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149 changes: 149 additions & 0 deletions
149
libWSLive/src/main/java/me/lake/librestreaming/ws/filter/hardfilter/WatermarkFilter.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,149 @@ | ||
| package me.lake.librestreaming.ws.filter.hardfilter; | ||
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| import android.graphics.Bitmap; | ||
| import android.graphics.Rect; | ||
| import android.graphics.RectF; | ||
| import android.opengl.GLES11Ext; | ||
| import android.opengl.GLES20; | ||
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| import java.nio.FloatBuffer; | ||
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| import me.lake.librestreaming.filter.hardvideofilter.BaseHardVideoFilter; | ||
| import me.lake.librestreaming.tools.GLESTools; | ||
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| public class WatermarkFilter extends BaseHardVideoFilter { | ||
| protected int glProgram; | ||
| protected int glCamTextureLoc; | ||
| protected int glCamPostionLoc; | ||
| protected int glCamTextureCoordLoc; | ||
| protected int glImageTextureLoc; | ||
| protected int glImageRectLoc; | ||
| protected String vertexShader_filter = "" + | ||
| "attribute vec4 aCamPosition;\n" + | ||
| "attribute vec2 aCamTextureCoord;\n" + | ||
| "varying vec2 vCamTextureCoord;\n" + | ||
| "void main(){\n" + | ||
| " gl_Position= aCamPosition;\n" + | ||
| " vCamTextureCoord = aCamTextureCoord;\n" + | ||
| "}"; | ||
| protected String fragmentshader_filter = "" + | ||
| "precision mediump float;\n" + | ||
| "varying mediump vec2 vCamTextureCoord;\n" + | ||
| "uniform sampler2D uCamTexture;\n" + | ||
| "uniform sampler2D uImageTexture;\n" + | ||
| "uniform vec4 imageRect;\n" + | ||
| "void main(){\n" + | ||
| " lowp vec4 c1 = texture2D(uCamTexture, vCamTextureCoord);\n" + | ||
| " lowp vec2 vCamTextureCoord2 = vec2(vCamTextureCoord.x,1.0-vCamTextureCoord.y);\n" + | ||
| " if(vCamTextureCoord2.x>imageRect.r && vCamTextureCoord2.x<imageRect.b && vCamTextureCoord2.y>imageRect.g && vCamTextureCoord2.y<imageRect.a)\n" + | ||
| " {\n" + | ||
| " vec2 imagexy = vec2((vCamTextureCoord2.x-imageRect.r)/(imageRect.b-imageRect.r),(vCamTextureCoord2.y-imageRect.g)/(imageRect.a-imageRect.g));\n" + | ||
| " lowp vec4 c2 = texture2D(uImageTexture, imagexy);\n" + | ||
| " lowp vec4 outputColor = c2+c1*c1.a*(1.0-c2.a);\n" + | ||
| " outputColor.a = 1.0;\n" + | ||
| " gl_FragColor = outputColor;\n" + | ||
| " }else\n" + | ||
| " {\n" + | ||
| " gl_FragColor = c1;\n" + | ||
| " }\n" + | ||
| "}"; | ||
| protected int imageTexture = GLESTools.NO_TEXTURE; | ||
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| protected final Object syncBitmap = new Object(); | ||
| protected Bitmap iconBitmap; | ||
| protected boolean needUpdate; | ||
| protected RectF iconRectF; | ||
| protected Rect iconRect; | ||
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| public WatermarkFilter(Bitmap _bitmap, Rect _rect) { | ||
| iconBitmap = _bitmap; | ||
| needUpdate = true; | ||
| iconRectF = new RectF(); | ||
| iconRect = _rect; | ||
| } | ||
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| protected WatermarkFilter() { | ||
| iconBitmap = null; | ||
| needUpdate = false; | ||
| iconRectF = new RectF(0,0,0,0); | ||
| } | ||
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| public void updateIcon(Bitmap _bitmap, Rect _rect) { | ||
| synchronized (syncBitmap) { | ||
| if (_bitmap != null) { | ||
| iconBitmap = _bitmap; | ||
