980 lines
29 KiB
C
980 lines
29 KiB
C
/*
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* Copyright 2010 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 "config.h"
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#include "wine/port.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 "objbase.h"
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#include "wincodec.h"
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#include "wincodecs_private.h"
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#include "wine/debug.h"
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#include "wine/library.h"
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WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
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#include "pshpack1.h"
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typedef struct {
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BYTE id_length;
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BYTE colormap_type;
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BYTE image_type;
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/* Colormap Specification */
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WORD colormap_firstentry;
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WORD colormap_length;
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BYTE colormap_entrysize;
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/* Image Specification */
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WORD xorigin;
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WORD yorigin;
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WORD width;
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WORD height;
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BYTE depth;
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BYTE image_descriptor;
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} tga_header;
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#define IMAGETYPE_COLORMAPPED 1
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#define IMAGETYPE_TRUECOLOR 2
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#define IMAGETYPE_GRAYSCALE 3
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#define IMAGETYPE_RLE 8
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#define IMAGE_ATTRIBUTE_BITCOUNT_MASK 0xf
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#define IMAGE_RIGHTTOLEFT 0x10
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#define IMAGE_TOPTOBOTTOM 0x20
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typedef struct {
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DWORD extension_area_offset;
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DWORD developer_directory_offset;
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char magic[18];
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} tga_footer;
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static const BYTE tga_footer_magic[18] = "TRUEVISION-XFILE.";
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typedef struct {
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WORD size;
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char author_name[41];
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char author_comments[324];
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WORD timestamp[6];
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char job_name[41];
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WORD job_timestamp[6];
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char software_id[41];
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WORD software_version;
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char software_version_letter;
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DWORD key_color;
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WORD pixel_width;
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WORD pixel_height;
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WORD gamma_numerator;
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WORD gamma_denominator;
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DWORD color_correction_offset;
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DWORD thumbnail_offset;
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DWORD scanline_offset;
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BYTE attributes_type;
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} tga_extension_area;
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#define ATTRIBUTE_NO_ALPHA 0
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#define ATTRIBUTE_UNDEFINED 1
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#define ATTRIBUTE_UNDEFINED_PRESERVE 2
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#define ATTRIBUTE_ALPHA 3
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#define ATTRIBUTE_PALPHA 4
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#include "poppack.h"
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typedef struct {
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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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tga_header header;
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tga_extension_area extension_area;
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BYTE *imagebits;
