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stm32756g_eval_lcd.c
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/**
******************************************************************************
* @file stm32756g_eval_lcd.c
* @author MCD Application Team
* @brief This file includes the driver for Liquid Crystal Display (LCD) module
* mounted on STM32756G-EVAL and STM32746G-EVAL evaluation boards.
*
******************************************************************************
* @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.
*
******************************************************************************
@verbatim
How To use this driver:
-----------------------
- This driver is used to drive directly an LCD TFT using the LTDC controller.
- This driver selects dynamically the mounted LCD, AMPIRE 640x480 LCD mounted
on MB1063 or AMPIRE 480x272 LCD mounted on MB1046 daughter board,
and uses the adequate timing and setting for the specified LCD using
device ID of the STMPE811 mounted on MB1046 daughter board.
Driver description:
------------------
+ Initialization steps:
o Initialize the LCD using the BSP_LCD_Init() function.
o Apply the Layer configuration using the BSP_LCD_LayerDefaultInit() function.
o Select the LCD layer to be used using the BSP_LCD_SelectLayer() function.
o Enable the LCD display using the BSP_LCD_DisplayOn() function.
+ Options
o Configure and enable the colour keying functionality using the
BSP_LCD_SetColorKeying() function.
o Modify in the fly the transparency and/or the frame buffer address
using the following functions:
- BSP_LCD_SetTransparency()
- BSP_LCD_SetLayerAddress()
+ Display on LCD
o Clear the whole LCD using BSP_LCD_Clear() function or only one specified string
line using the BSP_LCD_ClearStringLine() function.
o 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.
o Display a string line on the specified position (x,y in pixel) and align mode
using the BSP_LCD_DisplayStringAtLine() function.
o Draw and fill a basic shapes (dot, line, rectangle, circle, ellipse, .. bitmap)
on LCD using the available set of functions.
@endverbatim
******************************************************************************
*/
/* Dependencies
- stm32756g_eval.c
- stm32756g_eval_sdram.c
- stm32f7xx_hal_dsi.c
- stm32f7xx_hal_ltdc.c
- stm32f7xx_hal_ltdc_ex.c
- stm32f7xx_hal_dma2d.c
- stm32f7xx_hal_rcc_ex.c
- stm32f7xx_hal_gpio.c
- stm32f7xx_hal_cortex.c
- stmpe811.c
- ampire640480.h
- ampire480272.h
- fonts.h
- font24.c
- font20.c
- font16.c
- font12.c
- font8.c"
EndDependencies */
/* Includes ------------------------------------------------------------------*/
#include "stm32756g_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 STM32756G_EVAL
* @{
*/
/** @defgroup STM32756G_EVAL_LCD STM32756G_EVAL LCD
* @{
*/
/** @defgroup STM32756G_EVAL_LCD_Private_TypesDefinitions LCD Private TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup STM32756G_EVAL_LCD_Private_Defines LCD Private Defines
* @{
*/
#define POLY_X(Z) ((int32_t)((Points + Z)->X))
#define POLY_Y(Z) ((int32_t)((Points + Z)->Y))
/**
* @}
*/
/** @defgroup STM32756G_EVAL_LCD_Private_Macros LCD Private Macros
* @{
*/
#define ABS(X) ((X) > 0 ? (X) : -(X))
/**
* @}
*/
/** @defgroup STM32756G_EVAL_LCD_Private_Variables LCD Private Variables
* @{
*/
LTDC_HandleTypeDef hLtdcEval;
static DMA2D_HandleTypeDef hDma2dEval;
static uint32_t PCLK_profile = LCD_MAX_PCLK;
/* Default LCD configuration with LCD Layer 1 */
static uint32_t ActiveLayer = 0;
static LCD_DrawPropTypeDef DrawProp[MAX_LAYER_NUMBER];
/**
* @}
*/
/** @defgroup STM32756G_EVAL_LCD_Private_FunctionPrototypes LCD Private FunctionPrototypes
* @{
*/
static void DrawChar(uint16_t Xpos, uint16_t Ypos, const uint8_t *c);
static void FillTriangle(uint16_t x1, uint16_t x2, uint16_t x3, uint16_t y1, uint16_t y2, uint16_t y3);
static void LL_FillBuffer(uint32_t LayerIndex, void *pDst, uint32_t xSize, uint32_t ySize, uint32_t OffLine, uint32_t ColorIndex);
static void LL_ConvertLineToARGB8888(void * pSrc, void *pDst, uint32_t xSize, uint32_t ColorMode);
/**
* @}
*/
/** @defgroup STM32756G_EVAL_LCD_Private_Functions LCD Private Functions
* @{
*/
/**
* @brief Initializes the LCD.
