9f16c2bf8e
* *
* update copyright headers with new FSF postal address
* COPYING.txt -> LICENSE.txt (rest of repo to be synced)
93 lines
4.1 KiB
Plaintext
93 lines
4.1 KiB
Plaintext
/*
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* GT Graphics definitions (HB_GFX_*)
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*
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* Copyright 2004 Mauricio Abre <maurifull@datafull.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file LICENSE.txt. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA (or visit https://www.gnu.org/licenses/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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/* NOTE: This file is also used by C code. */
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#ifndef _HBGFXDEF_CH_
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#define _HBGFXDEF_CH_
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/*
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* NOTE: ACQUIRE / RELEASE screen pair must work same way DispBegin()/DispEnd() pair does
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* (that is, with an internal counter), as lots of function may want to 'acquire/release' it.
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* However, a GT must properly manage its gfx output if the user didn't requested to acquire the
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* screen, so this is under user choice.
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* (the user just needs to know that it is not the same to aquire the screen, draw 100 lines, then
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* release screen, than simply drawing 100 lines -as the GT will be acquiring/releasing the screen
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* 100 times, which will slow down things a lot-) [Mauricio]
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*/
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/* Misc, internals */
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#define HB_GFX_ACQUIRESCREEN 1 /* Some GTs may require that you 'acquire' the screen before doing gfx things */
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#define HB_GFX_RELEASESCREEN 2 /* Release a previously 'acquired' screen */
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#define HB_GFX_MAKECOLOR 3 /* Calculate gfx color number based on RGBA values */
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/* Functions that affect drawing area */
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#define HB_GFX_CLIPTOP 10
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#define HB_GFX_CLIPLEFT 11
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#define HB_GFX_CLIPBOTTOM 12
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#define HB_GFX_CLIPRIGHT 13
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#define HB_GFX_SETCLIP 14 /* NOTE: set to 0, 0, 0, 0 to disable ;) */
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/* Functions that affect drawing mode */
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#define HB_GFX_DRAWINGMODE 20
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/* Drawing primitives */
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#define HB_GFX_GETPIXEL 50
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#define HB_GFX_PUTPIXEL 51
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#define HB_GFX_LINE 52
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#define HB_GFX_RECT 53
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#define HB_GFX_FILLEDRECT 54
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#define HB_GFX_CIRCLE 55
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#define HB_GFX_FILLEDCIRCLE 56
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#define HB_GFX_ELLIPSE 57
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#define HB_GFX_FILLEDELLIPSE 58
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#define HB_GFX_FLOODFILL 59
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/* Drawing mode constants */
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#define HB_GFX_MODE_SOLID 1 /* Solid mode, no translucency, no patterned primitives */
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#define HB_GFX_MODE_XOR 2 /* XOR with current screen contents */
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#define HB_GFX_MODE_ALPHA 3 /* Use alpha for transluced effect (SLOW) */
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/* TODO: add patterned mode drawings */
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#endif /* _HBGFXDEF_CH_ */
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