wincodecs_common.c File Reference

#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winternl.h"
#include "objbase.h"
#include "wincodecs_private.h"
#include "wine/debug.h"
#include "wincodecs_common.h"

Include dependency graph for wincodecs_common.c:

Go to the source code of this file.

Macros
#define	COBJMACROS

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (wincodecs)
HRESULT	configure_write_source (IWICBitmapFrameEncode *iface, IWICBitmapSource *source, const WICRect *prc, const WICPixelFormatGUID *format, INT width, INT height, double xres, double yres)
HRESULT	write_source (IWICBitmapFrameEncode *iface, IWICBitmapSource *source, const WICRect *prc, const WICPixelFormatGUID *format, UINT bpp, BOOL need_palette, INT width, INT height)
HRESULT CDECL	stream_getsize (IStream *stream, ULONGLONG *size)
HRESULT CDECL	stream_read (IStream *stream, void *buffer, ULONG read, ULONG *bytes_read)
HRESULT CDECL	stream_seek (IStream *stream, LONGLONG ofs, DWORD origin, ULONGLONG *new_position)
HRESULT CDECL	stream_write (IStream *stream, const void *buffer, ULONG write, ULONG *bytes_written)

Macro Definition Documentation

COBJMACROS

#define COBJMACROS

Definition at line 21 of file wincodecs_common.c.

Function Documentation

configure_write_source()

HRESULT configure_write_source	(	IWICBitmapFrameEncode *	iface,
		IWICBitmapSource *	source,
		const WICRect *	prc,
		const WICPixelFormatGUID *	format,
		INT	width,
		INT	height,
		double	xres,
		double	yres
	)

Definition at line 38 of file wincodecs_common.c.

{
    UINT src_width, src_height;
    HRESULT hr = S_OK;
 
    if (width == 0 && height == 0)
    {
        if (prc)
        {
            if (prc->Width <= 0 || prc->Height <= 0) return E_INVALIDARG;
            width = prc->Width;
            height = prc->Height;
        }
        else
        {
            hr = IWICBitmapSource_GetSize(source, &src_width, &src_height);
            if (FAILED(hr)) return hr;
            if (src_width == 0 || src_height == 0) return E_INVALIDARG;
            width = src_width;
            height = src_height;
        }
        hr = IWICBitmapFrameEncode_SetSize(iface, (UINT)width, (UINT)height);
        if (FAILED(hr)) return hr;
    }
    if (width == 0 || height == 0) return E_INVALIDARG;
 
    if (!format)
    {
        WICPixelFormatGUID src_format;
 
        hr = IWICBitmapSource_GetPixelFormat(source, &src_format);
        if (FAILED(hr)) return hr;
 
        hr = IWICBitmapFrameEncode_SetPixelFormat(iface, &src_format);
        if (FAILED(hr)) return hr;
    }
 
    if (xres == 0.0 || yres == 0.0)
    {
        hr = IWICBitmapSource_GetResolution(source, &xres, &yres);
        if (FAILED(hr)) return hr;
        hr = IWICBitmapFrameEncode_SetResolution(iface, xres, yres);
        if (FAILED(hr)) return hr;
    }
 
    return hr;
}

Referenced by BmpFrameEncode_WriteSource(), CommonEncoderFrame_WriteSource(), and GifFrameEncode_WriteSource().

stream_getsize()

HRESULT CDECL stream_getsize	(	IStream *	stream,
		ULONGLONG *	size
	)

Definition at line 176 of file wincodecs_common.c.

{
    STATSTG statstg;
    HRESULT hr;
 
    hr = IStream_Stat(stream, &statstg, STATFLAG_NONAME);
 
    if (SUCCEEDED(hr))
        *size = statstg.cbSize.QuadPart;
 
    return hr;
}

Referenced by tiff_stream_size().

stream_read()

HRESULT CDECL stream_read	(	IStream *	stream,
		void *	buffer,
		ULONG	read,
		ULONG *	bytes_read
	)

Definition at line 189 of file wincodecs_common.c.

