clr.cc

linux下建立JAVA虚拟机的源码KAFFE

/**
 * clr.c - color management
 *
 * Copyright (c) 1998
 *      Transvirtual Technologies, Inc.  All rights reserved.
 *
 * Copyright (c) 2002, 2003, 2004
 *	Kaffe.org contributors, see ChangeLog for details.  All rights reserved.
 *
 * See the file "license.terms" for information on usage and redistribution 
 * of this file. 
 */

#include <limits.h>
#include <math.h>

#ifdef QPE
#  include <qpe/qpeapplication.h>
#else
#  include <qapplication.h>
#endif

#include "toolkit.h"


#ifdef QPE
extern QPEApplication *qapp;
#else
extern QApplication *qapp;
#endif

/**
 * common funcs
 */

void initColorMapping(JNIEnv* env, jclass clazz,  Toolkit* X)
{
  // qapp->setColorSpec(QApplication::NormalColor);
  X->colorMode = QApplication::ManyColor;
}


/**
 * exported functions
 */

jint Java_java_awt_Toolkit_clrGetPixelValue(JNIEnv* env, jclass clazz,
  jint rgb)
{
  /*
   * We do this deferred to avoid class init problems with Defaults<->Color
   * (the notorious DefaultsRGB workaround)
   */
  if ( !X->colorMode )
	initColorMapping( env, clazz, X);

  DBG(AWT_CLR, qqDebug("clrGetPixelValue: %8x -> %x\n", rgb, (uint) QColor(JRED(rgb), JGREEN(rgb), JBLUE(rgb)).pixel()));

  return rgb;
}

void Java_java_awt_Toolkit_clrSetSystemColors(JNIEnv* env, jclass clazz,
  jintArray sysClrs)
{
}

/*
 * Check brighter, darker and Color(long pixRgb) in Color.java
 */
jlong Java_java_awt_Toolkit_clrBright(JNIEnv* env, jclass clazz, jint rgb)
{
  unsigned int r, g, b;
  jint     modRgb;

  r = JRED( rgb);
  g = JGREEN( rgb);
  b = JBLUE( rgb);

  r = (r * 4) / 3;
  g = (g * 4) / 3;
  b = (b * 4) / 3;
	
  if ( r > 0xff ) r = 0xff;
  if ( g > 0xff ) g = 0xff;
  if ( b > 0xff ) b = 0xff;

  modRgb = JRGB( r, g, b);

  return (jlong(modRgb));
}

jlong Java_java_awt_Toolkit_clrDark(JNIEnv* env, jclass clazz, jint rgb)
{
  unsigned int r, g, b;
  jint modRgb;

  r = JRED( rgb);
  g = JGREEN( rgb);
  b = JBLUE( rgb);

  r = (r * 2) / 3;
  g = (g * 2) / 3;
  b = (b * 2) / 3;
	
  modRgb = JRGB( r, g, b);

  return ((jlong)modRgb);
}

jobject Java_java_awt_Toolkit_clrGetColorModel(JNIEnv* env, jclass clazz)
{
  jobject    cm = 0;
  jclass     cmClazz;
  jmethodID  cmCtorId;
  QColor color;  

  if ( !X->colorMode )
	initColorMapping( env, clazz, X);

  if (color.numBitPlanes() > 8) {
    cmClazz = env->FindClass("java/awt/image/DirectColorModel");
    cmCtorId = env->GetMethodID(cmClazz, "<init>", "(IIIII)V");
    cm = env->NewObject(cmClazz, cmCtorId, 24, 0xff0000, 0x00ff00, 0x0000ff, 0);
  } else {
    cmClazz = env->FindClass("java/awt/IndexColorModel");
    cmCtorId = env->GetMethodID(cmClazz, "<init>", "(I[II)V");
    cm = env->NewObject(cmClazz, cmCtorId, 8, env->NewIntArray(256), 0);
  }

  return cm;
}