* @retval LCD state
*/
uint8_t BSP_LCD_Init(void)
{
return (BSP_LCD_InitEx(LCD_MAX_PCLK));
}
/**
* @brief Initializes the LCD.
* @param PclkConfig : pixel clock profile
* @retval LCD state
*/
uint8_t BSP_LCD_InitEx(uint32_t PclkConfig)
{
PCLK_profile = PclkConfig;
/* Select the used LCD */
/* The AMPIRE 480x272 does not contain an ID register then we check the availability
of AMPIRE 480x640 LCD using device ID of the STMPE811 mounted on MB1046 daughter board */
if(stmpe811_ts_drv.ReadID(TS_I2C_ADDRESS) == STMPE811_ID)
{
/* The AMPIRE LCD 480x272 is selected */
/* Timing Configuration */
hLtdcEval.Init.HorizontalSync = (AMPIRE480272_HSYNC - 1);
hLtdcEval.Init.VerticalSync = (AMPIRE480272_VSYNC - 1);
hLtdcEval.Init.AccumulatedHBP = (AMPIRE480272_HSYNC + AMPIRE480272_HBP - 1);
hLtdcEval.Init.AccumulatedVBP = (AMPIRE480272_VSYNC + AMPIRE480272_VBP - 1);
hLtdcEval.Init.AccumulatedActiveH = (AMPIRE480272_HEIGHT + AMPIRE480272_VSYNC + AMPIRE480272_VBP - 1);
hLtdcEval.Init.AccumulatedActiveW = (AMPIRE480272_WIDTH + AMPIRE480272_HSYNC + AMPIRE480272_HBP - 1);
hLtdcEval.Init.TotalHeigh = (AMPIRE480272_HEIGHT + AMPIRE480272_VSYNC + AMPIRE480272_VBP + AMPIRE480272_VFP - 1);
hLtdcEval.Init.TotalWidth = (AMPIRE480272_WIDTH + AMPIRE480272_HSYNC + AMPIRE480272_HBP + AMPIRE480272_HFP - 1);
/* Initialize the LCD pixel width and pixel height */
hLtdcEval.LayerCfg->ImageWidth = AMPIRE480272_WIDTH;
hLtdcEval.LayerCfg->ImageHeight = AMPIRE480272_HEIGHT;
}
else
{
/* The LCD AMPIRE 640x480 is selected */
/* Timing configuration */
hLtdcEval.Init.HorizontalSync = (AMPIRE640480_HSYNC - 1);
hLtdcEval.Init.VerticalSync = (AMPIRE640480_VSYNC - 1);
hLtdcEval.Init.AccumulatedHBP = (AMPIRE640480_HSYNC + AMPIRE640480_HBP - 1);
hLtdcEval.Init.AccumulatedVBP = (AMPIRE640480_VSYNC + AMPIRE640480_VBP - 1);
hLtdcEval.Init.AccumulatedActiveH = (AMPIRE640480_HEIGHT + AMPIRE640480_VSYNC + AMPIRE640480_VBP - 1);
hLtdcEval.Init.AccumulatedActiveW = (AMPIRE640480_WIDTH + AMPIRE640480_HSYNC + AMPIRE640480_HBP - 1);
hLtdcEval.Init.TotalHeigh = (AMPIRE640480_HEIGHT + AMPIRE640480_VSYNC + AMPIRE640480_VBP + AMPIRE640480_VFP - 1);
hLtdcEval.Init.TotalWidth = (AMPIRE640480_WIDTH + AMPIRE640480_HSYNC + AMPIRE640480_HBP + AMPIRE640480_HFP - 1);
/* Initialize the LCD pixel width and pixel height */
hLtdcEval.LayerCfg->ImageWidth = AMPIRE640480_WIDTH;
hLtdcEval.LayerCfg->ImageHeight = AMPIRE640480_HEIGHT;
}
/* Background value */
hLtdcEval.Init.Backcolor.Blue = 0;
hLtdcEval.Init.Backcolor.Green = 0;
hLtdcEval.Init.Backcolor.Red = 0;
/* Polarity */
hLtdcEval.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hLtdcEval.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hLtdcEval.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hLtdcEval.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hLtdcEval.Instance = LTDC;
/* LCD clock configuration */
BSP_LCD_ClockConfig(&hLtdcEval, &PCLK_profile);
if(HAL_LTDC_GetState(&hLtdcEval) == HAL_LTDC_STATE_RESET)
{
/* Initialize the LCD Msp: this __weak function can be rewritten by the application */
BSP_LCD_MspInit(&hLtdcEval, NULL);
}
HAL_LTDC_Init(&hLtdcEval);
#if !defined(DATA_IN_ExtSDRAM)
/* When DATA_IN_ExtSDRAM define is enabled, the SDRAM will be configured in SystemInit()
function (from system_stm32f7xx.c) before branch to main() routine. In such case, there
is no need to reconfigure the SDRAM within the LCD driver, since it's already initialized.
