New GDISP driver

Based on GLCD, GDISP provides support for multiple architectures in a
ChibiOS driver format. A compatability glcd.h has been provided to
assist those wanting to migrate to the new structure.
remotes/origin_old/ugfx_release_2.6
Andrew Hannam 2012-07-31 00:25:07 +10:00
parent a97595f289
commit d1bfbf2b33
8 changed files with 3095 additions and 18 deletions

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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT 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/RT 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/>.
---
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes ChibiOS/RT, without being obliged to provide
the source code for any proprietary components. See the file exception.txt
for full details of how and when the exception can be applied.
*/
/*
Concepts and parts of this file have been contributed by:
Joel Bodenmann aka Tectu -> Maintainer
Andrew Hannam aka inmarket -> Framework
Badger -> console implementation and FSMC
Abhishek -> font rendering
Ben William -> fastMath and lcdDrawEllipse()
Dongxu Li aka dxli -> lcdDrawEllipse() filled option
*/
/**
* @file gdisp.h
* @brief GDISP Graphic Driver macros and structures.
*
* @addtogroup GDISP
* @{
*/
#ifndef _GDISP_H
#define _GDISP_H
#if HAL_USE_GDISP || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/**
* @brief Some basic colors
*/
#define White HTML2COLOR(0xFFFFFF)
#define Black HTML2COLOR(0x000000)
#define Gray HTML2COLOR(0x808080)
#define Grey Gray
#define Blue HTML2COLOR(0x0000FF)
#define Red HTML2COLOR(0xFF0000)
#define Fuchsia HTML2COLOR(0xFF00FF)
#define Magenta Fuchsia
#define Green HTML2COLOR(0x008000)
#define Yellow HTML2COLOR(0xFFFF00)
#define Aqua HTML2COLOR(0x00FFFF)
#define Cyan Aqua
#define Lime HTML2COLOR(0x00FF00)
#define Maroon HTML2COLOR(0x800000)
#define Navy HTML2COLOR(0x000080)
#define Olive HTML2COLOR(0x808000)
#define Purple HTML2COLOR(0x800080)
#define Silver HTML2COLOR(0xC0C0C0)
#define Teal HTML2COLOR(0x008080)
#define Orange HTML2COLOR(0xFFA500)
#define Pink HTML2COLOR(0xFFC0CB)
#define SkyBlue HTML2COLOR(0x87CEEB)
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @name GDISP more complex functionality to be compiled
* @{
*/
/**
* @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 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 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 text functions needed.
* @details Defaults to TRUE
*/
#ifndef GDISP_NEED_TEXT
#define GDISP_NEED_TEXT TRUE
#endif
/**
* @brief Is scrolling needed.
* @details Defaults to FALSE
*/
#ifndef GDISP_NEED_SCROLL
#define GDISP_NEED_SCROLL FALSE
#endif
/**
* @brief Is the capability to read pixels back needed.
* @details Defaults to FALSE
*/
#ifndef GDISP_NEED_PIXELREAD
#define GDISP_NEED_PIXELREAD FALSE
#endif
/**
* @brief Do the drawing functions need to be thread-safe.
* @details Defaults to FALSE
* @note Turning this on adds two context switches per transaction
* so it can significantly slow graphics drawing.
*/
#ifndef GDISP_NEED_MULTITHREAD
#define GDISP_NEED_MULTITHREAD FALSE
#endif
/** @} */
/* Include the low level driver information */
#include "gdisp_lld.h"
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
#if GDISP_NEED_SCROLL && !GDISP_HARDWARE_SCROLL
#error "GDISP: Hardware scrolling is wanted but not supported."
#endif
#if GDISP_NEED_PIXELREAD && !GDISP_HARDWARE_PIXELREAD
#error "GDISP: Pixel read-back is wanted but not supported."
#endif
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/* Define the basic Macro's for the various pixel formats */
#if defined(GDISP_PIXELFORMAT_RGB565) || defined(__DOXYGEN__)
/**
* @brief The color of a pixel.
*/
typedef uint16_t color_t;
/**
* @brief Convert a number (of any type) to a color_t.
* @details Masks any invalid bits in the color
*/
#define COLOR(c) ((color_t)(c))
/**
* @brief Does the color_t type contain invalid bits that need masking.
*/
#define MASKCOLOR FALSE
/**
* @brief Convert red, green, blue (each 0 to 255) into a color value.
*/
#define RGB2COLOR(r,g,b) ((color_t)((((r) & 0xF8)<<8) | (((g) & 0xFC)<<3) | (((b) & 0xF8)>>3)))
/**
* @brief Convert a 6 digit HTML code (hex) into a color value.
*/
#define HTML2COLOR(h) ((color_t)((((h) & 0xF80000)>>8) | (((h) & 0x00FC00)>>5) | (((h) & 0x0000F8)>>3)))
/**
* @brief Extract the red component (0 to 255) of a color value.
*/
#define RED_OF(c) (((c) & 0xF800)>>8)
/**
* @brief Extract the green component (0 to 255) of a color value.
*/
#define GREEN_OF(c) (((c)&0x007E)>>3)
/**
* @brief Extract the blue component (0 to 255) of a color value.
