RetroArch/gfx/drivers_context/vivante_fbdev_ctx.c

323 lines
7.7 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2014 2015 - Jean-Andre Santoni
*
* 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 "../../driver.h"
#include "../../general.h"
#include "../../runloop.h"
#include "../video_monitor.h"
#include "../drivers/gl_common.h"
#include <EGL/egl.h>
#include <signal.h>
static EGLContext g_egl_ctx;
static EGLSurface g_egl_surf;
static EGLDisplay g_egl_dpy;
static EGLConfig g_egl_config;
static bool g_resize;
static unsigned g_width, g_height;
static volatile sig_atomic_t g_quit;
static void sighandler(int sig)
{
(void)sig;
g_quit = 1;
}
static void gfx_ctx_vivante_set_swap_interval(void *data, unsigned interval)
{
(void)data;
if (!g_egl_dpy)
return;
eglSwapInterval(g_egl_dpy, interval);
}
static void gfx_ctx_vivante_destroy(void *data)
{
(void)data;
if (g_egl_dpy != EGL_NO_DISPLAY)
{
if (g_egl_ctx != EGL_NO_CONTEXT)
{
glFlush();
glFinish();
}
eglMakeCurrent(g_egl_dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
if (g_egl_ctx != EGL_NO_CONTEXT)
eglDestroyContext(g_egl_dpy, g_egl_ctx);
if (g_egl_surf != EGL_NO_SURFACE)
eglDestroySurface(g_egl_dpy, g_egl_surf);
eglTerminate(g_egl_dpy);
}
g_egl_dpy = EGL_NO_DISPLAY;
g_egl_surf = EGL_NO_SURFACE;
g_egl_ctx = EGL_NO_CONTEXT;
g_egl_config = 0;
g_quit = 0;
g_resize = false;
}
static void gfx_ctx_vivante_get_video_size(void *data,
unsigned *width, unsigned *height)
{
(void)data;
*width = 0;
*height = 0;
if (g_egl_dpy != EGL_NO_DISPLAY && g_egl_surf != EGL_NO_SURFACE)
{
EGLint gl_width, gl_height;
eglQuerySurface(g_egl_dpy, g_egl_surf, EGL_WIDTH, &gl_width);
eglQuerySurface(g_egl_dpy, g_egl_surf, EGL_HEIGHT, &gl_height);
*width = gl_width;
*height = gl_height;
}
}
static bool gfx_ctx_vivante_init(void *data)
{
EGLint num_config;
EGLint egl_version_major, egl_version_minor;
EGLint format;
struct sigaction sa = {{0}};
static const EGLint attribs[] = {
#if 0
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
#endif
EGL_BLUE_SIZE, 5,
EGL_GREEN_SIZE, 6,
EGL_RED_SIZE, 5,
EGL_ALPHA_SIZE, 0,
EGL_SAMPLES, 0,
EGL_NONE
};
(void)data;
sa.sa_handler = sighandler;
sa.sa_flags = SA_RESTART;
sigemptyset(&sa.sa_mask);
sigaction(SIGINT, &sa, NULL);
sigaction(SIGTERM, &sa, NULL);
RARCH_LOG("[Vivante fbdev]: Initializing context\n");
if ((g_egl_dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY)) == EGL_NO_DISPLAY)
{
RARCH_ERR("[Vivante fbdev]: eglGetDisplay failed.\n");
goto error;
}
if (!eglInitialize(g_egl_dpy, &egl_version_major, &egl_version_minor))
{
RARCH_ERR("[Vivante fbdev]: eglInitialize failed.\n");
goto error;
}
RARCH_LOG("[Vivante fbdev]: EGL version: %d.%d\n",
egl_version_major, egl_version_minor);
if (!eglChooseConfig(g_egl_dpy, attribs, &g_egl_config, 1, &num_config))
{
RARCH_ERR("[Vivante fbdev]: eglChooseConfig failed.\n");
goto error;
}
return true;
error:
RARCH_ERR("[Vivante fbdev]: EGL error: %d.\n", eglGetError());
gfx_ctx_vivante_destroy(data);
return false;
}
static void gfx_ctx_vivante_swap_buffers(void *data)
{
(void)data;
eglSwapBuffers(g_egl_dpy, g_egl_surf);
}
static void gfx_ctx_vivante_check_window(void *data, bool *quit,
bool *resize, unsigned *width, unsigned *height, unsigned frame_count)
{
