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build_cmd_buffer_lib.py
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build_cmd_buffer_lib.py
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# Copyright 2018 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Common code generator for command buffers."""
import errno
import itertools
import os
import os.path
import re
import platform
from subprocess import call
_SIZE_OF_UINT32 = 4
_SIZE_OF_COMMAND_HEADER = 4
_FIRST_SPECIFIC_COMMAND_ID = 256
_LICENSE = """// Copyright %s The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
"""
_DO_NOT_EDIT_WARNING = """// This file is auto-generated from
// gpu/command_buffer/build_%s_cmd_buffer.py
// It's formatted by clang-format using chromium coding style:
// clang-format -i -style=chromium filename
// DO NOT EDIT!
"""
# This string is copied directly out of the gl2.h file from GLES2.0
#
# Edits:
#
# *) Any argument that is a resourceID has been changed to GLid<Type>.
# (not pointer arguments) and if it's allowed to be zero it's GLidZero<Type>
# If it's allowed to not exist it's GLidBind<Type>
#
# *) All GLenums have been changed to GLenumTypeOfEnum
#
_GL_TYPES = {
'GLenum': 'unsigned int',
'GLboolean': 'unsigned char',
'GLbitfield': 'unsigned int',
'GLbyte': 'signed char',
'GLshort': 'short',
'GLint': 'int',
'GLsizei': 'int',
'GLubyte': 'unsigned char',
'GLushort': 'unsigned short',
'GLuint': 'unsigned int',
'GLfloat': 'float',
'GLclampf': 'float',
'GLvoid': 'void',
'GLfixed': 'int',
'GLclampx': 'int'
}
_GL_TYPES_32 = {
'GLintptr': 'long int',
'GLsizeiptr': 'long int'
}
_GL_TYPES_64 = {
'GLintptr': 'long long int',
'GLsizeiptr': 'long long int'
}
_ETC_COMPRESSED_TEXTURE_FORMATS = [
'GL_COMPRESSED_R11_EAC',
'GL_COMPRESSED_SIGNED_R11_EAC',
'GL_COMPRESSED_RG11_EAC',
'GL_COMPRESSED_SIGNED_RG11_EAC',
'GL_COMPRESSED_RGB8_ETC2',
'GL_COMPRESSED_SRGB8_ETC2',
'GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2',
'GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2',
'GL_COMPRESSED_RGBA8_ETC2_EAC',
'GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC',
]
# This table specifies the different pepper interfaces that are supported for
# GL commands. 'dev' is true if it's a dev interface.
_PEPPER_INTERFACES = [
{'name': '', 'dev': False},
{'name': 'InstancedArrays', 'dev': False},
{'name': 'FramebufferBlit', 'dev': False},
{'name': 'FramebufferMultisample', 'dev': False},
{'name': 'ChromiumEnableFeature', 'dev': False},
{'name': 'ChromiumMapSub', 'dev': False},
{'name': 'Query', 'dev': False},
{'name': 'VertexArrayObject', 'dev': False},
{'name': 'DrawBuffers', 'dev': True},
]
