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Sweden-Number/graphics/x11drv/bitmap.c

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/*
* X11DRV bitmap objects
*
* Copyright 1993 Alexandre Julliard
*/
#include <stdio.h>
#include <stdlib.h>
#include "ts_xlib.h"
#include "ts_xutil.h"
#include "gdi.h"
#include "callback.h"
#include "dc.h"
#include "bitmap.h"
#include "heap.h"
#include "debug.h"
#include "xmalloc.h"
#include "x11drv.h"
/* GCs used for B&W and color bitmap operations */
GC BITMAP_monoGC = 0, BITMAP_colorGC = 0;
/***********************************************************************
* X11DRV_BITMAP_Init
*/
BOOL32 X11DRV_BITMAP_Init(void)
{
Pixmap tmpPixmap;
/* Create the necessary GCs */
if ((tmpPixmap = TSXCreatePixmap( display, rootWindow, 1, 1, 1 )))
{
BITMAP_monoGC = TSXCreateGC( display, tmpPixmap, 0, NULL );
TSXSetGraphicsExposures( display, BITMAP_monoGC, False );
TSXFreePixmap( display, tmpPixmap );
}
if (screenDepth != 1)
{
if ((tmpPixmap = TSXCreatePixmap(display, rootWindow, 1,1,screenDepth)))
{
BITMAP_colorGC = TSXCreateGC( display, tmpPixmap, 0, NULL );
TSXSetGraphicsExposures( display, BITMAP_colorGC, False );
TSXFreePixmap( display, tmpPixmap );
}
}
return TRUE;
}
/***********************************************************************
* X11DRV_BITMAP_SelectObject
*/
HBITMAP32 X11DRV_BITMAP_SelectObject( DC * dc, HBITMAP32 hbitmap,
BITMAPOBJ * bmp )
{
HRGN32 hrgn;
HBITMAP32 prevHandle = dc->w.hBitmap;
X11DRV_PHYSBITMAP *pbitmap;
X11DRV_PDEVICE *physDev = (X11DRV_PDEVICE *)dc->physDev;
if (!(dc->w.flags & DC_MEMORY)) return 0;
if(!bmp->DDBitmap)
if(!X11DRV_CreateBitmap(hbitmap))
return 0;
if(bmp->DDBitmap->funcs != dc->funcs) {
WARN(x11drv, "Trying to select non-X11 DDB into an X11 dc\n");
return 0;
}
pbitmap = bmp->DDBitmap->physBitmap;
dc->w.totalExtent.left = 0;
dc->w.totalExtent.top = 0;
dc->w.totalExtent.right = bmp->bitmap.bmWidth;
dc->w.totalExtent.bottom = bmp->bitmap.bmHeight;
if (dc->w.hVisRgn)
SetRectRgn32( dc->w.hVisRgn, 0, 0,
bmp->bitmap.bmWidth, bmp->bitmap.bmHeight );
else
{
hrgn = CreateRectRgn32(0, 0, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight);
if (!hrgn) return 0;
dc->w.hVisRgn = hrgn;
}
physDev->drawable = pbitmap->pixmap;
dc->w.hBitmap = hbitmap;
/* Change GC depth if needed */
if (dc->w.bitsPerPixel != bmp->bitmap.bmBitsPixel)
{
TSXFreeGC( display, physDev->gc );
physDev->gc = TSXCreateGC( display, physDev->drawable, 0, NULL );
dc->w.bitsPerPixel = bmp->bitmap.bmBitsPixel;
DC_InitDC( dc );
}
else CLIPPING_UpdateGCRegion( dc ); /* Just update GC clip region */
return prevHandle;
}
/***********************************************************************
* XPutImage_wrapper
*
* Wrapper to call XPutImage with CALL_LARGE_STACK.
