((val & 0x7c00) >> 7);
g = (BYTE) ((val & 0x03e0) >> 2);
b = (BYTE) ((val & 0x001f) << 3);
XPutPixel( bmpImage, x, h,
COLOR_ToPhysical(dc, RGB(r,g,b)) );
}
ptr = (LPWORD) (srcbits += linebytes) + left;
}
} else {
lines = -lines;
for (h = 0; h < lines; h++) {
for (x = left; x < dstwidth; x++, ptr++) {
val = *ptr;
r = (BYTE) ((val & 0x7c00) >> 7);
g = (BYTE) ((val & 0x03e0) >> 2);
b = (BYTE) ((val & 0x001f) << 3);
XPutPixel( bmpImage, x, h,
COLOR_ToPhysical(dc, RGB(r,g,b)) );
}
ptr = (LPWORD) (srcbits += linebytes) + left;
}
}
}
/***********************************************************************
* X11DRV_DIB_GetImageBits_16
*
* GetDIBits for an 16-bit deep DIB.
*/
static void X11DRV_DIB_GetImageBits_16( int lines, BYTE *srcbits,
DWORD srcwidth, DWORD dstwidth, int left,
XImage *bmpImage )
{
DWORD x;
LPWORD ptr;
int h;
BYTE r, g, b;
/* align to 32 bit */
DWORD linebytes = (srcwidth * 2 + 3) & ~3;
dstwidth += left;
ptr = (LPWORD) srcbits + left;
if (lines > 0) {
for (h = lines - 1; h >= 0; h--)
{
for (x = left; x < dstwidth; x++, ptr++)
{
COLORREF pixel = COLOR_ToLogical( XGetPixel( bmpImage, x, h ) );
r = (BYTE) GetRValue(pixel);
g = (BYTE) GetGValue(pixel);
b = (BYTE) GetBValue(pixel);
*ptr = ( ((r << 7) & 0x7c00) | ((g << 2) & 0x03e0) | ((b >> 3) & 0x001f) );
}
ptr = (LPWORD) (srcbits += linebytes) + left;
}
} else {
lines = -lines;
for (h = 0; h < lines; h++)
{
for (x = left; x < dstwidth; x++, ptr++)
{
COLORREF pixel = COLOR_ToLogical( XGetPixel( bmpImage, x, h ) );
r = (BYTE) GetRValue(pixel);
g = (BYTE) GetGValue(pixel);
b = (BYTE) GetBValue(pixel);
*ptr = ( ((r << 7) & 0x7c00) | ((g << 2) & 0x03e0) | ((b >> 3) & 0x001f) );
}
ptr = (LPWORD) (srcbits += linebytes) + left;
}
}
}
/***********************************************************************
* 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,
DC *dc, XImage *bmpImage )
{
DWORD x;
const BYTE *bits = srcbits + left * 3;
int h;
/* align to 32 bit */
DWORD linebytes = (srcwidth * 3 + 3) & ~3;
dstwidth += left;
/* "bits" order is reversed for some reason */
if (lines > 0) {
for (h = lines - 1; h >= 0; h--) {
for (x = left; x < dstwidth; x++, bits += 3) {
XPutPixel( bmpImage, x, h,
COLOR_ToPhysical(dc, RGB(bits[2],bits[1],bits[0])));
}
bits = (srcbits += linebytes) + left * 3;
}
} else {
lines = -lines;
for (h = 0; h < lines; h++) {
for (x = left; x < dstwidth; x++, bits += 3) {
XPutPixel( bmpImage, x, h,
COLOR_ToPhysical(dc, RGB(bits[2],bits[1],bits[0])));
}
bits = (srcbits += linebytes) + left * 3;
}
}
}
/***********************************************************************
* X11DRV_DIB_GetImageBits_24
*
* GetDIBits for an 24-bit deep DIB.
