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Java example source code file (QuartzRenderer.m)

This example Java source code file (QuartzRenderer.m) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

bool, cgfloat, cgrectmake, jnicall, jnienv, null, print, quartz_renderer_inline, quartzsdops, sd_fill, sd_nothing, sd_stroke, sdrendertype, yes

The QuartzRenderer.m Java example source code

/*
 * Copyright (c) 2011, 2012, 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.
 */

#import "java_awt_image_BufferedImage.h"
#import "java_awt_geom_PathIterator.h"
#import "sun_java2d_OSXSurfaceData.h"

#import <stdio.h>
#import <JavaNativeFoundation/JavaNativeFoundation.h>

#import "ImageSurfaceData.h"


//#define DEBUG 1
#if defined DEBUG
    #define QUARTZ_RENDERER_INLINE
    #define PRINT(msg) {fprintf(stderr, "%s\n", msg);fflush(stderr);}
#else
    #define QUARTZ_RENDERER_INLINE static inline
    #define PRINT(msg) {}
#endif

// Copied the following from Math.java
#define PI 3.14159265358979323846f

#define BATCHED_POINTS_SIZE 1024

// same value as defined in Sun's own code
#define XOR_ALPHA_CUTOFF 128


static CGFloat gRoundRectCtrlpts[10][12] =
{
    {0.0f, 0.0f, 0.0f, 0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
    {0.0f, 0.0f, 1.0f, -0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
    {0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.5f, 1.0f, 0.0f},
    {1.0f, -0.5f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
    {1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f, -0.5f},
    {1.0f, 0.0f, 0.0f, 0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
    {1.0f, 0.0f, 0.0f, 0.0f,  1.0f, 0.0f, 0.0f, 0.0f, 1.0f, -0.5f, 0.0f, 0.0f},
    {0.0f, 0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
    {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.5f},
    {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
};

CG_EXTERN CGRect CGRectApplyAffineTransform(CGRect rect, CGAffineTransform t);


CGRect sanitizedRect(CGFloat x1, CGFloat y1, CGFloat x2, CGFloat y2) {
    CGFloat temp;
    if (x1 > x2) {
        temp = x2;
        x2 = x1;
        x1 = temp;
    }
    if (y1 > y2) {
        temp = y2;
        y2 = y1;
        y1 = temp;
    }
    return CGRectMake(x1, y1, x2-x1, y2-y1);
}

QUARTZ_RENDERER_INLINE SDRenderType doLineUsingCG(CGContextRef cgRef, CGFloat x1, CGFloat y1, CGFloat x2, CGFloat y2, BOOL simple, CGFloat offsetX, CGFloat offsetY)
{
//fprintf(stderr, "doLine start=(%f, %f), end=(%f, %f), linewidth:%f, offsetX:%f, offsetY:%f\n", x1, y1, x2, y2, CGContextGetLineWidth(cgRef), offsetX, offsetY);
    SDRenderType renderType = SD_Nothing;

    if (simple == YES)
    {
        struct CGPoint oneLinePoints[2];

        oneLinePoints[0] = CGPointMake(x1+offsetX, y1+offsetY);
        oneLinePoints[1] = CGPointMake(x2+offsetX, y2+offsetY);

        CGContextStrokeLineSegments(cgRef, oneLinePoints, 2);
        renderType = SD_Nothing;
    }
    else
    {
        CGContextMoveToPoint(cgRef, x1+offsetX, y1+offsetY);
        CGContextAddLineToPoint(cgRef, x2+offsetX, y2+offsetY);
        renderType = SD_Stroke;
    }

    return renderType;
}
QUARTZ_RENDERER_INLINE SDRenderType doLine(QuartzSDOps *qsdo, CGFloat x1, CGFloat y1, CGFloat x2, CGFloat y2)
{
PRINT(" doLine")
    if (YES)
    {
        return doLineUsingCG(qsdo->cgRef, x1, y1, x2, y2,
                                qsdo->graphicsStateInfo.simpleStroke, qsdo->graphicsStateInfo.offsetX, qsdo->graphicsStateInfo.offsetY);
    }
    // here we can add other implementations (ex. using QuickDraw, OpenGL, etc.)
}


