src/java.desktop/share/native/libawt/java2d/loops/IntArgb.h

/*
 * Copyright (c) 2000, 2016, 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.
 */

#ifndef IntArgb_h_Included
#define IntArgb_h_Included

#include "IntDcm.h"
#include "ByteGray.h"
#include "UshortGray.h"

/*
 * This file contains macro and type definitions used by the macros in
 * LoopMacros.h to manipulate a surface of type "IntArgb".
 */

typedef jint    IntArgbPixelType;
typedef jint    IntArgbDataType;

#define IntArgbIsOpaque 0

#define IntArgbPixelStride      4

#define DeclareIntArgbLoadVars(PREFIX)
#define DeclareIntArgbStoreVars(PREFIX)
#define InitIntArgbLoadVars(PREFIX, pRasInfo)
#define SetIntArgbStoreVarsYPos(PREFIX, pRasInfo, y)
#define SetIntArgbStoreVarsXPos(PREFIX, pRasInfo, x)
#define InitIntArgbStoreVarsY(PREFIX, pRasInfo)
#define InitIntArgbStoreVarsX(PREFIX, pRasInfo)
#define NextIntArgbStoreVarsX(PREFIX)
#define NextIntArgbStoreVarsY(PREFIX)
#define DeclareIntArgbInitialLoadVars(pRasInfo, pRas, PREFIX, x)
#define InitialLoadIntArgb(pRas, PREFIX)
#define ShiftBitsIntArgb(PREFIX)
#define FinalStoreIntArgb(pRas, PREFIX)

#define IntArgbPixelFromArgb(pixel, rgb, pRasInfo) \
    (pixel) = (rgb)

#define StoreIntArgbPixel(pRas, x, pixel) \
    (pRas)[x] = (pixel)

#define DeclareIntArgbPixelData(PREFIX)

#define ExtractIntArgbPixelData(PIXEL, PREFIX)

#define StoreIntArgbPixelData(pPix, x, pixel, PREFIX) \
    (pPix)[x] = (pixel)


#define LoadIntArgbTo1IntRgb(pRas, PREFIX, x, rgb) \
    (rgb) = (pRas)[x]

#define LoadIntArgbTo1IntArgb(pRas, PREFIX, x, argb) \
    (argb) = (pRas)[x]

#define LoadIntArgbTo3ByteRgb(pRas, PREFIX, x, r, g, b) \
    do { \
        jint pixel = (pRas)[x]; \
        ExtractIntDcmComponentsX123(pixel, r, g, b); \
    } while (0)

#define LoadIntArgbTo4ByteArgb(pRas, PREFIX, x, a, r, g, b) \
    do { \
        jint pixel = (pRas)[x]; \
        ExtractIntDcmComponents1234(pixel, a, r, g, b); \
    } while (0)

#define StoreIntArgbFrom1IntRgb(pRas, PREFIX, x, rgb) \
    (pRas)[x] = 0xff000000 | (rgb)

#define StoreIntArgbFrom1IntArgb(pRas, PREFIX, x, argb) \
    (pRas)[x] = (argb)

#define StoreIntArgbFrom3ByteRgb(pRas, PREFIX, x, r, g, b) \
    StoreIntArgbFrom4ByteArgb(pRas, PREFIX, x, 0xff, r, g, b)

#define StoreIntArgbFrom4ByteArgb(pRas, PREFIX, x, a, r, g, b) \
    (pRas)[x] = ComposeIntDcmComponents1234(a, r, g, b)

#define CopyIntArgbToIntArgbPre(pRGB, i, PREFIX, pRow, x) \
    do { \
        jint argb = (pRow)[x]; \
        jint a = URShift(argb, 24); \
        if (a == 0) { \
            argb = 0; \
        } else if (a < 0xff) { \
            jint r = (argb >> 16) & 0xff; \
            jint g = (argb >>  8) & 0xff; \
            jint b = (argb      ) & 0xff; \
            r = MUL8(a, r); \
            g = MUL8(a, g); \
            b = MUL8(a, b); \
            argb = ComposeIntDcmComponents1234(a, r, g, b); \
        } \
        (pRGB)[i] = argb; \
    } while (0)


#define DeclareIntArgbAlphaLoadData(PREFIX) \
    jint PREFIX;

#define InitIntArgbAlphaLoadData(PREFIX, pRasInfo) \
    PREFIX = 0

#define LoadAlphaFromIntArgbFor4ByteArgb(pRas, PREFIX, COMP_PREFIX) \
    do { \
        PREFIX = (pRas)[0]; \
        COMP_PREFIX ## A = ((juint) PREFIX) >> 24; \
    } while (0)

