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Ports/doom: Doom now runs inside a window

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Bananymous 2024-06-03 20:13:09 +03:00
parent 7bb1a3906d
commit f43a7fdfb4
1 changed files with 70 additions and 151 deletions
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221
ports/doom/patches/0001-Add-support-for-banan-os.patch
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@ -1,22 +1,21 @@
From 70cb1210ba2f6e1d922922f66f32efcf7bec51e1 Mon Sep 17 00:00:00 2001
From 0f37d9f2df042eb8ba021dd91b898c1f07d86b58 Mon Sep 17 00:00:00 2001
From: Bananymous <bananymousosq@gmail.com>
Date: Wed, 3 Apr 2024 17:57:11 +0300
Date: Mon, 3 Jun 2024 20:01:40 +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(+)
doomgeneric/Makefile.banan_os | 57 +++++++++++
doomgeneric/doomgeneric_banan_os.cpp | 144 +++++++++++++++++++++++++++
2 files changed, 200 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
index 0000000..0878148
--- /dev/null
+++ b/doomgeneric/Makefile.banan_os
@@ -0,0 +1,58 @@
@@ -0,0 +1,57 @@
+################################################################
+#
+# $Id:$
@ -32,11 +31,10 @@ index 0000000..453bed7
+
+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
+CFLAGS+=-O3 -Wall -DNORMALUNIX -DLINUX -DSNDSERV -D_DEFAULT_SOURCE
+CXXFLAGS+=$(CFLAGS) --std=c++20
+LDFLAGS+=
+LIBS+=
+LIBS+=-lgui -linput -lstdc++
+
+# subdirectory for objects
+OBJDIR=build-$(BANAN_ARCH)
@ -75,12 +73,13 @@ index 0000000..453bed7
+
+print:
+ @echo OBJS: $(OBJS)
\ No newline at end of file
diff --git a/doomgeneric/doomgeneric_banan_os.cpp b/doomgeneric/doomgeneric_banan_os.cpp
new file mode 100644
index 0000000..e32c861
index 0000000..9161771
--- /dev/null
+++ b/doomgeneric/doomgeneric_banan_os.cpp
@@ -0,0 +1,224 @@
@@ -0,0 +1,144 @@
+extern "C"
+{
+#include "doomgeneric.h"
@ -97,161 +96,81 @@ index 0000000..e32c861
+#include <sys/mman.h>
+#include <time.h>
+
+#include <BAN/Math.h>
+#include <kernel/Input/KeyEvent.h>
+#include <LibGUI/Window.h>
+
+extern "C"
+{
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+
+static struct framebuffer_info_t s_fb_info;
+static uint32_t* s_framebuffer = NULL;
+
+static int s_input_fd;
+static BAN::UniqPtr<LibGUI::Window> s_window;
+
+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()
+extern "C"
+{
+ 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);
+ }
+ s_window = MUST(LibGUI::Window::create(DOOMGENERIC_RESX, DOOMGENERIC_RESY, "DOOM"sv));
+ s_window->set_key_event_callback(
+ [](LibGUI::EventPacket::KeyEvent event)
+ {
+ unsigned short doom_key = 0;
+ switch (event.key)
+ {
+ case LibInput::Key::Enter:
+ doom_key = KEY_ENTER;
+ break;
+ case LibInput::Key::Escape:
+ doom_key = KEY_ESCAPE;
+ break;
+ case LibInput::Key::ArrowLeft:
+ doom_key = KEY_LEFTARROW;
+ break;
+ case LibInput::Key::ArrowUp:
+ doom_key = KEY_UPARROW;
+ break;
+ case LibInput::Key::ArrowRight:
+ doom_key = KEY_RIGHTARROW;
+ break;
+ case LibInput::Key::ArrowDown:
+ doom_key = KEY_DOWNARROW;
+ break;
+ case LibInput::Key::LeftCtrl:
+ case LibInput::Key::RightCtrl:
+ doom_key = KEY_FIRE;
+ break;
+ case LibInput::Key::Space:
+ doom_key = KEY_USE;
+ break;
+ case LibInput::Key::RightShift:
+ doom_key = KEY_RSHIFT;
+ break;
+ default:
+ {
+ const char* utf8 = LibInput::key_to_utf8(event.key, event.modifier);
+ if (utf8 && strlen(utf8) == 1 && isalpha(*utf8))
+ doom_key = tolower(*utf8);
+ }
+ }
+
+ int fd = open("/dev/fb0", O_RDWR);
+ if (fd == -1)
+ {
+ perror("open");
+ exit(1);
+ }
+ if (doom_key == 0)
+ return;
+
+ 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); });
+ s_key_queue[s_key_write_index] = doom_key | (int)event.pressed() << 8;
+ s_key_write_index = (s_key_write_index + 1) % s_key_queue_size;
+ }
+ );
+}
+
+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();
+ for (size_t y = 0; y < DOOMGENERIC_RESY; y++)
+ for (size_t x = 0; x < DOOMGENERIC_RESX; x++)
+ s_window->set_pixel(x, y, DG_ScreenBuffer[y * DOOMGENERIC_RESX + x]);
+ s_window->invalidate();
+ s_window->poll_events();
+}
+
+void DG_SleepMs(uint32_t ms)
@ -306,5 +225,5 @@ index 0000000..e32c861
+
+}
--
2.44.0
2.45.2