Milad
/
STM32CubeF1
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
STM32CubeF1/Drivers/BSP/STM3210E_EVAL/stm3210e_eval_lcd.c

1089 lines
28 KiB
C
Raw Blame History

/**
******************************************************************************
* @file stm3210e_eval_lcd.c
* @author MCD Application Team
* @version V7.0.0
* @date 14-April-2017
* @brief This file includes the driver for Liquid Crystal Display (LCD) module
* mounted on STM3210E-EVAL evaluation board.
@verbatim
==============================================================================
##### How to use this driver #####
==============================================================================
[..]
(#) This driver is used to drive indirectly an LCD TFT.
(#) This driver supports the AM-240320L8TNQW00H (ILI9320), AM-240320LDTNQW-05H (ILI9325)
AM-240320LDTNQW-02H (SPFD5408B) and AM240320LGTNQW-01H (HX8347D) LCD
mounted on MB895 daughter board
(#) The ILI9320, ILI9325, SPFD5408B and HX8347D components driver MUST be included with this driver.
(#) Initialization steps:
(++) Initialize the LCD using the BSP_LCD_Init() function.
(#) Display on LCD
(++) Clear the hole LCD using the BSP_LCD_Clear() function or only one specified
string line using the BSP_LCD_ClearStringLine() function.
(++) Display a character on the specified line and column using the BSP_LCD_DisplayChar()
function or a complete string line using the BSP_LCD_DisplayStringAtLine() function.
(++) Display a string line on the specified position (x,y in pixel) and align mode
using the BSP_LCD_DisplayStringAtLine() function.
(++) Draw and fill a basic shapes (dot, line, rectangle, circle, ellipse, .. bitmap, raw picture)
on LCD using a set of functions.
@endverbatim
******************************************************************************
* @attention
*
* Copyright (c) 2016 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm3210e_eval_lcd.h"
#include "../../../Utilities/Fonts/fonts.h"
#include "../../../Utilities/Fonts/font24.c"
#include "../../../Utilities/Fonts/font20.c"
#include "../../../Utilities/Fonts/font16.c"
#include "../../../Utilities/Fonts/font12.c"
#include "../../../Utilities/Fonts/font8.c"
/** @addtogroup BSP
* @{
*/
/** @addtogroup STM3210E_EVAL
* @{
*/
/** @defgroup STM3210E_EVAL_LCD STM3210E EVAL LCD
* @{
*/
/** @defgroup STM3210E_EVAL_LCD_Private_Defines STM3210E EVAL LCD Private Defines
* @{
*/
#define POLY_X(Z) ((int32_t)((pPoints + (Z))->X))
#define POLY_Y(Z) ((int32_t)((pPoints + (Z))->Y))
#define MAX_HEIGHT_FONT 17
#define MAX_WIDTH_FONT 24
#define OFFSET_BITMAP 54
/**
* @}
*/
/** @defgroup STM3210E_EVAL_LCD_Private_Macros STM3210E EVAL LCD Private Macros
* @{
*/
#define ABS(X) ((X) > 0 ? (X) : -(X))
/**
* @}
*/
/** @defgroup STM3210E_EVAL_LCD_Private_Variables STM3210E EVAL LCD Private Variables
* @{
*/
LCD_DrawPropTypeDef DrawProp;
static LCD_DrvTypeDef *lcd_drv;
/* Max size of bitmap will based on a font24 (17x24) */
static uint8_t bitmap[MAX_HEIGHT_FONT*MAX_WIDTH_FONT*2+OFFSET_BITMAP] = {0};
static uint32_t LCD_SwapXY = 0;
/**
* @}
*/
/** @defgroup STM3210E_EVAL_LCD_Private_Functions STM3210E EVAL LCD Private Functions
* @{
*/
static void LCD_DrawPixel(uint16_t Xpos, uint16_t Ypos, uint16_t RGBCode);
static void LCD_DrawChar(uint16_t Xpos, uint16_t Ypos, const uint8_t *pChar);
static void LCD_SetDisplayWindow(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height);
/**
* @}
*/
/** @defgroup STM3210E_EVAL_LCD_Exported_Functions STM3210E EVAL LCD Exported Functions
* @{
*/
/**
* @brief Initializes the LCD.
