mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-03 22:03:04 +00:00
599 lines
16 KiB
C
599 lines
16 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2015 - 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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#include <stdint.h>
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#include <signal.h>
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#include <GL/glx.h>
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#include "../../driver.h"
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#include "../common/gl_common.h"
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#include "../common/x11_common.h"
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static int (*g_pglSwapInterval)(int);
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static int (*g_pglSwapIntervalSGI)(int);
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static void (*g_pglSwapIntervalEXT)(Display*, GLXDrawable, int);
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typedef struct gfx_ctx_glx_data
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{
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bool g_use_hw_ctx;
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bool g_core_es;
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bool g_core_es_core;
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bool g_debug;
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bool g_should_reset_mode;
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bool g_is_double;
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GLXWindow g_glx_win;
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unsigned g_interval;
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GLXContext g_ctx, g_hw_ctx;
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GLXFBConfig g_fbc;
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XF86VidModeModeInfo g_desktop_mode;
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} gfx_ctx_glx_data_t;
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static unsigned g_major;
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static unsigned g_minor;
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static PFNGLXCREATECONTEXTATTRIBSARBPROC glx_create_context_attribs;
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static int glx_nul_handler(Display *dpy, XErrorEvent *event)
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{
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(void)dpy;
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(void)event;
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return 0;
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}
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static void ctx_glx_destroy_resources(gfx_ctx_glx_data_t *glx)
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{
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if (!glx)
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return;
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x11_input_ctx_destroy();
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if (g_x11_dpy && glx->g_ctx)
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{
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glFinish();
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glXMakeContextCurrent(g_x11_dpy, None, None, NULL);
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if (!video_driver_ctl(RARCH_DISPLAY_CTL_IS_VIDEO_CACHE_CONTEXT, NULL))
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{
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if (glx->g_hw_ctx)
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glXDestroyContext(g_x11_dpy, glx->g_hw_ctx);
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glXDestroyContext(g_x11_dpy, glx->g_ctx);
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glx->g_ctx = NULL;
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glx->g_hw_ctx = NULL;
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}
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}
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if (g_x11_win)
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{
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glXDestroyWindow(g_x11_dpy, glx->g_glx_win);
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glx->g_glx_win = 0;
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/* Save last used monitor for later. */
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x11_save_last_used_monitor(DefaultRootWindow(g_x11_dpy));
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x11_window_destroy(false);
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}
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x11_colormap_destroy();
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if (glx->g_should_reset_mode)
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{
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x11_exit_fullscreen(g_x11_dpy, &glx->g_desktop_mode);
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glx->g_should_reset_mode = false;
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}
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if (!video_driver_ctl(RARCH_DISPLAY_CTL_IS_VIDEO_CACHE_CONTEXT, NULL) && g_x11_dpy)
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{
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XCloseDisplay(g_x11_dpy);
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g_x11_dpy = NULL;
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}
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g_pglSwapInterval = NULL;
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g_pglSwapIntervalSGI = NULL;
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g_pglSwapIntervalEXT = NULL;
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g_major = g_minor = 0;
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glx->g_core_es = false;
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}
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static void gfx_ctx_glx_destroy(void *data)
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{
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gfx_ctx_glx_data_t *glx = (gfx_ctx_glx_data_t*)data;
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if (!glx)
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return;
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(void)data;
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ctx_glx_destroy_resources(glx);
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free(data);
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}
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static void gfx_ctx_glx_swap_interval(void *data, unsigned interval)
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{
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gfx_ctx_glx_data_t *glx = (gfx_ctx_glx_data_t*)data;
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glx->g_interval = interval;
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if (g_pglSwapIntervalEXT)
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{
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RARCH_LOG("[GLX]: glXSwapIntervalEXT(%u)\n", glx->g_interval);
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g_pglSwapIntervalEXT(g_x11_dpy, glx->g_glx_win, glx->g_interval);
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}
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else if (g_pglSwapInterval)
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{
