diff options
Diffstat (limited to 'src/com/android/camera/support/glrenderer/BasicTexture.java')
| -rw-r--r-- | src/com/android/camera/support/glrenderer/BasicTexture.java | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/src/com/android/camera/support/glrenderer/BasicTexture.java b/src/com/android/camera/support/glrenderer/BasicTexture.java deleted file mode 100644 index 39cc519c2..000000000 --- a/src/com/android/camera/support/glrenderer/BasicTexture.java +++ /dev/null @@ -1,197 +0,0 @@ -package com.android.camera.support.glrenderer; - - -import java.util.WeakHashMap; - -import com.android.camera.support.common.Utils; - -import android.util.Log; - -// BasicTexture is a Texture corresponds to a real GL texture. -// The state of a BasicTexture indicates whether its data is loaded to GL memory. -// If a BasicTexture is loaded into GL memory, it has a GL texture id. -public abstract class BasicTexture implements Texture { - - @SuppressWarnings("unused") - private static final String TAG = "BasicTexture"; - protected static final int UNSPECIFIED = -1; - - protected static final int STATE_UNLOADED = 0; - protected static final int STATE_LOADED = 1; - protected static final int STATE_ERROR = -1; - - // Log a warning if a texture is larger along a dimension - private static final int MAX_TEXTURE_SIZE = 4096; - - protected int mId = -1; - protected int mState; - - protected int mWidth = UNSPECIFIED; - protected int mHeight = UNSPECIFIED; - - protected int mTextureWidth; - protected int mTextureHeight; - - private boolean mHasBorder; - - protected GLCanvas mCanvasRef = null; - private static WeakHashMap<BasicTexture, Object> sAllTextures - = new WeakHashMap<BasicTexture, Object>(); - private static ThreadLocal sInFinalizer = new ThreadLocal(); - - protected BasicTexture(GLCanvas canvas, int id, int state) { - setAssociatedCanvas(canvas); - mId = id; - mState = state; - synchronized (sAllTextures) { - sAllTextures.put(this, null); - } - } - - protected BasicTexture() { - this(null, 0, STATE_UNLOADED); - } - - protected void setAssociatedCanvas(GLCanvas canvas) { - mCanvasRef = canvas; - } - - /** - * Sets the content size of this texture. In OpenGL, the actual texture - * size must be of power of 2, the size of the content may be smaller. - */ - public void setSize(int width, int height) { - mWidth = width; - mHeight = height; - mTextureWidth = width > 0 ? Utils.nextPowerOf2(width) : 0; - mTextureHeight = height > 0 ? Utils.nextPowerOf2(height) : 0; - if (mTextureWidth > MAX_TEXTURE_SIZE || mTextureHeight > MAX_TEXTURE_SIZE) { - Log.w(TAG, String.format("texture is too large: %d x %d", - mTextureWidth, mTextureHeight), new Exception()); - } - } - - public boolean isFlippedVertically() { - return false; - } - - public int getId() { - return mId; - } - - @Override - public int getWidth() { - return mWidth; - } - - @Override - public int getHeight() { - return mHeight; - } - - // Returns the width rounded to the next power of 2. - public int getTextureWidth() { - return mTextureWidth; - } - - // Returns the height rounded to the next power of 2. - public int getTextureHeight() { - return mTextureHeight; - } - - // Returns true if the texture has one pixel transparent border around the - // actual content. This is used to avoid jigged edges. - // - // The jigged edges appear because we use GL_CLAMP_TO_EDGE for texture wrap - // mode (GL_CLAMP is not available in OpenGL ES), so a pixel partially - // covered by the texture will use the color of the edge texel. If we add - // the transparent border, the color of the edge texel will be mixed with - // appropriate amount of transparent. - // - // Currently our background is black, so we can draw the thumbnails without - // enabling blending. - public boolean hasBorder() { - return mHasBorder; - } - - protected void setBorder(boolean hasBorder) { - mHasBorder = hasBorder; - } - - @Override - public void draw(GLCanvas canvas, int x, int y) { - canvas.drawTexture(this, x, y, getWidth(), getHeight()); - } - - @Override - public void draw(GLCanvas canvas, int x, int y, int w, int h) { - canvas.drawTexture(this, x, y, w, h); - } - - // onBind is called before GLCanvas binds this texture. - // It should make sure the data is uploaded to GL memory. - abstract protected boolean onBind(GLCanvas canvas); - - // Returns the GL texture target for this texture (e.g. GL_TEXTURE_2D). - abstract protected int getTarget(); - - public boolean isLoaded() { - return mState == STATE_LOADED; - } - - // recycle() is called when the texture will never be used again, - // so it can free all resources. - public void recycle() { - freeResource(); - } - - // yield() is called when the texture will not be used temporarily, - // so it can free some resources. - // The default implementation unloads the texture from GL memory, so - // the subclass should make sure it can reload the texture to GL memory - // later, or it will have to override this method. - public void yield() { - freeResource(); - } - - private void freeResource() { - GLCanvas canvas = mCanvasRef; - if (canvas != null && mId != -1) { - canvas.unloadTexture(this); - mId = -1; // Don't free it again. - } - mState = STATE_UNLOADED; - setAssociatedCanvas(null); - } - - @Override - protected void finalize() { - sInFinalizer.set(BasicTexture.class); - recycle(); - sInFinalizer.set(null); - } - - // This is for deciding if we can call Bitmap's recycle(). - // We cannot call Bitmap's recycle() in finalizer because at that point - // the finalizer of Bitmap may already be called so recycle() will crash. - public static boolean inFinalizer() { - return sInFinalizer.get() != null; - } - - public static void yieldAllTextures() { - synchronized (sAllTextures) { - for (BasicTexture t : sAllTextures.keySet()) { - t.yield(); - } - } - } - - public static void invalidateAllTextures() { - synchronized (sAllTextures) { - for (BasicTexture t : sAllTextures.keySet()) { - t.mState = STATE_UNLOADED; - t.setAssociatedCanvas(null); - } - } - } -} |