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Standalone app api v3 (#2772)

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Added file io, and updated some ui elements.
Also added Digital Rain standalone app for an example.
This commit is contained in:
Totoo
2025-09-01 11:50:46 +02:00
committed by GitHub
parent 776c9bc7c9
commit b15bb59678
61 changed files with 14474 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files
firmware/application/apps/ble_rx_app.cpp
+1
View File
@@ -640,6 +640,7 @@ BLERxView::BLERxView(NavigationView& nav)
};
options_filter.on_change = [this](size_t index, int32_t v) {
(void)v;
filter_index = (uint8_t)index;
recent.clear();
recent_entries_view.set_dirty();
firmware/application/apps/ui_standalone_view.cpp
+119 -4
View File
@@ -27,6 +27,9 @@
#include "ui_font_fixed_5x8.hpp"
#include "ui_font_fixed_8x16.hpp"
#include "portapack.hpp"
#include "file.hpp"
namespace ui {
@@ -93,8 +96,90 @@ bool i2c_read(uint8_t* cmd, size_t cmd_len, uint8_t* data, size_t data_len) {
return dev->i2c_read(cmd, cmd_len, data, data_len);
}
// v3
// Version 3
FRESULT ext_f_open(FIL* fp, const TCHAR* path, BYTE mode) {
return f_open(fp, path, mode);
}
FRESULT ext_f_close(FIL* fp) {
return f_close(fp);
}
FRESULT ext_f_read(FIL* fp, void* buff, UINT btr, UINT* br) {
return f_read(fp, buff, btr, br);
}
FRESULT ext_f_write(FIL* fp, const void* buff, UINT btw, UINT* bw) {
return f_write(fp, buff, btw, bw);
}
FRESULT ext_f_lseek(FIL* fp, FSIZE_t ofs) {
return f_lseek(fp, ofs);
}
FRESULT ext_f_truncate(FIL* fp) {
return f_truncate(fp);
}
FRESULT ext_f_sync(FIL* fp) {
return f_sync(fp);
}
FRESULT ext_f_opendir(DIR* dp, const TCHAR* path) {
return f_opendir(dp, path);
}
FRESULT ext_f_closedir(DIR* dp) {
return f_closedir(dp);
}
FRESULT ext_f_readdir(DIR* dp, FILINFO* fno) {
return f_readdir(dp, fno);
}
FRESULT ext_f_findfirst(DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern) {
return f_findfirst(dp, fno, path, pattern);
}
FRESULT ext_f_findnext(DIR* dp, FILINFO* fno) {
return f_findnext(dp, fno);
}
FRESULT ext_f_mkdir(const TCHAR* path) {
return f_mkdir(path);
}
FRESULT ext_f_unlink(const TCHAR* path) {
return f_unlink(path);
}
FRESULT ext_f_rename(const TCHAR* path_old, const TCHAR* path_new) {
return f_rename(path_old, path_new);
}
FRESULT ext_f_stat(const TCHAR* path, FILINFO* fno) {
return f_stat(path, fno);
}
FRESULT ext_f_utime(const TCHAR* path, const FILINFO* fno) {
return f_utime(path, fno);
}
FRESULT ext_f_getfree(const TCHAR* path, DWORD* nclst, FATFS** fatfs) {
return f_getfree(path, nclst, fatfs);
}
FRESULT ext_f_mount(FATFS* fs, const TCHAR* path, BYTE opt) {
return f_mount(fs, path, opt);
}
int ext_f_putc(TCHAR c, FIL* fp) {
return f_putc(c, fp);
}
int ext_f_puts(const TCHAR* str, FIL* cp) {
return f_puts(str, cp);
}
int ext_f_printf(FIL* fp, const TCHAR* str, ...) {
return f_printf(fp, str);
}
TCHAR* ext_f_gets(TCHAR* buff, int len, FIL* fp) {
return f_gets(buff, len, fp);
}
void ext_draw_pixels(const ui::Rect r, const ui::Color* const colors, const size_t count) {
portapack::display.draw_pixels(r, colors, count);
}
void ext_draw_pixel(const ui::Point p, const ui::Color color) {
portapack::display.draw_pixel(p, color);
}
StandaloneView* standaloneView = nullptr;
void exit_app() {
if (standaloneView) standaloneView->exit();
}
void set_dirty() {
if (standaloneView != nullptr)
standaloneView->set_dirty();
@@ -121,6 +206,33 @@ standalone_application_api_t api = {
/* .i2c_read = */ &i2c_read,
/* .panic = */ &chDbgPanic,
/* .set_dirty = */ &set_dirty,
// Version 3
.f_open = &ext_f_open,
.f_close = &ext_f_close,
.f_read = &ext_f_read,
.f_write = &ext_f_write,
.f_lseek = &ext_f_lseek,
.f_truncate = &ext_f_truncate,
.f_sync = &ext_f_sync,
.f_opendir = &ext_f_opendir,
.f_closedir = &ext_f_closedir,
.f_readdir = &ext_f_readdir,
.f_findfirst = &ext_f_findfirst,
.f_findnext = &ext_f_findnext,
.f_mkdir = &ext_f_mkdir,
.f_unlink = &ext_f_unlink,
.f_rename = &ext_f_rename,
.f_stat = &ext_f_stat,
.f_utime = &ext_f_utime,
.f_getfree = &ext_f_getfree,
.f_mount = &ext_f_mount,
.f_putc = &ext_f_putc,
.f_puts = &ext_f_puts,
.f_printf = &ext_f_printf,
.f_gets = &ext_f_gets,
.draw_pixels = &ext_draw_pixels,
.draw_pixel = &ext_draw_pixel,
.exit_app = &exit_app,
};
StandaloneView::StandaloneView(NavigationView& nav, uint8_t* app_image)
@@ -158,22 +270,21 @@ bool StandaloneView::on_key(const KeyEvent key) {
if (get_application_information()->header_version > 1) {
return get_application_information()->OnKeyEvent((uint8_t)key);
}
return false;
return true;
}
bool StandaloneView::on_encoder(const EncoderEvent event) {
if (get_application_information()->header_version > 1) {
return get_application_information()->OnEncoder((int32_t)event);
}
return false;
return true;
}
bool StandaloneView::on_touch(const TouchEvent event) {
if (get_application_information()->header_version > 1) {
get_application_information()->OnTouchEvent(event.point.x(), event.point.y(), (uint32_t)event.type);
}
return true;
return false;
}
bool StandaloneView::on_keyboard(const KeyboardEvent event) {
@@ -202,4 +313,8 @@ void StandaloneView::on_before_detach() {
context().focus_manager().clearMirror();
}
void StandaloneView::exit() {
nav_.pop();
}
} // namespace ui
firmware/application/apps/ui_standalone_view.hpp
+2
View File
@@ -51,6 +51,8 @@ class StandaloneView : public View {
void frame_sync();
void exit();
private:
bool initialized = false;
NavigationView& nav_;
firmware/application/theme.cpp
+6
View File
@@ -4,6 +4,12 @@ namespace ui {
ThemeTemplate* Theme::current = nullptr;
void Theme::destroy() {
if (current != nullptr)
delete current;
current = nullptr;
}
ThemeTemplate* Theme::getInstance() {
if (current == nullptr) SetTheme(DefaultGrey);
return Theme::current;
firmware/application/theme.hpp
+1 -1
View File
@@ -113,7 +113,7 @@ class Theme {
static void SetTheme(ThemeId theme);
static ThemeTemplate* current;
static void destroy(); // used from standalone app, to prevent memleak
private:
};
firmware/application/ui/ui_geomap.cpp
+3 -3
View File
@@ -256,7 +256,7 @@ void GeoMap::map_read_line_bin(ui::Color* buffer, uint16_t pixels) {
for (int i = 0; i < geomap_rect_width; i++) {
buffer[i] = zoom_out_buffer[i * (-map_zoom)];
}
delete zoom_out_buffer;
delete[] zoom_out_buffer;
}
}
@@ -660,7 +660,7 @@ bool GeoMap::init() {
map_height = 32768;
}
map_visible = map_opened;
map_visible = map_opened || has_osm;
map_center_x = map_width >> 1;
map_center_y = map_height >> 1;
@@ -670,7 +670,7 @@ bool GeoMap::init() {
map_bottom = sin(-85.05 * pi / 180); // Map bitmap only goes from about -85 to 85 lat
map_world_lon = map_width / (2 * pi);
map_offset = (map_world_lon / 2 * log((1 + map_bottom) / (1 - map_bottom)));
return map_opened || has_osm;
return map_opened;
}
void GeoMap::set_mode(GeoMapMode mode) {
firmware/application/ui_external_items_menu_loader.cpp
+1 -1
View File
@@ -347,7 +347,7 @@ namespace ui {
return false;
// TODO: move this to m4 memory space
auto app_image = reinterpret_cast<uint8_t*>(portapack::memory::map::m4_code.end() - app.size());
auto app_image = reinterpret_cast<uint8_t*>(portapack::memory::map::local_sram_0.base());
// read file in 512 byte chunks
for (size_t file_read_index = 0; file_read_index < app.size(); file_read_index += std::filesystem::max_file_block_size) {
firmware/common/standalone_app.hpp
+48 -2
View File
@@ -27,8 +27,9 @@
#include <stddef.h>
#include "ui.hpp"
#include "file.hpp"
#define CURRENT_STANDALONE_APPLICATION_API_VERSION 2
#define CURRENT_STANDALONE_APPLICATION_API_VERSION 3
struct standalone_application_api_t {
// Version 1
@@ -58,7 +59,52 @@ struct standalone_application_api_t {
void (*panic)(const char* msg);
void (*set_dirty)();
// TODO: add filesystem access functions
// Version 3
FRESULT(*f_open)
(FIL* fp, const TCHAR* path, BYTE mode);
FRESULT(*f_close)
(FIL* fp);
FRESULT(*f_read)
(FIL* fp, void* buff, UINT btr, UINT* br);
FRESULT(*f_write)
(FIL* fp, const void* buff, UINT btw, UINT* bw);
FRESULT(*f_lseek)
(FIL* fp, FSIZE_t ofs);
FRESULT(*f_truncate)
(FIL* fp);
FRESULT(*f_sync)
(FIL* fp);
FRESULT(*f_opendir)
(DIR* dp, const TCHAR* path);
FRESULT(*f_closedir)
(DIR* dp);
FRESULT(*f_readdir)
(DIR* dp, FILINFO* fno);
FRESULT(*f_findfirst)
(DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern);
FRESULT(*f_findnext)
