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dockusandockusan
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Add filter blend color: Screen, Overlay, Multiply
- Blend photo with custom color without create new solid color bitmap. Ex: float[] mVec4RedColor = new float[]{1f,0f,0f,1f}; GPUImageOverlayColorBlendFilter filter = new GPUImageOverlayColorBlendFilter(mVec4RedColor);
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‎library/src/main/java/jp/co/cyberagent/android/gpuimage/filter/GPUImageMultiplyColorBlendFilter.java‎

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/*
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* Copyright (C) 2012 CyberAgent
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package jp.co.cyberagent.android.gpuimage;
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import android.opengl.GLES20;
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public class GPUImageMultiplyColorBlendFilter extends GPUImageFilter {
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public static final String MULTIPLY_COLOR_BLEND_FRAGMENT_SHADER = "varying highp vec2 textureCoordinate;\n" +
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" uniform sampler2D inputImageTexture;\n" +
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" uniform vec4 mColor;\n" +
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" \n" +
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" void main()\n" +
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" {\n" +
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" lowp vec4 base = texture2D(inputImageTexture, textureCoordinate);\n" +
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" \n" +
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" gl_FragColor = mColor * base + mColor * (1.0 - base.a) + base * (1.0 - mColor.a);\n" +
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" }";
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private float[] mColor;
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private int mColorLocation;
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public GPUImageMultiplyColorBlendFilter(final float[] mColor) {
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super(NO_FILTER_VERTEX_SHADER, MULTIPLY_COLOR_BLEND_FRAGMENT_SHADER);
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this.mColor = mColor;
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}
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public GPUImageMultiplyColorBlendFilter() {
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this(new float[]{0.0f, 0.0f, 0.0f, 0.0f});
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}
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@Override
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public void onInit() {
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super.onInit();
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mColorLocation = GLES20.glGetUniformLocation(getProgram(), "mColor");
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setBlendColor(mColor);
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}
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public void setBlendColor(final float[] color) {
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mColor = color;
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setFloatVec4(mColorLocation, mColor);
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}
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}

‎library/src/main/java/jp/co/cyberagent/android/gpuimage/filter/GPUImageOverlayColorBlendFilter.java‎

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/*
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* Copyright (C) 2012 CyberAgent
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package jp.co.cyberagent.android.gpuimage;
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import android.opengl.GLES20;
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public class GPUImageOverlayColorBlendFilter extends GPUImageFilter {
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public static final String OVERLAY_COLOR_BLEND_FRAGMENT_SHADER = "varying highp vec2 textureCoordinate;\n" +
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"\n" +
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" uniform sampler2D inputImageTexture;\n" +
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" uniform vec4 mVec4Color;\n" +
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" \n" +
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" void main()\n" +
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" {\n" +
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" mediump vec4 base = texture2D(inputImageTexture, textureCoordinate);\n" +
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" \n" +
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" mediump float ra;\n" +
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" if (2.0 * base.r < base.a) {\n" +
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" ra = 2.0 * mVec4Color.r * base.r + mVec4Color.r * (1.0 - base.a) + base.r * (1.0 - mVec4Color.a);\n" +
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" } else {\n" +
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" ra = mVec4Color.a * base.a - 2.0 * (base.a - base.r) * (mVec4Color.a - mVec4Color.r) + mVec4Color.r * (1.0 - base.a) + base.r * (1.0 - mVec4Color.a);\n" +
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" }\n" +
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" \n" +
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" mediump float ga;\n" +
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" if (2.0 * base.g < base.a) {\n" +
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" ga = 2.0 * mVec4Color.g * base.g + mVec4Color.g * (1.0 - base.a) + base.g * (1.0 - mVec4Color.a);\n" +
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" } else {\n" +
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" ga = mVec4Color.a * base.a - 2.0 * (base.a - base.g) * (mVec4Color.a - mVec4Color.g) + mVec4Color.g * (1.0 - base.a) + base.g * (1.0 - mVec4Color.a);\n" +
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" }\n" +
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" \n" +
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" mediump float ba;\n" +
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" if (2.0 * base.b < base.a) {\n" +
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" ba = 2.0 * mVec4Color.b * base.b + mVec4Color.b * (1.0 - base.a) + base.b * (1.0 - mVec4Color.a);\n" +
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" } else {\n" +
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" ba = mVec4Color.a * base.a - 2.0 * (base.a - base.b) * (mVec4Color.a - mVec4Color.b) + mVec4Color.b * (1.0 - base.a) + base.b * (1.0 - mVec4Color.a);\n" +
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" }\n" +
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" \n" +
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" gl_FragColor = vec4(ra, ga, ba, 1.0);\n" +
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" }";
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private float[] mVec4Color;
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private int mColorLocation;
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public GPUImageOverlayColorBlendFilter(final float[] mColor) {
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super(NO_FILTER_VERTEX_SHADER, OVERLAY_COLOR_BLEND_FRAGMENT_SHADER);
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this.mVec4Color = mColor;
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}
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public GPUImageOverlayColorBlendFilter() {
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this(new float[]{0.0f, 0.0f, 0.0f, 0.0f});
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}
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@Override
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public void onInit() {
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super.onInit();
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mColorLocation = GLES20.glGetUniformLocation(getProgram(), "mVec4Color");
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setBlendColor(mVec4Color);
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}
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public void setBlendColor(final float[] color) {
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mVec4Color = color;
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setFloatVec4(mColorLocation, mVec4Color);
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}
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}

‎library/src/main/java/jp/co/cyberagent/android/gpuimage/filter/GPUImageScreenColorBlendFilter.java‎

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/*
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* Copyright (C) 2012 CyberAgent
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package jp.co.cyberagent.android.gpuimage;
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import android.opengl.GLES20;
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public class GPUImageScreenColorBlendFilter extends GPUImageFilter {
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public static final String SCREEN_COLOR_BLEND_FRAGMENT_SHADER = "varying highp vec2 textureCoordinate;\n" +
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" varying highp vec2 textureCoordinate2;\n" +
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"\n" +
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" uniform sampler2D inputImageTexture;\n" +
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" uniform vec4 mVec4Color;\n" +
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" \n" +
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" void main()\n" +
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" {\n" +
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" mediump vec4 textureColor = texture2D(inputImageTexture, textureCoordinate);\n" +
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" mediump vec4 whiteColor = vec4(1.0);\n" +
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" gl_FragColor = whiteColor - ((whiteColor - mVec4Color) * (whiteColor - textureColor));\n" +
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" }";
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private float[] mVec4Color;
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private int mColorLocation;
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public GPUImageScreenColorBlendFilter(final float[] mColor) {
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super(NO_FILTER_VERTEX_SHADER, SCREEN_COLOR_BLEND_FRAGMENT_SHADER);
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this.mVec4Color = mColor;
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}
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public GPUImageScreenColorBlendFilter() {
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this(new float[]{0.0f, 0.0f, 0.0f, 0.0f});
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}
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@Override
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public void onInit() {
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super.onInit();
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mColorLocation = GLES20.glGetUniformLocation(getProgram(), "mVec4Color");
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setBlendColor(mVec4Color);
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}
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public void setBlendColor(final float[] color) {
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mVec4Color = color;
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setFloatVec4(mColorLocation, mVec4Color);
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}
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}

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