def __init__(self):

self.vertex_lines = []

self.fragment_lines = []

self.uniforms = []

self.attributes = []

self.feedbacks = []

self.fbos = []

self.conditionals = []

self.enums = {}

self.texunits = []

self.texunit_names = []

self.ubos = []

self.ubo_names = []

self.vertex_included_files = []

self.fragment_included_files = []

self.reading = ""

self.line_offset = 0

self.vertex_offset = 0

fs = open(filename, "r")

line = fs.readline()

while line:

if line.find("[vertex]") != -1:

header_data.reading = "vertex"

line = fs.readline()

header_data.line_offset += 1

header_data.vertex_offset = header_data.line_offset

continue

if line.find("[fragment]") != -1:

header_data.reading = "fragment"

line = fs.readline()

header_data.line_offset += 1

header_data.fragment_offset = header_data.line_offset

continue

while line.find("#include ") != -1:

includeline = line.replace("#include ", "").strip()[1:-1]

import os.path

included_file = os.path.relpath(os.path.dirname(filename) + "/" + includeline)

if not included_file in header_data.vertex_included_files and header_data.reading == "vertex":

header_data.vertex_included_files += [included_file]

if include_file_in_legacygl_header(included_file, header_data, depth + 1) is None:

print("Error in file '" + filename + "': #include " + includeline + "could not be found!")

elif not included_file in header_data.fragment_included_files and header_data.reading == "fragment":

header_data.fragment_included_files += [included_file]

if include_file_in_legacygl_header(included_file, header_data, depth + 1) is None:

print("Error in file '" + filename + "': #include " + includeline + "could not be found!")

line = fs.readline()

if line.find("#ifdef ") != -1:

if line.find("#ifdef ") != -1:

ifdefline = line.replace("#ifdef ", "").strip()

if line.find("_EN_") != -1:

enumbase = ifdefline[:ifdefline.find("_EN_")]

ifdefline = ifdefline.replace("_EN_", "_")

line = line.replace("_EN_", "_")

if enumbase not in header_data.enums:

header_data.enums[enumbase] = []

if ifdefline not in header_data.enums[enumbase]:

header_data.enums[enumbase].append(ifdefline)

elif not ifdefline in header_data.conditionals:

header_data.conditionals += [ifdefline]

if line.find("uniform") != -1 and line.lower().find("texunit:") != -1:

# texture unit

texunitstr = line[line.find(":") + 1:].strip()

if texunitstr == "auto":

texunit = "-1"

else:

texunit = str(int(texunitstr))

uline = line[:line.lower().find("//")]

uline = uline.replace("uniform", "")

uline = uline.replace("highp", "")

uline = uline.replace(";", "")

lines = uline.split(",")

for x in lines:

x = x.strip()

x = x[x.rfind(" ") + 1:]

if x.find("[") != -1:

# unfiorm array

x = x[:x.find("[")]

if not x in header_data.texunit_names:

header_data.texunits += [(x, texunit)]

header_data.texunit_names += [x]

elif line.find("uniform") != -1 and line.lower().find("ubo:") != -1:

# uniform buffer object

ubostr = line[line.find(":") + 1:].strip()

ubo = str(int(ubostr))

uline = line[:line.lower().find("//")]

uline = uline[uline.find("uniform") + len("uniform"):]

uline = uline.replace("highp", "")

uline = uline.replace(";", "")

uline = uline.replace("{", "").strip()

lines = uline.split(",")

for x in lines:

x = x.strip()

x = x[x.rfind(" ") + 1:]

if x.find("[") != -1:

# unfiorm array

x = x[:x.find("[")]

if not x in header_data.ubo_names:

header_data.ubos += [(x, ubo)]

header_data.ubo_names += [x]

elif line.find("uniform") != -1 and line.find("{") == -1 and line.find(";") != -1:

uline = line.replace("uniform", "")

uline = uline.replace(";", "")

lines = uline.split(",")

for x in lines:

x = x.strip()

x = x[x.rfind(" ") + 1:]

if x.find("[") != -1:

