mirror of
https://github.com/godotengine/godot
synced 2024-07-20 18:10:40 +00:00
51ed3aef63
This allows Godot to automatically compress meshes to save a lot of bandwidth. In general, this requires no interaction from the user and should result in no noticable quality loss. This scheme is not backwards compatible, so we have provided an upgrade mechanism, and a mesh versioning mechanism. Existing meshes can still be used as a result, but users can get a performance boost by reimporting assets.
609 lines
23 KiB
Python
609 lines
23 KiB
Python
"""Functions used to generate source files during build time
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All such functions are invoked in a subprocess on Windows to prevent build flakiness.
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"""
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import os.path
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from typing import Optional
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from platform_methods import subprocess_main
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class GLES3HeaderStruct:
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def __init__(self):
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self.vertex_lines = []
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self.fragment_lines = []
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self.uniforms = []
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self.fbos = []
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self.texunits = []
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self.texunit_names = []
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self.ubos = []
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self.ubo_names = []
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self.feedbacks = []
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self.vertex_included_files = []
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self.fragment_included_files = []
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self.reading = ""
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self.line_offset = 0
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self.vertex_offset = 0
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self.fragment_offset = 0
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self.variant_defines = []
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self.variant_names = []
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self.specialization_names = []
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self.specialization_values = []
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def include_file_in_gles3_header(filename: str, header_data: GLES3HeaderStruct, depth: int):
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fs = open(filename, "r")
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line = fs.readline()
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while line:
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if line.find("=") != -1 and header_data.reading == "":
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# Mode
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eqpos = line.find("=")
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defname = line[:eqpos].strip().upper()
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define = line[eqpos + 1 :].strip()
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header_data.variant_names.append(defname)
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header_data.variant_defines.append(define)
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line = fs.readline()
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header_data.line_offset += 1
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header_data.vertex_offset = header_data.line_offset
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continue
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if line.find("=") != -1 and header_data.reading == "specializations":
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# Specialization
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eqpos = line.find("=")
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specname = line[:eqpos].strip()
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specvalue = line[eqpos + 1 :]
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header_data.specialization_names.append(specname)
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header_data.specialization_values.append(specvalue)
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line = fs.readline()
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header_data.line_offset += 1
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header_data.vertex_offset = header_data.line_offset
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continue
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if line.find("#[modes]") != -1:
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# Nothing really, just skip
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line = fs.readline()
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header_data.line_offset += 1
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header_data.vertex_offset = header_data.line_offset
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continue
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if line.find("#[specializations]") != -1:
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header_data.reading = "specializations"
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line = fs.readline()
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header_data.line_offset += 1
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header_data.vertex_offset = header_data.line_offset
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continue
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if line.find("#[vertex]") != -1:
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header_data.reading = "vertex"
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line = fs.readline()
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header_data.line_offset += 1
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header_data.vertex_offset = header_data.line_offset
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continue
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if line.find("#[fragment]") != -1:
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header_data.reading = "fragment"
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line = fs.readline()
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header_data.line_offset += 1
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header_data.fragment_offset = header_data.line_offset
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continue
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while line.find("#include ") != -1:
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includeline = line.replace("#include ", "").strip()[1:-1]
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included_file = os.path.relpath(os.path.dirname(filename) + "/" + includeline)
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if not included_file in header_data.vertex_included_files and header_data.reading == "vertex":
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header_data.vertex_included_files += [included_file]
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if include_file_in_gles3_header(included_file, header_data, depth + 1) is None:
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print("Error in file '" + filename + "': #include " + includeline + "could not be found!")
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elif not included_file in header_data.fragment_included_files and header_data.reading == "fragment":
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header_data.fragment_included_files += [included_file]
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if include_file_in_gles3_header(included_file, header_data, depth + 1) is None:
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print("Error in file '" + filename + "': #include " + includeline + "could not be found!")