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BYTE *origin;
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int stride;
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ULONG id_offset;
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ULONG colormap_length;
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ULONG colormap_offset;
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ULONG image_offset;
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ULONG extension_area_offset;
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ULONG developer_directory_offset;
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CRITICAL_SECTION lock;
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} TgaDecoder;
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static inline TgaDecoder *impl_from_IWICBitmapDecoder(IWICBitmapDecoder *iface)
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{
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return CONTAINING_RECORD(iface, TgaDecoder, IWICBitmapDecoder_iface);
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}
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static inline TgaDecoder *impl_from_IWICBitmapFrameDecode(IWICBitmapFrameDecode *iface)
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{
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return CONTAINING_RECORD(iface, TgaDecoder, IWICBitmapFrameDecode_iface);
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}
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static HRESULT WINAPI TgaDecoder_QueryInterface(IWICBitmapDecoder *iface, REFIID iid,
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void **ppv)
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{
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TgaDecoder *This = impl_from_IWICBitmapDecoder(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) || IsEqualIID(&IID_IWICBitmapDecoder, iid))
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{
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*ppv = &This->IWICBitmapDecoder_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 TgaDecoder_AddRef(IWICBitmapDecoder *iface)
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{
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TgaDecoder *This = impl_from_IWICBitmapDecoder(iface);
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ULONG ref = InterlockedIncrement(&This->ref);
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TRACE("(%p) refcount=%u\n", iface, ref);
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return ref;
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}
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static ULONG WINAPI TgaDecoder_Release(IWICBitmapDecoder *iface)
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{
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TgaDecoder *This = impl_from_IWICBitmapDecoder(iface);
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ULONG ref = InterlockedDecrement(&This->ref);
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TRACE("(%p) refcount=%u\n", iface, ref);
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if (ref == 0)
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{
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This->lock.DebugInfo->Spare[0] = 0;
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DeleteCriticalSection(&This->lock);
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if (This->stream)
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IStream_Release(This->stream);
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HeapFree(GetProcessHeap(), 0, This->imagebits);
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HeapFree(GetProcessHeap(), 0, This);
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}
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return ref;
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}
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static HRESULT WINAPI TgaDecoder_QueryCapability(IWICBitmapDecoder *iface, IStream *stream,
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DWORD *capability)
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{
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HRESULT hr;
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TRACE("(%p,%p,%p)\n", iface, stream, capability);
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if (!stream || !capability) return E_INVALIDARG;
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hr = IWICBitmapDecoder_Initialize(iface, stream, WICDecodeMetadataCacheOnDemand);
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if (hr != S_OK) return hr;
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*capability = WICBitmapDecoderCapabilityCanDecodeAllImages |
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WICBitmapDecoderCapabilityCanDecodeSomeImages;
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return S_OK;
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}
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static HRESULT WINAPI TgaDecoder_Initialize(IWICBitmapDecoder *iface, IStream *pIStream,
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WICDecodeOptions cacheOptions)
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{
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TgaDecoder *This = impl_from_IWICBitmapDecoder(iface);
