Java example source code file (GDIRenderer.cpp)
The GDIRenderer.cpp Java example source code/*
* Copyright (c) 1999, 2013, 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 "sun_java2d_windows_GDIRenderer.h"
#include "java_awt_geom_PathIterator.h"
#include "GDIWindowSurfaceData.h"
#include "awt_Component.h"
#include "awt_Pen.h"
#include "awt_Brush.h"
#include "GraphicsPrimitiveMgr.h"
#include <math.h> /* for cos(), sin(), etc */
#define MAX_CLAMP_BND (1<<26)
#define MIN_CLAMP_BND (-MAX_CLAMP_BND)
#define CLAMP(x) (((x) > MAX_CLAMP_BND) ? \
MAX_CLAMP_BND : ((x) < MIN_CLAMP_BND) ? \
MIN_CLAMP_BND : (x))
extern "C" {
#define POLYTEMPSIZE (512 / sizeof(POINT))
static void AngleToCoord(jint angle, jint w, jint h, jint *x, jint *y)
{
const double pi = 3.1415926535;
const double toRadians = 2 * pi / 360;
*x = (long)(cos((double)angle * toRadians) * w);
*y = -(long)(sin((double)angle * toRadians) * h);
}
static POINT *TransformPoly(jint *xpoints, jint *ypoints,
jint transx, jint transy,
POINT *pPoints, jint *pNpoints,
BOOL close, BOOL fixend)
{
int npoints = *pNpoints;
int outpoints = npoints;
jint x, y;
// Fix for 4298688 - draw(Line) and Polygon omit last pixel
// We will need to add a point if we need to close it off or
// if we need to fix the endpoint to accommodate the Windows
// habit of never drawing the last pixel of a Polyline. Note
// that if the polyline is already closed then neither fix
// is needed because the last pixel is also the first pixel
// and so will be drawn just fine.
// Clarification for 4298688 - regression bug 4678208 points
// out that we still need to fix the endpoint if the closed
// polygon never went anywhere (all vertices on same coordinate).
jint mx = xpoints[0];
jint my = ypoints[0];
BOOL isclosed = (xpoints[npoints-1] == mx && ypoints[npoints-1] == my);
if ((close && !isclosed) || fixend) {
outpoints++;
*pNpoints = outpoints;
}
if (outpoints > POLYTEMPSIZE) {
pPoints = (POINT *) SAFE_SIZE_ARRAY_ALLOC(safe_Malloc, sizeof(POINT), outpoints);
}
BOOL isempty = fixend;
for (int i = 0; i < npoints; i++) {
x = xpoints[i];
y = ypoints[i];
isempty = isempty && (x == mx && y == my);
pPoints[i].x = CLAMP(x + transx);
pPoints[i].y = CLAMP(y + transy);
}
if (close && !isclosed) {
pPoints[npoints] = pPoints[0];
} else if (fixend) {
if (!close || isempty) {
// Fix for 4298688 - draw(Line) and Polygon omit last pixel
// Fix up the last segment by adding another segment after
// it that is only 1 pixel long. The first pixel of that
// segment will be drawn, but the second pixel is the one
// that Windows omits.
pPoints[npoints] = pPoints[npoints-1];
pPoints[npoints].x++;
} else {
outpoints--;
*pNpoints = outpoints;
}
}
return pPoints;
}
/*
* Class: sun_java2d_windows_GDIRenderer
* Method: doDrawLine
* Signature: (Lsun/java2d/windows/GDIWindowSurfaceData;Lsun/java2d/pipe/Region;Ljava/awt/Composite;IIIII)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_windows_GDIRenderer_doDrawLine
(JNIEnv *env, jobject wr,
jobject sData,
jobject clip, jobject comp, jint color,