Otherwise the SDRAM must be configured. */
BSP_SDRAM_Init();
#endif
/* Initialize the font */
BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
return LCD_OK;
}
/**
* @brief DeInitializes the LCD.
* @retval LCD state
*/
uint8_t BSP_LCD_DeInit(void)
{
/* Initialize the hltdc_eval Instance parameter */
hLtdcEval.Instance = LTDC;
/* Disable LTDC block */
__HAL_LTDC_DISABLE(&hLtdcEval);
/* DeInit the LTDC */
HAL_LTDC_DeInit(&hLtdcEval);
/* DeInit the LTDC MSP : this __weak function can be rewritten by the application */
BSP_LCD_MspDeInit(&hLtdcEval, NULL);
return LCD_OK;
}
/**
* @brief Gets the LCD X size.
* @retval Used LCD X size
*/
uint32_t BSP_LCD_GetXSize(void)
{
return hLtdcEval.LayerCfg[ActiveLayer].ImageWidth;
}
/**
* @brief Gets the LCD Y size.
* @retval Used LCD Y size
*/
uint32_t BSP_LCD_GetYSize(void)
{
return hLtdcEval.LayerCfg[ActiveLayer].ImageHeight;
}
/**
* @brief Set the LCD X size.
* @param imageWidthPixels : image width in pixels unit
* @retval None
*/
void BSP_LCD_SetXSize(uint32_t imageWidthPixels)
{
hLtdcEval.LayerCfg[ActiveLayer].ImageWidth = imageWidthPixels;
}
/**
* @brief Set the LCD Y size.
* @param imageHeightPixels : image height in lines unit
* @retval None
*/
void BSP_LCD_SetYSize(uint32_t imageHeightPixels)
{
hLtdcEval.LayerCfg[ActiveLayer].ImageHeight = imageHeightPixels;
}
/**
* @brief Initializes the LCD layers.
* @param LayerIndex: Layer foreground or background
* @param FB_Address: Layer frame buffer
* @retval None
*/
void BSP_LCD_LayerDefaultInit(uint16_t LayerIndex, uint32_t FB_Address)
{
LCD_LayerCfgTypeDef layer_cfg;
/* Layer Init */
layer_cfg.WindowX0 = 0;
layer_cfg.WindowX1 = BSP_LCD_GetXSize();
layer_cfg.WindowY0 = 0;
layer_cfg.WindowY1 = BSP_LCD_GetYSize();
layer_cfg.PixelFormat = LTDC_PIXEL_FORMAT_ARGB8888;
layer_cfg.FBStartAdress = FB_Address;
layer_cfg.Alpha = 255;
layer_cfg.Alpha0 = 0;
layer_cfg.Backcolor.Blue = 0;
layer_cfg.Backcolor.Green = 0;
layer_cfg.Backcolor.Red = 0;
layer_cfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
layer_cfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
layer_cfg.ImageWidth = BSP_LCD_GetXSize();
layer_cfg.ImageHeight = BSP_LCD_GetYSize();
HAL_LTDC_ConfigLayer(&hLtdcEval, &layer_cfg, LayerIndex);
DrawProp[LayerIndex].BackColor = LCD_COLOR_WHITE;
DrawProp[LayerIndex].pFont = &Font24;
DrawProp[LayerIndex].TextColor = LCD_COLOR_BLACK;
}
/**
* @brief Selects the LCD Layer.
