/**
  ******************************************************************************
  * @file    stm32f4xx_hal_ltdc.c
  * @author  MCD Application Team
  * @version V1.4.1
  * @date    09-October-2015
  * @brief   LTDC HAL module driver.
  *          This file provides firmware functions to manage the following 
  *          functionalities of the LTDC peripheral:
  *           + Initialization and de-initialization functions
  *           + IO operation functions
  *           + Peripheral Control functions  
  *           + Peripheral State and Errors functions
  *           
  @verbatim      
  ==============================================================================
                        ##### How to use this driver #####
  ==============================================================================
    [..]
     (#) Program the required configuration through the following parameters:   
         the LTDC timing, the horizontal and vertical polarity, 
         the pixel clock polarity, Data Enable polarity and the LTDC background color value 
         using HAL_LTDC_Init() function

     (#) Program the required configuration through the following parameters:   
         the pixel format, the blending factors, input alpha value, the window size 
         and the image size using HAL_LTDC_ConfigLayer() function for foreground
         or/and background layer.     
  
     (#) Optionally, configure and enable the CLUT using HAL_LTDC_ConfigCLUT() and 
         HAL_LTDC_EnableCLUT functions.
       
     (#) Optionally, enable the Dither using HAL_LTDC_EnableDither().       

     (#) Optionally, configure and enable the Color keying using HAL_LTDC_ConfigColorKeying()
         and HAL_LTDC_EnableColorKeying functions.

     (#) Optionally, configure LineInterrupt using HAL_LTDC_ProgramLineEvent()
         function

     (#) If needed, reconfigure and change the pixel format value, the alpha value
         value, the window size, the window position and the layer start address 
         for foreground or/and background layer using respectively the following 
         functions: HAL_LTDC_SetPixelFormat(), HAL_LTDC_SetAlpha(), HAL_LTDC_SetWindowSize(),
         HAL_LTDC_SetWindowPosition(), HAL_LTDC_SetAddress.
                     
     (#) To control LTDC state you can use the following function: HAL_LTDC_GetState()               

     *** LTDC HAL driver macros list ***
     ============================================= 
     [..]
       Below the list of most used macros in LTDC HAL driver.
       
      (+) __HAL_LTDC_ENABLE: Enable the LTDC.
      (+) __HAL_LTDC_DISABLE: Disable the LTDC.
      (+) __HAL_LTDC_LAYER_ENABLE: Enable the LTDC Layer.
      (+) __HAL_LTDC_LAYER_DISABLE: Disable the LTDC Layer.
      (+) __HAL_LTDC_RELOAD_CONFIG: Reload  Layer Configuration.
      (+) __HAL_LTDC_GET_FLAG: Get the LTDC pending flags.
      (+) __HAL_LTDC_CLEAR_FLAG: Clear the LTDC pending flags.
      (+) __HAL_LTDC_ENABLE_IT: Enable the specified LTDC interrupts. 
      (+) __HAL_LTDC_DISABLE_IT: Disable the specified LTDC interrupts.
      (+) __HAL_LTDC_GET_IT_SOURCE: Check whether the specified LTDC interrupt has occurred or not.
      
     [..] 
       (@) You can refer to the LTDC HAL driver header file for more useful macros
  
  @endverbatim
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */ 

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"

/** @addtogroup STM32F4xx_HAL_Driver
  * @{
  */
/** @defgroup LTDC LTDC
  * @brief LTDC HAL module driver
  * @{
  */

#ifdef HAL_LTDC_MODULE_ENABLED

#if defined(STM32F429xx) || defined(STM32F439xx) || defined(STM32F469xx) || defined(STM32F479xx)

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/    
/* Private function prototypes -----------------------------------------------*/
static void LTDC_SetConfig(LTDC_HandleTypeDef *hltdc, LTDC_LayerCfgTypeDef *pLayerCfg, uint32_t LayerIdx);
/* Private functions ---------------------------------------------------------*/

/** @defgroup LTDC_Exported_Functions LTDC Exported Functions
  * @{
  */

/** @defgroup LTDC_Exported_Functions_Group1 Initialization and Configuration functions
 *  @brief   Initialization and Configuration functions
 *
@verbatim   
 ===============================================================================
                ##### Initialization and Configuration functions #####
 ===============================================================================  
    [..]  This section provides functions allowing to:
      (+) Initialize and configure the LTDC
      (+) De-initialize the LTDC 

@endverbatim
  * @{
  */
  
/**
  * @brief  Initializes the LTDC according to the specified
  *         parameters in the LTDC_InitTypeDef and create the associated handle.
  * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
  *                the configuration information for the LTDC.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LTDC_Init(LTDC_HandleTypeDef *hltdc)
{
  uint32_t tmp = 0, tmp1 = 0;

  /* Check the LTDC peripheral state */
  if(hltdc == NULL)
  {
    return HAL_ERROR;
  }

  /* Check function parameters */
  assert_param(IS_LTDC_ALL_INSTANCE(hltdc->Instance));
  assert_param(IS_LTDC_HSYNC(hltdc->Init.HorizontalSync));
  assert_param(IS_LTDC_VSYNC(hltdc->Init.VerticalSync));
  assert_param(IS_LTDC_AHBP(hltdc->Init.AccumulatedHBP));
  assert_param(IS_LTDC_AVBP(hltdc->Init.AccumulatedVBP));
  assert_param(IS_LTDC_AAH(hltdc->Init.AccumulatedActiveH));
  assert_param(IS_LTDC_AAW(hltdc->Init.AccumulatedActiveW));
  assert_param(IS_LTDC_TOTALH(hltdc->Init.TotalHeigh));
  assert_param(IS_LTDC_TOTALW(hltdc->Init.TotalWidth));
  assert_param(IS_LTDC_HSPOL(hltdc->Init.HSPolarity));
  assert_param(IS_LTDC_VSPOL(hltdc->Init.VSPolarity));
  assert_param(IS_LTDC_DEPOL(hltdc->Init.DEPolarity));
  assert_param(IS_LTDC_PCPOL(hltdc->Init.PCPolarity));

  if(hltdc->State == HAL_LTDC_STATE_RESET)
  {
    /* Allocate lock resource and initialize it */
    hltdc->Lock = HAL_UNLOCKED;
    /* Init the low level hardware */
    HAL_LTDC_MspInit(hltdc);
  }
  
  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;

  /* Configures the HS, VS, DE and PC polarity */
  hltdc->Instance->GCR &= ~(LTDC_GCR_HSPOL | LTDC_GCR_VSPOL | LTDC_GCR_DEPOL | LTDC_GCR_PCPOL);
  hltdc->Instance->GCR |=  (uint32_t)(hltdc->Init.HSPolarity | hltdc->Init.VSPolarity | \
  hltdc->Init.DEPolarity | hltdc->Init.PCPolarity);

  /* Sets Synchronization size */
  hltdc->Instance->SSCR &= ~(LTDC_SSCR_VSH | LTDC_SSCR_HSW);
  tmp = (hltdc->Init.HorizontalSync << 16);
  hltdc->Instance->SSCR |= (tmp | hltdc->Init.VerticalSync);

  /* Sets Accumulated Back porch */
  hltdc->Instance->BPCR &= ~(LTDC_BPCR_AVBP | LTDC_BPCR_AHBP);
  tmp = (hltdc->Init.AccumulatedHBP << 16);
  hltdc->Instance->BPCR |= (tmp | hltdc->Init.AccumulatedVBP);

  /* Sets Accumulated Active Width */
  hltdc->Instance->AWCR &= ~(LTDC_AWCR_AAH | LTDC_AWCR_AAW);
  tmp = (hltdc->Init.AccumulatedActiveW << 16);
  hltdc->Instance->AWCR |= (tmp | hltdc->Init.AccumulatedActiveH);

