mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-20 21:24:22 -05:00
e88e0b5f8f
* revert * rename drawBMP to draw_bmp_from_bmp_hex_arr * rename drawBMP2 * add comments * rename BMPView class in child of nav into SplashView * rename SplashView class in child of nav into SplashScreeView * fix draw from wrong line * comment * comment * comment
718 lines
24 KiB
C++
718 lines
24 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2016 Furrtek
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "lcd_ili9341.hpp"
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#include "bmp.hpp"
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#include "portapack_io.hpp"
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using namespace portapack;
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#include "utility.hpp"
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#include "ch.h"
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#include "file.hpp"
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#include <complex>
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#include <cstring>
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#include <string>
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namespace lcd {
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namespace {
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void lcd_reset() {
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io.lcd_reset_state(false);
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chThdSleepMilliseconds(1);
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io.lcd_reset_state(true);
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chThdSleepMilliseconds(10);
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io.lcd_reset_state(false);
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chThdSleepMilliseconds(120);
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}
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void lcd_sleep_in() {
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io.lcd_data_write_command_and_data(0x10, {});
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// "It will be necessary to wait 5msec before sending next command,
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// this is to allow time for the supply voltages and clock circuits
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// to stabilize."
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chThdSleepMilliseconds(5);
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}
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void lcd_sleep_out() {
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io.lcd_data_write_command_and_data(0x11, {});
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// "It will be necessary to wait 120msec after sending Sleep Out
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// command (when in Sleep In Mode) before Sleep In command can be
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// sent."
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chThdSleepMilliseconds(120);
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}
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void lcd_display_on() {
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io.lcd_data_write_command_and_data(0x29, {});
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}
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void lcd_display_off() {
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io.lcd_data_write_command_and_data(0x28, {});
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}
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void lcd_sleep() {
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lcd_display_off();
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lcd_sleep_in();
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}
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void lcd_wake() {
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lcd_sleep_out();
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lcd_display_on();
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}
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uint32_t lcd_read_display_status() {
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io.lcd_data_write_command_and_data(0x09, {});
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io.lcd_read_word();
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uint32_t value2 = io.lcd_read_word();
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uint32_t value3 = io.lcd_read_word();
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uint32_t value4 = io.lcd_read_word();
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uint32_t value5 = io.lcd_read_word();
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return value5 + (value4 << 8) + (value3 << 16) + (value2 << 24);
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}
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void lcd_init() {
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// LCDs are configured for IM[2:0] = 001
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// 8080-I system, 16-bit parallel bus
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//
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// 0x3a: DBI[2:0] = 101
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// MDT[1:0] = XX (if not in 18-bit mode, right?)
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// Power control B
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// 0
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// PCEQ=1, DRV_ena=0, Power control=3
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io.lcd_data_write_command_and_data(0xCF, {0x00, 0xD9, 0x30});
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// Power on sequence control
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io.lcd_data_write_command_and_data(0xED, {0x64, 0x03, 0x12, 0x81});
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// Driver timing control A
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io.lcd_data_write_command_and_data(0xE8, {0x85, 0x10, 0x78});
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// Power control A
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io.lcd_data_write_command_and_data(0xCB, {0x39, 0x2C, 0x00, 0x34, 0x02});
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// Pump ratio control
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io.lcd_data_write_command_and_data(0xF7, {0x20});
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// Driver timing control B
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io.lcd_data_write_command_and_data(0xEA, {0x00, 0x00});
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io.lcd_data_write_command_and_data(0xB1, {0x00, 0x1B});
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// Blanking Porch Control
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// VFP = 0b0000010 = 2 (number of HSYNC of vertical front porch)
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// VBP = 0b0000010 = 2 (number of HSYNC of vertical back porch)
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// HFP = 0b0001010 = 10 (number of DOTCLOCK of horizontal front porch)
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// HBP = 0b0010100 = 20 (number of DOTCLOCK of horizontal back porch)
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io.lcd_data_write_command_and_data(0xB5, {0x02, 0x02, 0x0a, 0x14});
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// Display Function Control
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// PT[1:0] = 0b10
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// PTG[1:0] = 0b10
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// ISC[3:0] = 0b0010 (scan cycle interval of gate driver: 5 frames)
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// SM = 0 (gate driver pin arrangement in combination with GS)
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// SS = 1 (source output scan direction S720 -> S1)
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// GS = 0 (gate output scan direction G1 -> G320)
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// REV = 1 (normally white)
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// NL = 0b100111 (default)
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// PCDIV = 0b000000 (default?)