* @param LayerIndex: Layer foreground or background
* @retval None
*/
void BSP_LCD_SelectLayer(uint32_t LayerIndex)
{
ActiveLayer = LayerIndex;
}
/**
* @brief Sets an LCD Layer visible
* @param LayerIndex: Visible Layer
* @param State: New state of the specified layer
* This parameter can be one of the following values:
* @arg ENABLE
* @arg DISABLE
* @retval None
*/
void BSP_LCD_SetLayerVisible(uint32_t LayerIndex, FunctionalState State)
{
if(State == ENABLE)
{
__HAL_LTDC_LAYER_ENABLE(&hLtdcEval, LayerIndex);
}
else
{
__HAL_LTDC_LAYER_DISABLE(&hLtdcEval, LayerIndex);
}
__HAL_LTDC_RELOAD_CONFIG(&hLtdcEval);
}
/**
* @brief Sets an LCD Layer visible without reloading.
* @param LayerIndex: Visible Layer
* @param State: New state of the specified layer
* This parameter can be one of the following values:
* @arg ENABLE
* @arg DISABLE
* @retval None
*/
void BSP_LCD_SetLayerVisible_NoReload(uint32_t LayerIndex, FunctionalState State)
{
if(State == ENABLE)
{
__HAL_LTDC_LAYER_ENABLE(&hLtdcEval, LayerIndex);
}
else
{
__HAL_LTDC_LAYER_DISABLE(&hLtdcEval, LayerIndex);
}
/* Do not Sets the Reload */
}
/**
* @brief Configures the transparency.
* @param LayerIndex: Layer foreground or background.
* @param Transparency: Transparency
* This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFF
* @retval None
*/
void BSP_LCD_SetTransparency(uint32_t LayerIndex, uint8_t Transparency)
{
HAL_LTDC_SetAlpha(&hLtdcEval, Transparency, LayerIndex);
}
/**
* @brief Configures the transparency without reloading.
* @param LayerIndex: Layer foreground or background.
* @param Transparency: Transparency
* This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFF
* @retval None
*/
void BSP_LCD_SetTransparency_NoReload(uint32_t LayerIndex, uint8_t Transparency)
{
HAL_LTDC_SetAlpha_NoReload(&hLtdcEval, Transparency, LayerIndex);
}
/**
* @brief Sets an LCD layer frame buffer address.
* @param LayerIndex: Layer foreground or background
* @param Address: New LCD frame buffer value
* @retval None
*/
void BSP_LCD_SetLayerAddress(uint32_t LayerIndex, uint32_t Address)
{
HAL_LTDC_SetAddress(&hLtdcEval, Address, LayerIndex);
}
/**
* @brief Sets an LCD layer frame buffer address without reloading.
* @param LayerIndex: Layer foreground or background
* @param Address: New LCD frame buffer value
* @retval None
*/
void BSP_LCD_SetLayerAddress_NoReload(uint32_t LayerIndex, uint32_t Address)
{
HAL_LTDC_SetAddress_NoReload(&hLtdcEval, Address, LayerIndex);
}
/**
* @brief Sets display window.
* @param LayerIndex: Layer index
* @param Xpos: LCD X position
* @param Ypos: LCD Y position
* @param Width: LCD window width
* @param Height: LCD window height
* @retval None
*/
void BSP_LCD_SetLayerWindow(uint16_t LayerIndex, uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
{
/* Reconfigure the layer size */
HAL_LTDC_SetWindowSize(&hLtdcEval, Width, Height, LayerIndex);
/* Reconfigure the layer position */
HAL_LTDC_SetWindowPosition(&hLtdcEval, Xpos, Ypos, LayerIndex);
}
/**
* @brief Sets display window without reloading.
* @param LayerIndex: Layer index
* @param Xpos: LCD X position
* @param Ypos: LCD Y position
* @param Width: LCD window width
* @param Height: LCD window height
* @retval None
*/
void BSP_LCD_SetLayerWindow_NoReload(uint16_t LayerIndex, uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
{
/* Reconfigure the layer size */
HAL_LTDC_SetWindowSize_NoReload(&hLtdcEval, Width, Height, LayerIndex);
/* Reconfigure the layer position */
HAL_LTDC_SetWindowPosition_NoReload(&hLtdcEval, Xpos, Ypos, LayerIndex);
}
/**
* @brief Configures and sets the color keying.
* @param LayerIndex: Layer foreground or background
* @param RGBValue: Color reference
* @retval None
*/
void BSP_LCD_SetColorKeying(uint32_t LayerIndex, uint32_t RGBValue)
{
/* Configure and Enable the color Keying for LCD Layer */
HAL_LTDC_ConfigColorKeying(&hLtdcEval, RGBValue, LayerIndex);
HAL_LTDC_EnableColorKeying(&hLtdcEval, LayerIndex);
}
/**
* @brief Configures and sets the color keying without reloading.
