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fix:test_lcd_edu.c draw line mem overread

This commit is contained in:
Jeremy 2023-03-27 10:44:55 +08:00
parent 779444f998
commit 8a589d0eaa
1 changed files with 26 additions and 8 deletions
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34
APP_Framework/Applications/app_test/test_lcd_edu.c
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@ -18,8 +18,21 @@ void TestLcd(void)
return; return;
} }
// draw text
LcdWriteParam graph_param; LcdWriteParam graph_param;
// black
uint16* color_select = malloc(sizeof(uint16) * 321 * 321);
memset(color_select, 0x00, sizeof(uint16) * 321 * 321);
graph_param.type = LCD_DOT_TYPE;
graph_param.pixel_info.x_startpos = 0;
graph_param.pixel_info.y_startpos = 0;
graph_param.pixel_info.x_endpos = 320;
graph_param.pixel_info.y_endpos = 320;
graph_param.pixel_info.pixel_color = color_select;
PrivWrite(lcd_fd, &graph_param, NULL_PARAMETER);
free(color_select);
// draw text
graph_param.type = LCD_STRING_TYPE; graph_param.type = LCD_STRING_TYPE;
graph_param.string_info.x_pos = 0; graph_param.string_info.x_pos = 0;
graph_param.string_info.y_pos = 0; graph_param.string_info.y_pos = 0;
@ -29,20 +42,25 @@ void TestLcd(void)
graph_param.string_info.back_color = 0xFFFF; graph_param.string_info.back_color = 0xFFFF;
graph_param.string_info.font_color = 0x0000; graph_param.string_info.font_color = 0x0000;
graph_param.string_info.addr = "hello_world!"; graph_param.string_info.addr = "hello_world!";
PrivWrite(lcd_fd, &graph_param, NULL_PARAMETER); PrivWrite(lcd_fd, &graph_param, NULL_PARAMETER);
uint16 color_select = 0xF800; // draw line
for (int i = 0; i < 5; i++) color_select = malloc(sizeof(uint16) * 1 * 320);
for (int i = 0; i < 320; i++)
{
color_select[i] = 0xF800;
}
for (int i = 1; i <= 5; i++)
{ {
graph_param.type = LCD_DOT_TYPE; graph_param.type = LCD_DOT_TYPE;
graph_param.pixel_info.x_startpos = 0; graph_param.pixel_info.x_startpos = 0;
graph_param.pixel_info.y_startpos = 50 * i; graph_param.pixel_info.y_startpos = i * 50;
graph_param.pixel_info.x_endpos = 320; graph_param.pixel_info.x_endpos = 319;
graph_param.pixel_info.y_endpos = 50 * i; graph_param.pixel_info.y_endpos = i * 50;
graph_param.pixel_info.pixel_color = &color_select; graph_param.pixel_info.pixel_color = color_select;
PrivWrite(lcd_fd, &graph_param, NULL_PARAMETER); PrivWrite(lcd_fd, &graph_param, NULL_PARAMETER);
} }
free(color_select);
PrivClose(lcd_fd); PrivClose(lcd_fd);
} }