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io.lcd_data_write_command_and_data(0xB6, {0x0A, 0xA2, 0x27, 0x00});
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// Power Control 1
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// VRH[5:0]
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io.lcd_data_write_command_and_data(0xC0, {0x1B});
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// Power Control 2
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// SAP[2:0];BT[3:0]
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io.lcd_data_write_command_and_data(0xC1, {0x12});
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// VCOM Control 1
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io.lcd_data_write_command_and_data(0xC5, {0x32, 0x3C});
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// VCOM Control 2
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io.lcd_data_write_command_and_data(0xC7, {0x9B});
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// Memory Access Control
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// Invert X and Y memory access order, so upper-left of
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// screen is (0,0) when writing to display.
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io.lcd_data_write_command_and_data(0x36, {
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(1 << 7) | // MY=1
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(1 << 6) | // MX=1
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(0 << 5) | // MV=0
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(1 << 4) | // ML=1: reverse vertical refresh to simplify scrolling logic
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(1 << 3) // BGR=1: For Kingtech LCD, BGR filter.
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});
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// COLMOD: Pixel Format Set
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// DPI=101 (16 bits/pixel), DBI=101 (16 bits/pixel)
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io.lcd_data_write_command_and_data(0x3A, {0x55});
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// io.lcd_data_write_command_and_data(0xF6, { 0x01, 0x30 });
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// WEMODE=1 (reset column and page number on overflow)
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// MDT[1:0]
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// EPF[1:0]=00 (use channel MSB for LSB)
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// RIM=0 (If COLMOD[6:4]=101 (65k color), 16-bit RGB interface (1 transfer/pixel))
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// RM=0 (system interface/VSYNC interface)
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// DM[1:0]=00 (internal clock operation)
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// ENDIAN=0 (doesn't matter with 16-bit interface)
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io.lcd_data_write_command_and_data(0xF6, {0x01, 0x30, 0x00});
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// 3Gamma Function Disable
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io.lcd_data_write_command_and_data(0xF2, {0x00});
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// Gamma curve selected
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io.lcd_data_write_command_and_data(0x26, {0x01});
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// Set Gamma
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io.lcd_data_write_command_and_data(0xE0, {0x0F, 0x1D, 0x19, 0x0E, 0x10, 0x07, 0x4C, 0x63,
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0x3F, 0x03, 0x0D, 0x00, 0x26, 0x24, 0x04});
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// Set Gamma
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io.lcd_data_write_command_and_data(0xE1, {0x00, 0x1C, 0x1F, 0x02, 0x0F, 0x03, 0x35, 0x25,
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0x47, 0x04, 0x0C, 0x0B, 0x29, 0x2F, 0x05});
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lcd_wake();
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// Turn on Tearing Effect Line (TE) output signal.