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HRESULT hr=S_OK;
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DWORD bytesread;
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LARGE_INTEGER seek;
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tga_footer footer;
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int attribute_bitcount;
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int mapped_depth=0;
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TRACE("(%p,%p,%u)\n", iface, pIStream, cacheOptions);
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EnterCriticalSection(&This->lock);
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if (This->initialized)
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{
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hr = WINCODEC_ERR_WRONGSTATE;
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goto end;
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}
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seek.QuadPart = 0;
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hr = IStream_Seek(pIStream, seek, STREAM_SEEK_SET, NULL);
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if (FAILED(hr)) goto end;
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hr = IStream_Read(pIStream, &This->header, sizeof(tga_header), &bytesread);
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if (SUCCEEDED(hr) && bytesread != sizeof(tga_header))
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{
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TRACE("got only %u bytes\n", bytesread);
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hr = E_FAIL;
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}
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if (FAILED(hr)) goto end;
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TRACE("imagetype=%u, colormap type=%u, depth=%u, image descriptor=0x%x\n",
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This->header.image_type, This->header.colormap_type,
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This->header.depth, This->header.image_descriptor);
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/* Sanity checking. Since TGA has no clear identifying markers, we need
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* to be careful to not load a non-TGA image. */
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switch (This->header.image_type)
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{
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case IMAGETYPE_COLORMAPPED:
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case IMAGETYPE_COLORMAPPED|IMAGETYPE_RLE:
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if (This->header.colormap_type != 1)
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hr = E_FAIL;
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mapped_depth = This->header.colormap_entrysize;
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break;
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case IMAGETYPE_TRUECOLOR:
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case IMAGETYPE_TRUECOLOR|IMAGETYPE_RLE:
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if (This->header.colormap_type != 0 && This->header.colormap_type != 1)
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hr = E_FAIL;
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mapped_depth = This->header.depth;
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break;
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case IMAGETYPE_GRAYSCALE:
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case IMAGETYPE_GRAYSCALE|IMAGETYPE_RLE:
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if (This->header.colormap_type != 0)
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hr = E_FAIL;
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mapped_depth = 0;
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break;
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default:
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hr = E_FAIL;
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}
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if (This->header.depth != 8 && This->header.depth != 16 &&
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This->header.depth != 24 && This->header.depth != 32)
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hr = E_FAIL;
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if ((This->header.image_descriptor & 0xc0) != 0)
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hr = E_FAIL;
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attribute_bitcount = This->header.image_descriptor & IMAGE_ATTRIBUTE_BITCOUNT_MASK;
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if (attribute_bitcount &&
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!((mapped_depth == 32 && attribute_bitcount == 8) ||
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(mapped_depth == 16 && attribute_bitcount == 1)))
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hr = E_FAIL;
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if (FAILED(hr))
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{
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WARN("bad tga header\n");
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goto end;
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}
