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110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
//+--------------------------------------------------------------------------
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// Abstract:
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// Public API definitions for DWrite, D2D and DImage.
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//
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//----------------------------------------------------------------------------
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#pragma once
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#ifndef DCOMMON_H_INCLUDED
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#define DCOMMON_H_INCLUDED
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#include <dxgiformat.h>
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#ifndef DX_DECLARE_INTERFACE
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#define DX_DECLARE_INTERFACE(x) DECLSPEC_UUID(x) DECLSPEC_NOVTABLE
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#endif
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#ifndef CHECKMETHOD
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#define CHECKMETHOD(method) virtual DECLSPEC_NOTHROW _Must_inspect_result_ HRESULT STDMETHODCALLTYPE method
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#endif
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//
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// Forward declarations
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//
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interface IDXGISurface;
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//+----------------------------------------------------------------------------
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//
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// Enum:
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// DWRITE_MEASURING_MODE
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//
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// Synopsis:
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// The measuring method used for text layout.
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//
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//-------------------------------------------------------------------------------
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typedef enum DWRITE_MEASURING_MODE
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{
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//
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// Text is measured using glyph ideal metrics whose values are independent to the current display resolution.
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//
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DWRITE_MEASURING_MODE_NATURAL,
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//
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// Text is measured using glyph display compatible metrics whose values tuned for the current display resolution.
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//
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DWRITE_MEASURING_MODE_GDI_CLASSIC,
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//
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// Text is measured using the same glyph display metrics as text measured by GDI using a font
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// created with CLEARTYPE_NATURAL_QUALITY.
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//
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DWRITE_MEASURING_MODE_GDI_NATURAL
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} DWRITE_MEASURING_MODE;
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//+-----------------------------------------------------------------------------
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//
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// Enum:
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// D2D1_ALPHA_MODE
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//
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// Synopsis:
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// Qualifies how alpha is to be treated in a bitmap or render target containing
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// alpha.
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//
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//------------------------------------------------------------------------------
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typedef enum D2D1_ALPHA_MODE
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{
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//
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// Alpha mode should be determined implicitly. Some target surfaces do not supply
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// or imply this information in which case alpha must be specified.
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//
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D2D1_ALPHA_MODE_UNKNOWN = 0,
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//
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// Treat the alpha as premultipled.
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//
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D2D1_ALPHA_MODE_PREMULTIPLIED = 1,
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//
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// Opacity is in the 'A' component only.
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//
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D2D1_ALPHA_MODE_STRAIGHT = 2,
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//
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// Ignore any alpha channel information.
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//
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D2D1_ALPHA_MODE_IGNORE = 3,
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D2D1_ALPHA_MODE_FORCE_DWORD = 0xffffffff
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} D2D1_ALPHA_MODE;
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//+-----------------------------------------------------------------------------
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//
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// Struct:
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// D2D1_PIXEL_FORMAT
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//
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//------------------------------------------------------------------------------
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typedef struct D2D1_PIXEL_FORMAT
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{
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DXGI_FORMAT format;
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D2D1_ALPHA_MODE alphaMode;
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} D2D1_PIXEL_FORMAT;
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#endif /* DCOMMON_H_INCLUDED */
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