(DIR* dp, FILINFO* fno);
FRESULT(*f_mkdir)
(const TCHAR* path);
FRESULT(*f_unlink)
(const TCHAR* path);
FRESULT(*f_rename)
(const TCHAR* path_old, const TCHAR* path_new);
FRESULT(*f_stat)
(const TCHAR* path, FILINFO* fno);
FRESULT(*f_utime)
(const TCHAR* path, const FILINFO* fno);
FRESULT(*f_getfree)
(const TCHAR* path, DWORD* nclst, FATFS** fatfs);
FRESULT(*f_mount)
(FATFS* fs, const TCHAR* path, BYTE opt);
int (*f_putc)(TCHAR c, FIL* fp);
int (*f_puts)(const TCHAR* str, FIL* cp);
int (*f_printf)(FIL* fp, const TCHAR* str, ...);
TCHAR* (*f_gets)(TCHAR* buff, int len, FIL* fp);
void (*draw_pixels)(const ui::Rect r, const ui::Color* const colors, const size_t count);
void (*draw_pixel)(const ui::Point p, const ui::Color color);
void (*exit_app)();
// TODO: add baseband access functions
// HOW TO extend this interface:
firmware/standalone/CMakeLists.txt
+2 -1
View File
@@ -3,9 +3,10 @@ cmake_minimum_required(VERSION 3.16)
project(standalone_apps)
add_subdirectory(pacman)
add_subdirectory(digitalrain)
add_custom_target(
standalone_apps
DEPENDS pacman_app
DEPENDS pacman_app digitalrain_app
)
firmware/standalone/digitalrain/CMakeLists.txt
+234
View File
@@ -0,0 +1,234 @@
#
# Copyright (C) 2024 Bernd Herzog
#
# This file is part of PortaPack.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
##############################################################################
# Build global options
# NOTE: Can be overridden externally.
#
enable_language(C CXX ASM)
include(CheckCXXCompilerFlag)
project(digitalrain_app)
# Compiler options here.
set(USE_OPT "-Os -g --specs=nano.specs --specs=nosys.specs")
# C specific options here (added to USE_OPT).
set(USE_COPT "-std=gnu99")
# C++ specific options here (added to USE_OPT).
check_cxx_compiler_flag("-std=c++20" cpp20_supported)
if(cpp20_supported)
set(USE_CPPOPT "-std=c++20")
else()
set(USE_CPPOPT "-std=c++17")
endif()
set(USE_CPPOPT "${USE_CPPOPT} -fno-rtti -fno-exceptions -Weffc++ -Wuninitialized -fno-use-cxa-atexit")
# Enable this if you want the linker to remove unused code and data
set(USE_LINK_GC yes)
# Linker extra options here.
set(USE_LDOPT)
# Enable this if you want link time optimizations (LTO) - this flag affects chibios only
set(USE_LTO no)
# If enabled, this option allows to compile the application in THUMB mode.
set(USE_THUMB yes)
# Enable this if you want to see the full log while compiling.
set(USE_VERBOSE_COMPILE no)
#
# Build global options
##############################################################################
##############################################################################
# Architecture or project specific options
#
# Enables the use of FPU on Cortex-M4 (no, softfp, hard).
set(USE_FPU no)
#
# Architecture or project specific options
##############################################################################
##############################################################################
# Project, sources and paths
#
# Define linker script file here
set(LDSCRIPT ${CMAKE_CURRENT_SOURCE_DIR}/external.ld)
# C sources that can be compiled in ARM or THUMB mode depending on the global
# setting.
FILE(GLOB_RECURSE Sources_C ${CMAKE_CURRENT_LIST_DIR}/*.c)
set(CSRC
${Sources_C}
)
# C++ sources that can be compiled in ARM or THUMB mode depending on the global
# setting.
FILE(GLOB_RECURSE Sources_CPP ${CMAKE_CURRENT_LIST_DIR}/*.cpp)
set(CPPSRC
${Sources_CPP}
)
# C sources to be compiled in ARM mode regardless of the global setting.
# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
# option that results in lower performance and larger code size.
set(ACSRC)
# C++ sources to be compiled in ARM mode regardless of the global setting.
# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
# option that results in lower performance and larger code size.
set(ACPPSRC)
# C sources to be compiled in THUMB mode regardless of the global setting.
# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
# option that results in lower performance and larger code size.
set(TCSRC)
# C sources to be compiled in THUMB mode regardless of the global setting.
# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
# option that results in lower performance and larger code size.
set(TCPPSRC)
# List ASM source files here
set(ASMSRC)
set(INCDIR
${CMAKE_CURRENT_SOURCE_DIR}
${COMMON}
${COMMON}/../application
${COMMON}/../application/hw
)
#
# Project, sources and paths
##############################################################################
##############################################################################
# Compiler settings
#
# TODO: Entertain using MCU=cortex-m0.small-multiply for LPC43xx M0 core.
# However, on GCC-ARM-Embedded 4.9 2015q2, it seems to produce non-functional
# binaries.
set(MCU cortex-m0)
# ARM-specific options here
set(AOPT)
# THUMB-specific options here
set(TOPT "-mthumb -DTHUMB")
# Define C warning options here
set(CWARN "-Wall -Wextra -Wstrict-prototypes")
# Define C++ warning options here
set(CPPWARN "-Wall -Wextra -Wno-psabi")
#
# Compiler settings
##############################################################################
##############################################################################
# Start of default section
#
# List all default C defines here, like -D_DEBUG=1
# TODO: Switch -DCRT0_INIT_DATA depending on load from RAM or SPIFI?
# NOTE: _RANDOM_TCC to kill a GCC 4.9.3 error with std::max argument types
set(DDEFS "-DLPC43XX -DLPC43XX_M0 -D__NEWLIB__ -DHACKRF_ONE -DTOOLCHAIN_GCC -DTOOLCHAIN_GCC_ARM -D_RANDOM_TCC=0")
# List all default ASM defines here, like -D_DEBUG=1
set(DADEFS)
# List all default directories to look for include files here
set(DINCDIR)
# List the default directory to look for the libraries here
set(DLIBDIR)
# List all default libraries here
set(DLIBS)
#
# End of default section
##############################################################################
##############################################################################
# Start of user section
#
# List all user C define here, like -D_DEBUG=1
set(UDEFS)
# Define ASM defines here
set(UADEFS)
# List all user directories here
set(UINCDIR)
# List the user directory to look for the libraries here
set(ULIBDIR)
# List all user libraries here
set(ULIBS)
#
# End of user defines
##############################################################################
set(RULESPATH ${CHIBIOS}/os/ports/GCC/ARMCMx)
include(${RULESPATH}/rules.cmake)
##############################################################################
add_executable(${PROJECT_NAME}.elf ${CSRC} ${CPPSRC} ${ASMSRC})
set_target_properties(${PROJECT_NAME}.elf PROPERTIES LINK_DEPENDS ${LDSCRIPT})
add_definitions(${DEFS})
include_directories(. ${INCDIR})
link_directories(${LLIBDIR})
target_link_libraries(${PROJECT_NAME}.elf -Wl,-Map=${PROJECT_NAME}.map)
# redirect std lib memory allocations
target_link_libraries(${PROJECT_NAME}.elf "-Wl,-wrap,_malloc_r")
target_link_libraries(${PROJECT_NAME}.elf "-Wl,-wrap,_free_r")
target_link_libraries(${PROJECT_NAME}.elf "-Wl,--print-memory-usage")
add_custom_command(
OUTPUT ${PROJECT_NAME}.ppmp
COMMAND ${CMAKE_OBJCOPY} -v -O binary ${PROJECT_NAME}.elf ${PROJECT_NAME}.ppmp
DEPENDS ${PROJECT_NAME}.elf
)
add_custom_target(
${PROJECT_NAME}
DEPENDS ${PROJECT_NAME}.ppmp
)
firmware/standalone/digitalrain/digitalrain.cpp
+153
View File
@@ -0,0 +1,153 @@
/*
* Copyright (C) 2024 Bernd Herzog
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "digitalrain.hpp"
#include <memory>
#include <string>
StandaloneViewMirror* standaloneViewMirror = nullptr;
ui::Context* context = nullptr;
void initialize(const standalone_application_api_t& api) {
_api = &api;
context = new ui::Context();
standaloneViewMirror = new StandaloneViewMirror(*context, {0, 16, 240, 304});
}
// event 1 == frame sync. called each 1/60th of second, so 6 = 100ms
void on_event(const uint32_t& events) {
if ((events & 1) == 1) standaloneViewMirror->need_refresh();
}
void shutdown() {
delete standaloneViewMirror;
delete context;
}
void PaintViewMirror() {
ui::Painter painter;
if (standaloneViewMirror)
painter.paint_widget_tree(standaloneViewMirror);
}
ui::Widget* touch_widget(ui::Widget* const w, ui::TouchEvent event) {
if (!w->hidden()) {
// To achieve reverse depth ordering (last object drawn is
// considered "top"), descend first.
