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Sweden-Number/dlls/windowscodecs/tiffformat.c

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/*
* Copyright 2010 Vincent Povirk for CodeWeavers
*
* 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 "config.h"
#include "wine/port.h"
#include <stdarg.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_TIFFIO_H
#include <tiffio.h>
#endif
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "objbase.h"
#include "wincodec.h"
#include "wincodecs_private.h"
#include "wine/debug.h"
#include "wine/library.h"
WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
#ifdef SONAME_LIBTIFF
static CRITICAL_SECTION init_tiff_cs;
static CRITICAL_SECTION_DEBUG init_tiff_cs_debug =
{
0, 0, &init_tiff_cs,
{ &init_tiff_cs_debug.ProcessLocksList,
&init_tiff_cs_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": init_tiff_cs") }
};
static CRITICAL_SECTION init_tiff_cs = { &init_tiff_cs_debug, -1, 0, 0, 0, 0 };
static void *libtiff_handle;
#define MAKE_FUNCPTR(f) static typeof(f) * p##f
MAKE_FUNCPTR(TIFFClientOpen);
MAKE_FUNCPTR(TIFFClose);
MAKE_FUNCPTR(TIFFCurrentDirectory);
MAKE_FUNCPTR(TIFFGetField);
MAKE_FUNCPTR(TIFFIsByteSwapped);
MAKE_FUNCPTR(TIFFReadDirectory);
MAKE_FUNCPTR(TIFFReadEncodedStrip);
MAKE_FUNCPTR(TIFFReadEncodedTile);
MAKE_FUNCPTR(TIFFSetDirectory);
#undef MAKE_FUNCPTR
static void *load_libtiff(void)
{
void *result;
EnterCriticalSection(&init_tiff_cs);
if (!libtiff_handle &&
(libtiff_handle = wine_dlopen(SONAME_LIBTIFF, RTLD_NOW, NULL, 0)) != NULL)
{
#define LOAD_FUNCPTR(f) \
if((p##f = wine_dlsym(libtiff_handle, #f, NULL, 0)) == NULL) { \
ERR("failed to load symbol %s\n", #f); \
libtiff_handle = NULL; \
LeaveCriticalSection(&init_tiff_cs); \
return NULL; \
}
LOAD_FUNCPTR(TIFFClientOpen);
LOAD_FUNCPTR(TIFFClose);
LOAD_FUNCPTR(TIFFCurrentDirectory);
LOAD_FUNCPTR(TIFFGetField);
LOAD_FUNCPTR(TIFFIsByteSwapped);
LOAD_FUNCPTR(TIFFReadDirectory);
LOAD_FUNCPTR(TIFFReadEncodedStrip);
LOAD_FUNCPTR(TIFFReadEncodedTile);
LOAD_FUNCPTR(TIFFSetDirectory);
#undef LOAD_FUNCPTR
}
result = libtiff_handle;
LeaveCriticalSection(&init_tiff_cs);
return result;
}
static tsize_t tiff_stream_read(thandle_t client_data, tdata_t data, tsize_t size)
{
IStream *stream = (IStream*)client_data;
ULONG bytes_read;
HRESULT hr;
hr = IStream_Read(stream, data, size, &bytes_read);
if (FAILED(hr)) bytes_read = 0;
return bytes_read;
}
static tsize_t tiff_stream_write(thandle_t client_data, tdata_t data, tsize_t size)
{
IStream *stream = (IStream*)client_data;
ULONG bytes_written;
HRESULT hr;
hr = IStream_Write(stream, data, size, &bytes_written);
if (FAILED(hr)) bytes_written = 0;
return bytes_written;
}
static toff_t tiff_stream_seek(thandle_t client_data, toff_t offset, int whence)
{
IStream *stream = (IStream*)client_data;
LARGE_INTEGER move;
DWORD origin;
ULARGE_INTEGER new_position;
HRESULT hr;
move.QuadPart = offset;
switch (whence)
{
case SEEK_SET:
origin = STREAM_SEEK_SET;
break;
case SEEK_CUR:
origin = STREAM_SEEK_CUR;
break;