# unfiorm array

x = x[:x.find("[")]

if not x in header_data.uniforms:

header_data.uniforms += [x]

if line.strip().find("attribute ") == 0 and line.find("attrib:") != -1:

uline = line.replace("in ", "")

uline = uline.replace("attribute ", "")

uline = uline.replace("highp ", "")

uline = uline.replace(";", "")

uline = uline[uline.find(" "):].strip()

if uline.find("//") != -1:

name, bind = uline.split("//")

if bind.find("attrib:") != -1:

name = name.strip()

bind = bind.replace("attrib:", "").strip()

header_data.attributes += [(name, bind)]

if line.strip().find("out ") == 0 and line.find("tfb:") != -1:

uline = line.replace("out ", "")

uline = uline.replace("highp ", "")

uline = uline.replace(";", "")

uline = uline[uline.find(" "):].strip()

if uline.find("//") != -1:

name, bind = uline.split("//")

if bind.find("tfb:") != -1:

name = name.strip()

bind = bind.replace("tfb:", "").strip()

header_data.feedbacks += [(name, bind)]

line = line.replace("\r", "")

line = line.replace("\n", "")

if header_data.reading == "vertex":

header_data.vertex_lines += [line]

if header_data.reading == "fragment":

header_data.fragment_lines += [line]

line = fs.readline()

header_data.line_offset += 1

fs.close()

header_data = LegacyGLHeaderStruct()

include_file_in_legacygl_header(filename, header_data, 0)

out_file = filename + ".gen.h"

fd = open(out_file, "w")

enum_constants = []

fd.write("/* WARNING, THIS FILE WAS GENERATED, DO NOT EDIT */\n")

out_file_base = out_file

out_file_base = out_file_base[out_file_base.rfind("/") + 1:]

out_file_base = out_file_base[out_file_base.rfind("\\") + 1:]

out_file_ifdef = out_file_base.replace(".", "_").upper()

fd.write("#ifndef " + out_file_ifdef + class_suffix + "_120\n")

fd.write("#define " + out_file_ifdef + class_suffix + "_120\n")

out_file_class = out_file_base.replace(".glsl.gen.h", "").title().replace("_", "").replace(".", "") + "Shader" + class_suffix

fd.write("\n\n")

fd.write("#include \"" + include + "\"\n\n\n")

fd.write("class " + out_file_class + " : public Shader" + class_suffix + " {\n\n")

fd.write("\t virtual String get_shader_name() const { return \"" + out_file_class + "\"; }\n")

fd.write("public:\n\n")

if header_data.conditionals:

fd.write("\tenum Conditionals {\n")

for x in header_data.conditionals:

fd.write("\t\t" + x.upper() + ",\n")

fd.write("\t};\n\n")

if header_data.uniforms:

fd.write("\tenum Uniforms {\n")

for x in header_data.uniforms:

fd.write("\t\t" + x.upper() + ",\n")

fd.write("\t};\n\n")

fd.write("\t_FORCE_INLINE_ int get_uniform(Uniforms p_uniform) const { return _get_uniform(p_uniform); }\n\n")

if header_data.conditionals:

fd.write("\t_FORCE_INLINE_ void set_conditional(Conditionals p_conditional,bool p_enable) { _set_conditional(p_conditional,p_enable); }\n\n")

fd.write("\t#ifdef DEBUG_ENABLED\n ")

fd.write("\t#define _FU if (get_uniform(p_uniform)<0) return; if (!is_version_valid()) return; ERR_FAIL_COND( get_active()!=this ); \n\n ")

fd.write("\t#else\n ")

fd.write("\t#define _FU if (get_uniform(p_uniform)<0) return; \n\n ")

fd.write("\t#endif\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, float p_value) { _FU glUniform1f(get_uniform(p_uniform),p_value); }\n\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, double p_value) { _FU glUniform1f(get_uniform(p_uniform),p_value); }\n\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, uint8_t p_value) { _FU glUniform1i(get_uniform(p_uniform),p_value); }\n\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, int8_t p_value) { _FU glUniform1i(get_uniform(p_uniform),p_value); }\n\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, uint16_t p_value) { _FU glUniform1i(get_uniform(p_uniform),p_value); }\n\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, int16_t p_value) { _FU glUniform1i(get_uniform(p_uniform),p_value); }\n\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, uint32_t p_value) { _FU glUniform1i(get_uniform(p_uniform),p_value); }\n\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, int32_t p_value) { _FU glUniform1i(get_uniform(p_uniform),p_value); }\n\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, const Color& p_color) { _FU GLfloat col[4]={p_color.r,p_color.g,p_color.b,p_color.a}; glUniform4fv(get_uniform(p_uniform),1,col); }\n\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, const Vector2& p_vec2) { _FU GLfloat vec2[2]={p_vec2.x,p_vec2.y}; glUniform2fv(get_uniform(p_uniform),1,vec2); }\n\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, const Size2i& p_vec2) { _FU GLint vec2[2]={p_vec2.x,p_vec2.y}; glUniform2iv(get_uniform(p_uniform),1,vec2); }\n\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, const Vector3& p_vec3) { _FU GLfloat vec3[3]={p_vec3.x,p_vec3.y,p_vec3.z}; glUniform3fv(get_uniform(p_uniform),1,vec3); }\n\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, float p_a, float p_b) { _FU glUniform2f(get_uniform(p_uniform),p_a,p_b); }\n\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, float p_a, float p_b, float p_c) { _FU glUniform3f(get_uniform(p_uniform),p_a,p_b,p_c); }\n\n")

fd.write("\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, float p_a, float p_b, float p_c, float p_d) { _FU glUniform4f(get_uniform(p_uniform),p_a,p_b,p_c,p_d); }\n\n")

fd.write("""\t_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, const Transform& p_transform) { _FU

const Transform &tr = p_transform;

