Config文件夹
Config 文件夹是显示配置文件包。在 Config 文件夹下，有 GUIConf.c、GUIConf.h、
LCDConfig.c、LCDConfig.h 及 SIMConfig.c 文件，其中前三个文件在实际的嵌入式平台是
非常重要的，它们分别起到了分配存储空间、裁剪 emWin 功能模块和 LCD 底层驱动实现。
而 LCDConfig.h 文件没有内容，SIMConfig.c 文件是 VS2010 仿真环境需求的一些特定设置，
在此我们不作探讨。关于 GUIConf.c、GUIConf.h 与 LCDConfig.c 文件的内容见代码清单
首先看下windows GUIConf.c
#include "GUI.h"
/*********************************************************************
*
* Defines
*
**********************************************************************
*/
//
// Define the available number of bytes available for the GUI
//
#define GUI_NUMBYTES 0x400000
//
// Define the average block size
//
#define GUI_BLOCKSIZE 0x80
/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* GUI_X_Config
*
* Purpose:
* Called during the initialization process in order to set up the
* available memory for the GUI.
*/
void GUI_X_Config(void) {
//
// 32 bit aligned memory area
//
static U32 aMemory[GUI_NUMBYTES / 4];
//
// Assign memory to emWin
//
GUI_ALLOC_AssignMemory(aMemory, GUI_NUMBYTES);
GUI_ALLOC_SetAvBlockSize(GUI_BLOCKSIZE);
}
F7环境下的GUIConf.c代码
/*********************************************************************
* Portions COPYRIGHT 2015 STMicroelectronics *
* Portions SEGGER Microcontroller GmbH & Co. KG *
* Solutions for real time microcontroller applications *
**********************************************************************
* *
* (c) 1996 - 2015 SEGGER Microcontroller GmbH & Co. KG *
* *
* Internet: www.segger.com Support: support@segger.com *
* *
**********************************************************************
** emWin V5.28 - Graphical user interface for embedded applications **
All Intellectual Property rights in the Software belongs to SEGGER.
emWin is protected by international copyright laws. Knowledge of the
source code may not be used to write a similar product. This file may
only be used in accordance with the following terms:
The software has been licensed to STMicroelectronics International
N.V. a Dutch company with a Swiss branch and its headquarters in Plan-
les-Ouates, Geneva, 39 Chemin du Champ des Filles, Switzerland for the
purposes of creating libraries for ARM Cortex-M-based 32-bit microcon_
troller products commercialized by Licensee only, sublicensed and dis_
tributed under the terms and conditions of the End User License Agree_
ment supplied by STMicroelectronics International N.V.
Full source code is available at: www.segger.com
We appreciate your understanding and fairness.
----------------------------------------------------------------------
File : GUIConf.c
Purpose : Display controller initialization
---------------------------END-OF-HEADER------------------------------
*/
/**
******************************************************************************
* @attention
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define the available number of bytes available for the GUI */
#define GUI_NUMBYTES (128) * 1024
U32 aMemory[GUI_NUMBYTES / 4];
/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* GUI_X_Config
*
* Purpose:
* Called during the initialization process in order to set up the
* available memory for the GUI.
*/
void GUI_X_Config(void)
{
GUI_ALLOC_AssignMemory(aMemory, GUI_NUMBYTES);
}
GUIConfig.h代码
/*********************************************************************
* SEGGER Microcontroller GmbH & Co. KG *
* Solutions for real time microcontroller applications *
**********************************************************************
* *
* (c) 1996 - 2013 SEGGER Microcontroller GmbH & Co. KG *
* *
* Internet: www.segger.com Support: support@segger.com *
* *
**********************************************************************
** emWin V5.22 - Graphical user interface for embedded applications **
emWin is protected by international copyright laws. Knowledge of the
source code may not be used to write a similar product. This file may
only be used in accordance with a license and should not be re-
distributed in any way. We appreciate your understanding and fairness.
----------------------------------------------------------------------
File : GUIConf.h
Purpose : Configuration of available features and default values
----------------------------------------------------------------------
*/
#ifndef GUICONF_H
#define GUICONF_H
/*********************************************************************
*
* Multi layer/display support
*/
#define GUI_NUM_LAYERS 16 // Maximum number of available layers
/*********************************************************************
*
* Multi tasking support
*/
#define GUI_OS (1) // Compile with multitasking support
/*********************************************************************
*
* Configuration of available packages
*/
#define GUI_SUPPORT_TOUCH (1) // Support a touch screen (req. win-manager)
#define GUI_SUPPORT_MOUSE (1) // Support a mouse
#define GUI_WINSUPPORT (1) // Window manager package available
#define GUI_SUPPORT_MEMDEV (1) // Memory devices available
/*********************************************************************
*
* Configuration of window manager
*/
#define WM_SUPPORT_NOTIFY_VIS_CHANGED (1) // Enable sending of WM_NOTIFY_VIS_CHANGED messages
/*********************************************************************
*
* Default font
*/
#define GUI_DEFAULT_FONT &GUI_Font6x8
#endif /* Avoid multiple inclusion */
/*************************** End of file ****************************/
/*********************************************************************
* SEGGER Microcontroller GmbH & Co. KG *
* Solutions for real time microcontroller applications *
**********************************************************************
* *
* (c) 1996 - 2013 SEGGER Microcontroller GmbH & Co. KG *
* *
* Internet: www.segger.com Support: support@segger.com *
* *
**********************************************************************
** emWin V5.22 - Graphical user interface for embedded applications **
emWin is protected by international copyright laws. Knowledge of the
source code may not be used to write a similar product. This file may
only be used in accordance with a license and should not be re-
distributed in any way. We appreciate your understanding and fairness.
