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ugfx/include/gdisp/gdisp.h
inmarket 157ec08034 Merge branch 'master' into fonts
2013-08-01 15:06:32 +10:00

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/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* @file include/gdisp/gdisp.h
* @brief GDISP Graphic Driver subsystem header file.
*
* @addtogroup GDISP
*
* @brief Module to interface graphic / pixel oriented displays
*
* @details The GDISP module provides high level abstraction to interface pixel oriented graphic displays.
*
* @pre GFX_USE_GDISP must be set to TRUE in gfxconf.h
*
* @{
*/
#ifndef _GDISP_H
#define _GDISP_H
#include "gfx.h"
/* This type definition is defined here as it gets used in other gfx sub-systems even
* if GFX_USE_GDISP is FALSE.
*/
/**
* @brief The type for a coordinate or length on the screen.
*/
typedef int16_t coord_t;
#if GFX_USE_GDISP || defined(__DOXYGEN__)
/*===========================================================================*/
/* Type definitions */
/*===========================================================================*/
/**
* @brief Type for a 2D point on the screen.
*/
typedef struct point_t {
coord_t x, y;
} point;
/**
* @brief Type for the text justification.
*/
typedef enum justify {
justifyLeft = 0,
justifyCenter = 1,
justifyRight = 2
} justify_t;
/**
* @brief Type for the font metric.
*/
typedef enum fontmetric {fontHeight, fontDescendersHeight, fontLineSpacing, fontCharPadding, fontMinWidth, fontMaxWidth} fontmetric_t;
/**
* @brief The type of a font.
*/
typedef const struct mf_font_s* font_t;
/**
* @brief Type for the screen orientation.
*/
typedef enum orientation {GDISP_ROTATE_0, GDISP_ROTATE_90, GDISP_ROTATE_180, GDISP_ROTATE_270} gdisp_orientation_t;
/**
* @brief Type for the available power modes for the screen.
*/
typedef enum powermode {powerOff, powerSleep, powerDeepSleep, powerOn} gdisp_powermode_t;
/*
* This is not documented in Doxygen as it is meant to be a black-box.
* Applications should always use the routines and macros defined
* below to access it in case the implementation ever changed.
*/
typedef struct GDISPDriver_t {
coord_t Width;
coord_t Height;
gdisp_orientation_t Orientation;
gdisp_powermode_t Powermode;
uint8_t Backlight;
uint8_t Contrast;
#if GDISP_NEED_CLIP || GDISP_NEED_VALIDATION
coord_t clipx0, clipy0;
coord_t clipx1, clipy1; /* not inclusive */
#endif
} GDISPDriver;
extern GDISPDriver GDISP;
/*===========================================================================*/
/* Constants. */
/*===========================================================================*/
/**
* @brief Driver Control Constants
* @details Unsupported control codes are ignored.
* @note The value parameter should always be typecast to (void *).
* @note There are some predefined and some specific to the low level driver.
* @note GDISP_CONTROL_POWER - Takes a gdisp_powermode_t
* GDISP_CONTROL_ORIENTATION - Takes a gdisp_orientation_t
* GDISP_CONTROL_BACKLIGHT - Takes an int from 0 to 100. For a driver
* that only supports off/on anything other
* than zero is on.
* GDISP_CONTROL_CONTRAST - Takes an int from 0 to 100.
* GDISP_CONTROL_LLD - Low level driver control constants start at
* this value.
*/
#define GDISP_CONTROL_POWER 0
#define GDISP_CONTROL_ORIENTATION 1
#define GDISP_CONTROL_BACKLIGHT 2
#define GDISP_CONTROL_CONTRAST 3
#define GDISP_CONTROL_LLD 1000
/**
* @brief Driver Query Constants
* @details Unsupported query codes return (void *)-1.
* @note The result should be typecast the required type.
* @note GDISP_QUERY_LLD - Low level driver control constants start at
* this value.