case SEEK_END:
origin = STREAM_SEEK_END;
break;
default:
ERR("unknown whence value %i\n", whence);
return -1;
}
hr = IStream_Seek(stream, move, origin, &new_position);
if (SUCCEEDED(hr)) return new_position.QuadPart;
else return -1;
}
static int tiff_stream_close(thandle_t client_data)
{
/* Caller is responsible for releasing the stream object. */
return 0;
}
static toff_t tiff_stream_size(thandle_t client_data)
{
IStream *stream = (IStream*)client_data;
STATSTG statstg;
HRESULT hr;
hr = IStream_Stat(stream, &statstg, STATFLAG_NONAME);
if (SUCCEEDED(hr)) return statstg.cbSize.QuadPart;
else return -1;
}
static int tiff_stream_map(thandle_t client_data, tdata_t *addr, toff_t *size)
{
/* Cannot mmap streams */
return 0;
}
static void tiff_stream_unmap(thandle_t client_data, tdata_t addr, toff_t size)
{
/* No need to ever do this, since we can't map things. */
}
static TIFF* tiff_open_stream(IStream *stream, const char *mode)
{
LARGE_INTEGER zero;
zero.QuadPart = 0;
IStream_Seek(stream, zero, STREAM_SEEK_SET, NULL);
return pTIFFClientOpen("<IStream object>", mode, stream, tiff_stream_read,
tiff_stream_write, tiff_stream_seek, tiff_stream_close,
tiff_stream_size, tiff_stream_map, tiff_stream_unmap);
}
typedef struct {
IWICBitmapDecoder IWICBitmapDecoder_iface;
LONG ref;
IStream *stream;
CRITICAL_SECTION lock; /* Must be held when tiff is used or initiailzed is set */
TIFF *tiff;
BOOL initialized;
} TiffDecoder;
typedef struct {
const WICPixelFormatGUID *format;
int bps;
int samples;
int bpp;
int planar;
int indexed;
int reverse_bgr;
int invert_grayscale;
UINT width, height;
UINT tile_width, tile_height;
UINT tile_stride;
UINT tile_size;
int tiled;
UINT tiles_across;
} tiff_decode_info;
typedef struct {
IWICBitmapFrameDecode IWICBitmapFrameDecode_iface;
LONG ref;
TiffDecoder *parent;
UINT index;
tiff_decode_info decode_info;
INT cached_tile_x, cached_tile_y;
BYTE *cached_tile;
} TiffFrameDecode;
static const IWICBitmapFrameDecodeVtbl TiffFrameDecode_Vtbl;
static inline TiffDecoder *impl_from_IWICBitmapDecoder(IWICBitmapDecoder *iface)
{
return CONTAINING_RECORD(iface, TiffDecoder, IWICBitmapDecoder_iface);
}
static inline TiffFrameDecode *impl_from_IWICBitmapFrameDecode(IWICBitmapFrameDecode *iface)
{
return CONTAINING_RECORD(iface, TiffFrameDecode, IWICBitmapFrameDecode_iface);
}
static HRESULT tiff_get_decode_info(TIFF *tiff, tiff_decode_info *decode_info)
{
uint16 photometric, bps, samples, planar;
uint16 extra_sample_count, *extra_samples;
int ret;
decode_info->indexed = 0;
decode_info->reverse_bgr = 0;
decode_info->invert_grayscale = 0;
decode_info->tiled = 0;
ret = pTIFFGetField(tiff, TIFFTAG_PHOTOMETRIC, &photometric);
if (!ret)
{
WARN("missing PhotometricInterpretation tag\n");
return E_FAIL;
}
ret = pTIFFGetField(tiff, TIFFTAG_BITSPERSAMPLE, &bps);
if (!ret) bps = 1;
decode_info->bps = bps;
ret = pTIFFGetField(tiff, TIFFTAG_SAMPLESPERPIXEL, &samples);
if (!ret) samples = 1;
decode_info->samples = samples;
if (samples == 1)
planar = 1;
else
{