jint x1, jint y1, jint x2, jint y2)
{
J2dTraceLn(J2D_TRACE_INFO, "GDIRenderer_doDrawLine");
J2dTraceLn5(J2D_TRACE_VERBOSE,
" color=0x%x x1=%-4d y1=%-4d x2=%-4d y2=%-4d",
color, x1, y1, x2, y2);
GDIWinSDOps *wsdo = GDIWindowSurfaceData_GetOps(env, sData);
if (wsdo == NULL) {
return;
}
HDC hdc;
jint patrop;
if (x1 == x2 || y1 == y2) {
if (x1 > x2) {
jint t = x1; x1 = x2; x2 = t;
}
if (y1 > y2) {
jint t = y1; y1 = y2; y2 = t;
}
hdc = wsdo->GetDC(env, wsdo, BRUSH, &patrop, clip, comp, color);
if (hdc == NULL) {
return;
}
::PatBlt(hdc, x1, y1, x2-x1+1, y2-y1+1, patrop);
} else {
hdc = wsdo->GetDC(env, wsdo, PENBRUSH, &patrop, clip, comp, color);
if (hdc == NULL) {
return;
}
::MoveToEx(hdc, x1, y1, NULL);
::LineTo(hdc, x2, y2);
::PatBlt(hdc, x2, y2, 1, 1, patrop);
}
wsdo->ReleaseDC(env, wsdo, hdc);
}
/*
* Class: sun_java2d_windows_GDIRenderer
* Method: doDrawRect
* Signature: (Lsun/java2d/windows/GDIWindowSurfaceData;Lsun/java2d/pipe/Region;Ljava/awt/Composite;IIIII)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_windows_GDIRenderer_doDrawRect
(JNIEnv *env, jobject wr,
jobject sData,
jobject clip, jobject comp, jint color,
jint x, jint y, jint w, jint h)
{
J2dTraceLn(J2D_TRACE_INFO, "GDIRenderer_doDrawRect");
J2dTraceLn5(J2D_TRACE_VERBOSE,
" color=0x%x x=%-4d y=%-4d w=%-4d h=%-4d",
color, x, y, w, h);
if (w < 0 || h < 0) {
return;
}
GDIWinSDOps *wsdo = GDIWindowSurfaceData_GetOps(env, sData);
if (wsdo == NULL) {
return;
}
jint patrop;
HDC hdc = wsdo->GetDC(env, wsdo, BRUSH, &patrop, clip, comp, color);
if (hdc == NULL) {
return;
}
if (w < 2 || h < 2) {
// If one dimension is less than 2 then there is no
// gap in the middle - draw a solid filled rectangle.
::PatBlt(hdc, x, y, w+1, h+1, patrop);
} else {
// Avoid drawing the endpoints twice.
// Also prefer including the endpoints in the
// horizontal sections which draw pixels faster.
::PatBlt(hdc, x, y, w+1, 1, patrop);
::PatBlt(hdc, x, y+1, 1, h-1, patrop);
::PatBlt(hdc, x+w, y+1, 1, h-1, patrop);
::PatBlt(hdc, x, y+h, w+1, 1, patrop);
}
wsdo->ReleaseDC(env, wsdo, hdc);
}
/*
* Class: sun_java2d_windows_GDIRenderer
* Method: doDrawRoundRect
* Signature: (Lsun/java2d/windows/GDIWindowSurfaceData;Lsun/java2d/pipe/Region;Ljava/awt/Composite;IIIIIII)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_windows_GDIRenderer_doDrawRoundRect
(JNIEnv *env, jobject wr,
jobject sData,
jobject clip, jobject comp, jint color,
jint x, jint y, jint w, jint h, jint arcW, jint arcH)
{
J2dTraceLn(J2D_TRACE_INFO, "GDIRenderer_doDrawRoundRect");
J2dTraceLn5(J2D_TRACE_VERBOSE,
" color=0x%x x=%-4d y=%-4d w=%-4d h=%-4d",
color, x, y, w, h);
J2dTraceLn2(J2D_TRACE_VERBOSE, " arcW=%-4d arcH=%-4d",
arcW, arcH);
if (w < 2 || h < 2 || arcW <= 0 || arcH <= 0) {
// Fix for 4524760 - drawRoundRect0 test case fails on Windows 98
// Thin round rects degenerate into regular rectangles
// because there is no room for the arc sections. Also
// if there is no arc dimension then the roundrect must
// be a simple rectangle. Defer to the DrawRect function
// which handles degenerate sizes better.
