RetroArch/gfx/drivers_context/opendingux_fbdev_ctx.c
2017-05-19 03:34:53 +02:00

285 lines
6.5 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 <signal.h>
#ifdef HAVE_CONFIG_H
#include "../../config.h"
#endif
#ifdef HAVE_EGL
#include "../common/egl_common.h"
#endif
#if defined(HAVE_OPENGLES)
#include "../common/gl_common.h"
#endif
#include "../../frontend/frontend_driver.h"
typedef struct
{
#ifdef HAVE_EGL
egl_ctx_data_t egl;
EGLNativeWindowType native_window;
#endif
bool resize;
unsigned width, height;
} opendingux_ctx_data_t;
static void gfx_ctx_opendingux_destroy(void *data)
{
opendingux_ctx_data_t *viv = (opendingux_ctx_data_t*)data;
if (viv)
{
#ifdef HAVE_EGL
egl_destroy(&viv->egl);
#endif
viv->resize = false;
free(viv);
}
}
static void *gfx_ctx_opendingux_init(video_frame_info_t *video_info, void *video_driver)
{
#ifdef HAVE_EGL
EGLint n;
EGLint major, minor;
EGLint format;
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
};
#endif
opendingux_ctx_data_t *viv = (opendingux_ctx_data_t*)
calloc(1, sizeof(*viv));
if (!viv)
return NULL;
#ifdef HAVE_EGL
frontend_driver_install_signal_handler();
if (!egl_init_context(&viv->egl, EGL_NONE, EGL_DEFAULT_DISPLAY,
&major, &minor,
&n, attribs))
{
egl_report_error();
goto error;
}
#endif
return viv;
error:
#ifdef HAVE_EGL
RARCH_ERR("[opendingux fbdev]: EGL error: %d.\n", eglGetError());
#endif
gfx_ctx_opendingux_destroy(viv);
return NULL;
}
static void gfx_ctx_opendingux_get_video_size(void *data,
unsigned *width, unsigned *height)
{
opendingux_ctx_data_t *viv = (opendingux_ctx_data_t*)data;
*width = viv->width;
*height = viv->height;
}
static void gfx_ctx_opendingux_check_window(void *data, bool *quit,
bool *resize, unsigned *width, unsigned *height, bool is_shutdown)
{
unsigned new_width, new_height;
opendingux_ctx_data_t *viv = (opendingux_ctx_data_t*)data;
#ifdef HAVE_EGL
egl_get_video_size(&viv->egl, &new_width, &new_height);
#endif
if (new_width != *width || new_height != *height)
{
*width = new_width;
*height = new_height;
*resize = true;
}
*quit = (bool)frontend_driver_get_signal_handler_state();
}
static bool gfx_ctx_opendingux_set_video_mode(void *data,
video_frame_info_t *video_info,
unsigned width, unsigned height,
bool fullscreen)
{
#ifdef HAVE_EGL
static const EGLint attribs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2, /* Use version 2, even for GLES3. */
EGL_NONE
};
#endif
opendingux_ctx_data_t *viv = (opendingux_ctx_data_t*)data;
/* Pick some arbitrary default. */
if (!width || !fullscreen)
width = 1280;
if (!height || !fullscreen)
height = 1024;
viv->width = width;
viv->height = height;
#ifdef HAVE_EGL
if (!egl_create_context(&viv->egl, attribs))
{
egl_report_error();
goto error;
}
viv->native_window = 0;
if (!egl_create_surface(&viv->egl, viv->native_window))
goto error;
#endif
return true;
error:
#ifdef HAVE_EGL
RARCH_ERR("[opendingux fbdev]: EGL error: %d.\n", eglGetError());
#endif
gfx_ctx_opendingux_destroy(data);
return false;
}
static void gfx_ctx_opendingux_input_driver(void *data,
const char *name,
const input_driver_t **input, void **input_data)
{
*input = NULL;
*input_data = NULL;
}
static bool gfx_ctx_opendingux_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_opendingux_has_focus(void *data)
{
(void)data;
return true;
}
static bool gfx_ctx_opendingux_suppress_screensaver(void *data, bool enable)
{
(void)data;
(void)enable;
return false;
}
static void gfx_ctx_opendingux_swap_buffers(void *data, void *data2)
{
opendingux_ctx_data_t *viv = (opendingux_ctx_data_t*)data;
#ifdef HAVE_EGL
egl_swap_buffers(&viv->egl);
#endif
}
static void gfx_ctx_opendingux_set_swap_interval(
void *data, unsigned swap_interval)
{
opendingux_ctx_data_t *viv = (opendingux_ctx_data_t*)data;
#ifdef HAVE_EGL
egl_set_swap_interval(&viv->egl, swap_interval);
#endif
}
static gfx_ctx_proc_t gfx_ctx_opendingux_get_proc_address(const char *symbol)
{
#ifdef HAVE_EGL
return egl_get_proc_address(symbol);
#endif
}
static void gfx_ctx_opendingux_bind_hw_render(void *data, bool enable)
{
opendingux_ctx_data_t *viv = (opendingux_ctx_data_t*)data;
#ifdef HAVE_EGL
egl_bind_hw_render(&viv->egl, enable);
#endif
}
static uint32_t gfx_ctx_opendingux_get_flags(void *data)
{
uint32_t flags = 0;
BIT32_SET(flags, GFX_CTX_FLAGS_NONE);
return flags;
}
static void gfx_ctx_opendingux_set_flags(void *data, uint32_t flags)
{
(void)data;
}
const gfx_ctx_driver_t gfx_ctx_opendingux_fbdev = {
gfx_ctx_opendingux_init,
gfx_ctx_opendingux_destroy,
gfx_ctx_opendingux_bind_api,
gfx_ctx_opendingux_set_swap_interval,
gfx_ctx_opendingux_set_video_mode,
gfx_ctx_opendingux_get_video_size,
NULL, /* get_video_output_size */
NULL, /* get_video_output_prev */
NULL, /* get_video_output_next */
NULL, /* get_metrics */
NULL,
NULL, /* update_title */
gfx_ctx_opendingux_check_window,
NULL, /* set_resize */
gfx_ctx_opendingux_has_focus,
gfx_ctx_opendingux_suppress_screensaver,
NULL, /* has_windowed */
gfx_ctx_opendingux_swap_buffers,
gfx_ctx_opendingux_input_driver,
gfx_ctx_opendingux_get_proc_address,
NULL,
NULL,
NULL,
"opendingux-fbdev",
gfx_ctx_opendingux_get_flags,
gfx_ctx_opendingux_set_flags,
gfx_ctx_opendingux_bind_hw_render,
NULL,
NULL
};