ret = pTIFFGetField(tiff, TIFFTAG_PLANARCONFIG, &planar);
if (!ret) planar = 1;
if (planar != 1)
{
FIXME("unhandled planar configuration %u\n", planar);
return E_FAIL;
}
}
decode_info->planar = planar;
switch(photometric)
{
case 0: /* WhiteIsZero */
decode_info->invert_grayscale = 1;
case 1: /* BlackIsZero */
if (samples != 1)
{
FIXME("unhandled grayscale sample count %u\n", samples);
return E_FAIL;
}
decode_info->bpp = bps;
switch (bps)
{
case 1:
decode_info->format = &GUID_WICPixelFormatBlackWhite;
break;
case 4:
decode_info->format = &GUID_WICPixelFormat4bppGray;
break;
case 8:
decode_info->format = &GUID_WICPixelFormat8bppGray;
break;
default:
FIXME("unhandled greyscale bit count %u\n", bps);
return E_FAIL;
}
break;
case 2: /* RGB */
decode_info->bpp = bps * samples;
if (samples == 4)
{
ret = pTIFFGetField(tiff, TIFFTAG_EXTRASAMPLES, &extra_sample_count, &extra_samples);
if (!ret)
{
WARN("Cannot get extra sample type for RGB data, ret=%i count=%i\n", ret, extra_sample_count);
return E_FAIL;
}
}
else if (samples != 3)
{
FIXME("unhandled RGB sample count %u\n", samples);
return E_FAIL;
}
switch(bps)
{
case 8:
decode_info->reverse_bgr = 1;
if (samples == 3)
decode_info->format = &GUID_WICPixelFormat24bppBGR;
else
switch(extra_samples[0])
{
case 0: /* Unspecified data */
decode_info->format = &GUID_WICPixelFormat32bppBGR;
break;
case 1: /* Associated (pre-multiplied) alpha data */
decode_info->format = &GUID_WICPixelFormat32bppPBGRA;
break;
case 2: /* Unassociated alpha data */
decode_info->format = &GUID_WICPixelFormat32bppBGRA;
break;
default:
FIXME("unhandled extra sample type %i\n", extra_samples[0]);
return E_FAIL;
}
break;
case 16:
if (samples == 3)
decode_info->format = &GUID_WICPixelFormat48bppRGB;
else
switch(extra_samples[0])
{
case 0: /* Unspecified data */
/* decode_info->format = &GUID_WICPixelFormat64bppRGB; */
FIXME("64-bit RGB is unsupported\n");
return E_FAIL;
case 1: /* Associated (pre-multiplied) alpha data */
decode_info->format = &GUID_WICPixelFormat64bppPRGBA;
break;
case 2: /* Unassociated alpha data */
decode_info->format = &GUID_WICPixelFormat64bppRGBA;
break;
default:
FIXME("unhandled extra sample type %i\n", extra_samples[0]);
return E_FAIL;
}
break;
default:
FIXME("unhandled RGB bit count %u\n", bps);
return E_FAIL;
}
break;
case 3: /* RGB Palette */
if (samples != 1)
{
FIXME("unhandled indexed sample count %u\n", samples);
return E_FAIL;
}
decode_info->indexed = 1;
decode_info->bpp = bps;
switch (bps)
{
case 4:
decode_info->format = &GUID_WICPixelFormat4bppIndexed;
break;
case 8:
decode_info->format = &GUID_WICPixelFormat8bppIndexed;
break;
default:
FIXME("unhandled indexed bit count %u\n", bps);
return E_FAIL;
}
break;
case 4: /* Transparency mask */
case 5: /* CMYK */
case 6: /* YCbCr */
case 8: /* CIELab */
default:
FIXME("unhandled PhotometricInterpretation %u\n", photometric);
return E_FAIL;
}
ret = pTIFFGetField(tiff, TIFFTAG_IMAGEWIDTH, &decode_info->width);
if (!ret)
{
WARN("missing image width\n");
return E_FAIL;
}