for (const auto child : w->children()) {
const auto touched_widget = touch_widget(child, event);
if (touched_widget) {
return touched_widget;
}
}
const auto r = w->screen_rect();
if (r.contains(event.point)) {
if (w->on_touch(event)) {
// This widget responded. Return it up the call stack.
return w;
}
}
}
return nullptr;
}
ui::Widget* captured_widget{nullptr};
void OnTouchEvent(int, int, uint32_t) {
if (standaloneViewMirror) {
_api->exit_app();
/*
ui::TouchEvent event{{x, y}, static_cast<ui::TouchEvent::Type>(type)};
if (event.type == ui::TouchEvent::Type::Start) {
captured_widget = touch_widget(standaloneViewMirror, event);
if (captured_widget) {
captured_widget->focus();
captured_widget->set_dirty();
}
}
if (captured_widget)
captured_widget->on_touch(event);
*/
}
}
void OnFocus() {
if (standaloneViewMirror)
standaloneViewMirror->focus();
}
bool OnKeyEvent(uint8_t) {
// ui::KeyEvent key = (ui::KeyEvent)key_val;
if (context) {
_api->exit_app();
/* auto focus_widget = context->focus_manager().focus_widget();
if (focus_widget) {
if (focus_widget->on_key(key))
return true;
context->focus_manager().update(standaloneViewMirror, key);
if (focus_widget != context->focus_manager().focus_widget())
return true;
else {
if (key == ui::KeyEvent::Up || key == ui::KeyEvent::Back || key == ui::KeyEvent::Left) {
focus_widget->blur();
return false;
}
}
}*/
}
return false;
}
bool OnEncoder(int32_t) {
if (context) {
_api->exit_app();
/*
auto focus_widget = context->focus_manager().focus_widget();
if (focus_widget) return focus_widget->on_encoder((ui::EncoderEvent)delta);
*/
}
return false;
}
bool OnKeyboad(uint8_t) {
if (context) {
_api->exit_app();
/*
auto focus_widget = context->focus_manager().focus_widget();
if (focus_widget)
return focus_widget->on_keyboard((ui::KeyboardEvent)key);
*/
}
return false;
}
firmware/standalone/digitalrain/digitalrain.hpp
+221
View File
@@ -0,0 +1,221 @@
/*
* Copyright (C) 2024 Bernd Herzog
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#pragma once
#include "standalone_app.hpp"
#include "ui/ui_widget.hpp"
#include "ui/theme.hpp"
#include "ui/string_format.hpp"
#include <string.h>
#include "ui/ui_font_fixed_5x8.hpp"
#include "ui/ui_painter.hpp"
#include <string>
#include <random>
#include <cstdlib> // for std::rand() and std::srand()
#include <ctime> // for std::time()
void initialize(const standalone_application_api_t& api);
void on_event(const uint32_t& events);
void shutdown();
void OnFocus();
bool OnKeyEvent(uint8_t);
bool OnEncoder(int32_t);
void OnTouchEvent(int, int, uint32_t);
bool OnKeyboad(uint8_t);
void PaintViewMirror();
extern const standalone_application_api_t* _api;
class DigitalRain {
private:
ui::Painter painter{};
static const int WIDTH = 240;
static const int HEIGHT = 325;
static const int MARGIN_TOP = 20;
static const int CHAR_WIDTH = 5;
static const int CHAR_HEIGHT = 8;
static const int COLS = WIDTH / CHAR_WIDTH;
static const int ROWS = (HEIGHT - MARGIN_TOP) / CHAR_HEIGHT;
static const int MAX_DROPS = 36;
const ui::Font& font = ui::font::fixed_5x8();
struct Drop {
uint8_t x;
int16_t y;
uint8_t length;
uint8_t speed;
uint8_t morph_counter[16];
char chars[16];
int16_t old_y; // Track previous position for clearing
bool active;
};
Drop drops[MAX_DROPS];
const char char_set[16] = {
'@', '#', '$', '0', '1', '2', '>', '<',
'/', '\\', '[', ']', '{', '}', '.', ' '};
inline int random(int min, int max) {
return min + (std::rand() % (max - min + 1));
}
void init_drop(uint8_t index, bool force_top = false) {
drops[index].x = random(0, COLS - 1);
drops[index].y = force_top ? -random(0, 5) : -5;
drops[index].old_y = drops[index].y; // Initialize old position
drops[index].length = random(5, 15);
drops[index].speed = random(1, 3);
drops[index].active = true;
for (uint8_t i = 0; i < 16; i++) {
drops[index].chars[i] = char_set[random(0, 15)];
drops[index].morph_counter[i] = random(2, 6);
}
}
void clear_drop_trail(const Drop& drop) {
// Convert to int16_t for consistent type comparison
int16_t start_y = std::max<int16_t>(0, drop.old_y - drop.length + 1);
int16_t end_y = std::min<int16_t>(ROWS - 1, drop.old_y);
if (start_y <= end_y) {
int16_t pixel_y = start_y * CHAR_HEIGHT + MARGIN_TOP;
uint16_t height = (end_y - start_y + 1) * CHAR_HEIGHT;
painter.fill_rectangle_unrolled8(
{static_cast<int16_t>(drop.x * CHAR_WIDTH),
pixel_y,
CHAR_WIDTH,
height},
ui::Color::black());
}
}
void morph_characters(Drop& drop) {
for (uint8_t i = 0; i < drop.length; i++) {
if (--drop.morph_counter[i] == 0) {
drop.chars[i] = char_set[random(0, 15)];
drop.morph_counter[i] = random(2, 6);
}
}
}
public:
DigitalRain() {
std::srand(0);
for (uint8_t i = 0; i < MAX_DROPS; ++i) {
init_drop(i, true);
}
}
void update() {
for (uint8_t i = 0; i < MAX_DROPS; ++i) {
if (!drops[i].active) continue;
// Store old position before updating
drops[i].old_y = drops[i].y;
// Update position
drops[i].y += drops[i].speed;
morph_characters(drops[i]);
// Reset drop if off screen
if (drops[i].y - drops[i].length > ROWS) {
clear_drop_trail(drops[i]); // Clear final position
init_drop(i);
}
}
}
void render() {
for (uint8_t i = 0; i < MAX_DROPS; ++i) {
if (!drops[i].active) continue;
// Clear previous position
clear_drop_trail(drops[i]);
// Draw new position
for (uint8_t j = 0; j < drops[i].length; ++j) {
int y = drops[i].y - j;
if (y >= 0 && y < ROWS) {
ui::Point p{
static_cast<int16_t>(drops[i].x * CHAR_WIDTH),
static_cast<int16_t>(y * CHAR_HEIGHT + MARGIN_TOP)};
ui::Color fg;
if (j == 0) {
fg = ui::Color::white();
} else if (j < 3) {
fg = ui::Color(0, 255, 0);
} else {
uint8_t intensity = std::max(40, 180 - (j * 15));
fg = ui::Color(0, intensity, 0);
}
std::string ch(1, drops[i].chars[j]);
painter.draw_string(
p,
font,
fg,
ui::Color::black(),
ch);
}
}
}
}
};
class StandaloneViewMirror : public ui::View {
public:
StandaloneViewMirror(ui::Context& context, const ui::Rect parent_rect)
: View{parent_rect}, context_(context) {
set_style(ui::Theme::getInstance()->bg_darkest);
}
~StandaloneViewMirror() {
ui::Theme::destroy();
}
ui::Context& context() const override {
return context_;
}
void focus() override {
}
bool need_refresh() {
update++;
if (update % 2 == 0) {
return false;
}
digitalRain.update();
digitalRain.render();
return true;
}
private:
ui::Context& context_;
ui::Console console{{0, 0, 240, 320}};
DigitalRain digitalRain{};
uint8_t update = 0;
};
firmware/standalone/digitalrain/external.ld
+118
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@@ -0,0 +1,118 @@
/*
Copyright (C) 2024 Bernd Herzog
Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
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.
