Displays: on-screen cockpit buttons + desktop plasma + the glass preset (steps 2d/2e)

NEW gated TUs: L4PADPANEL (GDI top-level window, all-W APIs: the pod button banks -- upper/lower aux, 12 secondary, specials/hat/handle, 63 buttons -- clickable via PadRIO::SetScreenButton with lamp-lit faces from GetLampState, 10 Hz repaint; created by the PadRIO ctor on BT_PAD_PANEL=1) and L4PLASMAWIN (PlasmaWindow : Video8BitBuffered -- the gauge renderer draws the 128x32 plasma into its pixelBuffer through the SAME code path as the serial device; Update() blits orange-on-black at L4PLASMASCALE, default x4). Gated seams: L4GREND.cpp L4PLASMA=SCREEN branch; btl4main.cpp -platform glass preset (PAD,KEYBOARD + BT_DEV_GAUGES + SCREEN plasma + panel; env always overrides; non-glass builds log+fall back to DEV); run.cmd glass token. MFD surfaces need NO new code: the existing dock-bottom / BT_DEV_GAUGES_WINDOW=1 / BT_DEV_GAUGES_DOCK=1 modes are the display story. Verified live: -platform glass boots GLASS profile, panel + plasma windows up, pad detected, dev gauges awake, mission loop clean. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-17 22:21:22 -05:00
parent 9f35a8034a
commit db9ac947f7
9 changed files with 629 additions and 8 deletions
@@ -0,0 +1,167 @@
+#include "mungal4.h"
+#pragma hdrstop
+
+//###########################################################################
+// L4PLASMAWIN -- the desktop plasma display (BT_GLASS only; this TU is only
+// in the build when the gate is on -- see CMakeLists.txt).
+// Design: L4PLASMAWIN.h.
+//###########################################################################
+
+#include "l4plasmawin.h"
+
+#include <windows.h>
+#include <stdlib.h>
+#include <string.h>
+
+static LRESULT CALLBACK
+	PlasmaWndProc(HWND window, UINT message, WPARAM wparam, LPARAM lparam)
+{
+	switch (message)
+	{
+	case WM_CLOSE:
+		ShowWindow(window, SW_HIDE);	// hide only; the renderer owns it
+		return 0;
+	}
+	return DefWindowProcW(window, message, wparam, lparam);
+}
+
+//###########################################################################
+
+PlasmaWindow::PlasmaWindow():
+	Video8BitBuffered(plasmaWidth, plasmaHeight),
+	window(NULL),
+	blitBuffer(NULL)
+{
+	scale = 4;
+	const char *scale_string = getenv("L4PLASMASCALE");
+	if (scale_string != NULL)
+	{
+		int v = atoi(scale_string);
+		if (v >= 1 && v <= 16)
+		{
+			scale = v;
+		}
+	}
+	blitBuffer = new unsigned long[plasmaWidth * plasmaHeight];
+	memset(blitBuffer, 0, plasmaWidth * plasmaHeight * sizeof(unsigned long));
+	DEBUG_STREAM << "[plasmawin] desktop plasma display up (scale x"
+		<< scale << ")\n" << std::flush;
+}
+
+PlasmaWindow::~PlasmaWindow()
+{
+	if (window != NULL)
+	{
+		DestroyWindow((HWND)window);
+		window = NULL;
+	}
+	delete[] blitBuffer;
+	blitBuffer = NULL;
+}
+
+void
+	PlasmaWindow::EnsureWindow()
+{
+	if (window != NULL)
+	{
+		return;
+	}
+
+	WNDCLASSW window_class;
+	memset(&window_class, 0, sizeof(window_class));
+	window_class.lpfnWndProc   = PlasmaWndProc;
+	window_class.hInstance     = GetModuleHandleW(NULL);
+	window_class.hCursor       = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
+	window_class.lpszClassName = L"BTPlasmaWnd";
+	RegisterClassW(&window_class);
+
+	RECT frame = { 0, 0, plasmaWidth * scale, plasmaHeight * scale };
+	DWORD style = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX;
+	AdjustWindowRect(&frame, style, FALSE);
+
+	window = CreateWindowW(
+		L"BTPlasmaWnd", L"BattleTech - Plasma",
+		style,
+		40, 480,
+		frame.right - frame.left, frame.bottom - frame.top,
+		NULL, NULL, GetModuleHandleW(NULL), NULL);
+	if (window == NULL)
+	{
+		DEBUG_STREAM << "[plasmawin] CreateWindow failed\n" << std::flush;
+		return;
+	}
+	ShowWindow((HWND)window, SW_SHOWNOACTIVATE);
+}
+
+//
+// The per-frame external-display flush (the gauge renderer calls this
+// where the serial path streams changed lines out the COM port).  Blits
+// the whole 8-bit buffer as orange-on-black.  Returns False = done (no
+// multi-call transfer in progress, unlike the serial path).
+//
+Logical
+	PlasmaWindow::Update(Logical force_all)
+{
+	(void)force_all;
+	EnsureWindow();
+	if (window == NULL || pixelBuffer == NULL ||
+		pixelBuffer->Data.MapPointer == NULL)
+	{
+		return False;
+	}
+
+	//
+	// 8-bit index -> BGRA: any lit index renders plasma orange, intensity
+	// stepped a little by index so shaded glyphs keep their shape.  The
+	// engine's graphics coordinate system puts (0,0) bottom-left; the
+	// window is top-down, so flip Y in the copy.
+	//
+	const Byte *source = pixelBuffer->Data.MapPointer;
+	for (int y = 0; y < plasmaHeight; ++y)
+	{
+		const Byte *line = source + (plasmaHeight - 1 - y) * plasmaWidth;
+		unsigned long *destination = blitBuffer + y * plasmaWidth;
+		for (int x = 0; x < plasmaWidth; ++x)
+		{
+			Byte index = line[x];
+			if (index == 0)
+			{
+				destination[x] = 0x00180800;			// near-black
+			}
+			else
+			{
+				unsigned long intensity = 160 + (index % 6) * 19;	// 160..255
+				destination[x] =
+					(intensity << 16) |					// R
+					((intensity * 140 / 255) << 8);		// G (amber)
+			}
+		}
+	}
+
+	BITMAPINFO info;
+	memset(&info, 0, sizeof(info));
+	info.bmiHeader.biSize        = sizeof(BITMAPINFOHEADER);
+	info.bmiHeader.biWidth       = plasmaWidth;
+	info.bmiHeader.biHeight      = -plasmaHeight;		// top-down
+	info.bmiHeader.biPlanes      = 1;
+	info.bmiHeader.biBitCount    = 32;
+	info.bmiHeader.biCompression = BI_RGB;
+
+	HDC dc = GetDC((HWND)window);
+	if (dc != NULL)
+	{
+		RECT client;
+		GetClientRect((HWND)window, &client);
+		StretchDIBits(dc,
+			0, 0, client.right, client.bottom,
+			0, 0, plasmaWidth, plasmaHeight,
+			blitBuffer, &info, DIB_RGB_COLORS, SRCCOPY);
+		ReleaseDC((HWND)window, dc);
+	}
+	return False;
+}
+
+void
+	PlasmaWindow::WaitForUpdate()
+{
+}