author | ohair |
Tue, 25 May 2010 15:58:33 -0700 | |
changeset 5506 | 202f599c92aa |
parent 1732 | cbd1ef3625fc |
child 11897 | 9e80dbac0293 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
5506 | 2 |
* Copyright (c) 2005, 2008, Oracle and/or its affiliates. All rights reserved. |
2 | 3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 |
* |
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* This code is free software; you can redistribute it and/or modify it |
|
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* under the terms of the GNU General Public License version 2 only, as |
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5506 | 7 |
* published by the Free Software Foundation. Oracle designates this |
2 | 8 |
* particular file as subject to the "Classpath" exception as provided |
5506 | 9 |
* by Oracle in the LICENSE file that accompanied this code. |
2 | 10 |
* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
|
12 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
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* version 2 for more details (a copy is included in the LICENSE file that |
|
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* accompanied this code). |
|
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* |
|
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* You should have received a copy of the GNU General Public License version |
|
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
20 |
* |
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5506 | 21 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
22 |
* or visit www.oracle.com if you need additional information or have any |
|
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* questions. |
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2 | 24 |
*/ |
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||
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package sun.java2d.pipe; |
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||
28 |
import java.awt.AlphaComposite; |
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887 | 29 |
import java.awt.Color; |
2 | 30 |
import java.awt.Composite; |
31 |
import java.awt.Paint; |
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32 |
import java.awt.geom.AffineTransform; |
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887 | 33 |
import sun.java2d.pipe.hw.AccelSurface; |
2 | 34 |
import sun.java2d.InvalidPipeException; |
35 |
import sun.java2d.SunGraphics2D; |
|
36 |
import sun.java2d.loops.XORComposite; |
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37 |
import static sun.java2d.pipe.BufferedOpCodes.*; |
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38 |
import static sun.java2d.pipe.BufferedRenderPipe.BYTES_PER_SPAN; |
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39 |
||
40 |
/** |
|
41 |
* Base context class for managing state in a single-threaded rendering |
|
42 |
* environment. Each state-setting operation (e.g. SET_COLOR) is added to |
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43 |
* the provided RenderQueue, which will be processed at a later time by a |
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* single thread. Note that the RenderQueue lock must be acquired before |
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45 |
* calling the validate() method (or any other method in this class). See |
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46 |
* the RenderQueue class comments for a sample usage scenario. |
|
887 | 47 |
* |
48 |
* @see RenderQueue |
|
2 | 49 |
*/ |
887 | 50 |
public abstract class BufferedContext { |
2 | 51 |
|
52 |
/* |
|
53 |
* The following flags help the internals of validate() determine |
|
54 |
* the appropriate (meaning correct, or optimal) code path when |
|
55 |
* setting up the current context. The flags can be bitwise OR'd |
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56 |
* together as needed. |
|
57 |
*/ |
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||
59 |
/** |
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60 |
* Indicates that no flags are needed; take all default code paths. |
|
61 |
*/ |
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62 |
public static final int NO_CONTEXT_FLAGS = (0 << 0); |
|
63 |
/** |
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* Indicates that the source surface (or color value, if it is a simple |
|
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* rendering operation) is opaque (has an alpha value of 1.0). If this |
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* flag is present, it allows us to disable blending in certain |
|
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* situations in order to improve performance. |
|
68 |
*/ |
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public static final int SRC_IS_OPAQUE = (1 << 0); |
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70 |
/** |
|
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* Indicates that the operation uses an alpha mask, which may determine |
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* the code path that is used when setting up the current paint state. |
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*/ |
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public static final int USE_MASK = (1 << 1); |
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75 |
||
76 |
protected RenderQueue rq; |
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protected RenderBuffer buf; |
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78 |
