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Sweden-Number/dlls/windowscodecs/ddsformat.c

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/*
* Copyright 2020 Ziqing Hui
*
* 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>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "objbase.h"
#include "wincodecs_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
#define DDS_MAGIC 0x20534444
#ifndef MAKEFOURCC
#define MAKEFOURCC(ch0, ch1, ch2, ch3) \
((DWORD)(BYTE)(ch0) | ((DWORD)(BYTE)(ch1) << 8) | \
((DWORD)(BYTE)(ch2) << 16) | ((DWORD)(BYTE)(ch3) << 24 ))
#endif
#define DDPF_ALPHAPIXELS 0x00000001
#define DDPF_ALPHA 0x00000002
#define DDPF_FOURCC 0x00000004
#define DDPF_PALETTEINDEXED8 0x00000020
#define DDPF_RGB 0x00000040
#define DDPF_LUMINANCE 0x00020000
#define DDPF_BUMPDUDV 0x00080000
#define DDSCAPS2_CUBEMAP 0x00000200
#define DDSCAPS2_VOLUME 0x00200000
#define DDS_DIMENSION_TEXTURE1D 2
#define DDS_DIMENSION_TEXTURE2D 3
#define DDS_DIMENSION_TEXTURE3D 4
#define DDS_RESOURCE_MISC_TEXTURECUBE 0x00000004
typedef struct {
DWORD size;
DWORD flags;
DWORD fourCC;
DWORD rgbBitCount;
DWORD rBitMask;
DWORD gBitMask;
DWORD bBitMask;
DWORD aBitMask;
} DDS_PIXELFORMAT;
typedef struct {
DWORD size;
DWORD flags;
DWORD height;
DWORD width;
DWORD pitchOrLinearSize;
DWORD depth;
DWORD mipMapCount;
DWORD reserved1[11];
DDS_PIXELFORMAT ddspf;
DWORD caps;
DWORD caps2;
DWORD caps3;
DWORD caps4;
DWORD reserved2;
} DDS_HEADER;
typedef struct {
DWORD dxgiFormat;
DWORD resourceDimension;
DWORD miscFlag;
DWORD arraySize;
DWORD miscFlags2;
} DDS_HEADER_DXT10;
typedef struct dds_info {
UINT width;
UINT height;
UINT depth;
UINT mip_levels;
UINT array_size;
UINT frame_count;
DXGI_FORMAT format;
WICDdsDimension dimension;
WICDdsAlphaMode alpha_mode;
} dds_info;
typedef struct DdsDecoder {
IWICBitmapDecoder IWICBitmapDecoder_iface;
IWICDdsDecoder IWICDdsDecoder_iface;
LONG ref;
BOOL initialized;
IStream *stream;
CRITICAL_SECTION lock;
DDS_HEADER header;
DDS_HEADER_DXT10 header_dxt10;
dds_info info;
} DdsDecoder;
typedef struct DdsFrameDecode {
IWICBitmapFrameDecode IWICBitmapFrameDecode_iface;
IWICDdsFrameDecode IWICDdsFrameDecode_iface;
LONG ref;
UINT width;
UINT height;
} DdsFrameDecode;
static HRESULT WINAPI DdsDecoder_Dds_GetFrame(IWICDdsDecoder *, UINT, UINT, UINT, IWICBitmapFrameDecode **);
static inline BOOL has_extended_header(DDS_HEADER *header)
{
return (header->ddspf.flags & DDPF_FOURCC) &&
(header->ddspf.fourCC == MAKEFOURCC('D', 'X', '1', '0'));
}
static WICDdsDimension get_dimension(DDS_HEADER *header, DDS_HEADER_DXT10 *header_dxt10)
{
if (header_dxt10) {
if (header_dxt10->miscFlag & DDS_RESOURCE_MISC_TEXTURECUBE) return WICDdsTextureCube;
switch (header_dxt10->resourceDimension)
{
case DDS_DIMENSION_TEXTURE1D: return WICDdsTexture1D;
case DDS_DIMENSION_TEXTURE2D: return WICDdsTexture2D;
case DDS_DIMENSION_TEXTURE3D: return WICDdsTexture3D;
default: return WICDdsTexture2D;
}
} else {
if (header->caps2 & DDSCAPS2_CUBEMAP) {
return WICDdsTextureCube;
} else if (header->caps2 & DDSCAPS2_VOLUME) {
return WICDdsTexture3D;
} else {
return WICDdsTexture2D;
}
}
}
static DXGI_FORMAT get_format_from_fourcc(DWORD fourcc)
{
switch (fourcc)
{
case MAKEFOURCC('D', 'X', 'T', '1'):
return DXGI_FORMAT_BC1_UNORM;
case MAKEFOURCC('D', 'X', 'T', '2'):
