942 lines
29 KiB
C
942 lines
29 KiB
C
/*
|
|
* GDI bitmap objects
|
|
*
|
|
* Copyright 1993 Alexandre Julliard
|
|
* 1998 Huw D M Davies
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
#include <stdarg.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "windef.h"
|
|
#include "winbase.h"
|
|
#include "wingdi.h"
|
|
#include "gdi_private.h"
|
|
#include "wine/debug.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(bitmap);
|
|
|
|
|
|
static HGDIOBJ BITMAP_SelectObject( HGDIOBJ handle, HDC hdc );
|
|
static INT BITMAP_GetObject( HGDIOBJ handle, INT count, LPVOID buffer );
|
|
static BOOL BITMAP_DeleteObject( HGDIOBJ handle );
|
|
|
|
static const struct gdi_obj_funcs bitmap_funcs =
|
|
{
|
|
BITMAP_SelectObject, /* pSelectObject */
|
|
BITMAP_GetObject, /* pGetObjectA */
|
|
BITMAP_GetObject, /* pGetObjectW */
|
|
NULL, /* pUnrealizeObject */
|
|
BITMAP_DeleteObject /* pDeleteObject */
|
|
};
|
|
|
|
|
|
/***********************************************************************
|
|
* null driver fallback implementations
|
|
*/
|
|
|
|
DWORD nulldrv_GetImage( PHYSDEV dev, HBITMAP hbitmap, BITMAPINFO *info,
|
|
struct gdi_image_bits *bits, struct bitblt_coords *src )
|
|
{
|
|
BITMAPOBJ *bmp;
|
|
int height, width_bytes;
|
|
|
|
if (!hbitmap) return ERROR_NOT_SUPPORTED;
|
|
if (!(bmp = GDI_GetObjPtr( hbitmap, OBJ_BITMAP ))) return ERROR_INVALID_HANDLE;
|
|
|
|
info->bmiHeader.biSize = sizeof(info->bmiHeader);
|
|
info->bmiHeader.biPlanes = 1;
|
|
info->bmiHeader.biBitCount = bmp->bitmap.bmBitsPixel;
|
|
info->bmiHeader.biCompression = BI_RGB;
|
|
info->bmiHeader.biXPelsPerMeter = 0;
|
|
info->bmiHeader.biYPelsPerMeter = 0;
|
|
info->bmiHeader.biClrUsed = 0;
|
|
info->bmiHeader.biClrImportant = 0;
|
|
if (!bits) goto done;
|
|
|
|
height = src->visrect.bottom - src->visrect.top;
|
|
width_bytes = get_dib_stride( bmp->bitmap.bmWidth, bmp->bitmap.bmBitsPixel );
|
|
info->bmiHeader.biWidth = bmp->bitmap.bmWidth;
|
|
info->bmiHeader.biHeight = -height;
|
|
info->bmiHeader.biSizeImage = height * width_bytes;
|
|
|
|
/* make the source rectangle relative to the returned bits */
|
|
src->y -= src->visrect.top;
|
|
offset_rect( &src->visrect, 0, -src->visrect.top );
|
|
|
|
if (bmp->bitmap.bmBits && bmp->bitmap.bmWidthBytes == width_bytes)
|
|
{
|
|
bits->ptr = (char *)bmp->bitmap.bmBits + src->visrect.top * width_bytes;
|
|
bits->is_copy = FALSE;
|
|
bits->free = NULL;
|
|
}
|
|
else
|
|
{
|
|
bits->ptr = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage );
|
|
bits->is_copy = TRUE;
|
|
bits->free = free_heap_bits;
|
|
if (bmp->bitmap.bmBits)
|
|
{
|
|
/* fixup the line alignment */
|
|
char *src = bmp->bitmap.bmBits, *dst = bits->ptr;
|
|
for ( ; height > 0; height--, src += bmp->bitmap.bmWidthBytes, dst += width_bytes)
|
|
{
|
|
memcpy( dst, src, bmp->bitmap.bmWidthBytes );
|
|
memset( dst + bmp->bitmap.bmWidthBytes, 0, width_bytes - bmp->bitmap.bmWidthBytes );
|
|
}
|
|
}
|
|
else memset( bits->ptr, 0, info->bmiHeader.biSizeImage );
|
|
}
|
|
done:
|
|
GDI_ReleaseObj( hbitmap );
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
DWORD nulldrv_PutImage( PHYSDEV dev, HBITMAP hbitmap, HRGN clip, BITMAPINFO *info,
|
|
const struct gdi_image_bits *bits, struct bitblt_coords *src,
|
|
struct bitblt_coords *dst, DWORD rop )
|
|
{
|
|
BITMAPOBJ *bmp;
|
|
|
|
if (!hbitmap) return ERROR_SUCCESS;
|
|
if (!(bmp = GDI_GetObjPtr( hbitmap, OBJ_BITMAP ))) return ERROR_INVALID_HANDLE;
|
|
|
|
if (info->bmiHeader.biPlanes != 1) goto update_format;
|
|
if (info->bmiHeader.biBitCount != bmp->bitmap.bmBitsPixel) goto update_format;
