Welcome to mirror list, hosted at ThFree Co, Russian Federation.

git.blender.org/blender.git - Unnamed repository; edit this file 'description' to name the repository.
summaryrefslogtreecommitdiff
path: root/source/blender/blendthumb/src/BlenderThumb.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'source/blender/blendthumb/src/BlenderThumb.cpp')
-rw-r--r--source/blender/blendthumb/src/BlenderThumb.cpp321
1 files changed, 0 insertions, 321 deletions
diff --git a/source/blender/blendthumb/src/BlenderThumb.cpp b/source/blender/blendthumb/src/BlenderThumb.cpp
deleted file mode 100644
index 939e7bbf67c..00000000000
--- a/source/blender/blendthumb/src/BlenderThumb.cpp
+++ /dev/null
@@ -1,321 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-
-#include <new>
-#include <shlwapi.h>
-#include <thumbcache.h> // For IThumbnailProvider.
-
-#pragma comment(lib, "shlwapi.lib")
-
-// this thumbnail provider implements IInitializeWithStream to enable being hosted
-// in an isolated process for robustness
-
-class CBlendThumb : public IInitializeWithStream, public IThumbnailProvider {
- public:
- CBlendThumb() : _cRef(1), _pStream(NULL)
- {
- }
-
- virtual ~CBlendThumb()
- {
- if (_pStream) {
- _pStream->Release();
- }
- }
-
- // IUnknown
- IFACEMETHODIMP QueryInterface(REFIID riid, void **ppv)
- {
- static const QITAB qit[] = {
- QITABENT(CBlendThumb, IInitializeWithStream),
- QITABENT(CBlendThumb, IThumbnailProvider),
- {0},
- };
- return QISearch(this, qit, riid, ppv);
- }
-
- IFACEMETHODIMP_(ULONG) AddRef()
- {
- return InterlockedIncrement(&_cRef);
- }
-
- IFACEMETHODIMP_(ULONG) Release()
- {
- ULONG cRef = InterlockedDecrement(&_cRef);
- if (!cRef) {
- delete this;
- }
- return cRef;
- }
-
- // IInitializeWithStream
- IFACEMETHODIMP Initialize(IStream *pStream, DWORD grfMode);
-
- // IThumbnailProvider
- IFACEMETHODIMP GetThumbnail(UINT cx, HBITMAP *phbmp, WTS_ALPHATYPE *pdwAlpha);
-
- private:
- long _cRef;
- IStream *_pStream; // provided during initialization.
-};
-
-HRESULT CBlendThumb_CreateInstance(REFIID riid, void **ppv)
-{
- CBlendThumb *pNew = new (std::nothrow) CBlendThumb();
- HRESULT hr = pNew ? S_OK : E_OUTOFMEMORY;
- if (SUCCEEDED(hr)) {
- hr = pNew->QueryInterface(riid, ppv);
- pNew->Release();
- }
- return hr;
-}
-
-// IInitializeWithStream
-IFACEMETHODIMP CBlendThumb::Initialize(IStream *pStream, DWORD)
-{
- HRESULT hr = E_UNEXPECTED; // can only be inited once
- if (_pStream == NULL) {
- // take a reference to the stream if we have not been inited yet
- hr = pStream->QueryInterface(&_pStream);
- }
- return hr;
-}
-
-#include "Wincodec.h"
-#include <math.h>
-#include <zlib.h>
-const unsigned char gzip_magic[3] = {0x1f, 0x8b, 0x08};
-
-// IThumbnailProvider
-IFACEMETHODIMP CBlendThumb::GetThumbnail(UINT cx, HBITMAP *phbmp, WTS_ALPHATYPE *pdwAlpha)
-{
- ULONG BytesRead;
- HRESULT hr = S_FALSE;
- LARGE_INTEGER SeekPos;
-
- // Compressed?
