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
("glGet", X, 1, "GL_SLICE_ACCUM_SUN"), # 0x85CC
("glGet", X, 1, "GL_QUAD_MESH_SUN"), # 0x8614
("glGet", X, 1, "GL_TRIANGLE_MESH_SUN"), # 0x8615
- ("glGet", X, 1, "GL_VERTEX_PROGRAM_ARB"), # 0x8620
+ ("glGet", B, 1, "GL_VERTEX_PROGRAM_ARB"), # 0x8620
("glGet", X, 1, "GL_VERTEX_STATE_PROGRAM_NV"), # 0x8621
("glGetVertexAttrib", B, 1, "GL_VERTEX_ATTRIB_ARRAY_ENABLED"), # 0x8622
("glGetVertexAttrib", I, 1, "GL_VERTEX_ATTRIB_ARRAY_SIZE"), # 0x8623
("glGet", X, 1, "GL_INVERSE_NV"), # 0x862B
("glGet", X, 1, "GL_TRANSPOSE_NV"), # 0x862C
("glGet", X, 1, "GL_INVERSE_TRANSPOSE_NV"), # 0x862D
- ("glGet", X, 1, "GL_MAX_PROGRAM_MATRIX_STACK_DEPTH_ARB"), # 0x862E
- ("glGet", X, 1, "GL_MAX_PROGRAM_MATRICES_ARB"), # 0x862F
+ ("glGet", I, 1, "GL_MAX_PROGRAM_MATRIX_STACK_DEPTH_ARB"), # 0x862E
+ ("glGet", I, 1, "GL_MAX_PROGRAM_MATRICES_ARB"), # 0x862F
("glGet", X, 1, "GL_MATRIX0_NV"), # 0x8630
("glGet", X, 1, "GL_MATRIX1_NV"), # 0x8631
("glGet", X, 1, "GL_MATRIX2_NV"), # 0x8632
("glGet", X, 1, "GL_MATRIX7_NV"), # 0x8637
("glGet", X, 1, "GL_CURRENT_MATRIX_STACK_DEPTH_ARB"), # 0x8640
("glGet", X, 1, "GL_CURRENT_MATRIX_ARB"), # 0x8641
- ("glGet", X, 1, "GL_VERTEX_PROGRAM_POINT_SIZE"), # 0x8642
- ("glGet", X, 1, "GL_VERTEX_PROGRAM_TWO_SIDE"), # 0x8643
+ ("glGet", B, 1, "GL_VERTEX_PROGRAM_POINT_SIZE"), # 0x8642
+ ("glGet", B, 1, "GL_VERTEX_PROGRAM_TWO_SIDE"), # 0x8643
("glGet", X, 1, "GL_PROGRAM_PARAMETER_NV"), # 0x8644
("glGetVertexAttrib", P, 1, "GL_VERTEX_ATTRIB_ARRAY_POINTER"), # 0x8645
("glGet", X, 1, "GL_PROGRAM_TARGET_NV"), # 0x8646
("glGet", E, 1, "GL_STENCIL_BACK_FAIL"), # 0x8801
("glGet", E, 1, "GL_STENCIL_BACK_PASS_DEPTH_FAIL"), # 0x8802
("glGet", E, 1, "GL_STENCIL_BACK_PASS_DEPTH_PASS"), # 0x8803
- ("glGet", X, 1, "GL_FRAGMENT_PROGRAM_ARB"), # 0x8804
+ ("glGet", B, 1, "GL_FRAGMENT_PROGRAM_ARB"), # 0x8804
("glGet", X, 1, "GL_PROGRAM_ALU_INSTRUCTIONS_ARB"), # 0x8805
("glGet", X, 1, "GL_PROGRAM_TEX_INSTRUCTIONS_ARB"), # 0x8806
("glGet", X, 1, "GL_PROGRAM_TEX_INDIRECTIONS_ARB"), # 0x8807
("glGet", I, 1, "GL_MAX_TEXTURE_COORDS"), # 0x8871
("glGet", I, 1, "GL_MAX_TEXTURE_IMAGE_UNITS"), # 0x8872
("glGet", I, 1, "GL_FRAGMENT_PROGRAM_BINDING_NV"), # 0x8873
- ("glGet", X, 1, "GL_PROGRAM_ERROR_STRING_ARB"), # 0x8874
+ ("glGet", S, 1, "GL_PROGRAM_ERROR_STRING_ARB"), # 0x8874
("glGet", X, 1, "GL_PROGRAM_FORMAT_ASCII_ARB"), # 0x8875
("glGet", X, 1, "GL_PROGRAM_FORMAT_ARB"), # 0x8876
("glGet", X, 1, "GL_WRITE_PIXEL_DATA_RANGE_NV"), # 0x8878
]
-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,
+ }
- 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 __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]
- 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, radical, suffixes):
+ self.inflector = GetInflector(radical, suffixes)
+
+ def __call__(self, *args):
+ pname = args[-1]
+
+ for function, type, count, name in parameters:
+ if type is X:
+ continue
+ if name == pname:
+ if count != 1:
+ type = Array(type, str(count))
+
+ return type, self.visit(type, args)
+
+ raise NotImplementedError
+
+ def temp_name(self, args):
+ '''Return the name of a temporary variable to hold the state.'''
