2191 lines
62 KiB
C
2191 lines
62 KiB
C
/*
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* Copyright 2009 Vincent Povirk for CodeWeavers
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* Copyright 2016 Dmitry Timoshkov
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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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#ifdef HAVE_PNG_H
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#include <png.h>
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#endif
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#define NONAMELESSUNION
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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 "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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static inline ULONG read_ulong_be(BYTE* data)
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{
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return data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
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}
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static HRESULT read_png_chunk(IStream *stream, BYTE *type, BYTE **data, ULONG *data_size)
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{
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BYTE header[8];
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HRESULT hr;
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ULONG bytesread;
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hr = IStream_Read(stream, header, 8, &bytesread);
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if (FAILED(hr) || bytesread < 8)
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{
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if (SUCCEEDED(hr))
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hr = E_FAIL;
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return hr;
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}
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*data_size = read_ulong_be(&header[0]);
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memcpy(type, &header[4], 4);
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if (data)
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{
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*data = HeapAlloc(GetProcessHeap(), 0, *data_size);
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if (!*data)
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return E_OUTOFMEMORY;
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hr = IStream_Read(stream, *data, *data_size, &bytesread);
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if (FAILED(hr) || bytesread < *data_size)
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{
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if (SUCCEEDED(hr))
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hr = E_FAIL;
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HeapFree(GetProcessHeap(), 0, *data);
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*data = NULL;
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return hr;
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}
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/* Windows ignores CRC of the chunk */
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}
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return S_OK;
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}
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static HRESULT LoadTextMetadata(IStream *stream, const GUID *preferred_vendor,
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DWORD persist_options, MetadataItem **items, DWORD *item_count)
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{
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HRESULT hr;
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BYTE type[4];
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BYTE *data;
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ULONG data_size;
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ULONG name_len, value_len;
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BYTE *name_end_ptr;
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LPSTR name, value;
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MetadataItem *result;
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hr = read_png_chunk(stream, type, &data, &data_size);
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if (FAILED(hr)) return hr;
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name_end_ptr = memchr(data, 0, data_size);
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name_len = name_end_ptr - data;
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if (!name_end_ptr || name_len > 79)
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{
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HeapFree(GetProcessHeap(), 0, data);
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return E_FAIL;
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}
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value_len = data_size - name_len - 1;
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result = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(MetadataItem));
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name = HeapAlloc(GetProcessHeap(), 0, name_len + 1);
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value = HeapAlloc(GetProcessHeap(), 0, value_len + 1);
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if (!result || !name || !value)
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{
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HeapFree(GetProcessHeap(), 0, data);
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HeapFree(GetProcessHeap(), 0, result);
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HeapFree(GetProcessHeap(), 0, name);
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HeapFree(GetProcessHeap(), 0, value);
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return E_OUTOFMEMORY;
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}
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PropVariantInit(&result[0].schema);
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PropVariantInit(&result[0].id);
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PropVariantInit(&result[0].value);
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memcpy(name, data, name_len + 1);
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memcpy(value, name_end_ptr + 1, value_len);
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value[value_len] = 0;
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result[0].id.vt = VT_LPSTR;
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result[0].id.u.pszVal = name;
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result[0].value.vt = VT_LPSTR;
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result[0].value.u.pszVal = value;
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*items = result;
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*item_count = 1;
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HeapFree(GetProcessHeap(), 0, data);
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return S_OK;
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}
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static const MetadataHandlerVtbl TextReader_Vtbl = {
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0,
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&CLSID_WICPngTextMetadataReader,
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LoadTextMetadata
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};
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HRESULT PngTextReader_CreateInstance(REFIID iid, void** ppv)
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{
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return MetadataReader_Create(&TextReader_Vtbl, iid, ppv);
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}
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static HRESULT LoadGamaMetadata(IStream *stream, const GUID *preferred_vendor,
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DWORD persist_options, MetadataItem **items, DWORD *item_count)
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{
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HRESULT hr;
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BYTE type[4];
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BYTE *data;
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ULONG data_size;
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ULONG gamma;
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static const WCHAR ImageGamma[] = {'I','m','a','g','e','G','a','m','m','a',0};
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LPWSTR name;
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MetadataItem *result;
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hr = read_png_chunk(stream, type, &data, &data_size);
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if (FAILED(hr)) return hr;
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if (data_size < 4)
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{
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HeapFree(GetProcessHeap(), 0, data);
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return E_FAIL;
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}
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gamma = read_ulong_be(data);
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HeapFree(GetProcessHeap(), 0, data);
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result = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(MetadataItem));
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name = HeapAlloc(GetProcessHeap(), 0, sizeof(ImageGamma));
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if (!result || !name)
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{
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HeapFree(GetProcessHeap(), 0, result);
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HeapFree(GetProcessHeap(), 0, name);
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return E_OUTOFMEMORY;
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}
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PropVariantInit(&result[0].schema);
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PropVariantInit(&result[0].id);
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PropVariantInit(&result[0].value);
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memcpy(name, ImageGamma, sizeof(ImageGamma));
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result[0].id.vt = VT_LPWSTR;
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result[0].id.u.pwszVal = name;
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result[0].value.vt = VT_UI4;
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result[0].value.u.ulVal = gamma;