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io.lcd_data_write_command_and_data(0x35, {0b00000000});
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}
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void lcd_set(const uint_fast8_t command, const uint_fast16_t start, const uint_fast16_t end) {
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io.lcd_data_write_command_and_data(command, {static_cast<uint8_t>(start >> 8), static_cast<uint8_t>(start & 0xff),
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static_cast<uint8_t>(end >> 8), static_cast<uint8_t>(end & 0xff)});
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}
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void lcd_ramwr_start() {
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io.lcd_data_write_command_and_data(0x2c, {});
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}
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void lcd_ramrd_start() {
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io.lcd_data_write_command_and_data(0x2e, {});
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io.lcd_read_word();
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}
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void lcd_caset(const uint_fast16_t start_column, uint_fast16_t end_column) {
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lcd_set(0x2a, start_column, end_column);
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}
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void lcd_paset(const uint_fast16_t start_page, const uint_fast16_t end_page) {
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lcd_set(0x2b, start_page, end_page);
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}
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void lcd_start_ram_write(
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const ui::Point p,
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const ui::Size s) {
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lcd_caset(p.x(), p.x() + s.width() - 1);
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lcd_paset(p.y(), p.y() + s.height() - 1);
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lcd_ramwr_start();
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}
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void lcd_start_ram_read(
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const ui::Point p,
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const ui::Size s) {
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lcd_caset(p.x(), p.x() + s.width() - 1);
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lcd_paset(p.y(), p.y() + s.height() - 1);
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lcd_ramrd_start();
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}
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void lcd_start_ram_write(
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const ui::Rect& r) {
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lcd_start_ram_write(r.location(), r.size());
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}
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void lcd_start_ram_read(
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const ui::Rect& r) {
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lcd_start_ram_read(r.location(), r.size());
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}
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void lcd_vertical_scrolling_definition(
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const uint_fast16_t top_fixed_area,
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const uint_fast16_t vertical_scrolling_area,
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const uint_fast16_t bottom_fixed_area) {
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io.lcd_data_write_command_and_data(0x33, {static_cast<uint8_t>(top_fixed_area >> 8),
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static_cast<uint8_t>(top_fixed_area & 0xff),
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static_cast<uint8_t>(vertical_scrolling_area >> 8),
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static_cast<uint8_t>(vertical_scrolling_area & 0xff),
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static_cast<uint8_t>(bottom_fixed_area >> 8),
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static_cast<uint8_t>(bottom_fixed_area & 0xff)});
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}
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void lcd_vertical_scrolling_start_address(
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const uint_fast16_t vertical_scrolling_pointer) {
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io.lcd_data_write_command_and_data(0x37, {static_cast<uint8_t>(vertical_scrolling_pointer >> 8),
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static_cast<uint8_t>(vertical_scrolling_pointer & 0xff)});
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}
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} // namespace
