/**
* Copyright 2019 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
#include "drm_gbm.h"
#include <unistd.h>
#include <termios.h>
static jmethodID sizeChangedID = NULL;
static jmethodID positionChangedID = NULL;
static jmethodID visibleChangedID = NULL;
static jmethodID windowDestroyNotifyID = NULL;
/**
* Display
*/
static int saved_stdin;
static void setNullStdin()
{
saved_stdin = dup(fileno(stdin));
if( 0 > saved_stdin ) {
ERR_PRINT("setNullStdin dup failed: %d %s\n", saved_stdin, strerror(errno));
return;
}
freopen("/dev/null", "r", stdin); // fake null stdin, closes stdin
DBG_PRINT("setNullStdin done\n");
}
static void restoreStdin()
{
int null_stdin = dup(fileno(stdin)); // copy to close after restore
if( 0 > null_stdin ) {
ERR_PRINT("restoreStdin.1 dup failed: %d %s\n", null_stdin, strerror(errno));
return;
}
// restore
int restored_stdin = dup2(saved_stdin, fileno(stdin));
if( 0 > restored_stdin ) {
ERR_PRINT("restoreStdin.2 dup2 failed: %d %s\n", restored_stdin, strerror(errno));
return;
}
saved_stdin = -1;
// cleanup stdin before it gets executed on the console
tcdrain(restored_stdin);
tcflush(restored_stdin, TCIFLUSH);
close(null_stdin); // close fake null stdin
close(restored_stdin);
DBG_PRINT("restoreStdin done\n");
}
JNIEXPORT jboolean JNICALL Java_jogamp_newt_driver_egl_gbm_DisplayDriver_initIDs
(JNIEnv *env, jclass clazz)
{
setNullStdin();
DBG_PRINT( "EGL_GBM.Display initIDs ok\n" );
return JNI_TRUE;
}
JNIEXPORT void JNICALL Java_jogamp_newt_driver_egl_gbm_DisplayDriver_Shutdown0
(JNIEnv *env, jclass clazz)
{
restoreStdin();
DBG_PRINT( "EGL_GBM.Display shutdown ok\n" );
}
JNIEXPORT void JNICALL Java_jogamp_newt_driver_egl_gbm_DisplayDriver_DispatchMessages0
(JNIEnv *env, jclass clazz)
{
}
JNIEXPORT jlong JNICALL Java_jogamp_newt_driver_egl_gbm_DisplayDriver_CreatePointerIcon0
(JNIEnv *env, jclass clazz, jlong jgbmDevice, jobject jpixels, jint pixels_byte_offset, jboolean pixels_is_direct,
jint width, jint height, jint hotX, jint hotY)
{
void *pixels0 = NULL;
const uint32_t *pixels = NULL;
struct gbm_device * gbmDevice = (struct gbm_device *) (intptr_t) jgbmDevice;
struct gbm_bo *bo = NULL;
uint32_t bo_handle;
uint32_t buf[64 * 64];
int i, j;
DBG_PRINT("cursor.cstr %dx%d %d/%d\n", width, height, hotX, hotY);
if ( NULL == jpixels ) {
ERR_PRINT("CreateCursor: null icon pixels\n");
return 0;
}
if( 0 >= width || width > 64 || 0 >= height || height > 64 ) {
ERR_PRINT("CreateCursor: icon must be of size [1..64] x [1..64]\n");
return 0;
}
{
pixels0 = ( JNI_TRUE == pixels_is_direct ?
