aboutsummaryrefslogtreecommitdiff
path: root/mesalib/src/mapi/glapi/gen/glX_proto_recv.py
blob: 887f63191dea4c1a46f76f97621e70cd9baba2bd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
#!/usr/bin/env python

# (C) Copyright IBM Corporation 2005
# All Rights Reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# on the rights to use, copy, modify, merge, publish, distribute, sub
# license, and/or sell copies of the Software, and to permit persons to whom
# the Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice (including the next
# paragraph) shall be included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
#
# Authors:
#    Ian Romanick <idr@us.ibm.com>

import gl_XML, glX_XML, glX_proto_common, license
import sys, getopt, string


class PrintGlxDispatch_h(gl_XML.gl_print_base):
	def __init__(self):
		gl_XML.gl_print_base.__init__(self)

		self.name = "glX_proto_recv.py (from Mesa)"
		self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2005", "IBM")

		self.header_tag = "_INDIRECT_DISPATCH_H_"
		return


	def printRealHeader(self):
		self.printVisibility( "HIDDEN", "hidden" )
		print 'struct __GLXclientStateRec;'
		print ''
		return


	def printBody(self, api):
		for func in api.functionIterateAll():
			if not func.ignore and not func.vectorequiv:
				if func.glx_rop:
					print 'extern HIDDEN void __glXDisp_%s(GLbyte * pc);' % (func.name)
					print 'extern HIDDEN void __glXDispSwap_%s(GLbyte * pc);' % (func.name)
				elif func.glx_sop or func.glx_vendorpriv:
					print 'extern HIDDEN int __glXDisp_%s(struct __GLXclientStateRec *, GLbyte *);' % (func.name)
					print 'extern HIDDEN int __glXDispSwap_%s(struct __GLXclientStateRec *, GLbyte *);' % (func.name)

					if func.glx_sop and func.glx_vendorpriv:
						n = func.glx_vendorpriv_names[0]
						print 'extern HIDDEN int __glXDisp_%s(struct __GLXclientStateRec *, GLbyte *);' % (n)
						print 'extern HIDDEN int __glXDispSwap_%s(struct __GLXclientStateRec *, GLbyte *);' % (n)

		return


class PrintGlxDispatchFunctions(glX_proto_common.glx_print_proto):
	def __init__(self, do_swap):
		gl_XML.gl_print_base.__init__(self)
		self.name = "glX_proto_recv.py (from Mesa)"
		self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2005", "IBM")

		self.real_types = [ '', '', 'uint16_t', '', 'uint32_t', '', '', '', 'uint64_t' ]
		self.do_swap = do_swap
		return


	def printRealHeader(self):
		print '#include <X11/Xmd.h>'
		print '#include <GL/gl.h>'
		print '#include <GL/glxproto.h>'

		print '#include <inttypes.h>'
		print '#include "indirect_size.h"'
		print '#include "indirect_size_get.h"'
		print '#include "indirect_dispatch.h"'
		print '#include "glxserver.h"'
		print '#include "glxbyteorder.h"'
		print '#include "indirect_util.h"'
		print '#include "singlesize.h"'
		print '#include "glapi.h"'
		print '#include "glapitable.h"'
		print '#include "glthread.h"'
		print '#include "glapidispatch.h"'
		print ''
		print '#define __GLX_PAD(x)  (((x) + 3) & ~3)'
		print ''
		print 'typedef struct {'
		print '    __GLX_PIXEL_3D_HDR;'
		print '} __GLXpixel3DHeader;'
		print ''
		print 'extern GLboolean __glXErrorOccured( void );'
		print 'extern void __glXClearErrorOccured( void );'
		print ''
		print 'static const unsigned dummy_answer[2] = {0, 0};'
		print ''
		return


	def printBody(self, api):
		if self.do_swap:
			self.emit_swap_wrappers(api)


		for func in api.functionIterateByOffset():
			if not func.ignore and not func.server_handcode and not func.vectorequiv and (func.glx_rop or func.glx_sop or func.glx_vendorpriv):
				self.printFunction(func, func.name)
				if func.glx_sop and func.glx_vendorpriv:
					self.printFunction(func, func.glx_vendorpriv_names[0])
					

		return


	def printFunction(self, f, name):
		if (f.glx_sop or f.glx_vendorpriv) and (len(f.get_images()) != 0):
			return

		if not self.do_swap:
			base = '__glXDisp'
		else:
			base = '__glXDispSwap'