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*items = result;
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*item_count = 1;
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return S_OK;
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}
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static const MetadataHandlerVtbl GamaReader_Vtbl = {
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0,
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&CLSID_WICPngGamaMetadataReader,
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LoadGamaMetadata
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};
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HRESULT PngGamaReader_CreateInstance(REFIID iid, void** ppv)
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{
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return MetadataReader_Create(&GamaReader_Vtbl, iid, ppv);
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}
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static HRESULT LoadChrmMetadata(IStream *stream, const GUID *preferred_vendor,
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DWORD persist_options, MetadataItem **items, DWORD *item_count)
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{
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HRESULT hr;
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BYTE type[4];
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BYTE *data;
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ULONG data_size;
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static const WCHAR names[8][12] = {
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{'W','h','i','t','e','P','o','i','n','t','X',0},
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{'W','h','i','t','e','P','o','i','n','t','Y',0},
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{'R','e','d','X',0},
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{'R','e','d','Y',0},
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{'G','r','e','e','n','X',0},
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{'G','r','e','e','n','Y',0},
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{'B','l','u','e','X',0},
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{'B','l','u','e','Y',0},
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};
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LPWSTR dyn_names[8] = {0};
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MetadataItem *result;
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int i;
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hr = read_png_chunk(stream, type, &data, &data_size);
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if (FAILED(hr)) return hr;
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if (data_size < 32)
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{
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HeapFree(GetProcessHeap(), 0, data);
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return E_FAIL;
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}
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result = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(MetadataItem)*8);
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for (i=0; i<8; i++)
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{
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dyn_names[i] = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR)*(lstrlenW(names[i])+1));
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if (!dyn_names[i]) break;
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}
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if (!result || i < 8)
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{
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HeapFree(GetProcessHeap(), 0, result);
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for (i=0; i<8; i++)
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HeapFree(GetProcessHeap(), 0, dyn_names[i]);
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HeapFree(GetProcessHeap(), 0, data);
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return E_OUTOFMEMORY;
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}
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for (i=0; i<8; i++)
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{
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PropVariantInit(&result[i].schema);
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PropVariantInit(&result[i].id);
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result[i].id.vt = VT_LPWSTR;
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result[i].id.u.pwszVal = dyn_names[i];
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lstrcpyW(dyn_names[i], names[i]);
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PropVariantInit(&result[i].value);
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result[i].value.vt = VT_UI4;
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result[i].value.u.ulVal = read_ulong_be(&data[i*4]);
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}
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*items = result;
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*item_count = 8;
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HeapFree(GetProcessHeap(), 0, data);
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return S_OK;
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}
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static const MetadataHandlerVtbl ChrmReader_Vtbl = {
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0,
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&CLSID_WICPngChrmMetadataReader,
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LoadChrmMetadata
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};
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HRESULT PngChrmReader_CreateInstance(REFIID iid, void** ppv)
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{
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return MetadataReader_Create(&ChrmReader_Vtbl, iid, ppv);
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}
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#ifdef SONAME_LIBPNG
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static void *libpng_handle;
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#define MAKE_FUNCPTR(f) static typeof(f) * p##f
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MAKE_FUNCPTR(png_create_read_struct);
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MAKE_FUNCPTR(png_create_info_struct);
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MAKE_FUNCPTR(png_create_write_struct);
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MAKE_FUNCPTR(png_destroy_read_struct);
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MAKE_FUNCPTR(png_destroy_write_struct);
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MAKE_FUNCPTR(png_error);
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MAKE_FUNCPTR(png_get_bit_depth);
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MAKE_FUNCPTR(png_get_color_type);
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MAKE_FUNCPTR(png_get_error_ptr);
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MAKE_FUNCPTR(png_get_iCCP);
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MAKE_FUNCPTR(png_get_image_height);
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MAKE_FUNCPTR(png_get_image_width);
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MAKE_FUNCPTR(png_get_io_ptr);
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MAKE_FUNCPTR(png_get_pHYs);
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MAKE_FUNCPTR(png_get_PLTE);
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MAKE_FUNCPTR(png_get_tRNS);
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MAKE_FUNCPTR(png_set_bgr);
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MAKE_FUNCPTR(png_set_crc_action);
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MAKE_FUNCPTR(png_set_error_fn);
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MAKE_FUNCPTR(png_set_filler);
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MAKE_FUNCPTR(png_set_filter);
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MAKE_FUNCPTR(png_set_gray_to_rgb);
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MAKE_FUNCPTR(png_set_interlace_handling);
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MAKE_FUNCPTR(png_set_IHDR);
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MAKE_FUNCPTR(png_set_pHYs);
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MAKE_FUNCPTR(png_set_PLTE);
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MAKE_FUNCPTR(png_set_read_fn);
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MAKE_FUNCPTR(png_set_strip_16);
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MAKE_FUNCPTR(png_set_tRNS);
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MAKE_FUNCPTR(png_set_tRNS_to_alpha);
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MAKE_FUNCPTR(png_set_write_fn);
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MAKE_FUNCPTR(png_read_end);
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MAKE_FUNCPTR(png_read_image);
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MAKE_FUNCPTR(png_read_info);
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MAKE_FUNCPTR(png_write_end);
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MAKE_FUNCPTR(png_write_info);
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MAKE_FUNCPTR(png_write_rows);
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#undef MAKE_FUNCPTR
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static CRITICAL_SECTION init_png_cs;
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static CRITICAL_SECTION_DEBUG init_png_cs_debug =
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{
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0, 0, &init_png_cs,
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{ &init_png_cs_debug.ProcessLocksList,
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&init_png_cs_debug.ProcessLocksList },
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0, 0, { (DWORD_PTR)(__FILE__ ": init_png_cs") }
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};
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static CRITICAL_SECTION init_png_cs = { &init_png_cs_debug, -1, 0, 0, 0, 0 };
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static const WCHAR wszPngInterlaceOption[] = {'I','n','t','e','r','l','a','c','e','O','p','t','i','o','n',0};
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static const WCHAR wszPngFilterOption[] = {'F','i','l','t','e','r','O','p','t','i','o','n',0};
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static void *load_libpng(void)
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{
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void *result;