Java_sun_java2d_windows_GDIRenderer_doDrawRect(env, wr,
sData, clip,
comp, color,
x, y, w, h);
return;
}
GDIWinSDOps *wsdo = GDIWindowSurfaceData_GetOps(env, sData);
if (wsdo == NULL) {
return;
}
HDC hdc = wsdo->GetDC(env, wsdo, PENONLY, NULL, clip, comp, color);
if (hdc == NULL) {
return;
}
::RoundRect(hdc, x, y, x+w+1, y+h+1, arcW, arcH);
wsdo->ReleaseDC(env, wsdo, hdc);
}
/*
* Class: sun_java2d_windows_GDIRenderer
* Method: doDrawOval
* Signature: (Lsun/java2d/windows/GDIWindowSurfaceData;Lsun/java2d/pipe/Region;Ljava/awt/Composite;IIIII)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_windows_GDIRenderer_doDrawOval
(JNIEnv *env, jobject wr,
jobject sData,
jobject clip, jobject comp, jint color,
jint x, jint y, jint w, jint h)
{
J2dTraceLn(J2D_TRACE_INFO, "GDIRenderer_doDrawOval");
J2dTraceLn5(J2D_TRACE_VERBOSE,
" color=0x%x x=%-4d y=%-4d w=%-4d h=%-4d",
color, x, y, w, h);
if (w < 2 || h < 2) {
// Thin enough ovals have no room for curvature. Defer to
// the DrawRect method which handles degenerate sizes better.
Java_sun_java2d_windows_GDIRenderer_doDrawRect(env, wr,
sData, clip,
comp, color,
x, y, w, h);
return;
}
GDIWinSDOps *wsdo = GDIWindowSurfaceData_GetOps(env, sData);
if (wsdo == NULL) {
return;
}
HDC hdc = wsdo->GetDC(env, wsdo, PENONLY, NULL, clip, comp, color);
if (hdc == NULL) {
return;
}
::Ellipse(hdc, x, y, x+w+1, y+h+1);
wsdo->ReleaseDC(env, wsdo, hdc);
}
/*
* Class: sun_java2d_windows_GDIRenderer
* Method: doDrawArc
* Signature: (Lsun/java2d/windows/GDIWindowSurfaceData;Lsun/java2d/pipe/Region;Ljava/awt/Composite;IIIIIII)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_windows_GDIRenderer_doDrawArc
(JNIEnv *env, jobject wr,
jobject sData,
jobject clip, jobject comp, jint color,
jint x, jint y, jint w, jint h,
jint angleStart, jint angleExtent)
{
J2dTraceLn(J2D_TRACE_INFO, "GDIRenderer_doDrawArc");
J2dTraceLn5(J2D_TRACE_VERBOSE,
" color=0x%x x=%-4d y=%-4d w=%-4d h=%-4d",
color, x, y, w, h);
J2dTraceLn2(J2D_TRACE_VERBOSE,
" angleStart=%-4d angleExtent=%-4d",
angleStart, angleExtent);
if (w < 0 || h < 0 || angleExtent == 0) {
return;
}
GDIWinSDOps *wsdo = GDIWindowSurfaceData_GetOps(env, sData);
if (wsdo == NULL) {
return;
}
long sx, sy, ex, ey;
if (angleExtent >= 360 || angleExtent <= -360) {
sx = ex = x + w;
sy = ey = y + h/2;
} else {
int angleEnd;
if (angleExtent < 0) {
angleEnd = angleStart;
angleStart += angleExtent;
} else {
angleEnd = angleStart + angleExtent;
}
AngleToCoord(angleStart, w, h, &sx, &sy);
sx += x + w/2;
sy += y + h/2;
AngleToCoord(angleEnd, w, h, &ex, &ey);
ex += x + w/2;
ey += y + h/2;
}
HDC hdc = wsdo->GetDC(env, wsdo, PEN, NULL, clip, comp, color);
if (hdc == NULL) {
return;
}
::Arc(hdc, x, y, x+w+1, y+h+1, sx, sy, ex, ey);
wsdo->ReleaseDC(env, wsdo, hdc);
}
/*
* Class: sun_java2d_windows_GDIRenderer
* Method: doDrawPoly
* Signature: (Lsun/java2d/windows/GDIWindowSurfaceData;Lsun/java2d/pipe/Region;Ljava/awt/Composite;III[I[IIZ)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_windows_GDIRenderer_doDrawPoly
(JNIEnv *env, jobject wr,
jobject sData,
jobject clip, jobject comp, jint color,
jint transx, jint transy,
jintArray xpointsarray, jintArray ypointsarray,
jint npoints, jboolean isclosed)
{
J2dTraceLn(J2D_TRACE_INFO, "GDIRenderer_doDrawPoly");
J2dTraceLn5(J2D_TRACE_VERBOSE,
" color=0x%x transx=%-4d transy=%-4d "\
"npoints=%-4d isclosed=%-4d",
color, transx, transy, npoints, isclosed);
if (JNU_IsNull(env, xpointsarray) || JNU_IsNull(env, ypointsarray)) {
JNU_ThrowNullPointerException(env, "coordinate array");
return;
}
if (env->GetArrayLength(xpointsarray) < npoints ||
env->GetArrayLength(ypointsarray) < npoints)
{
JNU_ThrowArrayIndexOutOfBoundsException(env, "coordinate array");
return;
}
if (npoints < 2) {
// Fix for 4067534 - assertion failure in 1.3.1 for degenerate polys
// Not enough points for a line.
