public static int Main(string[] args)
{
winx = Tools.GetArgument <int?>(args, "-screen-width") ?? 640;
winy = Tools.GetArgument <int?>(args, "-screen-height") ?? 480;
zoom = Tools.GetArgument <int?>(args, "-zoom") ?? 2;
//init SDL
SDL.SDL_Init(SDL.SDL_INIT_VIDEO);
IntPtr window = SDL.SDL_CreateWindow("AITD memory viewer", SDL.SDL_WINDOWPOS_UNDEFINED, SDL.SDL_WINDOWPOS_UNDEFINED, winx, winy, SDL.SDL_WindowFlags.SDL_WINDOW_RESIZABLE);
IntPtr renderer = SDL.SDL_CreateRenderer(window, -1, SDL.SDL_RendererFlags.SDL_RENDERER_ACCELERATED | SDL.SDL_RendererFlags.SDL_RENDERER_PRESENTVSYNC);
//IntPtr renderer = SDL.SDL_CreateRenderer(window, -1, SDL.SDL_RendererFlags.SDL_RENDERER_SOFTWARE);
//SDL.SDL_SetHint(SDL.SDL_HINT_RENDER_SCALE_QUALITY, "linear");
IntPtr texture = SDL.SDL_CreateTexture(renderer, SDL.SDL_PIXELFORMAT_ARGB8888, (int)SDL.SDL_TextureAccess.SDL_TEXTUREACCESS_STREAMING, RESX, RESY);
uint[] palette = new uint[256];
byte[] palette256 = new byte[768];
SetRefreshState(true);
bool quit = false, mcb = false, minimized = false;
uint[] pixels = new uint[RESX * RESY * SCREENS];
uint[] mcbPixels = new uint[RESX * RESY * SCREENS];
byte[] pixelData = new byte[RESX * RESY * SCREENS];
byte[] oldPixelData = new byte[RESX * RESY * SCREENS];
long paletteAddress = -1;
ProcessMemory process = null;
uint lastCheck = 0, lastCheckPalette = 0;
while (!quit)
{
SDL.SDL_Event sdlEvent;
while (SDL.SDL_PollEvent(out sdlEvent) != 0 && !quit)
{
switch (sdlEvent.type)
{
case SDL.SDL_EventType.SDL_QUIT:
quit = true;
break;
case SDL.SDL_EventType.SDL_MOUSEWHEEL:
if ((SDL.SDL_GetModState() & SDL.SDL_Keymod.KMOD_CTRL) != 0)
{
if (sdlEvent.wheel.y > 0)
{
SetZoom(zoom + 1);
}
else if (sdlEvent.wheel.y < 0)
{
SetZoom(zoom - 1);
}
}
break;
case SDL.SDL_EventType.SDL_KEYDOWN:
switch (sdlEvent.key.keysym.sym)
{
case SDL.SDL_Keycode.SDLK_SPACE:
mcb = !mcb;
SetRefreshState(true);
break;
}
if ((sdlEvent.key.keysym.mod & SDL.SDL_Keymod.KMOD_CTRL) != 0)
{
switch (sdlEvent.key.keysym.sym)
{
case SDL.SDL_Keycode.SDLK_EQUALS:
case SDL.SDL_Keycode.SDLK_KP_PLUS:
SetZoom(zoom + 1);
break;
case SDL.SDL_Keycode.SDLK_MINUS:
case SDL.SDL_Keycode.SDLK_KP_MINUS:
SetZoom(zoom - 1);
break;
case SDL.SDL_Keycode.SDLK_0:
case SDL.SDL_Keycode.SDLK_KP_0:
SetZoom(2);
break;
}
}
break;
case SDL.SDL_EventType.SDL_WINDOWEVENT:
switch (sdlEvent.window.windowEvent)
{
case SDL.SDL_WindowEventID.SDL_WINDOWEVENT_RESIZED:
winx = sdlEvent.window.data1;
winy = sdlEvent.window.data2;
SetRefreshState(true);
break;
case SDL.SDL_WindowEventID.SDL_WINDOWEVENT_MINIMIZED:
minimized = true;
break;
case SDL.SDL_WindowEventID.SDL_WINDOWEVENT_RESTORED:
minimized = false;
break;
}
break;
}
}
if (process == null)
{
uint time = SDL.SDL_GetTicks();
if ((time - lastCheck) > 1000 || lastCheck == 0)
{
lastCheck = time;
paletteAddress = -1;
int processId = DosBox.SearchProcess();
if (processId != -1)
{
process = new ProcessMemory(processId);
process.BaseAddress = process.SearchFor16MRegion();
if (process.BaseAddress == -1)
{
process.Close();
process = null;
}
}
}
}
if (process != null)
{
if (paletteAddress == -1)
{
uint time = SDL.SDL_GetTicks();
if ((time - lastCheckPalette) > 1000 || lastCheckPalette == 0)
{
lastCheckPalette = time;
//3 bytes + EGA 16 colors palette
var pattern = new byte[] { 0x01, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 };
paletteAddress = process.SearchForBytePattern(buffer => Tools.IndexOf(buffer, pattern, 1, 4));
}
}
}
if (process != null)
{
//DOS conventional memory (640KB)
//EMS memory (64000B) (skip 64KB (HMA) + 128KB (VCPI))
if (!(process.Read(pixelData, 0, 640 * 1024) > 0 &&
process.Read(pixelData, (1024 + 192) * 1024, 64000, 640 * 1024) > 0))
{
process.Close();
process = null;
}
}
if (process != null)
{
if (paletteAddress != -1)
{
if (process.Read(palette256, paletteAddress + 19 - process.BaseAddress, palette256.Length) <= 0)
{
process.Close();
process = null;
}
}
}
UpdatePalette(palette256, palette);
Update(pixelData, oldPixelData, pixels, palette);
UpdateMCB(pixelData, oldPixelData, mcbPixels);
//render
int tm = (winx + RESX * zoom - 1) / (RESX * zoom);
int tn = (winy + RESY * zoom - 1) / (RESY * zoom);
SDL.SDL_SetTextureBlendMode(texture, SDL.SDL_BlendMode.SDL_BLENDMODE_NONE);
Render(renderer, texture, tm, tn, pixels);
if (mcb)
{
SDL.SDL_SetTextureBlendMode(texture, SDL.SDL_BlendMode.SDL_BLENDMODE_BLEND);
Render(renderer, texture, tm, tn, mcbPixels);
}
SDL.SDL_RenderPresent(renderer);
SetRefreshState(false);
mustClearScreen = false;
if (minimized)
{
SDL.SDL_Delay(1);
}
//swap buffers
var tmp = pixelData;
pixelData = oldPixelData;
oldPixelData = tmp;
}
SDL.SDL_DestroyTexture(texture);
SDL.SDL_DestroyRenderer(renderer);
SDL.SDL_DestroyWindow(window);
SDL.SDL_Quit();
return(0);
}
static void CloseReader()
{
entryPoint = -1;
process.Close();
process = null;
}