*/
MEMORY
{
ram : org = 0xADB10000, len = 64k /* DO NOT CHANGE the address. We make the image relocateable on load. It needs to be 0xADB10000 */
}
__ram_start__ = ORIGIN(ram);
__ram_size__ = LENGTH(ram);
__ram_end__ = __ram_start__ + __ram_size__;
SECTIONS
{
. = 0;
_text = .;
startup : ALIGN(16) SUBALIGN(16)
{
KEEP(*(.standalone_application_information));
} > ram
constructors : ALIGN(4) SUBALIGN(4)
{
PROVIDE(__init_array_start = .);
KEEP(*(SORT(.init_array.*)))
KEEP(*(.init_array))
PROVIDE(__init_array_end = .);
} > ram
destructors : ALIGN(4) SUBALIGN(4)
{
PROVIDE(__fini_array_start = .);
KEEP(*(.fini_array))
KEEP(*(SORT(.fini_array.*)))
PROVIDE(__fini_array_end = .);
} > ram
.text : ALIGN(16) SUBALIGN(16)
{
*(.text.startup.*)
*(.text)
*(.text.*)
*(.rodata)
*(.rodata.*)
*(.glue_7t)
*(.glue_7)
*(.gcc*)
} > ram
.ARM.extab :
{
*(.ARM.extab* .gnu.linkonce.armextab.*)
} > ram
.ARM.exidx : {
PROVIDE(__exidx_start = .);
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
PROVIDE(__exidx_end = .);
} > ram
.eh_frame_hdr :
{
*(.eh_frame_hdr)
} > ram
.eh_frame : ONLY_IF_RO
{
*(.eh_frame)
} > ram
.textalign : ONLY_IF_RO
{
. = ALIGN(8);
} > ram
.bss ALIGN(4) : ALIGN(4)
{
. = ALIGN(4);
PROVIDE(_bss_start = .);
*(.bss)
*(.bss.*)
*(COMMON)
. = ALIGN(4);
PROVIDE(_bss_end = .);
} > ram
. = ALIGN(4);
_etext = .;
_textdata = _etext;
.data ALIGN(4) : AT (_textdata)
{
. = ALIGN(4);
PROVIDE(_data = .);
*(.data)
*(.data.*)
*(.ramtext)
. = ALIGN(4);
PROVIDE(_edata = .);
} > ram
}
PROVIDE(end = .);
_end = .;
firmware/standalone/digitalrain/ff.h
+312
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@@ -0,0 +1,312 @@
/*----------------------------------------------------------------------------/
/ FatFs - Generic FAT file system module R0.12c /
/-----------------------------------------------------------------------------/
/
/ Copyright (C) 2017, ChaN, all right reserved.
/
/ FatFs module is an open source software. Redistribution and use of FatFs in
/ source and binary forms, with or without modification, are permitted provided
/ that the following condition is met:
/ 1. Redistributions of source code must retain the above copyright notice,
/ this condition and the following disclaimer.
/
/ This software is provided by the copyright holder and contributors "AS IS"
/ and any warranties related to this software are DISCLAIMED.
/ The copyright owner or contributors be NOT LIABLE for any damages caused
/ by use of this software.
/----------------------------------------------------------------------------*/
#ifndef _FATFS
#define _FATFS 68300 /* Revision ID */
#ifdef __cplusplus
extern "C" {
#endif
#include "integer.h" /* Basic integer types */
#include "ffconf.h" /* FatFs configuration options */
#if _FATFS != _FFCONF
#error Wrong configuration file (ffconf.h).
#endif
/* Definitions of volume management */
#if _MULTI_PARTITION /* Multiple partition configuration */
typedef struct {
BYTE pd; /* Physical drive number */
BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
} PARTITION;
extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
#endif
/* Type of path name strings on FatFs API */
#if _LFN_UNICODE /* Unicode (UTF-16) string */
#if _USE_LFN == 0
#error _LFN_UNICODE must be 0 at non-LFN cfg.
#endif
#ifndef _INC_TCHAR
typedef WCHAR TCHAR;
#define _T(x) L##x
#define _TEXT(x) L##x
#endif
#else /* ANSI/OEM string */
#ifndef _INC_TCHAR
typedef char TCHAR;
#define _T(x) x
#define _TEXT(x) x
#endif
#endif
/* Type of file size variables */
#if _FS_EXFAT
#if _USE_LFN == 0
#error LFN must be enabled when enable exFAT
#endif
typedef QWORD FSIZE_t;
#else
typedef DWORD FSIZE_t;
#endif
/* File system object structure (FATFS) */
typedef struct {
BYTE fs_type; /* File system type (0:N/A) */
BYTE drv; /* Physical drive number */
BYTE n_fats; /* Number of FATs (1 or 2) */
BYTE wflag; /* win[] flag (b0:dirty) */
BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */
WORD id; /* File system mount ID */
WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
WORD csize; /* Cluster size [sectors] */
#if _MAX_SS != _MIN_SS
WORD ssize; /* Sector size (512, 1024, 2048 or 4096) */
#endif
#if _USE_LFN != 0
WCHAR* lfnbuf; /* LFN working buffer */
#endif
#if _FS_EXFAT
BYTE* dirbuf; /* Directory entry block scratchpad buffer */
#endif
#if _FS_REENTRANT
_SYNC_t sobj; /* Identifier of sync object */
#endif
#if !_FS_READONLY
DWORD last_clst; /* Last allocated cluster */
DWORD free_clst; /* Number of free clusters */
#endif
#if _FS_RPATH != 0
DWORD cdir; /* Current directory start cluster (0:root) */
#if _FS_EXFAT
DWORD cdc_scl; /* Containing directory start cluster (invalid when cdir is 0) */
DWORD cdc_size; /* b31-b8:Size of containing directory, b7-b0: Chain status */
DWORD cdc_ofs; /* Offset in the containing directory (invalid when cdir is 0) */
#endif
#endif
DWORD n_fatent; /* Number of FAT entries (number of clusters + 2) */
DWORD fsize; /* Size of an FAT [sectors] */
DWORD volbase; /* Volume base sector */
DWORD fatbase; /* FAT base sector */
DWORD dirbase; /* Root directory base sector/cluster */
DWORD database; /* Data base sector */
DWORD winsect; /* Current sector appearing in the win[] */
BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */
} FATFS;
/* Object ID and allocation information (_FDID) */
typedef struct {
FATFS* fs; /* Pointer to the owner file system object */
WORD id; /* Owner file system mount ID */
BYTE attr; /* Object attribute */
BYTE stat; /* Object chain status (b1-0: =0:not contiguous, =2:contiguous (no data on FAT), =3:flagmented in this session, b2:sub-directory stretched) */
DWORD sclust; /* Object start cluster (0:no cluster or root directory) */
FSIZE_t objsize; /* Object size (valid when sclust != 0) */
#if _FS_EXFAT
DWORD n_cont; /* Size of first fragment, clusters - 1 (valid when stat == 3) */
DWORD n_frag; /* Size of last fragment needs to be written (valid when not zero) */
DWORD c_scl; /* Containing directory start cluster (valid when sclust != 0) */
DWORD c_size; /* b31-b8:Size of containing directory, b7-b0: Chain status (valid when c_scl != 0) */
DWORD c_ofs; /* Offset in the containing directory (valid when sclust != 0 and non-directory object) */
#endif
#if _FS_LOCK != 0
UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */
#endif
} _FDID;
/* File object structure (FIL) */
typedef struct {
_FDID obj; /* Object identifier (must be the 1st member to detect invalid object pointer) */
BYTE flag; /* File status flags */
BYTE err; /* Abort flag (error code) */
FSIZE_t fptr; /* File read/write pointer (Zeroed on file open) */
DWORD clust; /* Current cluster of fpter (invalid when fptr is 0) */
DWORD sect; /* Sector number appearing in buf[] (0:invalid) */
#if !_FS_READONLY
DWORD dir_sect; /* Sector number containing the directory entry */
BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */
#endif
#if _USE_FASTSEEK
DWORD* cltbl; /* Pointer to the cluster link map table (nulled on open, set by application) */
#endif
#if !_FS_TINY
BYTE buf[_MAX_SS]; /* File private data read/write window */
#endif
} FIL;
/* Directory object structure (DIR) */
typedef struct {
_FDID obj; /* Object identifier */
DWORD dptr; /* Current read/write offset */
DWORD clust; /* Current cluster */
DWORD sect; /* Current sector (0:Read operation has terminated) */
BYTE* dir; /* Pointer to the directory item in the win[] */
BYTE fn[12]; /* SFN (in/out) {body[8],ext[3],status[1]} */
#if _USE_LFN != 0
DWORD blk_ofs; /* Offset of current entry block being processed (0xFFFFFFFF:Invalid) */
#endif
#if _USE_FIND
const TCHAR* pat; /* Pointer to the name matching pattern */
#endif
} DIR;
/* File information structure (FILINFO) */
typedef struct {
FSIZE_t fsize; /* File size */
WORD fdate; /* Modified date */