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/* Locate data in the file based on the header. */
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This->id_offset = sizeof(tga_header);
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This->colormap_offset = This->id_offset + This->header.id_length;
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if (This->header.colormap_type == 1)
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This->colormap_length = ((This->header.colormap_entrysize+7)/8) * This->header.colormap_length;
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else
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This->colormap_length = 0;
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This->image_offset = This->colormap_offset + This->colormap_length;
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/* Read footer if there is one */
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seek.QuadPart = -sizeof(tga_footer);
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hr = IStream_Seek(pIStream, seek, STREAM_SEEK_END, NULL);
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if (SUCCEEDED(hr)) {
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hr = IStream_Read(pIStream, &footer, sizeof(tga_footer), &bytesread);
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if (SUCCEEDED(hr) && bytesread != sizeof(tga_footer))
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{
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TRACE("got only %u footer bytes\n", bytesread);
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hr = E_FAIL;
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}
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if (memcmp(footer.magic, tga_footer_magic, sizeof(tga_footer_magic)) == 0)
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{
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This->extension_area_offset = footer.extension_area_offset;
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This->developer_directory_offset = footer.developer_directory_offset;
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}
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else
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{
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This->extension_area_offset = 0;
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This->developer_directory_offset = 0;
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}
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}
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else
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{
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/* File is too small to have a footer. */
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This->extension_area_offset = 0;
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This->developer_directory_offset = 0;
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hr = S_OK;
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}
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if (This->extension_area_offset)
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{
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seek.QuadPart = This->extension_area_offset;
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hr = IStream_Seek(pIStream, seek, STREAM_SEEK_SET, NULL);
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if (FAILED(hr)) goto end;
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hr = IStream_Read(pIStream, &This->extension_area, sizeof(tga_extension_area), &bytesread);
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if (SUCCEEDED(hr) && bytesread != sizeof(tga_extension_area))
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{
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TRACE("got only %u extension area bytes\n", bytesread);
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hr = E_FAIL;
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}
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if (SUCCEEDED(hr) && This->extension_area.size < 495)
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{
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TRACE("extension area is only %u bytes long\n", This->extension_area.size);
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hr = E_FAIL;
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}
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if (FAILED(hr)) goto end;
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}
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IStream_AddRef(pIStream);
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This->stream = pIStream;
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This->initialized = TRUE;
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end:
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LeaveCriticalSection(&This->lock);
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return hr;
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}
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static HRESULT WINAPI TgaDecoder_GetContainerFormat(IWICBitmapDecoder *iface,
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GUID *pguidContainerFormat)
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{
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memcpy(pguidContainerFormat, &GUID_WineContainerFormatTga, sizeof(GUID));
