{"id":68772,"date":"2026-01-30T17:49:37","date_gmt":"2026-01-30T09:49:37","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/68772.html"},"modified":"2026-01-30T17:49:37","modified_gmt":"2026-01-30T09:49:37","slug":"%e3%80%90android-%e7%be%8e%e9%a2%9c%e7%9b%b8%e6%9c%ba%e3%80%91%e7%ac%ac%e4%ba%8c%e5%8d%81%e4%b8%89%e5%a4%a9%ef%bc%9agpuimagedarkenblendfilter%ef%bc%88%e5%8f%98%e6%9a%97%e6%b7%b7%e5%90%88%e6%bb%a4","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/68772.html","title":{"rendered":"\u3010Android \u7f8e\u989c\u76f8\u673a\u3011\u7b2c\u4e8c\u5341\u4e09\u5929\uff1aGPUImageDarkenBlendFilter\uff08\u53d8\u6697\u6df7\u5408\u6ee4\u955c\uff09"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260130094928-697c7ea84638b.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>GPUImageDarkenBlendFilter\u4ee3\u7801\u8be6\u89e3<\/h2>\n<p>GPUImageDarkenBlendFilter\u662f\u5b89\u5353\u5f00\u6e90\u5e93GPUImage\u4e2d\u7528\u4e8e\u5b9e\u73b0\u53d8\u6697\u6df7\u5408&#xff08;Darken Blend&#xff09; \u7684\u6ee4\u955c\u7c7b&#xff0c;\u57fa\u4e8eOpenGL ES\u7684GLSL\u7740\u8272\u5668\u5b9e\u73b0\u53cc\u7eb9\u7406\u50cf\u7d20\u7ea7\u6df7\u5408&#xff0c;\u6838\u5fc3\u903b\u8f91\u662f\u53d6\u4e24\u4e2a\u7eb9\u7406\u50cf\u7d20\u4e2d\u66f4\u6697\u7684\u989c\u8272\u4f5c\u4e3a\u6df7\u5408\u7ed3\u679c\u3002<\/p>\n<p>\u672c\u6587\u5c06\u9010\u884c\u89e3\u6790\u4ee3\u7801\u3001\u8bb2\u89e3\u6838\u5fc3\u539f\u7406&#xff0c;\u5e76\u7ed9\u51fa\u5b9e\u9645\u4f7f\u7528\u793a\u4f8b\u3002<\/p>\n<h3>\u5b8c\u6574\u4ee3\u7801&#xff08;\u9010\u884c\u6ce8\u91ca\u7248&#xff09;<\/h3>\n<p><span class=\"token comment\">\/*<br \/>\n * Copyright (C) 2018 CyberAgent, Inc.  \/\/ \u7248\u6743\u5f52\u5c5e&#xff1a;2018\u5e74CyberAgent&#xff08;\u65e5\u672c\u8d5b\u535a\u7279\u5de5&#xff09;\u516c\u53f8<br \/>\n *<br \/>\n * Licensed under the Apache License, Version 2.0 (the &#034;License&#034;);  \/\/ \u9075\u5faaApache 2.0\u5f00\u6e90\u534f\u8bae<br \/>\n * you may not use this file except in compliance with the License.  \/\/ \u4f7f\u7528\u4ee3\u7801\u5fc5\u987b\u9075\u5b88\u534f\u8bae\u6761\u6b3e<br \/>\n * You may obtain a copy of the License at  \/\/ \u534f\u8bae\u6587\u672c\u7684\u83b7\u53d6\u5730\u5740<br \/>\n *<br \/>\n * http:\/\/www.apache.org\/licenses\/LICENSE-2.0  \/\/ Apache 2.0\u534f\u8bae\u5b98\u65b9\u5730\u5740<br \/>\n *<br \/>\n * Unless required by applicable law or agreed to in writing, software  \/\/ \u9664\u975e\u6cd5\u5f8b\u5f3a\u5236\u8981\u6c42\u6216\u4e66\u9762\u7ea6\u5b9a<br \/>\n * distributed under the License is distributed on an &#034;AS IS&#034; BASIS,  \/\/ \u534f\u8bae\u4e0b\u5206\u53d1\u7684\u8f6f\u4ef6\u65e0\u4efb\u4f55\u62c5\u4fdd<br \/>\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  \/\/ \u65e0\u660e\u793a\/\u9ed8\u793a\u62c5\u4fdd&#xff08;\u5982\u9002\u9500\u6027\u3001\u7279\u5b9a\u7528\u9014\u9002\u914d&#xff09;<br \/>\n * See the License for the specific language governing permissions and  \/\/ \u5177\u4f53\u6743\u9650\/\u9650\u5236\u53c2\u8003\u534f\u8bae\u6587\u672c<br \/>\n * limitations under the License.  \/\/ \u534f\u8bae\u5b9a\u4e49\u7684\u4f7f\u7528\u9650\u5236<br \/>\n *\/<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5305\u8def\u5f84&#xff1a;CyberAgent\u7684GPUImage\u5e93\u6ee4\u955c\u6a21\u5757&#xff0c;\u6240\u6709\u6ee4\u955c\u7c7b\u5747\u5f52\u5c5e\u6b64\u5305<\/span><br \/>\n<span class=\"token keyword\">package<\/span> <span class=\"token namespace\">jp<span class=\"token punctuation\">.<\/span>co<span class=\"token punctuation\">.<\/span>cyberagent<span class=\"token punctuation\">.<\/span>android<span class=\"token punctuation\">.<\/span>gpuimage<span class=\"token punctuation\">.<\/span>filter<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u7ee7\u627fGPUImageTwoInputFilter&#xff1a;\u53cc\u8f93\u5165\u7eb9\u7406\u6ee4\u955c\u57fa\u7c7b&#xff08;\u652f\u6301\u4e24\u4e2a\u7eb9\u7406\u6df7\u5408&#xff0c;\u5982\u80cc\u666f&#043;\u524d\u666f&#xff09;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u5355\u8f93\u5165\u6ee4\u955c\u7ee7\u627fGPUImageFilter&#xff0c;\u53cc\u8f93\u5165\u9700\u7ee7\u627f\u6b64\u7c7b<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">GPUImageDarkenBlendFilter<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">GPUImageTwoInputFilter<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u53d8\u6697\u6df7\u5408\u7684\u7247\u6bb5\u7740\u8272\u5668\u5e38\u91cf&#xff08;GLSL\u8bed\u8a00&#xff09;&#xff0c;\u8fd0\u884c\u5728GPU\u4e0a\u5904\u7406\u6bcf\u4e2a\u50cf\u7d20\u7684\u989c\u8272<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">String<\/span> DARKEN_BLEND_FRAGMENT_SHADER <span class=\"token operator\">&#061;<\/span><br \/>\n        <span class=\"token string\">&#034;varying highp vec2 textureCoordinate;\\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span>  <span class=\"token comment\">\/\/ \u53d8\u91cf1&#xff1a;\u9876\u70b9\u7740\u8272\u5668\u4f20\u9012\u7684\u57fa\u7840\u7eb9\u7406&#xff08;\u7eb9\u74061&#xff09;\u5750\u6807&#xff0c;highp&#061;\u9ad8\u7cbe\u5ea6\u6d6e\u70b9&#xff0c;vec2&#061;\u4e8c\u7ef4\u5411\u91cf(UV)<\/span><br \/>\n        <span class=\"token string\">&#034; varying highp vec2 textureCoordinate2;\\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span>  <span class=\"token comment\">\/\/ \u53d8\u91cf2&#xff1a;\u9876\u70b9\u7740\u8272\u5668\u4f20\u9012\u7684\u53e0\u52a0\u7eb9\u7406&#xff08;\u7eb9\u74062&#xff09;\u5750\u6807<\/span><br \/>\n        <span class=\"token string\">&#034;\\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n        <span class=\"token string\">&#034; uniform sampler2D inputImageTexture;\\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span>  <span class=\"token comment\">\/\/ \u7eb9\u7406\u91c7\u6837\u56681&#xff1a;\u7ed1\u5b9a\u57fa\u7840\u7eb9\u7406&#xff08;\u5982\u80cc\u666f\u56fe&#xff09;<\/span><br \/>\n        <span class=\"token string\">&#034; uniform sampler2D inputImageTexture2;\\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span>  <span class=\"token comment\">\/\/ \u7eb9\u7406\u91c7\u6837\u56682&#xff1a;\u7ed1\u5b9a\u53e0\u52a0\u7eb9\u7406&#xff08;\u5982\u524d\u666f\u56fe&#xff09;<\/span><br \/>\n        <span class=\"token