|
|
/* FIXME: check color masks */
|
|
|
|
if (bits)
|
|
{
|
|
int i, width_bytes = get_dib_stride( info->bmiHeader.biWidth, info->bmiHeader.biBitCount );
|
|
unsigned char *dst_bits, *src_bits;
|
|
|
|
if ((src->width != dst->width) || (src->height != dst->height))
|
|
{
|
|
GDI_ReleaseObj( hbitmap );
|
|
return ERROR_TRANSFORM_NOT_SUPPORTED;
|
|
}
|
|
if (src->visrect.left > 0 || src->visrect.right < bmp->bitmap.bmWidth ||
|
|
dst->visrect.left > 0 || dst->visrect.right < bmp->bitmap.bmWidth)
|
|
{
|
|
FIXME( "setting partial rows not supported\n" );
|
|
GDI_ReleaseObj( hbitmap );
|
|
return ERROR_NOT_SUPPORTED;
|
|
}
|
|
if (clip)
|
|
{
|
|
FIXME( "clip region not supported\n" );
|
|
GDI_ReleaseObj( hbitmap );
|
|
return ERROR_NOT_SUPPORTED;
|
|
}
|
|
|
|
if (!bmp->bitmap.bmBits &&
|
|
!(bmp->bitmap.bmBits = HeapAlloc( GetProcessHeap(), 0,
|
|
bmp->bitmap.bmHeight * bmp->bitmap.bmWidthBytes )))
|
|
{
|
|
GDI_ReleaseObj( hbitmap );
|
|
return ERROR_OUTOFMEMORY;
|
|
}
|
|
src_bits = bits->ptr;
|
|
if (info->bmiHeader.biHeight > 0)
|
|
{
|
|
src_bits += (info->bmiHeader.biHeight - 1 - src->visrect.top) * width_bytes;
|
|
width_bytes = -width_bytes;
|
|
}
|
|
else
|
|
src_bits += src->visrect.top * width_bytes;
|
|
|
|
dst_bits = (unsigned char *)bmp->bitmap.bmBits + dst->visrect.top * bmp->bitmap.bmWidthBytes;
|
|
if (width_bytes != bmp->bitmap.bmWidthBytes)
|
|
{
|
|
for (i = 0; i < dst->visrect.bottom - dst->visrect.top; i++)
|
|
{
|
|
memcpy( dst_bits, src_bits, min( abs(width_bytes), bmp->bitmap.bmWidthBytes ));
|
|
src_bits += width_bytes;
|
|
dst_bits += bmp->bitmap.bmWidthBytes;
|
|
}
|
|
}
|
|
else memcpy( dst_bits, src_bits, width_bytes * (dst->visrect.bottom - dst->visrect.top) );
|
|
}
|
|
GDI_ReleaseObj( hbitmap );
|
|
return ERROR_SUCCESS;
|
|
|
|
update_format:
|
|
info->bmiHeader.biPlanes = 1;
|
|
info->bmiHeader.biBitCount = bmp->bitmap.bmBitsPixel;
|
|
if (info->bmiHeader.biHeight > 0) info->bmiHeader.biHeight = -info->bmiHeader.biHeight;
|
|
return ERROR_BAD_FORMAT;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* CreateBitmap [GDI32.@]
|
|
*
|
|
* 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 )
|
|
{
|
|
BITMAP bm;
|
|
|
|
bm.bmType = 0;
|
|
bm.bmWidth = width;
|
|
bm.bmHeight = height;
|
|
bm.bmWidthBytes = get_bitmap_stride( width, bpp );
|
|
bm.bmPlanes = planes;
|
|
bm.bmBitsPixel = bpp;
|
|
bm.bmBits = (LPVOID)bits;
|
|
|
|
return CreateBitmapIndirect( &bm );
|
|
}
|
|
|
|
/******************************************************************************
|
|
* CreateCompatibleBitmap [GDI32.@]
|
|
*
|
|
* 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;
|
|
|
|
TRACE("(%p,%d,%d) =\n", hdc, width, height);
|
|
|
|
if (GetObjectType( hdc ) != OBJ_MEMDC)
|
|
{
|
|
hbmpRet = CreateBitmap(width, height,
|
|
GetDeviceCaps(hdc, PLANES),
|
|
GetDeviceCaps(hdc, BITSPIXEL),
|
|
NULL);
|
|
}
|
|
else /* Memory DC */
|
|
{
|
|
DIBSECTION dib;
|
|
HBITMAP bitmap = GetCurrentObject( hdc, OBJ_BITMAP );
|
|
INT size = GetObjectW( bitmap, sizeof(dib), &dib );
|
|
|
|
if (!size) return 0;
|
|
|
|
if (size == sizeof(BITMAP))
|
|
{
|
|
/* A device-dependent bitmap is selected in the DC */
|
|
hbmpRet = CreateBitmap(width, height,
|
|
dib.dsBm.bmPlanes,
|
|
dib.dsBm.bmBitsPixel,
|
|
NULL);
|
|
}
|
|
else
|
|
{
|
|
/* A DIB section is selected in the DC */
|
|
BITMAPINFO *bi;
|
|
void *bits;
|
|
|
|
/* Allocate memory for a BITMAPINFOHEADER structure and a
|
|
color table. The maximum number of colors in a color table
|
|
is 256 which corresponds to a bitmap with depth 8.
