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RetroArch/gfx/drivers_context/x_ctx.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
* Copyright (C) 2016-2019 - Brad Parker
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include <stdlib.h>
#include <signal.h>
#ifdef HAVE_CONFIG_H
#include "../../config.h"
#endif
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
#include <GL/glx.h>
#include <glsym/rglgen.h>
#ifndef GLX_SAMPLE_BUFFERS
#define GLX_SAMPLE_BUFFERS 100000
#endif
#ifndef GLX_SAMPLES
#define GLX_SAMPLES 100001
#endif
#endif
#include <string/stdstring.h>
#include <compat/strcasestr.h>
#include <X11/Xatom.h>
#include "../../configuration.h"
#include "../../frontend/frontend_driver.h"
#include "../../input/input_driver.h"
#include "../../verbosity.h"
#include "../common/gl_common.h"
#include "../common/x11_common.h"
#ifdef HAVE_XINERAMA
#include "../common/xinerama_common.h"
#endif
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
static int (*g_pglSwapInterval)(int);
static int (*g_pglSwapIntervalSGI)(int);
static void (*g_pglSwapIntervalEXT)(Display*, GLXDrawable, int);
#endif
typedef struct gfx_ctx_x_data
{
bool use_hw_ctx;
bool core_es;
bool core_es_core;
bool debug;
#ifdef HAVE_XF86VM
bool should_reset_mode;
#endif
bool is_fullscreen;
bool is_double;
bool core_hw_context_enable;
bool adaptive_vsync;
bool msaa_enable;
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
GLXWindow glx_win;
GLXContext ctx, hw_ctx;
GLXFBConfig fbc;
unsigned swap_mode;
#endif
int interval;
} gfx_ctx_x_data_t;
/* TODO/FIXME - static globals */
static unsigned g_major = 0;
static unsigned g_minor = 0;
static enum gfx_ctx_api x_api = GFX_CTX_NONE;
static gfx_ctx_x_data_t *current_context_data = NULL;
typedef struct Hints
{
unsigned long flags;
unsigned long functions;
unsigned long decorations;
long inputMode;
unsigned long status;
} Hints;
/* We use long because X11 wants 32-bit pixels for 32-bit systems and 64 for 64... */
/* ARGB*/
static const unsigned long retroarch_icon_data[] = {
16, 16,
0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
0x00000000,0x00000000,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0x00000000,0x00000000,0x00000000,
0x00000000,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0x00000000,0x00000000,
0x00000000,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0x00000000,0x00000000,
0x00000000,0xff333333,0xff333333,0xff333333,0xfff2f2f2,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xfff2f2f2,0xff333333,0xff333333,0xff333333,0x00000000,0x00000000,
0x00000000,0xff333333,0xfff2f2f2,0xff333333,0xff333333,0xfff2f2f2,0xff333333,0xff333333,0xff333333,0xfff2f2f2,0xff333333,0xff333333,0xfff2f2f2,0xff333333,0x00000000,0x00000000,
0x00000000,0xff333333,0xfff2f2f2,0xff333333,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xff333333,0xfff2f2f2,0xff333333,0x00000000,0x00000000,
0x00000000,0xff333333,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xff333333,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xff333333,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xff333333,0x00000000,0x00000000,
0x00000000,0xff333333,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xff333333,0x00000000,0x00000000,
0x00000000,0xff333333,0xff333333,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xfff2f2f2,0xff333333,0xff333333,0x00000000,0x00000000,
0x00000000,0xff333333,0xff333333,0xff333333,0xfff2f2f2,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xfff2f2f2,0xff333333,0xff333333,0xff333333,0x00000000,0x00000000,
0x00000000,0xff333333,0xff333333,0xfff2f2f2,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xfff2f2f2,0xff333333,0xff333333,0x00000000,0x00000000,
0x00000000,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0x00000000,0x00000000,
0x00000000,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0x00000000,0x00000000,
0x00000000,0x00000000,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0xff333333,0x00000000,0x00000000,0x00000000,
