mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-27 12:11:13 +00:00
15f0bd2461
... and simplify background rendering Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5121>
88 lines
3.5 KiB
C++
88 lines
3.5 KiB
C++
/* 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.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <gst/gst.h>
|
|
#include "gstdwrite-enums.h"
|
|
#include "gstdwrite-effect.h"
|
|
|
|
DEFINE_GUID (IID_IGstDWriteTextRenderer, 0xb969dc25, 0xf7d2,
|
|
0x4cf8, 0x92, 0x0f, 0x5a, 0x27, 0xd1, 0x6d, 0x03, 0x6a);
|
|
|
|
class IGstDWriteTextRenderer : public IDWriteTextRenderer
|
|
{
|
|
public:
|
|
static STDMETHODIMP CreateInstance (IDWriteFactory * factory,
|
|
IGstDWriteTextRenderer ** renderer);
|
|
|
|
/* IUnknown */
|
|
STDMETHODIMP_ (ULONG) AddRef (void);
|
|
STDMETHODIMP_ (ULONG) Release (void);
|
|
STDMETHODIMP QueryInterface (REFIID riid,
|
|
void ** object);
|
|
|
|
/* IDWritePixelSnapping */
|
|
STDMETHODIMP IsPixelSnappingDisabled (void * context,
|
|
BOOL * is_disabled);
|
|
STDMETHODIMP GetCurrentTransform (void * context,
|
|
DWRITE_MATRIX * transform);
|
|
STDMETHODIMP GetPixelsPerDip (void * context,
|
|
FLOAT * pixels_per_dip);
|
|
|
|
/* IDWriteTextRenderer */
|
|
STDMETHODIMP DrawGlyphRun (void * context,
|
|
FLOAT origin_x,
|
|
FLOAT origin_y,
|
|
DWRITE_MEASURING_MODE mode,
|
|
DWRITE_GLYPH_RUN const *glyph_run,
|
|
DWRITE_GLYPH_RUN_DESCRIPTION const *glyph_run_desc,
|
|
IUnknown * client_effect);
|
|
STDMETHODIMP DrawUnderline (void * context,
|
|
FLOAT origin_x,
|
|
FLOAT origin_y,
|
|
DWRITE_UNDERLINE const * underline,
|
|
IUnknown * client_effect);
|
|
STDMETHODIMP DrawStrikethrough (void * context,
|
|
FLOAT origin_x,
|
|
FLOAT origin_y,
|
|
DWRITE_STRIKETHROUGH const * strikethrough,
|
|
IUnknown * client_effect);
|
|
STDMETHODIMP DrawInlineObject (void * context,
|
|
FLOAT origin_x,
|
|
FLOAT origin_y,
|
|
IDWriteInlineObject * inline_object,
|
|
BOOL is_sideways,
|
|
BOOL is_right_to_left,
|
|
IUnknown * client_effect);
|
|
|
|
/* Entry point for drawing text */
|
|
STDMETHODIMP Draw (const D2D1_POINT_2F & origin,
|
|
const RECT & client_rect,
|
|
IDWriteTextLayout * layout,
|
|
ID2D1RenderTarget * target);
|
|
|
|
private:
|
|
IGstDWriteTextRenderer (void);
|
|
virtual ~IGstDWriteTextRenderer (void);
|
|
|
|
private:
|
|
IDWriteFactory *factory_;
|
|
ULONG ref_count_ = 1;
|
|
};
|