auto import from //depot/cupcake/@135843
diff --git a/opengl/libagl/TextureObjectManager.cpp b/opengl/libagl/TextureObjectManager.cpp
new file mode 100644
index 0000000..ce31854
--- /dev/null
+++ b/opengl/libagl/TextureObjectManager.cpp
@@ -0,0 +1,309 @@
+/*
+ ** Copyright 2006, 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "context.h"
+#include "TextureObjectManager.h"
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+EGLTextureObject::EGLTextureObject()
+ : mCount(0), mSize(0)
+{
+ init();
+}
+
+EGLTextureObject::~EGLTextureObject()
+{
+ if (!direct) {
+ if (mSize && surface.data)
+ free(surface.data);
+ if (mMipmaps)
+ freeMipmaps();
+ }
+}
+
+void EGLTextureObject::init()
+{
+ memset(&surface, 0, sizeof(surface));
+ surface.version = sizeof(surface);
+ mMipmaps = 0;
+ mNumExtraLod = 0;
+ mIsComplete = false;
+ wraps = GL_REPEAT;
+ wrapt = GL_REPEAT;
+ min_filter = GL_LINEAR;
+ mag_filter = GL_LINEAR;
+ internalformat = 0;
+ memset(crop_rect, 0, sizeof(crop_rect));
+ generate_mipmap = GL_FALSE;
+ direct = GL_FALSE;
+}
+
+void EGLTextureObject::copyParameters(const sp<EGLTextureObject>& old)
+{
+ wraps = old->wraps;
+ wrapt = old->wrapt;
+ min_filter = old->min_filter;
+ mag_filter = old->mag_filter;
+ memcpy(crop_rect, old->crop_rect, sizeof(crop_rect));
+ generate_mipmap = old->generate_mipmap;
+ direct = old->direct;
+}
+
+status_t EGLTextureObject::allocateMipmaps()
+{
+ // here, by construction, mMipmaps=0 && mNumExtraLod=0
+
+ if (!surface.data)
+ return NO_INIT;
+
+ int w = surface.width;
+ int h = surface.height;
+ const int numLods = 31 - gglClz(max(w,h));
+ if (numLods <= 0)
+ return NO_ERROR;
+
+ mMipmaps = (GGLSurface*)malloc(numLods * sizeof(GGLSurface));
+ if (!mMipmaps)
+ return NO_MEMORY;
+
+ memset(mMipmaps, 0, numLods * sizeof(GGLSurface));
+ mNumExtraLod = numLods;
+ return NO_ERROR;
+}
+
+void EGLTextureObject::freeMipmaps()
+{
+ if (mMipmaps) {
+ for (int i=0 ; i<mNumExtraLod ; i++) {
+ if (mMipmaps[i].data) {
+ free(mMipmaps[i].data);
+ }
+ }
+ free(mMipmaps);
+ mMipmaps = 0;
+ mNumExtraLod = 0;
+ }
+}
+
+const GGLSurface& EGLTextureObject::mip(int lod) const
+{
+ if (lod<=0 || !mMipmaps)
+ return surface;
+ lod = min(lod-1, mNumExtraLod-1);
+ return mMipmaps[lod];
+}
+
+GGLSurface& EGLTextureObject::editMip(int lod)
+{
+ return const_cast<GGLSurface&>(mip(lod));
+}
+
+status_t EGLTextureObject::setSurface(GGLSurface const* s)
+{
+ // XXX: glFlush() on 's'
+ if (mSize && surface.data) {
+ free(surface.data);
+ }
+ surface = *s;
+ internalformat = 0;
+
+ // we should keep the crop_rect, but it's delicate because
+ // the new size of the surface could make it invalid.
+ // so for now, we just loose it.
+ memset(crop_rect, 0, sizeof(crop_rect));
+
+ // it would be nice if we could keep the generate_mipmap flag,
+ // we would have to generate them right now though.