* @retval LCD state
*/
uint8_t BSP_LCD_Init(void)
{
uint8_t ret = LCD_ERROR;
/* Default value for draw propriety */
DrawProp.BackColor = 0xFFFF;
DrawProp.pFont = &Font24;
DrawProp.TextColor = 0x0000;
if(hx8347d_drv.ReadID() == HX8347D_ID)
{
lcd_drv = &hx8347d_drv;
ret = LCD_OK;
}
else if(spfd5408_drv.ReadID() == SPFD5408_ID)
{
lcd_drv = &spfd5408_drv;
ret = LCD_OK;
}
else if(ili9320_drv.ReadID() == ILI9320_ID)
{
lcd_drv = &ili9320_drv;
LCD_SwapXY = 1;
ret = LCD_OK;
}
if(ret != LCD_ERROR)
{
/* LCD Init */
lcd_drv->Init();
/* Initialize the font */
BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
}
#if defined(AFIO_MAPR2_FSMC_NADV_REMAP)
/* Disconnect FSMC pin NADV. */
/* FSMC and I2C share the same I/O pin: NADV/SDA (PB7). Since this pin */
/* is not used by FSMC on STM32F10E_EVAL board, disconnect it internally */
/* from FSMC to let it dedicated to I2C1 without sharing constraints. */
__HAL_AFIO_FSMCNADV_DISCONNECTED();
#else
#error "Warning: FSMC pin NADV cannot be disconnected by internal remap. \
Therefore, I2C1 will have a shared pin in conflict with FSMC. \
Use macro __HAL_RCC_FSMC_CLK_ENABLE() and \
__HAL_RCC_FSMC_CLK_DISABLE() to manage the FSMC and I2C1 usage \
alternatively."
#endif
return ret;
}
/**
* @brief Gets the LCD X size.
* @retval Used LCD X size
*/
uint32_t BSP_LCD_GetXSize(void)
{
return(lcd_drv->GetLcdPixelWidth());
}
/**
* @brief Gets the LCD Y size.
* @retval Used LCD Y size
*/
uint32_t BSP_LCD_GetYSize(void)
{
return(lcd_drv->GetLcdPixelHeight());
}
/**
* @brief Gets the LCD text color.
* @retval Used text color.
*/
uint16_t BSP_LCD_GetTextColor(void)
{
return DrawProp.TextColor;
}
/**
* @brief Gets the LCD background color.
* @retval Used background color
*/
uint16_t BSP_LCD_GetBackColor(void)
{
return DrawProp.BackColor;
}
/**
* @brief Sets the LCD text color.
* @param Color: Text color code RGB(5-6-5)
* @retval None
*/
void BSP_LCD_SetTextColor(uint16_t Color)
{
DrawProp.TextColor = Color;
}
/**
* @brief Sets the LCD background color.
* @param Color: Background color code RGB(5-6-5)
*/
void BSP_LCD_SetBackColor(uint16_t Color)
{
DrawProp.BackColor = Color;
}
/**
* @brief Sets the LCD text font.
* @param pFonts: Font to be used
*/
void BSP_LCD_SetFont(sFONT *pFonts)
{
DrawProp.pFont = pFonts;
}
/**
* @brief Gets the LCD text font.
* @retval Used font
*/
sFONT *BSP_LCD_GetFont(void)
{
return DrawProp.pFont;
}
/**
* @brief Clears the hole LCD.
* @param Color: Color of the background
*/
void BSP_LCD_Clear(uint16_t Color)
{
uint32_t counter = 0;
uint32_t color_backup = DrawProp.TextColor;
DrawProp.TextColor = Color;
for(counter = 0; counter < BSP_LCD_GetYSize(); counter++)
{
BSP_LCD_DrawHLine(0, counter, BSP_LCD_GetXSize());
}
DrawProp.TextColor = color_backup;
BSP_LCD_SetTextColor(DrawProp.TextColor);
}
/**
* @brief Clears the selected line.
