diff options
| -rw-r--r-- | drivers/gles3/shaders/stdlib_inc.glsl | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/gles3/shaders/stdlib_inc.glsl b/drivers/gles3/shaders/stdlib_inc.glsl index 8d4a24cc1f..0b76c4334a 100644 --- a/drivers/gles3/shaders/stdlib_inc.glsl +++ b/drivers/gles3/shaders/stdlib_inc.glsl @@ -2,13 +2,23 @@ #ifdef USE_GLES_OVER_GL // Floating point pack/unpack functions are part of the GLSL ES 300 specification used by web and mobile. uint float2half(uint f) { - return ((f >> uint(16)) & uint(0x8000)) | - ((((f & uint(0x7f800000)) - uint(0x38000000)) >> uint(13)) & uint(0x7c00)) | - ((f >> uint(13)) & uint(0x03ff)); + 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 half2float(uint h) { - return ((h & uint(0x8000)) << uint(16)) | (((h & uint(0x7c00)) + uint(0x1c000)) << uint(13)) | ((h & uint(0x03ff)) << uint(13)); + uint h_e = h & uint(0x7c00); + if (h_e == uint(0x0000)) { + return uint(0); + } else { + return ((h & uint(0x8000)) << uint(16)) | ((h_e + uint(0x1c000)) << uint(13)) | ((h & uint(0x03ff)) << uint(13)); + } } uint packHalf2x16(vec2 v) { |