|
|
Bitmaps with higher depths don't have color tables. */
|
|
bi = HeapAlloc(GetProcessHeap(), 0, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
|
|
|
|
if (bi)
|
|
{
|
|
bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
|
|
bi->bmiHeader.biWidth = width;
|
|
bi->bmiHeader.biHeight = height;
|
|
bi->bmiHeader.biPlanes = dib.dsBmih.biPlanes;
|
|
bi->bmiHeader.biBitCount = dib.dsBmih.biBitCount;
|
|
bi->bmiHeader.biCompression = dib.dsBmih.biCompression;
|
|
bi->bmiHeader.biSizeImage = 0;
|
|
bi->bmiHeader.biXPelsPerMeter = dib.dsBmih.biXPelsPerMeter;
|
|
bi->bmiHeader.biYPelsPerMeter = dib.dsBmih.biYPelsPerMeter;
|
|
bi->bmiHeader.biClrUsed = dib.dsBmih.biClrUsed;
|
|
bi->bmiHeader.biClrImportant = dib.dsBmih.biClrImportant;
|
|
|
|
if (bi->bmiHeader.biCompression == BI_BITFIELDS)
|
|
{
|
|
/* Copy the color masks */
|
|
CopyMemory(bi->bmiColors, dib.dsBitfields, 3 * sizeof(DWORD));
|
|
}
|
|
else if (bi->bmiHeader.biBitCount <= 8)
|
|
{
|
|
/* Copy the color table */
|
|
GetDIBColorTable(hdc, 0, 256, bi->bmiColors);
|
|
}
|
|
|
|
hbmpRet = CreateDIBSection(hdc, bi, DIB_RGB_COLORS, &bits, NULL, 0);
|
|
HeapFree(GetProcessHeap(), 0, bi);
|
|
}
|
|
}
|
|
}
|
|
|
|
TRACE("\t\t%p\n", hbmpRet);
|
|
return hbmpRet;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* CreateBitmapIndirect [GDI32.@]
|
|
*
|
|
* Creates a bitmap with the specified info.
|
|
*
|
|
* PARAMS
|
|
* bmp [I] Pointer to the bitmap info describing the bitmap
|
|
*
|
|
* RETURNS
|
|
* Success: Handle to bitmap
|
|
* Failure: NULL. Use GetLastError() to determine the cause.
|
|
*
|
|
* NOTES
|
|
* If a width or height of 0 are given, a 1x1 monochrome bitmap is returned.