// Note that this would be ignored later anyway, but returning
// here saves us from mistakes in TransformPoly and seeing bad
// return values from the Windows Polyline function.
return;
}
GDIWinSDOps *wsdo = GDIWindowSurfaceData_GetOps(env, sData);
if (wsdo == NULL) {
return;
}
POINT tmpPts[POLYTEMPSIZE], *pPoints;
jint *xpoints = (jint *) env->GetPrimitiveArrayCritical(xpointsarray, NULL);
jint *ypoints = (jint *) env->GetPrimitiveArrayCritical(ypointsarray, NULL);
pPoints = TransformPoly(xpoints, ypoints, transx, transy,
tmpPts, &npoints, isclosed, TRUE);
env->ReleasePrimitiveArrayCritical(xpointsarray, xpoints, JNI_ABORT);
env->ReleasePrimitiveArrayCritical(ypointsarray, ypoints, JNI_ABORT);
if (pPoints == NULL) {
return;
}
HDC hdc = wsdo->GetDC(env, wsdo, PEN, NULL, clip, comp, color);
if (hdc == NULL) {
return;
}
::Polyline(hdc, pPoints, npoints);
wsdo->ReleaseDC(env, wsdo, hdc);
if (pPoints != tmpPts) {
free(pPoints);
}
}
/*
* Class: sun_java2d_windows_GDIRenderer
* Method: doFillRect
* Signature: (Lsun/java2d/windows/GDIWindowSurfaceData;Lsun/java2d/pipe/Region;Ljava/awt/Composite;IIIII)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_windows_GDIRenderer_doFillRect
(JNIEnv *env, jobject wr,
jobject sData,
jobject clip, jobject comp, jint color,
jint x, jint y, jint w, jint h)
{
J2dTraceLn(J2D_TRACE_INFO, "GDIRenderer_doFillRect");
J2dTraceLn5(J2D_TRACE_VERBOSE,
" color=0x%x x=%-4d y=%-4d w=%-4d h=%-4d",
color, x, y, w, h);
if (w <= 0 || h <= 0) {
return;
}
GDIWinSDOps *wsdo = GDIWindowSurfaceData_GetOps(env, sData);
if (wsdo == NULL) {
return;
}
jint patrop;
HDC hdc = wsdo->GetDC(env, wsdo, BRUSH, &patrop, clip, comp, color);
if (hdc == NULL) {
return;
}
::PatBlt(hdc, x, y, w, h, patrop);
wsdo->ReleaseDC(env, wsdo, hdc);
}
/*
* Class: sun_java2d_windows_GDIRenderer
* Method: doFillRoundRect
* Signature: (Lsun/java2d/windows/GDIWindowSurfaceData;Lsun/java2d/pipe/Region;Ljava/awt/Composite;IIIIIII)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_windows_GDIRenderer_doFillRoundRect
(JNIEnv *env, jobject wr,
jobject sData,
jobject clip, jobject comp, jint color,
jint x, jint y, jint w, jint h, jint arcW, jint arcH)
{
J2dTraceLn(J2D_TRACE_INFO, "GDIRenderer_doFillRoundRect");
J2dTraceLn5(J2D_TRACE_VERBOSE,
" color=0x%x x=%-4d y=%-4d w=%-4d h=%-4d",
color, x, y, w, h);
J2dTraceLn2(J2D_TRACE_VERBOSE, " arcW=%-4d arcH=%-4d",
arcW, arcH);
if (w < 2 || h < 2 || arcW <= 0 || arcH <= 0) {
// Fix related to 4524760 - drawRoundRect0 fails on Windows 98
// Thin round rects have no room for curvature. Also, if
// the curvature is empty then the primitive has degenerated
// into a simple rectangle. Defer to the FillRect method
// which deals with degenerate sizes better.