* @param LayerIndex: Layer foreground or background
* @param RGBValue: Color reference
* @retval None
*/
void BSP_LCD_SetColorKeying_NoReload(uint32_t LayerIndex, uint32_t RGBValue)
{
/* Configure and Enable the color Keying for LCD Layer */
HAL_LTDC_ConfigColorKeying_NoReload(&hLtdcEval, RGBValue, LayerIndex);
HAL_LTDC_EnableColorKeying_NoReload(&hLtdcEval, LayerIndex);
}
/**
* @brief Disables the color keying.
* @param LayerIndex: Layer foreground or background
* @retval None
*/
void BSP_LCD_ResetColorKeying(uint32_t LayerIndex)
{
/* Disable the color Keying for LCD Layer */
HAL_LTDC_DisableColorKeying(&hLtdcEval, LayerIndex);
}
/**
* @brief Disables the color keying without reloading.
* @param LayerIndex: Layer foreground or background
* @retval None
*/
void BSP_LCD_ResetColorKeying_NoReload(uint32_t LayerIndex)
{
/* Disable the color Keying for LCD Layer */
HAL_LTDC_DisableColorKeying_NoReload(&hLtdcEval, LayerIndex);
}
/**
* @brief Disables the color keying without reloading.
* @param ReloadType: can be one of the following values
* - LCD_RELOAD_IMMEDIATE
* - LCD_RELOAD_VERTICAL_BLANKING
* @retval None
*/
void BSP_LCD_Relaod(uint32_t ReloadType)
{
HAL_LTDC_Reload (&hLtdcEval, ReloadType);
}
/**
* @brief Sets the LCD text color.
* @param Color: Text color code ARGB(8-8-8-8)
* @retval None
*/
void BSP_LCD_SetTextColor(uint32_t Color)
{
DrawProp[ActiveLayer].TextColor = Color;
}
/**
* @brief Gets the LCD text color.
* @retval Used text color.
*/
uint32_t BSP_LCD_GetTextColor(void)
{
return DrawProp[ActiveLayer].TextColor;
}
/**
* @brief Sets the LCD background color.
* @param Color: Layer background color code ARGB(8-8-8-8)
* @retval None
*/
void BSP_LCD_SetBackColor(uint32_t Color)
{
DrawProp[ActiveLayer].BackColor = Color;
}
/**
* @brief Gets the LCD background color.
* @retval Used background color
*/
uint32_t BSP_LCD_GetBackColor(void)
{
return DrawProp[ActiveLayer].BackColor;
}
/**
* @brief Sets the LCD text font.
* @param fonts: Layer font to be used
* @retval None
*/
void BSP_LCD_SetFont(sFONT *fonts)
{
DrawProp[ActiveLayer].pFont = fonts;
}
/**
* @brief Gets the LCD text font.
* @retval Used layer font
*/
sFONT *BSP_LCD_GetFont(void)
{
return DrawProp[ActiveLayer].pFont;
}
/**
* @brief Reads an LCD pixel.
* @param Xpos: X position
* @param Ypos: Y position
* @retval RGB pixel color
*/
uint32_t BSP_LCD_ReadPixel(uint16_t Xpos, uint16_t Ypos)
{
uint32_t ret = 0;
if(hLtdcEval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_ARGB8888)
{
/* Read data value from SDRAM memory */
ret = *(__IO uint32_t*) (hLtdcEval.LayerCfg[ActiveLayer].FBStartAdress + (4*(Ypos*BSP_LCD_GetXSize() + Xpos)));
}
else if(hLtdcEval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB888)
{
/* Read data value from SDRAM memory */
ret = (*(__IO uint32_t*) (hLtdcEval.LayerCfg[ActiveLayer].FBStartAdress + (4*(Ypos*BSP_LCD_GetXSize() + Xpos))) & 0x00FFFFFF);
}
else if((hLtdcEval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB565) || \
(hLtdcEval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_ARGB4444) || \
(hLtdcEval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_AL88))
{
/* Read data value from SDRAM memory */
ret = *(__IO uint16_t*) (hLtdcEval.LayerCfg[ActiveLayer].FBStartAdress + (2*(Ypos*BSP_LCD_GetXSize() + Xpos)));
}
else
{
/* Read data value from SDRAM memory */
ret = *(__IO uint8_t*) (hLtdcEval.LayerCfg[ActiveLayer].FBStartAdress + (2*(Ypos*BSP_LCD_GetXSize() + Xpos)));
}
return ret;
}
/**
* @brief Clears the hole LCD.