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EnterCriticalSection(&init_png_cs);
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if(!libpng_handle && (libpng_handle = wine_dlopen(SONAME_LIBPNG, RTLD_NOW, NULL, 0)) != NULL) {
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#define LOAD_FUNCPTR(f) \
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if((p##f = wine_dlsym(libpng_handle, #f, NULL, 0)) == NULL) { \
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libpng_handle = NULL; \
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LeaveCriticalSection(&init_png_cs); \
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return NULL; \
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}
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LOAD_FUNCPTR(png_create_read_struct);
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LOAD_FUNCPTR(png_create_info_struct);
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LOAD_FUNCPTR(png_create_write_struct);
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LOAD_FUNCPTR(png_destroy_read_struct);
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LOAD_FUNCPTR(png_destroy_write_struct);
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LOAD_FUNCPTR(png_error);
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LOAD_FUNCPTR(png_get_bit_depth);
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LOAD_FUNCPTR(png_get_color_type);
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LOAD_FUNCPTR(png_get_error_ptr);
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LOAD_FUNCPTR(png_get_iCCP);
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LOAD_FUNCPTR(png_get_image_height);
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LOAD_FUNCPTR(png_get_image_width);
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LOAD_FUNCPTR(png_get_io_ptr);
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LOAD_FUNCPTR(png_get_pHYs);
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LOAD_FUNCPTR(png_get_PLTE);
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LOAD_FUNCPTR(png_get_tRNS);
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LOAD_FUNCPTR(png_set_bgr);
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LOAD_FUNCPTR(png_set_crc_action);
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LOAD_FUNCPTR(png_set_error_fn);
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LOAD_FUNCPTR(png_set_filler);
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LOAD_FUNCPTR(png_set_filter);
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LOAD_FUNCPTR(png_set_gray_to_rgb);
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LOAD_FUNCPTR(png_set_interlace_handling);
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LOAD_FUNCPTR(png_set_IHDR);
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LOAD_FUNCPTR(png_set_pHYs);
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LOAD_FUNCPTR(png_set_PLTE);
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LOAD_FUNCPTR(png_set_read_fn);
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LOAD_FUNCPTR(png_set_strip_16);
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LOAD_FUNCPTR(png_set_tRNS);
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LOAD_FUNCPTR(png_set_tRNS_to_alpha);
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LOAD_FUNCPTR(png_set_write_fn);
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LOAD_FUNCPTR(png_read_end);
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LOAD_FUNCPTR(png_read_image);
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LOAD_FUNCPTR(png_read_info);
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LOAD_FUNCPTR(png_write_end);
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LOAD_FUNCPTR(png_write_info);
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LOAD_FUNCPTR(png_write_rows);
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#undef LOAD_FUNCPTR
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}
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result = libpng_handle;
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LeaveCriticalSection(&init_png_cs);
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return result;
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}
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static void user_error_fn(png_structp png_ptr, png_const_charp error_message)
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{
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jmp_buf *pjmpbuf;
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/* This uses setjmp/longjmp just like the default. We can't use the
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* default because there's no way to access the jmp buffer in the png_struct
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* that works in 1.2 and 1.4 and allows us to dynamically load libpng. */
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WARN("PNG error: %s\n", debugstr_a(error_message));
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pjmpbuf = ppng_get_error_ptr(png_ptr);
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longjmp(*pjmpbuf, 1);
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}
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static void user_warning_fn(png_structp png_ptr, png_const_charp warning_message)
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{
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WARN("PNG warning: %s\n", debugstr_a(warning_message));
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}
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typedef struct {
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ULARGE_INTEGER ofs, len;
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IWICMetadataReader* reader;
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} metadata_block_info;
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typedef struct {
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IWICBitmapDecoder IWICBitmapDecoder_iface;
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IWICBitmapFrameDecode IWICBitmapFrameDecode_iface;
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IWICMetadataBlockReader IWICMetadataBlockReader_iface;
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LONG ref;
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IStream *stream;
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png_structp png_ptr;
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png_infop info_ptr;
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png_infop end_info;
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BOOL initialized;
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int bpp;
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int width, height;
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UINT stride;
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const WICPixelFormatGUID *format;
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BYTE *image_bits;
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CRITICAL_SECTION lock; /* must be held when png structures are accessed or initialized is set */
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ULONG metadata_count;
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metadata_block_info* metadata_blocks;
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} PngDecoder;
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|
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static inline PngDecoder *impl_from_IWICBitmapDecoder(IWICBitmapDecoder *iface)
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{
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return CONTAINING_RECORD(iface, PngDecoder, IWICBitmapDecoder_iface);
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}
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static inline PngDecoder *impl_from_IWICBitmapFrameDecode(IWICBitmapFrameDecode *iface)
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{
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return CONTAINING_RECORD(iface, PngDecoder, IWICBitmapFrameDecode_iface);
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}
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static inline PngDecoder *impl_from_IWICMetadataBlockReader(IWICMetadataBlockReader *iface)
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{
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return CONTAINING_RECORD(iface, PngDecoder, IWICMetadataBlockReader_iface);
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}
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|
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static const IWICBitmapFrameDecodeVtbl PngDecoder_FrameVtbl;
|
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|
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static HRESULT WINAPI PngDecoder_QueryInterface(IWICBitmapDecoder *iface, REFIID iid,
|
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void **ppv)
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{
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PngDecoder *This = impl_from_IWICBitmapDecoder(iface);
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TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
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|
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if (!ppv) return E_INVALIDARG;
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|
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if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IWICBitmapDecoder, iid))
|
|
{
|
|
*ppv = &This->IWICBitmapDecoder_iface;
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|
}
|
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else
|
|
{
|
|
*ppv = NULL;
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
IUnknown_AddRef((IUnknown*)*ppv);
|
|
return S_OK;
|
|
}
|
|
|
|
static ULONG WINAPI PngDecoder_AddRef(IWICBitmapDecoder *iface)
|
|
{
|
|
PngDecoder *This = impl_from_IWICBitmapDecoder(iface);
|
|
ULONG ref = InterlockedIncrement(&This->ref);
|
|
|
|
TRACE("(%p) refcount=%u\n", iface, ref);
|
|
|
|
return ref;
|
|
}
|
|
|
|
static ULONG WINAPI PngDecoder_Release(IWICBitmapDecoder *iface)
|
|
{
|
|
PngDecoder *This = impl_from_IWICBitmapDecoder(iface);
|
|
ULONG ref = InterlockedDecrement(&This->ref);
|
|
ULONG i;
|
|
|
|
TRACE("(%p) refcount=%u\n", iface, ref);
|
|
|
|
if (ref == 0)
|
|
{
|
|
if (This->stream)
|
|
IStream_Release(This->stream);
|
|
if (This->png_ptr)
|
|
ppng_destroy_read_struct(&This->png_ptr, &This->info_ptr, &This->end_info);
|
|
This->lock.DebugInfo->Spare[0] = 0;
|
|
DeleteCriticalSection(&This->lock);
|
|
HeapFree(GetProcessHeap(), 0, This->image_bits);
|
|
for (i=0; i<This->metadata_count; i++)
|
|
{
|
|
if (This->metadata_blocks[i].reader)
|
|
IWICMetadataReader_Release(This->metadata_blocks[i].reader);
|
|
}
|
|
HeapFree(GetProcessHeap(), 0, This->metadata_blocks);
|
|