* @param Line: Line to be cleared
* This parameter can be one of the following values:
* @arg 0..9: if the Current fonts is Font16x24
* @arg 0..19: if the Current fonts is Font12x12 or Font8x12
* @arg 0..29: if the Current fonts is Font8x8
*/
void BSP_LCD_ClearStringLine(uint16_t Line)
{
uint32_t colorbackup = DrawProp.TextColor;
DrawProp.TextColor = DrawProp.BackColor;;
/* Draw a rectangle with background color */
BSP_LCD_FillRect(0, (Line * DrawProp.pFont->Height), BSP_LCD_GetXSize(), DrawProp.pFont->Height);
DrawProp.TextColor = colorbackup;
BSP_LCD_SetTextColor(DrawProp.TextColor);
}
/**
* @brief Displays one character.
* @param Xpos: Start column address
* @param Ypos: Line where to display the character shape.
* @param Ascii: Character ascii code
* This parameter must be a number between Min_Data = 0x20 and Max_Data = 0x7E
*/
void BSP_LCD_DisplayChar(uint16_t Xpos, uint16_t Ypos, uint8_t Ascii)
{
LCD_DrawChar(Ypos, Xpos, &DrawProp.pFont->table[(Ascii-' ') *\
DrawProp.pFont->Height * ((DrawProp.pFont->Width + 7) / 8)]);
}
/**
* @brief Displays characters on the LCD.
* @param Xpos: X position (in pixel)
* @param Ypos: Y position (in pixel)
* @param pText: Pointer to string to display on LCD
* @param Mode: Display mode
* This parameter can be one of the following values:
* @arg CENTER_MODE
* @arg RIGHT_MODE
* @arg LEFT_MODE
*/
void BSP_LCD_DisplayStringAt(uint16_t Xpos, uint16_t Ypos, uint8_t *pText, Line_ModeTypdef Mode)
{
uint16_t refcolumn = 1, counter = 0;
uint32_t size = 0, ysize = 0;
uint8_t *ptr = pText;
/* Get the text size */
while (*ptr++) size ++ ;
/* Characters number per line */
ysize = (BSP_LCD_GetXSize()/DrawProp.pFont->Width);
switch (Mode)
{
case CENTER_MODE:
{
refcolumn = Xpos + ((ysize - size)* DrawProp.pFont->Width) / 2;
break;
}
case LEFT_MODE:
{
refcolumn = Xpos;
break;
}
case RIGHT_MODE:
{
refcolumn = -Xpos + ((ysize - size)*DrawProp.pFont->Width);
break;
}
default:
{
refcolumn = Xpos;
break;
}
}
/* Send the string character by character on lCD */
while ((*pText != 0) & (((BSP_LCD_GetXSize() - (counter*DrawProp.pFont->Width)) & 0xFFFF) >= DrawProp.pFont->Width))
{
/* Display one character on LCD */
BSP_LCD_DisplayChar(refcolumn, Ypos, *pText);
/* Decrement the column position by 16 */
refcolumn += DrawProp.pFont->Width;
/* Point on the next character */
pText++;
counter++;
}
}
/**
* @brief Displays a character on the LCD.
* @param Line: Line where to display the character shape
* This parameter can be one of the following values:
* @arg 0..9: if the Current fonts is Font16x24
* @arg 0..19: if the Current fonts is Font12x12 or Font8x12
* @arg 0..29: if the Current fonts is Font8x8
* @param pText: Pointer to string to display on LCD
*/
void BSP_LCD_DisplayStringAtLine(uint16_t Line, uint8_t *pText)
{
BSP_LCD_DisplayStringAt(0, LINE(Line),pText, LEFT_MODE);
}
/**
* @brief Reads an LCD pixel.
* @param Xpos: X position
* @param Ypos: Y position
* @retval RGB pixel color
*/
uint16_t BSP_LCD_ReadPixel(uint16_t Xpos, uint16_t Ypos)
{
uint16_t ret = 0;
if(lcd_drv->ReadPixel != NULL)
{
ret = lcd_drv->ReadPixel(Xpos, Ypos);
}
return ret;
}
/**
* @brief Draws an horizontal line.