ret = pTIFFGetField(tiff, TIFFTAG_IMAGELENGTH, &decode_info->height);
if (!ret)
{
WARN("missing image length\n");
return E_FAIL;
}
if ((ret = pTIFFGetField(tiff, TIFFTAG_TILEWIDTH, &decode_info->tile_width)))
{
decode_info->tiled = 1;
if (!ret)
{
WARN("missing tile width\n");
return E_FAIL;
}
ret = pTIFFGetField(tiff, TIFFTAG_TILELENGTH, &decode_info->tile_height);
if (!ret)
{
WARN("missing tile height\n");
return E_FAIL;
}
decode_info->tile_stride = ((decode_info->bpp * decode_info->tile_width + 7)/8);
decode_info->tile_size = decode_info->tile_height * decode_info->tile_stride;
decode_info->tiles_across = (decode_info->width + decode_info->tile_width - 1) / decode_info->tile_width;
}
else if ((ret = pTIFFGetField(tiff, TIFFTAG_ROWSPERSTRIP, &decode_info->tile_height)))
{
if (decode_info->tile_height > decode_info->height)
decode_info->tile_height = decode_info->height;
decode_info->tile_width = decode_info->width;
decode_info->tile_stride = ((decode_info->bpp * decode_info->tile_width + 7)/8);
decode_info->tile_size = decode_info->tile_height * decode_info->tile_stride;
}
else
{
FIXME("missing RowsPerStrip value\n");
return E_FAIL;
}
return S_OK;
}
static HRESULT WINAPI TiffDecoder_QueryInterface(IWICBitmapDecoder *iface, REFIID iid,
void **ppv)
{
TiffDecoder *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;
}
else
{
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI TiffDecoder_AddRef(IWICBitmapDecoder *iface)
{
TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
return ref;
}
static ULONG WINAPI TiffDecoder_Release(IWICBitmapDecoder *iface)
{
TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
if (ref == 0)
{
if (This->tiff) pTIFFClose(This->tiff);
if (This->stream) IStream_Release(This->stream);
This->lock.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&This->lock);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI TiffDecoder_QueryCapability(IWICBitmapDecoder *iface, IStream *pIStream,
DWORD *pdwCapability)
{
FIXME("(%p,%p,%p): stub\n", iface, pIStream, pdwCapability);
return E_NOTIMPL;
}
static HRESULT WINAPI TiffDecoder_Initialize(IWICBitmapDecoder *iface, IStream *pIStream,
WICDecodeOptions cacheOptions)
{
TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
TIFF *tiff;
HRESULT hr=S_OK;
TRACE("(%p,%p,%x): stub\n", iface, pIStream, cacheOptions);
EnterCriticalSection(&This->lock);
if (This->initialized)
{
hr = WINCODEC_ERR_WRONGSTATE;
goto exit;
}
tiff = tiff_open_stream(pIStream, "r");
if (!tiff)
{
hr = E_FAIL;
goto exit;
}
This->tiff = tiff;
This->stream = pIStream;
IStream_AddRef(pIStream);
This->initialized = TRUE;
exit:
LeaveCriticalSection(&This->lock);
return hr;
}
static HRESULT WINAPI TiffDecoder_GetContainerFormat(IWICBitmapDecoder *iface,
GUID *pguidContainerFormat)
{
memcpy(pguidContainerFormat, &GUID_ContainerFormatTiff, sizeof(GUID));
return S_OK;
}
static HRESULT WINAPI TiffDecoder_GetDecoderInfo(IWICBitmapDecoder *iface,
IWICBitmapDecoderInfo **ppIDecoderInfo)
{
FIXME("(%p,%p): stub\n", iface, ppIDecoderInfo);
return E_NOTIMPL;
}
