gdiplus: Added GdipBitmapLockBits.
This commit is contained in:
parent
5fb1c16276
commit
7a9a30d95c
|
@ -41,10 +41,10 @@
|
||||||
@ stub GdipBitmapGetHistogram
|
@ stub GdipBitmapGetHistogram
|
||||||
@ stub GdipBitmapGetHistogramSize
|
@ stub GdipBitmapGetHistogramSize
|
||||||
@ stdcall GdipBitmapGetPixel(ptr long long ptr)
|
@ stdcall GdipBitmapGetPixel(ptr long long ptr)
|
||||||
@ stub GdipBitmapLockBits
|
@ stdcall GdipBitmapLockBits(ptr ptr long long ptr)
|
||||||
@ stub GdipBitmapSetPixel
|
@ stub GdipBitmapSetPixel
|
||||||
@ stub GdipBitmapSetResolution
|
@ stub GdipBitmapSetResolution
|
||||||
@ stub GdipBitmapUnlockBits
|
@ stdcall GdipBitmapUnlockBits(ptr ptr)
|
||||||
@ stub GdipClearPathMarkers
|
@ stub GdipClearPathMarkers
|
||||||
@ stub GdipCloneBitmapArea
|
@ stub GdipCloneBitmapArea
|
||||||
@ stub GdipCloneBitmapAreaI
|
@ stub GdipCloneBitmapAreaI
|
||||||
|
|
|
@ -143,6 +143,9 @@ struct GpBitmap{
|
||||||
INT width;
|
INT width;
|
||||||
INT height;
|
INT height;
|
||||||
PixelFormat format;
|
PixelFormat format;
|
||||||
|
ImageLockMode lockmode;
|
||||||
|
INT numlocks;
|
||||||
|
BYTE *bitmapbits; /* pointer to the buffer we passed in BitmapLockBits */
|
||||||
};
|
};
|
||||||
|
|
||||||
struct GpImageAttributes{
|
struct GpImageAttributes{
|
||||||
|
|
|
@ -88,6 +88,147 @@ GpStatus WINGDIPAPI GdipBitmapGetPixel(GpBitmap* bitmap, INT x, INT y,
|
||||||
return NotImplemented;
|
return NotImplemented;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/* This function returns a pointer to an array of pixels that represents the
|
||||||
|
* bitmap. The *entire* bitmap is locked according to the lock mode specified by
|
||||||
|
* flags. It is correct behavior that a user who calls this function with write
|
||||||
|
* privileges can write to the whole bitmap (not just the area in rect).
|
||||||
|
*
|
||||||
|
* FIXME: only used portion of format is bits per pixel. */
|
||||||
|
GpStatus WINGDIPAPI GdipBitmapLockBits(GpBitmap* bitmap, GDIPCONST GpRect* rect,
|
||||||
|
UINT flags, PixelFormat format, BitmapData* lockeddata)
|
||||||
|
{
|
||||||
|
BOOL bm_is_selected;
|
||||||
|
INT stride, bitspp = PIXELFORMATBPP(format);
|
||||||
|
OLE_HANDLE hbm;
|
||||||
|
HDC hdc;
|
||||||
|
HBITMAP old = NULL;
|
||||||
|
BITMAPINFO bmi;
|
||||||
|
BYTE *buff = NULL;
|
||||||
|
UINT abs_height;
|
||||||
|
|
||||||
|
TRACE("%p %p %d %d %p\n", bitmap, rect, flags, format, lockeddata);
|
||||||
|
|
||||||
|
if(!lockeddata || !bitmap || !rect)
|
||||||
|
return InvalidParameter;
|
||||||
|
|
||||||
|
if(rect->X < 0 || rect->Y < 0 || (rect->X + rect->Width > bitmap->width) ||
|
||||||
|
(rect->Y + rect->Height > bitmap->height) || !flags)
