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RetroArch/gfx/drivers_context/x_ctx.c
twinaphex ed86a2ed10 Add threading error notes
2017-05-06 17:35:12 +02:00

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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) 2016-2017 - 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
#ifdef HAVE_OPENGL
#include <GL/glx.h>
#ifndef GLX_SAMPLE_BUFFERS
#define GLX_SAMPLE_BUFFERS 100000
#endif
#ifndef GLX_SAMPLES
#define GLX_SAMPLES 100001
#endif
#endif
#include "../../frontend/frontend_driver.h"
#include "../common/gl_common.h"
#include "../common/x11_common.h"
#ifdef HAVE_XINERAMA
#include "../common/xinerama_common.h"
#endif
#ifdef HAVE_VULKAN
#include "../common/vulkan_common.h"
#endif
#ifdef HAVE_OPENGL
static int (*g_pglSwapInterval)(int);
static int (*g_pglSwapIntervalSGI)(int);
static void (*g_pglSwapIntervalEXT)(Display*, GLXDrawable, int);
typedef Bool (*GLXGETSYNCVALUESOMLPROC)(Display *dpy, GLXDrawable drawable,
int64_t *ust, int64_t *msc, int64_t *sbc);
typedef Bool (*GLXGETMSCRATEOMLPROC)(Display *dpy, GLXDrawable drawable, int32_t *numerator,
int32_t *denominator);
typedef int64_t (*GLXSWAPBUFFERSMSCOMLPROC)(Display *dpy, GLXDrawable drawable,
int64_t target_msc, int64_t divisor,
int64_t remainder);
typedef Bool (*GLXWAITFORMSCOMLPROC)(Display *dpy, GLXDrawable drawable, int64_t target_msc,
int64_t divisor, int64_t remainder, int64_t *ust,
int64_t *msc, int64_t *sbc);
typedef Bool (*GLXWAITFORSBCOMLPROC)(Display *dpy, GLXDrawable drawable, int64_t target_sbc,
int64_t *ust, int64_t *msc, int64_t *sbc);
static GLXGETSYNCVALUESOMLPROC glXGetSyncValuesOML;
static GLXGETMSCRATEOMLPROC glXGetMscRateOML;
static GLXSWAPBUFFERSMSCOMLPROC glXSwapBuffersMscOML;
static GLXWAITFORMSCOMLPROC glXWaitForMscOML;
static GLXWAITFORSBCOMLPROC glXWaitForSbcOML;
#endif
typedef struct gfx_ctx_x_data
{
int64_t ust;
int64_t msc;
int64_t sbc;
int divisor;
int remainder;
bool g_use_hw_ctx;
bool g_core_es;
bool g_core_es_core;
bool g_debug;
bool g_should_reset_mode;
bool g_is_double;
bool core_hw_context_enable;
#ifdef HAVE_OPENGL
GLXWindow g_glx_win;
GLXContext g_ctx, g_hw_ctx;
GLXFBConfig g_fbc;
unsigned swap_mode;
#endif
unsigned g_interval;
#ifdef HAVE_VULKAN
gfx_ctx_vulkan_data_t vk;
#endif
} gfx_ctx_x_data_t;
static bool x_enable_msaa = false;
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;
#ifdef HAVE_OPENGL
static PFNGLXCREATECONTEXTATTRIBSARBPROC glx_create_context_attribs;
static int GLXExtensionSupported(Display *dpy, const char *extension)
{
const char *extensionsString = glXQueryExtensionsString(dpy, DefaultScreen(dpy));
const char *client_extensions = glXGetClientString(dpy, GLX_EXTENSIONS);
const char *pos = strstr(extensionsString, extension);
if ( (pos != NULL) &&
(pos == extensionsString || pos[-1] == ' ') &&
(pos[strlen(extension)] == ' ' || pos[strlen(extension)] == '\0')
)
return 1;
pos = strstr(client_extensions, extension);
if (
(pos != NULL) &&
(pos == extensionsString || pos[-1] == ' ') &&
(pos[strlen(extension)] == ' ' || pos[strlen(extension)] == '\0')
