| /* |
| * Copyright (c) 2003, 2008, 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 <awt.h> |
| #include "Trace.h" |
| #include "WindowsFlags.h" |
| |
| BOOL accelReset; // reset registry 2d acceleration settings |
| BOOL useD3D; // d3d enabled flag |
| BOOL forceD3DUsage; // force d3d on or off |
| jboolean g_offscreenSharing; // JAWT accelerated surface sharing |
| BOOL checkRegistry; // Diagnostic tool: outputs 2d registry settings |
| BOOL disableRegistry; // Diagnostic tool: disables registry interaction |
| BOOL setHighDPIAware; // Whether to set the high-DPI awareness flag |
| |
| extern WCHAR *j2dAccelKey; // Name of java2d root key |
| extern WCHAR *j2dAccelDriverKey; // Name of j2d per-device key |
| |
| static jfieldID d3dEnabledID; |
| static jfieldID d3dSetID; |
| static jclass wFlagsClassID; |
| |
| void SetIDs(JNIEnv *env, jclass wFlagsClass) |
| { |
| wFlagsClassID = (jclass)env->NewGlobalRef(wFlagsClass); |
| d3dEnabledID = env->GetStaticFieldID(wFlagsClass, "d3dEnabled", "Z"); |
| d3dSetID = env->GetStaticFieldID(wFlagsClass, "d3dSet", "Z"); |
| } |
| |
| BOOL GetStaticBoolean(JNIEnv *env, jclass wfClass, const char *fieldName) |
| { |
| jfieldID fieldID = env->GetStaticFieldID(wfClass, fieldName, "Z"); |
| return env->GetStaticBooleanField(wfClass, fieldID); |
| } |
| |
| jobject GetStaticObject(JNIEnv *env, jclass wfClass, const char *fieldName, |
| const char *signature) |
| { |
| jfieldID fieldID = env->GetStaticFieldID(wfClass, fieldName, signature); |
| return env->GetStaticObjectField(wfClass, fieldID); |
| } |
| |
| void GetFlagValues(JNIEnv *env, jclass wFlagsClass) |
| { |
| jboolean d3dEnabled = env->GetStaticBooleanField(wFlagsClass, d3dEnabledID); |
| jboolean d3dSet = env->GetStaticBooleanField(wFlagsClass, d3dSetID); |
| if (!d3dSet) { |
| // Only check environment variable if user did not set Java |
| // command-line parameter; values of sun.java2d.d3d override |
| // any setting of J2D_D3D environment variable. |
| char *d3dEnv = getenv("J2D_D3D"); |
| if (d3dEnv) { |
| if (strcmp(d3dEnv, "false") == 0) { |
| // printf("Java2D Direct3D usage disabled by J2D_D3D env\n"); |
| d3dEnabled = FALSE; |
| d3dSet = TRUE; |
| SetD3DEnabledFlag(env, d3dEnabled, d3dSet); |
| } else if (strcmp(d3dEnv, "true") == 0) { |
| // printf("Java2D Direct3D usage forced on by J2D_D3D env\n"); |
| d3dEnabled = TRUE; |
| d3dSet = TRUE; |
| SetD3DEnabledFlag(env, d3dEnabled, d3dSet); |
| } |
| } |
| } |
| useD3D = d3dEnabled; |
| forceD3DUsage = d3dSet; |
| g_offscreenSharing = GetStaticBoolean(env, wFlagsClass, |
| "offscreenSharingEnabled"); |
| accelReset = GetStaticBoolean(env, wFlagsClass, "accelReset"); |
| checkRegistry = GetStaticBoolean(env, wFlagsClass, "checkRegistry"); |
| disableRegistry = GetStaticBoolean(env, wFlagsClass, "disableRegistry"); |
| jstring javaVersionString = (jstring)GetStaticObject(env, wFlagsClass, |
| "javaVersion", |
| "Ljava/lang/String;"); |
| |
| setHighDPIAware = |
| (IS_WINVISTA && GetStaticBoolean(env, wFlagsClass, "setHighDPIAware")); |
| |
| J2dTraceLn(J2D_TRACE_INFO, "WindowsFlags (native):"); |
| J2dTraceLn1(J2D_TRACE_INFO, " d3dEnabled = %s", |
| (useD3D ? "true" : "false")); |
| J2dTraceLn1(J2D_TRACE_INFO, " d3dSet = %s", |
| (forceD3DUsage ? "true" : "false")); |
| J2dTraceLn1(J2D_TRACE_INFO, " offscreenSharing = %s", |
| (g_offscreenSharing ? "true" : "false")); |
| J2dTraceLn1(J2D_TRACE_INFO, " accelReset = %s", |
| (accelReset ? "true" : "false")); |
| J2dTraceLn1(J2D_TRACE_INFO, " checkRegistry = %s", |
| (checkRegistry ? "true" : "false")); |
| J2dTraceLn1(J2D_TRACE_INFO, " disableRegistry = %s", |
| (disableRegistry ? "true" : "false")); |
| J2dTraceLn1(J2D_TRACE_INFO, " setHighDPIAware = %s", |
| (setHighDPIAware ? "true" : "false")); |
| } |
| |
| void SetD3DEnabledFlag(JNIEnv *env, BOOL d3dEnabled, BOOL d3dSet) |
| { |
| useD3D = d3dEnabled; |
| forceD3DUsage = d3dSet; |
| if (env == NULL) { |
| env = (JNIEnv * ) JNU_GetEnv(jvm, JNI_VERSION_1_2); |
| } |
| env->SetStaticBooleanField(wFlagsClassID, d3dEnabledID, d3dEnabled); |
| if (d3dSet) { |
| env->SetStaticBooleanField(wFlagsClassID, d3dSetID, d3dSet); |
| } |
| } |
| |
| BOOL IsD3DEnabled() { |
| return useD3D; |
| } |
| |
| BOOL IsD3DForced() { |
| return forceD3DUsage; |
| } |
| |
| extern "C" { |
| |
| /** |
| * This function is called from WindowsFlags.initFlags() and initializes |
| * the native side of our runtime flags. There are a couple of important |
| * things that happen at the native level after we set the Java flags: |
| * - set native variables based on the java flag settings (such as useDD |
| * based on whether ddraw was enabled by a runtime flag) |
| * - override java level settings if there user has set an environment |
| * variable but not a runtime flag. For example, if the user runs |
| * with sun.java2d.d3d=true but also uses the J2D_D3D=false environment |
| * variable, then we use the java-level true value. But if they do |
| * not use the runtime flag, then the env variable will force d3d to |
| * be disabled. Any native env variable overriding must up-call to |
| * Java to change the java level flag settings. |
| * - A later error in initialization may result in disabling some |
| * native property that must be propagated to the Java level. For |
| * example, d3d is enabled by default, but we may find later that |
| * we must disable it do to some runtime configuration problem (such as |
| * a bad video card). This will happen through mechanisms in this native |
| * file to change the value of the known Java flags (in this d3d example, |
| * we would up-call to set the value of d3dEnabled to Boolean.FALSE). |
| */ |
| JNIEXPORT void JNICALL |
| Java_sun_java2d_windows_WindowsFlags_initNativeFlags(JNIEnv *env, |
| jclass wFlagsClass) |
| { |
| SetIDs(env, wFlagsClass); |
| GetFlagValues(env, wFlagsClass); |
| } |
| |
| } // extern "C" |