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line = fs.readline()
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if line.find("uniform") != -1 and line.lower().find("texunit:") != -1:
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# texture unit
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texunitstr = line[line.find(":") + 1 :].strip()
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if texunitstr == "auto":
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texunit = "-1"
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else:
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texunit = str(int(texunitstr))
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uline = line[: line.lower().find("//")]
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uline = uline.replace("uniform", "")
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uline = uline.replace("highp", "")
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uline = uline.replace(";", "")
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lines = uline.split(",")
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for x in lines:
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x = x.strip()
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x = x[x.rfind(" ") + 1 :]
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if x.find("[") != -1:
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# unfiorm array
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x = x[: x.find("[")]
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if not x in header_data.texunit_names:
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header_data.texunits += [(x, texunit)]
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header_data.texunit_names += [x]
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elif line.find("uniform") != -1 and line.lower().find("ubo:") != -1:
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# uniform buffer object
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ubostr = line[line.find(":") + 1 :].strip()
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ubo = str(int(ubostr))
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uline = line[: line.lower().find("//")]
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uline = uline[uline.find("uniform") + len("uniform") :]
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uline = uline.replace("highp", "")
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uline = uline.replace(";", "")
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uline = uline.replace("{", "").strip()
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lines = uline.split(",")
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for x in lines:
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x = x.strip()
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x = x[x.rfind(" ") + 1 :]
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if x.find("[") != -1:
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# unfiorm array
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x = x[: x.find("[")]
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if not x in header_data.ubo_names:
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header_data.ubos += [(x, ubo)]
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header_data.ubo_names += [x]
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elif line.find("uniform") != -1 and line.find("{") == -1 and line.find(";") != -1:
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uline = line.replace("uniform", "")
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uline = uline.replace(";", "")
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lines = uline.split(",")
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for x in lines:
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x = x.strip()
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x = x[x.rfind(" ") + 1 :]
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if x.find("[") != -1:
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# unfiorm array
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x = x[: x.find("[")]
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if not x in header_data.uniforms:
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header_data.uniforms += [x]
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if (line.strip().find("out ") == 0 or line.strip().find("flat ") == 0) and line.find("tfb:") != -1:
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uline = line.replace("flat ", "")
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uline = uline.replace("out ", "")
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uline = uline.replace("highp ", "")
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uline = uline.replace(";", "")
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uline = uline[uline.find(" ") :].strip()
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if uline.find("//") != -1:
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name, bind = uline.split("//")
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if bind.find("tfb:") != -1:
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name = name.strip()
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bind = bind.replace("tfb:", "").strip()
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header_data.feedbacks += [(name, bind)]
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line = line.replace("\r", "")
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line = line.replace("\n", "")
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if header_data.reading == "vertex":
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header_data.vertex_lines += [line]
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if header_data.reading == "fragment":
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header_data.fragment_lines += [line]
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line = fs.readline()
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header_data.line_offset += 1
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fs.close()
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return header_data
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def build_gles3_header(
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filename: str,
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include: str,
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class_suffix: str,
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optional_output_filename: str = None,
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header_data: Optional[GLES3HeaderStruct] = None,
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):
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header_data = header_data or GLES3HeaderStruct()
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include_file_in_gles3_header(filename, header_data, 0)
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if optional_output_filename is None:
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out_file = filename + ".gen.h"
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else:
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out_file = optional_output_filename
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fd = open(out_file, "w")