HeapFree(GetProcessHeap(), 0, This);
|
|
}
|
|
|
|
return ref;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_QueryCapability(IWICBitmapDecoder *iface, IStream *stream,
|
|
DWORD *capability)
|
|
{
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p,%p,%p)\n", iface, stream, capability);
|
|
|
|
if (!stream || !capability) return E_INVALIDARG;
|
|
|
|
hr = IWICBitmapDecoder_Initialize(iface, stream, WICDecodeMetadataCacheOnDemand);
|
|
if (hr != S_OK) return hr;
|
|
|
|
*capability = WICBitmapDecoderCapabilityCanDecodeAllImages |
|
|
WICBitmapDecoderCapabilityCanDecodeSomeImages;
|
|
/* FIXME: WICBitmapDecoderCapabilityCanEnumerateMetadata */
|
|
return S_OK;
|
|
}
|
|
|
|
static void user_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
|
|
{
|
|
IStream *stream = ppng_get_io_ptr(png_ptr);
|
|
HRESULT hr;
|
|
ULONG bytesread;
|
|
|
|
hr = IStream_Read(stream, data, length, &bytesread);
|
|
if (FAILED(hr) || bytesread != length)
|
|
{
|
|
ppng_error(png_ptr, "failed reading data");
|
|
}
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_Initialize(IWICBitmapDecoder *iface, IStream *pIStream,
|
|
WICDecodeOptions cacheOptions)
|
|
{
|
|
PngDecoder *This = impl_from_IWICBitmapDecoder(iface);
|
|
LARGE_INTEGER seek;
|
|
HRESULT hr=S_OK;
|
|
png_bytep *row_pointers=NULL;
|
|
UINT image_size;
|
|
UINT i;
|
|
int color_type, bit_depth;
|
|
png_bytep trans;
|
|
int num_trans;
|
|
png_uint_32 transparency;
|
|
png_color_16p trans_values;
|
|
jmp_buf jmpbuf;
|
|
BYTE chunk_type[4];
|
|
ULONG chunk_size;
|
|
ULARGE_INTEGER chunk_start;
|
|
ULONG metadata_blocks_size = 0;
|
|
|
|
TRACE("(%p,%p,%x)\n", iface, pIStream, cacheOptions);
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
/* initialize libpng */
|
|
This->png_ptr = ppng_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
|
|
if (!This->png_ptr)
|
|
{
|
|
hr = E_FAIL;
|
|
goto end;
|
|
}
|
|
|
|
This->info_ptr = ppng_create_info_struct(This->png_ptr);
|
|
if (!This->info_ptr)
|
|
{
|
|
ppng_destroy_read_struct(&This->png_ptr, NULL, NULL);
|
|
This->png_ptr = NULL;
|
|
hr = E_FAIL;
|
|
goto end;
|
|
}
|
|
|
|
This->end_info = ppng_create_info_struct(This->png_ptr);
|
|
if (!This->end_info)
|
|
{
|
|
ppng_destroy_read_struct(&This->png_ptr, &This->info_ptr, NULL);
|
|
This->png_ptr = NULL;
|
|
hr = E_FAIL;
|
|
goto end;
|
|
}
|
|
|
|
/* set up setjmp/longjmp error handling */
|
|
if (setjmp(jmpbuf))
|
|
{
|
|
ppng_destroy_read_struct(&This->png_ptr, &This->info_ptr, &This->end_info);
|
|
This->png_ptr = NULL;
|
|
hr = WINCODEC_ERR_UNKNOWNIMAGEFORMAT;
|
|
goto end;
|
|
}
|
|
ppng_set_error_fn(This->png_ptr, jmpbuf, user_error_fn, user_warning_fn);
|
|
ppng_set_crc_action(This->png_ptr, PNG_CRC_QUIET_USE, PNG_CRC_QUIET_USE);
|
|
|
|
/* seek to the start of the stream */
|
|
seek.QuadPart = 0;
|
|
hr = IStream_Seek(pIStream, seek, STREAM_SEEK_SET, NULL);
|
|
if (FAILED(hr)) goto end;
|
|
|
|
/* set up custom i/o handling */
|
|
ppng_set_read_fn(This->png_ptr, pIStream, user_read_data);
|
|
|
|
/* read the header */
|
|
ppng_read_info(This->png_ptr, This->info_ptr);
|
|
|
|
/* choose a pixel format */
|
|
color_type = ppng_get_color_type(This->png_ptr, This->info_ptr);
|
|
bit_depth = ppng_get_bit_depth(This->png_ptr, This->info_ptr);
|
|
|
|
/* check for color-keyed alpha */
|
|
transparency = ppng_get_tRNS(This->png_ptr, This->info_ptr, &trans, &num_trans, &trans_values);
|
|
|
|
if (transparency && (color_type == PNG_COLOR_TYPE_RGB ||
|
|
(color_type == PNG_COLOR_TYPE_GRAY && bit_depth == 16)))
|
|
{
|
|
/* expand to RGBA */
|
|
if (color_type == PNG_COLOR_TYPE_GRAY)
|
|
ppng_set_gray_to_rgb(This->png_ptr);
|
|
ppng_set_tRNS_to_alpha(This->png_ptr);
|
|
color_type = PNG_COLOR_TYPE_RGB_ALPHA;
|
|
}
|
|
|
|
switch (color_type)
|
|
{
|
|
case PNG_COLOR_TYPE_GRAY_ALPHA:
|
|
/* WIC does not support grayscale alpha formats so use RGBA */
|
|
ppng_set_gray_to_rgb(This->png_ptr);
|
|
/* fall through */
|
|
case PNG_COLOR_TYPE_RGB_ALPHA:
|
|
This->bpp = bit_depth * 4;
|
|
switch (bit_depth)
|
|
{
|
|
case 8:
|
|
ppng_set_bgr(This->png_ptr);
|
|
This->format = &GUID_WICPixelFormat32bppBGRA;
|
|
break;
|
|
case 16: This->format = &GUID_WICPixelFormat64bppRGBA; break;
|
|
default:
|
|
ERR("invalid RGBA bit depth: %i\n", bit_depth);
|
|
hr = E_FAIL;
|
|
goto end;
|
|
}
|
|
break;
|
|
case PNG_COLOR_TYPE_GRAY:
|
|
This->bpp = bit_depth;
|
|
if (!transparency)
|
|
{
|
|
switch (bit_depth)
|
|
{
|
|
case 1: This->format = &GUID_WICPixelFormatBlackWhite; break;
|
|
case 2: This->format = &GUID_WICPixelFormat2bppGray; break;
|
|
case 4: This->format = &GUID_WICPixelFormat4bppGray; break;
|
|
case 8: This->format = &GUID_WICPixelFormat8bppGray; break;
|
|
case 16: This->format = &GUID_WICPixelFormat16bppGray; break;
|
|
default:
|
|
ERR("invalid grayscale bit depth: %i\n", bit_depth);
|
|
hr = E_FAIL;
|
|
goto end;
|
|
}
|
|
break;
|
|
}
|
|
/* else fall through */
|
|
case PNG_COLOR_TYPE_PALETTE:
|
|
This->bpp = bit_depth;
|
|
switch (bit_depth)
|
|
{
|
|
case 1: This->format = &GUID_WICPixelFormat1bppIndexed; break;
|
|
case 2: This->format = &GUID_WICPixelFormat2bppIndexed; break;
|
|
case 4: This->format = &GUID_WICPixelFormat4bppIndexed; break;
|
|
case 8: This->format = &GUID_WICPixelFormat8bppIndexed; break;
|
|
default:
|
|
ERR("invalid indexed color bit depth: %i\n", bit_depth);
|
|
hr = E_FAIL;
|
|
goto end;
|
|
}
|
|
break;
|
|
case PNG_COLOR_TYPE_RGB:
|
|
This->bpp = bit_depth * 3;
|
|
switch (bit_depth)
|
|
{
|
|
case 8:
|
|
ppng_set_bgr(This->png_ptr);
|
|
This->format = &GUID_WICPixelFormat24bppBGR;
|
|
break;
|
|
case 16: This->format = &GUID_WICPixelFormat48bppRGB; break;
|
|
default:
|
|
ERR("invalid RGB color bit depth: %i\n", bit_depth);
|
|
hr = E_FAIL;
|
|
goto end;
|
|
}
|
|
break;
|
|
default:
|
|
ERR("invalid color type %i\n", color_type);
|
|
hr = E_FAIL;
|
|
goto end;
|
|
}
|
|
|
|
/* read the image data */
|
|
This->width = ppng_get_image_width(This->png_ptr, This->info_ptr);
|
|
This->height = ppng_get_image_height(This->png_ptr, This->info_ptr);
|
|
This->stride = (This->width * This->bpp + 7) / 8;
|
|
image_size = This->stride * This->height;
|
|
|
|
This->image_bits = HeapAlloc(GetProcessHeap(), 0, image_size);
|
|
if (!This->image_bits)
|
|
{
|
|
hr = E_OUTOFMEMORY;
|
|
goto end;
|
|
}
|
|
|
|
row_pointers = HeapAlloc(GetProcessHeap(), 0, sizeof(png_bytep)*This->height);
|
|
if (!row_pointers)
|
|
{
|
|
hr = E_OUTOFMEMORY;
|
|
goto end;
|
|
}
|
|
|
|
for (i=0; i<This->height; i++)
|
|
row_pointers[i] = This->image_bits + i * This->stride;
|
|
|
|
ppng_read_image(This->png_ptr, row_pointers);
|
|
|
|
HeapFree(GetProcessHeap(), 0, row_pointers);
|
|
row_pointers = NULL;
|
|
|
|
ppng_read_end(This->png_ptr, This->end_info);
|
|
|
|
/* Find the metadata chunks in the file. */
|
|
seek.QuadPart = 8;
|
|
|
|
do
|
|
{
|
|
hr = IStream_Seek(pIStream, seek, STREAM_SEEK_SET, &chunk_start);
|
|
if (FAILED(hr)) goto end;
|
|
|
|
hr = read_png_chunk(pIStream, chunk_type, NULL, &chunk_size);
|
|
if (FAILED(hr)) goto end;
|
|
|
|
if (chunk_type[0] >= 'a' && chunk_type[0] <= 'z' &&
|
|
memcmp(chunk_type, "tRNS", 4) && memcmp(chunk_type, "pHYs", 4))
|
|
{
|
|
/* This chunk is considered metadata. */
|
|
if (This->metadata_count == metadata_blocks_size)
|
|
{
|
|
metadata_block_info* new_metadata_blocks;
|
|
ULONG new_metadata_blocks_size;
|
|
|
|
new_metadata_blocks_size = 4 + metadata_blocks_size * 2;
|
|
new_metadata_blocks = HeapAlloc(GetProcessHeap(), 0,
|
|
new_metadata_blocks_size * sizeof(*new_metadata_blocks));
|
|
|
|
if (!new_metadata_blocks)
|
|
{
|
|
hr = E_OUTOFMEMORY;
|
|
goto end;
|
|
}
|
|
|
|
memcpy(new_metadata_blocks, This->metadata_blocks,
|
|
This->metadata_count * sizeof(*new_metadata_blocks));
|
|
|
|
HeapFree(GetProcessHeap(), 0, This->metadata_blocks);
|
|
This->metadata_blocks = new_metadata_blocks;
|
|
metadata_blocks_size = new_metadata_blocks_size;
|
|
}
|
|
|
|
This->metadata_blocks[This->metadata_count].ofs = chunk_start;
|
|
This->metadata_blocks[This->metadata_count].len.QuadPart = chunk_size + 12;
|
|
This->metadata_blocks[This->metadata_count].reader = NULL;
|
|
This->metadata_count++;
|
|
}
|
|
|
|
seek.QuadPart = chunk_start.QuadPart + chunk_size + 12; /* skip data and CRC */
|
|
} while (memcmp(chunk_type, "IEND", 4));
|
|
|
|
This->stream = pIStream;
|
|
IStream_AddRef(This->stream);
|
|
|
|
This->initialized = TRUE;
|
|
|
|
end:
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
HeapFree(GetProcessHeap(), 0, row_pointers);
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_GetContainerFormat(IWICBitmapDecoder *iface,
|
|
GUID *pguidContainerFormat)
|
|
{
|
|
memcpy(pguidContainerFormat, &GUID_ContainerFormatPng, sizeof(GUID));
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_GetDecoderInfo(IWICBitmapDecoder *iface,
|
|
IWICBitmapDecoderInfo **ppIDecoderInfo)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, ppIDecoderInfo);
|
|
|
|
return get_decoder_info(&CLSID_WICPngDecoder, ppIDecoderInfo);
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_CopyPalette(IWICBitmapDecoder *iface,
|
|
IWICPalette *palette)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, palette);
|
|
return WINCODEC_ERR_PALETTEUNAVAILABLE;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_GetMetadataQueryReader(IWICBitmapDecoder *iface,
|
|
IWICMetadataQueryReader **reader)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, reader);
|
|
|
|
if (!reader) return E_INVALIDARG;
|
|
|
|
*reader = NULL;
|
|
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_GetPreview(IWICBitmapDecoder *iface,
|
|
IWICBitmapSource **ppIBitmapSource)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, ppIBitmapSource);
|
|
|
|
if (!ppIBitmapSource) return E_INVALIDARG;
|
|
|
|
*ppIBitmapSource = NULL;
|
|
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_GetColorContexts(IWICBitmapDecoder *iface,
|
|
UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
|
|
{
|
|
TRACE("(%p,%u,%p,%p)\n", iface, cCount, ppIColorContexts, pcActualCount);
|
|
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_GetThumbnail(IWICBitmapDecoder *iface,
|
|
IWICBitmapSource **ppIThumbnail)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, ppIThumbnail);
|
|
|
|
if (!ppIThumbnail) return E_INVALIDARG;
|
|
|
|
*ppIThumbnail = NULL;
|
|
return WINCODEC_ERR_CODECNOTHUMBNAIL;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_GetFrameCount(IWICBitmapDecoder *iface,
|
|
UINT *pCount)
|
|
{
|
|
if (!pCount) return E_INVALIDARG;
|
|
|
|
*pCount = 1;
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_GetFrame(IWICBitmapDecoder *iface,
|
|
UINT index, IWICBitmapFrameDecode **ppIBitmapFrame)
|
|
{
|
|
PngDecoder *This = impl_from_IWICBitmapDecoder(iface);
|
|
TRACE("(%p,%u,%p)\n", iface, index, ppIBitmapFrame);
|
|
|
|
if (!This->initialized) return WINCODEC_ERR_FRAMEMISSING;
|
|
|
|
if (index != 0) return E_INVALIDARG;
|
|
|
|
IWICBitmapDecoder_AddRef(iface);
|
|
|
|
*ppIBitmapFrame = &This->IWICBitmapFrameDecode_iface;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static const IWICBitmapDecoderVtbl PngDecoder_Vtbl = {
