from stdapi import *
-from glenum import GLenum
+from glapi import *
X = None # To be determined
-B = Bool
-I = Int
+B = GLboolean
+I = GLint
E = GLenum
-F = Float
-D = Double
+F = GLfloat
+D = GLdouble
P = OpaquePointer(Void)
S = CString
]
-class GlGetter(Visitor):
- '''Type visitor
- Determine which glGet*v function that matches the specified type.'''
+class GetInflector:
+ '''Objects that describes how to inflect.'''
- def __init__(self, prefix = 'glGet', long_suffix = True):
- self.prefix = prefix
- self.long_suffix = long_suffix
+ reduced_types = {
+ B: I,
+ E: I,
+ I: F,
+ }
+
+ def __init__(self, radical, suffixes):
+ self.radical = radical
+ self.suffixes = suffixes
+
+ def reduced_type(self, type):
+ if type in self.suffixes:
+ return type
+ if type in self.reduced_types:
+ return self.reduced_type(self.reduced_types[type])
+ raise NotImplementedError
+
+ def inflect(self, type):
+ return self.radical + self.suffix(type)
+
+ def suffix(self, type):
+ type = self.reduced_type(type)
+ assert type in self.suffixes
+ return self.suffixes[type]
+
+
+glGet = GetInflector('glGet', {
+ B: 'Booleanv',
+ I: 'Integerv',
+ F: 'Floatv',
+ D: 'Doublev',
+ S: 'String',
+ P: 'Pointerv',
+})
+
+glGetTexParameter = GetInflector('glGetTexParameter', {I: 'iv', F: 'fv'})
- if prefix == 'glGet':
- self.suffixes = {
- 'GLboolean': 'Booleanv',
- 'GLint': 'Intv',
- 'GLfloat': 'Floatv',
- 'GLdouble': 'Doublev',
- 'GLstring': 'String',
- }
- else:
- self.suffixes = {
- 'GLint': 'iv',
- 'GLfloat': 'fv',
- 'GLdouble': 'Doublev',
- 'GLstring': 'String',
- }
-
-
- def visit_const(self, const):
- return self.visit(const.type)
-
- def visit_alias(self, alias):
- if alias.expr == 'GLboolean':
- if self.long_suffix:
- return self.prefix + 'Booleanv', alias.expr
- else:
- return self.prefix + 'iv', 'GLint'
- elif alias.expr == 'GLdouble':
- if self.long_suffix:
- return self.prefix + 'Doublev', alias.expr
- else:
- return self.prefix + 'dv', alias.expr
- elif alias.expr == 'GLfloat':
- if self.long_suffix:
- return self.prefix + 'Floatv', alias.expr
- else:
- return self.prefix + 'fv', alias.expr
- elif alias.expr in ('GLint', 'GLuint', 'GLsizei'):
- if self.long_suffix:
- return self.prefix + 'Integerv', 'GLint'
- else:
- return self.prefix + 'iv', 'GLint'
- else:
- print alias.expr
- assert False
-
- def visit_enum(self, enum):
- return self.visit(glapi.GLint)
- def visit_bitmask(self, bitmask):
- return self.visit(glapi.GLint)
- def visit_opaque(self, pointer):
- return self.prefix + 'Pointerv', 'GLvoid *'
+class StateGetter(Visitor):
+ '''Type visitor that is able to extract the state via one of the glGet*
+ functions.
+
+ It will declare any temporary variable
+ '''
+
+ def __init__(self, inflector):
+ self.inflector = inflector
+
+ def temp_name(self, pname):
+ '''Return the name of a temporary variable to hold the state.'''