|
|
*/
|
|
HBITMAP WINAPI CreateBitmapIndirect( const BITMAP *bmp )
|
|
{
|
|
BITMAP bm;
|
|
BITMAPOBJ *bmpobj;
|
|
HBITMAP hbitmap;
|
|
|
|
if (!bmp || bmp->bmType)
|
|
{
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return NULL;
|
|
}
|
|
|
|
if (bmp->bmWidth > 0x7ffffff || bmp->bmHeight > 0x7ffffff)
|
|
{
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return 0;
|
|
}
|
|
|
|
bm = *bmp;
|
|
|
|
if (!bm.bmWidth || !bm.bmHeight)
|
|
{
|
|
return GetStockObject( DEFAULT_BITMAP );
|
|
}
|
|
else
|
|
{
|
|
if (bm.bmHeight < 0)
|
|
bm.bmHeight = -bm.bmHeight;
|
|
if (bm.bmWidth < 0)
|
|
bm.bmWidth = -bm.bmWidth;
|
|
}
|
|
|
|
if (bm.bmPlanes != 1)
|
|
{
|
|
FIXME("planes = %d\n", bm.bmPlanes);
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return NULL;
|
|
}
|
|
|
|
/* Windows only uses 1, 4, 8, 16, 24 and 32 bpp */
|
|
if(bm.bmBitsPixel == 1) bm.bmBitsPixel = 1;
|
|
else if(bm.bmBitsPixel <= 4) bm.bmBitsPixel = 4;
|
|
else if(bm.bmBitsPixel <= 8) bm.bmBitsPixel = 8;
|
|
else if(bm.bmBitsPixel <= 16) bm.bmBitsPixel = 16;
|
|
else if(bm.bmBitsPixel <= 24) bm.bmBitsPixel = 24;
|
|
else if(bm.bmBitsPixel <= 32) bm.bmBitsPixel = 32;
|
|
else {
|
|
WARN("Invalid bmBitsPixel %d, returning ERROR_INVALID_PARAMETER\n", bm.bmBitsPixel);
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return NULL;
|
|
}
|
|
|
|
/* Windows ignores the provided bm.bmWidthBytes */
|
|
bm.bmWidthBytes = get_bitmap_stride( bm.bmWidth, bm.bmBitsPixel );
|
|
/* XP doesn't allow to create bitmaps larger than 128 Mb */
|
|
if (bm.bmHeight > 128 * 1024 * 1024 / bm.bmWidthBytes)
|
|
{
|
|
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
|
|
return 0;
|
|
}
|
|
|
|
/* Create the BITMAPOBJ */
|
|
if (!(bmpobj = HeapAlloc( GetProcessHeap(), 0, sizeof(*bmpobj) )))
|
|
{
|
|
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
|
|
return 0;
|
|
}
|
|
|
|
bmpobj->size.cx = 0;
|
|
bmpobj->size.cy = 0;
|
|
bmpobj->bitmap = bm;
|
|
bmpobj->bitmap.bmBits = NULL;
|
|
bmpobj->funcs = &null_driver;
|
|
bmpobj->dib = NULL;
|
|
bmpobj->color_table = NULL;
|
|
bmpobj->nb_colors = 0;
|
|
|
|
if (!(hbitmap = alloc_gdi_handle( &bmpobj->header, OBJ_BITMAP, &bitmap_funcs )))
|
|
{
|
|
HeapFree( GetProcessHeap(), 0, bmpobj );
|
|
return 0;
|
|
}
|
|
|
|
if (bm.bmBits)
|
|
SetBitmapBits( hbitmap, bm.bmHeight * bm.bmWidthBytes, bm.bmBits );
|
|
|
|
TRACE("%dx%d, %d colors returning %p\n", bm.bmWidth, bm.bmHeight,
|
|
1 << (bm.bmPlanes * bm.bmBitsPixel), hbitmap);
|
|
|
|
return hbitmap;
|
|
}
|
|
|
|
|
|
/* convenience wrapper for GetImage to retrieve the full contents of a bitmap */
|
|
BOOL get_bitmap_image( HBITMAP hbitmap, BITMAPINFO *info, struct gdi_image_bits *bits )
|
|
{
|
|
struct bitblt_coords src;
|
|
BOOL ret = FALSE;
|
|
BITMAPOBJ *bmp = GDI_GetObjPtr( hbitmap, OBJ_BITMAP );
|
|
|
|
if (bmp)
|
|
{
|
|
src.visrect.left = src.x = 0;
|
|
src.visrect.top = src.y = 0;
|
|
src.visrect.right = src.width = bmp->bitmap.bmWidth;
|
|
src.visrect.bottom = src.height = bmp->bitmap.bmHeight;
|
|
ret = !bmp->funcs->pGetImage( NULL, hbitmap, info, bits, &src );
|
|
GDI_ReleaseObj( hbitmap );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetBitmapBits [GDI32.@]
|
|
*
|
|
* 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 */
|
|
{
|
|
char buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