+ pname = args[-1]
+
+ return pname[3:].lower()
+
+ def visit_const(self, const, args):
+ return self.visit(const.type, args)
+
+ def visit_scalar(self, type, args):
+ temp_name = self.temp_name(args)
+ 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, ', '.join(args), temp_name)
+ else:
+ print ' %s %s = %s(%s);' % (elem_type, temp_name, inflection, ', '.join(args))
+ return temp_name
+
+ def visit_string(self, string, args):
+ temp_name = self.temp_name(args)
+ inflection = self.inflector.inflect(string)
+ assert not inflection.endswith('v')
+ print ' %s %s = (%s)%s(%s);' % (string, temp_name, string, inflection, ', '.join(args))
+ return temp_name
+
+ def visit_alias(self, alias, args):
+ return self.visit_scalar(alias, args)
+
+ def visit_enum(self, enum, args):
+ return self.visit(GLint, args)
+
+ def visit_bitmask(self, bitmask, args):
+ return self.visit(GLint, args)
+
+ def visit_array(self, array, args):
+ temp_name = self.temp_name(args)
+ 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, ', '.join(args), temp_name)
+ return temp_name
+
+ def visit_opaque(self, pointer, args):
+ temp_name = self.temp_name(args)
+ inflection = self.inflector.inflect(pointer)
+ assert inflection.endswith('v')
+ print ' GLvoid *%s;' % temp_name
+ print ' %s(%s, &%s);' % (inflection, ', '.join(args), temp_name)
+ return temp_name
+
+
+glGet = StateGetter('glGet', {
+ B: 'Booleanv',
+ I: 'Integerv',
+ F: 'Floatv',
+ D: 'Doublev',
+ S: 'String',
+ P: 'Pointerv',
+})
+
+glGetVertexAttrib = StateGetter('glGetVertexAttrib', {I: 'iv', F: 'fv', D: 'dv', P: 'Pointerv'})
+glGetTexParameter = StateGetter('glGetTexParameter', {I: 'iv', F: 'fv'})
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 '#include "json.hpp"'
print '#include "glimports.hpp"'
print '#include "glproc.hpp"'
+ print '#include "glsize.hpp"'
print '#include "glretrace.hpp"'
print
- print 'static void'
- print 'writeEnum(JSONWriter &json, GLenum pname)'
+ print 'static const char *'
+ print '_enum_string(GLenum pname)'
print '{'
print ' switch(pname) {'
for name in GLenum.values:
print ' case %s:' % name
- print ' json.writeString("%s");' % name
- print ' break;'
+ print ' return "%s";' % name
print ' default:'
- print ' json.writeNumber(pname);'
+ print ' return NULL;'
print ' }'
print '}'
print
- # shaders
- print 'static void'
- print 'writeShader(JSONWriter &json, GLuint shader)'
+ print 'static const char *'
+ print 'enum_string(GLenum pname)'
print '{'
- print ' if (!shader) {'
- print ' json.writeNull();'
- print ' return;'
- print ' }'
- print
- print ' json.beginObject();'
- print ' GLint source_length = 0;'
- print ' glGetShaderiv(shader, GL_SHADER_SOURCE_LENGTH, &source_length);'
- print ' json.beginMember("source");'
- print ' if (source_length) {'
- print ' GLchar *source = new GLchar[source_length];'
- print ' GLsizei length = 0;'
- print ' source[0] = 0;'
- print ' glGetShaderSource(shader, source_length, &length, source);'
- print ' json.writeString(source);'
- print ' delete [] source;'
+ print ' const char *s = _enum_string(pname);'
+ print ' if (s) {'
+ print ' return s;'
print ' } else {'
- print ' json.writeNull();'
+ print ' static char buf[16];'
+ print ' snprintf(buf, sizeof buf, "0x%04x", pname);'
+ print ' return buf;'
print ' }'
- print ' json.endMember(); // source'
- print ' json.endObject();'
print '}'
print
- # programs
print 'static inline void'
- print 'writeProgram(JSONWriter &json, GLuint program)'
+ print 'writeEnum(JSONWriter &json, GLenum pname)'
print '{'
- print ' if (!program) {'
- print ' json.writeNull();'
- print ' return;'
- print ' }'
- print
- print ' json.beginObject();'
- print ' json.beginMember("attached_shaders");'
- print ' GLint attached_shaders = 0;'
- print ' glGetProgramiv(program, GL_ATTACHED_SHADERS, &attached_shaders);'
- print ' json.beginArray();'
- print ' if (attached_shaders) {'
