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flycast/core/linux-dist/x11.cpp

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#if defined(SUPPORT_X11)
#include <map>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
#if !defined(GLES)
#include <GL/gl.h>
#include <GL/glx.h>
#endif
#include "types.h"
#include "cfg/cfg.h"
#include "linux-dist/x11.h"
#include "linux-dist/main.h"
#if FEAT_HAS_NIXPROF
#include "profiler/profiler.h"
#endif
#if defined(TARGET_PANDORA)
#define DEFAULT_FULLSCREEN 1
#define DEFAULT_WINDOW_WIDTH 800
#else
#define DEFAULT_FULLSCREEN 0
#define DEFAULT_WINDOW_WIDTH 640
#endif
#define DEFAULT_WINDOW_HEIGHT 480
map<int, int> x11_keymap;
int x11_dc_buttons = 0xFFFF;
int x11_keyboard_input = 0;
int x11_width;
int x11_height;
int ndcid = 0;
void* x11_glc = NULL;
bool x11_fullscreen = false;
Atom wmDeleteMessage;
void* x11_vis;
extern bool dump_frame_switch;
void dc_stop(void);
bool dc_loadstate(void);
bool dc_savestate(void);
enum
{
_NET_WM_STATE_REMOVE =0,
_NET_WM_STATE_ADD = 1,
_NET_WM_STATE_TOGGLE =2
};
void x11_window_set_fullscreen(bool fullscreen)
{
XEvent xev;
xev.xclient.type = ClientMessage;
xev.xclient.window = (Window)x11_win;
xev.xclient.message_type = XInternAtom((Display*)x11_disp, "_NET_WM_STATE", False);
xev.xclient.format = 32;
xev.xclient.data.l[0] = 2; // _NET_WM_STATE_TOGGLE
xev.xclient.data.l[1] = XInternAtom((Display*)x11_disp, "_NET_WM_STATE_FULLSCREEN", True);
xev.xclient.data.l[2] = 0; // no second property to toggle
xev.xclient.data.l[3] = 1;
xev.xclient.data.l[4] = 0;
printf("x11: setting fullscreen to %d\n", fullscreen);
XSendEvent((Display*)x11_disp, DefaultRootWindow((Display*)x11_disp), False, SubstructureNotifyMask, &xev);
}
void event_x11_handle()
{
XEvent event;
while(XPending((Display *)x11_disp))
{
XNextEvent((Display *)x11_disp, &event);
if (event.type == ClientMessage &&
event.xclient.data.l[0] == wmDeleteMessage)
dc_stop();
}
}
u8 kb_map[256];
static void init_kb_map()
{
//04-1D Letter keys A-Z (in alphabetic order)
kb_map[KEY_A] = 0x04;
kb_map[KEY_B] = 0x05;
kb_map[KEY_C] = 0x06;
kb_map[KEY_D] = 0x07;
kb_map[KEY_E] = 0x08;
kb_map[KEY_F] = 0x09;
kb_map[KEY_G] = 0x0A;
kb_map[KEY_H] = 0x0B;
kb_map[KEY_I] = 0x0C;
kb_map[KEY_J] = 0x0D;
kb_map[KEY_K] = 0x0E;
kb_map[KEY_L] = 0x0F;
kb_map[KEY_M] = 0x10;
kb_map[KEY_N] = 0x11;
kb_map[KEY_O] = 0x12;
kb_map[KEY_P] = 0x13;
kb_map[KEY_Q] = 0x14;
kb_map[KEY_R] = 0x15;
kb_map[KEY_S] = 0x16;
kb_map[KEY_T] = 0x17;
kb_map[KEY_U] = 0x18;
kb_map[KEY_V] = 0x19;
kb_map[KEY_W] = 0x1A;
kb_map[KEY_X] = 0x1B;
kb_map[KEY_Y] = 0x1C;
kb_map[KEY_Z] = 0x1D;
//1E-27 Number keys 1-0
kb_map[KEY_1] = 0x1E;
kb_map[KEY_2] = 0x1F;
kb_map[KEY_3] = 0x20;
kb_map[KEY_4] = 0x21;
kb_map[KEY_5] = 0x22;
kb_map[KEY_6] = 0x23;