0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000
};
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
static PFNGLXCREATECONTEXTATTRIBSARBPROC glx_create_context_attribs;
static int GLXExtensionSupported(Display *dpy, const char *ext)
{
const char *ext_string = glXQueryExtensionsString(dpy, DefaultScreen(dpy));
const char *client_extensions = glXGetClientString(dpy, GLX_EXTENSIONS);
const char *pos = strstr(ext_string, ext);
size_t pos_ext_len = strlen(ext);
if ( pos
&& (pos == ext_string || pos[-1] == ' ')
&& (pos[pos_ext_len] == ' ' || pos[pos_ext_len] == '\0')
)
return 1;
pos = strstr(client_extensions, ext);
pos_ext_len = strlen(ext);
if (
pos
&& (pos == ext_string || pos[-1] == ' ')
&& (pos[pos_ext_len] == ' ' || pos[pos_ext_len] == '\0')
)
return 1;
return 0;
}
static int x_log_error_handler(Display *dpy, XErrorEvent *event)
{
char buf[1024];
XGetErrorText(dpy, event->error_code, buf, sizeof buf);
RARCH_WARN("[GLX]: X error message: %s, request code: %d, minor code: %d\n",
buf, event->request_code, event->minor_code);
return 0;
}
#endif
static int x_nul_handler(Display *dpy, XErrorEvent *event) { return 0; }
static void gfx_ctx_x_destroy_resources(gfx_ctx_x_data_t *x)
{
x11_input_ctx_destroy();
if (g_x11_dpy)
{
switch (x_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
if (x->ctx)
{
uint32_t video_st_flags;
video_driver_state_t *video_st = video_state_get_ptr();
glXSwapBuffers(g_x11_dpy, x->glx_win);
gl_finish();
glXMakeContextCurrent(g_x11_dpy, None, None, NULL);
video_st_flags = video_st->flags;
if (!(video_st_flags & VIDEO_FLAG_CACHE_CONTEXT))
{
if (x->hw_ctx)
glXDestroyContext(g_x11_dpy, x->hw_ctx);
if (x->ctx)
glXDestroyContext(g_x11_dpy, x->ctx);
x->ctx = NULL;
x->hw_ctx = NULL;
}
}
if (g_x11_win)
{
if (x->glx_win)
glXDestroyWindow(g_x11_dpy, x->glx_win);
x->glx_win = 0;
}
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
}
if (g_x11_win && g_x11_dpy)
{
#ifdef HAVE_XINERAMA
/* Save last used monitor for later. */
xinerama_save_last_used_monitor(DefaultRootWindow(g_x11_dpy));
#endif
x11_window_destroy(false);
}
x11_colormap_destroy();
#ifdef HAVE_XF86VM
if (g_x11_dpy)
{
if (x->should_reset_mode)
{
x11_exit_fullscreen(g_x11_dpy);
x->should_reset_mode = false;
}
}
#endif
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
g_pglSwapInterval = NULL;
g_pglSwapIntervalSGI = NULL;
g_pglSwapIntervalEXT = NULL;
#endif
g_major = 0;
g_minor = 0;
x->core_es = false;
}
static void gfx_ctx_x_destroy(void *data)
{
gfx_ctx_x_data_t *x = (gfx_ctx_x_data_t*)data;
if (!x)
return;
gfx_ctx_x_destroy_resources(x);
free(data);
}
static void gfx_ctx_x_swap_interval(void *data, int interval)
{
gfx_ctx_x_data_t *x = (gfx_ctx_x_data_t*)data;
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
x->interval = interval;
if (x->swap_mode)
{
if (g_pglSwapInterval)
{
if (g_pglSwapInterval(x->interval) != 0)
RARCH_WARN("[GLX]: glXSwapInterval(%i) failed.\n", x->interval);
}
else if (g_pglSwapIntervalEXT)
g_pglSwapIntervalEXT(g_x11_dpy, x->glx_win, x->interval);
else if (g_pglSwapIntervalSGI)
{
if (g_pglSwapIntervalSGI(x->interval) != 0)
RARCH_WARN("[GLX]: glXSwapIntervalSGI(%i) failed.\n", x->interval);
}
}
else
{
if (g_pglSwapIntervalEXT)
g_pglSwapIntervalEXT(g_x11_dpy, x->glx_win, x->interval);
else if (g_pglSwapInterval)
{
if (g_pglSwapInterval(x->interval) != 0)
RARCH_WARN("[GLX]: glXSwapInterval(%i) failed.\n", x->interval);
}
else if (g_pglSwapIntervalSGI)
{
if (g_pglSwapIntervalSGI(x->interval) != 0)
RARCH_WARN("[GLX]: glXSwapIntervalSGI(%i) failed.\n", x->interval);
}
}
#endif
}
static void gfx_ctx_x_swap_buffers(void *data)
{
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
gfx_ctx_x_data_t *x = (gfx_ctx_x_data_t*)data;
if (x->is_double)
glXSwapBuffers(g_x11_dpy, x->glx_win);
#endif
}
static bool gfx_ctx_x_set_resize(void *data,
unsigned width, unsigned height)
{
gfx_ctx_x_data_t *x = (gfx_ctx_x_data_t*)data;
if (!x)
return false;
/*
* X11 loses focus on monitor/resolution swap and exits fullscreen.