  /* Sets Total Width */
  hltdc->Instance->TWCR &= ~(LTDC_TWCR_TOTALH | LTDC_TWCR_TOTALW);
  tmp = (hltdc->Init.TotalWidth << 16);
  hltdc->Instance->TWCR |= (tmp | hltdc->Init.TotalHeigh);

  /* Sets the background color value */
  tmp = ((uint32_t)(hltdc->Init.Backcolor.Green) << 8);
  tmp1 = ((uint32_t)(hltdc->Init.Backcolor.Red) << 16);
  hltdc->Instance->BCCR &= ~(LTDC_BCCR_BCBLUE | LTDC_BCCR_BCGREEN | LTDC_BCCR_BCRED);
  hltdc->Instance->BCCR |= (tmp1 | tmp | hltdc->Init.Backcolor.Blue);

  /* Enable the transfer Error interrupt */
  __HAL_LTDC_ENABLE_IT(hltdc, LTDC_IT_TE);

  /* Enable the FIFO underrun interrupt */
  __HAL_LTDC_ENABLE_IT(hltdc, LTDC_IT_FU);

  /* Enable LTDC by setting LTDCEN bit */
  __HAL_LTDC_ENABLE(hltdc);

  /* Initialize the error code */
  hltdc->ErrorCode = HAL_LTDC_ERROR_NONE;  

  /* Initialize the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY;

  return HAL_OK;
}

/**
  * @brief  Deinitializes the LTDC peripheral registers to their default reset
  *         values.
  * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
  *                the configuration information for the LTDC.
  * @retval None
  */

HAL_StatusTypeDef HAL_LTDC_DeInit(LTDC_HandleTypeDef *hltdc)
{
  /* DeInit the low level hardware */
  HAL_LTDC_MspDeInit(hltdc); 

  /* Initialize the error code */
  hltdc->ErrorCode = HAL_LTDC_ERROR_NONE;

  /* Initialize the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_RESET;

  /* Release Lock */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;
}

/**
  * @brief  Initializes the LTDC MSP.
  * @param  hltdc : pointer to a LTDC_HandleTypeDef structure that contains
  *                the configuration information for the LTDC.
  * @retval None
  */
__weak void HAL_LTDC_MspInit(LTDC_HandleTypeDef* hltdc)
{
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_LTDC_MspInit could be implemented in the user file
   */ 
}

/**
  * @brief  DeInitializes the LTDC MSP.
  * @param  hltdc : pointer to a LTDC_HandleTypeDef structure that contains
  *                the configuration information for the LTDC.
  * @retval None
  */
__weak void HAL_LTDC_MspDeInit(LTDC_HandleTypeDef* hltdc)
{
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_LTDC_MspDeInit could be implemented in the user file
   */
}

/**
  * @}
  */
  
/** @defgroup LTDC_Exported_Functions_Group2 IO operation functions 
 *  @brief   IO operation functions  
 *
@verbatim
 ===============================================================================
                      #####  IO operation functions  #####
 ===============================================================================  
    [..]  This section provides function allowing to:
      (+) Handle LTDC interrupt request

@endverbatim
  * @{
  */
/**
  * @brief  Handles LTDC interrupt request.
  * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
  *                the configuration information for the LTDC.  
  * @retval HAL status
  */
void HAL_LTDC_IRQHandler(LTDC_HandleTypeDef *hltdc)
{
  /* Transfer Error Interrupt management ***************************************/
  if(__HAL_LTDC_GET_FLAG(hltdc, LTDC_FLAG_TE) != RESET)
  {
    if(__HAL_LTDC_GET_IT_SOURCE(hltdc, LTDC_IT_TE) != RESET)
    {
      /* Disable the transfer Error interrupt */
      __HAL_LTDC_DISABLE_IT(hltdc, LTDC_IT_TE);

      /* Clear the transfer error flag */
      __HAL_LTDC_CLEAR_FLAG(hltdc, LTDC_FLAG_TE);

      /* Update error code */
      hltdc->ErrorCode |= HAL_LTDC_ERROR_TE;

      /* Change LTDC state */
      hltdc->State = HAL_LTDC_STATE_ERROR;

      /* Process unlocked */
      __HAL_UNLOCK(hltdc);

      /* Transfer error Callback */
      HAL_LTDC_ErrorCallback(hltdc);
    }
  }
  /* FIFO underrun Interrupt management ***************************************/
  if(__HAL_LTDC_GET_FLAG(hltdc, LTDC_FLAG_FU) != RESET)
  {
    if(__HAL_LTDC_GET_IT_SOURCE(hltdc, LTDC_IT_FU) != RESET)
    {
      /* Disable the FIFO underrun interrupt */
      __HAL_LTDC_DISABLE_IT(hltdc, LTDC_IT_FU);

      /* Clear the FIFO underrun flag */
      __HAL_LTDC_CLEAR_FLAG(hltdc, LTDC_FLAG_FU);

      /* Update error code */
      hltdc->ErrorCode |= HAL_LTDC_ERROR_FU;

      /* Change LTDC state */
      hltdc->State = HAL_LTDC_STATE_ERROR;

      /* Process unlocked */
      __HAL_UNLOCK(hltdc);
      
      /* Transfer error Callback */
      HAL_LTDC_ErrorCallback(hltdc);
    }
  }
  /* Line Interrupt management ************************************************/
  if(__HAL_LTDC_GET_FLAG(hltdc, LTDC_FLAG_LI) != RESET)
  {
    if(__HAL_LTDC_GET_IT_SOURCE(hltdc, LTDC_IT_LI) != RESET)
    {
      /* Disable the Line interrupt */
      __HAL_LTDC_DISABLE_IT(hltdc, LTDC_IT_LI);

      /* Clear the Line interrupt flag */  
      __HAL_LTDC_CLEAR_FLAG(hltdc, LTDC_FLAG_LI);

      /* Change LTDC state */
      hltdc->State = HAL_LTDC_STATE_READY;

      /* Process unlocked */
      __HAL_UNLOCK(hltdc);

      /* Line interrupt Callback */
      HAL_LTDC_LineEventCallback(hltdc);
    }
  }
}

/**
  * @brief  Error LTDC callback.
  * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
  *                the configuration information for the LTDC.
  * @retval None
  */
__weak void HAL_LTDC_ErrorCallback(LTDC_HandleTypeDef *hltdc)
{
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_LTDC_ErrorCallback could be implemented in the user file
   */
}

/**
  * @brief  Line Event callback.
  * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
  *                the configuration information for the LTDC.
  * @retval None
  */
__weak void HAL_LTDC_LineEventCallback(LTDC_HandleTypeDef *hltdc)
{
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_LTDC_LineEventCallback could be implemented in the user file
   */
}

/**
  * @}
  */

/** @defgroup LTDC_Exported_Functions_Group3 Peripheral Control functions
 *  @brief    Peripheral Control functions 
 *
@verbatim   
 ===============================================================================
                    ##### Peripheral Control functions #####
 ===============================================================================  
    [..]  This section provides functions allowing to:
      (+) Configure the LTDC foreground or/and background parameters.
      (+) Set the active layer.
      (+) Configure the color keying.
      (+) Configure the C-LUT.
      (+) Enable / Disable the color keying.
      (+) Enable / Disable the C-LUT.
      (+) Update the layer position.
      (+) Update the layer size.
      (+) Update pixel format on the fly. 
      (+) Update transparency on the fly.
      (+) Update address on the fly.