*/
#define BLUE_OF(c) (((c)&0x001F)<<3)
#elif defined(GDISP_PIXELFORMAT_RGB888)
typedef uint32_t color_t;
#define COLOR(c) ((color_t)(((c) & 0xFFFFFF))
#define MASKCOLOR TRUE
#define RGB2COLOR(r,g,b) ((color_t)((((r) & 0xFF)<<16) | (((g) & 0xFF) << 8) | ((b) & 0xFF)))
#define HTML2COLOR(h) ((color_t)(h))
#define RED_OF(c) (((c) & 0xFF0000)>>16)
#define GREEN_OF(c) (((c)&0x00FF00)>>8)
#define BLUE_OF(c) ((c)&0x0000FF)
#elif defined(GDISP_PIXELFORMAT_RGB444)
typedef uint16_t color_t;
#define COLOR(c) ((color_t)(((c) & 0x0FFF))
#define MASKCOLOR TRUE
#define RGB2COLOR(r,g,b) ((color_t)((((r) & 0xF0)<<4) | ((g) & 0xF0) | (((b) & 0xF0)>>4))
#define HTML2COLOR(h) ((color_t)((((h) & 0xF00000)>>12) | (((h) & 0x00F000)>>8) | (((h) & 0x0000F0)>>4))
#define RED_OF(c) (((c) & 0x0F00)>>4)
#define GREEN_OF(c) ((c)&0x00F0)
#define BLUE_OF(c) (((c)&0x000F)<<4)
#elif defined(GDISP_PIXELFORMAT_RGB332)
typedef uint8_t color_t;
#define COLOR(c) ((color_t)(c))
#define MASKCOLOR FALSE
#define RGB2COLOR(r,g,b) ((color_t)(((r) & 0xE0) | (((g) & 0xE0)>>3) | (((b) & 0xC0)>>6))
#define HTML2COLOR(h) ((color_t)((((h) & 0xE00000)>>16) | (((h) & 0x00E000)>>11) | (((h) & 0x0000C0)>>6))
#define RED_OF(c) ((c) & 0xE0)
#define GREEN_OF(c) (((c)&0x1C)<<3)
#define BLUE_OF(c) (((c)&0x03)<<6)
#elif defined(GDISP_PIXELFORMAT_RGB666)
typedef uint32_t color_t;
#define COLOR(c) ((color_t)(((c) & 0x03FFFF))
#define MASKCOLOR TRUE
#define RGB2COLOR(r,g,b) ((color_t)((((r) & 0xFC)<<10) | (((g) & 0xFC)<<4) | (((b) & 0xFC)>>2)))
#define HTML2COLOR(h) ((color_t)((((h) & 0xFC0000)>>6) | (((h) & 0x00FC00)>>4) | (((h) & 0x0000FC)>>2)))
#define RED_OF(c) (((c) & 0x03F000)>>12)
#define GREEN_OF(c) (((c)&0x00FC00)>>8)
#define BLUE_OF(c) (((c)&0x00003F)<<2)
#elif !defined(GDISP_PIXELFORMAT_CUSTOM)
#error "GDISP: No supported pixel format has been specified."
#endif
/* Verify information for packed pixels and define a non-packed pixel macro */
#if !GDISP_PACKED_PIXELS
#define gdispPackPixels(buf,cx,x,y,c) { ((color_t *)(buf))[(y)*(cx)+(x)] = (c); }
#elif !GDISP_HARDWARE_BITFILLS
#error "GDISP: packed pixel formats are only supported for hardware accelerated drivers."
#elif !defined(GDISP_PIXELFORMAT_RGB888) && !defined(GDISP_PIXELFORMAT_RGB444) && !defined(GDISP_PIXELFORMAT_RGB666) && !defined(GDISP_PIXELFORMAT_CUSTOM)
#error "GDISP: A packed pixel format has been specified for an unsupported pixel format."
#endif
/**
* @brief The type for a coordinate or length on the screen.
*/
typedef uint16_t coord_t;
/**
* @brief The type of a pixel.
*/
typedef color_t pixel_t;
/**
* @brief The type of a font.
*/
typedef const struct font *font_t;
/**
* @brief Type of a structure representing a GDISP driver.
*/
typedef struct GDISPDriver GDISPDriver;
/**
* @brief Type for the screen orientation.
*/
typedef enum orientation {portrait, landscape, portraitInv, landscapeInv} gdisp_orientation_t;
/**
* @brief Type for the available power modes for the screen.
*/
typedef enum powermode {powerOff, powerSleep, powerOn} gdisp_powermode_t;
/**
* @brief Type for the text justification.
*/
typedef enum justify {justifyLeft, justifyCenter, justifyRight} justify_t;
/**
* @brief Type for the font metric.
*/
typedef enum fontmetric {fontHeight, fontDescendersHeight, fontLineSpacing, fontCharPadding, fontMinWidth, fontMaxWidth} fontmetric_t;
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#if GDISP_NEED_TEXT || defined(__DOXYGEN__)
/**
* @brief Predefined fonts.
*/
extern const struct font fontSmall;
extern const struct font fontLarger;
extern const struct font fontUI1;
extern const struct font fontUI2;
extern const struct font fontLargeNumbers;
#endif
#ifdef __cplusplus
extern "C" {
#endif
#if GDISP_NEED_MULTITHREAD
/* Base Functions */
void gdispInit(GDISPDriver *gdisp);
void gdispSetPowerMode(gdisp_powermode_t powerMode);
void gdispSetOrientation(gdisp_orientation_t newOrientation);
/* Drawing Functions */
void gdispClear(color_t color);
void gdispDrawPixel(coord_t x, coord_t y, color_t color);
void gdispDrawLine(coord_t x0, coord_t y0, coord_t x1, coord_t y1, color_t color);
void gdispDrawBox(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color);
void gdispFillArea(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color);
void gdispBlitArea(coord_t x, coord_t y, coord_t cx, coord_t cy, pixel_t *buffer);
/* Circle Functions */
#if GDISP_NEED_CIRCLE
void gdispDrawCircle(coord_t x, coord_t y, coord_t radius, color_t color);
void gdispFillCircle(coord_t x, coord_t y, coord_t radius, color_t color);
#endif
/* Ellipse Functions */
#if GDISP_NEED_ELLIPSE
void gdispDrawEllipse(coord_t x, coord_t y, coord_t a, coord_t b, color_t color);
void gdispFillEllipse(coord_t x, coord_t y, coord_t a, coord_t b, color_t color);
#endif
/* Basic Text Rendering Functions */
#if GDISP_NEED_TEXT
void gdispDrawChar(coord_t x, coord_t y, char c, font_t font, color_t color);
void gdispFillChar(coord_t x, coord_t y, char c, font_t font, color_t color, color_t bgcolor);
#endif
/* Read a pixel Function */
#if GDISP_NEED_PIXELREAD
color_t gdispGetPixelColor(coord_t x, coord_t y);
#endif
/* Scrolling Function - clears the area scrolled out */
#if GDISP_NEED_SCROLL