static HRESULT WINAPI TiffDecoder_CopyPalette(IWICBitmapDecoder *iface,
IWICPalette *pIPalette)
{
FIXME("(%p,%p): stub\n", iface, pIPalette);
return E_NOTIMPL;
}
static HRESULT WINAPI TiffDecoder_GetMetadataQueryReader(IWICBitmapDecoder *iface,
IWICMetadataQueryReader **ppIMetadataQueryReader)
{
FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryReader);
return E_NOTIMPL;
}
static HRESULT WINAPI TiffDecoder_GetPreview(IWICBitmapDecoder *iface,
IWICBitmapSource **ppIBitmapSource)
{
FIXME("(%p,%p): stub\n", iface, ppIBitmapSource);
return E_NOTIMPL;
}
static HRESULT WINAPI TiffDecoder_GetColorContexts(IWICBitmapDecoder *iface,
UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
{
FIXME("(%p,%u,%p,%p)\n", iface, cCount, ppIColorContexts, pcActualCount);
return E_NOTIMPL;
}
static HRESULT WINAPI TiffDecoder_GetThumbnail(IWICBitmapDecoder *iface,
IWICBitmapSource **ppIThumbnail)
{
TRACE("(%p,%p)\n", iface, ppIThumbnail);
return WINCODEC_ERR_CODECNOTHUMBNAIL;
}
static HRESULT WINAPI TiffDecoder_GetFrameCount(IWICBitmapDecoder *iface,
UINT *pCount)
{
TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
if (!This->tiff)
{
WARN("(%p) <-- WINCODEC_ERR_WRONGSTATE\n", iface);
return WINCODEC_ERR_WRONGSTATE;
}
EnterCriticalSection(&This->lock);
while (pTIFFReadDirectory(This->tiff)) { }
*pCount = pTIFFCurrentDirectory(This->tiff)+1;
LeaveCriticalSection(&This->lock);
TRACE("(%p) <-- %i\n", iface, *pCount);
return S_OK;
}
static HRESULT WINAPI TiffDecoder_GetFrame(IWICBitmapDecoder *iface,
UINT index, IWICBitmapFrameDecode **ppIBitmapFrame)
{
TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
TiffFrameDecode *result;
int res;
tiff_decode_info decode_info;
HRESULT hr;
TRACE("(%p,%u,%p)\n", iface, index, ppIBitmapFrame);
if (!This->tiff)
return WINCODEC_ERR_WRONGSTATE;
EnterCriticalSection(&This->lock);
res = pTIFFSetDirectory(This->tiff, index);
if (!res) hr = E_INVALIDARG;
else hr = tiff_get_decode_info(This->tiff, &decode_info);
LeaveCriticalSection(&This->lock);
if (SUCCEEDED(hr))
{
result = HeapAlloc(GetProcessHeap(), 0, sizeof(TiffFrameDecode));
if (result)
{
result->IWICBitmapFrameDecode_iface.lpVtbl = &TiffFrameDecode_Vtbl;
result->ref = 1;
result->parent = This;
result->index = index;
result->decode_info = decode_info;
result->cached_tile_x = -1;
result->cached_tile = HeapAlloc(GetProcessHeap(), 0, decode_info.tile_size);
if (result->cached_tile)
*ppIBitmapFrame = (IWICBitmapFrameDecode*)result;
else
{
hr = E_OUTOFMEMORY;
HeapFree(GetProcessHeap(), 0, result);
}
}
else hr = E_OUTOFMEMORY;
}
if (FAILED(hr)) *ppIBitmapFrame = NULL;
return hr;
}
static const IWICBitmapDecoderVtbl TiffDecoder_Vtbl = {
TiffDecoder_QueryInterface,
TiffDecoder_AddRef,
TiffDecoder_Release,
TiffDecoder_QueryCapability,
TiffDecoder_Initialize,
TiffDecoder_GetContainerFormat,
TiffDecoder_GetDecoderInfo,
TiffDecoder_CopyPalette,
TiffDecoder_GetMetadataQueryReader,
TiffDecoder_GetPreview,
TiffDecoder_GetColorContexts,
TiffDecoder_GetThumbnail,
TiffDecoder_GetFrameCount,
TiffDecoder_GetFrame
