1231 lines
36 KiB
C
1231 lines
36 KiB
C
/*
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* Copyright 2009 Vincent Povirk for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <assert.h>
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#include <stdarg.h>
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#define COBJMACROS
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#include "windef.h"
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#include "winbase.h"
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#include "winreg.h"
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#include "wingdi.h"
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#include "objbase.h"
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#include "wincodecs_private.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
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typedef struct {
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DWORD bc2Size;
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DWORD bc2Width;
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DWORD bc2Height;
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WORD bc2Planes;
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WORD bc2BitCount;
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DWORD bc2Compression;
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DWORD bc2SizeImage;
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DWORD bc2XRes;
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DWORD bc2YRes;
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DWORD bc2ClrUsed;
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DWORD bc2ClrImportant;
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/* same as BITMAPINFOHEADER until this point */
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WORD bc2ResUnit;
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WORD bc2Reserved;
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WORD bc2Orientation;
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WORD bc2Halftoning;
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DWORD bc2HalftoneSize1;
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DWORD bc2HalftoneSize2;
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DWORD bc2ColorSpace;
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DWORD bc2AppData;
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} BITMAPCOREHEADER2;
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typedef HRESULT (*ReadDataFunc)(BmpDecoder* This);
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struct BmpDecoder {
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IWICBitmapDecoder IWICBitmapDecoder_iface;
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IWICBitmapFrameDecode IWICBitmapFrameDecode_iface;
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LONG ref;
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BOOL initialized;
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IStream *stream;
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ULONG palette_offset;
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ULONG image_offset;
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BITMAPV5HEADER bih;
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const WICPixelFormatGUID *pixelformat;
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int bitsperpixel;
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ReadDataFunc read_data_func;
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INT stride;
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BYTE *imagedata;
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BYTE *imagedatastart;
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CRITICAL_SECTION lock; /* must be held when initialized/imagedata is set or stream is accessed */
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int packed; /* If TRUE, don't look for a file header and assume a packed DIB. */
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int icoframe; /* If TRUE, this is a frame of a .ico file. */
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};
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static inline BmpDecoder *impl_from_IWICBitmapDecoder(IWICBitmapDecoder *iface)
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{
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return CONTAINING_RECORD(iface, BmpDecoder, IWICBitmapDecoder_iface);
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}
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static inline BmpDecoder *impl_from_IWICBitmapFrameDecode(IWICBitmapFrameDecode *iface)
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{
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return CONTAINING_RECORD(iface, BmpDecoder, IWICBitmapFrameDecode_iface);
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}
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static HRESULT WINAPI BmpFrameDecode_QueryInterface(IWICBitmapFrameDecode *iface, REFIID iid,
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void **ppv)
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{
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BmpDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
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TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
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if (!ppv) return E_INVALIDARG;
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if (IsEqualIID(&IID_IUnknown, iid) ||
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IsEqualIID(&IID_IWICBitmapSource, iid) ||
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IsEqualIID(&IID_IWICBitmapFrameDecode, iid))
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{
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*ppv = &This->IWICBitmapFrameDecode_iface;
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}
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else
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{
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*ppv = NULL;
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return E_NOINTERFACE;
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}
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IUnknown_AddRef((IUnknown*)*ppv);
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return S_OK;
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}