----------------------------------------------------------------------
File : LCDConf.c
Purpose : Display controller configuration (single layer)
---------------------------END-OF-HEADER------------------------------
*/
#ifndef XSIZE_PHYS
#error Physical X size of display is not defined!
#endif
#ifndef YSIZE_PHYS
#error Physical Y size of display is not defined!
#endif
#ifndef COLOR_CONVERSION
#error Color conversion not defined!
#endif
#ifndef DISPLAY_DRIVER
#error No display driver defined!
#endif
/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* LCD_X_Config
*
* Purpose:
* Called during the initialization process in order to set up the
* display driver configuration.
*
*/
void LCD_X_Config(void) {
//
// Set display driver and color conversion for 1st layer
//
GUI_DEVICE_CreateAndLink(DISPLAY_DRIVER, COLOR_CONVERSION, 0, 0);
//
// Display driver configuration, required for Lin-driver
//
LCD_SetSizeEx (0, XSIZE_PHYS, YSIZE_PHYS);
LCD_SetVSizeEx (0, VXSIZE_PHYS, VYSIZE_PHYS);
LCD_SetVRAMAddrEx(0, (void *)VRAM_ADDR);
//
// Set user palette data (only required if no fixed palette is used)
//
#if defined(PALETTE)
LCD_SetLUTEx(0, PALETTE);
#endif
}
/*********************************************************************
*
* LCD_X_DisplayDriver
*
* Purpose:
* This function is called by the display driver for several purposes.
* To support the according task the routine needs to be adapted to
* the display controller. Please note that the commands marked with
* 'optional' are not cogently required and should only be adapted if
* the display controller supports these features.
*
* Parameter:
* LayerIndex - Index of layer to be configured
* Cmd - Please refer to the details in the switch statement below
* pData - Pointer to a LCD_X_DATA structure
*
* Return Value:
* < -1 - Error
* -1 - Command not handled
* 0 - Ok
*/
int LCD_X_DisplayDriver(unsigned LayerIndex, unsigned Cmd, void * pData) {
int r;
switch (Cmd) {
//
// Required
//
case LCD_X_INITCONTROLLER: {
//
// Called during the initialization process in order to set up the
// display controller and put it into operation. If the display
// controller is not initialized by any external routine this needs
// to be adapted by the customer...
//
// ...
return 0;
}
case LCD_X_SETVRAMADDR: {
//
// Required for setting the address of the video RAM for drivers
// with memory mapped video RAM which is passed in the 'pVRAM' element of p
//
LCD_X_SETVRAMADDR_INFO * p;
p = (LCD_X_SETVRAMADDR_INFO *)pData;
//...
return 0;
}
case LCD_X_SETORG: {
//
// Required for setting the display origin which is passed in the 'xPos' and 'yPos' element of p
//
LCD_X_SETORG_INFO * p;
p = (LCD_X_SETORG_INFO *)pData;
//...
return 0;
}
case LCD_X_SETLUTENTRY: {
//
// Required for setting a lookup table entry which is passed in the 'Pos' and 'Color' element of p
//
LCD_X_SETLUTENTRY_INFO * p;
p = (LCD_X_SETLUTENTRY_INFO *)pData;
//...
return 0;
}
case LCD_X_ON: {
//
// Required if the display controller should support switching on and off
//
return 0;
}
case LCD_X_OFF: {
//
// Required if the display controller should support switching on and off
//
// ...
return 0;
}
default:
r = -1;
}
return r;
}
GUI_X_Config 函数
GUI_Init 初始化 emWin，最先调用了 GUI_X_Config 函数，该函数在 GUIConf.c 文件
中定义
/* Define the available number of bytes available for the GUI */
#define GUI_NUMBYTES (128) * 1024
U32 aMemory[GUI_NUMBYTES / 4];
/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* GUI_X_Config
*
* Purpose:
* Called during the initialization process in order to set up the
* available memory for the GUI.
*/
void GUI_X_Config(void)
{
GUI_ALLOC_AssignMemory(aMemory, GUI_NUMBYTES);
}
从上面可以看到F7为EMWIN分配了128K的空间。
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