kb_map[KEY_7] = 0x24;
kb_map[KEY_8] = 0x25;
kb_map[KEY_9] = 0x26;
kb_map[KEY_0] = 0x27;
kb_map[KEY_RETURN] = 0x28;
kb_map[KEY_ESC] = 0x29;
kb_map[KEY_BACKSPACE] = 0x2A;
kb_map[KEY_TAB] = 0x2B;
kb_map[KEY_SPACE] = 0x2C;
kb_map[20] = 0x2D; // -
kb_map[21] = 0x2E; // =
kb_map[34] = 0x2F; // [
kb_map[35] = 0x30; // ]
kb_map[94] = 0x31; // \ (US) unsure of keycode
//32-34 "]", ";" and ":" (the 3 keys right of L)
kb_map[51] = 0x32; // ~ (non-US) *,µ in FR layout
kb_map[47] = 0x33; // ;
kb_map[48] = 0x34; // '
//35 hankaku/zenkaku / kanji (top left)
kb_map[49] = 0x35; // `~ (US)
//36-38 ",", "." and "/" (the 3 keys right of M)
kb_map[59] = 0x36;
kb_map[60] = 0x37;
kb_map[61] = 0x38;
// CAPSLOCK
kb_map[66] = 0x39;
//3A-45 Function keys F1-F12
for (int i = 0;i < 10; i++)
kb_map[KEY_F1 + i] = 0x3A + i;
kb_map[KEY_F11] = 0x44;
kb_map[KEY_F12] = 0x45;
//46-4E Control keys above cursor keys
kb_map[107] = 0x46; // Print Screen
kb_map[78] = 0x47; // Scroll Lock
kb_map[127] = 0x48; // Pause
kb_map[KEY_INS] = 0x49;
kb_map[KEY_HOME] = 0x4A;
kb_map[KEY_PGUP] = 0x4B;
kb_map[KEY_DEL] = 0x4C;
kb_map[KEY_END] = 0x4D;
kb_map[KEY_PGDOWN] = 0x4E;
//4F-52 Cursor keys
kb_map[KEY_RIGHT] = 0x4F;
kb_map[KEY_LEFT] = 0x50;
kb_map[KEY_DOWN] = 0x51;
kb_map[KEY_UP] = 0x52;
//53 Num Lock (Numeric keypad)
kb_map[77] = 0x53;
//54 "/" (Numeric keypad)
kb_map[106] = 0x54;
//55 "*" (Numeric keypad)
kb_map[63] = 0x55;
//56 "-" (Numeric keypad)
kb_map[82] = 0x56;
//57 "+" (Numeric keypad)
kb_map[86] = 0x57;
//58 Enter (Numeric keypad)
kb_map[104] = 0x58;
//59-62 Number keys 1-0 (Numeric keypad)
kb_map[87] = 0x59;
kb_map[88] = 0x5A;
kb_map[89] = 0x5B;
kb_map[83] = 0x5C;
kb_map[84] = 0x5D;
kb_map[85] = 0x5E;
kb_map[79] = 0x5F;
kb_map[80] = 0x60;
kb_map[81] = 0x61;
kb_map[90] = 0x62;
//63 "." (Numeric keypad)
kb_map[91] = 0x63;
//64 #| (non-US)
//kb_map[94] = 0x64;
//65 S3 key
//66-A4 Not used
//A5-DF Reserved
//E0 Left Control
//E1 Left Shift
//E2 Left Alt
//E3 Left S1
//E4 Right Control
//E5 Right Shift
//E6 Right Alt
//E7 Right S3
//E8-FF Reserved
}
static u32 kb_used = 0;
extern u8 kb_shift; // shift keys pressed (bitmask)
extern u8 kb_led; // leds currently lit
extern u8 kb_key[6]; // normal keys pressed
extern u32 mo_buttons;
extern f32 mo_x_delta;
extern f32 mo_y_delta;
extern f32 mo_wheel_delta;
static bool capturing_mouse;
static Cursor empty_cursor = None;
static Cursor create_empty_cursor()
{
if (empty_cursor == None)
{
Display *display = (Display*)x11_disp;
char data[] = { 0 };
XColor color;
color.red = color.green = color.blue = 0;
Pixmap pixmap = XCreateBitmapFromData(display, DefaultRootWindow(display),
data, 1, 1);
if (pixmap)
{
empty_cursor = XCreatePixmapCursor(display, pixmap, pixmap, &color, &color, 0, 0);
XFreePixmap(display, pixmap);