+
+ return pname[3:].lower()
+
+ def visit_const(self, const, pname):
+ return self.visit(const.type, pname)
+
+ def visit_scalar(self, type, pname):
+ temp_name = self.temp_name(pname)
+ elem_type = self.inflector.reduced_type(type)
+ inflection = self.inflector.inflect(type)
+ if inflection.endswith('v'):
+ print ' %s %s = 0;' % (elem_type, temp_name)
+ print ' %s(%s, &%s);' % (inflection, pname, temp_name)
+ else:
+ print ' %s %s = %s(%s);' % (elem_type, temp_name, inflection, pname)
+ return temp_name
+
+ def visit_string(self, string, pname):
+ temp_name = self.temp_name(pname)
+ inflection = self.inflector.inflect(string)
+ assert not inflection.endswith('v')
+ print ' %s %s = (%s)%s(%s);' % (string, temp_name, string, inflection, pname)
+ return temp_name
+
+ def visit_alias(self, alias, pname):
+ return self.visit_scalar(alias, pname)
+
+ def visit_enum(self, enum, pname):
+ return self.visit(GLint, pname)
+
+ def visit_bitmask(self, bitmask, pname):
+ return self.visit(GLint, pname)
+
+ def visit_array(self, array, pname):
+ temp_name = self.temp_name(pname)
+ if array.length == '1':
+ return self.visit(array.type)
+ elem_type = self.inflector.reduced_type(array.type)
+ inflection = self.inflector.inflect(array.type)
+ assert inflection.endswith('v')
+ print ' %s %s[%s];' % (elem_type, temp_name, array.length)
+ print ' memset(%s, 0, %s * sizeof *%s);' % (temp_name, array.length, temp_name)
+ print ' %s(%s, %s);' % (inflection, pname, temp_name)
+ return temp_name
+
+ def visit_opaque(self, pointer, pname):
+ temp_name = self.temp_name(pname)
+ inflection = self.inflector.inflect(pointer)
+ assert inflection.endswith('v')
+ print ' GLvoid *%s;' % temp_name
+ print ' %s(%s, &%s);' % (inflection, pname, temp_name)
+ return temp_name
class JsonWriter(Visitor):
class StateDumper:
+ '''Class to generate code to dump all GL state in JSON format via
+ stdout.'''
def __init__(self):
self.level = 0
print
def dump_parameters(self):
- print ' const GLubyte * sparams[1];'
- print ' GLboolean bparams[16];'
- print ' GLint iparams[16];'
- print ' GLfloat fparams[16];'
- print ' GLdouble dparams[16];'
- print ' GLvoid * pparams[16];'
- print
- print ' (void)dparams;'
- print
print ' json.beginMember("parameters");'
print ' json.beginObject();'
for function, type, count, name in parameters:
continue
if type is X:
continue
- elif type is B:
- buf = 'bparams'
- getter = 'glGetBooleanv'
- elif type is I:
- buf = 'iparams'
- getter = 'glGetIntegerv'
- elif type is E:
- buf = 'iparams'
- getter = 'glGetIntegerv'
- elif type is F:
- buf = 'fparams'
- getter = 'glGetFloatv'
- elif type is D:
- buf = 'dparams'
- getter = 'glGetDoublev'
- elif type is P:
- buf = 'pparams'
- getter = 'glGetPointerv'
- elif type is S:
- buf = 'sparams'
- getter = 'glGetString'
- else:
- raise NotImplementedError
- print ' memset(%s, 0, %u * sizeof *%s);' % (buf, count, buf)
- if getter.endswith('v'):
- print ' %s(%s, %s);' % (getter, name, buf)
- else:
- assert count == 1
- print ' %s[0] = %s(%s);' % (buf, getter, name)
- print ' if (glGetError() != GL_NO_ERROR) {'
- #print ' std::cerr << "warning: %s(%s) failed\\n";' % (getter, name)
- print ' } else {'
- print ' json.beginMember("%s");' % name
- if count == 1:
- JsonWriter().visit(type, '%s[0]' % buf)
- else:
- JsonWriter().visit(Array(type, str(count)), buf)
- print ' json.endMember();'
+ if count != 1:
+ type = Array(type, str(count))
+
+ print ' // %s' % name
+ print ' {'
+ value = StateGetter(glGet).visit(type, name)
+ print ' if (glGetError() != GL_NO_ERROR) {'
+ #print ' std::cerr << "warning: %s(%s) failed\\n";' % (glGet.radical, name)
+ print ' } else {'
+ print ' json.beginMember("%s");' % name
+ JsonWriter().visit(type, value)
+ print ' json.endMember();'
+ print ' }'
print ' }'
+ print
print ' json.endObject();'
print ' json.endMember(); // parameters'
print
projects / apitrace / commitdiff