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569 lines
16 KiB
C
569 lines
16 KiB
C
/*
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* Copyright 2010 Vincent Povirk for CodeWeavers
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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 <stdarg.h>
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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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WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
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typedef struct BitmapScaler {
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IWICBitmapScaler IWICBitmapScaler_iface;
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LONG ref;
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IMILBitmapScaler IMILBitmapScaler_iface;
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IWICBitmapSource *source;
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UINT width, height;
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UINT src_width, src_height;
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WICBitmapInterpolationMode mode;
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UINT bpp;
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void (*fn_get_required_source_rect)(struct BitmapScaler*,UINT,UINT,WICRect*);
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void (*fn_copy_scanline)(struct BitmapScaler*,UINT,UINT,UINT,BYTE**,UINT,UINT,BYTE*);
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CRITICAL_SECTION lock; /* must be held when initialized */
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} BitmapScaler;
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static inline BitmapScaler *impl_from_IWICBitmapScaler(IWICBitmapScaler *iface)
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{
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return CONTAINING_RECORD(iface, BitmapScaler, IWICBitmapScaler_iface);
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}
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static inline BitmapScaler *impl_from_IMILBitmapScaler(IMILBitmapScaler *iface)
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{
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return CONTAINING_RECORD(iface, BitmapScaler, IMILBitmapScaler_iface);
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}
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static HRESULT WINAPI BitmapScaler_QueryInterface(IWICBitmapScaler *iface, REFIID iid,
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void **ppv)
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{
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BitmapScaler *This = impl_from_IWICBitmapScaler(iface);
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TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
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if (!ppv) return E_INVALIDARG;
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if (IsEqualIID(&IID_IUnknown, iid) ||
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IsEqualIID(&IID_IWICBitmapSource, iid) ||
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IsEqualIID(&IID_IWICBitmapScaler, iid))
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{
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*ppv = &This->IWICBitmapScaler_iface;
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}
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else if (IsEqualIID(&IID_IMILBitmapScaler, iid))
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{
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*ppv = &This->IMILBitmapScaler_iface;
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}
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else
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{
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FIXME("unknown interface %s\n", debugstr_guid(iid));
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*ppv = NULL;
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return E_NOINTERFACE;
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}
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IUnknown_AddRef((IUnknown*)*ppv);
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return S_OK;
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}
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static ULONG WINAPI BitmapScaler_AddRef(IWICBitmapScaler *iface)
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{
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BitmapScaler *This = impl_from_IWICBitmapScaler(iface);
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ULONG ref = InterlockedIncrement(&This->ref);
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TRACE("(%p) refcount=%u\n", iface, ref);
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return ref;
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}
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static ULONG WINAPI BitmapScaler_Release(IWICBitmapScaler *iface)
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{
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BitmapScaler *This = impl_from_IWICBitmapScaler(iface);
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ULONG ref = InterlockedDecrement(&This->ref);
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TRACE("(%p) refcount=%u\n", iface, ref);
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if (ref == 0)
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{
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This->lock.DebugInfo->Spare[0] = 0;
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DeleteCriticalSection(&This->lock);
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if (This->source) IWICBitmapSource_Release(This->source);
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HeapFree(GetProcessHeap(), 0, This);
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}
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return ref;
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}
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static HRESULT WINAPI BitmapScaler_GetSize(IWICBitmapScaler *iface,
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UINT *puiWidth, UINT *puiHeight)
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{
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BitmapScaler *This = impl_from_IWICBitmapScaler(iface);
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TRACE("(%p,%p,%p)\n", iface, puiWidth, puiHeight);
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if (!puiWidth || !puiHeight)
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return E_INVALIDARG;
