Worked on graphics mode selection, in prevision for having VESA grpahics

6 files changed, 121 insertions, 70 deletions

diff --git a/Source/Kernel/Core/kmain.wtf.cpp b/Source/Kernel/Core/kmain.wtf.cpp
index afb22aa..9ecc9d7 100644
--- a/Source/Kernel/Core/kmain.wtf.cpp
+++ b/Source/Kernel/Core/kmain.wtf.cpp
@@ -35,11 +35,6 @@ extern u32int end;	//Placement address
 
 extern "C" void kmain(multiboot_info_t* mbd, u32int magic);
 
-#define INFO(vt) vt->setColor(KVT_FGCOLOR); *vt << " - "; vt->setColor(KVT_LIGHTCOLOR);
-#define PROCESSING(vt, m) vt->setColor(KVT_BLECOLOR); *vt << " > "; vt->setColor(KVT_FGCOLOR); *vt << m; \
-	vt->setCursorCol(60); vt->setColor(KVT_LIGHTCOLOR); *vt << ": ";
-#define OK(vt) vt->setColor(KVT_FGCOLOR); *vt << "[ "; vt->setColor(KVT_OKCOLOR); *vt << "OK"; vt->setColor(KVT_FGCOLOR); *vt << " ]\n";
-
 u32int logoAnimation(void* p) {
 	SimpleVT& vt = *((SimpleVT*)p);
 	vt.setColor(8);
@@ -84,13 +79,41 @@ u32int logoAnimation(void* p) {
 	return 0;
 }
 
+void selectVideoMode(SimpleVT& v) {
+	Disp::getModes();
+	v << "\n\nPlease select a graphic mode in the list below:\n";
+
+	for (u32int i = 0; i < Disp::modes.size(); i++) {
+		Disp::mode_t& m = Disp::modes[i];
+		v << (s32int)i << ":\t" << "Text " << m.textRows << "x" << m.textCols << "\t";
+		if (m.graphWidth != 0 and m.graphHeight != 0) {
+			v << "Graphics " << m.graphWidth << "x" << m.graphHeight << "x" << m.graphDepth << "\t";
+		} else {
+			v << "No graphics";
+		}
+		v.setCursorCol(40);
+		v << m.device->getName() << "\n";
+	}
+
+	while (1) {
+		v << "\nYour selection: ";
+		String answer = v.readLine();
+		u32int n = answer.toInt();
+		if (n >= 0 and n < Disp::modes.size() and Disp::setMode(Disp::modes[n])) {
+			return;
+		} else {
+			v << "Error while switching video mode, please select another one.\n";
+		}
+	}
+}
+
 void kmain(multiboot_info_t* mbd, u32int magic) {
 	DEBUG("Entering kmain.");
 
 	if (magic != MULTIBOOT_BOOTLOADER_MAGIC) {
 		Mem::placementAddress = (u32int)&end;	//Setup basic stuff so that PANIC will work
 		VGATextOutput *vgaout = new VGATextOutput();
-		Disp::setDisplay(vgaout);
+		Disp::setText(vgaout);
 		PANIC("Error with multiboot header.");
 	}
 	
@@ -107,52 +130,34 @@ void kmain(multiboot_info_t* mbd, u32int magic) {
 
 	//Create text output
 	VGATextOutput *vgaout = new VGATextOutput();
-	Disp::setDisplay(vgaout);
-
-	//Create a VT for handling the Melon bootup logo
-	SimpleVT *melonLogoVT = new SimpleVT(melonLogoLines, melonLogoCols, TXTLOGO_FGCOLOR, TXTLOGO_BGCOLOR);
-	melonLogoVT->map(1);
+	Disp::setText(vgaout);
 