QUARTZ_RENDERER_INLINE SDRenderType doRectUsingCG(CGContextRef cgRef, CGFloat x, CGFloat y, CGFloat w, CGFloat h, BOOL fill, BOOL simple, CGFloat offsetX, CGFloat offsetY)
{
//fprintf(stderr, "doRect point=(%f, %f), size=(%f, %f), offsets=(%f, %f) fill=%d simple=%d\n", x, y, w, h, offsetX, offsetY, fill, simple);
//CGRect clip = CGContextGetClipBoundingBox(cgRef);
//fprintf(stderr, "    clip: ((%f, %f), (%f, %f))\n", clip.origin.x, clip.origin.y, clip.size.width, clip.size.height);
//CGAffineTransform ctm = CGContextGetCTM(cgRef);
//fprintf(stderr, "    ctm: (%f, %f, %f, %f, %f, %f)\n", ctm.a, ctm.b, ctm.c, ctm.d, ctm.tx, ctm.ty);
    SDRenderType renderType = SD_Nothing;

    if (fill == YES)
    {
        if (simple == YES)
        {
            CGContextFillRect(cgRef, CGRectMake(x, y, w, h));
            renderType = SD_Nothing;
        }
        else
        {
            CGContextAddRect(cgRef, CGRectMake(x, y, w, h));
            renderType = SD_Fill;
        }
    }
    else
    {
        if (simple == YES)
        {
            CGContextStrokeRect(cgRef, CGRectMake(x+offsetX, y+offsetY, w, h));
            renderType = SD_Nothing;
        }
        else
        {
            CGContextAddRect(cgRef, CGRectMake(x+offsetX, y+offsetY, w, h));
            renderType = SD_Stroke;
        }
    }

    return renderType;
}
QUARTZ_RENDERER_INLINE SDRenderType doRect(QuartzSDOps *qsdo, CGFloat x, CGFloat y, CGFloat w, CGFloat h, BOOL fill)
{
PRINT(" doRect")
    if (YES)
    {
        return doRectUsingCG(qsdo->cgRef, x, y, w, h, fill,
                                qsdo->graphicsStateInfo.simpleStroke, qsdo->graphicsStateInfo.offsetX, qsdo->graphicsStateInfo.offsetY);
    }
    // here we can add other implementations (ex. using QuickDraw, OpenGL, etc.)
}

// from RoundRectIterator.java
QUARTZ_RENDERER_INLINE SDRenderType doRoundRectUsingCG(CGContextRef cgRef, CGFloat x, CGFloat y, CGFloat w, CGFloat h, CGFloat arcWidth, CGFloat arcHeight, BOOL fill, CGFloat offsetX, CGFloat offsetY)
{
    SDRenderType renderType = SD_Nothing;

    if (fill == YES)
    {
        renderType = SD_Fill;
    }
    else
    {
        renderType = SD_Stroke;
    }

    // radr://3593731 RoundRects with corner width/height of 0 don't draw
    arcWidth = (arcWidth > 0.0f) ? arcWidth : 0.0f;
    arcHeight = (arcHeight > 0.0f) ? arcHeight : 0.0f;

    CGFloat aw = (w < arcWidth) ? w : arcWidth;
    CGFloat ah = (h < arcHeight) ? h : arcHeight;

    CGFloat *ctrls, p1, q1, p2, q2, p3, q3;
    ctrls = gRoundRectCtrlpts[0];
    p1 = (x + ctrls[0] * w + ctrls[1] * aw);
    q1 = (y + ctrls[2] * h + ctrls[3] * ah);
    CGContextMoveToPoint(cgRef, p1+offsetX, q1+offsetY);

    ctrls = gRoundRectCtrlpts[1];
    p1 = (x + ctrls[0] * w + ctrls[1] * aw);
    q1 = (y + ctrls[2] * h + ctrls[3] * ah);
    CGContextAddLineToPoint(cgRef, p1+offsetX, q1+offsetY);

    ctrls = gRoundRectCtrlpts[2];
    p1 = (x + ctrls[0] * w + ctrls[1] * aw);
    q1 = (y + ctrls[2] * h + ctrls[3] * ah);
    p2 = (x + ctrls[4] * w + ctrls[5] * aw);
    q2 = (y + ctrls[6] * h + ctrls[7] * ah);
    p3 = (x + ctrls[8] * w + ctrls[9] * aw);
    q3 = (y + ctrls[10] * h + ctrls[11] * ah);
    CGContextAddCurveToPoint(cgRef, p1+offsetX, q1+offsetY, p2+offsetX, q2+offsetY, p3+offsetX, q3+offsetY);

    ctrls = gRoundRectCtrlpts[3];
    p1 = (x + ctrls[0] * w + ctrls[1] * aw);
    q1 = (y + ctrls[2] * h + ctrls[3] * ah);
    CGContextAddLineToPoint(cgRef, p1+offsetX, q1+offsetY);