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if (!This->source)
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return WINCODEC_ERR_WRONGSTATE;
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*puiWidth = This->width;
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*puiHeight = This->height;
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return S_OK;
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}
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static HRESULT WINAPI BitmapScaler_GetPixelFormat(IWICBitmapScaler *iface,
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WICPixelFormatGUID *pPixelFormat)
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{
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BitmapScaler *This = impl_from_IWICBitmapScaler(iface);
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TRACE("(%p,%p)\n", iface, pPixelFormat);
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if (!pPixelFormat)
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return E_INVALIDARG;
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if (!This->source)
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return WINCODEC_ERR_WRONGSTATE;
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return IWICBitmapSource_GetPixelFormat(This->source, pPixelFormat);
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}
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static HRESULT WINAPI BitmapScaler_GetResolution(IWICBitmapScaler *iface,
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double *pDpiX, double *pDpiY)
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{
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BitmapScaler *This = impl_from_IWICBitmapScaler(iface);
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TRACE("(%p,%p,%p)\n", iface, pDpiX, pDpiY);
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if (!pDpiX || !pDpiY)
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return E_INVALIDARG;
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if (!This->source)
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return WINCODEC_ERR_WRONGSTATE;
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return IWICBitmapSource_GetResolution(This->source, pDpiX, pDpiY);
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}
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static HRESULT WINAPI BitmapScaler_CopyPalette(IWICBitmapScaler *iface,
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IWICPalette *pIPalette)
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{
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BitmapScaler *This = impl_from_IWICBitmapScaler(iface);
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TRACE("(%p,%p)\n", iface, pIPalette);
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if (!pIPalette)
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return E_INVALIDARG;
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if (!This->source)
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return WINCODEC_ERR_WRONGSTATE;
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return IWICBitmapSource_CopyPalette(This->source, pIPalette);
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}
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static void NearestNeighbor_GetRequiredSourceRect(BitmapScaler *This,
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UINT x, UINT y, WICRect *src_rect)
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{
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src_rect->X = x * This->src_width / This->width;
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src_rect->Y = y * This->src_height / This->height;
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src_rect->Width = src_rect->Height = 1;
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}
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static void NearestNeighbor_CopyScanline(BitmapScaler *This,
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UINT dst_x, UINT dst_y, UINT dst_width,
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BYTE **src_data, UINT src_data_x, UINT src_data_y, BYTE *pbBuffer)
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{
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UINT i;
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UINT bytesperpixel = This->bpp/8;
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UINT src_x, src_y;
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src_y = dst_y * This->src_height / This->height - src_data_y;
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for (i=0; i<dst_width; i++)
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{
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src_x = (dst_x + i) * This->src_width / This->width - src_data_x;
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memcpy(pbBuffer + bytesperpixel * i, src_data[src_y] + bytesperpixel * src_x, bytesperpixel);
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}
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}
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static HRESULT WINAPI BitmapScaler_CopyPixels(IWICBitmapScaler *iface,
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const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
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{
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BitmapScaler *This = impl_from_IWICBitmapScaler(iface);
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HRESULT hr;
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WICRect dest_rect;
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WICRect src_rect_ul, src_rect_br, src_rect;
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BYTE **src_rows;
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BYTE *src_bits;
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ULONG bytesperrow;
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ULONG src_bytesperrow;
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ULONG buffer_size;
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UINT y;
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TRACE("(%p,%p,%u,%u,%p)\n", iface, prc, cbStride, cbBufferSize, pbBuffer);
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EnterCriticalSection(&This->lock);
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if (!This->source)
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{
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hr = WINCODEC_ERR_WRONGSTATE;
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goto end;
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}
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if (prc)