@endverbatim
  * @{
  */

/**
  * @brief  Configure the LTDC Layer according to the specified
  *         parameters in the LTDC_InitTypeDef and create the associated handle.
  * @param  hltdc:     pointer to a LTDC_HandleTypeDef structure that contains
  *                    the configuration information for the LTDC.
  * @param  pLayerCfg: pointer to a LTDC_LayerCfgTypeDef structure that contains
  *                    the configuration information for the Layer.
  * @param  LayerIdx:  LTDC Layer index.
  *                    This parameter can be one of the following values:
  *                    0 or 1
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LTDC_ConfigLayer(LTDC_HandleTypeDef *hltdc, LTDC_LayerCfgTypeDef *pLayerCfg, uint32_t LayerIdx)
{   
  /* Process locked */
  __HAL_LOCK(hltdc);
  
  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;

  /* Check the parameters */
  assert_param(IS_LTDC_LAYER(LayerIdx));
  assert_param(IS_LTDC_PIXEL_FORMAT(pLayerCfg->PixelFormat));
  assert_param(IS_LTDC_BLENDING_FACTOR1(pLayerCfg->BlendingFactor1));
  assert_param(IS_LTDC_BLENDING_FACTOR2(pLayerCfg->BlendingFactor2));
  assert_param(IS_LTDC_HCONFIGST(pLayerCfg->WindowX0));
  assert_param(IS_LTDC_HCONFIGSP(pLayerCfg->WindowX1));
  assert_param(IS_LTDC_VCONFIGST(pLayerCfg->WindowY0));
  assert_param(IS_LTDC_VCONFIGSP(pLayerCfg->WindowY1));
  assert_param(IS_LTDC_ALPHA(pLayerCfg->Alpha0));
  assert_param(IS_LTDC_CFBLL(pLayerCfg->ImageWidth));
  assert_param(IS_LTDC_CFBLNBR(pLayerCfg->ImageHeight));

  /* Copy new layer configuration into handle structure */
  hltdc->LayerCfg[LayerIdx] = *pLayerCfg;  

  /* Configure the LTDC Layer */  
  LTDC_SetConfig(hltdc, pLayerCfg, LayerIdx);

  /* Sets the Reload type */
  hltdc->Instance->SRCR = LTDC_SRCR_IMR;

  /* Initialize the LTDC state*/
  hltdc->State  = HAL_LTDC_STATE_READY;

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;
}

/**
  * @brief  Configure the color keying.
  * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
  *                   the configuration information for the LTDC.
  * @param  RGBValue: the color key value
  * @param  LayerIdx:  LTDC Layer index.
  *                   This parameter can be one of the following values:
  *                   0 or 1
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LTDC_ConfigColorKeying(LTDC_HandleTypeDef *hltdc, uint32_t RGBValue, uint32_t LayerIdx)
{
  /* Process locked */
  __HAL_LOCK(hltdc);

  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;

  /* Check the parameters */
  assert_param(IS_LTDC_LAYER(LayerIdx));

  /* Configures the default color values */
  LTDC_LAYER(hltdc, LayerIdx)->CKCR &=  ~(LTDC_LxCKCR_CKBLUE | LTDC_LxCKCR_CKGREEN | LTDC_LxCKCR_CKRED);
  LTDC_LAYER(hltdc, LayerIdx)->CKCR  = RGBValue;

  /* Sets the Reload type */
  hltdc->Instance->SRCR = LTDC_SRCR_IMR;

  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY;

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;
}

/**
  * @brief  Load the color lookup table.
  * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
  *                   the configuration information for the LTDC.
  * @param  pCLUT:    pointer to the color lookup table address.
  * @param  CLUTSize: the color lookup table size.  
  * @param  LayerIdx:  LTDC Layer index.
  *                   This parameter can be one of the following values:
  *                   0 or 1
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LTDC_ConfigCLUT(LTDC_HandleTypeDef *hltdc, uint32_t *pCLUT, uint32_t CLUTSize, uint32_t LayerIdx)
{
  uint32_t tmp = 0;
  uint32_t counter = 0;
  uint32_t pcounter = 0;

  /* Process locked */
  __HAL_LOCK(hltdc);

  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;  

  /* Check the parameters */
  assert_param(IS_LTDC_LAYER(LayerIdx)); 

  for(counter = 0; (counter < CLUTSize); counter++)
  {
    if(hltdc->LayerCfg[LayerIdx].PixelFormat == LTDC_PIXEL_FORMAT_AL44)
    {
      tmp  = (((counter + 16*counter) << 24) | ((uint32_t)(*pCLUT) & 0xFF) | ((uint32_t)(*pCLUT) & 0xFF00) | ((uint32_t)(*pCLUT) & 0xFF0000));
    }
    else
    { 
      tmp  = ((counter << 24) | ((uint32_t)(*pCLUT) & 0xFF) | ((uint32_t)(*pCLUT) & 0xFF00) | ((uint32_t)(*pCLUT) & 0xFF0000));
    }
    pcounter = (uint32_t)pCLUT + sizeof(*pCLUT);
    pCLUT = (uint32_t *)pcounter;

    /* Specifies the C-LUT address and RGB value */
    LTDC_LAYER(hltdc, LayerIdx)->CLUTWR  = tmp;
  }
  
  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY; 

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);  

  return HAL_OK;
}

/**
  * @brief  Enable the color keying.
  * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
  *                   the configuration information for the LTDC.
  * @param  LayerIdx:  LTDC Layer index.
  *                   This parameter can be one of the following values:
  *                   0 or 1
  * @retval  HAL status
  */
HAL_StatusTypeDef HAL_LTDC_EnableColorKeying(LTDC_HandleTypeDef *hltdc, uint32_t LayerIdx)
{  
  /* Process locked */
  __HAL_LOCK(hltdc);

  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;

  /* Check the parameters */
  assert_param(IS_LTDC_LAYER(LayerIdx));

  /* Enable LTDC color keying by setting COLKEN bit */
  LTDC_LAYER(hltdc, LayerIdx)->CR |= (uint32_t)LTDC_LxCR_COLKEN;

  /* Sets the Reload type */
  hltdc->Instance->SRCR = LTDC_SRCR_IMR;

  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY; 

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;  
}
  
/**
  * @brief  Disable the color keying.
  * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
  *                   the configuration information for the LTDC.
  * @param  LayerIdx:  LTDC Layer index.
  *                   This parameter can be one of the following values:
  *                   0 or 1
  * @retval  HAL status
  */
HAL_StatusTypeDef HAL_LTDC_DisableColorKeying(LTDC_HandleTypeDef *hltdc, uint32_t LayerIdx)
{
  /* Process locked */
  __HAL_LOCK(hltdc);

  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;

  /* Check the parameters */
  assert_param(IS_LTDC_LAYER(LayerIdx));

  /* Disable LTDC color keying by setting COLKEN bit */
  LTDC_LAYER(hltdc, LayerIdx)->CR &= ~(uint32_t)LTDC_LxCR_COLKEN;

  /* Sets the Reload type */
  hltdc->Instance->SRCR = LTDC_SRCR_IMR;

  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY; 

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;
}

/**
  * @brief  Enable the color lookup table.
  * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
  *                   the configuration information for the LTDC.
  * @param  LayerIdx:  LTDC Layer index.
  *                   This parameter can be one of the following values:
  *                   0 or 1
  * @retval  HAL status
  */
HAL_StatusTypeDef HAL_LTDC_EnableCLUT(LTDC_HandleTypeDef *hltdc, uint32_t LayerIdx)
{

  /* Process locked */
  __HAL_LOCK(hltdc);

  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;

  /* Check the parameters */
  assert_param(IS_LTDC_LAYER(LayerIdx));

