RetroArch/gfx/drivers_context/androidegl_ctx.c
2015-04-21 00:57:51 +02:00

491 lines
12 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* 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 "../../driver.h"
#include "../../general.h"
#include "../../runloop.h"
#include "../video_monitor.h"
#include "../drivers/gl_common.h"
#include <EGL/egl.h>
#include "../../frontend/drivers/platform_android.h"
#include <formats/image.h>
#include <stdint.h>
/* forward declaration */
int system_property_get(const char *name, char *value);
typedef struct gfx_ctx_android_data
{
bool g_use_hw_ctx;
EGLContext g_egl_hw_ctx;
EGLContext g_egl_ctx;
EGLSurface g_egl_surf;
EGLDisplay g_egl_dpy;
EGLConfig g_egl_config;
} gfx_ctx_android_data_t;
static bool g_es3;
static void android_gfx_ctx_set_swap_interval(void *data, unsigned interval)
{
driver_t *driver = driver_get_ptr();
gfx_ctx_android_data_t *android = NULL;
android = (gfx_ctx_android_data_t*)driver->video_context_data;
(void)data;
if (!android)
return;
eglSwapInterval(android->g_egl_dpy, interval);
}
static void android_gfx_ctx_destroy_resources(gfx_ctx_android_data_t *android)
{
if (!android)
return;
if (android->g_egl_dpy)
{
if (android->g_egl_ctx)
{
eglMakeCurrent(android->g_egl_dpy,
EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroyContext(android->g_egl_dpy, android->g_egl_ctx);
}
if (android->g_egl_hw_ctx)
eglDestroyContext(android->g_egl_dpy, android->g_egl_hw_ctx);
if (android->g_egl_surf)
eglDestroySurface(android->g_egl_dpy, android->g_egl_surf);
eglTerminate(android->g_egl_dpy);
}
/* Be as careful as possible in deinit. */
android->g_egl_ctx = NULL;
android->g_egl_hw_ctx = NULL;
android->g_egl_surf = NULL;
android->g_egl_dpy = NULL;
android->g_egl_config = 0;
}
static void android_gfx_ctx_destroy(void *data)
{
driver_t *driver = driver_get_ptr();
gfx_ctx_android_data_t *android = NULL;
android = (gfx_ctx_android_data_t*)driver->video_context_data;
(void)data;
if (!android)
return;
android_gfx_ctx_destroy_resources(android);
if (driver->video_context_data)
free(driver->video_context_data);
driver->video_context_data = NULL;
}
static void android_gfx_ctx_get_video_size(void *data,
unsigned *width, unsigned *height)
{
EGLint gl_width, gl_height;
driver_t *driver = driver_get_ptr();
gfx_ctx_android_data_t *android = NULL;
android = (gfx_ctx_android_data_t*)
driver->video_context_data;
*width = 0;
*height = 0;
if (!android)
return;
if (!android->g_egl_dpy)
return;
eglQuerySurface(android->g_egl_dpy,
android->g_egl_surf, EGL_WIDTH, &gl_width);
eglQuerySurface(android->g_egl_dpy,
android->g_egl_surf, EGL_HEIGHT, &gl_height);
*width = gl_width;
*height = gl_height;
}
static bool android_gfx_ctx_init(void *data)
{
int var;
EGLint num_config, egl_version_major, egl_version_minor;
EGLint format;
EGLint context_attributes[] = {
EGL_CONTEXT_CLIENT_VERSION, g_es3 ? 3 : 2,
EGL_NONE
};
const 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_NONE
};
driver_t *driver = driver_get_ptr();
gfx_ctx_android_data_t *android = NULL;
struct android_app *android_app = (struct android_app*)g_android;
if (!android_app)
return false;
android = (gfx_ctx_android_data_t*)