# Capabilities selected with glEnable
# on_change: string of C++ code that is executed when the state is changed.
_CAPABILITY_FLAGS = [
{'name': 'blend'},
{'name': 'cull_face'},
{'name': 'depth_test',
'on_change': 'framebuffer_state_.clear_state_dirty = true;'},
{'name': 'dither', 'default': True},
{'name': 'framebuffer_srgb_ext', 'default': True, 'no_init': True,
'extension_flag': 'ext_srgb_write_control'},
{'name': 'polygon_offset_fill'},
{'name': 'sample_alpha_to_coverage'},
{'name': 'sample_coverage'},
{'name': 'scissor_test'},
{'name': 'stencil_test',
'on_change': '''state_.stencil_state_changed_since_validation = true;
framebuffer_state_.clear_state_dirty = true;'''},
{'name': 'rasterizer_discard', 'es3': True},
{'name': 'primitive_restart_fixed_index', 'es3': True},
{'name': 'multisample_ext', 'default': True,
'extension_flag': 'ext_multisample_compatibility'},
{'name': 'sample_alpha_to_one_ext',
'extension_flag': 'ext_multisample_compatibility'},
]
_STATE_INFO = {
'ClearColor': {
'type': 'Normal',
'func': 'ClearColor',
'enum': 'GL_COLOR_CLEAR_VALUE',
'states': [
{'name': 'color_clear_red', 'type': 'GLfloat', 'default': '0.0f'},
{'name': 'color_clear_green', 'type': 'GLfloat', 'default': '0.0f'},
{'name': 'color_clear_blue', 'type': 'GLfloat', 'default': '0.0f'},
{'name': 'color_clear_alpha', 'type': 'GLfloat', 'default': '0.0f'},
],
},
'ClearDepthf': {
'type': 'Normal',
'func': 'ClearDepth',
'enum': 'GL_DEPTH_CLEAR_VALUE',
'states': [
{'name': 'depth_clear', 'type': 'GLclampf', 'default': '1.0f'},
],
},
'ColorMask': {
'type': 'Normal',
'func': 'ColorMask',
'enum': 'GL_COLOR_WRITEMASK',
'states': [
{
'name': 'color_mask_red',
'type': 'GLboolean',
'default': 'true',
'cached': True
},
{
'name': 'color_mask_green',
'type': 'GLboolean',
'default': 'true',
'cached': True
},
{
'name': 'color_mask_blue',
'type': 'GLboolean',
'default': 'true',
'cached': True
},
{
'name': 'color_mask_alpha',
'type': 'GLboolean',
'default': 'true',
'cached': True
},
],
'on_change': 'framebuffer_state_.clear_state_dirty = true;',
},
'ClearStencil': {
'type': 'Normal',
'func': 'ClearStencil',
'enum': 'GL_STENCIL_CLEAR_VALUE',
'states': [
{'name': 'stencil_clear', 'type': 'GLint', 'default': '0'},
],
},
'CoverageModulationCHROMIUM': {
'type': 'Normal',
'func': 'CoverageModulationNV',
'extension_flag': 'chromium_framebuffer_mixed_samples',
'states': [
{ 'enum': 'GL_COVERAGE_MODULATION_CHROMIUM',
'name': 'coverage_modulation',
'type': 'GLenum',
'default': 'GL_NONE',
},
]
},
'BlendColor': {
'type': 'Normal',
'func': 'BlendColor',
'enum': 'GL_BLEND_COLOR',
'states': [
{'name': 'blend_color_red', 'type': 'GLfloat', 'default': '0.0f'},
{'name': 'blend_color_green', 'type': 'GLfloat', 'default': '0.0f'},
{'name': 'blend_color_blue', 'type': 'GLfloat', 'default': '0.0f'},
{'name': 'blend_color_alpha', 'type': 'GLfloat', 'default': '0.0f'},
],
},
'BlendEquation': {
'type': 'SrcDst',
'func': 'BlendEquationSeparate',
'states': [
{
'name': 'blend_equation_rgb',
'type': 'GLenum',
'enum': 'GL_BLEND_EQUATION_RGB',
'default': 'GL_FUNC_ADD',
},
{
'name': 'blend_equation_alpha',
'type': 'GLenum',
'enum': 'GL_BLEND_EQUATION_ALPHA',
'default': 'GL_FUNC_ADD',
},
],
},
'BlendFunc': {
'type': 'SrcDst',
'func': 'BlendFuncSeparate',
'states': [
{
'name': 'blend_source_rgb',
'type': 'GLenum',
'enum': 'GL_BLEND_SRC_RGB',
'default': 'GL_ONE',
},
{
'name': 'blend_dest_rgb',
'type': 'GLenum',
'enum': 'GL_BLEND_DST_RGB',
'default': 'GL_ZERO',
},
{
'name': 'blend_source_alpha',
'type': 'GLenum',
'enum': 'GL_BLEND_SRC_ALPHA',
'default': 'GL_ONE',
},
{
'name': 'blend_dest_alpha',
'type': 'GLenum',
'enum': 'GL_BLEND_DST_ALPHA',
'default': 'GL_ZERO',
},
],
},
'PolygonOffset': {
'type': 'Normal',
'func': 'PolygonOffset',
'states': [
{
'name': 'polygon_offset_factor',
'type': 'GLfloat',
'enum': 'GL_POLYGON_OFFSET_FACTOR',
'default': '0.0f',
},
{
'name': 'polygon_offset_units',
'type': 'GLfloat',
'enum': 'GL_POLYGON_OFFSET_UNITS',