||
79 |
/** |
|
80 |
* This is a reference to the most recently validated BufferedContext. If |
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81 |
* this value is null, it means that there is no current context. It is |
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82 |
* provided here so that validate() only needs to do a quick reference |
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83 |
* check to see if the BufferedContext passed to that method is the same |
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* as the one we've cached here. |
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85 |
*/ |
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protected static BufferedContext currentContext; |
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887 | 88 |
private AccelSurface validatedSrcData; |
89 |
private AccelSurface validatedDstData; |
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private Region validatedClip; |
91 |
private Composite validatedComp; |
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92 |
private Paint validatedPaint; |
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// renamed from isValidatedPaintAColor as part of a work around for 6764257 |
cbd1ef3625fc
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94 |
private boolean isValidatedPaintJustAColor; |
887 | 95 |
private int validatedRGB; |
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private int validatedFlags; |
97 |
private boolean xformInUse; |
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887 | 98 |
private int transX; |
99 |
private int transY; |
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2 | 100 |
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101 |
protected BufferedContext(RenderQueue rq) { |
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102 |
this.rq = rq; |
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103 |
this.buf = rq.getBuffer(); |
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104 |
} |
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105 |
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106 |
/** |
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887 | 107 |
* Fetches the BufferedContextContext associated with the dst. surface |
108 |
* and validates the context using the given parameters. Most rendering |
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109 |
* operations will call this method first in order to set the necessary |
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* state before issuing rendering commands. |
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* |
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* Note: must be called while the RenderQueue lock is held. |
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* |
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114 |
* @throws InvalidPipeException if either src or dest surface is not valid |
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* or lost |
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116 |
* @see RenderQueue#lock |
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117 |
* @see RenderQueue#unlock |
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118 |
*/ |
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119 |
public static void validateContext(AccelSurface srcData, |
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120 |
AccelSurface dstData, |
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Region clip, Composite comp, |
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122 |
AffineTransform xform, |
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Paint paint, SunGraphics2D sg2d, |
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int flags) |
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125 |
{ |
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126 |
// assert rq.lock.isHeldByCurrentThread(); |
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127 |
BufferedContext d3dc = dstData.getContext(); |
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128 |
d3dc.validate(srcData, dstData, |
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clip, comp, xform, paint, sg2d, flags); |
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130 |
} |
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131 |
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132 |
/** |
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* Fetches the BufferedContextassociated with the surface |
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* and disables all context state settings. |
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135 |
* |
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* Note: must be called while the RenderQueue lock is held. |
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137 |
* |
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* @throws InvalidPipeException if the surface is not valid |
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* or lost |
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* @see RenderQueue#lock |
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* @see RenderQueue#unlock |
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*/ |
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143 |
public static void validateContext(AccelSurface surface) { |
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144 |
// assert rt.lock.isHeldByCurrentThread(); |
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145 |
