mirror of
git://source.winehq.org/git/wine.git
synced 2024-10-31 12:54:13 +00:00
608 lines
16 KiB
C
608 lines
16 KiB
C
/*
|
|
* GDI bitmap objects
|
|
*
|
|
* Copyright 1993 Alexandre Julliard
|
|
* 1998 Huw D M Davies
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "wine/winbase16.h"
|
|
#include "gdi.h"
|
|
#include "bitmap.h"
|
|
#include "heap.h"
|
|
#include "global.h"
|
|
#include "debugtools.h"
|
|
#include "wine/winuser16.h"
|
|
|
|
DEFAULT_DEBUG_CHANNEL(bitmap);
|
|
|
|
BITMAP_DRIVER *BITMAP_Driver = NULL;
|
|
|
|
|
|
/***********************************************************************
|
|
* BITMAP_GetWidthBytes
|
|
*
|
|
* Return number of bytes taken by a scanline of 16-bit aligned Windows DDB
|
|
* data.
|
|
*/
|
|
INT BITMAP_GetWidthBytes( INT bmWidth, INT bpp )
|
|
{
|
|
switch(bpp)
|
|
{
|
|
case 1:
|
|
return 2 * ((bmWidth+15) >> 4);
|
|
|
|
case 24:
|
|
bmWidth *= 3; /* fall through */
|
|
case 8:
|
|
return bmWidth + (bmWidth & 1);
|
|
|
|
case 32:
|
|
return bmWidth * 4;
|
|
|
|
case 16:
|
|
case 15:
|
|
return bmWidth * 2;
|
|
|
|
case 4:
|
|
return 2 * ((bmWidth+3) >> 2);
|
|
|
|
default:
|
|
WARN("Unknown depth %d, please report.\n", bpp );
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* CreateUserBitmap16 (GDI.407)
|
|
*/
|
|
HBITMAP16 WINAPI CreateUserBitmap16( INT16 width, INT16 height, UINT16 planes,
|
|
UINT16 bpp, LPCVOID bits )
|
|
{
|
|
return CreateBitmap16( width, height, planes, bpp, bits );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* CreateUserDiscardableBitmap16 (GDI.409)
|
|
*/
|
|
HBITMAP16 WINAPI CreateUserDiscardableBitmap16( WORD dummy,
|
|
INT16 width, INT16 height )
|
|
{
|
|
HDC hdc = CreateDCA( "DISPLAY", NULL, NULL, NULL );
|
|
HBITMAP16 ret = CreateCompatibleBitmap16( hdc, width, height );
|
|
DeleteDC( hdc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreateBitmap16 (GDI.48)
|
|
*/
|
|
HBITMAP16 WINAPI CreateBitmap16( INT16 width, INT16 height, UINT16 planes,
|
|
UINT16 bpp, LPCVOID bits )
|
|
{
|
|
return CreateBitmap( width, height, planes, bpp, bits );
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* CreateBitmap [GDI32.25] Creates a bitmap with the specified info
|
|
*
|
|
* PARAMS
|
|
* width [I] bitmap width
|
|
* height [I] bitmap height
|
|
* planes [I] Number of color planes
|
|
* bpp [I] Number of bits to identify a color
|
|
* bits [I] Pointer to array containing color data
|
|
*
|
|
* RETURNS
|
|
* Success: Handle to bitmap
|
|
* Failure: 0
|
|
*/
|
|
HBITMAP WINAPI CreateBitmap( INT width, INT height, UINT planes,
|
|
UINT bpp, LPCVOID bits )
|
|
{
|
|
BITMAPOBJ *bmp;
|
|
HBITMAP hbitmap;
|
|
|
|
planes = (BYTE)planes;
|
|
bpp = (BYTE)bpp;
|
|
|
|
|
|
/* Check parameters */
|
|
if (!height || !width) return 0;
|
|
if (planes != 1) {
|
|
FIXME("planes = %d\n", planes);
|
|
return 0;
|
|
}
|
|
if (height < 0) height = -height;
|
|
if (width < 0) width = -width;
|
|
|
|
/* Create the BITMAPOBJ */
|
|
if (!(bmp = GDI_AllocObject( sizeof(BITMAPOBJ), BITMAP_MAGIC, &hbitmap ))) return 0;
|
|
|
|
TRACE("%dx%d, %d colors returning %08x\n", width, height,
|
|
1 << (planes*bpp), hbitmap);
