Add TransformFeedback related APIs to command buffer: PART I.

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 692 matching lines @@
     'type': 'GLenum',
     'valid': [
       'GL_TEXTURE_2D',
       'GL_TEXTURE_CUBE_MAP',
     ],
     'invalid': [
       'GL_TEXTURE_1D',
       'GL_TEXTURE_3D',
     ],
   },
+  'TransformFeedbackBindTarget': {
+    'type': 'GLenum',
+    'valid': [
+      'GL_TRANSFORM_FEEDBACK',
+    ],
+    'invalid': [
+      'GL_TEXTURE_2D',
+    ],
+  },
+  'TransformFeedbackPrimitiveMode': {
+    'type': 'GLenum',
+    'valid': [
+      'GL_POINTS',
+      'GL_LINES',
+      'GL_TRIANGLES',
+    ],
+    'invalid': [
+      'GL_LINE_LOOP',
+    ],
+  },
   'ShaderType': {
     'type': 'GLenum',
     'valid': [
       'GL_VERTEX_SHADER',
       'GL_FRAGMENT_SHADER',
     ],
     'invalid': [
       'GL_GEOMETRY_SHADER',
     ],
   },
@@ skipping 620 matching lines @@
 #               taking cmd_args override into consideration.
 # impl_func:    Whether or not to generate the GLES2Implementation part of this
 #               command.
 # impl_decl:    Whether or not to generate the GLES2Implementation declaration
 #               for this command.
 # needs_size:   If True a data_size field is added to the command.
 # count:        The number of units per element. For PUTn or PUT types.
 # unit_test:    If False no service side unit test will be generated.
 # client_test:  If False no client side unit test will be generated.
 # expectation:  If False the unit test will have no expected calls.
-# match_all:    If True the unit test's EXPECT_GL will use _ for any args.
 # gen_func:     Name of function that generates GL resource for corresponding
 #               bind function.
 # states:       array of states that get set by this function corresponding to
 #               the given arguments
 # state_flag:   name of flag that is set to true when function is called.
 # no_gl:        no GL function is called.
 # valid_args:   A dictionary of argument indices to args to use in unit tests
 #               when they can not be automatically determined.
 # pepper_interface: The pepper interface that is used for this extension
 # pepper_name:  The name of the function as exposed to pepper.
@@ skipping 54 matching lines @@
     'unsafe': True,
   },
   'BindTexture': {
     'type': 'Bind',
     'decoder_func': 'DoBindTexture',
     'gen_func': 'GenTextures',
     # TODO(gman): remove this once client side caching works.
     'client_test': False,
     'trace_level': 1,
   },
+  'BindTransformFeedback': {
+    'type': 'Bind',
+    'id_mapping': [ 'TransformFeedback' ],
+    'unsafe': True,
+  },
   'BlitFramebufferCHROMIUM': {
     'decoder_func': 'DoBlitFramebufferCHROMIUM',
     'unit_test': False,
     'extension_flag': 'chromium_framebuffer_multisample',
     'pepper_interface': 'FramebufferBlit',
     'pepper_name': 'BlitFramebufferEXT',
     'defer_reads': True,
     'defer_draws': True,
     'trace_level': 1,
   },
@@ skipping 283 matching lines @@
     'resource_type': 'Sampler',
     'resource_types': 'Samplers',
     'unsafe': True,
   },
   'DeleteShader': {'type': 'Delete', 'decoder_func': 'DoDeleteShader'},
   'DeleteTextures': {
     'type': 'DELn',
     'resource_type': 'Texture',
     'resource_types': 'Textures',
   },
+  'DeleteTransformFeedbacks': {
+    'type': 'DELn',
+    'resource_type': 'TransformFeedback',
+    'resource_types': 'TransformFeedbacks',
+    'unsafe': True,
+  },
   'DepthRangef': {
     'decoder_func': 'DoDepthRangef',
     'gl_test_func': 'glDepthRange',
   },
   'DepthMask': {
     'type': 'StateSet',
     'state': 'DepthMask',
     'no_gl': True,
     'expectation': False,
   },
@@ skipping 94 matching lines @@
     'resource_type': 'Sampler',
     'resource_types': 'Samplers',
     'unsafe': True,
   },
   'GenTextures': {
     'type': 'GENn',
     'gl_test_func': 'glGenTextures',
     'resource_type': 'Texture',
     'resource_types': 'Textures',
   },
+  'GenTransformFeedbacks': {
+    'type': 'GENn',
+    'gl_test_func': 'glGenTransformFeedbacks',
+    'resource_type': 'TransformFeedback',
+    'resource_types': 'TransformFeedbacks',
+    'unsafe': True,
+  },
   'GetActiveAttrib': {
     'type': 'Custom',