WORD ftime; /* Modified time */
BYTE fattrib; /* File attribute */
#if _USE_LFN != 0
TCHAR altname[13]; /* Altenative file name */
TCHAR fname[_MAX_LFN + 1]; /* Primary file name */
#else
TCHAR fname[13]; /* File name */
#endif
} FILINFO;
/* File function return code (FRESULT) */
typedef enum {
FR_OK = 0, /* (0) Succeeded */
FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
FR_INT_ERR, /* (2) Assertion failed */
FR_NOT_READY, /* (3) The physical drive cannot work */
FR_NO_FILE, /* (4) Could not find the file */
FR_NO_PATH, /* (5) Could not find the path */
FR_INVALID_NAME, /* (6) The path name format is invalid */
FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
FR_EXIST, /* (8) Access denied due to prohibited access */
FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
FR_NOT_ENABLED, /* (12) The volume has no work area */
FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any problem */
FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_LOCK */
FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
} FRESULT;
/*--------------------------------------------------------------*/
/* FatFs module application interface */
/*
//MOVED TO API
FRESULT f_open(FIL* fp, const TCHAR* path, BYTE mode); / Open or create a file *
FRESULT f_close(FIL* fp); / Close an open file object *
FRESULT f_read(FIL* fp, void* buff, UINT btr, UINT* br); / Read data from the file *
FRESULT f_write(FIL* fp, const void* buff, UINT btw, UINT* bw); / Write data to the file *
FRESULT f_lseek(FIL* fp, FSIZE_t ofs); / Move file pointer of the file object *
FRESULT f_truncate(FIL* fp); / Truncate the file *
FRESULT f_sync(FIL* fp); / Flush cached data of the writing file *
FRESULT f_opendir(DIR* dp, const TCHAR* path); / Open a directory *
FRESULT f_closedir(DIR* dp); / Close an open directory *
FRESULT f_readdir(DIR* dp, FILINFO* fno); / Read a directory item *
FRESULT f_findfirst(DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); / Find first file *
FRESULT f_findnext(DIR* dp, FILINFO* fno); / Find next file *
FRESULT f_mkdir(const TCHAR* path); / Create a sub diectory *
FRESULT f_unlink(const TCHAR* path); / Delete an existing fileor directory *
FRESULT f_rename(const TCHAR* path_old, const TCHAR* path_new); / Rename/Move a file or directory *
FRESULT f_stat(const TCHAR* path, FILINFO* fno); / Get file status *
FRESULT f_chmod(const TCHAR* path, BYTE attr, BYTE mask); / Change attribute of a file/dir *
FRESULT f_utime(const TCHAR* path, const FILINFO* fno); / Change timestamp of a file/dir *
FRESULT f_chdir(const TCHAR* path); / Change current directory *
FRESULT f_chdrive(const TCHAR* path); / Change current drive *
FRESULT f_getcwd(TCHAR* buff, UINT len); / Get current directory *
FRESULT f_getfree(const TCHAR* path, DWORD* nclst, FATFS** fatfs); / Get number of free clusters on the drive *
FRESULT f_getlabel(const TCHAR* path, TCHAR* label, DWORD* vsn); / Get volume label *
FRESULT f_setlabel(const TCHAR* label); / Set volume label *
FRESULT f_forward(FIL* fp, UINT (*func)(const BYTE*, UINT), UINT btf, UINT* bf); / Forward data to the stream *
FRESULT f_expand(FIL* fp, FSIZE_t szf, BYTE opt); / Allocate a contiguous block to the file *
FRESULT f_mount(FATFS* fs, const TCHAR* path, BYTE opt); / Mount/Unmount a logical drive *
FRESULT f_mkfs(const TCHAR* path, BYTE opt, DWORD au, void* work, UINT len); / Create a FAT volume *
FRESULT f_fdisk(BYTE pdrv, const DWORD* szt, void* work); / Divide a physical drive into some partitions *
int f_putc(TCHAR c, FIL* fp); / Put a character to the file *
int f_puts(const TCHAR* str, FIL* cp); / Put a string to the file *
int f_printf(FIL* fp, const TCHAR* str, ...); / Put a formatted string to the file *
TCHAR* f_gets(TCHAR* buff, int len, FIL* fp); / Get a string from the file *
*/
#define f_eof(fp) ((int)((fp)->fptr == (fp)->obj.objsize))
#define f_error(fp) ((fp)->err)
#define f_tell(fp) ((fp)->fptr)
#define f_size(fp) ((fp)->obj.objsize)
#define f_rewind(fp) f_lseek((fp), 0)
#define f_rewinddir(dp) f_readdir((dp), 0)
#define f_rmdir(path) f_unlink(path)
#ifndef EOF
#define EOF (-1)
#endif
/*--------------------------------------------------------------*/
/* Flags and offset address */
/* File access mode and open method flags (3rd argument of f_open) */
#define FA_READ 0x01
#define FA_WRITE 0x02
#define FA_OPEN_EXISTING 0x00
#define FA_CREATE_NEW 0x04
#define FA_CREATE_ALWAYS 0x08
#define FA_OPEN_ALWAYS 0x10
#define FA_OPEN_APPEND 0x30
/* Fast seek controls (2nd argument of f_lseek) */
#define CREATE_LINKMAP ((FSIZE_t)0 - 1)
/* Format options (2nd argument of f_mkfs) */
#define FM_FAT 0x01
#define FM_FAT32 0x02
#define FM_EXFAT 0x04
#define FM_ANY 0x07
#define FM_SFD 0x08
/* Filesystem type (FATFS.fs_type) */
#define FS_FAT12 1
#define FS_FAT16 2
#define FS_FAT32 3
#define FS_EXFAT 4
/* File attribute bits for directory entry (FILINFO.fattrib) */
#define AM_RDO 0x01 /* Read only */
#define AM_HID 0x02 /* Hidden */
#define AM_SYS 0x04 /* System */
#define AM_DIR 0x10 /* Directory */
#define AM_ARC 0x20 /* Archive */
#ifdef __cplusplus
}
#endif
#include "fileext.hpp"
#endif /* _FATFS */
firmware/standalone/digitalrain/ffconf.h
+242
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@@ -0,0 +1,242 @@
/* CHIBIOS FIX */
/*---------------------------------------------------------------------------/
/ FatFs - FAT file system module configuration file
/---------------------------------------------------------------------------*/
#define _FFCONF 68300 /* Revision ID */
/*---------------------------------------------------------------------------/
/ Function Configurations
/---------------------------------------------------------------------------*/
#define _FS_READONLY 0
/* This option switches read-only configuration. (0:Read/Write or 1:Read-only)
/ Read-only configuration removes writing API functions, f_write(), f_sync(),
/ f_unlink(), f_mkdir(), f_chmod(), f_rename(), f_truncate(), f_getfree()
/ and optional writing functions as well. */
#define _FS_MINIMIZE 0
/* This option defines minimization level to remove some basic API functions.
/
/ 0: All basic functions are enabled.
/ 1: f_stat(), f_getfree(), f_unlink(), f_mkdir(), f_truncate() and f_rename()
/ are removed.
/ 2: f_opendir(), f_readdir() and f_closedir() are removed in addition to 1.
/ 3: f_lseek() function is removed in addition to 2. */
#define _USE_STRFUNC 1
/* This option switches string functions, f_gets(), f_putc(), f_puts() and
/ f_printf().
/
/ 0: Disable string functions.
/ 1: Enable without LF-CRLF conversion.
/ 2: Enable with LF-CRLF conversion. */
#define _USE_FIND 1
/* This option switches filtered directory read functions, f_findfirst() and
/ f_findnext(). (0:Disable, 1:Enable 2:Enable with matching altname[] too) */
#define _USE_MKFS 0
/* This option switches f_mkfs() function. (0:Disable or 1:Enable) */
#define _USE_FASTSEEK 1
/* This option switches fast seek function. (0:Disable or 1:Enable) */
#define _USE_EXPAND 0
/* This option switches f_expand function. (0:Disable or 1:Enable) */
#define _USE_CHMOD 1
/* This option switches attribute manipulation functions, f_chmod() and f_utime().
/ (0:Disable or 1:Enable) Also _FS_READONLY needs to be 0 to enable this option. */
#define _USE_LABEL 0
/* This option switches volume label functions, f_getlabel() and f_setlabel().
/ (0:Disable or 1:Enable) */
#define _USE_FORWARD 0
/* This option switches f_forward() function. (0:Disable or 1:Enable) */
/*---------------------------------------------------------------------------/
/ Locale and Namespace Configurations
/---------------------------------------------------------------------------*/
#define _CODE_PAGE 437
/* This option specifies the OEM code page to be used on the target system.