|
|
|
|
bmp->size.cx = 0;
|
|
bmp->size.cy = 0;
|
|
bmp->bitmap.bmType = 0;
|
|
bmp->bitmap.bmWidth = width;
|
|
bmp->bitmap.bmHeight = height;
|
|
bmp->bitmap.bmPlanes = planes;
|
|
bmp->bitmap.bmBitsPixel = bpp;
|
|
bmp->bitmap.bmWidthBytes = BITMAP_GetWidthBytes( width, bpp );
|
|
bmp->bitmap.bmBits = NULL;
|
|
|
|
bmp->funcs = NULL;
|
|
bmp->physBitmap = NULL;
|
|
bmp->dib = NULL;
|
|
|
|
if (bits) /* Set bitmap bits */
|
|
SetBitmapBits( hbitmap, height * bmp->bitmap.bmWidthBytes,
|
|
bits );
|
|
GDI_ReleaseObj( hbitmap );
|
|
return hbitmap;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreateCompatibleBitmap16 (GDI.51)
|
|
*/
|
|
HBITMAP16 WINAPI CreateCompatibleBitmap16(HDC16 hdc, INT16 width, INT16 height)
|
|
{
|
|
return CreateCompatibleBitmap( hdc, width, height );
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* CreateCompatibleBitmap [GDI32.30] Creates a bitmap compatible with the DC
|
|
*
|
|
* PARAMS
|
|
* hdc [I] Handle to device context
|
|
* width [I] Width of bitmap
|
|
* height [I] Height of bitmap
|
|
*
|
|
* RETURNS
|
|
* Success: Handle to bitmap
|
|
* Failure: 0
|
|
*/
|
|
HBITMAP WINAPI CreateCompatibleBitmap( HDC hdc, INT width, INT height)
|
|
{
|
|
HBITMAP hbmpRet = 0;
|
|
DC *dc;
|
|
|
|
TRACE("(%04x,%d,%d) = \n", hdc, width, height );
|
|
if (!(dc = DC_GetDCPtr( hdc ))) return 0;
|
|
if ((width >= 0x10000) || (height >= 0x10000)) {
|
|
FIXME("got bad width %d or height %d, please look for reason\n",
|
|
width, height );
|
|
} else {
|
|
/* MS doc says if width or height is 0, return 1-by-1 pixel, monochrome bitmap */
|
|
if (!width || !height)
|
|
hbmpRet = CreateBitmap( 1, 1, 1, 1, NULL );
|
|
else
|
|
hbmpRet = CreateBitmap( width, height, 1, dc->bitsPerPixel, NULL );
|
|
if(dc->funcs->pCreateBitmap)
|
|
dc->funcs->pCreateBitmap( hbmpRet );
|
|
}
|
|
TRACE("\t\t%04x\n", hbmpRet);
|
|
GDI_ReleaseObj(hdc);
|
|
return hbmpRet;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreateBitmapIndirect16 (GDI.49)
|
|
*/
|
|
HBITMAP16 WINAPI CreateBitmapIndirect16( const BITMAP16 * bmp )
|
|
{
|
|
return CreateBitmap16( bmp->bmWidth, bmp->bmHeight, bmp->bmPlanes,
|
|
bmp->bmBitsPixel, PTR_SEG_TO_LIN( bmp->bmBits ) );
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* CreateBitmapIndirect [GDI32.26] Creates a bitmap with the specifies info
|
|
*
|
|
* RETURNS
|
|
* Success: Handle to bitmap
|
|
* Failure: NULL
|
|
*/
|
|
HBITMAP WINAPI CreateBitmapIndirect(
|
|
const BITMAP * bmp) /* [in] Pointer to the bitmap data */
|
|
{
|
|
return CreateBitmap( bmp->bmWidth, bmp->bmHeight, bmp->bmPlanes,
|
|
bmp->bmBitsPixel, bmp->bmBits );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetBitmapBits16 (GDI.74)
|
|
*/
|
|
LONG WINAPI GetBitmapBits16( HBITMAP16 hbitmap, LONG count, LPVOID buffer )
|
|
{
|
|
return GetBitmapBits( hbitmap, count, buffer );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetBitmapBits [GDI32.143] Copies bitmap bits of bitmap to buffer
|
|
*
|
|
* RETURNS
|
|
* Success: Number of bytes copied
|
|
* Failure: 0
|
|
*/
|
|
LONG WINAPI GetBitmapBits(
|
|
HBITMAP hbitmap, /* [in] Handle to bitmap */
|
|