string\">&#034; \\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n        <span class=\"token string\">&#034; void main()\\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span>  <span class=\"token comment\">\/\/ GLSL\u4e3b\u51fd\u6570&#xff1a;\u6bcf\u4e2a\u50cf\u7d20\u90fd\u4f1a\u6267\u884c\u4e00\u6b21&#xff0c;\u662f\u7247\u6bb5\u7740\u8272\u5668\u7684\u5165\u53e3<\/span><br \/>\n        <span class=\"token string\">&#034; {\\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n        <span class=\"token string\">&#034;    lowp vec4 base &#061; texture2D(inputImageTexture, textureCoordinate);\\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span>  <span class=\"token comment\">\/\/ \u91c7\u6837\u57fa\u7840\u7eb9\u7406\u5f53\u524d\u50cf\u7d20\u989c\u8272&#xff1a;texture2D(\u91c7\u6837\u5668, \u5750\u6807)\u8fd4\u56devec4(RGBA)&#xff0c;lowp&#061;\u4f4e\u7cbe\u5ea6&#xff08;\u51cf\u5c11GPU\u5f00\u9500&#xff09;<\/span><br \/>\n        <span class=\"token string\">&#034;    lowp vec4 overlayer &#061; texture2D(inputImageTexture2, textureCoordinate2);\\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span>  <span class=\"token comment\">\/\/ \u91c7\u6837\u53e0\u52a0\u7eb9\u7406\u5f53\u524d\u50cf\u7d20\u989c\u8272<\/span><br \/>\n        <span class=\"token string\">&#034;    \\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n        <span class=\"token string\">&#034;    gl_FragColor &#061; vec4(min(overlayer.rgb * base.a, base.rgb * overlayer.a) &#043; overlayer.rgb * (1.0 &#8211; base.a) &#043; base.rgb * (1.0 &#8211; overlayer.a), 1.0);\\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span>  <span class=\"token comment\">\/\/ \u6838\u5fc3&#xff1a;\u8ba1\u7b97\u6df7\u5408\u540e\u989c\u8272&#xff0c;\u8d4b\u503c\u7ed9gl_FragColor&#xff08;GPU\u5185\u7f6e\u53d8\u91cf&#xff0c;\u5b58\u50a8\u6700\u7ec8\u50cf\u7d20\u989c\u8272&#xff09;<\/span><br \/>\n        <span class=\"token string\">&#034; }&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u65e0\u53c2\u6784\u9020\u51fd\u6570&#xff1a;\u521d\u59cb\u5316\u6ee4\u955c<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">GPUImageDarkenBlendFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u8c03\u7528\u7236\u7c7b\u6784\u9020\u51fd\u6570&#xff0c;\u4f20\u5165\u81ea\u5b9a\u4e49\u7247\u6bb5\u7740\u8272\u5668<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u7236\u7c7bGPUImageTwoInputFilter\u4f1a\u81ea\u52a8\u4f7f\u7528\u9ed8\u8ba4\u7684\u53cc\u8f93\u5165\u9876\u70b9\u7740\u8272\u5668&#xff08;\u5904\u7406\u7eb9\u7406\u5750\u6807\u4f20\u9012&#xff09;<\/span><br \/>\n        <span class=\"token keyword\">super<\/span><span class=\"token punctuation\">(<\/span>DARKEN_BLEND_FRAGMENT_SHADER<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u4ee3\u7801\u6a21\u5757\u5206\u6bb5\u89e3\u6790<\/h3>\n<h4>1. \u7248\u6743\u4e0e\u8bb8\u53ef\u58f0\u660e&#xff08;\u5934\u90e8\u6ce8\u91ca&#xff09;<\/h4>\n<p>\u8fd9\u662f\u5f00\u6e90\u9879\u76ee\u7684\u6807\u51c6\u58f0\u660e&#xff0c;\u6838\u5fc3\u4f5c\u7528&#xff1a;<\/p>\n<ul>\n<li>\u660e\u786e\u7248\u6743\u5f52\u5c5e&#xff08;CyberAgent\u516c\u53f8&#xff09;&#xff1b;<\/li>\n<li>\u89c4\u5b9a\u4f7f\u7528\u534f\u8bae&#xff08;Apache 