/ Incorrect setting of the code page can cause a file open failure.
/
/ 1 - ASCII (No support of extended character. Non-LFN cfg. only)
/ 437 - U.S.
/ 720 - Arabic
/ 737 - Greek
/ 771 - KBL
/ 775 - Baltic
/ 850 - Latin 1
/ 852 - Latin 2
/ 855 - Cyrillic
/ 857 - Turkish
/ 860 - Portuguese
/ 861 - Icelandic
/ 862 - Hebrew
/ 863 - Canadian French
/ 864 - Arabic
/ 865 - Nordic
/ 866 - Russian
/ 869 - Greek 2
/ 932 - Japanese (DBCS)
/ 936 - Simplified Chinese (DBCS)
/ 949 - Korean (DBCS)
/ 950 - Traditional Chinese (DBCS)
*/
#define _USE_LFN 3
#define _MAX_LFN 255
/* The _USE_LFN switches the support of long file name (LFN).
/
/ 0: Disable support of LFN. _MAX_LFN has no effect.
/ 1: Enable LFN with static working buffer on the BSS. Always NOT thread-safe.
/ 2: Enable LFN with dynamic working buffer on the STACK.
/ 3: Enable LFN with dynamic working buffer on the HEAP.
/
/ To enable the LFN, Unicode handling functions (option/unicode.c) must be added
/ to the project. The working buffer occupies (_MAX_LFN + 1) * 2 bytes and
/ additional 608 bytes at exFAT enabled. _MAX_LFN can be in range from 12 to 255.
/ It should be set 255 to support full featured LFN operations.
/ When use stack for the working buffer, take care on stack overflow. When use heap
/ memory for the working buffer, memory management functions, ff_memalloc() and
/ ff_memfree(), must be added to the project. */
#define _LFN_UNICODE 1
/* This option switches character encoding on the API. (0:ANSI/OEM or 1:UTF-16)
/ To use Unicode string for the path name, enable LFN and set _LFN_UNICODE = 1.
/ This option also affects behavior of string I/O functions. */
#define _STRF_ENCODE 3
/* When _LFN_UNICODE == 1, this option selects the character encoding ON THE FILE to
/ be read/written via string I/O functions, f_gets(), f_putc(), f_puts and f_printf().
/
/ 0: ANSI/OEM
/ 1: UTF-16LE
/ 2: UTF-16BE
/ 3: UTF-8
/
/ This option has no effect when _LFN_UNICODE == 0. */
#define _FS_RPATH 0
/* This option configures support of relative path.
/
/ 0: Disable relative path and remove related functions.
/ 1: Enable relative path. f_chdir() and f_chdrive() are available.
/ 2: f_getcwd() function is available in addition to 1.
*/
/*---------------------------------------------------------------------------/
/ Drive/Volume Configurations
/---------------------------------------------------------------------------*/
#define _VOLUMES 1
/* Number of volumes (logical drives) to be used. (1-10) */
#define _STR_VOLUME_ID 0
#define _VOLUME_STRS "RAM", "NAND", "CF", "SD", "SD2", "USB", "USB2", "USB3"
/* _STR_VOLUME_ID switches string support of volume ID.
/ When _STR_VOLUME_ID is set to 1, also pre-defined strings can be used as drive
/ number in the path name. _VOLUME_STRS defines the drive ID strings for each
/ logical drives. Number of items must be equal to _VOLUMES. Valid characters for
/ the drive ID strings are: A-Z and 0-9. */
#define _MULTI_PARTITION 0
/* This option switches support of multi-partition on a physical drive.
/ By default (0), each logical drive number is bound to the same physical drive
/ number and only an FAT volume found on the physical drive will be mounted.
/ When multi-partition is enabled (1), each logical drive number can be bound to
/ arbitrary physical drive and partition listed in the VolToPart[]. Also f_fdisk()
/ funciton will be available. */
#define _MIN_SS 512
#define _MAX_SS 512
/* These options configure the range of sector size to be supported. (512, 1024,
/ 2048 or 4096) Always set both 512 for most systems, generic memory card and
/ harddisk. But a larger value may be required for on-board flash memory and some
/ type of optical media. When _MAX_SS is larger than _MIN_SS, FatFs is configured
/ to variable sector size and GET_SECTOR_SIZE command needs to be implemented to
/ the disk_ioctl() function. */
#define _USE_TRIM 0
/* This option switches support of ATA-TRIM. (0:Disable or 1:Enable)
/ To enable Trim function, also CTRL_TRIM command should be implemented to the
/ disk_ioctl() function. */
#define _FS_NOFSINFO 0
/* If you need to know correct free space on the FAT32 volume, set bit 0 of this
/ option, and f_getfree() function at first time after volume mount will force
/ a full FAT scan. Bit 1 controls the use of last allocated cluster number.
/
/ bit0=0: Use free cluster count in the FSINFO if available.
/ bit0=1: Do not trust free cluster count in the FSINFO.
/ bit1=0: Use last allocated cluster number in the FSINFO if available.
/ bit1=1: Do not trust last allocated cluster number in the FSINFO.
*/
/*---------------------------------------------------------------------------/
/ System Configurations
/---------------------------------------------------------------------------*/
#define _FS_TINY 0
/* This option switches tiny buffer configuration. (0:Normal or 1:Tiny)
/ At the tiny configuration, size of file object (FIL) is shrinked _MAX_SS bytes.
/ Instead of private sector buffer eliminated from the file object, common sector
/ buffer in the file system object (FATFS) is used for the file data transfer. */
#define _FS_EXFAT 1
/* This option switches support of exFAT file system. (0:Disable or 1:Enable)
/ When enable exFAT, also LFN needs to be enabled. (_USE_LFN >= 1)
/ Note that enabling exFAT discards ANSI C (C89) compatibility. */
#define _FS_NORTC 0
#define _NORTC_MON 1
#define _NORTC_MDAY 1
#define _NORTC_YEAR 2016
/* The option _FS_NORTC switches timestamp functiton. If the system does not have
/ any RTC function or valid timestamp is not needed, set _FS_NORTC = 1 to disable
/ the timestamp function. All objects modified by FatFs will have a fixed timestamp
/ defined by _NORTC_MON, _NORTC_MDAY and _NORTC_YEAR in local time.
/ To enable timestamp function (_FS_NORTC = 0), get_fattime() function need to be
/ added to the project to get current time form real-time clock. _NORTC_MON,
/ _NORTC_MDAY and _NORTC_YEAR have no effect.
/ These options have no effect at read-only configuration (_FS_READONLY = 1). */
#define _FS_LOCK 0
/* The option _FS_LOCK switches file lock function to control duplicated file open
/ and illegal operation to open objects. This option must be 0 when _FS_READONLY
/ is 1.
/
/ 0: Disable file lock function. To avoid volume corruption, application program
/ should avoid illegal open, remove and rename to the open objects.
/ >0: Enable file lock function. The value defines how many files/sub-directories
/ can be opened simultaneously under file lock control. Note that the file
/ lock control is independent of re-entrancy. */
#define _FS_REENTRANT 1
#define _FS_TIMEOUT 1000
#define _SYNC_t void*
/* The option _FS_REENTRANT switches the re-entrancy (thread safe) of the FatFs
/ module itself. Note that regardless of this option, file access to different
/ volume is always re-entrant and volume control functions, f_mount(), f_mkfs()
/ and f_fdisk() function, are always not re-entrant. Only file/directory access
/ to the same volume is under control of this function.
/
/ 0: Disable re-entrancy. _FS_TIMEOUT and _SYNC_t have no effect.
/ 1: Enable re-entrancy. Also user provided synchronization handlers,
/ ff_req_grant(), ff_rel_grant(), ff_del_syncobj() and ff_cre_syncobj()
/ function, must be added to the project. Samples are available in
/ option/syscall.c.
/
/ The _FS_TIMEOUT defines timeout period in unit of time tick.