Java_sun_java2d_windows_GDIRenderer_doFillRect(env, wr,
sData, clip,
comp, color,
x, y, w, h);
return;
}
GDIWinSDOps *wsdo = GDIWindowSurfaceData_GetOps(env, sData);
if (wsdo == NULL) {
return;
}
HDC hdc = wsdo->GetDC(env, wsdo, BRUSHONLY, NULL, clip, comp, color);
if (hdc == NULL) {
return;
}
::RoundRect(hdc, x, y, x+w+1, y+h+1, arcW, arcH);
wsdo->ReleaseDC(env, wsdo, hdc);
}
/*
* Class: sun_java2d_windows_GDIRenderer
* Method: doFillOval
* Signature: (Lsun/java2d/windows/GDIWindowSurfaceData;Lsun/java2d/pipe/Region;Ljava/awt/Composite;IIIII)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_windows_GDIRenderer_doFillOval
(JNIEnv *env, jobject wr,
jobject sData,
jobject clip, jobject comp, jint color,
jint x, jint y, jint w, jint h)
{
J2dTraceLn(J2D_TRACE_INFO, "GDIRenderer_doFillOval");
J2dTraceLn5(J2D_TRACE_VERBOSE,
" color=0x%x x=%-4d y=%-4d w=%-4d h=%-4d",
color, x, y, w, h);
if (w < 3 || h < 3) {
// Fix for 4411814 - small ovals do not draw anything
// (related to 4205762 on Solaris platform)
// Most platform graphics packages have poor rendering
// for thin ellipses and the rendering is most strikingly
// different from our theoretical arcs. Ideally we should
// trap all ovals less than some fairly large size and
// try to draw aesthetically pleasing ellipses, but that
// would require considerably more work to get the corresponding
// drawArc variants to match pixel for pixel.
// Thin ovals of girth 1 pixel are simple rectangles.
// Thin ovals of girth 2 pixels are simple rectangles with
// potentially smaller lengths. Determine the correct length
// by calculating .5*.5 + scaledlen*scaledlen == 1.0 which
// means that scaledlen is the sqrt(0.75). Scaledlen is
// relative to the true length (w or h) and needs to be
// adjusted by half a pixel in different ways for odd or
// even lengths.
#define SQRT_3_4 0.86602540378443864676
if (w > 2 && h > 1) {
int adjw = (int) ((SQRT_3_4 * w - ((w&1)-1)) * 0.5);
adjw = adjw * 2 + (w&1);
x += (w-adjw)/2;
w = adjw;
} else if (h > 2 && w > 1) {
int adjh = (int) ((SQRT_3_4 * h - ((h&1)-1)) * 0.5);
adjh = adjh * 2 + (h&1);
y += (h-adjh)/2;
h = adjh;
}
#undef SQRT_3_4
if (w > 0 && h > 0) {
Java_sun_java2d_windows_GDIRenderer_doFillRect(env, wr, sData,
clip, comp, color,
x, y, w, h);
}
return;
}
GDIWinSDOps *wsdo = GDIWindowSurfaceData_GetOps(env, sData);
if (wsdo == NULL) {
return;
}
HDC hdc = wsdo->GetDC(env, wsdo, BRUSHONLY, NULL, clip, comp, color);
if (hdc == NULL) {
return;
}
::Ellipse(hdc, x, y, x+w+1, y+h+1);
wsdo->ReleaseDC(env, wsdo, hdc);
}
/*
* Class: sun_java2d_windows_GDIRenderer
* Method: doFillArc
* Signature: (Lsun/java2d/windows/GDIWindowSurfaceData;Lsun/java2d/pipe/Region;Ljava/awt/Composite;IIIIIII)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_windows_GDIRenderer_doFillArc
(JNIEnv *env, jobject wr,
jobject sData,
jobject clip, jobject comp, jint color,
jint x, jint y, jint w, jint h,
jint angleStart, jint angleExtent)
{
J2dTraceLn(J2D_TRACE_INFO, "GDIRenderer_doFillArc");
J2dTraceLn5(J2D_TRACE_VERBOSE,
" color=0x%x x=%-4d y=%-4d w=%-4d h=%-4d",
color, x, y, w, h);
J2dTraceLn2(J2D_TRACE_VERBOSE,
" angleStart=%-4d angleExtent=%-4d",
angleStart, angleExtent);
if (w <= 0 || h <= 0 || angleExtent == 0) {
return;
}
if (angleExtent >= 360 || angleExtent <= -360) {
// Fix related to 4411814 - small ovals (and arcs) do not draw
// If the arc is a full circle, let the Oval method handle it
// since that method can deal with degenerate sizes better.