|
||||||
|
return InvalidParameter;
|
||||||
|
|
||||||
|
if(flags & ImageLockModeUserInputBuf)
|
||||||
|
return NotImplemented;
|
||||||
|
|
||||||
|
if((bitmap->lockmode & ImageLockModeWrite) || (bitmap->lockmode &&
|
||||||
|
(flags & ImageLockModeWrite)))
|
||||||
|
return WrongState;
|
||||||
|
|
||||||
|
IPicture_get_Handle(bitmap->image.picture, &hbm);
|
||||||
|
IPicture_get_CurDC(bitmap->image.picture, &hdc);
|
||||||
|
bm_is_selected = (hdc != 0);
|
||||||
|
|
||||||
|
bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
|
||||||
|
bmi.bmiHeader.biBitCount = 0;
|
||||||
|
|
||||||
|
if(!bm_is_selected){
|
||||||
|
hdc = GetDC(0);
|
||||||
|
old = SelectObject(hdc, (HBITMAP)hbm);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* fill out bmi */
|
||||||
|
GetDIBits(hdc, (HBITMAP)hbm, 0, 0, NULL, &bmi, DIB_RGB_COLORS);
|
||||||
|
|
||||||
|
abs_height = abs(bmi.bmiHeader.biHeight);
|
||||||
|
stride = bmi.bmiHeader.biWidth * bitspp / 8;
|
||||||
|
stride = (stride + 3) & ~3;
|
||||||
|
|
||||||
|
buff = GdipAlloc(stride * abs_height);
|
||||||
|
if(!buff) return OutOfMemory;
|
||||||
|
|
||||||
|
bmi.bmiHeader.biBitCount = bitspp;
|
||||||
|
GetDIBits(hdc, (HBITMAP)hbm, 0, abs_height, buff, &bmi, DIB_RGB_COLORS);
|
||||||
|
|
||||||
|
if(!bm_is_selected){
|
||||||
|
SelectObject(hdc, old);
|
||||||
|
ReleaseDC(0, hdc);
|
||||||
|
}
|
||||||
|
|
||||||
|
lockeddata->Width = rect->Width;
|
||||||
|
lockeddata->Height = rect->Height;
|
||||||
|
lockeddata->PixelFormat = format;
|
||||||
|
lockeddata->Reserved = flags;
|
||||||
|
|
||||||
|
if(bmi.bmiHeader.biHeight > 0){
|
||||||
|
lockeddata->Stride = -stride;
|
||||||
|
lockeddata->Scan0 = buff + (bitspp / 8) * rect->X +
|
||||||
|
stride * (abs_height - 1 - rect->Y);
|
||||||
|
}
|
||||||
|
else{
|
||||||
|
lockeddata->Stride = stride;
|
||||||
|
lockeddata->Scan0 = buff + (bitspp / 8) * rect->X + stride * rect->Y;
|
||||||
|
}
|
||||||
|
|
||||||
|
bitmap->lockmode = flags;
|
||||||
|
bitmap->numlocks++;
|
||||||
|
|
||||||
|
if(flags & ImageLockModeWrite)
|
||||||
|
bitmap->bitmapbits = buff;
|
||||||
|
|
||||||
|
return Ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
GpStatus WINGDIPAPI GdipBitmapUnlockBits(GpBitmap* bitmap,
|
||||||
|
BitmapData* lockeddata)
|
||||||
|
{
|
||||||
|
OLE_HANDLE hbm;
|
||||||
|
HDC hdc;
|
||||||
|
HBITMAP old = NULL;
|
||||||
|
BOOL bm_is_selected;
|
||||||
|
BITMAPINFO bmi;
|
||||||
|
|
||||||
|
if(!bitmap || !lockeddata)
|
||||||
|
return InvalidParameter;
|
||||||
|
|
||||||
|
if(!bitmap->lockmode)
|
||||||
|
return WrongState;
|
||||||
|
|
||||||
|
if(lockeddata->Reserved & ImageLockModeUserInputBuf)
|
||||||
|
return NotImplemented;