'default': '0.0f',
},
],
},
'CullFace': {
'type': 'Normal',
'func': 'CullFace',
'enum': 'GL_CULL_FACE_MODE',
'states': [
{
'name': 'cull_mode',
'type': 'GLenum',
'default': 'GL_BACK',
},
],
},
'FrontFace': {
'type': 'Normal',
'func': 'FrontFace',
'enum': 'GL_FRONT_FACE',
'states': [{'name': 'front_face', 'type': 'GLenum', 'default': 'GL_CCW'}],
},
'DepthFunc': {
'type': 'Normal',
'func': 'DepthFunc',
'enum': 'GL_DEPTH_FUNC',
'states': [{'name': 'depth_func', 'type': 'GLenum', 'default': 'GL_LESS'}],
},
'DepthRange': {
'type': 'Normal',
'func': 'DepthRange',
'enum': 'GL_DEPTH_RANGE',
'states': [
{'name': 'z_near', 'type': 'GLclampf', 'default': '0.0f'},
{'name': 'z_far', 'type': 'GLclampf', 'default': '1.0f'},
],
},
'SampleCoverage': {
'type': 'Normal',
'func': 'SampleCoverage',
'states': [
{
'name': 'sample_coverage_value',
'type': 'GLclampf',
'enum': 'GL_SAMPLE_COVERAGE_VALUE',
'default': '1.0f',
},
{
'name': 'sample_coverage_invert',
'type': 'GLboolean',
'enum': 'GL_SAMPLE_COVERAGE_INVERT',
'default': 'false',
},
],
},
'StencilMask': {
'type': 'FrontBack',
'func': 'StencilMaskSeparate',
'states': [
{
'name': 'stencil_front_writemask',
'type': 'GLuint',
'enum': 'GL_STENCIL_WRITEMASK',
'default': '0xFFFFFFFFU',
'cached': True,
},
{
'name': 'stencil_back_writemask',
'type': 'GLuint',
'enum': 'GL_STENCIL_BACK_WRITEMASK',
'default': '0xFFFFFFFFU',
'cached': True,
},
],
'on_change': '''framebuffer_state_.clear_state_dirty = true;
state_.stencil_state_changed_since_validation = true;''',
},
'StencilOp': {
'type': 'FrontBack',
'func': 'StencilOpSeparate',
'states': [
{
'name': 'stencil_front_fail_op',
'type': 'GLenum',
'enum': 'GL_STENCIL_FAIL',
'default': 'GL_KEEP',
},
{
'name': 'stencil_front_z_fail_op',
'type': 'GLenum',
'enum': 'GL_STENCIL_PASS_DEPTH_FAIL',
'default': 'GL_KEEP',
},
{
'name': 'stencil_front_z_pass_op',
'type': 'GLenum',
'enum': 'GL_STENCIL_PASS_DEPTH_PASS',
'default': 'GL_KEEP',
},
{
'name': 'stencil_back_fail_op',
'type': 'GLenum',
'enum': 'GL_STENCIL_BACK_FAIL',
'default': 'GL_KEEP',
},
{
'name': 'stencil_back_z_fail_op',
'type': 'GLenum',
'enum': 'GL_STENCIL_BACK_PASS_DEPTH_FAIL',
'default': 'GL_KEEP',
},
{
'name': 'stencil_back_z_pass_op',
'type': 'GLenum',
'enum': 'GL_STENCIL_BACK_PASS_DEPTH_PASS',
'default': 'GL_KEEP',
},
],
},
'StencilFunc': {
'type': 'FrontBack',
'func': 'StencilFuncSeparate',
'states': [
{
'name': 'stencil_front_func',
'type': 'GLenum',
'enum': 'GL_STENCIL_FUNC',
'default': 'GL_ALWAYS',
},
{
'name': 'stencil_front_ref',
'type': 'GLint',
'enum': 'GL_STENCIL_REF',
'default': '0',
},
{
'name': 'stencil_front_mask',
'type': 'GLuint',
'enum': 'GL_STENCIL_VALUE_MASK',
'default': '0xFFFFFFFFU',
},
{
'name': 'stencil_back_func',
'type': 'GLenum',
'enum': 'GL_STENCIL_BACK_FUNC',
'default': 'GL_ALWAYS',
},
{
'name': 'stencil_back_ref',
'type': 'GLint',
'enum': 'GL_STENCIL_BACK_REF',
'default': '0',
},
{
'name': 'stencil_back_mask',
'type': 'GLuint',
'enum': 'GL_STENCIL_BACK_VALUE_MASK',
'default': '0xFFFFFFFFU',
},
],
'on_change': 'state_.stencil_state_changed_since_validation = true;',
},
'Hint': {
'type': 'NamedParameter',
'func': 'Hint',
'states': [
{
'name': 'hint_generate_mipmap',
'type': 'GLenum',
'enum': 'GL_GENERATE_MIPMAP_HINT',
'default': 'GL_DONT_CARE',
'gl_version_flag': '!is_desktop_core_profile'
},
{
'name': 'hint_fragment_shader_derivative',
'type': 'GLenum',
'enum': 'GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES',
'default': 'GL_DONT_CARE',
'extension_flag': 'oes_standard_derivatives'
},
{
'name': 'hint_texture_filtering',
'type': 'GLenum',
'enum': 'GL_TEXTURE_FILTERING_HINT_CHROMIUM',
'default': 'GL_NICEST',
'extension_flag': 'chromium_texture_filtering_hint'
}
],
},
'PixelStore': {
'type': 'NamedParameter',
'func': 'PixelStorei',
'states': [
{
'name': 'pack_alignment',
'type': 'GLint',
'enum': 'GL_PACK_ALIGNMENT',
'default': '4'
},
{
'name': 'unpack_alignment',
'type': 'GLint',
'enum': 'GL_UNPACK_ALIGNMENT',
'default': '4'
