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gwt: implement GLMatrix.proj2D

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This commit is contained in:
Hannes Janetzek 2014-05-28 15:32:34 +02:00
parent ee5e6b511e
commit 5e1705e621
1 changed files with 14 additions and 4 deletions
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18
vtm-web/src/org/oscim/gdx/emu/org/oscim/renderer/GLMatrix.java
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@ -126,6 +126,18 @@ public class GLMatrix {
vec[2] = z; vec[2] = z;
} }
public void prj2D(float[] vec, int offset, int cnt) {
offset <<= 1;
cnt <<= 1;
for (int x = offset, y = x + 1; x < cnt + offset; x += 2, y += 2) {
float inv_w = 1.0f / (vec[x] * val[M30] + vec[y] * val[M31] + val[M33]);
float ox = (vec[x] * val[M00] + vec[y] * val[M01] + val[M03]) * inv_w;
vec[y] = (vec[x] * val[M10] + vec[y] * val[M11] + val[M13]) * inv_w;
vec[x] = ox;
}
}
/** /**
* Multiply rhs onto Matrix. * Multiply rhs onto Matrix.
* *
@ -341,8 +353,7 @@ public class GLMatrix {
// delete(pointer); // delete(pointer);
// } // }
/* /* Copyright (C) 2007 The Android Open Source Project
* Copyright (C) 2007 The Android Open Source Project
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -354,8 +365,7 @@ public class GLMatrix {
* distributed under the License is distributed on an "AS IS" BASIS, * distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and * See the License for the specific language governing permissions and
* limitations under the License. * limitations under the License. */
*/
/** /**
* Define a projection matrix in terms of six clip planes * Define a projection matrix in terms of six clip planes