		if f.glx_rop:
			print 'void %s_%s(GLbyte * pc)' % (base, name)
		else:
			print 'int %s_%s(__GLXclientState *cl, GLbyte *pc)' % (base, name)

		print '{'

		if f.glx_rop or f.vectorequiv:
			self.printRenderFunction(f)
		elif f.glx_sop or f.glx_vendorpriv:
			if len(f.get_images()) == 0: 
				self.printSingleFunction(f, name)
		else:
			print "/* Missing GLX protocol for %s. */" % (name)

		print '}'
		print ''
		return


	def swap_name(self, bytes):
		return 'bswap_%u_array' % (8 * bytes)


	def emit_swap_wrappers(self, api):
		self.type_map = {}
		already_done = [ ]

		for t in api.typeIterate():
			te = t.get_type_expression()
			t_size = te.get_element_size()

			if t_size > 1 and t.glx_name:
				
				t_name = "GL" + t.name
				self.type_map[ t_name ] = t.glx_name

				if t.glx_name not in already_done:
					real_name = self.real_types[t_size]

					print 'static %s' % (t_name)
					print 'bswap_%s( const void * src )' % (t.glx_name)
					print '{'
					print '    union { %s dst; %s ret; } x;' % (real_name, t_name)
					print '    x.dst = bswap_%u( *(%s *) src );' % (t_size * 8, real_name)
					print '    return x.ret;'
					print '}'
					print ''
					already_done.append( t.glx_name )

		for bits in [16, 32, 64]:
			print 'static void *'
			print 'bswap_%u_array( uint%u_t * src, unsigned count )' % (bits, bits)
			print '{'
			print '    unsigned  i;'
			print ''
			print '    for ( i = 0 ; i < count ; i++ ) {'
			print '        uint%u_t temp = bswap_%u( src[i] );' % (bits, bits)
			print '        src[i] = temp;'
			print '    }'
			print ''
			print '    return src;'
			print '}'
			print ''
			

	def fetch_param(self, param):
		t = param.type_string()
		o = param.offset
		element_size = param.size() / param.get_element_count()

		if self.do_swap and (element_size != 1):
			if param.is_array():
				real_name = self.real_types[ element_size ]

				swap_func = self.swap_name( element_size )
				return ' (%-8s)%s( (%s *) (pc + %2s), %s )' % (t, swap_func, real_name, o, param.count)
			else:
				t_name = param.get_base_type_string()
				return ' (%-8s)bswap_%-7s( pc + %2s )' % (t, self.type_map[ t_name ], o)
		else:
			if param.is_array():
				return ' (%-8s)(pc + %2u)' % (t, o)
			else:
				return '*(%-8s *)(pc + %2u)' % (t, o)
				
		return None


	def emit_function_call(self, f, retval_assign, indent):
		list = []

		for param in f.parameterIterator():
			if param.is_padding:
				continue

			if param.is_counter or param.is_image() or param.is_output or param.name in f.count_parameter_list or len(param.count_parameter_list):
				location = param.name
			else:
				location = self.fetch_param(param)

			list.append( '%s        %s' % (indent, location) )
			

		if len( list ):
			print '%s    %sCALL_%s( GET_DISPATCH(), (' % (indent, retval_assign, f.name)
			print string.join( list, ",\n" )
			print '%s    ) );' % (indent)
		else:
			print '%s    %sCALL_%s( GET_DISPATCH(), () );' % (indent, retval_assign, f.name)
		return


	def common_func_print_just_start(self, f, indent):
		align64 = 0
		need_blank = 0


		f.calculate_offsets()
		for param in f.parameterIterateGlxSend():
			# If any parameter has a 64-bit base type, then we
			# have to do alignment magic for the while thing.

			if param.is_64_bit():
				align64 = 1


			# FIXME img_null_flag is over-loaded.  In addition to
			# FIXME being used for images, it is used to signify
			# FIXME NULL data pointers for vertex buffer object
			# FIXME related functions.  Re-name it to null_data
			# FIXME or something similar.