- unsigned char in_magic[3];
- _pStream->Read(&in_magic, 3, &BytesRead);
- bool gzipped = true;
- for (int i = 0; i < 3; i++)
- if (in_magic[i] != gzip_magic[i]) {
- gzipped = false;
- break;
- }
-
- if (gzipped) {
- // Zlib inflate
- z_stream stream;
- stream.zalloc = Z_NULL;
- stream.zfree = Z_NULL;
- stream.opaque = Z_NULL;
-
- // Get compressed file length
- SeekPos.QuadPart = 0;
- _pStream->Seek(SeekPos, STREAM_SEEK_END, NULL);
-
- // Get compressed and uncompressed size
- uLong source_size;
- uLongf dest_size;
- // SeekPos.QuadPart = -4; // last 4 bytes define size of uncompressed file
- // ULARGE_INTEGER Tell;
- //_pStream->Seek(SeekPos,STREAM_SEEK_END,&Tell);
- // source_size = (uLong)Tell.QuadPart + 4; // src
- //_pStream->Read(&dest_size,4,&BytesRead); // dest
- dest_size = 1024 * 70; // thumbnail is currently always inside the first 65KB...if it moves or
- // enlargens this line will have to change or go!
- source_size = (uLong)max(SeekPos.QuadPart, dest_size); // for safety, assume no compression
-
- // Input
- Bytef *src = new Bytef[source_size];
- stream.next_in = (Bytef *)src;
- stream.avail_in = (uInt)source_size;
-
- // Output
- Bytef *dest = new Bytef[dest_size];
- stream.next_out = (Bytef *)dest;
- stream.avail_out = dest_size;
-
- // IStream to src
- SeekPos.QuadPart = 0;
- _pStream->Seek(SeekPos, STREAM_SEEK_SET, NULL);
- _pStream->Read(src, source_size, &BytesRead);
-
- // Do the inflation
- int err;
- err = inflateInit2(&stream, 16); // 16 means "gzip"...nice!
- err = inflate(&stream, Z_FINISH);
- err = inflateEnd(&stream);
-
- // Replace the IStream, which is read-only
- _pStream->Release();
- _pStream = SHCreateMemStream(dest, dest_size);
-
- delete[] src;
- delete[] dest;
- }
-
- // Blender version, early out if sub 2.5
- SeekPos.QuadPart = 9;
- _pStream->Seek(SeekPos, STREAM_SEEK_SET, NULL);
- char version[4];
- version[3] = '\0';
- _pStream->Read(&version, 3, &BytesRead);
- if (BytesRead != 3) {
- return E_UNEXPECTED;
- }
- int iVersion = atoi(version);
- if (iVersion < 250) {
- return S_FALSE;
- }
-
- // 32 or 64 bit blend?
- SeekPos.QuadPart = 7;
- _pStream->Seek(SeekPos, STREAM_SEEK_SET, NULL);
-
- char _PointerSize;
- _pStream->Read(&_PointerSize, 1, &BytesRead);
-
- int PointerSize = _PointerSize == '_' ? 4 : 8;
- int HeaderSize = 16 + PointerSize;
-
- // Find and read thumbnail ("TEST") block
- SeekPos.QuadPart = 12;
- _pStream->Seek(SeekPos, STREAM_SEEK_SET, NULL);
- int BlockOffset = 12;
- while (_pStream) {
- // Scan current block
- char BlockName[5];
- BlockName[4] = '\0';
- int BlockSize = 0;
-
- if (_pStream->Read(BlockName, 4, &BytesRead) == S_OK &&
- _pStream->Read((void *)&BlockSize, 4, &BytesRead) == S_OK) {
- if (strcmp(BlockName, "TEST") != 0) {
- SeekPos.QuadPart = BlockOffset += HeaderSize + BlockSize;
- _pStream->Seek(SeekPos, STREAM_SEEK_SET, NULL);
