mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-24 16:39:43 +00:00
538 lines
13 KiB
C
538 lines
13 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2012 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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// X/EGL context. Mostly used for testing GLES code paths.
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// Should be its own file as it has lots of X11 stuff baked into it as well.
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#include "../../driver.h"
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#include "../gfx_context.h"
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#include "../gl_common.h"
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#include "../gfx_common.h"
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#include "x11_common.h"
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#include <signal.h>
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#include <stdint.h>
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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static Display *g_dpy;
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static Window g_win;
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static Colormap g_cmap;
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static Atom g_quit_atom;
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static bool g_has_focus;
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static bool g_true_full;
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static unsigned g_screen;
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static EGLContext g_egl_ctx;
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static EGLSurface g_egl_surf;
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static EGLDisplay g_egl_dpy;
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static EGLConfig g_config;
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static XF86VidModeModeInfo g_desktop_mode;
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static bool g_should_reset_mode;
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static volatile sig_atomic_t g_quit;
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static bool g_inited;
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static unsigned g_interval;
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static enum gfx_ctx_api g_api;
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static void sighandler(int sig)
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{
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(void)sig;
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g_quit = 1;
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}
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static Bool egl_wait_notify(Display *d, XEvent *e, char *arg)
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{
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(void)d;
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(void)e;
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return e->type == MapNotify && e->xmap.window == g_win;
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}
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static void gfx_ctx_get_video_size(unsigned *width, unsigned *height);
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static void gfx_ctx_destroy(void);
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static void gfx_ctx_swap_interval(unsigned interval)
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{
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g_interval = interval;
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if (g_egl_dpy)
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{
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RARCH_LOG("[X/EGL]: eglSwapInterval(%u)\n", g_interval);
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if (!eglSwapInterval(g_egl_dpy, g_interval))
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RARCH_ERR("[X/EGL]: eglSwapInterval() failed.\n");
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}
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}
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static void gfx_ctx_check_window(bool *quit,
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bool *resize, unsigned *width, unsigned *height, unsigned frame_count)
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{
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(void)frame_count;
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unsigned new_width = *width, new_height = *height;
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gfx_ctx_get_video_size(&new_width, &new_height);
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if (new_width != *width || new_height != *height)
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{
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*resize = true;
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*width = new_width;
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*height = new_height;
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}
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XEvent event;
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while (XPending(g_dpy))
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{
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XNextEvent(g_dpy, &event);
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switch (event.type)
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{
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case ClientMessage:
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if ((Atom)event.xclient.data.l[0] == g_quit_atom)
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g_quit = true;
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break;
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case DestroyNotify:
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g_quit = true;
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break;
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case MapNotify:
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g_has_focus = true;
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break;
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case UnmapNotify:
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g_has_focus = false;
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break;
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}
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}
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*quit = g_quit;
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}
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static void gfx_ctx_swap_buffers(void)
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{
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eglSwapBuffers(g_egl_dpy, g_egl_surf);
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}
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static void gfx_ctx_set_resize(unsigned width, unsigned height)
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{
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(void)width;
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(void)height;
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}
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static void gfx_ctx_update_window_title(bool reset)
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{
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if (reset)
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gfx_window_title_reset();
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char buf[128];
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if (gfx_window_title(buf, sizeof(buf)))
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XStoreName(g_dpy, g_win, buf);
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}
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static void gfx_ctx_get_video_size(unsigned *width, unsigned *height)
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{
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if (!g_dpy || g_win == None)
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{
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Display *dpy = XOpenDisplay(NULL);
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if (dpy)
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{
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int screen = DefaultScreen(dpy);
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*width = DisplayWidth(dpy, screen);
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*height = DisplayHeight(dpy, screen);
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XCloseDisplay(dpy);
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}
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else
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{
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*width = 0;
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*height = 0;
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}
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}
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else
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{
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XWindowAttributes target;
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XGetWindowAttributes(g_dpy, g_win, &target);
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*width = target.width;
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*height = target.height;
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}
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}
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static bool gfx_ctx_init(void)
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{