)
return 1;
return 0;
}
#endif
static int x_nul_handler(Display *dpy, XErrorEvent *event)
{
(void)dpy;
(void)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:
#ifdef HAVE_OPENGL
if (x->g_ctx)
{
if (x->swap_mode)
glXSwapBuffersMscOML(g_x11_dpy, x->g_glx_win, 0, x->divisor, x->remainder);
else
glXSwapBuffers(g_x11_dpy, x->g_glx_win);
glFinish();
glXMakeContextCurrent(g_x11_dpy, None, None, NULL);
if (!video_driver_is_video_cache_context())
{
if (x->g_hw_ctx)
glXDestroyContext(g_x11_dpy, x->g_hw_ctx);
if (x->g_ctx)
glXDestroyContext(g_x11_dpy, x->g_ctx);
x->g_ctx = NULL;
x->g_hw_ctx = NULL;
}
}
if (g_x11_win)
{
if (x->g_glx_win)
glXDestroyWindow(g_x11_dpy, x->g_glx_win);
x->g_glx_win = 0;
}
#endif
break;
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
vulkan_context_destroy(&x->vk, g_x11_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();
if (g_x11_dpy)
{
if (x->g_should_reset_mode)
{
x11_exit_fullscreen(g_x11_dpy);
x->g_should_reset_mode = false;
}
if (!video_driver_is_video_cache_context())
{
XCloseDisplay(g_x11_dpy);
g_x11_dpy = NULL;
}
}
#ifdef HAVE_OPENGL
g_pglSwapInterval = NULL;
g_pglSwapIntervalSGI = NULL;
g_pglSwapIntervalEXT = NULL;
#endif
g_major = 0;
g_minor = 0;
x->g_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);
switch (x_api)
{
case GFX_CTX_VULKAN_API:
#if defined(HAVE_VULKAN) && defined(HAVE_THREADS)
if (x->vk.context.queue_lock)
slock_free(x->vk.context.queue_lock);
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
free(data);
}
static void gfx_ctx_x_swap_interval(void *data, unsigned interval)
{
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:
#ifdef HAVE_OPENGL
x->g_interval = interval;
if (g_pglSwapIntervalEXT)
{
RARCH_LOG("[GLX]: glXSwapIntervalEXT(%u)\n", x->g_interval);
g_pglSwapIntervalEXT(g_x11_dpy, x->g_glx_win, x->g_interval);
}
else if (g_pglSwapInterval)
{
RARCH_LOG("[GLX]: glXSwapInterval(%u)\n", x->g_interval);
if (g_pglSwapInterval(x->g_interval) != 0)
RARCH_WARN("[GLX]: glXSwapInterval() failed.\n");
}
else if (g_pglSwapIntervalSGI)
{
RARCH_LOG("[GLX]: glXSwapIntervalSGI(%u)\n", x->g_interval);
if (g_pglSwapIntervalSGI(x->g_interval) != 0)
RARCH_WARN("[GLX]: glXSwapIntervalSGI() failed.\n");
}
#endif
break;
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
if (x->g_interval != interval)
{
x->g_interval = interval;
if (x->vk.swapchain)
x->vk.need_new_swapchain = true;
}
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
}
static void gfx_ctx_x_swap_buffers(void *data, video_frame_info_t *video_info)
{
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 defined(HAVE_OPENGL)
if (x->swap_mode)
{
if (x->g_interval)
{
glXWaitForMscOML(g_x11_dpy, x->g_glx_win, x->msc + x->g_interval,
0, 0, &x->ust, &x->msc, &x->sbc);
glXSwapBuffersMscOML(g_x11_dpy, x->g_glx_win, 0, 0, 0);
}
else
glXSwapBuffersMscOML(g_x11_dpy, x->g_glx_win, 0, x->divisor, x->remainder);
#if 0
RARCH_LOG("UST: %d, MSC: %d, SBC: %d\n", x->ust, x->msc, x->sbc);
#endif
}
else
{
if (x->g_is_double)
glXSwapBuffers(g_x11_dpy, x->g_glx_win);
}
#endif
break;
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