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RARCH_LOG("[GLX]: glXSwapInterval(%u)\n", glx->g_interval);
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if (g_pglSwapInterval(glx->g_interval) != 0)
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RARCH_WARN("[GLX]: glXSwapInterval() failed.\n");
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}
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else if (g_pglSwapIntervalSGI)
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{
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RARCH_LOG("[GLX]: glXSwapIntervalSGI(%u)\n", glx->g_interval);
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if (g_pglSwapIntervalSGI(glx->g_interval) != 0)
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RARCH_WARN("[GLX]: glXSwapIntervalSGI() failed.\n");
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}
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}
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static void gfx_ctx_glx_swap_buffers(void *data)
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{
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gfx_ctx_glx_data_t *glx = (gfx_ctx_glx_data_t*)data;
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if (glx->g_is_double)
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glXSwapBuffers(g_x11_dpy, glx->g_glx_win);
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}
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static void gfx_ctx_glx_set_resize(void *data,
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unsigned width, unsigned height)
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{
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(void)data;
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(void)width;
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(void)height;
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}
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static void *gfx_ctx_glx_init(void *data)
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{
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static const int visual_attribs[] = {
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GLX_X_RENDERABLE , True,
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GLX_DRAWABLE_TYPE , GLX_WINDOW_BIT,
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GLX_RENDER_TYPE , GLX_RGBA_BIT,
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GLX_DOUBLEBUFFER , True,
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GLX_RED_SIZE , 8,
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GLX_GREEN_SIZE , 8,
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GLX_BLUE_SIZE , 8,
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GLX_ALPHA_SIZE , 8,
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GLX_DEPTH_SIZE , 0,
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GLX_STENCIL_SIZE , 0,
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None
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};
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int nelements, major, minor;
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GLXFBConfig *fbcs = NULL;
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gfx_ctx_glx_data_t *glx = (gfx_ctx_glx_data_t*)calloc(1, sizeof(gfx_ctx_glx_data_t));
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#ifndef GL_DEBUG
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const struct retro_hw_render_callback *hw_render =
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(const struct retro_hw_render_callback*)video_driver_callback();
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#endif
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if (!glx)
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return NULL;
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XInitThreads();
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if (!x11_connect())
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goto error;
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glXQueryVersion(g_x11_dpy, &major, &minor);
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/* GLX 1.3+ minimum required. */
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if ((major * 1000 + minor) < 1003)
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goto error;
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glx_create_context_attribs = (PFNGLXCREATECONTEXTATTRIBSARBPROC)glXGetProcAddress((const GLubyte*)"glXCreateContextAttribsARB");
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#ifdef GL_DEBUG
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glx->g_debug = true;
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#else
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glx->g_debug = hw_render->debug_context;
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#endif
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/* Have to use ContextAttribs */
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#ifdef HAVE_OPENGLES2
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glx->g_core_es = true;
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glx->g_core_es_core = true;
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#else
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glx->g_core_es = (g_major * 1000 + g_minor) >= 3001;
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glx->g_core_es_core = (g_major * 1000 + g_minor) >= 3002;
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#endif
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if ((glx->g_core_es || glx->g_debug) && !glx_create_context_attribs)
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goto error;
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fbcs = glXChooseFBConfig(g_x11_dpy, DefaultScreen(g_x11_dpy),
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visual_attribs, &nelements);
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if (!fbcs)
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goto error;
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if (!nelements)
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{
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XFree(fbcs);
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goto error;
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}
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glx->g_fbc = fbcs[0];
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XFree(fbcs);
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return glx;
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error:
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ctx_glx_destroy_resources(glx);
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if (glx)
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free(glx);
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g_x11_screen = 0;
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return NULL;
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}
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static bool gfx_ctx_glx_set_video_mode(void *data,
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unsigned width, unsigned height,
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bool fullscreen)
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{
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XEvent event;
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bool true_full = false, windowed_full;
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int val, x_off = 0, y_off = 0;