*/
static void X11DRV_DIB_GetImageBits_24( int lines, BYTE *srcbits,
DWORD srcwidth, DWORD dstwidth, int left,
XImage *bmpImage )
{
DWORD x;
int h;
BYTE *bits = srcbits + (left * 3);
/* align to 32 bit */
DWORD linebytes = (srcwidth * 3 + 3) & ~3;
dstwidth += left;
if (lines > 0) {
for (h = lines - 1; h >= 0; h--)
{
for (x = left; x < dstwidth; x++, bits += 3)
{
COLORREF pixel = COLOR_ToLogical( XGetPixel( bmpImage, x, h ) );
bits[0] = GetRValue(pixel);
bits[1] = GetGValue(pixel);
bits[2] = GetBValue(pixel);
}
bits = (srcbits += linebytes) + (left * 3);
}
} else {
lines = -lines;
for (h = 0; h < lines; h++)
{
for (x = left; x < dstwidth; x++, bits += 3)
{
COLORREF pixel = COLOR_ToLogical( XGetPixel( bmpImage, x, h ) );
bits[0] = GetRValue(pixel);
bits[1] = GetGValue(pixel);
bits[2] = GetBValue(pixel);
}
bits = (srcbits += linebytes) + (left * 3);
}
}
}
/***********************************************************************
* 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,
DC *dc, XImage *bmpImage )
{
DWORD x;
const BYTE *bits = srcbits + left * 4;
int h;
DWORD linebytes = (srcwidth * 4);
dstwidth += left;
if (lines > 0) {
for (h = lines - 1; h >= 0; h--) {
for (x = left; x < dstwidth; x++, bits += 4) {
XPutPixel( bmpImage, x, h,
COLOR_ToPhysical(dc, RGB(bits[2],bits[1],bits[0])));
}
bits = (srcbits += linebytes) + left * 4;
}
} else {
lines = -lines;
for (h = 0; h < lines; h++) {
for (x = left; x < dstwidth; x++, bits += 4) {
XPutPixel( bmpImage, x, h,
COLOR_ToPhysical(dc, RGB(bits[2],bits[1],bits[0])));
}
bits = (srcbits += linebytes) + left * 4;
}
}
}
/***********************************************************************
* X11DRV_DIB_GetImageBits_32
*
* GetDIBits for an 32-bit deep DIB.
*/
static void X11DRV_DIB_GetImageBits_32( int lines, BYTE *srcbits,
DWORD srcwidth, DWORD dstwidth, int left,
XImage *bmpImage )
{
DWORD x;
int h;
BYTE *bits = srcbits + (left * 4);
/* align to 32 bit */
DWORD linebytes = (srcwidth * 4);
dstwidth += left;
if (lines > 0) {
for (h = lines - 1; h >= 0; h--)
{
for (x = left; x < dstwidth; x++, bits += 4)
{
COLORREF pixel = COLOR_ToLogical( XGetPixel( bmpImage, x, h ) );
bits[0] = GetRValue(pixel);
bits[1] = GetGValue(pixel);
bits[2] = GetBValue(pixel);
}
bits = (srcbits += linebytes) + (left * 4);
}
} else {
lines = -lines;
for (h = 0; h < lines; h++)
{
for (x = left; x < dstwidth; x++, bits += 4)
{
COLORREF pixel = COLOR_ToLogical( XGetPixel( bmpImage, x, h ) );
bits[0] = GetRValue(pixel);
bits[1] = GetGValue(pixel);
bits[2] = GetBValue(pixel);
}
bits = (srcbits += linebytes) + (left * 4);
}
}
}
/***********************************************************************
* X11DRV_DIB_SetImageBits
*
* Transfer the bits to an X image.
* Helper function for SetDIBits() and SetDIBitsToDevice().
* The Xlib critical section must be entered before calling this function.
