move non-HAL definitions to syste/core/include

This patch moves camera- and graphics-related definitions out of the hardware
HAL layer and into system/core.  These definitions are used both by the HAL and
by higher-level code as well.  More functionality (e.g., audio definitions)
will be moved here as well.

Change-Id: I225f12374ce54fa393640dce53738267d0d703e9
Signed-off-by: Iliyan Malchev <malchev@google.com>
diff --git a/include/system/graphics.h b/include/system/graphics.h
new file mode 100644
index 0000000..fab6ec9
--- /dev/null
+++ b/include/system/graphics.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2011 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.
+ */
+
+#ifndef SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H
+#define SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H
+
+__BEGIN_DECLS
+
+/**
+ * pixel format definitions
+ */
+
+enum {
+    HAL_PIXEL_FORMAT_RGBA_8888          = 1,
+    HAL_PIXEL_FORMAT_RGBX_8888          = 2,
+    HAL_PIXEL_FORMAT_RGB_888            = 3,
+    HAL_PIXEL_FORMAT_RGB_565            = 4,
+    HAL_PIXEL_FORMAT_BGRA_8888          = 5,
+    HAL_PIXEL_FORMAT_RGBA_5551          = 6,
+    HAL_PIXEL_FORMAT_RGBA_4444          = 7,
+
+    /* 0x8 - 0xFF range unavailable */
+
+    /*
+     * 0x100 - 0x1FF
+     *
+     * This range is reserved for pixel formats that are specific to the HAL
+     * implementation.  Implementations can use any value in this range to
+     * communicate video pixel formats between their HAL modules.  These formats
+     * must not have an alpha channel.  Additionally, an EGLimage created from a
+     * gralloc buffer of one of these formats must be supported for use with the
+     * GL_OES_EGL_image_external OpenGL ES extension.
+     */
+
+    /*
+     * Android YUV format:
+     *
+     * This format is exposed outside of the HAL to software
+     * decoders and applications.
+     * EGLImageKHR must support it in conjunction with the
+     * OES_EGL_image_external extension.
+     *
+     * YV12 is 4:2:0 YCrCb planar format comprised of a WxH Y plane followed
+     * by (W/2) x (H/2) Cr and Cb planes.
+     *
+     * This format assumes
+     * - an even width
+     * - an even height
+     * - a horizontal stride multiple of 16 pixels
+     * - a vertical stride equal to the height
+     *
+     *   y_size = stride * height
+     *   c_size = ALIGN(stride/2, 16) * height/2
+     *   size = y_size + c_size * 2
+     *   cr_offset = y_size
+     *   cb_offset = y_size + c_size
+     *
+     */
+    HAL_PIXEL_FORMAT_YV12   = 0x32315659, // YCrCb 4:2:0 Planar
+
+
+
+    /* Legacy formats (deprecated), used by ImageFormat.java */
+    HAL_PIXEL_FORMAT_YCbCr_422_SP       = 0x10, // NV16
+    HAL_PIXEL_FORMAT_YCrCb_420_SP       = 0x11, // NV21
+    HAL_PIXEL_FORMAT_YCbCr_422_I        = 0x14, // YUY2
+};
+
+
+/**
+ * Transformation definitions
+ *
+ * IMPORTANT NOTE:
+ * HAL_TRANSFORM_ROT_90 is applied CLOCKWISE and AFTER HAL_TRANSFORM_FLIP_{H|V}.
+ *
+ */
+
+enum {
+    /* flip source image horizontally (around the vertical axis) */
+    HAL_TRANSFORM_FLIP_H    = 0x01,
+    /* flip source image vertically (around the horizontal axis)*/
+    HAL_TRANSFORM_FLIP_V    = 0x02,
+    /* rotate source image 90 degrees clockwise */
+    HAL_TRANSFORM_ROT_90    = 0x04,
+    /* rotate source image 180 degrees */
+    HAL_TRANSFORM_ROT_180   = 0x03,
+    /* rotate source image 270 degrees clockwise */
+    HAL_TRANSFORM_ROT_270   = 0x07,
+};
+
+__END_DECLS
+
+#endif /* SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H */