  /* Disable LTDC color lookup table by setting CLUTEN bit */
  LTDC_LAYER(hltdc, LayerIdx)->CR |= (uint32_t)LTDC_LxCR_CLUTEN;

  /* Sets the Reload type */
  hltdc->Instance->SRCR = LTDC_SRCR_IMR;

  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY; 

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;
}

/**
  * @brief  Disable the color lookup table.
  * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
  *                   the configuration information for the LTDC.
  * @param  LayerIdx:  LTDC Layer index.
  *                   This parameter can be one of the following values:
  *                   0 or 1   
  * @retval  HAL status
  */
HAL_StatusTypeDef HAL_LTDC_DisableCLUT(LTDC_HandleTypeDef *hltdc, uint32_t LayerIdx)
{
 
  /* Process locked */
  __HAL_LOCK(hltdc);

  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;

  /* Check the parameters */
  assert_param(IS_LTDC_LAYER(LayerIdx));

  /* Disable LTDC color lookup table by setting CLUTEN bit */
  LTDC_LAYER(hltdc, LayerIdx)->CR &= ~(uint32_t)LTDC_LxCR_CLUTEN;

  /* Sets the Reload type */
  hltdc->Instance->SRCR = LTDC_SRCR_IMR;

  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY; 

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;
}

/**
  * @brief  Enables Dither.
  * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
  *                the configuration information for the LTDC.
  * @retval  HAL status
  */

HAL_StatusTypeDef HAL_LTDC_EnableDither(LTDC_HandleTypeDef *hltdc)
{
  /* Process locked */
  __HAL_LOCK(hltdc);

  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;

  /* Enable Dither by setting DTEN bit */
  LTDC->GCR |= (uint32_t)LTDC_GCR_DTEN;

  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY; 

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;
}

/**
  * @brief  Disables Dither.
  * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
  *                the configuration information for the LTDC.
  * @retval  HAL status
  */

HAL_StatusTypeDef HAL_LTDC_DisableDither(LTDC_HandleTypeDef *hltdc)
{
  /* Process locked */
  __HAL_LOCK(hltdc);

  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;

  /* Disable Dither by setting DTEN bit */
  LTDC->GCR &= ~(uint32_t)LTDC_GCR_DTEN;

  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY;

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;
}

/**
  * @brief  Set the LTDC window size.
  * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
  *                   the configuration information for the LTDC.
  * @param  XSize:    LTDC Pixel per line
  * @param  YSize:    LTDC Line number
  * @param  LayerIdx:  LTDC Layer index.
  *                   This parameter can be one of the following values:
  *                   0 or 1
  * @retval  HAL status
  */
HAL_StatusTypeDef HAL_LTDC_SetWindowSize(LTDC_HandleTypeDef *hltdc, uint32_t XSize, uint32_t YSize, uint32_t LayerIdx) 
{
  LTDC_LayerCfgTypeDef *pLayerCfg;

  /* Process locked */
  __HAL_LOCK(hltdc);

  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY; 

  /* Get layer configuration from handle structure */
  pLayerCfg = &hltdc->LayerCfg[LayerIdx];

  /* Check the parameters (Layers parameters)*/
  assert_param(IS_LTDC_LAYER(LayerIdx));
  assert_param(IS_LTDC_HCONFIGST(pLayerCfg->WindowX0));
  assert_param(IS_LTDC_HCONFIGSP(pLayerCfg->WindowX1));
  assert_param(IS_LTDC_VCONFIGST(pLayerCfg->WindowY0));
  assert_param(IS_LTDC_VCONFIGSP(pLayerCfg->WindowY1));
  assert_param(IS_LTDC_CFBLL(XSize));
  assert_param(IS_LTDC_CFBLNBR(YSize));

  /* update horizontal start/stop */
  pLayerCfg->WindowX0 = 0;
  pLayerCfg->WindowX1 = XSize + pLayerCfg->WindowX0;

  /* update vertical start/stop */  
  pLayerCfg->WindowY0 = 0;
  pLayerCfg->WindowY1 = YSize + pLayerCfg->WindowY0;

  /* Reconfigures the color frame buffer pitch in byte */
  pLayerCfg->ImageWidth = XSize;

  /* Reconfigures the frame buffer line number */
  pLayerCfg->ImageHeight = YSize;

  /* Set LTDC parameters */
  LTDC_SetConfig(hltdc, pLayerCfg, LayerIdx);

  /* Sets the Reload type */
  hltdc->Instance->SRCR = LTDC_SRCR_IMR;

  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY;

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;
}

/**
  * @brief  Set the LTDC window position.
  * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
  *                   the configuration information for the LTDC.
  * @param  X0:       LTDC window X offset
  * @param  Y0:       LTDC window Y offset
  * @param  LayerIdx:  LTDC Layer index.
  *                         This parameter can be one of the following values:
  *                         0 or 1
  * @retval  HAL status
  */
HAL_StatusTypeDef HAL_LTDC_SetWindowPosition(LTDC_HandleTypeDef *hltdc, uint32_t X0, uint32_t Y0, uint32_t LayerIdx)
{
  LTDC_LayerCfgTypeDef *pLayerCfg;
  
  /* Process locked */
  __HAL_LOCK(hltdc);

  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;

  /* Get layer configuration from handle structure */
  pLayerCfg = &hltdc->LayerCfg[LayerIdx];

  /* Check the parameters */
  assert_param(IS_LTDC_LAYER(LayerIdx));
  assert_param(IS_LTDC_HCONFIGST(pLayerCfg->WindowX0));
  assert_param(IS_LTDC_HCONFIGSP(pLayerCfg->WindowX1));
  assert_param(IS_LTDC_VCONFIGST(pLayerCfg->WindowY0));
  assert_param(IS_LTDC_VCONFIGSP(pLayerCfg->WindowY1));

  /* update horizontal start/stop */
  pLayerCfg->WindowX0 = X0;
  pLayerCfg->WindowX1 = X0 + pLayerCfg->ImageWidth;

  /* update vertical start/stop */
  pLayerCfg->WindowY0 = Y0;
  pLayerCfg->WindowY1 = Y0 + pLayerCfg->ImageHeight;

  /* Set LTDC parameters */
  LTDC_SetConfig(hltdc, pLayerCfg, LayerIdx);

  /* Sets the Reload type */
  hltdc->Instance->SRCR = LTDC_SRCR_VBR;

  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY;

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;
}

/**
  * @brief  Reconfigure the pixel format.
  * @param  hltdc:       pointer to a LTDC_HandleTypeDef structure that contains
  *                      the configuration information for the LTDC.
  * @param  Pixelformat: new pixel format value.
  * @param  LayerIdx:    LTDC Layer index.
  *                      This parameter can be one of the following values:
  *                      0 or 1.
  * @retval  HAL status
  */
HAL_StatusTypeDef HAL_LTDC_SetPixelFormat(LTDC_HandleTypeDef *hltdc, uint32_t Pixelformat, uint32_t LayerIdx)
{
  LTDC_LayerCfgTypeDef *pLayerCfg;

  /* Process locked */
  __HAL_LOCK(hltdc);

  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;

  /* Check the parameters */
  assert_param(IS_LTDC_LAYER(LayerIdx));
  assert_param(IS_LTDC_PIXEL_FORMAT(Pixelformat));

  /* Get layer configuration from handle structure */
  pLayerCfg = &hltdc->LayerCfg[LayerIdx];  

  /* Reconfigure the pixel format */
  pLayerCfg->PixelFormat = Pixelformat;

  /* Set LTDC parameters */
  LTDC_SetConfig(hltdc, pLayerCfg, LayerIdx);   