|
|
PngDecoder_QueryInterface,
|
|
PngDecoder_AddRef,
|
|
PngDecoder_Release,
|
|
PngDecoder_QueryCapability,
|
|
PngDecoder_Initialize,
|
|
PngDecoder_GetContainerFormat,
|
|
PngDecoder_GetDecoderInfo,
|
|
PngDecoder_CopyPalette,
|
|
PngDecoder_GetMetadataQueryReader,
|
|
PngDecoder_GetPreview,
|
|
PngDecoder_GetColorContexts,
|
|
PngDecoder_GetThumbnail,
|
|
PngDecoder_GetFrameCount,
|
|
PngDecoder_GetFrame
|
|
};
|
|
|
|
static HRESULT WINAPI PngDecoder_Frame_QueryInterface(IWICBitmapFrameDecode *iface, REFIID iid,
|
|
void **ppv)
|
|
{
|
|
PngDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
|
|
if (!ppv) return E_INVALIDARG;
|
|
|
|
if (IsEqualIID(&IID_IUnknown, iid) ||
|
|
IsEqualIID(&IID_IWICBitmapSource, iid) ||
|
|
IsEqualIID(&IID_IWICBitmapFrameDecode, iid))
|
|
{
|
|
*ppv = &This->IWICBitmapFrameDecode_iface;
|
|
}
|
|
else if (IsEqualIID(&IID_IWICMetadataBlockReader, iid))
|
|
{
|
|
*ppv = &This->IWICMetadataBlockReader_iface;
|
|
}
|
|
else
|
|
{
|
|
*ppv = NULL;
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
IUnknown_AddRef((IUnknown*)*ppv);
|
|
return S_OK;
|
|
}
|
|
|
|
static ULONG WINAPI PngDecoder_Frame_AddRef(IWICBitmapFrameDecode *iface)
|
|
{
|
|
PngDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
|
|
return IWICBitmapDecoder_AddRef(&This->IWICBitmapDecoder_iface);
|
|
}
|
|
|
|
static ULONG WINAPI PngDecoder_Frame_Release(IWICBitmapFrameDecode *iface)
|
|
{
|
|
PngDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
|
|
return IWICBitmapDecoder_Release(&This->IWICBitmapDecoder_iface);
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_Frame_GetSize(IWICBitmapFrameDecode *iface,
|
|
UINT *puiWidth, UINT *puiHeight)
|
|
{
|
|
PngDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
|
|
*puiWidth = This->width;
|
|
*puiHeight = This->height;
|
|
TRACE("(%p)->(%u,%u)\n", iface, *puiWidth, *puiHeight);
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_Frame_GetPixelFormat(IWICBitmapFrameDecode *iface,
|
|
WICPixelFormatGUID *pPixelFormat)
|
|
{
|
|
PngDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
|
|
TRACE("(%p,%p)\n", iface, pPixelFormat);
|
|
|
|
memcpy(pPixelFormat, This->format, sizeof(GUID));
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_Frame_GetResolution(IWICBitmapFrameDecode *iface,
|
|
double *pDpiX, double *pDpiY)
|
|
{
|
|
PngDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
|
|
png_uint_32 ret, xres, yres;
|
|
int unit_type;
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
ret = ppng_get_pHYs(This->png_ptr, This->info_ptr, &xres, &yres, &unit_type);
|
|
|
|
if (ret && unit_type == PNG_RESOLUTION_METER)
|
|
{
|
|
*pDpiX = xres * 0.0254;
|
|
*pDpiY = yres * 0.0254;
|
|
}
|
|
else
|
|
{
|
|
WARN("no pHYs block present\n");
|
|
*pDpiX = *pDpiY = 96.0;
|
|
}
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
TRACE("(%p)->(%0.2f,%0.2f)\n", iface, *pDpiX, *pDpiY);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_Frame_CopyPalette(IWICBitmapFrameDecode *iface,
|
|
IWICPalette *pIPalette)
|
|
{
|
|
PngDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
|
|
png_uint_32 ret, color_type, bit_depth;
|
|
png_colorp png_palette;
|
|
int num_palette;
|
|
WICColor palette[256];
|
|
png_bytep trans_alpha;
|
|
int num_trans;
|
|
png_color_16p trans_values;
|
|
int i;
|
|
HRESULT hr=S_OK;
|
|
|
|
TRACE("(%p,%p)\n", iface, pIPalette);
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
color_type = ppng_get_color_type(This->png_ptr, This->info_ptr);
|
|
bit_depth = ppng_get_bit_depth(This->png_ptr, This->info_ptr);
|
|
|
|
if (color_type == PNG_COLOR_TYPE_PALETTE)
|
|
{
|
|
ret = ppng_get_PLTE(This->png_ptr, This->info_ptr, &png_palette, &num_palette);
|
|
if (!ret)
|
|
{
|
|
hr = WINCODEC_ERR_PALETTEUNAVAILABLE;
|
|
goto end;
|
|
}
|
|
|
|
if (num_palette > 256)
|
|
{
|
|
ERR("palette has %i colors?!\n", num_palette);
|
|
hr = E_FAIL;
|
|
goto end;
|
|
}
|
|
|
|
ret = ppng_get_tRNS(This->png_ptr, This->info_ptr, &trans_alpha, &num_trans, &trans_values);
|
|
if (!ret) num_trans = 0;
|
|
|
|
for (i=0; i<num_palette; i++)
|
|
{
|
|
BYTE alpha = (i < num_trans) ? trans_alpha[i] : 0xff;
|
|
palette[i] = (alpha << 24 |
|
|
png_palette[i].red << 16|
|
|
png_palette[i].green << 8|
|
|
png_palette[i].blue);
|
|
}
|
|
}
|
|
else if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth <= 8) {
|
|
ret = ppng_get_tRNS(This->png_ptr, This->info_ptr, &trans_alpha, &num_trans, &trans_values);
|
|
|
|
if (!ret)
|
|
{
|
|
hr = WINCODEC_ERR_PALETTEUNAVAILABLE;
|
|
goto end;
|
|
}
|
|
|
|
num_palette = 1 << bit_depth;
|
|
|
|
for (i=0; i<num_palette; i++)
|
|
{
|
|
BYTE alpha = (i == trans_values[0].gray) ? 0 : 0xff;
|
|
BYTE val = i * 255 / (num_palette - 1);
|
|
palette[i] = (alpha << 24 | val << 16 | val << 8 | val);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
hr = WINCODEC_ERR_PALETTEUNAVAILABLE;
|
|
}
|
|
|
|
end:
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
if (SUCCEEDED(hr))
|
|
hr = IWICPalette_InitializeCustom(pIPalette, palette, num_palette);
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_Frame_CopyPixels(IWICBitmapFrameDecode *iface,
|
|
const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
|
|
{
|
|
PngDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
|
|
TRACE("(%p,%s,%u,%u,%p)\n", iface, debug_wic_rect(prc), cbStride, cbBufferSize, pbBuffer);
|
|
|
|
return copy_pixels(This->bpp, This->image_bits,
|
|
This->width, This->height, This->stride,
|
|
prc, cbStride, cbBufferSize, pbBuffer);
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_Frame_GetMetadataQueryReader(IWICBitmapFrameDecode *iface,
|
|
IWICMetadataQueryReader **ppIMetadataQueryReader)
|
|
{
|
|
PngDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
|
|
|
|
TRACE("(%p,%p)\n", iface, ppIMetadataQueryReader);
|
|
|
|
if (!ppIMetadataQueryReader)
|
|
return E_INVALIDARG;
|
|
|
|
return MetadataQueryReader_CreateInstance(&This->IWICMetadataBlockReader_iface, NULL, ppIMetadataQueryReader);
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_Frame_GetColorContexts(IWICBitmapFrameDecode *iface,
|
|
UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
|
|
{
|
|
PngDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
|
|
png_charp name;
|
|
BYTE *profile;
|
|
png_uint_32 len;
|
|
int compression_type;
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p,%u,%p,%p)\n", iface, cCount, ppIColorContexts, pcActualCount);
|
|
|
|
if (!pcActualCount) return E_INVALIDARG;
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
if (ppng_get_iCCP(This->png_ptr, This->info_ptr, &name, &compression_type, (void *)&profile, &len))
|
|
{
|
|
if (cCount && ppIColorContexts)
|
|
{
|
|
hr = IWICColorContext_InitializeFromMemory(*ppIColorContexts, profile, len);
|
|
if (FAILED(hr))
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return hr;
|
|
}
|
|
}
|
|
*pcActualCount = 1;
|
|
}
|
|
else
|
|
*pcActualCount = 0;
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_Frame_GetThumbnail(IWICBitmapFrameDecode *iface,
|
|
IWICBitmapSource **ppIThumbnail)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, ppIThumbnail);
|
|
|
|
if (!ppIThumbnail) return E_INVALIDARG;
|
|
|
|
*ppIThumbnail = NULL;
|
|
return WINCODEC_ERR_CODECNOTHUMBNAIL;
|
|
}
|
|
|
|
static const IWICBitmapFrameDecodeVtbl PngDecoder_FrameVtbl = {
|
|
PngDecoder_Frame_QueryInterface,
|
|
PngDecoder_Frame_AddRef,
|
|
PngDecoder_Frame_Release,
|
|
PngDecoder_Frame_GetSize,
|
|
PngDecoder_Frame_GetPixelFormat,
|
|
PngDecoder_Frame_GetResolution,
|
|
PngDecoder_Frame_CopyPalette,
|
|
PngDecoder_Frame_CopyPixels,
|
|
PngDecoder_Frame_GetMetadataQueryReader,
|
|
PngDecoder_Frame_GetColorContexts,
|
|
PngDecoder_Frame_GetThumbnail
|
|
};
|
|
|
|
static HRESULT WINAPI PngDecoder_Block_QueryInterface(IWICMetadataBlockReader *iface, REFIID iid,
|
|
void **ppv)
|
|
{
|
|
PngDecoder *This = impl_from_IWICMetadataBlockReader(iface);
|
|
return IWICBitmapFrameDecode_QueryInterface(&This->IWICBitmapFrameDecode_iface, iid, ppv);
|
|
}
|
|
|
|
static ULONG WINAPI PngDecoder_Block_AddRef(IWICMetadataBlockReader *iface)
|
|
{
|
|
PngDecoder *This = impl_from_IWICMetadataBlockReader(iface);
|
|
return IWICBitmapDecoder_AddRef(&This->IWICBitmapDecoder_iface);
|
|
}
|
|
|
|
static ULONG WINAPI PngDecoder_Block_Release(IWICMetadataBlockReader *iface)
|
|
{
|
|
PngDecoder *This = impl_from_IWICMetadataBlockReader(iface);
|
|
return IWICBitmapDecoder_Release(&This->IWICBitmapDecoder_iface);
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_Block_GetContainerFormat(IWICMetadataBlockReader *iface,
|
|
GUID *pguidContainerFormat)
|
|
{
|
|
if (!pguidContainerFormat) return E_INVALIDARG;
|
|
memcpy(pguidContainerFormat, &GUID_ContainerFormatPng, sizeof(GUID));
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_Block_GetCount(IWICMetadataBlockReader *iface,
|
|
UINT *pcCount)
|
|
{
|
|
PngDecoder *This = impl_from_IWICMetadataBlockReader(iface);
|
|
|
|
TRACE("%p,%p\n", iface, pcCount);
|
|
|
|
if (!pcCount) return E_INVALIDARG;
|
|
|
|
*pcCount = This->metadata_count;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_Block_GetReaderByIndex(IWICMetadataBlockReader *iface,
|
|
UINT nIndex, IWICMetadataReader **ppIMetadataReader)
|
|
{
|
|
PngDecoder *This = impl_from_IWICMetadataBlockReader(iface);
|
|
HRESULT hr;
|
|
IWICComponentFactory* factory;
|
|
IWICStream* stream;
|
|
|
|
TRACE("%p,%d,%p\n", iface, nIndex, ppIMetadataReader);
|
|
|
|
if (nIndex >= This->metadata_count || !ppIMetadataReader)
|
|
return E_INVALIDARG;
|
|
|
|
if (!This->metadata_blocks[nIndex].reader)
|
|
{
|
|
hr = StreamImpl_Create(&stream);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
hr = IWICStream_InitializeFromIStreamRegion(stream, This->stream,
|
|
This->metadata_blocks[nIndex].ofs, This->metadata_blocks[nIndex].len);
|
|
|
|
if (SUCCEEDED(hr))
|
|
hr = ImagingFactory_CreateInstance(&IID_IWICComponentFactory, (void**)&factory);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
hr = IWICComponentFactory_CreateMetadataReaderFromContainer(factory,
|
|
&GUID_ContainerFormatPng, NULL, WICMetadataCreationAllowUnknown,
|
|
(IStream*)stream, &This->metadata_blocks[nIndex].reader);
|
|
|
|
IWICComponentFactory_Release(factory);
|
|
}
|
|
|
|
IWICStream_Release(stream);
|
|
}
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
*ppIMetadataReader = NULL;
|
|
return hr;
|
|
}
|
|
}
|
|
|
|
*ppIMetadataReader = This->metadata_blocks[nIndex].reader;
|
|
IWICMetadataReader_AddRef(*ppIMetadataReader);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngDecoder_Block_GetEnumerator(IWICMetadataBlockReader *iface,
|
|
IEnumUnknown **ppIEnumMetadata)
|
|
{
|
|
FIXME("%p,%p\n", iface, ppIEnumMetadata);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static const IWICMetadataBlockReaderVtbl PngDecoder_BlockVtbl = {
|
|
PngDecoder_Block_QueryInterface,
|
|
PngDecoder_Block_AddRef,
|
|
PngDecoder_Block_Release,
|
|
PngDecoder_Block_GetContainerFormat,
|
|
PngDecoder_Block_GetCount,
|
|
