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windowscodecs: Implement JpegEncoder_Initialize.

This commit is contained in:
Vincent Povirk 2011-06-10 15:10:49 -05:00 committed by Alexandre Julliard
parent 2e2b045db0
commit 8a066b2c20
1 changed files with 115 additions and 2 deletions
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117
dlls/windowscodecs/jpegformat.c
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@ -62,7 +62,9 @@ WINE_DECLARE_DEBUG_CHANNEL(jpeg);
static void *libjpeg_handle;
#define MAKE_FUNCPTR(f) static typeof(f) * p##f
MAKE_FUNCPTR(jpeg_CreateCompress);
MAKE_FUNCPTR(jpeg_CreateDecompress);
MAKE_FUNCPTR(jpeg_destroy_compress);
MAKE_FUNCPTR(jpeg_destroy_decompress);
MAKE_FUNCPTR(jpeg_read_header);
MAKE_FUNCPTR(jpeg_read_scanlines);
@ -81,7 +83,9 @@ static void *load_libjpeg(void)
return NULL; \
}
LOAD_FUNCPTR(jpeg_CreateCompress);
LOAD_FUNCPTR(jpeg_CreateDecompress);
LOAD_FUNCPTR(jpeg_destroy_compress);
LOAD_FUNCPTR(jpeg_destroy_decompress);
LOAD_FUNCPTR(jpeg_read_header);
LOAD_FUNCPTR(jpeg_read_scanlines);
@ -700,6 +704,13 @@ HRESULT JpegDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
typedef struct JpegEncoder {
IWICBitmapEncoder IWICBitmapEncoder_iface;
LONG ref;
struct jpeg_compress_struct cinfo;
struct jpeg_error_mgr jerr;
struct jpeg_destination_mgr dest_mgr;
int initialized;
IStream *stream;
CRITICAL_SECTION lock;
BYTE dest_buffer[1024];
} JpegEncoder;
static inline JpegEncoder *impl_from_IWICBitmapEncoder(IWICBitmapEncoder *iface)
@ -707,6 +718,55 @@ static inline JpegEncoder *impl_from_IWICBitmapEncoder(IWICBitmapEncoder *iface)
return CONTAINING_RECORD(iface, JpegEncoder, IWICBitmapEncoder_iface);
}
static inline JpegEncoder *encoder_from_compress(j_compress_ptr compress)
{
return CONTAINING_RECORD(compress, JpegEncoder, cinfo);
}
static void dest_mgr_init_destination(j_compress_ptr cinfo)
{
JpegEncoder *This = encoder_from_compress(cinfo);
This->dest_mgr.next_output_byte = This->dest_buffer;
This->dest_mgr.free_in_buffer = sizeof(This->dest_buffer);
}
static jpeg_boolean dest_mgr_empty_output_buffer(j_compress_ptr cinfo)
{
JpegEncoder *This = encoder_from_compress(cinfo);
HRESULT hr;
ULONG byteswritten;
hr = IStream_Write(This->stream, This->dest_buffer,
sizeof(This->dest_buffer), &byteswritten);
if (hr != S_OK || byteswritten == 0)
{
ERR("Failed writing data, hr=%x\n", hr);
return FALSE;
}
This->dest_mgr.next_output_byte = This->dest_buffer;
This->dest_mgr.free_in_buffer = sizeof(This->dest_buffer);
return TRUE;
}
static void dest_mgr_term_destination(j_compress_ptr cinfo)
{
JpegEncoder *This = encoder_from_compress(cinfo);
ULONG byteswritten;
HRESULT hr;
if (This->dest_mgr.free_in_buffer != sizeof(This->dest_buffer))
{
hr = IStream_Write(This->stream, This->dest_buffer,
sizeof(This->dest_buffer) - This->dest_mgr.free_in_buffer, &byteswritten);
if (hr != S_OK || byteswritten == 0)
ERR("Failed writing data, hr=%x\n", hr);
}
}
static HRESULT WINAPI JpegEncoder_QueryInterface(IWICBitmapEncoder *iface, REFIID iid,
void **ppv)
{
@ -749,6 +809,10 @@ static ULONG WINAPI JpegEncoder_Release(IWICBitmapEncoder *iface)
if (ref == 0)
{
This->lock.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&This->lock);
if (This->initialized) pjpeg_destroy_compress(&This->cinfo);
if (This->stream) IStream_Release(This->stream);
HeapFree(GetProcessHeap(), 0, This);
}
@ -758,8 +822,53 @@ static ULONG WINAPI JpegEncoder_Release(IWICBitmapEncoder *iface)
static HRESULT WINAPI JpegEncoder_Initialize(IWICBitmapEncoder *iface,
IStream *pIStream, WICBitmapEncoderCacheOption cacheOption)
{
FIXME("(%p,%p,%u): stub\n", iface, pIStream, cacheOption);
return E_NOTIMPL;
JpegEncoder *This = impl_from_IWICBitmapEncoder(iface);
jmp_buf jmpbuf;
TRACE("(%p,%p,%u)\n", iface, pIStream, cacheOption);
EnterCriticalSection(&This->lock);
if (This->initialized)
{
LeaveCriticalSection(&This->lock);
return WINCODEC_ERR_WRONGSTATE;
}
pjpeg_std_error(&This->jerr);
This->jerr.error_exit = error_exit_fn;
This->jerr.emit_message = emit_message_fn;
This->cinfo.err = &This->jerr;
This->cinfo.client_data = &jmpbuf;
if (setjmp(jmpbuf))
{
LeaveCriticalSection(&This->lock);
return E_FAIL;
}
pjpeg_CreateCompress(&This->cinfo, JPEG_LIB_VERSION, sizeof(struct jpeg_compress_struct));
This->stream = pIStream;
IStream_AddRef(pIStream);
This->dest_mgr.next_output_byte = This->dest_buffer;
This->dest_mgr.free_in_buffer = sizeof(This->dest_buffer);
This->dest_mgr.init_destination = dest_mgr_init_destination;
This->dest_mgr.empty_output_buffer = dest_mgr_empty_output_buffer;
This->dest_mgr.term_destination = dest_mgr_term_destination;
This->cinfo.dest = &This->dest_mgr;
This->initialized = TRUE;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI JpegEncoder_GetContainerFormat(IWICBitmapEncoder *iface,
@ -859,6 +968,10 @@ HRESULT JpegEncoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
This->IWICBitmapEncoder_iface.lpVtbl = &JpegEncoder_Vtbl;
This->ref = 1;
This->initialized = 0;
This->stream = NULL;
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": JpegEncoder.lock");
ret = IUnknown_QueryInterface((IUnknown*)This, iid, ppv);
IUnknown_Release((IUnknown*)This);