    ctrls = gRoundRectCtrlpts[4];
    p1 = (x + ctrls[0] * w + ctrls[1] * aw);
    q1 = (y + ctrls[2] * h + ctrls[3] * ah);
    p2 = (x + ctrls[4] * w + ctrls[5] * aw);
    q2 = (y + ctrls[6] * h + ctrls[7] * ah);
    p3 = (x + ctrls[8] * w + ctrls[9] * aw);
    q3 = (y + ctrls[10] * h + ctrls[11] * ah);
    CGContextAddCurveToPoint(cgRef, p1+offsetX, q1+offsetY, p2+offsetX, q2+offsetY, p3+offsetX, q3+offsetY);

    ctrls = gRoundRectCtrlpts[5];
    p1 = (x + ctrls[0] * w + ctrls[1] * aw);
    q1 = (y + ctrls[2] * h + ctrls[3] * ah);
    CGContextAddLineToPoint(cgRef, p1+offsetX, q1+offsetY);

    ctrls = gRoundRectCtrlpts[6];
    p1 = (x + ctrls[0] * w + ctrls[1] * aw);
    q1 = (y + ctrls[2] * h + ctrls[3] * ah);
    p2 = (x + ctrls[4] * w + ctrls[5] * aw);
    q2 = (y + ctrls[6] * h + ctrls[7] * ah);
    p3 = (x + ctrls[8] * w + ctrls[9] * aw);
    q3 = (y + ctrls[10] * h + ctrls[11] * ah);
    CGContextAddCurveToPoint(cgRef, p1+offsetX, q1+offsetY, p2+offsetX, q2+offsetY, p3+offsetX, q3+offsetY);

    ctrls = gRoundRectCtrlpts[7];
    p1 = (x + ctrls[0] * w + ctrls[1] * aw);
    q1 = (y + ctrls[2] * h + ctrls[3] * ah);
    CGContextAddLineToPoint(cgRef, p1+offsetX, q1+offsetY);

    ctrls = gRoundRectCtrlpts[8];
    p1 = (x + ctrls[0] * w + ctrls[1] * aw);
    q1 = (y + ctrls[2] * h + ctrls[3] * ah);
    p2 = (x + ctrls[4] * w + ctrls[5] * aw);
    q2 = (y + ctrls[6] * h + ctrls[7] * ah);
    p3 = (x + ctrls[8] * w + ctrls[9] * aw);
    q3 = (y + ctrls[10] * h + ctrls[11] * ah);
    CGContextAddCurveToPoint(cgRef, p1+offsetX, q1+offsetY, p2+offsetX, q2+offsetY, p3+offsetX, q3+offsetY);

    CGContextClosePath(cgRef);

    return renderType;
}

QUARTZ_RENDERER_INLINE SDRenderType doRoundRect(QuartzSDOps *qsdo, CGFloat x, CGFloat y, CGFloat w, CGFloat h, CGFloat arcWidth, CGFloat arcHeight, BOOL fill)
{
PRINT(" doRoundRect")
    if (YES)
    {
        return doRoundRectUsingCG(qsdo->cgRef, x, y, w, h, arcWidth, arcHeight, fill,
                                    qsdo->graphicsStateInfo.offsetX, qsdo->graphicsStateInfo.offsetY);
    }
    // here we can add other implementations (ex. using QuickDraw, OpenGL, etc.)
}

// from EllipseIterator.java
QUARTZ_RENDERER_INLINE SDRenderType doOvalUsingCG(CGContextRef cgRef, CGFloat x, CGFloat y, CGFloat w, CGFloat h, BOOL fill, BOOL simple, CGFloat offsetX, CGFloat offsetY)
{
    SDRenderType renderType = SD_Nothing;

    if (simple == YES)
    {
        if (fill == YES)
        {
            CGContextFillEllipseInRect(cgRef, CGRectMake(x+offsetX, y+offsetY, w, h));
        }
        else
        {
            CGContextStrokeEllipseInRect(cgRef, CGRectMake(x+offsetX, y+offsetY, w, h));
        }
    }
    else
    {
        if (fill == YES)
        {
            renderType = SD_Fill;
        }
        else
        {
            renderType = SD_Stroke;
        }