Java_sun_java2d_windows_GDIRenderer_doFillOval(env, wr,
sData, clip,
comp, color,
x, y, w, h);
return;
}
GDIWinSDOps *wsdo = GDIWindowSurfaceData_GetOps(env, sData);
if (wsdo == NULL) {
return;
}
long sx, sy, ex, ey;
int angleEnd;
if (angleExtent < 0) {
angleEnd = angleStart;
angleStart += angleExtent;
} else {
angleEnd = angleStart + angleExtent;
}
AngleToCoord(angleStart, w, h, &sx, &sy);
sx += x + w/2;
sy += y + h/2;
AngleToCoord(angleEnd, w, h, &ex, &ey);
ex += x + w/2;
ey += y + h/2;
HDC hdc = wsdo->GetDC(env, wsdo, BRUSHONLY, NULL, clip, comp, color);
if (hdc == NULL) {
return;
}
::Pie(hdc, x, y, x+w+1, y+h+1, sx, sy, ex, ey);
wsdo->ReleaseDC(env, wsdo, hdc);
}
/*
* Class: sun_java2d_windows_GDIRenderer
* Method: doFillPoly
* Signature: (Lsun/java2d/windows/GDIWindowSurfaceData;Lsun/java2d/pipe/Region;Ljava/awt/Composite;III[I[II)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_windows_GDIRenderer_doFillPoly
(JNIEnv *env, jobject wr,
jobject sData,
jobject clip, jobject comp, jint color,
jint transx, jint transy,
jintArray xpointsarray, jintArray ypointsarray,
jint npoints)
{
J2dTraceLn(J2D_TRACE_INFO, "GDIRenderer_doFillPoly");
J2dTraceLn4(J2D_TRACE_VERBOSE,
" color=0x%x transx=%-4d transy=%-4d npoints=%-4d",
color, transx, transy, npoints);
if (JNU_IsNull(env, xpointsarray) || JNU_IsNull(env, ypointsarray)) {
JNU_ThrowNullPointerException(env, "coordinate array");
return;
}
if (env->GetArrayLength(xpointsarray) < npoints ||
env->GetArrayLength(ypointsarray) < npoints)
{
JNU_ThrowArrayIndexOutOfBoundsException(env, "coordinate array");
return;
}
if (npoints < 3) {
// Fix for 4067534 - assertion failure in 1.3.1 for degenerate polys
// Not enough points for a triangle.
// Note that this would be ignored later anyway, but returning
// here saves us from mistakes in TransformPoly and seeing bad
// return values from the Windows Polyline function.
return;
}
GDIWinSDOps *wsdo = GDIWindowSurfaceData_GetOps(env, sData);
if (wsdo == NULL) {
return;
}
POINT tmpPts[POLYTEMPSIZE], *pPoints;
jint *xpoints = (jint *) env->GetPrimitiveArrayCritical(xpointsarray, NULL);
jint *ypoints = (jint *) env->GetPrimitiveArrayCritical(ypointsarray, NULL);
pPoints = TransformPoly(xpoints, ypoints, transx, transy,
tmpPts, &npoints, FALSE, FALSE);
env->ReleasePrimitiveArrayCritical(xpointsarray, xpoints, JNI_ABORT);
env->ReleasePrimitiveArrayCritical(ypointsarray, ypoints, JNI_ABORT);
if (pPoints == NULL) {
return;
}
HDC hdc = wsdo->GetDC(env, wsdo, BRUSHONLY, NULL, clip, comp, color);
if (hdc == NULL) {
return;
}
::SetPolyFillMode(hdc, ALTERNATE);
::Polygon(hdc, pPoints, npoints);
wsdo->ReleaseDC(env, wsdo, hdc);
if (pPoints != tmpPts) {
free(pPoints);
}
}
/*
* Class: sun_java2d_windows_GDIRenderer
* Method: doShape
* Signature: (Lsun/java2d/windows/GDIWindowSurfaceData;Lsun/java2d/pipe/Region;
* Ljava/awt/Composite;IIILjava/awt/geom/Path2D.Float;Z)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_windows_GDIRenderer_doShape
(JNIEnv *env, jobject wr,
jobject sData,
jobject clip, jobject comp, jint color,
jint transX, jint transY,
jobject p2df, jboolean isfill)
{
J2dTraceLn(J2D_TRACE_INFO, "GDIRenderer_doShape");
J2dTraceLn4(J2D_TRACE_VERBOSE,
" color=0x%x transx=%-4d transy=%-4d isfill=%-4d",
color, transX, transY, isfill);
GDIWinSDOps *wsdo = GDIWindowSurfaceData_GetOps(env, sData);
if (wsdo == NULL) {
return;
}
jarray typesarray = (jarray) env->GetObjectField(p2df, path2DTypesID);
jarray coordsarray = (jarray) env->GetObjectField(p2df,
path2DFloatCoordsID);
if (coordsarray == NULL) {
JNU_ThrowNullPointerException(env, "coordinates array");
return;
