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1import sys
2import itertools
3import operator
4
5import genutil
6
7from genutil import Scalar, Vec2, Vec3, Vec4, Uint, UVec2, UVec3, UVec4, CaseGroup
8
9
10# Templates
11
12ARTIHMETIC_CASE_TEMPLATE = """
13case ${{NAME}}
14	version 310 es
15	require extension { "GL_EXT_shader_implicit_conversions" } in { vertex, fragment }
16	values
17	{
18		${{VALUES}}
19	}
20
21	both ""
22		#version 310 es
23		precision highp float;
24		${DECLARATIONS}
25
26		void main()
27		{
28			${SETUP}
29			out0 = ${{EXPR}};
30			${OUTPUT}
31		}
32	""
33end
34""".strip()
35
36FUNCTIONS_CASE_TEMPLATE = """
37case ${{NAME}}
38	version 310 es
39	require extension { "GL_EXT_shader_implicit_conversions" } in { vertex, fragment }
40	values
41	{
42		${{VALUES}}
43	}
44
45	both ""
46		#version 310 es
47		precision highp float;
48		${DECLARATIONS}
49
50		${{OUTTYPE}} func (${{OUTTYPE}} a)
51		{
52			return a * ${{OUTTYPE}}(2);
53		}
54
55		void main()
56		{
57			${SETUP}
58			out0 = func(in0);
59			${OUTPUT}
60		}
61	""
62end
63""".strip()
64
65ARRAY_CASE_TEMPLATE = """
66case ${{NAME}}
67	version 310 es
68	require extension { "GL_EXT_shader_implicit_conversions" } in { vertex, fragment }
69	values
70	{
71		${{VALUES}}
72	}
73
74	both ""
75		#version 310 es
76		precision highp float;
77		${DECLARATIONS}
78
79		void main()
80		{
81			${SETUP}
82			${{ARRAYTYPE}}[] x = ${{ARRAYTYPE}}[] (${{ARRAYVALUES}});
83			out0 = ${{EXPR}};
84			${OUTPUT}
85		}
86	""
87end
88""".strip()
89
90STRUCT_CASE_TEMPLATE = """
91case ${{NAME}}
92	version 310 es
93	require extension { "GL_EXT_shader_implicit_conversions" } in { vertex, fragment }
94	values
95	{
96		${{VALUES}}
97	}
98
99	both ""
100		#version 310 es
101		precision highp float;
102		${DECLARATIONS}
103
104		void main()
105		{
106			${SETUP}
107			struct {
108				${{OUTTYPE}} val;
109			} x;
110
111			x.val = ${{STRUCTVALUE}};
112
113			out0 = ${{EXPR}};
114			${OUTPUT}
115		}
116	""
117end
118""".strip()
119
120INVALID_CASE_TEMPLATE = """
121case ${{NAME}}
122	expect compile_fail
123	version 310 es
124	require extension { "GL_EXT_shader_implicit_conversions" } in { vertex, fragment }
125	values
126	{
127		${{VALUES}}
128	}
129
130	both ""
131		#version 310 es
132		precision highp float;
133		${DECLARATIONS}
134
135		void main()
136		{
137			${SETUP}
138			out0 = in0 + ${{OPERAND}};
139			${OUTPUT}
140		}
141	""
142end
143""".strip()
144
145INVALID_ARRAY_CASE_TEMPLATE = """
146case ${{NAME}}
147	expect compile_fail
148	version 310 es
149	require extension { "GL_EXT_shader_implicit_conversions" } in { vertex, fragment }
150	values {}
151
152	both ""
153		#version 310 es
154		precision highp float;
155		${DECLARATIONS}
156
157		void main()
158		{
159			${SETUP}
160			${{EXPR}}
161			${OUTPUT}
162		}
163	""
164end
165""".strip()
166
167INVALID_STRUCT_CASE_TEMPLATE = """
168case ${{NAME}}
169	expect compile_fail
170	version 310 es
171	require extension { "GL_EXT_shader_implicit_conversions" } in { vertex, fragment }
172	values {}
173
174	both ""
175		#version 310 es
176		precision highp float;
177		${DECLARATIONS}
178
179		void main()
180		{
181			${SETUP}
182			struct { ${{INTYPE}} value; } a;
183			struct { ${{OUTTYPE}} value; } b;