},
{
'name': 'pack_row_length',
'type': 'GLint',
'enum': 'GL_PACK_ROW_LENGTH',
'default': '0',
'es3': True,
'manual': True,
},
{
'name': 'pack_skip_pixels',
'type': 'GLint',
'enum': 'GL_PACK_SKIP_PIXELS',
'default': '0',
'es3': True,
'manual': True,
},
{
'name': 'pack_skip_rows',
'type': 'GLint',
'enum': 'GL_PACK_SKIP_ROWS',
'default': '0',
'es3': True,
'manual': True,
},
{
'name': 'unpack_row_length',
'type': 'GLint',
'enum': 'GL_UNPACK_ROW_LENGTH',
'default': '0',
'es3': True,
'manual': True,
},
{
'name': 'unpack_image_height',
'type': 'GLint',
'enum': 'GL_UNPACK_IMAGE_HEIGHT',
'default': '0',
'es3': True,
'manual': True,
},
{
'name': 'unpack_skip_pixels',
'type': 'GLint',
'enum': 'GL_UNPACK_SKIP_PIXELS',
'default': '0',
'es3': True,
'manual': True,
},
{
'name': 'unpack_skip_rows',
'type': 'GLint',
'enum': 'GL_UNPACK_SKIP_ROWS',
'default': '0',
'es3': True,
'manual': True,
},
{
'name': 'unpack_skip_images',
'type': 'GLint',
'enum': 'GL_UNPACK_SKIP_IMAGES',
'default': '0',
'es3': True,
'manual': True,
}
],
},
# TODO: Consider implemenenting these states
# GL_ACTIVE_TEXTURE
'LineWidth': {
'type': 'Normal',
'custom_function' : True,
'func': 'DoLineWidth',
'enum': 'GL_LINE_WIDTH',
'states': [
{
'name': 'line_width',
'type': 'GLfloat',
'default': '1.0f',
'range_checks': [{'check': "<= 0.0f", 'test_value': "0.0f"}],
'nan_check': True,
}],
},
'DepthMask': {
'type': 'Normal',
'func': 'DepthMask',
'enum': 'GL_DEPTH_WRITEMASK',
'states': [
{
'name': 'depth_mask',
'type': 'GLboolean',
'default': 'true',
'cached': True
},
],
'on_change': 'framebuffer_state_.clear_state_dirty = true;',
},
'Scissor': {
'type': 'Normal',
'func': 'Scissor',
'enum': 'GL_SCISSOR_BOX',
'states': [
# NOTE: These defaults reset at GLES2DecoderImpl::Initialization.
{
'name': 'scissor_x',
'type': 'GLint',
'default': '0',
},
{
'name': 'scissor_y',
'type': 'GLint',
'default': '0',
},
{
'name': 'scissor_width',
'type': 'GLsizei',
'default': '1',
'expected': 'initial_size.width()',
},
{
'name': 'scissor_height',
'type': 'GLsizei',
'default': '1',
'expected': 'initial_size.height()',
},
],
},
'Viewport': {
'type': 'Normal',
'func': 'Viewport',
'enum': 'GL_VIEWPORT',
'states': [
# NOTE: These defaults reset at GLES2DecoderImpl::Initialization.
{
'name': 'viewport_x',
'type': 'GLint',
'default': '0',
},
{
'name': 'viewport_y',
'type': 'GLint',
'default': '0',
},
{
'name': 'viewport_width',
'type': 'GLsizei',
'default': '1',
'expected': 'initial_size.width()',
},
{
'name': 'viewport_height',
'type': 'GLsizei',
'default': '1',
'expected': 'initial_size.height()',
},
],
},
'WindowRectanglesEXT': {
'type': 'Normal',
'func': 'WindowRectanglesEXT',
'custom_function': True,
'extension_flag': 'ext_window_rectangles',
'no_init': True,
'states': [
{
'name': 'window_rectangles_mode',
'type': 'GLenum',
'enum': 'GL_WINDOW_RECTANGLE_MODE_EXT',
'default': 'GL_EXCLUSIVE_EXT',
},
{
'name': 'num_window_rectangles',
'type': 'GLint',
'enum': 'GL_NUM_WINDOW_RECTANGLES_EXT',