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defspec = 0
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defvariant = ""
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fd.write("/* WARNING, THIS FILE WAS GENERATED, DO NOT EDIT */\n")
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out_file_base = out_file
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out_file_base = out_file_base[out_file_base.rfind("/") + 1 :]
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out_file_base = out_file_base[out_file_base.rfind("\\") + 1 :]
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out_file_ifdef = out_file_base.replace(".", "_").upper()
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fd.write("#ifndef " + out_file_ifdef + class_suffix + "_GLES3\n")
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fd.write("#define " + out_file_ifdef + class_suffix + "_GLES3\n")
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out_file_class = (
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out_file_base.replace(".glsl.gen.h", "").title().replace("_", "").replace(".", "") + "Shader" + class_suffix
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)
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fd.write("\n\n")
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fd.write('#include "' + include + '"\n\n\n')
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fd.write("class " + out_file_class + " : public Shader" + class_suffix + " {\n\n")
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fd.write("public:\n\n")
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if header_data.uniforms:
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fd.write("\tenum Uniforms {\n")
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for x in header_data.uniforms:
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fd.write("\t\t" + x.upper() + ",\n")
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fd.write("\t};\n\n")
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if header_data.variant_names:
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fd.write("\tenum ShaderVariant {\n")
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for x in header_data.variant_names:
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fd.write("\t\t" + x + ",\n")
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fd.write("\t};\n\n")
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else:
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fd.write("\tenum ShaderVariant { DEFAULT };\n\n")
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defvariant = "=DEFAULT"
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if header_data.specialization_names:
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fd.write("\tenum Specializations {\n")
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counter = 0
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for x in header_data.specialization_names:
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fd.write("\t\t" + x.upper() + "=" + str(1 << counter) + ",\n")
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counter += 1
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fd.write("\t};\n\n")
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for i in range(len(header_data.specialization_names)):
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defval = header_data.specialization_values[i].strip()
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if defval.upper() == "TRUE" or defval == "1":
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defspec |= 1 << i
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fd.write(
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"\t_FORCE_INLINE_ bool version_bind_shader(RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { return _version_bind_shader(p_version,p_variant,p_specialization); }\n\n"
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)
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if header_data.uniforms:
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fd.write(
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"\t_FORCE_INLINE_ int version_get_uniform(Uniforms p_uniform,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { return _version_get_uniform(p_uniform,p_version,p_variant,p_specialization); }\n\n"
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)
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fd.write(
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"\t#define _FU if (version_get_uniform(p_uniform,p_version,p_variant,p_specialization)<0) return; \n\n "
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, float p_value,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU glUniform1f(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),p_value); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, double p_value,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU glUniform1f(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),p_value); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, uint8_t p_value,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU glUniform1ui(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),p_value); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, int8_t p_value,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU glUniform1i(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),p_value); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, uint16_t p_value,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU glUniform1ui(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),p_value); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, int16_t p_value,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU glUniform1i(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),p_value); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, uint32_t p_value,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU glUniform1ui(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),p_value); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, int32_t p_value,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU glUniform1i(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),p_value); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, const Color& p_color,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU GLfloat col[4]={p_color.r,p_color.g,p_color.b,p_color.a}; glUniform4fv(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),1,col); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, const Vector2& p_vec2,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU GLfloat vec2[2]={float(p_vec2.x),float(p_vec2.y)}; glUniform2fv(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),1,vec2); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, const Size2i& p_vec2,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU GLint vec2[2]={GLint(p_vec2.x),GLint(p_vec2.y)}; glUniform2iv(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),1,vec2); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, const Vector3& p_vec3,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU GLfloat vec3[3]={float(p_vec3.x),float(p_vec3.y),float(p_vec3.z)}; glUniform3fv(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),1,vec3); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, const Vector4& p_vec4,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU GLfloat vec4[4]={float(p_vec4.x),float(p_vec4.y),float(p_vec4.z),float(p_vec4.w)}; glUniform4fv(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),1,vec4); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, float p_a, float p_b,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU glUniform2f(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),p_a,p_b); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, float p_a, float p_b, float p_c,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU glUniform3f(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),p_a,p_b,p_c); }\n\n"