*/
struct XPutImage_descr
{
BITMAPOBJ *bmp;
XImage *image;
INT32 width;
INT32 height;
};
static int XPutImage_wrapper( const struct XPutImage_descr *descr )
{
return XPutImage( display,
((X11DRV_PHYSBITMAP *)descr->bmp->DDBitmap->physBitmap)->pixmap,
BITMAP_GC(descr->bmp),
descr->image, 0, 0, 0, 0, descr->width, descr->height );
}
/***************************************************************************
*
* X11DRV_AllocBitmap
*
* Allocate DDBitmap and physBitmap
*
*/
X11DRV_PHYSBITMAP *X11DRV_AllocBitmap( BITMAPOBJ *bmp )
{
X11DRV_PHYSBITMAP *pbitmap;
if(!(bmp->DDBitmap = HeapAlloc(GetProcessHeap(), 0, sizeof(DDBITMAP)))) {
WARN(x11drv, "Can't alloc DDBITMAP\n");
return NULL;
}
if(!(pbitmap = HeapAlloc(GetProcessHeap(), 0,sizeof(X11DRV_PHYSBITMAP)))) {
WARN(x11drv, "Can't alloc X11DRV_PHYSBITMAP\n");
HeapFree(GetProcessHeap(), 0, bmp->DDBitmap);
return NULL;
}
bmp->DDBitmap->physBitmap = pbitmap;
bmp->DDBitmap->funcs = DRIVER_FindDriver( "DISPLAY" );
return pbitmap;
}
/****************************************************************************
*
* X11DRV_CreateBitmap
*
* Create a device dependent X11 bitmap
*
* Returns TRUE on success else FALSE
*
*/
BOOL32 X11DRV_CreateBitmap( HBITMAP32 hbitmap )
{
X11DRV_PHYSBITMAP *pbitmap;
BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
if(!bmp) {
WARN(x11drv, "Bad bitmap handle %08x\n", hbitmap);
return FALSE;
}
/* Check parameters */
if (bmp->bitmap.bmPlanes != 1) return 0;
if ((bmp->bitmap.bmBitsPixel != 1) &&
(bmp->bitmap.bmBitsPixel != screenDepth)) {
ERR(x11drv, "Trying to make bitmap with planes=%d, bpp=%d\n",
bmp->bitmap.bmPlanes, bmp->bitmap.bmBitsPixel);
GDI_HEAP_UNLOCK( hbitmap );
return FALSE;
}
TRACE(x11drv, "(%08x) %dx%d %d bpp\n", hbitmap, bmp->bitmap.bmWidth,
bmp->bitmap.bmHeight, bmp->bitmap.bmBitsPixel);
pbitmap = X11DRV_AllocBitmap( bmp );
if(!pbitmap) return FALSE;
/* Create the pixmap */
pbitmap->pixmap = TSXCreatePixmap(display, rootWindow, bmp->bitmap.bmWidth,
bmp->bitmap.bmHeight, bmp->bitmap.bmBitsPixel);
if (!pbitmap->pixmap) {
WARN(x11drv, "Can't create Pixmap\n");
HeapFree(GetProcessHeap(), 0, bmp->DDBitmap->physBitmap);
HeapFree(GetProcessHeap(), 0, bmp->DDBitmap);
GDI_HEAP_UNLOCK( hbitmap );
return FALSE;
}
if (bmp->bitmap.bmBits) /* Set bitmap bits */
X11DRV_BitmapBits( hbitmap, bmp->bitmap.bmBits,
bmp->bitmap.bmHeight * bmp->bitmap.bmWidthBytes,
DDB_SET );
GDI_HEAP_UNLOCK( hbitmap );
return TRUE;
}
/***********************************************************************
* X11DRV_BITMAP_GetXImage
*
* Get an X image for a bitmap. For use with CALL_LARGE_STACK.