184			a = ${{INVALUE}};
185			b = a;
186			${OUTPUT}
187		}
188	""
189end
190""".strip()
191
192
193# Input values
194
195IN_ISCALAR = [  2,  1,  1,  3,  5 ]
196IN_USCALAR = [  1,  3,  4,  7, 11 ]
197
198IN_IVECTOR = [
199	( 1,  2,  3,  4),
200	( 2,  1,  2,  6),
201	( 3,  7,  2,  5),
202]
203
204IN_UVECTOR = [
205	( 2,  3,  5,  8),
206	( 4,  6,  2,  9),
207	( 1, 13,  7,  4),
208]
209
210IN_VALUES = {
211	"int":		[Scalar(x)								for x in IN_ISCALAR],
212	"uint":		[Scalar(x)								for x in IN_USCALAR],
213	"ivec2":	[Vec2(x[0], x[1])						for x in IN_IVECTOR],
214	"uvec2":	[Vec2(x[0], x[1])						for x in IN_UVECTOR],
215	"ivec3":	[Vec3(x[0], x[1], x[2])					for x in IN_IVECTOR],
216	"uvec3":	[Vec3(x[0], x[1], x[2])					for x in IN_UVECTOR],
217	"ivec4":	[Vec4(x[0], x[1], x[2], x[3])			for x in IN_IVECTOR],
218	"uvec4":	[Vec4(x[0], x[1], x[2], x[3])			for x in IN_UVECTOR],
219	"float":	[Scalar(x).toFloat()					for x in IN_ISCALAR],
220	"vec2":		[Vec2(x[0], x[1]).toFloat()				for x in IN_IVECTOR],
221	"vec3":		[Vec3(x[0], x[1], x[2]).toFloat()		for x in IN_IVECTOR],
222	"vec4":		[Vec4(x[0], x[1], x[2], x[3]).toFloat()	for x in IN_IVECTOR],
223}
224
225VALID_CONVERSIONS = {
226	"int":		["float", "uint"],
227	"uint":		["float"],
228	"ivec2":	["uvec2", "vec2"],
229	"uvec2":	["vec2"],
230	"ivec3":	["uvec3", "vec3"],
231	"uvec3":	["vec3"],
232	"ivec4":	["uvec4", "vec4"],
233	"uvec4":	["vec4"]
234}
235
236SCALAR_TO_VECTOR_CONVERSIONS = {
237	"int":		["vec2", "vec3", "vec4", "uvec2", "uvec3", "uvec4"],
238	"uint":		["vec2", "vec3", "vec4"]
239}
240
241VALID_ASSIGNMENTS = {
242	"int":		["ivec2", "ivec3", "ivec4"],
243	"uint":		["uvec2", "uvec3", "uvec4"],
244	"ivec2":	["int", "float"],
245	"ivec3":	["int", "float"],
246	"ivec4":	["int", "float"],
247	"uvec2":	["uint", "float"],
248	"uvec3":	["uint", "float"],
249	"uvec4":	["uint", "float"],
250	"float":	["vec2", "vec3", "vec4"],
251	"vec2":		["float"],
252	"vec3":		["float"],
253	"vec4":		["float"]
254}
255
256IN_TYPE_ORDER = [
257	"int", 	 "uint",
258	"ivec2", "uvec2", "ivec3",
259	"uvec3", "ivec4", "uvec4",
260
261	"float",
262	"vec2",  "vec3",  "vec4"
263]
264
265def isScalarTypeName (name):
266	return name in ["float", "int", "uint"]
267
268def isVec2TypeName (name):
269	return name in ["vec2", "ivec2", "uvec2"]
270
271def isVec3TypeName (name):
272	return name in ["vec3", "ivec3", "uvec3"]
273
274def isVec4TypeName (name):
275	return name in ["vec4", "ivec4", "uvec4"]
276
277# Utilities
278
279def scalarToVector(a, b):
280	if isinstance(a, Scalar) and isinstance(b, Vec2):
281		a = a.toVec2()
282	elif isinstance(a, Scalar) and isinstance(b, Vec3):
283		a = a.toVec3()
284	elif isinstance(a, Scalar) and isinstance(b, Vec4):
285		a = a.toVec4()
286	return a
287
288def isUintTypeName (type_name):
289	return type_name in ["uint", "uvec2", "uvec3", "uvec4"]
290
291def convLiteral (type, value):
292	if isUintTypeName(type):
293		return int(value)
294	else:
295		return value
296
297def valueToStr(value_type, value):
298	if isinstance(value, Scalar):
299		return str(value)
300	else:
301		assert isinstance(value, genutil.Vec)
302		out = value_type + "("
303		out += ", ".join([str(convLiteral(value_type, x)) for x in value.getScalars()])