LONG count, /* [in] Number of bytes to copy */
|
|
LPVOID bits) /* [out] Pointer to buffer to receive bits */
|
|
{
|
|
BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
|
|
LONG height, ret;
|
|
|
|
if (!bmp) return 0;
|
|
|
|
/* If the bits vector is null, the function should return the read size */
|
|
if(bits == NULL)
|
|
{
|
|
ret = bmp->bitmap.bmWidthBytes * bmp->bitmap.bmHeight;
|
|
goto done;
|
|
}
|
|
|
|
if (count < 0) {
|
|
WARN("(%ld): Negative number of bytes passed???\n", count );
|
|
count = -count;
|
|
}
|
|
|
|
/* Only get entire lines */
|
|
height = count / bmp->bitmap.bmWidthBytes;
|
|
if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight;
|
|
count = height * bmp->bitmap.bmWidthBytes;
|
|
if (count == 0)
|
|
{
|
|
WARN("Less then one entire line requested\n");
|
|
ret = 0;
|
|
goto done;
|
|
}
|
|
|
|
|
|
TRACE("(%08x, %ld, %p) %dx%d %d colors fetched height: %ld\n",
|
|
hbitmap, count, bits, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
|
|
1 << bmp->bitmap.bmBitsPixel, height );
|
|
|
|
if(bmp->funcs) {
|
|
|
|
TRACE("Calling device specific BitmapBits\n");
|
|
if(bmp->funcs->pBitmapBits)
|
|
ret = bmp->funcs->pBitmapBits(hbitmap, bits, count, DDB_GET);
|
|
else {
|
|
ERR("BitmapBits == NULL??\n");
|
|
ret = 0;
|
|
}
|
|
|
|
} else {
|
|
|
|
if(!bmp->bitmap.bmBits) {
|
|
WARN("Bitmap is empty\n");
|
|
ret = 0;
|
|
} else {
|
|
memcpy(bits, bmp->bitmap.bmBits, count);
|
|
ret = count;
|
|
}
|
|
|
|
}
|
|
done:
|
|
GDI_ReleaseObj( hbitmap );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetBitmapBits16 (GDI.106)
|
|
*/
|
|
LONG WINAPI SetBitmapBits16( HBITMAP16 hbitmap, LONG count, LPCVOID buffer )
|
|
{
|
|
return SetBitmapBits( hbitmap, count, buffer );
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* SetBitmapBits [GDI32.303] Sets bits of color data for a bitmap
|
|
*
|
|
* RETURNS
|
|
* Success: Number of bytes used in setting the bitmap bits
|
|
* Failure: 0
|
|
*/
|
|
LONG WINAPI SetBitmapBits(
|
|
HBITMAP hbitmap, /* [in] Handle to bitmap */
|
|
LONG count, /* [in] Number of bytes in bitmap array */
|
|
LPCVOID bits) /* [in] Address of array with bitmap bits */
|
|
{
|
|
BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
|
|
LONG height, ret;
|
|
|
|
if ((!bmp) || (!bits))
|
|
return 0;
|
|
|
|
if (count < 0) {
|
|
WARN("(%ld): Negative number of bytes passed???\n", count );
|
|
count = -count;
|
|
}
|
|
|
|
/* Only get entire lines */
|
|
height = count / bmp->bitmap.bmWidthBytes;
|
|
if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight;
|
|
count = height * bmp->bitmap.bmWidthBytes;
|
|
|
|
TRACE("(%08x, %ld, %p) %dx%d %d colors fetched height: %ld\n",
|
|
hbitmap, count, bits, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
|
|
1 << bmp->bitmap.bmBitsPixel, height );
|
|
|
|
if(bmp->funcs) {
|
|
|
|
TRACE("Calling device specific BitmapBits\n");
|
|
if(bmp->funcs->pBitmapBits)
|
|
ret = bmp->funcs->pBitmapBits(hbitmap, (void *) bits, count, DDB_SET);
|
|
else {
|
|
ERR("BitmapBits == NULL??\n");
|
|
ret = 0;
|
|
}
|
|
|
|
} else {
|
|
|
|
if(!bmp->bitmap.bmBits) /* Alloc enough for entire bitmap */
|
|
