From 70cb1210ba2f6e1d922922f66f32efcf7bec51e1 Mon Sep 17 00:00:00 2001 From: Bananymous <bananymousosq@gmail.com> Date: Wed, 3 Apr 2024 17:57:11 +0300 Subject: [PATCH] Add support for banan-os Add Makefile and implement required functions. --- doomgeneric/Makefile.banan_os | 58 +++++++ doomgeneric/doomgeneric_banan_os.cpp | 224 +++++++++++++++++++++++++++ 2 files changed, 282 insertions(+) create mode 100644 doomgeneric/Makefile.banan_os create mode 100644 doomgeneric/doomgeneric_banan_os.cpp diff --git a/doomgeneric/Makefile.banan_os b/doomgeneric/Makefile.banan_os new file mode 100644 index 0000000..453bed7 --- /dev/null +++ b/doomgeneric/Makefile.banan_os @@ -0,0 +1,58 @@ +################################################################ +# +# $Id:$ +# +# $Log:$ +# + +ifeq ($(V),1) + VB='' +else + VB=@ +endif + +CC=$(BANAN_TOOLCHAIN_PREFIX)/bin/$(BANAN_ARCH)-banan_os-gcc +CXX=$(BANAN_TOOLCHAIN_PREFIX)/bin/$(BANAN_ARCH)-banan_os-g++ +CFLAGS+=-O2 -g +CFLAGS+=-Wall -DNORMALUNIX -DLINUX -DSNDSERV -D_DEFAULT_SOURCE +CXXFLAGS+=$(CFLAGS) --std=c++20 +LDFLAGS+= +LIBS+= + +# subdirectory for objects +OBJDIR=build-$(BANAN_ARCH) +OUTPUT=$(OBJDIR)/doomgeneric + +SRC_DOOM = dummy.o am_map.o doomdef.o doomstat.o dstrings.o d_event.o d_items.o d_iwad.o d_loop.o d_main.o d_mode.o d_net.o f_finale.o f_wipe.o g_game.o hu_lib.o hu_stuff.o info.o i_cdmus.o i_endoom.o i_joystick.o i_scale.o i_sound.o i_system.o i_timer.o memio.o m_argv.o m_bbox.o m_cheat.o m_config.o m_controls.o m_fixed.o m_menu.o m_misc.o m_random.o p_ceilng.o p_doors.o p_enemy.o p_floor.o p_inter.o p_lights.o p_map.o p_maputl.o p_mobj.o p_plats.o p_pspr.o p_saveg.o p_setup.o p_sight.o p_spec.o p_switch.o p_telept.o p_tick.o p_user.o r_bsp.o r_data.o r_draw.o r_main.o r_plane.o r_segs.o r_sky.o r_things.o sha1.o sounds.o statdump.o st_lib.o st_stuff.o s_sound.o tables.o v_video.o wi_stuff.o w_checksum.o w_file.o w_main.o w_wad.o z_zone.o w_file_stdc.o i_input.o i_video.o doomgeneric.o doomgeneric_banan_os.o +OBJS += $(addprefix $(OBJDIR)/, $(SRC_DOOM)) + +all: $(OUTPUT) + +clean: + rm -rf $(OBJDIR) + rm -f $(OUTPUT) + rm -f $(OUTPUT).gdb + rm -f $(OUTPUT).map + +$(OUTPUT): $(OBJS) + @echo [Linking $@] + $(VB)$(CC) $(CFLAGS) $(LDFLAGS) $(OBJS) \ + -o $(OUTPUT) $(LIBS) -Wl,-Map,$(OUTPUT).map + @echo [Size] + -$(CROSS_COMPILE)size $(OUTPUT) + +$(OBJS): | $(OBJDIR) + +$(OBJDIR): + mkdir -p $(OBJDIR) + +$(OBJDIR)/%.o: %.c + @echo [Compiling $<] + $(VB)$(CC) $(CFLAGS) -c $< -o $@ + +$(OBJDIR)/%.o: %.cpp + @echo [Compiling $<] + $(VB)$(CXX) $(CXXFLAGS) -c $< -o $@ + +print: + @echo OBJS: $(OBJS) diff --git a/doomgeneric/doomgeneric_banan_os.cpp b/doomgeneric/doomgeneric_banan_os.cpp new file mode 100644 index 0000000..e32c861 --- /dev/null +++ b/doomgeneric/doomgeneric_banan_os.cpp @@ -0,0 +1,224 @@ +extern "C" +{ +#include "doomgeneric.h" +#include "doomkeys.h" +} + +#include <assert.h> +#include <ctype.h> +#include <fcntl.h> +#include <stdint.h> +#include <string.h> +#include <sys/banan-os.h> +#include <sys/framebuffer.h> +#include <sys/mman.h> +#include <time.h> + +#include <BAN/Math.h> +#include <kernel/Input/KeyEvent.h> + +extern "C" +{ + +static struct framebuffer_info_t s_fb_info; +static uint32_t* s_framebuffer = NULL; + +static int s_input_fd; + +static constexpr size_t s_key_queue_size = 16; +static unsigned short s_key_queue[s_key_queue_size]; +static size_t s_key_read_index = 0; +static size_t s_key_write_index = 0; + +void handle_key_input() +{ + Kernel::Input::KeyEvent event; + if (read(s_input_fd, &event, sizeof(event)) <= 0) + return; + + unsigned short doom_key = 0; + + switch (event.keycode) + { + case 109: + doom_key = KEY_ENTER; + break; + case 0: + doom_key = KEY_ESCAPE; + break; + case 193: + doom_key = KEY_LEFTARROW; + break; + case 192: + doom_key = KEY_UPARROW; + break; + case 195: + doom_key = KEY_RIGHTARROW; + break; + case 194: + doom_key = KEY_DOWNARROW; + break; + case 160: + case 165: + doom_key = KEY_FIRE; + break; + case 163: + doom_key = KEY_USE; + break; + case 128: + case 140: + doom_key = KEY_RSHIFT; + break; + + case 65: doom_key = tolower('Q'); break; + case 66: doom_key = tolower('W'); break; + case 67: doom_key = tolower('E'); break; + case 68: doom_key = tolower('R'); break; + case 69: doom_key = tolower('T'); break; + case 70: doom_key = tolower('Y'); break; + case 71: doom_key = tolower('U'); break; + case 72: doom_key = tolower('I'); break; + case 73: doom_key = tolower('O'); break; + case 74: doom_key = tolower('P'); break; + + case 97: doom_key = tolower('A'); break; + case 98: doom_key = tolower('S'); break; + case 99: doom_key = tolower('D'); break; + case 100: doom_key = tolower('F'); break; + case 101: doom_key = tolower('G'); break; + case 102: doom_key = tolower('H'); break; + case 103: doom_key = tolower('J'); break; + case 104: doom_key = tolower('K'); break; + case 105: doom_key = tolower('L'); break; + + case 130: doom_key = tolower('Z'); break; + case 131: doom_key = tolower('X'); break; + case 132: doom_key = tolower('C'); break; + case 133: doom_key = tolower('V'); break; + case 134: doom_key = tolower('B'); break; + case 135: doom_key = tolower('N'); break; + case 136: doom_key = tolower('M'); break; + } + + doom_key |= (int)event.pressed() << 8; + + s_key_queue[s_key_write_index] = doom_key; + s_key_write_index = (s_key_write_index + 1) % s_key_queue_size; +} + +void DG_Init() +{ + s_input_fd = open("/dev/input0", O_RDONLY | O_NONBLOCK); + if (s_input_fd == -1) + { + perror("open"); + exit(1); + } + + int fd = open("/dev/fb0", O_RDWR); + if (fd == -1) + { + perror("open"); + exit(1); + } + + if (pread(fd, &s_fb_info, sizeof(s_fb_info), -1) == -1) + { + perror("pread"); + exit(1); + } + + size_t bytes = s_fb_info.width * s_fb_info.height * (BANAN_FB_BPP / 8); + + s_framebuffer = (uint32_t*)mmap(NULL, bytes, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); + if (s_framebuffer == NULL) + { + perror("mmap"); + exit(1); + } + + memset(s_framebuffer, 0, bytes); + msync(s_framebuffer, bytes, MS_SYNC); + + if (tty_ctrl(STDIN_FILENO, TTY_CMD_UNSET, TTY_FLAG_ENABLE_INPUT) == -1) + { + perror("tty_ctrl"); + exit(1); + } + + atexit([]() { tty_ctrl(STDIN_FILENO, TTY_CMD_SET, TTY_FLAG_ENABLE_INPUT); }); +} + +void DG_DrawFrame() +{ + if (s_framebuffer == NULL) + return; + + assert(BANAN_FB_BPP == 32); + + for (size_t y = 0; y < BAN::Math::min<uint32_t>(s_fb_info.height, DOOMGENERIC_RESY); y++) + { + memcpy( + s_framebuffer + y * s_fb_info.width, + DG_ScreenBuffer + y * DOOMGENERIC_RESX, + BAN::Math::min<uint32_t>(s_fb_info.width, DOOMGENERIC_RESX) * sizeof(uint32_t) + ); + } + + int ret = msync(s_framebuffer, s_fb_info.width * s_fb_info.height * 4, MS_SYNC); + assert(ret != -1); + + handle_key_input(); +} + +void DG_SleepMs(uint32_t ms) +{ + struct timespec ts; + ts.tv_sec = ms / 1000; + ts.tv_nsec = (ms % 1000) * 1000000; + nanosleep(&ts, NULL); +} + +uint32_t DG_GetTicksMs() +{ + struct timespec ts; + clock_gettime(CLOCK_MONOTONIC, &ts); + return (ts.tv_sec * 1000) + (ts.tv_nsec / 1000000); +} + +int DG_GetKey(int* pressed, unsigned char* doomKey) +{ + if (s_key_read_index == s_key_write_index) + return 0; + + unsigned short key_data = s_key_queue[s_key_read_index]; + s_key_read_index = (s_key_read_index + 1) % s_key_queue_size; + + *pressed = key_data >> 8; + *doomKey = key_data & 0xFF; + + return 1; +} + +void DG_SetWindowTitle(const char* title) +{ + (void)title; +} + +int main(int argc, char** argv) +{ + doomgeneric_Create(argc, argv); + + for (;;) + doomgeneric_Tick(); + + return 0; +} + +int rename(const char* oldp, const char* newp) +{ + fprintf(stderr, "rename(\"%s\", \"%s\")\n", oldp, newp); + exit(1); +} + +} -- 2.44.0