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static ULONG WINAPI BmpFrameDecode_AddRef(IWICBitmapFrameDecode *iface)
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{
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BmpDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
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return IWICBitmapDecoder_AddRef(&This->IWICBitmapDecoder_iface);
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}
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static ULONG WINAPI BmpFrameDecode_Release(IWICBitmapFrameDecode *iface)
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{
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BmpDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
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return IWICBitmapDecoder_Release(&This->IWICBitmapDecoder_iface);
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}
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static HRESULT WINAPI BmpFrameDecode_GetSize(IWICBitmapFrameDecode *iface,
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UINT *puiWidth, UINT *puiHeight)
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{
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BmpDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
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TRACE("(%p,%p,%p)\n", iface, puiWidth, puiHeight);
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if (This->bih.bV5Size == sizeof(BITMAPCOREHEADER))
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{
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BITMAPCOREHEADER *bch = (BITMAPCOREHEADER*)&This->bih;
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*puiWidth = bch->bcWidth;
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*puiHeight = bch->bcHeight;
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}
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else
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{
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*puiWidth = This->bih.bV5Width;
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*puiHeight = abs(This->bih.bV5Height);
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}
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return S_OK;
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}
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static HRESULT WINAPI BmpFrameDecode_GetPixelFormat(IWICBitmapFrameDecode *iface,
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WICPixelFormatGUID *pPixelFormat)
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{
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BmpDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
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TRACE("(%p,%p)\n", iface, pPixelFormat);
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memcpy(pPixelFormat, This->pixelformat, sizeof(GUID));
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return S_OK;
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}
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static HRESULT BmpHeader_GetResolution(BITMAPV5HEADER *bih, double *pDpiX, double *pDpiY)
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{
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LONG resx = 0, resy = 0;
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switch (bih->bV5Size)
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{
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default:
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case sizeof(BITMAPCOREHEADER):
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break;
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case sizeof(BITMAPCOREHEADER2):
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case sizeof(BITMAPINFOHEADER):
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case sizeof(BITMAPV4HEADER):
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case sizeof(BITMAPV5HEADER):
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resx = bih->bV5XPelsPerMeter;
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resy = bih->bV5YPelsPerMeter;
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break;
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}
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if (!resx || !resy)
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{
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*pDpiX = 96.0;
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*pDpiY = 96.0;
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}
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else
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{
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*pDpiX = resx * 0.0254;
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*pDpiY = resy * 0.0254;
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}
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return S_OK;
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}
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static HRESULT WINAPI BmpFrameDecode_GetResolution(IWICBitmapFrameDecode *iface,
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double *pDpiX, double *pDpiY)
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{
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BmpDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
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TRACE("(%p,%p,%p)\n", iface, pDpiX, pDpiY);
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return BmpHeader_GetResolution(&This->bih, pDpiX, pDpiY);
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}
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static HRESULT WINAPI BmpFrameDecode_CopyPalette(IWICBitmapFrameDecode *iface,
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IWICPalette *pIPalette)
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{
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HRESULT hr;
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BmpDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
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int count;
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WICColor *wiccolors=NULL;
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RGBTRIPLE *bgrcolors=NULL;
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TRACE("(%p,%p)\n", iface, pIPalette);
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EnterCriticalSection(&This->lock);