        CGContextAddEllipseInRect(cgRef, CGRectMake(x+offsetX, y+offsetY, w, h));
    }

    return renderType;
}
QUARTZ_RENDERER_INLINE SDRenderType doOval(QuartzSDOps *qsdo, CGFloat x, CGFloat y, CGFloat w, CGFloat h, BOOL fill)
{
PRINT(" doOval")
    if (YES)
    {
        return doOvalUsingCG(qsdo->cgRef, x, y, w, h, fill,
                                qsdo->graphicsStateInfo.simpleStroke, qsdo->graphicsStateInfo.offsetX, qsdo->graphicsStateInfo.offsetY);
    }
    // here we can add other implementations (ex. using QuickDraw, OpenGL, etc.)
}

// from ArcIterator.java
QUARTZ_RENDERER_INLINE CGFloat btan(CGFloat increment)
{
    increment /= 2.0f;
    CGFloat a = 1.0f - cos(increment);
    CGFloat b = tan(increment);
    CGFloat c = sqrt(1.0f + b * b) - 1.0f + a;

    return 4.0f / 3.0f * a * b / c;
}
QUARTZ_RENDERER_INLINE SDRenderType doArcUsingCG(CGContextRef cgRef, CGFloat x, CGFloat y, CGFloat w, CGFloat h, CGFloat angleStart, CGFloat angleExtent, jint arcType, BOOL fill, CGFloat offsetX, CGFloat offsetY)
{
//fprintf(stderr, "doArc\n");
    SDRenderType renderType = SD_Nothing;

    if (fill == YES)
    {
        renderType = SD_Fill;
    }
    else
    {
        renderType = SD_Stroke;
    }

    CGFloat angStRad, angExtDeg;
    jint arcSegs;
    jint lineSegs;
    jint index = 1;

    w = w / 2.0f;
    h = h / 2.0f;
    x = x + w;
    y = y + h;
    angStRad = -(angleStart / 180.0f * PI);
    angExtDeg = -angleExtent;
    CGFloat ext = (angExtDeg>0) ? angExtDeg : -angExtDeg;
    if (ext >= 360.0f)
    {
        arcSegs = 4;
    }
    else
    {
        arcSegs = (jint)ceil(ext/90.0f);
    }
    switch (arcType)
    {
        case 0:
            lineSegs = 0;
            break;
        case 1:
            lineSegs = 1;
            break;
        case 2:
            lineSegs = 2;
            break;
    }
    if (w < 0 || h < 0)
    {
        arcSegs = lineSegs = -1;
    }

    CGFloat angle = angStRad;
    CGContextMoveToPoint(cgRef, (x + cos(angle) * w)+offsetX, (y + sin(angle) * h)+offsetY);

    CGFloat increment = angExtDeg;
    if (increment > 360.0f)
    {
        increment = 360.0f;
    }
    else if (increment < -360.0f)
    {
        increment = -360.0f;
    }
    increment /= arcSegs;
    increment = (increment / 180.0f * PI);
    CGFloat z = btan(increment);
    CGFloat angleBase = angle;
    CGFloat p1, q1, p2, q2, p3, q3;
    while (index <= arcSegs)
    {
        angle = angleBase + increment * (index - 1);
        CGFloat relx = cos(angle);
        CGFloat rely = sin(angle);
        p1 = (x + (relx - z * rely) * w);
        q1 = (y + (rely + z * relx) * h);
        angle += increment;
        relx = cos(angle);
        rely = sin(angle);
        p2 = (x + (relx + z * rely) * w);
        q2 = (y + (rely - z * relx) * h);
        p3 = (x + relx * w);
        q3 = (y + rely * h);

        CGContextAddCurveToPoint(cgRef, p1+offsetX, q1+offsetY, p2+offsetX, q2+offsetY, p3+offsetX, q3+offsetY);

        index++;
    }

    switch (arcType)
    {
        case 1:
            CGContextClosePath(cgRef);
            break;
        case 2:
            CGContextAddLineToPoint(cgRef, x+offsetX, y+offsetY);
            CGContextClosePath(cgRef);
            break;
        default:
            break;
    }

    return renderType;
}
QUARTZ_RENDERER_INLINE SDRenderType doArc(QuartzSDOps *qsdo, CGFloat x, CGFloat y, CGFloat w, CGFloat h, CGFloat angleStart, CGFloat angleExtent, jint arcType, BOOL fill)
{
PRINT(" doArc")
    if (YES)
    {
        return doArcUsingCG(qsdo->cgRef, x, y, w, h, angleStart, angleExtent, arcType, fill,
                                qsdo->graphicsStateInfo.offsetX, qsdo->graphicsStateInfo.offsetY);
    }
    // here we can add other implementations (ex. using QuickDraw, OpenGL, etc.)
}