*/
int X11DRV_DIB_SetImageBits( const DIB_SETIMAGEBITS_DESCR *descr )
{
int lines = descr->lines >= 0 ? descr->lines : -descr->lines;
XImage *bmpImage;
if ( descr->dc && descr->dc->w.flags & DC_DIRTY )
CLIPPING_UpdateGCRegion( descr->dc );
if (descr->image)
bmpImage = descr->image;
else {
bmpImage = XCreateImage( display,
DefaultVisualOfScreen(X11DRV_GetXScreen()),
descr->depth, ZPixmap, 0, NULL,
descr->infoWidth, lines, 32, 0 );
bmpImage->data = xcalloc( bmpImage->bytes_per_line * lines );
}
/* Transfer the pixels */
switch(descr->infoBpp)
{
case 1:
X11DRV_DIB_SetImageBits_1( descr->lines, descr->bits, descr->infoWidth,
descr->width, descr->xSrc, descr->colorMap,
bmpImage );
break;
case 4:
if (descr->compression)
X11DRV_DIB_SetImageBits_RLE4( descr->lines, descr->bits,
descr->infoWidth, descr->width,
descr->xSrc, descr->colorMap,
bmpImage );
else
X11DRV_DIB_SetImageBits_4( descr->lines, descr->bits,
descr->infoWidth, descr->width,
descr->xSrc, descr->colorMap,
bmpImage );
break;
case 8:
if (descr->compression)
X11DRV_DIB_SetImageBits_RLE8( descr->lines, descr->bits,
descr->infoWidth, descr->width,
descr->xSrc,
descr->colorMap, bmpImage );
else
X11DRV_DIB_SetImageBits_8( descr->lines, descr->bits,
descr->infoWidth, descr->width,
descr->xSrc, descr->colorMap,
bmpImage );
break;
case 15:
case 16:
X11DRV_DIB_SetImageBits_16( descr->lines, descr->bits,
descr->infoWidth, descr->width,
descr->xSrc, descr->dc, bmpImage);
break;
case 24:
X11DRV_DIB_SetImageBits_24( descr->lines, descr->bits,
descr->infoWidth, descr->width,
descr->xSrc, descr->dc, bmpImage );
break;
case 32:
X11DRV_DIB_SetImageBits_32( descr->lines, descr->bits,
descr->infoWidth, descr->width,
descr->xSrc, descr->dc, bmpImage);
break;
default:
WARN(bitmap, "(%d): Invalid depth\n", descr->infoBpp );
break;
}
XPutImage( display, descr->drawable, descr->gc, bmpImage,
descr->xSrc, descr->ySrc, descr->xDest, descr->yDest,
descr->width, descr->height );
if (!descr->image) XDestroyImage( bmpImage );
return lines;
}
/***********************************************************************
* X11DRV_DIB_GetImageBits
*
* Transfer the bits from an X image.
* The Xlib critical section must be entered before calling this function.
*/
int X11DRV_DIB_GetImageBits( const DIB_SETIMAGEBITS_DESCR *descr )
{
int lines = descr->lines >= 0 ? descr->lines : -descr->lines;
XImage *bmpImage;
if (descr->image)
bmpImage = descr->image;
else {
bmpImage = XCreateImage( display,
DefaultVisualOfScreen(X11DRV_GetXScreen()),
descr->depth, ZPixmap, 0, NULL,
descr->infoWidth, lines, 32, 0 );
bmpImage->data = xcalloc( bmpImage->bytes_per_line * lines );
}
XGetSubImage( display, descr->drawable, descr->xDest, descr->yDest,
descr->width, descr->height, AllPlanes, ZPixmap,
bmpImage, descr->xSrc, descr->ySrc );
/* Transfer the pixels */
switch(descr->infoBpp)
{
case 1:
FIXME(bitmap, "Depth 1 not yet supported!\n");
break;
case 4:
if (descr->compression)
FIXME(bitmap, "Compression not yet supported!\n");
else
X11DRV_DIB_GetImageBits_4( descr->lines,
