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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
* Copyright (C) 2012-2015 - Michael Lelli
*
* 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 <libretro.h>
#include <glsym/glsym.h>
#include "../camera_driver.h"
#include "../../retroarch.h"
typedef struct android_camera
{
jmethodID onCameraInit;
jmethodID onCameraFree;
jmethodID onCameraPoll;
jmethodID onCameraStart;
jmethodID onCameraStop;
jmethodID onCameraSetTexture;
GLuint tex;
} androidcamera_t;
static void *android_camera_init(const char *device, uint64_t caps,
unsigned width, unsigned height)
{
jclass class;
androidcamera_t *androidcamera = NULL;
JNIEnv *env = NULL;
struct android_app *android_app = (struct android_app*)g_android;
(void)device;
(void)width;
(void)height;
if ((caps & (UINT64_C(1) << RETRO_CAMERA_BUFFER_OPENGL_TEXTURE)) == 0)
{
RARCH_ERR("[Camera] androidcamera returns OpenGL texture.\n");
return NULL;
}
androidcamera = (androidcamera_t*)calloc(1, sizeof(androidcamera_t));
if (!androidcamera)
return NULL;
env = jni_thread_getenv();
if (!env)
goto dealloc;
GET_OBJECT_CLASS(env, class, android_app->activity->clazz);
if (!class)
goto dealloc;
GET_METHOD_ID(env, androidcamera->onCameraInit, class,
"onCameraInit", "()V");
if (!androidcamera->onCameraInit)
goto dealloc;
GET_METHOD_ID(env, androidcamera->onCameraFree, class,
"onCameraFree", "()V");
if (!androidcamera->onCameraFree)
goto dealloc;
GET_METHOD_ID(env, androidcamera->onCameraSetTexture, class,
"onCameraSetTexture", "(I)V");
if (!androidcamera->onCameraSetTexture)
goto dealloc;
GET_METHOD_ID(env, androidcamera->onCameraStart, class,
"onCameraStart", "()V");
if (!androidcamera->onCameraStart)
goto dealloc;
GET_METHOD_ID(env, androidcamera->onCameraStop, class,
"onCameraStop", "()V");
if (!androidcamera->onCameraStop)
goto dealloc;
GET_METHOD_ID(env, androidcamera->onCameraPoll, class,
"onCameraPoll", "()Z");
if (!androidcamera->onCameraPoll)
goto dealloc;
CALL_VOID_METHOD(env, android_app->activity->clazz,
androidcamera->onCameraInit);
return androidcamera;
dealloc:
if (androidcamera)
free(androidcamera);
return NULL;
}
static void android_camera_free(void *data)
{
struct android_app *android_app = (struct android_app*)g_android;
androidcamera_t *androidcamera = (androidcamera_t*)data;
JNIEnv *env = jni_thread_getenv();
if (!env)
return;
CALL_VOID_METHOD(env, android_app->activity->clazz,
androidcamera->onCameraFree);
free(androidcamera);
}
static bool android_camera_start(void *data)
{
struct android_app *android_app = (struct android_app*)g_android;
androidcamera_t *androidcamera = (androidcamera_t*)data;
JNIEnv *env = jni_thread_getenv();
if (!env)
return NULL;
glGenTextures(1, &androidcamera->tex);
glBindTexture(GL_TEXTURE_EXTERNAL_OES, androidcamera->tex);
glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S,
GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_EDGE);
CALL_VOID_METHOD_PARAM(env, android_app->activity->clazz,
androidcamera->onCameraSetTexture, (int) androidcamera->tex);
CALL_VOID_METHOD(env, android_app->activity->clazz,
androidcamera->onCameraStart);
return true;
}
static void android_camera_stop(void *data)
{
struct android_app *android_app = (struct android_app*)g_android;
androidcamera_t *androidcamera = (androidcamera_t*)data;
JNIEnv *env = jni_thread_getenv();
if (!env)
return;
CALL_VOID_METHOD(env, android_app->activity->clazz,
androidcamera->onCameraStop);
if (androidcamera->tex)
video_driver_texture_unload((uintptr_t*)&androidcamera->tex);
}
static bool android_camera_poll(void *data,
retro_camera_frame_raw_framebuffer_t frame_raw_cb,
retro_camera_frame_opengl_texture_t frame_gl_cb)
{
jboolean newFrame;
struct android_app *android_app = (struct android_app*)g_android;
androidcamera_t *androidcamera = (androidcamera_t*)data;
JNIEnv *env = jni_thread_getenv();
if (!env)
return NULL;
(void)frame_raw_cb;
CALL_BOOLEAN_METHOD(env, newFrame, android_app->activity->clazz,
androidcamera->onCameraPoll);
if (newFrame)
{
/* FIXME: Identity for now. Use proper texture matrix as
* returned by Android Camera. */
static const float affine[] = {
1.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 1.0f
};
if (frame_gl_cb)
frame_gl_cb(androidcamera->tex,
GL_TEXTURE_EXTERNAL_OES,
affine);
return true;
}
return false;
}
camera_driver_t camera_android = {
android_camera_init,
android_camera_free,
android_camera_start,
android_camera_stop,
android_camera_poll,
"android",
};
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