diff options
Diffstat (limited to 'drivers/gles3/shaders/stdlib_inc.glsl')
| -rw-r--r-- | drivers/gles3/shaders/stdlib_inc.glsl | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gles3/shaders/stdlib_inc.glsl b/drivers/gles3/shaders/stdlib_inc.glsl index 2eddf9d479..d5051760d7 100644 --- a/drivers/gles3/shaders/stdlib_inc.glsl +++ b/drivers/gles3/shaders/stdlib_inc.glsl @@ -1,5 +1,6 @@ -//TODO: only needed by GLES_OVER_GL +#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)) | @@ -37,14 +38,15 @@ vec2 unpackSnorm2x16(uint p) { vec2 v = vec2(float(p & uint(0xffff)), float(p >> uint(16))); return clamp((v - 32767.0) * vec2(0.00003051851), vec2(-1.0), vec2(1.0)); } +#endif uint packUnorm4x8(vec4 v) { uvec4 uv = uvec4(round(clamp(v, vec4(0.0), vec4(1.0)) * 255.0)); - return uv.x | uv.y << uint(8) | uv.z << uint(16) | uv.w << uint(24); + return uv.x | (uv.y << uint(8)) | (uv.z << uint(16)) | (uv.w << uint(24)); } vec4 unpackUnorm4x8(uint p) { - return vec4(float(p & uint(0xffff)), float((p >> uint(8)) & uint(0xffff)), float((p >> uint(16)) & uint(0xffff)), float(p >> uint(24))) * 0.00392156862; // 1.0 / 255.0 + return vec4(float(p & uint(0xff)), float((p >> uint(8)) & uint(0xff)), float((p >> uint(16)) & uint(0xff)), float(p >> uint(24))) * 0.00392156862; // 1.0 / 255.0 } uint packSnorm4x8(vec4 v) { @@ -53,6 +55,6 @@ uint packSnorm4x8(vec4 v) { } vec4 unpackSnorm4x8(uint p) { - vec4 v = vec4(float(p & uint(0xffff)), float((p >> uint(8)) & uint(0xffff)), float((p >> uint(16)) & uint(0xffff)), float(p >> uint(24))); + vec4 v = vec4(float(p & uint(0xff)), float((p >> uint(8)) & uint(0xff)), float((p >> uint(16)) & uint(0xff)), float(p >> uint(24))); return clamp((v - vec4(127.0)) * vec4(0.00787401574), vec4(-1.0), vec4(1.0)); } |