*/
#define GDISP_QUERY_LLD 1000
/**
* @brief Driver Pixel Format Constants
*/
#define GDISP_PIXELFORMAT_MONO 1
#define GDISP_PIXELFORMAT_RGB565 565
#define GDISP_PIXELFORMAT_RGB888 888
#define GDISP_PIXELFORMAT_RGB444 444
#define GDISP_PIXELFORMAT_RGB332 332
#define GDISP_PIXELFORMAT_RGB666 666
#define GDISP_PIXELFORMAT_CUSTOM 99999
#define GDISP_PIXELFORMAT_ERROR 88888
/**
* @name 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)
/** @} */
/*===========================================================================*/
/* Defines related to the pixel format */
/*===========================================================================*/
#if 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 GDISP_PIXELFORMAT == GDISP_PIXELFORMAT_MONO
typedef uint8_t color_t;
#define COLOR(c) ((color_t)(c))
#define MASKCOLOR FALSE
#define RGB2COLOR(r,g,b) ((r|g|b) ? 1 : 0)
#define HTML2COLOR(h) (h ? 1 : 0)
#define RED_OF(c) (c ? 255 : 0)
#define GREEN_OF(c) (c ? 255 : 0)
#define BLUE_OF(c) (c ? 255 : 0)
#elif GDISP_PIXELFORMAT == GDISP_PIXELFORMAT_RGB565
typedef uint16_t color_t;
#define COLOR(c) ((color_t)(c))
#define MASKCOLOR FALSE
#define RGB2COLOR(r,g,b) ((color_t)((((r) & 0xF8)<<8) | (((g) & 0xFC)<<3) | (((b) & 0xF8)>>3)))
#define HTML2COLOR(h) ((color_t)((((h) & 0xF80000)>>8) | (((h) & 0x00FC00)>>5) | (((h) & 0x0000F8)>>3)))
#define RED_OF(c) (((c) & 0xF800)>>8)
#define GREEN_OF(c) (((c)&0x07E0)>>3)
#define BLUE_OF(c) (((c)&0x001F)<<3)
#elif GDISP_PIXELFORMAT == 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 GDISP_PIXELFORMAT == 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 GDISP_PIXELFORMAT == 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 GDISP_PIXELFORMAT == 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 GDISP_PIXELFORMAT != 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 GDISP_PIXELFORMAT != GDISP_PIXELFORMAT_RGB888 \
&& GDISP_PIXELFORMAT != GDISP_PIXELFORMAT_RGB444 \
&& GDISP_PIXELFORMAT != GDISP_PIXELFORMAT_RGB666 \
&& GDISP_PIXELFORMAT != GDISP_PIXELFORMAT_CUSTOM
#error "GDISP: A packed pixel format has been specified for an unsupported pixel format."
#endif
#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
/**
* @brief The type of a pixel.
*/
typedef color_t pixel_t;
#ifdef __cplusplus
extern "C" {
#endif
#if GDISP_NEED_MULTITHREAD || GDISP_NEED_ASYNC || defined(__DOXYGEN__)
/* These routines can be hardware accelerated
* - Do not add a routine here unless it has also been added to the hardware acceleration layer
*/
/* Base Functions */
/**
* @brief Test if the GDISP engine is currently drawing.
* @note This function will always return FALSE if
* GDISP_NEED_ASYNC is not defined.
*
* @return TRUE if gdisp is busy, FALSE otherwise
*
* @api
*/
bool_t gdispIsBusy(void);
/* Drawing Functions */
/**
* @brief Clear the display to the specified color.
*
* @param[in] color The color to use when clearing the screen
*
* @api
*/
void gdispClear(color_t color);
/**
* @brief Set a pixel in the specified color.
*
* @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);
/**
* @brief Draw a line.
*
* @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);
/**
* @brief Fill an area with a color.
*
* @param[in] x,y 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);
/**
* @brief Fill an area using the supplied bitmap.
* @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).
* @note If GDISP_NEED_ASYNC is defined then the buffer must be static
* or at least retained until this call has finished the blit. You can
* tell when all graphics drawing is finished by @p gdispIsBusy() going FALSE.
*
* @param[in] x,y The start position
* @param[in] cx,cy The size of the filled area
* @param[in] srcx,srcy The bitmap position to start the fill form
* @param[in] srccx The width of a line in the bitmap
* @param[in] buffer The bitmap in the driver's pixel format
*
* @api
*/
void gdispBlitAreaEx(coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t srcx, coord_t srcy, coord_t srccx, const pixel_t *buffer);
/* Clipping Functions */
#if GDISP_NEED_CLIP || defined(__DOXYGEN__)
/**
* @brief Clip all drawing to the defined area.
*
* @param[in] x,y The start position
* @param[in] cx,cy The size of the clip area
*
* @api
*/
void gdispSetClip(coord_t x, coord_t y, coord_t cx, coord_t cy);
#endif
/* Circle Functions */
#if GDISP_NEED_CIRCLE || defined(__DOXYGEN__)
/**
* @brief Draw a circle.