  /* Sets the Reload type */
  hltdc->Instance->SRCR = LTDC_SRCR_IMR;

  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY;

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;
}

/**
  * @brief  Reconfigure the layer alpha value.
  * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
  *                   the configuration information for the LTDC.
  * @param  Alpha:    new alpha value.
  * @param  LayerIdx:  LTDC Layer index.
  *                   This parameter can be one of the following values:
  *                   0 or 1
  * @retval  HAL status
  */
HAL_StatusTypeDef HAL_LTDC_SetAlpha(LTDC_HandleTypeDef *hltdc, uint32_t Alpha, uint32_t LayerIdx)
{
  LTDC_LayerCfgTypeDef *pLayerCfg;

  /* Process locked */
  __HAL_LOCK(hltdc);

  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;

  /* Check the parameters */
  assert_param(IS_LTDC_ALPHA(Alpha));
  assert_param(IS_LTDC_LAYER(LayerIdx));

  /* Get layer configuration from handle structure */
  pLayerCfg = &hltdc->LayerCfg[LayerIdx];

  /* Reconfigure the Alpha value */
  pLayerCfg->Alpha = Alpha;

  /* Set LTDC parameters */
  LTDC_SetConfig(hltdc, pLayerCfg, LayerIdx);

  /* Sets the Reload type */
  hltdc->Instance->SRCR = LTDC_SRCR_IMR;

  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY;

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;
}
/**
  * @brief  Reconfigure the frame buffer Address.
  * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
  *                   the configuration information for the LTDC.
  * @param  Address:  new address value.
  * @param  LayerIdx: LTDC Layer index.
  *                   This parameter can be one of the following values:
  *                   0 or 1.
  * @retval  HAL status
  */
HAL_StatusTypeDef HAL_LTDC_SetAddress(LTDC_HandleTypeDef *hltdc, uint32_t Address, uint32_t LayerIdx)
{
  LTDC_LayerCfgTypeDef *pLayerCfg;

  /* Process locked */
  __HAL_LOCK(hltdc);

  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;

  /* Check the parameters */
  assert_param(IS_LTDC_LAYER(LayerIdx));

  /* Get layer configuration from handle structure */
  pLayerCfg = &hltdc->LayerCfg[LayerIdx];

  /* Reconfigure the Address */
  pLayerCfg->FBStartAdress = Address;

  /* Set LTDC parameters */
  LTDC_SetConfig(hltdc, pLayerCfg, LayerIdx);

  /* Sets the Reload type */
  hltdc->Instance->SRCR = LTDC_SRCR_IMR;

  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY;

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;
}

/**
  * @brief  Function used to reconfigure the pitch for specific cases where the attached LayerIdx buffer have a width that is
  *         larger than the one intended to be displayed on screen. Example of a buffer 800x480 attached to layer for which we 
  *         want to read and display on screen only a portion 320x240 taken in the center of the buffer. The pitch in pixels 
  *         will be in that case 800 pixels and not 320 pixels as initially configured by previous call to HAL_LTDC_ConfigLayer().
  *         Note : this function should be called only after a previous call to HAL_LTDC_ConfigLayer() to modify the default pitch
  *                configured by HAL_LTDC_ConfigLayer() when required (refer to example described just above).
  * @param  hltdc:             pointer to a LTDC_HandleTypeDef structure that contains
  *                            the configuration information for the LTDC.
  * @param  LinePitchInPixels: New line pitch in pixels to configure for LTDC layer 'LayerIdx'.
  * @param  LayerIdx:          LTDC layer index concerned by the modification of line pitch.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LTDC_SetPitch(LTDC_HandleTypeDef *hltdc, uint32_t LinePitchInPixels, uint32_t LayerIdx)
{
  uint32_t tmp = 0;
  uint32_t pitchUpdate = 0;
  uint32_t pixelFormat = 0;
  
  /* Process locked */
  __HAL_LOCK(hltdc);
  
  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;
  
  /* Check the parameters */
  assert_param(IS_LTDC_LAYER(LayerIdx));
  
  /* get LayerIdx used pixel format */
  pixelFormat = hltdc->LayerCfg[LayerIdx].PixelFormat;
  
  if(pixelFormat == LTDC_PIXEL_FORMAT_ARGB8888)
  {
    tmp = 4;
  }
  else if (pixelFormat == LTDC_PIXEL_FORMAT_RGB888)
  {
    tmp = 3;
  }
  else if((pixelFormat == LTDC_PIXEL_FORMAT_ARGB4444) || \
          (pixelFormat == LTDC_PIXEL_FORMAT_RGB565)   || \
          (pixelFormat == LTDC_PIXEL_FORMAT_ARGB1555) || \
         (pixelFormat == LTDC_PIXEL_FORMAT_AL88))
  {
    tmp = 2;
  }
  else
  {
    tmp = 1;
  }
  
  pitchUpdate = ((LinePitchInPixels * tmp) << 16);
  
  /* Clear previously set standard pitch */
  LTDC_LAYER(hltdc, LayerIdx)->CFBLR &= ~LTDC_LxCFBLR_CFBP;
  
  /* Sets the Reload type as immediate update of LTDC pitch configured above */
  LTDC->SRCR |= LTDC_SRCR_IMR;
  
  /* Set new line pitch value */
  LTDC_LAYER(hltdc, LayerIdx)->CFBLR |= pitchUpdate;
  
  /* Sets the Reload type as immediate update of LTDC pitch configured above */
  LTDC->SRCR |= LTDC_SRCR_IMR;
  
  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY;
  
  /* Process unlocked */
  __HAL_UNLOCK(hltdc);
  
  return HAL_OK;  
}

/**
  * @brief  Define the position of the line interrupt .
  * @param  hltdc:             pointer to a LTDC_HandleTypeDef structure that contains
  *                            the configuration information for the LTDC.
  * @param  Line:   Line Interrupt Position.
  * @retval  HAL status
  */
HAL_StatusTypeDef HAL_LTDC_ProgramLineEvent(LTDC_HandleTypeDef *hltdc, uint32_t Line)
{
  /* Process locked */
  __HAL_LOCK(hltdc);

  /* Change LTDC peripheral state */
  hltdc->State = HAL_LTDC_STATE_BUSY;

  /* Check the parameters */
  assert_param(IS_LTDC_LIPOS(Line));

  /* Enable the Line interrupt */
  __HAL_LTDC_ENABLE_IT(hltdc, LTDC_IT_LI);

  /* Sets the Line Interrupt position */
  LTDC->LIPCR = (uint32_t)Line;

  /* Change the LTDC state*/
  hltdc->State = HAL_LTDC_STATE_READY;

  /* Process unlocked */
  __HAL_UNLOCK(hltdc);

  return HAL_OK;
}

/**
  * @}
  */

/** @defgroup LTDC_Exported_Functions_Group4 Peripheral State and Errors functions
 *  @brief    Peripheral State and Errors functions 
 *
@verbatim   
 ===============================================================================
                  ##### Peripheral State and Errors functions #####
 ===============================================================================  
    [..]
    This subsection provides functions allowing to
      (+) Check the LTDC state.
      (+) Get error code.  