2.0&#xff09;&#xff1a;\u5141\u8bb8\u5546\u7528\u3001\u4fee\u6539\u3001\u5206\u53d1&#xff0c;\u4f46\u9700\u4fdd\u7559\u58f0\u660e&#xff0c;\u4e14\u8f6f\u4ef6\u201c\u6309\u73b0\u72b6\u201d\u63d0\u4f9b&#xff0c;\u4f5c\u8005\u4e0d\u627f\u62c5\u8d23\u4efb\u3002<\/li>\n<\/ul>\n<h4>2. \u5305\u58f0\u660e<\/h4>\n<p>package jp.co.cyberagent.android.gpuimage.filter; \u6307\u5b9a\u7c7b\u5f52\u5c5e\u7684\u5305\u8def\u5f84&#xff0c;GPUImage\u5e93\u7684\u6240\u6709\u6ee4\u955c\u7c7b\u90fd\u96c6\u4e2d\u5728filter\u5305\u4e0b&#xff0c;\u4fbf\u4e8e\u7ba1\u7406\u548c\u5f15\u7528\u3002<\/p>\n<h4>3. \u7c7b\u5b9a\u4e49<\/h4>\n<p>public class GPUImageDarkenBlendFilter extends GPUImageTwoInputFilter<\/p>\n<ul>\n<li>\u7ee7\u627f\u5173\u7cfb&#xff1a;GPUImageTwoInputFilter\u662f\u5904\u7406\u53cc\u8f93\u5165\u7eb9\u7406\u7684\u57fa\u7c7b&#xff0c;\u9002\u7528\u4e8e\u201c\u4e24\u4e2a\u7eb9\u7406\u6df7\u5408\u201d\u7684\u573a\u666f&#xff08;\u5982\u80cc\u666f\u56fe&#043;\u524d\u666f\u8d34\u7eb8\u6df7\u5408&#xff09;&#xff1b;\u82e5\u4ec5\u5904\u7406\u5355\u7eb9\u7406&#xff08;\u5982\u4eae\u5ea6\u8c03\u6574&#xff09;&#xff0c;\u5219\u7ee7\u627fGPUImageFilter\u3002<\/li>\n<li>\u7c7b\u529f\u80fd&#xff1a;\u5b9e\u73b0\u201c\u53d8\u6697\u6df7\u5408\u201d\u2014\u2014\u6df7\u5408\u4e24\u4e2a\u7eb9\u7406\u7684\u50cf\u7d20\u65f6&#xff0c;\u53d6\u66f4\u6697\u7684\u989c\u8272\u503c\u4f5c\u4e3a\u6700\u7ec8\u7ed3\u679c\u3002<\/li>\n<\/ul>\n<h4>4. \u7247\u6bb5\u7740\u8272\u5668\u5e38\u91cf&#xff08;\u6838\u5fc3\u903b\u8f91&#xff09;<\/h4>\n<p>DARKEN_BLEND_FRAGMENT_SHADER\u662fGLSL&#xff08;OpenGL\u7740\u8272\u5668\u8bed\u8a00&#xff09;\u4ee3\u7801&#xff0c;\u8fd0\u884c\u5728GPU\u4e0a&#xff0c;\u8d1f\u8d23\u8ba1\u7b97\u6bcf\u4e2a\u50cf\u7d20\u7684\u6700\u7ec8\u989c\u8272&#xff0c;\u662f\u6ee4\u955c\u7684\u6838\u5fc3\u3002\u9010\u884c\u62c6\u89e3&#xff1a;<\/p>\n<table>\n<tr>\u4ee3\u7801\u884c\u6838\u5fc3\u542b\u4e49<\/tr>\n<tbody>\n<tr>\n<td>varying highp vec2 textureCoordinate<\/td>\n<td>\u9876\u70b9\u7740\u8272\u5668\u4f20\u9012\u7684\u57fa\u7840\u7eb9\u7406\u5750\u6807&#xff08;UV&#xff09;&#xff0c;varying\u8868\u793a\u53d8\u91cf\u5728\u9876\u70b9\/\u7247\u6bb5\u7740\u8272\u5668\u95f4\u63d2\u503c\u4f20\u9012&#xff0c;highp\u4fdd\u8bc1\u5750\u6807\u7cbe\u5ea6<\/td>\n<\/tr>\n<tr>\n<td>varying highp vec2 textureCoordinate2<\/td>\n<td>\u9876\u70b9\u7740\u8272\u5668\u4f20\u9012\u7684\u53e0\u52a0\u7eb9\u7406\u5750\u6807&#xff08;\u7b2c\u4e8c\u4e2a\u7eb9\u7406\u7684UV&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>uniform sampler2D inputImageTexture<\/td>\n<td>\u7eb9\u7406\u91c7\u6837\u5668&#xff1a;\u7ed1\u5b9a\u7b2c\u4e00\u4e2a\u8f93\u5165\u7eb9\u7406&#xff08;\u57fa\u7840\u7eb9\u7406&#xff0c;\u5982\u80cc\u666f\u56fe&#xff09;&#xff0c;uniform\u8868\u793a\u6574\u4e2a\u7740\u8272\u5668\u4e2d\u503c\u4e0d\u53d8<\/td>\n<\/tr>\n<tr>\n<td>uniform sampler2D inputImageTexture2<\/td>\n<td>\u7eb9\u7406\u91c7\u6837\u5668&#xff1a;\u7ed1\u5b9a\u7b2c\u4e8c\u4e2a\u8f93\u5165\u7eb9\u7406&#xff08;\u53e0\u52a0\u7eb9\u7406&#xff0c;\u5982\u524d\u666f\u56fe&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>void