command_buffer: Implement path rendering functions for CHROMIUM_path_rendering

gpu/command_buffer/build_gles2_cmd_buffer.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """code generator for GLES2 command buffers."""
 
 import itertools
 import os
 import os.path
@@ skipping 491 matching lines @@
         'default': [
           '1.0f', '0.0f','0.0f','0.0f',
           '0.0f', '1.0f','0.0f','0.0f',
           '0.0f', '0.0f','1.0f','0.0f',
           '0.0f', '0.0f','0.0f','1.0f',
         ],
         'extension_flag': 'chromium_path_rendering',
       },
     ],
   },
+  'PathStencilFuncCHROMIUM': {
+    'type': 'Normal',
+    'func': 'PathStencilFuncNV',
+    'extension_flag': 'chromium_path_rendering',
+    'states': [
+      {
+        'name': 'stencil_path_func',
+        'type': 'GLenum',
+        'enum': 'GL_PATH_STENCIL_FUNC_CHROMIUM',
+        'default': 'GL_ALWAYS',
+       },
+      {
+        'name': 'stencil_path_ref',
+        'type': 'GLint',
+        'enum': 'GL_PATH_STENCIL_REF_CHROMIUM',
+        'default': '0',
+       },
+      {
+        'name': 'stencil_path_mask',
+        'type': 'GLuint',
+        'enum': 'GL_PATH_STENCIL_VALUE_MASK_CHROMIUM',
+        'default': '0xFFFFFFFFU',
+      },
+    ],
+  },
 }
 
 # This is a list of enum names and their valid values. It is used to map
 # GLenum arguments to a specific set of valid values.
 _ENUM_LISTS = {
   'BlitFilter': {
     'type': 'GLenum',
     'valid': [
       'GL_NEAREST',
       'GL_LINEAR',
@@ skipping 536 matching lines @@
       'GL_UNSIGNED_BYTE',
       'GL_UNSIGNED_SHORT_5_6_5',
       'GL_UNSIGNED_SHORT_4_4_4_4',
       'GL_UNSIGNED_SHORT_5_5_5_1',
     ],
     'invalid': [
       'GL_SHORT',
       'GL_INT',
     ],
   },
+  'PathCoordType': {
+    'type': 'GLenum',
+    'valid': [
+      'GL_FLOAT',
+    ],
+  },
+  'PathCoverMode': {
+  'type': 'GLenum',
+    'valid': [
+      'GL_BOUNDING_BOX_CHROMIUM',
+    ],
+  },
+  'PathCoverModeInstanced': {
+    'type': 'GLenum',
+    'valid': [
+      'GL_BOUNDING_BOX_OF_BOUNDING_BOXES_CHROMIUM',
+    ],
+  },
+  'PathFillMode': {
+    'type': 'GLenum',
+    'valid': [
+      'GL_INVERT',
+      'GL_COUNT_UP_CHROMIUM',
+      'GL_COUNT_DOWN_CHROMIUM',
+    ],
+  },
+  'PathGenMode': {
+    'type': 'GLenum',
+    'valid': [
+      'GL_OBJECT_LINEAR_CHROMIUM',
+      'GL_EYE_LINEAR_CHROMIUM',
+    ],
+  },
+  'PathNameType': {
+    'type': 'GLenum',
+    'valid': [
+      'GL_UNSIGNED_INT'
+    ],
+  },
+  'PathParameter': {
+    'type': 'GLenum',
+    'valid': [
+      'GL_PATH_STROKE_WIDTH_CHROMIUM',
+      'GL_PATH_INITIAL_END_CAP_CHROMIUM',
+      'GL_PATH_TERMINAL_END_CAP_CHROMIUM',
+      'GL_PATH_JOIN_STYLE_CHROMIUM',
+      'GL_PATH_MITER_LIMIT_CHROMIUM',
+    ]
+  },
+  'PathTransformType': {
+    'type': 'GLenum',
+    'valid': [
+      'GL_NONE',
+      'GL_TRANSLATE_X_CHROMIUM',
+      'GL_TRANSLATE_Y_CHROMIUM',
+      'GL_TRANSLATE_2D_CHROMIUM',
+      'GL_TRANSLATE_3D_CHROMIUM',
+      'GL_AFFINE_2D_CHROMIUM',
+      'GL_AFFINE_3D_CHROMIUM',
+      'GL_TRANSPOSE_AFFINE_2D_CHROMIUM',
+      'GL_TRANSPOSE_AFFINE_3D_CHROMIUM',
+    ],
+  },
   'ReadPixelType': {
     'type': 'GLenum',
     'valid': [
       'GL_UNSIGNED_BYTE',
       'GL_UNSIGNED_SHORT_5_6_5',
       'GL_UNSIGNED_SHORT_4_4_4_4',
       'GL_UNSIGNED_SHORT_5_5_5_1',
     ],
     'invalid': [
       'GL_SHORT',
@@ skipping 1514 matching lines @@
     'unit_test': False,
     'chromium': True,
     'extension': True,
   },
   'MatrixLoadIdentityCHROMIUM': {
     'decoder_func': 'DoMatrixLoadIdentityCHROMIUM',
     'unit_test': False,
     'chromium': True,
     'extension': True,
   },
+  'GenPathsCHROMIUM': {
+    'type': 'Custom',
+    'cmd_args':
+      'GLsizei range, GLuint* client_ids',
+    'immediate': False, # FIXME: cannot create immediate command