}
}
return empty_cursor;
}
static void destroy_empty_cursor()
{
if (empty_cursor != None)
{
XFreeCursor((Display*)x11_disp, empty_cursor);
empty_cursor = None;
}
}
static void x11_capture_mouse()
{
x11_window_set_text("Reicast - mouse capture");
capturing_mouse = true;
Cursor cursor = create_empty_cursor();
Display *display = (Display*)x11_disp;
Window window = (Window)x11_win;
XDefineCursor(display, window, cursor);
XGrabPointer(display, window, False,
ButtonPressMask | ButtonReleaseMask | PointerMotionMask | FocusChangeMask,
GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
}
static void x11_uncapture_mouse()
{
x11_window_set_text("Reicast");
capturing_mouse = false;
Display *display = (Display*)x11_disp;
Window window = (Window)x11_win;
XUndefineCursor(display, window);
XUngrabPointer(display, CurrentTime);
}
void input_x11_handle()
{
if (!x11_win || (!x11_keyboard_input && !settings.input.DCKeyboard && !settings.input.DCMouse))
return;
//Handle X11
XEvent e;
while (XCheckWindowEvent((Display*)x11_disp, (Window)x11_win,
KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask
| PointerMotionMask | FocusChangeMask,
&e))
{
switch(e.type)
{
case KeyPress:
case KeyRelease:
{
// Dreamcast keyboard emulation
if (e.xkey.keycode == KEY_LSHIFT || e.xkey.keycode == KEY_RSHIFT)
if (e.type == KeyRelease)
kb_shift &= ~(0x02 | 0x20);
else
kb_shift |= (0x02 | 0x20);
if (e.xkey.keycode == KEY_LCTRL || e.xkey.keycode == KEY_RCTRL)
if (e.type == KeyRelease)
kb_shift &= ~(0x01 | 0x10);
else
kb_shift |= (0x01 | 0x10);
u8 dc_keycode = kb_map[e.xkey.keycode & 0xFF];
if (dc_keycode != 0)
{
if (e.type == KeyPress)
{
if (kb_used < 6)
{
bool found = false;
for (int i = 0; !found && i < 6; i++)
{
if (kb_key[i] == dc_keycode)
found = true;
}
if (!found)
{
kb_key[kb_used] = dc_keycode;
kb_used++;
}
}
}
else
{
if (kb_used > 0)
{
for (int i = 0; i < 6; i++)
{
if (kb_key[i] == dc_keycode)
{
kb_used--;
for (int j = i; j < 5; j++)
kb_key[j] = kb_key[j + 1];
}
}
}
}
}
if (settings.input.DCMouse)
{
// Start/stop mouse capture with Left Ctrl + Left Alt
if (e.type == KeyPress
&& ((e.xkey.keycode == KEY_LALT && (e.xkey.state & ControlMask))
|| (e.xkey.keycode == KEY_LCTRL && (e.xkey.state & Mod1Mask))))
{
capturing_mouse = !capturing_mouse;
if (capturing_mouse)
x11_capture_mouse();
else
x11_uncapture_mouse();
}
}
if (x11_keyboard_input)
{
// Normal keyboard handling
if (e.type == KeyRelease && e.xkey.keycode == KEY_ESC
&& !(e.xkey.state & (ControlMask | ShiftMask | Mod1Mask)))
{
dc_stop();
}
#ifndef RELEASE
else if (e.xkey.keycode == KEY_F10)
{
// Dump the next frame into a file
dump_frame_switch = e.type == KeyPress;
}
#elif FEAT_HAS_NIXPROF
else if (e.type == KeyRelease && e.xkey.keycode == KEY_F10)
{
if (sample_Switch(3000)) {