validateContext(surface, surface, |
|
146 |
null, null, null, null, null, NO_CONTEXT_FLAGS); |
|
147 |
} |
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148 |
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149 |
/** |
|
2 | 150 |
* Validates the given parameters against the current state for this |
151 |
* context. If this context is not current, it will be made current |
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152 |
* for the given source and destination surfaces, and the viewport will |
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* be updated. Then each part of the context state (clip, composite, |
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* etc.) is checked against the previous value. If the value has changed |
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* since the last call to validate(), it will be updated accordingly. |
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* |
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* Note that the SunGraphics2D parameter is only used for the purposes |
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158 |
* of validating a (non-null) Paint parameter. In all other cases it |
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159 |
* is safe to pass a null SunGraphics2D and it will be ignored. |
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887 | 160 |
* |
161 |
* Note: must be called while the RenderQueue lock is held. |
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162 |
* |
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* @throws InvalidPipeException if either src or dest surface is not valid |
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* or lost |
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*/ |
887 | 166 |
public void validate(AccelSurface srcData, AccelSurface dstData, |
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Region clip, Composite comp, |
168 |
AffineTransform xform, |
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Paint paint, SunGraphics2D sg2d, int flags) |
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{ |
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// assert rq.lock.isHeldByCurrentThread(); |
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887 | 173 |
boolean updateClip = false; |
174 |
boolean updatePaint = false; |
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176 |
if (!dstData.isValid() || |
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177 |
dstData.isSurfaceLost() || srcData.isSurfaceLost()) |
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178 |
{ |
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179 |
invalidateContext(); |
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throw new InvalidPipeException("bounds changed or surface lost"); |
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181 |
} |
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2 | 182 |
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887 | 183 |
if (paint instanceof Color) { |
184 |
// REMIND: not 30-bit friendly |
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int newRGB = ((Color)paint).getRGB(); |
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tdv
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diff
changeset
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186 |
if (isValidatedPaintJustAColor) { |
887 | 187 |
if (newRGB != validatedRGB) { |
188 |
validatedRGB = newRGB; |
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updatePaint = true; |
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190 |
} |
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} else { |
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validatedRGB = newRGB; |
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updatePaint = true; |
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isValidatedPaintJustAColor = true; |
887 | 195 |
} |
196 |
} else if (validatedPaint != paint) { |
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updatePaint = true; |
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// this should be set when we are switching from paint to color |
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// in which case this condition will be true |
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isValidatedPaintJustAColor = false; |
2 | 201 |
} |
202 |
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203 |
if ((currentContext != this) || |
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(srcData != validatedSrcData) || |
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(dstData != validatedDstData)) |
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{ |
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if (dstData != validatedDstData) { |
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// the clip is dependent on the destination surface, so we |
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// need to update it if we have a new destination surface |
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210 |
updateClip = true; |
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211 |
} |
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212 |
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213 |
if (paint == null) { |
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// make sure we update the color state (otherwise, it might |
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// not be updated if this is the first time the context |
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// is being validated) |
