mirror of
https://github.com/CTCaer/RetroArch.git
synced 2024-12-24 19:56:06 +00:00
280 lines
6.6 KiB
C
280 lines
6.6 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (c) 2011-2016 - 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 <retro_assert.h>
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#include "../../verbosity.h"
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#include "egl_common.h"
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#ifdef HAVE_OPENGL
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#include "gl_common.h"
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#endif
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volatile sig_atomic_t g_egl_quit;
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bool g_egl_inited;
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unsigned g_egl_major = 0;
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unsigned g_egl_minor = 0;
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void egl_report_error(void)
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{
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EGLint error = eglGetError();
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const char *str = NULL;
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switch (error)
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{
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case EGL_SUCCESS:
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str = "EGL_SUCCESS";
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break;
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case EGL_BAD_DISPLAY:
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str = "EGL_BAD_DISPLAY";
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break;
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case EGL_BAD_SURFACE:
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str = "EGL_BAD_SURFACE";
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break;
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case EGL_BAD_CONTEXT:
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str = "EGL_BAD_CONTEXT";
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break;
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default:
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str = "Unknown";
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break;
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}
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RARCH_ERR("[EGL]: #0x%x, %s\n", (unsigned)error, str);
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}
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gfx_ctx_proc_t egl_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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void egl_destroy(void *data)
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{
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egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
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if (egl->dpy)
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{
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#if defined HAVE_OPENGL
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#if !defined(RARCH_MOBILE)
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if (egl->ctx != EGL_NO_CONTEXT)
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{
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glFlush();
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glFinish();
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}
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#endif
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#endif
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eglMakeCurrent(egl->dpy,
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EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
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if (egl->ctx != EGL_NO_CONTEXT)
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eglDestroyContext(egl->dpy, egl->ctx);
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if (egl->hw_ctx != EGL_NO_CONTEXT)
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eglDestroyContext(egl->dpy, egl->hw_ctx);
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if (egl->surf != EGL_NO_SURFACE)
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eglDestroySurface(egl->dpy, egl->surf);
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eglTerminate(egl->dpy);
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}
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/* Be as careful as possible in deinit.
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* If we screw up, any TTY will not restore.
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*/
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egl->ctx = EGL_NO_CONTEXT;
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egl->hw_ctx = EGL_NO_CONTEXT;
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egl->surf = EGL_NO_SURFACE;
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egl->dpy = EGL_NO_DISPLAY;
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egl->config = 0;
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g_egl_quit = 0;
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g_egl_inited = false;
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}
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void egl_bind_hw_render(void *data, bool enable)
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{
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egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
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egl->use_hw_ctx = enable;
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if (egl->dpy == EGL_NO_DISPLAY)
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return;
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if (egl->surf == EGL_NO_SURFACE)
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return;
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eglMakeCurrent(egl->dpy, egl->surf,
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egl->surf,
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enable ? egl->hw_ctx : egl->ctx);
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}
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void egl_swap_buffers(void *data)
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{
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egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
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if (egl->dpy == EGL_NO_DISPLAY)
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return;
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if (egl->surf == EGL_NO_SURFACE)
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return;
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eglSwapBuffers(egl->dpy, egl->surf);
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}
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void egl_set_swap_interval(void *data, unsigned interval)
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{
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egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
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/* Can be called before initialization.
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* Some contexts require that swap interval
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* is known at startup time.
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*/
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egl->interval = interval;
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if (egl->dpy == EGL_NO_DISPLAY)
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return;
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if (!(eglGetCurrentContext()))
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return;
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RARCH_LOG("[EGL]: eglSwapInterval(%u)\n", interval);
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if (!eglSwapInterval(egl->dpy, interval))
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{
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RARCH_ERR("[EGL]: eglSwapInterval() failed.\n");
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egl_report_error();
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}
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}
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void egl_get_video_size(void *data, unsigned *width, unsigned *height)
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{
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egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
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*width = 0;
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*height = 0;
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if (egl->dpy != EGL_NO_DISPLAY && egl->surf != EGL_NO_SURFACE)
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{
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EGLint gl_width, gl_height;
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eglQuerySurface(egl->dpy, egl->surf, EGL_WIDTH, &gl_width);
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eglQuerySurface(egl->dpy, egl->surf, EGL_HEIGHT, &gl_height);
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*width = gl_width;
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*height = gl_height;
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}
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}
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static void egl_sighandler(int sig)
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{
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(void)sig;
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if (g_egl_quit) exit(1);
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g_egl_quit = 1;
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}
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void egl_install_sighandlers(void)
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{
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struct sigaction sa;
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sa.sa_sigaction = NULL;
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sa.sa_handler = egl_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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}
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bool egl_init_context(void *data, NativeDisplayType display,
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EGLint *major, EGLint *minor,
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EGLint *n, const EGLint *attrib_ptr)
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{
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egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
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egl->dpy = eglGetDisplay(display);
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if (!egl->dpy)
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{
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RARCH_ERR("[EGL]: Couldn't get EGL display.\n");
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return false;
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}
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if (!eglInitialize(egl->dpy, major, minor))
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return false;
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RARCH_LOG("[EGL]: EGL version: %d.%d\n", *major, *minor);
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if (!eglChooseConfig(egl->dpy, attrib_ptr, &egl->config, 1, n) || *n != 1)
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return false;
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egl->major = g_egl_major;
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egl->minor = g_egl_minor;
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return true;
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}
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bool egl_create_context(void *data, const EGLint *egl_attribs)
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{
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egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
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egl->ctx = eglCreateContext(egl->dpy, egl->config, EGL_NO_CONTEXT,
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egl_attribs);
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egl->hw_ctx = NULL;
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if (egl->ctx == EGL_NO_CONTEXT)
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return false;
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if (egl->use_hw_ctx)
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{
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egl->hw_ctx = eglCreateContext(egl->dpy, egl->config, egl->ctx,
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egl_attribs);
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RARCH_LOG("[EGL]: Created shared context: %p.\n", (void*)egl->hw_ctx);
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if (egl->hw_ctx == EGL_NO_CONTEXT)
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return false;;
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}
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return true;
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}
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bool egl_create_surface(void *data, NativeWindowType native_window)
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{
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egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
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egl->surf = eglCreateWindowSurface(egl->dpy, egl->config, native_window, NULL);
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if (egl->surf == EGL_NO_SURFACE)
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return false;
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/* Connect the context to the surface. */
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if (!eglMakeCurrent(egl->dpy, egl->surf, egl->surf, egl->ctx))
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return false;
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RARCH_LOG("[EGL]: Current context: %p.\n", (void*)eglGetCurrentContext());
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return true;
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}
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bool egl_get_native_visual_id(void *data, EGLint *value)
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{
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egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
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if (!eglGetConfigAttrib(egl->dpy, egl->config,
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EGL_NATIVE_VISUAL_ID, value))
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{
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RARCH_ERR("[EGL]: egl_get_native_visual_id failed.\n");
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return false;
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}
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return true;
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}
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bool egl_has_config(void *data)
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{
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egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
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if (!egl->config)
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{
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RARCH_ERR("[EGL]: No EGL configurations available.\n");
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return false;
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}
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return true;
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}
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