- print ' GLuint *shaders = new GLuint[attached_shaders];'
- print ' GLsizei count = 0;'
- print ' glGetAttachedShaders(program, attached_shaders, &count, shaders);'
- print ' for (GLsizei i = 0; i < count; ++ i) {'
- print ' writeShader(json, shaders[i]);'
- print ' }'
- print ' delete [] shaders;'
+ print ' const char *s = _enum_string(pname);'
+ print ' if (s) {'
+ print ' json.writeString(s);'
+ print ' } else {'
+ print ' json.writeNumber(pname);'
print ' }'
- print ' json.endArray();'
- print ' json.endMember();'
- print ' json.endObject();'
print '}'
print
+ # shaders
+ print '''
+static void
+writeShader(JSONWriter &json, GLuint shader)
+{
+ if (!shader) {
+ return;
+ }
+
+ GLint shader_type = 0;
+ glGetShaderiv(shader, GL_SHADER_TYPE, &shader_type);
+ if (!shader_type) {
+ return;
+ }
+
+ GLint source_length = 0;
+ glGetShaderiv(shader, GL_SHADER_SOURCE_LENGTH, &source_length);
+ if (!source_length) {
+ return;
+ }
+
+ GLchar *source = new GLchar[source_length];
+ GLsizei length = 0;
+ source[0] = 0;
+ glGetShaderSource(shader, source_length, &length, source);
+
+ json.beginMember(enum_string(shader_type));
+ json.writeString(source);
+ json.endMember();
+
+ delete [] source;
+}
+
+static inline void
+writeCurrentProgram(JSONWriter &json)
+{
+ GLint program = 0;
+ glGetIntegerv(GL_CURRENT_PROGRAM, &program);
+ if (!program) {
+ return;
+ }
+
+ GLint attached_shaders = 0;
+ glGetProgramiv(program, GL_ATTACHED_SHADERS, &attached_shaders);
+ if (!attached_shaders) {
+ return;
+ }
+
+ GLuint *shaders = new GLuint[attached_shaders];
+ GLsizei count = 0;
+ glGetAttachedShaders(program, attached_shaders, &count, shaders);
+ for (GLsizei i = 0; i < count; ++ i) {
+ writeShader(json, shaders[i]);
+ }
+ delete [] shaders;
+}
+
+static inline void
+writeArbProgram(JSONWriter &json, GLenum target)
+{
+ if (!glIsEnabled(target)) {
+ return;
+ }
+
+ GLint program_length = 0;
+ glGetProgramivARB(target, GL_PROGRAM_LENGTH_ARB, &program_length);
+ if (!program_length) {
+ return;
+ }
+
+ GLchar *source = new GLchar[program_length + 1];
+ source[0] = 0;
+ glGetProgramStringARB(target, GL_PROGRAM_STRING_ARB, source);
+ source[program_length] = 0;
+
+ json.beginMember(enum_string(target));
+ json.writeString(source);
+ json.endMember();
+
+ delete [] source;
+}
+'''
+
# texture image
print '''
static inline void
// Hardcoded for now, but we could chose types more adequate to the
// texture internal format
- json.writeStringMember("__type__", "float");
+ json.writeStringMember("__type__", "uint8");
+ json.writeBoolMember("__normalized__", true);
json.writeNumberMember("__channels__", 4);
- float *pixels = new float[depth*width*height*4];
+ GLubyte *pixels = new GLubyte[depth*width*height*4];
- glGetTexImage(target, level, GL_RGBA, GL_FLOAT, pixels);
+ glGetTexImage(target, level, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
- json.writeStringMember("__encoding__", "base64");
json.beginMember("__data__");
json.writeBase64(pixels, depth * width * height * 4 * sizeof *pixels);
json.endMember(); // __data__
}
static inline void
-writeDrawBufferImage(JSONWriter &json)
+writeDrawBufferImage(JSONWriter &json, GLenum format)
{
GLint width = glretrace::window_width;
GLint height = glretrace::window_height;
+ GLint channels = __gl_format_channels(format);
+
if (!width || !height) {
json.writeNull();
} else {
// Hardcoded for now, but we could chose types more adequate to the
// texture internal format
- json.writeStringMember("__type__", "float");
- json.writeNumberMember("__channels__", 4);
-
- float *pixels = new float[width*height*4];
+ json.writeStringMember("__type__", "uint8");
+ json.writeBoolMember("__normalized__", true);
+ json.writeNumberMember("__channels__", channels);
+
+ GLubyte *pixels = new GLubyte[width*height*channels];
GLint drawbuffer = glretrace::double_buffer ? GL_BACK : GL_FRONT;
GLint readbuffer = glretrace::double_buffer ? GL_BACK : GL_FRONT;