[piman, 2014/04/24 22:26:36]

nit: in chromium code, we use TODO rather than FIXME.

+                        # because it will use original args instead of
+                        # cmd_args
+    'unit_test': False, # FIXME: see above
+    'chromium': True,
+    'extension': True,
+  },
+  'DeletePathsCHROMIUM': {
+    'decoder_func': 'DeletePathsCHROMIUMHelper',
+    'unit_test': False, # FIXME: see above
+    'chromium': True,
+    'extension': True,
+  },
+  'PathCommandsCHROMIUM': {
+    'type': 'Manual',
+    'immediate': False,
+    'chromium': True,
+    'extension': True,
+  },
+  'PathParameterfCHROMIUM': {
+    'type': 'Custom',
+    'chromium': True,
+    'extension': True,
+  },
+  'PathParameteriCHROMIUM': {
+    'type': 'Custom',
+    'chromium': True,
+    'extension': True,
+  },
+  'PathStencilFuncCHROMIUM': {
+    'type': 'StateSet',
+    'state': 'PathStencilFuncCHROMIUM',
+    'decoder_func': 'glPathStencilFuncNV',
+    'chromium': True,
+    'extension': True,
+  },
+  'StencilFillPathCHROMIUM': {
+    'type': 'Custom',
+    'chromium': True,
+    'extension': True,
+  },
+  'StencilFillPathInstancedCHROMIUM': {
+    'type': 'Custom',
+    'chromium': True,
+    'extension': True,
+  },
+  'StencilStrokePathCHROMIUM': {
+    'type': 'Custom',
+    'chromium': True,
+    'extension': True,
+  },
+  'StencilStrokePathInstancedCHROMIUM': {
+    'type': 'Custom',
+    'chromium': True,
+    'extension': True,
+  },
+  'PathTexGenCHROMIUM': {
+    'type': 'Manual',
+    'immediate': False,
+    'chromium': True,
+    'extension': True,
+  },
+  'CoverFillPathCHROMIUM': {
+    'type': 'Custom',
+    'chromium': True,
+    'extension': True,
+  },
+  'CoverFillPathInstancedCHROMIUM': {
+    'type': 'Custom',
+    'chromium': True,
+    'extension': True,
+  },
+  'CoverStrokePathCHROMIUM': {
+    'type': 'Custom',
+    'chromium': True,
+    'extension': True,
+  },
+  'CoverStrokePathInstancedCHROMIUM': {
+    'type': 'Custom',
+    'chromium': True,
+    'extension': True,
+  },
 }
 
 def Grouper(n, iterable, fillvalue=None):
   """Collect data into fixed-length chunks or blocks"""
   args = [iter(iterable)] * n
   return itertools.izip_longest(fillvalue=fillvalue, *args)
 
 
 def SplitWords(input_string):
   """Transforms a input_string into a list of lower-case components.
@@ skipping 5457 matching lines @@
       "ppapi/shared_impl/ppb_opengles2_shared.cc"])
 
   if gen.errors > 0:
     print "%d errors" % gen.errors
     return 1
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))