- continue;
- }
- }
- else {
- break; // eof
- }
-
- // Found the block
- SeekPos.QuadPart = BlockOffset + HeaderSize;
- _pStream->Seek(SeekPos, STREAM_SEEK_SET, NULL);
-
- int width, height;
- _pStream->Read((char *)&width, 4, &BytesRead);
- _pStream->Read((char *)&height, 4, &BytesRead);
- BlockSize -= 8;
-
- // Isolate RGBA data
- char *pRGBA = new char[BlockSize];
- _pStream->Read(pRGBA, BlockSize, &BytesRead);
-
- if (BytesRead != (ULONG)BlockSize) {
- return E_UNEXPECTED;
- }
-
- // Convert to BGRA for Windows
- for (int i = 0; i < BlockSize; i += 4) {
-#define RED_BYTE pRGBA[i]
-#define BLUE_BYTE pRGBA[i + 2]
-
- char red = RED_BYTE;
- RED_BYTE = BLUE_BYTE;
- BLUE_BYTE = red;
- }
-
- // Flip vertically (Blender stores it upside-down)
- unsigned int LineSize = width * 4;
- char *FlippedImage = new char[BlockSize];
- for (int i = 0; i < height; i++) {
- if (0 != memcpy_s(&FlippedImage[(height - i - 1) * LineSize],
- LineSize,
- &pRGBA[i * LineSize],
- LineSize)) {
- return E_UNEXPECTED;
- }
- }
- delete[] pRGBA;
- pRGBA = FlippedImage;
-
- // Create image
- *phbmp = CreateBitmap(width, height, 1, 32, pRGBA);
- if (!*phbmp) {
- return E_FAIL;
- }
- *pdwAlpha = WTSAT_ARGB; // it's actually BGRA, not sure why this works
-
- // Scale down if required
- if ((unsigned)width > cx || (unsigned)height > cx) {
- float scale = 1.0f / (max(width, height) / (float)cx);
- LONG NewWidth = (LONG)(width * scale);
- LONG NewHeight = (LONG)(height * scale);
-
-#ifdef _DEBUG
-# if 0
- MessageBox(0, "Attach now", "Debugging", MB_OK);
-# endif
-#endif
- IWICImagingFactory *pImgFac;
- hr = CoCreateInstance(
- CLSID_WICImagingFactory, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&pImgFac));
-
- IWICBitmap *WICBmp;
- hr = pImgFac->CreateBitmapFromHBITMAP(*phbmp, 0, WICBitmapUseAlpha, &WICBmp);
-
- BITMAPINFO bmi = {};
- bmi.bmiHeader.biSize = sizeof(bmi.bmiHeader);
- bmi.bmiHeader.biWidth = NewWidth;
- bmi.bmiHeader.biHeight = -NewHeight;
- bmi.bmiHeader.biPlanes = 1;
- bmi.bmiHeader.biBitCount = 32;
- bmi.bmiHeader.biCompression = BI_RGB;
-
- BYTE *pBits;
- HBITMAP ResizedHBmp = CreateDIBSection(NULL, &bmi, DIB_RGB_COLORS, (void **)&pBits, NULL, 0);
- hr = ResizedHBmp ? S_OK : E_OUTOFMEMORY;
- if (SUCCEEDED(hr)) {
- IWICBitmapScaler *pIScaler;
- hr = pImgFac->CreateBitmapScaler(&pIScaler);
- hr = pIScaler->Initialize(WICBmp, NewWidth, NewHeight, WICBitmapInterpolationModeFant);
-
- WICRect rect = {0, 0, NewWidth, NewHeight};
- hr = pIScaler->CopyPixels(&rect, NewWidth * 4, NewWidth * NewHeight * 4, pBits);
-
- if (SUCCEEDED(hr)) {
- DeleteObject(*phbmp);
- *phbmp = ResizedHBmp;
- }
- else {
- DeleteObject(ResizedHBmp);
- }
-
- pIScaler->Release();
- }
- WICBmp->Release();
- pImgFac->Release();
- }
- else {
- hr = S_OK;
- }
- break;
- }
- return hr;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 12:55:19 +0300