mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-06-18 20:43:32 +00:00
8f9523eb38
This CL adds support for multisampled sampling on the D3D12 backend. This was already working on other backends. It also adds tests that all of the sample locations are correct. Bug: dawn:431 Change-Id: I6849e5e2d708ad4824e6db2665d668d43a4ef5ea Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23245 Commit-Queue: Austin Eng <enga@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
117 lines
4.2 KiB
C++
117 lines
4.2 KiB
C++
// Copyright 2017 The Dawn Authors
|
|
//
|
|
// 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 COMMON_COMPILER_H_
|
|
#define COMMON_COMPILER_H_
|
|
|
|
// Defines macros for compiler-specific functionality
|
|
// - DAWN_COMPILER_[CLANG|GCC|MSVC]: Compiler detection
|
|
// - DAWN_BREAKPOINT(): Raises an exception and breaks in the debugger
|
|
// - DAWN_BUILTIN_UNREACHABLE(): Hints the compiler that a code path is unreachable
|
|
// - DAWN_NO_DISCARD: An attribute that is C++17 [[nodiscard]] where available
|
|
// - DAWN_(UN)?LIKELY(EXPR): Where available, hints the compiler that the expression will be true
|
|
// (resp. false) to help it generate code that leads to better branch prediction.
|
|
// - DAWN_UNUSED(EXPR): Prevents unused variable/expression warnings on EXPR.
|
|
// - DAWN_UNUSED_FUNC(FUNC): Prevents unused function warnings on FUNC.
|
|
// - DAWN_DECLARE_UNUSED: Prevents unused function warnings a subsequent declaration.
|
|
// Both DAWN_UNUSED_FUNC and DAWN_DECLARE_UNUSED may be necessary, e.g. to suppress clang's
|
|
// unneeded-internal-declaration warning.
|
|
|
|
// Clang and GCC, check for __clang__ too to catch clang-cl masquarading as MSVC
|
|
#if defined(__GNUC__) || defined(__clang__)
|
|
# if defined(__clang__)
|
|
# define DAWN_COMPILER_CLANG
|
|
# else
|
|
# define DAWN_COMPILER_GCC
|
|
# endif
|
|
|
|
# if defined(__i386__) || defined(__x86_64__)
|
|
# define DAWN_BREAKPOINT() __asm__ __volatile__("int $3\n\t")
|
|
# else
|
|
// TODO(cwallez@chromium.org): Implement breakpoint on all supported architectures
|
|
# define DAWN_BREAKPOINT()
|
|
# endif
|
|
|
|
# define DAWN_BUILTIN_UNREACHABLE() __builtin_unreachable()
|
|
# define DAWN_LIKELY(x) __builtin_expect(!!(x), 1)
|
|
# define DAWN_UNLIKELY(x) __builtin_expect(!!(x), 0)
|
|
|
|
# if !defined(__has_cpp_attribute)
|
|
# define __has_cpp_attribute(name) 0
|
|
# endif
|
|
|
|
// Use warn_unused_result on clang otherwise we can a c++1z extension warning in C++14 mode
|
|
// Also avoid warn_unused_result with GCC because it is only a function attribute and not a type
|
|
// attribute.
|
|
# if __has_cpp_attribute(warn_unused_result) && defined(__clang__)
|
|
# define DAWN_NO_DISCARD __attribute__((warn_unused_result))
|
|
# elif DAWN_CPP_VERSION >= 17 && __has_cpp_attribute(nodiscard)
|
|
# define DAWN_NO_DISCARD [[nodiscard]]
|
|
# endif
|
|
|
|
# define DAWN_DECLARE_UNUSED __attribute__((unused))
|
|
# if defined(NDEBUG)
|
|
# define DAWN_FORCE_INLINE inline __attribute__((always_inline))
|
|
# endif
|
|
|
|
// MSVC
|
|
#elif defined(_MSC_VER)
|
|
# define DAWN_COMPILER_MSVC
|
|
|
|
extern void __cdecl __debugbreak(void);
|
|
# define DAWN_BREAKPOINT() __debugbreak()
|
|
|
|
# define DAWN_BUILTIN_UNREACHABLE() __assume(false)
|
|
|
|
// Visual Studio 2017 15.3 adds support for [[nodiscard]]
|
|
# if _MSC_VER >= 1911 && DAWN_CPP_VERSION >= 17
|
|
# define DAWN_NO_DISCARD [[nodiscard]]
|
|
# endif
|
|
|
|
# define DAWN_DECLARE_UNUSED
|
|
# if defined(NDEBUG)
|
|
# define DAWN_FORCE_INLINE __forceinline
|
|
# endif
|
|
|
|
#else
|
|
# error "Unsupported compiler"
|
|
#endif
|
|
|
|
// It seems that (void) EXPR works on all compilers to silence the unused variable warning.
|
|
#define DAWN_UNUSED(EXPR) (void)EXPR
|
|
// Likewise using static asserting on sizeof(&FUNC) seems to make it tagged as used
|
|
#define DAWN_UNUSED_FUNC(FUNC) static_assert(sizeof(&FUNC) == sizeof(void (*)()), "")
|
|
|
|
// Add noop replacements for macros for features that aren't supported by the compiler.
|
|
#if !defined(DAWN_LIKELY)
|
|
# define DAWN_LIKELY(X) X
|
|
#endif
|
|
#if !defined(DAWN_UNLIKELY)
|
|
# define DAWN_UNLIKELY(X) X
|
|
#endif
|
|
#if !defined(DAWN_NO_DISCARD)
|
|
# define DAWN_NO_DISCARD
|
|
#endif
|
|
#if !defined(DAWN_FORCE_INLINE)
|
|
# define DAWN_FORCE_INLINE inline
|
|
#endif
|
|
|
|
#if defined(__clang__)
|
|
# define DAWN_FALLTHROUGH [[clang::fallthrough]]
|
|
#else
|
|
# define DAWN_FALLTHROUGH
|
|
#endif
|
|
|
|
#endif // COMMON_COMPILER_H_
|