# -*- coding: utf-8 -*-
#-------------------------------------------------------------------------
# drawElements Quality Program utilities
# --------------------------------------
#
# Copyright 2015 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#-------------------------------------------------------------------------
import sys
import random
import operator
import itertools
from genutil import *
random.seed(1234567)
indices = xrange(sys.maxint)
# Swizzles:
# - vector components
# * int, float, bool vectors
# * .xyzw, .rgba, .stpq
# * illegal to mix
# * not allowed for scalar types
# * legal to chain: vec4.rgba.xyzw.stpq
# * illegal to select more than 4 components
#
# Subscripts:
# - array-like indexing with [] operator
# * vectors, matrices
# - read & write
# - vectors components
# * [] accessor
# - matrix columns
# * [] accessor
# * note: mat4[0].x = 1.0; vs mat4[0][0] = 1.0; ??
# * out-of-bounds accesses
#
# - vector swizzles
# * all vector types (bvec2..4, ivec2..4, vec2..4)
# * all precisions (lowp, mediump, highp)
# * all component names (xyzw, rgba, stpq)
# * broadcast each, reverse, N random
# - component-masked writes
# * all vector types (bvec2..4, ivec2..4, vec2..4)
# * all precisions (lowp, mediump, highp)
# * all component names (xyzw, rgba, stpq)
# * all possible subsets
# * all input types (attribute, varying, uniform, tmp)
# -> a few hundred cases
# - concatenated swizzles
#
VECTOR_TYPES = [ "vec2", "vec3", "vec4", "ivec2", "ivec3", "ivec4", "bvec2", "bvec3", "bvec4" ]
PRECISION_TYPES = [ "lowp", "mediump", "highp" ]
INPUT_TYPES = [ "uniform", "varying", "attribute", "tmp" ]
SWIZZLE_NAMES = [ "xyzw", "stpq", "rgba" ]
def getDataTypeScalarSize (dt):
return {
"float": 1,
"vec2": 2,
"vec3": 3,
"vec4": 4,
"int": 1,
"ivec2": 2,
"ivec3": 3,
"ivec4": 4,
"bool": 1,
"bvec2": 2,
"bvec3": 3,
"bvec4": 4,
"mat2": 4,
"mat3": 9,
"mat4": 16
}[dt]
if False:
class Combinations:
def __init__(self, *args):
self.lists = list(args)
self.numLists = len(args)
self.numCombinations = reduce(operator.mul, map(len, self.lists), 1)
print self.lists
print self.numCombinations
def iterate(self):
return [tuple(map(lambda x: x[0], self.lists))]
combinations = Combinations(INPUT_TYPES, VECTOR_TYPES, PRECISION_TYPES)
print combinations.iterate()
for (inputType, dataType, precision) in combinations.iterate():
scalarSize = getDataTypeScalarSize(dataType)
print inputType, precision, dataType
def getSwizzlesForWidth(width):
if (width == 2):
return [(0,), (0,0), (0,1), (1,0), (1,0,1), (0,1,0,0), (1,1,1,1)]
elif (width == 3):
return [(0,), (2,), (0,2), (2,2), (0,1,2), (2,1,0), (0,0,0), (2,2,2), (2,2,1), (1,0,1), (0,2,0), (0,1,1,0), (2,2,2,2)]
elif (width == 4):
return [(0,), (3,), (3,0), (3,2), (3,3,3), (1,1,3), (3,2,1), (0,1,2,3), (3,2,1,0), (0,0,0,0), (1,1,1,1), (3,3,3,3), (3,2,2,3), (3,3,3,1), (0,1,0,0), (2,2,3,2)]
else:
assert False
# Templates.
s_swizzleCaseTemplate = """
case ${{NAME}}
version 300
values
{
${{VALUES}}
}
both ""
#version 300 es
precision mediump float;
${DECLARATIONS}
void main()
{
${SETUP}
${{OP}}
${OUTPUT}
}
""
end
"""[1:]
s_simpleIllegalCaseTemplate = """
case ${{NAME}}
version 300
expect compile_fail
values {}
both ""
#version 300 es
precision mediump float;
precision mediump int;
${DECLARATIONS}
void main()
{
${SETUP}
${{OP}}
${OUTPUT}
}
""
end
"""[1:]
class SwizzleCase(ShaderCase):
def __init__(self, name, precision, dataType, swizzle, inputs, outputs):
self.name = name
self.precision = precision
self.dataType = dataType
self.swizzle = swizzle
self.inputs = inputs
self.outputs = outputs
self.op = "out0 = in0.%s;" % swizzle
def __str__(self):
params = {
"NAME": self.name,
"VALUES": genValues(self.inputs, self.outputs),
"OP": self.op
}
return fillTemplate(s_swizzleCaseTemplate, params)
# CASE DECLARATIONS
inFloat = [Scalar(x) for x in [0.0, 1.0, 2.0, 3.5, -0.5, -20.125, 36.8125]]
inInt = [Scalar(x) for x in [0, 1, 2, 5, 8, 11, -12, -66, -192, 255]]
inBool = [Scalar(x) for x in [True, False]]
inVec4 = [Vec4(0.0, 0.5, 0.75, 0.825), Vec4(1.0, 1.25, 1.125, 1.75),
Vec4(-0.5, -2.25, -4.875, 9.0), Vec4(-32.0, 64.0, -51.0, 24.0),
Vec4(-0.75, -1.0/31.0, 1.0/19.0, 1.0/4.0)]
inVec3 = toVec3(inVec4)
inVec2 = toVec2(inVec4)
inIVec4 = toIVec4(inVec4)
inIVec3 = toIVec3(inVec4)
inIVec2 = toIVec2(inVec4)
inBVec4 = [Vec4(True, False, False, True), Vec4(False, False, False, True), Vec4(False, True, False, False), Vec4(True, True, True, True), Vec4(False, False, False, False)]
inBVec3 = toBVec3(inBVec4)
inBVec2 = toBVec2(inBVec4)