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bool ILI9341::read_display_status() {
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lcd_reset();
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uint32_t display_status = lcd_read_display_status();
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/* This tries to validate the display_status.
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* The value could vary from device to device, so we are less specific here.
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* 0xFFFFFEFF was seen when the display was not reachable
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* 0x00610000 was seen when the display was reachable
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*/
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if (display_status > 0x0E000000ULL)
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return false;
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if (display_status < 0x00000100ULL)
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return false;
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return true;
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}
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void ILI9341::init() {
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lcd_reset();
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lcd_init();
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}
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void ILI9341::shutdown() {
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lcd_reset();
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}
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void ILI9341::sleep() {
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lcd_sleep();
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}
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void ILI9341::wake() {
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lcd_wake();
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}
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void ILI9341::set_inverted(bool invert) {
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if (invert) {
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io.lcd_data_write_command_and_data(0x21, {});
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} else {
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io.lcd_data_write_command_and_data(0x20, {});
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}
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}
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void ILI9341::fill_rectangle(ui::Rect r, const ui::Color c) {
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const auto r_clipped = r.intersect(screen_rect());
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if (!r_clipped.is_empty()) {
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lcd_start_ram_write(r_clipped);
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size_t count = r_clipped.width() * r_clipped.height();
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io.lcd_write_pixels(c, count);
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}
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}
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void ILI9341::fill_rectangle_unrolled8(ui::Rect r, const ui::Color c) {
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const auto r_clipped = r.intersect(screen_rect());
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if (!r_clipped.is_empty()) {
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lcd_start_ram_write(r_clipped);
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size_t count = r_clipped.width() * r_clipped.height();
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io.lcd_write_pixels_unrolled8(c, count);
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}
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}
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void ILI9341::render_line(const ui::Point p, const uint8_t count, const ui::Color* line_buffer) {
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lcd_start_ram_write(p, {count, 1});
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io.lcd_write_pixels(line_buffer, count);
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}
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void ILI9341::render_box(const ui::Point p, const ui::Size s, const ui::Color* line_buffer) {
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lcd_start_ram_write(p, s);
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io.lcd_write_pixels(line_buffer, s.width() * s.height());
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}
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// RLE_4 BMP loader (delta not implemented)
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/* draw transparent, pass transparent color as arg, usage inline anonymous obj
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* portapack::display.draw_bmp_from_bmp_hex_arr({100, 100}, foo_bmp, (const uint8_t[]){41, 24, 22}); // dec, out of {255, 255, 255}
