Initial Commit

.gitignore

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+#ignore all .o files
+src/**/*.o
+
+#ignore all swp files
+**/*.swp
+
+#ignore all executables, but still keep the bin folder
+bin/*
+!bin/.gitkeep
+
+#ignore config file
+src/config.hpp

Makefile

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+###############################################################################
+# Tyler Perkins
+# 7-21-21
+# Makefile
+#
+
+CC = g++
+
+FLAGS  = -pipe
+
+CFLAGS  = -Wall
+CFLAGS += -Ofast
+CFLAGS += -std=c++17
+#CFLAGS += -g
+#CFLAGS += -pg
+
+#required for rss-cli
+LIBRARIES = -lcurl
+#required for sdl2
+LIBRARIES += `pkg-config --cflags --libs sdl2`
+LIBRARIES += `sdl2-config --libs --cflags` -lSDL2_image -lSDL2_ttf
+
+SRC = $(shell find ./src -name '*.cpp')
+OBJ = $(subst .cpp,.o,$(SRC))
+BIN = ./bin
+
+PREFIX    = /usr/local
+MANPREFIX = $(PREFIX)/share/man
+DATA      = /usr/share/dashboard
+DATA_IMG  = $(DATA)/img
+DATA_FONT = $(DATA)/font
+
+TARGET = dashboard.out
+
+MAKEFLAGS += --jobs=4
+
+DEFINITIONS  = -DDATA='"$(DATA)"'
+DEFINITIONS += -DDATA_IMG='"$(DATA_IMG)"'
+DEFINITIONS += -DDATA_FONT='"$(DATA_FONT)"'
+
+all : $(OBJ)
+	@echo LD $@
+	@$(CC) $(FLAGS) $(CFLAGS) -o $(BIN)/$(TARGET) $(OBJ) $(LIBRARIES)
+
+.cpp.o :
+	@echo CC $<
+	@$(CC) $(FLAGS) $(CFLAGS) $(LIBRARIES) $(DEFINITIONS) -c $< -o $@
+
+src/config.hpp :
+	cp src/config.def.hpp src/config.hpp
+
+
+$(OBJ): src/config.hpp
+
+install : all
+	mkdir -p $(PREFIX)/bin
+	cp -f $(BIN)/$(TARGET) $(PREFIX)/bin
+	chmod 755 $(PREFIX)/bin/$(TARGET)
+	#install resources
+	mkdir -p $(DATA) $(DATA_IMG) $(DATA_FONT)
+	cp -fr ./img  $(DATA)
+	cp -fr ./font $(DATA)
+	chmod -R 745  $(DATA)
+
+uninstall :
+	rm -rf $(PREFIX)/bin/$(TARGET)
+	rm -rf $(DATA)
+
+clean :
+	find . -type f -name '*.o' -delete
+	rm -rf $(BIN)/*
+
+clean-config :
+	rm -rf src/config.hpp

README.md

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+dashboard
+=========
+
+My dashboard, for my house. Display RSS feeds and other custom bits of info via
+html. This isnt pretty, its just meant to work
+
+Features/TODO
+=============
+
+- Write straight to framebuffer (sdl2)
+- Display Weather rss feed
+- Display camera feed
+- Display who is home
+- Display network speed
+- Display plex currently playing
+
+Depends on
+==========
+
+- sdl2
+- stdlib
+
+optional dependencies
+---------------------
+
+- rapidxml
+- libcurl
+
+Building sdl2 on rpi
+--------------------
+Run in this order
+```
+sudo apt-get install libdrm-dev libgdm-dev
+```
+
+Next downlad the SDL source tarball
+
+```
+cd sdl-src
+./configure --enable-video-kmsdrm
+make -j4
+sudo make install
+```
+
+compile the test.cpp file provided in ./tests . There should be output on the
+screen as flashing. Feel free to change the desired graphics driver in the
+raspberry pi config
+
+Usage
+=====
+
+To compile:
+
+`make all`
+
+To install:
+
+`make install`
+
+To uninstall:
+
+`make uninstall`