* Set window on top again to maintain both fullscreen and resolution.
*/
if (x->is_fullscreen)
{
XMapRaised(g_x11_dpy, g_x11_win);
RARCH_LOG("[GLX]: Resized fullscreen resolution to %dx%d.\n", width, height);
}
return true;
}
static void *gfx_ctx_x_init(void *data)
{
int nelements = 0;
int major = 0;
int minor = 0;
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
static const int visual_attribs[] = {
GLX_X_RENDERABLE , True,
GLX_DRAWABLE_TYPE , GLX_WINDOW_BIT,
GLX_RENDER_TYPE , GLX_RGBA_BIT,
GLX_DOUBLEBUFFER , True,
GLX_RED_SIZE , 8,
GLX_GREEN_SIZE , 8,
GLX_BLUE_SIZE , 8,
GLX_ALPHA_SIZE , 8,
GLX_DEPTH_SIZE , 0,
GLX_STENCIL_SIZE , 0,
GLX_SAMPLE_BUFFERS , 0,
GLX_SAMPLES , 0,
None
};
GLXFBConfig *fbcs = NULL;
#endif
gfx_ctx_x_data_t *x = (gfx_ctx_x_data_t*)
calloc(1, sizeof(gfx_ctx_x_data_t));
#ifndef GL_DEBUG
struct retro_hw_render_callback *hwr =
video_driver_get_hw_context();
#endif
if (!x)
return NULL;
current_context_data = x;
XInitThreads();
if (!x11_connect())
goto error;
switch (x_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGLES) || defined(HAVE_OPENGL_CORE)
glXQueryVersion(g_x11_dpy, &major, &minor);
/* GLX 1.3+ minimum required. */
if ((major * 1000 + minor) < 1003)
goto error;
glx_create_context_attribs = (PFNGLXCREATECONTEXTATTRIBSARBPROC)
glXGetProcAddress((const GLubyte*)"glXCreateContextAttribsARB");
#ifdef GL_DEBUG
x->debug = true;
#else
x->debug = hwr->debug_context;
#endif
/* Have to use ContextAttribs */
#ifdef HAVE_OPENGLES2
x->core_es = true;
x->core_es_core = true;
#else
x->core_es = (g_major * 1000 + g_minor) >= 3001;
x->core_es_core = (g_major * 1000 + g_minor) >= 3002;
#endif
if ((x->core_es || x->debug) && !glx_create_context_attribs)
goto error;
fbcs = glXChooseFBConfig(g_x11_dpy, DefaultScreen(g_x11_dpy),
visual_attribs, &nelements);
if (!fbcs)
goto error;
if (!nelements)
{
XFree(fbcs);
goto error;
}
x->fbc = fbcs[0];
XFree(fbcs);
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
switch (x_api)
{
case GFX_CTX_OPENGL_API:
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
if (GLXExtensionSupported(g_x11_dpy, "GLX_EXT_swap_control_tear"))
{
RARCH_LOG("[GLX]: GLX_EXT_swap_control_tear supported.\n");
x->adaptive_vsync = true;
}
if ( GLXExtensionSupported(g_x11_dpy, "GLX_OML_sync_control")
&& GLXExtensionSupported(g_x11_dpy, "GLX_MESA_swap_control")
)
x->swap_mode = 1;
#endif
break;
default:
break;
}
return x;
error:
if (x)
{
gfx_ctx_x_destroy_resources(x);
free(x);
}
g_x11_screen = 0;
return NULL;
}
static bool gfx_ctx_x_set_video_mode(void *data,
unsigned width, unsigned height,
bool fullscreen)
{
XEvent event;
#ifdef HAVE_XF86VM
bool true_full = false;
#endif
int val = 0;
int x_off = 0;
int y_off = 0;
XVisualInfo *vi = NULL;
XSetWindowAttributes swa = {0};
int (*old_handler)(Display*, XErrorEvent*) = NULL;
gfx_ctx_x_data_t *x = (gfx_ctx_x_data_t*)data;
Atom net_wm_icon = XInternAtom(g_x11_dpy, "_NET_WM_ICON", False);
Atom cardinal = XInternAtom(g_x11_dpy, "CARDINAL", False);
settings_t *settings = config_get_ptr();
unsigned opacity = settings->uints.video_window_opacity
