/*
* Copyright (c) 2003, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include <jlong.h>
#include "sun_java2d_opengl_GLXSurfaceData.h"
#include "OGLRenderQueue.h"
#include "GLXGraphicsConfig.h"
#include "GLXSurfaceData.h"
#include "awt_Component.h"
#include "awt_GraphicsEnv.h"
/**
* The methods in this file implement the native windowing system specific
* layer (GLX) for the OpenGL-based Java 2D pipeline.
*/
#ifndef HEADLESS
extern LockFunc OGLSD_Lock;
extern GetRasInfoFunc OGLSD_GetRasInfo;
extern UnlockFunc OGLSD_Unlock;
extern DisposeFunc OGLSD_Dispose;
extern void
OGLSD_SetNativeDimensions(JNIEnv *env, OGLSDOps *oglsdo, jint w, jint h);
jboolean surfaceCreationFailed = JNI_FALSE;
#endif /* !HEADLESS */
JNIEXPORT void JNICALL
Java_sun_java2d_opengl_GLXSurfaceData_initOps(JNIEnv *env, jobject glxsd,
jobject gc,
jobject peer, jlong aData)
{
#ifndef HEADLESS
gc = (*env)->NewGlobalRef(env, gc);
if (gc == NULL) {
JNU_ThrowOutOfMemoryError(env, "Initialization of SurfaceData failed.");
return;
}
OGLSDOps *oglsdo = (OGLSDOps *)SurfaceData_InitOps(env, glxsd,
sizeof(OGLSDOps));
if (oglsdo == NULL) {
(*env)->DeleteGlobalRef(env, gc);
JNU_ThrowOutOfMemoryError(env, "Initialization of SurfaceData failed.");
return;
}
// later the graphicsConfig will be used for deallocation of oglsdo
oglsdo->graphicsConfig = gc;
GLXSDOps *glxsdo = (GLXSDOps *)malloc(sizeof(GLXSDOps));
if (glxsdo == NULL) {
JNU_ThrowOutOfMemoryError(env, "creating native GLX ops");
return;
}
J2dTraceLn(J2D_TRACE_INFO, "GLXSurfaceData_initOps");
oglsdo->privOps = glxsdo;
oglsdo->sdOps.Lock = OGLSD_Lock;
oglsdo->sdOps.GetRasInfo = OGLSD_GetRasInfo;
oglsdo->sdOps.Unlock = OGLSD_Unlock;
oglsdo->sdOps.Dispose = OGLSD_Dispose;
oglsdo->drawableType = OGLSD_UNDEFINED;
oglsdo->activeBuffer = GL_FRONT;
oglsdo->needsInit = JNI_TRUE;
if (peer != NULL) {
glxsdo->window = JNU_CallMethodByName(env, NULL, peer,
"getContentWindow", "()J").j;
} else {
glxsdo->window = 0;
}
glxsdo->configData = (AwtGraphicsConfigDataPtr)jlong_to_ptr(aData);
if (glxsdo->configData == NULL) {
free(glxsdo);
JNU_ThrowNullPointerException(env,
"Native GraphicsConfig data block missing");
return;
}
if (glxsdo->configData->glxInfo == NULL) {
free(glxsdo);
JNU_ThrowNullPointerException(env, "GLXGraphicsConfigInfo missing");
return;
}
#endif /* HEADLESS */
}
#ifndef HEADLESS
/**
* This function disposes of any native windowing system resources associated
* with this surface.
*/
void
OGLSD_DestroyOGLSurface(JNIEnv *env, OGLSDOps *oglsdo)
{
J2dTraceLn(J2D_TRACE_INFO, "OGLSD_DestroyOGLSurface");
// X Window is free'd later by AWT code...
}
/**
* Makes the given context current to its associated "scratch" surface. If
* the operation is successful, this method will return JNI_TRUE; otherwise,
* returns JNI_FALSE.
*/
static jboolean
GLXSD_MakeCurrentToScratch(JNIEnv *env, OGLContext *oglc)
{
GLXCtxInfo *ctxInfo;
J2dTraceLn(J2D_TRACE_INFO, "GLXSD_MakeCurrentToScratch");
if (oglc == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"GLXSD_MakeCurrentToScratch: context is null");
return JNI_FALSE;
}
ctxInfo = (GLXCtxInfo *)oglc->ctxInfo;
if (!j2d_glXMakeContextCurrent(awt_display,
ctxInfo->scratchSurface,
ctxInfo->scratchSurface,
ctxInfo->context))
{
J2dRlsTraceLn(J2D_TRACE_ERROR,
"GLXSD_MakeCurrentToScratch: could not make current");
return JNI_FALSE;
}
return JNI_TRUE;
}
/**
* Makes the given GraphicsConfig's context current to its associated
* "scratch" surface. If there is a problem making the context current,
* this method will return NULL; otherwise, returns a pointer to the
* OGLContext that is associated with the given GraphicsConfig.