|
|
BITMAPINFO *info = (BITMAPINFO *)buffer;
|
|
struct gdi_image_bits src_bits;
|
|
struct bitblt_coords src;
|
|
int dst_stride, max, ret;
|
|
BITMAPOBJ *bmp = GDI_GetObjPtr( hbitmap, OBJ_BITMAP );
|
|
|
|
if (!bmp) return 0;
|
|
|
|
if (bmp->dib) dst_stride = get_bitmap_stride( bmp->dib->dsBmih.biWidth, bmp->dib->dsBmih.biBitCount );
|
|
else dst_stride = get_bitmap_stride( bmp->bitmap.bmWidth, bmp->bitmap.bmBitsPixel );
|
|
|
|
ret = max = dst_stride * bmp->bitmap.bmHeight;
|
|
if (!bits) goto done;
|
|
if (count > max) count = max;
|
|
ret = count;
|
|
|
|
src.visrect.left = 0;
|
|
src.visrect.right = bmp->bitmap.bmWidth;
|
|
src.visrect.top = 0;
|
|
src.visrect.bottom = (count + dst_stride - 1) / dst_stride;
|
|
src.x = src.y = 0;
|
|
src.width = src.visrect.right - src.visrect.left;
|
|
src.height = src.visrect.bottom - src.visrect.top;
|
|
|
|
if (!bmp->funcs->pGetImage( NULL, hbitmap, info, &src_bits, &src ))
|
|
{
|
|
const char *src_ptr = src_bits.ptr;
|
|
int src_stride = get_dib_stride( info->bmiHeader.biWidth, info->bmiHeader.biBitCount );
|
|
|
|
/* GetBitmapBits returns 16-bit aligned data */
|
|
|
|
if (info->bmiHeader.biHeight > 0)
|
|
{
|
|
src_ptr += (info->bmiHeader.biHeight - 1) * src_stride;
|
|
src_stride = -src_stride;
|
|
}
|
|
src_ptr += src.visrect.top * src_stride;
|
|
|
|
if (src_stride == dst_stride) memcpy( bits, src_ptr, count );
|
|
else while (count > 0)
|
|
{
|
|
memcpy( bits, src_ptr, min( count, dst_stride ) );
|
|
src_ptr += src_stride;
|
|
bits = (char *)bits + dst_stride;
|
|
count -= dst_stride;
|
|
}
|
|
if (src_bits.free) src_bits.free( &src_bits );
|
|
}
|
|
else ret = 0;
|
|
|
|
done:
|
|
GDI_ReleaseObj( hbitmap );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* SetBitmapBits [GDI32.@]
|
|
*
|
|
* 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 */
|
|
{
|
|
char buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
|
|
BITMAPINFO *info = (BITMAPINFO *)buffer;
|
|
BITMAPOBJ *bmp;
|
|
DWORD err;
|
|
int i, src_stride, dst_stride;
|
|
struct bitblt_coords src, dst;
|
|
struct gdi_image_bits src_bits;
|
|
|
|
if (!bits) return 0;
|
|
|
|
bmp = GDI_GetObjPtr( hbitmap, OBJ_BITMAP );
|
|
if (!bmp) return 0;
|
|
|
|
if (count < 0) {
|
|
WARN("(%d): Negative number of bytes passed???\n", count );
|
|
count = -count;
|
|
}
|
|
|
|
if (bmp->dib) src_stride = get_bitmap_stride( bmp->dib->dsBmih.biWidth, bmp->dib->dsBmih.biBitCount );
|
|
else src_stride = get_bitmap_stride( bmp->bitmap.bmWidth, bmp->bitmap.bmBitsPixel );
|
|
|
|
dst_stride = get_dib_stride( bmp->bitmap.bmWidth, bmp->bitmap.bmBitsPixel );
|
|
|
|
src.visrect.left = src.x = 0;
|
|
src.visrect.top = src.y = 0;
|
|
src.visrect.right = src.width = bmp->bitmap.bmWidth;
|
|
src.visrect.bottom = src.height = min( count / src_stride, bmp->bitmap.bmHeight );
|
|
dst = src;
|
|
|
|
/* Only set entire lines */
|
|
count = src.height * src_stride;
|
|
|
|
TRACE("(%p, %d, %p) %dx%d %d bpp fetched height: %d\n",
|
|
hbitmap, count, bits, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
|
|
bmp->bitmap.bmBitsPixel, src.height );
|
|
|
|
if (src_stride == dst_stride)
|
|
{
|
|
src_bits.ptr = (void *)bits;
|
|
src_bits.is_copy = FALSE;
|
|
src_bits.free = NULL;
|
|
}
|
|
else
|
|
{
|
|
if (!(src_bits.ptr = HeapAlloc( GetProcessHeap(), 0, dst.height * dst_stride )))