QUARTZ_RENDERER_INLINE SDRenderType doPolyUsingCG(JNIEnv *env, CGContextRef cgRef, jintArray xpointsarray, jintArray ypointsarray, jint npoints, BOOL polygon, BOOL fill, CGFloat offsetX, CGFloat offsetY)
{
    SDRenderType renderType = SD_Nothing;

    if (npoints > 1)
    {
        if (fill == YES)
        {
            renderType = SD_Fill;
        }
        else
        {
            renderType = SD_Stroke;
        }

        jint i;

        jint* xpoints = (jint*)(*env)->GetPrimitiveArrayCritical(env, xpointsarray, NULL);
        jint* ypoints = (jint*)(*env)->GetPrimitiveArrayCritical(env, ypointsarray, NULL);

        CGContextMoveToPoint(cgRef, xpoints[0]+offsetX, ypoints[0]+offsetY);

        for (i=1; i<npoints; i++)
        {
            CGContextAddLineToPoint(cgRef, xpoints[i]+offsetX, ypoints[i]+offsetY);
        }

        if (polygon == YES)
        {
            if ((xpoints[0] != xpoints[npoints-1]) || (ypoints[0] != ypoints[npoints-1])) // according to the specs (only applies to polygons, not polylines)
            {
                CGContextAddLineToPoint(cgRef, xpoints[0]+offsetX, ypoints[0]+offsetY);
            }
        }

        (*env)->ReleasePrimitiveArrayCritical(env, ypointsarray, ypoints, 0);
        (*env)->ReleasePrimitiveArrayCritical(env, xpointsarray, xpoints, 0);
    }

    return renderType;
}
QUARTZ_RENDERER_INLINE SDRenderType doPoly(JNIEnv *env, QuartzSDOps *qsdo, jintArray xpointsarray, jintArray ypointsarray, jint npoints, BOOL polygon, BOOL fill)
{
PRINT(" doPoly")
    if (YES)
    {
        return doPolyUsingCG(env, qsdo->cgRef, xpointsarray, ypointsarray, npoints, polygon, fill,
            qsdo->graphicsStateInfo.offsetX, qsdo->graphicsStateInfo.offsetY);
    }
    // here we can add other implementations (ex. using QuickDraw, OpenGL, etc.)
}

SDRenderType doShape(QuartzSDOps *qsdo, jint *types, jfloat *coords, jint numtypes, BOOL fill, BOOL shouldApplyOffset)
{
PRINT(" doShape")
    if (YES)
    {
        CGFloat offsetX = 0.0f;
        CGFloat offsetY = 0.0f;
        if (shouldApplyOffset)
        {
            offsetX = qsdo->graphicsStateInfo.offsetX;
            offsetY = qsdo->graphicsStateInfo.offsetY;
        }
        return DoShapeUsingCG(qsdo->cgRef, types, coords, numtypes, fill, offsetX, offsetY); // defined in QuartzSurfaceData.m
    }
    // here we can add other implementations (ex. using QuickDraw, OpenGL, etc.)
}



QUARTZ_RENDERER_INLINE void doImageCG(JNIEnv *env, CGContextRef cgRef, jobject imageSurfaceData,
                                        jint interpolation, BOOL fliph, BOOL flipv, jint w, jint h, jint sx, jint sy, jint sw, jint sh, jint dx, jint dy, jint dw, jint dh)
{
//fprintf(stderr, "doImageCG\n");
//fprintf(stderr, "    flip:(%d, %d), size:(%d, %d), src:(%d, %d, %d, %d), dst:(%d, %d, %d, %d)\n", (jint)fliph, (jint)flipv, w, h, sx, sy, sw, sh, dx, dy, dw, dh);
    // gznote: need to handle interpolation
    ImageSDOps* isdo = LockImage(env, imageSurfaceData);

    CGFloat a = 1.0f;
    CGFloat b = 0.0f;
    CGFloat c = 0.0f;
    CGFloat d = -1.0f;
    CGFloat tx = dx;
    CGFloat ty = dy+dh;

    if (flipv == YES)
    {
        d = 1.0f;
        ty -= dh;
    }
    if (fliph == YES)
    {
        a = -1.0f;
        tx += dw;
    }

    makeSureImageIsCreated(isdo);