main()<\/td>\n<td>\u7247\u6bb5\u7740\u8272\u5668\u5165\u53e3&#xff0c;\u6bcf\u4e2a\u50cf\u7d20\u6267\u884c\u4e00\u6b21<\/td>\n<\/tr>\n<tr>\n<td>lowp vec4 base &#061; texture2D(&#8230;)<\/td>\n<td>\u91c7\u6837\u57fa\u7840\u7eb9\u7406\u5f53\u524d\u50cf\u7d20\u7684\u989c\u8272&#xff0c;\u8fd4\u56devec4(R, G, B, A)&#xff08;\u53d6\u503c0.0~1.0&#xff09;&#xff0c;lowp\u964d\u4f4e\u7cbe\u5ea6\u51cf\u5c11GPU\u5f00\u9500<\/td>\n<\/tr>\n<tr>\n<td>lowp vec4 overlayer &#061; texture2D(&#8230;)<\/td>\n<td>\u91c7\u6837\u53e0\u52a0\u7eb9\u7406\u5f53\u524d\u50cf\u7d20\u7684\u989c\u8272<\/td>\n<\/tr>\n<tr>\n<td>gl_FragColor &#061; vec4(&#8230;)<\/td>\n<td>\u6838\u5fc3\u6df7\u5408\u516c\u5f0f&#xff0c;\u6700\u7ec8\u50cf\u7d20\u989c\u8272\u8d4b\u503c\u7ed9gl_FragColor&#xff08;GPU\u5185\u7f6e\u53d8\u91cf&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5>\u6df7\u5408\u516c\u5f0f\u6df1\u5ea6\u89e3\u6790<\/h5>\n<p>min(overlayer.rgb * base.a, base.rgb * overlayer.a) &#043;<br \/>\noverlayer.rgb * (1.0 &#8211; base.a) &#043;<br \/>\nbase.rgb * (1.0 &#8211; overlayer.a)<\/p>\n<p>\u516c\u5f0f\u517c\u987e\u900f\u660e\u5ea6&#xff08;Alpha\u901a\u9053&#xff09; \u548c\u53d8\u6697\u6df7\u5408&#xff0c;\u62c6\u89e3&#xff1a;<\/p>\n<ul>\n<li>\u7b2c\u4e00\u90e8\u5206&#xff1a;min(overlayer.rgb * base.a, base.rgb * overlayer.a) \u6838\u5fc3\u201c\u53d8\u6697\u201d\u903b\u8f91&#xff1a;\u53e0\u52a0\u7eb9\u7406RGB \u00d7 \u57fa\u7840\u7eb9\u7406\u900f\u660e\u5ea6 \u4e0e \u57fa\u7840\u7eb9\u7406RGB \u00d7 \u53e0\u52a0\u7eb9\u7406\u900f\u660e\u5ea6 \u53d6\u6700\u5c0f\u503c&#xff08;\u66f4\u6697\u7684\u989c\u8272&#xff09;\u3002<\/li>\n<li>\u7b2c\u4e8c\u90e8\u5206&#xff1a;overlayer.rgb * (1.0 &#8211; base.a) \u57fa\u7840\u7eb9\u7406\u5b8c\u5168\u900f\u660e\u65f6&#xff08;base.a&#061;0&#xff09;&#xff0c;\u76f4\u63a5\u663e\u793a\u53e0\u52a0\u7eb9\u7406\u3002<\/li>\n<li>\u7b2c\u4e09\u90e8\u5206&#xff1a;base.rgb * (1.0 &#8211; overlayer.a) \u53e0\u52a0\u7eb9\u7406\u5b8c\u5168\u900f\u660e\u65f6&#xff08;overlayer.a&#061;0&#xff09;&#xff0c;\u76f4\u63a5\u663e\u793a\u57fa\u7840\u7eb9\u7406\u3002<\/li>\n<li>\u6700\u7ec8Alpha\u901a\u9053\u8bbe\u4e3a1.0&#xff08;\u5b8c\u5168\u4e0d\u900f\u660e&#xff09;&#xff0c;\u4e5f\u53ef\u6839\u636e\u9700\u6c42\u8c03\u6574\u4e3a\u6df7\u5408\u540e\u7684\u900f\u660e\u5ea6\u3002<\/li>\n<\/ul>\n<h4>5. \u6784\u9020\u51fd\u6570<\/h4>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token class-name\">GPUImageDarkenBlendFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">super<\/span><span class=\"token punctuation\">(<\/span>DARKEN_BLEND_FRAGMENT_SHADER<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<ul>\n<li>\u8c03\u7528\u7236\u7c7bGPUImageTwoInputFilter\u7684\u6784\u9020\u51fd\u6570&#xff0c;\u4f20\u5165\u81ea\u5b9a\u4e49\u7684\u7247\u6bb5\u7740\u8272\u5668&#xff1b;<\/li>\n<li>\u7236\u7c7b\u4f1a\u81ea\u52a8\u52a0\u8f7d\u9ed8\u8ba4\u7684\u53cc\u8f93\u5165\u9876\u70b9\u7740\u8272\u5668&#xff08;\u8d1f\u8d23\u7eb9\u7406\u5750\u6807\u7684\u4f20\u9012\u548c\u9876\u70b9\u6e32\u67d3&#xff09;&#xff0c;\u65e0\u9700\u91cd\u590d\u7f16\u5199&#xff1b;<\/li>\n<li>\u6784\u9020\u51fd\u6570\u6267\u884c\u540e&#xff0c;\u6ee4\u955c\u5b9e\u4f8b\u521d\u59cb\u5316\u5b8c\u6210&#xff0c;\u53ef\u76f4\u63a5\u7528\u4e8e\u7eb9\u7406\u6df7\u5408\u3002<\/li>\n<\/ul>\n<h3>\u5b9e\u9645\u4f7f\u7528\u793a\u4f8b<\/h3>\n<h4>1. \u524d\u7f6e\u6761\u4ef6<\/h4>\n<p>\u5728build.gradle\u4e2d\u5f15\u5165GPUImage\u5e93\u4f9d\u8d56&#xff08;\u4ee5\u6700\u65b0\u7a33\u5b9a\u7248\u4e3a\u4f8b&#xff09;&#xff1a;<\/p>\n<p>dependencies {<br \/>\n    implementation &#039;jp.co.cyberagent.android:gpuimage:2.1.0&#039;<br \/>\n}<\/p>\n<h4>2. \u5e03\u5c40\u6587\u4ef6&#xff08;\u663e\u793a\u5904\u7406\u540e\u7684\u56fe\u50cf&#xff09;<\/h4>\n<p><span class=\"token prolog\">&lt;?xml version&#061;&#034;1.0&#034; encoding&#061;&#034;utf-8&#034;?&gt;<\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>LinearLayout<\/span> <span class=\"token attr-name\"><span class=\"token namespace\">xmlns:<\/span>android<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>http:\/\/schemas.android.com\/apk\/res\/android<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n    <span class=\"token attr-name\"><span class=\"token namespace\">android:<\/span>layout_width<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>match_parent<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n    <span class=\"token attr-name\"><span class=\"token namespace\">android:<\/span>layout_height<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>match_parent<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>    <span class=\"token comment\">&lt;!&#8211; GPUImage\u5e93\u7684\u81ea\u5b9a\u4e49View&#xff0c;\u7528\u4e8e\u663e\u793aGPU\u5904\u7406\u540e\u7684\u56fe\u50cf\/\u89c6\u9891 &#8211;&gt;<\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>jp.co.cyberagent.android.gpuimage.GPUImageView<\/span><br \/>\n        <span class=\"token attr-name\"><span class=\"token namespace\">android:<\/span>id<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>&#064;&#043;id\/gpuImageView<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n        <span class=\"token attr-name\"><span class=\"token namespace\">android:<\/span>layout_width<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>match_parent<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n        <span class=\"token attr-name\"><span class=\"token namespace\">android:<\/span>layout_height<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>match_parent<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">\/&gt;<\/span><\/span><\/p>\n<p><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>LinearLayout<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<h4>3. \u4ee3\u7801\u5b9e\u73b0&#xff08;\u56fe\u7247\u53d8\u6697\u6df7\u5408&#xff09;<\/h4>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token namespace\">android<span class=\"token punctuation\">.<\/span>graphics<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Bitmap<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">android<span class=\"token punctuation\">.<\/span>graphics<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">BitmapFactory<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">android<span class=\"token punctuation\">.