diff options
Diffstat (limited to 'drivers/gles3/shaders/stdlib_inc.glsl')
| -rw-r--r-- | drivers/gles3/shaders/stdlib_inc.glsl | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/drivers/gles3/shaders/stdlib_inc.glsl b/drivers/gles3/shaders/stdlib_inc.glsl index 029084c34c..f88c218506 100644 --- a/drivers/gles3/shaders/stdlib_inc.glsl +++ b/drivers/gles3/shaders/stdlib_inc.glsl @@ -9,19 +9,17 @@ // Floating point pack/unpack functions are part of the GLSL ES 300 specification used by web and mobile. uint float2half(uint f) { - uint e = f & uint(0x7f800000); - if (e <= uint(0x38000000)) { - return uint(0); - } else { - return ((f >> uint(16)) & uint(0x8000)) | - (((e - uint(0x38000000)) >> uint(13)) & uint(0x7c00)) | - ((f >> uint(13)) & uint(0x03ff)); - } + uint b = f + uint(0x00001000); + uint e = (b & uint(0x7F800000)) >> 23; + uint m = b & uint(0x007FFFFF); + return (b & uint(0x80000000)) >> uint(16) | uint(e > uint(112)) * ((((e - uint(112)) << uint(10)) & uint(0x7C00)) | m >> uint(13)) | (uint(e < uint(113)) & uint(e > uint(101))) * ((((uint(0x007FF000) + m) >> (uint(125) - e)) + uint(1)) >> uint(1)) | uint(e > uint(143)) * uint(0x7FFF); } uint half2float(uint h) { - uint h_e = h & uint(0x7c00); - return ((h & uint(0x8000)) << uint(16)) | uint((h_e >> uint(10)) != uint(0)) * (((h_e + uint(0x1c000)) << uint(13)) | ((h & uint(0x03ff)) << uint(13))); + uint e = (h & uint(0x7C00)) >> uint(10); + uint m = (h & uint(0x03FF)) << uint(13); + uint v = m >> uint(23); + return (h & uint(0x8000)) << uint(16) | uint(e != uint(0)) * ((e + uint(112)) << uint(23) | m) | (uint(e == uint(0)) & uint(m != uint(0))) * ((v - uint(37)) << uint(23) | ((m << (uint(150) - v)) & uint(0x007FE000))); } uint godot_packHalf2x16(vec2 v) { |