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if (This->bih.bV5Size == sizeof(BITMAPCOREHEADER))
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{
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BITMAPCOREHEADER *bch = (BITMAPCOREHEADER*)&This->bih;
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if (bch->bcBitCount <= 8)
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{
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/* 2**n colors in BGR format after the header */
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ULONG tablesize, bytesread;
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LARGE_INTEGER offset;
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int i;
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count = 1 << bch->bcBitCount;
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wiccolors = HeapAlloc(GetProcessHeap(), 0, sizeof(WICColor) * count);
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tablesize = sizeof(RGBTRIPLE) * count;
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bgrcolors = HeapAlloc(GetProcessHeap(), 0, tablesize);
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if (!wiccolors || !bgrcolors)
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{
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hr = E_OUTOFMEMORY;
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goto end;
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}
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offset.QuadPart = This->palette_offset;
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hr = IStream_Seek(This->stream, offset, STREAM_SEEK_SET, NULL);
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if (FAILED(hr)) goto end;
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hr = IStream_Read(This->stream, bgrcolors, tablesize, &bytesread);
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if (FAILED(hr)) goto end;
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if (bytesread != tablesize) {
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hr = E_FAIL;
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goto end;
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}
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for (i=0; i<count; i++)
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{
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wiccolors[i] = 0xff000000|
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(bgrcolors[i].rgbtRed<<16)|
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(bgrcolors[i].rgbtGreen<<8)|
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bgrcolors[i].rgbtBlue;
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}
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}
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else
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{
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hr = WINCODEC_ERR_PALETTEUNAVAILABLE;
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goto end;
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}
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}
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else
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{
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if (This->bih.bV5BitCount <= 8)
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{
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ULONG tablesize, bytesread;
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LARGE_INTEGER offset;
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int i;
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if (This->bih.bV5ClrUsed == 0)
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count = 1 << This->bih.bV5BitCount;
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else
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count = min(This->bih.bV5ClrUsed, 1 << This->bih.bV5BitCount);
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tablesize = sizeof(WICColor) * count;
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wiccolors = HeapAlloc(GetProcessHeap(), 0, tablesize);
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if (!wiccolors)
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{
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hr = E_OUTOFMEMORY;
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goto end;
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}
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offset.QuadPart = This->palette_offset;
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hr = IStream_Seek(This->stream, offset, STREAM_SEEK_SET, NULL);
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if (FAILED(hr)) goto end;
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hr = IStream_Read(This->stream, wiccolors, tablesize, &bytesread);
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if (FAILED(hr)) goto end;
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if (bytesread != tablesize) {
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hr = E_FAIL;
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goto end;
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}
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/* convert from BGR to BGRA by setting alpha to 100% */
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for (i=0; i<count; i++)
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wiccolors[i] |= 0xff000000;
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}
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else
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{
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hr = WINCODEC_ERR_PALETTEUNAVAILABLE;
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goto end;
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}
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}
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end:
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LeaveCriticalSection(&This->lock);
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if (SUCCEEDED(hr))
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hr = IWICPalette_InitializeCustom(pIPalette, wiccolors, count);
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HeapFree(GetProcessHeap(), 0, wiccolors);
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HeapFree(GetProcessHeap(), 0, bgrcolors);
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return hr;