* ((unsigned)-1 / 100.0);
bool disable_composition = settings->bools.video_disable_composition;
bool show_decorations = settings->bools.video_window_show_decorations;
bool windowed_full = settings->bools.video_windowed_fullscreen;
unsigned video_monitor_index = settings->uints.video_monitor_index;
frontend_driver_install_signal_handler();
if (!x)
return false;
switch (x_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
vi = glXGetVisualFromFBConfig(g_x11_dpy, x->fbc);
if (!vi)
goto error;
#endif
break;
case GFX_CTX_NONE:
default:
{
XVisualInfo vi_template;
/* For default case, just try to obtain a visual from template. */
int nvisuals = 0;
memset(&vi_template, 0, sizeof(vi_template));
vi_template.screen = DefaultScreen(g_x11_dpy);
vi = XGetVisualInfo(g_x11_dpy, VisualScreenMask, &vi_template, &nvisuals);
if (!vi || nvisuals < 1)
goto error;
}
break;
}
swa.colormap = g_x11_cmap = XCreateColormap(g_x11_dpy,
RootWindow(g_x11_dpy, vi->screen), vi->visual, AllocNone);
swa.event_mask = StructureNotifyMask | KeyPressMask | KeyReleaseMask |
LeaveWindowMask | EnterWindowMask |
ButtonReleaseMask | ButtonPressMask;
swa.override_redirect = False;
x->is_fullscreen = fullscreen;
#ifdef HAVE_XF86VM
if (fullscreen && !windowed_full)
{
if (x11_enter_fullscreen(g_x11_dpy, width, height))
{
char *wm_name = x11_get_wm_name(g_x11_dpy);
x->should_reset_mode = true;
true_full = true;
if (wm_name)
{
RARCH_LOG("[GLX]: Window manager is %s.\n", wm_name);
if (strcasestr(wm_name, "xfwm"))
{
RARCH_LOG("[GLX]: Using override-redirect workaround.\n");
swa.override_redirect = True;
}
free(wm_name);
}
if (!x11_has_net_wm_fullscreen(g_x11_dpy))
swa.override_redirect = True;
}
else
RARCH_ERR("[GLX]: Entering true fullscreen failed. Will attempt windowed mode.\n");
}
#endif
if (video_monitor_index)
g_x11_screen = video_monitor_index - 1;
#ifdef HAVE_XINERAMA
if (fullscreen || g_x11_screen != 0)
{
unsigned new_width = width;
unsigned new_height = height;
if (xinerama_get_coord(g_x11_dpy, g_x11_screen,
&x_off, &y_off, &new_width, &new_height))
RARCH_LOG("[GLX]: Using Xinerama on screen #%u.\n", g_x11_screen);
else
RARCH_LOG("[GLX]: Xinerama is not active on screen.\n");
if (fullscreen)
{
width = new_width;
height = new_height;
}
}
#endif
RARCH_LOG("[GLX]: X = %d, Y = %d, W = %u, H = %u.\n",
x_off, y_off, width, height);
g_x11_win = XCreateWindow(g_x11_dpy, RootWindow(g_x11_dpy, vi->screen),
x_off, y_off, width, height, 0,
vi->depth, InputOutput, vi->visual,
CWBorderPixel | CWColormap | CWEventMask | CWOverrideRedirect,
&swa);
XSetWindowBackground(g_x11_dpy, g_x11_win, 0);
XChangeProperty(g_x11_dpy, g_x11_win, net_wm_icon, cardinal, 32, PropModeReplace, (const unsigned char*)retroarch_icon_data, sizeof(retroarch_icon_data) / sizeof(*retroarch_icon_data));
if (fullscreen && disable_composition)
{
uint32_t value = 1;
Atom net_wm_bypass_compositor = XInternAtom(g_x11_dpy, "_NET_WM_BYPASS_COMPOSITOR", False);
RARCH_LOG("[GLX]: Requesting compositor bypass.\n");
XChangeProperty(g_x11_dpy, g_x11_win, net_wm_bypass_compositor, cardinal, 32, PropModeReplace, (const unsigned char*)&value, 1);