* @param Xpos: X position
* @param Ypos: Y position
* @param Length: Line length
*/
void BSP_LCD_DrawHLine(uint16_t Xpos, uint16_t Ypos, uint16_t Length)
{
uint32_t index = 0;
if(lcd_drv->DrawHLine != NULL)
{
if (LCD_SwapXY)
{
uint16_t tmp = Ypos;
Ypos = Xpos;
Xpos = tmp;
}
lcd_drv->DrawHLine(DrawProp.TextColor, Ypos, Xpos, Length);
}
else
{
for(index = 0; index < Length; index++)
{
LCD_DrawPixel((Ypos + index), Xpos, DrawProp.TextColor);
}
}
}
/**
* @brief Draws a vertical line.
* @param Xpos: X position
* @param Ypos: Y position
* @param Length: Line length
*/
void BSP_LCD_DrawVLine(uint16_t Xpos, uint16_t Ypos, uint16_t Length)
{
uint32_t index = 0;
if(lcd_drv->DrawVLine != NULL)
{
if (LCD_SwapXY)
{
uint16_t tmp = Ypos;
Ypos = Xpos;
Xpos = tmp;
}
LCD_SetDisplayWindow(Ypos, Xpos, 1, Length);
lcd_drv->DrawVLine(DrawProp.TextColor, Ypos, Xpos, Length);
LCD_SetDisplayWindow(0, 0, BSP_LCD_GetXSize(), BSP_LCD_GetYSize());
}
else
{
for(index = 0; index < Length; index++)
{
LCD_DrawPixel(Ypos, Xpos + index, DrawProp.TextColor);
}
}
}
/**
* @brief Draws an uni-line (between two points).
* @param X1: Point 1 X position
* @param Y1: Point 1 Y position
* @param X2: Point 2 X position
* @param Y2: Point 2 Y position
*/
void BSP_LCD_DrawLine(uint16_t X1, uint16_t Y1, uint16_t X2, uint16_t Y2)
{
int16_t deltax = 0, deltay = 0, x = 0, y = 0, xinc1 = 0, xinc2 = 0,
yinc1 = 0, yinc2 = 0, den = 0, num = 0, numadd = 0, numpixels = 0,
curpixel = 0;
deltax = ABS(Y2 - Y1); /* The difference between the x's */
deltay = ABS(X2 - X1); /* The difference between the y's */
x = Y1; /* Start x off at the first pixel */
y = X1; /* Start y off at the first pixel */
if (Y2 >= Y1) /* The x-values are increasing */
{
xinc1 = 1;
xinc2 = 1;
}
else /* The x-values are decreasing */
{
xinc1 = -1;
xinc2 = -1;
}
if (X2 >= X1) /* The y-values are increasing */
{
yinc1 = 1;
yinc2 = 1;
}
else /* The y-values are decreasing */
{
yinc1 = -1;
yinc2 = -1;
}
if (deltax >= deltay) /* There is at least one x-value for every y-value */
{
xinc1 = 0; /* Don't change the x when numerator >= denominator */
yinc2 = 0; /* Don't change the y for every iteration */
den = deltax;
num = deltax / 2;
numadd = deltay;
numpixels = deltax; /* There are more x-values than y-values */
}
else /* There is at least one y-value for every x-value */
{
xinc2 = 0; /* Don't change the x for every iteration */
yinc1 = 0; /* Don't change the y when numerator >= denominator */
den = deltay;
num = deltay / 2;
numadd = deltax;
numpixels = deltay; /* There are more y-values than x-values */
}
for (curpixel = 0; curpixel <= numpixels; curpixel++)
{
LCD_DrawPixel(x, y, DrawProp.TextColor); /* Draw the current pixel */
num += numadd; /* Increase the numerator by the top of the fraction */
if (num >= den) /* Check if numerator >= denominator */
{
num -= den; /* Calculate the new numerator value */
x += xinc1; /* Change the x as appropriate */
y += yinc1; /* Change the y as appropriate */
}
x += xinc2; /* Change the x as appropriate */
y += yinc2; /* Change the y as appropriate */
}
}
/**
* @brief Draws a rectangle.