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if (g_inited)
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return false;
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#define EGL_ATTRIBS_BASE \
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EGL_SURFACE_TYPE, EGL_WINDOW_BIT, \
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EGL_RED_SIZE, 8, \
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EGL_GREEN_SIZE, 8, \
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EGL_BLUE_SIZE, 8, \
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EGL_DEPTH_SIZE, 0, \
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EGL_STENCIL_SIZE, 0
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static const EGLint egl_attribs_gl[] = {
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EGL_ATTRIBS_BASE,
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EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
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EGL_NONE,
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};
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static const EGLint egl_attribs_gles[] = {
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EGL_ATTRIBS_BASE,
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EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
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EGL_NONE,
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};
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static const EGLint egl_attribs_vg[] = {
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EGL_ATTRIBS_BASE,
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EGL_RENDERABLE_TYPE, EGL_OPENVG_BIT,
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EGL_NONE,
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};
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const EGLint *attrib_ptr;
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switch (g_api)
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{
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case GFX_CTX_OPENGL_API:
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attrib_ptr = egl_attribs_gl;
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break;
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case GFX_CTX_OPENGL_ES_API:
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attrib_ptr = egl_attribs_gles;
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break;
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case GFX_CTX_OPENVG_API:
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attrib_ptr = egl_attribs_vg;
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break;
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default:
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attrib_ptr = NULL;
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}
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g_quit = 0;
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g_dpy = XOpenDisplay(NULL);
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if (!g_dpy)
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goto error;
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g_egl_dpy = eglGetDisplay(g_dpy);
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if (!g_egl_dpy)
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goto error;
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EGLint egl_major, egl_minor;
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if (!eglInitialize(g_egl_dpy, &egl_major, &egl_minor))
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goto error;
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RARCH_LOG("[X/EGL]: EGL version: %d.%d\n", egl_major, egl_minor);
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EGLint num_configs;
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if (!eglChooseConfig(g_egl_dpy, attrib_ptr, &g_config, 1, &num_configs)
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|| num_configs == 0 || !g_config)
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goto error;
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return true;
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error:
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gfx_ctx_destroy();
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return false;
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}
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static bool gfx_ctx_set_video_mode(
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unsigned width, unsigned height,
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unsigned bits, bool fullscreen)
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{
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(void)bits;
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struct sigaction sa = {{0}};
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sa.sa_handler = sighandler;
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sa.sa_flags = SA_RESTART;
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sigemptyset(&sa.sa_mask);
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sigaction(SIGINT, &sa, NULL);
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sigaction(SIGTERM, &sa, NULL);
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XVisualInfo temp = {0};
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XSetWindowAttributes swa = {0};
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XVisualInfo *vi = NULL;
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bool windowed_full = g_settings.video.windowed_fullscreen;
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bool true_full = false;
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int x_off = 0;
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int y_off = 0;
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EGLint vid;
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if (!eglGetConfigAttrib(g_egl_dpy, g_config, EGL_NATIVE_VISUAL_ID, &vid))
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goto error;
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temp.visualid = vid;
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EGLint num_visuals;
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vi = XGetVisualInfo(g_dpy, VisualIDMask, &temp, &num_visuals);
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if (!vi)
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goto error;
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swa.colormap = g_cmap = XCreateColormap(g_dpy, RootWindow(g_dpy, vi->screen),
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vi->visual, AllocNone);
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swa.event_mask = StructureNotifyMask;
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swa.override_redirect = fullscreen ? True : False;
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if (fullscreen && !windowed_full)
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{
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if (x11_enter_fullscreen(g_dpy, width, height, &g_desktop_mode))
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{
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g_should_reset_mode = true;
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true_full = true;
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}
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else
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RARCH_ERR("[X/EGL]: Entering true fullscreen failed. Will attempt windowed mode.\n");
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}
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if (g_settings.video.monitor_index)
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g_screen = g_settings.video.monitor_index - 1;
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#ifdef HAVE_XINERAMA
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if (fullscreen || g_screen != 0)
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{
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unsigned new_width = width;
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unsigned new_height = height;
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if (x11_get_xinerama_coord(g_dpy, g_screen, &x_off, &y_off, &new_width, &new_height))
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RARCH_LOG("[X/EGL]: Using Xinerama on screen #%u.\n", g_screen);
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else
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RARCH_LOG("[X/EGL]: Xinerama is not active on screen.\n");
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if (fullscreen)
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{
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width = new_width;
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height = new_height;
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}
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}
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#endif
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RARCH_LOG("[X/EGL]: X = %d, Y = %d, W = %u, H = %u.\n",
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x_off, y_off, width, height);
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g_win = XCreateWindow(g_dpy, RootWindow(g_dpy, vi->screen),
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x_off, y_off, width, height, 0,
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vi->depth, InputOutput, vi->visual,
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CWBorderPixel | CWColormap | CWEventMask | (true_full ? CWOverrideRedirect : 0), &swa);
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XSetWindowBackground(g_dpy, g_win, 0);
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// GLES 2.0. Don't use for any other API.