PngDecoder_Block_GetReaderByIndex,
|
|
PngDecoder_Block_GetEnumerator,
|
|
};
|
|
|
|
HRESULT PngDecoder_CreateInstance(REFIID iid, void** ppv)
|
|
{
|
|
PngDecoder *This;
|
|
HRESULT ret;
|
|
|
|
TRACE("(%s,%p)\n", debugstr_guid(iid), ppv);
|
|
|
|
*ppv = NULL;
|
|
|
|
if (!load_libpng())
|
|
{
|
|
ERR("Failed reading PNG because unable to find %s\n",SONAME_LIBPNG);
|
|
return E_FAIL;
|
|
}
|
|
|
|
This = HeapAlloc(GetProcessHeap(), 0, sizeof(PngDecoder));
|
|
if (!This) return E_OUTOFMEMORY;
|
|
|
|
This->IWICBitmapDecoder_iface.lpVtbl = &PngDecoder_Vtbl;
|
|
This->IWICBitmapFrameDecode_iface.lpVtbl = &PngDecoder_FrameVtbl;
|
|
This->IWICMetadataBlockReader_iface.lpVtbl = &PngDecoder_BlockVtbl;
|
|
This->ref = 1;
|
|
This->png_ptr = NULL;
|
|
This->info_ptr = NULL;
|
|
This->end_info = NULL;
|
|
This->stream = NULL;
|
|
This->initialized = FALSE;
|
|
This->image_bits = NULL;
|
|
InitializeCriticalSection(&This->lock);
|
|
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": PngDecoder.lock");
|
|
This->metadata_count = 0;
|
|
This->metadata_blocks = NULL;
|
|
|
|
ret = IWICBitmapDecoder_QueryInterface(&This->IWICBitmapDecoder_iface, iid, ppv);
|
|
IWICBitmapDecoder_Release(&This->IWICBitmapDecoder_iface);
|
|
|
|
return ret;
|
|
}
|
|
|
|
struct png_pixelformat {
|
|
const WICPixelFormatGUID *guid;
|
|
UINT bpp;
|
|
int bit_depth;
|
|
int color_type;
|
|
BOOL remove_filler;
|
|
BOOL swap_rgb;
|
|
};
|
|
|
|
static const struct png_pixelformat formats[] = {
|
|
{&GUID_WICPixelFormat32bppBGRA, 32, 8, PNG_COLOR_TYPE_RGB_ALPHA, 0, 1},
|
|
{&GUID_WICPixelFormat24bppBGR, 24, 8, PNG_COLOR_TYPE_RGB, 0, 1},
|
|
{&GUID_WICPixelFormatBlackWhite, 1, 1, PNG_COLOR_TYPE_GRAY, 0, 0},
|
|
{&GUID_WICPixelFormat2bppGray, 2, 2, PNG_COLOR_TYPE_GRAY, 0, 0},
|
|
{&GUID_WICPixelFormat4bppGray, 4, 4, PNG_COLOR_TYPE_GRAY, 0, 0},
|
|
{&GUID_WICPixelFormat8bppGray, 8, 8, PNG_COLOR_TYPE_GRAY, 0, 0},
|
|
{&GUID_WICPixelFormat16bppGray, 16, 16, PNG_COLOR_TYPE_GRAY, 0, 0},
|
|
{&GUID_WICPixelFormat32bppBGR, 32, 8, PNG_COLOR_TYPE_RGB, 1, 1},
|
|
{&GUID_WICPixelFormat48bppRGB, 48, 16, PNG_COLOR_TYPE_RGB, 0, 0},
|
|
{&GUID_WICPixelFormat64bppRGBA, 64, 16, PNG_COLOR_TYPE_RGB_ALPHA, 0, 0},
|
|
{&GUID_WICPixelFormat1bppIndexed, 1, 1, PNG_COLOR_TYPE_PALETTE, 0, 0},
|
|
{&GUID_WICPixelFormat2bppIndexed, 2, 2, PNG_COLOR_TYPE_PALETTE, 0, 0},
|
|
{&GUID_WICPixelFormat4bppIndexed, 4, 4, PNG_COLOR_TYPE_PALETTE, 0, 0},
|
|
{&GUID_WICPixelFormat8bppIndexed, 8, 8, PNG_COLOR_TYPE_PALETTE, 0, 0},
|
|
{NULL},
|
|
};
|
|
|
|
typedef struct PngEncoder {
|
|
IWICBitmapEncoder IWICBitmapEncoder_iface;
|
|
IWICBitmapFrameEncode IWICBitmapFrameEncode_iface;
|
|
LONG ref;
|
|
IStream *stream;
|
|
png_structp png_ptr;
|
|
png_infop info_ptr;
|
|
UINT frame_count;
|
|
BOOL frame_initialized;
|
|
const struct png_pixelformat *format;
|
|
BOOL info_written;
|
|
UINT width, height;
|
|
double xres, yres;
|
|
UINT lines_written;
|
|
BOOL frame_committed;
|
|
BOOL committed;
|
|
CRITICAL_SECTION lock;
|
|
BOOL interlace;
|
|
WICPngFilterOption filter;
|
|
BYTE *data;
|
|
UINT stride;
|
|
UINT passes;
|
|
WICColor palette[256];
|
|
UINT colors;
|
|
} PngEncoder;
|
|
|
|
static inline PngEncoder *impl_from_IWICBitmapEncoder(IWICBitmapEncoder *iface)
|
|
{
|
|
return CONTAINING_RECORD(iface, PngEncoder, IWICBitmapEncoder_iface);
|
|
}
|
|
|
|
static inline PngEncoder *impl_from_IWICBitmapFrameEncode(IWICBitmapFrameEncode *iface)
|
|
{
|
|
return CONTAINING_RECORD(iface, PngEncoder, IWICBitmapFrameEncode_iface);
|
|
}
|
|
|
|
static HRESULT WINAPI PngFrameEncode_QueryInterface(IWICBitmapFrameEncode *iface, REFIID iid,
|
|
void **ppv)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapFrameEncode(iface);
|
|
TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
|
|
|
|
if (!ppv) return E_INVALIDARG;
|
|
|
|
if (IsEqualIID(&IID_IUnknown, iid) ||
|
|
IsEqualIID(&IID_IWICBitmapFrameEncode, iid))
|
|
{
|
|
*ppv = &This->IWICBitmapFrameEncode_iface;
|
|
}
|
|
else
|
|
{
|
|
*ppv = NULL;
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
IUnknown_AddRef((IUnknown*)*ppv);
|
|
return S_OK;
|
|
}
|
|
|
|
static ULONG WINAPI PngFrameEncode_AddRef(IWICBitmapFrameEncode *iface)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapFrameEncode(iface);
|
|
return IWICBitmapEncoder_AddRef(&This->IWICBitmapEncoder_iface);
|
|
}
|
|
|
|
static ULONG WINAPI PngFrameEncode_Release(IWICBitmapFrameEncode *iface)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapFrameEncode(iface);
|
|
return IWICBitmapEncoder_Release(&This->IWICBitmapEncoder_iface);
|
|
}
|
|
|
|
static HRESULT WINAPI PngFrameEncode_Initialize(IWICBitmapFrameEncode *iface,
|
|
IPropertyBag2 *pIEncoderOptions)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapFrameEncode(iface);
|
|
WICPngFilterOption filter;
|
|
BOOL interlace;
|
|
PROPBAG2 opts[2]= {{0}};
|
|
VARIANT opt_values[2];
|
|
HRESULT opt_hres[2];
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p,%p)\n", iface, pIEncoderOptions);
|
|
|
|
opts[0].pstrName = (LPOLESTR)wszPngInterlaceOption;
|
|
opts[0].vt = VT_BOOL;
|
|
opts[1].pstrName = (LPOLESTR)wszPngFilterOption;
|
|
opts[1].vt = VT_UI1;
|
|
|
|
if (pIEncoderOptions)
|
|
{
|
|
hr = IPropertyBag2_Read(pIEncoderOptions, ARRAY_SIZE(opts), opts, NULL, opt_values, opt_hres);
|
|
|
|
if (FAILED(hr))
|
|
return hr;
|
|
|
|
if (V_VT(&opt_values[0]) == VT_EMPTY)
|
|
interlace = FALSE;
|
|
else
|
|
interlace = (V_BOOL(&opt_values[0]) != 0);
|
|
|
|
filter = V_UI1(&opt_values[1]);
|
|
if (filter > WICPngFilterAdaptive)
|
|
{
|
|
WARN("Unrecognized filter option value %u.\n", filter);
|
|
filter = WICPngFilterUnspecified;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
interlace = FALSE;
|
|
filter = WICPngFilterUnspecified;
|
|
}
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
if (This->frame_initialized)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return WINCODEC_ERR_WRONGSTATE;
|
|
}
|
|
|
|
This->interlace = interlace;
|
|
This->filter = filter;
|
|
|
|
This->frame_initialized = TRUE;
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngFrameEncode_SetSize(IWICBitmapFrameEncode *iface,
|
|
UINT uiWidth, UINT uiHeight)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapFrameEncode(iface);
|
|
TRACE("(%p,%u,%u)\n", iface, uiWidth, uiHeight);
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
if (!This->frame_initialized || This->info_written)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return WINCODEC_ERR_WRONGSTATE;
|
|
}
|
|
|
|
This->width = uiWidth;
|
|
This->height = uiHeight;
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngFrameEncode_SetResolution(IWICBitmapFrameEncode *iface,
|
|
double dpiX, double dpiY)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapFrameEncode(iface);
|
|
TRACE("(%p,%0.2f,%0.2f)\n", iface, dpiX, dpiY);
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
if (!This->frame_initialized || This->info_written)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return WINCODEC_ERR_WRONGSTATE;
|
|
}
|
|
|
|
This->xres = dpiX;
|
|
This->yres = dpiY;
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngFrameEncode_SetPixelFormat(IWICBitmapFrameEncode *iface,
|
|
WICPixelFormatGUID *pPixelFormat)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapFrameEncode(iface);
|
|
int i;
|
|
TRACE("(%p,%s)\n", iface, debugstr_guid(pPixelFormat));
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
if (!This->frame_initialized || This->info_written)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return WINCODEC_ERR_WRONGSTATE;
|
|
}
|
|
|
|
for (i=0; formats[i].guid; i++)
|
|
{
|
|
if (memcmp(formats[i].guid, pPixelFormat, sizeof(GUID)) == 0)
|
|
break;
|
|
}
|
|
|
|
if (!formats[i].guid) i = 0;
|
|
|
|
This->format = &formats[i];
|
|
memcpy(pPixelFormat, This->format->guid, sizeof(GUID));
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngFrameEncode_SetColorContexts(IWICBitmapFrameEncode *iface,
|
|
UINT cCount, IWICColorContext **ppIColorContext)
|
|
{
|
|
FIXME("(%p,%u,%p): stub\n", iface, cCount, ppIColorContext);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static HRESULT WINAPI PngFrameEncode_SetPalette(IWICBitmapFrameEncode *iface,
|
|
IWICPalette *palette)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapFrameEncode(iface);
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p,%p)\n", iface, palette);
|
|
|
|
if (!palette) return E_INVALIDARG;
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
if (This->frame_initialized)
|
|
hr = IWICPalette_GetColors(palette, 256, This->palette, &This->colors);
|
|
else
|
|
hr = WINCODEC_ERR_NOTINITIALIZED;
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI PngFrameEncode_SetThumbnail(IWICBitmapFrameEncode *iface,
|
|
IWICBitmapSource *pIThumbnail)
|
|
{
|
|
FIXME("(%p,%p): stub\n", iface, pIThumbnail);
|
|
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
|
|
}
|
|
|
|
static HRESULT WINAPI PngFrameEncode_WritePixels(IWICBitmapFrameEncode *iface,
|
|
UINT lineCount, UINT cbStride, UINT cbBufferSize, BYTE *pbPixels)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapFrameEncode(iface);
|
|
png_byte **row_pointers=NULL;
|
|
UINT i;
|
|
jmp_buf jmpbuf;
|
|
TRACE("(%p,%u,%u,%u,%p)\n", iface, lineCount, cbStride, cbBufferSize, pbPixels);
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
if (!This->frame_initialized || !This->width || !This->height || !This->format)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return WINCODEC_ERR_WRONGSTATE;
|
|
}
|
|
|
|
if (lineCount == 0 || lineCount + This->lines_written > This->height)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
/* set up setjmp/longjmp error handling */
|
|
if (setjmp(jmpbuf))
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
HeapFree(GetProcessHeap(), 0, row_pointers);
|
|
return E_FAIL;
|
|
}
|
|
ppng_set_error_fn(This->png_ptr, jmpbuf, user_error_fn, user_warning_fn);
|
|
|
|
if (!This->info_written)
|
|
{
|
|
if (This->interlace)
|
|
{
|
|
/* libpng requires us to write all data multiple times in this case. */
|
|
This->stride = (This->format->bpp * This->width + 7)/8;
|
|
This->data = HeapAlloc(GetProcessHeap(), 0, This->height * This->stride);
|
|
if (!This->data)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
}
|
|
|
|
ppng_set_IHDR(This->png_ptr, This->info_ptr, This->width, This->height,
|
|
This->format->bit_depth, This->format->color_type,
|
|
This->interlace ? PNG_INTERLACE_ADAM7 : PNG_INTERLACE_NONE,
|
|
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
|
|
|
|
if (This->xres != 0.0 && This->yres != 0.0)
|
|
{
|
|
ppng_set_pHYs(This->png_ptr, This->info_ptr, (This->xres+0.0127) / 0.0254,
|
|
(This->yres+0.0127) / 0.0254, PNG_RESOLUTION_METER);
|
|
}
|
|
|
|
if (This->format->color_type == PNG_COLOR_TYPE_PALETTE && This->colors)
|
|
{
|
|
png_color png_palette[256];
|
|
png_byte trans[256];
|
|
UINT i, num_trans = 0, colors;
|
|
|
|
/* Newer libpng versions don't accept larger palettes than the declared
|
|
* bit depth, so we need to generate the palette of the correct length.
