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author | bunnei <bunneidev@gmail.com> | 2018-08-09 06:37:32 +0200 |
---|---|---|
committer | GitHub <noreply@github.com> | 2018-08-09 06:37:32 +0200 |
commit | 5c908c03734cab6cd11f9dda0bfbdb80f5c0e1d7 (patch) | |
tree | 3511764cfcb7cfedac0f416da1c9249ea88ac8f1 | |
parent | Merge pull request #977 from bunnei/bgr565 (diff) | |
parent | common/color: Remove unnecessary const qualifiers on return types (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/common/color.h | 50 |
1 files changed, 31 insertions, 19 deletions
diff --git a/src/common/color.h b/src/common/color.h index 24a445dac..0379040be 100644 --- a/src/common/color.h +++ b/src/common/color.h @@ -4,6 +4,8 @@ #pragma once +#include <cstring> + #include "common/common_types.h" #include "common/swap.h" #include "common/vector_math.h" @@ -55,7 +57,7 @@ constexpr u8 Convert8To6(u8 value) { * @param bytes Pointer to encoded source color * @return Result color decoded as Math::Vec4<u8> */ -inline const Math::Vec4<u8> DecodeRGBA8(const u8* bytes) { +inline Math::Vec4<u8> DecodeRGBA8(const u8* bytes) { return {bytes[3], bytes[2], bytes[1], bytes[0]}; } @@ -64,7 +66,7 @@ inline const Math::Vec4<u8> DecodeRGBA8(const u8* bytes) { * @param bytes Pointer to encoded source color * @return Result color decoded as Math::Vec4<u8> */ -inline const Math::Vec4<u8> DecodeRGB8(const u8* bytes) { +inline Math::Vec4<u8> DecodeRGB8(const u8* bytes) { return {bytes[2], bytes[1], bytes[0], 255}; } @@ -73,7 +75,7 @@ inline const Math::Vec4<u8> DecodeRGB8(const u8* bytes) { * @param bytes Pointer to encoded source color * @return Result color decoded as Math::Vec4<u8> */ -inline const Math::Vec4<u8> DecodeRG8(const u8* bytes) { +inline Math::Vec4<u8> DecodeRG8(const u8* bytes) { return {bytes[1], bytes[0], 0, 255}; } @@ -82,8 +84,9 @@ inline const Math::Vec4<u8> DecodeRG8(const u8* bytes) { * @param bytes Pointer to encoded source color * @return Result color decoded as Math::Vec4<u8> */ -inline const Math::Vec4<u8> DecodeRGB565(const u8* bytes) { - const u16_le pixel = *reinterpret_cast<const u16_le*>(bytes); +inline Math::Vec4<u8> DecodeRGB565(const u8* bytes) { + u16_le pixel; + std::memcpy(&pixel, bytes, sizeof(pixel)); return {Convert5To8((pixel >> 11) & 0x1F), Convert6To8((pixel >> 5) & 0x3F), Convert5To8(pixel & 0x1F), 255}; } @@ -93,8 +96,9 @@ inline const Math::Vec4<u8> DecodeRGB565(const u8* bytes) { * @param bytes Pointer to encoded source color * @return Result color decoded as Math::Vec4<u8> */ -inline const Math::Vec4<u8> DecodeRGB5A1(const u8* bytes) { - const u16_le pixel = *reinterpret_cast<const u16_le*>(bytes); +inline Math::Vec4<u8> DecodeRGB5A1(const u8* bytes) { + u16_le pixel; + std::memcpy(&pixel, bytes, sizeof(pixel)); return {Convert5To8((pixel >> 11) & 0x1F), Convert5To8((pixel >> 6) & 0x1F), Convert5To8((pixel >> 1) & 0x1F), Convert1To8(pixel & 0x1)}; } @@ -104,8 +108,9 @@ inline const Math::Vec4<u8> DecodeRGB5A1(const u8* bytes) { * @param