1 # -*- coding: utf-8 -*-
3 #-------------------------------------------------------------------------
4 # drawElements Quality Program utilities
5 # --------------------------------------
7 # Copyright 2015 The Android Open Source Project
9 # Licensed under the Apache License, Version 2.0 (the "License");
10 # you may not use this file except in compliance with the License.
11 # You may obtain a copy of the License at
13 # http://www.apache.org/licenses/LICENSE-2.0
15 # Unless required by applicable law or agreed to in writing, software
16 # distributed under the License is distributed on an "AS IS" BASIS,
17 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 # See the License for the specific language governing permissions and
19 # limitations under the License.
21 #-------------------------------------------------------------------------
31 indices = xrange(sys.maxint)
36 # * int <-> float <-> bool (also float(float) etc.)
37 # * to bool: zero means false, others true
38 # * from bool: false==0, true==1
39 # * \todo [petri] float<->int rounding rules?
40 # - scalar type from vector
41 # * choose the first component
42 # - vectors & matrices
43 # * vector from scalar: broadcast to all components
44 # * matrix from scalar: broadcast scalar to diagonal, other components zero
45 # * vector from vector: copy existing components
46 # + illegal: vector from smaller vector
47 # * mat from mat: copy existing components, other components from identity matrix
48 # * from components: consumed by-component in column-major order, must have same
49 # number of components,
50 # + note: vec4(mat2) valid
51 # \todo [petri] Implement!
53 # * type conversions are always allowed: mat3(ivec3, bvec3, bool, int, float) is valid!
58 # * .xyzw, .rgba, .stpq
60 # * now allowed for scalar types
61 # * legal to chain: vec4.rgba.xyzw.stpq
62 # * illegal to select more than 4 components
63 # * array indexing with [] operator
67 # * note: mat4[0].x = 1.0; vs mat4[0][0] = 1.0; ??
68 # * out-of-bounds accesses
70 # \todo [petri] Accessors!
74 # - constructing larger vector from smaller: vec3(vec2) ?
75 # - base type and size conversion at same time: vec4(bool), int(vec3) allowed?
77 def combineVec(comps):
79 for ndx in range(len(comps[0])):
81 # print x[ndx].toFloat().getScalars() ,
82 scalars = reduce(operator.add, [x[ndx].toFloat().getScalars() for x in comps])
84 res.append(Vec.fromScalarList(scalars))
87 def combineIVec(comps):
89 for ndx in range(len(comps[0])):
90 res.append(Vec.fromScalarList(reduce(operator.add, [x[ndx].toInt().getScalars() for x in comps])))
93 def combineUVec(comps):
94 return [x.toUint() for x in combineIVec(comps)]
96 def combineBVec(comps):
98 for ndx in range(len(comps[0])):
99 res.append(Vec.fromScalarList(reduce(operator.add, [x[ndx].toBool().getScalars() for x in comps])))
102 def combineMat(numCols, numRows, comps):
104 for ndx in range(len(comps[0])):
105 scalars = reduce(operator.add, [x[ndx].toFloat().getScalars() for x in comps])
106 res.append(Mat(numCols, numRows, scalars))
109 def combineMat2(comps): return combineMat(2, 2, comps)
110 def combineMat2x3(comps): return combineMat(2, 3, comps)
111 def combineMat2x4(comps): return combineMat(2, 4, comps)
112 def combineMat3x2(comps): return combineMat(3, 2, comps)
113 def combineMat3(comps): return combineMat(3, 3, comps)
114 def combineMat3x4(comps): return combineMat(3, 4, comps)
115 def combineMat4x2(comps): return combineMat(4, 2, comps)
116 def combineMat4x3(comps): return combineMat(4, 3, comps)
117 def combineMat4(comps): return combineMat(4, 4, comps)
119 # 0 \+ [f*f for f in lst]
120 # r = 0 \+ [f in lst -> f*f]
125 s_simpleCaseTemplate = """
135 precision mediump float;
136 precision mediump int;
150 s_simpleIllegalCaseTemplate = """
158 precision mediump float;
159 precision mediump int;
173 class SimpleCase(ShaderCase):
174 def __init__(self, name, inputs, outputs, op):
177 self.outputs = outputs
183 "VALUES": genValues(self.inputs, self.outputs),
