Example usage for android.opengl GLES10 glTexImage2D

Introduction

In this page you can find the example usage for android.opengl GLES10 glTexImage2D.

Prototype

public static native void glTexImage2D(int target, int level, int internalformat, int width, int height,
            int border, int format, int type, java.nio.Buffer pixels);

Source Link

Usage

From source file:com.adobe.plugins.FastCanvasRenderer.java

public void loadTexture(Bitmap bmp, int id) {
    if (bmp == null) {
        Log.i("CANVAS", "CanvasRenderer Aborting loadtexture " + id);
        return;//from  w w w  .  j  av  a2  s. co m
    }

    int[] glID = new int[1];
    GLES10.glGenTextures(1, glID, 0);
    GLES10.glBindTexture(GLES10.GL_TEXTURE_2D, glID[0]);
    GLES10.glTexParameterf(GLES10.GL_TEXTURE_2D, GLES10.GL_TEXTURE_MIN_FILTER, GLES10.GL_LINEAR);
    GLES10.glTexParameterf(GLES10.GL_TEXTURE_2D, GLES10.GL_TEXTURE_MAG_FILTER, GLES10.GL_LINEAR);

    int width = bmp.getWidth();
    int height = bmp.getHeight();
    int p2Width = 2;
    while (p2Width < width) {
        p2Width *= 2;
    }

    int p2Height = 2;
    while (p2Height < height) {
        p2Height *= 2;
    }

    if (width == p2Width && height == p2Height) {
        GLUtils.texImage2D(GLES10.GL_TEXTURE_2D, 0, bmp, 0);
    } else {
        Log.i("Canvas", "Canvas::AddTexture scaling texture " + id + " to power of 2");
        GLES10.glTexImage2D(GLES10.GL_TEXTURE_2D, 0, GLES10.GL_RGBA, p2Width, p2Height, 0, GLES10.GL_RGBA,
                GLES10.GL_UNSIGNED_BYTE, null);
        GLUtils.texSubImage2D(GLES10.GL_TEXTURE_2D, 0, 0, 0, bmp);
        width = p2Width;
        height = p2Height;
    }

    checkError();

    FastCanvasJNI.addTexture(id, glID[0], width, height);
    Log.i("CANVAS", "CanvasRenderer Leaving loadtexture " + id);
}

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