304		out += ")"
305		return out
306
307
308def valuesToStr(prefix, value_type, values):
309	def gen_value_strs(value_list, value_type):
310		for value in value_list:
311			yield valueToStr(value_type, value)
312	return "%s = [ %s ];" % (prefix, " | ".join(gen_value_strs(values, value_type)))
313
314
315# Test cases
316
317class ArithmeticCase(genutil.ShaderCase):
318	def __init__(self, name, op, in_type, out_type, reverse=False):
319		self.op_func = {
320			"+":	operator.add,
321			"-":	operator.sub,
322			"*":	operator.mul,
323			"/":	operator.div,
324		}
325		self.name		= name
326		self.op			= op
327		self.in_type	= in_type
328		self.out_type	= out_type
329		self.reverse	= reverse
330
331	def __str__(self):
332		params = {
333			"NAME":		self.name,
334			"EXPR":		self.get_expr(),
335			"VALUES":	self.gen_values(),
336		}
337		return genutil.fillTemplate(ARTIHMETIC_CASE_TEMPLATE, params)
338
339	def apply(self, a, b):
340		assert(self.op in self.op_func)
341		a = scalarToVector(a, b)
342
343		if self.reverse:
344			b, a = a, b
345
346		return self.op_func[self.op](a, b)
347
348	def get_expr(self):
349		expr = ["in0", self.op, str(self.get_operand())]
350
351		if self.reverse:
352			expr.reverse()
353
354		return " ".join(expr)
355
356	def get_operand(self):
357		operands = {
358			"float":	Scalar(2.0),
359			"vec2":		Vec2(1.0, 2.0),
360			"vec3":		Vec3(1.0, 2.0, 3.0),
361			"vec4":		Vec4(1.0, 2.0, 3.0, 4.0),
362			"uint":		Uint(2),
363			"uvec2":	UVec2(1, 2),
364			"uvec3":	UVec3(1, 2, 3),
365			"uvec4":	UVec4(1, 2, 3, 4),
366		}
367		assert self.out_type in operands
368		return operands[self.out_type]
369
370	def gen_values(self):
371		in_values	= IN_VALUES[self.in_type]
372
373		y			= self.get_operand()
374		out_values	= [self.apply(x, y) for x in in_values]
375
376		out = []
377		out.append(valuesToStr("input %s in0" % (self.in_type), self.in_type, in_values))
378		out.append(valuesToStr("output %s out0" % (self.out_type), self.out_type, out_values))
379
380		return "\n".join(out)
381
382
383class ComparisonsCase(ArithmeticCase):
384	def __init__(self, name, op, in_type, out_type, reverse=False):
385		super(ComparisonsCase, self).__init__(name, op, in_type, out_type, reverse)
386
387		self.op_func = {
388			"==":	operator.eq,
389			"!=":	operator.ne,
390			"<":	operator.lt,
391			">":	operator.gt,
392			"<=":	operator.le,
393			">=":	operator.ge,
394		}
395
396	def apply(self, a, b):
397		assert(self.op in self.op_func)
398
399		if isinstance(a, Scalar) and isinstance(b, Scalar):
400			a, b = float(a), float(b)
401
402		if self.reverse:
403			b, a = a, b
404
405		return Scalar(self.op_func[self.op](a, b))
406
407	def gen_values(self):
408		in_values	= IN_VALUES[self.in_type]
409
410		y			= self.get_operand()
411		out_values	= [self.apply(x, y) for x in in_values]
412
413		out = []
414		out.append(valuesToStr("input %s in0" % (self.in_type), self.in_type, in_values))
415		out.append(valuesToStr("output bool out0", "bool", out_values))
416
417		return "\n".join(out)
418
419
420class ParenthesizedCase(genutil.ShaderCase):
421	def __init__(self, name, in_type, out_type, reverse=False, input_in_parens=False):
422		self.name				= name
423		self.in_type			= in_type