void gdispVerticalScroll(coord_t x, coord_t y, coord_t cx, coord_t cy, int lines, color_t bgcolor);
#endif
#else
/* The same as above but use the low level driver directly if no multi-thread support is needed */
#define gdispInit(gdisp) gdisp_lld_init()
#define gdispSetPowerMode(powerMode) gdisp_lld_setpowermode(powerMode)
#define gdispSetOrientation(newOrientation) gdisp_lld_setorientation(newOrientation)
#define gdispClear(color) gdisp_lld_clear(color)
#define gdispDrawPixel(x, y, color) gdisp_lld_drawpixel(x, y, color)
#define gdispDrawLine(x0, y0, x1, y1, color) gdisp_lld_drawline(x0, y0, x1, y1, color)
#define gdispDrawBox(x, y, cx, cy, color) gdisp_lld_drawbox(x, y, cx, cy, color)
#define gdispFillArea(x, y, cx, cy, color) gdisp_lld_fillarea(x, y, cx, cy, color)
#define gdispBlitArea(x, y, cx, cy, buffer) gdisp_lld_blitarea(x, y, cx, cy, buffer)
#define gdispDrawCircle(x, y, radius, color) gdisp_lld_drawcircle(x, y, radius, color)
#define gdispFillCircle(x, y, radius, color) gdisp_lld_fillcircle(x, y, radius, color)
#define gdispDrawEllipse(x, y, a, b, color) gdisp_lld_drawellipse(x, y, a, b, color)
#define gdispFillEllipse(x, y, a, b, color) gdisp_lld_fillellipse(x, y, a, b, color)
#define gdispDrawChar(x, y, c, font, color) gdisp_lld_drawchar(x, y, c, font, color)
#define gdispFillChar(x, y, c, font, color, bgcolor) gdisp_lld_fillchar(x, y, c, font, color, bgcolor)
#define gdispGetPixelColor(x, y) gdisp_lld_getpixelcolor(x, y)
#define gdispVerticalScroll(x, y, cx, cy, lines, bgcolor) gdisp_lld_verticalscroll(x, y, cx, cy, lines, bgcolor)
#endif
/* Extra Text Functions */
#if GDISP_NEED_TEXT
void gdispDrawString(coord_t x, coord_t y, const char *str, font_t font, color_t color);
void gdispFillString(coord_t x, coord_t y, const char *str, font_t font, color_t color, color_t bgcolor);
void gdispFillStringBox(coord_t x, coord_t y, coord_t cx, coord_t cy, const char* str, font_t font, color_t color, color_t bgColor, justify_t justify);
coord_t gdispGetFontMetric(font_t font, fontmetric_t metric);
coord_t gdispGetCharWidth(char c, font_t font);
coord_t gdispGetStringWidth(const char* str, font_t font);
#endif
/* Support routine for packed pixel formats */
#ifndef gdispPackPixels
void gdispPackPixels(pixel_t *buf, coord_t cx, coord_t x, coord_t y, color_t color);
#endif
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_GDISP */
#endif /* _GDISP_H */
/** @} */

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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT 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/RT 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/>.
---
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes ChibiOS/RT, without being obliged to provide
the source code for any proprietary components. See the file exception.txt
for full details of how and when the exception can be applied.
*/
/*
Concepts and parts of this file have been contributed by:
Joel Bodenmann aka Tectu -> Maintainer
Andrew Hannam aka inmarket -> Framework
Badger -> console implementation and FSMC
Abhishek -> font rendering
Ben William -> fastMath and lcdDrawEllipse()
Dongxu Li aka dxli -> lcdDrawEllipse() filled option
*/
/*
This file is an emulation of the GLCD interface using the
new GDISP interface. It is probably not a perfect replica,
some code changes may be necessary.
Note it does not replicate the GLCD low level driver, just
the high level interface.
*/
#ifndef GLCD_H
#define GLCD_H
#include "ch.h"
#include "hal.h"
#include "gdisp.h"
#define PORTRAIT (lcdGetOrientation() == portrait || lcdGetOrientation() == portraitInv)
#define LANDSCAPE (lcdGetOrientation() == landscape || lcdGetOrientation() == landscapeInv)
#define RGB565CONVERT(r, g, b) RGB2COLOR(r,g,b)
enum orientation {portrait, landscape, portraitInv, landscapeInv};
enum filled {frame, filled};
enum transparency {solid, transparent};
enum powermode {powerOff, powerOn, sleepOn, sleepOff};
#define sleepOn powerSleep
#define sleepOff powerOn
#define lcdGetFontHeight(font) gdispGetFontMetric(font, fontHeight)
#define GLCDDriver GDISPDriver
#define GLCDD1 GDISP1
enum glcd_result { GLCD_DONE,
GLCD_FAILED,
GLCD_PROGRESS,
};
typedef enum glcd_result glcd_result_t;
/* Core functions */
#define lcdInit(dvr) gdispInit(dvr)
#define lcdClear(color) (gdispClear(color), GLCD_DONE)
#define lcdSetOrientation(newO) (gdispSetOrientation(newO), (GDISP1.Orientation == (newO) ? GLCD_DONE : GLCD_FAILED))
#define lcdFillArea(x0,y0,x1,y1,c) (gdispFillArea((x0),(y0),(x1)-(x0)+1,(y1)-(y0)+1,(c)), GLCD_DONE)
#define lcdWriteArea(x0,y0,x1,y1,b,n) (gdispBlitArea((x0),(y0),(x1)-(x0)+1,(y1)-(y0)+1,(b)), GLCD_DONE)
#define lcdSetPowerMode(pm) (gdispSetPowerMode(pm), (GDISP1.Powermode == (pm) ? GLCD_DONE : GLCD_FAILED))
/* Drawing functions */
#define lcdDrawPixel(x,y,c) (gdispDrawPixel((x),(y),(c)), GLCD_DONE)
#define lcdDrawLine(x0,y0,x1,y1,c) gdispDrawLine((x0),(y0),(x1),(y1),(c))
#define lcdDrawRect(x0,y0,x1,y1,f,c) {if(f) gdispFillArea((x0),(y0),(x1)-(x0)+1,(y1)-(y0)+1,(c)); else gdispDrawBox((x0),(y0),(x1)-(x0)+1,(y1)-(y0)+1,(c));}
#define lcdDrawRectString(x0,y0,x1,y1,s,f,c,b) gdispFillStringBox((x0),(y0),(x1)-(x0)+1,(y1)-(y0)+1,(s),(f),(c),(b),justifyLeft)
