Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ffc2a4a7 authored by Angus Kong's avatar Angus Kong
Browse files

Add Raw2DTexture. 

Raw2DTexture is a wrapper of GL 2D texture. It also support copy other
texture's content into this texture.

bug:5988937

Change-Id: Ib4f6ff7ed2f6ea499517536366b511b7984a9b98
parent 3fb40bd6

src/com/android/gallery3d/ui/ExtTexture.java

+0 −1
Original line number Diff line number Diff line
@@ -16,7 +16,6 @@ 


package com.android.gallery3d.ui;



import android.graphics.SurfaceTexture;

import javax.microedition.khronos.opengles.GL11;

import javax.microedition.khronos.opengles.GL11Ext;

src/com/android/gallery3d/ui/GLId.java

+6 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
package com.android.gallery3d.ui;



import javax.microedition.khronos.opengles.GL11;

import javax.microedition.khronos.opengles.GL11ExtensionPack;



// This mimics corresponding GL functions.

public class GLId {
@@ -41,4 +42,9 @@ public class GLId { 
    public synchronized static void glDeleteBuffers(GL11 gl, int n, int[] buffers, int offset) {

        gl.glDeleteBuffers(n, buffers, offset);

    }



    public synchronized static void glDeleteFramebuffers(

            GL11ExtensionPack gl11ep, int n, int[] buffers, int offset) {

        gl11ep.glDeleteFramebuffersOES(n, buffers, offset);

    }

}

src/com/android/gallery3d/ui/Raw2DTexture.java

0 → 100644
+172 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2012 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 com.android.gallery3d.ui;



import android.opengl.GLU;



import java.nio.ByteBuffer;

import java.nio.ByteOrder;

import java.nio.FloatBuffer;

import javax.microedition.khronos.opengles.GL11;

import javax.microedition.khronos.opengles.GL11Ext;

import javax.microedition.khronos.opengles.GL11ExtensionPack;



/**

 * A wrapper class of GL 2D texture.

 */

public class Raw2DTexture extends BasicTexture {

    private static final int[] sTextureId = new int[1];

    // OpenGL related fields used when copy.

    private static final int[] sBufferName = new int[1];

    private int mFBO;  // Frame buffer object.



    // We need copy from another texture when in camera capture animation.

    // The copy is done through a framebuffer object with an attached

    // destination texture. The source texture is rendered to the framebuffer

    // and the data will be stored in the destination texture.

    public static void copy(GLCanvas canvas, BasicTexture src, Raw2DTexture dst) {

        int[] viewPort = new int[4];

        GL11 gl11 = canvas.getGLInstance();

        GL11ExtensionPack gl11ep = (GL11ExtensionPack) gl11;



        if (!dst.isLoaded(canvas)) {

            dst.prepare(canvas.getGLInstance());

        }



        gl11ep.glBindFramebufferOES(GL11ExtensionPack.GL_FRAMEBUFFER_OES, dst.mFBO);

        gl11ep.glFramebufferTexture2DOES(

                GL11ExtensionPack.GL_FRAMEBUFFER_OES,

                GL11ExtensionPack.GL_COLOR_ATTACHMENT0_OES,

                GL11.GL_TEXTURE_2D,

                dst.getId(), 0);

        checkFramebufferStatus(gl11ep);



        // Draw the source onto our destination.

        // The texture coords and vertex pointer are already set properly. We don't

        // need to set again.

        gl11.glBindTexture(src.getTarget(), src.getId());

        boolean targetEnabled = gl11.glIsEnabled(src.getTarget());

        gl11.glEnable(src.getTarget());

        boolean scissorEnabled = gl11.glIsEnabled(GL11.GL_SCISSOR_TEST);

        gl11.glDisable(GL11.GL_SCISSOR_TEST);



        // Set the texture matrix.

        gl11.glMatrixMode(GL11.GL_TEXTURE);

        gl11.glPushMatrix();

        gl11.glLoadIdentity();



        // Set the view port.

        gl11.glGetIntegerv(GL11.GL_VIEWPORT, viewPort, 0);

        gl11.glViewport(0, 0, dst.getTextureWidth(), dst.getTextureHeight());



        // Set the projection matrix.

        gl11.glMatrixMode(GL11.GL_PROJECTION);

        gl11.glPushMatrix();

        gl11.glLoadIdentity();

        GLU.gluOrtho2D(gl11, 0, 1, 0, 1);



        // Set the modelview matrix.

        gl11.glMatrixMode(GL11.GL_MODELVIEW);

        gl11.glPushMatrix();

        gl11.glLoadIdentity();



        // Draw the texture.

        gl11.glDrawArrays(GL11.GL_TRIANGLE_STRIP, 0, 4);