    CGContextSaveGState(cgRef);
    CGContextConcatCTM(cgRef, CGAffineTransformMake(a, b, c, d, tx, ty));
    jint alphaInfo = isdo->contextInfo.alphaInfo & kCGBitmapAlphaInfoMask;

    if ((sx == 0) && (sy == 0) && (sw == w) && (sh == h)) // no subimages allowed here
    {
        CGContextDrawImage(cgRef, CGRectMake(0, 0, dw, dh), isdo->imgRef);
    }
    else // handle subimages
    {
        CGImageRef subImg = CGImageCreateWithImageInRect(isdo->imgRef, CGRectMake(sx, sy, sw, sh));
        CGContextDrawImage(cgRef, CGRectMake(0.0f, 0.0f, dw, dh), subImg);
        CGImageRelease(subImg);
    }

    CGContextRestoreGState(cgRef);
    UnlockImage(env, isdo);
}

QUARTZ_RENDERER_INLINE void doImage(JNIEnv *env, QuartzSDOps *qsdo, jobject imageSurfaceData,
                                jboolean fliph, jboolean flipv, jint w, jint h, jint sx, jint sy, jint sw, jint sh, jint dx, jint dy, jint dw, jint dh)
{
    if ((w > 0) && (h > 0) && (sw > 0) && (sh > 0) && (dw > 0) && (dh > 0))
    {
       doImageCG(env, qsdo->cgRef, imageSurfaceData,
                            qsdo->graphicsStateInfo.interpolation, (BOOL)fliph, (BOOL)flipv, (jint)w, (jint)h, (jint)sx, (jint)sy, (jint)sw, (jint)sh, (jint)dx, (jint)dy, (jint)dw, (jint)dh);
    }
}



QUARTZ_RENDERER_INLINE void completePath(JNIEnv *env, QuartzSDOps *qsdo, CGContextRef cgRef, jint renderType)
{
    switch (renderType)
    {
        case SD_Stroke:
            if (CGContextIsPathEmpty(cgRef) == 0)
            {
                CGContextStrokePath(cgRef);
            }
            break;
        case SD_Fill:
            if (CGContextIsPathEmpty(cgRef) == 0)
            {
                CGContextFillPath(cgRef);
            }
            break;
        case SD_Image:
            break;
        case SD_Nothing:
                break;
        default:
fprintf(stderr, "completePath unknown renderType=%d\n", (int)renderType);
            break;
    }
}

/*
 * Class:     sun_java2d_CRenderer
 * Method:    init
 * Signature: ()V
 */
JNIEXPORT void JNICALL Java_sun_java2d_CRenderer_init
(JNIEnv *env, jobject jthis)
{
PRINT("Java_sun_java2d_CRenderer_init")
    CGFloat angle = PI / 4.0f;
    CGFloat a = 1.0f - cos(angle);
    CGFloat b = tan(angle);
    CGFloat c = sqrt(1.0f + b * b) - 1.0f + a;
    CGFloat cv = 4.0f / 3.0f * a * b / c;
    CGFloat acv = (1.0f - cv) / 2.0f;

    gRoundRectCtrlpts[2][3] = -acv;
    gRoundRectCtrlpts[2][5] = acv;
    gRoundRectCtrlpts[4][1] = -acv;
    gRoundRectCtrlpts[4][7] = -acv;
    gRoundRectCtrlpts[6][3] = acv;
    gRoundRectCtrlpts[6][5] = -acv;
    gRoundRectCtrlpts[8][1] = acv;
    gRoundRectCtrlpts[8][7] = acv;
}

/*
 * Class:     sun_java2d_CRenderer
 * Method:    doLine
 * Signature: (Lsun/java2d/SurfaceData;Ljava/nio/IntBuffer;Ljava/nio/FloatBuffer;[Ljava/lang/Object;FFFF)V
 */
JNIEXPORT void JNICALL Java_sun_java2d_CRenderer_doLine
(JNIEnv *env, jobject jthis, jobject jsurfacedata, jfloat x1, jfloat y1, jfloat x2, jfloat y2)
{
PRINT("Java_sun_java2d_CRenderer_doLine")
    QuartzSDOps *qsdo = (QuartzSDOps*)SurfaceData_GetOps(env, jsurfacedata);
JNF_COCOA_ENTER(env);
    SDRenderType renderType = SD_Stroke;
    qsdo->BeginSurface(env, qsdo, renderType);
    if (qsdo->cgRef != NULL)
    {
        doLine(qsdo, x1, y1, x2, y2);
    }
    qsdo->FinishSurface(env, qsdo);
JNF_COCOA_RENDERER_EXIT(env);
}

