auto import from //depot/cupcake/@135843
diff --git a/libs/ui/PixelFormat.cpp b/libs/ui/PixelFormat.cpp
new file mode 100644
index 0000000..b65ed97
--- /dev/null
+++ b/libs/ui/PixelFormat.cpp
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2007 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 <ui/PixelFormat.h>
+#include <pixelflinger/format.h>
+
+namespace android {
+
+size_t PixelFormatInfo::getScanlineSize(unsigned int width) const
+{
+ size_t size;
+ if ((components >= 6) && (components <= 8)) {
+ // YCbCr formats are differents.
+ size = (width * bitsPerPixel)>>3;
+ } else {
+ size = width * bytesPerPixel;
+ }
+ return size;
+}
+
+ssize_t bytesPerPixel(PixelFormat format)
+{
+ PixelFormatInfo info;
+ status_t err = getPixelFormatInfo(format, &info);
+ return (err < 0) ? err : info.bytesPerPixel;
+}
+
+ssize_t bitsPerPixel(PixelFormat format)
+{
+ PixelFormatInfo info;
+ status_t err = getPixelFormatInfo(format, &info);
+ return (err < 0) ? err : info.bitsPerPixel;
+}
+
+status_t getPixelFormatInfo(PixelFormat format, PixelFormatInfo* info)
+{
+ if (format < 0)
+ return BAD_VALUE;
+
+ if (info->version != sizeof(PixelFormatInfo))
+ return INVALID_OPERATION;
+
+ size_t numEntries;
+ const GGLFormat *i = gglGetPixelFormatTable(&numEntries) + format;
+ bool valid = uint32_t(format) < numEntries;
+ if (!valid) {
+ return BAD_INDEX;
+ }
+
+ #define COMPONENT(name) \
+ case GGL_##name: info->components = PixelFormatInfo::name; break;
+
+ switch (i->components) {
+ COMPONENT(ALPHA)
+ COMPONENT(RGB)
+ COMPONENT(RGBA)
+ COMPONENT(LUMINANCE)
+ COMPONENT(LUMINANCE_ALPHA)
+ COMPONENT(Y_CB_CR_SP)
+ COMPONENT(Y_CB_CR_P)
+ COMPONENT(Y_CB_CR_I)
+ default:
+ return BAD_INDEX;
+ }
+
+ #undef COMPONENT
+
+ info->format = format;
+ info->bytesPerPixel = i->size;
+ info->bitsPerPixel = i->bitsPerPixel;
+ info->h_alpha = i->ah;
+ info->l_alpha = i->al;
+ info->h_red = i->rh;
+ info->l_red = i->rl;
+ info->h_green = i->gh;
+ info->l_green = i->gl;
+ info->h_blue = i->bh;
+ info->l_blue = i->bl;
+
+ return NO_ERROR;
+}
+
+}; // namespace android
+