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core: Remove outdated MSVC workarounds (#5099) 

* core/hw/gpu: Remove outdated MSVC workarounds

* core/hle/service/hid: Remove MSVC workaround
This commit is contained in:
Marshall Mohror 2020-02-20 13:40:21 -06:00 committed by GitHub
parent 4991c0121a
commit 996f1546b2
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 2 additions and 40 deletions
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7
src/core/hle/service/hid/hid.h
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@ -6,9 +6,7 @@
#include <array>
#include <atomic>
#ifndef _MSC_VER
#include <cstddef>
#endif
#include <memory>
#include "common/bit_field.h"
#include "common/common_funcs.h"
@ -177,10 +175,6 @@ struct GyroscopeCalibrateParam {
} x, y, z;
};
// TODO: MSVC does not support using offsetof() on non-static data members even though this
// is technically allowed since C++11. This macro should be enabled once MSVC adds
// support for that.
#ifndef _MSC_VER
#define ASSERT_REG_POSITION(field_name, position) \
static_assert(offsetof(SharedMem, field_name) == position * 4, \
"Field " #field_name " has invalid position")
@ -189,7 +183,6 @@ ASSERT_REG_POSITION(pad.index_reset_ticks, 0x0);
ASSERT_REG_POSITION(touch.index_reset_ticks, 0x2A);
#undef ASSERT_REG_POSITION
#endif // !defined(_MSC_VER)
struct DirectionState {
bool up;

4
src/core/hw/gpu.cpp
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@ -402,8 +402,8 @@ inline void Write(u32 addr, const T data) {
switch (index) {
// Memory fills are triggered once the fill value is written.
case GPU_REG_INDEX_WORKAROUND(memory_fill_config[0].trigger, 0x00004 + 0x3):
case GPU_REG_INDEX_WORKAROUND(memory_fill_config[1].trigger, 0x00008 + 0x3): {
case GPU_REG_INDEX(memory_fill_config[0].trigger):
case GPU_REG_INDEX(memory_fill_config[1].trigger): {
const bool is_second_filler = (index != GPU_REG_INDEX(memory_fill_config[0].trigger));
auto& config = g_regs.memory_fill_config[is_second_filler];

31
src/core/hw/gpu.h
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@ -20,41 +20,15 @@ namespace GPU {
constexpr float SCREEN_REFRESH_RATE = 60;
// Returns index corresponding to the Regs member labeled by field_name
// TODO: Due to Visual studio bug 209229, offsetof does not return constant expressions
// when used with array elements (e.g. GPU_REG_INDEX(memory_fill_config[0])).
// For details cf.
// https://connect.microsoft.com/VisualStudio/feedback/details/209229/offsetof-does-not-produce-a-constant-expression-for-array-members
// Hopefully, this will be fixed sometime in the future.
// For lack of better alternatives, we currently hardcode the offsets when constant
// expressions are needed via GPU_REG_INDEX_WORKAROUND (on sane compilers, static_asserts
// will then make sure the offsets indeed match the automatically calculated ones).
#define GPU_REG_INDEX(field_name) (offsetof(GPU::Regs, field_name) / sizeof(u32))
#if defined(_MSC_VER)
#define GPU_REG_INDEX_WORKAROUND(field_name, backup_workaround_index) (backup_workaround_index)
#else
// NOTE: Yeah, hacking in a static_assert here just to workaround the lacking MSVC compiler
// really is this annoying. This macro just forwards its first argument to GPU_REG_INDEX
// and then performs a (no-op) cast to std::size_t iff the second argument matches the
// expected field offset. Otherwise, the compiler will fail to compile this code.
#define GPU_REG_INDEX_WORKAROUND(field_name, backup_workaround_index) \
((typename std::enable_if<backup_workaround_index == GPU_REG_INDEX(field_name), \
std::size_t>::type) GPU_REG_INDEX(field_name))
#endif
// MMIO region 0x1EFxxxxx
struct Regs {
// helper macro to make sure the defined structures are of the expected size.
#if defined(_MSC_VER)
// TODO: MSVC does not support using sizeof() on non-static data members even though this
// is technically allowed since C++11. This macro should be enabled once MSVC adds
// support for that.
#define ASSERT_MEMBER_SIZE(name, size_in_bytes)
#else
#define ASSERT_MEMBER_SIZE(name, size_in_bytes) \
static_assert(sizeof(name) == size_in_bytes, \
"Structure size and register block length don't match")
#endif
// Components are laid out in reverse byte order, most significant bits first.
enum class PixelFormat : u32 {
@ -299,10 +273,6 @@ private:
};
static_assert(std::is_standard_layout<Regs>::value, "Structure does not use standard layout");
// TODO: MSVC does not support using offsetof() on non-static data members even though this
// is technically allowed since C++11. This macro should be enabled once MSVC adds
// support for that.
#ifndef _MSC_VER
#define ASSERT_REG_POSITION(field_name, position) \
static_assert(offsetof(Regs, field_name) == position * 4, \
"Field " #field_name " has invalid position")
@ -315,7 +285,6 @@ ASSERT_REG_POSITION(display_transfer_config, 0x00300);
ASSERT_REG_POSITION(command_processor_config, 0x00638);
#undef ASSERT_REG_POSITION
#endif // !defined(_MSC_VER)
// The total number of registers is chosen arbitrarily, but let's make sure it's not some odd value
// anyway.