135 lines
5.4 KiB
C
135 lines
5.4 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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* @author elias_naur <elias_naur@users.sourceforge.net>
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* @version $Revision$
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*/
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#include <jni.h>
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#include "org_lwjgl_opengl_WindowsContextImplementation.h"
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#include "context.h"
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#include "common_tools.h"
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typedef struct {
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WGLExtensions extensions;
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HGLRC context;
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} WindowsContext;
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JNIEXPORT jobject JNICALL Java_org_lwjgl_opengl_WindowsContextImplementation_nCreate
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(JNIEnv *env, jclass clazz, jobject peer_info_handle, jobject shared_context_handle) {
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WindowsPeerInfo *peer_info;
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WindowsContext *shared_context_info;
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WindowsContext *context_info;
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HGLRC context;
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HGLRC shared_context = NULL;
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HDC saved_hdc;
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HGLRC saved_context;
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WGLExtensions extensions;
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jobject context_handle = newJavaManagedByteBuffer(env, sizeof(WindowsContext));
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if (context_handle == NULL) {
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throwException(env, "Could not create handle buffer");
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return NULL;
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}
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peer_info = (WindowsPeerInfo *)(*env)->GetDirectBufferAddress(env, peer_info_handle);
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context = wglCreateContext(peer_info->format_hdc);
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if (context == NULL) {
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throwException(env, "Could not create context");
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return NULL;
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}
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if (shared_context_handle != NULL) {
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shared_context_info = (WindowsContext *)(*env)->GetDirectBufferAddress(env, shared_context_handle);
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shared_context = shared_context_info->context;
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if (!wglShareLists(shared_context, context)) {
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wglDeleteContext(context);
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throwException(env, "Could not share contexts");
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return NULL;
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}
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}
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saved_hdc = wglGetCurrentDC();
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saved_context = wglGetCurrentContext();
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if (!wglMakeCurrent(peer_info->format_hdc, context)) {
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wglMakeCurrent(saved_hdc, saved_context);
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wglDeleteContext(context);
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throwException(env, "Could not make context current");
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return NULL;
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}
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extgl_InitWGL(&extensions);
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if (!wglMakeCurrent(saved_hdc, saved_context))
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printfDebugJava(env, "Failed to restore current context");
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context_info = (WindowsContext *)(*env)->GetDirectBufferAddress(env, context_handle);
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context_info->context = context;
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context_info->extensions = extensions;
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return context_handle;
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}
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_WindowsContextImplementation_nSwapBuffers
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(JNIEnv *env, jclass clazz, jobject peer_info_handle) {
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WindowsPeerInfo *peer_info = (WindowsPeerInfo *)(*env)->GetDirectBufferAddress(env, peer_info_handle);
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SwapBuffers(peer_info->drawable_hdc);
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}
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_WindowsContextImplementation_nReleaseCurrentContext
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(JNIEnv *env, jclass clazz) {
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wglMakeCurrent(NULL, NULL);
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}
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_WindowsContextImplementation_nMakeCurrent
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(JNIEnv *env, jclass clazz, jobject peer_info_handle, jobject context_handle) {
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WindowsContext *context_info = (WindowsContext *)(*env)->GetDirectBufferAddress(env, context_handle);
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WindowsPeerInfo *peer_info = (WindowsPeerInfo *)(*env)->GetDirectBufferAddress(env, peer_info_handle);
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if (!wglMakeCurrent(peer_info->drawable_hdc, context_info->context))
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throwException(env, "Could not make context current");
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}
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_opengl_WindowsContextImplementation_nIsCurrent
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(JNIEnv *env, jclass clazz, jobject context_handle) {
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WindowsContext *context_info = (WindowsContext *)(*env)->GetDirectBufferAddress(env, context_handle);
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return wglGetCurrentContext() == context_info->context;
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}
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_WindowsContextImplementation_nSetSwapInterval
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(JNIEnv *env, jclass clazz, jobject context_handle, jint value) {
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WindowsContext *context_info = (WindowsContext *)(*env)->GetDirectBufferAddress(env, context_handle);
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if (context_info->extensions.WGL_EXT_swap_control) {
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context_info->extensions.wglSwapIntervalEXT(value);
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}
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}
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_WindowsContextImplementation_nDestroy
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(JNIEnv *env, jclass clazz, jobject context_handle) {
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WindowsContext *context_info = (WindowsContext *)(*env)->GetDirectBufferAddress(env, context_handle);
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wglDeleteContext(context_info->context);
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}
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