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/* GStreamer
* Copyright (C) 2023 Seungha Yang <seungha@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstdwrite-effect.h"
/* *INDENT-OFF* */
STDMETHODIMP
IGstDWriteTextEffect::CreateInstance (IGstDWriteTextEffect ** effect)
{
IGstDWriteTextEffect *self = new IGstDWriteTextEffect ();
if (!self)
return E_OUTOFMEMORY;
*effect = self;
return S_OK;
}
STDMETHODIMP_ (BOOL)
IGstDWriteTextEffect::IsEnabledColor (const D2D1_COLOR_F & color)
{
if (color.r != 0 || color.g != 0 || color.b != 0 || color.a != 0)
return TRUE;
return FALSE;
}
STDMETHODIMP_ (ULONG)
IGstDWriteTextEffect::AddRef (void)
{
return InterlockedIncrement (&ref_count_);
}
STDMETHODIMP_ (ULONG)
IGstDWriteTextEffect::Release (void)
{
ULONG ref_count;
ref_count = InterlockedDecrement (&ref_count_);
if (ref_count == 0)
delete this;
return ref_count;
}
STDMETHODIMP
IGstDWriteTextEffect::QueryInterface (REFIID riid, void ** object)
{
if (riid == IID_IUnknown) {
*object = static_cast<IUnknown *>
(static_cast<IGstDWriteTextEffect *> (this));
} else if (riid == IID_IGstDWriteTextEffect) {
*object = this;
} else {
*object = nullptr;
return E_NOINTERFACE;
}
AddRef ();
return S_OK;
}
STDMETHODIMP
IGstDWriteTextEffect::Clone (IGstDWriteTextEffect ** effect)
{
IGstDWriteTextEffect *copy = new IGstDWriteTextEffect ();
if (!copy)
return E_OUTOFMEMORY;
for (UINT i = 0; i < GST_DWRITE_BRUSH_LAST; i++)
copy->brush_[i] = this->brush_[i];
copy->enable_color_font_ = enable_color_font_;
*effect = copy;
return S_OK;
}
STDMETHODIMP
IGstDWriteTextEffect::GetBrushColor (GST_DWRITE_BRUSH_TARGET target,
D2D1_COLOR_F * color, BOOL * enabled)
{
if (color)
*color = brush_[target];
if (enabled) {
if (IGstDWriteTextEffect::IsEnabledColor (brush_[target]))
*enabled = TRUE;
else
*enabled = FALSE;
}
return S_OK;
}
STDMETHODIMP
IGstDWriteTextEffect::SetBrushColor (GST_DWRITE_BRUSH_TARGET target,
const D2D1_COLOR_F * color)
{
if (!color)
brush_[target] = D2D1::ColorF (D2D1::ColorF::Black, 0);
else
brush_[target] = *color;
return S_OK;
}
STDMETHODIMP
IGstDWriteTextEffect::SetEnableColorFont (BOOL enable)
{
enable_color_font_ = enable;
return S_OK;
}
STDMETHODIMP
IGstDWriteTextEffect::GetEnableColorFont (BOOL * enable)
{
if (!enable)
return E_INVALIDARG;
*enable = enable_color_font_ ;
return S_OK;
}
IGstDWriteTextEffect::IGstDWriteTextEffect (void)
{
for (UINT32 i = 0; i < GST_DWRITE_BRUSH_LAST; i++)
brush_[i] = D2D1::ColorF (D2D1::ColorF::Black);
/* Disable custom shadow effects by default */
brush_[GST_DWRITE_BRUSH_SHADOW] = D2D1::ColorF (D2D1::ColorF::Black, 0);
}
IGstDWriteTextEffect::~IGstDWriteTextEffect (void)
{
}
/* *INDENT-ON* */
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