<\/span>os<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Bundle<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">androidx<span class=\"token punctuation\">.<\/span>appcompat<span class=\"token punctuation\">.<\/span>app<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">AppCompatActivity<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">jp<span class=\"token punctuation\">.<\/span>co<span class=\"token punctuation\">.<\/span>cyberagent<span class=\"token punctuation\">.<\/span>android<span class=\"token punctuation\">.<\/span>gpuimage<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">GPUImage<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">jp<span class=\"token punctuation\">.<\/span>co<span class=\"token punctuation\">.<\/span>cyberagent<span class=\"token punctuation\">.<\/span>android<span class=\"token punctuation\">.<\/span>gpuimage<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">GPUImageView<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">jp<span class=\"token punctuation\">.<\/span>co<span class=\"token punctuation\">.<\/span>cyberagent<span class=\"token punctuation\">.<\/span>android<span class=\"token punctuation\">.<\/span>gpuimage<span class=\"token punctuation\">.<\/span>filter<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">GPUImageDarkenBlendFilter<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">DarkenBlendDemo<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">AppCompatActivity<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">GPUImageView<\/span> gpuImageView<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">GPUImage<\/span> gpuImage<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">onCreate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Bundle<\/span> savedInstanceState<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">super<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">onCreate<\/span><span class=\"token punctuation\">(<\/span>savedInstanceState<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">setContentView<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">R<\/span><span class=\"token punctuation\">.<\/span>layout<span class=\"token punctuation\">.<\/span>activity_darken_blend<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 1. \u521d\u59cb\u5316GPUImageView\u548cGPUImage\u6838\u5fc3\u7c7b<\/span><br \/>\n        gpuImageView <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">findViewById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">R<\/span><span class=\"token punctuation\">.<\/span>id<span class=\"token punctuation\">.<\/span>gpuImageView<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        gpuImage <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">GPUImage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ GPUImage\u662f\u6ee4\u955c\u5904\u7406\u7684\u6838\u5fc3\u5165\u53e3<\/span><br \/>\n        gpuImage<span class=\"token punctuation\">.