mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-11 01:57:16 +00:00
282 lines
6.7 KiB
C
282 lines
6.7 KiB
C
/* RetroArch - A frontend for libretro.
|
|
* copyright (c) 2011-2015 - Daniel De Matteis
|
|
*
|
|
* 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 <retro_assert.h>
|
|
|
|
#include "../../verbosity.h"
|
|
|
|
#include "egl_common.h"
|
|
#ifdef HAVE_OPENGL
|
|
#include "gl_common.h"
|
|
#endif
|
|
|
|
volatile sig_atomic_t g_egl_quit;
|
|
bool g_egl_inited;
|
|
|
|
enum gfx_ctx_api g_egl_api;
|
|
unsigned g_egl_major = 0;
|
|
unsigned g_egl_minor = 0;
|
|
|
|
void egl_report_error(void)
|
|
{
|
|
EGLint error = eglGetError();
|
|
const char *str = NULL;
|
|
switch (error)
|
|
{
|
|
case EGL_SUCCESS:
|
|
str = "EGL_SUCCESS";
|
|
break;
|
|
|
|
case EGL_BAD_DISPLAY:
|
|
str = "EGL_BAD_DISPLAY";
|
|
break;
|
|
|
|
case EGL_BAD_SURFACE:
|
|
str = "EGL_BAD_SURFACE";
|
|
break;
|
|
|
|
case EGL_BAD_CONTEXT:
|
|
str = "EGL_BAD_CONTEXT";
|
|
break;
|
|
|
|
default:
|
|
str = "Unknown";
|
|
break;
|
|
}
|
|
|
|
RARCH_ERR("[EGL]: #0x%x, %s\n", (unsigned)error, str);
|
|
}
|
|
|
|
gfx_ctx_proc_t egl_get_proc_address(const char *symbol)
|
|
{
|
|
return eglGetProcAddress(symbol);
|
|
}
|
|
|
|
void egl_destroy(void *data)
|
|
{
|
|
egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
|
|
if (egl->dpy)
|
|
{
|
|
#if defined HAVE_OPENGL
|
|
#if !defined(RARCH_MOBILE)
|
|
if (egl->ctx != EGL_NO_CONTEXT)
|
|
{
|
|
glFlush();
|
|
glFinish();
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
eglMakeCurrent(egl->dpy,
|
|
EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
|
|
if (egl->ctx != EGL_NO_CONTEXT)
|
|
eglDestroyContext(egl->dpy, egl->ctx);
|
|
|
|
if (egl->hw_ctx != EGL_NO_CONTEXT)
|
|
eglDestroyContext(egl->dpy, egl->hw_ctx);
|
|
|
|
if (egl->surf != EGL_NO_SURFACE)
|
|
eglDestroySurface(egl->dpy, egl->surf);
|
|
eglTerminate(egl->dpy);
|
|
}
|
|
|
|
/* Be as careful as possible in deinit.
|
|
* If we screw up, any TTY will not restore.
|
|
*/
|
|
|
|
egl->ctx = EGL_NO_CONTEXT;
|
|
egl->hw_ctx = EGL_NO_CONTEXT;
|
|
egl->surf = EGL_NO_SURFACE;
|
|
egl->dpy = EGL_NO_DISPLAY;
|
|
egl->config = 0;
|
|
g_egl_quit = 0;
|
|
egl->api = GFX_CTX_NONE;
|
|
g_egl_inited = false;
|
|
}
|
|
|
|
void egl_bind_hw_render(void *data, bool enable)
|
|
{
|
|
egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
|
|
egl->use_hw_ctx = enable;
|
|
|
|
if (egl->dpy == EGL_NO_DISPLAY)
|
|
return;
|
|
if (egl->surf == EGL_NO_SURFACE)
|
|
return;
|
|
|
|
eglMakeCurrent(egl->dpy, egl->surf,
|
|
egl->surf,
|
|
enable ? egl->hw_ctx : egl->ctx);
|
|
}
|
|
|
|
void egl_swap_buffers(void *data)
|
|
{
|
|
egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
|
|
if (egl->dpy == EGL_NO_DISPLAY)
|
|
return;
|
|
if (egl->surf == EGL_NO_SURFACE)
|
|
return;
|
|
eglSwapBuffers(egl->dpy, egl->surf);
|
|
}
|
|
|
|
void egl_set_swap_interval(void *data, unsigned interval)
|
|
{
|
|
egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
|
|
/* Can be called before initialization.
|
|
* Some contexts require that swap interval
|
|
* is known at startup time.