*
* @param[in] x,y 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);
/**
* @brief Draw a filled circle.
*
* @param[in] x,y 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);
#endif
/* Ellipse Functions */
#if GDISP_NEED_ELLIPSE || defined(__DOXYGEN__)
/**
* @brief Draw an ellipse.
*
* @param[in] x,y 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);
/**
* @brief Draw a filled ellipse.
*
* @param[in] x,y 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);
#endif
/* Arc Functions */
#if GDISP_NEED_ARC || defined(__DOXYGEN__)
/*
* @brief Draw an arc.
*
* @param[in] x0,y0 The center point
* @param[in] radius The radius of the arc
* @param[in] start The start angle (0 to 360)
* @param[in] end The end angle (0 to 360)
* @param[in] color The color of the arc
*
* @api
*/
void gdispDrawArc(coord_t x, coord_t y, coord_t radius, coord_t startangle, coord_t endangle, color_t color);
/*
* @brief Draw a filled arc.
* @note Not very efficient currently - does lots of overdrawing
*
* @param[in] x0,y0 The center point
* @param[in] radius The radius of the arc
* @param[in] start The start angle (0 to 360)
* @param[in] end The end angle (0 to 360)
* @param[in] color The color of the arc
*
* @api
*/
void gdispFillArc(coord_t x, coord_t y, coord_t radius, coord_t startangle, coord_t endangle, color_t color);
#endif
/* Read a pixel Function */
#if GDISP_NEED_PIXELREAD || 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);
#endif
/* Scrolling Function - clears the area scrolled out */
#if GDISP_NEED_SCROLL || defined(__DOXYGEN__)
/**
* @brief Scroll vertically a section of the screen.
* @pre GDISP_NEED_SCROLL must be set to TRUE in gfxconf.h
* @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);
#endif
/* Set driver specific control */
#if GDISP_NEED_CONTROL || defined(__DOXYGEN__)
/**
* @brief Control hardware specific parts of the display. eg powermodes, backlight etc
* @note Depending on the hardware implementation this function may not
* support some codes. They will be ignored.
*
* @param[in] what what you want to control
* @param[in] value The value to be assigned
*
* @api
*/
void gdispControl(unsigned what, void *value);
#endif
/* Query driver specific data */
#if GDISP_NEED_QUERY || defined(__DOXYGEN__)
/**
* @brief Query a property of the display.
* @note The result must be typecast to the correct type.
* @note An unsupported query will return (void *)-1.
*
* @param[in] what What to query
*
* @api
*/
void *gdispQuery(unsigned what);
#endif
#else
/* Include the low level driver information */
#include "gdisp/lld/gdisp_lld.h"
/* The same as above but use the low level driver directly if no multi-thread support is needed */
#define gdispIsBusy() FALSE
#define gdispClear(color) gdisp_lld_clear(color)
#define gdispDrawPixel(x, y, color) gdisp_lld_draw_pixel(x, y, color)
#define gdispDrawLine(x0, y0, x1, y1, color) gdisp_lld_draw_line(x0, y0, x1, y1, color)
#define gdispFillArea(x, y, cx, cy, color) gdisp_lld_fill_area(x, y, cx, cy, color)
#define gdispBlitAreaEx(x, y, cx, cy, sx, sy, scx, buf) gdisp_lld_blit_area_ex(x, y, cx, cy, sx, sy, scx, buf)
#define gdispSetClip(x, y, cx, cy) gdisp_lld_set_clip(x, y, cx, cy)
#define gdispDrawCircle(x, y, radius, color) gdisp_lld_draw_circle(x, y, radius, color)
#define gdispFillCircle(x, y, radius, color) gdisp_lld_fill_circle(x, y, radius, color)
#define gdispDrawArc(x, y, radius, sangle, eangle, color) gdisp_lld_draw_arc(x, y, radius, sangle, eangle, color)
#define gdispFillArc(x, y, radius, sangle, eangle, color) gdisp_lld_fill_arc(x, y, radius, sangle, eangle, color)
#define gdispDrawEllipse(x, y, a, b, color) gdisp_lld_draw_ellipse(x, y, a, b, color)
#define gdispFillEllipse(x, y, a, b, color) gdisp_lld_fill_ellipse(x, y, a, b, color)
#define gdispGetPixelColor(x, y) gdisp_lld_get_pixel_color(x, y)
#define gdispVerticalScroll(x, y, cx, cy, lines, bgcolor) gdisp_lld_vertical_scroll(x, y, cx, cy, lines, bgcolor)
#define gdispControl(what, value) gdisp_lld_control(what, value)
#define gdispQuery(what) gdisp_lld_query(what)
#endif
/* These routines are not hardware accelerated
* - Do not add a hardware accelerated routines here.