# \todo [petri] Enable large values when epsilon adapts to the values.
inMat4 = [Mat4(1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0),
Mat4(6.5, 12.5, -0.75, 9.975, 32.0, 1.0/48.0, -8.425, -6.542, 1.0/8.0, 1.0/16.0, 1.0/32.0, 1.0/64.0, -6.725, -0.5, -0.0125, 9.975),
#Mat4(128.0, 256.0, -512.0, -1024.0, 2048.0, -4096.0, 8192.0, -8192.0, 192.0, -384.0, 768.0, -1536.0, 8192.0, -8192.0, 6144.0, -6144.0)
]
inMat3 = [Mat3(1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0),
Mat3(6.5, 12.5, -0.75, 32.0, 1.0/32.0, 1.0/64.0, 1.0/8.0, 1.0/16.0, 1.0/32.0),
#Mat3(-18.725, -0.5, -0.0125, 19.975, -0.25, -17.75, 9.25, 65.125, -21.425),
#Mat3(128.0, -4096.0, -8192.0, 192.0, 768.0, -1536.0, 8192.0, 6144.0, -6144.0)
]
inMat2 = [Mat2(1.0, 0.0, 0.0, 1.0),
Mat2(6.5, 12.5, -0.75, 9.975),
Mat2(6.5, 12.5, -0.75, 9.975),
Mat2(8.0, 16.0, -24.0, -16.0),
Mat2(1.0/8.0, 1.0/16.0, 1.0/32.0, 1.0/64.0),
Mat2(-18.725, -0.5, -0.0125, 19.975),
#Mat2(128.0, -4096.0, 192.0, -1536.0),
#Mat2(-1536.0, 8192.0, 6144.0, -6144.0)
]
INPUTS = {
"float": inFloat,
"vec2": inVec2,
"vec3": inVec3,
"vec4": inVec4,
"int": inInt,
"ivec2": inIVec2,
"ivec3": inIVec3,
"ivec4": inIVec4,
"bool": inBool,
"bvec2": inBVec2,
"bvec3": inBVec3,
"bvec4": inBVec4,
"mat2": inMat2,
"mat3": inMat3,
"mat4": inMat4
}
def genConversionCases(inValueList, convFuncList):
combinations = list(itertools.product(inValueList, convFuncList))
return [ConversionCase(inValues, convFunc) for (inValues, convFunc) in combinations]
allCases = []
# Vector swizzles.
vectorSwizzleCases = []
# \todo [petri] Uses fixed precision.
for dataType in VECTOR_TYPES:
scalarSize = getDataTypeScalarSize(dataType)
precision = "mediump"
for swizzleComponents in SWIZZLE_NAMES:
for swizzleIndices in getSwizzlesForWidth(scalarSize):
swizzle = "".join(map(lambda x: swizzleComponents[x], swizzleIndices))
#print "%s %s .%s" % (precision, dataType, swizzle)
caseName = "%s_%s_%s" % (precision, dataType, swizzle)
inputs = INPUTS[dataType]
outputs = map(lambda x: x.swizzle(swizzleIndices), inputs)
outType = outputs[0].typeString()
vectorSwizzleCases.append(SwizzleCase(caseName, precision, dataType, swizzle, [("%s in0" % dataType, inputs)], [("%s out0" % outType, outputs)]))
# ??
#for dataType in VECTOR_TYPES:
# scalarSize = getDataTypeScalarSize(dataType)
# for precision in PRECISION_TYPES:
# for swizzleIndices in getSwizzlesForWidth(scalarSize):
# swizzle = "".join(map(lambda x: "xyzw"[x], swizzleIndices))
# #print "%s %s .%s" % (precision, dataType, swizzle)
# caseName = "%s_%s_%s" % (precision, dataType, swizzle)
# inputs = INPUTS[dataType]
# outputs = map(lambda x: x.swizzle(swizzleIndices), inputs)
# vectorSwizzleCases.append(SwizzleCase(caseName, precision, dataType, swizzle, [("in0", inputs)], [("out0", outputs)]))
allCases.append(CaseGroup("vector_swizzles", "Vector Swizzles", vectorSwizzleCases))
# Swizzles:
# - vector components
# * int, float, bool vectors
# * .xyzw, .rgba, .stpq
# * illegal to mix
# * not allowed for scalar types
# * legal to chain: vec4.rgba.xyzw.stpq
# * illegal to select more than 4 components
# TODO: precisions!!
#allCases.append(CaseGroup("vector_swizzles", "Vector Swizzles",
# genSwizzleCase([inVec2, inVec3, inVec4],
# Main program.
if __name__ == "__main__":
print "Generating shader case files."
writeAllCases("swizzles.test", allCases)