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updatePaint = true; |
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218 |
} |
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219 |
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220 |
// update the current source and destination surfaces |
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221 |
setSurfaces(srcData, dstData); |
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223 |
currentContext = this; |
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validatedSrcData = srcData; |
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validatedDstData = dstData; |
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226 |
} |
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227 |
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228 |
// validate clip |
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887 | 229 |
if ((clip != validatedClip) || updateClip) { |
2 | 230 |
if (clip != null) { |
887 | 231 |
if (updateClip || |
232 |
validatedClip == null || |
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233 |
!(validatedClip.isRectangular() && clip.isRectangular()) || |
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((clip.getLoX() != validatedClip.getLoX() || |
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235 |
clip.getLoY() != validatedClip.getLoY() || |
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clip.getHiX() != validatedClip.getHiX() || |
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clip.getHiY() != validatedClip.getHiY()))) |
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238 |
{ |
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239 |
setClip(clip); |
|
240 |
} |
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2 | 241 |
} else { |
242 |
resetClip(); |
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243 |
} |
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244 |
validatedClip = clip; |
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245 |
} |
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246 |
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247 |
// validate composite (note that a change in the context flags |
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248 |
// may require us to update the composite state, even if the |
|
249 |
// composite has not changed) |
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250 |
if ((comp != validatedComp) || (flags != validatedFlags)) { |
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251 |
if (comp != null) { |
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252 |
setComposite(comp, flags); |
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253 |
} else { |
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254 |
resetComposite(); |
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255 |
} |
|
256 |
// the paint state is dependent on the composite state, so make |
|
257 |
// sure we update the color below |
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258 |
updatePaint = true; |
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259 |
validatedComp = comp; |
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260 |
validatedFlags = flags; |
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261 |
} |
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262 |
||
263 |
// validate transform |
|
887 | 264 |
boolean txChanged = false; |
2 | 265 |
if (xform == null) { |
266 |
if (xformInUse) { |
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267 |
resetTransform(); |
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268 |
xformInUse = false; |
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887 | 269 |
txChanged = true; |
270 |
} else if (sg2d != null) { |
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271 |
if (transX != sg2d.transX || transY != sg2d.transY) { |
|
272 |
txChanged = true; |
|
273 |
} |
|
274 |
} |
|
275 |
if (sg2d != null) { |
|
276 |
transX = sg2d.transX; |
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277 |
transY = sg2d.transY; |
|
2 | 278 |
} |
279 |
} else { |
|
280 |
setTransform(xform); |
|
281 |
xformInUse = true; |
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887 | 282 |
txChanged = true; |
283 |
} |
|
284 |
// non-Color paints may require paint revalidation |
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1732
cbd1ef3625fc
6764257: D3D/OGL: color is not reset properly after save/restoreState() [RSL]
tdv
parents:
887
diff
changeset
|
285 |
if (!isValidatedPaintJustAColor && txChanged) { |
887 | 286 |
updatePaint = true; |
2 | 287 |
} |
288 |
||
289 |
// validate paint |
|
290 |
if (updatePaint) { |
|
291 |
if (paint != null) { |
|
292 |
BufferedPaints.setPaint(rq, sg2d, paint, flags); |
|
293 |
} else { |
|
294 |
BufferedPaints.resetPaint(rq); |
|
295 |
} |
|
296 |
validatedPaint = paint; |
|
297 |
} |
|
298 |
||
299 |
// mark dstData dirty |
|
887 | 300 |
// REMIND: is this really needed now? we do it in SunGraphics2D.. |
2 | 301 |
dstData.markDirty(); |
302 |
} |
|
303 |
||
304 |
/** |
|
305 |
* Invalidates the surfaces associated with this context. This is |
|
306 |
* useful when the context is no longer needed, and we want to break |
|
307 |
* the chain caused by these surface references. |
|
887 | 308 |
* |
309 |
* Note: must be called while the RenderQueue lock is held. |
|
310 |
* |
|
311 |
* @see RenderQueue#lock |
|
312 |
* @see RenderQueue#unlock |
|
2 | 313 |
*/ |
314 |
public void invalidateSurfaces() { |
|
315 |
validatedSrcData = null; |