#define lcdDrawCircle(x,y,r,f,c) {if(f) gdispFillCircle((x),(y),(r),(c)); else gdispDrawCircle((x),(y),(r),(c));}
#define lcdDrawEllipse(x,y,a,b,f,c) {if(f) gdispFillEllipse((x),(y),(a),(b),(c)); else gdispDrawEllipse((x),(y),(a),(b),(c));}
/* Text Rendering Functions */
#define lcdDrawChar(x,y,h,f,c,b,t) ({if(t) gdispDrawChar((x),(y),(h),(f),(c)); else gdispFillChar((x),(y),(h),(f),(c),(b));}, (gdispGetCharWidth((h),(f))+(f)->charPadding))
#define lcdDrawString(x,y,s,f,c,b,t) ({if(t) gdispDrawString((x),(y),(s),(f),(c)); else gdispFillString((x),(y),(s),(f),(c),(b));}, (gdispGetStringWidth((s),(f))+(f)->charPadding))
/* Character measuring functions */
#define lcdMeasureChar(h,f) (gdispGetCharWidth((h),(f))+(f)->charPadding)
#define lcdMeasureString(s,f) (gdispGetStringWidth((s),(f))+(f)->charPadding)
/* Size and orientation related */
#define lcdGetHeight() (GDISP1.Height)
#define lcdGetWidth() (GDISP1.Width)
#define lcdGetOrientation() (GDISP1.Orientation)
/* BGR->RGB and pixel readback */
#define lcdBGR2RGB(c) RGB2COLOR(BLUE_OF(c),GREEN_OF(c),RED_OF(c))
#define lcdGetPixelColor(x,y) gdispGetPixelColor((x),(y))
/* Scrolling function */
#define lcdVerticalScroll(x0,y0,x1,y1,l) gdispVerticalScroll((x0),(y0),(x1)-(x0)+1,(y1)-(y0)+1,l,Black)
#endif

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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT 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/RT 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/>.
---
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes ChibiOS/RT, without being obliged to provide
the source code for any proprietary components. See the file exception.txt
for full details of how and when the exception can be applied.
*/
/*
Concepts and parts of this file have been contributed by:
Joel Bodenmann aka Tectu -> Maintainer
Andrew Hannam aka inmarket -> framework
Badger -> console implementation and FSMC
Abhishek -> font rendering
Ben William -> fastMath and lcdDrawEllipse()
Dongxu Li aka dxli -> lcdDrawEllipse() filled option
*/
/**
* @file gdisp.c
* @brief GDISP Driver code.
*
* @addtogroup GDISP
* @{
*/
#include "ch.h"
#include "hal.h"
#if HAL_USE_GDISP || defined(__DOXYGEN__)
#if GDISP_NEED_MULTITHREAD
#error "GDISP: Multithread support not complete"
#define MUTEX_ENTER /* Not defined yet */
#define MUTEX_EXIT /* Not defined yet */
#endif
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
#if GDISP_NEED_TEXT || defined(__DOXYGEN__)
/**
* @brief The size of a font column.
* @note If you font heights > 16 you would need to redefine this
* as a uint32_t instead of a uint16_t. Fonts would then take
* twice the internal program memory.
*/
typedef uint16_t fontcolumn_t
/**
* @brief Internal font structure.
* @note This structure is followed by:
* An array of column data offsets (relative to the font structure)
* An array of character widths (uint8_t)
* Each characters array of column data (fontcolumn_t)
*/
typedef struct font {
uint8_t height;
uint8_t charPadding;
uint8_t lineSpacing;
uint8_t descenderHeight;
uint8_t minWidth;
uint8_t maxWidth;
char minChar;
char maxChar;
uint16_t widthTableOffset;
uint16_t offsetTableOffset;
};
/**
* @brief Macro's to get to the complex parts of the font structure.
*/
#define _getFontPart(f,o,t) ((t)((const uint8_t *)(f)+(o)))
#define _getCharWidth(f,c) (((c) < (f)->minChar || (c) > (f)->maxChar) ? 0 : _getFontPart((f), (f)->widthTableOffset, const uint8_t *)[c - (f)->minChar])
#define _getCharOffset(f,c) (_getFontPart((f), (f)->offsetTableOffset, const uint16_t *)[c - (f)->minChar])
#define _getCharData(f,c) _getFontPart((f), _getCharOffset(c, (f)), const fontcolumn_t *)
#endif
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
#if GDISP_NEED_TEXT || defined(__DOXYGEN__)
#include "gdisp_inc_fonts.c"
#endif
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/* Include the software emulation routines */
#include "gdisp_inc_emulation.c"
#if GDISP_NEED_MULTITHREAD || defined(__DOXYGEN__)
/**
* @brief GDISP Driver initialization.
* @note This function is NOT currently implicitly invoked by @p halInit().
* It must be called manually.
*
* @init
*/
void gdispInit(GDISPDriver *gdisp) {
/* No mutex required as nothing should happen until the init is complete */
gdisp_lld_init();
/* ToDo - Initialise Mutex */
}
#endif
#if GDISP_NEED_MULTITHREAD || defined(__DOXYGEN__)
/**
* @brief Set the power mode for the display.
* @pre The GDISP unit must have been initialised using @p gdispInit().
* @note Depending on the hardware implementation this function may not
* support powerSleep. If not powerSleep is treated the same as powerOn.
* (sleep allows drawing to the display without the display updating).
*
* @param[in] powerMode The power mode to use
*
* @api
*/
void gdispSetPowerMode(gdisp_powermode_t powerMode) {
MUTEX_ENTER
gdisp_lld_setpowermode(powerMode);
MUTEX_EXIT
}
#endif
#if GDISP_NEED_MULTITHREAD || defined(__DOXYGEN__)
/**
* @brief Set the orientation of the display.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
* @note Depending on the hardware implementation this function may clear
* the display when changing its orientation.