vulkan_present(&x->vk, x->vk.context.current_swapchain_index);
vulkan_acquire_next_image(&x->vk);
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
}
static void gfx_ctx_x_check_window(void *data, bool *quit,
bool *resize, unsigned *width, unsigned *height,
bool is_shutdown)
{
x11_check_window(data, quit, resize, width, height,
is_shutdown);
switch (x_api)
{
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
{
gfx_ctx_x_data_t *x = (gfx_ctx_x_data_t*)data;
if (x->vk.need_new_swapchain)
*resize = true;
}
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
}
static bool gfx_ctx_x_set_resize(void *data,
unsigned width, unsigned height)
{
(void)data;
(void)width;
(void)height;
switch (x_api)
{
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
{
gfx_ctx_x_data_t *x = (gfx_ctx_x_data_t*)data;
/* FIXME/TODO - threading error here */
if (!vulkan_create_swapchain(&x->vk, width, height, x->g_interval))
{
RARCH_ERR("[X/Vulkan]: Failed to update swapchain.\n");
return false;
}
x->vk.context.invalid_swapchain = true;
x->vk.need_new_swapchain = false;
}
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
return false;
}
static void *gfx_ctx_x_init(video_frame_info_t *video_info, void *data)
{
int nelements = 0;
int major = 0;
int minor = 0;
#ifdef HAVE_OPENGL
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_OPENGLES)
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->g_debug = true;
#else
x->g_debug = hwr->debug_context;
#endif
/* Have to use ContextAttribs */
#ifdef HAVE_OPENGLES2
x->g_core_es = true;
x->g_core_es_core = true;
#else
x->g_core_es = (g_major * 1000 + g_minor) >= 3001;
x->g_core_es_core = (g_major * 1000 + g_minor) >= 3002;
#endif
if ((x->g_core_es || x->g_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->g_fbc = fbcs[0];
XFree(fbcs);
#endif
break;
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
/* Use XCB WSI since it's the most supported WSI over legacy Xlib. */
if (!vulkan_context_init(&x->vk, VULKAN_WSI_XCB))
goto error;
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
switch (x_api)
{
case GFX_CTX_OPENGL_API:
#ifdef HAVE_OPENGL
if (GLXExtensionSupported(g_x11_dpy, "GLX_OML_sync_control") &&
GLXExtensionSupported(g_x11_dpy, "GLX_MESA_swap_control")
)
{
RARCH_LOG("[GLX]: GLX_OML_sync_control and GLX_MESA_swap_control supported, using better swap control method...\n");
x->swap_mode = 1;
glXGetSyncValuesOML = (GLXGETSYNCVALUESOMLPROC)glXGetProcAddress((unsigned char *)"glXGetSyncValuesOML");
glXGetMscRateOML = (GLXGETMSCRATEOMLPROC)glXGetProcAddress((unsigned char *)"glXGetMscRateOML");
glXSwapBuffersMscOML = (GLXSWAPBUFFERSMSCOMLPROC)glXGetProcAddress((unsigned char *)"glXSwapBuffersMscOML");
glXWaitForMscOML = (GLXWAITFORMSCOMLPROC)glXGetProcAddress((unsigned char *)"glXWaitForMscOML");
glXWaitForSbcOML = (GLXWAITFORSBCOMLPROC)glXGetProcAddress((unsigned char *)"glXWaitForSbcOML");
glXGetSyncValuesOML(g_x11_dpy, g_x11_win, &x->ust, &x->msc, &x->sbc);
#if 0
RARCH_LOG("[GLX]: UST: %d, MSC: %d, SBC: %d\n", x->ust, x->msc, x->sbc);
#endif
}
#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,