        // Clear.

        if (!targetEnabled) gl11.glDisable(src.getTarget());

        if (scissorEnabled) gl11.glEnable(GL11.GL_SCISSOR_TEST);

        gl11ep.glBindFramebufferOES(GL11ExtensionPack.GL_FRAMEBUFFER_OES, 0);

        gl11.glBindTexture(src.getTarget(), 0);

        gl11.glViewport(viewPort[0], viewPort[1], viewPort[2], viewPort[3]);

        gl11.glMatrixMode(GL11.GL_TEXTURE);

        gl11.glPopMatrix();

        gl11.glMatrixMode(GL11.GL_PROJECTION);

        gl11.glPopMatrix();

        gl11.glMatrixMode(GL11.GL_MODELVIEW);

        gl11.glPopMatrix();

        GLId.glDeleteFramebuffers(gl11ep, 1, dst.sBufferName, 0);

    }



    public Raw2DTexture(int w, int h) {

        setSize(w, h);

        GLId.glGenTextures(1, sTextureId, 0);

        mId = sTextureId[0];

        GLId.glGenBuffers(1, sBufferName, 0);

        mFBO = sBufferName[0];

    }



    private void prepare(GL11 gl11) {

        gl11.glBindTexture(GL11.GL_TEXTURE_2D, mId);

        gl11.glTexParameterf(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_S, GL11.GL_CLAMP_TO_EDGE);

        gl11.glTexParameterf(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T, GL11.GL_CLAMP_TO_EDGE);

        gl11.glTexParameterf(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR);

        gl11.glTexParameterf(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_LINEAR);

        gl11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA,

                getTextureWidth(), getTextureHeight(),

                0, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, null);

        gl11.glBindTexture(GL11.GL_TEXTURE_2D, 0);

        mState = UploadedTexture.STATE_LOADED;

    }



    @Override

    protected boolean onBind(GLCanvas canvas) {

        if (!isLoaded(canvas)) {

            return false;

        }



        return true;

    }



    @Override

    public int getTarget() {

        return GL11.GL_TEXTURE_2D;

    }



    public boolean isOpaque() {

        return true;

    }



    @Override

    public void yield() {

        // we cannot free the texture because we have no backup.

    }



    private static void checkFramebufferStatus(GL11ExtensionPack gl11ep) {

        int status = gl11ep.glCheckFramebufferStatusOES(GL11ExtensionPack.GL_FRAMEBUFFER_OES);

        if (status != GL11ExtensionPack.GL_FRAMEBUFFER_COMPLETE_OES) {

            String msg = "";

            switch (status) {

                case GL11ExtensionPack.GL_FRAMEBUFFER_INCOMPLETE_FORMATS_OES:

                    msg = "FRAMEBUFFER_FORMATS"; break;

                case GL11ExtensionPack.GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_OES:

                    msg = "FRAMEBUFFER_ATTACHMENT"; break;

                case GL11ExtensionPack.GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_OES:

                    msg = "FRAMEBUFFER_MISSING_ATTACHMENT"; break;

                case GL11ExtensionPack.GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_OES:

                    msg = "FRAMEBUFFER_DRAW_BUFFER"; break;

                case GL11ExtensionPack.GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_OES:

                    msg = "FRAMEBUFFER_READ_BUFFER"; break;

                case GL11ExtensionPack.GL_FRAMEBUFFER_UNSUPPORTED_OES:

                    msg = "FRAMEBUFFER_UNSUPPORTED"; break;

                case GL11ExtensionPack.GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_OES:

                    msg = "FRAMEBUFFER_INCOMPLETE_DIMENSIONS"; break;

            }

            throw new RuntimeException(msg + ":" + Integer.toHexString(status));

        }

    }

}

src/com/android/gallery3d/ui/SurfaceTextureScreenNail.java

+1 −6
Original line number Diff line number Diff line
@@ -19,16 +19,11 @@ package com.android.gallery3d.ui; 
import android.graphics.RectF;

import android.graphics.SurfaceTexture;

import android.opengl.GLES11Ext;

import android.util.Log;



import com.android.gallery3d.ui.GLCanvas;

import com.android.gallery3d.ui.ScreenNail;

import com.android.gallery3d.ui.ExtTexture;



public abstract class SurfaceTextureScreenNail implements ScreenNail,

        SurfaceTexture.OnFrameAvailableListener {

    private static final String TAG = "SurfaceTextureScreenNail";

    private ExtTexture mExtTexture;

    protected ExtTexture mExtTexture;

    private SurfaceTexture mSurfaceTexture;

    private int mWidth, mHeight;

    private float[] mTransform = new float[16];