|
|
*/
|
|
egl->interval = interval;
|
|
|
|
if (egl->dpy == EGL_NO_DISPLAY)
|
|
return;
|
|
if (!(eglGetCurrentContext()))
|
|
return;
|
|
|
|
RARCH_LOG("[EGL]: eglSwapInterval(%u)\n", interval);
|
|
if (!eglSwapInterval(egl->dpy, interval))
|
|
{
|
|
RARCH_ERR("[EGL]: eglSwapInterval() failed.\n");
|
|
egl_report_error();
|
|
}
|
|
}
|
|
|
|
void egl_get_video_size(void *data, unsigned *width, unsigned *height)
|
|
{
|
|
egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
|
|
|
|
*width = 0;
|
|
*height = 0;
|
|
|
|
if (egl->dpy != EGL_NO_DISPLAY && egl->surf != EGL_NO_SURFACE)
|
|
{
|
|
EGLint gl_width, gl_height;
|
|
|
|
eglQuerySurface(egl->dpy, egl->surf, EGL_WIDTH, &gl_width);
|
|
eglQuerySurface(egl->dpy, egl->surf, EGL_HEIGHT, &gl_height);
|
|
*width = gl_width;
|
|
*height = gl_height;
|
|
}
|
|
}
|
|
|
|
static void egl_sighandler(int sig)
|
|
{
|
|
(void)sig;
|
|
g_egl_quit = 1;
|
|
}
|
|
|
|
void egl_install_sighandlers(void)
|
|
{
|
|
struct sigaction sa;
|
|
|
|
sa.sa_sigaction = NULL;
|
|
sa.sa_handler = egl_sighandler;
|
|
sa.sa_flags = SA_RESTART;
|
|
sigemptyset(&sa.sa_mask);
|
|
sigaction(SIGINT, &sa, NULL);
|
|
sigaction(SIGTERM, &sa, NULL);
|
|
}
|
|
|
|
bool egl_init_context(void *data, NativeDisplayType display,
|
|
EGLint *major, EGLint *minor,
|
|
EGLint *n, const EGLint *attrib_ptr)
|
|
{
|
|
egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
|
|
egl->dpy = eglGetDisplay(display);
|
|
if (!egl->dpy)
|
|
{
|
|
RARCH_ERR("[EGL]: Couldn't get EGL display.\n");
|
|
return false;
|
|
}
|
|
|
|
if (!eglInitialize(egl->dpy, major, minor))
|
|
return false;
|
|
|
|
RARCH_LOG("[EGL]: EGL version: %d.%d\n", *major, *minor);
|
|
|
|
if (!eglChooseConfig(egl->dpy, attrib_ptr, &egl->config, 1, n) || *n != 1)
|
|
return false;
|
|
|
|
egl->api = g_egl_api;
|
|
egl->major = g_egl_major;
|
|
egl->minor = g_egl_minor;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool egl_create_context(void *data, const EGLint *egl_attribs)
|
|
{
|
|
egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
|
|
egl->ctx = eglCreateContext(egl->dpy, egl->config, EGL_NO_CONTEXT,
|
|
egl_attribs);
|
|
egl->hw_ctx = NULL;
|
|
|
|
if (egl->ctx == EGL_NO_CONTEXT)
|
|
return false;
|
|
|
|
if (egl->use_hw_ctx)
|
|
{
|
|
egl->hw_ctx = eglCreateContext(egl->dpy, egl->config, egl->ctx,
|
|
egl_attribs);
|
|
RARCH_LOG("[EGL]: Created shared context: %p.\n", (void*)egl->hw_ctx);
|
|
|
|
if (egl->hw_ctx == EGL_NO_CONTEXT)
|
|
return false;;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool egl_create_surface(void *data, NativeWindowType native_window)
|
|
{
|
|
egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
|
|
egl->surf = eglCreateWindowSurface(egl->dpy, egl->config, native_window, NULL);
|
|
|
|
if (egl->surf == EGL_NO_SURFACE)
|
|
return false;
|
|
|
|
/* Connect the context to the surface. */
|
|
if (!eglMakeCurrent(egl->dpy, egl->surf, egl->surf, egl->ctx))
|
|
return false;
|
|
|
|
RARCH_LOG("[EGL]: Current context: %p.\n", (void*)eglGetCurrentContext());
|
|
|
|
return true;
|
|
}
|
|
|
|
bool egl_get_native_visual_id(void *data, EGLint *value)
|
|
{
|
|
egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
|
|
if (!eglGetConfigAttrib(egl->dpy, egl->config,
|
|
EGL_NATIVE_VISUAL_ID, value))
|
|
{
|
|
RARCH_ERR("[EGL]: egl_get_native_visual_id failed.\n");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool egl_has_config(void *data)
|
|
{
|
|
egl_ctx_data_t *egl = (egl_ctx_data_t*)data;
|
|
if (!egl->config)
|
|
{
|
|
RARCH_ERR("[EGL]: No EGL configurations available.\n");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|