printf("Starting profiling\n");
} else {
printf("Stopping profiling\n");
}
}
#endif
else if (e.type == KeyRelease && e.xkey.keycode == KEY_F11)
{
x11_fullscreen = !x11_fullscreen;
x11_window_set_fullscreen(x11_fullscreen);
}
else if (e.type == KeyRelease && e.xkey.keycode == KEY_F2)
{
dc_savestate() ;
}
else if (e.type == KeyRelease && e.xkey.keycode == KEY_F4)
{
dc_loadstate() ;
}
else
{
int dc_key = x11_keymap[e.xkey.keycode];
if (dc_key == DC_AXIS_LT)
{
if (e.type == KeyPress)
lt[0] = 255;
else
lt[0] = 0;
}
else if (dc_key == DC_AXIS_RT)
{
if (e.type == KeyPress)
rt[0] = 255;
else
rt[0] = 0;
}
if (e.type == KeyPress)
{
kcode[0] &= ~dc_key;
}
else
{
kcode[0] |= dc_key;
}
#if defined(_DEBUG)
printf("KEY: %d -> %d: %d\n", e.xkey.keycode, dc_key, x11_dc_buttons );
#endif
}
}
}
break;
case FocusOut:
{
if (capturing_mouse)
x11_uncapture_mouse();
capturing_mouse = false;
}
break;
case ButtonPress:
case ButtonRelease:
{
u32 button_mask = 0;
if (e.xbutton.button == Button1)
button_mask = 1 << 2;
else if (e.xbutton.button == Button2)
button_mask = 1 << 1;
if (button_mask)
{
if (e.type == ButtonPress)
mo_buttons &= ~button_mask;
else
mo_buttons |= button_mask;
}
}
// FALL THROUGH
case MotionNotify:
{
static int prev_x = -1;
static int prev_y = -1;
if (settings.input.DCMouse)
{
if (prev_x != -1)
mo_x_delta += (f32)(e.xmotion.x - prev_x) * settings.input.MouseSensitivity / 1000.f;
if (prev_y != -1)
mo_y_delta += (f32)(e.xmotion.y - prev_y) * settings.input.MouseSensitivity / 1000.f;
if (capturing_mouse && (abs(x11_width / 2 - e.xmotion.x) > 10 || abs(x11_height / 2 - e.xmotion.y) > 10))
{
prev_x = x11_width / 2;
prev_y = x11_height / 2;
XWarpPointer((Display*)x11_disp, None, (Window)x11_win, 0, 0, 0, 0,
prev_x, prev_y);
}
else
{
prev_x = e.xmotion.x;
prev_y = e.xmotion.y;
}
}
}
break;
}
}
}
void input_x11_init()
{
x11_keymap[KEY_LEFT] = DC_DPAD_LEFT;
x11_keymap[KEY_RIGHT] = DC_DPAD_RIGHT;
x11_keymap[KEY_UP] = DC_DPAD_UP;
x11_keymap[KEY_DOWN] = DC_DPAD_DOWN;
// Layout on a real DC controller
// Y
// X B
// A
x11_keymap[KEY_S] = DC_BTN_X;
x11_keymap[KEY_X] = DC_BTN_A;
x11_keymap[KEY_D] = DC_BTN_Y;
x11_keymap[KEY_C] = DC_BTN_B;
// Used by some "arcade" controllers
x11_keymap[KEY_Q] = DC_BTN_Z;
x11_keymap[KEY_W] = DC_BTN_C;
x11_keymap[KEY_E] = DC_BTN_D;
// Start button (triangle)
x11_keymap[KEY_RETURN] = DC_BTN_START;
// Shoulder trigger
x11_keymap[KEY_F] = DC_AXIS_LT;
x11_keymap[KEY_V] = DC_AXIS_RT;
x11_keyboard_input = (cfgLoadInt("input", "enable_x11_keyboard", 1) >= 1);
if (!x11_keyboard_input)
printf("X11 Keyboard input disabled by config.\n");
init_kb_map();
}
void x11_window_create()
{
if (cfgLoadInt("pvr", "nox11", 0) == 0)
{
XInitThreads();
// X11 variables
Window x11Window = 0;
Display* x11Display = 0;