* @param Color: Color of the background
* @retval None
*/
void BSP_LCD_Clear(uint32_t Color)
{
/* Clear the LCD */
LL_FillBuffer(ActiveLayer, (uint32_t *)(hLtdcEval.LayerCfg[ActiveLayer].FBStartAdress), BSP_LCD_GetXSize(), BSP_LCD_GetYSize(), 0, Color);
}
/**
* @brief Clears the selected line.
* @param Line: Line to be cleared
* @retval None
*/
void BSP_LCD_ClearStringLine(uint32_t Line)
{
uint32_t color_backup = DrawProp[ActiveLayer].TextColor;
DrawProp[ActiveLayer].TextColor = DrawProp[ActiveLayer].BackColor;
/* Draw rectangle with background color */
BSP_LCD_FillRect(0, (Line * DrawProp[ActiveLayer].pFont->Height), BSP_LCD_GetXSize(), DrawProp[ActiveLayer].pFont->Height);
DrawProp[ActiveLayer].TextColor = color_backup;
BSP_LCD_SetTextColor(DrawProp[ActiveLayer].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
* @retval None
*/
void BSP_LCD_DisplayChar(uint16_t Xpos, uint16_t Ypos, uint8_t Ascii)
{
DrawChar(Xpos, Ypos, &DrawProp[ActiveLayer].pFont->table[(Ascii-' ') *\
DrawProp[ActiveLayer].pFont->Height * ((DrawProp[ActiveLayer].pFont->Width + 7) / 8)]);
}
/**
* @brief Displays characters on the LCD.
* @param Xpos: X position (in pixel)
* @param Ypos: Y position (in pixel)
* @param Text: 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
* @retval None
*/
void BSP_LCD_DisplayStringAt(uint16_t Xpos, uint16_t Ypos, uint8_t *Text, Text_AlignModeTypdef Mode)
{
uint16_t ref_column = 1, i = 0;
uint32_t size = 0, xsize = 0;
uint8_t *ptr = Text;
/* Get the text size */
while (*ptr++) size ++ ;
/* Characters number per line */
xsize = (BSP_LCD_GetXSize()/DrawProp[ActiveLayer].pFont->Width);
switch (Mode)
{
case CENTER_MODE:
{
ref_column = Xpos + ((xsize - size)* DrawProp[ActiveLayer].pFont->Width) / 2;
break;
}
case LEFT_MODE:
{
ref_column = Xpos;
break;
}
case RIGHT_MODE:
{
ref_column = - Xpos + ((xsize - size)*DrawProp[ActiveLayer].pFont->Width);
break;
}
default:
{
ref_column = Xpos;
break;
}
}
/* Check that the Start column is located in the screen */
if ((ref_column < 1) || (ref_column >= 0x8000))
{
ref_column = 1;
}
/* Send the string character by character on LCD */
while ((*Text != 0) & (((BSP_LCD_GetXSize() - (i*DrawProp[ActiveLayer].pFont->Width)) & 0xFFFF) >= DrawProp[ActiveLayer].pFont->Width))
{
/* Display one character on LCD */
BSP_LCD_DisplayChar(ref_column, Ypos, *Text);
/* Decrement the column position by 16 */
ref_column += DrawProp[ActiveLayer].pFont->Width;
/* Point on the next character */
Text++;
i++;
}
}
/**
* @brief Displays a maximum of 60 characters on the LCD.
* @param Line: Line where to display the character shape
* @param ptr: Pointer to string to display on LCD
* @retval None
*/
void BSP_LCD_DisplayStringAtLine(uint16_t Line, uint8_t *ptr)
{
BSP_LCD_DisplayStringAt(0, LINE(Line), ptr, LEFT_MODE);
}
/**
* @brief Draws an horizontal line.
