kopia lustrzana https://github.com/UU5JPP/Wolf-LITE
725 wiersze
18 KiB
C
725 wiersze
18 KiB
C
#include "settings.h"
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#if (defined(LCD_ILI9481) || defined(LCD_HX8357B) || defined(LCD_HX8357C) || defined(LCD_ILI9486) || defined(LCD_R61581))
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//Header files
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#include "lcd_driver.h"
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#include "main.h"
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#include "fonts.h"
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#include "functions.h"
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#include "lcd_driver_ILI9481.h"
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//***** Functions prototypes *****//
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static inline void LCDDriver_SetCursorPosition(uint16_t x, uint16_t y);
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inline void LCDDriver_SetCursorAreaPosition(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2);
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//Write command to LCD
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inline void LCDDriver_SendCommand(uint16_t com)
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{
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*(__IO uint16_t *)((uint32_t)(LCD_FSMC_COMM_ADDR)) = com;
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}
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//Write data to LCD
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inline void LCDDriver_SendData(uint16_t data)
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{
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*(__IO uint16_t *)((uint32_t)(LCD_FSMC_DATA_ADDR)) = data;
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}
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//Write pair command-data
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inline void LCDDriver_writeReg(uint16_t reg, uint16_t val) {
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LCDDriver_SendCommand(reg);
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LCDDriver_SendData(val);
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}
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//Read command from LCD
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inline uint16_t LCDDriver_ReadStatus(void)
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{
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return *(__IO uint16_t *)((uint32_t)(LCD_FSMC_COMM_ADDR));
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}
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//Read data from LCD
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inline uint16_t LCDDriver_ReadData(void)
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{
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return *(__IO uint16_t *)((uint32_t)(LCD_FSMC_DATA_ADDR));
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}
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//Read Register
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inline uint16_t LCDDriver_readReg(uint16_t reg)
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{
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LCDDriver_SendCommand(reg);
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return LCDDriver_ReadData();
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}
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//Initialise function
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void LCDDriver_Init(void)
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{
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#if (defined(LCD_ILI9481) || defined(LCD_HX8357B))
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#define ILI9481_COMM_DELAY 20
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LCDDriver_SendCommand(LCD_COMMAND_SOFT_RESET); //0x01
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HAL_Delay(ILI9481_COMM_DELAY);
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LCDDriver_SendCommand(LCD_COMMAND_EXIT_SLEEP_MODE); //0x11
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HAL_Delay(ILI9481_COMM_DELAY);
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LCDDriver_SendCommand(LCD_COMMAND_NORMAL_MODE_ON); //0x13
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LCDDriver_SendCommand(LCD_COMMAND_POWER_SETTING); //(0xD0);
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LCDDriver_SendData(0x07);
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LCDDriver_SendData(0x42);
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LCDDriver_SendData(0x18);
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LCDDriver_SendCommand(LCD_COMMAND_VCOM); //(0xD1);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x07);
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LCDDriver_SendData(0x10);
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LCDDriver_SendCommand(LCD_COMMAND_NORMAL_PWR_WR); //(0xD2);
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LCDDriver_SendData(0x01);
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LCDDriver_SendData(0x02);
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HAL_Delay(ILI9481_COMM_DELAY);
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#if defined(LCD_HX8357B)
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LCDDriver_SendCommand(LCD_COMMAND_PANEL_DRV_CTL); //(0xC0);
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LCDDriver_SendData(0x10);
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LCDDriver_SendData(0x3B);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x02);
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LCDDriver_SendData(0x11);
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HAL_Delay(ILI9481_COMM_DELAY);
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#endif
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LCDDriver_SendCommand(LCD_COMMAND_FR_SET); //(0xC5);
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LCDDriver_SendData(0x03);
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HAL_Delay(ILI9481_COMM_DELAY);
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LCDDriver_SendCommand(LCD_COMMAND_GAMMAWR); //(0xC8);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x32);
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LCDDriver_SendData(0x36);
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LCDDriver_SendData(0x45);