*/
/* Extra drawing functions */
/**
* @brief Draw a rectangular box.
*
* @param[in] x,y The start position
* @param[in] cx,cy The size of the box (outside dimensions)
* @param[in] color The color to use
*
* @api
*/
void gdispDrawBox(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color);
#if GDISP_NEED_CONVEX_POLYGON || defined(__DOXYGEN__)
/**
* @brief Draw an enclosed polygon (convex, non-convex or complex).
*
* @param[in] tx, ty Transform all points in pntarray by tx, ty
* @param[in] pntarray An array of points
* @param[in] cnt The number of points in the array
* @param[in] color The color to use
*
* @api
*/
void gdispDrawPoly(coord_t tx, coord_t ty, const point *pntarray, unsigned cnt, color_t color);
/**
* @brief Fill a convex polygon
* @details Doesn't handle non-convex or complex polygons.
*
* @param[in] tx, ty Transform all points in pntarray by tx, ty
* @param[in] pntarray An array of points
* @param[in] cnt The number of points in the array
* @param[in] color The color to use
*
* @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. In our case we generalise
* this a little by saying that an infinite horizontal line (at any y value) will cross
* no more than two edges on the polygon. Some non-convex polygons do fit this criteria
* and can therefore be drawn.
* @note This routine is designed to be very efficient with even simple display hardware.
*
* @api
*/
void gdispFillConvexPoly(coord_t tx, coord_t ty, const point *pntarray, unsigned cnt, color_t color);
#endif
/* Text Functions */
#if GDISP_NEED_TEXT || defined(__DOXYGEN__)
/**
* @brief Draw a text character.
*
* @param[in] x,y The position for the text
* @param[in] c The character to draw
* @param[in] font The font to use
* @param[in] color The color to use
*
* @api
*/
void gdispDrawChar(coord_t x, coord_t y, uint16_t c, font_t font, color_t color);
/**
* @brief Draw a text character with a filled background.
*
* @param[in] x,y The position for the text
* @param[in] c The character to draw
* @param[in] font The font to use
* @param[in] color The color to use
* @param[in] bgcolor The background color to use
*
* @api
*/
void gdispFillChar(coord_t x, coord_t y, uint16_t c, font_t font, color_t color, color_t bgcolor);
/**
* @brief Draw a text string.
*
* @param[in] x,y The position for the text
* @param[in] font The font to use
* @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);
/**
* @brief Draw a text string.
*
* @param[in] x,y The position for the text
* @param[in] str The string to draw
* @param[in] font The font to use
* @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);
/**
* @brief Draw a text string vertically centered within the specified box.
*
* @param[in] x,y The position for the text (need to define top-right or base-line - check code)
* @param[in] cx,cy The width and height of the box
* @param[in] str The string to draw
* @param[in] font The font to use
* @param[in] color The 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, justify_t justify);
/**
* @brief Draw a text string vertically centered within the specified box. The box background is filled with the specified background color.
* @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] cx,cy The width and height of the box
* @param[in] str The string to draw
* @param[in] font The font to use
* @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 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);
/**
* @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);
/**
* @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);
/**
* @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 gdispGetStringWidth(const char* str, font_t font);
/**
* @brief Find a font and return it.
* @details The supplied name is matched against the font name. A '*' will replace 0 or more characters.
* @return Returns a font or NULL if no matching font could be found.
*
* @param[in] name The font name to find.
*
* @note Wildcard matching will match the shortest possible match.
*
* @api
*/
font_t gdispOpenFont(const char *name);
/**
* @brief Release a font after use.
*
* @param[in] font The font to release.
*
* @api
*/
void gdispCloseFont(font_t font);
/**
* @brief Make a scaled copy of an existing font.
* @details Allocates memory for new font metadata using gfxAlloc, remember to close font after use!
* @return A new font or NULL if out of memory.
*
* @param[in] font The base font to use.
* @param[in] scale_x The scale factor in horizontal direction.
* @param[in] scale_y The scale factor in vertical direction.
*/
font_t gdispScaleFont(font_t font, uint8_t scale_x, uint8_t scale_y);
/**
* @brief Get the name of the specified font.