/ The _SYNC_t defines O/S dependent sync object type. e.g. HANDLE, ID, OS_EVENT*,
/ SemaphoreHandle_t and etc. A header file for O/S definitions needs to be
/ included somewhere in the scope of ff.h. */
/* #include <windows.h> // O/S definitions */
/*--- End of configuration options ---*/
firmware/standalone/digitalrain/fileext.hpp
+42
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extern "C" FRESULT f_open(FIL* fp, const TCHAR* path, BYTE mode);
extern "C" FRESULT f_close(FIL* fp);
extern "C" FRESULT f_read(FIL* fp, void* buff, UINT btr, UINT* br);
extern "C" FRESULT f_write(FIL* fp, const void* buff, UINT btw, UINT* bw);
extern "C" FRESULT f_lseek(FIL* fp, FSIZE_t ofs);
extern "C" FRESULT f_truncate(FIL* fp);
extern "C" FRESULT f_sync(FIL* fp);
extern "C" FRESULT f_opendir(DIR* dp, const TCHAR* path);
extern "C" FRESULT f_closedir(DIR* dp);
extern "C" FRESULT f_readdir(DIR* dp, FILINFO* fno);
extern "C" FRESULT f_findfirst(DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern);
extern "C" FRESULT f_findnext(DIR* dp, FILINFO* fno);
extern "C" FRESULT f_mkdir(const TCHAR* path);
extern "C" FRESULT f_unlink(const TCHAR* path);
extern "C" FRESULT f_rename(const TCHAR* path_old, const TCHAR* path_new);
extern "C" FRESULT f_stat(const TCHAR* path, FILINFO* fno);
extern "C" FRESULT f_chmod(const TCHAR* path, BYTE attr, BYTE mask);
extern "C" FRESULT f_utime(const TCHAR* path, const FILINFO* fno);
extern "C" FRESULT f_chdir(const TCHAR* path);
extern "C" FRESULT f_chdrive(const TCHAR* path);
extern "C" FRESULT f_getcwd(TCHAR* buff, UINT len);
extern "C" FRESULT f_getfree(const TCHAR* path, DWORD* nclst, FATFS** fatfs);
extern "C" FRESULT f_getlabel(const TCHAR* path, TCHAR* label, DWORD* vsn);
extern "C" FRESULT f_setlabel(const TCHAR* label);
extern "C" FRESULT f_forward(FIL* fp, UINT (*func)(const BYTE*, UINT), UINT btf, UINT* bf);
extern "C" FRESULT f_expand(FIL* fp, FSIZE_t szf, BYTE opt);
extern "C" FRESULT f_mount(FATFS* fs, const TCHAR* path, BYTE opt);
extern "C" FRESULT f_mkfs(const TCHAR* path, BYTE opt, DWORD au, void* work, UINT len);
extern "C" FRESULT f_fdisk(BYTE pdrv, const DWORD* szt, void* work);
extern "C" int f_putc(TCHAR c, FIL* fp);
extern "C" int f_puts(const TCHAR* str, FIL* cp);
extern "C" int f_printf(FIL* fp, const TCHAR* str, ...);
extern "C" TCHAR* f_gets(TCHAR* buff, int len, FIL* fp);
firmware/standalone/digitalrain/integer.h
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/*-------------------------------------------*/
/* Integer type definitions for FatFs module */
/*-------------------------------------------*/
#ifndef _FF_INTEGER
#define _FF_INTEGER
#ifdef _WIN32 /* FatFs development platform */
#include <windows.h>
#include <tchar.h>
typedef unsigned __int64 QWORD;
#else /* Embedded platform */
/* These types MUST be 16-bit or 32-bit */
typedef int INT;
typedef unsigned int UINT;
/* This type MUST be 8-bit */
typedef unsigned char BYTE;
/* These types MUST be 16-bit */
typedef short SHORT;
typedef unsigned short WORD;
typedef unsigned short WCHAR;
/* These types MUST be 32-bit */
typedef long LONG;
typedef unsigned long DWORD;
/* This type MUST be 64-bit (Remove this for ANSI C (C89) compatibility) */
typedef unsigned long long QWORD;
#endif
#endif
firmware/standalone/digitalrain/main.cpp
+178
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/*
* Copyright (C) 2024 Bernd Herzog
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "standalone_app.hpp"
#include "digitalrain.hpp"
#include <memory>
const standalone_application_api_t* _api;
extern "C" {
__attribute__((section(".standalone_application_information"), used)) standalone_application_information_t _standalone_application_information = {
/*.header_version = */ 2,
/*.app_name = */ "DigitalRain",
/*.bitmap_data = */ {
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0xFC,
0x3F,
0xFE,
0x7F,
0x02,
0x40,
0xBA,
0x45,
0x02,
0x40,
0xFE,
0x7F,
0xFE,
0x7F,
0x92,
0x7C,
0x92,
0x7C,
0xFC,
0x3F,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
},
/*.icon_color = 16 bit: 5R 6G 5B*/ 0x0000FFE0,
/*.menu_location = */ app_location_t::GAMES,
/*.initialize_app = */ initialize,
/*.on_event = */ on_event,
/*.shutdown = */ shutdown,
/*PaintViewMirror */ PaintViewMirror,
/*OnTouchEvent */ OnTouchEvent,
/*OnFocus */ OnFocus,
/*OnKeyEvent */ OnKeyEvent,
/*OnEncoder */ OnEncoder,
/*OnKeyboard */ OnKeyboad};
}
/* Implementing abort() eliminates requirement for _getpid(), _kill(), _exit(). */
extern "C" void abort() {
while (true);
}
// replace memory allocations to use heap from chibios
extern "C" void* malloc(size_t size) {
return _api->malloc(size);
}
extern "C" void* calloc(size_t num, size_t size) {
return _api->calloc(num, size);
}
extern "C" void* realloc(void* p, size_t size) {
return _api->realloc(p, size);
}
extern "C" void free(void* p) {
_api->free(p);
}
// redirect std lib memory allocations (sprintf, etc.)
extern "C" void* __wrap__malloc_r(size_t size) {
return _api->malloc(size);
}
extern "C" void __wrap__free_r(void* p) {
_api->free(p);
}
// redirect file I/O
extern "C" FRESULT f_open(FIL* fp, const TCHAR* path, BYTE mode) {
return _api->f_open(fp, path, mode);
}
extern "C" FRESULT f_close(FIL* fp) {
return _api->f_close(fp);
}
extern "C" FRESULT f_read(FIL* fp, void* buff, UINT btr, UINT* br) {
return _api->f_read(fp, buff, btr, br);
}
extern "C" FRESULT f_write(FIL* fp, const void* buff, UINT btw, UINT* bw) {
return _api->f_write(fp, buff, btw, bw);
}
extern "C" FRESULT f_lseek(FIL* fp, FSIZE_t ofs) {
return _api->f_lseek(fp, ofs);
}
extern "C" FRESULT f_truncate(FIL* fp) {
return _api->f_truncate(fp);
}
extern "C" FRESULT f_sync(FIL* fp) {
return _api->f_sync(fp);
}
extern "C" FRESULT f_opendir(DIR* dp, const TCHAR* path) {
return _api->f_opendir(dp, path);
}
extern "C" FRESULT f_closedir(DIR* dp) {
return _api->f_closedir(dp);
}
extern "C" FRESULT f_readdir(DIR* dp, FILINFO* fno) {
return _api->f_readdir(dp, fno);
}
extern "C" FRESULT f_findfirst(DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern) {
return _api->f_findfirst(dp, fno, path, pattern);
}
extern "C" FRESULT f_findnext(DIR* dp, FILINFO* fno) {
return _api->f_findnext(dp, fno);
}
extern "C" FRESULT f_mkdir(const TCHAR* path) {
return _api->f_mkdir(path);
}
extern "C" FRESULT f_unlink(const TCHAR* path) {
return _api->f_unlink(path);
}
extern "C" FRESULT f_rename(const TCHAR* path_old, const TCHAR* path_new) {
return _api->f_rename(path_old, path_new);
}
extern "C" FRESULT f_stat(const TCHAR* path, FILINFO* fno) {
return _api->f_stat(path, fno);
}
extern "C" FRESULT f_utime(const TCHAR* path, const FILINFO* fno) {
return _api->f_utime(path, fno);
}
extern "C" FRESULT f_getfree(const TCHAR* path, DWORD* nclst, FATFS** fatfs) {
return _api->f_getfree(path, nclst, fatfs);
}
extern "C" FRESULT f_mount(FATFS* fs, const TCHAR* path, BYTE opt) {
return _api->f_mount(fs, path, opt);
}
extern "C" int f_putc(TCHAR c, FIL* fp) {
return _api->f_putc(c, fp);
}
extern "C" int f_puts(const TCHAR* str, FIL* cp) {
return _api->f_puts(str, cp);
}
extern "C" int f_printf(FIL* fp, const TCHAR* str, ...) {
return _api->f_printf(fp, str);
}
extern "C" TCHAR* f_gets(TCHAR* buff, int len, FIL* fp) {
return _api->f_gets(buff, len, fp);
}
firmware/standalone/digitalrain/ui/bmp.hpp
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/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#pragma pack(push, 1)
struct bmp_header_t {
uint16_t signature;
uint32_t size;
uint16_t reserved_1;
uint16_t reserved_2;
uint32_t image_data;
uint32_t BIH_size;
uint32_t width;
int32_t height; // can be negative, to signal the bottom-up or reserve status
uint16_t planes;
uint16_t bpp;
uint32_t compression;
uint32_t data_size;
uint32_t h_res;
uint32_t v_res;
uint32_t colors_count;
uint32_t icolors_count;
};
#pragma pack(pop)
#pragma pack(push, 1)
struct bmp_palette_t {
struct color_t {
uint8_t B;
uint8_t G;
uint8_t R;
uint8_t A;
} color[16];
};