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* portapack::display.draw_bmp_from_bmp_hex_arr({100, 100}, foo_bmp, (const uint8_t[]){0x29, 0x18, 0x16}); //hex out of {0xFF, 0xFF, 0xFF}
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*
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* draw transparent, pass transparent color as arg, usage pass uint8_t[] obj
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* const uint8_t c[] = {41, 24, 22}; or const uint8_t c[3] = {0x29, 0x18, 0x16};
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* portapack::display.draw_bmp_from_bmp_hex_arr({100, 100}, foo_bmp, c);
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*
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* don't draw transparent, pass nullptr as arg, usage
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* portapack::display.draw_bmp_from_bmp_hex_arr({100, 100}, foo_bmp, nullptr);
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*
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* if your image use RLE compress as transparency methods, pass any valid color as arg, it doesn't matter (like the modal bmp. TODO: write RLE transparency generator)
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* */
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void ILI9341::draw_bmp_from_bmp_hex_arr(const ui::Point p, const uint8_t* bitmap, const uint8_t* transparency_color) {
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const bmp_header_t* bmp_header = (const bmp_header_t*)bitmap;
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uint32_t data_idx;
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uint8_t by, c, count, transp_idx = 0;
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ui::Color line_buffer[240];
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uint16_t px = 0, py;
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ui::Color palette[16];
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// Abort if bad depth or no RLE
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if ((bmp_header->bpp != 4) ||
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(bmp_header->compression != 2)) return;
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data_idx = bmp_header->image_data;
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const bmp_palette_t* bmp_palette = (const bmp_palette_t*)&bitmap[bmp_header->BIH_size + 14];
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// Convert palette and find pure magenta index (alpha color key) rgb dec(41,24,22)
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for (c = 0; c < 16; c++) {
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palette[c] = ui::Color(bmp_palette->color[c].R, bmp_palette->color[c].G, bmp_palette->color[c].B);
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if (transparency_color &&
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(bmp_palette->color[c].R == transparency_color[0]) &&
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(bmp_palette->color[c].G == transparency_color[1]) &&
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(bmp_palette->color[c].B == transparency_color[2])) transp_idx = c;
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}
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if (!transparency_color) {
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py = bmp_header->height + 16;
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do {
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by = bitmap[data_idx++];
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if (by) {
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count = by >> 1;
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by = bitmap[data_idx++];
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for (c = 0; c < count; c++) {
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line_buffer[px++] = palette[by >> 4];
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if (px < bmp_header->width) line_buffer[px++] = palette[by & 15];
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}
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if (data_idx & 1) data_idx++;
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} else {
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by = bitmap[data_idx++];
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if (by == 0) {
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render_line({p.x(), p.y() + py}, bmp_header->width, line_buffer);
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py--;
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px = 0;
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} else if (by == 1) {
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break;
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} else if (by == 2) {
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// Delta
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} else {
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count = by >> 1;