|
316 |
validatedDstData = null; |
|
317 |
} |
|
318 |
||
887 | 319 |
private void setSurfaces(AccelSurface srcData, |
320 |
AccelSurface dstData) |
|
321 |
{ |
|
2 | 322 |
// assert rq.lock.isHeldByCurrentThread(); |
323 |
rq.ensureCapacityAndAlignment(20, 4); |
|
324 |
buf.putInt(SET_SURFACES); |
|
325 |
buf.putLong(srcData.getNativeOps()); |
|
326 |
buf.putLong(dstData.getNativeOps()); |
|
327 |
} |
|
328 |
||
329 |
private void resetClip() { |
|
330 |
// assert rq.lock.isHeldByCurrentThread(); |
|
331 |
rq.ensureCapacity(4); |
|
332 |
buf.putInt(RESET_CLIP); |
|
333 |
} |
|
334 |
||
335 |
private void setClip(Region clip) { |
|
336 |
// assert rq.lock.isHeldByCurrentThread(); |
|
337 |
if (clip.isRectangular()) { |
|
338 |
rq.ensureCapacity(20); |
|
339 |
buf.putInt(SET_RECT_CLIP); |
|
340 |
buf.putInt(clip.getLoX()).putInt(clip.getLoY()); |
|
341 |
buf.putInt(clip.getHiX()).putInt(clip.getHiY()); |
|
342 |
} else { |
|
343 |
rq.ensureCapacity(28); // so that we have room for at least a span |
|
344 |
buf.putInt(BEGIN_SHAPE_CLIP); |
|
345 |
buf.putInt(SET_SHAPE_CLIP_SPANS); |
|
346 |
// include a placeholder for the span count |
|
347 |
int countIndex = buf.position(); |
|
348 |
buf.putInt(0); |
|
349 |
int spanCount = 0; |
|
350 |
int remainingSpans = buf.remaining() / BYTES_PER_SPAN; |
|
351 |
int span[] = new int[4]; |
|
352 |
SpanIterator si = clip.getSpanIterator(); |
|
353 |
while (si.nextSpan(span)) { |
|
354 |
if (remainingSpans == 0) { |
|
355 |
buf.putInt(countIndex, spanCount); |
|
356 |
rq.flushNow(); |
|
357 |
buf.putInt(SET_SHAPE_CLIP_SPANS); |
|
358 |
countIndex = buf.position(); |
|
359 |
buf.putInt(0); |
|
360 |
spanCount = 0; |
|
361 |
remainingSpans = buf.remaining() / BYTES_PER_SPAN; |
|
362 |
} |
|
363 |
buf.putInt(span[0]); // x1 |
|
364 |
buf.putInt(span[1]); // y1 |
|
365 |
buf.putInt(span[2]); // x2 |
|
366 |
buf.putInt(span[3]); // y2 |
|
367 |
spanCount++; |
|
368 |
remainingSpans--; |
|
369 |
} |
|
370 |
buf.putInt(countIndex, spanCount); |
|
371 |
rq.ensureCapacity(4); |
|
372 |
buf.putInt(END_SHAPE_CLIP); |
|
373 |
} |
|
374 |
} |
|
375 |
||
376 |
private void resetComposite() { |
|
377 |
// assert rq.lock.isHeldByCurrentThread(); |
|
378 |
rq.ensureCapacity(4); |
|
379 |
buf.putInt(RESET_COMPOSITE); |
|
380 |
} |
|
381 |
||
382 |
private void setComposite(Composite comp, int flags) { |
|
383 |
// assert rq.lock.isHeldByCurrentThread(); |
|
384 |
if (comp instanceof AlphaComposite) { |
|
385 |
AlphaComposite ac = (AlphaComposite)comp; |
|
386 |
rq.ensureCapacity(16); |
|
387 |
buf.putInt(SET_ALPHA_COMPOSITE); |
|
388 |
buf.putInt(ac.getRule()); |
|
389 |
buf.putFloat(ac.getAlpha()); |
|
390 |
buf.putInt(flags); |
|
391 |
} else if (comp instanceof XORComposite) { |
|
392 |
int xorPixel = ((XORComposite)comp).getXorPixel(); |
|
393 |
rq.ensureCapacity(8); |
|
394 |
buf.putInt(SET_XOR_COMPOSITE); |
|
395 |
buf.putInt(xorPixel); |
|
396 |
} else { |
|
397 |
throw new InternalError("not yet implemented"); |
|
398 |
} |
|
399 |
} |
|
400 |
||
401 |
private void resetTransform() { |
|
402 |
// assert rq.lock.isHeldByCurrentThread(); |
|
403 |
rq.ensureCapacity(4); |
|
404 |
buf.putInt(RESET_TRANSFORM); |
|
405 |
} |
|
406 |
||
407 |
private void setTransform(AffineTransform xform) { |
|
408 |
// assert rq.lock.isHeldByCurrentThread(); |
|
409 |
rq.ensureCapacityAndAlignment(52, 4); |
|
410 |
buf.putInt(SET_TRANSFORM); |
|
411 |
buf.putDouble(xform.getScaleX()); |
|
412 |
buf.putDouble(xform.getShearY()); |
|
413 |
buf.putDouble(xform.getShearX()); |
|
414 |
buf.putDouble(xform.getScaleY()); |
|
415 |
buf.putDouble(xform.getTranslateX()); |
|
416 |
buf.putDouble(xform.getTranslateY()); |
|
417 |
} |
|
887 | 418 |
|
419 |
/** |
|
420 |
* Resets this context's surfaces and all attributes. |
|
421 |
* |
|
422 |
* Note: must be called while the RenderQueue lock is held. |
|
423 |
* |
|
424 |
* @see RenderQueue#lock |
|
425 |
* @see RenderQueue#unlock |
|
426 |
*/ |
|
427 |
public void invalidateContext() { |
|
428 |
resetTransform(); |
|
429 |
resetComposite(); |
|
430 |
resetClip(); |
|
1732
cbd1ef3625fc
6764257: D3D/OGL: color is not reset properly after save/restoreState() [RSL]
tdv
parents:
887
diff
changeset
|
431 |
BufferedPaints.resetPaint(rq); |
887 | 432 |
invalidateSurfaces(); |
433 |
validatedComp = null; |
|
434 |
validatedClip = null; |
|
435 |
validatedPaint = null; |
|
1732
cbd1ef3625fc
6764257: D3D/OGL: color is not reset properly after save/restoreState() [RSL]
tdv
parents:
887
diff
changeset
|
436 |
isValidatedPaintJustAColor = false; |
887 | 437 |
xformInUse = false; |
438 |
} |
|
439 |
||
440 |
/** |
|
441 |
* Returns a singleton {@code RenderQueue} object used by the rendering |
|
442 |
* pipeline. |
|
443 |
* |
|
444 |
* @return a render queue |
|
445 |
* @see RenderQueue |
|
446 |
*/ |
|
447 |
public abstract RenderQueue getRenderQueue(); |
|
448 |
||
449 |
/** |
|
450 |
* Saves the the state of this context. |
|
451 |
* It may reset the current context. |
|
452 |
* |
|
453 |
* Note: must be called while the RenderQueue lock is held. |
|
454 |
* |
|
455 |
* @see RenderQueue#lock |
|
456 |
* @see RenderQueue#unlock |
|
457 |
*/ |
|
458 |
public abstract void saveState(); |
|
459 |
||
460 |
/** |
|
461 |
* Restores the native state of this context. |
|
462 |
* It may reset the current context. |
|
463 |
* |
|
464 |
* Note: must be called while the RenderQueue lock is held. |
|
465 |
* |
|
466 |
* @see RenderQueue#lock |
|
467 |
* @see RenderQueue#unlock |
|
468 |
*/ |
|
469 |
public abstract void restoreState(); |
|
2 | 470 |
} |