 	//Create a VT for logging what kernel does
-	SimpleVT *kvt = new ScrollableVT(3, 69, 10, KVT_FGCOLOR, KVT_BGCOLOR);
-	kvt->map(15);
-
-	INFO(kvt); *kvt << "Lower ram : " << (s32int)mbd->mem_lower << "k, upper : " << (s32int)mbd->mem_upper << "k.\n";
-	INFO(kvt); *kvt << "Placement address : " << (u32int)Mem::placementAddress << "\n";
+	SimpleVT *kvt = new ScrollableVT(25, 80, 10, KVT_FGCOLOR, KVT_BGCOLOR);
+	kvt->map(0, 0);
+	*kvt << "Melon is loading...";
 
-	PROCESSING(kvt, "Loading IDT...");
-	IDT::init(); OK(kvt);
+	IDT::init();		//Setup interrupts 
 
-	PROCESSING(kvt, "Initializing paging...");
 	u32int totalRam = ((mbd->mem_upper + mbd->mem_lower) * 1024);
-	PhysMem::initPaging(totalRam); OK(kvt);
-
-	INFO(kvt); *kvt << "Total ram : " << (s32int)(totalRam / 1024) << "k (" << (s32int)(totalRam / (1024 * 1024)) << "M).\n";
-	PROCESSING(kvt, "Initializing real GDT and cleaning page directory...");
-	GDT::init();
-	PhysMem::removeTemporaryPages(); OK(kvt);
+	PhysMem::initPaging(totalRam);		//Setup paging 
 
-	PROCESSING(kvt, "Creating kernel heap...");
-	Mem::createHeap(); OK(kvt);
-	INFO(kvt); *kvt << "Free frames : " << (s32int)PhysMem::free() << "/" << (s32int)PhysMem::total() << "\n";
+	GDT::init();		//Initialize real GDT, not fake one from loader.wtf.asm
+	PhysMem::removeTemporaryPages(); 	//Remove useless page mapping
 
-	PROCESSING(kvt,"Initializing PIT...");
-	Dev::registerDevice(new Timer()); OK(kvt);
+	Mem::createHeap();		//Create kernel heap 
 
-	PROCESSING(kvt, "Initializing multitasking...");
-	Task::initialize(String((char*)mbd->cmdline), kvt); 
-	new Thread(logoAnimation, (void*)melonLogoVT, true); OK(kvt);
+	Dev::registerDevice(new Timer()); 	//Initialize timer
+	Task::initialize(String((char*)mbd->cmdline), kvt);	//Initialize multitasking 
 
-	PROCESSING(kvt, "Mounting first module as ramfs on root directory...");
 	FileSystem* fs = RamFS::mount((u8int*)mods[0].mod_start, 1024 * 1024, NULL);
 	DirectoryNode* cwd;
 	cwd = fs->getRootNode();
 	Task::currProcess()->setCwd(cwd);
-	VFS::setRootNode(cwd); OK(kvt);
+	VFS::setRootNode(cwd);
 
-	PROCESSING(kvt, "Setting up logs...");
-	Log::init(KL_STATUS); OK(kvt);
-	INFO(kvt); *kvt << "Logs are now going to files in /System/Logs/\n";
+	Log::init(KL_STATUS);	//Setup logging
+	Log::log(KL_STATUS, "kmail : Melon booting.");
 
 	Dev::registerDevice(vgaout);
 	Log::log(KL_STATUS, "kmain : Registered textual VGA output");
@@ -162,34 +167,29 @@ void kmain(multiboot_info_t* mbd, u32int magic) {
 	Kbd::setFocus(kvt);	//Set focus to virtual terminal
 	Log::log(KL_STATUS, "kmain : Keyboard set up");
 
+	asm volatile("sti");
+
+	selectVideoMode(*kvt);
+	kvt->unmap();
+
+	//Create a VT for handling the Melon bootup logo
+	SimpleVT *melonLogoVT = new SimpleVT(melonLogoLines, melonLogoCols, TXTLOGO_FGCOLOR, TXTLOGO_BGCOLOR);
+	melonLogoVT->map(1);
+	new Thread(logoAnimation, (void*)melonLogoVT, true);
+
 	FloppyController::detect();
 	Log::log(KL_STATUS, "kmain : Floppy drives detected");
 