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}
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static HRESULT WINAPI BmpFrameDecode_CopyPixels(IWICBitmapFrameDecode *iface,
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const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
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{
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BmpDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
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HRESULT hr=S_OK;
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UINT width, height;
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TRACE("(%p,%s,%u,%u,%p)\n", iface, debug_wic_rect(prc), cbStride, cbBufferSize, pbBuffer);
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EnterCriticalSection(&This->lock);
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if (!This->imagedata)
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{
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hr = This->read_data_func(This);
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}
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LeaveCriticalSection(&This->lock);
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if (FAILED(hr)) return hr;
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hr = BmpFrameDecode_GetSize(iface, &width, &height);
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if (FAILED(hr)) return hr;
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return copy_pixels(This->bitsperpixel, This->imagedatastart,
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width, height, This->stride,
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prc, cbStride, cbBufferSize, pbBuffer);
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}
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static HRESULT WINAPI BmpFrameDecode_GetMetadataQueryReader(IWICBitmapFrameDecode *iface,
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IWICMetadataQueryReader **ppIMetadataQueryReader)
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{
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TRACE("(%p,%p)\n", iface, ppIMetadataQueryReader);
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return WINCODEC_ERR_UNSUPPORTEDOPERATION;
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}
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static HRESULT WINAPI BmpFrameDecode_GetColorContexts(IWICBitmapFrameDecode *iface,
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UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
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{
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TRACE("(%p,%u,%p,%p)\n", iface, cCount, ppIColorContexts, pcActualCount);
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return WINCODEC_ERR_UNSUPPORTEDOPERATION;
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}
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static HRESULT WINAPI BmpFrameDecode_GetThumbnail(IWICBitmapFrameDecode *iface,
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IWICBitmapSource **ppIThumbnail)
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{
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TRACE("(%p,%p)\n", iface, ppIThumbnail);
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return WINCODEC_ERR_CODECNOTHUMBNAIL;
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}
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static HRESULT BmpFrameDecode_ReadUncompressed(BmpDecoder* This)
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{
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UINT bytesperrow;
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UINT width, height;
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UINT datasize;
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int bottomup;
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HRESULT hr;
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LARGE_INTEGER offbits;
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ULONG bytesread;
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if (This->bih.bV5Size == sizeof(BITMAPCOREHEADER))
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{
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BITMAPCOREHEADER *bch = (BITMAPCOREHEADER*)&This->bih;
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width = bch->bcWidth;
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height = bch->bcHeight;
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bottomup = 1;
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}
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else
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{
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width = This->bih.bV5Width;
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height = abs(This->bih.bV5Height);
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bottomup = (This->bih.bV5Height > 0);
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}
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/* row sizes in BMP files must be divisible by 4 bytes */
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bytesperrow = (((width * This->bitsperpixel)+31)/32)*4;
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datasize = bytesperrow * height;
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This->imagedata = HeapAlloc(GetProcessHeap(), 0, datasize);
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if (!This->imagedata) return E_OUTOFMEMORY;
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offbits.QuadPart = This->image_offset;
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hr = IStream_Seek(This->stream, offbits, STREAM_SEEK_SET, NULL);
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if (FAILED(hr)) goto fail;
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hr = IStream_Read(This->stream, This->imagedata, datasize, &bytesread);
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if (FAILED(hr) || bytesread != datasize) goto fail;
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if (bottomup)
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{
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This->imagedatastart = This->imagedata + (height-1) * bytesperrow;
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This->stride = -bytesperrow;
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}