*
* @param[in] newOrientation The new orientation to use
*
* @api
*/
void gdispSetOrientation(gdisp_orientation_t newOrientation) {
MUTEX_ENTER
gdisp_lld_setorientation(newOrientation);
MUTEX_EXIT
}
#endif
#if GDISP_NEED_MULTITHREAD || defined(__DOXYGEN__)
/**
* @brief Clear the display to the specified color.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
*
* @param[in] color The color to use when clearing the screen
*
* @api
*/
void gdispClear(color_t color) {
MUTEX_ENTER
gdisp_lld_clear(color);
MUTEX_EXIT
}
#endif
#if GDISP_NEED_MULTITHREAD || defined(__DOXYGEN__)
/**
* @brief Set a pixel in the specified color.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
*
* @param[in] x,y The position to set the pixel.
* @param[in] color The color to use
*
* @api
*/
void gdispDrawPixel(coord_t x, coord_t y, color_t color) {
MUTEX_ENTER
gdisp_lld_drawpixel(x, y, color);
MUTEX_EXIT
}
#endif
#if GDISP_NEED_MULTITHREAD || defined(__DOXYGEN__)
/**
* @brief Draw a line.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
*
* @param[in] x0,y0 The start position
* @param[in] x1,y1 The end position
* @param[in] color The color to use
*
* @api
*/
void gdispDrawLine(coord_t x0, coord_t y0, coord_t x1, coord_t y1, color_t color) {
MUTEX_ENTER
gdisp_lld_drawline(x0, y0, x1, y1, color);
MUTEX_EXIT
}
#endif
#if GDISP_NEED_MULTITHREAD || defined(__DOXYGEN__)
/**
* @brief Draw a rectangular box.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
*
* @param[in] x0,y0 The start position
* @param[in] cx,cy The size of the box (outside dimensions)
* @param[in] color The color to use
* @param[in] filled Should the box should be filled
*
* @api
*/
void gdispDrawBox(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
MUTEX_ENTER
gdisp_lld_drawbox(x, y, cx, cy, color);
MUTEX_EXIT
}
#endif
#if GDISP_NEED_MULTITHREAD || defined(__DOXYGEN__)
/**
* @brief Fill an area with a color.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
*
* @param[in] x0,y0 The start position
* @param[in] cx,cy The size of the box (outside dimensions)
* @param[in] color The color to use
*
* @api
*/
void gdispFillArea(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
MUTEX_ENTER
gdisp_lld_fillarea(x, y, cx, cy, color);
MUTEX_EXIT
}
#endif
#if GDISP_NEED_MULTITHREAD || defined(__DOXYGEN__)
/**
* @brief Fill an area using the supplied bitmap.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
* @details The bitmap is in the pixel format specified by the low level driver
* @note If a packed pixel format is used and the width doesn't
* match a whole number of bytes, the next line will start on a
* non-byte boundary (no end-of-line padding).
*
* @param[in] x0,y0 The start position
* @param[in] cx,cy The size of the filled area
* @param[in] buffer The bitmap in the driver's pixel format.
*
* @api
*/
void gdispBlitArea(coord_t x, coord_t y, coord_t cx, coord_t cy, pixel_t *buffer) {
MUTEX_ENTER
gdisp_lld_blitarea(x, y, cx, cy, buffer);
MUTEX_EXIT
}
#endif
#if (GDISP_NEED_CIRCLE && GDISP_NEED_MULTITHREAD) || defined(__DOXYGEN__)
/**
* @brief Draw a circle.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
*
* @param[in] x0,y0 The center of the circle
* @param[in] radius The radius of the circle
* @param[in] color The color to use
*
* @api
*/
void gdispDrawCircle(coord_t x, coord_t y, coord_t radius, color_t color) {
MUTEX_ENTER
gdisp_lld_drawcircle(x, y, radius, color);
MUTEX_EXIT
}
#endif
#if (GDISP_NEED_CIRCLE && GDISP_NEED_MULTITHREAD) || defined(__DOXYGEN__)
/**
* @brief Draw a filled circle.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
*
* @param[in] x0,y0 The center of the circle
* @param[in] radius The radius of the circle
* @param[in] color The color to use
*
* @api
*/
void gdispFillCircle(coord_t x, coord_t y, coord_t radius, color_t color) {
MUTEX_ENTER
gdisp_lld_fillcircle(x, y, radius, color);
MUTEX_EXIT
}
#endif
#if (GDISP_NEED_ELLIPSE && GDISP_NEED_MULTITHREAD) || defined(__DOXYGEN__)
/**
* @brief Draw an ellipse.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
*
* @param[in] x0,y0 The center of the ellipse
* @param[in] a,b The dimensions of the ellipse
* @param[in] color The color to use
*
* @api
*/
void gdispDrawEllipse(coord_t x, coord_t y, coord_t a, coord_t b, color_t color) {
MUTEX_ENTER
gdisp_lld_drawellipse(x, y, a, b, color);
MUTEX_EXIT
}
#endif
#if (GDISP_NEED_ELLIPSE && GDISP_NEED_MULTITHREAD) || defined(__DOXYGEN__)
/**
* @brief Draw a filled ellipse.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
*
* @param[in] x0,y0 The center of the ellipse
* @param[in] a,b The dimensions of the ellipse
* @param[in] color The color to use
*
* @api
*/
void gdispFillEllipse(coord_t x, coord_t y, coord_t a, coord_t b, color_t color) {
MUTEX_ENTER
gdisp_lld_fillellipse(x, y, a, b, color);
MUTEX_EXIT
}
#endif
#if (GDISP_NEED_TEXT && GDISP_NEED_MULTITHREAD) || defined(__DOXYGEN__)
/**
* @brief Draw a text character.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
*
* @param[in] x,y The position for the text
* @param[in] c The character to draw
* @param[in] color The color to use
*
* @api
*/
void gdispDrawChar(coord_t x, coord_t y, char c, font_t font, color_t color) {
MUTEX_ENTER
gdisp_lld_drawchar(x, y, c, font, color);
MUTEX_EXIT
}
#endif
#if (GDISP_NEED_TEXT && GDISP_NEED_MULTITHREAD) || defined(__DOXYGEN__)
/**