calloc(1, sizeof(gfx_ctx_android_data_t));
if (!android)
return false;
RARCH_LOG("Android EGL: GLES version = %d.\n", g_es3 ? 3 : 2);
android->g_egl_dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (!android->g_egl_dpy)
{
RARCH_ERR("[Android/EGL]: Couldn't get EGL display.\n");
goto error;
}
if (!eglInitialize(android->g_egl_dpy,
&egl_version_major, &egl_version_minor))
goto error;
RARCH_LOG("[ANDROID/EGL]: EGL version: %d.%d\n",
egl_version_major, egl_version_minor);
if (!eglChooseConfig(android->g_egl_dpy,
attribs, &android->g_egl_config, 1, &num_config))
goto error;
var = eglGetConfigAttrib(android->g_egl_dpy, android->g_egl_config,
EGL_NATIVE_VISUAL_ID, &format);
if (!var)
{
RARCH_ERR("eglGetConfigAttrib failed: %d.\n", var);
goto error;
}
ANativeWindow_setBuffersGeometry(android_app->window, 0, 0, format);
android->g_egl_ctx = eglCreateContext(android->g_egl_dpy,
android->g_egl_config, EGL_NO_CONTEXT, context_attributes);
if (android->g_egl_ctx == EGL_NO_CONTEXT)
goto error;
if (android->g_use_hw_ctx)
{
android->g_egl_hw_ctx = eglCreateContext(android->g_egl_dpy,
android->g_egl_config, android->g_egl_ctx,
context_attributes);
RARCH_LOG("[Android/EGL]: Created shared context: %p.\n",
(void*)android->g_egl_hw_ctx);
if (android->g_egl_hw_ctx == EGL_NO_CONTEXT)
goto error;
}
android->g_egl_surf = eglCreateWindowSurface(android->g_egl_dpy,
android->g_egl_config, android_app->window, 0);
if (!android->g_egl_surf)
goto error;
if (!eglMakeCurrent(android->g_egl_dpy, android->g_egl_surf,
android->g_egl_surf, android->g_egl_ctx))
goto error;
driver->video_context_data = android;
return true;
error:
android_gfx_ctx_destroy_resources(android);
if (android)
free(android);
return false;
}
static void android_gfx_ctx_swap_buffers(void *data)
{
driver_t *driver = driver_get_ptr();
gfx_ctx_android_data_t *android = NULL;
android = (gfx_ctx_android_data_t*)driver->video_context_data;
(void)data;
if (android)
eglSwapBuffers(android->g_egl_dpy, android->g_egl_surf);
}
static void android_gfx_ctx_check_window(void *data, bool *quit,
bool *resize, unsigned *width, unsigned *height, unsigned frame_count)
{
unsigned new_width, new_height;
global_t *global = global_get_ptr();
(void)frame_count;
*quit = false;
android_gfx_ctx_get_video_size(data, &new_width, &new_height);
if (new_width != *width || new_height != *height)
{
*width = new_width;
*height = new_height;
*resize = true;
}
/* Check if we are exiting. */
if (global->system.shutdown)
*quit = true;
}
static void android_gfx_ctx_set_resize(void *data,
unsigned width, unsigned height)
{
(void)data;
(void)width;
(void)height;
}
static void android_gfx_ctx_update_window_title(void *data)
{
char buf[128], buf_fps[128];
settings_t *settings = config_get_ptr();
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 android_gfx_ctx_set_video_mode(void *data,
unsigned width, unsigned height,
bool fullscreen)
{
(void)data;
(void)width;
(void)height;
(void)fullscreen;
return true;
}
static void android_gfx_ctx_input_driver(void *data,
const input_driver_t **input, void **input_data)
{
void *androidinput = input_android.init();
(void)data;
*input = androidinput ? &input_android : NULL;
*input_data = androidinput;
