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glsl: don't lower builtins to mediump that don't allow it

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Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5746>
This commit is contained in:
Marek Olšák
2020-06-30 20:24:44 -04:00
parent 69f7a3dac6
commit 3781697c23
4 changed files with 334 additions and 15 deletions
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283
src/compiler/glsl/tests/lower_precision_test.py
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@@ -1176,6 +1176,289 @@ TESTS = [
}
""",
r'expression ivec2 \* \(txs ivec2 \(var_ref tex'),
Test("floatBitsToInt",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform float val;
out int color;
void main()
{
color = floatBitsToInt(val + 1.0) + 1;
}
""",
r'expression int bitcast_f2i \(expression float'),
Test("floatBitsToUint",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform float val;
out uint color;
void main()
{
color = floatBitsToUint(val + 1.0) + 1u;
}
""",
r'expression uint bitcast_f2u \(expression float'),
Test("intBitsToFloat",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform int val;
out float color;
void main()
{
color = intBitsToFloat(val + 1) + 1.0;
}
""",
r'expression float bitcast_i2f \(expression int'),
Test("uintBitsToFloat",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform uint val;
out float color;
void main()
{
color = uintBitsToFloat(val + 1u) + 1.0;
}
""",
r'expression float bitcast_u2f \(expression uint'),
Test("bitfieldReverse",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform int val;
out int color;
void main()
{
color = bitfieldReverse(val + 1) + 1;
}
""",
r'expression int bitfield_reverse \(expression int'),
Test("frexp",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform float val;
out float color;
out int color2;
void main()
{
int y;
float x = frexp(val + 1.0, y);
color = x + 1.0;
color2 = y + 1;
}
""",
r'assign \(x\) \(var_ref x\) \(expression float f162f'),
Test("ldexp",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform float val;
uniform int exp;
out float color;
void main()
{
color = ldexp(val + 1.0, exp + 1) + 1.0;
}
""",
r'expression float ldexp \(expression float'),
Test("uaddCarry",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform uint x, y;
out uint color;
void main()
{
lowp uint carry;
color = uaddCarry(x * 2u, y * 2u, carry) * 2u;
color *= carry;
}
""",
r'expression uint \+ \(var_ref x\) \(var_ref y'),
Test("usubBorrow",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform uint x, y;
out uint color;
void main()
{
lowp uint borrow;
color = usubBorrow(x * 2u, y * 2u, borrow) * 2u;
color *= borrow;
}
""",
r'expression uint \+ \(var_ref x\) \(expression uint neg'),
Test("imulExtended",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform int x, y;
out int color;
void main()
{
int msb, lsb;
imulExtended(x + 2, y + 2, msb, lsb);
color = msb + lsb;
}
""",
r'expression int64_t \* \(expression int'),
Test("umulExtended",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform uint x, y;
out uint color;
void main()
{
uint msb, lsb;
umulExtended(x + 2u, y + 2u, msb, lsb);
color = msb + lsb;
}
""",
r'expression uint64_t \* \(expression uint'),
Test("unpackUnorm2x16",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform uint val;
out vec2 color;
void main()
{
color = unpackUnorm2x16(val + 1u) + vec2(1.0);
}
""",
r'expression vec2 unpackUnorm2x16 \(expression uint'),
Test("unpackSnorm2x16",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform uint val;
out vec2 color;
void main()
{
color = unpackSnorm2x16(val + 1u) + vec2(1.0);
}
""",
r'expression vec2 unpackSnorm2x16 \(expression uint'),
Test("packUnorm2x16",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform vec2 val;
out uint color;
void main()
{
color = packUnorm2x16(val + vec2(1.0)) + 1u;
}
""",
r'expression uint packUnorm2x16 \(expression vec2'),
Test("packSnorm2x16",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform vec2 val;
out uint color;
void main()
{
color = packSnorm2x16(val + vec2(1.0)) + 1u;
}
""",
r'expression uint packSnorm2x16 \(expression vec2'),
Test("packHalf2x16",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform vec2 val;
out uint color;
void main()
{
color = packHalf2x16(val + vec2(1.0)) + 1u;
}
""",
r'expression uint packHalf2x16 \(expression vec2'),
Test("packUnorm4x8",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform vec4 val;
out uint color;
void main()
{
color = packUnorm4x8(val + vec4(1.0)) + 1u;
}
""",
r'expression uint packUnorm4x8 \(expression vec4'),
Test("packSnorm4x8",
"""
#version 310 es
precision mediump float;
precision mediump int;
uniform vec4 val;
out uint color;
void main()
{
color = packSnorm4x8(val + vec4(1.0)) + 1u;
}
""",
r'expression uint packSnorm4x8 \(expression vec4'),
]