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LCDDriver_SendData(0x06);
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LCDDriver_SendData(0x16);
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LCDDriver_SendData(0x37);
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LCDDriver_SendData(0x75);
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LCDDriver_SendData(0x77);
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LCDDriver_SendData(0x54);
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LCDDriver_SendData(0x0C);
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LCDDriver_SendData(0x00);
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HAL_Delay(ILI9481_COMM_DELAY);
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LCDDriver_SendCommand(LCD_COMMAND_MADCTL); //(0x36);
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LCDDriver_SendData(LCD_PARAM_MADCTL_BGR);
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HAL_Delay(ILI9481_COMM_DELAY);
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LCDDriver_SendCommand(LCD_COMMAND_PIXEL_FORMAT); //(0x3A);
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LCDDriver_SendData(0x55);
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HAL_Delay(ILI9481_COMM_DELAY);
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LCDDriver_SendCommand(LCD_COMMAND_COLUMN_ADDR); //(0x2A);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x01);
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LCDDriver_SendData(0x3F);
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HAL_Delay(ILI9481_COMM_DELAY);
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LCDDriver_SendCommand(LCD_COMMAND_PAGE_ADDR); //(0x2B);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x01);
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LCDDriver_SendData(0xDF);
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HAL_Delay(ILI9481_COMM_DELAY);
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#if defined(LCD_HX8357B)
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LCDDriver_SendCommand(LCD_COMMAND_COLOR_INVERSION_ON); //(0x21);
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HAL_Delay(ILI9481_COMM_DELAY);
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#endif
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LCDDriver_SendCommand(LCD_COMMAND_IDLE_OFF); //(0x38);
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HAL_Delay(ILI9481_COMM_DELAY);
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LCDDriver_SendCommand(LCD_COMMAND_DISPLAY_ON); //(0x29);
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HAL_Delay(ILI9481_COMM_DELAY);
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#endif
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#if defined(LCD_HX8357C)
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LCDDriver_SendCommand(0x11);
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HAL_Delay(20);
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LCDDriver_SendCommand(0xD0);
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LCDDriver_SendData(0x07);
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LCDDriver_SendData(0x42);
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LCDDriver_SendData(0x18);
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LCDDriver_SendCommand(0xD1);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x07);
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LCDDriver_SendData(0x10);
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LCDDriver_SendCommand(0xD2);
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LCDDriver_SendData(0x01);
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LCDDriver_SendData(0x02);
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LCDDriver_SendCommand(0xC0);
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LCDDriver_SendData(0x10);
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LCDDriver_SendData(0x3B);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x02);
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LCDDriver_SendData(0x11);
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LCDDriver_SendCommand(0xC5);
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LCDDriver_SendData(0x03);
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LCDDriver_SendCommand(0xC8);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x32);
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LCDDriver_SendData(0x36);
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LCDDriver_SendData(0x45);
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LCDDriver_SendData(0x06);
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LCDDriver_SendData(0x16);
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LCDDriver_SendData(0x37);
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LCDDriver_SendData(0x75);
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LCDDriver_SendData(0x77);
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LCDDriver_SendData(0x54);
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LCDDriver_SendData(0x0C);
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LCDDriver_SendData(0x00);
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LCDDriver_SendCommand(0x36);
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LCDDriver_SendData(0x8A);
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LCDDriver_SendCommand(0x35); // Tearing effect on
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LCDDriver_SendData(0x00); // Added parameter
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LCDDriver_SendCommand(0x3A);
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LCDDriver_SendData(0x55);
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LCDDriver_SendCommand(0x2A);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x01);
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LCDDriver_SendData(0x3F);
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LCDDriver_SendCommand(0x2B);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x01);
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LCDDriver_SendData(0xE0);
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HAL_Delay(120);
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LCDDriver_SendCommand(0x29);
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#endif
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#if defined(LCD_ILI9486)
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#define ILI9481_COMM_DELAY 100
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HAL_Delay(ILI9481_COMM_DELAY);
