| /* |
| * Copyright (c) 2007-2011 Intel Corporation. All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| * IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| /** |
| * \file va_compat.h |
| * \brief The Compatibility API |
| * |
| * This file contains the \ref api_compat "Compatibility API". |
| */ |
| |
| #ifndef VA_COMPAT_H |
| #define VA_COMPAT_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * \defgroup api_compat Compatibility API |
| * |
| * The Compatibility API allows older programs that are not ported to |
| * the current API to still build and run correctly. In particular, |
| * this exposes older API to allow for backwards source compatibility. |
| * |
| * @{ |
| */ |
| |
| /** |
| * Makes a string literal out of the macro argument |
| */ |
| #define VA_CPP_HELPER_STRINGIFY(x) \ |
| VA_CPP_HELPER_STRINGIFY_(x) |
| #define VA_CPP_HELPER_STRINGIFY_(x) \ |
| #x |
| |
| /** |
| * Concatenates two macro arguments at preprocessing time. |
| */ |
| #define VA_CPP_HELPER_CONCAT(a, b) \ |
| VA_CPP_HELPER_CONCAT_(a, b) |
| #define VA_CPP_HELPER_CONCAT_(a, b) \ |
| a ## b |
| |
| /** |
| * Generates the number of macro arguments at preprocessing time. |
| * <http://groups.google.com/group/comp.std.c/browse_thread/thread/77ee8c8f92e4a3fb/346fc464319b1ee5> |
| * |
| * Note: this doesn't work for macros with no arguments |
| */ |
| #define VA_CPP_HELPER_N_ARGS(...) \ |
| VA_CPP_HELPER_N_ARGS_(__VA_ARGS__, VA_CPP_HELPER_N_ARGS_LIST_REV()) |
| #define VA_CPP_HELPER_N_ARGS_(...) \ |
| VA_CPP_HELPER_N_ARGS_LIST(__VA_ARGS__) |
| #define VA_CPP_HELPER_N_ARGS_LIST(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a12, a13, a14, a15, a16, N, ...) N |
| #define VA_CPP_HELPER_N_ARGS_LIST_REV() \ |
| 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 |
| |
| /** |
| * Generates a versioned function alias. |
| * |
| * VA_CPP_HELPER_ALIAS(vaSomeFunction, 0,32,0) will generate |
| * .symber vaSomeFunction_0_32_0, vaSomeFunction@VA_API_0.32.0 |
| */ |
| #define VA_CPP_HELPER_ALIAS(func, major, minor, micro) \ |
| VA_CPP_HELPER_ALIAS_(func, major, minor, micro, "@") |
| #define VA_CPP_HELPER_ALIAS_DEFAULT(func, major, minor, micro) \ |
| VA_CPP_HELPER_ALIAS_(func, major, minor, micro, "@@") |
| #define VA_CPP_HELPER_ALIAS_(func, major, minor, micro, binding) \ |
| asm(".symver " #func "_" #major "_" #minor "_" #micro ", " \ |
| #func binding "VA_API_" #major "." #minor "." #micro) |
| |
| /* vaCreateSurfaces() */ |
| |
| #ifndef VA_COMPAT_DISABLED |
| #define vaCreateSurfaces(dpy, ...) \ |
| VA_CPP_HELPER_CONCAT(vaCreateSurfaces, \ |
| VA_CPP_HELPER_N_ARGS(dpy, __VA_ARGS__)) \ |
| (dpy, __VA_ARGS__) |
| #endif |
| |
| #define vaCreateSurfaces6(dpy, width, height, format, num_surfaces, surfaces) \ |
| (vaCreateSurfaces)(dpy, format, width, height, surfaces, num_surfaces, \ |
| NULL, 0) |
| |
| #define vaCreateSurfaces8(dpy, format, width, height, surfaces, num_surfaces, attribs, num_attribs) \ |
| (vaCreateSurfaces)(dpy, format, width, height, surfaces, num_surfaces, \ |
| attribs, num_attribs) |
| |
| /*@}*/ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* VA_COMPAT_H */ |