     'data_transfer_methods': ['shm'],
     'cmd_args':
         'GLidProgram program, GLuint index, uint32_t name_bucket_id, '
         'void* result',
     'result': [
       'int32_t success',
       'int32_t size',
       'uint32_t type',
@@ skipping 253 matching lines @@
     'decoder_func': 'DoIsRenderbuffer',
     'expectation': False,
   },
   'IsShader': {
     'type': 'Is',
     'decoder_func': 'DoIsShader',
     'expectation': False,
   },
   'IsSampler': {
     'type': 'Is',
-    'match_all': True,
+    'id_mapping': [ 'Sampler' ],
     'unsafe': True,
   },
   'IsTexture': {
     'type': 'Is',
     'decoder_func': 'DoIsTexture',
     'expectation': False,
   },
+  'IsTransformFeedback': {
+    'type': 'Is',
+    'id_mapping': [ 'TransformFeedback' ],
+    'unsafe': True,
+  },
   'LinkProgram': {
     'decoder_func': 'DoLinkProgram',
     'impl_func':  False,
   },
   'MapBufferCHROMIUM': {
     'gen_cmd': False,
     'extension': True,
     'chromium': True,
     'client_test': False,
   },
   'MapBufferSubDataCHROMIUM': {
     'gen_cmd': False,
     'extension': True,
     'chromium': True,
     'client_test': False,
     'pepper_interface': 'ChromiumMapSub',
   },
   'MapTexSubImage2DCHROMIUM': {
     'gen_cmd': False,
     'extension': True,
     'chromium': True,
     'client_test': False,
     'pepper_interface': 'ChromiumMapSub',
   },
+  'PauseTransformFeedback': {
+    'unsafe': True,
+  },
   'PixelStorei': {'type': 'Manual'},
   'PostSubBufferCHROMIUM': {
       'type': 'Custom',
       'impl_func': False,
       'unit_test': False,
       'client_test': False,
       'extension': True,
       'chromium': True,
   },
   'ProduceTextureCHROMIUM': {
@@ skipping 61 matching lines @@
         'uint32_t pixels_shm_id, uint32_t pixels_shm_offset, '
         'uint32_t result_shm_id, uint32_t result_shm_offset, '
         'GLboolean async',
     'result': ['uint32_t'],
     'defer_reads': True,
   },
   'ReleaseShaderCompiler': {
     'decoder_func': 'DoReleaseShaderCompiler',
     'unit_test': False,
   },
+  'ResumeTransformFeedback': {
+    'unsafe': True,
+  },
   'SamplerParameterf': {
     'valid_args': {
       '2': 'GL_NEAREST'
     },
     'id_mapping': [ 'Sampler' ],
     'unsafe': True,
   },
   'SamplerParameterfv': {
     'type': 'PUT',
     'data_value': 'GL_NEAREST',
@@ skipping 440 matching lines @@
     'client_test': False,
     'pepper_interface': 'Query',
   },
   'BeginQueryEXT': {
     'type': 'Manual',
     'cmd_args': 'GLenumQueryTarget target, GLidQuery id, void* sync_data',
     'data_transfer_methods': ['shm'],
     'gl_test_func': 'glBeginQuery',
     'pepper_interface': 'Query',
   },
+  'BeginTransformFeedback': {
+    'unsafe': True,
+  },
   'EndQueryEXT': {
     'type': 'Manual',
     'cmd_args': 'GLenumQueryTarget target, GLuint submit_count',
     'gl_test_func': 'glEndnQuery',
     'client_test': False,
     'pepper_interface': 'Query',
   },
+  'EndTransformFeedback': {
+    'unsafe': True,
+  },
   'GetQueryivEXT': {
     'gen_cmd': False,
     'client_test': False,
     'gl_test_func': 'glGetQueryiv',
     'pepper_interface': 'Query',
   },
   'GetQueryObjectuivEXT': {
     'gen_cmd': False,
     'client_test': False,
     'gl_test_func': 'glGetQueryObjectuiv',
@@ skipping 595 matching lines @@
   def WriteValidUnitTest(self, func, file, test, *extras):
     """Writes a valid unit test for the service implementation."""
     if func.GetInfo('expectation') == False:
       test = self._remove_expected_call_re.sub('', test)
     name = func.name
     arg_strings = [
       arg.GetValidArg(func) \
       for arg in func.GetOriginalArgs() if not arg.IsConstant()
     ]
     gl_arg_strings = [
-      "_" if func.MatchAll() else arg.GetValidGLArg(func) \
+      arg.GetValidGLArg(func) \
       for arg in func.GetOriginalArgs()
     ]
     gl_func_name = func.GetGLTestFunctionName()
     vars = {
       'name':name,
       'gl_func_name': gl_func_name,
       'args': ", ".join(arg_strings),
       'gl_args': ", ".join(gl_arg_strings),
     }
     for extra in extras:
       vars.update(extra)
     old_test = ""
     while (old_test != test):
       old_test = test
       test = test % vars
     file.Write(test % vars)
 