}
if (opacity < (unsigned)-1)
{
Atom net_wm_opacity = XInternAtom(g_x11_dpy, "_NET_WM_WINDOW_OPACITY", False);
XChangeProperty(g_x11_dpy, g_x11_win, net_wm_opacity, cardinal, 32, PropModeReplace, (const unsigned char*)&opacity, 1);
}
if (!show_decorations)
{
/* We could have just set _NET_WM_WINDOW_TYPE_DOCK instead,
* but that removes the window from any taskbar/panel,
* so we are forced to use the old motif hints method. */
Hints hints;
Atom property = XInternAtom(g_x11_dpy, "_MOTIF_WM_HINTS", False);
hints.flags = 2;
hints.decorations = 0;
XChangeProperty(g_x11_dpy, g_x11_win, property, property, 32, PropModeReplace, (const unsigned char*)&hints, 5);
}
switch (x_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
x->glx_win = glXCreateWindow(g_x11_dpy, x->fbc, g_x11_win, 0);
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
x11_set_window_attr(g_x11_dpy, g_x11_win);
x11_update_title(NULL);
if (fullscreen)
x11_show_mouse(data, false);
#ifdef HAVE_XF86VM
if (true_full)
{
RARCH_LOG("[GLX]: Using true fullscreen.\n");
XMapRaised(g_x11_dpy, g_x11_win);
x11_set_net_wm_fullscreen(g_x11_dpy, g_x11_win);
}
else
#endif
if (fullscreen)
{
/* We attempted true fullscreen, but failed.
* Attempt using windowed fullscreen. */
XMapRaised(g_x11_dpy, g_x11_win);
RARCH_LOG("[GLX]: Using windowed fullscreen.\n");
/* We have to move the window to the screen we want
* to go fullscreen on first.
* x_off and y_off usually get ignored in XCreateWindow().
*/
x11_move_window(g_x11_dpy, g_x11_win, x_off, y_off, width, height);
x11_set_net_wm_fullscreen(g_x11_dpy, g_x11_win);
}
else
{
XMapWindow(g_x11_dpy, g_x11_win);
/* If we want to map the window on a different screen,
* we'll have to do it by force.
* Otherwise, we should try to let the window manager sort it out.
* x_off and y_off usually get ignored in XCreateWindow(). */
if (g_x11_screen)
x11_move_window(g_x11_dpy, g_x11_win, x_off, y_off, width, height);
}
x11_event_queue_check(&event);
switch (x_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
if (!x->ctx)
{
if (x->core_es || x->debug)
{
int attribs[16] = {0};
int *aptr = attribs;
if (x->core_es)
{
*aptr++ = GLX_CONTEXT_MAJOR_VERSION_ARB;
*aptr++ = g_major;
*aptr++ = GLX_CONTEXT_MINOR_VERSION_ARB;
*aptr++ = g_minor;
if (x->core_es_core)
{
/* Technically, we don't have core/compat until 3.2.
* Version 3.1 is either compat or not depending on
* GL_ARB_compatibility.
*/
*aptr++ = GLX_CONTEXT_PROFILE_MASK_ARB;
#ifdef HAVE_OPENGLES2
*aptr++ = GLX_CONTEXT_ES_PROFILE_BIT_EXT;
#else
*aptr++ = GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
#endif
}
}
if (x->debug)
{
*aptr++ = GLX_CONTEXT_FLAGS_ARB;
*aptr++ = GLX_CONTEXT_DEBUG_BIT_ARB;
}
*aptr = None;
old_handler = XSetErrorHandler(x_log_error_handler);
/* In order to support the core info "required_hw_api" field correctly, we should try to init the highest available
* version GL context possible. This means trying successively lower versions until it works, because GL has
* no facility for determining the highest possible supported version.