}
jint numtypes = env->GetIntField(p2df, path2DNumTypesID);
if (env->GetArrayLength(typesarray) < numtypes) {
JNU_ThrowArrayIndexOutOfBoundsException(env, "types array");
return;
}
jint maxcoords = env->GetArrayLength(coordsarray);
jint rule = env->GetIntField(p2df, path2DWindingRuleID);
HDC hdc = wsdo->GetDC(env, wsdo, (isfill ? BRUSH : PEN), NULL,
clip, comp, color);
if (hdc == NULL) {
return;
}
::SetPolyFillMode(hdc, (rule == java_awt_geom_PathIterator_WIND_NON_ZERO
? WINDING : ALTERNATE));
::BeginPath(hdc);
jbyte *types = (jbyte *) env->GetPrimitiveArrayCritical(typesarray,
NULL);
jfloat *coords = (jfloat *) env->GetPrimitiveArrayCritical(coordsarray,
NULL);
int index = 0;
BOOL ok = TRUE;
BOOL isempty = TRUE;
BOOL isapoint = TRUE;
int mx = 0, my = 0, x1 = 0, y1 = 0;
POINT ctrlpts[3];
for (int i = 0; ok && i < numtypes; i++) {
switch (types[i]) {
case java_awt_geom_PathIterator_SEG_MOVETO:
if (!isfill && !isempty) {
// Fix for 4298688 - draw(Line) omits last pixel
// Windows omits the last pixel of a path when stroking.
// Fix up the last segment of the previous subpath by
// adding another segment after it that is only 1 pixel
// long. The first pixel of that segment will be drawn,
// but the second pixel is the one that Windows omits.
::LineTo(hdc, x1+1, y1);
}
if (index + 2 <= maxcoords) {
mx = x1 = transX + (int) floor(coords[index++]);
my = y1 = transY + (int) floor(coords[index++]);
::MoveToEx(hdc, x1, y1, NULL);
isempty = TRUE;
isapoint = TRUE;
} else {
ok = FALSE;
}
break;
case java_awt_geom_PathIterator_SEG_LINETO:
if (index + 2 <= maxcoords) {
x1 = transX + (int) floor(coords[index++]);
y1 = transY + (int) floor(coords[index++]);
::LineTo(hdc, x1, y1);
isapoint = isapoint && (x1 == mx && y1 == my);
isempty = FALSE;
} else {
ok = FALSE;
}
break;
case java_awt_geom_PathIterator_SEG_QUADTO:
if (index + 4 <= maxcoords) {
ctrlpts[0].x = transX + (int) floor(coords[index++]);
ctrlpts[0].y = transY + (int) floor(coords[index++]);
ctrlpts[2].x = transX + (int) floor(coords[index++]);
ctrlpts[2].y = transY + (int) floor(coords[index++]);
ctrlpts[1].x = (ctrlpts[0].x * 2 + ctrlpts[2].x) / 3;
ctrlpts[1].y = (ctrlpts[0].y * 2 + ctrlpts[2].y) / 3;
ctrlpts[0].x = (ctrlpts[0].x * 2 + x1) / 3;
ctrlpts[0].y = (ctrlpts[0].y * 2 + y1) / 3;
x1 = ctrlpts[2].x;
y1 = ctrlpts[2].y;
::PolyBezierTo(hdc, ctrlpts, 3);
isapoint = isapoint && (x1 == mx && y1 == my);
isempty = FALSE;
} else {
ok = FALSE;
}
break;
case java_awt_geom_PathIterator_SEG_CUBICTO:
if (index + 6 <= maxcoords) {
ctrlpts[0].x = transX + (int) floor(coords[index++]);
ctrlpts[0].y = transY + (int) floor(coords[index++]);
ctrlpts[1].x = transX + (int) floor(coords[index++]);
ctrlpts[1].y = transY + (int) floor(coords[index++]);
ctrlpts[2].x = transX + (int) floor(coords[index++]);
ctrlpts[2].y = transY + (int) floor(coords[index++]);
x1 = ctrlpts[2].x;
y1 = ctrlpts[2].y;
::PolyBezierTo(hdc, ctrlpts, 3);
isapoint = isapoint && (x1 == mx && y1 == my);
isempty = FALSE;
} else {
ok = FALSE;
}
break;
case java_awt_geom_PathIterator_SEG_CLOSE:
::CloseFigure(hdc);
if (x1 != mx || y1 != my) {
x1 = mx;
y1 = my;
::MoveToEx(hdc, x1, y1, NULL);
isempty = TRUE;
isapoint = TRUE;
} else if (!isfill && !isempty && isapoint) {
::LineTo(hdc, x1+1, y1);
::MoveToEx(hdc, x1, y1, NULL);
isempty = TRUE;
isapoint = TRUE;
}
break;
}
}
env->ReleasePrimitiveArrayCritical(typesarray, types, JNI_ABORT);
env->ReleasePrimitiveArrayCritical(coordsarray, coords, JNI_ABORT);
if (ok) {
if (!isfill && !isempty) {
// Fix for 4298688 - draw(Line) omits last pixel
// Windows omits the last pixel of a path when stroking.