@endverbatim
  * @{
  */ 

/**
  * @brief  Return the LTDC state
  * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
  *                the configuration information for the LTDC.
  * @retval HAL state
  */
HAL_LTDC_StateTypeDef HAL_LTDC_GetState(LTDC_HandleTypeDef *hltdc)
{
  return hltdc->State;
}

/**
* @brief  Return the LTDC error code
* @param  hltdc : pointer to a LTDC_HandleTypeDef structure that contains
  *               the configuration information for the LTDC.
* @retval LTDC Error Code
*/
uint32_t HAL_LTDC_GetError(LTDC_HandleTypeDef *hltdc)
{
  return hltdc->ErrorCode;
}

/**
  * @}
  */

/**
  * @brief  Configures the LTDC peripheral 
  * @param  hltdc   :  Pointer to a LTDC_HandleTypeDef structure that contains
  *                   the configuration information for the LTDC.
  * @param  pLayerCfg: Pointer LTDC Layer Configuration structure
  * @param  LayerIdx:  LTDC Layer index.
  *                    This parameter can be one of the following values: 0 or 1
  * @retval None
  */
static void LTDC_SetConfig(LTDC_HandleTypeDef *hltdc, LTDC_LayerCfgTypeDef *pLayerCfg, uint32_t LayerIdx)
{
  uint32_t tmp = 0;
  uint32_t tmp1 = 0;
  uint32_t tmp2 = 0;

  /* Configures the horizontal start and stop position */
  tmp = ((pLayerCfg->WindowX1 + ((hltdc->Instance->BPCR & LTDC_BPCR_AHBP) >> 16)) << 16);
  LTDC_LAYER(hltdc, LayerIdx)->WHPCR &= ~(LTDC_LxWHPCR_WHSTPOS | LTDC_LxWHPCR_WHSPPOS);
  LTDC_LAYER(hltdc, LayerIdx)->WHPCR = ((pLayerCfg->WindowX0 + ((hltdc->Instance->BPCR & LTDC_BPCR_AHBP) >> 16) + 1) | tmp);

  /* Configures the vertical start and stop position */
  tmp = ((pLayerCfg->WindowY1 + (hltdc->Instance->BPCR & LTDC_BPCR_AVBP)) << 16);
  LTDC_LAYER(hltdc, LayerIdx)->WVPCR &= ~(LTDC_LxWVPCR_WVSTPOS | LTDC_LxWVPCR_WVSPPOS);
  LTDC_LAYER(hltdc, LayerIdx)->WVPCR  = ((pLayerCfg->WindowY0 + (hltdc->Instance->BPCR & LTDC_BPCR_AVBP) + 1) | tmp);  

  /* Specifies the pixel format */
  LTDC_LAYER(hltdc, LayerIdx)->PFCR &= ~(LTDC_LxPFCR_PF);
  LTDC_LAYER(hltdc, LayerIdx)->PFCR = (pLayerCfg->PixelFormat);

  /* Configures the default color values */
  tmp = ((uint32_t)(pLayerCfg->Backcolor.Green) << 8);
  tmp1 = ((uint32_t)(pLayerCfg->Backcolor.Red) << 16);
  tmp2 = (pLayerCfg->Alpha0 << 24);  
  LTDC_LAYER(hltdc, LayerIdx)->DCCR &= ~(LTDC_LxDCCR_DCBLUE | LTDC_LxDCCR_DCGREEN | LTDC_LxDCCR_DCRED | LTDC_LxDCCR_DCALPHA);
  LTDC_LAYER(hltdc, LayerIdx)->DCCR = (pLayerCfg->Backcolor.Blue | tmp | tmp1 | tmp2); 

  /* Specifies the constant alpha value */
  LTDC_LAYER(hltdc, LayerIdx)->CACR &= ~(LTDC_LxCACR_CONSTA);
  LTDC_LAYER(hltdc, LayerIdx)->CACR = (pLayerCfg->Alpha);

  /* Specifies the blending factors */
  LTDC_LAYER(hltdc, LayerIdx)->BFCR &= ~(LTDC_LxBFCR_BF2 | LTDC_LxBFCR_BF1);
  LTDC_LAYER(hltdc, LayerIdx)->BFCR = (pLayerCfg->BlendingFactor1 | pLayerCfg->BlendingFactor2);

  /* Configures the color frame buffer start address */
  LTDC_LAYER(hltdc, LayerIdx)->CFBAR &= ~(LTDC_LxCFBAR_CFBADD);
  LTDC_LAYER(hltdc, LayerIdx)->CFBAR = (pLayerCfg->FBStartAdress);

  if(pLayerCfg->PixelFormat == LTDC_PIXEL_FORMAT_ARGB8888)
  {
    tmp = 4;
  }
  else if (pLayerCfg->PixelFormat == LTDC_PIXEL_FORMAT_RGB888)
  {
    tmp = 3;
  }
  else if((pLayerCfg->PixelFormat == LTDC_PIXEL_FORMAT_ARGB4444) || \
    (pLayerCfg->PixelFormat == LTDC_PIXEL_FORMAT_RGB565)   || \
      (pLayerCfg->PixelFormat == LTDC_PIXEL_FORMAT_ARGB1555) || \
        (pLayerCfg->PixelFormat == LTDC_PIXEL_FORMAT_AL88))
  {
    tmp = 2;
  }
  else
  {
    tmp = 1;
  }

  /* Configures the color frame buffer pitch in byte */
  LTDC_LAYER(hltdc, LayerIdx)->CFBLR  &= ~(LTDC_LxCFBLR_CFBLL | LTDC_LxCFBLR_CFBP);
  LTDC_LAYER(hltdc, LayerIdx)->CFBLR  = (((pLayerCfg->ImageWidth * tmp) << 16) | (((pLayerCfg->WindowX1 - pLayerCfg->WindowX0) * tmp)  + 3));

  /* Configures the frame buffer line number */
  LTDC_LAYER(hltdc, LayerIdx)->CFBLNR  &= ~(LTDC_LxCFBLNR_CFBLNBR);
  LTDC_LAYER(hltdc, LayerIdx)->CFBLNR  = (pLayerCfg->ImageHeight);

  /* Enable LTDC_Layer by setting LEN bit */  
  LTDC_LAYER(hltdc, LayerIdx)->CR |= (uint32_t)LTDC_LxCR_LEN;
}

/**
  * @}
  */
#endif /* STM32F429xx || STM32F439xx  || STM32F469xx || STM32F479xx */
#endif /* HAL_LTDC_MODULE_ENABLED */
/**
  * @}
  */

