gralloc: Add adreno_utils header

Add adreno_utils header to define Adreno pixel formats, which are
needed by gralloc to map HAL format to corresponding Adreno format.

Change-Id: I6d38f34583955e3990393801f1dca0dd9aa2013b
diff --git a/libgralloc/adreno_utils.h b/libgralloc/adreno_utils.h
new file mode 100644
index 0000000..6cb7810
--- /dev/null
+++ b/libgralloc/adreno_utils.h
@@ -0,0 +1,51 @@
+/*
+* Copyright (c) 2015, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without modification, are permitted
+* provided that the following conditions are met:
+*    * Redistributions of source code must retain the above copyright notice, this list of
+*      conditions and the following disclaimer.
+*    * Redistributions in binary form must reproduce the above copyright notice, this list of
+*      conditions and the following disclaimer in the documentation and/or other materials provided
+*      with the distribution.
+*    * Neither the name of The Linux Foundation nor the names of its contributors may be used to
+*      endorse or promote products derived from this software without specific prior written
+*      permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+// Adreno Pixel Formats
+typedef enum {
+
+    ADRENO_PIXELFORMAT_UNKNOWN       = 0,
+    ADRENO_PIXELFORMAT_R8G8B8A8      = 27,
+    ADRENO_PIXELFORMAT_R8G8B8A8_SRGB = 29,
+    ADRENO_PIXELFORMAT_B5G6R5        = 85,
+    ADRENO_PIXELFORMAT_B5G5R5A1      = 86,
+    ADRENO_PIXELFORMAT_B8G8R8A8      = 90,
+    ADRENO_PIXELFORMAT_B8G8R8A8_SRGB = 91,
+    ADRENO_PIXELFORMAT_B8G8R8X8_SRGB = 93,
+    ADRENO_PIXELFORMAT_NV12          = 103,
+    ADRENO_PIXELFORMAT_YUY2          = 107,
+    ADRENO_PIXELFORMAT_B4G4R4A4      = 115,
+    ADRENO_PIXELFORMAT_R8G8B8        = 508,  // GL_RGB8
+    ADRENO_PIXELFORMAT_A1B5G5R5      = 519,  // GL_RGB5_A1
+    ADRENO_PIXELFORMAT_R8G8B8X8_SRGB = 520,  // GL_SRGB8
+    ADRENO_PIXELFORMAT_R8G8B8_SRGB   = 521,  // GL_SRGB8
+    ADRENO_PIXELFORMAT_R5G6B5        = 610,  // RGBA version of B5G6R5
+    ADRENO_PIXELFORMAT_R5G5B5A1      = 611,  // RGBA version of B5G5R5A1
+    ADRENO_PIXELFORMAT_R4G4B4A4      = 612,  // RGBA version of B4G4R4A4
+    ADRENO_PIXELFORMAT_UYVY          = 614,  // YUV 4:2:2 packed progressive (1 plane)
+    ADRENO_PIXELFORMAT_NV21          = 619,
+    ADRENO_PIXELFORMAT_Y8U8V8A8      = 620,  // YUV 4:4:4 packed (1 plane)
+    ADRENO_PIXELFORMAT_Y8            = 625,  // Single 8-bit luma only channel YUV format
+
+} ADRENOPIXELFORMAT;