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XVisualInfo *vi = NULL;
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XSetWindowAttributes swa = {0};
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int (*old_handler)(Display*, XErrorEvent*) = NULL;
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settings_t *settings = config_get_ptr();
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gfx_ctx_glx_data_t *glx = (gfx_ctx_glx_data_t*)data;
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x11_install_sighandlers();
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if (!glx)
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return false;
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windowed_full = settings->video.windowed_fullscreen;
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true_full = false;
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vi = glXGetVisualFromFBConfig(g_x11_dpy, glx->g_fbc);
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if (!vi)
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goto error;
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swa.colormap = g_x11_cmap = XCreateColormap(g_x11_dpy,
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RootWindow(g_x11_dpy, vi->screen), vi->visual, AllocNone);
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swa.event_mask = StructureNotifyMask | KeyPressMask | KeyReleaseMask |
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ButtonReleaseMask | ButtonPressMask;
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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_x11_dpy, width, height, &glx->g_desktop_mode))
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{
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glx->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("[GLX]: Entering true fullscreen failed. Will attempt windowed mode.\n");
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}
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if (settings->video.monitor_index)
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g_x11_screen = settings->video.monitor_index - 1;
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#ifdef HAVE_XINERAMA
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if (fullscreen || g_x11_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_x11_dpy, g_x11_screen,
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&x_off, &y_off, &new_width, &new_height))
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RARCH_LOG("[GLX]: Using Xinerama on screen #%u.\n", g_x11_screen);
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else
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RARCH_LOG("[GLX]: 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("[GLX]: X = %d, Y = %d, W = %u, H = %u.\n",
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x_off, y_off, width, height);
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g_x11_win = XCreateWindow(g_x11_dpy, RootWindow(g_x11_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_x11_dpy, g_x11_win, 0);
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glx->g_glx_win = glXCreateWindow(g_x11_dpy, glx->g_fbc, g_x11_win, 0);
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x11_set_window_attr(g_x11_dpy, g_x11_win);
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if (fullscreen)
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x11_show_mouse(g_x11_dpy, g_x11_win, false);
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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_x11_dpy, g_x11_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_x11_dpy, g_x11_win);
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RARCH_LOG("[GLX]: 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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*/
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x11_move_window(g_x11_dpy, g_x11_win, x_off, y_off, width, height);
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x11_windowed_fullscreen(g_x11_dpy, g_x11_win);
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}
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else
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{
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XMapWindow(g_x11_dpy, g_x11_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_x11_screen)
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x11_move_window(g_x11_dpy, g_x11_win, x_off, y_off, width, height);
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}
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x11_event_queue_check(&event);
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if (!glx->g_ctx)
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{
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if (glx->g_core_es || glx->g_debug)
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{
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int attribs[16];
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int *aptr = attribs;
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if (glx->g_core_es)
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{
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*aptr++ = GLX_CONTEXT_MAJOR_VERSION_ARB;
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*aptr++ = g_major;
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*aptr++ = GLX_CONTEXT_MINOR_VERSION_ARB;
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*aptr++ = g_minor;
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if (glx->g_core_es_core)
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{
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/* Technically, we don't have core/compat until 3.2.
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* Version 3.1 is either compat or not depending on GL_ARB_compatibility.
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*/
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*aptr++ = GLX_CONTEXT_PROFILE_MASK_ARB;
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#ifdef HAVE_OPENGLES2
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*aptr++ = GLX_CONTEXT_ES_PROFILE_BIT_EXT;
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#else
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*aptr++ = GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
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#endif
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}
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}
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if (glx->g_debug)
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{
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*aptr++ = GLX_CONTEXT_FLAGS_ARB;
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*aptr++ = GLX_CONTEXT_DEBUG_BIT_ARB;
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}
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*aptr = None;
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glx->g_ctx = glx_create_context_attribs(g_x11_dpy, glx->g_fbc, NULL, True, attribs);
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if (glx->g_use_hw_ctx)
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{
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RARCH_LOG("[GLX]: Creating shared HW context.\n");
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glx->g_hw_ctx = glx_create_context_attribs(g_x11_dpy, glx->g_fbc, glx->g_ctx, True, attribs);
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if (!glx->g_hw_ctx)