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else
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{
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This->imagedatastart = This->imagedata;
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This->stride = bytesperrow;
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}
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return S_OK;
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fail:
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HeapFree(GetProcessHeap(), 0, This->imagedata);
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This->imagedata = NULL;
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if (SUCCEEDED(hr)) hr = E_FAIL;
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return hr;
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}
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static HRESULT BmpFrameDecode_ReadRGB8(BmpDecoder* This)
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{
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HRESULT hr;
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UINT width, height;
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hr = IWICBitmapFrameDecode_GetSize(&This->IWICBitmapFrameDecode_iface, &width, &height);
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|
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if (SUCCEEDED(hr))
|
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{
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hr = BmpFrameDecode_ReadUncompressed(This);
|
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}
|
|
|
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if (SUCCEEDED(hr))
|
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{
|
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reverse_bgr8(This->bitsperpixel/8, This->imagedatastart,
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width, height, This->stride);
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}
|
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|
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return hr;
|
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}
|
|
|
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static HRESULT ReadByte(IStream *stream, BYTE *buffer, ULONG buffer_size,
|
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ULONG *cursor, ULONG *bytesread, BYTE *result)
|
|
{
|
|
HRESULT hr=S_OK;
|
|
|
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if (*bytesread == 0 || *cursor == *bytesread)
|
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{
|
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hr = IStream_Read(stream, buffer, buffer_size, bytesread);
|
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*cursor = 0;
|
|
}
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
if (*cursor < *bytesread)
|
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*result = buffer[(*cursor)++];
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else
|
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hr = E_FAIL;
|
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}
|
|
|
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return hr;
|
|
}
|
|
|
|
static HRESULT BmpFrameDecode_ReadRLE8(BmpDecoder* This)
|
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{
|
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UINT bytesperrow;
|
|
UINT width, height;
|
|
BYTE rledata[4096];
|
|
UINT datasize, palettesize;
|
|
DWORD palette[256];
|
|
UINT x, y;
|
|
DWORD *bgrdata;
|
|
HRESULT hr;
|
|
LARGE_INTEGER offbits;
|
|
ULONG cursor=0, bytesread=0;
|
|
|
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width = This->bih.bV5Width;
|
|
height = abs(This->bih.bV5Height);
|
|
bytesperrow = width * 4;
|
|
datasize = bytesperrow * height;
|
|
if (This->bih.bV5ClrUsed && This->bih.bV5ClrUsed < 256)
|
|
palettesize = 4 * This->bih.bV5ClrUsed;
|
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else
|
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palettesize = 4 * 256;
|
|
|
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This->imagedata = HeapAlloc(GetProcessHeap(), 0, datasize);
|
|
if (!This->imagedata)
|
|
{
|
|
hr = E_OUTOFMEMORY;
|
|
goto fail;
|
|
}
|
|
|
|
/* read palette */
|
|
offbits.QuadPart = This->palette_offset;
|
|
hr = IStream_Seek(This->stream, offbits, STREAM_SEEK_SET, NULL);
|
|
if (FAILED(hr)) goto fail;
|
|
|
|
hr = IStream_Read(This->stream, palette, palettesize, &bytesread);
|
|
if (FAILED(hr) || bytesread != palettesize) goto fail;
|
|
|
|
/* read RLE data */
|
|
offbits.QuadPart = This->image_offset;
|
|
hr = IStream_Seek(This->stream, offbits, STREAM_SEEK_SET, NULL);
|
|
if (FAILED(hr)) goto fail;
|
|
|
|
/* decode RLE */
|
|
bgrdata = (DWORD*)This->imagedata;
|
|
x = 0;
|
|
y = 0;
|
|
cursor = 0;
|
|
bytesread = 0;
|
|
while (y < height)
|
|
{
|
|
BYTE length;
|
|
hr = ReadByte(This->stream, rledata, 4096, &cursor, &bytesread, &length);
|
|
|
|
if (FAILED(hr))
|
|
goto fail;
|
|
else if (length == 0)
|
|
{
|
|
/* escape code */
|
|
BYTE escape;
|
|
hr = ReadByte(This->stream, rledata, 4096, &cursor, &bytesread, &escape);
|
|
if (FAILED(hr))
|
|
goto fail;
|
|
switch(escape)
|
|
{
|
|
case 0: /* end of line */
|
|
x = 0;
|
|
y++;
|
|
break;
|
|
case 1: /* end of bitmap */
|
|
goto end;
|
|
case 2: /* delta */
|
|
{
|
|
BYTE dx, dy;
|
|
hr = ReadByte(This->stream, rledata, 4096, &cursor, &bytesread, &dx);
|
|
if (SUCCEEDED(hr))
|
|
hr = ReadByte(This->stream, rledata, 4096, &cursor, &bytesread, &dy);
|
|
if (FAILED(hr))
|
|
goto fail;
|
|
x += dx;
|
|
y += dy;
|
|
break;
|
|
}
|
|
default: /* absolute mode */
|
|
length = escape;
|
|
while (length-- && x < width)
|
|
{
|
|
BYTE index;
|
|
hr = ReadByte(This->stream, rledata, 4096, &cursor, &bytesread, &index);
|
|
if (FAILED(hr))
|
|
goto fail;
|
|
bgrdata[y*width + x++] = palette[index];
|
|
}
|
|
if (escape & 1)
|
|
hr = ReadByte(This->stream, rledata, 4096, &cursor, &bytesread, &length); /* skip pad byte */
|
|
if (FAILED(hr))
|
|
goto fail;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
BYTE index;
|
|
DWORD color;
|
|
hr = ReadByte(This->stream, rledata, 4096, &cursor, &bytesread, &index);
|
|
if (FAILED(hr))
|
|
goto fail;
|
|
color = palette[index];
|
|
while (length-- && x < width)
|
|
bgrdata[y*width + x++] = color;
|
|
}
|
|
}
|
|
|
|
end:
|
|
This->imagedatastart = This->imagedata + (height-1) * bytesperrow;
|
|
This->stride = -bytesperrow;