long x11Screen = 0;
XVisualInfo* x11Visual = 0;
Colormap x11Colormap = 0;
/*
Step 0 - Create a NativeWindowType that we can use it for OpenGL ES output
*/
Window sRootWindow;
XSetWindowAttributes sWA;
unsigned int ui32Mask;
int i32Depth;
// Initializes the display and screen
x11Display = XOpenDisplay(NULL);
if (!x11Display && !(x11Display = XOpenDisplay(":0")))
{
printf("Error: Unable to open X display\n");
return;
}
x11Screen = XDefaultScreen(x11Display);
// Gets the window parameters
sRootWindow = RootWindow(x11Display, x11Screen);
int depth = CopyFromParent;
#if !defined(GLES)
// Get a matching FB config
static int visual_attribs[] =
{
GLX_X_RENDERABLE , True,
GLX_DRAWABLE_TYPE , GLX_WINDOW_BIT,
GLX_RENDER_TYPE , GLX_RGBA_BIT,
GLX_X_VISUAL_TYPE , GLX_TRUE_COLOR,
GLX_RED_SIZE , 8,
GLX_GREEN_SIZE , 8,
GLX_BLUE_SIZE , 8,
GLX_ALPHA_SIZE , 8,
GLX_DEPTH_SIZE , 24,
GLX_STENCIL_SIZE , 8,
GLX_DOUBLEBUFFER , True,
//GLX_SAMPLE_BUFFERS , 1,
//GLX_SAMPLES , 4,
None
};
int glx_major, glx_minor;
// FBConfigs were added in GLX version 1.3.
if (!glXQueryVersion(x11Display, &glx_major, &glx_minor) ||
((glx_major == 1) && (glx_minor < 3)) || (glx_major < 1))
{
printf("Invalid GLX version");
exit(1);
}
int fbcount;
GLXFBConfig* fbc = glXChooseFBConfig(x11Display, x11Screen, visual_attribs, &fbcount);
if (!fbc)
{
printf("Failed to retrieve a framebuffer config\n");
exit(1);
}
printf("Found %d matching FB configs.\n", fbcount);
GLXFBConfig bestFbc = fbc[0];
XFree(fbc);
// Get a visual
XVisualInfo *vi = glXGetVisualFromFBConfig(x11Display, bestFbc);
printf("Chosen visual ID = 0x%lx\n", vi->visualid);
depth = vi->depth;
x11Visual = vi;
x11Colormap = XCreateColormap(x11Display, RootWindow(x11Display, x11Screen), vi->visual, AllocNone);
#else
i32Depth = DefaultDepth(x11Display, x11Screen);
x11Visual = new XVisualInfo;
XMatchVisualInfo(x11Display, x11Screen, i32Depth, TrueColor, x11Visual);
if (!x11Visual)
{
printf("Error: Unable to acquire visual\n");
return;
}
x11Colormap = XCreateColormap(x11Display, sRootWindow, x11Visual->visual, AllocNone);
#endif
sWA.colormap = x11Colormap;
// Add to these for handling other events
sWA.event_mask = StructureNotifyMask | ExposureMask | ButtonPressMask | ButtonReleaseMask | KeyPressMask | KeyReleaseMask;
if (settings.input.DCMouse)
sWA.event_mask |= PointerMotionMask | FocusChangeMask;
ui32Mask = CWBackPixel | CWBorderPixel | CWEventMask | CWColormap;
x11_width = cfgLoadInt("x11", "width", DEFAULT_WINDOW_WIDTH);
x11_height = cfgLoadInt("x11", "height", DEFAULT_WINDOW_HEIGHT);
x11_fullscreen = (cfgLoadInt("x11", "fullscreen", DEFAULT_FULLSCREEN) > 0);
if (x11_width < 0 || x11_height < 0)
{
x11_width = XDisplayWidth(x11Display, x11Screen);
x11_height = XDisplayHeight(x11Display, x11Screen);