video_frame_info_t *video_info,
unsigned width, unsigned height,
bool fullscreen)
{
XEvent event;
bool true_full = false;
bool windowed_full = false;
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;
frontend_driver_install_signal_handler();
if (!x)
return false;
windowed_full = video_info->windowed_fullscreen;
true_full = false;
switch (x_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
#ifdef HAVE_OPENGL
vi = glXGetVisualFromFBConfig(g_x11_dpy, x->g_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 = fullscreen ? True : False;
if (fullscreen && !windowed_full)
{
if (x11_enter_fullscreen(video_info, g_x11_dpy, width, height))
{
x->g_should_reset_mode = true;
true_full = true;
}
else
RARCH_ERR("[GLX]: Entering true fullscreen failed. Will attempt windowed mode.\n");
}
if (video_info->monitor_index)
g_x11_screen = video_info->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 |
(true_full ? CWOverrideRedirect : 0), &swa);
XSetWindowBackground(g_x11_dpy, g_x11_win, 0);
switch (x_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
#ifdef HAVE_OPENGL
x->g_glx_win = glXCreateWindow(g_x11_dpy, x->g_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, video_info);
if (fullscreen)
x11_show_mouse(g_x11_dpy, g_x11_win, false);
if (true_full)
{
RARCH_LOG("[GLX]: Using true fullscreen.\n");
XMapRaised(g_x11_dpy, g_x11_win);
}
else 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_windowed_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:
#ifdef HAVE_OPENGL
if (!x->g_ctx)
{
if (x->g_core_es || x->g_debug)
{
int attribs[16];
int *aptr = attribs;
if (x->g_core_es)
{
*aptr++ = GLX_CONTEXT_MAJOR_VERSION_ARB;
*aptr++ = g_major;
*aptr++ = GLX_CONTEXT_MINOR_VERSION_ARB;
*aptr++ = g_minor;
if (x->g_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->g_debug)
{
*aptr++ = GLX_CONTEXT_FLAGS_ARB;
*aptr++ = GLX_CONTEXT_DEBUG_BIT_ARB;
}
*aptr = None;
x->g_ctx = glx_create_context_attribs(g_x11_dpy,
x->g_fbc, NULL, True, attribs);
if (x->g_use_hw_ctx)
{
RARCH_LOG("[GLX]: Creating shared HW context.\n");
x->g_hw_ctx = glx_create_context_attribs(g_x11_dpy,
x->g_fbc, x->g_ctx, True, attribs);
if (!x->g_hw_ctx)
RARCH_ERR("[GLX]: Failed to create new shared context.\n");
}
}
else
{
x->g_ctx = glXCreateNewContext(g_x11_dpy, x->g_fbc,
GLX_RGBA_TYPE, 0, True);
if (x->g_use_hw_ctx)
{
x->g_hw_ctx = glXCreateNewContext(g_x11_dpy, x->g_fbc,
GLX_RGBA_TYPE, x->g_ctx, True);
if (!x->g_hw_ctx)
RARCH_ERR("[GLX]: Failed to create new shared context.\n");
}
}
if (!x->g_ctx)
{
RARCH_ERR("[GLX]: Failed to create new context.\n");
goto error;
}
}
else
{
video_driver_set_video_cache_context_ack();
RARCH_LOG("[GLX]: Using cached GL context.\n");
}
glXMakeContextCurrent(g_x11_dpy,
x->g_glx_win, x->g_glx_win, x->g_ctx);
#endif
break;
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
{
bool quit, resize;
bool shutdown = false;
unsigned width = 0, height = 0;
x11_check_window(x, &quit, &resize, &width, &height,
shutdown);
/* FIXME/TODO - threading error here */
/* Use XCB surface since it's the most supported WSI.