|
|
|
|
return S_OK;
|
|
|
|
fail:
|
|
HeapFree(GetProcessHeap(), 0, This->imagedata);
|
|
This->imagedata = NULL;
|
|
if (SUCCEEDED(hr)) hr = E_FAIL;
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT BmpFrameDecode_ReadRLE4(BmpDecoder* This)
|
|
{
|
|
UINT bytesperrow;
|
|
UINT width, height;
|
|
BYTE rledata[4096];
|
|
UINT datasize, palettesize;
|
|
DWORD palette[16];
|
|
UINT x, y;
|
|
DWORD *bgrdata;
|
|
HRESULT hr;
|
|
LARGE_INTEGER offbits;
|
|
ULONG cursor=0, bytesread=0;
|
|
|
|
width = This->bih.bV5Width;
|
|
height = abs(This->bih.bV5Height);
|
|
bytesperrow = width * 4;
|
|
datasize = bytesperrow * height;
|
|
if (This->bih.bV5ClrUsed && This->bih.bV5ClrUsed < 16)
|
|
palettesize = 4 * This->bih.bV5ClrUsed;
|
|
else
|
|
palettesize = 4 * 16;
|
|
|
|
This->imagedata = HeapAlloc(GetProcessHeap(), 0, datasize);
|
|
if (!This->imagedata)
|
|
{
|
|
hr = E_OUTOFMEMORY;
|
|
goto fail;
|
|
}
|
|
|
|
/* read palette */
|
|
offbits.QuadPart = This->palette_offset;
|
|
hr = IStream_Seek(This->stream, offbits, STREAM_SEEK_SET, NULL);
|
|
if (FAILED(hr)) goto fail;
|
|
|
|
hr = IStream_Read(This->stream, palette, palettesize, &bytesread);
|
|
if (FAILED(hr) || bytesread != palettesize) goto fail;
|
|
|
|
/* read RLE data */
|
|
offbits.QuadPart = This->image_offset;
|
|
hr = IStream_Seek(This->stream, offbits, STREAM_SEEK_SET, NULL);
|
|
if (FAILED(hr)) goto fail;
|
|
|
|
/* decode RLE */
|
|
bgrdata = (DWORD*)This->imagedata;
|
|
x = 0;
|
|
y = 0;
|
|
cursor = 0;
|
|
bytesread = 0;
|
|
while (y < height)
|
|
{
|
|
BYTE length;
|
|
hr = ReadByte(This->stream, rledata, 4096, &cursor, &bytesread, &length);
|
|
|
|
if (FAILED(hr))
|
|
goto fail;
|
|
else if (length == 0)
|
|
{
|
|
/* escape code */
|
|
BYTE escape;
|
|
hr = ReadByte(This->stream, rledata, 4096, &cursor, &bytesread, &escape);
|
|
if (FAILED(hr))
|
|
goto fail;
|
|
switch(escape)
|
|
{
|
|
case 0: /* end of line */
|
|
x = 0;
|
|
y++;
|
|
break;
|
|
case 1: /* end of bitmap */
|
|
goto end;
|
|
case 2: /* delta */
|
|
{
|
|
BYTE dx, dy;
|
|
hr = ReadByte(This->stream, rledata, 4096, &cursor, &bytesread, &dx);
|
|
if (SUCCEEDED(hr))
|
|
hr = ReadByte(This->stream, rledata, 4096, &cursor, &bytesread, &dy);
|
|
if (FAILED(hr))
|
|
goto fail;
|
|
x += dx;
|
|
y += dy;
|
|
break;
|
|
}
|
|
default: /* absolute mode */
|
|
{
|
|
BYTE realsize=0;
|
|
length = escape;
|
|
while (length-- && x < width)
|
|
{
|
|
BYTE colors;
|
|
hr = ReadByte(This->stream, rledata, 4096, &cursor, &bytesread, &colors);
|
|
realsize++;
|
|
if (FAILED(hr))
|
|
goto fail;
|
|
bgrdata[y*width + x++] = palette[colors>>4];
|
|
if (length-- && x < width)
|
|
bgrdata[y*width + x++] = palette[colors&0xf];
|
|
else
|
|
break;
|
|
}
|
|
if (realsize & 1)
|
|
hr = ReadByte(This->stream, rledata, 4096, &cursor, &bytesread, &length); /* skip pad byte */
|
|
if (FAILED(hr))
|
|
goto fail;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
BYTE colors;
|
|
DWORD color1;
|
|
DWORD color2;
|
|
hr = ReadByte(This->stream, rledata, 4096, &cursor, &bytesread, &colors);
|
|
if (FAILED(hr))
|
|
goto fail;
|
|
color1 = palette[colors>>4];
|
|
color2 = palette[colors&0xf];
|
|
while (length-- && x < width)
|
|
{
|
|
bgrdata[y*width + x++] = color1;
|
|
if (length-- && x < width)
|
|
bgrdata[y*width + x++] = color2;
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
end:
|
|
This->imagedatastart = This->imagedata + (height-1) * bytesperrow;
|
|
This->stride = -bytesperrow;
|
|
|
|
return S_OK;
|
|
|
|
fail:
|
|
HeapFree(GetProcessHeap(), 0, This->imagedata);
|
|
This->imagedata = NULL;
|
|
if (SUCCEEDED(hr)) hr = E_FAIL;
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT BmpFrameDecode_ReadUnsupported(BmpDecoder* This)
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
struct bitfields_format {
|
|
WORD bitcount; /* 0 for end of list */
|
|
DWORD redmask;
|
|
DWORD greenmask;
|
|
DWORD bluemask;
|
|
DWORD alphamask;
|
|
const WICPixelFormatGUID *pixelformat;
|
|
ReadDataFunc read_data_func;
|
|
};
|
|
|
|
static const struct bitfields_format bitfields_formats[] = {
|
|
{16,0x7c00,0x3e0,0x1f,0,&GUID_WICPixelFormat16bppBGR555,BmpFrameDecode_ReadUncompressed},
|
|
{16,0xf800,0x7e0,0x1f,0,&GUID_WICPixelFormat16bppBGR565,BmpFrameDecode_ReadUncompressed},
|
|
{32,0xff0000,0xff00,0xff,0,&GUID_WICPixelFormat32bppBGR,BmpFrameDecode_ReadUncompressed},
|
|
{32,0xff0000,0xff00,0xff,0xff000000,&GUID_WICPixelFormat32bppBGRA,BmpFrameDecode_ReadUncompressed},
|
|
{32,0xff,0xff00,0xff0000,0,&GUID_WICPixelFormat32bppBGR,BmpFrameDecode_ReadRGB8},
|
|
{0}
|
|
};
|
|
|
|
static const IWICBitmapFrameDecodeVtbl BmpDecoder_FrameVtbl = {
|
|
BmpFrameDecode_QueryInterface,
|
|
BmpFrameDecode_AddRef,
|
|
BmpFrameDecode_Release,
|
|
BmpFrameDecode_GetSize,
|
|
BmpFrameDecode_GetPixelFormat,
|
|
BmpFrameDecode_GetResolution,
|
|
BmpFrameDecode_CopyPalette,
|
|
BmpFrameDecode_CopyPixels,
|
|
BmpFrameDecode_GetMetadataQueryReader,
|
|
BmpFrameDecode_GetColorContexts,
|
|
BmpFrameDecode_GetThumbnail
|
|
};
|
|
|
|
static HRESULT BmpDecoder_ReadHeaders(BmpDecoder* This, IStream *stream)
|
|
{
|
|
HRESULT hr;
|
|
ULONG bytestoread, bytesread;
|
|
LARGE_INTEGER seek;
|
|
|
|
if (This->initialized) return WINCODEC_ERR_WRONGSTATE;
|
|
|
|
seek.QuadPart = 0;
|
|
hr = IStream_Seek(stream, seek, STREAM_SEEK_SET, NULL);
|
|
if (FAILED(hr)) return hr;
|
|
|
|
if (!This->packed)
|
|
{
|
|
BITMAPFILEHEADER bfh;
|
|
hr = IStream_Read(stream, &bfh, sizeof(BITMAPFILEHEADER), &bytesread);
|
|
if (FAILED(hr)) return hr;
|
|
if (bytesread != sizeof(BITMAPFILEHEADER) ||
|
|
bfh.bfType != 0x4d42 /* "BM" */) return E_FAIL;
|
|
This->image_offset = bfh.bfOffBits;
|
|
}
|
|
|
|
hr = IStream_Read(stream, &This->bih.bV5Size, sizeof(DWORD), &bytesread);
|
|
if (FAILED(hr)) return hr;
|
|
if (bytesread != sizeof(DWORD) ||
|
|
(This->bih.bV5Size != sizeof(BITMAPCOREHEADER) &&
|
|
This->bih.bV5Size != sizeof(BITMAPCOREHEADER2) &&
|
|
This->bih.bV5Size != sizeof(BITMAPINFOHEADER) &&
|
|
This->bih.bV5Size != sizeof(BITMAPV4HEADER) &&
|
|
This->bih.bV5Size != sizeof(BITMAPV5HEADER))) return E_FAIL;
|
|
|
|
bytestoread = This->bih.bV5Size-sizeof(DWORD);
|
|
hr = IStream_Read(stream, &This->bih.bV5Width, bytestoread, &bytesread);
|
|
if (FAILED(hr)) return hr;
|
|
if (bytestoread != bytesread) return E_FAIL;
|
|
|
|
if (This->packed)
|
|
This->palette_offset = This->bih.bV5Size;
|
|
else
|
|
This->palette_offset = sizeof(BITMAPFILEHEADER) + This->bih.bV5Size;
|
|
|
|
if (This->icoframe)
|
|
{
|
|