/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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<a id='n1175' href='#n1175'>1175</a>
<a id='n1176' href='#n1176'>1176</a>
<a id='n1177' href='#n1177'>1177</a>
<a id='n1178' href='#n1178'>1178</a>
<a id='n1179' href='#n1179'>1179</a>
<a id='n1180' href='#n1180'>1180</a>
<a id='n1181' href='#n1181'>1181</a>
<a id='n1182' href='#n1182'>1182</a>
<a id='n1183' href='#n1183'>1183</a>
<a id='n1184' href='#n1184'>1184</a>
<a id='n1185' href='#n1185'>1185</a>
<a id='n1186' href='#n1186'>1186</a>
<a id='n1187' href='#n1187'>1187</a>
<a id='n1188' href='#n1188'>1188</a>
<a id='n1189' href='#n1189'>1189</a>
<a id='n1190' href='#n1190'>1190</a>
<a id='n1191' href='#n1191'>1191</a>
<a id='n1192' href='#n1192'>1192</a>
<a id='n1193' href='#n1193'>1193</a>
<a id='n1194' href='#n1194'>1194</a>
<a id='n1195' href='#n1195'>1195</a>
<a id='n1196' href='#n1196'>1196</a>
<a id='n1197' href='#n1197'>1197</a>
<a id='n1198' href='#n1198'>1198</a>
<a id='n1199' href='#n1199'>1199</a>
<a id='n1200' href='#n1200'>1200</a>
<a id='n1201' href='#n1201'>1201</a>
<a id='n1202' href='#n1202'>1202</a>
<a id='n1203' href='#n1203'>1203</a>
<a id='n1204' href='#n1204'>1204</a>
<a id='n1205' href='#n1205'>1205</a>
<a id='n1206' href='#n1206'>1206</a>
<a id='n1207' href='#n1207'>1207</a>
<a id='n1208' href='#n1208'>1208</a>
<a id='n1209' href='#n1209'>1209</a>
<a id='n1210' href='#n1210'>1210</a>
<a id='n1211' href='#n1211'>1211</a>
<a id='n1212' href='#n1212'>1212</a>
<a id='n1213' href='#n1213'>1213</a>
<a id='n1214' href='#n1214'>1214</a>
<a id='n1215' href='#n1215'>1215</a>
<a id='n1216' href='#n1216'>1216</a>
<a id='n1217' href='#n1217'>1217</a>
<a id='n1218' href='#n1218'>1218</a>
<a id='n1219' href='#n1219'>1219</a>
<a id='n1220' href='#n1220'>1220</a>
<a id='n1221' href='#n1221'>1221</a>
<a id='n1222' href='#n1222'>1222</a>
<a id='n1223' href='#n1223'>1223</a>
<a id='n1224' href='#n1224'>1224</a>
<a id='n1225' href='#n1225'>1225</a>
<a id='n1226' href='#n1226'>1226</a>
<a id='n1227' href='#n1227'>1227</a>
<a id='n1228' href='#n1228'>1228</a>
<a id='n1229' href='#n1229'>1229</a>
<a id='n1230' href='#n1230'>1230</a>
<a id='n1231' href='#n1231'>1231</a>
<a id='n1232' href='#n1232'>1232</a>
<a id='n1233' href='#n1233'>1233</a>
<a id='n1234' href='#n1234'>1234</a>
<a id='n1235' href='#n1235'>1235</a>
<a id='n1236' href='#n1236'>1236</a>
<a id='n1237' href='#n1237'>1237</a>
<a id='n1238' href='#n1238'>1238</a>
<a id='n1239' href='#n1239'>1239</a>
<a id='n1240' href='#n1240'>1240</a>
<a id='n1241' href='#n1241'>1241</a>
<a id='n1242' href='#n1242'>1242</a>
<a id='n1243' href='#n1243'>1243</a>
<a id='n1244' href='#n1244'>1244</a>
<a id='n1245' href='#n1245'>1245</a>
<a id='n1246' href='#n1246'>1246</a>
<a id='n1247' href='#n1247'>1247</a>
<a id='n1248' href='#n1248'>1248</a>
<a id='n1249' href='#n1249'>1249</a>
<a id='n1250' href='#n1250'>1250</a>
<a id='n1251' href='#n1251'>1251</a>
<a id='n1252' href='#n1252'>1252</a>
<a id='n1253' href='#n1253'>1253</a>
<a id='n1254' href='#n1254'>1254</a>
<a id='n1255' href='#n1255'>1255</a>
<a id='n1256' href='#n1256'>1256</a>
<a id='n1257' href='#n1257'>1257</a>
<a id='n1258' href='#n1258'>1258</a>
<a id='n1259' href='#n1259'>1259</a>
<a id='n1260' href='#n1260'>1260</a>
<a id='n1261' href='#n1261'>1261</a>
<a id='n1262' href='#n1262'>1262</a>
<a id='n1263' href='#n1263'>1263</a>
<a id='n1264' href='#n1264'>1264</a>
<a id='n1265' href='#n1265'>1265</a>
<a id='n1266' href='#n1266'>1266</a>
<a id='n1267' href='#n1267'>1267</a>
<a id='n1268' href='#n1268'>1268</a>
<a id='n1269' href='#n1269'>1269</a>
<a id='n1270' href='#n1270'>1270</a>
<a id='n1271' href='#n1271'>1271</a>
<a id='n1272' href='#n1272'>1272</a>
<a id='n1273' href='#n1273'>1273</a>
<a id='n1274' href='#n1274'>1274</a>
<a id='n1275' href='#n1275'>1275</a>
<a id='n1276' href='#n1276'>1276</a>
<a id='n1277' href='#n1277'>1277</a>
<a id='n1278' href='#n1278'>1278</a>
<a id='n1279' href='#n1279'>1279</a>
<a id='n1280' href='#n1280'>1280</a>
<a id='n1281' href='#n1281'>1281</a>
<a id='n1282' href='#n1282'>1282</a>
<a id='n1283' href='#n1283'>1283</a>
<a id='n1284' href='#n1284'>1284</a>
<a id='n1285' href='#n1285'>1285</a>
<a id='n1286' href='#n1286'>1286</a>
<a id='n1287' href='#n1287'>1287</a>
<a id='n1288' href='#n1288'>1288</a>
<a id='n1289' href='#n1289'>1289</a>
<a id='n1290' href='#n1290'>1290</a>
<a id='n1291' href='#n1291'>1291</a>
<a id='n1292' href='#n1292'>1292</a>
<a id='n1293' href='#n1293'>1293</a>
<a id='n1294' href='#n1294'>1294</a>
<a id='n1295' href='#n1295'>1295</a>
<a id='n1296' href='#n1296'>1296</a>
<a id='n1297' href='#n1297'>1297</a>
<a id='n1298' href='#n1298'>1298</a>
<a id='n1299' href='#n1299'>1299</a>
<a id='n1300' href='#n1300'>1300</a>
<a id='n1301' href='#n1301'>1301</a>
<a id='n1302' href='#n1302'>1302</a>
<a id='n1303' href='#n1303'>1303</a>
<a id='n1304' href='#n1304'>1304</a>
<a id='n1305' href='#n1305'>1305</a>
<a id='n1306' href='#n1306'>1306</a>
<a id='n1307' href='#n1307'>1307</a>
<a id='n1308' href='#n1308'>1308</a>
<a id='n1309' href='#n1309'>1309</a>
<a id='n1310' href='#n1310'>1310</a>
<a id='n1311' href='#n1311'>1311</a>
<a id='n1312' href='#n1312'>1312</a>
<a id='n1313' href='#n1313'>1313</a>
<a id='n1314' href='#n1314'>1314</a>
<a id='n1315' href='#n1315'>1315</a>
<a id='n1316' href='#n1316'>1316</a>
<a id='n1317' href='#n1317'>1317</a>
<a id='n1318' href='#n1318'>1318</a>
<a id='n1319' href='#n1319'>1319</a>
<a id='n1320' href='#n1320'>1320</a>
<a id='n1321' href='#n1321'>1321</a>
<a id='n1322' href='#n1322'>1322</a>
<a id='n1323' href='#n1323'>1323</a>
<a id='n1324' href='#n1324'>1324</a>
<a id='n1325' href='#n1325'>1325</a>
<a id='n1326' href='#n1326'>1326</a>
<a id='n1327' href='#n1327'>1327</a>
