Initial creation of j3d-core-utils sources in CVS repository

git-svn-id: https://svn.java.net/svn/j3d-core~svn/trunk@7 ba19aa83-45c5-6ac9-afd3-db810772062c

1 files changed, 70 insertions, 0 deletions

diff --git a/src/native/ogl/CompressedGeometryRetained.c b/src/native/ogl/CompressedGeometryRetained.c
new file mode 100644
index 0000000..36ca164
--- /dev/null
+++ b/src/native/ogl/CompressedGeometryRetained.c
@@ -0,0 +1,70 @@
+/*
+ * $RCSfile$
+ *
+ * Copyright (c) 2004 Sun Microsystems, Inc. All rights reserved.
+ *
+ * Use is subject to license terms.
+ *
+ * $Revision$
+ * $Date$
+ * $State$
+ */
+
+#include <stdio.h>
+#include <jni.h>
+#include "gldefs.h"
+
+#ifdef SOLARIS
+#pragma weak glDrawCompressedGeomSUNX
+
+#else
+static void glDrawCompressedGeomSUNX(GLint size, GLubyte *data) {
+    fprintf(stderr, "Warning: glDrawCompressedGeomSUNX() not supported\n") ;
+}
+#endif /* SOLARIS */
+
+
+JNIEXPORT
+void JNICALL Java_javax_media_j3d_CompressedGeometryRetained_execute
+    (JNIEnv *env, jobject obj, jlong ctxInfo, jint version, jint bufferType,
+     jint bufferContents, jint renderFlags, jint offset, jint size,
+     jbyteArray geometry)
+{
+    GraphicsContextPropertiesInfo *ctxProperties = (GraphicsContextPropertiesInfo *)ctxInfo; 
+    jlong ctx = ctxProperties->context;
+
+    jbyte *cg = (*env)->GetPrimitiveArrayCritical(env, geometry, 0) ;
+
+    /* ignore offset and pass header at 0 along with cg data */
+    if(ctxProperties->geometry_compression_sunx)
+	glDrawCompressedGeomSUNX((GLint)(size + 48), (GLubyte *)cg) ;
+    
+    (*env)->ReleasePrimitiveArrayCritical(env, geometry, cg, 0) ;
+}
+
+
+JNIEXPORT
+jboolean JNICALL Java_javax_media_j3d_CompressedGeometryRetained_decompressByRef
+    (JNIEnv *env, jobject obj, jlong ctxInfo)
+{
+    return JNI_FALSE ;
+}
+
+JNIEXPORT
+jboolean JNICALL Java_javax_media_j3d_CompressedGeometryRetained_decompressHW
+    (JNIEnv *env, jobject obj, jlong ctxInfo, jint majorVersion, jint minorVersion)
+{
+    /*
+     * Return true if hardware decompression is supported for the given
+     * version number of the compressed geometry.
+     */
+
+    GraphicsContextPropertiesInfo *ctxProperties = (GraphicsContextPropertiesInfo *)ctxInfo; 
+    jlong ctx = ctxProperties->context;
+
+    return
+	(ctxProperties->geometry_compression_accelerated == 1) &&
+	((majorVersion < ctxProperties->geometry_compression_accelerated_major_version) ||
+	 ((majorVersion == ctxProperties->geometry_compression_accelerated_major_version) &&
+	  (minorVersion <= ctxProperties->geometry_compression_accelerated_minor_version))) ;
+}