};
static HRESULT WINAPI TiffFrameDecode_QueryInterface(IWICBitmapFrameDecode *iface, REFIID iid,
void **ppv)
{
TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
if (!ppv) return E_INVALIDARG;
if (IsEqualIID(&IID_IUnknown, iid) ||
IsEqualIID(&IID_IWICBitmapSource, iid) ||
IsEqualIID(&IID_IWICBitmapFrameDecode, iid))
{
*ppv = This;
}
else
{
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI TiffFrameDecode_AddRef(IWICBitmapFrameDecode *iface)
{
TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
return ref;
}
static ULONG WINAPI TiffFrameDecode_Release(IWICBitmapFrameDecode *iface)
{
TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
if (ref == 0)
{
HeapFree(GetProcessHeap(), 0, This->cached_tile);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI TiffFrameDecode_GetSize(IWICBitmapFrameDecode *iface,
UINT *puiWidth, UINT *puiHeight)
{
TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
*puiWidth = This->decode_info.width;
*puiHeight = This->decode_info.height;
TRACE("(%p) <-- %ux%u\n", iface, *puiWidth, *puiHeight);
return S_OK;
}
static HRESULT WINAPI TiffFrameDecode_GetPixelFormat(IWICBitmapFrameDecode *iface,
WICPixelFormatGUID *pPixelFormat)
{
TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
memcpy(pPixelFormat, This->decode_info.format, sizeof(GUID));
TRACE("(%p) <-- %s\n", This, debugstr_guid(This->decode_info.format));
return S_OK;
}
static HRESULT WINAPI TiffFrameDecode_GetResolution(IWICBitmapFrameDecode *iface,
double *pDpiX, double *pDpiY)
{
FIXME("(%p,%p,%p)\n", iface, pDpiX, pDpiY);
return E_NOTIMPL;
}
static HRESULT WINAPI TiffFrameDecode_CopyPalette(IWICBitmapFrameDecode *iface,
IWICPalette *pIPalette)
{
TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
uint16 *red, *green, *blue;
WICColor colors[256];
int color_count, ret, i;
TRACE("(%p,%p)\n", iface, pIPalette);
color_count = 1<<This->decode_info.bps;
EnterCriticalSection(&This->parent->lock);
ret = pTIFFGetField(This->parent->tiff, TIFFTAG_COLORMAP, &red, &green, &blue);
LeaveCriticalSection(&This->parent->lock);
if (!ret)
{
WARN("Couldn't read color map\n");
return E_FAIL;
}
for (i=0; i<color_count; i++)
{
colors[i] = 0xff000000 |
((red[i]<<8) & 0xff0000) |
(green[i] & 0xff00) |
((blue[i]>>8) & 0xff);
}
return IWICPalette_InitializeCustom(pIPalette, colors, color_count);
}
static HRESULT TiffFrameDecode_ReadTile(TiffFrameDecode *This, UINT tile_x, UINT tile_y)
{
HRESULT hr=S_OK;
tsize_t ret;
int swap_bytes;
swap_bytes = pTIFFIsByteSwapped(This->parent->tiff);
ret = pTIFFSetDirectory(This->parent->tiff, This->index);
if (ret == -1)
hr = E_FAIL;
if (hr == S_OK)
{
if (This->decode_info.tiled)
{
ret = pTIFFReadEncodedTile(This->parent->tiff, tile_x + tile_y * This->decode_info.tiles_across, This->cached_tile, This->decode_info.tile_size);
}
else
{
ret = pTIFFReadEncodedStrip(This->parent->tiff, tile_y, This->cached_tile, This->decode_info.tile_size);
}
if (ret == -1)
hr = E_FAIL;
}
if (hr == S_OK && This->decode_info.reverse_bgr)
{
if (This->decode_info.bps == 8)