186 return fillTemplate(s_simpleCaseTemplate, params)
188 class ConversionCase(ShaderCase):
189 def __init__(self, inValues, convFunc):
190 outValues = convFunc(inValues)
191 inType = inValues[0].typeString()
192 outType = outValues[0].typeString()
193 self.name = "%s_to_%s" % (inType, outType)
194 self.op = "out0 = %s(in0);" % outType
195 self.inputs = [("%s in0" % inType, inValues)]
196 self.outputs = [("%s out0" % outType, outValues)]
201 "VALUES": genValues(self.inputs, self.outputs),
204 return fillTemplate(s_simpleCaseTemplate, params)
206 class IllegalConversionCase(ShaderCase):
207 def __init__(self, inValue, outValue):
208 inType = inValue.typeString()
209 outType = outValue.typeString()
210 self.name = "%s_to_%s" % (inType, outType)
211 self.op = "%s in0 = %s;\n%s out0 = %s(in0);" % (inType, str(inValue), outType, outType)
213 self.outType = outType
220 return fillTemplate(s_simpleIllegalCaseTemplate, params)
222 class CombineCase(ShaderCase):
223 def __init__(self, inComps, combFunc):
224 self.inComps = inComps
225 self.outValues = combFunc(inComps)
226 self.outType = self.outValues[0].typeString()
227 inTypes = [values[0].typeString() for values in inComps]
228 self.name = "%s_to_%s" % ("_".join(inTypes), self.outType)
229 self.inputs = [("%s in%s" % (comp[0].typeString(), ndx), comp) for (comp, ndx) in zip(inComps, indices)]
230 self.outputs = [("%s out0" % self.outType, self.outValues)]
231 self.op = "out0 = %s(%s);" % (self.outType, ", ".join(["in%d" % x for x in range(len(inComps))]))
236 "VALUES": genValues(self.inputs, self.outputs),
239 return fillTemplate(s_simpleCaseTemplate, params)
244 if isinstance(value, list):
245 return [toPos(x) for x in value]
247 return GenMath.abs(value)
249 inFloat = [Scalar(x) for x in [0.0, 1.0, 2.0, 3.5, -0.5, -8.25, -20.125, 36.8125]]
250 inInt = [Scalar(x) for x in [0, 1, 2, 5, 8, 11, -12, -66, -192, 255]]
251 inUint = [Uint(x) for x in [0, 2, 3, 8, 9, 12, 10, 45, 193, 255]]
252 inBool = [Scalar(x) for x in [True, False]]
254 inVec4 = [Vec4(0.0, 0.5, 0.75, 0.825), Vec4(1.0, 1.25, 1.125, 1.75),
255 Vec4(-0.5, -2.25, -4.875, 9.0), Vec4(-32.0, 64.0, -51.0, 24.0),
256 Vec4(-0.75, -1.0/31.0, 1.0/19.0, 1.0/4.0)]
257 inVec3 = toVec3(inVec4)
258 inVec2 = toVec2(inVec4)
259 inIVec4 = toIVec4(inVec4)
260 inIVec3 = toIVec3(inVec4)
261 inIVec2 = toIVec2(inVec4)
262 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)]
263 inBVec3 = toBVec3(inBVec4)
264 inBVec2 = toBVec2(inBVec4)
265 inUVec4 = toUVec4(toPos(inVec4))
266 inUVec3 = toUVec3(toPos(inVec3))
267 inUVec2 = toUVec2(toPos(inVec2))
269 # \todo [petri] Enable large values when epsilon adapts to the values.
270 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),
271 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),
272 #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)
274 inMat2 = [Mat2(1.0, 0.0, 0.0, 1.0),
275 Mat2(6.5, 12.5, -0.75, 9.975),
276 Mat2(6.5, 12.5, -0.75, 9.975),
277 Mat2(8.0, 16.0, -24.0, -16.0),
278 Mat2(1.0/8.0, 1.0/16.0, 1.0/32.0, 1.0/64.0),
279 Mat2(-18.725, -0.5, -0.0125, 19.975),
280 #Mat2(128.0, -4096.0, 192.0, -1536.0),
281 #Mat2(-1536.0, 8192.0, 6144.0, -6144.0)
284 inMat4x3 = toMat4x3(inMat4)
285 inMat4x2 = toMat4x2(inMat4)
286 inMat3x4 = toMat3x4(inMat4)
287 inMat3 = toMat3(inMat4)
288 inMat3x2 = toMat3x2(inMat4)
289 inMat2x4 = toMat2x4(inMat4)
290 inMat2x3 = toMat2x3(inMat4)
292 def genConversionCases(inValueList, convFuncList):
293 combinations = list(itertools.product(inValueList, convFuncList))
294 return [ConversionCase(inValues, convFunc) for (inValues, convFunc) in combinations]
296 def genIllegalConversionCases(inValueList, outValueList):
297 inValues = [x[0] for x in inValueList]
298 outValues = [x[0] for x in outValueList]
299 combinations = list(itertools.product(inValues, outValues))
300 return [IllegalConversionCase(inVal, outVal) for (inVal, outVal) in combinations]
302 def shuffleSubLists(outer):
303 return [shuffled(inner) for inner in outer]
305 # Generate all combinations of CombineCases.