}
static gfx_ctx_proc_t android_gfx_ctx_get_proc_address(
const char *symbol)
{
gfx_ctx_proc_t ret;
void *sym__ = NULL;
rarch_assert(sizeof(void*) == sizeof(void (*)(void)));
sym__ = eglGetProcAddress(symbol);
memcpy(&ret, &sym__, sizeof(void*));
return ret;
}
static bool android_gfx_ctx_bind_api(void *data,
enum gfx_ctx_api api, unsigned major, unsigned minor)
{
unsigned version = major * 100 + minor;
(void)data;
if (version > 300)
return false;
if (version < 300)
g_es3 = false;
else if (version == 300)
g_es3 = true;
return api == GFX_CTX_OPENGL_ES_API;
}
static bool android_gfx_ctx_has_focus(void *data)
{
(void)data;
return true;
}
static bool android_gfx_ctx_suppress_screensaver(void *data, bool enable)
{
(void)data;
(void)enable;
return false;
}
static bool android_gfx_ctx_has_windowed(void *data)
{
(void)data;
return false;
}
static void android_gfx_ctx_bind_hw_render(void *data, bool enable)
{
driver_t *driver = driver_get_ptr();
gfx_ctx_android_data_t *android = NULL;
android = (gfx_ctx_android_data_t*)driver->video_context_data;
(void)data;
if (!android)
return;
android->g_use_hw_ctx = enable;
if (!android->g_egl_dpy)
return;
if (!android->g_egl_surf)
return;
eglMakeCurrent(android->g_egl_dpy, android->g_egl_surf,
android->g_egl_surf, enable ?
android->g_egl_hw_ctx : android->g_egl_ctx);
}
static int system_property_get_density(char *value)
{
FILE *pipe;
int length = 0;
char buffer[PATH_MAX_LENGTH];
char cmd[PATH_MAX_LENGTH];
char *curpos = NULL;
snprintf(cmd, sizeof(cmd), "wm density");
pipe = popen(cmd, "r");
if (!pipe)
{
RARCH_ERR("Could not create pipe.\n");
return 0;
}
curpos = value;
while (!feof(pipe))
{
if (fgets(buffer, 128, pipe) != NULL)
{
int curlen = strlen(buffer);
memcpy(curpos, buffer, curlen);
curpos += curlen;
length += curlen;
}
}
*curpos = '\0';
pclose(pipe);
return length;
}
static void dpi_get_density(char *name, size_t sizeof_name)
{
system_property_get("ro.sf.lcd_density", name);
if (name[0] == '\0')
system_property_get_density(name);
}
static bool android_gfx_ctx_get_metrics(void *data,
enum display_metric_types type, float *value)
{
int dpi;
char density[PROP_VALUE_MAX];
dpi_get_density(density, sizeof(density));
switch (type)
{
case DISPLAY_METRIC_MM_WIDTH:
return false;
case DISPLAY_METRIC_MM_HEIGHT:
return false;
case DISPLAY_METRIC_DPI:
if (density[0] == '\0')
return false;
dpi = atoi(density);
*value = (float)dpi;
break;
case DISPLAY_METRIC_NONE:
default:
*value = 0;
return false;
}
return true;
}
const gfx_ctx_driver_t gfx_ctx_android = {
android_gfx_ctx_init,
android_gfx_ctx_destroy,
android_gfx_ctx_bind_api,
android_gfx_ctx_set_swap_interval,
android_gfx_ctx_set_video_mode,
android_gfx_ctx_get_video_size,
NULL, /* get_video_output_size */
NULL, /* get_video_output_prev */
NULL, /* get_video_output_next */
android_gfx_ctx_get_metrics,
NULL,
android_gfx_ctx_update_window_title,
android_gfx_ctx_check_window,
android_gfx_ctx_set_resize,
android_gfx_ctx_has_focus,
android_gfx_ctx_suppress_screensaver,
android_gfx_ctx_has_windowed,
android_gfx_ctx_swap_buffers,
android_gfx_ctx_input_driver,
android_gfx_ctx_get_proc_address,
NULL,
NULL,
NULL,
"android",
android_gfx_ctx_bind_hw_render,
};