424		self.out_type			= out_type
425		self.reverse			= reverse
426		self.input_in_parens	= input_in_parens
427
428	def __str__(self):
429		params = {
430			"NAME":		self.name,
431			"EXPR":		self.get_expr(),
432			"VALUES":	self.gen_values(),
433		}
434		return genutil.fillTemplate(ARTIHMETIC_CASE_TEMPLATE, params)
435
436	def apply(self, a):
437		b, c	= self.get_operand(0), self.get_operand(1)
438		a		= scalarToVector(a, b)
439
440		if self.input_in_parens:
441			return b*(a+c)
442		else:
443			return a*(b+c)
444
445	def get_expr(self):
446		def make_paren_expr():
447			out = [
448				"in0" if self.input_in_parens else self.get_operand(0),
449				"+",
450				self.get_operand(1)
451			]
452			return "(%s)" % (" ".join([str(x) for x in out]))
453
454		expr = [
455			"in0" if not self.input_in_parens else self.get_operand(0),
456			"*",
457			make_paren_expr()
458		]
459
460		if self.reverse:
461			expr.reverse()
462
463		return " ".join([str(x) for x in expr])
464
465	def get_operand(self, ndx=0):
466		return IN_VALUES[self.out_type][ndx]
467
468	def gen_values(self):
469		in_values	= IN_VALUES[self.in_type]
470
471		out_values	= [self.apply(x) for x in in_values]
472
473		out = []
474		out.append(valuesToStr("input %s in0" % (self.in_type), self.in_type, in_values))
475		out.append(valuesToStr("output %s out0" % (self.out_type), self.out_type, out_values))
476
477		return "\n".join(out)
478
479
480class FunctionsCase(genutil.ShaderCase):
481	def __init__(self, name, in_type, out_type):
482		self.name		= name
483		self.in_type	= in_type
484		self.out_type	= out_type
485
486	def __str__(self):
487		params = {
488			"NAME":		self.name,
489			"OUTTYPE":	self.out_type,
490			"VALUES":	self.gen_values(),
491		}
492		return genutil.fillTemplate(FUNCTIONS_CASE_TEMPLATE, params)
493
494	def apply(self, a):
495		if isUintTypeName(self.out_type):
496			return a.toUint() * Uint(2)
497		else:
498			return a.toFloat() * Scalar(2.0)
499
500	def gen_values(self):
501		in_values	= IN_VALUES[self.in_type]
502		out_values	= [self.apply(x) for x in in_values]
503
504		out = []
505		out.append(valuesToStr("input %s in0" % (self.in_type), self.in_type, in_values))
506		out.append(valuesToStr("output %s out0" % (self.out_type), self.out_type, out_values))
507
508		return "\n".join(out)
509
510
511class ArrayCase(genutil.ShaderCase):
512	def __init__(self, name, in_type, out_type, reverse=False):
513		self.name		= name
514		self.in_type	= in_type
515		self.out_type	= out_type
516		self.reverse	= reverse
517
518	def __str__(self):
519		params = {
520			"NAME":			self.name,
521			"VALUES":		self.gen_values(),
522			"ARRAYTYPE":	self.out_type,
523			"ARRAYVALUES":	self.gen_array_values(),
524			"EXPR":			self.get_expr(),
525		}
526		return genutil.fillTemplate(ARRAY_CASE_TEMPLATE, params)
527
528	def apply(self, a):
529		b = IN_VALUES[self.out_type][1]
530		a = scalarToVector(a, b)
531
532		return a + b
533
534	def get_expr(self):
535		if not self.reverse:
536			return "in0 + x[1]"
537		else:
538			return "x[1] + in0"
539
540	def gen_values(self):
541		in_values	= IN_VALUES[self.in_type]
542		out_values	= [self.apply(x) for x in in_values]
543
544		out = []