#pragma pack(pop)
firmware/standalone/digitalrain/ui/bmpfile.cpp
+306
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/*
* Copyright (C) 2024 HTotoo
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "bmpfile.hpp"
bool BMPFile::is_loaded() {
return is_opened;
}
// fix height info
uint32_t BMPFile::get_real_height() {
if (!is_opened) return 0;
return bmp_header.height >= 0 ? (uint32_t)bmp_header.height : (uint32_t)(-1 * bmp_header.height);
}
// get bmp width
uint32_t BMPFile::get_width() {
if (!is_opened) return 0;
return bmp_header.width;
}
// get if the rows are bottom up (for most bmp), or up to bottom (negative height, we use it for write)
bool BMPFile::is_bottomup() {
return (bmp_header.height >= 0);
}
BMPFile::~BMPFile() {
close();
}
// closes file
void BMPFile::close() {
is_opened = false;
bmpimage.close();
}
// creates a new bmp file. hardcoded to 3 byte (24-bit) colour depth
bool BMPFile::create(const std::filesystem::path& file, uint32_t x, uint32_t y) {
is_opened = false;
is_read_only = true;
bmpimage.close(); // if already open, close before open a new
if (file_exists(file)) {
delete_file(file); // overwrite
}
auto result = bmpimage.open(file, false, true);
if (!result.value().ok()) return false;
file_pos = 0;
byte_per_row = (x * 3 % 4 == 0) ? x * 3 : (x * 3 + (4 - ((x * 3) % 4))); // with padding
bmpimage.seek(file_pos);
bmp_header.signature = 0x4D42;
bmp_header.planes = 1;
bmp_header.compression = 0;
bmp_header.bpp = 24; // 3 byte depth
bmp_header.width = x;
bmp_header.height = 0; // for now, will expand
bmp_header.image_data = 0x36;
bmp_header.BIH_size = 0x28;
bmp_header.h_res = 100;
bmp_header.v_res = 100;
byte_per_px = 3;
type = 1;
bmp_header.size = sizeof(bmp_header) + get_real_height() * byte_per_row; // with padding! --will update later with expand
bmp_header.data_size = bmp_header.size - sizeof(bmp_header_t);
bmp_header.colors_count = 0;
bmp_header.icolors_count = 0;
bmpimage.write(&bmp_header, sizeof(bmp_header_t));
file_pos = bmp_header.image_data;
is_opened = true;
is_read_only = false;
if (!expand_y(y)) return false; // will fill with 0, and update header data
seek(0, 0);
return true;
}
// opens the file and parses header data. return true on success
bool BMPFile::open(const std::filesystem::path& file, bool readonly) {
is_opened = false;
is_read_only = true;
bmpimage.close();
auto result = bmpimage.open(file, readonly, false);
if (!result.value().ok()) return false;
file_pos = 0;
bmpimage.seek(file_pos);
bmpimage.read(&bmp_header, sizeof(bmp_header_t));
if (!((bmp_header.signature == 0x4D42) &&
(bmp_header.planes == 1) &&
(bmp_header.compression == 0 || bmp_header.compression == 3))) {
return false;
}
switch (bmp_header.bpp) {
case 8:
type = 4;
byte_per_px = 1;
// bmpimage.seek(sizeof(bmp_header_t));
// bmpimage.read(color_palette, 1024);
return false; // niy
break;
case 16:
byte_per_px = 2;
type = 5;
if (bmp_header.compression == 3) {
return false;
} // niy
break;
case 24:
type = 1;
byte_per_px = 3;
break;
case 32:
type = 2;
byte_per_px = 4;
break;
default:
// not supported
return false;
}
byte_per_row = (bmp_header.width * byte_per_px + 3) & ~3;
file_pos = bmp_header.image_data;
is_opened = true;
is_read_only = readonly;
currx = 0;
curry = 0;
return true;
}
// jumps to next pixel. false on the end
bool BMPFile::advance_curr_px(uint32_t num = 1) {
if (curry >= get_real_height()) return false;
uint32_t rowsToAdvance = (currx + num) / bmp_header.width;
uint32_t nx = (currx + num) % bmp_header.width;
uint32_t ny = curry + rowsToAdvance;
if (ny >= get_real_height()) {
return false;
}
seek(nx, ny);
return true;
}
// reads next px, then advance the pos (and seek). return false on error
bool BMPFile::read_next_px(ui::Color& px, bool seek = true) {
if (!is_opened) return false;
uint8_t buffer[4];
auto res = bmpimage.read(buffer, byte_per_px);
if (res.is_error()) return false;
switch (type) {
case 5: {
// ARGB1555
uint16_t val = buffer[0] | (buffer[1] << 8);
// Extract components
//*a = (val >> 15) & 0x01; // 1-bit alpha
uint8_t r = (val >> 10) & 0x1F; // 5-bit red
uint8_t g = (val >> 5) & 0x1F; // 5-bit green
uint8_t b = (val)&0x1F; // 5-bit blue
// expand
r = (r << 3) | (r >> 2);
g = (g << 3) | (g >> 2);
b = (b << 3) | (b >> 2);
px = ui::Color(r, g, b);
break;
}
case 2: // 32
px = ui::Color(buffer[2], buffer[1], buffer[0]);
break;
case 4: { // 8-bit
// uint8_t index = buffer[0];
// px = ui::Color(color_palette[index][2], color_palette[index][1], color_palette[index][0]); // Palette is BGR
// px = ui::Color(buffer[0]); // niy, since needs a lot of ram for the palette
break;
}
case 1: // 24
default:
px = ui::Color(buffer[2], buffer[1], buffer[0]);
break;
}
if (seek) advance_curr_px();
return true;
}
// if you set this, then the expanded part (or the newly created) will be filled with this color. but the expansion or the creation will be slower.
void BMPFile::set_bg_color(ui::Color background) {
bg = background;
use_bg = true;
}
// delete bg color. default. creation or expansion will be fast, but the file will contain random garbage. no problem if you write all pixels later.
void BMPFile::delete_bg_color() {
use_bg = false;
}
// writes a color data to the current position, and advances 1 px. true on success, false on error
bool BMPFile::write_next_px(ui::Color& px) {
if (!is_opened || is_read_only) return false;
uint8_t buffer[4];
switch (type) {
case 5:
case 0: // R5G6B5
case 3: // A1R5G5B5
if (!type) {
buffer[0] = (px.r() << 3) | (px.g() >> 3);
buffer[1] = (px.g() << 5) | px.b();
} else {
buffer[0] = (1 << 7) | (px.r() << 2) | (px.g() >> 3);
buffer[1] = (px.g() << 5) | px.b();
}
break;
case 1: // 24
default:
buffer[2] = px.r();
buffer[1] = px.g();
buffer[0] = px.b();
break;
case 2: // 32
buffer[2] = px.r();
buffer[1] = px.g();
buffer[0] = px.b();
buffer[3] = 255;
break;
case 4: // 8-bit
return false;
}
auto res = bmpimage.write(buffer, byte_per_px);
if (res.is_error()) return false;
advance_curr_px();
return true;
}
// positions in the file to the given pixel. 0 based indexing
bool BMPFile::seek(uint32_t x, uint32_t y) {
if (!is_opened) return false;
if (x >= bmp_header.width) return false;
if (y >= get_real_height()) return false;
if (!BMPFile::is_bottomup()) {
file_pos = bmp_header.image_data; // nav to start pos.
file_pos += y * byte_per_row;
file_pos += x * byte_per_px;
bmpimage.seek(file_pos);
currx = x;
curry = y;
} else {
file_pos = bmp_header.image_data; // nav to start pos.
file_pos += (get_real_height() - y - 1) * byte_per_row;
file_pos += x * byte_per_px;
bmpimage.seek(file_pos);
currx = x;
curry = y;
}
return true;
}
// expands the image with a delta (y). also seek's t it's begining. in bottumup format, it should be used carefully!
bool BMPFile::expand_y_delta(uint32_t delta_y) {
return expand_y(get_real_height() + delta_y);
}
// expands the image to a new y size. also seek's t it's begining. in bottumup format, it should be used carefully!
bool BMPFile::expand_y(uint32_t new_y) {
if (!is_opened) return false; // not yet opened
uint32_t old_height = get_real_height();
if (new_y < old_height) return true; // already bigger
if (is_read_only) return false; // can't expand
uint32_t delta = (new_y - old_height) * byte_per_row;
bmp_header.size += delta;
bmp_header.data_size += delta;
bmp_header.height = -1 * new_y; //-1*, so no bottom-up structure needed. easier to expand.
bmpimage.seek(0);
bmpimage.write(&bmp_header, sizeof(bmp_header)); // overwrite header
bmpimage.seek(bmp_header.size); // seek to new end to expand
// fill with bg color if needed
if (use_bg) {
seek(0, old_height); // to the new begin
size_t newpxcount = ((new_y - old_height) * bmp_header.width);
for (size_t i = 0; i < newpxcount; ++i)
write_next_px(bg);
}
if (is_bottomup()) {
seek(0, new_y - old_height); // seek to the new chunk begin
} else {
seek(0, curry + 1); // seek to the begin of the new chunk
}
return true;
}

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