(LPVOID)descr->bits, descr->infoWidth,
descr->width, descr->xSrc,
descr->colorMap, descr->nColorMap,
bmpImage );
break;
case 8:
if (descr->compression)
FIXME(bitmap, "Compression not yet supported!\n");
else
X11DRV_DIB_GetImageBits_8( descr->lines, (LPVOID)descr->bits,
descr->infoWidth, descr->width,
descr->xSrc, descr->colorMap,
descr->nColorMap, bmpImage );
break;
case 15:
case 16:
X11DRV_DIB_GetImageBits_16( descr->lines, (LPVOID)descr->bits,
descr->infoWidth,
descr->width, descr->xSrc, bmpImage );
break;
case 24:
X11DRV_DIB_GetImageBits_24( descr->lines, (LPVOID)descr->bits,
descr->infoWidth,
descr->width, descr->xSrc, bmpImage );
break;
case 32:
X11DRV_DIB_GetImageBits_32( descr->lines, (LPVOID)descr->bits,
descr->infoWidth,
descr->width, descr->xSrc, bmpImage );
break;
default:
WARN(bitmap, "(%d): Invalid depth\n", descr->infoBpp );
break;
}
if (!descr->image) XDestroyImage( bmpImage );
return lines;
}
/*************************************************************************
* X11DRV_SetDIBitsToDevice
*
*/
INT X11DRV_SetDIBitsToDevice( DC *dc, INT xDest, INT yDest, DWORD cx,
DWORD cy, INT xSrc, INT ySrc,
UINT startscan, UINT lines, LPCVOID bits,
const BITMAPINFO *info, UINT coloruse )
{
DIB_SETIMAGEBITS_DESCR descr;
DWORD width, oldcy = cy;
INT result;
int height, tmpheight;
X11DRV_PDEVICE *physDev = (X11DRV_PDEVICE *)dc->physDev;
if (DIB_GetBitmapInfo( &info->bmiHeader, &width, &height,
&descr.infoBpp, &descr.compression ) == -1)
return 0;
tmpheight = height;
if (height < 0) height = -height;
if (!lines || (startscan >= height)) return 0;
if (startscan + lines > height) lines = height - startscan;
if (ySrc < startscan) ySrc = startscan;
else if (ySrc >= startscan + lines) return 0;
if (xSrc >= width) return 0;
if (ySrc + cy >= startscan + lines) cy = startscan + lines - ySrc;
if (xSrc + cx >= width) cx = width - xSrc;
if (!cx || !cy) return 0;
X11DRV_SetupGCForText( dc ); /* To have the correct colors */
TSXSetFunction(display, physDev->gc, X11DRV_XROPfunction[dc->w.ROPmode-1]);
if (descr.infoBpp <= 8)
{
descr.colorMap = X11DRV_DIB_BuildColorMap( dc, coloruse,
dc->w.bitsPerPixel,
info, &descr.nColorMap );
if (!descr.colorMap)
return 0;
}
descr.dc = dc;
descr.bits = bits;
descr.image = NULL;
descr.lines = tmpheight >= 0 ? lines : -lines;
descr.infoWidth = width;
descr.depth = dc->w.bitsPerPixel;
descr.drawable = physDev->drawable;
descr.gc = physDev->gc;
descr.xSrc = xSrc;
descr.ySrc = tmpheight >= 0 ? lines-(ySrc-startscan)-cy+(oldcy-cy)
: ySrc - startscan;
descr.xDest = dc->w.DCOrgX + XLPTODP( dc, xDest );
descr.yDest = dc->w.DCOrgY + YLPTODP( dc, yDest ) +
(tmpheight >= 0 ? oldcy-cy : 0);
descr.width = cx;
descr.height = cy;
EnterCriticalSection( &X11DRV_CritSection );
result = CALL_LARGE_STACK( X11DRV_DIB_SetImageBits, &descr );
LeaveCriticalSection( &X11DRV_CritSection );
HeapFree(GetProcessHeap(), 0, descr.colorMap);
return result;
}
#endif /* !defined(X_DISPLAY_MISSING) */
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