			if param.img_null_flag:
				print '%s    const CARD32 ptr_is_null = *(CARD32 *)(pc + %s);' % (indent, param.offset - 4)
				cond = '(ptr_is_null != 0) ? NULL : '
			else:
				cond = ""


			type_string = param.type_string()

			if param.is_image():
				offset = f.offset_of( param.name )

				print '%s    %s const %s = (%s) (%s(pc + %s));' % (indent, type_string, param.name, type_string, cond, offset)
				
				if param.depth:
					print '%s    __GLXpixel3DHeader * const hdr = (__GLXpixel3DHeader *)(pc);' % (indent)
				else:
					print '%s    __GLXpixelHeader * const hdr = (__GLXpixelHeader *)(pc);' % (indent)

				need_blank = 1
			elif param.is_counter or param.name in f.count_parameter_list:
				location = self.fetch_param(param)
				print '%s    const %s %s = %s;' % (indent, type_string, param.name, location)
				need_blank = 1
			elif len(param.count_parameter_list):
				if param.size() == 1 and not self.do_swap:
					location = self.fetch_param(param)
					print '%s    %s %s = %s%s;' % (indent, type_string, param.name, cond, location)
				else:
					print '%s    %s %s;' % (indent, type_string, param.name)
				need_blank = 1



		if need_blank:
			print ''

		if align64:
			print '#ifdef __GLX_ALIGN64'

			if f.has_variable_size_request():
				self.emit_packet_size_calculation(f, 4)
				s = "cmdlen"
			else:
				s = str((f.command_fixed_length() + 3) & ~3)

			print '    if ((unsigned long)(pc) & 7) {'
			print '        (void) memmove(pc-4, pc, %s);' % (s)
			print '        pc -= 4;'
			print '    }'
			print '#endif'
			print ''


		need_blank = 0
		if self.do_swap:
			for param in f.parameterIterateGlxSend():
				if param.count_parameter_list:
					o = param.offset
					count = param.get_element_count()
					type_size = param.size() / count
					
					if param.counter:
						count_name = param.counter
					else:
						count_name = str(count)

					# This is basically an ugly special-
					# case for glCallLists.

					if type_size == 1:
						x = [] 
						x.append( [1, ['BYTE', 'UNSIGNED_BYTE', '2_BYTES', '3_BYTES', '4_BYTES']] )
						x.append( [2, ['SHORT', 'UNSIGNED_SHORT']] )
						x.append( [4, ['INT', 'UNSIGNED_INT', 'FLOAT']] )

						print '    switch(%s) {' % (param.count_parameter_list[0])
						for sub in x:
							for t_name in sub[1]:
								print '    case GL_%s:' % (t_name)

							if sub[0] == 1:
								print '        %s = (%s) (pc + %s); break;' % (param.name, param.type_string(), o)
							else:
								swap_func = self.swap_name(sub[0])
								print '        %s = (%s) %s( (%s *) (pc + %s), %s ); break;' % (param.name, param.type_string(), swap_func, self.real_types[sub[0]], o, count_name)
						print '    default:'
						print '        return;'
						print '    }'
					else:
						swap_func = self.swap_name(type_size)
						compsize = self.size_call(f, 1)
						print '    %s = (%s) %s( (%s *) (pc + %s), %s );' % (param.name, param.type_string(), swap_func, self.real_types[type_size], o, compsize)

					need_blank = 1

		else:
			for param in f.parameterIterateGlxSend():
				if param.count_parameter_list:
					print '%s    %s = (%s) (pc + %s);' % (indent, param.name, param.type_string(), param.offset)
					need_blank = 1


		if need_blank:
			print ''


		return


	def printSingleFunction(self, f, name):
		if name not in f.glx_vendorpriv_names:
			print '    xGLXSingleReq * const req = (xGLXSingleReq *) pc;'
		else:
			print '    xGLXVendorPrivateReq * const req = (xGLXVendorPrivateReq *) pc;'

		print '    int error;'

		if self.do_swap:
		    print '    struct glx_context * const cx = __glXForceCurrent(cl, bswap_CARD32( &req->contextTag ), &error);'
		else:
		    print '    struct glx_context * const cx = __glXForceCurrent(cl, req->contextTag, &error);'

		print ''
		if name not in f.glx_vendorpriv_names:
			print '    pc += __GLX_SINGLE_HDR_SIZE;'
		else:
			print '    pc += __GLX_VENDPRIV_HDR_SIZE;'

		print '    if ( cx != NULL ) {'
		self.common_func_print_just_start(f, "    ")
		

		if f.return_type != 'void':
			print '        %s retval;' % (f.return_type)
			retval_string = "retval"
			retval_assign = "retval = "
		else:
			retval_string = "0"
			retval_assign = ""


		type_size = 0
		answer_string = "dummy_answer"
		answer_count = "0"
		is_array_string = "GL_FALSE"

		for param in f.parameterIterateOutputs():
			answer_type = param.get_base_type_string()
			if answer_type == "GLvoid":
				answer_type = "GLubyte"


			c = param.get_element_count()
			type_size = (param.size() / c)
			if type_size == 1:
				size_scale = ""
			else:
				size_scale = " * %u" % (type_size)