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for (c = 0; c < count; c++) {
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by = bitmap[data_idx++];
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line_buffer[px++] = palette[by >> 4];
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if (px < bmp_header->width) line_buffer[px++] = palette[by & 15];
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}
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if (data_idx & 1) data_idx++;
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}
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}
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} while (1);
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} else {
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py = bmp_header->height;
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do {
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by = bitmap[data_idx++];
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if (by) {
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count = by >> 1;
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by = bitmap[data_idx++];
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for (c = 0; c < count; c++) {
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if ((by >> 4) != transp_idx) draw_pixel({static_cast<ui::Coord>(p.x() + px), static_cast<ui::Coord>(p.y() + py)}, palette[by >> 4]);
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px++;
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if (px < bmp_header->width) {
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if ((by & 15) != transp_idx) draw_pixel({static_cast<ui::Coord>(p.x() + px), static_cast<ui::Coord>(p.y() + py)}, palette[by & 15]);
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}
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px++;
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}
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if (data_idx & 1) data_idx++;
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} else {
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by = bitmap[data_idx++];
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if (by == 0) {
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py--;
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px = 0;
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|
} else if (by == 1) {
|
|
break;
|
|
} else if (by == 2) {
|
|
// Delta
|
|
} else {
|
|
count = by >> 1;
|
|
for (c = 0; c < count; c++) {
|
|
by = bitmap[data_idx++];
|
|
if ((by >> 4) != transp_idx) draw_pixel({static_cast<ui::Coord>(p.x() + px), static_cast<ui::Coord>(p.y() + py)}, palette[by >> 4]);
|
|
px++;
|
|
if (px < bmp_header->width) {
|
|
if ((by & 15) != transp_idx) draw_pixel({static_cast<ui::Coord>(p.x() + px), static_cast<ui::Coord>(p.y() + py)}, palette[by & 15]);
|
|
}
|
|
px++;
|
|
}
|
|
if (data_idx & 1) data_idx++;
|
|
}
|
|
}
|
|
} while (1);
|
|
}
|
|
}
|
|
|
|
/* Draw BMP from SD card.
|
|
* Currently supported formats:
|
|
* 16bpp ARGB, RGB565
|
|
* 24bpp RGB
|
|
* 32bpp ARGB
|
|
*/
|
|
bool ILI9341::draw_bmp_from_sdcard_file(const ui::Point p, const std::filesystem::path& file) {
|
|
File bmpimage;
|
|
size_t file_pos = 0;
|
|
uint16_t pointer = 0;
|
|
int16_t px = 0, py, width, height;
|
|
bmp_header_t bmp_header;
|
|
uint8_t type = 0;
|
|
char buffer[257];
|
|
ui::Color line_buffer[240];
|
|
|
|
auto result = bmpimage.open(file);
|
|
if (result.is_valid())
|
|
return false;
|
|
|
|
bmpimage.seek(file_pos);
|
|
auto read_size = bmpimage.read(&bmp_header, sizeof(bmp_header));
|
|
if (!((bmp_header.signature == 0x4D42) && // "BM" Signature
|
|
(bmp_header.planes == 1) && // Seems always to be 1
|
|
(bmp_header.compression == 0 || bmp_header.compression == 3))) { // No compression
|
|
return false;
|
|
}
|
|
|
|
switch (bmp_header.bpp) {
|
|
case 16:
|
|
file_pos = 0x36;
|
|
memset(buffer, 0, 16);
|
|
bmpimage.read(buffer, 16);
|
|
if (buffer[1] == 0x7C)
|
|
type = 3; // A1R5G5B5
|
|
else
|
|
type = 0; // R5G6B5
|
|
break;
|
|
case 24:
|
|
type = 1;
|
|
break;
|
|
case 32:
|
|
default:
|
|
type = 2;
|
|
break;
|
|
}
|
|
|
|
width = bmp_header.width;
|
|
height = bmp_header.height;
|
|
|
|
if (width != 240)
|
|
return false;
|
|
|
|
file_pos = bmp_header.image_data;
|
|
|
|
py = height + 16 - 1;
|
|
/* ^ this is for to "start" AKA "image end" draw at the 17th line,
|
|
* because the render_line logic below is start with p.y() + py until "end" AKA "image start"*/
|
|
|
|
while (1) {
|
|
while (px < width) {
|
|
bmpimage.seek(file_pos);
|
|
memset(buffer, 0, 257);
|
|
read_size = bmpimage.read(buffer, 256);
|
|
if (read_size.is_error())
|
|
return false; // Read error
|
|
|
|
pointer = 0;
|
|
while (pointer < 256) {
|
|
if (pointer + 4 > 256)
|
|
break;
|
|
switch (type) {
|
|
case 0: // R5G6B5
|
|
case 3: // A1R5G5B5
|
|
if (!type)
|
|
line_buffer[px] = ui::Color((uint16_t)buffer[pointer] | ((uint16_t)buffer[pointer + 1] << 8));
|
|
else
|
|