GLfloat matrix[16]={ /* build a 16x16 matrix */

tr.basis.elements[0][0],

tr.basis.elements[1][0],

tr.basis.elements[2][0],

0,

tr.basis.elements[0][1],

tr.basis.elements[1][1],

tr.basis.elements[2][1],

0,

tr.basis.elements[0][2],

tr.basis.elements[1][2],

tr.basis.elements[2][2],

0,

tr.origin.x,

tr.origin.y,

tr.origin.z,

1

};

glUniformMatrix4fv(get_uniform(p_uniform),1,false,matrix);

}

""")

fd.write("""_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, const Transform2D& p_transform) { _FU

const Transform2D &tr = p_transform;

GLfloat matrix[16]={ /* build a 16x16 matrix */

tr.elements[0][0],

tr.elements[0][1],

0,

0,

tr.elements[1][0],

tr.elements[1][1],

0,

0,

0,

0,

1,

0,

tr.elements[2][0],

tr.elements[2][1],

0,

1

};

glUniformMatrix4fv(get_uniform(p_uniform),1,false,matrix);

}

""")

fd.write("""_FORCE_INLINE_ void set_uniform(Uniforms p_uniform, const CameraMatrix& p_matrix) { _FU

GLfloat matrix[16];

for (int i=0;i<4;i++) {

for (int j=0;j<4;j++) {

matrix[i*4+j]=p_matrix.matrix[i][j];

}

}

glUniformMatrix4fv(get_uniform(p_uniform),1,false,matrix);

}""")

fd.write("\n\n#undef _FU\n\n\n")

fd.write("\tvirtual void init() {\n\n")

enum_value_count = 0

if header_data.enums:

fd.write("\t\t//Written using math, given nonstandarity of 64 bits integer constants..\n")

fd.write("\t\tstatic const Enum _enums[]={\n")

bitofs = len(header_data.conditionals)

enum_vals = []

for xv in header_data.enums:

x = header_data.enums[xv]

bits = 1

amt = len(x)

while (2 ** bits < amt):

bits += 1

strs = "{"

for i in range(amt):

strs += "\"#define " + x[i] + "\\n\","

c = {}

c["set_mask"] = "uint64_t(" + str(i) + ")<<" + str(bitofs)

c["clear_mask"] = "((uint64_t(1)<<40)-1) ^ (((uint64_t(1)<<" + str(bits) + ") - 1)<<" + str(bitofs) + ")"

enum_vals.append(c)

enum_constants.append(x[i])

strs += "NULL}"

fd.write("\t\t\t{(uint64_t(1<<" + str(bits) + ")-1)<<" + str(bitofs) + "," + str(bitofs) + "," + strs + "},\n")

bitofs += bits

fd.write("\t\t};\n\n")

fd.write("\t\tstatic const EnumValue _enum_values[]={\n")

enum_value_count = len(enum_vals)

for x in enum_vals:

fd.write("\t\t\t{" + x["set_mask"] + "," + x["clear_mask"] + "},\n")

fd.write("\t\t};\n\n")

conditionals_found = []

if header_data.conditionals:

fd.write("\t\tstatic const char* _conditional_strings[]={\n")

if header_data.conditionals:

for x in header_data.conditionals:

fd.write("\t\t\t\"#define " + x + "\\n\",\n")

conditionals_found.append(x)

fd.write("\t\t};\n\n")

else:

fd.write("\t\tstatic const char **_conditional_strings=NULL;\n")

if header_data.uniforms:

fd.write("\t\tstatic const char* _uniform_strings[]={\n")

if header_data.uniforms:

for x in header_data.uniforms:

fd.write("\t\t\t\"" + x + "\",\n")

fd.write("\t\t};\n\n")

else:

fd.write("\t\tstatic const char **_uniform_strings=NULL;\n")

if output_attribs:

if header_data.attributes:

fd.write("\t\tstatic AttributePair _attribute_pairs[]={\n")

for x in header_data.attributes:

fd.write("\t\t\t{\"" + x[0] + "\"," + x[1] + "},\n")