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static const EGLint egl_ctx_gles_attribs[] = {
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EGL_CONTEXT_CLIENT_VERSION, 2,
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EGL_NONE,
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};
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g_egl_ctx = eglCreateContext(g_egl_dpy, g_config, EGL_NO_CONTEXT,
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(g_api == GFX_CTX_OPENGL_ES_API) ? egl_ctx_gles_attribs : NULL);
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if (!g_egl_ctx)
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goto error;
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g_egl_surf = eglCreateWindowSurface(g_egl_dpy, g_config, g_win, NULL);
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if (!g_egl_surf)
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goto error;
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if (!eglMakeCurrent(g_egl_dpy, g_egl_surf, g_egl_surf, g_egl_ctx))
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goto error;
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gfx_ctx_update_window_title(true);
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x11_set_window_attr(g_dpy, g_win);
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if (fullscreen)
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x11_hide_mouse(g_dpy, g_win);
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if (true_full)
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{
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RARCH_LOG("[GLX]: Using true fullscreen.\n");
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XMapRaised(g_dpy, g_win);
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}
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else if (fullscreen) // We attempted true fullscreen, but failed. Attempt using windowed fullscreen.
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{
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XMapRaised(g_dpy, g_win);
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RARCH_LOG("[X/EGL]: Using windowed fullscreen.\n");
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// We have to move the window to the screen we want to go fullscreen on first.
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// x_off and y_off usually get ignored in XCreateWindow().
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x11_move_window(g_dpy, g_win, x_off, y_off, width, height);
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x11_windowed_fullscreen(g_dpy, g_win);
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}
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else
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{
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XMapWindow(g_dpy, g_win);
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// If we want to map the window on a different screen, we'll have to do it by force.
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// Otherwise, we should try to let the window manager sort it out.
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// x_off and y_off usually get ignored in XCreateWindow().
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if (g_screen)
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x11_move_window(g_dpy, g_win, x_off, y_off, width, height);
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}
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XEvent event;
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XIfEvent(g_dpy, &event, egl_wait_notify, NULL);
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XSetInputFocus(g_dpy, g_win, RevertToNone, CurrentTime);
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g_quit_atom = XInternAtom(g_dpy, "WM_DELETE_WINDOW", False);
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if (g_quit_atom)
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XSetWMProtocols(g_dpy, g_win, &g_quit_atom, 1);
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gfx_ctx_swap_interval(g_interval);
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XFree(vi);
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g_has_focus = true;
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g_inited = true;
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driver.display_type = RARCH_DISPLAY_X11;
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driver.video_display = (uintptr_t)g_dpy;
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driver.video_window = (uintptr_t)g_win;
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g_true_full = true_full;
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return true;
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error:
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if (vi)
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XFree(vi);
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gfx_ctx_destroy();
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return false;
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}
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static void gfx_ctx_destroy(void)
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{
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if (g_egl_dpy)
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{
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if (g_egl_ctx)
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{
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eglMakeCurrent(g_egl_dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
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eglDestroyContext(g_egl_dpy, g_egl_ctx);
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}
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if (g_egl_surf)
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eglDestroySurface(g_egl_dpy, g_egl_surf);
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eglTerminate(g_egl_dpy);
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}
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g_egl_ctx = NULL;
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g_egl_surf = NULL;
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g_egl_dpy = NULL;
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g_config = 0;
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if (g_win)
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{
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// Save last used monitor for later.