|
|
*/
|
|
colors = min(This->colors, 1 << This->format->bit_depth);
|
|
|
|
for (i = 0; i < colors; i++)
|
|
{
|
|
png_palette[i].red = (This->palette[i] >> 16) & 0xff;
|
|
png_palette[i].green = (This->palette[i] >> 8) & 0xff;
|
|
png_palette[i].blue = This->palette[i] & 0xff;
|
|
trans[i] = (This->palette[i] >> 24) & 0xff;
|
|
if (trans[i] != 0xff)
|
|
num_trans = i+1;
|
|
}
|
|
|
|
ppng_set_PLTE(This->png_ptr, This->info_ptr, png_palette, colors);
|
|
|
|
if (num_trans)
|
|
ppng_set_tRNS(This->png_ptr, This->info_ptr, trans, num_trans, NULL);
|
|
}
|
|
|
|
ppng_write_info(This->png_ptr, This->info_ptr);
|
|
|
|
if (This->format->remove_filler)
|
|
ppng_set_filler(This->png_ptr, 0, PNG_FILLER_AFTER);
|
|
|
|
if (This->format->swap_rgb)
|
|
ppng_set_bgr(This->png_ptr);
|
|
|
|
if (This->interlace)
|
|
This->passes = ppng_set_interlace_handling(This->png_ptr);
|
|
|
|
if (This->filter != WICPngFilterUnspecified)
|
|
{
|
|
static const int png_filter_map[] =
|
|
{
|
|
/* WICPngFilterUnspecified */ PNG_NO_FILTERS,
|
|
/* WICPngFilterNone */ PNG_FILTER_NONE,
|
|
/* WICPngFilterSub */ PNG_FILTER_SUB,
|
|
/* WICPngFilterUp */ PNG_FILTER_UP,
|
|
/* WICPngFilterAverage */ PNG_FILTER_AVG,
|
|
/* WICPngFilterPaeth */ PNG_FILTER_PAETH,
|
|
/* WICPngFilterAdaptive */ PNG_ALL_FILTERS,
|
|
};
|
|
|
|
ppng_set_filter(This->png_ptr, 0, png_filter_map[This->filter]);
|
|
}
|
|
|
|
This->info_written = TRUE;
|
|
}
|
|
|
|
if (This->interlace)
|
|
{
|
|
/* Just store the data so we can write it in multiple passes in Commit. */
|
|
for (i=0; i<lineCount; i++)
|
|
memcpy(This->data + This->stride * (This->lines_written + i),
|
|
pbPixels + cbStride * i,
|
|
This->stride);
|
|
|
|
This->lines_written += lineCount;
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
return S_OK;
|
|
}
|
|
|
|
row_pointers = HeapAlloc(GetProcessHeap(), 0, lineCount * sizeof(png_byte*));
|
|
if (!row_pointers)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
for (i=0; i<lineCount; i++)
|
|
row_pointers[i] = pbPixels + cbStride * i;
|
|
|
|
ppng_write_rows(This->png_ptr, row_pointers, lineCount);
|
|
This->lines_written += lineCount;
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
HeapFree(GetProcessHeap(), 0, row_pointers);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngFrameEncode_WriteSource(IWICBitmapFrameEncode *iface,
|
|
IWICBitmapSource *pIBitmapSource, WICRect *prc)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapFrameEncode(iface);
|
|
HRESULT hr;
|
|
TRACE("(%p,%p,%s)\n", iface, pIBitmapSource, debug_wic_rect(prc));
|
|
|
|
if (!This->frame_initialized)
|
|
return WINCODEC_ERR_WRONGSTATE;
|
|
|
|
hr = configure_write_source(iface, pIBitmapSource, prc,
|
|
This->format ? This->format->guid : NULL, This->width, This->height,
|
|
This->xres, This->yres);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
hr = write_source(iface, pIBitmapSource, prc,
|
|
This->format->guid, This->format->bpp, This->width, This->height);
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI PngFrameEncode_Commit(IWICBitmapFrameEncode *iface)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapFrameEncode(iface);
|
|
png_byte **row_pointers=NULL;
|
|
jmp_buf jmpbuf;
|
|
TRACE("(%p)\n", iface);
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
if (!This->info_written || This->lines_written != This->height || This->frame_committed)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return WINCODEC_ERR_WRONGSTATE;
|
|
}
|
|
|
|
/* set up setjmp/longjmp error handling */
|
|
if (setjmp(jmpbuf))
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
HeapFree(GetProcessHeap(), 0, row_pointers);
|
|
return E_FAIL;
|
|
}
|
|
ppng_set_error_fn(This->png_ptr, jmpbuf, user_error_fn, user_warning_fn);
|
|
|
|
if (This->interlace)
|
|
{
|
|
int i;
|
|
|
|
row_pointers = HeapAlloc(GetProcessHeap(), 0, This->height * sizeof(png_byte*));
|
|
if (!row_pointers)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
for (i=0; i<This->height; i++)
|
|
row_pointers[i] = This->data + This->stride * i;
|
|
|
|
for (i=0; i<This->passes; i++)
|
|
ppng_write_rows(This->png_ptr, row_pointers, This->height);
|
|
}
|
|
|
|
ppng_write_end(This->png_ptr, This->info_ptr);
|
|
|
|
This->frame_committed = TRUE;
|
|
|
|
HeapFree(GetProcessHeap(), 0, row_pointers);
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngFrameEncode_GetMetadataQueryWriter(IWICBitmapFrameEncode *iface,
|
|
IWICMetadataQueryWriter **ppIMetadataQueryWriter)
|
|
{
|
|
FIXME("(%p, %p): stub\n", iface, ppIMetadataQueryWriter);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static const IWICBitmapFrameEncodeVtbl PngEncoder_FrameVtbl = {
|
|
PngFrameEncode_QueryInterface,
|
|
PngFrameEncode_AddRef,
|
|
PngFrameEncode_Release,
|
|
PngFrameEncode_Initialize,
|
|
PngFrameEncode_SetSize,
|
|
PngFrameEncode_SetResolution,
|
|
PngFrameEncode_SetPixelFormat,
|
|
PngFrameEncode_SetColorContexts,
|
|
PngFrameEncode_SetPalette,
|
|
PngFrameEncode_SetThumbnail,
|
|
PngFrameEncode_WritePixels,
|
|
PngFrameEncode_WriteSource,
|
|
PngFrameEncode_Commit,
|
|
PngFrameEncode_GetMetadataQueryWriter
|
|
};
|
|
|
|
static HRESULT WINAPI PngEncoder_QueryInterface(IWICBitmapEncoder *iface, REFIID iid,
|
|
void **ppv)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapEncoder(iface);
|
|
TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
|
|
|
|
if (!ppv) return E_INVALIDARG;
|
|
|
|
if (IsEqualIID(&IID_IUnknown, iid) ||
|
|
IsEqualIID(&IID_IWICBitmapEncoder, iid))
|
|
{
|
|
*ppv = &This->IWICBitmapEncoder_iface;
|
|
}
|
|
else
|
|
{
|
|
*ppv = NULL;
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
IUnknown_AddRef((IUnknown*)*ppv);
|
|
return S_OK;
|
|
}
|
|
|
|
static ULONG WINAPI PngEncoder_AddRef(IWICBitmapEncoder *iface)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapEncoder(iface);
|
|
ULONG ref = InterlockedIncrement(&This->ref);
|
|
|
|
TRACE("(%p) refcount=%u\n", iface, ref);
|
|
|
|
return ref;
|
|
}
|
|
|
|
static ULONG WINAPI PngEncoder_Release(IWICBitmapEncoder *iface)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapEncoder(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->png_ptr)
|
|
ppng_destroy_write_struct(&This->png_ptr, &This->info_ptr);
|
|
if (This->stream)
|
|
IStream_Release(This->stream);
|
|
HeapFree(GetProcessHeap(), 0, This->data);
|
|
HeapFree(GetProcessHeap(), 0, This);
|
|
}
|
|
|
|
return ref;
|
|
}
|
|
|
|
static void user_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
|
|
{
|
|
PngEncoder *This = ppng_get_io_ptr(png_ptr);
|
|
HRESULT hr;
|
|
ULONG byteswritten;
|
|
|
|
hr = IStream_Write(This->stream, data, length, &byteswritten);
|
|
if (FAILED(hr) || byteswritten != length)
|
|
{
|
|
ppng_error(png_ptr, "failed writing data");
|
|
}
|
|
}
|
|
|
|
static void user_flush(png_structp png_ptr)
|
|
{
|
|
}
|
|
|
|
static HRESULT WINAPI PngEncoder_Initialize(IWICBitmapEncoder *iface,
|
|
IStream *pIStream, WICBitmapEncoderCacheOption cacheOption)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapEncoder(iface);
|
|
jmp_buf jmpbuf;
|
|
|
|
TRACE("(%p,%p,%u)\n", iface, pIStream, cacheOption);
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