fd.write("\t\t};\n\n")

else:

fd.write("\t\tstatic AttributePair *_attribute_pairs=NULL;\n")

feedback_count = 0

if not gles2 and len(header_data.feedbacks):

fd.write("\t\tstatic const Feedback _feedbacks[]={\n")

for x in header_data.feedbacks:

name = x[0]

cond = x[1]

if cond in conditionals_found:

fd.write("\t\t\t{\"" + name + "\"," + str(conditionals_found.index(cond)) + "},\n")

else:

fd.write("\t\t\t{\"" + name + "\",-1},\n")

feedback_count += 1

fd.write("\t\t};\n\n")

else:

if gles2:

pass

else:

fd.write("\t\tstatic const Feedback* _feedbacks=NULL;\n")

if header_data.texunits:

fd.write("\t\tstatic TexUnitPair _texunit_pairs[]={\n")

for x in header_data.texunits:

fd.write("\t\t\t{\"" + x[0] + "\"," + x[1] + "},\n")

fd.write("\t\t};\n\n")

else:

fd.write("\t\tstatic TexUnitPair *_texunit_pairs=NULL;\n")

if not gles2 and header_data.ubos:

fd.write("\t\tstatic UBOPair _ubo_pairs[]={\n")

for x in header_data.ubos:

fd.write("\t\t\t{\"" + x[0] + "\"," + x[1] + "},\n")

fd.write("\t\t};\n\n")

else:

if gles2:

pass

else:

fd.write("\t\tstatic UBOPair *_ubo_pairs=NULL;\n")

fd.write("\t\tstatic const char _vertex_code[]={\n")

for x in header_data.vertex_lines:

for c in x:

fd.write(str(ord(c)) + ",")

fd.write(str(ord('\n')) + ",")

fd.write("\t\t0};\n\n")

fd.write("\t\tstatic const int _vertex_code_start=" + str(header_data.vertex_offset) + ";\n")

fd.write("\t\tstatic const char _fragment_code[]={\n")

for x in header_data.fragment_lines:

for c in x:

fd.write(str(ord(c)) + ",")

fd.write(str(ord('\n')) + ",")

fd.write("\t\t0};\n\n")

fd.write("\t\tstatic const int _fragment_code_start=" + str(header_data.fragment_offset) + ";\n")

if output_attribs:

if gles2:

fd.write("\t\tsetup(_conditional_strings," + str(len(header_data.conditionals)) + ",_uniform_strings," + str(len(header_data.uniforms)) + ",_attribute_pairs," + str(

len(header_data.attributes)) + ", _texunit_pairs," + str(len(header_data.texunits)) + ",_vertex_code,_fragment_code,_vertex_code_start,_fragment_code_start);\n")

else:

fd.write("\t\tsetup(_conditional_strings," + str(len(header_data.conditionals)) + ",_uniform_strings," + str(len(header_data.uniforms)) + ",_attribute_pairs," + str(

len(header_data.attributes)) + ", _texunit_pairs," + str(len(header_data.texunits)) + ",_ubo_pairs," + str(len(header_data.ubos)) + ",_feedbacks," + str(

feedback_count) + ",_vertex_code,_fragment_code,_vertex_code_start,_fragment_code_start);\n")

else:

if gles2:

fd.write("\t\tsetup(_conditional_strings," + str(len(header_data.conditionals)) + ",_uniform_strings," + str(len(header_data.uniforms)) + ",_texunit_pairs," + str(

len(header_data.texunits)) + ",_enums," + str(len(header_data.enums)) + ",_enum_values," + str(

enum_value_count) + ",_vertex_code,_fragment_code,_vertex_code_start,_fragment_code_start);\n")

else:

fd.write("\t\tsetup(_conditional_strings," + str(len(header_data.conditionals)) + ",_uniform_strings," + str(len(header_data.uniforms)) + ",_texunit_pairs," + str(

len(header_data.texunits)) + ",_enums," + str(len(header_data.enums)) + ",_enum_values," + str(enum_value_count) + ",_ubo_pairs," + str(len(header_data.ubos)) + ",_feedbacks," + str(

feedback_count) + ",_vertex_code,_fragment_code,_vertex_code_start,_fragment_code_start);\n")

fd.write("\t}\n\n")

if enum_constants:

fd.write("\tenum EnumConditionals {\n")

for x in enum_constants:

fd.write("\t\t" + x.upper() + ",\n")

fd.write("\t};\n\n")

fd.write("\tvoid set_enum_conditional(EnumConditionals p_cond) { _set_enum_conditional(p_cond); }\n")

fd.write("};\n\n")

fd.write("#endif\n\n")