*/
OGLContext *
OGLSD_SetScratchSurface(JNIEnv *env, jlong pConfigInfo)
{
GLXGraphicsConfigInfo *glxInfo =
(GLXGraphicsConfigInfo *)jlong_to_ptr(pConfigInfo);
OGLContext *oglc;
J2dTraceLn(J2D_TRACE_INFO, "OGLSD_SetScratchContext");
if (glxInfo == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLSD_SetScratchContext: glx config info is null");
return NULL;
}
oglc = glxInfo->context;
if (!GLXSD_MakeCurrentToScratch(env, oglc)) {
return NULL;
}
if (OGLC_IS_CAP_PRESENT(oglc, CAPS_EXT_FBOBJECT)) {
// the GL_EXT_framebuffer_object extension is present, so this call
// will ensure that we are bound to the scratch pbuffer (and not
// some other framebuffer object)
j2d_glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
}
return oglc;
}
/**
* Makes a context current to the given source and destination
* surfaces. If there is a problem making the context current, this method
* will return NULL; otherwise, returns a pointer to the OGLContext that is
* associated with the destination surface.
*/
OGLContext *
OGLSD_MakeOGLContextCurrent(JNIEnv *env, OGLSDOps *srcOps, OGLSDOps *dstOps)
{
GLXSDOps *dstGLXOps = (GLXSDOps *)dstOps->privOps;
OGLContext *oglc;
J2dTraceLn(J2D_TRACE_INFO, "OGLSD_MakeOGLContextCurrent");
oglc = dstGLXOps->configData->glxInfo->context;
if (oglc == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLSD_MakeOGLContextCurrent: context is null");
return NULL;
}
if (dstOps->drawableType == OGLSD_FBOBJECT) {
OGLContext *currentContext = OGLRenderQueue_GetCurrentContext();
// first make sure we have a current context (if the context isn't
// already current to some drawable, we will make it current to
// its scratch surface)
if (oglc != currentContext) {
if (!GLXSD_MakeCurrentToScratch(env, oglc)) {
return NULL;
}
}
// now bind to the fbobject associated with the destination surface;
// this means that all rendering will go into the fbobject destination
// (note that we unbind the currently bound texture first; this is
// recommended procedure when binding an fbobject)
j2d_glBindTexture(dstOps->textureTarget, 0);
j2d_glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, dstOps->fbobjectID);
} else {
GLXSDOps *srcGLXOps = (GLXSDOps *)srcOps->privOps;
GLXCtxInfo *ctxinfo = (GLXCtxInfo *)oglc->ctxInfo;
// make the context current
if (!j2d_glXMakeContextCurrent(awt_display,
dstGLXOps->drawable,
srcGLXOps->drawable,
ctxinfo->context))
{
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLSD_MakeOGLContextCurrent: could not make current");
return NULL;
}
if (OGLC_IS_CAP_PRESENT(oglc, CAPS_EXT_FBOBJECT)) {
// the GL_EXT_framebuffer_object extension is present, so we
// must bind to the default (windowing system provided)
// framebuffer
j2d_glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
}
}
return oglc;
}
/**
* This function initializes a native window surface and caches the window
* bounds in the given OGLSDOps. Returns JNI_TRUE if the operation was
* successful; JNI_FALSE otherwise.
*/
jboolean
OGLSD_InitOGLWindow(JNIEnv *env, OGLSDOps *oglsdo)
{
GLXSDOps *glxsdo;
Window window;
XWindowAttributes attr;
J2dTraceLn(J2D_TRACE_INFO, "OGLSD_InitOGLWindow");
if (oglsdo == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLSD_InitOGLWindow: ops are null");
return JNI_FALSE;
}
glxsdo = (GLXSDOps *)oglsdo->privOps;
if (glxsdo == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLSD_InitOGLWindow: glx ops are null");
return JNI_FALSE;
}
window = glxsdo->window;
if (window == 0) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLSD_InitOGLWindow: window is invalid");
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