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LCDDriver_SendCommand(0XF1);
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LCDDriver_SendData(0x36);
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LCDDriver_SendData(0x04);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x3C);
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LCDDriver_SendData(0X0F);
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LCDDriver_SendData(0x8F);
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LCDDriver_SendCommand(0XF2);
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LCDDriver_SendData(0x18);
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LCDDriver_SendData(0xA3);
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LCDDriver_SendData(0x12);
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LCDDriver_SendData(0x02);
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LCDDriver_SendData(0XB2);
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LCDDriver_SendData(0x12);
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LCDDriver_SendData(0xFF);
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LCDDriver_SendData(0x10);
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LCDDriver_SendData(0x00);
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LCDDriver_SendCommand(0XF8);
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LCDDriver_SendData(0x21);
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LCDDriver_SendData(0x04);
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LCDDriver_SendCommand(0XF9);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x08);
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LCDDriver_SendCommand(0x36);
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LCDDriver_SendData(0x08);
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LCDDriver_SendCommand(0xB4);
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LCDDriver_SendData(0x00);
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LCDDriver_SendCommand(0xC1);
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LCDDriver_SendData(0x47); //0x41
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LCDDriver_SendCommand(0xC5);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0xAF); //0x91
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LCDDriver_SendData(0x80);
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LCDDriver_SendData(0x00);
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LCDDriver_SendCommand(0xE0);
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LCDDriver_SendData(0x0F);
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LCDDriver_SendData(0x1F);
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LCDDriver_SendData(0x1C);
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LCDDriver_SendData(0x0C);
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LCDDriver_SendData(0x0F);
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LCDDriver_SendData(0x08);
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LCDDriver_SendData(0x48);
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LCDDriver_SendData(0x98);
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LCDDriver_SendData(0x37);
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LCDDriver_SendData(0x0A);
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LCDDriver_SendData(0x13);
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LCDDriver_SendData(0x04);
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LCDDriver_SendData(0x11);
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LCDDriver_SendData(0x0D);
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LCDDriver_SendData(0x00);
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LCDDriver_SendCommand(0xE1);
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LCDDriver_SendData(0x0F);
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LCDDriver_SendData(0x32);
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LCDDriver_SendData(0x2E);
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LCDDriver_SendData(0x0B);
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LCDDriver_SendData(0x0D);
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LCDDriver_SendData(0x05);
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LCDDriver_SendData(0x47);
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LCDDriver_SendData(0x75);
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LCDDriver_SendData(0x37);
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LCDDriver_SendData(0x06);
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LCDDriver_SendData(0x10);
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LCDDriver_SendData(0x03);
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LCDDriver_SendData(0x24);
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LCDDriver_SendData(0x20);
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LCDDriver_SendData(0x00);
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LCDDriver_SendCommand(0x3A);
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LCDDriver_SendData(0x55);
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LCDDriver_SendCommand(0x11);
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LCDDriver_SendCommand(0x36);
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LCDDriver_SendData(0x28);
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HAL_Delay(ILI9481_COMM_DELAY);
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LCDDriver_SendCommand(0x29);
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#endif
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#if defined(LCD_R61581)
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LCDDriver_SendCommand(0xB0);
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LCDDriver_SendData(0x1E);
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LCDDriver_SendCommand(0xB0);
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LCDDriver_SendData(0x00);
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LCDDriver_SendCommand(0xB3);
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LCDDriver_SendData(0x02);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x10);
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LCDDriver_SendCommand(0xB4);
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LCDDriver_SendData(0x00);//0X10
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// LCDDriver_SendCommand(0xB9); //PWM Settings for Brightness Control
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// LCDDriver_SendData(0x01);// Disabled by default.