{
UINT sample_count = This->decode_info.samples;
reverse_bgr8(sample_count, This->cached_tile, This->decode_info.tile_width,
This->decode_info.tile_height, This->decode_info.tile_width * sample_count);
}
}
if (hr == S_OK && swap_bytes && This->decode_info.bps > 8)
{
UINT row, i, samples_per_row;
BYTE *sample, temp;
samples_per_row = This->decode_info.tile_width * This->decode_info.samples;
switch(This->decode_info.bps)
{
case 16:
for (row=0; row<This->decode_info.tile_height; row++)
{
sample = This->cached_tile + row * This->decode_info.tile_stride;
for (i=0; i<samples_per_row; i++)
{
temp = sample[1];
sample[1] = sample[0];
sample[0] = temp;
sample += 2;
}
}
break;
default:
ERR("unhandled bps for byte swap %u\n", This->decode_info.bps);
return E_FAIL;
}
}
if (hr == S_OK && This->decode_info.invert_grayscale)
{
BYTE *byte, *end;
if (This->decode_info.samples != 1)
{
ERR("cannot invert grayscale image with %u samples\n", This->decode_info.samples);
return E_FAIL;
}
end = This->cached_tile+This->decode_info.tile_size;
for (byte = This->cached_tile; byte != end; byte++)
*byte = ~(*byte);
}
if (hr == S_OK)
{
This->cached_tile_x = tile_x;
This->cached_tile_y = tile_y;
}
return hr;
}
static HRESULT WINAPI TiffFrameDecode_CopyPixels(IWICBitmapFrameDecode *iface,
const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
{
TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
UINT min_tile_x, max_tile_x, min_tile_y, max_tile_y;
UINT tile_x, tile_y;
WICRect rc;
HRESULT hr=S_OK;
BYTE *dst_tilepos;
UINT bytesperrow;
WICRect rect;
TRACE("(%p,%p,%u,%u,%p)\n", iface, prc, cbStride, cbBufferSize, pbBuffer);
if (!prc)
{
rect.X = 0;
rect.Y = 0;
rect.Width = This->decode_info.width;
rect.Height = This->decode_info.height;
prc = &rect;
}
else
{
if (prc->X < 0 || prc->Y < 0 || prc->X+prc->Width > This->decode_info.width ||
prc->Y+prc->Height > This->decode_info.height)
return E_INVALIDARG;
}
bytesperrow = ((This->decode_info.bpp * prc->Width)+7)/8;
if (cbStride < bytesperrow)
return E_INVALIDARG;
if ((cbStride * prc->Height) > cbBufferSize)
return E_INVALIDARG;
min_tile_x = prc->X / This->decode_info.tile_width;
min_tile_y = prc->Y / This->decode_info.tile_height;
max_tile_x = (prc->X+prc->Width-1) / This->decode_info.tile_width;
max_tile_y = (prc->Y+prc->Height-1) / This->decode_info.tile_height;
EnterCriticalSection(&This->parent->lock);
for (tile_x=min_tile_x; tile_x <= max_tile_x; tile_x++)
{
for (tile_y=min_tile_y; tile_y <= max_tile_y; tile_y++)
{
if (tile_x != This->cached_tile_x || tile_y != This->cached_tile_y)
{
hr = TiffFrameDecode_ReadTile(This, tile_x, tile_y);
}
if (SUCCEEDED(hr))
{
if (prc->X < tile_x * This->decode_info.tile_width)
rc.X = 0;
else
rc.X = prc->X - tile_x * This->decode_info.tile_width;
if (prc->Y < tile_y * This->decode_info.tile_height)
rc.Y = 0;
else
rc.Y = prc->Y - tile_y * This->decode_info.tile_height;
if (prc->X+prc->Width > (tile_x+1) * This->decode_info.tile_width)
rc.Width = This->decode_info.tile_width - rc.X;
