93 lines
3.4 KiB
C++
93 lines
3.4 KiB
C++
/*
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* Copyright (c) 2002-2004 LWJGL Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'LWJGL' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* $Id$
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*
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* Linux cursor handling.
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*
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* @author elias_naur <elias_naur@users.sourceforge.net>
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* @version $Revision$
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*/
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#include "org_lwjgl_input_Cursor.h"
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#include "extxcursor.h"
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#include "Window.h"
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#include "common_tools.h"
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/*
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* Class: org_lwjgl_input_Cursor
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* Method: nCreateCursor
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* Signature: (IIIIIII)I
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*/
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JNIEXPORT jlong JNICALL Java_org_lwjgl_input_Cursor_nCreateCursor
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(JNIEnv *env, jclass clazz, jint width, jint height, jint x_hotspot, jint y_hotspot, jint num_images, jobject image_buffer, jint images_offset, jobject delay_buffer, jint delays_offset)
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{
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Display *disp = incDisplay(env);
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if (disp == NULL)
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return 0;
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const int *delays = NULL;
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if (delay_buffer != NULL)
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delays = (const int *)env->GetDirectBufferAddress(delay_buffer) + delays_offset;
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XcursorPixel *pixels = (XcursorPixel *)env->GetDirectBufferAddress(image_buffer) + images_offset;
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int stride = width*height;
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XcursorImages *cursor_images = XcursorImagesCreate(num_images);
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if (cursor_images == NULL)
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throwException(env, "Could not allocate cursor.");
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cursor_images->nimage = num_images;
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for (int i = 0; i < num_images; i++) {
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XcursorImage *cursor_image = XcursorImageCreate(width, height);
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cursor_image->xhot = x_hotspot;
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cursor_image->yhot = y_hotspot;
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cursor_image->pixels = &(pixels[stride*i]);
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if (num_images > 1)
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cursor_image->delay = delays[i];
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cursor_images->images[i] = cursor_image;
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}
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Cursor cursor = XcursorImagesLoadCursor(disp, cursor_images);
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XcursorImagesDestroy(cursor_images);
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return (jlong)cursor;
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}
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/*
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* Class: org_lwjgl_input_Cursor
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* Method: nDestroyCursor
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* Signature: (I)V
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_input_Cursor_nDestroyCursor
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(JNIEnv *env, jclass clazz, jlong cursor_handle)
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{
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Cursor cursor = (Cursor)cursor_handle;
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XFreeCursor(getDisplay(), cursor);
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decDisplay();
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}
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