main.c File Reference

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

Include dependency graph for main.c:

Go to the source code of this file.

Macros
#define	COBJMACROS

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (wincodecs)
BOOL WINAPI	WIC_DllMain (HINSTANCE, DWORD, LPVOID)
HRESULT WINAPI	DllCanUnloadNow (void)
HRESULT	copy_pixels (UINT bpp, const BYTE *srcbuffer, UINT srcwidth, UINT srcheight, INT srcstride, const WICRect *rc, UINT dststride, UINT dstbuffersize, BYTE *dstbuffer)
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, INT width, INT height)
void	reverse_bgr8 (UINT bytesperpixel, LPBYTE bits, UINT width, UINT height, INT stride)
void	convert_rgba_to_bgra (UINT bytesperpixel, LPBYTE bits, UINT width, UINT height, INT stride)
HRESULT	get_pixelformat_bpp (const GUID *pixelformat, UINT *bpp)

Macro Definition Documentation

COBJMACROS

#define COBJMACROS

Definition at line 20 of file main.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 123 of file main.c.

{
    HRESULT hr = S_OK;
 
    if (width == 0 || height == 0)
        return WINCODEC_ERR_WRONGSTATE;
 
    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(), and GifFrameEncode_WriteSource().

convert_rgba_to_bgra()

void convert_rgba_to_bgra	(	UINT	bytesperpixel,
		LPBYTE	bits,
		UINT	width,
		UINT	height,
		INT	stride
	)

Definition at line 231 of file main.c.

{
    UINT x, y;
    BYTE *pixel, temp;
 
    for (y=0; y<height; y++)
    {
        pixel = bits + stride * y;
 
        for (x=0; x<width; x++)
        {
            temp = pixel[3];
            pixel[3] = pixel[0];
            pixel[0] = pixel[1];
            pixel[1] = pixel[2];
            pixel[2] = temp;
            pixel += bytesperpixel;
        }
    }
}

Referenced by copypixels_to_32bppBGRA().

copy_pixels()

HRESULT copy_pixels	(	UINT	bpp,
		const BYTE *	srcbuffer,
		UINT	srcwidth,
		UINT	srcheight,
		INT	srcstride,
		const WICRect *	rc,
		UINT	dststride,
		UINT	dstbuffersize,
		BYTE *	dstbuffer
	)

Definition at line 58 of file main.c.

{
    UINT bytesperrow;
    UINT row_offset; /* number of bits into the source rows where the data starts */
    WICRect rect;
 
    if (!rc)
    {
        rect.X = 0;
        rect.Y = 0;
        rect.Width = srcwidth;
        rect.Height = srcheight;
        rc = ▭
    }
    else
    {
        if (rc->X < 0 || rc->Y < 0 || rc->X+rc->Width > srcwidth || rc->Y+rc->Height > srcheight)
            return E_INVALIDARG;
    }
 
    bytesperrow = ((bpp * rc->Width)+7)/8;
 
    if (dststride < bytesperrow)
        return E_INVALIDARG;
 
    if ((dststride * (rc->Height-1)) + bytesperrow > dstbuffersize)
        return E_INVALIDARG;
 
    /* if the whole bitmap is copied and the buffer format matches then it's a matter of a single memcpy */
    if (rc->X == 0 && rc->Y == 0 && rc->Width == srcwidth && rc->Height == srcheight &&
        srcstride == dststride && srcstride == bytesperrow)
    {
        memcpy(dstbuffer, srcbuffer, srcstride * srcheight);
        return S_OK;
    }
 
    row_offset = rc->X * bpp;
 
    if (row_offset % 8 == 0)
    {
        /* everything lines up on a byte boundary */
        INT row;
        const BYTE *src;
        BYTE *dst;
 
        src = srcbuffer + (row_offset / 8) + srcstride * rc->Y;
        dst = dstbuffer;
        for (row=0; row < rc->Height; row++)
        {
            memcpy(dst, src, bytesperrow);
            src += srcstride;
            dst += dststride;
        }
        return S_OK;
    }
    else
    {
        /* we have to do a weird bitwise copy. eww. */
        FIXME("cannot reliably copy bitmap data if bpp < 8\n");
        return E_FAIL;
    }
}

DllCanUnloadNow()

HRESULT WINAPI DllCanUnloadNow

(

void

)

Definition at line 53 of file main.c.

{
    return S_FALSE;
}

get_pixelformat_bpp()

HRESULT get_pixelformat_bpp	(	const GUID *	pixelformat,
		UINT *	bpp
	)

Definition at line 252 of file main.c.

{
    HRESULT hr;
    IWICComponentInfo *info;
    IWICPixelFormatInfo *formatinfo;
 
    hr = CreateComponentInfo(pixelformat, &info);
    if (SUCCEEDED(hr))
    {
        hr = IWICComponentInfo_QueryInterface(info, &IID_IWICPixelFormatInfo, (void**)&formatinfo);
 
        if (SUCCEEDED(hr))
        {
            hr = IWICPixelFormatInfo_GetBitsPerPixel(formatinfo, bpp);
 
            IWICPixelFormatInfo_Release(formatinfo);
        }
 
        IWICComponentInfo_Release(info);
    }
 
    return hr;
}

Referenced by BitmapImpl_Create(), BitmapScaler_Initialize(), FormatConverter_CopyPalette(), FormatConverter_Initialize(), and WICCreateBitmapFromSectionEx().

reverse_bgr8()

void reverse_bgr8	(	UINT	bytesperpixel,
		LPBYTE	bits,
		UINT	width,
		UINT	height,
		INT	stride
	)

Definition at line 212 of file main.c.

{
    UINT x, y;
    BYTE *pixel, temp;
 
    for (y=0; y<height; y++)
    {
        pixel = bits + stride * y;
 
        for (x=0; x<width; x++)
        {
            temp = pixel[2];
            pixel[2] = pixel[0];
            pixel[0] = temp;
            pixel += bytesperpixel;
        }
    }
}

Referenced by BmpFrameDecode_ReadRGB8(), copypixels_to_24bppBGR(), copypixels_to_24bppRGB(), and copypixels_to_32bppRGBA().

WIC_DllMain()

BOOL WINAPI WIC_DllMain	(	HINSTANCE	,
		DWORD	,
		LPVOID
	)

Definition at line 35 of file main.c.

{
 
    switch (fdwReason)
    {
        case DLL_PROCESS_ATTACH:
            DisableThreadLibraryCalls(hinstDLL);
            break;
        case DLL_PROCESS_DETACH:
            ReleaseComponentInfos();
            break;
    }
 
    return WIC_DllMain(hinstDLL, fdwReason, lpvReserved);
}

Referenced by WIC_DllMain().

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,
		INT	width,
		INT	height
	)

Definition at line 155 of file main.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, %#x\n", debugstr_guid(format), hr);
        return E_NOTIMPL;
    }
 
    stride = (bpp * width + 7)/8;
 
    pixeldata = HeapAlloc(GetProcessHeap(), 0, 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);
    }
 
    HeapFree(GetProcessHeap(), 0, pixeldata);
    IWICBitmapSource_Release(converted_source);
 
    return hr;
}

Referenced by BmpFrameEncode_WriteSource(), and GifFrameEncode_WriteSource().