// Fix up the last segment of the previous subpath by
// adding another segment after it that is only 1 pixel
// long. The first pixel of that segment will be drawn,
// but the second pixel is the one that Windows omits.
::LineTo(hdc, x1+1, y1);
}
::EndPath(hdc);
if (isfill) {
::FillPath(hdc);
} else {
::StrokePath(hdc);
}
} else {
::AbortPath(hdc);
JNU_ThrowArrayIndexOutOfBoundsException(env, "coords array");
}
wsdo->ReleaseDC(env, wsdo, hdc);
}
} /* extern "C" */
INLINE BOOL RectInMonitorRect(RECT *rCheck, RECT *rContainer)
{
// Assumption: left <= right, top <= bottom
if (rCheck->left >= rContainer->left &&
rCheck->right <= rContainer->right &&
rCheck->top >= rContainer->top &&
rCheck->bottom <= rContainer->bottom)
{
return TRUE;
} else {
return FALSE;
}
}
/*
* Class: sun_java2d_windows_GDIRenderer
* Method: devCopyArea
* Signature: (Lsun/java2d/windows/GDIWindowSurfaceData;IIIIII)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_windows_GDIRenderer_devCopyArea
(JNIEnv *env, jobject wr,
jobject wsd,
jint srcx, jint srcy,
jint dx, jint dy,
jint width, jint height)
{
GDIWinSDOps *wsdo = GDIWindowSurfaceData_GetOps(env, wsd);
J2dTraceLn(J2D_TRACE_INFO, "GDIWindowSurfaceData_devCopyArea");
J2dTraceLn4(J2D_TRACE_VERBOSE, " srcx=%-4d srcy=%-4d dx=%-4d dy=%-4d",
srcx, srcy, dx, dy);
J2dTraceLn2(J2D_TRACE_VERBOSE, " w=%-4d h=%-4d", width, height);
if (wsdo == NULL) {
return;
}
if (wsdo->invalid) {
SurfaceData_ThrowInvalidPipeException(env,
"GDIRenderer_devCopyArea: invalid surface data");
return;
}
HDC hDC = wsdo->GetDC(env, wsdo, 0, NULL, NULL, NULL, 0);
if (hDC == NULL) {
return;
}
RECT r;
::SetRect(&r, srcx, srcy, srcx + width, srcy + height);
HRGN rgnUpdate = ::CreateRectRgn(0, 0, 0, 0);
VERIFY(::ScrollDC(hDC, dx, dy, &r, NULL, rgnUpdate, NULL));
// ScrollDC invalidates the part of the source rectangle that
// is outside of the destination rectangle on the assumption
// that you wanted to "move" the pixels from source to dest,
// and so now you will want to paint new pixels in the source.
// Since our copyarea operation involves no such semantics we
// are only interested in the part of the update region that
// corresponds to unavailable source pixels - i.e. the part
// that falls within the destination rectangle.
// The update region will be in client relative coordinates
// but the destination rect will be in window relative coordinates
::OffsetRect(&r, dx-wsdo->insets.left, dy-wsdo->insets.top);
HRGN rgnDst = ::CreateRectRgnIndirect(&r);
int result = ::CombineRgn(rgnUpdate, rgnUpdate, rgnDst, RGN_AND);
// Invalidate the exposed area.
if (result != NULLREGION) {
::InvalidateRgn(wsdo->window, rgnUpdate, TRUE);
}
::DeleteObject(rgnUpdate);
::DeleteObject(rgnDst);
wsdo->ReleaseDC(env, wsdo, hDC);
}
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