}
// Creates the X11 window
x11Window = XCreateWindow(x11Display, RootWindow(x11Display, x11Screen), (ndcid%3)*640, (ndcid/3)*480, x11_width, x11_height,
0, depth, InputOutput, x11Visual->visual, ui32Mask, &sWA);
// Capture the close window event
wmDeleteMessage = XInternAtom(x11Display, "WM_DELETE_WINDOW", False);
XSetWMProtocols(x11Display, x11Window, &wmDeleteMessage, 1);
if(x11_fullscreen)
{
// fullscreen
Atom wmState = XInternAtom(x11Display, "_NET_WM_STATE", False);
Atom wmFullscreen = XInternAtom(x11Display, "_NET_WM_STATE_FULLSCREEN", False);
XChangeProperty(x11Display, x11Window, wmState, XA_ATOM, 32, PropModeReplace, (unsigned char *)&wmFullscreen, 1);
XMapRaised(x11Display, x11Window);
}
else
{
XMapWindow(x11Display, x11Window);
}
#if !defined(GLES)
#define GLX_CONTEXT_MAJOR_VERSION_ARB 0x2091
#define GLX_CONTEXT_MINOR_VERSION_ARB 0x2092
typedef GLXContext (*glXCreateContextAttribsARBProc)(Display*, GLXFBConfig, GLXContext, Bool, const int*);
glXCreateContextAttribsARBProc glXCreateContextAttribsARB = 0;
glXCreateContextAttribsARB = (glXCreateContextAttribsARBProc)glXGetProcAddressARB((const GLubyte*)"glXCreateContextAttribsARB");
verify(glXCreateContextAttribsARB != 0);
int context_attribs[] =
{
GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
GLX_CONTEXT_MINOR_VERSION_ARB, 1,
GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_DEBUG_BIT_ARB,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
None
};
x11_glc = glXCreateContextAttribsARB(x11Display, bestFbc, 0, True, context_attribs);
XSync(x11Display, False);
if (!x11_glc)
{
die("Failed to create GL3.1 context\n");
}
#endif
XFlush(x11Display);
//(EGLNativeDisplayType)x11Display;
x11_disp = (void*)x11Display;
x11_win = (void*)x11Window;
x11_vis = (void*)x11Visual->visual;
x11_window_set_text("Reicast");
}
else
{
printf("Not creating X11 window ..\n");
}
}
void x11_window_set_text(const char* text)
{
if (x11_win)
{
XChangeProperty((Display*)x11_disp, (Window)x11_win,
XInternAtom((Display*)x11_disp, "WM_NAME", False), //WM_NAME,
XInternAtom((Display*)x11_disp, "UTF8_STRING", False), //UTF8_STRING,
8, PropModeReplace, (const unsigned char *)text, strlen(text));
}
}
void x11_gl_context_destroy()
{
glXMakeCurrent((Display*)x11_disp, None, NULL);
glXDestroyContext((Display*)x11_disp, x11_glc);
}
void x11_window_destroy()
{
// close XWindow
if (x11_win)
{
XDestroyWindow((Display*)x11_disp, (Window)x11_win);
x11_win = NULL;
}
if (x11_disp)
{
#if !defined(GLES)
if (x11_glc)
{
glXMakeCurrent((Display*)x11_disp, None, NULL);
glXDestroyContext((Display*)x11_disp, (GLXContext)x11_glc);
x11_glc = NULL;
}
#endif
XCloseDisplay((Display*)x11_disp);
x11_disp = NULL;
}
}
#endif
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