|
|
{
|
|
GDI_ReleaseObj( hbitmap );
|
|
return 0;
|
|
}
|
|
src_bits.is_copy = TRUE;
|
|
src_bits.free = free_heap_bits;
|
|
for (i = 0; i < dst.height; i++)
|
|
memcpy( (char *)src_bits.ptr + i * dst_stride, (char *)bits + i * src_stride, src_stride );
|
|
}
|
|
|
|
/* query the color info */
|
|
info->bmiHeader.biSize = sizeof(info->bmiHeader);
|
|
info->bmiHeader.biPlanes = 1;
|
|
info->bmiHeader.biBitCount = bmp->bitmap.bmBitsPixel;
|
|
info->bmiHeader.biCompression = BI_RGB;
|
|
info->bmiHeader.biXPelsPerMeter = 0;
|
|
info->bmiHeader.biYPelsPerMeter = 0;
|
|
info->bmiHeader.biClrUsed = 0;
|
|
info->bmiHeader.biClrImportant = 0;
|
|
info->bmiHeader.biWidth = 0;
|
|
info->bmiHeader.biHeight = 0;
|
|
info->bmiHeader.biSizeImage = 0;
|
|
err = bmp->funcs->pPutImage( NULL, hbitmap, 0, info, NULL, NULL, NULL, SRCCOPY );
|
|
|
|
if (!err || err == ERROR_BAD_FORMAT)
|
|
{
|
|
info->bmiHeader.biPlanes = 1;
|
|
info->bmiHeader.biBitCount = bmp->bitmap.bmBitsPixel;
|
|
info->bmiHeader.biWidth = bmp->bitmap.bmWidth;
|
|
info->bmiHeader.biHeight = -dst.height;
|
|
info->bmiHeader.biSizeImage = dst.height * dst_stride;
|
|
err = bmp->funcs->pPutImage( NULL, hbitmap, 0, info, &src_bits, &src, &dst, SRCCOPY );
|
|
}
|
|
if (err) count = 0;
|
|
|
|
if (src_bits.free) src_bits.free( &src_bits );
|
|
GDI_ReleaseObj( hbitmap );
|
|
return count;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* BITMAP_CopyBitmap
|
|
*
|
|
*/
|
|
HBITMAP BITMAP_CopyBitmap(HBITMAP hbitmap)
|
|
{
|
|
HBITMAP res;
|
|
DIBSECTION dib;
|
|
BITMAPOBJ *bmp = GDI_GetObjPtr( hbitmap, OBJ_BITMAP );
|
|
|
|
if (!bmp) return 0;
|
|
if (bmp->dib)
|
|
{
|
|
void *bits;
|
|
BITMAPINFO *bi;
|
|
HDC dc;
|
|
|
|
dib = *bmp->dib;
|
|
GDI_ReleaseObj( hbitmap );
|
|
dc = CreateCompatibleDC( NULL );
|
|
|
|
if (!dc) return 0;
|
|
if (!(bi = HeapAlloc(GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] ))))
|
|
{
|
|
DeleteDC( dc );
|
|
return 0;
|
|
}
|
|
bi->bmiHeader = dib.dsBmih;
|
|
|
|
/* Get the color table or the color masks */
|
|
GetDIBits( dc, hbitmap, 0, 0, NULL, bi, DIB_RGB_COLORS );
|
|
bi->bmiHeader.biHeight = dib.dsBmih.biHeight;
|
|
|
|
res = CreateDIBSection( dc, bi, DIB_RGB_COLORS, &bits, NULL, 0 );
|
|
if (res) SetDIBits( dc, res, 0, dib.dsBm.bmHeight, dib.dsBm.bmBits, bi, DIB_RGB_COLORS );
|
|
HeapFree( GetProcessHeap(), 0, bi );
|
|
DeleteDC( dc );
|
|
return res;
|
|
}
|
|
dib.dsBm = bmp->bitmap;
|
|
dib.dsBm.bmBits = NULL;
|
|
GDI_ReleaseObj( hbitmap );
|
|
|
|
res = CreateBitmapIndirect( &dib.dsBm );
|
|
if(res) {
|
|
char *buf = HeapAlloc( GetProcessHeap(), 0, dib.dsBm.bmWidthBytes * dib.dsBm.bmHeight );
|
|
GetBitmapBits (hbitmap, dib.dsBm.bmWidthBytes * dib.dsBm.bmHeight, buf);
|
|
SetBitmapBits (res, dib.dsBm.bmWidthBytes * dib.dsBm.bmHeight, buf);
|
|
HeapFree( GetProcessHeap(), 0, buf );
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
static void set_initial_bitmap_bits( HBITMAP hbitmap, BITMAPOBJ *bmp )
|
|
{
|
|
if (!bmp->bitmap.bmBits) return;
|
|
SetBitmapBits( hbitmap, bmp->bitmap.bmHeight * bmp->bitmap.bmWidthBytes, bmp->bitmap.bmBits );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* BITMAP_SetOwnerDC
|
|
*
|
|
* Set the type of DC that owns the bitmap. This is used when the
|
|
* bitmap is selected into a device to initialize the bitmap function
|
|
* table.