case MAKEFOURCC('D', 'X', 'T', '3'):
return DXGI_FORMAT_BC2_UNORM;
case MAKEFOURCC('D', 'X', 'T', '4'):
case MAKEFOURCC('D', 'X', 'T', '5'):
return DXGI_FORMAT_BC3_UNORM;
case MAKEFOURCC('D', 'X', '1', '0'):
/* format is indicated in extended header */
return DXGI_FORMAT_UNKNOWN;
default:
/* there are DDS files where fourCC is set directly to DXGI_FORMAT enumeration value */
return fourcc;
}
}
static WICDdsAlphaMode get_alpha_mode_from_fourcc(DWORD fourcc)
{
switch (fourcc)
{
case MAKEFOURCC('D', 'X', 'T', '1'):
case MAKEFOURCC('D', 'X', 'T', '2'):
case MAKEFOURCC('D', 'X', 'T', '4'):
return WICDdsAlphaModePremultiplied;
case MAKEFOURCC('D', 'X', 'T', '3'):
case MAKEFOURCC('D', 'X', 'T', '5'):
return WICDdsAlphaModeStraight;
default:
return WICDdsAlphaModeUnknown;
}
}
static void get_dds_info(dds_info* info, DDS_HEADER *header, DDS_HEADER_DXT10 *header_dxt10)
{
int i;
UINT depth;
info->width = header->width;
info->height = header->height;
info->depth = 1;
info->mip_levels = 1;
info->array_size = 1;
if (header->depth) info->depth = header->depth;
if (header->mipMapCount) info->mip_levels = header->mipMapCount;
if (has_extended_header(header)) {
if (header_dxt10->arraySize) info->array_size = header_dxt10->arraySize;
info->format = header_dxt10->dxgiFormat;
info->dimension = get_dimension(NULL, header_dxt10);
info->alpha_mode = header_dxt10->miscFlags2 & 0x00000008;
} else {
info->format = get_format_from_fourcc(header->ddspf.fourCC);
info->dimension = get_dimension(header, NULL);
info->alpha_mode = get_alpha_mode_from_fourcc(header->ddspf.fourCC);
}
/* get frame count */
if (info->depth == 1) {
info->frame_count = info->array_size * info->mip_levels;
} else {
info->frame_count = 0;
depth = info->depth;
for (i = 0; i < info->mip_levels; i++)
{
info->frame_count += depth;
if (depth > 1) depth /= 2;
}
info->frame_count *= info->array_size;
}
}
static inline DdsDecoder *impl_from_IWICBitmapDecoder(IWICBitmapDecoder *iface)
{
return CONTAINING_RECORD(iface, DdsDecoder, IWICBitmapDecoder_iface);
}
static inline DdsDecoder *impl_from_IWICDdsDecoder(IWICDdsDecoder *iface)
{
return CONTAINING_RECORD(iface, DdsDecoder, IWICDdsDecoder_iface);
}
static inline DdsFrameDecode *impl_from_IWICBitmapFrameDecode(IWICBitmapFrameDecode *iface)
{
return CONTAINING_RECORD(iface, DdsFrameDecode, IWICBitmapFrameDecode_iface);
}
static inline DdsFrameDecode *impl_from_IWICDdsFrameDecode(IWICDdsFrameDecode *iface)
{
return CONTAINING_RECORD(iface, DdsFrameDecode, IWICDdsFrameDecode_iface);
}
static HRESULT WINAPI DdsFrameDecode_QueryInterface(IWICBitmapFrameDecode *iface, REFIID iid,
void **ppv)
{
DdsFrameDecode *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->IWICBitmapFrameDecode_iface;
} else if (IsEqualGUID(&IID_IWICDdsFrameDecode, iid)) {
*ppv = &This->IWICDdsFrameDecode_iface;
} else {
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI DdsFrameDecode_AddRef(IWICBitmapFrameDecode *iface)
{
DdsFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
return ref;
}
static ULONG WINAPI DdsFrameDecode_Release(IWICBitmapFrameDecode *iface)
{
DdsFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
if (ref == 0) HeapFree(GetProcessHeap(), 0, This);
return ref;
}
static HRESULT WINAPI DdsFrameDecode_GetSize(IWICBitmapFrameDecode *iface,
UINT *puiWidth, UINT *puiHeight)
{
DdsFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
if (!puiWidth || !puiHeight) return E_INVALIDARG;
*puiWidth = This->width;
*puiHeight = This->height;
TRACE("(%p) -> (%d,%d)\n", iface, *puiWidth, *puiHeight);
return S_OK;
}
static HRESULT WINAPI DdsFrameDecode_GetPixelFormat(IWICBitmapFrameDecode *iface,
WICPixelFormatGUID *pPixelFormat)
{
FIXME("(%p,%p): stub.\n", iface, pPixelFormat);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsFrameDecode_GetResolution(IWICBitmapFrameDecode *iface,
double *pDpiX, double *pDpiY)
{
FIXME("(%p,%p,%p): stub.\n", iface, pDpiX, pDpiY);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsFrameDecode_CopyPalette(IWICBitmapFrameDecode *iface,
IWICPalette *pIPalette)
{
FIXME("(%p,%p): stub.\n", iface, pIPalette);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsFrameDecode_CopyPixels(IWICBitmapFrameDecode *iface,
const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
{
FIXME("(%p,%s,%u,%u,%p): stub.\n", iface, debug_wic_rect(prc), cbStride, cbBufferSize, pbBuffer);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsFrameDecode_GetMetadataQueryReader(IWICBitmapFrameDecode *iface,
IWICMetadataQueryReader **ppIMetadataQueryReader)
{
FIXME("(%p,%p): stub.\n", iface, ppIMetadataQueryReader);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsFrameDecode_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 DdsFrameDecode_GetThumbnail(IWICBitmapFrameDecode *iface,
IWICBitmapSource **ppIThumbnail)
{
FIXME("(%p,%p): stub.\n", iface, ppIThumbnail);
return E_NOTIMPL;
}
static const IWICBitmapFrameDecodeVtbl DdsFrameDecode_Vtbl = {
DdsFrameDecode_QueryInterface,
DdsFrameDecode_AddRef,
DdsFrameDecode_Release,
DdsFrameDecode_GetSize,
DdsFrameDecode_GetPixelFormat,
DdsFrameDecode_GetResolution,
DdsFrameDecode_CopyPalette,
DdsFrameDecode_CopyPixels,
DdsFrameDecode_GetMetadataQueryReader,
DdsFrameDecode_GetColorContexts,
DdsFrameDecode_GetThumbnail
};
static HRESULT WINAPI DdsFrameDecode_Dds_QueryInterface(IWICDdsFrameDecode *iface,
REFIID iid, void **ppv)
{
DdsFrameDecode *This = impl_from_IWICDdsFrameDecode(iface);
return DdsFrameDecode_QueryInterface(&This->IWICBitmapFrameDecode_iface, iid, ppv);
}
static ULONG WINAPI DdsFrameDecode_Dds_AddRef(IWICDdsFrameDecode *iface)
{
DdsFrameDecode *This = impl_from_IWICDdsFrameDecode(iface);
return DdsFrameDecode_AddRef(&This->IWICBitmapFrameDecode_iface);
}
static ULONG WINAPI DdsFrameDecode_Dds_Release(IWICDdsFrameDecode *iface)
{
DdsFrameDecode *This = impl_from_IWICDdsFrameDecode(iface);
return DdsFrameDecode_Release(&This->IWICBitmapFrameDecode_iface);
}
static HRESULT WINAPI DdsFrameDecode_Dds_GetSizeInBlocks(IWICDdsFrameDecode *iface,
UINT *widthInBlocks, UINT *heightInBlocks)
{
FIXME("(%p,%p,%p): stub.\n", iface, widthInBlocks, heightInBlocks);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsFrameDecode_Dds_GetFormatInfo(IWICDdsFrameDecode *iface,
WICDdsFormatInfo *formatInfo)
{
FIXME("(%p,%p): stub.\n", iface, formatInfo);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsFrameDecode_Dds_CopyBlocks(IWICDdsFrameDecode *iface,
const WICRect *boundsInBlocks, UINT stride, UINT bufferSize,
BYTE *buffer)
{
FIXME("(%p,%p,%u,%u,%p): stub.\n", iface, boundsInBlocks, stride, bufferSize, buffer);
return E_NOTIMPL;
}
static const IWICDdsFrameDecodeVtbl DdsFrameDecode_Dds_Vtbl = {