else if (prc->X < tile_x * This->decode_info.tile_width)
rc.Width = prc->Width + prc->X - tile_x * This->decode_info.tile_width;
else
rc.Width = prc->Width;
if (prc->Y+prc->Height > (tile_y+1) * This->decode_info.tile_height)
rc.Height = This->decode_info.tile_height - rc.Y;
else if (prc->Y < tile_y * This->decode_info.tile_height)
rc.Height = prc->Height + prc->Y - tile_y * This->decode_info.tile_height;
else
rc.Height = prc->Height;
dst_tilepos = pbBuffer + (cbStride * ((rc.Y + tile_y * This->decode_info.tile_height) - prc->Y)) +
((This->decode_info.bpp * ((rc.X + tile_x * This->decode_info.tile_width) - prc->X) + 7) / 8);
hr = copy_pixels(This->decode_info.bpp, This->cached_tile,
This->decode_info.tile_width, This->decode_info.tile_height, This->decode_info.tile_stride,
&rc, cbStride, cbBufferSize, dst_tilepos);
}
if (FAILED(hr))
{
LeaveCriticalSection(&This->parent->lock);
TRACE("<-- 0x%x\n", hr);
return hr;
}
}
}
LeaveCriticalSection(&This->parent->lock);
return S_OK;
}
static HRESULT WINAPI TiffFrameDecode_GetMetadataQueryReader(IWICBitmapFrameDecode *iface,
IWICMetadataQueryReader **ppIMetadataQueryReader)
{
FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryReader);
return E_NOTIMPL;
}
static HRESULT WINAPI TiffFrameDecode_GetColorContexts(IWICBitmapFrameDecode *iface,
UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
{
FIXME("(%p,%u,%p,%p): stub\n", iface, cCount, ppIColorContexts, pcActualCount);
return E_NOTIMPL;
}
static HRESULT WINAPI TiffFrameDecode_GetThumbnail(IWICBitmapFrameDecode *iface,
IWICBitmapSource **ppIThumbnail)
{
FIXME("(%p,%p): stub\n", iface, ppIThumbnail);
return E_NOTIMPL;
}
static const IWICBitmapFrameDecodeVtbl TiffFrameDecode_Vtbl = {
TiffFrameDecode_QueryInterface,
TiffFrameDecode_AddRef,
TiffFrameDecode_Release,
TiffFrameDecode_GetSize,
TiffFrameDecode_GetPixelFormat,
TiffFrameDecode_GetResolution,
TiffFrameDecode_CopyPalette,
TiffFrameDecode_CopyPixels,
TiffFrameDecode_GetMetadataQueryReader,
TiffFrameDecode_GetColorContexts,
TiffFrameDecode_GetThumbnail
};
HRESULT TiffDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
{
HRESULT ret;
TiffDecoder *This;
TRACE("(%p,%s,%p)\n", pUnkOuter, debugstr_guid(iid), ppv);
*ppv = NULL;
if (pUnkOuter) return CLASS_E_NOAGGREGATION;
if (!load_libtiff())
{
ERR("Failed reading TIFF because unable to load %s\n",SONAME_LIBTIFF);
return E_FAIL;
}
This = HeapAlloc(GetProcessHeap(), 0, sizeof(TiffDecoder));
if (!This) return E_OUTOFMEMORY;
This->IWICBitmapDecoder_iface.lpVtbl = &TiffDecoder_Vtbl;
This->ref = 1;
This->stream = NULL;
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": TiffDecoder.lock");
This->tiff = NULL;
This->initialized = FALSE;
ret = IUnknown_QueryInterface((IUnknown*)This, iid, ppv);
IUnknown_Release((IUnknown*)This);
return ret;
}
#else /* !SONAME_LIBTIFF */
HRESULT TiffDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
{
ERR("Trying to load TIFF picture, but Wine was compiled without TIFF support.\n");
return E_FAIL;
}
#endif
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