modules/graphics/src/main/jsl-decora/LinearConvolveShadow.jsl

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   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * 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
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  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
  23  * questions.
  24  */
  25 
  26 <<
  27 private LinearConvolveKernel getKernel() {
  28     return (LinearConvolveKernel) AccessHelper.getState(getEffect());
  29 }
  30 
  31 public int getPow2ScaleX(LinearConvolveKernel kernel) {
  32     return kernel.getPow2ScaleX();
  33 }
  34 
  35 public int getPow2ScaleY(LinearConvolveKernel kernel) {
  36     return kernel.getPow2ScaleY();
  37 }
  38 
  39 public Rectangle getResultBounds(com.sun.javafx.geom.transform.BaseTransform transform,
  40                                  com.sun.javafx.geom.Rectangle outputClip,
  41                                  com.sun.scenario.effect.ImageData... inputDatas)
  42 {
  43     return getKernel().getScaledResultBounds(inputDatas[0].getTransformedBounds(outputClip), getPass());
  44 }
  45 
  46 private int getCount() {
  47     return (getKernel().getScaledKernelSize(getPass()) + 3) / 4;
  48 }
  49 
  50 private float[] getOffset() {
  51     return getKernel().getVector(getInputNativeBounds(0), getInputTransform(0), getPass());
  52 }
  53 
  54 private FloatBuffer getWeights() {
  55     return getKernel().getWeights(getPass());
  56 }
  57 
  58 private int getWeightsArrayLength() {
  59     return getKernel().getWeightsArrayLength(getPass());
  60 }
  61 
  62 private float[] getShadowColor() {
  63     return getKernel().getShadowColorComponents(getPass());
  64 }
  65 >>
  66 
  67 param sampler img;
  68 param int count;
  69 // offset.x = dx offset between adjacent weighted convolution samples
  70 // offset.y = dy offset between adjacent weighted convolution samples
  71 // offset.z = dx offset to first weighted convolution sample
  72 // offset.w = dy offset to first weighted convolution sample
  73 param float4 offset;
  74 param float4 shadowColor;
  75 // value for each location in the offsets array:
  76 //   weights[i].x = weight for pos0 + offset + i*direction*4+0
  77 //   weights[i].y = weight for pos0 + offset + i*direction*4+1
  78 //   weights[i].z = weight for pos0 + offset + i*direction*4+2
  79 //   weights[i].w = weight for pos0 + offset + i*direction*4+3
  80 param float4 weights[%d];
  81 
  82 void main()
  83 {
  84     int i;
  85     float sum = 0.0;
  86     float2 loc = pos0 + offset.zw;
  87     unroll (%d, 0) for (i = 0; i < count; i++) {
  88         sum += weights[i].x * sample(img, loc).a;
  89         loc += offset.xy;
  90         sum += weights[i].y * sample(img, loc).a;
  91         loc += offset.xy;
  92         sum += weights[i].z * sample(img, loc).a;
  93         loc += offset.xy;
  94         sum += weights[i].w * sample(img, loc).a;
  95         loc += offset.xy;
  96     }
  97     sum = clamp(sum, 0.0, 1.0);
  98     color = sum * shadowColor;
  99 }


   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * 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
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  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
  23  * questions.
  24  */
  25 
  26 <<












  27 public Rectangle getResultBounds(com.sun.javafx.geom.transform.BaseTransform transform,
  28                                  com.sun.javafx.geom.Rectangle outputClip,
  29                                  com.sun.scenario.effect.ImageData... inputDatas)
  30 {
  31     return getRenderState().getPassResultBounds(inputDatas[0].getTransformedBounds(outputClip));
  32 }
  33 
  34 private int getCount() {
  35     return (getRenderState().getPassKernelSize() + 3) / 4;
  36 }
  37 
  38 private float[] getOffset() {
  39     return getRenderState().getPassVector();
  40 }
  41 
  42 private FloatBuffer getWeights() {
  43     return getRenderState().getPassWeights();
  44 }
  45 
  46 private int getWeightsArrayLength() {
  47     return getRenderState().getPassWeightsArrayLength();
  48 }
  49 
  50 private float[] getShadowColor() {
  51     return getRenderState().getPassShadowColorComponents();
  52 }
  53 >>
  54 
  55 param sampler img;
  56 param int count;
  57 // offset.x = dx offset between adjacent weighted convolution samples
  58 // offset.y = dy offset between adjacent weighted convolution samples
  59 // offset.z = dx offset to first weighted convolution sample
  60 // offset.w = dy offset to first weighted convolution sample
  61 param float4 offset;
  62 param float4 shadowColor;
  63 // value for each location in the offsets array:
  64 //   weights[i].x = weight for pos0 + offset.zw + (i*4+0)*offset.xy
  65 //   weights[i].y = weight for pos0 + offset.zw + (i*4+1)*offset.xy
  66 //   weights[i].z = weight for pos0 + offset.zw + (i*4+2)*offset.xy
  67 //   weights[i].w = weight for pos0 + offset.zw + (i*4+3)*offset.xy
  68 param float4 weights[%d];
  69 
  70 void main()
  71 {
  72     int i;
  73     float sum = 0.0;
  74     float2 loc = pos0 + offset.zw;
  75     unroll (%d, 0) for (i = 0; i < count; i++) {
  76         sum += weights[i].x * sample(img, loc).a;
  77         loc += offset.xy;
  78         sum += weights[i].y * sample(img, loc).a;
  79         loc += offset.xy;
  80         sum += weights[i].z * sample(img, loc).a;
  81         loc += offset.xy;
  82         sum += weights[i].w * sample(img, loc).a;
  83         loc += offset.xy;
  84     }
  85     sum = clamp(sum, 0.0, 1.0);
  86     color = sum * shadowColor;
  87 }