DdsFrameDecode_Dds_QueryInterface,
DdsFrameDecode_Dds_AddRef,
DdsFrameDecode_Dds_Release,
DdsFrameDecode_Dds_GetSizeInBlocks,
DdsFrameDecode_Dds_GetFormatInfo,
DdsFrameDecode_Dds_CopyBlocks
};
static HRESULT DdsFrameDecode_CreateInstance(DdsFrameDecode **frame_decode)
{
DdsFrameDecode *result;
result = HeapAlloc(GetProcessHeap(), 0, sizeof(*result));
if (!result) return E_OUTOFMEMORY;
result->IWICBitmapFrameDecode_iface.lpVtbl = &DdsFrameDecode_Vtbl;
result->IWICDdsFrameDecode_iface.lpVtbl = &DdsFrameDecode_Dds_Vtbl;
result->ref = 1;
*frame_decode = result;
return S_OK;
}
static HRESULT WINAPI DdsDecoder_QueryInterface(IWICBitmapDecoder *iface, REFIID iid,
void **ppv)
{
DdsDecoder *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 if (IsEqualIID(&IID_IWICDdsDecoder, iid)) {
*ppv = &This->IWICDdsDecoder_iface;
} else {
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI DdsDecoder_AddRef(IWICBitmapDecoder *iface)
{
DdsDecoder *This = impl_from_IWICBitmapDecoder(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
return ref;
}
static ULONG WINAPI DdsDecoder_Release(IWICBitmapDecoder *iface)
{
DdsDecoder *This = impl_from_IWICBitmapDecoder(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
if (ref == 0)
{
This->lock.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&This->lock);
if (This->stream) IStream_Release(This->stream);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI DdsDecoder_QueryCapability(IWICBitmapDecoder *iface, IStream *stream,
DWORD *capability)
{
FIXME("(%p,%p,%p): stub.\n", iface, stream, capability);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsDecoder_Initialize(IWICBitmapDecoder *iface, IStream *pIStream,
WICDecodeOptions cacheOptions)
{
DdsDecoder *This = impl_from_IWICBitmapDecoder(iface);
HRESULT hr;
LARGE_INTEGER seek;
DWORD magic;
ULONG bytesread;
TRACE("(%p,%p,%x)\n", iface, pIStream, cacheOptions);
EnterCriticalSection(&This->lock);
if (This->initialized) {
hr = WINCODEC_ERR_WRONGSTATE;
goto end;
}
seek.QuadPart = 0;
hr = IStream_Seek(pIStream, seek, SEEK_SET, NULL);
if (FAILED(hr)) goto end;
hr = IStream_Read(pIStream, &magic, sizeof(magic), &bytesread);
if (FAILED(hr)) goto end;
if (bytesread != sizeof(magic)) {
hr = WINCODEC_ERR_STREAMREAD;
goto end;
}
if (magic != DDS_MAGIC) {
hr = WINCODEC_ERR_UNKNOWNIMAGEFORMAT;
goto end;
}
hr = IStream_Read(pIStream, &This->header, sizeof(This->header), &bytesread);
if (FAILED(hr)) goto end;
if (bytesread != sizeof(This->header)) {
hr = WINCODEC_ERR_STREAMREAD;
goto end;
}
if (This->header.size != sizeof(This->header)) {
hr = WINCODEC_ERR_BADHEADER;
goto end;
}
if (has_extended_header(&This->header)) {
hr = IStream_Read(pIStream, &This->header_dxt10, sizeof(This->header_dxt10), &bytesread);
if (FAILED(hr)) goto end;
if (bytesread != sizeof(This->header_dxt10)) {
hr = WINCODEC_ERR_STREAMREAD;
goto end;
}
}
get_dds_info(&This->info, &This->header, &This->header_dxt10);
This->initialized = TRUE;
This->stream = pIStream;
IStream_AddRef(pIStream);
end:
LeaveCriticalSection(&This->lock);
return hr;
}
static HRESULT WINAPI DdsDecoder_GetContainerFormat(IWICBitmapDecoder *iface,
GUID *pguidContainerFormat)
{
TRACE("(%p,%p)\n", iface, pguidContainerFormat);
memcpy(pguidContainerFormat, &GUID_ContainerFormatDds, sizeof(GUID));
return S_OK;
}