* @param Xpos: X position
* @param Ypos: Y position
* @param Length: Line length
* @retval None
*/
void BSP_LCD_DrawHLine(uint16_t Xpos, uint16_t Ypos, uint16_t Length)
{
uint32_t Xaddress = 0;
/* Get the line address */
Xaddress = (hLtdcEval.LayerCfg[ActiveLayer].FBStartAdress) + 4*(BSP_LCD_GetXSize()*Ypos + Xpos);
/* Write line */
LL_FillBuffer(ActiveLayer, (uint32_t *)Xaddress, Length, 1, 0, DrawProp[ActiveLayer].TextColor);
}
/**
* @brief Draws a vertical line.
* @param Xpos: X position
* @param Ypos: Y position
* @param Length: Line length
* @retval None
*/
void BSP_LCD_DrawVLine(uint16_t Xpos, uint16_t Ypos, uint16_t Length)
{
uint32_t Xaddress = 0;
/* Get the line address */
Xaddress = (hLtdcEval.LayerCfg[ActiveLayer].FBStartAdress) + 4*(BSP_LCD_GetXSize()*Ypos + Xpos);
/* Write line */
LL_FillBuffer(ActiveLayer, (uint32_t *)Xaddress, 1, Length, (BSP_LCD_GetXSize() - 1), DrawProp[ActiveLayer].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
* @retval None
*/
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, num_add = 0, num_pixels = 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;
num_add = deltay;
num_pixels = 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;
num_add = deltax;
num_pixels = deltay; /* There are more y-values than x-values */
}
for (curpixel = 0; curpixel <= num_pixels; curpixel++)
{
BSP_LCD_DrawPixel(x, y, DrawProp[ActiveLayer].TextColor); /* Draw the current pixel */
num += num_add; /* 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
* @retval None
*/
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
* @retval None
*/
void BSP_LCD_DrawCircle(uint16_t Xpos, uint16_t Ypos, uint16_t Radius)
{
int32_t decision; /* Decision Variable */
uint32_t current_x; /* Current X Value */
uint32_t current_y; /* Current Y Value */
decision = 3 - (Radius << 1);
current_x = 0;
current_y = Radius;
while (current_x <= current_y)
{
BSP_LCD_DrawPixel((Xpos + current_x), (Ypos - current_y), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos - current_x), (Ypos - current_y), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos + current_y), (Ypos - current_x), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos - current_y), (Ypos - current_x), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos + current_x), (Ypos + current_y), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos - current_x), (Ypos + current_y), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos + current_y), (Ypos + current_x), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos - current_y), (Ypos + current_x), DrawProp[ActiveLayer].TextColor);
if (decision < 0)
{
decision += (current_x << 2) + 6;
}
else
{
decision += ((current_x - current_y) << 2) + 10;
current_y--;
}
current_x++;
}
}
/**
* @brief Draws an poly-line (between many points).
* @param Points: Pointer to the points array
* @param PointCount: Number of points
* @retval None
*/
void BSP_LCD_DrawPolygon(pPoint Points, uint16_t PointCount)
{
int16_t x = 0, y = 0;
if(PointCount < 2)
{
return;
}
BSP_LCD_DrawLine(Points->X, Points->Y, (Points+PointCount-1)->X, (Points+PointCount-1)->Y);
while(--PointCount)
{
x = Points->X;
y = Points->Y;
Points++;
BSP_LCD_DrawLine(x, y, Points->X, Points->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
* @retval None
*/
void BSP_LCD_DrawEllipse(int Xpos, int Ypos, int XRadius, int YRadius)
{
int x = 0, y = -YRadius, err = 2-2*XRadius, e2;
float k = 0, rad1 = 0, rad2 = 0;
rad1 = XRadius;
rad2 = YRadius;
k = (float)(rad2/rad1);
do {
BSP_LCD_DrawPixel((Xpos-(uint16_t)(x/k)), (Ypos+y), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos+(uint16_t)(x/k)), (Ypos+y), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos+(uint16_t)(x/k)), (Ypos-y), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos-(uint16_t)(x/k)), (Ypos-y), DrawProp[ActiveLayer].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 pixel on LCD.
* @param Xpos: X position
* @param Ypos: Y position
* @param RGB_Code: Pixel color in ARGB mode (8-8-8-8)
* @retval None
*/
void BSP_LCD_DrawPixel(uint16_t Xpos, uint16_t Ypos, uint32_t RGB_Code)
{
/* Write data value to all SDRAM memory */
*(__IO uint32_t*) (hLtdcEval.LayerCfg[ActiveLayer].FBStartAdress + (4*(Ypos*BSP_LCD_GetXSize() + Xpos))) = RGB_Code;
}
/**
* @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
* @retval None