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goldberg_emulator
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This should do something like this 

(Working on portal2 ubuntu 18.04)
This commit is contained in:
Nemirtingas 2019-09-02 01:29:09 +02:00
parent 95e87eb832
commit aeeb85da55
1 changed files with 58 additions and 11 deletions
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69
ImGui/impls/linux/imgui_impl_x11.cpp
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@ -15,12 +15,16 @@
#include <X11/keysym.h>
#include <GL/glew.h>
#include <ctime>
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2019-08-31: Initial X11 implementation
// X11 Data
static Display* g_Display = nullptr;
static uint64_t g_Time = 0;
static uint64_t g_TicksPerSecond = 0;
static ImGuiMouseCursor g_LastMouseCursor = ImGuiMouseCursor_COUNT;
static bool g_HasGamepad = false;
static bool g_WantUpdateHasGamepad = true;
@ -28,6 +32,13 @@ static bool g_WantUpdateHasGamepad = true;
// Functions
bool ImGui_ImplX11_Init(void *display)
{
timespec ts, tsres;
clock_getres(CLOCK_MONOTONIC_RAW, &tsres);
clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
g_TicksPerSecond = 100000000 / (static_cast<uint64_t>(tsres.tv_nsec) + static_cast<uint64_t>(tsres.tv_sec)*1000000000);
g_Time = static_cast<uint64_t>(ts.tv_nsec) + static_cast<uint64_t>(ts.tv_sec)*1000000000;
//if (!::QueryPerformanceFrequency((LARGE_INTEGER *)&g_TicksPerSecond))
// return false;
//if (!::QueryPerformanceCounter((LARGE_INTEGER *)&g_Time))
@ -42,6 +53,28 @@ bool ImGui_ImplX11_Init(void *display)
io.ImeWindowHandle = nullptr;
// Keyboard mapping. ImGui will use those indices to peek into the io.KeysDown[] array that we will update during the application lifetime.
io.KeyMap[ImGuiKey_Tab] = XKeysymToKeycode(g_Display, XK_Tab);
io.KeyMap[ImGuiKey_LeftArrow] = XKeysymToKeycode(g_Display, XK_Left);
io.KeyMap[ImGuiKey_RightArrow] = XKeysymToKeycode(g_Display, XK_Right);
io.KeyMap[ImGuiKey_UpArrow] = XKeysymToKeycode(g_Display, XK_Up);
io.KeyMap[ImGuiKey_DownArrow] = XKeysymToKeycode(g_Display, XK_Down);
io.KeyMap[ImGuiKey_PageUp] = XKeysymToKeycode(g_Display, XK_Prior);
io.KeyMap[ImGuiKey_PageDown] = XKeysymToKeycode(g_Display, XK_Next);
io.KeyMap[ImGuiKey_Home] = XKeysymToKeycode(g_Display, XK_Home);
io.KeyMap[ImGuiKey_End] = XKeysymToKeycode(g_Display, XK_End);
io.KeyMap[ImGuiKey_Insert] = XKeysymToKeycode(g_Display, XK_Insert);
io.KeyMap[ImGuiKey_Delete] = XKeysymToKeycode(g_Display, XK_Delete);
io.KeyMap[ImGuiKey_Backspace] = XKeysymToKeycode(g_Display, XK_BackSpace);
io.KeyMap[ImGuiKey_Space] = XKeysymToKeycode(g_Display, XK_space);
io.KeyMap[ImGuiKey_Enter] = XKeysymToKeycode(g_Display, XK_Return);
io.KeyMap[ImGuiKey_Escape] = XKeysymToKeycode(g_Display, XK_Escape);
io.KeyMap[ImGuiKey_A] = XKeysymToKeycode(g_Display, XK_A);
io.KeyMap[ImGuiKey_C] = XKeysymToKeycode(g_Display, XK_C);
io.KeyMap[ImGuiKey_V] = XKeysymToKeycode(g_Display, XK_V);
io.KeyMap[ImGuiKey_X] = XKeysymToKeycode(g_Display, XK_X);
io.KeyMap[ImGuiKey_Y] = XKeysymToKeycode(g_Display, XK_Y);
io.KeyMap[ImGuiKey_Z] = XKeysymToKeycode(g_Display, XK_Z);
/*
io.KeyMap[ImGuiKey_Tab] = -1;
io.KeyMap[ImGuiKey_LeftArrow] = -1;
io.KeyMap[ImGuiKey_RightArrow] = -1;
@ -63,6 +96,8 @@ bool ImGui_ImplX11_Init(void *display)
io.KeyMap[ImGuiKey_X] = -1;
io.KeyMap[ImGuiKey_Y] = -1;
io.KeyMap[ImGuiKey_Z] = -1;
*/
return true;
}
@ -120,7 +155,15 @@ static void ImGui_ImplWin32_UpdateMousePos()
// Set mouse position
io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
Window rootWnd = DefaultRootWindow(g_Display);
Window unused_window;
int rx, ry, x, y;
unsigned int mask;
XQueryPointer(g_Display, rootWnd, &unused_window, &unused_window, &rx, &ry, &x, &y, &mask);
io.MousePos.x = rx;
io.MousePos.y = ry;
}
/* TODO: support linux gamepad ?
@ -185,31 +228,35 @@ void ImGui_ImplX11_NewFrame()
Window rootWnd = DefaultRootWindow(g_Display);
// Todo: use X11 to get this value
GLint m_viewport[4];
glGetIntegerv( GL_VIEWPORT, m_viewport );
io.DisplaySize.x = m_viewport[2];
io.DisplaySize.y = m_viewport[3];
unsigned int width, height;
Window unused_window;
int unused_int;
unsigned int unused_unsigned_int;
XGetGeometry(g_Display, rootWnd, &unused_window, &unused_int, &unused_int, &width, &height, &unused_unsigned_int, &unused_unsigned_int);
/*
io.DisplaySize = ImVec2((float)(rect.right - rect.left), (float)(rect.bottom - rect.top));
io.DisplaySize.x = width;
io.DisplaySize.y = height;
timespec ts, tsres;
clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
uint64_t current_time = static_cast<uint64_t>(ts.tv_nsec) + static_cast<uint64_t>(ts.tv_sec)*1000000000;
// Setup time step
INT64 current_time;
::QueryPerformanceCounter((LARGE_INTEGER *)&current_time);
io.DeltaTime = (float)(current_time - g_Time) / g_TicksPerSecond;
g_Time = current_time;
/*
// Read keyboard modifiers inputs
io.KeyCtrl = (::GetKeyState(VK_CONTROL) & 0x8000) != 0;
io.KeyShift = (::GetKeyState(VK_SHIFT) & 0x8000) != 0;
io.KeyAlt = (::GetKeyState(VK_MENU) & 0x8000) != 0;
io.KeySuper = false;
// io.KeysDown[], io.MousePos, io.MouseDown[], io.MouseWheel: filled by the WndProc handler below.
*/
// Update OS mouse position
ImGui_ImplWin32_UpdateMousePos();
/*
// Update OS mouse cursor with the cursor requested by imgui
ImGuiMouseCursor mouse_cursor = io.MouseDrawCursor ? ImGuiMouseCursor_None : ImGui::GetMouseCursor();
if (g_LastMouseCursor != mouse_cursor)