#define LoadAlphaFromIntArgbFor1ByteGray(pRas, PREFIX, COMP_PREFIX) \
    LoadAlphaFromIntArgbFor4ByteArgb(pRas, PREFIX, COMP_PREFIX)

#define LoadAlphaFromIntArgbFor1ShortGray(pRas, PREFIX, COMP_PREFIX) \
    do { \
        LoadAlphaFromIntArgbFor4ByteArgb(pRas, PREFIX, COMP_PREFIX); \
        COMP_PREFIX ## A = (COMP_PREFIX ## A << 8) + COMP_PREFIX ## A; \
    } while (0)

#define Postload4ByteArgbFromIntArgb(pRas, PREFIX, COMP_PREFIX) \
    do { \
        COMP_PREFIX ## R = (PREFIX >> 16) & 0xff; \
        COMP_PREFIX ## G = (PREFIX >>  8) & 0xff; \
        COMP_PREFIX ## B = (PREFIX >>  0) & 0xff; \
    } while (0)

#define Postload1ByteGrayFromIntArgb(pRas, PREFIX, COMP_PREFIX) \
    do { \
        int r, g, b; \
        ExtractIntDcmComponentsX123(PREFIX, r, g, b); \
        COMP_PREFIX ## G = ComposeByteGrayFrom3ByteRgb(r, g, b); \
    } while (0)

#define Postload1ShortGrayFromIntArgb(pRas, PREFIX, COMP_PREFIX) \
    do { \
        int r, g, b; \
        ExtractIntDcmComponentsX123(PREFIX, r, g, b); \
        COMP_PREFIX ## G = ComposeUshortGrayFrom3ByteRgb(r, g, b); \
    } while (0)


#define IntArgbIsPremultiplied  0

#define DeclareIntArgbBlendFillVars(PREFIX)

#define ClearIntArgbBlendFillVars(PREFIX, argb) \
    argb = 0

#define InitIntArgbBlendFillVarsNonPre(PREFIX, argb, COMP_PREFIX) \
    argb = (COMP_PREFIX ## A << 24) | (argb & 0x00ffffff); \

#define InitIntArgbBlendFillVarsPre(PREFIX, argb, COMP_PREFIX)

#define StoreIntArgbBlendFill(pRas, PREFIX, x, argb, COMP_PREFIX) \
    (pRas)[x] = (argb)

#define StoreIntArgbFrom4ByteArgbComps(pRas, PREFIX, x, COMP_PREFIX) \
    StoreIntArgbFrom4ByteArgb(pRas, PREFIX, x, \
                              COMP_PREFIX ## A, COMP_PREFIX ## R, \
                              COMP_PREFIX ## G, COMP_PREFIX ## B)


/*
 * Extract ## STRATEGY ## CompsAndAlphaFromArgb(pixel, COMP_PREFIX)
 */
#define Extract3ByteRgbCompsAndAlphaFromArgb(pixel, COMP_PREFIX) \
    ExtractIntDcmComponents1234(pixel, COMP_PREFIX ## A, COMP_PREFIX ## R, \
                                COMP_PREFIX ## G, COMP_PREFIX ## B)

#define Extract4ByteArgbCompsAndAlphaFromArgb(pixel, COMP_PREFIX) \
    Extract3ByteRgbCompsAndAlphaFromArgb(pixel, COMP_PREFIX)

#define Extract1ByteGrayCompsAndAlphaFromArgb(pixel, COMP_PREFIX) \
    do { \
        int r, g, b; \
        ExtractIntDcmComponents1234(pixel, COMP_PREFIX ## A, r, g, b); \
        COMP_PREFIX ## G = ComposeByteGrayFrom3ByteRgb(r, g, b); \
    } while (0)

#define Extract1ShortGrayCompsAndAlphaFromArgb(pixel, COMP_PREFIX) \
    do { \
        int r, g, b; \
        ExtractIntDcmComponents1234(pixel, COMP_PREFIX ## A, r, g, b); \
        COMP_PREFIX ## G = ComposeUshortGrayFrom3ByteRgb(r, g, b); \
        COMP_PREFIX ## A = (COMP_PREFIX ## A << 8) + COMP_PREFIX ## A; \
    } while (0)

/*
 * SrcOver ## TYPE ## BlendFactor
 * Returns appropriate blend value for use in blending calculations.
 */
#define SrcOverIntArgbBlendFactor(dF, dA) \
    (dA)

#endif /* IntArgb_h_Included */