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return S_OK;
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}
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static HRESULT WINAPI TgaDecoder_GetDecoderInfo(IWICBitmapDecoder *iface,
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IWICBitmapDecoderInfo **ppIDecoderInfo)
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{
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HRESULT hr;
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IWICComponentInfo *compinfo;
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TRACE("(%p,%p)\n", iface, ppIDecoderInfo);
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hr = CreateComponentInfo(&CLSID_WineTgaDecoder, &compinfo);
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if (FAILED(hr)) return hr;
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hr = IWICComponentInfo_QueryInterface(compinfo, &IID_IWICBitmapDecoderInfo,
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(void**)ppIDecoderInfo);
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IWICComponentInfo_Release(compinfo);
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return hr;
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}
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static HRESULT WINAPI TgaDecoder_CopyPalette(IWICBitmapDecoder *iface,
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IWICPalette *pIPalette)
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{
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FIXME("(%p,%p): stub\n", iface, pIPalette);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI TgaDecoder_GetMetadataQueryReader(IWICBitmapDecoder *iface,
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IWICMetadataQueryReader **ppIMetadataQueryReader)
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{
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FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryReader);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI TgaDecoder_GetPreview(IWICBitmapDecoder *iface,
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IWICBitmapSource **ppIBitmapSource)
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{
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FIXME("(%p,%p): stub\n", iface, ppIBitmapSource);
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return WINCODEC_ERR_UNSUPPORTEDOPERATION;
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}
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static HRESULT WINAPI TgaDecoder_GetColorContexts(IWICBitmapDecoder *iface,
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UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
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{
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FIXME("(%p,%u,%p,%p): stub\n", iface, cCount, ppIColorContexts, pcActualCount);
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return WINCODEC_ERR_UNSUPPORTEDOPERATION;
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}
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static HRESULT WINAPI TgaDecoder_GetThumbnail(IWICBitmapDecoder *iface,
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IWICBitmapSource **ppIThumbnail)
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{
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FIXME("(%p,%p): stub\n", iface, ppIThumbnail);
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return WINCODEC_ERR_CODECNOTHUMBNAIL;
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}
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static HRESULT WINAPI TgaDecoder_GetFrameCount(IWICBitmapDecoder *iface,
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UINT *pCount)
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{
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if (!pCount) return E_INVALIDARG;
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*pCount = 1;
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return S_OK;
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}
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static HRESULT WINAPI TgaDecoder_GetFrame(IWICBitmapDecoder *iface,
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UINT index, IWICBitmapFrameDecode **ppIBitmapFrame)
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{
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TgaDecoder *This = impl_from_IWICBitmapDecoder(iface);
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TRACE("(%p,%p)\n", iface, ppIBitmapFrame);
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if (!This->initialized) return WINCODEC_ERR_FRAMEMISSING;
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if (index != 0) return E_INVALIDARG;
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IWICBitmapDecoder_AddRef(iface);
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*ppIBitmapFrame = &This->IWICBitmapFrameDecode_iface;
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return S_OK;
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}
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static const IWICBitmapDecoderVtbl TgaDecoder_Vtbl = {
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TgaDecoder_QueryInterface,
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TgaDecoder_AddRef,
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TgaDecoder_Release,