/*
 * Class:     sun_java2d_CRenderer
 * Method:    doRect
 * Signature: (Lsun/java2d/SurfaceData;Ljava/nio/IntBuffer;Ljava/nio/FloatBuffer;[Ljava/lang/Object;FFFF)V
 */
JNIEXPORT void JNICALL Java_sun_java2d_CRenderer_doRect
(JNIEnv *env, jobject jthis, jobject jsurfacedata, jfloat x, jfloat y, jfloat w, jfloat h, jboolean isfill)
{
PRINT("Java_sun_java2d_CRenderer_doRect")
    QuartzSDOps *qsdo = (QuartzSDOps*)SurfaceData_GetOps(env, jsurfacedata);
JNF_COCOA_ENTER(env);
    SDRenderType renderType    = (isfill? SD_Fill : SD_Stroke);
    qsdo->BeginSurface(env, qsdo, renderType);
    if (qsdo->cgRef != NULL)
    {
        doRect(qsdo, x, y, w, h, isfill);
    }
    qsdo->FinishSurface(env, qsdo);
JNF_COCOA_RENDERER_EXIT(env);
}

/*
 * Class:     sun_java2d_CRenderer
 * Method:    doRoundRect
 * Signature: (Lsun/java2d/SurfaceData;Ljava/nio/IntBuffer;Ljava/nio/FloatBuffer;[Ljava/lang/Object;IIIIII)V
 */
JNIEXPORT void JNICALL Java_sun_java2d_CRenderer_doRoundRect
(JNIEnv *env, jobject jthis, jobject jsurfacedata, jfloat x, jfloat y, jfloat w, jfloat h, jfloat arcWidth, jfloat arcHeight, jboolean isfill)
{
PRINT("Java_sun_java2d_CRenderer_doRoundRect")
    QuartzSDOps *qsdo = (QuartzSDOps*)SurfaceData_GetOps(env, jsurfacedata);
JNF_COCOA_ENTER(env);
    SDRenderType renderType    = (isfill? SD_Fill : SD_Stroke);
    qsdo->BeginSurface(env, qsdo, renderType);
    if (qsdo->cgRef != NULL)
    {
        doRoundRect(qsdo, x, y, w, h, arcWidth, arcHeight, isfill);
    }
    qsdo->FinishSurface(env, qsdo);
JNF_COCOA_RENDERER_EXIT(env);
}

/*
 * Class:     sun_java2d_CRenderer
 * Method:    doOval
 * Signature: (Lsun/java2d/SurfaceData;Ljava/nio/IntBuffer;Ljava/nio/FloatBuffer;[Ljava/lang/Object;IIII)V
 */
JNIEXPORT void JNICALL Java_sun_java2d_CRenderer_doOval
(JNIEnv *env, jobject jthis, jobject jsurfacedata, jfloat x, jfloat y, jfloat w, jfloat h, jboolean isfill)
{
PRINT("Java_sun_java2d_CRenderer_doOval")
    QuartzSDOps *qsdo = (QuartzSDOps*)SurfaceData_GetOps(env, jsurfacedata);
JNF_COCOA_ENTER(env);
    SDRenderType renderType    = (isfill? SD_Fill : SD_Stroke);
    qsdo->BeginSurface(env, qsdo, renderType);
    if (qsdo->cgRef != NULL)
    {
        doOval(qsdo, x, y, w, h, isfill);
    }
    qsdo->FinishSurface(env, qsdo);
JNF_COCOA_RENDERER_EXIT(env);
}

/*
 * Class:     sun_java2d_CRenderer
 * Method:    doArc
 * Signature: (Lsun/java2d/SurfaceData;Ljava/nio/IntBuffer;Ljava/nio/FloatBuffer;[Ljava/lang/Object;IIIIII)V
 */
JNIEXPORT void JNICALL Java_sun_java2d_CRenderer_doArc
(JNIEnv *env, jobject jthis, jobject jsurfacedata, jfloat x, jfloat y, jfloat w, jfloat h, jfloat angleStart, jfloat angleExtent, jint arcType, jboolean isfill)
{
PRINT("Java_sun_java2d_CRenderer_doArc")
    QuartzSDOps *qsdo = (QuartzSDOps*)SurfaceData_GetOps(env, jsurfacedata);
JNF_COCOA_ENTER(env);
    SDRenderType renderType    = (isfill? SD_Fill : SD_Stroke);
    qsdo->BeginSurface(env, qsdo, renderType);
    if (qsdo->cgRef != NULL)
    {
        doArc(qsdo, x, y, w, h, angleStart, angleExtent, arcType, isfill);
    }
    qsdo->FinishSurface(env, qsdo);
JNF_COCOA_RENDERER_EXIT(env);
}