*/
XImage *X11DRV_BITMAP_GetXImage( const BITMAPOBJ *bmp )
{
return XGetImage( display,
((X11DRV_PHYSBITMAP *)bmp->DDBitmap->physBitmap)->pixmap,
0, 0, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
AllPlanes, ZPixmap );
}
/***********************************************************************
* X11DRV_GetBitmapBits
*
* RETURNS
* Success: Number of bytes copied
* Failure: 0
*/
static LONG X11DRV_GetBitmapBits(BITMAPOBJ *bmp, void *buffer, LONG count)
{
LONG old_height, height;
XImage *image;
LPBYTE tbuf;
int h, w, pad;
TRACE(x11drv, "(bmp=%p, buffer=%p, count=0x%lx)\n", bmp, buffer, count);
pad = BITMAP_GetPadding(bmp->bitmap.bmWidth, bmp->bitmap.bmBitsPixel);
if (pad == -1)
return 0;
EnterCriticalSection( &X11DRV_CritSection );
/* Hack: change the bitmap height temporarily to avoid */
/* getting unnecessary bitmap rows. */
old_height = bmp->bitmap.bmHeight;
height = bmp->bitmap.bmHeight = count / bmp->bitmap.bmWidthBytes;
image = (XImage *)CALL_LARGE_STACK( X11DRV_BITMAP_GetXImage, bmp );
bmp->bitmap.bmHeight = old_height;
/* copy XImage to 16 bit padded image buffer with real bitsperpixel */
tbuf = buffer;
switch (bmp->bitmap.bmBitsPixel)
{
case 1:
for (h=0;h<height;h++)
{
*tbuf = 0;
for (w=0;w<bmp->bitmap.bmWidth;w++)
{
if ((w%8) == 0)
*tbuf = 0;
*tbuf |= XGetPixel(image,w,h)<<(7-(w&7));
if ((w&7) == 7) ++tbuf;
}
tbuf += pad;
}
break;
case 4:
for (h=0;h<height;h++)
{
for (w=0;w<bmp->bitmap.bmWidth;w++)
{
if (!(w & 1)) *tbuf = XGetPixel( image, w, h) << 4;
else *tbuf++ |= XGetPixel( image, w, h) & 0x0f;
}
tbuf += pad;
}
break;
case 8:
for (h=0;h<height;h++)
{
for (w=0;w<bmp->bitmap.bmWidth;w++)
*tbuf++ = XGetPixel(image,w,h);
tbuf += pad;
}
break;
case 15:
case 16:
for (h=0;h<height;h++)
{
for (w=0;w<bmp->bitmap.bmWidth;w++)
{
long pixel = XGetPixel(image,w,h);
*tbuf++ = pixel & 0xff;
*tbuf++ = (pixel>>8) & 0xff;
}
}
break;
case 24:
for (h=0;h<height;h++)
{
for (w=0;w<bmp->bitmap.bmWidth;w++)
{
long pixel = XGetPixel(image,w,h);
*tbuf++ = pixel & 0xff;
*tbuf++ = (pixel>> 8) & 0xff;
*tbuf++ = (pixel>>16) & 0xff;
}
tbuf += pad;
}
break;
case 32:
for (h=0;h<height;h++)
{
for (w=0;w<bmp->bitmap.bmWidth;w++)
{
long pixel = XGetPixel(image,w,h);
*tbuf++ = pixel & 0xff;
*tbuf++ = (pixel>> 8) & 0xff;
*tbuf++ = (pixel>>16) & 0xff;
*tbuf++ = (pixel>>24) & 0xff;
}
tbuf += pad;
}
break;
default:
FIXME(x11drv, "Unhandled bits:%d\n", bmp->bitmap.bmBitsPixel);
}
XDestroyImage( image );
LeaveCriticalSection( &X11DRV_CritSection );
return count;
}
/******************************************************************************
* X11DRV_SetBitmapBits
*
* RETURNS
* Success: Number of bytes used in setting the bitmap bits
* Failure: 0
*/
static LONG X11DRV_SetBitmapBits(BITMAPOBJ *bmp, void *bits, LONG count)
{
struct XPutImage_descr descr;
LONG height;
XImage *image;
LPBYTE sbuf;
int w, h, pad;
TRACE(x11drv, "(bmp=%p, bits=%p, count=0x%lx)\n", bmp, bits, count);