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TgaDecoder_QueryCapability,
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TgaDecoder_Initialize,
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TgaDecoder_GetContainerFormat,
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TgaDecoder_GetDecoderInfo,
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TgaDecoder_CopyPalette,
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TgaDecoder_GetMetadataQueryReader,
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TgaDecoder_GetPreview,
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TgaDecoder_GetColorContexts,
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TgaDecoder_GetThumbnail,
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TgaDecoder_GetFrameCount,
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TgaDecoder_GetFrame
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};
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static HRESULT WINAPI TgaDecoder_Frame_QueryInterface(IWICBitmapFrameDecode *iface, REFIID iid,
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void **ppv)
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{
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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 = 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 TgaDecoder_Frame_AddRef(IWICBitmapFrameDecode *iface)
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{
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TgaDecoder *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 TgaDecoder_Frame_Release(IWICBitmapFrameDecode *iface)
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{
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TgaDecoder *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 TgaDecoder_Frame_GetSize(IWICBitmapFrameDecode *iface,
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UINT *puiWidth, UINT *puiHeight)
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{
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TgaDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
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*puiWidth = This->header.width;
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*puiHeight = This->header.height;
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TRACE("(%p)->(%u,%u)\n", iface, *puiWidth, *puiHeight);
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return S_OK;
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}
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static HRESULT WINAPI TgaDecoder_Frame_GetPixelFormat(IWICBitmapFrameDecode *iface,
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WICPixelFormatGUID *pPixelFormat)
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{
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TgaDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
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int attribute_bitcount;
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byte attribute_type;
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TRACE("(%p,%p)\n", iface, pPixelFormat);
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|
attribute_bitcount = This->header.image_descriptor & IMAGE_ATTRIBUTE_BITCOUNT_MASK;
|
|
|
|
if (attribute_bitcount && This->extension_area_offset)
|
|
attribute_type = This->extension_area.attributes_type;
|
|
else if (attribute_bitcount)
|
|
attribute_type = ATTRIBUTE_ALPHA;
|
|
else
|
|
attribute_type = ATTRIBUTE_NO_ALPHA;
|
|
|
|
switch (This->header.image_type & ~IMAGETYPE_RLE)
|
|
{
|
|
case IMAGETYPE_COLORMAPPED:
|
|
switch (This->header.depth)
|
|
{
|
|
case 8:
|
|
memcpy(pPixelFormat, &GUID_WICPixelFormat8bppIndexed, sizeof(GUID));
|
|
break;
|
|
default:
|
|
FIXME("Unhandled indexed color depth %u\n", This->header.depth);
|
|
return E_NOTIMPL;
|
|
}
|
|
break;
|
|
case IMAGETYPE_TRUECOLOR:
|
|
switch (This->header.depth)
|
|
{
|
|
case 16:
|
|
switch (attribute_type)
|
|
{
|
|
case ATTRIBUTE_NO_ALPHA:
|
|
case ATTRIBUTE_UNDEFINED:
|
|
case ATTRIBUTE_UNDEFINED_PRESERVE:
|
|
memcpy(pPixelFormat, &GUID_WICPixelFormat16bppBGR555, sizeof(GUID));
|
|
break;
|
|
case ATTRIBUTE_ALPHA:
|
|
case ATTRIBUTE_PALPHA:
|
|
memcpy(pPixelFormat, &GUID_WICPixelFormat16bppBGRA5551, sizeof(GUID));
|
|
break;
|
|
default:
|
|
FIXME("Unhandled 16-bit attribute type %u\n", attribute_type);
|
|
return E_NOTIMPL;
|
|
}
|
|
break;
|
|
case 24:
|
|
memcpy(pPixelFormat, &GUID_WICPixelFormat24bppBGR, sizeof(GUID));
|
|
break;
|
|
case 32:
|
|
switch (attribute_type)
|
|
{
|
|
case ATTRIBUTE_NO_ALPHA:
|
|
case ATTRIBUTE_UNDEFINED:
|
|
case ATTRIBUTE_UNDEFINED_PRESERVE:
|
|
memcpy(pPixelFormat, &GUID_WICPixelFormat32bppBGR, sizeof(GUID));
|
|
break;
|
|
case ATTRIBUTE_ALPHA:
|
|
memcpy(pPixelFormat, &GUID_WICPixelFormat32bppBGRA, sizeof(GUID));
|
|
break;
|
|
case ATTRIBUTE_PALPHA:
|
|
memcpy(pPixelFormat, &GUID_WICPixelFormat32bppPBGRA, sizeof(GUID));
|
|
break;
|
|
default:
|
|
FIXME("Unhandled 32-bit attribute type %u\n", attribute_type);
|
|
return E_NOTIMPL;
|
|
}
|
|
break;
|
|
default:
|
|
FIXME("Unhandled truecolor depth %u\n", This->header.depth);
|
|
return E_NOTIMPL;
|
|
}
|
|
break;
|
|
case IMAGETYPE_GRAYSCALE:
|
|
switch (This->header.depth)
|
|
{
|
|
case 8:
|
|
memcpy(pPixelFormat, &GUID_WICPixelFormat8bppGray, sizeof(GUID));
|
|
break;
|
|
case 16:
|
|
memcpy(pPixelFormat, &GUID_WICPixelFormat16bppGray, sizeof(GUID));
|
|
break;
|
|
default:
|
|
FIXME("Unhandled grayscale depth %u\n", This->header.depth);
|
|
return E_NOTIMPL;
|
|
}
|
|
break;
|
|
default:
|
|
ERR("Unknown image type %u\n", This->header.image_type);
|
|
return E_FAIL;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI TgaDecoder_Frame_GetResolution(IWICBitmapFrameDecode *iface,
|
|
double *pDpiX, double *pDpiY)
|
|
{
|
|
FIXME("(%p,%p,%p): stub\n", iface, pDpiX, pDpiY);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static HRESULT WINAPI TgaDecoder_Frame_CopyPalette(IWICBitmapFrameDecode *iface,
|
|
IWICPalette *pIPalette)
|
|
{
|
|
TgaDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
|
|
HRESULT hr=S_OK;
|
|
WICColor colors[256], *color;
|
|
BYTE *colormap_data;
|
|
WORD *wcolormap_data;
|
|
DWORD *dwcolormap_data;
|
|
LARGE_INTEGER seek;
|
|
ULONG bytesread;
|
|
int depth, attribute_bitcount, attribute_type;
|
|
int i;
|
|
|
|
TRACE("(%p,%p)\n", iface, pIPalette);
|
|
|
|
if (!This->colormap_length)
|
|
{
|
|
WARN("no colormap present in this file\n");
|
|
return WINCODEC_ERR_PALETTEUNAVAILABLE;
|
|
}
|
|
|
|
if (This->header.colormap_firstentry + This->header.colormap_length > 256)
|
|
{
|
|
FIXME("cannot read colormap with %i entries starting at %i\n",
|
|
This->header.colormap_firstentry + This->header.colormap_length,
|
|
This->header.colormap_firstentry);
|
|
return E_FAIL;
|
|
}
|
|
|
|
colormap_data = HeapAlloc(GetProcessHeap(), 0, This->colormap_length);
|
|
if (!colormap_data) return E_OUTOFMEMORY;
|
|
|
|
wcolormap_data = (WORD*)colormap_data;
|
|
dwcolormap_data = (DWORD*)colormap_data;
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
seek.QuadPart = This->colormap_offset;
|
|
hr = IStream_Seek(This->stream, seek, STREAM_SEEK_SET, NULL);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
hr = IStream_Read(This->stream, colormap_data, This->colormap_length, &bytesread);
|
|
if (SUCCEEDED(hr) && bytesread != This->colormap_length)
|
|
{
|
|
WARN("expected %i bytes in colormap, got %i\n", This->colormap_length, bytesread);
|
|
hr = E_FAIL;
|
|
}
|
|
}
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
attribute_bitcount = This->header.image_descriptor & IMAGE_ATTRIBUTE_BITCOUNT_MASK;
|
|
|
|
if (attribute_bitcount && This->extension_area_offset)
|
|
attribute_type = This->extension_area.attributes_type;
|
|
else if (attribute_bitcount)
|
|
attribute_type = ATTRIBUTE_ALPHA;
|
|
else
|
|
attribute_type = ATTRIBUTE_NO_ALPHA;
|
|
|
|
depth = This->header.colormap_entrysize;
|
|
if (depth == 15)
|
|
{
|
|
depth = 16;
|
|
attribute_type = ATTRIBUTE_NO_ALPHA;
|
|
}
|
|
|
|
memset(colors, 0, sizeof(colors));
|
|
|
|
color = &colors[This->header.colormap_firstentry];
|
|
|
|
/* Colormap entries can be in any truecolor format, and we have to convert them. */
|
|
switch (depth)
|
|
{
|
|
case 16:
|
|
switch (attribute_type)
|
|
{
|
|
case ATTRIBUTE_NO_ALPHA:
|
|
case ATTRIBUTE_UNDEFINED:
|
|
case ATTRIBUTE_UNDEFINED_PRESERVE:
|
|
for (i=0; i<This->header.colormap_length; i++)
|
|
{
|
|
WORD srcval = wcolormap_data[i];
|
|
*color++=0xff000000 | /* constant 255 alpha */
|
|
((srcval << 9) & 0xf80000) | /* r */
|
|
((srcval << 4) & 0x070000) | /* r - 3 bits */
|
|
((srcval << 6) & 0x00f800) | /* g */
|
|
((srcval << 1) & 0x000700) | /* g - 3 bits */
|
|
((srcval << 3) & 0x0000f8) | /* b */
|
|
((srcval >> 2) & 0x000007); /* b - 3 bits */
|
|
}
|
|
break;
|
|
case ATTRIBUTE_ALPHA:
|
|
case ATTRIBUTE_PALPHA:
|
|
for (i=0; i<This->header.colormap_length; i++)
|
|
{
|
|
WORD srcval = wcolormap_data[i];
|
|
*color++=((srcval & 0x8000) ? 0xff000000 : 0) | /* alpha */
|
|
((srcval << 9) & 0xf80000) | /* r */
|
|
((srcval << 4) & 0x070000) | /* r - 3 bits */
|
|
((srcval << 6) & 0x00f800) | /* g */
|
|
((srcval << 1) & 0x000700) | /* g - 3 bits */
|
|
((srcval << 3) & 0x0000f8) | /* b */
|
|
((srcval >> 2) & 0x000007); /* b - 3 bits */
|
|
}
|
|
break;
|
|
default:
|
|
FIXME("Unhandled 16-bit attribute type %u\n", attribute_type);
|
|
hr = E_NOTIMPL;
|
|
}
|
|
break;
|
|
case 24:
|
|
for (i=0; i<This->header.colormap_length; i++)
|
|
{
|
|
*color++=0xff000000 | /* alpha */
|
|
colormap_data[i*3+2] | /* red */
|
|
colormap_data[i*3+1] | /* green */
|
|
colormap_data[i*3]; /* blue */
|
|
}
|
|
break;
|
|
case 32:
|
|
switch (attribute_type)
|
|
{
|
|
case ATTRIBUTE_NO_ALPHA:
|
|
case ATTRIBUTE_UNDEFINED:
|
|
case ATTRIBUTE_UNDEFINED_PRESERVE:
|
|
for (i=0; i<This->header.colormap_length; i++)
|
|
*color++=dwcolormap_data[i]|0xff000000;
|
|
break;
|
|
case ATTRIBUTE_ALPHA:
|
|
for (i=0; i<This->header.colormap_length; i++)
|
|
*color++=dwcolormap_data[i];
|
|
break;
|
|
case ATTRIBUTE_PALPHA:
|
|
/* FIXME: Unpremultiply alpha */
|
|
default:
|
|
FIXME("Unhandled 16-bit attribute type %u\n", attribute_type);
|
|
hr = E_NOTIMPL;
|
|
}
|
|
break;
|
|
default:
|
|
FIXME("Unhandled truecolor depth %u\n", This->header.depth);
|
|
hr = E_NOTIMPL;
|
|
}
|
|
}
|
|
|
|
HeapFree(GetProcessHeap(), 0, colormap_data);
|
|
|
|
if (SUCCEEDED(hr))
|
|
hr = IWICPalette_InitializeCustom(pIPalette, colors, 256);
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT TgaDecoder_ReadRLE(TgaDecoder *This, BYTE *imagebits, int datasize)
|
|
{
|
|
int i=0, j, bytesperpixel;
|
|
ULONG bytesread;
|
|
HRESULT hr=S_OK;
|
|
|
|
bytesperpixel = This->header.depth / 8;
|
|
|
|
while (i<datasize)
|
|
{
|
|
BYTE rc;
|
|
int count, size;
