def getWritebackPointerOffset(return_type, params):
"""Returns the offset of the writeback pointer"""
arg_len = apiutil.PacketLength(params)
if return_type != 'void':
paramList = [('foo', 'void *', 0)]
arg_len += apiutil.PacketLength(paramList)
return arg_len + 8 # extended opcode plus packet length
def FindWritebackPointer( return_type, params ):
"""Emit a SET_WRITEBACK_PTR call."""
arg_len = apiutil.PacketLength( params )
if return_type != 'void':
paramList = [ ('foo', 'void *', 0) ]
arg_len += apiutil.PacketLength( paramList )
print('\tSET_WRITEBACK_PTR(%d);' % (arg_len + 8)) # extended opcode plus packet length
def FindReturnPointer( return_type, params ):
"""For GL functions that return values (either as the return value or
through a pointer parameter) emit a SET_RETURN_PTR call."""
arg_len = apiutil.PacketLength( params )
if (return_type != 'void'):
print('\tSET_RETURN_PTR(%d);' % (arg_len + 8)) # extended opcode plus packet length
else:
paramList = [ ('foo', 'void *', 0) ]
print('\tSET_RETURN_PTR(%d);' % (arg_len + 8 - apiutil.PacketLength(paramList)))
keys = apiutil.GetDispatchedFunctions(sys.argv[1] + "/APIspec.txt")
#
# Generate unpack functions for all the simple functions.
#
for func_name in keys:
if (not "pack" in apiutil.ChromiumProps(func_name)
or apiutil.FindSpecial("unpacker", func_name)):
continue
params = apiutil.Parameters(func_name)
return_type = apiutil.ReturnType(func_name)
packet_length = apiutil.PacketLength(params)
print("static void crUnpack%s(PCrUnpackerState pState)" % func_name)
print("{")
if ("get" in apiutil.Properties(func_name)):
print("\tCHECK_BUFFER_SIZE_STATIC(pState, %s);" %
getWritebackPointerOffset(return_type, params))
elif packet_length != 0:
print("\tCHECK_BUFFER_SIZE_STATIC(pState, %s);" % packet_length)
vector_func = apiutil.VectorFunction(func_name)
if (vector_func and len(apiutil.Parameters(vector_func)) == 1):
MakeVectorCall(return_type, func_name, params[0][1])
else:
MakeNormalCall(return_type, func_name, params)
if packet_length == 0:
print("\tINCR_DATA_PTR_NO_ARGS(pState);")
def PrintFunction(func_name, extSuffix, num_coords, argtype, do_swapped,
do_count, do_vector):
"""
Generate all the functions named crPackVertex[234][dfis][v]BBOX() and
crPackVertex[234][dfis][v]BBOX_COUNT().
We also handle glVertexAttrib*ARB.
Note: func_name should not have an ARB suffix.
"""
if do_count:
countSuffix = "_COUNT"
else:
countSuffix = ""
if do_swapped:
swapSuffix = "SWAP"
else:
swapSuffix = ""
if func_name[0:12] == "VertexAttrib":
isVertexAttrib = 1
else:
isVertexAttrib = 0
if argtype[0] == "N":
normalized = 1
else:
normalized = 0
if argtype == "b" or argtype == "Nb":
vector_type = "GLbyte"
elif argtype == "ub" or argtype == "Nub":
vector_type = "GLubyte"
elif argtype == "s" or argtype == "Ns":
vector_type = "GLshort"
elif argtype == "us" or argtype == "Nus":
vector_type = "GLushort"
elif argtype == "i" or argtype == "Ni":
vector_type = "GLint"
elif argtype == "ui" or argtype == "Nui":
vector_type = "GLuint"
elif argtype == "f":
vector_type = "GLfloat"
elif argtype == "d":
vector_type = "GLdouble"
else:
print "type is %s" % argtype
abort()
if do_vector:
if isVertexAttrib:
func_name = 'VertexAttrib%d%sv' % (num_coords, argtype)
else:
func_name = 'Vertex%d%sv' % (num_coords, argtype)
params = apiutil.Parameters(func_name + extSuffix)
print 'void PACK_APIENTRY crPack%sBBOX%s%s( %s )' % (
func_name + extSuffix, countSuffix, swapSuffix,
apiutil.MakeDeclarationString(params))
print '{'
if do_vector:
# vector version
packet_length = num_coords * apiutil.sizeof(vector_type)
if isVertexAttrib:
packet_length += 4 # for index
if packet_length % 4 != 0:
packet_length += 2
else:
# non-vector
packet_length = apiutil.PacketLength(params)
if isVertexAttrib:
packet_length += 0 # for index
if packet_length % 4 != 0:
packet_length += 2
print "\tGET_PACKER_CONTEXT(pc);"
print "\tunsigned char *data_ptr;"
if normalized:
if argtype == "Nb":
t = "B"
elif argtype == "Ni":
t = "I"
elif argtype == "Nui":
t = "UI"
elif argtype == "Nub":
t = "UB"
elif argtype == "Ns":
t = "S"
elif argtype == "Nus":
t = "US"
else:
abort()
if do_vector:
print "\tCREATE_%dD_VFLOATS_%s_NORMALIZED();" % (num_coords, t)
else:
print "\tCREATE_%dD_FLOATS_%s_NORMALIZED();" % (num_coords, t)
else:
if do_vector:
print "\tCREATE_%dD_VFLOATS();" % num_coords
else:
print "\tCREATE_%dD_FLOATS();" % num_coords
print "\tGET_BUFFERED%s_POINTER( pc, %d );" % (countSuffix, packet_length)
# Bounding box code
if isVertexAttrib:
print "\tif (pc->updateBBOX && index == 0)"
else:
print "\tif (pc->updateBBOX)"
print "\t{"
if num_coords < 4:
print "\t\tUPDATE_%dD_BBOX();" % num_coords
else:
print "\t\tUPDATE_3D_BBOX();"
print "\t}"
if isVertexAttrib:
print "\tif (index > 0) {"
t = argtype
print "\t\tpc->current.c.vertexAttrib.%s%d[index] = data_ptr + 4;" % (
t, num_coords)
print "\t\tpc->current.attribsUsedMask |= (1 << index);"
if do_count:
print "\t\tpc->current.vtx_count--;"
print "\t}"
fname = func_name + extSuffix
if do_vector:
# use non-vector opcode
opcode = apiutil.OpcodeName(func_name[:-1] + extSuffix)
else:
opcode = apiutil.OpcodeName(func_name + extSuffix)
counter = 0
if do_vector:
if isVertexAttrib:
if do_swapped:
print "\tWRITE_DATA( 0, GLuint, SWAP32(index) );"
else:
print "\tWRITE_DATA( 0, GLuint, index );"
counter += 4
argname = params[1][0] # skip 'index' parameter
else:
argname = params[0][0]
for index in range(num_coords):
print WriteData(counter, vector_type, "%s[%d]" % (argname, index),
do_swapped)
counter += apiutil.sizeof(vector_type)
if isVertexAttrib:
if do_vector == 2:
# this is a bit of a hack
print "\tWRITE_OPCODE( pc, %s );" % apiutil.OpcodeName(
func_name + "ARB")
else:
print "\tWRITE_OPCODE( pc, %s );" % apiutil.OpcodeName(
func_name[:-1] + "ARB")
else:
print "\tWRITE_OPCODE( pc, %s );" % apiutil.OpcodeName(
func_name[:-1])
else:
for index in range(0, len(params)):
(name, type, vecSize) = params[index]
print WriteData(counter, type, name, do_swapped)
counter += apiutil.sizeof(type)
if isVertexAttrib:
print "\tWRITE_OPCODE( pc, %s );" % apiutil.OpcodeName(func_name +
"ARB")
else:
print "\tWRITE_OPCODE( pc, %s );" % apiutil.OpcodeName(func_name)
print '}\n'
#
# Generate unpack functions for all the simple functions.
#
for func_name in keys:
if (not "pack" in apiutil.ChromiumProps(func_name) or
apiutil.FindSpecial( "unpacker", func_name )):
continue
params = apiutil.Parameters(func_name)
return_type = apiutil.ReturnType(func_name)
print("static void crUnpack%s(void)" % func_name)
print("{")
# Verify that the provided buffer length is what we expect.
packet_length = apiutil.PacketLength( params )
if packet_length > 0:
print("\tif(!DATA_POINTER_CHECK(%d))" % packet_length);
print("\t{");
print("\t\tcrError(\"crUnpack%s: parameters out of range\");" % func_name);
print("\t\treturn;");
print("\t}");
vector_func = apiutil.VectorFunction(func_name)
if (vector_func and len(apiutil.Parameters(vector_func)) == 1):
MakeVectorCall( return_type, func_name, params[0][1] )
else:
MakeNormalCall( return_type, func_name, params )
if packet_length == 0:
print("\tINCR_DATA_PTR_NO_ARGS( );")
else:
def PrintFunc(func_name, params, is_swapped, can_have_pointers):
"""Emit a packer function."""