{
    return IStream_Read(stream, buffer, read, bytes_read);
}

stream_seek()

HRESULT CDECL stream_seek	(	IStream *	stream,
		LONGLONG	ofs,
		DWORD	origin,
		ULONGLONG *	new_position
	)

Definition at line 194 of file wincodecs_common.c.

{
    HRESULT hr;
    LARGE_INTEGER ofs_large;
    ULARGE_INTEGER pos_large;
 
    ofs_large.QuadPart = ofs;
    hr = IStream_Seek(stream, ofs_large, origin, &pos_large);
    if (new_position)
        *new_position = pos_large.QuadPart;
 
    return hr;
}

Referenced by jpeg_decoder_initialize(), png_decoder_get_metadata_blocks(), png_decoder_initialize(), source_mgr_skip_input_data(), tiff_open_stream(), and tiff_stream_seek().

stream_write()

HRESULT CDECL stream_write	(	IStream *	stream,
		const void *	buffer,
		ULONG	write,
		ULONG *	bytes_written
	)

Definition at line 208 of file wincodecs_common.c.

{
    return IStream_Write(stream, buffer, write, bytes_written);
}

Referenced by dest_mgr_empty_output_buffer(), dest_mgr_term_destination(), tiff_stream_write(), and user_write_data().

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

wincodecs

)

write_source()

HRESULT write_source	(	IWICBitmapFrameEncode *	iface,
		IWICBitmapSource *	source,
		const WICRect *	prc,
		const WICPixelFormatGUID *	format,
		UINT	bpp,
		BOOL	need_palette,
		INT	width,
		INT	height
	)

Definition at line 89 of file wincodecs_common.c.

{
    IWICBitmapSource *converted_source;
    HRESULT hr=S_OK;
    WICRect rc;
    UINT stride;
    BYTE* pixeldata;
 
    if (!prc)
    {
        UINT src_width, src_height;
        hr = IWICBitmapSource_GetSize(source, &src_width, &src_height);
        if (FAILED(hr)) return hr;
        rc.X = 0;
        rc.Y = 0;
        rc.Width = src_width;
        rc.Height = src_height;
        prc = &rc;
    }
 
    if (prc->Width != width || prc->Height <= 0)
        return E_INVALIDARG;
 
    hr = WICConvertBitmapSource(format, source, &converted_source);
    if (FAILED(hr))
    {
        ERR("Failed to convert source, target format %s, %#lx\n", debugstr_guid(format), hr);
        return E_NOTIMPL;
    }
 
    if (need_palette)
    {
        IWICImagingFactory *factory;
        IWICPalette *palette;
 
        hr = create_instance(&CLSID_WICImagingFactory, &IID_IWICImagingFactory, (void**)&factory);
 
        if (SUCCEEDED(hr))
        {
            hr = IWICImagingFactory_CreatePalette(factory, &palette);
            IWICImagingFactory_Release(factory);
        }
 
        if (SUCCEEDED(hr))
        {
            hr = IWICBitmapSource_CopyPalette(converted_source, palette);
 
            if (SUCCEEDED(hr))
                hr = IWICBitmapFrameEncode_SetPalette(iface, palette);
 
            IWICPalette_Release(palette);
        }
 
        if (FAILED(hr))
        {
            IWICBitmapSource_Release(converted_source);
            return hr;
        }
    }
 
    stride = (bpp * width + 7)/8;
 
    pixeldata = malloc(stride * prc->Height);
    if (!pixeldata)
    {
        IWICBitmapSource_Release(converted_source);
        return E_OUTOFMEMORY;
    }
 
    hr = IWICBitmapSource_CopyPixels(converted_source, prc, stride,
        stride*prc->Height, pixeldata);
 
    if (SUCCEEDED(hr))
    {
        hr = IWICBitmapFrameEncode_WritePixels(iface, prc->Height, stride,
            stride*prc->Height, pixeldata);
    }
 
    free(pixeldata);
    IWICBitmapSource_Release(converted_source);
 
    return hr;
}

Referenced by BmpFrameEncode_WriteSource(), CommonEncoderFrame_WriteSource(), and GifFrameEncode_WriteSource().