if (This->png_ptr)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return WINCODEC_ERR_WRONGSTATE;
|
|
}
|
|
|
|
/* initialize libpng */
|
|
This->png_ptr = ppng_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
|
|
if (!This->png_ptr)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return E_FAIL;
|
|
}
|
|
|
|
This->info_ptr = ppng_create_info_struct(This->png_ptr);
|
|
if (!This->info_ptr)
|
|
{
|
|
ppng_destroy_write_struct(&This->png_ptr, NULL);
|
|
This->png_ptr = NULL;
|
|
LeaveCriticalSection(&This->lock);
|
|
return E_FAIL;
|
|
}
|
|
|
|
IStream_AddRef(pIStream);
|
|
This->stream = pIStream;
|
|
|
|
/* set up setjmp/longjmp error handling */
|
|
if (setjmp(jmpbuf))
|
|
{
|
|
ppng_destroy_write_struct(&This->png_ptr, &This->info_ptr);
|
|
This->png_ptr = NULL;
|
|
IStream_Release(This->stream);
|
|
This->stream = NULL;
|
|
LeaveCriticalSection(&This->lock);
|
|
return E_FAIL;
|
|
}
|
|
ppng_set_error_fn(This->png_ptr, jmpbuf, user_error_fn, user_warning_fn);
|
|
|
|
/* set up custom i/o handling */
|
|
ppng_set_write_fn(This->png_ptr, This, user_write_data, user_flush);
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngEncoder_GetContainerFormat(IWICBitmapEncoder *iface, GUID *format)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, format);
|
|
|
|
if (!format)
|
|
return E_INVALIDARG;
|
|
|
|
memcpy(format, &GUID_ContainerFormatPng, sizeof(*format));
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngEncoder_GetEncoderInfo(IWICBitmapEncoder *iface, IWICBitmapEncoderInfo **info)
|
|
{
|
|
IWICComponentInfo *comp_info;
|
|
HRESULT hr;
|
|
|
|
TRACE("%p,%p\n", iface, info);
|
|
|
|
if (!info) return E_INVALIDARG;
|
|
|
|
hr = CreateComponentInfo(&CLSID_WICPngEncoder, &comp_info);
|
|
if (hr == S_OK)
|
|
{
|
|
hr = IWICComponentInfo_QueryInterface(comp_info, &IID_IWICBitmapEncoderInfo, (void **)info);
|
|
IWICComponentInfo_Release(comp_info);
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI PngEncoder_SetColorContexts(IWICBitmapEncoder *iface,
|
|
UINT cCount, IWICColorContext **ppIColorContext)
|
|
{
|
|
FIXME("(%p,%u,%p): stub\n", iface, cCount, ppIColorContext);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static HRESULT WINAPI PngEncoder_SetPalette(IWICBitmapEncoder *iface, IWICPalette *palette)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapEncoder(iface);
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p,%p)\n", iface, palette);
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
hr = This->stream ? WINCODEC_ERR_UNSUPPORTEDOPERATION : WINCODEC_ERR_NOTINITIALIZED;
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI PngEncoder_SetThumbnail(IWICBitmapEncoder *iface, IWICBitmapSource *pIThumbnail)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, pIThumbnail);
|
|
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
|
|
}
|
|
|
|
static HRESULT WINAPI PngEncoder_SetPreview(IWICBitmapEncoder *iface, IWICBitmapSource *pIPreview)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, pIPreview);
|
|
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
|
|
}
|
|
|
|
static HRESULT WINAPI PngEncoder_CreateNewFrame(IWICBitmapEncoder *iface,
|
|
IWICBitmapFrameEncode **ppIFrameEncode, IPropertyBag2 **ppIEncoderOptions)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapEncoder(iface);
|
|
HRESULT hr;
|
|
static const PROPBAG2 opts[2] =
|
|
{
|
|
{ PROPBAG2_TYPE_DATA, VT_BOOL, 0, 0, (LPOLESTR)wszPngInterlaceOption },
|
|
{ PROPBAG2_TYPE_DATA, VT_UI1, 0, 0, (LPOLESTR)wszPngFilterOption },
|
|
};
|
|
|
|
TRACE("(%p,%p,%p)\n", iface, ppIFrameEncode, ppIEncoderOptions);
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
if (This->frame_count != 0)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
|
|
}
|
|
|
|
if (!This->stream)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return WINCODEC_ERR_NOTINITIALIZED;
|
|
}
|
|
|
|
if (ppIEncoderOptions)
|
|
{
|
|
hr = CreatePropertyBag2(opts, ARRAY_SIZE(opts), ppIEncoderOptions);
|
|
if (FAILED(hr))
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return hr;
|
|
}
|
|
}
|
|
|
|
This->frame_count = 1;
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
IWICBitmapEncoder_AddRef(iface);
|
|
*ppIFrameEncode = &This->IWICBitmapFrameEncode_iface;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngEncoder_Commit(IWICBitmapEncoder *iface)
|
|
{
|
|
PngEncoder *This = impl_from_IWICBitmapEncoder(iface);
|
|
TRACE("(%p)\n", iface);
|
|
|
|
EnterCriticalSection(&This->lock);
|
|
|
|
if (!This->frame_committed || This->committed)
|
|
{
|
|
LeaveCriticalSection(&This->lock);
|
|
return WINCODEC_ERR_WRONGSTATE;
|
|
}
|
|
|
|
This->committed = TRUE;
|
|
|
|
LeaveCriticalSection(&This->lock);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI PngEncoder_GetMetadataQueryWriter(IWICBitmapEncoder *iface,
|
|
IWICMetadataQueryWriter **ppIMetadataQueryWriter)
|
|
{
|
|
FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryWriter);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static const IWICBitmapEncoderVtbl PngEncoder_Vtbl = {
|
|
PngEncoder_QueryInterface,
|
|
PngEncoder_AddRef,
|
|
PngEncoder_Release,
|
|
PngEncoder_Initialize,
|
|
PngEncoder_GetContainerFormat,
|
|
PngEncoder_GetEncoderInfo,
|
|
PngEncoder_SetColorContexts,
|
|
PngEncoder_SetPalette,
|
|
PngEncoder_SetThumbnail,
|
|
PngEncoder_SetPreview,
|
|
PngEncoder_CreateNewFrame,
|
|
PngEncoder_Commit,
|
|
PngEncoder_GetMetadataQueryWriter
|
|
};
|
|
|
|
HRESULT PngEncoder_CreateInstance(REFIID iid, void** ppv)
|
|
{
|
|
PngEncoder *This;
|
|
HRESULT ret;
|
|
|
|
TRACE("(%s,%p)\n", debugstr_guid(iid), ppv);
|
|
|
|
*ppv = NULL;
|
|
|
|
if (!load_libpng())
|
|
{
|
|
ERR("Failed writing PNG because unable to find %s\n",SONAME_LIBPNG);
|
|
return E_FAIL;
|
|
}
|
|
|
|
This = HeapAlloc(GetProcessHeap(), 0, sizeof(PngEncoder));
|
|
if (!This) return E_OUTOFMEMORY;
|
|
|
|
This->IWICBitmapEncoder_iface.lpVtbl = &PngEncoder_Vtbl;
|
|
This->IWICBitmapFrameEncode_iface.lpVtbl = &PngEncoder_FrameVtbl;
|
|
This->ref = 1;
|
|
This->png_ptr = NULL;
|
|
This->info_ptr = NULL;
|
|
This->stream = NULL;
|
|
This->frame_count = 0;
|
|
This->frame_initialized = FALSE;
|
|
This->format = NULL;
|
|
This->info_written = FALSE;
|
|
This->width = 0;
|
|
This->height = 0;
|
|
This->xres = 0.0;
|
|
This->yres = 0.0;
|
|
This->lines_written = 0;
|
|
This->frame_committed = FALSE;
|
|
This->committed = FALSE;
|
|
This->data = NULL;
|
|
This->colors = 0;
|
|
InitializeCriticalSection(&This->lock);
|
|
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": PngEncoder.lock");
|
|
|
|
ret = IWICBitmapEncoder_QueryInterface(&This->IWICBitmapEncoder_iface, iid, ppv);
|
|
IWICBitmapEncoder_Release(&This->IWICBitmapEncoder_iface);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#else /* !HAVE_PNG_H */
|
|
|
|
HRESULT PngDecoder_CreateInstance(REFIID iid, void** ppv)
|
|
{
|
|
ERR("Trying to load PNG picture, but PNG support is not compiled in.\n");
|
|
return E_FAIL;
|
|
}
|
|
|
|
HRESULT PngEncoder_CreateInstance(REFIID iid, void** ppv)
|
|
{
|
|
ERR("Trying to save PNG picture, but PNG support is not compiled in.\n");
|
|
return E_FAIL;
|
|
}
|
|
|
|
#endif
|