/*
 * Class:     sun_java2d_CRenderer
 * Method:    doPoly
 * Signature:
 */
JNIEXPORT void JNICALL Java_sun_java2d_CRenderer_doPoly
(JNIEnv *env, jobject jthis, jobject jsurfacedata, jintArray xpointsarray, jintArray ypointsarray, jint npoints, jboolean ispolygon, jboolean isfill)
{
PRINT("Java_sun_java2d_CRenderer_doPoly")
    QuartzSDOps *qsdo = (QuartzSDOps*)SurfaceData_GetOps(env, jsurfacedata);
JNF_COCOA_ENTER(env);
    BOOL eoFill = YES; // polys are WIND_EVEN_ODD by definition
    SDRenderType renderType    = (isfill? (eoFill ? SD_EOFill : SD_Fill) : SD_Stroke);
    qsdo->BeginSurface(env, qsdo, renderType);
    if (qsdo->cgRef != NULL)
    {
        doPoly(env, qsdo, xpointsarray, ypointsarray, npoints, ispolygon, isfill);
    }
    qsdo->FinishSurface(env, qsdo);
JNF_COCOA_RENDERER_EXIT(env);
}

/*
 * Class:     sun_java2d_CRenderer
 * Method:    doShape
 * Signature: (Lsun/java2d/SurfaceData;Ljava/nio/IntBuffer;Ljava/nio/FloatBuffer;[Ljava/lang/Object;ILjava/nio/FloatBuffer;Ljava/nio/IntBuffer;IZ)V
 */
JNIEXPORT void JNICALL Java_sun_java2d_CRenderer_doShape
(JNIEnv *env, jobject jthis, jobject jsurfacedata, jint length, jobject jFloatCoordinates, jobject jIntTypes, jint windingRule, jboolean isfill, jboolean shouldApplyOffset)
{
PRINT("Java_sun_java2d_CRenderer_doShape")
    QuartzSDOps *qsdo = (QuartzSDOps*)SurfaceData_GetOps(env, jsurfacedata);
JNF_COCOA_ENTER(env);
    BOOL eoFill = (windingRule == java_awt_geom_PathIterator_WIND_EVEN_ODD);
    SDRenderType renderType    = (isfill? (eoFill ? SD_EOFill : SD_Fill) : SD_Stroke);
    qsdo->BeginSurface(env, qsdo, renderType);
    if (qsdo->cgRef != NULL)
    {
        jfloat *coordinates = (jfloat*)((*env)->GetDirectBufferAddress(env, jFloatCoordinates));
        jint *types = (jint*)((*env)->GetDirectBufferAddress(env, jIntTypes));
        doShape(qsdo, types, coordinates, length, isfill, shouldApplyOffset);
    }
    qsdo->FinishSurface(env, qsdo);
JNF_COCOA_RENDERER_EXIT(env);
}

#define invalidContext(c) \
    ((c) == NULL /* || (c)->identifer != CGContextIdentifier */)

/*
 * Class:     sun_java2d_CRenderer
 * Method:    doImage
 * Signature: (Lsun/java2d/SurfaceData;Ljava/nio/IntBuffer;Ljava/nio/FloatBuffer;[Ljava/lang/Object;Lsun/java2d/SurfaceData;ZZIIIIIIII)V
 */
JNIEXPORT void JNICALL Java_sun_java2d_CRenderer_doImage
(JNIEnv *env, jobject jthis, jobject jsurfacedata, jobject imageSurfaceData, jboolean fliph, jboolean flipv, jint w, jint h, jint sx, jint sy, jint sw, jint sh, jint dx, jint dy, jint dw, jint dh)
{
PRINT("Java_sun_java2d_CRenderer_doImage")
    QuartzSDOps *qsdo = (QuartzSDOps*)SurfaceData_GetOps(env, jsurfacedata);
JNF_COCOA_ENTER(env);
    qsdo->BeginSurface(env, qsdo, SD_Image);
    if (qsdo->cgRef != NULL)
    {
        doImage(env, qsdo, imageSurfaceData, fliph, flipv, w, h, sx, sy, sw, sh, dx, dy, dw, dh);
    }
    qsdo->FinishSurface(env, qsdo);
JNF_COCOA_RENDERER_EXIT(env);
}

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