* @param Xpos: X position
* @param Ypos: Y position
* @param Width: Rectangle width
* @param Height: Rectangle height
*/
void BSP_LCD_DrawRect(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
{
/* Draw horizontal lines */
BSP_LCD_DrawHLine(Xpos, Ypos, Width);
BSP_LCD_DrawHLine(Xpos, (Ypos+ Height), Width);
/* Draw vertical lines */
BSP_LCD_DrawVLine(Xpos, Ypos, Height);
BSP_LCD_DrawVLine((Xpos + Width), Ypos, Height);
}
/**
* @brief Draws a circle.
* @param Xpos: X position
* @param Ypos: Y position
* @param Radius: Circle radius
*/
void BSP_LCD_DrawCircle(uint16_t Xpos, uint16_t Ypos, uint16_t Radius)
{
int32_t decision; /* Decision Variable */
uint32_t curx; /* Current X Value */
uint32_t cury; /* Current Y Value */
decision = 3 - (Radius << 1);
curx = 0;
cury = Radius;
while (curx <= cury)
{
LCD_DrawPixel((Ypos + curx), (Xpos - cury), DrawProp.TextColor);
LCD_DrawPixel((Ypos - curx), (Xpos - cury), DrawProp.TextColor);
LCD_DrawPixel((Ypos + cury), (Xpos - curx), DrawProp.TextColor);
LCD_DrawPixel((Ypos - cury), (Xpos - curx), DrawProp.TextColor);
LCD_DrawPixel((Ypos + curx), (Xpos + cury), DrawProp.TextColor);
LCD_DrawPixel((Ypos - curx), (Xpos + cury), DrawProp.TextColor);
LCD_DrawPixel((Ypos + cury), (Xpos + curx), DrawProp.TextColor);
LCD_DrawPixel((Ypos - cury), (Xpos + curx), DrawProp.TextColor);
/* Initialize the font */
BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
if (decision < 0)
{
decision += (curx << 2) + 6;
}
else
{
decision += ((curx - cury) << 2) + 10;
cury--;
}
curx++;
}
}
/**
* @brief Draws an poly-line (between many points).
* @param pPoints: Pointer to the points array
* @param PointCount: Number of points
*/
void BSP_LCD_DrawPolygon(pPoint pPoints, uint16_t PointCount)
{
int16_t x = 0, y = 0;
if(PointCount < 2)
{
return;
}
BSP_LCD_DrawLine(pPoints->X, pPoints->Y, (pPoints+PointCount-1)->X, (pPoints+PointCount-1)->Y);
while(--PointCount)
{
x = pPoints->X;
y = pPoints->Y;
pPoints++;
BSP_LCD_DrawLine(x, y, pPoints->X, pPoints->Y);
}
}
/**
* @brief Draws an ellipse on LCD.
* @param Xpos: X position
* @param Ypos: Y position
* @param XRadius: Ellipse X radius
* @param YRadius: Ellipse Y radius
*/
void BSP_LCD_DrawEllipse(int Xpos, int Ypos, int XRadius, int YRadius)
{
int x = 0, y = -XRadius, err = 2-2*YRadius, e2;
float k = 0, rad1 = 0, rad2 = 0;
rad1 = YRadius;
rad2 = XRadius;
k = (float)(rad2/rad1);
do {
LCD_DrawPixel((Ypos-(uint16_t)(x/k)), (Xpos+y), DrawProp.TextColor);
LCD_DrawPixel((Ypos+(uint16_t)(x/k)), (Xpos+y), DrawProp.TextColor);
LCD_DrawPixel((Ypos+(uint16_t)(x/k)), (Xpos-y), DrawProp.TextColor);
LCD_DrawPixel((Ypos-(uint16_t)(x/k)), (Xpos-y), DrawProp.TextColor);
e2 = err;
if (e2 <= x) {
err += ++x*2+1;
if (-y == x && e2 <= y) e2 = 0;
}
if (e2 > y) err += ++y*2+1;
}
while (y <= 0);
}
/**
* @brief Draws a bitmap picture loaded in the internal Flash (32 bpp).