line_buffer[px] = ui::Color(((uint16_t)buffer[pointer] & 0x1F) | ((uint16_t)buffer[pointer] & 0xE0) << 1 | ((uint16_t)buffer[pointer + 1] & 0x7F) << 9);
|
|
pointer += 2;
|
|
file_pos += 2;
|
|
break;
|
|
case 1: // 24
|
|
default:
|
|
line_buffer[px] = ui::Color(buffer[pointer + 2], buffer[pointer + 1], buffer[pointer]);
|
|
pointer += 3;
|
|
file_pos += 3;
|
|
break;
|
|
case 2: // 32
|
|
line_buffer[px] = ui::Color(buffer[pointer + 2], buffer[pointer + 1], buffer[pointer]);
|
|
pointer += 4;
|
|
file_pos += 4;
|
|
break;
|
|
}
|
|
px++;
|
|
if (px >= width) {
|
|
break;
|
|
}
|
|
}
|
|
if (read_size.value() != 256)
|
|
break;
|
|
}
|
|
render_line({p.x(), p.y() + py}, px, line_buffer);
|
|
px = 0;
|
|
py--;
|
|
|
|
if (read_size.value() < 256 || py < 0)
|
|
break;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void ILI9341::draw_line(const ui::Point start, const ui::Point end, const ui::Color color) {
|
|
int x0 = start.x();
|
|
int y0 = start.y();
|
|
int x1 = end.x();
|
|
int y1 = end.y();
|
|
|
|
int dx = std::abs(x1 - x0), sx = x0 < x1 ? 1 : -1;
|
|
int dy = std::abs(y1 - y0), sy = y0 < y1 ? 1 : -1;
|
|
int err = (dx > dy ? dx : -dy) / 2, e2;
|
|
|
|
for (;;) {
|
|
draw_pixel({static_cast<ui::Coord>(x0), static_cast<ui::Coord>(y0)}, color);
|
|
if (x0 == x1 && y0 == y1) break;
|
|
e2 = err;
|
|
if (e2 > -dx) {
|
|
err -= dy;
|
|
x0 += sx;
|
|
}
|
|
if (e2 < dy) {
|
|
err += dx;
|
|
y0 += sy;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ILI9341::fill_circle(
|
|
const ui::Point center,
|
|
const ui::Dim radius,
|
|
const ui::Color foreground,
|
|
const ui::Color background) {
|
|
const uint32_t radius2 = radius * radius;
|
|
for (int32_t y = -radius; y < radius; y++) {
|
|
const int32_t y2 = y * y;
|
|
for (int32_t x = -radius; x < radius; x++) {
|
|
const int32_t x2 = x * x;
|
|
const uint32_t d2 = x2 + y2;
|
|
const bool inside = d2 < radius2;
|
|
const auto color = inside ? foreground : background;
|
|
draw_pixel({x + center.x(), y + center.y()}, color);
|
|
}
|
|
}
|
|
}
|
|
|
|
void ILI9341::draw_pixel(
|
|
const ui::Point p,
|
|
const ui::Color color) {
|
|
if (screen_rect().contains(p)) {
|
|
lcd_start_ram_write(p, {1, 1});
|
|
io.lcd_write_pixel(color);
|
|
}
|
|
}
|
|
|
|
void ILI9341::draw_pixels(
|
|
const ui::Rect r,
|
|
const ui::Color* const colors,
|
|
const size_t count) {
|
|
/* TODO: Assert that rectangle width x height < count */
|
|
lcd_start_ram_write(r);
|
|
io.lcd_write_pixels(colors, count);
|
|
}
|
|
|
|
void ILI9341::read_pixels(
|
|
const ui::Rect r,
|
|
ui::ColorRGB888* const colors,
|
|
const size_t count) {
|
|
/* TODO: Assert that rectangle width x height < count */
|
|
lcd_start_ram_read(r);
|
|
io.lcd_read_bytes(
|
|
reinterpret_cast<uint8_t*>(colors),
|
|
count * sizeof(ui::ColorRGB888));
|
|
}
|
|
|
|
void ILI9341::draw_bitmap(
|
|
const ui::Point p,
|
|
const ui::Size size,
|
|
const uint8_t* const pixels,
|
|
const ui::Color foreground,
|
|
const ui::Color background) {
|
|
// Not a transparent background
|
|
if (ui::Color::magenta().v != background.v) {
|
|
lcd_start_ram_write(p, size);
|
|
|
|
const size_t count = size.width() * size.height();
|
|
for (size_t i = 0; i < count; i++) {
|
|
const auto pixel = pixels[i >> 3] & (1U << (i & 0x7));
|
|
io.lcd_write_pixel(pixel ? foreground : background);
|
|
}
|
|
} else {
|
|
int x = p.x();
|
|
int y = p.y();
|
|
int maxX = x + size.width();
|
|
const size_t count = size.width() * size.height();
|
|
for (size_t i = 0; i < count; i++) {
|
|
const auto pixel = pixels[i >> 3] & (1U << (i & 0x7));
|
|
if (pixel) {
|
|
draw_pixel(ui::Point(x, y), foreground);
|
|
}
|
|
// Move to the next pixel
|
|
x++;
|
|
if (x >= maxX) {
|
|
x = p.x();
|
|
y++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void ILI9341::draw_glyph(
|
|
const ui::Point p,
|
|
const ui::Glyph& glyph,
|
|
const ui::Color foreground,
|
|
const ui::Color background) {
|
|
draw_bitmap(p, glyph.size(), glyph.pixels(), foreground, background);
|
|
}
|
|
|
|
void ILI9341::scroll_set_area(
|
|
const ui::Coord top_y,
|
|
const ui::Coord bottom_y) {
|
|
scroll_state.top_area = top_y;
|
|
scroll_state.bottom_area = height() - bottom_y;
|
|
scroll_state.height = bottom_y - top_y;
|
|
lcd_vertical_scrolling_definition(scroll_state.top_area, scroll_state.height, scroll_state.bottom_area);
|
|
}
|
|
|
|
ui::Coord ILI9341::scroll_set_position(
|
|
const ui::Coord position) {
|
|
scroll_state.current_position = position % scroll_state.height;
|
|
const uint_fast16_t address = scroll_state.top_area + scroll_state.current_position;
|
|
lcd_vertical_scrolling_start_address(address);
|
|
return address;
|
|
}
|
|
|
|
ui::Coord ILI9341::scroll(const int32_t delta) {
|
|
return scroll_set_position(scroll_state.current_position + scroll_state.height - delta);
|
|
}
|
|
|
|
ui::Coord ILI9341::scroll_area_y(const ui::Coord y) const {
|
|
const auto wrapped_y = (scroll_state.current_position + y) % scroll_state.height;
|
|
return wrapped_y + scroll_state.top_area;
|
|
}
|
|
|
|
void ILI9341::scroll_disable() {
|
|
lcd_vertical_scrolling_definition(0, height(), 0);
|
|
lcd_vertical_scrolling_start_address(0);
|
|
}
|
|
|
|
} /* namespace lcd */
|