213 lines
7.7 KiB
C
213 lines
7.7 KiB
C
/*
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* Copyright (c) 2002-2008 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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* Windows Pbuffer.
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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 <stdlib.h>
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#include "org_lwjgl_opengl_WindowsDisplay.h"
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#include "org_lwjgl_opengl_Pbuffer.h"
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#include "context.h"
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#include "extgl.h"
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#include "extgl_wgl.h"
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#include "common_tools.h"
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static bool isPbufferSupported(WGLExtensions *extensions) {
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return extensions->WGL_ARB_pixel_format && extensions->WGL_ARB_pbuffer;
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}
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static bool getExtensions(JNIEnv *env, WGLExtensions *extensions, jobject pixel_format, jobject pixelFormatCaps) {
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int origin_x = 0; int origin_y = 0;
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HWND dummy_hwnd;
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HDC dummy_hdc;
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HGLRC dummy_context;
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HDC saved_hdc;
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HGLRC saved_context;
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int pixel_format_id;
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dummy_hwnd = createDummyWindow(origin_x, origin_y);
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if (dummy_hwnd == NULL) {
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throwException(env, "Could not create dummy window");
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return false;
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}
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dummy_hdc = GetDC(dummy_hwnd);
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pixel_format_id = findPixelFormatOnDC(env, dummy_hdc, origin_x, origin_y, pixel_format, pixelFormatCaps, false, true, false, false);
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if (pixel_format_id == -1) {
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closeWindow(&dummy_hwnd, &dummy_hdc);
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return false;
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}
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if (!applyPixelFormat(env, dummy_hdc, pixel_format_id)) {
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closeWindow(&dummy_hwnd, &dummy_hdc);
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return false;
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}
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dummy_context = wglCreateContext(dummy_hdc);
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if (dummy_context == NULL) {
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closeWindow(&dummy_hwnd, &dummy_hdc);
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throwException(env, "Could not create dummy context");
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return false;
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}
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saved_hdc = wglGetCurrentDC();
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saved_context = wglGetCurrentContext();
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if (!wglMakeCurrent(dummy_hdc, dummy_context)) {
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wglMakeCurrent(saved_hdc, saved_context);
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closeWindow(&dummy_hwnd, &dummy_hdc);
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wglDeleteContext(dummy_context);
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throwException(env, "Could not make dummy context current");
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return false;
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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, "ERROR: Could not restore current context");
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closeWindow(&dummy_hwnd, &dummy_hdc);
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wglDeleteContext(dummy_context);
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return true;
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}
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JNIEXPORT jint JNICALL Java_org_lwjgl_opengl_WindowsDisplay_nGetPbufferCapabilities
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(JNIEnv *env, jobject self, jobject pixel_format)
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{
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int caps = 0;
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WGLExtensions extensions;
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if (!getExtensions(env, &extensions, pixel_format, NULL))
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return 0;
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if (isPbufferSupported(&extensions))
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caps |= org_lwjgl_opengl_Pbuffer_PBUFFER_SUPPORTED;
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if (extensions.WGL_ARB_render_texture)
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caps |= org_lwjgl_opengl_Pbuffer_RENDER_TEXTURE_SUPPORTED;
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if (extensions.WGL_NV_render_texture_rectangle)
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caps |= org_lwjgl_opengl_Pbuffer_RENDER_TEXTURE_RECTANGLE_SUPPORTED;
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if (extensions.WGL_NV_render_depth_texture)
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caps |= org_lwjgl_opengl_Pbuffer_RENDER_DEPTH_TEXTURE_SUPPORTED;
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return caps;
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}
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_WindowsPbufferPeerInfo_nCreate
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(JNIEnv *env, jobject self, jobject peer_info_handle,
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jint width, jint height, jobject pixel_format,
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jobject pixelFormatCaps, jobject pBufferAttribs)
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{