* @param Xpos: Bmp X position in the LCD
* @param Ypos: Bmp Y position in the LCD
* @param pBmp: Pointer to Bmp picture address in the internal Flash
*/
void BSP_LCD_DrawBitmap(uint16_t Xpos, uint16_t Ypos, uint8_t *pBmp)
{
uint32_t height = 0, width = 0;
if (LCD_SwapXY)
{
uint16_t tmp = Ypos;
Ypos = Xpos;
Xpos = tmp;
}
/* Read bitmap width */
width = *(uint16_t *) (pBmp + 18);
width |= (*(uint16_t *) (pBmp + 20)) << 16;
/* Read bitmap height */
height = *(uint16_t *) (pBmp + 22);
height |= (*(uint16_t *) (pBmp + 24)) << 16;
/* Remap Ypos, hx8347d works with inverted X in case of bitmap */
/* X = 0, cursor is on Bottom corner */
if(lcd_drv == &hx8347d_drv)
{
Ypos = BSP_LCD_GetYSize() - Ypos - height;
}
LCD_SetDisplayWindow(Ypos, Xpos, width, height);
if(lcd_drv->DrawBitmap != NULL)
{
lcd_drv->DrawBitmap(Ypos, Xpos, pBmp);
}
LCD_SetDisplayWindow(0, 0, BSP_LCD_GetXSize(), BSP_LCD_GetYSize());
}
/**
* @brief Draws a full rectangle.
* @param Xpos: X position
* @param Ypos: Y position
* @param Width: Rectangle width
* @param Height: Rectangle height
*/
void BSP_LCD_FillRect(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
{
BSP_LCD_SetTextColor(DrawProp.TextColor);
do
{
BSP_LCD_DrawHLine(Xpos, Ypos++, Width);
}
while(Height--);
}
/**
* @brief Draws a full circle.
* @param Xpos: X position
* @param Ypos: Y position
* @param Radius: Circle radius
*/
void BSP_LCD_FillCircle(uint16_t Xpos, uint16_t Ypos, uint16_t Radius)
{
int32_t decision; /* Decision Variable */
uint32_t curx; /* Current X Value */
uint32_t cury; /* Current Y Value */
decision = 3 - (Radius << 1);
curx = 0;
cury = Radius;
BSP_LCD_SetTextColor(DrawProp.TextColor);
while (curx <= cury)
{
if(cury > 0)
{
BSP_LCD_DrawVLine(Xpos + curx, Ypos - cury, 2*cury);
BSP_LCD_DrawVLine(Xpos - curx, Ypos - cury, 2*cury);
}
if(curx > 0)
{
BSP_LCD_DrawVLine(Xpos - cury, Ypos - curx, 2*curx);
BSP_LCD_DrawVLine(Xpos + cury, Ypos - curx, 2*curx);
}
if (decision < 0)
{
decision += (curx << 2) + 6;
}
else
{
decision += ((curx - cury) << 2) + 10;
cury--;
}
curx++;
}
BSP_LCD_SetTextColor(DrawProp.TextColor);
BSP_LCD_DrawCircle(Xpos, Ypos, Radius);
}
/**
* @brief Fill triangle.
* @param X1: specifies the point 1 x position.
* @param Y1: specifies the point 1 y position.
* @param X2: specifies the point 2 x position.
* @param Y2: specifies the point 2 y position.
* @param X3: specifies the point 3 x position.
* @param Y3: specifies the point 3 y position.