|
|
*/
|
|
BOOL BITMAP_SetOwnerDC( HBITMAP hbitmap, PHYSDEV physdev )
|
|
{
|
|
BITMAPOBJ *bitmap;
|
|
BOOL ret = TRUE;
|
|
|
|
/* never set the owner of the stock bitmap since it can be selected in multiple DCs */
|
|
if (hbitmap == GetStockObject(DEFAULT_BITMAP)) return TRUE;
|
|
|
|
if (!(bitmap = GDI_GetObjPtr( hbitmap, OBJ_BITMAP ))) return FALSE;
|
|
|
|
if (!bitmap->dib && bitmap->funcs != physdev->funcs)
|
|
{
|
|
/* we can only change from the null driver to some other driver */
|
|
if (bitmap->funcs == &null_driver)
|
|
{
|
|
if (physdev->funcs->pCreateBitmap)
|
|
{
|
|
ret = physdev->funcs->pCreateBitmap( physdev, hbitmap );
|
|
if (ret)
|
|
{
|
|
bitmap->funcs = physdev->funcs;
|
|
set_initial_bitmap_bits( hbitmap, bitmap );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
WARN( "Trying to select bitmap %p in DC that doesn't support it\n", hbitmap );
|
|
ret = FALSE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
FIXME( "Trying to select bitmap %p in different DC type\n", hbitmap );
|
|
ret = FALSE;
|
|
}
|
|
}
|
|
GDI_ReleaseObj( hbitmap );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* BITMAP_SelectObject
|
|
*/
|
|
static HGDIOBJ BITMAP_SelectObject( HGDIOBJ handle, HDC hdc )
|
|
{
|
|
HGDIOBJ ret;
|
|
BITMAPOBJ *bitmap;
|
|
DC *dc;
|
|
PHYSDEV physdev = NULL, old_physdev = NULL;
|
|
|
|
if (!(dc = get_dc_ptr( hdc ))) return 0;
|
|
|
|
if (GetObjectType( hdc ) != OBJ_MEMDC)
|
|
{
|
|
ret = 0;
|
|
goto done;
|
|
}
|
|
ret = dc->hBitmap;
|
|
if (handle == dc->hBitmap) goto done; /* nothing to do */
|
|
|
|
if (!(bitmap = GDI_GetObjPtr( handle, OBJ_BITMAP )))
|
|
{
|
|
ret = 0;
|
|
goto done;
|
|
}
|
|
|
|
if (bitmap->header.selcount && (handle != GetStockObject(DEFAULT_BITMAP)))
|
|
{
|
|
WARN( "Bitmap already selected in another DC\n" );
|
|
GDI_ReleaseObj( handle );
|
|
ret = 0;
|
|
goto done;
|
|
}
|
|
|
|
old_physdev = GET_DC_PHYSDEV( dc, pSelectBitmap );
|
|
if(old_physdev == &dc->dibdrv.dev)
|
|
pop_dc_driver( dc, old_physdev );
|
|
|
|
if(bitmap->dib)
|
|
{
|
|
physdev = &dc->dibdrv.dev;
|
|
push_dc_driver( dc, physdev, physdev->funcs );
|
|
}
|
|
else
|
|
physdev = GET_DC_PHYSDEV( dc, pSelectBitmap );
|
|
|
|
if (!BITMAP_SetOwnerDC( handle, physdev ))
|
|
{
|
|
GDI_ReleaseObj( handle );
|
|
ret = 0;
|
|
goto done;
|
|
}
|
|
if (!physdev->funcs->pSelectBitmap( physdev, handle ))
|
|
{
|
|
GDI_ReleaseObj( handle );
|
|
ret = 0;
|
|
}
|
|
else
|
|
{
|
|
dc->hBitmap = handle;
|
|
GDI_inc_ref_count( handle );
|
|
dc->dirty = 0;
|
|
dc->vis_rect.left = 0;
|
|
dc->vis_rect.top = 0;
|
|
dc->vis_rect.right = bitmap->bitmap.bmWidth;
|
|
dc->vis_rect.bottom = bitmap->bitmap.bmHeight;
|
|
SetRectRgn( dc->hVisRgn, 0, 0, bitmap->bitmap.bmWidth, bitmap->bitmap.bmHeight);
|
|
GDI_ReleaseObj( handle );
|
|
DC_InitDC( dc );
|
|
GDI_dec_ref_count( ret );
|
|
}
|
|
|
|
done:
|
|
if(!ret)
|
|
{
|
|
if(physdev == &dc->dibdrv.dev) pop_dc_driver( dc, physdev );
|
|
if(old_physdev == &dc->dibdrv.dev) push_dc_driver( dc, old_physdev, old_physdev->funcs );