static HRESULT WINAPI DdsDecoder_GetDecoderInfo(IWICBitmapDecoder *iface,
IWICBitmapDecoderInfo **ppIDecoderInfo)
{
TRACE("(%p,%p)\n", iface, ppIDecoderInfo);
return get_decoder_info(&CLSID_WICDdsDecoder, ppIDecoderInfo);
}
static HRESULT WINAPI DdsDecoder_CopyPalette(IWICBitmapDecoder *iface,
IWICPalette *pIPalette)
{
TRACE("(%p,%p)\n", iface, pIPalette);
return WINCODEC_ERR_PALETTEUNAVAILABLE;
}
static HRESULT WINAPI DdsDecoder_GetMetadataQueryReader(IWICBitmapDecoder *iface,
IWICMetadataQueryReader **ppIMetadataQueryReader)
{
if (!ppIMetadataQueryReader) return E_INVALIDARG;
FIXME("(%p,%p)\n", iface, ppIMetadataQueryReader);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsDecoder_GetPreview(IWICBitmapDecoder *iface,
IWICBitmapSource **ppIBitmapSource)
{
TRACE("(%p,%p)\n", iface, ppIBitmapSource);
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
}
static HRESULT WINAPI DdsDecoder_GetColorContexts(IWICBitmapDecoder *iface,
UINT cCount, IWICColorContext **ppDdslorContexts, UINT *pcActualCount)
{
TRACE("(%p,%u,%p,%p)\n", iface, cCount, ppDdslorContexts, pcActualCount);
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
}
static HRESULT WINAPI DdsDecoder_GetThumbnail(IWICBitmapDecoder *iface,
IWICBitmapSource **ppIThumbnail)
{
TRACE("(%p,%p)\n", iface, ppIThumbnail);
return WINCODEC_ERR_CODECNOTHUMBNAIL;
}
static HRESULT WINAPI DdsDecoder_GetFrameCount(IWICBitmapDecoder *iface,
UINT *pCount)
{
DdsDecoder *This = impl_from_IWICBitmapDecoder(iface);
if (!pCount) return E_INVALIDARG;
if (!This->initialized) return WINCODEC_ERR_WRONGSTATE;
EnterCriticalSection(&This->lock);
*pCount = This->info.frame_count;
LeaveCriticalSection(&This->lock);
TRACE("(%p) -> %d\n", iface, *pCount);
return S_OK;
}
static HRESULT WINAPI DdsDecoder_GetFrame(IWICBitmapDecoder *iface,
UINT index, IWICBitmapFrameDecode **ppIBitmapFrame)
{
DdsDecoder *This = impl_from_IWICBitmapDecoder(iface);
UINT frame_per_texture, array_index, mip_level, slice_index, depth;
TRACE("(%p,%u,%p)\n", iface, index, ppIBitmapFrame);
if (!ppIBitmapFrame) return E_INVALIDARG;
EnterCriticalSection(&This->lock);
if (!This->initialized) {
LeaveCriticalSection(&This->lock);
return WINCODEC_ERR_WRONGSTATE;
}
frame_per_texture = This->info.frame_count / This->info.array_size;
array_index = index / frame_per_texture;
slice_index = index % frame_per_texture;
depth = This->info.depth;
mip_level = 0;
while (slice_index >= depth)
{
slice_index -= depth;
mip_level++;
if (depth > 1) depth /= 2;
}
LeaveCriticalSection(&This->lock);
return DdsDecoder_Dds_GetFrame(&This->IWICDdsDecoder_iface, array_index, mip_level, slice_index, ppIBitmapFrame);
}
static const IWICBitmapDecoderVtbl DdsDecoder_Vtbl = {
DdsDecoder_QueryInterface,
DdsDecoder_AddRef,
DdsDecoder_Release,
DdsDecoder_QueryCapability,
DdsDecoder_Initialize,
DdsDecoder_GetContainerFormat,
DdsDecoder_GetDecoderInfo,
DdsDecoder_CopyPalette,
DdsDecoder_GetMetadataQueryReader,
DdsDecoder_GetPreview,
DdsDecoder_GetColorContexts,
DdsDecoder_GetThumbnail,
DdsDecoder_GetFrameCount,
DdsDecoder_GetFrame
};
static HRESULT WINAPI DdsDecoder_Dds_QueryInterface(IWICDdsDecoder *iface,
REFIID iid, void **ppv)
{
DdsDecoder *This = impl_from_IWICDdsDecoder(iface);
return DdsDecoder_QueryInterface(&This->IWICBitmapDecoder_iface, iid, ppv);
}