 	Usr::load();
 	Log::log(KL_STATUS, "kmain : User list loaded");
 
-	asm volatile("sti");
-	Log::log(KL_STATUS, "kmain : Interrupts enabled.");
-
-	/*
-	new KernelShell(cwd);	//No need to save that in a var, it is automatically destroyed anyways
-	Log::log(KL_STATUS, "kmain : Kernel shell launched");
-	//kvt->unmap();
-
-	while (KernelShell::getInstances() > 0) {
-		Task::currThread()->sleep(100);
-	}
-
-	Log::log(KL_STATUS, "kmain : All kernel shells finished. Halting.");
-	Sys::halt();
-	*/
-
 	Process* p = Process::run("/System/Applications/PaperWork.app", 0);
 	if (p == 0) {
 		PANIC("Could not launch PaperWork !");
 	} else {
 		Log::log(KL_STATUS, "kmain : Starting PaperWork (init)");
-		VirtualTerminal* vt = new ScrollableVT(15, 76, 200, SHELL_FGCOLOR, SHELL_BGCOLOR);
+		VirtualTerminal* vt = new ScrollableVT(Disp::textRows() - 10, Disp::textCols() - 4,
+			   	200, SHELL_FGCOLOR, SHELL_BGCOLOR);
 		Kbd::setFocus(vt);
 		((ScrollableVT*)vt)->map(9);
 		p->setInVT(vt);
diff --git a/Source/Kernel/DeviceManager/Disp.ns.cpp b/Source/Kernel/DeviceManager/Disp.ns.cpp
index 4be8d03..246e959 100644
--- a/Source/Kernel/DeviceManager/Disp.ns.cpp
+++ b/Source/Kernel/DeviceManager/Disp.ns.cpp
@@ -1,8 +1,10 @@
 #include "Disp.ns.h"
+#include <DeviceManager/Dev.ns.h>
 
 namespace Disp {
 
 mode_t mode;
+Vector<mode_t> modes;
 
 u16int textCols() {
 	return mode.textCols;
@@ -26,11 +28,27 @@ void clear() {
 	mode.device->clear();
 }
 
-void setDisplay(Display* disp) {
-	mode.device = disp;
-	disp->clear();
-	mode.textCols = disp->textCols();
-	mode.textRows = disp->textRows();
+void getModes() {
+	modes.clear();
+	Vector<Device*> disps = Dev::findDevices("display");
+	for (u32int i = 0; i < disps.size(); i++) {
+		((Display*)(disps[i]))->getModes(modes);
+	}
+}
+
+bool setMode(mode_t& newmode) {
+	if (newmode.device->setMode(newmode)) {
+		mode = newmode;
+		return true;
+	}
+	return false;
+}
+
+void setText(VGATextOutput* o) {
+	mode.device = o;
+	o->clear();
+	mode.textCols = 80;
+	mode.textRows = 25;
 }
 
 }
diff --git a/Source/Kernel/DeviceManager/Disp.ns.h b/Source/Kernel/DeviceManager/Disp.ns.h
index 0eea51d..0d56cf0 100644
--- a/Source/Kernel/DeviceManager/Disp.ns.h
+++ b/Source/Kernel/DeviceManager/Disp.ns.h
@@ -1,22 +1,31 @@
 #ifndef DEF_DISP_NS_H
 #define DEF_DISP_NS_H
 
-#include <Devices/Display/Display.proto.h>
+#include <Devices/Display/VGATextOutput.class.h>
 #include <WChar.class.h>
+#include <Vector.class.h>
 
 namespace Disp {
 	struct mode_t {
 		int textCols, textRows;
+		int graphWidth, graphHeight, graphDepth;
+		int identifier;	//Used by video devices
 		Display *device;
 	};
 
+	extern Vector<mode_t> modes;
+	extern mode_t mode;
+
 	u16int textCols();
 	u16int textRows();
 	void putChar(u16int line, u16int col, WChar c, u8int color);
 	void moveCursor(u16int line, u16int col);
 	void clear();
 