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dest_rect = *prc;
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else
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{
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dest_rect.X = dest_rect.Y = 0;
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dest_rect.Width = This->width;
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dest_rect.Height = This->height;
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}
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if (dest_rect.X < 0 || dest_rect.Y < 0 ||
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dest_rect.X+dest_rect.Width > This->width|| dest_rect.Y+dest_rect.Height > This->height)
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{
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hr = E_INVALIDARG;
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goto end;
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}
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bytesperrow = ((This->bpp * dest_rect.Width)+7)/8;
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if (cbStride < bytesperrow)
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{
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hr = E_INVALIDARG;
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goto end;
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}
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if ((cbStride * dest_rect.Height) > cbBufferSize)
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{
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hr = E_INVALIDARG;
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goto end;
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}
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/* MSDN recommends calling CopyPixels once for each scanline from top to
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* bottom, and claims codecs optimize for this. Ideally, when called in this
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* way, we should avoid requesting a scanline from the source more than
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* once, by saving the data that will be useful for the next scanline after
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* the call returns. The GetRequiredSourceRect/CopyScanline functions are
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* designed to make it possible to do this in a generic way, but for now we
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* just grab all the data we need in each call. */
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This->fn_get_required_source_rect(This, dest_rect.X, dest_rect.Y, &src_rect_ul);
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This->fn_get_required_source_rect(This, dest_rect.X+dest_rect.Width-1,
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dest_rect.Y+dest_rect.Height-1, &src_rect_br);
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src_rect.X = src_rect_ul.X;
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src_rect.Y = src_rect_ul.Y;
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src_rect.Width = src_rect_br.Width + src_rect_br.X - src_rect_ul.X;
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src_rect.Height = src_rect_br.Height + src_rect_br.Y - src_rect_ul.Y;
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src_bytesperrow = (src_rect.Width * This->bpp + 7)/8;
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buffer_size = src_bytesperrow * src_rect.Height;
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src_rows = HeapAlloc(GetProcessHeap(), 0, sizeof(BYTE*) * src_rect.Height);
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src_bits = HeapAlloc(GetProcessHeap(), 0, buffer_size);
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if (!src_rows || !src_bits)
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{
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HeapFree(GetProcessHeap(), 0, src_rows);
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HeapFree(GetProcessHeap(), 0, src_bits);
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hr = E_OUTOFMEMORY;
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goto end;
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}
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for (y=0; y<src_rect.Height; y++)
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src_rows[y] = src_bits + y * src_bytesperrow;
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hr = IWICBitmapSource_CopyPixels(This->source, &src_rect, src_bytesperrow,
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buffer_size, src_bits);
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if (SUCCEEDED(hr))
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{
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for (y=0; y < dest_rect.Height; y++)
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{
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This->fn_copy_scanline(This, dest_rect.X, dest_rect.Y+y, dest_rect.Width,
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src_rows, src_rect.X, src_rect.Y, pbBuffer + cbStride * y);
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}
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}
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HeapFree(GetProcessHeap(), 0, src_rows);
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HeapFree(GetProcessHeap(), 0, src_bits);
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end:
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LeaveCriticalSection(&This->lock);
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return hr;
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}
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static HRESULT WINAPI BitmapScaler_Initialize(IWICBitmapScaler *iface,
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IWICBitmapSource *pISource, UINT uiWidth, UINT uiHeight,
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WICBitmapInterpolationMode mode)
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{
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BitmapScaler *This = impl_from_IWICBitmapScaler(iface);
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HRESULT hr;
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GUID src_pixelformat;
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TRACE("(%p,%p,%u,%u,%u)\n", iface, pISource, uiWidth, uiHeight, mode);
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EnterCriticalSection(&This->lock);
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if (This->source)
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{
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hr = WINCODEC_ERR_WRONGSTATE;