|
|
}
|
|
release_dc_ptr( dc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* BITMAP_DeleteObject
|
|
*/
|
|
static BOOL BITMAP_DeleteObject( HGDIOBJ handle )
|
|
{
|
|
const DC_FUNCTIONS *funcs;
|
|
BITMAPOBJ *bmp = GDI_GetObjPtr( handle, OBJ_BITMAP );
|
|
|
|
if (!bmp) return FALSE;
|
|
funcs = bmp->funcs;
|
|
GDI_ReleaseObj( handle );
|
|
|
|
funcs->pDeleteBitmap( handle );
|
|
|
|
if (!(bmp = free_gdi_handle( handle ))) return FALSE;
|
|
|
|
HeapFree( GetProcessHeap(), 0, bmp->bitmap.bmBits );
|
|
|
|
if (bmp->dib)
|
|
{
|
|
DIBSECTION *dib = bmp->dib;
|
|
|
|
if (dib->dsBm.bmBits)
|
|
{
|
|
if (dib->dshSection)
|
|
{
|
|
SYSTEM_INFO SystemInfo;
|
|
GetSystemInfo( &SystemInfo );
|
|
UnmapViewOfFile( (char *)dib->dsBm.bmBits -
|
|
(dib->dsOffset % SystemInfo.dwAllocationGranularity) );
|
|
}
|
|
else if (!dib->dsOffset)
|
|
VirtualFree(dib->dsBm.bmBits, 0L, MEM_RELEASE );
|
|
}
|
|
HeapFree(GetProcessHeap(), 0, dib);
|
|
HeapFree(GetProcessHeap(), 0, bmp->color_table);
|
|
}
|
|
return HeapFree( GetProcessHeap(), 0, bmp );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* BITMAP_GetObject
|
|
*/
|
|
static INT BITMAP_GetObject( HGDIOBJ handle, INT count, LPVOID buffer )
|
|
{
|
|
INT ret;
|
|
BITMAPOBJ *bmp = GDI_GetObjPtr( handle, OBJ_BITMAP );
|
|
|
|
if (!bmp) return 0;
|
|
|
|
if (!buffer) ret = sizeof(BITMAP);
|
|
else if (count < sizeof(BITMAP)) ret = 0;
|
|
else if (bmp->dib)
|
|
{
|
|
if (count >= sizeof(DIBSECTION))
|
|
{
|
|
DIBSECTION *dib = buffer;
|
|
*dib = *bmp->dib;
|
|
dib->dsBmih.biHeight = abs( dib->dsBmih.biHeight );
|
|
ret = sizeof(DIBSECTION);
|
|
}
|
|
else /* if (count >= sizeof(BITMAP)) */
|
|
{
|
|
DIBSECTION *dib = bmp->dib;
|
|
memcpy( buffer, &dib->dsBm, sizeof(BITMAP) );
|
|
ret = sizeof(BITMAP);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
memcpy( buffer, &bmp->bitmap, sizeof(BITMAP) );
|
|
((BITMAP *) buffer)->bmBits = NULL;
|
|
ret = sizeof(BITMAP);
|
|
}
|
|
GDI_ReleaseObj( handle );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* CreateDiscardableBitmap [GDI32.@]
|
|
*
|
|
* 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 );
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* GetBitmapDimensionEx [GDI32.@]
|
|
*
|
|
* 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 = GDI_GetObjPtr( hbitmap, OBJ_BITMAP );
|
|
if (!bmp) return FALSE;
|
|
*size = bmp->size;
|
|
GDI_ReleaseObj( hbitmap );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* SetBitmapDimensionEx [GDI32.@]
|
|
*
|
|
* Assigns dimensions to a bitmap.
|
|
* MSDN says that this function will fail if hbitmap is a handle created by
|
|
* CreateDIBSection, but that's not true on Windows 2000.
|
|
*
|
|
* 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 = GDI_GetObjPtr( hbitmap, OBJ_BITMAP );
|
|
if (!bmp) return FALSE;
|
|
if (prevSize) *prevSize = bmp->size;
|
|
bmp->size.cx = x;
|
|
bmp->size.cy = y;
|
|
GDI_ReleaseObj( hbitmap );
|
|
return TRUE;
|
|
}
|