-	void setDisplay(Display* disp);
+	void getModes();
+	bool setMode(mode_t& mode);
+
+	void setText(VGATextOutput* o);	//To use only once : when display is initializing
 }
 
 #endif
diff --git a/Source/Kernel/Devices/Display/Display.proto.h b/Source/Kernel/Devices/Display/Display.proto.h
index 2cec616..e1775bd 100644
--- a/Source/Kernel/Devices/Display/Display.proto.h
+++ b/Source/Kernel/Devices/Display/Display.proto.h
@@ -5,14 +5,21 @@
 #include <Devices/Device.proto.h>
 #include <WChar.class.h>
 
+namespace Disp { struct mode_t; }
+
 class Display : public Device {
 	public:
 	virtual ~Display() {}
-	virtual u16int textCols() = 0;
-	virtual u16int textRows() = 0;
-	virtual void putChar(u16int line, u16int col, WChar c, u8int color) = 0;	//Color : <bg 4byte><fg 4byte>
-	virtual void moveCursor(u16int line, u16int col) = 0;
+
+	virtual void getModes(Vector<Disp::mode_t> &to) = 0;
+	virtual bool setMode(Disp::mode_t& mode) = 0;
 	virtual void clear() = 0;
+
+	//Text functions
+	virtual void putChar(u16int line, u16int col, WChar c, u8int color) = 0;	//Color : <bg 4bits><fg 4bits>
+	virtual void moveCursor(u16int line, u16int col) = 0;
+
+	//Graphic functions
 };
 
 #endif
diff --git a/Source/Kernel/Devices/Display/VGATextOutput.class.cpp b/Source/Kernel/Devices/Display/VGATextOutput.class.cpp
index aca5ce6..8840080 100644
--- a/Source/Kernel/Devices/Display/VGATextOutput.class.cpp
+++ b/Source/Kernel/Devices/Display/VGATextOutput.class.cpp
@@ -1,9 +1,11 @@
 #include "VGATextOutput.class.h"
+#include <DeviceManager/Disp.ns.h>
 
 //Virtual address in higher half
 #define RAM_ADDR 0xC00B8000
 
 using namespace Sys;	//For outb
+using namespace Disp;
 
 String VGATextOutput::getClass() {
 	return "display.text";
@@ -13,12 +15,24 @@ String VGATextOutput::getName() {
 	return "Standard mode0 VGA text display";
 }
 
-u16int VGATextOutput::textCols() {
-	return 80;
+void VGATextOutput::getModes(Vector<mode_t> &to) {
+	mode_t m;
+	m.textCols = 80;
+	m.textRows = 25;
+	m.identifier = 0;
+	m.graphWidth = 0;
+	m.graphHeight = 0;
+	m.device = this;
+	to.push(m);
 }
 
-u16int VGATextOutput::textRows() {
-	return 25;
+bool VGATextOutput::setMode(mode_t& mode) {
+	if (mode.device == this && mode.identifier == 0) {
+		//TODO : switch for real to mode 0.
+		clear();
+		return true;
+	}
+	return false;
 }
 
 void VGATextOutput::putChar(u16int line, u16int col, WChar c, u8int color) {
diff --git a/Source/Kernel/Devices/Display/VGATextOutput.class.h b/Source/Kernel/Devices/Display/VGATextOutput.class.h
index 864ae35..1ced227 100644
--- a/Source/Kernel/Devices/Display/VGATextOutput.class.h
+++ b/Source/Kernel/Devices/Display/VGATextOutput.class.h
@@ -8,6 +8,9 @@ class VGATextOutput : public Display {
 	String getClass();
 	String getName();
 
+	void getModes(Vector<Disp::mode_t> &to);
+	bool setMode(Disp::mode_t& mode);
+
 	u16int textCols();
 	u16int textRows();
 	void putChar(u16int line, u16int col, WChar c, u8int color);