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// LCDDriver_SendData(0xFF); //0xFF = Max brightness
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// LCDDriver_SendData(0xFF);
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// LCDDriver_SendData(0x18);
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LCDDriver_SendCommand(0xC0);
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LCDDriver_SendData(0x03);
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LCDDriver_SendData(0x3B);//
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x01);
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LCDDriver_SendData(0x00);//NW
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LCDDriver_SendData(0x43);
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LCDDriver_SendCommand(0xC1);
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LCDDriver_SendData(0x08);
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LCDDriver_SendData(0x15);//CLOCK
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LCDDriver_SendData(0x08);
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LCDDriver_SendData(0x08);
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LCDDriver_SendCommand(0xC4);
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LCDDriver_SendData(0x15);
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LCDDriver_SendData(0x03);
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LCDDriver_SendData(0x03);
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LCDDriver_SendData(0x01);
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LCDDriver_SendCommand(0xC6);
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LCDDriver_SendData(0x02);
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LCDDriver_SendCommand(0xC8);
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LCDDriver_SendData(0x0c);
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LCDDriver_SendData(0x05);
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LCDDriver_SendData(0x0A);//0X12
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LCDDriver_SendData(0x6B);//0x7D
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LCDDriver_SendData(0x04);
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LCDDriver_SendData(0x06);//0x08
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LCDDriver_SendData(0x15);//0x0A
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LCDDriver_SendData(0x10);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x60);//0x23
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LCDDriver_SendCommand(0x36);
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LCDDriver_SendData(0x0A);
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LCDDriver_SendCommand(0x0C);
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LCDDriver_SendData(0x55);
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LCDDriver_SendCommand(0x3A);
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LCDDriver_SendData(0x55);
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LCDDriver_SendCommand(0x38);
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LCDDriver_SendCommand(0xD0);
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LCDDriver_SendData(0x07);
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LCDDriver_SendData(0x07);//VCI1
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LCDDriver_SendData(0x14);//VRH 0x1D
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LCDDriver_SendData(0xA2);//BT 0x06
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LCDDriver_SendCommand(0xD1);
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LCDDriver_SendData(0x03);
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LCDDriver_SendData(0x5A);//VCM 0x5A
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LCDDriver_SendData(0x10);//VDV
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LCDDriver_SendCommand(0xD2);
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LCDDriver_SendData(0x03);