* We can obtain the XCB connection directly from X11. */
if (!vulkan_surface_create(&x->vk, VULKAN_WSI_XCB,
g_x11_dpy, &g_x11_win,
width, height, x->g_interval))
goto error;
}
#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:
#ifdef HAVE_OPENGL
glXGetConfig(g_x11_dpy, vi, GLX_DOUBLEBUFFER, &val);
x->g_is_double = val;
if (x->g_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->g_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;
if (!x11_input_ctx_new(true_full))
goto error;
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,
const input_driver_t **input, void **input_data)
{
void *xinput = input_x.init(joypad_name);
*input = xinput ? &input_x : NULL;
*input_data = xinput;
}
static bool gfx_ctx_x_suppress_screensaver(void *data, bool enable)
{
(void)data;
if (video_driver_display_type_get() != RARCH_DISPLAY_X11)
return false;
x11_suspend_screensaver(video_driver_window_get(), enable);
return true;
}
static bool gfx_ctx_x_has_windowed(void *data)
{
(void)data;
return true;
}
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:
#ifdef HAVE_OPENGL
return glXGetProcAddress((const GLubyte*)symbol);
#else
break;
#endif
case GFX_CTX_NONE:
default:
break;
}
return NULL;
}
static bool gfx_ctx_x_bind_api(void *data, enum gfx_ctx_api api,
unsigned major, unsigned minor)
{
(void)data;
g_major = major;
g_minor = minor;
x_api = api;
switch (api)
{
case GFX_CTX_OPENGL_API:
#ifdef HAVE_OPENGL
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_VULKAN_API:
#ifdef HAVE_VULKAN
return true;
#else
break;
#endif
case GFX_CTX_NONE:
default:
break;
}
return false;
}
static void gfx_ctx_x_show_mouse(void *data, bool state)
{
x11_show_mouse(g_x11_dpy, g_x11_win, state);
}
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:
#ifdef HAVE_OPENGL
x->g_use_hw_ctx = enable;
if (!g_x11_dpy || !x->g_glx_win)
return;
glXMakeContextCurrent(g_x11_dpy, x->g_glx_win,
x->g_glx_win, enable ? x->g_hw_ctx : x->g_ctx);
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
}
#ifdef HAVE_VULKAN
static void *gfx_ctx_x_get_context_data(void *data)
{
gfx_ctx_x_data_t *x = (gfx_ctx_x_data_t*)data;
return &x->vk.context;
}
#endif
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;
if (x->core_hw_context_enable || x->g_core_es)
{
BIT32_SET(flags, GFX_CTX_FLAGS_GL_CORE_CONTEXT);
}
else
{
BIT32_SET(flags, GFX_CTX_FLAGS_NONE);
}
if (x_enable_msaa)
{
BIT32_SET(flags, GFX_CTX_FLAGS_MULTISAMPLING);
}
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;
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_enable_msaa = true;
}
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:
#ifdef HAVE_OPENGL
if (release)
glXMakeContextCurrent(g_x11_dpy, None, None, NULL);
else
glXMakeContextCurrent(g_x11_dpy,
current_context_data->g_glx_win,
current_context_data->g_glx_win, current_context_data->g_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_bind_api,
gfx_ctx_x_swap_interval,
gfx_ctx_x_set_video_mode,
x11_get_video_size,
NULL, /* get_video_output_size */
NULL, /* get_video_output_prev */
NULL, /* get_video_output_next */
x11_get_metrics,
NULL,
x11_update_title,
gfx_ctx_x_check_window,
gfx_ctx_x_set_resize,
x11_has_focus,
gfx_ctx_x_suppress_screensaver,
gfx_ctx_x_has_windowed,
gfx_ctx_x_swap_buffers,
gfx_ctx_x_input_driver,
gfx_ctx_x_get_proc_address,
NULL,
NULL,
gfx_ctx_x_show_mouse,
"x",
gfx_ctx_x_get_flags,
gfx_ctx_x_set_flags,
gfx_ctx_x_bind_hw_render,
#ifdef HAVE_VULKAN
gfx_ctx_x_get_context_data,
#else
NULL,
#endif
gfx_ctx_x_make_current
};
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