bytes Pointer to encoded source color * @return Result color decoded as Math::Vec4<u8> */ -inline const Math::Vec4<u8> DecodeRGBA4(const u8* bytes) { - const u16_le pixel = *reinterpret_cast<const u16_le*>(bytes); +inline Math::Vec4<u8> DecodeRGBA4(const u8* bytes) { + u16_le pixel; + std::memcpy(&pixel, bytes, sizeof(pixel)); return {Convert4To8((pixel >> 12) & 0xF), Convert4To8((pixel >> 8) & 0xF), Convert4To8((pixel >> 4) & 0xF), Convert4To8(pixel & 0xF)}; } @@ -116,7 +121,9 @@ inline const Math::Vec4<u8> DecodeRGBA4(const u8* bytes) { * @return Depth value as an u32 */ inline u32 DecodeD16(const u8* bytes) { - return *reinterpret_cast<const u16_le*>(bytes); + u16_le data; + std::memcpy(&data, bytes, sizeof(data)); + return data; } /** @@ -133,7 +140,7 @@ inline u32 DecodeD24(const u8* bytes) { * @param bytes Pointer to encoded source values * @return Resulting values stored as a Math::Vec2 */ -inline const Math::Vec2<u32> DecodeD24S8(const u8* bytes) { +inline Math::Vec2<u32> DecodeD24S8(const u8* bytes) { return {static_cast<u32>((bytes[2] << 16) | (bytes[1] << 8) | bytes[0]), bytes[3]}; } @@ -175,8 +182,10 @@ inline void EncodeRG8(const Math::Vec4<u8>& color, u8* bytes) { * @param bytes Destination pointer to store encoded color */ inline void EncodeRGB565(const Math::Vec4<u8>& color, u8* bytes) { - *reinterpret_cast<u16_le*>(bytes) = + const u16_le data = (Convert8To5(color.r()) << 11) | (Convert8To6(color.g()) << 5) | Convert8To5(color.b()); + + std::memcpy(bytes, &data, sizeof(data)); } /** @@ -185,9 +194,10 @@ inline void EncodeRGB565(const Math::Vec4<u8>& color, u8* bytes) { * @param bytes Destination pointer to store encoded color */ inline void EncodeRGB5A1(const Math::Vec4<u8>& color, u8* bytes) { - *reinterpret_cast<u16_le*>(bytes) = (Convert8To5(color.r()) << 11) | - (Convert8To5(color.g()) << 6) | - (Convert8To5(color.b()) << 1) | Convert8To1(color.a()); + const u16_le data = (Convert8To5(color.r()) << 11) | (Convert8To5(color.g()) << 6) | + (Convert8To5(color.b()) << 1) | Convert8To1(color.a()); + + std::memcpy(bytes, &data, sizeof(data)); } /** @@ -196,9 +206,10 @@ inline void EncodeRGB5A1(const Math::Vec4<u8>& color, u8* bytes) { * @param bytes Destination pointer to store encoded color */ inline void EncodeRGBA4(const Math::Vec4<u8>& color, u8* bytes) { - *reinterpret_cast<u16_le*>(bytes) = (Convert8To4(color.r()) << 12) | - (Convert8To4(color.g()) << 8) | - (Convert8To4(color.b()) << 4) | Convert8To4(color.a()); + const u16 data = (Convert8To4(color.r()) << 12) | (Convert8To4(color.g()) << 8) | + (Convert8To4(color.b()) << 4) | Convert8To4(color.a()); + + std::memcpy(bytes, &data, sizeof(data)); } /** @@ -207,7 +218,8 @@ inline void EncodeRGBA4(const Math::Vec4<u8>& color, u8* bytes) { * @param bytes Pointer where to store the encoded value */ inline void EncodeD16(u32 value, u8* bytes) { - *reinterpret_cast<u16_le*>(bytes) = value & 0xFFFF; + const u16_le data = static_cast<u16>(value); + std::memcpy(bytes, &data, sizeof(data)); } /** |