RetroArch/gfx/drivers_context/uwp_egl_ctx.c
2020-07-20 18:22:33 +02:00

293 lines
6.7 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - 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 <math.h>
/* UWP/ANGLE EGL context. */
/* necessary for mingw32 multimon defines: */
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0500 //_WIN32_WINNT_WIN2K
#endif
#include <tchar.h>
#include <wchar.h>
#include <string.h>
#include <math.h>
#include <dynamic/dylib.h>
#include <string/stdstring.h>
#ifdef HAVE_CONFIG_H
#include "../../config.h"
#endif
#include "../../uwp/uwp_func.h"
#include "gfx/common/win32_common.h"
#include "../../configuration.h"
#include "../../dynamic.h"
#include "../../retroarch.h"
#include "../../verbosity.h"
#include "../../frontend/frontend_driver.h"
#ifdef HAVE_EGL
#include "../common/egl_common.h"
#endif
#include "../common/gl_common.h"
#ifdef HAVE_ANGLE
#include "../common/angle_common.h"
#endif
/* TODO/FIXME - static globals */
static egl_ctx_data_t uwp_egl;
#ifdef HAVE_DYNAMIC
static dylib_t dll_handle = NULL; /* Handle to libGLESv2.dll */
#endif
typedef struct gfx_ctx_cgl_data
{
int interval;
} gfx_ctx_uwp_data_t;
bool create_gles_context(void* corewindow)
{
EGLint n, major, minor;
EGLint format;
EGLint attribs[] = {
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_BLUE_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_RED_SIZE, 8,
EGL_ALPHA_SIZE, 8,
EGL_DEPTH_SIZE, 16,
EGL_NONE
};
EGLint context_attributes[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
#ifdef HAVE_ANGLE
if (!angle_init_context(&uwp_egl, EGL_DEFAULT_DISPLAY,
&major, &minor, &n, attribs, NULL))
#else
if (!egl_init_context(&uwp_egl, EGL_NONE, EGL_DEFAULT_DISPLAY,
&major, &minor, &n, attribs, NULL))
#endif
{
egl_report_error();
goto error;
}
if (!egl_get_native_visual_id(&uwp_egl, &format))
goto error;
if (!egl_create_context(&uwp_egl, context_attributes))
{
egl_report_error();
goto error;
}
if (!egl_create_surface(&uwp_egl, uwp_get_corewindow()))
goto error;
return true;
error:
return false;
}
static void gfx_ctx_uwp_swap_interval(void *data, int interval)
{
gfx_ctx_uwp_data_t *uwp = (gfx_ctx_uwp_data_t*)data;
if (uwp->interval != interval)
{
uwp->interval = interval;
egl_set_swap_interval(&uwp_egl, uwp->interval);
}
}
static gfx_ctx_proc_t gfx_ctx_uwp_get_proc_address(const char* symbol)
{
#ifdef HAVE_DYNAMIC
return (gfx_ctx_proc_t)GetProcAddress((HINSTANCE)dll_handle, symbol);
#else
return NULL;
#endif
}
static void gfx_ctx_uwp_swap_buffers(void *data) { egl_swap_buffers(&uwp_egl); }
static bool gfx_ctx_uwp_set_resize(void *data,
unsigned width, unsigned height) { return false; }
static void gfx_ctx_uwp_get_video_size(void *data,
unsigned *width, unsigned *height)
{
bool quit;
bool resize;
win32_check_window(NULL, &quit, &resize, width, height);
}
static void *gfx_ctx_uwp_init(void *video_driver)
{
gfx_ctx_uwp_data_t *uwp = (gfx_ctx_uwp_data_t*)calloc(1, sizeof(*uwp));
if (!uwp)
return NULL;
#ifdef HAVE_DYNAMIC
dll_handle = dylib_load("libGLESv2.dll");
#endif
return uwp;
}
static void gfx_ctx_uwp_destroy(void *data)
{
gfx_ctx_uwp_data_t *wgl = (gfx_ctx_uwp_data_t*)data;
if (!wgl)
return;
egl_destroy(&uwp_egl);
#ifdef HAVE_DYNAMIC
dylib_close(dll_handle);
#endif
}
static bool gfx_ctx_uwp_set_video_mode(void *data,
unsigned width, unsigned height,
bool fullscreen)
{
gfx_ctx_uwp_data_t *uwp = (gfx_ctx_uwp_data_t*)data;
if (!win32_set_video_mode(NULL, width, height, fullscreen))
{
RARCH_ERR("[UWP EGL]: win32_set_video_mode failed.\n");
}
if (!create_gles_context(uwp_get_corewindow()))
{
RARCH_ERR("[UWP EGL]: create_gles_context failed.\n");
goto error;
}
gfx_ctx_uwp_swap_interval(data, uwp->interval);
return true;
error:
gfx_ctx_uwp_destroy(data);
return false;
}
static void gfx_ctx_uwp_input_driver(void *data,
const char *joypad_name,
input_driver_t **input, void **input_data)
{
settings_t *settings = config_get_ptr();
/* Plain xinput is supported on UWP, but it
* supports joypad only (uwp driver was added later) */
if (string_is_equal(settings->arrays.input_driver, "xinput"))
{
void* xinput = input_xinput.init(joypad_name);
*input = xinput ? (input_driver_t*)&input_xinput : NULL;
*input_data = xinput;
}
else
{
void* uwp = input_uwp.init(joypad_name);
*input = uwp ? (input_driver_t*)&input_uwp : NULL;
*input_data = uwp;
}
}
static enum gfx_ctx_api gfx_ctx_uwp_get_api(void *data)
{
return GFX_CTX_OPENGL_ES_API;
}
static bool gfx_ctx_uwp_bind_api(void *data,
enum gfx_ctx_api api, unsigned major, unsigned minor)
{
if (api == GFX_CTX_OPENGL_ES_API)
return true;
return false;
}
static void gfx_ctx_uwp_bind_hw_render(void *data, bool enable)
{
egl_bind_hw_render(&uwp_egl, enable);
}
static uint32_t gfx_ctx_uwp_get_flags(void *data)
{
uint32_t flags = 0;
#if defined(HAVE_SLANG) && defined(HAVE_SPIRV_CROSS)
BIT32_SET(flags, GFX_CTX_FLAGS_SHADERS_SLANG);
#endif
#ifdef HAVE_GLSL
BIT32_SET(flags, GFX_CTX_FLAGS_SHADERS_GLSL);
#endif
return flags;
}
const gfx_ctx_driver_t gfx_ctx_uwp = {
gfx_ctx_uwp_init,
gfx_ctx_uwp_destroy,
gfx_ctx_uwp_get_api,
gfx_ctx_uwp_bind_api,
gfx_ctx_uwp_swap_interval,
gfx_ctx_uwp_set_video_mode,
gfx_ctx_uwp_get_video_size,
NULL, /* get refresh rate */
NULL, /* get video output size */
NULL, /* get video output prev */
NULL, /* get video output next */
win32_get_metrics,
NULL,
NULL, /* update title */
win32_check_window,
gfx_ctx_uwp_set_resize,
win32_has_focus,
NULL, /* suppress screensaver */
true, /* has_windowed */
gfx_ctx_uwp_swap_buffers,
gfx_ctx_uwp_input_driver,
gfx_ctx_uwp_get_proc_address,
NULL,
NULL,
win32_show_cursor,
"egl_uwp",
gfx_ctx_uwp_get_flags, /* get flags */
NULL, /* set flags */
gfx_ctx_uwp_bind_hw_render,
NULL,
NULL
};