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int origin_x = 0; int origin_y = 0;
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HWND dummy_hwnd;
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HDC dummy_hdc;
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HPBUFFERARB Pbuffer;
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HDC Pbuffer_dc;
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WGLExtensions extensions;
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const int *pBufferAttribs_ptr;
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WindowsPeerInfo *peer_info = (WindowsPeerInfo *)(*env)->GetDirectBufferAddress(env, peer_info_handle);
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int pixel_format_id;
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if ( pBufferAttribs != NULL ) {
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pBufferAttribs_ptr = (const int *)(*env)->GetDirectBufferAddress(env, pBufferAttribs);
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} else {
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pBufferAttribs_ptr = NULL;
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}
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if (!getExtensions(env, &extensions, pixel_format, pixelFormatCaps))
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return;
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dummy_hwnd = createDummyWindow(origin_x, origin_y);
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if (dummy_hwnd == NULL) {
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throwException(env, "Could not create dummy window");
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return;
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}
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dummy_hdc = GetDC(dummy_hwnd);
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pixel_format_id = findPixelFormatOnDC(env, dummy_hdc, origin_x, origin_y, pixel_format, pixelFormatCaps, false, false, true, false);
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if (pixel_format_id == -1) {
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closeWindow(&dummy_hwnd, &dummy_hdc);
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return;
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}
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Pbuffer = extensions.wglCreatePbufferARB(dummy_hdc, pixel_format_id, width, height, pBufferAttribs_ptr);
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closeWindow(&dummy_hwnd, &dummy_hdc);
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if (Pbuffer == NULL) {
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throwException(env, "Could not create Pbuffer");
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return;
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}
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Pbuffer_dc = extensions.wglGetPbufferDCARB(Pbuffer);
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if (Pbuffer_dc == NULL) {
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extensions.wglDestroyPbufferARB(Pbuffer);
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throwException(env, "Could not get Pbuffer DC");
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return;
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}
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peer_info->extensions = extensions;
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peer_info->u.pbuffer = Pbuffer;
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peer_info->drawable_hdc = Pbuffer_dc;
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}
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_WindowsPbufferPeerInfo_nDestroy
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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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peer_info->extensions.wglReleasePbufferDCARB(peer_info->u.pbuffer, peer_info->drawable_hdc);
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peer_info->extensions.wglDestroyPbufferARB(peer_info->u.pbuffer);
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}
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_opengl_WindowsPbufferPeerInfo_nIsBufferLost
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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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BOOL buffer_lost;
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peer_info->extensions.wglQueryPbufferARB(peer_info->u.pbuffer, WGL_PBUFFER_LOST_ARB, &buffer_lost);
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return buffer_lost ? JNI_TRUE : JNI_FALSE;
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}
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_WindowsPbufferPeerInfo_nSetPbufferAttrib
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(JNIEnv *env, jclass clazz, jobject peer_info_handle, jint attrib, jint value) {
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WindowsPeerInfo *peer_info = (WindowsPeerInfo *)(*env)->GetDirectBufferAddress(env, peer_info_handle);
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int attribs[3];
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attribs[0] = attrib;
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attribs[1] = value;
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attribs[2] = 0;
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peer_info->extensions.wglSetPbufferAttribARB(peer_info->u.pbuffer, attribs);
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}
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_WindowsPbufferPeerInfo_nBindTexImageToPbuffer
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(JNIEnv *env, jclass clazz, jobject peer_info_handle, jint buffer) {
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WindowsPeerInfo *peer_info = (WindowsPeerInfo *)(*env)->GetDirectBufferAddress(env, peer_info_handle);
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peer_info->extensions.wglBindTexImageARB(peer_info->u.pbuffer, buffer);
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}
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_WindowsPbufferPeerInfo_nReleaseTexImageFromPbuffer
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(JNIEnv *env, jclass clazz, jobject peer_info_handle, jint buffer) {
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WindowsPeerInfo *peer_info = (WindowsPeerInfo *)(*env)->GetDirectBufferAddress(env, peer_info_handle);
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peer_info->extensions.wglReleaseTexImageARB(peer_info->u.pbuffer, buffer);
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}
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