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goto end;
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}
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This->width = uiWidth;
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This->height = uiHeight;
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This->mode = mode;
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hr = IWICBitmapSource_GetSize(pISource, &This->src_width, &This->src_height);
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if (SUCCEEDED(hr))
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hr = IWICBitmapSource_GetPixelFormat(pISource, &src_pixelformat);
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if (SUCCEEDED(hr))
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{
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hr = get_pixelformat_bpp(&src_pixelformat, &This->bpp);
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}
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if (SUCCEEDED(hr))
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{
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switch (mode)
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{
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default:
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FIXME("unsupported mode %i\n", mode);
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/* fall-through */
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case WICBitmapInterpolationModeNearestNeighbor:
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if ((This->bpp % 8) == 0)
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{
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IWICBitmapSource_AddRef(pISource);
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This->source = pISource;
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}
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else
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{
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hr = WICConvertBitmapSource(&GUID_WICPixelFormat32bppBGRA,
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pISource, &This->source);
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This->bpp = 32;
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}
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This->fn_get_required_source_rect = NearestNeighbor_GetRequiredSourceRect;
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This->fn_copy_scanline = NearestNeighbor_CopyScanline;
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break;
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}
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}
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end:
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LeaveCriticalSection(&This->lock);
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return hr;
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}
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static const IWICBitmapScalerVtbl BitmapScaler_Vtbl = {
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BitmapScaler_QueryInterface,
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BitmapScaler_AddRef,
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BitmapScaler_Release,
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BitmapScaler_GetSize,
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BitmapScaler_GetPixelFormat,
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BitmapScaler_GetResolution,
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BitmapScaler_CopyPalette,
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BitmapScaler_CopyPixels,
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BitmapScaler_Initialize
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};
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static HRESULT WINAPI IMILBitmapScaler_QueryInterface(IMILBitmapScaler *iface, REFIID iid,
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void **ppv)
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{
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BitmapScaler *This = impl_from_IMILBitmapScaler(iface);
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TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
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if (!ppv) return E_INVALIDARG;
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if (IsEqualIID(&IID_IUnknown, iid) ||
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IsEqualIID(&IID_IMILBitmapScaler, iid) ||
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IsEqualIID(&IID_IMILBitmapSource, iid))
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{
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IUnknown_AddRef(&This->IMILBitmapScaler_iface);
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*ppv = &This->IMILBitmapScaler_iface;
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return S_OK;
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}
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else if (IsEqualIID(&IID_IWICBitmapScaler, iid) ||
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IsEqualIID(&IID_IWICBitmapSource, iid))
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{
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IUnknown_AddRef(&This->IWICBitmapScaler_iface);
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*ppv = &This->IWICBitmapScaler_iface;
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return S_OK;
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}
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FIXME("unknown interface %s\n", debugstr_guid(iid));
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*ppv = NULL;
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return E_NOINTERFACE;
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}
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static ULONG WINAPI IMILBitmapScaler_AddRef(IMILBitmapScaler *iface)
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{
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BitmapScaler *This = impl_from_IMILBitmapScaler(iface);
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return IWICBitmapScaler_AddRef(&This->IWICBitmapScaler_iface);
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}
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static ULONG WINAPI IMILBitmapScaler_Release(IMILBitmapScaler *iface)
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{
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BitmapScaler *This = impl_from_IMILBitmapScaler(iface);
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return IWICBitmapScaler_Release(&This->IWICBitmapScaler_iface);