* @brief Draw a text character with a filled background.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
*
* @param[in] x,y The position for the text
* @param[in] c The character to draw
* @param[in] color The color to use
* @param[in] bgcolor The background color to use
*
* @api
*/
void gdispFillChar(coord_t x, coord_t y, char c, font_t font, color_t color, color_t bgcolor) {
MUTEX_ENTER
gdisp_lld_fillchar(x, y, c, font, color, bgcolor);
MUTEX_EXIT
}
#endif
#if GDISP_NEED_TEXT || defined(__DOXYGEN__)
/**
* @brief Draw a text string.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
*
* @param[in] x,y The position for the text
* @param[in] str The string to draw
* @param[in] color The color to use
*
* @api
*/
void gdispDrawString(coord_t x, coord_t y, const char *str, font_t font, color_t color) {
/* No mutex required as we only call high level functions which have their own mutex */
coord_t w;
char c;
int first;
first = 1;
while(*str) {
/* Get the next printable character */
c = *str++;
w = _getCharWidth(c);
if (!w) continue;
/* Handle inter-character padding */
if (font->charPadding) {
if (!first)
x += font->charPadding;
else
first = 0;
}
/* Print the character */
gdispDrawChar(x, y, c, font, color);
x += w;
}
}
#endif
#if GDISP_NEED_TEXT || defined(__DOXYGEN__)
/**
* @brief Draw a text string.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
*
* @param[in] x,y The position for the text
* @param[in] str The string to draw
* @param[in] color The color to use
* @param[in] bgcolor The background color to use
*
* @api
*/
void gdispFillString(coord_t x, coord_t y, const char *str, font_t font, color_t color, color_t bgcolor) {
/* No mutex required as we only call high level functions which have their own mutex */
coord_t w;
char c;
int first;
first = 1;
while(*str) {
/* Get the next printable character */
c = *str++;
w = _getCharWidth(c);
if (!w) continue;
/* Handle inter-character padding */
if (font->charPadding) {
if (!first) {
gdispFillArea(x, y, font->charPadding, font->height, bgcolor);
x += font->charPadding;
} else
first = 0;
}
/* Print the character */
gdispFillChar(x, y, c, font, color, bgcolor);
x += w;
}
}
#endif
#if GDISP_NEED_TEXT || defined(__DOXYGEN__)
/**
* @brief Draw a text string verticly centered within the specified box.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
* @note The entire box is filled
*
* @param[in] x,y The position for the text (need to define top-right or base-line - check code)
* @param[in] str The string to draw
* @param[in] color The color to use
* @param[in] bgcolor The background color to use
* @param[in] justify Justify the text left, center or right within the box
*
* @api
*/
void gdispDrawStringBox(coord_t x, coord_t y, coord_t cx, coord_t cy, const char* str, font_t font, color_t color, color_t bgcolor, justify_t justify) {
/* No mutex required as we only call high level functions which have their own mutex */
coord_t w, ypos, xpos;
char c;
int first;
const char *rstr;
/* Oops - font too large for the area */
if (font->height > cy) return;
/* See if we need to fill above the font */
ypos = (cy - font->height)/2;
if (ypos > 0) {
gdispFillArea(x, y, cx, ypos, bgcolor);
y += ypos;
cy -= ypos;
}
/* See if we need to fill below the font */
ypos = cy - font->height;
if (ypos > 0) {
gdispFillArea(x, y+cy-ypos, cx, ypos, bgcolor);
cy -= ypos;
}
/* get the start of the printable string and the xpos */
switch(justify) {
case justifyCenter:
/* Get the length of the entire string */
w = gdispStringWidth(str, font);
if (w <= cx)
xpos = x + (cx - w)/2;
else {
/* Calculate how much of the string we need to get rid of */
ypos = (w - cx)/2;
xpos = 0;
first = 1;
while(*str) {
/* Get the next printable character */
c = *str++;
w = _getCharWidth(c);
if (!w) continue;
/* Handle inter-character padding */
if (font->charPadding) {
if (!first) {
xpos += font->charPadding;
if (xpos > ypos) break;
} else
first = 0;
}
/* Print the character */
xpos += w;
if (xpos > ypos) break;
}
xpos = ypos - xpos + x;
}
break;
case justifyRight:
/* Find the end of the string */
for(rpos = str; *str; str++);
xpos = x+cx - 2;
first = 1;
for(str--; str >= rpos; str--) {
/* Get the next printable character */
c = *str;
w = _getCharWidth(c);
if (!w) continue;
/* Handle inter-character padding */
if (font->charPadding) {
if (!first) {
if (xpos - font->charPadding < x) break;
xpos -= font->charPadding;
} else
first = 0;
}
/* Print the character */
if (xpos - w < x) break;
xpos -= w;
}
str++;
break;
case justifyLeft:
/* Fall through */
xpos = x+1;
default:
break;
}
/* Fill any space to the left */
if (x < xpos)
gdispFillArea(x, y, xpos-x, cy, bgcolor);
/* Print characters until we run out of room */
first = 1;
while(*str) {
/* Get the next printable character */
c = *str++;
w = _getCharWidth(c);
if (!w) continue;
/* Handle inter-character padding */
if (font->charPadding) {
if (!first) {
if (xpos + font->charPadding > x+cx) break;
gdispFillArea(xpos, y, font->charPadding, cy, bgcolor);
xpos += font->charPadding;
} else
first = 0;
}
/* Print the character */
if (xpos + w > x+cx) break;
gdispFillChar(xpos, y, c, font, color, bgcolor);
xpos += w;
}
/* Fill any space to the right */
if (xpos < x+cx)
gdispFillArea(xpos, y, x+cx-xpos, cy, bgcolor);
}
#endif
#if GDISP_NEED_TEXT || defined(__DOXYGEN__)
/**
* @brief Get a metric of a font.