glGetIntegerv(GL_DRAW_BUFFER, &drawbuffer);
glGetIntegerv(GL_READ_BUFFER, &readbuffer);
glReadBuffer(drawbuffer);
- glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+
+ glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
+ glPixelStorei(GL_PACK_ALIGNMENT, 1);
+
+ glReadPixels(0, 0, width, height, format, GL_UNSIGNED_BYTE, pixels);
+
+ glPopClientAttrib();
glReadBuffer(readbuffer);
- json.writeStringMember("__encoding__", "base64");
json.beginMember("__data__");
- json.writeBase64(pixels, width * height * 4 * sizeof *pixels);
+ json.writeBase64(pixels, width * height * channels * sizeof *pixels);
json.endMember(); // __data__
delete [] pixels;
continue
print ' glGetTexParameterfv(target, %s, ¶m);' % name
print ' json.beginMember("%s");' % name
- print ' json.writeNumber(param);'
+ JsonWriter().visit(type, 'param')
print ' json.endMember();'
print
print
continue
print ' glGetTexLevelParameterfv(target, level, %s, ¶m);' % name
print ' json.beginMember("%s");' % name
- print ' json.writeNumber(param);'
+ JsonWriter().visit(type, 'param')
print ' json.endMember();'
print
print ' json.beginMember("image");'
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:
- if function != 'glGet':
- 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();'
- print ' }'
+
+ self.dump_atoms(glGet)
+
+ self.dump_vertex_attribs()
+
print ' json.endObject();'
print ' json.endMember(); // parameters'
print
+ def dump_vertex_attribs(self):
+ print ' json.beginMember("GL_VERTEX_ATTRIB");'
+ print ' json.beginArray();'
+ print ' GLint max_vertex_attribs = 0;'
+ print ' __glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &max_vertex_attribs);'
+ print ' for (GLint index = 0; index < max_vertex_attribs; ++index) {'
+ print ' json.beginObject();'
+ self.dump_atoms(glGetVertexAttrib, 'index')
+ print ' json.endObject();'
+ print ' }'
+ print
+ print ' json.endArray();'
+ print ' json.endMember(); // GL_VERTEX_ATTRIB'
+ print
+
def dump_current_program(self):
- print ' GLint current_program = 0;'
- print ' glGetIntegerv(GL_CURRENT_PROGRAM, ¤t_program);'
- print ' json.beginMember("current_program");'
- print ' writeProgram(json, current_program);'
- print ' json.endMember();'
+ print ' json.beginMember("shaders");'
+ print ' json.beginObject();'
+ print ' writeCurrentProgram(json);'
+ print ' writeArbProgram(json, GL_FRAGMENT_PROGRAM_ARB);'
+ print ' writeArbProgram(json, GL_VERTEX_PROGRAM_ARB);'
+ print ' json.endObject();'
+ print ' json.endMember(); //shaders'
print
def dump_textures(self):
def dump_framebuffer(self):
print ' json.beginMember("framebuffer");'
print ' json.beginObject();'
- print ' json.beginMember("GL_DRAW_BUFFER");'
- # TODO: Handle FBOs
- print ' writeDrawBufferImage(json);'
+ # TODO: Handle real FBOs
+ print
+ print ' json.beginMember("GL_RGBA");'
+ print ' writeDrawBufferImage(json, GL_RGBA);'
print ' json.endMember();'
+ print
+ print ' GLint depth_bits = 0;'
+ print ' glGetIntegerv(GL_DEPTH_BITS, &depth_bits);'
+ print ' if (depth_bits) {'
+ print ' json.beginMember("GL_DEPTH_COMPONENT");'
+ print ' writeDrawBufferImage(json, GL_DEPTH_COMPONENT);'
+ print ' json.endMember();'
+ print ' }'
+ print
+ print ' GLint stencil_bits = 0;'
+ print ' glGetIntegerv(GL_STENCIL_BITS, &stencil_bits);'
+ print ' if (stencil_bits) {'
+ print ' json.beginMember("GL_STENCIL_INDEX");'
+ print ' writeDrawBufferImage(json, GL_STENCIL_INDEX);'
+ print ' json.endMember();'
+ print ' }'
+ print
print ' json.endObject();'
print ' json.endMember(); // framebuffer'
pass
+ def dump_atoms(self, getter, *args):
+ for function, type, count, name in parameters:
+ if function != getter.inflector.radical:
+ continue
+ if type is X:
+ continue
+ print ' // %s' % name
+ print ' {'
+ type, value = getter(*(args + (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
+
def write_line(s):
self.write(' '*self.level + s + '\n')