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Port yuzu-emu/yuzu#4528: "common: Make use of [[nodiscard]] where applicable" (#5535)

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Co-authored-by: LC <712067+lioncash@users.noreply.github.com>
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Tobias 2020-08-31 21:06:16 +02:00 • committed by GitHub
parent e48110bdf4
commit f6b543886c
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25 changed files with 284 additions and 265 deletions
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34
src/common/color.h
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@ -13,42 +13,42 @@
namespace Color {
/// Convert a 1-bit color component to 8 bit
constexpr u8 Convert1To8(u8 value) {
[[nodiscard]] constexpr u8 Convert1To8(u8 value) {
return value * 255;
}
/// Convert a 4-bit color component to 8 bit
constexpr u8 Convert4To8(u8 value) {
[[nodiscard]] constexpr u8 Convert4To8(u8 value) {
return (value << 4) | value;
}
/// Convert a 5-bit color component to 8 bit
constexpr u8 Convert5To8(u8 value) {
[[nodiscard]] constexpr u8 Convert5To8(u8 value) {
return (value << 3) | (value >> 2);
}
/// Convert a 6-bit color component to 8 bit
constexpr u8 Convert6To8(u8 value) {
[[nodiscard]] constexpr u8 Convert6To8(u8 value) {
return (value << 2) | (value >> 4);
}
/// Convert a 8-bit color component to 1 bit
constexpr u8 Convert8To1(u8 value) {
[[nodiscard]] constexpr u8 Convert8To1(u8 value) {
return value >> 7;
}
/// Convert a 8-bit color component to 4 bit
constexpr u8 Convert8To4(u8 value) {
[[nodiscard]] constexpr u8 Convert8To4(u8 value) {
return value >> 4;
}
/// Convert a 8-bit color component to 5 bit
constexpr u8 Convert8To5(u8 value) {
[[nodiscard]] constexpr u8 Convert8To5(u8 value) {
return value >> 3;
}
/// Convert a 8-bit color component to 6 bit
constexpr u8 Convert8To6(u8 value) {
[[nodiscard]] constexpr u8 Convert8To6(u8 value) {
return value >> 2;
}
@ -57,7 +57,7 @@ constexpr u8 Convert8To6(u8 value) {
* @param bytes Pointer to encoded source color
* @return Result color decoded as Common::Vec4<u8>
*/
inline Common::Vec4<u8> DecodeRGBA8(const u8* bytes) {
[[nodiscard]] inline Common::Vec4<u8> DecodeRGBA8(const u8* bytes) {
return {bytes[3], bytes[2], bytes[1], bytes[0]};
}
@ -66,7 +66,7 @@ inline Common::Vec4<u8> DecodeRGBA8(const u8* bytes) {
* @param bytes Pointer to encoded source color
* @return Result color decoded as Common::Vec4<u8>
*/
inline Common::Vec4<u8> DecodeRGB8(const u8* bytes) {
[[nodiscard]] inline Common::Vec4<u8> DecodeRGB8(const u8* bytes) {
return {bytes[2], bytes[1], bytes[0], 255};
}
@ -75,7 +75,7 @@ inline Common::Vec4<u8> DecodeRGB8(const u8* bytes) {
* @param bytes Pointer to encoded source color
* @return Result color decoded as Common::Vec4<u8>
*/
inline Common::Vec4<u8> DecodeRG8(const u8* bytes) {
[[nodiscard]] inline Common::Vec4<u8> DecodeRG8(const u8* bytes) {
return {bytes[1], bytes[0], 0, 255};
}
@ -84,7 +84,7 @@ inline Common::Vec4<u8> DecodeRG8(const u8* bytes) {
* @param bytes Pointer to encoded source color
* @return Result color decoded as Common::Vec4<u8>
*/
inline Common::Vec4<u8> DecodeRGB565(const u8* bytes) {
[[nodiscard]] inline Common::Vec4<u8> DecodeRGB565(const u8* bytes) {
u16_le pixel;
std::memcpy(&pixel, bytes, sizeof(pixel));
return {Convert5To8((pixel >> 11) & 0x1F), Convert6To8((pixel >> 5) & 0x3F),
@ -96,7 +96,7 @@ inline Common::Vec4<u8> DecodeRGB565(const u8* bytes) {
* @param bytes Pointer to encoded source color
* @return Result color decoded as Common::Vec4<u8>
*/
inline Common::Vec4<u8> DecodeRGB5A1(const u8* bytes) {
[[nodiscard]] inline Common::Vec4<u8> DecodeRGB5A1(const u8* bytes) {
u16_le pixel;
std::memcpy(&pixel, bytes, sizeof(pixel));
return {Convert5To8((pixel >> 11) & 0x1F), Convert5To8((pixel >> 6) & 0x1F),
@ -108,7 +108,7 @@ inline Common::Vec4<u8> DecodeRGB5A1(const u8* bytes) {
* @param bytes Pointer to encoded source color
* @return Result color decoded as Common::Vec4<u8>
*/
inline Common::Vec4<u8> DecodeRGBA4(const u8* bytes) {
[[nodiscard]] inline Common::Vec4<u8> DecodeRGBA4(const u8* bytes) {
u16_le pixel;
std::memcpy(&pixel, bytes, sizeof(pixel));
return {Convert4To8((pixel >> 12) & 0xF), Convert4To8((pixel >> 8) & 0xF),
@ -120,7 +120,7 @@ inline Common::Vec4<u8> DecodeRGBA4(const u8* bytes) {
* @param bytes Pointer to encoded source value
* @return Depth value as an u32
*/
inline u32 DecodeD16(const u8* bytes) {
[[nodiscard]] inline u32 DecodeD16(const u8* bytes) {
u16_le data;
std::memcpy(&data, bytes, sizeof(data));
return data;
@ -131,7 +131,7 @@ inline u32 DecodeD16(const u8* bytes) {
* @param bytes Pointer to encoded source value
* @return Depth value as an u32
*/
inline u32 DecodeD24(const u8* bytes) {
[[nodiscard]] inline u32 DecodeD24(const u8* bytes) {
return (bytes[2] << 16) | (bytes[1] << 8) | bytes[0];
}
@ -140,7 +140,7 @@ inline u32 DecodeD24(const u8* bytes) {
* @param bytes Pointer to encoded source values
* @return Resulting values stored as a Common::Vec2
*/
inline Common::Vec2<u32> DecodeD24S8(const u8* bytes) {
[[nodiscard]] inline Common::Vec2<u32> DecodeD24S8(const u8* bytes) {
return {static_cast<u32>((bytes[2] << 16) | (bytes[1] << 8) | bytes[0]), bytes[3]};
}