* @return The metric requested in pixels.
*
* @param[in] font The font to test
* @param[in] metric The metric to measure
*
* @api
*/
coord_t gdispGetFontMetric(font_t font, fontmetric_t metric) {
/* No mutex required as we only read static data */
switch(metric) {
case fontHeight: return font->height;
case fontDescendersHeight: return font->descenderHeight;
case fontLineSpacing: return font->lineSpacing;
case fontCharPadding: return font->charPadding;
case fontMinWidth: return font->minWidth;
case fontMaxWidth: return font->maxWidth;
}
return 0;
}
#endif
#if GDISP_NEED_TEXT || defined(__DOXYGEN__)
/**
* @brief Get the pixel width of a character.
* @return The width of the character in pixels. Does not include any between character padding.
*
* @param[in] c The character to draw
* @param[in] font The font to use
*
* @api
*/
coord_t gdispGetCharWidth(char c, font_t font) {
/* No mutex required as we only read static data */
return _getCharWidth(font, c);
}
#endif
#if GDISP_NEED_TEXT || defined(__DOXYGEN__)
/**
* @brief Get the pixel width of a string.
* @return The width of the string in pixels.
*
* @param[in] str The string to measure
* @param[in] font The font to use
*
* @api
*/
coord_t gdispStringWidth(const char* str, font_t font) {
/* No mutex required as we only read static data */
coord_t w, x;
char c;
int first;
first = 1;
x = 0;
while(*str) {
/* Get the next printable character */
c = *str++;
w = _getCharWidth(c);
if (!w) continue;
/* Handle inter-character padding */
if (font->charPadding) {
if (!first)
x += font->charPadding;
else
first = 0;
}
/* Add the character width */
x += w;
}
return x;
}
#endif
#if (!defined(gdispPackPixels) && !defined(GDISP_PIXELFORMAT_CUSTOM)) || defined(__DOXYGEN__)
/**
* @brief Pack a pixel into a pixel buffer.
* @note This function performs no buffer boundary checking
* regardless of whether GDISP_NEED_CLIPPING has been specified.
*
* @param[in] buf The buffer to put the pixel in
* @param[in] cx The width of a pixel line
* @param[in] x, y The location of the pixel to place
* @param[in] color The color to put into the buffer
*
* @api
*/
void gdispPackPixels(pixel_t *buf, coord_t cx, coord_t x, coord_t y, color_t color) {
/* No mutex required as we only read static data */
#if defined(GDISP_PIXELFORMAT_RGB888)
#error "GDISP: Packed pixels not supported yet"
#elif defined(GDISP_PIXELFORMAT_RGB444)
#error "GDISP: Packed pixels not supported yet"
#elif defined(GDISP_PIXELFORMAT_RGB666)
#error "GDISP: Packed pixels not supported yet"
#elif
#error "GDISP: Unsupported packed pixel format"
#endif
}
#endif
#if (GDISP_NEED_PIXELREAD && GDISP_NEED_MULTITHREAD) || defined(__DOXYGEN__)
/**
* @brief Get the color of a pixel.
* @return The color of the pixel.
*
* @param[in] x,y The position of the pixel
*
* @api
*/
color_t gdispGetPixelColor(coord_t x, coord_t y) {
color_t c;
MUTEX_ENTER
c = gdisp_lld_getpixelcolor(x, y);
MUTEX_EXIT
return c;
}
#endif
#if (GDISP_NEED_SCROLL && GDISP_NEED_MULTITHREAD) || defined(__DOXYGEN__)
/**
* @brief Scroll vertically a section of the screen.
* @note Optional.
* @note If lines is >= cy, it is equivelent to a area fill with bgcolor.
*
* @param[in] x, y The start of the area to be scrolled
* @param[in] cx, cy The size of the area to be scrolled
* @param[in] lines The number of lines to scroll (Can be positive or negative)
* @param[in] bgcolor The color to fill the newly exposed area.
*
* @api
*/
void gdispVerticalScroll(coord_t x, coord_t y, coord_t cx, coord_t cy, int lines, color_t bgcolor) {
MUTEX_ENTER
gdisp_lld_verticalscroll(x, y, cx, cy, lines, bgcolor);
MUTEX_EXIT
}
#endif
#endif /* HAL_USE_GDISP */
/** @} */

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@ -0,0 +1,422 @@
/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT 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/RT 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/>.
---
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes ChibiOS/RT, without being obliged to provide
the source code for any proprietary components. See the file exception.txt
for full details of how and when the exception can be applied.
*/
/*
Concepts and parts of this file have been contributed by:
Joel Bodenmann aka Tectu -> Maintainer
Andrew Hannam aka inmarket -> Framework
Badger -> console implementation and FSMC
Abhishek -> font rendering
Ben William -> fastMath and lcdDrawEllipse()
Dongxu Li aka dxli -> lcdDrawEllipse() filled option
*/
/*
Emulation routines included into gdisp.c
*/
/*
Even though this is a software emulation of a low level driver
most validation doesn't need to happen here as eventually
we call a real low level driver routine and if validation is
required - it will do it.
