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/*
* $RCSfile$
*
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
*
* Use is subject to license terms.
*
* $Revision$
* $Date$
* $State$
*/
#include <stdio.h>
#include <jni.h>
#include "gldefs.h"
extern void throwAssert(JNIEnv *env, char *str);
JNIEXPORT
void JNICALL Java_javax_media_j3d_GraphicsContext3D_readRasterNative(
JNIEnv *env, jobject obj, jlong ctxInfo,
jint type, jint xOffset, jint yOffset,
jint wRaster, jint hRaster, jint hCanvas,
jint format, jobject image, jobject depth, jobject ctx)
{
JNIEnv table;
int yAdjusted;
jclass ctx_class;
GLenum gltype;
GraphicsContextPropertiesInfo *ctxProperties = (GraphicsContextPropertiesInfo *)ctxInfo;
jlong d3dctx = ctxProperties->context;
table = *env;
glPixelStorei(GL_PACK_ROW_LENGTH, wRaster);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
yAdjusted = hCanvas - hRaster - yOffset;
ctx_class = (jclass) (*(table->GetObjectClass))(env, ctx);
if ((type & javax_media_j3d_Raster_RASTER_COLOR) != 0) {
jclass image_class;
jfieldID byteData_field;
jarray byteData_array;
jbyte *byteData;
byteData_field = (jfieldID)(*(table->GetFieldID))(env,
ctx_class, "byteBuffer","[B");
byteData_array = (jarray)(*(table->GetObjectField))(env, ctx,
byteData_field);
image_class = (jclass) (*(table->GetObjectClass))(env, image);
if (image_class == NULL) {
return;
}
switch (format) {
case FORMAT_BYTE_RGBA:
gltype = GL_RGBA;
break;
case FORMAT_BYTE_RGB:
gltype = GL_RGB;
break;
case FORMAT_BYTE_ABGR:
if (ctxProperties->abgr_ext) { /* If its zero, should never come here! */
gltype = GL_ABGR_EXT;
}
break;
case FORMAT_BYTE_BGR:
if (ctxProperties->bgr_ext) { /* If its zero, should never come here! */
gltype = ctxProperties->bgr_ext_enum;
}
break;
case FORMAT_BYTE_LA:
gltype = GL_LUMINANCE_ALPHA;
break;
case FORMAT_BYTE_GRAY:
case FORMAT_USHORT_GRAY:
default:
throwAssert(env, "illegal format");
break;
}
byteData = (jbyte *)(*(table->GetPrimitiveArrayCritical))(env,
byteData_array, NULL);
glReadPixels(xOffset, yAdjusted, wRaster, hRaster,
gltype, GL_UNSIGNED_BYTE, byteData);
/*
{
int i, j , *intData;
fprintf(stderr, "format = %d, wRaster = %d, hRaster = %d\n\n", format, wRaster, hRaster);
intData = (int*)byteData;
for (i = 0; i < wRaster; i++) {
for (j = 0; j < hRaster; j++, intData++) {
fprintf(stderr, " 0x%x", *intData);
}
fprintf(stderr, "\n");
}
}
*/
(*(table->ReleasePrimitiveArrayCritical))(env, byteData_array,
byteData, 0);
}
if ((type & javax_media_j3d_Raster_RASTER_DEPTH) != 0) {
jclass depth_class;
jfieldID wDepth_field, depth_type_field;
jint depth_type, wDepth;
depth_class = (jclass) (*(table->GetObjectClass))(env, depth);
if (depth_class == NULL) {
return;
}
wDepth_field = (jfieldID) (*(table->GetFieldID))(env, depth_class,
"width", "I");
wDepth = (jint)(*(table->GetIntField))(env, depth, wDepth_field);
depth_type_field = (jfieldID) (*(table->GetFieldID))(env,
depth_class, "type", "I");
depth_type = (jint)(*(table->GetIntField))(env, depth,
depth_type_field);
if (depth_type == javax_media_j3d_DepthComponentRetained_DEPTH_COMPONENT_TYPE_INT) {
jfieldID intData_field;
jarray intData_array;
jint *intData;
intData_field = (jfieldID)(*(table->GetFieldID))(env,
ctx_class, "intBuffer","[I");
intData_array = (jarray)(*(table->GetObjectField))(env, ctx,
intData_field);
intData = (jint *)(*(table->GetPrimitiveArrayCritical))(env,
intData_array, NULL);
/* yOffset is adjusted for OpenGL - Y upward */
glReadPixels(xOffset, yAdjusted, wRaster, hRaster,
GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, intData);
(*(table->ReleasePrimitiveArrayCritical))(env, intData_array,
intData, 0);
} else { /* javax_media_j3d_DepthComponentRetained_DEPTH_COMPONENT_TYPE_FLOAT */
jfieldID floatData_field;
jarray floatData_array;
jfloat *floatData;
floatData_field = (jfieldID)(*(table->GetFieldID))(env,
ctx_class, "floatBuffer","[F");
floatData_array = (jarray)(*(table->GetObjectField))(env, ctx,
floatData_field);
floatData = (jfloat *)(*(table->GetPrimitiveArrayCritical))(env,
floatData_array, NULL);
/* yOffset is adjusted for OpenGL - Y upward */
glReadPixels(xOffset, yAdjusted, wRaster, hRaster,
GL_DEPTH_COMPONENT, GL_FLOAT, floatData);
(*(table->ReleasePrimitiveArrayCritical))(env, floatData_array,
floatData, 0);
}
}
}
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