*/
{
int i;
int (*versions)[2];
int gl_versions[][2] = {{4, 6}, {4, 5}, {4, 4}, {4, 3}, {4, 2}, {4, 1}, {4, 0}, {3, 3}, {3, 2}, {3, 1}, {3, 0}};
#ifdef HAVE_OPENGLES3
int gles_versions[][2] = {{3, 2}, {3, 1}, {3, 0}, {2, 0}, {1, 1}, {1, 0}};
#else
int gles_versions[][2] = {{2, 0}, {1, 1}, {1, 0}};
#endif
int gl_version_rows = ARRAY_SIZE(gl_versions);
int gles_version_rows = ARRAY_SIZE(gles_versions);
int version_rows = 0;
if (x_api == GFX_CTX_OPENGL_API)
{
versions = gl_versions;
version_rows = gl_version_rows;
}
else
{
versions = gles_versions;
version_rows = gles_version_rows;
}
/* Mesa/X currently crashes when an unsupported version is
* requested. Since Mesa always seems to return a context
* of the highest compatible version, we start with the
* requested version first.
* The following code can hopefully be removed in the future:
*/
RARCH_LOG("[GLX]: Creating context for requested version %u.%u.\n", g_major, g_minor);
x->ctx = glx_create_context_attribs(g_x11_dpy,
x->fbc, NULL, True, attribs);
if (x->ctx)
{
const char *version;
if (x->use_hw_ctx)
{
RARCH_LOG("[GLX]: Creating shared HW context.\n");
x->hw_ctx = glx_create_context_attribs(g_x11_dpy,
x->fbc, x->ctx, True, attribs);
if (!x->hw_ctx)
RARCH_ERR("[GLX]: Failed to create new shared context.\n");
}
glXMakeContextCurrent(g_x11_dpy,
x->glx_win, x->glx_win, x->ctx);
version = (const char*)glGetString(GL_VERSION);
if (strstr(version, " Mesa ") || !x->core_es)
{
/* we are done, break switch case */
XSetErrorHandler(old_handler);
break;
}
glXMakeContextCurrent(g_x11_dpy, None, None, NULL);
glXDestroyContext(g_x11_dpy, x->ctx);
RARCH_LOG("[GLX]: Not running Mesa, trying higher versions...\n");
}
else
{
RARCH_ERR("[GLX]: Failed to create new context.\n");
goto error;
}
/* end of Mesa workaround / code to be removed */
/* only try higher versions when x->core_es is true */
if (!x->core_es)
version_rows = 1;
/* try versions from highest down to requested version */
for (i = 0; i < version_rows; i++)
{
if (x->core_es)
{
attribs[1] = versions[i][0];
attribs[3] = versions[i][1];
RARCH_LOG("[GLX]: Creating context for version %d.%d.\n", versions[i][0], versions[i][1]);
}
else
RARCH_LOG("[GLX]: Creating context for version %u.%u.\n", g_major, g_minor);
x->ctx = glx_create_context_attribs(g_x11_dpy,
x->fbc, NULL, True, attribs);
if (x->ctx)
{
if (x->use_hw_ctx)
{
RARCH_LOG("[GLX]: Creating shared HW context.\n");
x->hw_ctx = glx_create_context_attribs(g_x11_dpy,
x->fbc, x->ctx, True, attribs);
if (!x->hw_ctx)
RARCH_ERR("[GLX]: Failed to create new shared context.\n");
}
break;
}
else if (versions[i][0] == (int)g_major && versions[i][1] == (int)g_minor)
{
/* The requested version was tried and is not supported, go ahead and fail since everything else will be lower than that. */
break;
}
}
}
XSetErrorHandler(old_handler);
}
else
{
x->ctx = glXCreateNewContext(g_x11_dpy, x->fbc,
GLX_RGBA_TYPE, 0, True);
if (x->use_hw_ctx)
{
RARCH_LOG("[GLX]: Creating shared HW context.\n");
x->hw_ctx = glXCreateNewContext(g_x11_dpy, x->fbc,
GLX_RGBA_TYPE, x->ctx, True);
if (!x->hw_ctx)
RARCH_ERR("[GLX]: Failed to create new shared context.\n");
}
}
if (!x->ctx)
{
RARCH_ERR("[GLX]: Failed to create new context.\n");