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RARCH_ERR("[GLX]: Failed to create new shared context.\n");
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}
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}
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else
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{
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glx->g_ctx = glXCreateNewContext(g_x11_dpy, glx->g_fbc, GLX_RGBA_TYPE, 0, True);
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if (glx->g_use_hw_ctx)
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{
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glx->g_hw_ctx = glXCreateNewContext(g_x11_dpy, glx->g_fbc, GLX_RGBA_TYPE, glx->g_ctx, True);
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if (!glx->g_hw_ctx)
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RARCH_ERR("[GLX]: Failed to create new shared context.\n");
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}
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}
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if (!glx->g_ctx)
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{
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RARCH_ERR("[GLX]: Failed to create new context.\n");
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goto error;
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}
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}
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else
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{
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video_driver_ctl(RARCH_DISPLAY_CTL_SET_VIDEO_CACHE_CONTEXT_ACK, NULL);
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RARCH_LOG("[GLX]: Using cached GL context.\n");
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}
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glXMakeContextCurrent(g_x11_dpy, glx->g_glx_win, glx->g_glx_win, glx->g_ctx);
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XSync(g_x11_dpy, False);
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x11_install_quit_atom();
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glXGetConfig(g_x11_dpy, vi, GLX_DOUBLEBUFFER, &val);
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glx->g_is_double = val;
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if (glx->g_is_double)
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{
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const char *swap_func = NULL;
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g_pglSwapIntervalEXT = (void (*)(Display*, GLXDrawable, int))glXGetProcAddress((const GLubyte*)"glXSwapIntervalEXT");
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g_pglSwapIntervalSGI = (int (*)(int))glXGetProcAddress((const GLubyte*)"glXSwapIntervalSGI");
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g_pglSwapInterval = (int (*)(int))glXGetProcAddress((const GLubyte*)"glXSwapIntervalMESA");
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if (g_pglSwapIntervalEXT)
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swap_func = "glXSwapIntervalEXT";
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else if (g_pglSwapInterval)
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swap_func = "glXSwapIntervalMESA";
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else if (g_pglSwapIntervalSGI)
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swap_func = "glXSwapIntervalSGI";
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if (!g_pglSwapInterval && !g_pglSwapIntervalEXT && !g_pglSwapIntervalSGI)
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RARCH_WARN("[GLX]: Cannot find swap interval call.\n");
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else
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RARCH_LOG("[GLX]: Found swap function: %s.\n", swap_func);
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}
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else
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RARCH_WARN("[GLX]: Context is not double buffered!.\n");
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gfx_ctx_glx_swap_interval(data, glx->g_interval);
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/* This can blow up on some drivers. It's not fatal, so override errors for this call. */
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old_handler = XSetErrorHandler(glx_nul_handler);
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XSetInputFocus(g_x11_dpy, g_x11_win, RevertToNone, CurrentTime);
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XSync(g_x11_dpy, False);
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XSetErrorHandler(old_handler);
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XFree(vi);
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if (!x11_input_ctx_new(true_full))
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goto error;
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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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ctx_glx_destroy_resources(glx);
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|
|
if (glx)
|
|
free(glx);
|
|
g_x11_screen = 0;
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
static void gfx_ctx_glx_input_driver(void *data,
|
|
const input_driver_t **input, void **input_data)
|
|
{
|
|
void *xinput = input_x.init();
|
|
|
|
(void)data;
|
|
|
|
*input = xinput ? &input_x : NULL;
|
|
*input_data = xinput;
|
|
}
|
|
|
|
static bool gfx_ctx_glx_suppress_screensaver(void *data, bool enable)
|
|
{
|
|
if (video_driver_display_type_get() != RARCH_DISPLAY_X11)
|
|
return false;
|
|
|
|
x11_suspend_screensaver(video_driver_window_get());
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool gfx_ctx_glx_has_windowed(void *data)
|
|
{
|
|
(void)data;
|
|
return true;
|
|
}
|
|
|
|
static gfx_ctx_proc_t gfx_ctx_glx_get_proc_address(const char *symbol)
|
|
{
|
|
return glXGetProcAddress((const GLubyte*)symbol);
|
|
}
|
|
|
|
static bool gfx_ctx_glx_bind_api(void *data, enum gfx_ctx_api api,
|
|
unsigned major, unsigned minor)
|
|
{
|
|
(void)data;
|
|
|
|
g_major = major;
|
|
g_minor = minor;
|
|
|
|
#ifdef HAVE_OPENGLES2
|
|
Display *dpy = XOpenDisplay(NULL);
|
|
const char *exts = glXQueryExtensionsString(dpy, DefaultScreen(dpy));
|
|
bool ret = api == GFX_CTX_OPENGL_ES_API &&
|
|
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
|
|
return api == GFX_CTX_OPENGL_API;
|
|
#endif
|
|
}
|
|
|
|
static void gfx_ctx_glx_show_mouse(void *data, bool state)
|
|
{
|
|
x11_show_mouse(g_x11_dpy, g_x11_win, state);
|
|
}
|
|
|
|
static void gfx_ctx_glx_bind_hw_render(void *data, bool enable)
|
|
{
|
|
gfx_ctx_glx_data_t *glx = (gfx_ctx_glx_data_t*)data;
|
|
|
|
if (!glx)
|
|
return;
|
|
|
|
(void)data;
|
|
|
|
glx->g_use_hw_ctx = enable;
|
|
|
|
if (!g_x11_dpy || !glx->g_glx_win)
|
|
return;
|
|
|
|
glXMakeContextCurrent(g_x11_dpy, glx->g_glx_win,
|
|
glx->g_glx_win, enable ? glx->g_hw_ctx : glx->g_ctx);
|
|
}
|
|
|
|
const gfx_ctx_driver_t gfx_ctx_glx = {
|
|
gfx_ctx_glx_init,
|
|
gfx_ctx_glx_destroy,
|
|
gfx_ctx_glx_bind_api,
|
|
gfx_ctx_glx_swap_interval,
|
|
gfx_ctx_glx_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_window_title,
|
|
x11_check_window,
|
|
gfx_ctx_glx_set_resize,
|
|
x11_has_focus,
|
|
gfx_ctx_glx_suppress_screensaver,
|
|
gfx_ctx_glx_has_windowed,
|
|
gfx_ctx_glx_swap_buffers,
|
|
gfx_ctx_glx_input_driver,
|
|
gfx_ctx_glx_get_proc_address,
|
|
NULL,
|
|
NULL,
|
|
gfx_ctx_glx_show_mouse,
|
|
"glx",
|
|
|
|
gfx_ctx_glx_bind_hw_render,
|
|
};
|
|
|