| needUpdate = true; | ||
| } | ||
| if (_rect != null) { | ||
| iconRect = _rect; | ||
| } | ||
| } | ||
| } | ||
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| @Override | ||
| public void onInit(int VWidth, int VHeight) { | ||
| super.onInit(VWidth, VHeight); | ||
| glProgram = GLESTools.createProgram(vertexShader_filter, fragmentshader_filter); | ||
| GLES20.glUseProgram(glProgram); | ||
| glCamTextureLoc = GLES20.glGetUniformLocation(glProgram, "uCamTexture"); | ||
| glImageTextureLoc = GLES20.glGetUniformLocation(glProgram, "uImageTexture"); | ||
| glCamPostionLoc = GLES20.glGetAttribLocation(glProgram, "aCamPosition"); | ||
| glCamTextureCoordLoc = GLES20.glGetAttribLocation(glProgram, "aCamTextureCoord"); | ||
| glImageRectLoc = GLES20.glGetUniformLocation(glProgram, "imageRect"); | ||
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| } | ||
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| @Override | ||
| public void onDraw(int cameraTexture, int targetFrameBuffer, FloatBuffer shapeBuffer, FloatBuffer textrueBuffer) { | ||
| synchronized (syncBitmap) { | ||
| if (needUpdate) { | ||
| if (imageTexture != GLESTools.NO_TEXTURE) { | ||
| GLES20.glDeleteTextures(1, new int[]{imageTexture}, 0); | ||
| } | ||
| imageTexture = GLESTools.loadTexture(iconBitmap, GLESTools.NO_TEXTURE); | ||
| } | ||
| } | ||
| iconRectF.top = iconRect.top / (float) SIZE_HEIGHT; | ||
| iconRectF.bottom = iconRect.bottom / (float) SIZE_HEIGHT; | ||
| iconRectF.left = iconRect.left / (float) SIZE_WIDTH; | ||
| iconRectF.right = iconRect.right / (float) SIZE_WIDTH; | ||
| GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, targetFrameBuffer); | ||
| GLES20.glUseProgram(glProgram); | ||
| GLES20.glUniform4f(glImageRectLoc, iconRectF.left, iconRectF.top, iconRectF.right, iconRectF.bottom); | ||
| GLES20.glActiveTexture(GLES20.GL_TEXTURE0); | ||
| GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, cameraTexture); | ||
| GLES20.glUniform1i(glCamTextureLoc, 0); | ||
| GLES20.glActiveTexture(GLES20.GL_TEXTURE1); | ||
| GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, imageTexture); | ||
| GLES20.glUniform1i(glImageTextureLoc, 1); | ||
| GLES20.glEnableVertexAttribArray(glCamPostionLoc); | ||
| GLES20.glEnableVertexAttribArray(glCamTextureCoordLoc); | ||
| shapeBuffer.position(0); | ||
| GLES20.glVertexAttribPointer(glCamPostionLoc, 2, | ||
| GLES20.GL_FLOAT, false, | ||
| 2 * 4, shapeBuffer); | ||
| textrueBuffer.position(0); | ||
| GLES20.glVertexAttribPointer(glCamTextureCoordLoc, 2, | ||
| GLES20.GL_FLOAT, false, | ||
| 2 * 4, textrueBuffer); | ||
| GLES20.glViewport(0, 0, SIZE_WIDTH, SIZE_HEIGHT); | ||
| GLES20.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); | ||
| GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT); | ||
| GLES20.glDrawElements(GLES20.GL_TRIANGLES, drawIndecesBuffer.limit(), GLES20.GL_UNSIGNED_SHORT, drawIndecesBuffer); | ||
| GLES20.glFinish(); | ||
| GLES20.glDisableVertexAttribArray(glCamPostionLoc); | ||
| GLES20.glDisableVertexAttribArray(glCamTextureCoordLoc); | ||
| GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, 0); | ||
| GLES20.glUseProgram(0); | ||
| GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0); | ||
| } | ||
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| @Override | ||
| public void onDestroy() { | ||
| super.onDestroy(); | ||
| GLES20.glDeleteProgram(glProgram); | ||
| GLES20.glDeleteTextures(1, new int[]{imageTexture}, 0); | ||
| } | ||
| } |