'default': '0',
},
],
},
}
_prefix = None
_upper_prefix = None
_lower_prefix = None
def InitializePrefix(mixed_case_prefix):
"""Initialize prefix used for autogenerated code.
Must be called before autogenerating code. Prefixes are used by autogenerated
code in many places: class names, filenames, namespaces, constants,
defines. Given a single mixed case prefix suitable for a class name, we also
initialize lower and upper case prefixes for other uses (e.g. filenames and
#defines).
"""
global _prefix
if _prefix:
raise AssertionError
_prefix = mixed_case_prefix
global _upper_prefix
_upper_prefix = mixed_case_prefix.upper()
global _lower_prefix
_lower_prefix = mixed_case_prefix.lower()
def _Namespace():
if _lower_prefix != 'gles2':
return 'gles2::'
return ''
def Grouper(n, iterable, fillvalue=None):
"""Collect data into fixed-length chunks or blocks"""
args = [iter(iterable)] * n
return itertools.zip_longest(fillvalue=fillvalue, *args)
def SplitWords(input_string):
"""Split by '_' if found, otherwise split at uppercase/numeric chars.
Will split "some_TEXT" into ["some", "TEXT"], "CamelCase" into ["Camel",
"Case"], and "Vector3" into ["Vector", "3"].
"""
if input_string.find('_') > -1:
# 'some_TEXT_' -> 'some TEXT'
return input_string.replace('_', ' ').strip().split()
input_string = input_string.replace('::', ' ')
if re.search('[A-Z]', input_string) and re.search('[a-z]', input_string):
# mixed case.
# look for capitalization to cut input_strings
# 'SomeText' -> 'Some Text'
input_string = re.sub('([A-Z])', r' \1', input_string).strip()
# 'Vector3' -> 'Vector 3'
input_string = re.sub('([^0-9])([0-9])', r'\1 \2', input_string)
return input_string.split()
def ToUnderscore(input_string):
"""converts CamelCase to camel_case."""
words = SplitWords(input_string)
return '_'.join([word.lower() for word in words])
def ValidatorClassName(type_name):
"""Converts some::namespace::TypeName to SomeNamespaceTypeNameValidator."""
words = SplitWords(type_name)
prefix = ''.join([word.title() for word in words])
return '%sValidator' % prefix
def CachedStateName(item):
if item.get('cached', False):
return 'cached_' + item['name']
return item['name']
def GuardState(state, operation, feature_info):
if 'manual' in state:
assert state['manual']
return ""
result = []
result_end = []
if 'es3' in state:
assert state['es3']
result.append(" if (%s->IsES3Capable()) {\n" % feature_info);
result_end.append(" }\n")
if 'extension_flag' in state:
result.append(" if (%s->feature_flags().%s) {\n " %
(feature_info, state['extension_flag']))
result_end.append(" }\n")
if 'gl_version_flag' in state:
name = state['gl_version_flag']
inverted = ''
if name[0] == '!':
inverted = '!'
name = name[1:]
result.append(" if (%s%s->gl_version_info().%s) {\n" %
(inverted, feature_info, name))
result_end.append(" }\n")
result.append(operation)
return ''.join(result + result_end)
def ToGLExtensionString(extension_flag):
"""Returns GL-type extension string of a extension flag."""