<\/span><span class=\"token function\">setGLSurfaceView<\/span><span class=\"token punctuation\">(<\/span>gpuImageView<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u7ed1\u5b9a\u663e\u793aView<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 2. \u52a0\u8f7d\u4e24\u4e2a\u8f93\u5165\u7eb9\u7406&#xff08;\u57fa\u7840\u56fe&#043;\u53e0\u52a0\u56fe&#xff09;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u57fa\u7840\u7eb9\u7406&#xff1a;\u80cc\u666f\u56fe&#xff08;res\/drawable\/background.png&#xff09;<\/span><br \/>\n        <span class=\"token class-name\">Bitmap<\/span> baseBitmap <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">BitmapFactory<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">decodeResource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">getResources<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">R<\/span><span class=\"token punctuation\">.<\/span>drawable<span class=\"token punctuation\">.<\/span>background<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u53e0\u52a0\u7eb9\u7406&#xff1a;\u524d\u666f\u56fe&#xff08;res\/drawable\/overlay.png&#xff09;<\/span><br \/>\n        <span class=\"token class-name\">Bitmap<\/span> overlayBitmap <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">BitmapFactory<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">decodeResource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">getResources<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">R<\/span><span class=\"token punctuation\">.<\/span>drawable<span class=\"token punctuation\">.<\/span>overlay<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 3. \u521b\u5efa\u53d8\u6697\u6df7\u5408\u6ee4\u955c\u5b9e\u4f8b<\/span><br \/>\n        <span class=\"token class-name\">GPUImageDarkenBlendFilter<\/span> darkenFilter <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">GPUImageDarkenBlendFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 4. \u8bbe\u7f6e\u6ee4\u955c\u5e76\u4f20\u5165\u53cc\u8f93\u5165\u7eb9\u7406<\/span><br \/>\n        gpuImage<span class=\"token punctuation\">.<\/span><span class=\"token function\">setFilter<\/span><span class=\"token punctuation\">(<\/span>darkenFilter<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u7ed1\u5b9a\u6ee4\u955c\u5230GPUImage<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4f20\u5165\u53cc\u7eb9\u7406&#xff1a;\u53c2\u65701&#061;\u57fa\u7840\u7eb9\u7406&#xff0c;\u53c2\u65702&#061;\u53e0\u52a0\u7eb9\u7406&#xff0c;\u53c2\u65703&#061;\u53cc\u8f93\u5165\u6ee4\u955c\u5b9e\u4f8b<\/span><br \/>\n        gpuImage<span class=\"token punctuation\">.<\/span><span class=\"token function\">setImage<\/span><span class=\"token punctuation\">(<\/span>baseBitmap<span class=\"token punctuation\">,<\/span> overlayBitmap<span class=\"token punctuation\">,<\/span> darkenFilter<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 5. \u89e6\u53d1\u6e32\u67d3&#xff0c;\u663e\u793a\u6df7\u5408\u540e\u7684\u56fe\u50cf<\/span><br \/>\n        gpuImageView<span class=\"token punctuation\">.<\/span><span class=\"token function\">requestRender<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>4. 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