|
||||||
|
|
||||||
|
if(lockeddata->Reserved & ImageLockModeRead){
|
||||||
|
if(!(--bitmap->numlocks))
|
||||||
|
bitmap->lockmode = 0;
|
||||||
|
|
||||||
|
GdipFree(lockeddata->Scan0);
|
||||||
|
return Ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
IPicture_get_Handle(bitmap->image.picture, &hbm);
|
||||||
|
IPicture_get_CurDC(bitmap->image.picture, &hdc);
|
||||||
|
bm_is_selected = (hdc != 0);
|
||||||
|
|
||||||
|
bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
|
||||||
|
bmi.bmiHeader.biBitCount = 0;
|
||||||
|
|
||||||
|
if(!bm_is_selected){
|
||||||
|
hdc = GetDC(0);
|
||||||
|
old = SelectObject(hdc, (HBITMAP)hbm);
|
||||||
|
}
|
||||||
|
|
||||||
|
GetDIBits(hdc, (HBITMAP)hbm, 0, 0, NULL, &bmi, DIB_RGB_COLORS);
|
||||||
|
bmi.bmiHeader.biBitCount = PIXELFORMATBPP(lockeddata->PixelFormat);
|
||||||
|
SetDIBits(hdc, (HBITMAP)hbm, 0, abs(bmi.bmiHeader.biHeight),
|
||||||
|
bitmap->bitmapbits, &bmi, DIB_RGB_COLORS);
|
||||||
|
|
||||||
|
if(!bm_is_selected){
|
||||||
|
SelectObject(hdc, old);
|
||||||
|
ReleaseDC(0, hdc);
|
||||||
|
}
|
||||||
|
|
||||||
|
GdipFree(bitmap->bitmapbits);
|
||||||
|
|
||||||
|
return Ok;
|
||||||
|
}
|
||||||
|
|
||||||
GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride,
|
GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride,
|
||||||
PixelFormat format, BYTE* scan0, GpBitmap** bitmap)
|
PixelFormat format, BYTE* scan0, GpBitmap** bitmap)
|
||||||
{
|
{
|
||||||
|
|
|
@ -164,6 +164,8 @@ GpStatus WINGDIPAPI GdipCreateCustomLineCap(GpPath*,GpPath*,GpLineCap,REAL,
|
||||||
GpStatus WINGDIPAPI GdipDeleteCustomLineCap(GpCustomLineCap*);
|
GpStatus WINGDIPAPI GdipDeleteCustomLineCap(GpCustomLineCap*);
|
||||||
|
|
||||||
GpStatus WINGDIPAPI GdipBitmapGetPixel(GpBitmap*,INT,INT,ARGB*);
|
GpStatus WINGDIPAPI GdipBitmapGetPixel(GpBitmap*,INT,INT,ARGB*);
|
||||||
|
GpStatus WINGDIPAPI GdipBitmapLockBits(GpBitmap*,GDIPCONST GpRect*,UINT,
|
||||||
|
PixelFormat,BitmapData*);
|
||||||
GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT,INT,INT,PixelFormat,BYTE*,
|
GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT,INT,INT,PixelFormat,BYTE*,
|
||||||
GpBitmap**);
|
GpBitmap**);
|
||||||
GpStatus WINGDIPAPI GdipCreateBitmapFromStream(IStream*,GpBitmap**);
|
GpStatus WINGDIPAPI GdipCreateBitmapFromStream(IStream*,GpBitmap**);
|
||||||
|
|
|
@ -67,5 +67,6 @@ typedef DashStyle GpDashStyle;
|
||||||
typedef MatrixOrder GpMatrixOrder;
|
typedef MatrixOrder GpMatrixOrder;
|
||||||
typedef Point GpPoint;
|
typedef Point GpPoint;
|
||||||
typedef WrapMode GpWrapMode;
|
typedef WrapMode GpWrapMode;
|
||||||
|
typedef Rect GpRect;
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|
|