if extension_flag == "oes_compressed_etc1_rgb8_texture":
return "OES_compressed_ETC1_RGB8_texture" # Fixup inconsitency with rgb8,
# unfortunate.
uppercase_words = [ 'img', 'ext', 'arb', 'chromium', 'oes', 'amd', 'bgra8888',
'egl', 'atc', 'etc1', 'angle']
parts = extension_flag.split('_')
return "_".join(
[part.upper() if part in uppercase_words else part for part in parts])
def ToCamelCase(input_string):
"""converts ABC_underscore_case to ABCUnderscoreCase."""
return ''.join(w[0].upper() + w[1:] for w in input_string.split('_'))
def EnumsConflict(a, b):
"""Returns true if the enums have different names (ignoring suffixes) and one
of them is a Chromium enum."""
if a == b:
return False
if b.endswith('_CHROMIUM'):
a, b = b, a
if not a.endswith('_CHROMIUM'):
return False
def removesuffix(string, suffix):
if not string.endswith(suffix):
return string
return string[:-len(suffix)]
b = removesuffix(b, "_NV")
b = removesuffix(b, "_EXT")
b = removesuffix(b, "_OES")
return removesuffix(a, "_CHROMIUM") != b
def GetGLGetTypeConversion(result_type, value_type, value):
"""Makes a gl compatible type conversion string for accessing state variables.
Useful when accessing state variables through glGetXXX calls.
glGet documetation (for example, the manual pages):
[...] If glGetIntegerv is called, [...] most floating-point values are
rounded to the nearest integer value. [...]
Args:
result_type: the gl type to be obtained
value_type: the GL type of the state variable
value: the name of the state variable
Returns:
String that converts the state variable to desired GL type according to GL
rules.
"""
if result_type == 'GLint':
if value_type == 'GLfloat':
return 'static_cast<GLint>(round(%s))' % value
return 'static_cast<%s>(%s)' % (result_type, value)
class CWriter():
"""Context manager that creates a C source file.
To be used with the `with` statement. Returns a normal `file` type, open only
for writing - any existing files with that name will be overwritten. It will
automatically write the contents of `_LICENSE` and `_DO_NOT_EDIT_WARNING`
at the beginning.
Example:
with CWriter("file.cpp") as myfile:
myfile.write("hello")
# type(myfile) == file
"""
def __init__(self, filename, year):
self.filename = filename
self._ENTER_MSG = _LICENSE % year + _DO_NOT_EDIT_WARNING % _lower_prefix
self._EXIT_MSG = ""
try:
os.makedirs(os.path.dirname(filename))
except OSError as e:
if e.errno == errno.EEXIST:
pass
self._file = open(filename, 'w', newline='')
def __enter__(self):
self._file.write(self._ENTER_MSG)
return self._file
def __exit__(self, exc_type, exc_value, traceback):
self._file.write(self._EXIT_MSG)
self._file.close()
class CHeaderWriter(CWriter):
"""Context manager that creates a C header file.
Works the same way as CWriter, except it will also add the #ifdef guard
around it. If `file_comment` is set, it will write that before the #ifdef
guard.
"""
def __init__(self, filename, year, file_comment=None):
super().__init__(filename, year)
guard = self._get_guard()
if file_comment is None:
file_comment = ""
self._ENTER_MSG = self._ENTER_MSG + file_comment \
+ "#ifndef %s\n#define %s\n\n" % (guard, guard)
self._EXIT_MSG = self._EXIT_MSG + "#endif // %s\n" % guard
def _get_guard(self):
non_alnum_re = re.compile(r'[^a-zA-Z0-9]')
assert self.filename.startswith("gpu/")
return non_alnum_re.sub('_', self.filename).upper() + '_'
class TypeHandler():
"""This class emits code for a particular type of function."""