545		out.append(valuesToStr("input %s in0" % (self.in_type), self.in_type, in_values))
546		out.append(valuesToStr("output %s out0" % (self.out_type), self.out_type, out_values))
547
548		return "\n".join(out)
549
550	def gen_array_values(self):
551		out = [valueToStr(self.out_type, x) for x in IN_VALUES[self.out_type]]
552		return ", ".join(out)
553
554
555class ArrayUnpackCase(genutil.ShaderCase):
556	def __init__(self, name, in_type, out_type):
557		self.name		= name
558		self.in_type	= in_type
559		self.out_type	= out_type
560
561	def __str__(self):
562		params = {
563			"NAME":			self.name,
564			"VALUES":		self.gen_values(),
565			"ARRAYTYPE":	"float",
566			"ARRAYVALUES":	self.gen_array_values(),
567			"EXPR":			self.get_expr(),
568		}
569		return genutil.fillTemplate(ARRAY_CASE_TEMPLATE, params)
570
571	def apply(self, a):
572		if isinstance(a, Scalar) and isVec2TypeName(self.out_type):
573			a = a.toVec2()
574		elif isinstance(a, Scalar) and isVec3TypeName(self.out_type):
575			a = a.toVec3()
576		elif isinstance(a, Scalar) and isVec4TypeName(self.out_type):
577			a = a.toVec4()
578
579		b = IN_VALUES["float"]
580
581		out = [Scalar(x)+y for x, y in zip(a.getScalars(), b)]
582
583		if self.out_type == "float":
584			return out[0].toFloat()
585		elif self.out_type == "uint":
586			return out[0].toUint()
587		elif self.out_type == "vec2":
588			return Vec2(out[0], out[1]).toFloat()
589		elif self.out_type == "uvec2":
590			return Vec2(out[0], out[1]).toUint()
591		elif self.out_type == "vec3":
592			return Vec3(out[0], out[1], out[2]).toFloat()
593		elif self.out_type == "uvec3":
594			return Vec3(out[0], out[1], out[2]).toUint()
595		elif self.out_type == "vec4":
596			return Vec4(out[0], out[1], out[2], out[3]).toFloat()
597		elif self.out_type == "uvec4":
598			return Vec4(out[0], out[1], out[2], out[3]).toUint()
599
600	def get_expr(self):
601		def num_scalars(typename):
602			return IN_VALUES[typename][0].getNumScalars()
603
604		def gen_sums():
605			in_scalars	= num_scalars(self.in_type)
606			out_scalars	= num_scalars(self.out_type)
607
608			for ndx in range(out_scalars):
609				if in_scalars > 1:
610					yield "in0[%i] + x[%i]" % (ndx, ndx)
611				else:
612					yield "in0 + x[%i]" % (ndx)
613
614		return "%s(%s)" % (self.out_type, ", ".join(gen_sums()))
615
616	def gen_values(self):
617		in_values	= IN_VALUES[self.in_type]
618		out_values	= [self.apply(x) for x in in_values]
619
620		out = []
621		out.append(valuesToStr("input %s in0" % (self.in_type), self.in_type, in_values))
622		out.append(valuesToStr("output %s out0" % (self.out_type), self.out_type, out_values))
623
624		return "\n".join(out)
625
626	def gen_array_values(self):
627		out = [valueToStr(self.out_type, x) for x in IN_VALUES["float"]]
628		return ", ".join(out)
629
630
631class StructCase(genutil.ShaderCase):
632	def __init__(self, name, in_type, out_type, reverse=False):
633		self.name		= name
634		self.in_type	= in_type
635		self.out_type	= out_type
636		self.reverse	= reverse
637
638	def __str__(self):
639		params = {
640			"NAME":			self.name,
641			"VALUES":		self.gen_values(),
642			"OUTTYPE":		self.out_type,
643			"STRUCTVALUE":	self.get_struct_value(),
644			"EXPR":			self.get_expr(),
645		}