pad = BITMAP_GetPadding(bmp->bitmap.bmWidth, bmp->bitmap.bmBitsPixel);
if (pad == -1)
return 0;
sbuf = (LPBYTE)bits;
height = count / bmp->bitmap.bmWidthBytes;
EnterCriticalSection( &X11DRV_CritSection );
image = XCreateImage( display, DefaultVisualOfScreen(screen),
bmp->bitmap.bmBitsPixel, ZPixmap, 0, NULL,
bmp->bitmap.bmWidth, height, 32, 0 );
image->data = (LPBYTE)xmalloc(image->bytes_per_line * height);
/* copy 16 bit padded image buffer with real bitsperpixel to XImage */
sbuf = (LPBYTE)bits;
switch (bmp->bitmap.bmBitsPixel)
{
case 1:
for (h=0;h<height;h++)
{
for (w=0;w<bmp->bitmap.bmWidth;w++)
{
XPutPixel(image,w,h,(sbuf[0]>>(7-(w&7))) & 1);
if ((w&7) == 7)
sbuf++;
}
sbuf += pad;
}
break;
case 4:
for (h=0;h<height;h++)
{
for (w=0;w<bmp->bitmap.bmWidth;w++)
{
if (!(w & 1)) XPutPixel( image, w, h, *sbuf >> 4 );
else XPutPixel( image, w, h, *sbuf++ & 0xf );
}
sbuf += pad;
}
break;
case 8:
for (h=0;h<height;h++)
{
for (w=0;w<bmp->bitmap.bmWidth;w++)
XPutPixel(image,w,h,*sbuf++);
sbuf += pad;
}
break;
case 15:
case 16:
for (h=0;h<height;h++)
{
for (w=0;w<bmp->bitmap.bmWidth;w++)
{
XPutPixel(image,w,h,sbuf[1]*256+sbuf[0]);
sbuf+=2;
}
}
break;
case 24:
for (h=0;h<height;h++)
{
for (w=0;w<bmp->bitmap.bmWidth;w++)
{
XPutPixel(image,w,h,(sbuf[2]<<16)+(sbuf[1]<<8)+sbuf[0]);
sbuf += 3;
}
sbuf += pad;
}
break;
case 32:
for (h=0;h<height;h++)
{
for (w=0;w<bmp->bitmap.bmWidth;w++)
{
XPutPixel(image,w,h,(sbuf[3]<<24)+(sbuf[2]<<16)+(sbuf[1]<<8)+sbuf[0]);
sbuf += 4;
}
sbuf += pad;
}
break;
default:
FIXME(x11drv, "Unhandled bits:%d\n", bmp->bitmap.bmBitsPixel);
}
descr.bmp = bmp;
descr.image = image;
descr.width = bmp->bitmap.bmWidth;
descr.height = height;
CALL_LARGE_STACK( XPutImage_wrapper, &descr );
XDestroyImage( image ); /* frees image->data too */
LeaveCriticalSection( &X11DRV_CritSection );
return count;
}
/***********************************************************************
* X11DRV_BitmapBits
*/
LONG X11DRV_BitmapBits(HBITMAP32 hbitmap, void *bits, LONG count, WORD flags)
{
BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
LONG ret;
if(!bmp) {
WARN(x11drv, "Bad bitmap handle %08x\n", hbitmap);
return FALSE;
}
if(flags == DDB_GET)
ret = X11DRV_GetBitmapBits(bmp, bits, count);
else if(flags == DDB_SET)
ret = X11DRV_SetBitmapBits(bmp, bits, count);
else {
ERR(x11drv, "Unknown flags value %d\n", flags);
ret = 0;
}
GDI_HEAP_UNLOCK( hbitmap );
return ret;
}
/***********************************************************************
* X11DRV_BITMAP_DeleteObject
*/
BOOL32 X11DRV_BITMAP_DeleteObject( HBITMAP32 hbitmap, BITMAPOBJ * bmp )
{
X11DRV_PHYSBITMAP *pbitmap = bmp->DDBitmap->physBitmap;
TSXFreePixmap( display, pbitmap->pixmap );
HeapFree( GetProcessHeap(), 0, bmp->DDBitmap->physBitmap );
HeapFree( GetProcessHeap(), 0, bmp->DDBitmap );
bmp->DDBitmap = NULL;
return TRUE;
}
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