wavesharelib/RaspberryPi_JetsonNano/c/examples/EPD_4in37b_test.c

/*****************************************************************************
* | File      	:  	EPD_4in37b.c
* | Author      :   Waveshare team
* | Function    :   4.37inch e-paper b
* | Info        :
*----------------
* |	This version:   V1.0
* | Date        :   2021-01-07
* | Info        :
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documnetation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to  whom the Software is
# furished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
******************************************************************************/
#include "EPD_Test.h"
#include "EPD_4in37b.h"
#include <time.h> 

int EPD_4in37b_test(void)
{
    printf("EPD_4IN37B_test Demo\r\n");
    if(DEV_Module_Init()!=0){
        return -1;
    }

    printf("e-Paper Init and Clear...\r\n");
    EPD_4IN37B_Init();
    struct timespec start={0,0}, finish={0,0}; 
    clock_gettime(CLOCK_REALTIME,&start);
    EPD_4IN37B_Clear();
    clock_gettime(CLOCK_REALTIME,&finish);
    printf("%ld S\r\n",finish.tv_sec-start.tv_sec);
    DEV_Delay_ms(500);

    //Create a new image cache
    UBYTE *BlackImage, *RedImage;
    /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
    UWORD Imagesize = ((EPD_4IN37B_WIDTH % 8 == 0)? (EPD_4IN37B_WIDTH / 8 ): (EPD_4IN37B_WIDTH / 8 + 1)) * EPD_4IN37B_HEIGHT;
    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
        printf("Failed to apply for black memory...\r\n");
        return -1;
    }
    if((RedImage = (UBYTE *)malloc(Imagesize)) == NULL) {
        printf("Failed to apply for red memory...\r\n");
        return -1;
    }
    printf("Paint_NewImage\r\n");
    Paint_NewImage(BlackImage, EPD_4IN37B_WIDTH, EPD_4IN37B_HEIGHT, 270, WHITE);
	Paint_Clear(WHITE);
	Paint_NewImage(RedImage, EPD_4IN37B_WIDTH, EPD_4IN37B_HEIGHT, 270, WHITE);
	Paint_Clear(WHITE);

#if 1   // show bmp
    printf("show bmp------------------------\r\n");
    Paint_SelectImage(BlackImage);
    GUI_ReadBmp("./pic/4in37b_b.bmp", 0, 0);
    Paint_SelectImage(RedImage);
    GUI_ReadBmp("./pic/4in37b_r.bmp", 0, 0);
    EPD_4IN37B_Display(BlackImage, RedImage);
    DEV_Delay_ms(3000);
#endif

#if 1   // Drawing on the image
    printf("Drawing\r\n"); 

    //1.Draw black image
    Paint_SelectImage(BlackImage);
    Paint_Clear(WHITE);
    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
    Paint_DrawPoint(10, 110, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);

    //2.Draw red image
    Paint_SelectImage(RedImage);
    Paint_Clear(WHITE);
    Paint_DrawCircle(160, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
    Paint_DrawCircle(210, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
    Paint_DrawString_CN(130, 0,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);

    EPD_4IN37B_Display(BlackImage, RedImage);
    DEV_Delay_ms(3000);
#endif

#if 1	//partial data transmission
    Paint_NewImage(BlackImage, 120, 300, 270, WHITE);
	Paint_Clear(WHITE);
	Paint_NewImage(RedImage, 120, 300, 270, WHITE);
	Paint_Clear(WHITE);
	
    Paint_SelectImage(BlackImage);
    Paint_Clear(WHITE);
	Paint_DrawLine(1, 1, 300, 1, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
	Paint_DrawLine(300, 1, 300, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
	Paint_DrawLine(300, 120, 1, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
	Paint_DrawLine(1, 120, 1, 1, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);

    Paint_DrawLine(20, 95, 70, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
    Paint_DrawCircle(160, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);

    //2.Draw red image
    Paint_SelectImage(RedImage);
    Paint_Clear(WHITE);
	Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
    Paint_DrawCircle(210, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
    Paint_DrawString_EN(10, 20, "partial transmission", &Font12, WHITE, BLACK);
    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);

	EPD_4IN37B_Display_Part(BlackImage, RedImage, 20, 100, 140, 400);
    DEV_Delay_ms(3000);
#endif

    printf("Clear...\r\n");
    EPD_4IN37B_Clear();

    printf("Goto Sleep...\r\n");
    EPD_4IN37B_Sleep();
    free(BlackImage);
    BlackImage = NULL;
    DEV_Delay_ms(2000);//important, at least 2s
    // close 5V
    printf("close 5V, Module enters 0 power consumption ...\r\n");
    DEV_Module_Exit();

    return 0;
}