unsigned new_width, new_height;
(void)frame_count;
gfx_ctx_vivante_get_video_size(data, &new_width, &new_height);
if (new_width != *width || new_height != *height)
{
*width = new_width;
*height = new_height;
*resize = true;
}
*quit = g_quit;
}
static void gfx_ctx_vivante_set_resize(void *data,
unsigned width, unsigned height)
{
(void)data;
(void)width;
(void)height;
}
static void gfx_ctx_vivante_update_window_title(void *data)
{
char buf[128], buf_fps[128];
settings_t *settings = config_get_ptr();
(void)data;
video_monitor_get_fps(buf, sizeof(buf),
buf_fps, sizeof(buf_fps));
if (settings->fps_show)
rarch_main_msg_queue_push(buf_fps, 1, 1, false);
}
static bool gfx_ctx_vivante_set_video_mode(void *data,
unsigned width, unsigned height,
bool fullscreen)
{
EGLNativeWindowType window;
static const EGLint attribs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2, /* Use version 2, even for GLES3. */
EGL_NONE
};
/* Pick some arbitrary default. */
if (!width || !fullscreen)
width = 1280;
if (!height || !fullscreen)
height = 1024;
g_width = width;
g_height = height;
window = fbCreateWindow(fbGetDisplayByIndex(0), 0, 0, 0, 0);
g_egl_surf = eglCreateWindowSurface(g_egl_dpy, g_egl_config, window, 0);
if (g_egl_surf == EGL_NO_SURFACE)
{
RARCH_ERR("eglCreateWindowSurface failed.\n");
goto error;
}
g_egl_ctx = eglCreateContext(g_egl_dpy, g_egl_config, 0, attribs);
if (g_egl_ctx == EGL_NO_CONTEXT)
{
RARCH_ERR("eglCreateContext failed.\n");
goto error;
}
if (!eglMakeCurrent(g_egl_dpy, g_egl_surf, g_egl_surf, g_egl_ctx))
{
RARCH_ERR("eglMakeCurrent failed.\n");
goto error;
}
return true;
error:
RARCH_ERR("[Vivante fbdev]: EGL error: %d.\n", eglGetError());
gfx_ctx_vivante_destroy(data);
return false;
}
static void gfx_ctx_vivante_input_driver(void *data,
const input_driver_t **input, void **input_data)
{
(void)data;
*input = NULL;
*input_data = NULL;
}
static gfx_ctx_proc_t gfx_ctx_vivante_get_proc_address(const char *symbol)
{
gfx_ctx_proc_t ret;
void *sym__;
rarch_assert(sizeof(void*) == sizeof(void (*)(void)));
sym__ = eglGetProcAddress(symbol);
memcpy(&ret, &sym__, sizeof(void*));
return ret;
}
static bool gfx_ctx_vivante_bind_api(void *data,
enum gfx_ctx_api api, unsigned major, unsigned minor)
{
(void)data;
return api == GFX_CTX_OPENGL_ES_API;
}
static bool gfx_ctx_vivante_has_focus(void *data)
{
(void)data;
return true;
}
static bool gfx_ctx_vivante_suppress_screensaver(void *data, bool enable)
{
(void)data;
(void)enable;
return false;
}
static bool gfx_ctx_vivante_has_windowed(void *data)
{
(void)data;
return false;
}
const gfx_ctx_driver_t gfx_ctx_vivante_fbdev = {
gfx_ctx_vivante_init,
gfx_ctx_vivante_destroy,
gfx_ctx_vivante_bind_api,
gfx_ctx_vivante_set_swap_interval,
gfx_ctx_vivante_set_video_mode,
gfx_ctx_vivante_get_video_size,
NULL, /* get_video_output_size */
NULL, /* get_video_output_prev */
NULL, /* get_video_output_next */
NULL, /* get_metrics */
NULL,
gfx_ctx_vivante_update_window_title,
gfx_ctx_vivante_check_window,
gfx_ctx_vivante_set_resize,
gfx_ctx_vivante_has_focus,
gfx_ctx_vivante_suppress_screensaver,
gfx_ctx_vivante_has_windowed,
gfx_ctx_vivante_swap_buffers,
gfx_ctx_vivante_input_driver,
gfx_ctx_vivante_get_proc_address,
NULL,
NULL,
NULL,
"vivante-fbdev",
};