| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package androidx.media.filterfw; |
| |
| import android.graphics.Bitmap; |
| import android.opengl.GLES11Ext; |
| import android.opengl.GLES20; |
| |
| import java.nio.ByteBuffer; |
| |
| public class TextureSource { |
| |
| private int mTexId; |
| private int mTarget; |
| private boolean mIsOwner; |
| private boolean mIsAllocated = false; |
| |
| public static TextureSource fromTexture(int texId, int target) { |
| return new TextureSource(texId, target, false); |
| } |
| |
| public static TextureSource fromTexture(int texId) { |
| return new TextureSource(texId, GLES20.GL_TEXTURE_2D, false); |
| } |
| |
| public static TextureSource newTexture() { |
| return new TextureSource(GLToolbox.generateTexture(), GLES20.GL_TEXTURE_2D, true); |
| } |
| |
| public static TextureSource newExternalTexture() { |
| return new TextureSource(GLToolbox.generateTexture(), |
| GLES11Ext.GL_TEXTURE_EXTERNAL_OES, |
| true); |
| } |
| |
| public int getTextureId() { |
| return mTexId; |
| } |
| |
| public int getTarget() { |
| return mTarget; |
| } |
| |
| public void bind() { |
| GLES20.glBindTexture(mTarget, mTexId); |
| GLToolbox.checkGlError("glBindTexture"); |
| } |
| |
| public void allocate(int width, int height) { |
| //Log.i("TextureSource", "Allocating empty texture " + mTexId + ": " + width + "x" + height + "."); |
| GLToolbox.allocateTexturePixels(mTexId, mTarget, width, height); |
| mIsAllocated = true; |
| } |
| |
| public void allocateWithPixels(ByteBuffer pixels, int width, int height) { |
| //Log.i("TextureSource", "Uploading pixels to texture " + mTexId + ": " + width + "x" + height + "."); |
| GLToolbox.setTexturePixels(mTexId, mTarget, pixels, width, height); |
| mIsAllocated = true; |
| } |
| |
| public void allocateWithBitmapPixels(Bitmap bitmap) { |
| //Log.i("TextureSource", "Uploading pixels to texture " + mTexId + "!"); |
| GLToolbox.setTexturePixels(mTexId, mTarget, bitmap); |
| mIsAllocated = true; |
| } |
| |
| public void generateMipmaps() { |
| GLES20.glBindTexture(mTarget, mTexId); |
| GLES20.glTexParameteri(mTarget, |
| GLES20.GL_TEXTURE_MIN_FILTER, |
| GLES20.GL_LINEAR_MIPMAP_LINEAR); |
| GLES20.glGenerateMipmap(mTarget); |
| GLES20.glBindTexture(mTarget, 0); |
| } |
| |
| public void setParameter(int parameter, int value) { |
| GLES20.glBindTexture(mTarget, mTexId); |
| GLES20.glTexParameteri(mTarget, parameter, value); |
| GLES20.glBindTexture(mTarget, 0); |
| } |
| |
| /** |
| * @hide |
| */ |
| public void release() { |
| if (GLToolbox.isTexture(mTexId) && mIsOwner) { |
| GLToolbox.deleteTexture(mTexId); |
| } |
| mTexId = GLToolbox.textureNone(); |
| } |
| |
| @Override |
| public String toString() { |
| return "TextureSource(id=" + mTexId + ", target=" + mTarget + ")"; |
| } |
| |
| boolean isAllocated() { |
| return mIsAllocated; |
| } |
| |
| private TextureSource(int texId, int target, boolean isOwner) { |
| mTexId = texId; |
| mTarget = target; |
| mIsOwner = isOwner; |
| } |
| } |
| |