goto error;
}
}
else
{
video_state_get_ptr()->flags |= VIDEO_FLAG_CACHE_CONTEXT_ACK;
RARCH_LOG("[GLX]: Using cached GL context.\n");
}
glXMakeContextCurrent(g_x11_dpy,
x->glx_win, x->glx_win, x->ctx);
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
XSync(g_x11_dpy, False);
x11_install_quit_atom();
switch (x_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
glXGetConfig(g_x11_dpy, vi, GLX_DOUBLEBUFFER, &val);
x->is_double = val;
if (x->is_double)
{
const char *swap_func = NULL;
g_pglSwapIntervalEXT = (void (*)(Display*, GLXDrawable, int))
glXGetProcAddress((const GLubyte*)"glXSwapIntervalEXT");
g_pglSwapIntervalSGI = (int (*)(int))
glXGetProcAddress((const GLubyte*)"glXSwapIntervalSGI");
g_pglSwapInterval = (int (*)(int))
glXGetProcAddress((const GLubyte*)"glXSwapIntervalMESA");
if (g_pglSwapIntervalEXT)
swap_func = "glXSwapIntervalEXT";
else if (g_pglSwapInterval)
swap_func = "glXSwapIntervalMESA";
else if (g_pglSwapIntervalSGI)
swap_func = "glXSwapIntervalSGI";
if (!g_pglSwapInterval && !g_pglSwapIntervalEXT && !g_pglSwapIntervalSGI)
RARCH_WARN("[GLX]: Cannot find swap interval call.\n");
else
RARCH_LOG("[GLX]: Found swap function: %s.\n", swap_func);
}
else
RARCH_WARN("[GLX]: Context is not double buffered!.\n");
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
gfx_ctx_x_swap_interval(data, x->interval);
/* This can blow up on some drivers.
* It's not fatal, so override errors for this call. */
old_handler = XSetErrorHandler(x_nul_handler);
XSetInputFocus(g_x11_dpy, g_x11_win, RevertToNone, CurrentTime);
XSync(g_x11_dpy, False);
XSetErrorHandler(old_handler);
XFree(vi);
vi = NULL;
#ifdef HAVE_XF86VM
if (!x11_input_ctx_new(true_full))
goto error;
#else
if (!x11_input_ctx_new(false))
goto error;
#endif
return true;
error:
if (vi)
XFree(vi);
gfx_ctx_x_destroy_resources(x);
if (x)
free(x);
g_x11_screen = 0;
return false;
}
static void gfx_ctx_x_input_driver(void *data,
const char *joypad_name,
input_driver_t **input, void **input_data)
{
void *x_input = NULL;
#ifdef HAVE_UDEV
settings_t *settings = config_get_ptr();
const char *input_driver = settings->arrays.input_driver;
if (string_is_equal(input_driver, "udev"))
{
*input_data = input_driver_init_wrap(&input_udev, joypad_name);
if (*input_data)
{
*input = &input_udev;
return;
}
}
#endif
x_input = input_driver_init_wrap(&input_x, joypad_name);
*input = x_input ? &input_x : NULL;
*input_data = x_input;
}
static gfx_ctx_proc_t gfx_ctx_x_get_proc_address(const char *symbol)
{
switch (x_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
return glXGetProcAddress((const GLubyte*)symbol);
#else
break;
#endif
case GFX_CTX_NONE:
default:
break;
}
return NULL;
}
static enum gfx_ctx_api gfx_ctx_x_get_api(void *data)
{
return x_api;
}
static bool gfx_ctx_x_bind_api(void *data, enum gfx_ctx_api api,
unsigned major, unsigned minor)
{
g_major = major;
g_minor = minor;
x_api = api;
switch (api)
{
case GFX_CTX_OPENGL_API:
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
return true;
#else
break;
#endif
case GFX_CTX_OPENGL_ES_API:
#ifdef HAVE_OPENGLES2
{
Display *dpy = XOpenDisplay(NULL);
const char *exts = glXQueryExtensionsString(dpy, DefaultScreen(dpy));