bmp->bitmap.bmBits = HeapAlloc( GetProcessHeap(), 0, count );
|
|
if(!bmp->bitmap.bmBits) {
|
|
WARN("Unable to allocate bit buffer\n");
|
|
ret = 0;
|
|
} else {
|
|
memcpy(bmp->bitmap.bmBits, bits, count);
|
|
ret = count;
|
|
}
|
|
}
|
|
|
|
GDI_ReleaseObj( hbitmap );
|
|
return ret;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* BITMAP_CopyBitmap
|
|
*
|
|
*/
|
|
HBITMAP BITMAP_CopyBitmap(HBITMAP hbitmap)
|
|
{
|
|
BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
|
|
HBITMAP res = 0;
|
|
BITMAP bm;
|
|
|
|
if(!bmp) return 0;
|
|
|
|
bm = bmp->bitmap;
|
|
bm.bmBits = NULL;
|
|
res = CreateBitmapIndirect(&bm);
|
|
|
|
if(res) {
|
|
char *buf = HeapAlloc( GetProcessHeap(), 0, bm.bmWidthBytes *
|
|
bm.bmHeight );
|
|
GetBitmapBits (hbitmap, bm.bmWidthBytes * bm.bmHeight, buf);
|
|
SetBitmapBits (res, bm.bmWidthBytes * bm.bmHeight, buf);
|
|
HeapFree( GetProcessHeap(), 0, buf );
|
|
}
|
|
|
|
GDI_ReleaseObj( hbitmap );
|
|
return res;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* BITMAP_DeleteObject
|
|
*/
|
|
BOOL BITMAP_DeleteObject( HBITMAP16 hbitmap, BITMAPOBJ * bmp )
|
|
{
|
|
if (bmp->funcs && bmp->funcs->pDeleteObject)
|
|
bmp->funcs->pDeleteObject( hbitmap );
|
|
|
|
if( bmp->bitmap.bmBits )
|
|
HeapFree( GetProcessHeap(), 0, bmp->bitmap.bmBits );
|
|
|
|
DIB_DeleteDIBSection( bmp );
|
|
|
|
return GDI_FreeObject( hbitmap, bmp );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* BITMAP_GetObject16
|
|
*/
|
|
INT16 BITMAP_GetObject16( BITMAPOBJ * bmp, INT16 count, LPVOID buffer )
|
|
{
|
|
if (bmp->dib)
|
|
{
|
|
if ( count <= sizeof(BITMAP16) )
|
|
{
|
|
BITMAP *bmp32 = &bmp->dib->dsBm;
|
|
BITMAP16 bmp16;
|
|
bmp16.bmType = bmp32->bmType;
|
|
bmp16.bmWidth = bmp32->bmWidth;
|
|
bmp16.bmHeight = bmp32->bmHeight;
|
|
bmp16.bmWidthBytes = bmp32->bmWidthBytes;
|
|
bmp16.bmPlanes = bmp32->bmPlanes;
|
|
bmp16.bmBitsPixel = bmp32->bmBitsPixel;
|
|
bmp16.bmBits = (SEGPTR)0;
|
|
memcpy( buffer, &bmp16, count );
|
|
return count;
|
|
}
|
|
else
|
|
{
|
|
FIXME("not implemented for DIBs: count %d\n", count);
|
|
return 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
BITMAP16 bmp16;
|
|
bmp16.bmType = bmp->bitmap.bmType;
|
|
bmp16.bmWidth = bmp->bitmap.bmWidth;
|
|
bmp16.bmHeight = bmp->bitmap.bmHeight;
|
|
bmp16.bmWidthBytes = bmp->bitmap.bmWidthBytes;
|
|
bmp16.bmPlanes = bmp->bitmap.bmPlanes;
|
|
bmp16.bmBitsPixel = bmp->bitmap.bmBitsPixel;
|
|
bmp16.bmBits = (SEGPTR)0;
|
|
if (count > sizeof(bmp16)) count = sizeof(bmp16);
|
|
memcpy( buffer, &bmp16, count );
|
|
return count;
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* BITMAP_GetObject
|
|
*/
|
|
INT BITMAP_GetObject( BITMAPOBJ * bmp, INT count, LPVOID buffer )
|
|
{
|
|
if (bmp->dib)
|
|
{
|
|
if (count < sizeof(DIBSECTION))
|
|
{
|
|
if (count > sizeof(BITMAP)) count = sizeof(BITMAP);
|
|
}
|
|
else
|
|
{
|
|
if (count > sizeof(DIBSECTION)) count = sizeof(DIBSECTION);
|
|
}
|
|
|
|
memcpy( buffer, bmp->dib, count );
|
|
return count;
|
|
}
|
|
else
|
|
{
|
|
if (count > sizeof(BITMAP)) count = sizeof(BITMAP);
|
|
memcpy( buffer, &bmp->bitmap, count );
|
|
return count;
