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