+ generate_mipmap = GL_FALSE;
+
+ direct = GL_TRUE;
+ mSize = 0; // we don't own this surface
+ if (mMipmaps)
+ freeMipmaps();
+ mIsComplete = true;
+ return NO_ERROR;
+}
+
+status_t EGLTextureObject::reallocate(
+ GLint level, int w, int h, int s,
+ int format, int compressedFormat, int bpr)
+{
+ const size_t size = h * bpr;
+ if (level == 0)
+ {
+ if (size!=mSize || !surface.data) {
+ if (mSize && surface.data) {
+ free(surface.data);
+ }
+ surface.data = (GGLubyte*)malloc(size);
+ if (!surface.data) {
+ mSize = 0;
+ mIsComplete = false;
+ return NO_MEMORY;
+ }
+ mSize = size;
+ }
+ surface.version = sizeof(GGLSurface);
+ surface.width = w;
+ surface.height = h;
+ surface.stride = s;
+ surface.format = format;
+ surface.compressedFormat = compressedFormat;
+ if (mMipmaps)
+ freeMipmaps();
+ mIsComplete = true;
+ }
+ else
+ {
+ if (!mMipmaps) {
+ if (allocateMipmaps() != NO_ERROR)
+ return NO_MEMORY;
+ }
+
+ LOGW_IF(level-1 >= mNumExtraLod,
+ "specifying mipmap level %d, but # of level is %d",
+ level, mNumExtraLod+1);
+
+ GGLSurface& mipmap = editMip(level);
+ if (mipmap.data)
+ free(mipmap.data);
+
+ mipmap.data = (GGLubyte*)malloc(size);
+ if (!mipmap.data) {
+ memset(&mipmap, 0, sizeof(GGLSurface));
+ mIsComplete = false;
+ return NO_MEMORY;
+ }
+
+ mipmap.version = sizeof(GGLSurface);
+ mipmap.width = w;
+ mipmap.height = h;
+ mipmap.stride = s;
+ mipmap.format = format;
+ mipmap.compressedFormat = compressedFormat;
+
+ // check if the texture is complete
+ mIsComplete = true;
+ const GGLSurface* prev = &surface;
+ for (int i=0 ; i<mNumExtraLod ; i++) {
+ const GGLSurface* curr = mMipmaps + i;
+ if (curr->format != surface.format) {
+ mIsComplete = false;
+ break;
+ }
+
+ uint32_t w = (prev->width >> 1) ? : 1;
+ uint32_t h = (prev->height >> 1) ? : 1;
+ if (w != curr->width || h != curr->height) {
+ mIsComplete = false;
+ break;
+ }
+ prev = curr;
+ }
+ }
+ return NO_ERROR;
+}
+
+// ----------------------------------------------------------------------------
+
+EGLSurfaceManager::EGLSurfaceManager()
+ : TokenManager(), mCount(0)
+{
+}
+
+EGLSurfaceManager::~EGLSurfaceManager()
+{
+ // everything gets freed automatically here...
+}
+
+sp<EGLTextureObject> EGLSurfaceManager::createTexture(GLuint name)
+{
+ sp<EGLTextureObject> result;
+
+ Mutex::Autolock _l(mLock);
+ if (mTextures.indexOfKey(name) >= 0)
+ return result; // already exists!
+
+ result = new EGLTextureObject();
+
+ status_t err = mTextures.add(name, result);
+ if (err < 0)
+ result.clear();
+
+ return result;
+}
+
+sp<EGLTextureObject> EGLSurfaceManager::removeTexture(GLuint name)
+{
+ Mutex::Autolock _l(mLock);
+ const ssize_t index = mTextures.indexOfKey(name);
+ if (index >= 0) {
+ sp<EGLTextureObject> result(mTextures.valueAt(index));
+ mTextures.removeItemsAt(index);
+ return result;
+ }
+ return 0;
+}
+
+sp<EGLTextureObject> EGLSurfaceManager::replaceTexture(GLuint name)
+{
+ sp<EGLTextureObject> tex;
+ Mutex::Autolock _l(mLock);
+ const ssize_t index = mTextures.indexOfKey(name);
+ if (index >= 0) {
+ const sp<EGLTextureObject>& old = mTextures.valueAt(index);
+ const uint32_t refs = old->getStrongCount();
+ if (ggl_likely(refs == 1)) {
+ // we're the only owner
+ tex = old;
+ } else {
+ // keep the texture's parameters
+ tex = new EGLTextureObject();
+ tex->copyParameters(old);
+ mTextures.removeItemsAt(index);
+ mTextures.add(name, tex);
+ }
+ }
+ return tex;
+}
+
+void EGLSurfaceManager::deleteTextures(GLsizei n, const GLuint *tokens)
+{
+ // free all textures
+ Mutex::Autolock _l(mLock);
+ for (GLsizei i=0 ; i<n ; i++) {
+ const GLuint t(*tokens++);
+ if (t) {
+ mTextures.removeItem(t);
+ }
+ }
+}
+
+sp<EGLTextureObject> EGLSurfaceManager::texture(GLuint name)
+{
+ Mutex::Autolock _l(mLock);
+ const ssize_t index = mTextures.indexOfKey(name);
+ if (index >= 0)
+ return mTextures.valueAt(index);
+ return 0;
+}
+
+// ----------------------------------------------------------------------------
+}; // namespace android