<a id='n1328' href='#n1328'>1328</a>
<a id='n1329' href='#n1329'>1329</a>
<a id='n1330' href='#n1330'>1330</a>
<a id='n1331' href='#n1331'>1331</a>
<a id='n1332' href='#n1332'>1332</a>
<a id='n1333' href='#n1333'>1333</a>
<a id='n1334' href='#n1334'>1334</a>
<a id='n1335' href='#n1335'>1335</a>
<a id='n1336' href='#n1336'>1336</a>
<a id='n1337' href='#n1337'>1337</a>
<a id='n1338' href='#n1338'>1338</a>
<a id='n1339' href='#n1339'>1339</a>
<a id='n1340' href='#n1340'>1340</a>
<a id='n1341' href='#n1341'>1341</a>
<a id='n1342' href='#n1342'>1342</a>
<a id='n1343' href='#n1343'>1343</a>
<a id='n1344' href='#n1344'>1344</a>
<a id='n1345' href='#n1345'>1345</a>
<a id='n1346' href='#n1346'>1346</a>
<a id='n1347' href='#n1347'>1347</a>
<a id='n1348' href='#n1348'>1348</a>
<a id='n1349' href='#n1349'>1349</a>
<a id='n1350' href='#n1350'>1350</a>
<a id='n1351' href='#n1351'>1351</a>
<a id='n1352' href='#n1352'>1352</a>
<a id='n1353' href='#n1353'>1353</a>
<a id='n1354' href='#n1354'>1354</a>
<a id='n1355' href='#n1355'>1355</a>
<a id='n1356' href='#n1356'>1356</a>
<a id='n1357' href='#n1357'>1357</a>
<a id='n1358' href='#n1358'>1358</a>
<a id='n1359' href='#n1359'>1359</a>
<a id='n1360' href='#n1360'>1360</a>
<a id='n1361' href='#n1361'>1361</a>
<a id='n1362' href='#n1362'>1362</a>
<a id='n1363' href='#n1363'>1363</a>
<a id='n1364' href='#n1364'>1364</a>
<a id='n1365' href='#n1365'>1365</a>
<a id='n1366' href='#n1366'>1366</a>
<a id='n1367' href='#n1367'>1367</a>
<a id='n1368' href='#n1368'>1368</a>
<a id='n1369' href='#n1369'>1369</a>
<a id='n1370' href='#n1370'>1370</a>
<a id='n1371' href='#n1371'>1371</a>
<a id='n1372' href='#n1372'>1372</a>
<a id='n1373' href='#n1373'>1373</a>
<a id='n1374' href='#n1374'>1374</a>
<a id='n1375' href='#n1375'>1375</a>
<a id='n1376' href='#n1376'>1376</a>
<a id='n1377' href='#n1377'>1377</a>
<a id='n1378' href='#n1378'>1378</a>
<a id='n1379' href='#n1379'>1379</a>
<a id='n1380' href='#n1380'>1380</a>
<a id='n1381' href='#n1381'>1381</a>
<a id='n1382' href='#n1382'>1382</a>
<a id='n1383' href='#n1383'>1383</a>
<a id='n1384' href='#n1384'>1384</a>
<a id='n1385' href='#n1385'>1385</a>
<a id='n1386' href='#n1386'>1386</a>
<a id='n1387' href='#n1387'>1387</a>
<a id='n1388' href='#n1388'>1388</a>
<a id='n1389' href='#n1389'>1389</a>
<a id='n1390' href='#n1390'>1390</a>
<a id='n1391' href='#n1391'>1391</a>
<a id='n1392' href='#n1392'>1392</a>
<a id='n1393' href='#n1393'>1393</a>
<a id='n1394' href='#n1394'>1394</a>
<a id='n1395' href='#n1395'>1395</a>
<a id='n1396' href='#n1396'>1396</a>
<a id='n1397' href='#n1397'>1397</a>
<a id='n1398' href='#n1398'>1398</a>
<a id='n1399' href='#n1399'>1399</a>
<a id='n1400' href='#n1400'>1400</a>
<a id='n1401' href='#n1401'>1401</a>
<a id='n1402' href='#n1402'>1402</a>
<a id='n1403' href='#n1403'>1403</a>
<a id='n1404' href='#n1404'>1404</a>
<a id='n1405' href='#n1405'>1405</a>
<a id='n1406' href='#n1406'>1406</a>
<a id='n1407' href='#n1407'>1407</a>
<a id='n1408' href='#n1408'>1408</a>
<a id='n1409' href='#n1409'>1409</a>
<a id='n1410' href='#n1410'>1410</a>
<a id='n1411' href='#n1411'>1411</a>
<a id='n1412' href='#n1412'>1412</a>
<a id='n1413' href='#n1413'>1413</a>
<a id='n1414' href='#n1414'>1414</a>
<a id='n1415' href='#n1415'>1415</a>
<a id='n1416' href='#n1416'>1416</a>
<a id='n1417' href='#n1417'>1417</a>
<a id='n1418' href='#n1418'>1418</a>
<a id='n1419' href='#n1419'>1419</a>
<a id='n1420' href='#n1420'>1420</a>
<a id='n1421' href='#n1421'>1421</a>
<a id='n1422' href='#n1422'>1422</a>
<a id='n1423' href='#n1423'>1423</a>
<a id='n1424' href='#n1424'>1424</a>
<a id='n1425' href='#n1425'>1425</a>
<a id='n1426' href='#n1426'>1426</a>
<a id='n1427' href='#n1427'>1427</a>
<a id='n1428' href='#n1428'>1428</a>
<a id='n1429' href='#n1429'>1429</a>
<a id='n1430' href='#n1430'>1430</a>
<a id='n1431' href='#n1431'>1431</a>
<a id='n1432' href='#n1432'>1432</a>
<a id='n1433' href='#n1433'>1433</a>
<a id='n1434' href='#n1434'>1434</a>
<a id='n1435' href='#n1435'>1435</a>
<a id='n1436' href='#n1436'>1436</a>
<a id='n1437' href='#n1437'>1437</a>
<a id='n1438' href='#n1438'>1438</a>
<a id='n1439' href='#n1439'>1439</a>
<a id='n1440' href='#n1440'>1440</a>
<a id='n1441' href='#n1441'>1441</a>
<a id='n1442' href='#n1442'>1442</a>
<a id='n1443' href='#n1443'>1443</a>
<a id='n1444' href='#n1444'>1444</a>
<a id='n1445' href='#n1445'>1445</a>
<a id='n1446' href='#n1446'>1446</a>
<a id='n1447' href='#n1447'>1447</a>
<a id='n1448' href='#n1448'>1448</a>
<a id='n1449' href='#n1449'>1449</a>
<a id='n1450' href='#n1450'>1450</a>
<a id='n1451' href='#n1451'>1451</a>
<a id='n1452' href='#n1452'>1452</a>
<a id='n1453' href='#n1453'>1453</a>
<a id='n1454' href='#n1454'>1454</a>
<a id='n1455' href='#n1455'>1455</a>
<a id='n1456' href='#n1456'>1456</a>
<a id='n1457' href='#n1457'>1457</a>
<a id='n1458' href='#n1458'>1458</a>
<a id='n1459' href='#n1459'>1459</a>
<a id='n1460' href='#n1460'>1460</a>
<a id='n1461' href='#n1461'>1461</a>
<a id='n1462' href='#n1462'>1462</a>
<a id='n1463' href='#n1463'>1463</a>
<a id='n1464' href='#n1464'>1464</a>
<a id='n1465' href='#n1465'>1465</a>
<a id='n1466' href='#n1466'>1466</a>
<a id='n1467' href='#n1467'>1467</a>
<a id='n1468' href='#n1468'>1468</a>
<a id='n1469' href='#n1469'>1469</a>
<a id='n1470' href='#n1470'>1470</a>
<a id='n1471' href='#n1471'>1471</a>
<a id='n1472' href='#n1472'>1472</a>
<a id='n1473' href='#n1473'>1473</a>
<a id='n1474' href='#n1474'>1474</a>
<a id='n1475' href='#n1475'>1475</a>
<a id='n1476' href='#n1476'>1476</a>
<a id='n1477' href='#n1477'>1477</a>
<a id='n1478' href='#n1478'>1478</a>
<a id='n1479' href='#n1479'>1479</a>
<a id='n1480' href='#n1480'>1480</a>
<a id='n1481' href='#n1481'>1481</a>
<a id='n1482' href='#n1482'>1482</a>
</pre></td>
<td class='lines'><pre><code>