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#ifdef HAVE_XINERAMA
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XWindowAttributes target;
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Window child;
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int x = 0, y = 0;
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XGetWindowAttributes(g_dpy, g_win, &target);
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XTranslateCoordinates(g_dpy, g_win, RootWindow(g_dpy, DefaultScreen(g_dpy)),
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target.x, target.y, &x, &y, &child);
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g_screen = x11_get_xinerama_monitor(g_dpy, x, y,
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target.width, target.height);
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RARCH_LOG("[GLX]: Saved monitor #%u.\n", g_screen);
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#endif
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XUnmapWindow(g_dpy, g_win);
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XDestroyWindow(g_dpy, g_win);
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g_win = None;
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}
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if (g_cmap)
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{
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XFreeColormap(g_dpy, g_cmap);
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g_cmap = None;
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}
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if (g_should_reset_mode)
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{
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x11_exit_fullscreen(g_dpy, &g_desktop_mode);
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g_should_reset_mode = false;
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}
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if (g_dpy)
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{
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XCloseDisplay(g_dpy);
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g_dpy = NULL;
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}
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g_inited = false;
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}
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static void gfx_ctx_input_driver(const input_driver_t **input, void **input_data)
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{
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void *xinput = input_x.init();
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*input = xinput ? &input_x : NULL;
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*input_data = xinput;
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}
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static bool gfx_ctx_has_focus(void)
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{
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if (!g_inited)
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return false;
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Window win;
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int rev;
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XGetInputFocus(g_dpy, &win, &rev);
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return (win == g_win && g_has_focus) || g_true_full;
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}
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static gfx_ctx_proc_t gfx_ctx_get_proc_address(const char *symbol)
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{
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return eglGetProcAddress(symbol);
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}
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static bool gfx_ctx_bind_api(enum gfx_ctx_api api)
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{
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g_api = api;
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switch (api)
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{
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case GFX_CTX_OPENGL_API:
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return eglBindAPI(EGL_OPENGL_API);
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case GFX_CTX_OPENGL_ES_API:
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return eglBindAPI(EGL_OPENGL_ES_API);
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case GFX_CTX_OPENVG_API:
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return eglBindAPI(EGL_OPENVG_API);
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default:
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return false;
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}
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}
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static bool gfx_ctx_init_egl_image_buffer(const video_info_t *video)
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{
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return false;
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}
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static bool gfx_ctx_write_egl_image(const void *frame, unsigned width, unsigned height, unsigned pitch, bool rgb32, unsigned index, void **image_handle)
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{
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return false;
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}
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const gfx_ctx_driver_t gfx_ctx_x_egl = {
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gfx_ctx_init,
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gfx_ctx_destroy,
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gfx_ctx_bind_api,
|
|
gfx_ctx_swap_interval,
|
|
gfx_ctx_set_video_mode,
|
|
gfx_ctx_get_video_size,
|
|
NULL,
|
|
gfx_ctx_update_window_title,
|
|
gfx_ctx_check_window,
|
|
gfx_ctx_set_resize,
|
|
gfx_ctx_has_focus,
|
|
gfx_ctx_swap_buffers,
|
|
gfx_ctx_input_driver,
|
|
gfx_ctx_get_proc_address,
|
|
gfx_ctx_init_egl_image_buffer,
|
|
gfx_ctx_write_egl_image,
|
|
"x-egl",
|
|
};
|
|
|