|
|
BYTE pixeldata[4];
|
|
|
|
hr = IStream_Read(This->stream, &rc, 1, &bytesread);
|
|
if (bytesread != 1) hr = E_FAIL;
|
|
if (FAILED(hr)) break;
|
|
|
|
count = (rc&0x7f)+1;
|
|
size = count * bytesperpixel;
|
|
|
|
if (size + i > datasize)
|
|
{
|
|
WARN("RLE packet too large\n");
|
|
hr = E_FAIL;
|
|
break;
|
|
}
|
|
|
|
if (rc&0x80)
|
|
{
|
|
/* Run-length packet */
|
|
hr = IStream_Read(This->stream, pixeldata, bytesperpixel, &bytesread);
|
|
if (bytesread != bytesperpixel) hr = E_FAIL;
|
|
if (FAILED(hr)) break;
|
|
|
|
if (bytesperpixel == 1)
|
|
memset(&imagebits[i], pixeldata[0], count);
|
|
else
|
|
{
|
|
for (j=0; j<count; j++)
|
|
memcpy(&imagebits[i+j*bytesperpixel], pixeldata, bytesperpixel);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Raw packet */
|
|
hr = IStream_Read(This->stream, &imagebits[i], size, &bytesread);
|
|
if (bytesread != size) hr = E_FAIL;
|
|
if (FAILED(hr)) break;
|
|
}
|
|
|
|
i += size;
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT TgaDecoder_ReadImage(TgaDecoder *This)
|
|
{
|
|
HRESULT hr=S_OK;
|
|
int datasize;
|
|
LARGE_INTEGER seek;
|
|
ULONG bytesread;
|
|
|
|
if (This->imagebits)
|
|
return S_OK;
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
if (!This->imagebits)
|
|
{
|
|
if (This->header.image_descriptor & IMAGE_RIGHTTOLEFT)
|
|
{
|
|
FIXME("Right to left image reading not implemented\n");
|
|
hr = E_NOTIMPL;
|
|
}
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
datasize = This->header.width * This->header.height * (This->header.depth / 8);
|
|
This->imagebits = HeapAlloc(GetProcessHeap(), 0, datasize);
|
|
if (!This->imagebits) hr = E_OUTOFMEMORY;
|
|
}
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
seek.QuadPart = This->image_offset;
|
|
hr = IStream_Seek(This->stream, seek, STREAM_SEEK_SET, NULL);
|
|
}
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
if (This->header.image_type & IMAGETYPE_RLE)
|
|
{
|
|
hr = TgaDecoder_ReadRLE(This, This->imagebits, datasize);
|
|
}
|
|
else
|
|
{
|
|
hr = IStream_Read(This->stream, This->imagebits, datasize, &bytesread);
|
|
if (SUCCEEDED(hr) && bytesread != datasize)
|
|
hr = E_FAIL;
|
|
}
|
|
}
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
if (This->header.image_descriptor & IMAGE_TOPTOBOTTOM)
|
|
{
|
|
This->origin = This->imagebits;
|
|
This->stride = This->header.width * (This->header.depth / 8);
|
|
}
|
|
else
|
|
{
|
|
This->stride = -This->header.width * (This->header.depth / 8);
|
|
This->origin = This->imagebits + This->header.width * (This->header.height - 1) * (This->header.depth / 8);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
HeapFree(GetProcessHeap(), 0, This->imagebits);
|
|
This->imagebits = NULL;
|
|
}
|
|
}
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI TgaDecoder_Frame_CopyPixels(IWICBitmapFrameDecode *iface,
|
|
const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
|
|
{
|
|
TgaDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p,%p,%u,%u,%p)\n", iface, prc, cbStride, cbBufferSize, pbBuffer);
|
|
|
|
hr = TgaDecoder_ReadImage(This);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
hr = copy_pixels(This->header.depth, This->origin,
|
|
This->header.width, This->header.height, This->stride,
|
|
prc, cbStride, cbBufferSize, pbBuffer);
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI TgaDecoder_Frame_GetMetadataQueryReader(IWICBitmapFrameDecode *iface,
|
|
IWICMetadataQueryReader **ppIMetadataQueryReader)
|
|
{
|
|
FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryReader);
|
|
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
|
|
}
|
|
|
|
static HRESULT WINAPI TgaDecoder_Frame_GetColorContexts(IWICBitmapFrameDecode *iface,
|
|
UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
|
|
{
|
|
FIXME("(%p,%u,%p,%p): stub\n", iface, cCount, ppIColorContexts, pcActualCount);
|
|
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
|
|
}
|
|
|
|
static HRESULT WINAPI TgaDecoder_Frame_GetThumbnail(IWICBitmapFrameDecode *iface,
|
|
IWICBitmapSource **ppIThumbnail)
|
|
{
|
|
FIXME("(%p,%p): stub\n", iface, ppIThumbnail);
|
|
return WINCODEC_ERR_CODECNOTHUMBNAIL;
|
|
}
|
|
|
|
static const IWICBitmapFrameDecodeVtbl TgaDecoder_Frame_Vtbl = {
|
|
TgaDecoder_Frame_QueryInterface,
|
|
TgaDecoder_Frame_AddRef,
|
|
TgaDecoder_Frame_Release,
|
|
TgaDecoder_Frame_GetSize,
|
|
TgaDecoder_Frame_GetPixelFormat,
|
|
TgaDecoder_Frame_GetResolution,
|
|
TgaDecoder_Frame_CopyPalette,
|
|
TgaDecoder_Frame_CopyPixels,
|
|
TgaDecoder_Frame_GetMetadataQueryReader,
|
|
TgaDecoder_Frame_GetColorContexts,
|
|
TgaDecoder_Frame_GetThumbnail
|
|
};
|
|
|
|
HRESULT TgaDecoder_CreateInstance(REFIID iid, void** ppv)
|
|
{
|
|
TgaDecoder *This;
|
|
HRESULT ret;
|
|
|
|
TRACE("(%s,%p)\n", debugstr_guid(iid), ppv);
|
|
|
|
*ppv = NULL;
|
|
|
|
This = HeapAlloc(GetProcessHeap(), 0, sizeof(TgaDecoder));
|
|
if (!This) return E_OUTOFMEMORY;
|
|
|
|
This->IWICBitmapDecoder_iface.lpVtbl = &TgaDecoder_Vtbl;
|
|
This->IWICBitmapFrameDecode_iface.lpVtbl = &TgaDecoder_Frame_Vtbl;
|
|
This->ref = 1;
|
|
This->initialized = FALSE;
|
|
This->stream = NULL;
|
|
This->imagebits = NULL;
|
|
InitializeCriticalSection(&This->lock);
|
|
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": TgaDecoder.lock");
|
|
|
|
ret = IWICBitmapDecoder_QueryInterface(&This->IWICBitmapDecoder_iface, iid, ppv);
|
|
IWICBitmapDecoder_Release(&This->IWICBitmapDecoder_iface);
|
|
|
|
return ret;
|
|
}
|