if (This->bih.bV5Size == sizeof(BITMAPCOREHEADER))
|
|
{
|
|
BITMAPCOREHEADER *bch = (BITMAPCOREHEADER*)&This->bih;
|
|
bch->bcHeight /= 2;
|
|
}
|
|
else
|
|
{
|
|
This->bih.bV5Height /= 2;
|
|
}
|
|
}
|
|
|
|
/* if this is a BITMAPINFOHEADER with BI_BITFIELDS compression, we need to
|
|
read the extra fields */
|
|
if (This->bih.bV5Size == sizeof(BITMAPINFOHEADER) &&
|
|
This->bih.bV5Compression == BI_BITFIELDS)
|
|
{
|
|
hr = IStream_Read(stream, &This->bih.bV5RedMask, 12, &bytesread);
|
|
if (FAILED(hr)) return hr;
|
|
if (bytesread != 12) return E_FAIL;
|
|
This->bih.bV5AlphaMask = 0;
|
|
This->palette_offset += 12;
|
|
}
|
|
|
|
/* decide what kind of bitmap this is and how/if we can read it */
|
|
if (This->bih.bV5Size == sizeof(BITMAPCOREHEADER))
|
|
{
|
|
BITMAPCOREHEADER *bch = (BITMAPCOREHEADER*)&This->bih;
|
|
TRACE("BITMAPCOREHEADER with depth=%i\n", bch->bcBitCount);
|
|
This->bitsperpixel = bch->bcBitCount;
|
|
This->read_data_func = BmpFrameDecode_ReadUncompressed;
|
|
switch(bch->bcBitCount)
|
|
{
|
|
case 1:
|
|
This->pixelformat = &GUID_WICPixelFormat1bppIndexed;
|
|
break;
|
|
case 2:
|
|
This->pixelformat = &GUID_WICPixelFormat2bppIndexed;
|
|
break;
|
|
case 4:
|
|
This->pixelformat = &GUID_WICPixelFormat4bppIndexed;
|
|
break;
|
|
case 8:
|
|
This->pixelformat = &GUID_WICPixelFormat8bppIndexed;
|
|
break;
|
|
case 24:
|
|
This->pixelformat = &GUID_WICPixelFormat24bppBGR;
|
|
break;
|
|
default:
|
|
This->pixelformat = &GUID_WICPixelFormatUndefined;
|
|
WARN("unsupported bit depth %i for BITMAPCOREHEADER\n", bch->bcBitCount);
|
|
break;
|
|
}
|
|
}
|
|
else /* struct is compatible with BITMAPINFOHEADER */
|
|
{
|
|
TRACE("bitmap header=%i compression=%i depth=%i\n", This->bih.bV5Size, This->bih.bV5Compression, This->bih.bV5BitCount);
|
|
switch(This->bih.bV5Compression)
|
|
{
|
|
case BI_RGB:
|
|
This->bitsperpixel = This->bih.bV5BitCount;
|
|
This->read_data_func = BmpFrameDecode_ReadUncompressed;
|
|
switch(This->bih.bV5BitCount)
|
|
{
|
|
case 1:
|
|
This->pixelformat = &GUID_WICPixelFormat1bppIndexed;
|
|
break;
|
|
case 2:
|
|
This->pixelformat = &GUID_WICPixelFormat2bppIndexed;
|
|
break;
|
|
case 4:
|
|
This->pixelformat = &GUID_WICPixelFormat4bppIndexed;
|
|
break;
|
|
case 8:
|
|
This->pixelformat = &GUID_WICPixelFormat8bppIndexed;
|
|
break;
|
|
case 16:
|
|
This->pixelformat = &GUID_WICPixelFormat16bppBGR555;
|
|
break;
|
|
case 24:
|
|
This->pixelformat = &GUID_WICPixelFormat24bppBGR;
|
|
break;
|
|
case 32:
|
|
This->pixelformat = &GUID_WICPixelFormat32bppBGR;
|
|
break;
|
|
default:
|
|
This->pixelformat = &GUID_WICPixelFormatUndefined;
|
|
FIXME("unsupported bit depth %i for uncompressed RGB\n", This->bih.bV5BitCount);
|
|
}
|
|
break;
|
|
case BI_RLE8:
|
|
This->bitsperpixel = 32;
|
|
This->read_data_func = BmpFrameDecode_ReadRLE8;
|
|
This->pixelformat = &GUID_WICPixelFormat32bppBGR;
|
|
break;
|
|
case BI_RLE4:
|
|
This->bitsperpixel = 32;
|
|
This->read_data_func = BmpFrameDecode_ReadRLE4;
|
|
This->pixelformat = &GUID_WICPixelFormat32bppBGR;
|
|
break;
|
|
case BI_BITFIELDS:
|
|
{
|
|
const struct bitfields_format *format;
|
|
if (This->bih.bV5Size == sizeof(BITMAPCOREHEADER2))
|
|
{
|
|
/* BCH2 doesn't support bitfields; this is Huffman 1D compression */
|
|
This->bitsperpixel = 0;
|
|
This->read_data_func = BmpFrameDecode_ReadUnsupported;
|
|
This->pixelformat = &GUID_WICPixelFormatUndefined;
|
|
FIXME("Huffman 1D compression is unsupported\n");
|
|
break;
|
|
}
|
|
This->bitsperpixel = This->bih.bV5BitCount;
|
|
for (format = bitfields_formats; format->bitcount; format++)
|
|
{
|
|
if ((format->bitcount == This->bih.bV5BitCount) &&
|
|
(format->redmask == This->bih.bV5RedMask) &&
|
|
(format->greenmask == This->bih.bV5GreenMask) &&
|
|
(format->bluemask == This->bih.bV5BlueMask) &&
|
|
(format->alphamask == This->bih.bV5AlphaMask))
|
|
{
|
|
This->read_data_func = format->read_data_func;
|
|
This->pixelformat = format->pixelformat;
|
|
break;
|
|
}
|
|
}
|
|
if (!format->bitcount)
|
|
{
|
|
This->read_data_func = BmpFrameDecode_ReadUncompressed;
|
|
This->pixelformat = &GUID_WICPixelFormatUndefined;
|
|
FIXME("unsupported bitfields type depth=%i red=%x green=%x blue=%x alpha=%x\n",
|
|
This->bih.bV5BitCount, This->bih.bV5RedMask, This->bih.bV5GreenMask, This->bih.bV5BlueMask, This->bih.bV5AlphaMask);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
This->bitsperpixel = 0;
|
|
This->read_data_func = BmpFrameDecode_ReadUnsupported;
|
|
This->pixelformat = &GUID_WICPixelFormatUndefined;
|
|
FIXME("unsupported bitmap type header=%i compression=%i depth=%i\n", This->bih.bV5Size, This->bih.bV5Compression, This->bih.bV5BitCount);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (This->packed)
|
|
{
|
|
/* In a packed DIB, the image follows the palette. */
|
|
ULONG palette_count, palette_size;
|
|
if (This->bih.bV5ClrUsed)
|
|
palette_count = This->bih.bV5ClrUsed;
|
|
else if (This->bih.bV5BitCount <= 8)
|
|
palette_count = 1 << This->bih.bV5BitCount;
|
|
else
|
|
palette_count = 0;
|
|
if (This->bih.bV5Size == sizeof(BITMAPCOREHEADER))
|
|
palette_size = sizeof(RGBTRIPLE) * palette_count;
|
|
else
|
|
palette_size = sizeof(RGBQUAD) * palette_count;
|
|
This->image_offset = This->palette_offset + palette_size;
|
|
}
|
|
|
|
This->initialized = TRUE;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI BmpDecoder_QueryInterface(IWICBitmapDecoder *iface, REFIID iid,
|
|
void **ppv)
|
|
{
|
|
BmpDecoder *This = impl_from_IWICBitmapDecoder(iface);
|
|
TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
|
|
|
|
if (!ppv) return E_INVALIDARG;
|
|
|
|
if (IsEqualIID(&IID_IUnknown, iid) ||
|
|
IsEqualIID(&IID_IWICBitmapDecoder, iid))
|
|
{
|
|
*ppv = &This->IWICBitmapDecoder_iface;
|
|
}
|
|
else
|
|
{
|
|
*ppv = NULL;
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
IUnknown_AddRef((IUnknown*)*ppv);
|
|
return S_OK;
|
|
}
|
|
|
|
static ULONG WINAPI BmpDecoder_AddRef(IWICBitmapDecoder *iface)
|
|
{
|
|
BmpDecoder *This = impl_from_IWICBitmapDecoder(iface);
|
|
ULONG ref = InterlockedIncrement(&This->ref);
|
|
|
|
TRACE("(%p) refcount=%u\n", iface, ref);
|
|
|
|
return ref;
|
|
}
|
|
|
|
static ULONG WINAPI BmpDecoder_Release(IWICBitmapDecoder *iface)
|
|
{
|
|
BmpDecoder *This = impl_from_IWICBitmapDecoder(iface);
|
|
ULONG ref = InterlockedDecrement(&This->ref);
|
|
|
|
TRACE("(%p) refcount=%u\n", iface, ref);
|
|
|
|
if (ref == 0)
|
|
{
|
|
if (This->stream) IStream_Release(This->stream);
|
|
HeapFree(GetProcessHeap(), 0, This->imagedata);
|
|