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LCDDriver_SendData(0x04);//0x24
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LCDDriver_SendData(0x04);
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LCDDriver_SendCommand(0x11);
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HAL_Delay(150);
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LCDDriver_SendCommand(0x2A);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x01);
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LCDDriver_SendData(0xDF);//320
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LCDDriver_SendCommand(0x2B);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x00);
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LCDDriver_SendData(0x01);
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LCDDriver_SendData(0x3F);//480
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HAL_Delay(100);
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LCDDriver_SendCommand(0x29);
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HAL_Delay(30);
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LCDDriver_SendCommand(0x2C);
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HAL_Delay(30);
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#endif
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}
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//Set screen rotation
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void LCDDriver_setRotation(uint8_t rotate)
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{
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#if defined(LCD_ILI9481) || defined(LCD_HX8357B) || defined(LCD_ILI9486)
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LCDDriver_SendCommand(LCD_COMMAND_MADCTL);
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switch (rotate)
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{
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case 1: // Portrait
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LCDDriver_SendData(LCD_PARAM_MADCTL_BGR | LCD_PARAM_MADCTL_MX);
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break;
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case 2: // Landscape (Portrait + 90)
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LCDDriver_SendData(LCD_PARAM_MADCTL_BGR | LCD_PARAM_MADCTL_MV);
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break;
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case 3: // Inverter portrait
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LCDDriver_SendData(LCD_PARAM_MADCTL_BGR | LCD_PARAM_MADCTL_MY);
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break;
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case 4: // Inverted landscape
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LCDDriver_SendData(LCD_PARAM_MADCTL_BGR | LCD_PARAM_MADCTL_MV | LCD_PARAM_MADCTL_MX | LCD_PARAM_MADCTL_MY);
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//LCDDriver_SendData(LCD_PARAM_MADCTL_BGR | LCD_PARAM_MADCTL_MV | LCD_PARAM_MADCTL_SS | LCD_PARAM_MADCTL_GS);
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break;
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}
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HAL_Delay(120);
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#endif
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#if defined(LCD_HX8357C)
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LCDDriver_SendCommand(LCD_COMMAND_MADCTL);
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switch (rotate)
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{
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case 1: // Portrait
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LCDDriver_SendData(LCD_PARAM_MADCTL_BGR | LCD_PARAM_MADCTL_MX);
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break;
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case 2: // Landscape (Portrait + 90)
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LCDDriver_SendData(LCD_PARAM_MADCTL_BGR | LCD_PARAM_MADCTL_MV);