306 # inTupleList a list of tuples of value-lists
307 # combFuncList a list of comb* functions to combine
308 def genComponentCases(inCompLists, combFuncList):
310 for comps in inCompLists:
311 maxLen = reduce(max, [len(values) for values in comps])
312 comps = [repeatToLength(values, maxLen) for values in comps]
313 comps = [shuffled(values) for values in comps]
314 for combFunc in combFuncList:
315 res += [CombineCase(comps, combFunc)]
318 allConversionCases = []
320 # Scalar-to-scalar conversions.
321 allConversionCases.append(CaseGroup("scalar_to_scalar", "Scalar to Scalar Conversions",
322 genConversionCases([inFloat, inInt, inUint, inBool], [toFloat, toInt, toBool]) +\
323 genConversionCases([toPos(inFloat), toPos(inInt), inUint, inBool], [toUint])))
325 # Scalar-to-vector conversions.
326 allConversionCases.append(CaseGroup("scalar_to_vector", "Scalar to Vector Conversions",
327 genConversionCases([inFloat, inInt, inUint, inBool], [toVec2, toVec3, toVec4, toIVec2, toIVec3, toIVec4, toBVec2, toBVec3, toBVec4]) +\
328 genConversionCases([toPos(inFloat), toPos(inInt), inUint, inBool], [toUVec2, toUVec3, toUVec4])))
330 # Vector-to-scalar conversions.
331 allConversionCases.append(CaseGroup("vector_to_scalar", "Vector to Scalar Conversions",
332 genConversionCases([inVec2, inVec3, inVec4, inIVec2, inIVec3, inIVec4, inUVec2, inUVec3, inUVec4, inBVec2, inBVec3, inBVec4], [toFloat, toInt, toBool]) +\
333 genConversionCases([toPos(inVec2), toPos(inVec3), toPos(inVec4), toPos(inIVec2), toPos(inIVec3), toPos(inIVec4), inUVec2, inUVec3, inUVec4, inBVec2, inBVec3, inBVec4], [toUint])))
335 # Illegal vector-to-vector conversions (to longer vec).
336 allConversionCases.append(CaseGroup("vector_illegal", "Illegal Vector Conversions",
337 genIllegalConversionCases([inVec2, inIVec2, inUVec2, inBVec2], [inVec3, inIVec3, inUVec3, inBVec3, inVec4, inIVec4, inUVec4, inBVec4]) +\
338 genIllegalConversionCases([inVec3, inIVec3, inUVec3, inBVec3], [inVec4, inIVec4, inUVec4, inBVec4])))
340 # Vector-to-vector conversions (type conversions, downcasts).
341 allConversionCases.append(CaseGroup("vector_to_vector", "Vector to Vector Conversions",
342 genConversionCases([inVec4, inIVec4, inUVec4, inBVec4], [toVec4, toVec3, toVec2, toIVec4, toIVec3, toIVec2, toBVec4, toBVec3, toBVec2]) +\
343 genConversionCases([toPos(inVec4), toPos(inIVec4), inUVec4, inBVec4], [toUVec4, toUVec3, toUVec2]) +\
344 genConversionCases([inVec3, inIVec3, inUVec3, inBVec3], [toVec3, toVec2, toIVec3, toIVec2, toBVec3, toBVec2]) +\
345 genConversionCases([toPos(inVec3), toPos(inIVec3), inUVec3, inBVec3], [toUVec3, toUVec2]) +\
346 genConversionCases([inVec2, inIVec2, inUVec2, inBVec2], [toVec2, toIVec2, toBVec2]) +\
347 genConversionCases([toPos(inVec2), toPos(inIVec2), inUVec2, inBVec2], [toUVec2])))
350 allConversionCases.append(CaseGroup("scalar_to_matrix", "Scalar to Matrix Conversions",
351 genConversionCases([inFloat, inInt, inUint, inBool], [toMat4, toMat4x3, toMat4x2, toMat3x4, toMat3, toMat3x2, toMat2x4, toMat2x3, toMat2])))
354 #allConversionCases += genConversionCases([inVec4, inIVec4, inBVec4], [toMat4])
355 #allConversionCases += genConversionCases([inVec3, inIVec3, inBVec3], [toMat3])
356 #allConversionCases += genConversionCases([inVec2, inIVec2, inBVec2], [toMat2])
359 allConversionCases.append(CaseGroup("matrix_to_matrix", "Matrix to Matrix Conversions",
360 genConversionCases([inMat4, inMat4x3, inMat4x2, inMat3x4, inMat3, inMat3x2, inMat2x4, inMat2x3, inMat2], [toMat4, toMat4x3, toMat4x2, toMat3x4, toMat3, toMat3x2, toMat2x4, toMat2x3, toMat2])))
362 # Vector-from-components, matrix-from-components.