src/config.def.hpp

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+///////////////////////////////////////////////////////////////////////////////
+// Tyler Perkins
+// 8-23-21
+// Configuration file
+//
+
+#pragma once
+
+#include <stdint.h>
+#include <SDL2/SDL_image.h>
+
+//SCREEN_{WIDTH, HEIGHT}
+// Width and height of the screen/window
+constexpr int SCREEN_WIDTH  = 1920;
+constexpr int SCREEN_HEIHGT = 1080;
+
+// MAX_FRAMERATE
+// The aprox framerate at runtime
+constexpr int MAX_FRAMERATE = 60;
+
+// WINDOW_TITLE
+// Title of the default window. Does not matter if not using X11
+constexpr char WINDOW_TITLE[] = "Dashboard";
+
+// BOARD_{RED, GREEN, BLUE}
+// Default color used
+constexpr uint8_t BOARD_RED   = 0xFF;
+constexpr uint8_t BOARD_GREEN = 0xFF;
+constexpr uint8_t BOARD_BLUE  = 0xFF;
+
+// SDL_FLAGS
+// SDL init() flags
+constexpr uint32_t SDL_FLAGS = 0
+    | SDL_INIT_VIDEO
+    //| SDL_INIT_AUDIO
+    //| SDL_INIT_TIMER
+    //| SDL_INIT_EVENTS
+    ;
+
+// SDL_WINDOW_FLAGS
+// SDL init window flags
+constexpr uint32_t SDL_WINDOW_FLAGS = 0
+    //| SDL_WINDOW_FULLSCREEN
+    | SDL_WINDOW_FULLSCREEN_DESKTOP
+
+    | SDL_WINDOW_SHOWN
+    // | SDL_WINDOW_HIDDEN
+
+    | SDL_WINDOW_OPENGL
+    //| SDL_WINDOW_VULKAN
+    //| SDL_WINDOW_METAL
+
+    | SDL_WINDOW_BORDERLESS
+    //| SDL_WINDOW_RESIZEABLE
+    //| SDL_WINDOW_MINIMIZED
+    //| SDL_WINDOW_MAXIMIZED
+    ;
+
+// SDL_SHOW_CURSOR
+// Toggle if the cursor is shown on screen
+constexpr int SDL_SHOW_CURSOR = 0
+    | SDL_ENABLE
+    // | SDL_DISABLE
+    ;
+
+// IMG_FLAGS
+// Enable support for different image formats
+constexpr int IMG_FLAGS = 0
+    | IMG_INIT_JPG
+    | IMG_INIT_PNG
+    //| IMG_INIT_TIF
+    ;
+
+// DATA_DIR
+// Where all resources will be
+// Keep this as DATA to use the install dir set in the makefile
+constexpr char DATA_DIR[]  = DATA;
+
+// IMAGE_DIR
+// Where all images will be
+// Keep this as DATA_IMG to use img dir set in the makefile
+constexpr char IMAGE_DIR[] = DATA_IMG;
+
+// FONT_DIR
+// Where all fonts will be
+// Keep this as DATA_FONT to use font dir set in the makefile
+constexpr char FONT_DIR[]  = DATA_FONT;
+
+// IMAGE_LOCATIONS
+// Locations of all static images used
+static const char* IMAGE_LOCATIONS[] = {
+
+};

src/main.cpp

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+///////////////////////////////////////////////////////////////////////////////
+// Tyler Perkins
+// 8-23-21
+// Entry point
+//
+
+#include "config.hpp"
+
+
+
+int main(int argc, char** argv){
+
+
+    return 0;
+}

tests/Makefile

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+all :
+	g++ `pkg-config --cflags --libs sdl2` *.cpp

tests/test_sdl2_installed.cpp

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+#include <SDL.h>
+#include <iostream>
+#include <vector>
+
+int main( int argc, char** argv )
+{
+    SDL_Init( 0 );
+
+    std::cout << "Testing video drivers..." << '\n';
+    std::vector< bool > drivers( SDL_GetNumVideoDrivers() );
+    for( int i = 0; i < drivers.size(); ++i )
+    {
+        drivers[ i ] = ( 0 == SDL_VideoInit( SDL_GetVideoDriver( i ) ) );
+        SDL_VideoQuit();
+    }
+
+    std::cout << "SDL_VIDEODRIVER available:";
+    for( int i = 0; i < drivers.size(); ++i )
+    {
+        std::cout << " " << SDL_GetVideoDriver( i );
+    }
+    std::cout << '\n';
+
+    std::cout << "SDL_VIDEODRIVER usable   :";
+    for( int i = 0; i < drivers.size(); ++i )
+    {
+        if( !drivers[ i ] ) continue;
+        std::cout << " " << SDL_GetVideoDriver( i );
+    }
+    std::cout << '\n';
+
+    if( SDL_Init( SDL_INIT_VIDEO ) < 0 )
+    {
+        std::cerr << "SDL_Init(): " << SDL_GetError() << '\n';
+        return EXIT_FAILURE;
+    }
+    std::cout << "SDL_VIDEODRIVER selected : " << SDL_GetCurrentVideoDriver() << '\n';
+
+    SDL_Window* window = SDL_CreateWindow
+        (
+        "SDL2",
+        SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
+        640, 480,
+        SDL_WINDOW_SHOWN
+        );
+    if( nullptr == window )
+    {
+        std::cerr << "SDL_CreateWindow(): " << SDL_GetError() << '\n';
+        return EXIT_FAILURE;
+    }
+
+    std::cout << "SDL_RENDER_DRIVER available:";
+    for( int i = 0; i < SDL_GetNumRenderDrivers(); ++i )
+    {
+        SDL_RendererInfo info;
+        SDL_GetRenderDriverInfo( i, &info );
+        std::cout << " " << info.name;
+    }
+    std::cout << '\n';
+
+    SDL_Renderer* renderer = SDL_CreateRenderer( window, -1, SDL_RENDERER_ACCELERATED );
+    if( nullptr == renderer )
+    {
+        std::cerr << "SDL_CreateRenderer(): " << SDL_GetError() << '\n';
+        return EXIT_FAILURE;
+    }
+    SDL_RendererInfo info;
+    SDL_GetRendererInfo( renderer, &info );
+    std::cout << "SDL_RENDER_DRIVER selected : " << info.name << '\n';
+
+    bool running = true;
+    unsigned char i = 0;
+    while( running )
+    {
+        SDL_Event ev;
+        while( SDL_PollEvent( &ev ) )
+        {
+            if( ( ev.type == SDL_QUIT ) ||
+                ( ev.type == SDL_KEYDOWN && ev.key.keysym.sym == SDLK_ESCAPE ) )
+            {
+                running = false;
+            }
+        }
+
+        SDL_SetRenderDrawColor( renderer, i, i, i, SDL_ALPHA_OPAQUE );
+        SDL_RenderClear( renderer );
+        SDL_RenderPresent( renderer );
+        i++;
+    }
+
+    SDL_DestroyRenderer( renderer );
+    SDL_DestroyWindow( window );
+    SDL_Quit();
+    return 0;
+}