diff options
Diffstat (limited to 'source')
| -rw-r--r-- | source/slang/glsl.meta.slang | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/source/slang/glsl.meta.slang b/source/slang/glsl.meta.slang index b4e5cf7ab..508156b8c 100644 --- a/source/slang/glsl.meta.slang +++ b/source/slang/glsl.meta.slang @@ -633,28 +633,34 @@ uint packSnorm1x8(float c) [ForceInline] float unpackUnorm1x16(uint p) { - return float(p) / 65535.0; + const uint wordMask = 0xffff; + return float(p & wordMask) / 65535.0; } [__readNone] [ForceInline] float unpackSnorm1x16(uint p) { - return clamp((float(p) - 32767.0) / 32767.0, -1.0, 1.0); + const uint wordMask = 0xffff; + return clamp((float(p & wordMask) - 32767.0) / 32767.0, -1.0, 1.0); } +__target_intrinsic(glsl) [__readNone] [ForceInline] float unpackUnorm1x8(uint p) { - return float(p) / 255.0; + const uint byteMask = 0xff; + return float(p & byteMask) / 255.0; } +__target_intrinsic(glsl) [__readNone] [ForceInline] float unpackSnorm1x8(uint p) { - return clamp((float(p) - 127.0) / 127.0, -1.0, 1.0); + const uint byteMask = 0xff; + return clamp((float(p & byteMask) - 127.0) / 127.0, -1.0, 1.0); } [__readNone] @@ -733,7 +739,11 @@ __target_intrinsic(glsl) [require(cpp_cuda_glsl_hlsl_spirv, shader5_sm_4_0)] public vec4 unpackUnorm4x8(highp uint p) { - return vec4(unpackUnorm1x8(p & uint(0xffff)), unpackUnorm1x8(p >> uint(8)), unpackUnorm1x8(p >> uint(16)), unpackUnorm1x8(p >> uint(24))); + return vec4( + unpackUnorm1x8(p), + unpackUnorm1x8(p >> 8), + unpackUnorm1x8(p >> 16), + unpackUnorm1x8(p >> 24)); } __target_intrinsic(glsl) @@ -742,7 +752,11 @@ __target_intrinsic(glsl) [require(cpp_cuda_glsl_hlsl_spirv, shader5_sm_4_0)] public vec4 unpackSnorm4x8(highp uint p) { - return vec4(unpackSnorm1x8(p & uint(0xffff)), unpackSnorm1x8(p >> uint(8)), unpackSnorm1x8(p >> uint(16)), unpackSnorm1x8(p >> uint(24))); + return vec4( + unpackSnorm1x8(p), + unpackSnorm1x8(p >> 8), + unpackSnorm1x8(p >> 16), + unpackSnorm1x8(p >> 24)); } __target_intrinsic(glsl) |