* @returns The name of the font.
*
* @param[in] font The font to get the name for.
*
* @api
*/
const char *gdispGetFontName(font_t font);
#endif
/* Extra Arc Functions */
#if GDISP_NEED_ARC || defined(__DOXYGEN__)
/**
* @brief Draw a rectangular box with rounded corners
*
* @param[in] x,y The start position
* @param[in] cx,cy The size of the box (outside dimensions)
* @param[in] radius The radius of the rounded corners
* @param[in] color The color to use
*
* @api
*/
void gdispDrawRoundedBox(coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t radius, color_t color);
/**
* @brief Draw a filled rectangular box with rounded corners
*
* @param[in] x,y The start position
* @param[in] cx,cy The size of the box (outside dimensions)
* @param[in] radius The radius of the rounded corners
* @param[in] color The color to use
*
* @api
*/
void gdispFillRoundedBox(coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t radius, color_t color);
#endif
/**
* @brief Blend 2 colors according to the alpha
* @return The combined color
*
* @param[in] fg The foreground color
* @param[in] bg The background color
* @param[in] alpha The alpha value (0-255). 0 is all background, 255 is all foreground.
*
* @api
*/
color_t gdispBlendColor(color_t fg, color_t bg, uint8_t alpha);
/* Support routine for packed pixel formats */
#if !defined(gdispPackPixels) || defined(__DOXYGEN__)
/**
* @brief Pack a pixel into a pixel buffer.
* @note This function performs no buffer boundary checking
* regardless of whether GDISP_NEED_CLIP 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(const pixel_t *buf, coord_t cx, coord_t x, coord_t y, color_t color);
#endif
/*
* Macro definitions
*/
/* Now obsolete functions */
#define gdispBlitArea(x, y, cx, cy, buffer) gdispBlitAreaEx(x, y, cx, cy, 0, 0, cx, buffer)
/* Macro definitions for common gets and sets */
/**
* @brief Set the display power mode.
* @note Ignored if not supported by the display.
*
* @param[in] powerMode The new power mode
*
* @api
*/
#define gdispSetPowerMode(powerMode) gdispControl(GDISP_CONTROL_POWER, (void *)(unsigned)(powerMode))
/**
* @brief Set the display orientation.
* @note Ignored if not supported by the display.
*
* @param[in] newOrientation The new orientation
*
* @api
*/
#define gdispSetOrientation(newOrientation) gdispControl(GDISP_CONTROL_ORIENTATION, (void *)(unsigned)(newOrientation))
/**
* @brief Set the display backlight.
* @note Ignored if not supported by the display.
*
* @param[in] percent The new brightness (0 - 100%)
*
* @note For displays that only support backlight off and on,
* 0 = off, anything else = on
*
* @api
*/
#define gdispSetBacklight(percent) gdispControl(GDISP_CONTROL_BACKLIGHT, (void *)(unsigned)(percent))
/**
* @brief Set the display contrast.
* @note Ignored if not supported by the display.
*
* @param[in] percent The new contrast (0 - 100%)
*
* @api
*/
#define gdispSetContrast(percent) gdispControl(GDISP_CONTROL_CONTRAST, (void *)(unsigned)(percent))
/**
* @brief Get the display width in pixels.
*
* @api
*/
#define gdispGetWidth() (GDISP.Width)
/**
* @brief Get the display height in pixels.
*
* @api
*/
#define gdispGetHeight() (GDISP.Height)
/**
* @brief Get the current display power mode.
*
* @api
*/
#define gdispGetPowerMode() (GDISP.Powermode)
/**
* @brief Get the current display orientation.
*
* @api
*/
#define gdispGetOrientation() (GDISP.Orientation)
/**
* @brief Get the current display backlight brightness.
*
* @api
*/
#define gdispGetBacklight() (GDISP.Backlight)
/**
* @brief Get the current display contrast.
*
* @api
*/
#define gdispGetContrast() (GDISP.Contrast)
/* More interesting macro's */
/**
* @brief Reset the clip area to the full screen
*
* @api
*/
#define gdispUnsetClip() gdispSetClip(0,0,gdispGetWidth(),gdispGetHeight())
#ifdef __cplusplus
}
#endif
#if GDISP_NEED_IMAGE || defined(__DOXYGEN__)
#include "gdisp/image.h"
#endif
#endif /* GFX_USE_GDISP */
#endif /* _GDISP_H */
/** @} */
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