*/
void BSP_LCD_FillTriangle(uint16_t X1, uint16_t X2, uint16_t X3, uint16_t Y1, uint16_t Y2, uint16_t Y3)
{
int16_t deltax = 0, deltay = 0, x = 0, y = 0, xinc1 = 0, xinc2 = 0,
yinc1 = 0, yinc2 = 0, den = 0, num = 0, numadd = 0, numpixels = 0,
curpixel = 0;
deltax = ABS(X2 - X1); /* The difference between the x's */
deltay = ABS(Y2 - Y1); /* The difference between the y's */
x = X1; /* Start x off at the first pixel */
y = Y1; /* Start y off at the first pixel */
if (X2 >= X1) /* The x-values are increasing */
{
xinc1 = 1;
xinc2 = 1;
}
else /* The x-values are decreasing */
{
xinc1 = -1;
xinc2 = -1;
}
if (Y2 >= Y1) /* The y-values are increasing */
{
yinc1 = 1;
yinc2 = 1;
}
else /* The y-values are decreasing */
{
yinc1 = -1;
yinc2 = -1;
}
if (deltax >= deltay) /* There is at least one x-value for every y-value */
{
xinc1 = 0; /* Don't change the x when numerator >= denominator */
yinc2 = 0; /* Don't change the y for every iteration */
den = deltax;
num = deltax / 2;
numadd = deltay;
numpixels = deltax; /* There are more x-values than y-values */
}
else /* There is at least one y-value for every x-value */
{
xinc2 = 0; /* Don't change the x for every iteration */
yinc1 = 0; /* Don't change the y when numerator >= denominator */
den = deltay;
num = deltay / 2;
numadd = deltax;
numpixels = deltay; /* There are more y-values than x-values */
}
for (curpixel = 0; curpixel <= numpixels; curpixel++)
{
BSP_LCD_DrawLine(x, y, X3, Y3);
num += numadd; /* Increase the numerator by the top of the fraction */
if (num >= den) /* Check if numerator >= denominator */
{
num -= den; /* Calculate the new numerator value */
x += xinc1; /* Change the x as appropriate */
y += yinc1; /* Change the y as appropriate */
}
x += xinc2; /* Change the x as appropriate */
y += yinc2; /* Change the y as appropriate */
}
}
/**
* @brief Displays a full poly-line (between many points).
* @param pPoints: pointer to the points array.
* @param PointCount: Number of points.
*/
void BSP_LCD_FillPolygon(pPoint pPoints, uint16_t PointCount)
{
int16_t x = 0, y = 0, x2 = 0, y2 = 0, xcenter = 0, ycenter = 0, xfirst = 0, yfirst = 0, pixelx = 0, pixely = 0, counter = 0;
uint16_t imageleft = 0, imageright = 0, imagetop = 0, imagebottom = 0;
imageleft = imageright = pPoints->X;
imagetop= imagebottom = pPoints->Y;
for(counter = 1; counter < PointCount; counter++)
{
pixelx = POLY_X(counter);
if(pixelx < imageleft)
{
imageleft = pixelx;
}
if(pixelx > imageright)
{
imageright = pixelx;
}
pixely = POLY_Y(counter);
if(pixely < imagetop)
{
imagetop = pixely;
}
if(pixely > imagebottom)
{
imagebottom = pixely;
}
}
if(PointCount < 2)
{
return;
}
xcenter = (imageleft + imageright)/2;
ycenter = (imagebottom + imagetop)/2;
xfirst = pPoints->X;
yfirst = pPoints->Y;
while(--PointCount)
{
x = pPoints->X;
y = pPoints->Y;
pPoints++;
x2 = pPoints->X;
y2 = pPoints->Y;
BSP_LCD_FillTriangle(x, x2, xcenter, y, y2, ycenter);
BSP_LCD_FillTriangle(x, xcenter, x2, y, ycenter, y2);
BSP_LCD_FillTriangle(xcenter, x2, x, ycenter, y2, y);
}
BSP_LCD_FillTriangle(xfirst, x2, xcenter, yfirst, y2, ycenter);
BSP_LCD_FillTriangle(xfirst, xcenter, x2, yfirst, ycenter, y2);
BSP_LCD_FillTriangle(xcenter, x2, xfirst, ycenter, y2, yfirst);
}
/**
* @brief Draws a full ellipse.
* @param Xpos: X position
* @param Ypos: Y position
* @param XRadius: Ellipse X radius
* @param YRadius: Ellipse Y radius
*/
void BSP_LCD_FillEllipse(int Xpos, int Ypos, int XRadius, int YRadius)
{
int x = 0, y = -XRadius, err = 2-2*YRadius, e2;
float k = 0, rad1 = 0, rad2 = 0;
rad1 = YRadius;
rad2 = XRadius;
k = (float)(rad2/rad1);
do
{
BSP_LCD_DrawVLine((Xpos+y), (Ypos-(uint16_t)(x/k)), (2*(uint16_t)(x/k) + 1));
BSP_LCD_DrawVLine((Xpos-y), (Ypos-(uint16_t)(x/k)), (2*(uint16_t)(x/k) + 1));
e2 = err;
if (e2 <= x)
{
err += ++x*2+1;
if (-y == x && e2 <= y) e2 = 0;
}
if (e2 > y) err += ++y*2+1;
}
while (y <= 0);
}
/**
* @brief Enables the display.