*/
#if !GDISP_HARDWARE_CLEARS
void gdisp_lld_clear(color_t color) {
gdisp_lld_fillarea(0, 0, GDISP1.Width, GDISP1.Height, color);
}
#endif
#if !GDISP_HARDWARE_LINES
void gdisp_lld_drawline(coord_t x0, coord_t y0, coord_t x1, coord_t y1, color_t color) {
int16_t dy, dx;
int16_t addx, addy;
int16_t P, diff, i;
#if GDISP_HARDWARE_FILLS || GDISP_HARDWARE_SCROLL
// speed improvement if vertical or horizontal
if (x0 == x1) {
if (y1 > y0)
gdisp_lld_fillarea(x0, y0, 1, y1-y0+1, color);
else
gdisp_lld_fillarea(x0, y1, 1, y0-y1+1, color);
return;
}
if (y0 == y1) {
if (x1 > x0)
gdisp_lld_fillarea(x0, y0, x1-x0+1, 1, color);
else
gdisp_lld_fillarea(x0, y1, x0-x1+1, 1, color);
return;
}
#endif
if (x1 >= x0) {
dx = x1 - x0;
addx = 1;
} else {
dx = x0 - x1;
addx = -1;
}
if (y1 >= y0) {
dy = y1 - y0;
addy = 1;
} else {
dy = y0 - y1;
addy = -1;
}
if (dx >= dy) {
dy *= 2;
P = dy - dx;
diff = P - dx;
for(i=0; i<=dx; ++i) {
gdisp_lld_drawpixel(x0, y0, color);
if (P < 0) {
P += dy;
x0 += addx;
} else {
P += diff;
x0 += addx;
y0 += addy;
}
}
} else {
dx *= 2;
P = dx - dy;
diff = P - dy;
for(i=0; i<=dy; ++i) {
gdisp_lld_drawpixel(x0, y0, color);
if (P < 0) {
P += dx;
y0 += addy;
} else {
P += diff;
x0 += addx;
y0 += addy;
}
}
}
}
#endif
#if !GDISP_HARDWARE_BOX
void gdisp_lld_drawbox(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
coord x1, y1;
x1 = x+cx-1;
y1 = y+cy-1;
if (cx > 2) {
if (cy >= 1) {
gdisp_lld_drawline(x, y, x1, y, color);
if (cy >= 2) {
gdisp_lld_drawline(x, y1, x1, y1, color);
if (cy > 2) {
gdisp_lld_drawline(x, y+1, x, y1-1, color);
gdisp_lld_drawline(x1, y+1, x1, y1-1, color);
}
}
}
} else if (cx == 2) {
gdisp_lld_drawline(x, y, x, y1, color);
gdisp_lld_drawline(x1, y, x1, y1, color);
} else if (cx == 1) {
gdisp_lld_drawline(x, y, x, y1, color);
}
}
#endif
#if !GDISP_HARDWARE_FILLS
void gdisp_lld_fillarea(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
#if GDISP_HARDWARE_SCROLL
gdisp_lld_verticalscroll(x, y, cx, cy, cy, color);
#elif GDISP_HARDWARE_LINES
coord_t x1, y1;
x1 = x + cx - 1;
y1 = y + cy;
for(; y < y1; y++)
gdisp_lld_drawline(x, y, x1, y, color);
#else
coord_t x0, x1, y1;
x0 = x;
x1 = x + cx;
y1 = y + cy;
for(; y < y1; y++)
for(x = x0; x < x1; x++)
gdisp_lld_drawpixel(x, y, color);
#endif
}
#endif
#if !GDISP_HARDWARE_BITFILLS
void gdisp_lld_blitarea(coord_t x, coord_t y, coord_t cx, coord_t cy, pixel_t *buffer) {
coord_t x0, x1, y1;
x0 = x;
x1 = x + cx;
y1 = y + cy;
for(; y < y1; y++)
for(x = x0; x < x1; x++)
gdisp_lld_drawpixel(x, y, *buffer++);
}
#endif
#if GDISP_NEED_CIRCLE && !GDISP_HARDWARE_CIRCLES
void gdisp_lld_drawcircle(coord_t x, coord_t y, coord_t radius, color_t color) {
int16_t a, b, P;
a = 0;
b = radius;
P = 1 - radius;
do {
gdisp_lld_drawpixel(a+x, b+y, color);
gdisp_lld_drawpixel(b+x, a+y, color);
gdisp_lld_drawpixel(x-a, b+y, color);
gdisp_lld_drawpixel(x-b, a+y, color);
gdisp_lld_drawpixel(b+x, y-a, color);
gdisp_lld_drawpixel(a+x, y-b, color);
gdisp_lld_drawpixel(x-a, y-b, color);
gdisp_lld_drawpixel(x-b, y-a, color);
if (P < 0)
P += 3 + 2*a++;
else
P += 5 + 2*(a++ - b--);
} while(a <= b);
}
#endif
#if GDISP_NEED_CIRCLE && !GDISP_HARDWARE_CIRCLEFILLS
void gdisp_lld_fillcircle(coord_t x, coord_t y, coord_t radius, color_t color) {
int16_t a, b, P;
a = 0;
b = radius;
P = 1 - radius;
do {
gdisp_lld_drawline(x-a, y+b, x+a, y+b, color);
gdisp_lld_drawline(x-a, y-b, x+a, y-b, color);
gdisp_lld_drawline(x-b, y+a, x+b, y+a, color);
gdisp_lld_drawline(x-b, y-a, x+b, y-a, color);
if (P < 0)
P += 3 + 2*a++;
else
P += 5 + 2*(a++ - b--);
} while(a <= b);
}
#endif
#if GDISP_NEED_ELLIPSE && !GDISP_HARDWARE_ELLIPSES
void gdisp_lld_drawellipse(coord_t x, coord_t y, coord_t a, coord_t b, color_t color) {
int dx = 0, dy = b; /* im I. Quadranten von links oben nach rechts unten */
long a2 = a*a, b2 = b*b;
long err = b2-(2*b-1)*a2, e2; /* Fehler im 1. Schritt */
do {
gdisp_lld_drawpixel(x+dx, y+dy, color); /* I. Quadrant */
gdisp_lld_drawpixel(x-dx, y+dy, color); /* II. Quadrant */
gdisp_lld_drawpixel(x-dx, y-dy, color); /* III. Quadrant */
gdisp_lld_drawpixel(x+dx, y-dy, color); /* IV. Quadrant */
e2 = 2*err;
if(e2 < (2*dx+1)*b2) {
dx++;
err += (2*dx+1)*b2;
}
if(e2 > -(2*dy-1)*a2) {
dy--;
err -= (2*dy-1)*a2;
}
} while(dy >= 0);
while(dx++ < a) { /* fehlerhafter Abbruch bei flachen Ellipsen (b=1) */
gdisp_lld_drawpixel(x+dx, y, color); /* -> Spitze der Ellipse vollenden */
gdisp_lld_drawpixel(x-dx, y, color);
}
}
#endif
#if GDISP_NEED_ELLIPSE && !GDISP_HARDWARE_ELLIPSEFILLS