Start to display BIOS information

examples/PoolBox/application/src/Overlay/BIOSInfo/bios_info.cpp

@@ -1,34 +1,104 @@
 #include "../../../include/asset_mgr.hpp"
 #include "../../../include/shared.hpp"
+#include <FontWriter/fonts.hpp>
 #include <PSX/Periphery/periphery.hpp>
+#include <PSX/System/syscalls.hpp>
+#include <PSX/Timer/frame_timer.hpp>
 #include <stdio.h>
+#include <string.h>
 
 namespace BIOSInfo {
     using namespace JabyEngine;
+    static constexpr auto TextOffset = Make::PositionI16(16, 16);
+
+    struct FontSlider {
+        static constexpr auto MoveTimeout = static_cast<uint8_t>(300_ms);
+        static constexpr auto WaitTimeout = static_cast<uint8_t>(1000_ms);
+
+        int16_t                count;
+        int16_t                max;
+        int8_t                 delta;
+        IntervalTimer<uint8_t> wait_timer;
+
+        static FontSlider create_for(const FontWriter::FontInfo& font_info, const char* str) {
+            return FontSlider{
+                .count      = 0, 
+                .max        = static_cast<int16_t>((strlen(str)*font_info.get_kern_size().width) - GPU::Display::Width + (TextOffset.x << 1)), 
+                .delta      = static_cast<int8_t>(font_info.get_kern_size().width/2), 
+                .wait_timer = IntervalTimer<uint8_t>::create(FontSlider::MoveTimeout)
+            };
+        }
+
+        void advance() {
+            if(this->wait_timer.is_expired()) {
+                this->wait_timer.reset();
+                this->count += delta;
+
+                if(this->count <= 0 || this->count >= this->max) {
+                    this->delta *= -1;
+                    this->wait_timer.set_interval(FontSlider::WaitTimeout);
+                }
+
+                else {
+                    this->wait_timer.set_interval(FontSlider::MoveTimeout);
+                }
+            }
+        }
+    };
+
+    static FontSlider           font_sliders[2];
+    static GPU::TILE::Linked    border_tiles[2] = {
+        Make::TILE(Make::AreaI16(0,                                  0, TextOffset.x, GPU::Display::Height), GPU::Color24::Black()).linked(),
+        Make::TILE(Make::AreaI16(GPU::Display::Width - TextOffset.x, 0, TextOffset.x, GPU::Display::Height), GPU::Color24::Black()).linked()
+    };
+
+    static SysCall::BIOSVersion setup() {
+        const auto result = SysCall::get_bios_version();
 
-    static void setup() {
         Shared::back_menu.reset();
-        printf("Planschbecken!\n");
+        font_sliders[0] = FontSlider::create_for(FontWriter::BIOSFont::Info, result.kernel_maker);
+        font_sliders[1] = FontSlider::create_for(FontWriter::BIOSFont::Info, result.gui_version);
+        border_tiles[0].concat(border_tiles[1]);
+        return SysCall::get_bios_version();
     }
 
-    static bool update_or_exit() {
+    static bool update_or_exit(const SysCall::BIOSVersion& bios_version) {
+        static const auto move_cursor = [](JabyEngine::Cursor& cursor, int16_t dx, int16_t old_x) -> JabyEngine::Cursor& {
+            cursor.pos.x = (old_x - dx);
+            return cursor;
+        };
+
         Periphery::query_controller();
         if(Shared::back_menu.update(Make::PositionI16(0, GPU::Display::Height - 32))) {
             return true;
         }
 
+        for(auto& font_slider : font_sliders) {
+            font_slider.advance();
+        }
+
+        auto cursor = FontWriter::update(TextOffset);
+        FontWriter::bios_font_writer.write(cursor, "BIOS INFORMATION\n----------------\nDate:\n%X\nKernel-Maker:\n", bios_version.date_bcd);
+        
+        const auto old_pos_x = cursor.pos.x;
+        FontWriter::bios_font_writer.write(move_cursor(cursor, font_sliders[0].count, old_pos_x), "%s\n", bios_version.kernel_maker);
+        FontWriter::bios_font_writer.write(move_cursor(cursor, 0, old_pos_x), "GUI-Version:\n");
+        FontWriter::bios_font_writer.write(move_cursor(cursor, font_sliders[1].count, old_pos_x), "%s\n", bios_version.gui_version);
+        FontWriter::bios_font_writer.write(move_cursor(cursor, 0, old_pos_x), "----------------\n");
+
         return false;
     }
     
     static void render() {
         Shared::back_menu.render();
+        FontWriter::bios_font_writer.render();
+        GPU::render(border_tiles[0]);
     }
 
     void main() {
-        setup();
+        const auto bios_version = setup();
-
         while(true) {
-            if(update_or_exit()) {
+            if(update_or_exit(bios_version)) {
                 break;
             }
             GPU::swap_buffers_vsync(1);

include/PSX/System/syscalls.hpp

@@ -55,6 +55,14 @@ namespace JabyEngine {
         };
         #pragma pack(pop)
 
+        struct BIOSVersion {
+            uint32_t    date_bcd;
+            const char* kernel_maker;
+            const char* gui_version;
+        };
+
+        BIOSVersion get_bios_version();
+
         #define __syscall_function_cast(table, ...) reinterpret_cast<__VA_ARGS__>(table)
 
         static __always_inline void* memcpy(void *dst, const void *src, size_t len) {

include/PSX/Timer/frame_timer.hpp

@@ -27,6 +27,13 @@ namespace JabyEngine {
     public:
         constexpr SimpleTimer() = default;
 
+        static SimpleTimer create() {
+            SimpleTimer timer;
+
+            timer.reset();
+            return timer;
+        }
+
         bool is_expired_for(T time) const {
             return static_cast<T>((MasterTime::read_as<T>() - this->value)) >= time;
         }
@@ -46,6 +53,14 @@ namespace JabyEngine {
         constexpr IntervalTimer(T interval) : SimpleTimer<T>(), interval(interval) {
         }
 
+        static constexpr IntervalTimer create(T interval) {
+            IntervalTimer timer;
+
+            static_cast<SimpleTimer<T>&>(timer) = SimpleTimer<T>::create();
+            timer.interval = interval;
+            return timer;
+        }
+
         void set_interval(T interval) {
             this->interval = interval;
         }

include/string.h

@@ -0,0 +1,9 @@
+#ifndef __STRING__H
+#define __STRING__H
+#include "PSX/jabyengine_defines.h"
+
+START_C_FUNCTIONS
+    size_t strlen(const char* str);
+END_C_FUNCTIONS
+
+#endif // !__STRING__H

src/Library/src/System/string.cpp

@@ -0,0 +1,10 @@
+#include <string.h>
+
+START_C_FUNCTIONS
+    size_t strlen(const char *str) {
+        const char* end = str;
+        
+        for(; *end; ++end);
+        return(end - str);
+    }
+END_C_FUNCTIONS

src/Library/src/System/syscall.cpp

@@ -0,0 +1,14 @@
+#include <PSX/System/syscalls.hpp>
+
+namespace JabyEngine {
+    namespace SysCall {
+        BIOSVersion get_bios_version() {
+            BIOSVersion version;
+
+            version.date_bcd     = *reinterpret_cast<uint32_t*>(0xBFC00100);
+            version.kernel_maker = reinterpret_cast<const char*>(0xBFC00108);
+            version.gui_version  = reinterpret_cast<const char*>(0xBFC7FF32);
+            return version;
+        }
+    }
+}