*/
void BSP_LCD_DisplayOn(void)
{
lcd_drv->DisplayOn();
}
/**
* @brief Disables the display.
*/
void BSP_LCD_DisplayOff(void)
{
lcd_drv->DisplayOff();
}
/**
* @}
*/
/** @addtogroup STM3210E_EVAL_LCD_Private_Functions
* @{
*/
/******************************************************************************
Static Function
*******************************************************************************/
/**
* @brief Draws a pixel on LCD.
* @param Xpos: X position
* @param Ypos: Y position
* @param RGBCode: Pixel color in RGB mode (5-6-5)
*/
static void LCD_DrawPixel(uint16_t Xpos, uint16_t Ypos, uint16_t RGBCode)
{
if (LCD_SwapXY)
{
uint16_t tmp = Ypos;
Ypos = Xpos;
Xpos = tmp;
}
if(lcd_drv->WritePixel != NULL)
{
lcd_drv->WritePixel(Xpos, Ypos, RGBCode);
}
}
/**
* @brief Draws a character on LCD.
* @param Xpos: Line where to display the character shape
* @param Ypos: Start column address
* @param pChar: Pointer to the character data
*/
static void LCD_DrawChar(uint16_t Xpos, uint16_t Ypos, const uint8_t *pChar)
{
uint32_t counterh = 0, counterw = 0, index = 0;
uint16_t height = 0, width = 0;
uint8_t offset = 0;
uint8_t *pchar = NULL;
uint32_t line = 0;
height = DrawProp.pFont->Height;
width = DrawProp.pFont->Width;
/* Fill bitmap header*/
*(uint16_t *) (bitmap + 2) = (uint16_t)(height*width*2+OFFSET_BITMAP);
*(uint16_t *) (bitmap + 4) = (uint16_t)((height*width*2+OFFSET_BITMAP)>>16);
*(uint16_t *) (bitmap + 10) = OFFSET_BITMAP;
*(uint16_t *) (bitmap + 18) = (uint16_t)(width);
*(uint16_t *) (bitmap + 20) = (uint16_t)((width)>>16);
*(uint16_t *) (bitmap + 22) = (uint16_t)(height);
*(uint16_t *) (bitmap + 24) = (uint16_t)((height)>>16);
offset = 8 *((width + 7)/8) - width ;
for(counterh = 0; counterh < height; counterh++)
{
pchar = ((uint8_t *)pChar + (width + 7)/8 * counterh);
if(((width + 7)/8) == 3)
{
line = (pchar[0]<< 16) | (pchar[1]<< 8) | pchar[2];
}
if(((width + 7)/8) == 2)
{
line = (pchar[0]<< 8) | pchar[1];
}
if(((width + 7)/8) == 1)
{
line = pchar[0];
}
for (counterw = 0; counterw < width; counterw++)
{
/* Image in the bitmap is written from the bottom to the top */
/* Need to invert image in the bitmap */
index = (((height-counterh-1)*width)+(counterw))*2+OFFSET_BITMAP;
if(line & (1 << (width- counterw + offset- 1)))
{
bitmap[index] = (uint8_t)DrawProp.TextColor;
bitmap[index+1] = (uint8_t)(DrawProp.TextColor >> 8);
}
else
{
bitmap[index] = (uint8_t)DrawProp.BackColor;
bitmap[index+1] = (uint8_t)(DrawProp.BackColor >> 8);
}
}
}
BSP_LCD_DrawBitmap(Ypos, Xpos, bitmap);
}
/**
* @brief Sets display window.
* @param Xpos: LCD X position
* @param Ypos: LCD Y position
* @param Width: LCD window width
* @param Height: LCD window height
*/
static void LCD_SetDisplayWindow(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
{
if(lcd_drv->SetDisplayWindow != NULL)
{
lcd_drv->SetDisplayWindow(Xpos, Ypos, Width, Height);
}
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
Reference in New Issue View Git Blame Copy Permalink