646		return genutil.fillTemplate(STRUCT_CASE_TEMPLATE, params)
647
648	def apply(self, a):
649		if isinstance(a, Scalar) and isVec2TypeName(self.out_type):
650			a = a.toVec2()
651		elif isinstance(a, Scalar) and isVec3TypeName(self.out_type):
652			a = a.toVec3()
653		elif isinstance(a, Scalar) and isVec4TypeName(self.out_type):
654			a = a.toVec4()
655
656		b = IN_VALUES[self.out_type][0]
657
658		return a + b
659
660	def get_expr(self):
661		if not self.reverse:
662			return "in0 + x.val"
663		else:
664			return "x.val + in0"
665
666	def gen_values(self):
667		in_values	= IN_VALUES[self.in_type]
668		out_values	= [self.apply(x) for x in in_values]
669
670		out = []
671		out.append(valuesToStr("input %s in0" % (self.in_type), self.in_type, in_values))
672		out.append(valuesToStr("output %s out0" % (self.out_type), self.out_type, out_values))
673
674		return "\n".join(out)
675
676	def get_struct_value(self):
677		return valueToStr(self.out_type, IN_VALUES[self.out_type][0])
678
679
680class InvalidCase(genutil.ShaderCase):
681	def __init__(self, name, in_type, out_type):
682		self.name		= name
683		self.in_type	= in_type
684		self.out_type	= out_type
685
686	def __str__(self):
687		params = {
688			"NAME":		self.name,
689			"OPERAND":	str(self.get_operand()),
690			"VALUES":	self.gen_values(),
691		}
692		return genutil.fillTemplate(INVALID_CASE_TEMPLATE, params)
693
694	def apply(self, a, b):
695		return b
696
697	def get_operand(self):
698		return IN_VALUES[self.out_type][0]
699
700	def gen_values(self):
701		in_values	= IN_VALUES[self.in_type]
702
703		y			= self.get_operand()
704		out_values	= [self.apply(x, y) for x in in_values]
705
706		out = []
707		out.append(valuesToStr("input %s in0" % (self.in_type), self.in_type, in_values))
708		out.append(valuesToStr("output %s out0" % (self.out_type), self.out_type, out_values))
709
710		return "\n".join(out)
711
712
713class InvalidArrayCase(genutil.ShaderCase):
714	def __init__(self, name, in_type, out_type):
715		self.name		= name
716		self.in_type	= in_type
717		self.out_type	= out_type
718
719	def __str__(self):
720		params = {
721			"NAME":	self.name,
722			"EXPR":	self.gen_expr(),
723		}
724		return genutil.fillTemplate(INVALID_ARRAY_CASE_TEMPLATE, params)
725
726	def gen_expr(self):
727		in_values = [valueToStr(self.out_type, x) for x in IN_VALUES[self.in_type]]
728
729		out = "%s a[] = %s[] (%s);" % (self.out_type, self.in_type, ", ".join(in_values))
730
731		return out
732
733
734class InvalidStructCase(genutil.ShaderCase):
735	def __init__(self, name, in_type, out_type):
736		self.name		= name
737		self.in_type	= in_type
738		self.out_type	= out_type
739
740	def __str__(self):
741		params = {
742			"NAME":		self.name,
743			"INTYPE":	self.in_type,
744			"OUTTYPE":	self.out_type,
745			"INVALUE":	self.get_value(),
746		}
747		return genutil.fillTemplate(INVALID_STRUCT_CASE_TEMPLATE, params)
748
749	def get_value(self):
750		return valueToStr(self.in_type, IN_VALUES[self.in_type][0])
751
752
753# Case file generation
754
755def genConversionPairs(order=IN_TYPE_ORDER, scalar_to_vector=True, additional={}):
756	def gen_order(conversions):
757		key_set = set(conversions.iterkeys())
758		for typename in order:
759			if typename in key_set:
760				yield typename
761	conversions = {}
762
763	for in_type in VALID_CONVERSIONS:
764		conversions[in_type] = [] + VALID_CONVERSIONS[in_type]
765		if in_type in SCALAR_TO_VECTOR_CONVERSIONS and scalar_to_vector:
766			conversions[in_type] += SCALAR_TO_VECTOR_CONVERSIONS[in_type]
767
768	for key in additional.iterkeys():
769			value = conversions.get(key, [])
770			conversions[key] = value + additional[key]
771
772	for in_type in gen_order(conversions):
773		for out_type in conversions[in_type]:
774			yield (in_type, out_type)
775
776
777def genInvalidConversions():
778	types = IN_TYPE_ORDER
779	valid_pairs = set(genConversionPairs(additional=VALID_ASSIGNMENTS))
780
781	for pair in itertools.permutations(types, 2):
782		if pair not in valid_pairs:
783			yield pair
784
785
786def genArithmeticCases(reverse=False):
787	op_names = [
788		("add", "Addition",			"+"),
789		("sub", "Subtraction",		"-"),
790		("mul", "Multiplication",	"*"),
791		("div", "Division",			"/")
792	]
793
794	for name, desc, op in op_names:
795		casegroup = CaseGroup(name, desc, [])
796		for in_type, out_type in genConversionPairs():
797			if op == "-" and isUintTypeName(out_type):
798				continue # Can't handle at the moment
799			name = in_type + "_to_" + out_type
800			casegroup.children.append(ArithmeticCase(name, op, in_type, out_type, reverse))
801		yield casegroup
802
803
804def genComparisonCases(reverse=False):
805	op_names = [
806		("equal",				"Equal",					"=="),
807		("not_equal",			"Not equal",				"!="),
808		("less",				"Less than",				"<"),
809		("greater",				"Greater than",				">"),
810		("less_or_equal",		"Less than or equal",		"<="),
811		("greater_or_equal",	"Greater than or equal",	">="),
812	]
813
814	for name, desc, op in op_names:
815		casegroup	= CaseGroup(name, desc, [])
816		type_order	= IN_TYPE_ORDER if name in ["equal", "not_equal"] else ["int", "uint"]
817
818		for in_type, out_type in genConversionPairs(order=type_order, scalar_to_vector=False):
819			name = in_type + "_to_" + out_type
820			casegroup.children.append(ComparisonsCase(name, op, in_type, out_type, reverse))
821		yield casegroup
822
823
824def genParenthesizedCases():
825	for reverse in [True, False]:
826		if reverse:
827			name = "paren_expr_before_literal"
828			desc = "Parenthesized expression before literal"
829		else:
830			name = "literal_before_paren_expr"
831			desc = "Literal before parenthesized expression"
832		reversegroup = CaseGroup(name, desc, [])
833
834		for input_in_parens in [True, False]:
835			if input_in_parens:
836				name = "input_in_parens"
837				desc = "Input variable in parenthesized expression"
838			else:
839				name = "input_outside_parens"
840				desc = "Input variable outside parenthesized expression"
841			casegroup = CaseGroup(name, desc, [])
842
843			for in_type, out_type in genConversionPairs():
844				name = in_type + "_to_" + out_type
845				casegroup.children.append(
846					ParenthesizedCase(name, in_type, out_type, reverse, input_in_parens)
847				)
848			reversegroup.children.append(casegroup)
849		yield reversegroup
850
851
852def genArrayCases(reverse=False):
853	for in_type, out_type in genConversionPairs():
854		name = in_type + "_to_" + out_type