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreateDiscardableBitmap16 (GDI.156)
|
|
*/
|
|
HBITMAP16 WINAPI CreateDiscardableBitmap16( HDC16 hdc, INT16 width,
|
|
INT16 height )
|
|
{
|
|
return CreateCompatibleBitmap16( hdc, width, height );
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* CreateDiscardableBitmap [GDI32.38] Creates a discardable bitmap
|
|
*
|
|
* RETURNS
|
|
* Success: Handle to bitmap
|
|
* Failure: NULL
|
|
*/
|
|
HBITMAP WINAPI CreateDiscardableBitmap(
|
|
HDC hdc, /* [in] Handle to device context */
|
|
INT width, /* [in] Bitmap width */
|
|
INT height) /* [in] Bitmap height */
|
|
{
|
|
return CreateCompatibleBitmap( hdc, width, height );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetBitmapDimensionEx16 (GDI.468)
|
|
*
|
|
* NOTES
|
|
* Can this call GetBitmapDimensionEx?
|
|
*/
|
|
BOOL16 WINAPI GetBitmapDimensionEx16( HBITMAP16 hbitmap, LPSIZE16 size )
|
|
{
|
|
BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
|
|
if (!bmp) return FALSE;
|
|
CONV_SIZE32TO16( &bmp->size, size );
|
|
GDI_ReleaseObj( hbitmap );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* GetBitmapDimensionEx [GDI32.144] Retrieves dimensions of a bitmap
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL WINAPI GetBitmapDimensionEx(
|
|
HBITMAP hbitmap, /* [in] Handle to bitmap */
|
|
LPSIZE size) /* [out] Address of struct receiving dimensions */
|
|
{
|
|
BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
|
|
if (!bmp) return FALSE;
|
|
*size = bmp->size;
|
|
GDI_ReleaseObj( hbitmap );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetBitmapDimension (GDI.162)
|
|
*/
|
|
DWORD WINAPI GetBitmapDimension16( HBITMAP16 hbitmap )
|
|
{
|
|
SIZE16 size;
|
|
if (!GetBitmapDimensionEx16( hbitmap, &size )) return 0;
|
|
return MAKELONG( size.cx, size.cy );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetBitmapDimensionEx16 (GDI.478)
|
|
*/
|
|
BOOL16 WINAPI SetBitmapDimensionEx16( HBITMAP16 hbitmap, INT16 x, INT16 y,
|
|
LPSIZE16 prevSize )
|
|
{
|
|
BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
|
|
if (!bmp) return FALSE;
|
|
if (prevSize) CONV_SIZE32TO16( &bmp->size, prevSize );
|
|
bmp->size.cx = x;
|
|
bmp->size.cy = y;
|
|
GDI_ReleaseObj( hbitmap );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* SetBitmapDimensionEx [GDI32.304] Assignes dimensions to a bitmap
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL WINAPI SetBitmapDimensionEx(
|
|
HBITMAP hbitmap, /* [in] Handle to bitmap */
|
|
INT x, /* [in] Bitmap width */
|
|
INT y, /* [in] Bitmap height */
|
|
LPSIZE prevSize) /* [out] Address of structure for orig dims */
|
|
{
|
|
BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
|
|
if (!bmp) return FALSE;
|
|
if (prevSize) *prevSize = bmp->size;
|
|
bmp->size.cx = x;
|
|
bmp->size.cy = y;
|
|
GDI_ReleaseObj( hbitmap );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetBitmapDimension (GDI.163)
|
|
*/
|
|
DWORD WINAPI SetBitmapDimension16( HBITMAP16 hbitmap, INT16 x, INT16 y )
|
|
{
|
|
SIZE16 size;
|
|
if (!SetBitmapDimensionEx16( hbitmap, x, y, &size )) return 0;
|
|
return MAKELONG( size.cx, size.cy );
|
|
}
|
|
|