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/*
* $RCSfile$
*
* Copyright (c) 2004 Sun Microsystems, Inc. All rights reserved.
*
* Use is subject to license terms.
*
* $Revision$
* $Date$
* $State$
*/
#include "StdAfx.h"
extern "C" JNIEXPORT
void JNICALL Java_javax_media_j3d_GraphicsContext3D_readRasterNative(
JNIEnv *env, jobject obj, jlong ctx,
jint type, jint xOffset, jint yOffset,
jint wRaster, jint hRaster, jint hCanvas, jint format,
jobject image, jobject depth, jobject gc)
{
GetDevice();
jclass gc_class = env->GetObjectClass(gc);
jfieldID id;
if ((type & javax_media_j3d_Raster_RASTER_COLOR) != 0) {
jclass image_class = env->GetObjectClass(image);
if (image_class == NULL) {
return;
}
id = env->GetFieldID(gc_class, "byteBuffer","[B");
jarray byteData_array = (jarray) env->GetObjectField(gc, id);
jbyte *byteData;
if ((d3dCtx->d3dPresent.SwapEffect == D3DSWAPEFFECT_DISCARD)
// For offScreen rendering, swapBuffer never invoked
// so it is safe to use backBuffer
&& (!d3dCtx->offScreen)
// If fail to createFrontBuffer, fallback to use
// backSurface. There is no gaurantee this fallback
// will work, but at least in non-debug DirectX library
// it works.
&& ((d3dCtx->frontSurface != NULL) ||
(d3dCtx->frontSurface == NULL) &&
d3dCtx->createFrontBuffer())) {
HRESULT hr = device->GetFrontBuffer(d3dCtx->frontSurface);
if (FAILED(hr)) {
printf("GetFrontBuffer fail %s\n", DXGetErrorString8(hr));
return;
}
byteData = (jbyte *)
env->GetPrimitiveArrayCritical(byteData_array, NULL);
if (!d3dCtx->bFullScreen) {
// We need to invoke GetWindowRect() everytime
// since message resize() will not receive
// when Canvas3D inside browers.
d3dCtx->getScreenRect(d3dCtx->hwnd, &d3dCtx->windowRect);
copyDataFromSurface(format,
xOffset + d3dCtx->windowRect.left,
yOffset + d3dCtx->windowRect.top,
wRaster,
hRaster,
byteData,
d3dCtx->frontSurface);
} else {
copyDataFromSurface(format, xOffset, yOffset,
wRaster, hRaster, byteData,
d3dCtx->frontSurface);
}
} else {
if (d3dCtx->backSurface == NULL) {
HRESULT hr = device->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO,
&d3dCtx->backSurface);
if (FAILED(hr)) {
printf("GetBackBuffer fail %s\n", DXGetErrorString8(hr));
return;
}
}
byteData = (jbyte *)
env->GetPrimitiveArrayCritical(byteData_array, NULL);
copyDataFromSurface(format, xOffset, yOffset, wRaster,
hRaster, byteData, d3dCtx->backSurface);
}
env->ReleasePrimitiveArrayCritical(byteData_array, byteData, 0);
}
if ((type & javax_media_j3d_Raster_RASTER_DEPTH) != 0) {
jclass depth_class = env->GetObjectClass(depth);
if (depth_class == NULL) {
return;
}
id = env->GetFieldID(depth_class, "width", "I");
int wDepth = env->GetIntField(depth, id);
id = env->GetFieldID(depth_class, "type", "I");
int depth_type = env->GetIntField(depth, id);
if (d3dCtx->depthStencilSurface == NULL) {
HRESULT hr =
device->GetDepthStencilSurface(&d3dCtx->depthStencilSurface);
if (FAILED(hr)) {
if (debug) {
printf("[Java3D] Fail to get depth stencil surface %s\n",
DXGetErrorString8(hr));
}
return;
}
}
if (depth_type == javax_media_j3d_DepthComponentRetained_DEPTH_COMPONENT_TYPE_INT) {
id = env->GetFieldID(gc_class, "intBuffer","[I");
jarray intData_array = (jarray) env->GetObjectField(gc, id);
jint *intData = (jint *)
env->GetPrimitiveArrayCritical(intData_array, NULL);
// yOffset is adjusted for OpenGL - Y upward
copyDepthFromSurface(xOffset, yOffset, wRaster,
hRaster, intData, d3dCtx->depthStencilSurface);
env->ReleasePrimitiveArrayCritical(intData_array, intData, 0);
} else { // javax_media_j3d_DepthComponentRetained_DEPTH_COMPONENT_TYPE_FLOAT
id = env->GetFieldID(gc_class, "floatBuffer","[F");
jarray floatData_array = (jarray) env->GetObjectField(gc, id);
jfloat *floatData = (jfloat *)
env->GetPrimitiveArrayCritical(floatData_array, NULL);
// yOffset is adjusted for OpenGL - Y upward
copyDepthFromSurface(xOffset, yOffset, wRaster,
hRaster, floatData, d3dCtx->depthStencilSurface);
env->ReleasePrimitiveArrayCritical(floatData_array,
floatData, 0);
}
}
}
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