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)
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fd.write(
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"\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, float p_a, float p_b, float p_c, float p_d,RID p_version,ShaderVariant p_variant"
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+ defvariant
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+ ",uint64_t p_specialization="
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+ str(defspec)
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+ ") { _FU glUniform4f(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),p_a,p_b,p_c,p_d); }\n\n"
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)
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fd.write(
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"""\t_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, const Transform3D& p_transform,RID p_version,ShaderVariant p_variant"""
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+ defvariant
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+ """,uint64_t p_specialization="""
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+ str(defspec)
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+ """) { _FU
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const Transform3D &tr = p_transform;
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GLfloat matrix[16]={ /* build a 16x16 matrix */
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(GLfloat)tr.basis.rows[0][0],
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(GLfloat)tr.basis.rows[1][0],
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(GLfloat)tr.basis.rows[2][0],
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(GLfloat)0,
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(GLfloat)tr.basis.rows[0][1],
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(GLfloat)tr.basis.rows[1][1],
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(GLfloat)tr.basis.rows[2][1],
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(GLfloat)0,
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(GLfloat)tr.basis.rows[0][2],
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(GLfloat)tr.basis.rows[1][2],
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(GLfloat)tr.basis.rows[2][2],
|
|
(GLfloat)0,
|
|
(GLfloat)tr.origin.x,
|
|
(GLfloat)tr.origin.y,
|
|
(GLfloat)tr.origin.z,
|
|
(GLfloat)1
|
|
};
|
|
|
|
glUniformMatrix4fv(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),1,false,matrix);
|
|
|
|
}
|
|
|
|
"""
|
|
)
|
|
|
|
fd.write(
|
|
"""_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, const Transform2D& p_transform,RID p_version,ShaderVariant p_variant"""
|
|
+ defvariant
|
|
+ """,uint64_t p_specialization="""
|
|
+ str(defspec)
|
|
+ """) { _FU
|
|
|
|
const Transform2D &tr = p_transform;
|
|
|
|
GLfloat matrix[16]={ /* build a 16x16 matrix */
|
|
(GLfloat)tr.columns[0][0],
|
|
(GLfloat)tr.columns[0][1],
|
|
(GLfloat)0,
|
|
(GLfloat)0,
|
|
(GLfloat)tr.columns[1][0],
|
|
(GLfloat)tr.columns[1][1],
|
|
(GLfloat)0,
|
|
(GLfloat)0,
|
|
(GLfloat)0,
|
|
(GLfloat)0,
|
|
(GLfloat)1,
|
|
(GLfloat)0,
|
|
(GLfloat)tr.columns[2][0],
|
|
(GLfloat)tr.columns[2][1],
|
|
(GLfloat)0,
|
|
(GLfloat)1
|
|
};
|
|
|
|
glUniformMatrix4fv(version_get_uniform(p_uniform,p_version,p_variant,p_specialization),1,false,matrix);
|
|
|
|
}
|
|
|
|
"""
|
|
)
|
|
|
|
fd.write(
|
|
"""_FORCE_INLINE_ void version_set_uniform(Uniforms p_uniform, const Projection& p_matrix, RID p_version, ShaderVariant p_variant"""
|
|
+ defvariant
|
|
+ """,uint64_t p_specialization="""
|
|
+ str(defspec)
|
|
+ """) { _FU
|
|
|
|
GLfloat matrix[16];
|
|
|
|
for (int i = 0; i < 4; i++) {
|
|
for (int j = 0; j < 4; j++) {
|
|
matrix[i * 4 + j] = p_matrix.columns[i][j];
|
|
}
|
|
}
|
|
|
|
glUniformMatrix4fv(version_get_uniform(p_uniform, p_version, p_variant, p_specialization), 1, false, matrix);
|
|
}"""
|
|
)
|
|
|
|
fd.write("\n\n#undef _FU\n\n\n")
|
|
|
|
fd.write("protected:\n\n")
|
|
|
|
fd.write("\tvirtual void _init() override {\n\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=nullptr;\n")
|
|
|
|
variant_count = 1
|
|
if len(header_data.variant_defines) > 0:
|
|
fd.write("\t\tstatic const char* _variant_defines[]={\n")
|
|
for x in header_data.variant_defines:
|
|
fd.write('\t\t\t"' + x + '",\n')
|
|
fd.write("\t\t};\n\n")
|
|
variant_count = len(header_data.variant_defines)
|
|
else:
|
|
fd.write("\t\tstatic const char **_variant_defines[]={" "};\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=nullptr;\n")
|
|
|
|
if 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:
|
|
fd.write("\t\tstatic UBOPair *_ubo_pairs=nullptr;\n")
|
|
|
|
specializations_found = []
|
|
|
|
if header_data.specialization_names:
|
|
fd.write("\t\tstatic Specialization _spec_pairs[]={\n")
|
|
for i in range(len(header_data.specialization_names)):
|
|
defval = header_data.specialization_values[i].strip()
|
|
if defval.upper() == "TRUE" or defval == "1":
|
|
defval = "true"
|
|
else:
|
|
defval = "false"
|
|
|
|
fd.write('\t\t\t{"' + header_data.specialization_names[i] + '",' + defval + "},\n")
|
|
specializations_found.append(header_data.specialization_names[i])
|
|
fd.write("\t\t};\n\n")
|
|
else:
|
|
fd.write("\t\tstatic Specialization *_spec_pairs=nullptr;\n")
|
|
|
|
feedback_count = 0
|
|
|
|
if header_data.feedbacks:
|
|
fd.write("\t\tstatic const Feedback _feedbacks[]={\n")
|
|
for x in header_data.feedbacks:
|
|
name = x[0]
|
|
spec = x[1]
|
|
if spec in specializations_found:
|
|
fd.write('\t\t\t{"' + name + '",' + str(1 << specializations_found.index(spec)) + "},\n")
|
|
else:
|
|
fd.write('\t\t\t{"' + name + '",0},\n')
|
|
|
|
feedback_count += 1
|
|
|
|
fd.write("\t\t};\n\n")
|
|
else:
|
|
fd.write("\t\tstatic const Feedback* _feedbacks=nullptr;\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 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\t_setup(_vertex_code,_fragment_code,"'
|
|
+ out_file_class
|
|
+ '",'
|
|
+ str(len(header_data.uniforms))
|
|
+ ",_uniform_strings,"
|
|
+ str(len(header_data.ubos))
|
|
+ ",_ubo_pairs,"
|
|
+ str(feedback_count)
|
|
+ ",_feedbacks,"
|
|
+ str(len(header_data.texunits))
|
|
+ ",_texunit_pairs,"
|
|
+ str(len(header_data.specialization_names))
|
|
+ ",_spec_pairs,"
|
|
+ str(variant_count)
|
|
+ ",_variant_defines);\n"
|
|
)
|
|
|
|
fd.write("\t}\n\n")
|
|
|
|
fd.write("};\n\n")
|
|
fd.write("#endif\n\n")
|
|
fd.close()
|
|
|
|
|
|
def build_gles3_headers(target, source, env):
|
|
for x in source:
|
|
build_gles3_header(str(x), include="drivers/gles3/shader_gles3.h", class_suffix="GLES3")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
subprocess_main(globals())
|