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}
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static HRESULT WINAPI IMILBitmapScaler_GetSize(IMILBitmapScaler *iface,
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UINT *width, UINT *height)
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{
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BitmapScaler *This = impl_from_IMILBitmapScaler(iface);
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TRACE("(%p,%p,%p)\n", iface, width, height);
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if (!This->source)
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return WINCODEC_ERR_NOTINITIALIZED;
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return IWICBitmapScaler_GetSize(&This->IWICBitmapScaler_iface, width, height);
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}
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static HRESULT WINAPI IMILBitmapScaler_GetPixelFormat(IMILBitmapScaler *iface,
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int *format)
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{
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BitmapScaler *This = impl_from_IMILBitmapScaler(iface);
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IMILBitmapSource *source;
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HRESULT hr;
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TRACE("(%p,%p)\n", iface, format);
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if (!format) return E_INVALIDARG;
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if (!This->source)
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return WINCODEC_ERR_NOTINITIALIZED;
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hr = IWICBitmapSource_QueryInterface(This->source, &IID_IMILBitmapSource, (void **)&source);
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if (hr == S_OK)
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{
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hr = source->lpVtbl->GetPixelFormat(source, format);
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source->lpVtbl->Release(source);
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}
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return hr;
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}
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static HRESULT WINAPI IMILBitmapScaler_GetResolution(IMILBitmapScaler *iface,
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double *dpix, double *dpiy)
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{
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BitmapScaler *This = impl_from_IMILBitmapScaler(iface);
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TRACE("(%p,%p,%p)\n", iface, dpix, dpiy);
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if (!This->source)
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return WINCODEC_ERR_NOTINITIALIZED;
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return IWICBitmapScaler_GetResolution(&This->IWICBitmapScaler_iface, dpix, dpiy);
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}
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static HRESULT WINAPI IMILBitmapScaler_CopyPalette(IMILBitmapScaler *iface,
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IWICPalette *palette)
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{
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BitmapScaler *This = impl_from_IMILBitmapScaler(iface);
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TRACE("(%p,%p)\n", iface, palette);
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if (!This->source)
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return WINCODEC_ERR_NOTINITIALIZED;
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return IWICBitmapScaler_CopyPalette(&This->IWICBitmapScaler_iface, palette);
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}
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static HRESULT WINAPI IMILBitmapScaler_CopyPixels(IMILBitmapScaler *iface,
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const WICRect *rc, UINT stride, UINT size, BYTE *buffer)
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{
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BitmapScaler *This = impl_from_IMILBitmapScaler(iface);
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TRACE("(%p,%p,%u,%u,%p)\n", iface, rc, stride, size, buffer);
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if (!This->source)
|
|
return WINCODEC_ERR_NOTINITIALIZED;
|
|
|
|
return IWICBitmapScaler_CopyPixels(&This->IWICBitmapScaler_iface, rc, stride, size, buffer);
|
|
}
|
|
|
|
static HRESULT WINAPI IMILBitmapScaler_unknown1(IMILBitmapScaler *iface, void **ppv)
|
|
{
|
|
TRACE("(%p,%p)\n", iface, ppv);
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
static HRESULT WINAPI IMILBitmapScaler_Initialize(IMILBitmapScaler *iface,
|
|
IMILBitmapSource *mil_source, UINT width, UINT height,
|
|
WICBitmapInterpolationMode mode)
|
|
{
|
|
BitmapScaler *This = impl_from_IMILBitmapScaler(iface);
|
|
IWICBitmapSource *wic_source;
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p,%p,%u,%u,%u)\n", iface, mil_source, width, height, mode);
|
|
|
|
if (!mil_source) return E_INVALIDARG;
|
|
|
|
hr = mil_source->lpVtbl->QueryInterface(mil_source, &IID_IWICBitmapSource, (void **)&wic_source);
|
|
if (hr == S_OK)
|
|
{
|
|
hr = IWICBitmapScaler_Initialize(&This->IWICBitmapScaler_iface, wic_source, width, height, mode);
|
|
IWICBitmapSource_Release(wic_source);
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
static const IMILBitmapScalerVtbl IMILBitmapScaler_Vtbl = {
|
|
IMILBitmapScaler_QueryInterface,
|
|
IMILBitmapScaler_AddRef,
|
|
IMILBitmapScaler_Release,
|
|
IMILBitmapScaler_GetSize,
|
|
IMILBitmapScaler_GetPixelFormat,
|
|
IMILBitmapScaler_GetResolution,
|
|
IMILBitmapScaler_CopyPalette,
|
|
IMILBitmapScaler_CopyPixels,
|
|
IMILBitmapScaler_unknown1,
|
|
IMILBitmapScaler_Initialize
|
|
};
|
|
|
|
HRESULT BitmapScaler_Create(IWICBitmapScaler **scaler)
|
|
{
|
|
BitmapScaler *This;
|
|
|
|
This = HeapAlloc(GetProcessHeap(), 0, sizeof(BitmapScaler));
|
|
if (!This) return E_OUTOFMEMORY;
|
|
|
|
This->IWICBitmapScaler_iface.lpVtbl = &BitmapScaler_Vtbl;
|
|
This->IMILBitmapScaler_iface.lpVtbl = &IMILBitmapScaler_Vtbl;
|
|
This->ref = 1;
|
|
This->source = NULL;
|
|
This->width = 0;
|
|
This->height = 0;
|
|
This->src_width = 0;
|
|
This->src_height = 0;
|
|
This->mode = 0;
|
|
This->bpp = 0;
|
|
InitializeCriticalSection(&This->lock);
|
|
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": BitmapScaler.lock");
|
|
|
|
*scaler = &This->IWICBitmapScaler_iface;
|
|
|
|
return S_OK;
|
|
}
|