This->lock.DebugInfo->Spare[0] = 0;
|
|
DeleteCriticalSection(&This->lock);
|
|
HeapFree(GetProcessHeap(), 0, This);
|
|
}
|
|
|
|
return ref;
|
|
}
|
|
|
|
static HRESULT WINAPI BmpDecoder_QueryCapability(IWICBitmapDecoder *iface, IStream *stream,
|
|
DWORD *capability)
|
|
{
|
|
HRESULT hr;
|
|
BmpDecoder *This = impl_from_IWICBitmapDecoder(iface);
|
|
|
|
TRACE("(%p,%p,%p)\n", iface, stream, capability);
|
|
|
|
if (!stream || !capability) return E_INVALIDARG;
|
|
|
|
hr = IWICBitmapDecoder_Initialize(iface, stream, WICDecodeMetadataCacheOnDemand);
|
|
if (hr != S_OK) return hr;
|
|
|
|
*capability = This->read_data_func == BmpFrameDecode_ReadUnsupported ? 0 : WICBitmapDecoderCapabilityCanDecodeAllImages;
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI BmpDecoder_Initialize(IWICBitmapDecoder *iface, IStream *pIStream,
|
|
WICDecodeOptions cacheOptions)
|
|
{
|
|
HRESULT hr;
|
|
BmpDecoder *This = impl_from_IWICBitmapDecoder(iface);
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
hr = BmpDecoder_ReadHeaders(This, pIStream);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
This->stream = pIStream;
|
|
IStream_AddRef(pIStream);
|
|
}
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI BmpDecoder_GetContainerFormat(IWICBitmapDecoder *iface,
|
|
GUID *pguidContainerFormat)
|
|
{
|
|
memcpy(pguidContainerFormat, &GUID_ContainerFormatBmp, sizeof(GUID));
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI BmpDecoder_GetDecoderInfo(IWICBitmapDecoder *iface,
|
|
IWICBitmapDecoderInfo **ppIDecoderInfo)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, ppIDecoderInfo);
|
|
|
|
return get_decoder_info(&CLSID_WICBmpDecoder, ppIDecoderInfo);
|
|
}
|
|
|
|
static HRESULT WINAPI BmpDecoder_CopyPalette(IWICBitmapDecoder *iface,
|
|
IWICPalette *pIPalette)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, pIPalette);
|
|
|
|
return WINCODEC_ERR_PALETTEUNAVAILABLE;
|
|
}
|
|
|
|
static HRESULT WINAPI BmpDecoder_GetMetadataQueryReader(IWICBitmapDecoder *iface,
|
|
IWICMetadataQueryReader **ppIMetadataQueryReader)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, ppIMetadataQueryReader);
|
|
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
|
|
}
|
|
|
|
static HRESULT WINAPI BmpDecoder_GetPreview(IWICBitmapDecoder *iface,
|
|
IWICBitmapSource **ppIBitmapSource)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, ppIBitmapSource);
|
|
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
|
|
}
|
|
|
|
static HRESULT WINAPI BmpDecoder_GetColorContexts(IWICBitmapDecoder *iface,
|
|
UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
|
|
{
|
|
TRACE("(%p,%u,%p,%p)\n", iface, cCount, ppIColorContexts, pcActualCount);
|
|
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
|
|
}
|
|
|
|
static HRESULT WINAPI BmpDecoder_GetThumbnail(IWICBitmapDecoder *iface,
|
|
IWICBitmapSource **ppIThumbnail)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, ppIThumbnail);
|
|
return WINCODEC_ERR_CODECNOTHUMBNAIL;
|
|
}
|
|
|
|
static HRESULT WINAPI BmpDecoder_GetFrameCount(IWICBitmapDecoder *iface,
|
|
UINT *pCount)
|
|
{
|
|
if (!pCount) return E_INVALIDARG;
|
|
|
|
*pCount = 1;
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI BmpDecoder_GetFrame(IWICBitmapDecoder *iface,
|
|
UINT index, IWICBitmapFrameDecode **ppIBitmapFrame)
|
|
{
|
|
BmpDecoder *This = impl_from_IWICBitmapDecoder(iface);
|
|
|
|
if (index != 0) return E_INVALIDARG;
|
|
|
|
if (!This->stream) return WINCODEC_ERR_FRAMEMISSING;
|
|
|
|
*ppIBitmapFrame = &This->IWICBitmapFrameDecode_iface;
|
|
IWICBitmapDecoder_AddRef(iface);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static const IWICBitmapDecoderVtbl BmpDecoder_Vtbl = {
|
|
BmpDecoder_QueryInterface,
|
|
BmpDecoder_AddRef,
|
|
BmpDecoder_Release,
|
|
BmpDecoder_QueryCapability,
|
|
BmpDecoder_Initialize,
|
|
BmpDecoder_GetContainerFormat,
|
|
BmpDecoder_GetDecoderInfo,
|
|
BmpDecoder_CopyPalette,
|
|
BmpDecoder_GetMetadataQueryReader,
|
|
BmpDecoder_GetPreview,
|
|
BmpDecoder_GetColorContexts,
|
|
BmpDecoder_GetThumbnail,
|
|
BmpDecoder_GetFrameCount,
|
|
BmpDecoder_GetFrame
|
|
};
|
|
|
|
static HRESULT BmpDecoder_Create(int packed, int icoframe, BmpDecoder **ppDecoder)
|
|
{
|
|
BmpDecoder *This;
|
|
|
|
This = HeapAlloc(GetProcessHeap(), 0, sizeof(BmpDecoder));
|
|
if (!This) return E_OUTOFMEMORY;
|
|
|
|
This->IWICBitmapDecoder_iface.lpVtbl = &BmpDecoder_Vtbl;
|
|
This->IWICBitmapFrameDecode_iface.lpVtbl = &BmpDecoder_FrameVtbl;
|
|
This->ref = 1;
|
|
This->initialized = FALSE;
|
|
This->stream = NULL;
|
|
This->imagedata = NULL;
|
|
InitializeCriticalSection(&This->lock);
|
|
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": BmpDecoder.lock");
|
|
This->packed = packed;
|
|
This->icoframe = icoframe;
|
|
|
|
*ppDecoder = This;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT BmpDecoder_Construct(int packed, int icoframe, REFIID iid, void** ppv)
|
|
{
|
|
BmpDecoder *This;
|
|
HRESULT ret;
|
|
|
|
TRACE("(%s,%p)\n", debugstr_guid(iid), ppv);
|
|
|
|
*ppv = NULL;
|
|
|
|
ret = BmpDecoder_Create(packed, icoframe, &This);
|
|
if (FAILED(ret)) return ret;
|
|
|
|
ret = IWICBitmapDecoder_QueryInterface(&This->IWICBitmapDecoder_iface, iid, ppv);
|
|
IWICBitmapDecoder_Release(&This->IWICBitmapDecoder_iface);
|
|
|
|
return ret;
|
|
}
|
|
|
|
HRESULT BmpDecoder_CreateInstance(REFIID iid, void** ppv)
|
|
{
|
|
return BmpDecoder_Construct(FALSE, FALSE, iid, ppv);
|
|
}
|
|
|
|
HRESULT DibDecoder_CreateInstance(REFIID iid, void** ppv)
|
|
{
|
|
return BmpDecoder_Construct(TRUE, FALSE, iid, ppv);
|
|
}
|
|
|
|
HRESULT IcoDibDecoder_CreateInstance(BmpDecoder **ppDecoder)
|
|
{
|
|
return BmpDecoder_Create(TRUE, TRUE, ppDecoder);
|
|
}
|
|
|
|
void BmpDecoder_GetWICDecoder(BmpDecoder *This, IWICBitmapDecoder **ppDecoder)
|
|
{
|
|
*ppDecoder = &This->IWICBitmapDecoder_iface;
|
|
}
|
|
|
|
/* Return the offset where the mask of an icon might be, or 0 for failure. */
|
|
void BmpDecoder_FindIconMask(BmpDecoder *This, ULONG *mask_offset, int *topdown)
|
|
{
|
|
assert(This->stream != NULL);
|
|
|
|
if (This->read_data_func == BmpFrameDecode_ReadUncompressed)
|
|
{
|
|
/* RGB or BITFIELDS data */
|
|
ULONG width, height, bytesperrow, datasize;
|
|
IWICBitmapFrameDecode_GetSize(&This->IWICBitmapFrameDecode_iface, &width, &height);
|
|
bytesperrow = (((width * This->bitsperpixel)+31)/32)*4;
|
|
datasize = bytesperrow * height;
|
|
*mask_offset = This->image_offset + datasize;
|
|
}
|
|
else
|
|
*mask_offset = 0;
|
|
|
|
*topdown = This->stride > 0;
|
|
}
|