2003-05-20 08:20:13 -04:00
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#include <stdlib.h>
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#include "org_lwjgl_opengl_Pbuffer.h"
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#include "Window.h"
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#include "extgl.h"
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typedef struct _PbufferInfo {
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HGLRC Pbuffer_context;
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HPBUFFERARB Pbuffer;
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HDC Pbuffer_dc;
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} PbufferInfo;
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/*
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* Class: org_lwjgl_opengl_Pbuffer
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* Method: isPbufferSupported
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* Signature: ()Z
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*/
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JNIEXPORT jint JNICALL Java_org_lwjgl_opengl_Pbuffer_getPbufferCaps
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(JNIEnv *env, jclass clazz)
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{
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2003-09-26 09:59:50 -04:00
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return extgl_Extensions.WGL_ARB_pbuffer ? org_lwjgl_opengl_Pbuffer_PBUFFER_SUPPORTED : 0;
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2003-05-20 08:20:13 -04:00
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}
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/*
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* Class: org_lwjgl_opengl_Pbuffer
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* Method: nCreate
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* Signature: (IIII)I
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*/
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JNIEXPORT jint JNICALL Java_org_lwjgl_opengl_Pbuffer_nCreate
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(JNIEnv *env, jclass clazz, jint width, jint height, jint bpp, jint alpha, jint depth, jint stencil)
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{
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int iPixelFormat;
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unsigned int num_formats_returned;
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int attrib_list[] = {WGL_DRAW_TO_PBUFFER_ARB, TRUE,
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WGL_ACCELERATION_ARB, WGL_FULL_ACCELERATION_ARB,
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WGL_PIXEL_TYPE_ARB, WGL_TYPE_RGBA_ARB,
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WGL_DOUBLE_BUFFER_ARB, FALSE,
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WGL_SUPPORT_OPENGL_ARB, TRUE,
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WGL_COLOR_BITS_ARB, bpp,
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WGL_ALPHA_BITS_ARB, alpha,
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WGL_DEPTH_BITS_ARB, depth,
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WGL_STENCIL_BITS_ARB, stencil,
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0};
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BOOL result = wglChoosePixelFormatARB(hdc, attrib_list, NULL, 1, &iPixelFormat, &num_formats_returned);
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if (result == FALSE) {
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throwException(env, "Could not choose pixel formats.");
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return (jint)NULL;
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}
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HPBUFFERARB Pbuffer = wglCreatePbufferARB(hdc, iPixelFormat, width, height, NULL);
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if (Pbuffer == NULL) {
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throwException(env, "Could not create Pbuffer.");
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return (jint)NULL;
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}
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HDC Pbuffer_dc = wglGetPbufferDCARB(Pbuffer);
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if (Pbuffer_dc == NULL) {
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wglDestroyPbufferARB(Pbuffer);
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throwException(env, "Could not get Pbuffer dc.");
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return (jint)NULL;
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}
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// Create a rendering context
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HGLRC Pbuffer_context = wglCreateContext(Pbuffer_dc);
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if (Pbuffer_context == NULL) {
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wglReleasePbufferDCARB(Pbuffer, Pbuffer_dc);
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wglDestroyPbufferARB(Pbuffer);
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throwException(env, "Failed to create Pbuffer rendering context");
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return (jint)NULL;
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}
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if (!wglShareLists(hglrc, Pbuffer_context)) {
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wglDeleteContext(Pbuffer_context);
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wglReleasePbufferDCARB(Pbuffer, Pbuffer_dc);
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wglDestroyPbufferARB(Pbuffer);
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throwException(env, "Could not share buffer context.");
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return (jint)NULL;
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}
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PbufferInfo *Pbuffer_info = (PbufferInfo *)malloc(sizeof(PbufferInfo));
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Pbuffer_info->Pbuffer = Pbuffer;
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Pbuffer_info->Pbuffer_context = Pbuffer_context;
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Pbuffer_info->Pbuffer_dc = Pbuffer_dc;
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return (jint)Pbuffer_info;
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}
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/*
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* Class: org_lwjgl_opengl_Pbuffer
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* Method: nReleaseContext
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* Signature: ()V
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_Pbuffer_nReleaseContext
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(JNIEnv *env, jclass clazz)
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{
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wglMakeCurrent(hdc, hglrc);
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}
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/*
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* Class: org_lwjgl_opengl_Pbuffer
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* Method: nIsBufferLost
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* Signature: (I)Z
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*/
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_opengl_Pbuffer_nIsBufferLost
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(JNIEnv *env, jclass clazz, jint handle)
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{
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PbufferInfo *Pbuffer_info = (PbufferInfo *)handle;
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BOOL buffer_lost;
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wglQueryPbufferARB(Pbuffer_info->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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/*
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* Class: org_lwjgl_opengl_Pbuffer
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* Method: nMakeCurrent
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* Signature: (I)V
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_Pbuffer_nMakeCurrent
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(JNIEnv *env, jclass clazz, jint handle)
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{
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PbufferInfo *Pbuffer_info = (PbufferInfo *)handle;
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wglMakeCurrent(Pbuffer_info->Pbuffer_dc, Pbuffer_info->Pbuffer_context);
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}
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/*
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* Class: org_lwjgl_opengl_Pbuffer
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* Method: nDestroyGL
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* Signature: (I)V
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_Pbuffer_nDestroy
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(JNIEnv *env, jclass clazz, jint handle)
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{
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PbufferInfo *Pbuffer_info = (PbufferInfo *)handle;
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wglDeleteContext(Pbuffer_info->Pbuffer_context);
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wglReleasePbufferDCARB(Pbuffer_info->Pbuffer, Pbuffer_info->Pbuffer_dc);
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wglDestroyPbufferARB(Pbuffer_info->Pbuffer);
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free(Pbuffer_info);
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}
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