From d24b8183b93e781080b2c16c487e60d51c12da31 Mon Sep 17 00:00:00 2001
From: The Android Open Source Project <initial-contribution@android.com>
Date: Tue, 10 Feb 2009 15:44:00 -0800
Subject: auto import from //branches/cupcake/...@130745

---
 libs/ui/PixelFormat.cpp | 33 ++++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

(limited to 'libs/ui/PixelFormat.cpp')

diff --git a/libs/ui/PixelFormat.cpp b/libs/ui/PixelFormat.cpp
index 605c8ae..b65ed97 100644
--- a/libs/ui/PixelFormat.cpp
+++ b/libs/ui/PixelFormat.cpp
@@ -19,6 +19,18 @@
 
 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;
@@ -47,7 +59,25 @@ status_t getPixelFormatInfo(PixelFormat format, PixelFormatInfo* info)
     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;
@@ -59,6 +89,7 @@ status_t getPixelFormatInfo(PixelFormat format, PixelFormatInfo* info)
     info->l_green       = i->gl;
     info->h_blue        = i->bh;
     info->l_blue        = i->bl;
+
     return NO_ERROR;
 }
 
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