(*env)->GetDirectBufferAddress(env, jpixels) :
(*env)->GetPrimitiveArrayCritical(env, jpixels, NULL) );
pixels = (uint32_t *) ( ((char *) pixels0) + pixels_byte_offset );
}
bo = gbm_bo_create(gbmDevice, 64, 64,
GBM_FORMAT_ARGB8888,
// GBM_FORMAT_BGRA8888,
GBM_BO_USE_CURSOR_64X64 | GBM_BO_USE_WRITE);
if( NULL == bo ) {
ERR_PRINT("cursor.cstr gbm_bo_create failed\n");
} else {
// align user data width x height -> 64 x 64
memset(buf, 0, sizeof(buf)); // cleanup
for(int i=0; i<height; i++) {
memcpy(buf + i * 64, pixels + i * width, width * 4);
}
if ( gbm_bo_write(bo, buf, sizeof(buf)) < 0 ) {
ERR_PRINT("cursor.cstr gbm_bo_write failed\n");
gbm_bo_destroy(bo);
bo = NULL;
}
}
if ( JNI_FALSE == pixels_is_direct && NULL != jpixels ) {
(*env)->ReleasePrimitiveArrayCritical(env, jpixels, pixels0, JNI_ABORT);
}
return (jlong) (intptr_t) bo;
}
JNIEXPORT void JNICALL Java_jogamp_newt_driver_egl_gbm_DisplayDriver_DestroyPointerIcon0
(JNIEnv *env, jclass clazz, jlong jcursor)
{
struct gbm_bo *bo = (struct gbm_bo *) (intptr_t) jcursor;
if ( NULL == bo ) {
ERR_PRINT("DestroyCursor: null cursor\n");
return;
}
gbm_bo_destroy(bo);
}
JNIEXPORT jboolean JNICALL Java_jogamp_newt_driver_egl_gbm_DisplayDriver_SetPointerIcon0
(JNIEnv *env, jobject obj, jint drmFd, jint jcrtc_id, jlong jcursor, jboolean enable, jint hotX, jint hotY, jint x, jint y)
{
uint32_t crtc_id = (uint32_t)jcrtc_id;
struct gbm_bo *bo = (struct gbm_bo *) (intptr_t) jcursor;
uint32_t bo_handle = gbm_bo_get_handle(bo).u32;
int ret;
DBG_PRINT( "EGL_GBM.Screen SetPointerIcon0.0: bo %p, enable %d, hot %d/%d, pos %d/%d\n", bo, enable, hotX, hotY, x, y);
if( enable ) {
ret = drmModeSetCursor2(drmFd, crtc_id, bo_handle, 64, 64, hotX, hotY);
if( ret ) {
ERR_PRINT("SetCursor enable failed: %d %s\n", ret, strerror(errno));
} else {
ret = drmModeMoveCursor(drmFd, crtc_id, x, y);
if( ret ) {
ERR_PRINT("SetCursor move failed: %d %s\n", ret, strerror(errno));
}
}
} else {
ret = drmModeSetCursor2(drmFd, crtc_id, 0, 0, 0, 0, 0);
if( ret ) {
ERR_PRINT("SetCursor disable failed: %d %s\n", ret, strerror(errno));
}
}
DBG_PRINT( "EGL_GBM.Screen SetPointerIcon0.X: bo %p, enable %d, hot %d/%d, pos %d/%d\n", bo, enable, hotX, hotY, x, y);
return ret ? JNI_FALSE : JNI_TRUE;
}
JNIEXPORT jboolean JNICALL Java_jogamp_newt_driver_egl_gbm_DisplayDriver_MovePointerIcon0
(JNIEnv *env, jobject obj, jint drmFd, jint jcrtc_id, jint x, jint y)
{
uint32_t crtc_id = (uint32_t)jcrtc_id;
int ret;
ret = drmModeMoveCursor(drmFd, crtc_id, x, y);
if( ret ) {
ERR_PRINT("cursor drmModeMoveCursor failed: %d %s\n", ret, strerror(errno));
return JNI_FALSE;
}
return JNI_TRUE;
}
/**
* Screen
*/
JNIEXPORT jboolean JNICALL Java_jogamp_newt_driver_egl_gbm_ScreenDriver_initIDs
(JNIEnv *env, jclass clazz)
{
DBG_PRINT( "EGL_GBM.Screen initIDs ok\n" );
return JNI_TRUE;
}
/**
* Window
*/
JNIEXPORT jboolean JNICALL Java_jogamp_newt_driver_egl_gbm_WindowDriver_initIDs
(JNIEnv *env, jclass clazz)
{
sizeChangedID = (*env)->GetMethodID(env, clazz, "sizeChanged", "(ZZIIZ)Z");
positionChangedID = (*env)->GetMethodID(env, clazz, "positionChanged", "(ZZII)Z");
visibleChangedID = (*env)->GetMethodID(env, clazz, "visibleChanged", "(Z)V");
windowDestroyNotifyID = (*env)->GetMethodID(env, clazz, "windowDestroyNotify", "(Z)Z");
if (sizeChangedID == NULL ||
positionChangedID == NULL ||
visibleChangedID == NULL ||
windowDestroyNotifyID == NULL) {
DBG_PRINT( "initIDs failed\n" );
return JNI_FALSE;
}
DBG_PRINT( "EGL_GBM.Window initIDs ok\n" );
return JNI_TRUE;
}