_remove_expected_call_re = re.compile(r' EXPECT_CALL.*?;\n', re.S)
def InitFunction(self, func):
"""Add or adjust anything type specific for this function."""
if func.GetInfo('needs_size') and not func.name.endswith('Bucket'):
func.AddCmdArg(DataSizeArgument('data_size'))
def NeedsDataTransferFunction(self, func):
"""Overriden from TypeHandler."""
return func.num_pointer_args >= 1
def WriteStruct(self, func, f):
"""Writes a structure that matches the arguments to a function."""
comment = func.GetInfo('cmd_comment')
if not comment == None:
f.write(comment)
f.write("struct %s {\n" % func.name)
f.write(" typedef %s ValueType;\n" % func.name)
f.write(" static const CommandId kCmdId = k%s;\n" % func.name)
func.WriteCmdArgFlag(f)
func.WriteCmdFlag(f)
f.write("\n")
result = func.GetInfo('result')
if not result == None:
if len(result) == 1:
f.write(" typedef %s Result;\n\n" % result[0])
else:
f.write(" struct Result {\n")
for line in result:
f.write(" %s;\n" % line)
f.write(" };\n\n")
func.WriteCmdComputeSize(f)
func.WriteCmdSetHeader(f)
func.WriteCmdInit(f)
func.WriteCmdSet(f)
func.WriteArgAccessors(f)
f.write(" gpu::CommandHeader header;\n")
total_args = 0
args = func.GetCmdArgs()
for arg in args:
for cmd_type, name in arg.GetArgDecls():
f.write(" %s %s;\n" % (cmd_type, name))
total_args += 1
trace_queue = func.GetInfo('trace_queueing_flow', False)
if trace_queue:
f.write(" uint32_t trace_id;\n")
total_args += 1
consts = func.GetCmdConstants()
for const in consts:
const_decls = const.GetArgDecls()
assert(len(const_decls) == 1)
const_cmd_type, const_name = const_decls[0]
f.write(" static const %s %s = %s;\n" %
(const_cmd_type, const_name, const.GetConstantValue()))
f.write("};\n")
f.write("\n")
size = total_args * _SIZE_OF_UINT32 + _SIZE_OF_COMMAND_HEADER
f.write("static_assert(sizeof(%s) == %d,\n" % (func.name, size))
f.write(" \"size of %s should be %d\");\n" %
(func.name, size))
f.write("static_assert(offsetof(%s, header) == 0,\n" % func.name)
f.write(" \"offset of %s header should be 0\");\n" %
func.name)
offset = _SIZE_OF_COMMAND_HEADER
for arg in args:
for _, name in arg.GetArgDecls():
f.write("static_assert(offsetof(%s, %s) == %d,\n" %
(func.name, name, offset))
f.write(" \"offset of %s %s should be %d\");\n" %
(func.name, name, offset))
offset += _SIZE_OF_UINT32
if not result == None and len(result) > 1:
offset = 0;
for line in result:
parts = line.split()
name = parts[-1]
check = """
static_assert(offsetof(%(cmd_name)s::Result, %(field_name)s) == %(offset)d,
"offset of %(cmd_name)s Result %(field_name)s should be "
"%(offset)d");
"""
f.write((check.strip() + "\n") % {
'cmd_name': func.name,
'field_name': name,
'offset': offset,
})
offset += _SIZE_OF_UINT32
f.write("\n")
def WriteHandlerImplementation(self, func, f):
"""Writes the handler implementation for this command."""
args = []
for arg in func.GetOriginalArgs():
if arg.name.endswith("size") and arg.type == "GLsizei":
args.append("num_%s" % func.GetLastOriginalArg().name)
elif arg.name == "length":
args.append("nullptr")
else:
args.append(arg.name)
if func.GetInfo('type') == 'GETn' and func.name != 'GetSynciv':
args.append('num_values')
f.write(" %s(%s);\n" %
(func.GetGLFunctionName(), ", ".join(args)))
def WriteCmdSizeTest(self, _func, f):
"""Writes the size test for a command."""
f.write(" EXPECT_EQ(sizeof(cmd), cmd.header.size * 4u);\n")
def WriteFormatTest(self, func, f):
"""Writes a format test for a command."""
f.write("TEST_F(%sFormatTest, %s) {\n" % (_prefix, func.name))
f.write(" cmds::%s& cmd = *GetBufferAs<cmds::%s>();\n" %
(func.name, func.name))
f.write(" void* next_cmd = cmd.Set(\n")
f.write(" &cmd")
args = func.GetCmdArgs()
for value, arg in enumerate(args):
f.write(",\n static_cast<%s>(%d)" % (arg.type, value + 11))
f.write(");\n")
f.write(" EXPECT_EQ(static_cast<uint32_t>(cmds::%s::kCmdId),\n" %
func.name)
f.write(" cmd.header.command);\n")
func.type_handler.WriteCmdSizeTest(func, f)
for value, arg in enumerate(args):