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break;
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case 3: // Inverter portrait
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LCDDriver_SendData(LCD_PARAM_MADCTL_BGR | LCD_PARAM_MADCTL_MY);
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break;
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case 4: // Inverted landscape
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LCDDriver_SendData(LCD_PARAM_MADCTL_BGR | LCD_PARAM_MADCTL_MV | LCD_PARAM_MADCTL_GS | LCD_PARAM_MADCTL_ML | LCD_PARAM_MADCTL_SS);
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break;
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}
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HAL_Delay(120);
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#endif
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}
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//Set cursor position
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inline void LCDDriver_SetCursorAreaPosition(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
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{
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LCDDriver_SendCommand(LCD_COMMAND_COLUMN_ADDR);
|
|
LCDDriver_SendData(x1 >> 8);
|
|
LCDDriver_SendData(x1 & 0xFF);
|
|
LCDDriver_SendData(x2 >> 8);
|
|
LCDDriver_SendData(x2 & 0xFF);
|
|
LCDDriver_SendCommand(LCD_COMMAND_PAGE_ADDR);
|
|
LCDDriver_SendData(y1 >> 8);
|
|
LCDDriver_SendData(y1 & 0xFF);
|
|
LCDDriver_SendData(y2 >> 8);
|
|
LCDDriver_SendData(y2 & 0xFF);
|
|
LCDDriver_SendCommand(LCD_COMMAND_GRAM);
|
|
}
|
|
|
|
static inline void LCDDriver_SetCursorPosition(uint16_t x, uint16_t y)
|
|
{
|
|
LCDDriver_SendCommand(LCD_COMMAND_COLUMN_ADDR);
|
|
LCDDriver_SendData(x >> 8); //-V760
|
|
LCDDriver_SendData(x & 0xFF);
|
|
LCDDriver_SendData(x >> 8);
|
|
LCDDriver_SendData(x & 0xFF);
|
|
LCDDriver_SendCommand(LCD_COMMAND_PAGE_ADDR);
|
|
LCDDriver_SendData(y >> 8); //-V760
|
|
LCDDriver_SendData(y & 0xFF);
|
|
LCDDriver_SendData(y >> 8);
|
|
LCDDriver_SendData(y & 0xFF);
|
|
LCDDriver_SendCommand(LCD_COMMAND_GRAM);
|
|
}
|
|
|
|
//Write data to a single pixel
|
|
void LCDDriver_drawPixel(uint16_t x, uint16_t y, uint16_t color)
|
|
{
|
|
LCDDriver_SetCursorPosition(x, y);
|
|
LCDDriver_SendData(color);
|
|
}
|
|
|
|
//Fill the entire screen with a background color
|
|
void LCDDriver_Fill(uint16_t color)
|
|
{
|
|
LCDDriver_Fill_RectXY(0, 0, LCD_WIDTH, LCD_HEIGHT, color);
|
|
}
|
|
|
|
//Rectangle drawing functions
|
|
IRAM1 static uint16_t fillxy_color = 0;
|
|
void LCDDriver_Fill_RectXY(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color)
|
|
{
|
|
if (x1 > (LCD_WIDTH - 1))
|
|
x1 = LCD_WIDTH - 1;
|
|
if (y1 > (LCD_HEIGHT - 1))
|
|
y1 = LCD_HEIGHT - 1;
|
|
uint32_t n = ((x1 + 1) - x0) * ((y1 + 1) - y0);
|
|
if (n > LCD_PIXEL_COUNT)
|
|
n = LCD_PIXEL_COUNT;
|
|
LCDDriver_SetCursorAreaPosition(x0, y0, x1, y1);
|
|
fillxy_color = color;
|
|
|
|
if (n > 50)
|
|
{
|
|
const uint32_t part_size = 30000;
|
|
uint32_t estamated = n;
|
|
while (estamated > 0)
|
|
{
|
|
if (estamated >= part_size)
|
|
{
|
|
HAL_DMA_Start(&hdma_memtomem_dma2_stream3, (uint32_t)&fillxy_color, LCD_FSMC_DATA_ADDR, part_size);
|
|
HAL_DMA_PollForTransfer(&hdma_memtomem_dma2_stream3, HAL_DMA_FULL_TRANSFER, HAL_MAX_DELAY);
|
|
estamated -= part_size;
|
|
}
|
|
else
|
|
{
|
|
HAL_DMA_Start(&hdma_memtomem_dma2_stream3, (uint32_t)&fillxy_color, LCD_FSMC_DATA_ADDR, estamated);
|
|
HAL_DMA_PollForTransfer(&hdma_memtomem_dma2_stream3, HAL_DMA_FULL_TRANSFER, HAL_MAX_DELAY);
|
|
estamated = 0;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
while (n--)
|
|
{
|
|
LCDDriver_SendData(color);
|
|
}
|
|
}
|
|
}
|
|
|
|
void LCDDriver_Fill_RectWH(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t color)
|
|
{
|
|
LCDDriver_Fill_RectXY(x, y, x + w, y + h, color);
|
|
}
|
|
|
|
//Line drawing functions
|
|
void LCDDriver_drawLine(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color)