@ -19,6 +19,13 @@
|
||||||
#ifndef _GDIPLUSIMAGING_H
|
#ifndef _GDIPLUSIMAGING_H
|
||||||
#define _GDIPLUSIMAGING_H
|
#define _GDIPLUSIMAGING_H
|
||||||
|
|
||||||
|
enum ImageLockMode
|
||||||
|
{
|
||||||
|
ImageLockModeRead = 1,
|
||||||
|
ImageLockModeWrite = 2,
|
||||||
|
ImageLockModeUserInputBuf = 4
|
||||||
|
};
|
||||||
|
|
||||||
#ifdef __cplusplus
|
#ifdef __cplusplus
|
||||||
class EncoderParameter
|
class EncoderParameter
|
||||||
{
|
{
|
||||||
|
@ -35,8 +42,22 @@ public:
|
||||||
UINT Count;
|
UINT Count;
|
||||||
EncoderParameter Parameter[1];
|
EncoderParameter Parameter[1];
|
||||||
};
|
};
|
||||||
|
|
||||||
|
class BitmapData
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
UINT Width;
|
||||||
|
UINT Height;
|
||||||
|
INT Stride;
|
||||||
|
PixelFormat PixelFormat;
|
||||||
|
VOID* Scan0;
|
||||||
|
UINT_PTR Reserved;
|
||||||
|
};
|
||||||
|
|
||||||
#else /* end of c++ typedefs */
|
#else /* end of c++ typedefs */
|
||||||
|
|
||||||
|
typedef enum ImageLockMode ImageLockMode;
|
||||||
|
|
||||||
typedef struct EncoderParameter
|
typedef struct EncoderParameter
|
||||||
{
|
{
|
||||||
GUID Guid;
|
GUID Guid;
|
||||||
|
@ -51,6 +72,16 @@ typedef struct EncoderParameters
|
||||||
EncoderParameter Parameter[1];
|
EncoderParameter Parameter[1];
|
||||||
} EncoderParameters;
|
} EncoderParameters;
|
||||||
|
|
||||||
|
typedef struct BitmapData
|
||||||
|
{
|
||||||
|
UINT Width;
|
||||||
|
UINT Height;
|
||||||
|
INT Stride;
|
||||||
|
PixelFormat PixelFormat;
|
||||||
|
VOID* Scan0;
|
||||||
|
UINT_PTR Reserved; /* undocumented: stores the lock mode */
|
||||||
|
}BitmapData;
|
||||||
|
|
||||||
#endif /* end of c typedefs */
|
#endif /* end of c typedefs */
|
||||||
|
|
||||||
#endif /* _GDIPLUSIMAGING_H */
|
#endif /* _GDIPLUSIMAGING_H */
|
||||||
|
|
|
@ -177,6 +177,15 @@ public:
|
||||||
REAL Height;
|
REAL Height;
|
||||||
};
|
};
|
||||||
|
|
||||||
|
class Rect
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
INT X;
|
||||||
|
INT Y;
|
||||||
|
INT Width;
|
||||||
|
INT Height;
|
||||||
|
};
|
||||||
|
|
||||||
#else /* end of c++ typedefs */
|
#else /* end of c++ typedefs */
|
||||||
|
|
||||||
typedef struct Point
|
typedef struct Point
|
||||||
|
@ -206,6 +215,14 @@ typedef struct RectF
|
||||||
REAL Height;
|
REAL Height;
|
||||||
} RectF;
|
} RectF;
|
||||||
|
|
||||||
|
typedef struct Rect
|
||||||
|
{
|
||||||
|
INT X;
|
||||||
|
INT Y;
|
||||||
|
INT Width;
|
||||||
|
INT Height;
|
||||||
|
} Rect;
|
||||||
|
|
||||||
typedef enum Status Status;
|
typedef enum Status Status;
|
||||||
|
|
||||||
#endif /* end of c typedefs */
|
#endif /* end of c typedefs */
|
||||||
|
|
Loading…
Reference in New Issue