GLES2: Auto-generate entry points file.
BUG=angleproject:1309
Change-Id: I7817444c3ea56f932fe769a860f4a70b29262019
Reviewed-on: https://chromium-review.googlesource.com/483427
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
diff --git a/scripts/generate_entry_points.py b/scripts/generate_entry_points.py
index ec73d75..dfc0515 100644
--- a/scripts/generate_entry_points.py
+++ b/scripts/generate_entry_points.py
@@ -44,10 +44,76 @@
#endif // LIBGLESV2_ENTRYPOINTSGLES{major_version}{minor_version}_AUTOGEN_H_
"""
+template_entry_point_source = """// GENERATED FILE - DO NOT EDIT.
+// Generated by {script_name} using data from {data_source_name}.
+//
+// Copyright {year} The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// entry_points_gles_{major_version}_{minor_version}_autogen.cpp:
+// Defines the GLES {major_version}.{minor_version} entry points.
+
+#include "libGLESv2/entry_points_gles_{major_version}_{minor_version}_autogen.h"
+
+#include "common/debug.h"
+#include "libANGLE/Context.h"
+#include "libANGLE/validationES2.h"
+#include "libGLESv2/global_state.h"
+
+namespace gl
+{{
+{entry_points}}} // namespace gl
+"""
+
+template_entry_points_enum_header = """// GENERATED FILE - DO NOT EDIT.
+// Generated by {script_name} using data from {data_source_name}.
+//
+// Copyright {year} The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// entry_points_enum_autogen.h:
+// Defines the GLES entry points enumeration.
+
+#ifndef LIBGLESV2_ENTRYPOINTSENUM_AUTOGEN_H_
+#define LIBGLESV2_ENTRYPOINTSENUM_AUTOGEN_H_
+
+namespace gl
+{{
+enum class EntryPoint
+{{
+{entry_points_list}
+}};
+}} // namespace gl
+#endif // LIBGLESV2_ENTRY_POINTS_ENUM_AUTOGEN_H_
+"""
+
template_entry_point_decl = """ANGLE_EXPORT {return_type}GL_APIENTRY {name}({params});"""
+template_entry_point_def = """{return_type}GL_APIENTRY {name}({params})
+{{
+ EVENT("({format_params})"{comma_if_needed}{pass_params});
+
+ Context *context = GetValidGlobalContext();
+ if (context)
+ {{
+ context->gatherParams<EntryPoint::{name}>({pass_params});
+
+ if (!context->skipValidation() && !Validate{name}({validate_params}))
+ {{
+ return{default_return};
+ }}
+
+ {return_if_needed}context->{name_lower}({pass_params});
+ }}
+{default_return_if_needed}}}
+"""
+
commands = root.find(".//commands[@namespace='GL']")
entry_point_decls_gles_2_0 = []
+entry_point_defs_gles_2_0 = []
+cmd_names = []
def format_entry_point_decl(cmd_name, proto, params):
return template_entry_point_decl.format(
@@ -55,12 +121,73 @@
return_type = proto[:-len(cmd_name)],
params = ", ".join(params))
+def type_name_sep_index(param):
+ space = param.rfind(" ")
+ pointer = param.rfind("*")
+ return max(space, pointer)
+
+def just_the_type(param):
+ return param[:type_name_sep_index(param)]
+
+def just_the_name(param):
+ return param[type_name_sep_index(param)+1:]
+
+format_dict = {
+ "GLbitfield": "0x%X",
+ "GLboolean": "%u",
+ "GLenum": "0x%X",
+ "GLfloat": "%f",
+ "GLint": "%d",
+ "GLintptr": "%d",
+ "GLsizei": "%d",
+ "GLsizeiptr": "%d",
+ "GLuint": "%d"
+}
+
+def param_format_string(param):
+ if "*" in param:
+ return param + " = 0x%0.8p"
+ else:
+ return param + " = " + format_dict[just_the_type(param)]
+
+def default_return_value(return_type):
+ if return_type == "void":
+ return ""
+ elif return_type == "GLenum" or return_type == "GLint" or return_type == "GLuint":
+ return "0"
+ elif return_type == "GLboolean":
+ return "GL_FALSE"
+ elif "*" in return_type:
+ return "nullptr"
+ else:
+ print(return_type)
+
+def format_entry_point_def(cmd_name, proto, params):
+ pass_params = [just_the_name(param) for param in params]
+ format_params = [param_format_string(param) for param in params]
+ return_type = proto[:-len(cmd_name)]
+ default_return = default_return_value(return_type.strip())
+ return template_entry_point_def.format(
+ name = cmd_name[2:],
+ name_lower = cmd_name[2:3].lower() + cmd_name[3:],
+ return_type = return_type,
+ params = ", ".join(params),
+ pass_params = ", ".join(pass_params),
+ comma_if_needed = ", " if len(params) > 0 else "",
+ validate_params = ", ".join(["context"] + pass_params),
+ format_params = ", ".join(format_params),
+ default_return = "" if default_return == "" else " " + default_return,
+ return_if_needed = "" if default_return == "" else "return ",
+ default_return_if_needed = "" if default_return == "" else " return " + default_return + ";\n")
+
for cmd_name in gles2_commands:
command_xpath = "command/proto[name='" + cmd_name + "']/.."
command = commands.find(command_xpath)
params = ["".join(param.itertext()) for param in command.findall("./param")]
proto = "".join(command.find("./proto").itertext())
+ cmd_names += [cmd_name]
entry_point_decls_gles_2_0 += [format_entry_point_decl(cmd_name, proto, params)]
+ entry_point_defs_gles_2_0 += [format_entry_point_def(cmd_name, proto, params)]
gles_2_0_header = template_entry_point_header.format(
script_name = os.path.basename(sys.argv[0]),
@@ -70,11 +197,37 @@
minor_version = 0,
entry_points = "\n".join(entry_point_decls_gles_2_0))
+gles_2_0_source = template_entry_point_source.format(
+ script_name = os.path.basename(sys.argv[0]),
+ data_source_name = "gl.xml",
+ year = date.today().year,
+ major_version = 2,
+ minor_version = 0,
+ entry_points = "\n".join(entry_point_defs_gles_2_0))
+
+# TODO(jmadill): Remove manually added entry points.
+manual_cmd_names = ["Invalid"] + [cmd[2:] for cmd in cmd_names] + ["DrawElementsInstanced", "DrawRangeElements", "DrawElementsInstancedANGLE"]
+entry_points_enum = template_entry_points_enum_header.format(
+ script_name = os.path.basename(sys.argv[0]),
+ data_source_name = "gl.xml",
+ year = date.today().year,
+ entry_points_list = ",\n".join([" " + cmd for cmd in manual_cmd_names]))
+
def path_to(folder, file):
return os.path.join(script_relative(".."), "src", folder, file)
gles_2_0_header_path = path_to("libGLESv2", "entry_points_gles_2_0_autogen.h")
+gles_2_0_source_path = path_to("libGLESv2", "entry_points_gles_2_0_autogen.cpp")
+entry_points_enum_header_path = path_to("libANGLE", "entry_points_enum_autogen.h")
with open(gles_2_0_header_path, "w") as out:
out.write(gles_2_0_header)
out.close()
+
+with open(gles_2_0_source_path, "w") as out:
+ out.write(gles_2_0_source)
+ out.close()
+
+with open(entry_points_enum_header_path, "w") as out:
+ out.write(entry_points_enum)
+ out.close()
\ No newline at end of file