			if param.count_parameter_list:
				print '        const GLuint compsize = %s;' % (self.size_call(f, 1))
				print '        %s answerBuffer[200];' %  (answer_type)
				print '        %s %s = __glXGetAnswerBuffer(cl, compsize%s, answerBuffer, sizeof(answerBuffer), %u);' % (param.type_string(), param.name, size_scale, type_size )
				answer_string = param.name
				answer_count = "compsize"

				print ''
				print '        if (%s == NULL) return BadAlloc;' % (param.name)
				print '        __glXClearErrorOccured();'
				print ''
			elif param.counter:
				print '        %s answerBuffer[200];' %  (answer_type)
				print '        %s %s = __glXGetAnswerBuffer(cl, %s%s, answerBuffer, sizeof(answerBuffer), %u);' % (param.type_string(), param.name, param.counter, size_scale, type_size)
				answer_string = param.name
				answer_count = param.counter
			elif c >= 1:
				print '        %s %s[%u];' % (answer_type, param.name, c)
				answer_string = param.name
				answer_count = "%u" % (c)

			if f.reply_always_array:
				is_array_string = "GL_TRUE"


		self.emit_function_call(f, retval_assign, "    ")


		if f.needs_reply():
			if self.do_swap:
				for param in f.parameterIterateOutputs():
					c = param.get_element_count()
					type_size = (param.size() / c)

					if type_size > 1:
						swap_name = self.swap_name( type_size )
						print '        (void) %s( (uint%u_t *) %s, %s );' % (swap_name, 8 * type_size, param.name, answer_count)


				reply_func = '__glXSendReplySwap'
			else:
				reply_func = '__glXSendReply'

			print '        %s(cl->client, %s, %s, %u, %s, %s);' % (reply_func, answer_string, answer_count, type_size, is_array_string, retval_string)
		#elif f.note_unflushed:
		#	print '        cx->hasUnflushedCommands = GL_TRUE;'

		print '        error = Success;'
		print '    }'
		print ''
		print '    return error;'
		return


	def printRenderFunction(self, f):
		# There are 4 distinct phases in a rendering dispatch function.
		# In the first phase we compute the sizes and offsets of each
		# element in the command.  In the second phase we (optionally)
		# re-align 64-bit data elements.  In the third phase we
		# (optionally) byte-swap array data.  Finally, in the fourth
		# phase we actually dispatch the function.

		self.common_func_print_just_start(f, "")

		images = f.get_images()
		if len(images):
			if self.do_swap:
				pre = "bswap_CARD32( & "
				post = " )"
			else:
				pre = ""
				post = ""

			img = images[0]

			# swapBytes and lsbFirst are single byte fields, so
			# the must NEVER be byte-swapped.

			if not (img.img_type == "GL_BITMAP" and img.img_format == "GL_COLOR_INDEX"):
				print '    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SWAP_BYTES,   hdr->swapBytes) );'

			print '    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_LSB_FIRST,    hdr->lsbFirst) );'

			print '    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_ROW_LENGTH,   (GLint) %shdr->rowLength%s) );' % (pre, post)
			if img.depth:
				print '    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_IMAGE_HEIGHT, (GLint) %shdr->imageHeight%s) );' % (pre, post)
			print '    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_ROWS,    (GLint) %shdr->skipRows%s) );' % (pre, post)
			if img.depth:
				print '    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_IMAGES,  (GLint) %shdr->skipImages%s) );' % (pre, post)
			print '    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_PIXELS,  (GLint) %shdr->skipPixels%s) );' % (pre, post)
			print '    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_ALIGNMENT,    (GLint) %shdr->alignment%s) );' % (pre, post)
			print ''


		self.emit_function_call(f, "", "")
		return


if __name__ == '__main__':
	file_name = "gl_API.xml"

	try:
		(args, trail) = getopt.getopt(sys.argv[1:], "f:m:s")
	except Exception,e:
		show_usage()

	mode = "dispatch_c"
	do_swap = 0
	for (arg,val) in args:
		if arg == "-f":
			file_name = val
		elif arg == "-m":
			mode = val
		elif arg == "-s":
			do_swap = 1

	if mode == "dispatch_c":
		printer = PrintGlxDispatchFunctions(do_swap)
	elif mode == "dispatch_h":
		printer = PrintGlxDispatch_h()
	else:
		show_usage()

	api = gl_XML.parse_GL_API( file_name, glX_proto_common.glx_proto_item_factory() )

	printer.Print( api )