|
|
{
|
|
int16_t steep = abs(y1 - y0) > abs(x1 - x0);
|
|
if (steep)
|
|
{
|
|
uswap(x0, y0)
|
|
uswap(x1, y1)
|
|
}
|
|
|
|
if (x0 > x1)
|
|
{
|
|
uswap(x0, x1)
|
|
uswap(y0, y1)
|
|
}
|
|
|
|
int16_t dx, dy;
|
|
dx = (int16_t)(x1 - x0);
|
|
dy = (int16_t)abs(y1 - y0);
|
|
|
|
int16_t err = dx / 2;
|
|
int16_t ystep;
|
|
|
|
if (y0 < y1)
|
|
{
|
|
ystep = 1;
|
|
}
|
|
else
|
|
{
|
|
ystep = -1;
|
|
}
|
|
|
|
for (; x0 <= x1; x0++)
|
|
{
|
|
if (steep)
|
|
{
|
|
LCDDriver_drawPixel(y0, x0, color);
|
|
}
|
|
else
|
|
{
|
|
LCDDriver_drawPixel(x0, y0, color);
|
|
}
|
|
err -= dy;
|
|
if (err < 0)
|
|
{
|
|
y0 += ystep;
|
|
err += dx;
|
|
}
|
|
}
|
|
}
|
|
|
|
void LCDDriver_drawFastHLine(uint16_t x, uint16_t y, int16_t w, uint16_t color)
|
|
{
|
|
int16_t x2 = x + w;
|
|
if (x2 < 0)
|
|
x2 = 0;
|
|
if (x2 > (LCD_WIDTH - 1))
|
|
x2 = LCD_WIDTH - 1;
|
|
|
|
if (x2 < x)
|
|
LCDDriver_Fill_RectXY((uint16_t)x2, y, x, y, color);
|
|
else
|
|
LCDDriver_Fill_RectXY(x, y, (uint16_t)x2, y, color);
|
|
}
|
|
|
|
void LCDDriver_drawFastVLine(uint16_t x, uint16_t y, int16_t h, uint16_t color)
|
|
{
|
|
int16_t y2 = y + h - 1;
|
|
if (y2 < 0)
|
|
y2 = 0;
|
|
if (y2 > (LCD_HEIGHT - 1))
|
|
y2 = LCD_HEIGHT - 1;
|
|
|
|
if (y2 < y)
|
|
LCDDriver_Fill_RectXY(x, (uint16_t)y2, x, y, color);
|
|
else
|
|
LCDDriver_Fill_RectXY(x, y, x, (uint16_t)y2, color);
|
|
}
|
|
|
|
void LCDDriver_drawRectXY(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color)
|
|
{
|
|
LCDDriver_drawFastHLine(x0, y0, (int16_t)(x1 - x0), color);
|
|
LCDDriver_drawFastHLine(x0, y1, (int16_t)(x1 - x0), color);
|
|
LCDDriver_drawFastVLine(x0, y0, (int16_t)(y1 - y0), color);
|
|
LCDDriver_drawFastVLine(x1, y0, (int16_t)(y1 - y0), color);
|
|
}
|
|
|
|
void LCDDriver_Fill_Triangle(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)
|
|
{
|
|
int16_t a, b, y, last;
|
|
|
|
// Sort coordinates by Y order (y2 >= y1 >= y0)
|
|
if (y0 > y1)
|
|
{
|
|
_swap_int16_t(y0, y1)
|
|
_swap_int16_t(x0, x1)
|
|
}
|
|
if (y1 > y2)
|
|
{
|
|
_swap_int16_t(y2, y1)
|
|
_swap_int16_t(x2, x1)
|
|
}
|
|
if (y0 > y1)
|
|
{
|
|
_swap_int16_t(y0, y1)
|
|
_swap_int16_t(x0, x1)
|
|
}
|
|
|
|
if (y0 == y2)
|
|
{ // Handle awkward all-on-same-line case as its own thing
|
|
a = b = x0;
|
|
if (x1 < a)
|
|
a = x1;
|
|
else if (x1 > b)
|
|
b = x1;
|
|
if (x2 < a)
|
|
a = x2;
|
|
else if (x2 > b)
|
|
b = x2;
|
|
LCDDriver_drawFastHLine(a, y0, b - a + 1, color);
|
|
return;
|
|
}
|
|
|
|
int16_t dx01 = x1 - x0, dy01 = y1 - y0, dx02 = x2 - x0, dy02 = y2 - y0,
|
|
dx12 = x2 - x1, dy12 = y2 - y1;
|
|
int32_t sa = 0, sb = 0;
|
|
|
|
// For upper part of triangle, find scanline crossings for segments
|
|
// 0-1 and 0-2. If y1=y2 (flat-bottomed triangle), the scanline y1
|
|
// is included here (and second loop will be skipped, avoiding a /0
|
|
// error there), otherwise scanline y1 is skipped here and handled
|
|
// in the second loop...which also avoids a /0 error here if y0=y1
|
|
// (flat-topped triangle).
|
|
if (y1 == y2)
|
|
last = y1; // Include y1 scanline
|
|
else
|
|
last = y1 - 1; // Skip it
|
|
|
|
for (y = y0; y <= last; y++)
|
|
{
|
|
a = x0 + sa / dy01;
|
|
b = x0 + sb / dy02;
|
|
sa += dx01;
|
|
sb += dx02;
|
|
/* longhand:
|
|
a = x0 + (x1 - x0) * (y - y0) / (y1 - y0);
|
|
b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
|
|
*/
|
|
if (a > b)
|
|
_swap_int16_t(a, b)
|
|
LCDDriver_drawFastHLine(a, y, b - a + 1, color);
|
|
}
|
|
|
|
// For lower part of triangle, find scanline crossings for segments
|
|
// 0-2 and 1-2. This loop is skipped if y1=y2.
|
|
sa = (int32_t)dx12 * (y - y1);
|
|
sb = (int32_t)dx02 * (y - y0);
|
|
for (; y <= y2; y++)
|
|
{
|
|
a = x1 + sa / dy12;
|
|
b = x0 + sb / dy02;
|
|
sa += dx12;
|
|
sb += dx02;
|
|
/* longhand:
|
|
a = x1 + (x2 - x1) * (y - y1) / (y2 - y1);
|
|
b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
|
|
*/
|
|
if (a > b)
|
|
_swap_int16_t(a, b)
|
|
LCDDriver_drawFastHLine(a, y, b - a + 1, color);
|
|
}
|
|
}
|
|
|
|
#endif
|