sde: Interfaces for Snapdragon Display Engine (SDE)
1. Define SDE interfaces for hwc.
2. Define strategy manager interfaces for composition manager.
3. Define utility classes used by SDE.
Change-Id: I2985fbd05e824cb41ac9b03aa0114daac754d712
diff --git a/displayengine/include/utils/constants.h b/displayengine/include/utils/constants.h
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+++ b/displayengine/include/utils/constants.h
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+/*
+* Copyright (c) 2014, 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.
+*/
+
+#ifndef __CONSTANTS_H__
+#define __CONSTANTS_H__
+
+#define LIKELY(exp) __builtin_expect((exp) != 0, true)
+#define UNLIKELY(exp) __builtin_expect((exp) != 0, false)
+
+#define INT(exp) static_cast<int>(exp)
+#define FLOAT(exp) static_cast<float>(exp)
+#define UINT32(exp) static_cast<uint32_t>(exp)
+#define INT32(exp) static_cast<int32_t>(exp)
+
+#define STRUCT_VAR(struct_name, var_name) \
+ struct struct_name var_name; \
+ memset(&var_name, 0, sizeof(var_name));
+
+#define STRUCT_VAR_ARRAY(struct_name, var_name, num_var) \
+ struct struct_name var_name[num_var]; \
+ memset(&var_name[0], 0, sizeof(var_name));
+
+#define ROUND_UP(number, step) ((((number) + ((step) - 1)) / (step)) * (step))
+
+namespace sde {
+
+ typedef void * Handle;
+
+} // namespace sde
+
+#endif // __CONSTANTS_H__
+