if is_swapped:
print('void PACK_APIENTRY crPack%sSWAP(%s)' %
(func_name,
apiutil.MakeDeclarationStringWithContext(
'CR_PACKER_CONTEXT', params)))
else:
print('void PACK_APIENTRY crPack%s(%s)' %
(func_name,
apiutil.MakeDeclarationStringWithContext(
'CR_PACKER_CONTEXT', params)))
print('{')
print('\tCR_GET_PACKER_CONTEXT(pc);')
# Save original function name
orig_func_name = func_name
# Convert to a non-vector version of the function if possible
func_name = apiutil.NonVectorFunction(func_name)
if not func_name:
func_name = orig_func_name
# Check if there are any pointer parameters.
# That's usually a problem so we'll emit an error function.
nonVecParams = apiutil.Parameters(func_name)
bail_out = 0
for (name, type, vecSize) in nonVecParams:
if apiutil.IsPointer(type) and vecSize == 0 and not can_have_pointers:
bail_out = 1
if bail_out:
for (name, type, vecSize) in nonVecParams:
print('\t(void)%s;' % (name))
print('\tcrError ( "%s needs to be special cased %d %d!");' %
(func_name, vecSize, can_have_pointers))
print('\t(void) pc;')
print('}')
# XXX we should really abort here
return
if "extpack" in apiutil.ChromiumProps(func_name):
is_extended = 1
else:
is_extended = 0
print("\tunsigned char *data_ptr;")
print('\t(void) pc;')
#if func_name == "Enable" or func_name == "Disable":
# print "\tCRASSERT(!pc->buffer.geometry_only); /* sanity check */"
for index in range(0, len(params)):
(name, type, vecSize) = params[index]
if vecSize > 0 and func_name != orig_func_name:
print(" if (!%s) {" % name)
# Know the reason for this one, so avoid the spam.
if orig_func_name != "SecondaryColor3fvEXT":
print(" crDebug(\"App passed NULL as %s for %s\");" %
(name, orig_func_name))
print(" return;")
print(" }")
packet_length = apiutil.PacketLength(nonVecParams)
if packet_length == 0 and not is_extended:
print("\tCR_GET_BUFFERED_POINTER_NO_ARGS(pc);")
elif func_name[:9] == "Translate" or func_name[:5] == "Color":
# XXX WTF is the purpose of this?
if is_extended:
packet_length += 8
print("\tCR_GET_BUFFERED_POINTER_NO_BEGINEND_FLUSH(pc, %d, GL_TRUE);" %
packet_length)
else:
if is_extended:
packet_length += 8
print("\tCR_GET_BUFFERED_POINTER(pc, %d);" % packet_length)
UpdateCurrentPointer(func_name)
if is_extended:
counter = 8
print(WriteData(0, 'GLint', packet_length, is_swapped))
print(
WriteData(4, 'GLenum', apiutil.ExtendedOpcodeName(func_name),
is_swapped))
else:
counter = 0
# Now emit the WRITE_() macros for all parameters
for index in range(0, len(params)):
(name, type, vecSize) = params[index]
# if we're converting a vector-valued function to a non-vector func:
if vecSize > 0 and func_name != orig_func_name:
ptrType = apiutil.PointerType(type)
for i in range(0, vecSize):
print(
WriteData(counter + i * apiutil.sizeof(ptrType), ptrType,
"%s[%d]" % (name, i), is_swapped))
# XXX increment counter here?
else:
print(WriteData(counter, type, name, is_swapped))
if apiutil.IsPointer(type):
counter += apiutil.PointerSize()
else:
counter += apiutil.sizeof(type)
# finish up
if is_extended:
print("\tWRITE_OPCODE(pc, CR_EXTEND_OPCODE);")
else:
print("\tWRITE_OPCODE(pc, %s);" % apiutil.OpcodeName(func_name))
if "get" in apiutil.Properties(func_name):
print('\tCR_CMDBLOCK_CHECK_FLUSH(pc);')
print('\tCR_UNLOCK_PACKER_CONTEXT(pc);')
print('}\n')
'VertexAttrib4NusvARB': 8 + 4
}
apiutil.CopyrightC()
# Generate a table, indexed by packer opcode, which indicates the size
# (in bytes) of the packed commands. We only care about the per-vertex
# commands like glColor, glNormal, glMaterial, etc. For functions we
# don't care about, we set the size to -1. In the pincher we assert that
# the size isn't -1. If any of those assertions fail then an unexpected
# command is in the geometry buffer.
print """
static const int __cr_packet_length_table[] = {
"""
for func_name in keys:
if "pack" in apiutil.ChromiumProps(func_name):
if func_name in things_pinch_cares_about:
if func_name in special_sizes.keys():
size = special_sizes[func_name]
else:
params = apiutil.Parameters(func_name)
size = apiutil.PacketLength(params)
print "\t%2d, /* %s */" % (size, func_name)
else:
print '\t-1, /* %s */' % func_name
print '\t0 /* crap */'
print "};"