363 in2Comp = [[inFloat, inFloat], [inInt, inInt], [inUint, inUint], [inBool, inBool], [inFloat, inInt], [inFloat, inBool], [inInt, inBool], [inInt, inUint], [inUint, inFloat]]
364 in3Comp = [[inFloat, inFloat, inFloat], [inInt, inInt, inInt], [inUint, inUint, inUint], [inBool, inBool, inBool], [inBool, inFloat, inInt], [inVec2, inBool], [inBVec2, inFloat], [inBVec2, inInt], [inBool, inIVec2], [inFloat, inUVec2]]
365 in4Comp = [[inVec2, inVec2], [inBVec2, inBVec2], [inFloat, inFloat, inFloat, inFloat], [inInt, inInt, inInt, inInt], [inUint, inUint, inUint, inUint], [inBool, inBool, inBool, inBool], [inBool, inFloat, inInt, inBool], [inVec2, inIVec2], [inVec2, inBVec2], [inBVec3, inFloat], [inVec3, inFloat], [inInt, inIVec2, inInt], [inBool, inFloat, inIVec2], [inFloat, inUVec3], [inInt, inUVec2, inBool]]
366 in6Comp = [[inVec3, inVec3], [inBVec3, inBVec3], [inFloat, inFloat, inFloat, inFloat, inFloat, inFloat], [inInt, inInt, inInt, inInt, inInt, inInt], [inBool, inBool, inBool, inBool, inBool, inBool], [inBool, inFloat, inInt, inBool, inFloat, inInt], [inVec3, inIVec3], [inVec2, inBVec4], [inBVec3, inFloat, inIVec2], [inVec3, inFloat, inBVec2]]
367 in8Comp = [[inVec3, inVec3, inVec2], [inIVec3, inIVec3, inIVec2], [inVec2, inIVec2, inFloat, inFloat, inInt, inBool], [inBool, inFloat, inInt, inVec2, inBool, inBVec2], [inBool, inBVec2, inInt, inVec4], [inFloat, inBVec4, inIVec2, inBool]]
368 in9Comp = [[inVec3, inVec3, inVec3], [inIVec3, inIVec3, inIVec3], [inVec2, inIVec2, inFloat, inFloat, inInt, inBool, inBool], [inBool, inFloat, inInt, inVec2, inBool, inBVec2, inFloat], [inBool, inBVec2, inInt, inVec4, inBool], [inFloat, inBVec4, inIVec2, inBool, inBool]]
369 in12Comp = [[inVec4, inVec4, inVec4], [inIVec4, inIVec4, inIVec4], [inVec2, inIVec2, inFloat, inFloat, inFloat, inInt, inInt, inBool, inBool, inBool], [inBool, inFloat, inInt, inVec3, inBool, inBVec3, inFloat, inBool], [inBool, inBVec4, inInt, inVec4, inBool, inFloat], [inFloat, inBVec4, inIVec4, inBool, inBool, inInt]]
370 in16Comp = [[inVec4, inVec4, inVec4, inVec4], [inIVec4, inIVec4, inIVec4, inIVec4], [inBVec4, inBVec4, inBVec4, inBVec4], [inFloat, inIVec3, inBVec3, inVec4, inIVec2, inFloat, inVec2]]
372 allConversionCases.append(CaseGroup("vector_combine", "Vector Combine Constructors",
373 genComponentCases(in4Comp, [combineVec, combineIVec, combineBVec]) +\
374 genComponentCases(toPos(in4Comp), [combineUVec]) +\
375 genComponentCases(in3Comp, [combineVec, combineIVec, combineBVec]) +\
376 genComponentCases(toPos(in3Comp), [combineUVec]) +\
377 genComponentCases(in2Comp, [combineVec, combineIVec, combineBVec]) +\
378 genComponentCases(toPos(in2Comp), [combineUVec])))
380 allConversionCases.append(CaseGroup("matrix_combine", "Matrix Combine Constructors",
381 genComponentCases(in4Comp, [combineMat2]) +\
382 genComponentCases(in6Comp, [combineMat2x3]) +\
383 genComponentCases(in8Comp, [combineMat2x4]) +\
384 genComponentCases(in6Comp, [combineMat3x2]) +\
385 genComponentCases(in9Comp, [combineMat3]) +\
386 genComponentCases(in12Comp, [combineMat3x4]) +\
387 genComponentCases(in8Comp, [combineMat4x2]) +\
388 genComponentCases(in12Comp, [combineMat4x3]) +\
389 genComponentCases(in16Comp, [combineMat4])
394 if __name__ == "__main__":
395 print "Generating shader case files."
396 writeAllCases("conversions.test", allConversionCases)