bool ret = exts && strstr(exts,
"GLX_EXT_create_context_es2_profile");
XCloseDisplay(dpy);
if (ret && g_major < 3)
{
g_major = 2; /* ES 2.0. */
g_minor = 0;
}
return ret;
}
#else
break;
#endif
case GFX_CTX_NONE:
default:
break;
}
return false;
}
static void gfx_ctx_x_bind_hw_render(void *data, bool enable)
{
gfx_ctx_x_data_t *x = (gfx_ctx_x_data_t*)data;
if (!x)
return;
switch (x_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
x->use_hw_ctx = enable;
if (!g_x11_dpy || !x->glx_win)
return;
glXMakeContextCurrent(g_x11_dpy, x->glx_win,
x->glx_win, enable ? x->hw_ctx : x->ctx);
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
}
static uint32_t gfx_ctx_x_get_flags(void *data)
{
uint32_t flags = 0;
gfx_ctx_x_data_t *x = (gfx_ctx_x_data_t*)data;
switch (x_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
if (x->adaptive_vsync)
BIT32_SET(flags, GFX_CTX_FLAGS_ADAPTIVE_VSYNC);
if (x->core_hw_context_enable || x->core_es)
BIT32_SET(flags, GFX_CTX_FLAGS_GL_CORE_CONTEXT);
if (x->msaa_enable)
BIT32_SET(flags, GFX_CTX_FLAGS_MULTISAMPLING);
if (string_is_equal(video_driver_get_ident(), "gl1")) { }
else if (string_is_equal(video_driver_get_ident(), "glcore"))
{
#if defined(HAVE_SLANG) && defined(HAVE_SPIRV_CROSS)
BIT32_SET(flags, GFX_CTX_FLAGS_SHADERS_SLANG);
#endif
}
else
{
#ifdef HAVE_CG
if (!(x->core_hw_context_enable || x->core_es))
BIT32_SET(flags, GFX_CTX_FLAGS_SHADERS_CG);
#endif
#ifdef HAVE_GLSL
BIT32_SET(flags, GFX_CTX_FLAGS_SHADERS_GLSL);
#endif
}
break;
case GFX_CTX_NONE:
default:
break;
}
return flags;
}
static void gfx_ctx_x_set_flags(void *data, uint32_t flags)
{
gfx_ctx_x_data_t *x = (gfx_ctx_x_data_t*)data;
switch (x_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
if (BIT32_GET(flags, GFX_CTX_FLAGS_ADAPTIVE_VSYNC))
x->adaptive_vsync = true;
if (BIT32_GET(flags, GFX_CTX_FLAGS_GL_CORE_CONTEXT))
x->core_hw_context_enable = true;
if (BIT32_GET(flags, GFX_CTX_FLAGS_MULTISAMPLING))
x->msaa_enable = true;
break;
case GFX_CTX_NONE:
default:
break;
}
}
static void gfx_ctx_x_make_current(bool release)
{
if (!current_context_data)
return;
switch (x_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGL1) || defined(HAVE_OPENGL_CORE)
if (release)
glXMakeContextCurrent(g_x11_dpy, None, None, NULL);
else
glXMakeContextCurrent(g_x11_dpy,
current_context_data->glx_win,
current_context_data->glx_win, current_context_data->ctx);
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
}
const gfx_ctx_driver_t gfx_ctx_x = {
gfx_ctx_x_init,
gfx_ctx_x_destroy,
gfx_ctx_x_get_api,
gfx_ctx_x_bind_api,
gfx_ctx_x_swap_interval,
gfx_ctx_x_set_video_mode,
x11_get_video_size,
#ifdef HAVE_XF86VM
x11_get_refresh_rate,
#else
NULL,
#endif
NULL, /* get_video_output_size */
NULL, /* get_video_output_prev */
NULL, /* get_video_output_next */
x11_get_metrics,
NULL,
x11_update_title,
x11_check_window,
gfx_ctx_x_set_resize,
x11_has_focus,
x11_suspend_screensaver,
true, /* has_windowed */
gfx_ctx_x_swap_buffers,
gfx_ctx_x_input_driver,
gfx_ctx_x_get_proc_address,
NULL,
NULL,
x11_show_mouse,
"x",
gfx_ctx_x_get_flags,
gfx_ctx_x_set_flags,
gfx_ctx_x_bind_hw_render,
NULL,
gfx_ctx_x_make_current
};
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