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/*
ChibiOS/GFX - Copyright (C) 2012, 2013
Joel Bodenmann aka Tectu <joel@unormal.org>
This file is part of ChibiOS/GFX.
ChibiOS/GFX is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/GFX 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file include/gdisp/options.h
* @brief GDISP sub-system options header file.
*
* @addtogroup GDISP
* @{
*/
#ifndef _GDISP_OPTIONS_H
#define _GDISP_OPTIONS_H
/**
* @name GDISP Functionality to be included
* @{
*/
/**
* @brief Should all operations be clipped to the screen and colors validated.
* @details Defaults to TRUE.
* @note If this is FALSE, any operations that extend beyond the
* edge of the screen will have undefined results. Any
* out-of-range colors will produce undefined results.
* @note If defined then all low level and high level GDISP driver routines
* must check the validity of inputs and do something sensible
* if they are out of range. It doesn't have to be efficient,
* just valid.
*/
#ifndef GDISP_NEED_VALIDATION
#define GDISP_NEED_VALIDATION TRUE
#endif
/**
* @brief Are clipping functions needed.
* @details Defaults to TRUE
*/
#ifndef GDISP_NEED_CLIP
#define GDISP_NEED_CLIP TRUE
#endif
/**
* @brief Are text functions needed.
* @details Defaults to TRUE
*/
#ifndef GDISP_NEED_TEXT
#define GDISP_NEED_TEXT TRUE
#endif
/**
* @brief Are circle functions needed.
* @details Defaults to TRUE
*/
#ifndef GDISP_NEED_CIRCLE
#define GDISP_NEED_CIRCLE TRUE
#endif
/**
* @brief Are ellipse functions needed.
* @details Defaults to TRUE
*/
#ifndef GDISP_NEED_ELLIPSE
#define GDISP_NEED_ELLIPSE TRUE
#endif
/**
* @brief Are arc functions needed.
* @details Defaults to FALSE
* @note Requires the maths library to be included in the link. ie -lm
*/
#ifndef GDISP_NEED_ARC
#define GDISP_NEED_ARC FALSE
#endif
/**
* @brief Are convex polygon functions needed.
* @details Defaults to FALSE
* @note Convex polygons are those that have no internal angles. That is;
* you can draw a line from any point on the polygon to any other point
* on the polygon without it going outside the polygon.
*/
#ifndef GDISP_NEED_CONVEX_POLYGON
#define GDISP_NEED_CONVEX_POLYGON FALSE
#endif
/**
* @brief Are scrolling functions needed.
* @details Defaults to FALSE
* @note This function must be supported by the low level GDISP driver
* you have included in your project. If it isn't, defining this
* option will cause a compile error.
*/
#ifndef GDISP_NEED_SCROLL
#define GDISP_NEED_SCROLL FALSE
#endif
/**
* @brief Is the capability to read pixels back needed.
* @details Defaults to FALSE
* @note This function must be supported by the low level GDISP driver
* you have included in your project. If it isn't, defining this
* option will cause a compile error.
*/
#ifndef GDISP_NEED_PIXELREAD
#define GDISP_NEED_PIXELREAD FALSE
#endif
/**
* @brief Control some aspect of the hardware operation.
* @details Defaults to FALSE
* @note This allows control of hardware specific features such as
* screen rotation, backlight levels, contrast etc
*/
#ifndef GDISP_NEED_CONTROL
#define GDISP_NEED_CONTROL FALSE
#endif
/**
* @brief Query some aspect of the hardware operation.
* @details Defaults to FALSE
* @note This allows query of hardware specific features
*/
#ifndef GDISP_NEED_QUERY
#define GDISP_NEED_QUERY FALSE
#endif
/**
* @brief Is the messaging api interface required.
* @details Defaults to FALSE
*/
#ifndef GDISP_NEED_MSGAPI
#define GDISP_NEED_MSGAPI FALSE
#endif
/**
* @}
*
* @name GDISP Multi-Threading Options
* @{
*/
/**
* @brief Do the drawing functions need to be thread-safe.
* @details Defaults to FALSE
* @note Both GDISP_NEED_MULTITHREAD and GDISP_NEED_ASYNC make
* the gdisp API thread-safe.
* @note This is more efficient than GDISP_NEED_ASYNC as it only
* requires a context switch if something else is already
* drawing.
*/
#ifndef GDISP_NEED_MULTITHREAD
#define GDISP_NEED_MULTITHREAD FALSE
#endif
/**
* @brief Use asynchronous calls (multi-thread safe).
* @details Defaults to FALSE
* @note Both GDISP_NEED_MULTITHREAD and GDISP_NEED_ASYNC make
* the gdisp API thread-safe.
* @note Turning this on adds two context switches per transaction
* so it can significantly slow graphics drawing but it allows
* drawing operations to continue in the background.
*/
#ifndef GDISP_NEED_ASYNC
#define GDISP_NEED_ASYNC FALSE
#endif
/**
* @}
*
* @name GDISP Fonts
* @{
*/
/**
* @brief Predefined built in fonts
* @note Turning off the ones you are not using can save program size.
*/
#ifndef GDISP_INCLUDE_FONT_SMALL
#define GDISP_INCLUDE_FONT_SMALL TRUE
#endif
#ifndef GDISP_INCLUDE_FONT_LARGER
#define GDISP_INCLUDE_FONT_LARGER TRUE
#endif
#ifndef GDISP_INCLUDE_FONT_UI1
#define GDISP_INCLUDE_FONT_UI1 TRUE
#endif
#ifndef GDISP_INCLUDE_FONT_UI2
#define GDISP_INCLUDE_FONT_UI2 TRUE
#endif
#ifndef GDISP_INCLUDE_FONT_LARGENUMBERS
#define GDISP_INCLUDE_FONT_LARGENUMBERS TRUE
#endif
/**
* @}
*
* @name GDISP Optional Sizing Parameters
* @{
*/
/**
* @brief The maximum height of a font.
* @details Either 16 or 32. Defaults to 16
* @note Setting this to 32 causes the font tables to take
* twice the internal program memory. Don't do it unless
* you realy must define an unscaled font larger than 16 bits high.
*/
#ifndef GDISP_MAX_FONT_HEIGHT
#define GDISP_MAX_FONT_HEIGHT 16
#endif
/**
* @}
*
* @name GDISP Optional Low Level Driver Defines
* @{
*/
/**
* @brief Use a custom board definition even if a board definition exists.
* @details Defaults to FALSE
* @details If TRUE, add gdisp_lld_board.h to your project directory and customise it.
* @note Not all GDISP low level drivers currently use board definition files.
*/
#ifndef GDISP_USE_CUSTOM_BOARD
#define GDISP_USE_CUSTOM_BOARD FALSE
#endif
/**
* @brief Set the screen height and width.
* @note Ignored by some low level GDISP drivers, optional for others.
* @note Where these values are allowed, a default is always provided be the low level driver.
* @note The list of GDISP low level drivers that allow these to be set are...
* WIN32, SSD1289, SSD1963, TestStub
*/
/* #define GDISP_SCREEN_WIDTH nnnn */
/* #define GDISP_SCREEN_HEIGHT nnnn */
/**
* @brief Define which bus interface to use.
* @details Only required by the SSD1963 driver.
* @note This will be replaced eventually by board definition files
*/
/* #define GDISP_USE_FSMC */
/* #define GDISP_USE_GPIO */
/** @} */
#endif /* _GDISP_OPTIONS_H */
/** @} */
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