855		yield ArrayCase(name, in_type, out_type, reverse)
856
857
858def genArrayUnpackCases(reverse=False):
859	for in_type, out_type in genConversionPairs():
860		name = in_type + "_to_" + out_type
861		yield ArrayUnpackCase(name, in_type, out_type)
862
863
864def genFunctionsCases():
865	for in_type, out_type in genConversionPairs(scalar_to_vector=False):
866		name = in_type + "_to_" + out_type
867		yield FunctionsCase(name, in_type, out_type)
868
869
870def genStructCases(reverse=False):
871	for in_type, out_type in genConversionPairs():
872		name = in_type + "_to_" + out_type
873		yield StructCase(name, in_type, out_type, reverse)
874
875
876def genInvalidCases(reverse=False):
877	for in_type, out_type in genInvalidConversions():
878		name = in_type + "_to_" + out_type
879		yield InvalidCase(name, in_type, out_type)
880
881
882def genInvalidArrayCases():
883	for in_type, out_type in genConversionPairs(scalar_to_vector=False):
884		name = in_type + "_to_" + out_type
885		yield InvalidArrayCase(name, in_type, out_type)
886
887
888def genInvalidStructCases():
889	for in_type, out_type in genConversionPairs(scalar_to_vector=False):
890		name = in_type + "_to_" + out_type
891		yield InvalidStructCase(name, in_type, out_type)
892
893
894def genAllCases():
895	yield CaseGroup(
896		"arithmetic", "Arithmetic operations",
897		[
898			CaseGroup("input_before_literal", "Input before literal",
899					  genArithmeticCases(reverse=False)),
900			CaseGroup("literal_before_input", "Literal before input",
901					  genArithmeticCases(reverse=True)),
902		]
903	)
904
905	yield CaseGroup(
906		"comparisons", "Comparisons",
907		[
908			CaseGroup("input_before_literal", "Input before literal",
909					  genComparisonCases(reverse=False)),
910			CaseGroup("literal_before_input", "Literal before input",
911					  genComparisonCases(reverse=True)),
912		]
913	)
914
915	yield CaseGroup(
916		"array_subscripts", "Array subscripts",
917		[
918			CaseGroup("input_before_subscript", "Input before subscript",
919					  genArrayCases(reverse=False)),
920			CaseGroup("subscript_before_input", "Subscript before input",
921					  genArrayCases(reverse=True)),
922		#	CaseGroup("unpack", "Unpack array and repack as value",
923		#			  genArrayUnpackCases()),
924		]
925	)
926
927	yield CaseGroup("functions", "Function calls",
928					genFunctionsCases())
929
930	yield CaseGroup("struct_fields", "Struct field selectors",
931		[
932			CaseGroup("input_before_field", "Input before field",
933					  genStructCases(reverse=False)),
934			CaseGroup("field_before_input", "Field before input",
935					  genStructCases(reverse=True)),
936		]
937	)
938
939	yield CaseGroup("parenthesized_expressions", "Parenthesized expressions",
940					genParenthesizedCases())
941
942	yield CaseGroup(
943		"invalid", "Invalid conversions",
944		[
945			CaseGroup("variables", "Single variables",
946					  genInvalidCases()),
947			CaseGroup("arrays", "Arrays",
948					  genInvalidArrayCases()),
949			CaseGroup("structs", "Structs",
950					  genInvalidStructCases()),
951		]
952	)
953
954
955if __name__ == "__main__":
956	print "Generating shader case files."
957	genutil.writeAllCases("implicit_conversions.test", genAllCases())
958