Ejemplo n.º 1
0
/**
 * Attempts to initialize GLX and the core OpenGL library.  For this method
 * to return JNI_TRUE, the following must be true:
 *     - libGL must be loaded successfully (via dlopen)
 *     - all function symbols from libGL must be available and loaded properly
 *     - the GLX extension must be available through X11
 *     - client GLX version must be >= 1.3
 * If any of these requirements are not met, this method will return
 * JNI_FALSE, indicating there is no hope of using GLX/OpenGL for any
 * GraphicsConfig in the environment.
 */
static jboolean
GLXGC_InitGLX()
{
    int errorbase, eventbase;
    const char *version;

    J2dRlsTraceLn(J2D_TRACE_INFO, "GLXGC_InitGLX");

    if (!OGLFuncs_OpenLibrary()) {
        return JNI_FALSE;
    }

    if (!OGLFuncs_InitPlatformFuncs() ||
        !OGLFuncs_InitBaseFuncs() ||
        !OGLFuncs_InitExtFuncs())
    {
        OGLFuncs_CloseLibrary();
        return JNI_FALSE;
    }

    if (!j2d_glXQueryExtension(awt_display, &errorbase, &eventbase)) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
                      "GLXGC_InitGLX: GLX extension is not present");
        OGLFuncs_CloseLibrary();
        return JNI_FALSE;
    }

    version = j2d_glXGetClientString(awt_display, GLX_VERSION);
    if (version == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
                      "GLXGC_InitGLX: could not query GLX version");
        OGLFuncs_CloseLibrary();
        return JNI_FALSE;
    }

    // we now only verify that the client GLX version is >= 1.3 (if the
    // server does not support GLX 1.3, then we will find that out later
    // when we attempt to create a GLXFBConfig)
    J2dRlsTraceLn1(J2D_TRACE_INFO,
                   "GLXGC_InitGLX: client GLX version=%s", version);
    if (!((version[0] == '1' && version[2] >= '3') || (version[0] > '1'))) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
                      "GLXGC_InitGLX: invalid GLX version; 1.3 is required");
        OGLFuncs_CloseLibrary();
        return JNI_FALSE;
    }

    return JNI_TRUE;
}
Ejemplo n.º 2
0
/**
 * Attempts to initialize WGL and the core OpenGL library.  For this method
 * to return JNI_TRUE, the following must be true:
 *     - opengl32.dll must be loaded successfully (via LoadLibrary)
 *     - all core WGL/OGL function symbols from opengl32.dll must be
 *       available and loaded properly
 * If any of these requirements are not met, this method will return
 * JNI_FALSE, indicating there is no hope of using WGL/OpenGL for any
 * GraphicsConfig in the environment.
 */
JNIEXPORT jboolean JNICALL
Java_sun_java2d_opengl_WGLGraphicsConfig_initWGL(JNIEnv *env, jclass wglgc)
{
    J2dRlsTraceLn(J2D_TRACE_INFO, "WGLGraphicsConfig_initWGL");

    if (!OGLFuncs_OpenLibrary()) {
        return JNI_FALSE;
    }

    if (!OGLFuncs_InitPlatformFuncs() ||
        !OGLFuncs_InitBaseFuncs())
    {
        OGLFuncs_CloseLibrary();
        return JNI_FALSE;
    }

    return JNI_TRUE;
}
Ejemplo n.º 3
0
/**
 * Attempts to initialize WGL and the core OpenGL library.  For this method
 * to return JNI_TRUE, the following must be true:
 *     - opengl32.dll must be loaded successfully (via LoadLibrary)
 *     - all core WGL/OGL function symbols from opengl32.dll must be
 *       available and loaded properly
 * If any of these requirements are not met, this method will return
 * JNI_FALSE, indicating there is no hope of using WGL/OpenGL for any
 * GraphicsConfig in the environment.
 */
static jboolean
WGLGC_InitWGL()
{
    J2dTraceLn(J2D_TRACE_INFO, "in WGLGC_InitWGL");

    if (!OGLFuncs_OpenLibrary()) {
        return JNI_FALSE;
    }

    if (!OGLFuncs_InitPlatformFuncs() ||
        !OGLFuncs_InitBaseFuncs())
    {
        OGLFuncs_CloseLibrary();
        return JNI_FALSE;
    }

    return JNI_TRUE;
}