static ULONG WINAPI DdsDecoder_Dds_AddRef(IWICDdsDecoder *iface)
{
DdsDecoder *This = impl_from_IWICDdsDecoder(iface);
return DdsDecoder_AddRef(&This->IWICBitmapDecoder_iface);
}
static ULONG WINAPI DdsDecoder_Dds_Release(IWICDdsDecoder *iface)
{
DdsDecoder *This = impl_from_IWICDdsDecoder(iface);
return DdsDecoder_Release(&This->IWICBitmapDecoder_iface);
}
static HRESULT WINAPI DdsDecoder_Dds_GetParameters(IWICDdsDecoder *iface,
WICDdsParameters *parameters)
{
DdsDecoder *This = impl_from_IWICDdsDecoder(iface);
HRESULT hr;
if (!parameters) return E_INVALIDARG;
EnterCriticalSection(&This->lock);
if (!This->initialized) {
hr = WINCODEC_ERR_WRONGSTATE;
goto end;
}
parameters->Width = This->info.width;
parameters->Height = This->info.height;
parameters->Depth = This->info.depth;
parameters->MipLevels = This->info.mip_levels;
parameters->ArraySize = This->info.array_size;
parameters->DxgiFormat = This->info.format;
parameters->Dimension = This->info.dimension;
parameters->AlphaMode = This->info.alpha_mode;
TRACE("(%p) -> (%dx%d depth=%d mipLevels=%d arraySize=%d dxgiFormat=0x%x dimension=0x%x alphaMode=0x%x)\n",
iface, parameters->Width, parameters->Height, parameters->Depth, parameters->MipLevels,
parameters->ArraySize, parameters->DxgiFormat, parameters->Dimension, parameters->AlphaMode);
hr = S_OK;
end:
LeaveCriticalSection(&This->lock);
return hr;
}
static HRESULT WINAPI DdsDecoder_Dds_GetFrame(IWICDdsDecoder *iface,
UINT arrayIndex, UINT mipLevel, UINT sliceIndex,
IWICBitmapFrameDecode **bitmapFrame)
{
DdsDecoder *This = impl_from_IWICDdsDecoder(iface);
HRESULT hr;
UINT width = 0, height = 0;
int j;
DdsFrameDecode *frame_decode;
TRACE("(%p,%u,%u,%u,%p)\n", iface, arrayIndex, mipLevel, sliceIndex, bitmapFrame);
if (!bitmapFrame) return E_INVALIDARG;
EnterCriticalSection(&This->lock);
if (!This->initialized) {
hr = WINCODEC_ERR_WRONGSTATE;
goto end;
}
if (arrayIndex >= This->info.array_size || mipLevel >= This->info.mip_levels || sliceIndex >= This->info.depth) {
hr = E_INVALIDARG;
goto end;
}
width = This->info.width;
height = This->info.height;
for (j = 0; j < mipLevel; j++)
{
if (width > 1) width /= 2;
if (height > 1) height /= 2;
}
hr = DdsFrameDecode_CreateInstance(&frame_decode);
if (hr != S_OK) goto end;
frame_decode->width = width;
frame_decode->height = height;
*bitmapFrame = &frame_decode->IWICBitmapFrameDecode_iface;
hr = S_OK;
end:
LeaveCriticalSection(&This->lock);
return hr;
}
static const IWICDdsDecoderVtbl DdsDecoder_Dds_Vtbl = {
DdsDecoder_Dds_QueryInterface,
DdsDecoder_Dds_AddRef,
DdsDecoder_Dds_Release,
DdsDecoder_Dds_GetParameters,
DdsDecoder_Dds_GetFrame
};
HRESULT DdsDecoder_CreateInstance(REFIID iid, void** ppv)
{
DdsDecoder *This;
HRESULT ret;
TRACE("(%s,%p)\n", debugstr_guid(iid), ppv);
*ppv = NULL;
This = HeapAlloc(GetProcessHeap(), 0, sizeof(DdsDecoder));
if (!This) return E_OUTOFMEMORY;
This->IWICBitmapDecoder_iface.lpVtbl = &DdsDecoder_Vtbl;
This->IWICDdsDecoder_iface.lpVtbl = &DdsDecoder_Dds_Vtbl;
This->ref = 1;
This->initialized = FALSE;
This->stream = NULL;
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": DdsDecoder.lock");
ret = IWICBitmapDecoder_QueryInterface(&This->IWICBitmapDecoder_iface, iid, ppv);
IWICBitmapDecoder_Release(&This->IWICBitmapDecoder_iface);
return ret;
}
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