   def WriteInvalidUnitTest(self, func, file, test, *extras):
     """Writes an invalid unit test for the service implementation."""
+    if func.IsUnsafe():
+      return
     for invalid_arg_index, invalid_arg in enumerate(func.GetOriginalArgs()):
       # Service implementation does not test constants, as they are not part of
       # the call in the service side.
       if invalid_arg.IsConstant():
         continue
 
       num_invalid_values = invalid_arg.GetNumInvalidValues(func)
       for value_index in range(0, num_invalid_values):
         arg_strings = []
         parse_result = "kNoError"
@@ skipping 2986 matching lines @@
 
     code = """  typedef cmds::%(func_name)s::Result Result;
   Result* result_dst = GetSharedMemoryAs<Result*>(
       c.result_shm_id, c.result_shm_offset, sizeof(*result_dst));
   if (!result_dst) {
     return error::kOutOfBounds;
   }
 """
     file.Write(code % {'func_name': func.name})
     func.WriteHandlerValidation(file)
+    if func.IsUnsafe() and func.GetInfo('id_mapping'):
+      for id_type in func.GetInfo('id_mapping'):
+        file.Write("  group_->Get%sServiceId(%s, &%s);\n" %
+                   (id_type, id_type.lower(), id_type.lower()))
     file.Write("  *result_dst = %s(%s);\n" %
                (func.GetGLFunctionName(), func.MakeOriginalArgString("")))
     file.Write("  return error::kNoError;\n")
     file.Write("}\n")
     file.Write("\n")
 
   def WriteGLES2Implementation(self, func, file):
     """Overrriden from TypeHandler."""
     impl_func = func.GetInfo('impl_func')
     if impl_func == None or impl_func == True:
@@ skipping 962 matching lines @@
     self.type_handler.InitFunction(self)
 
   def IsImmediate(self):
     """Returns whether the function is immediate data function or not."""
     return False
 
   def IsUnsafe(self):
     """Returns whether the function has service side validation or not."""
     return self.GetInfo('unsafe', False)
 
-  def MatchAll(self):
-    """ Returns whether an EXPECT_GL arg matches any input value."""
-    return self.GetInfo('match_all', False)
-
   def GetInfo(self, name, default = None):
     """Returns a value from the function info for this function."""
     if name in self.info:
       return self.info[name]
     return default
 
   def GetValidArg(self, arg):
     """Gets a valid argument value for the parameter arg from the function info
     if one exists."""
     try:
@@ skipping 1842 matching lines @@
   Format(gen.generated_cpp_filenames)
 
   if gen.errors > 0:
     print "%d errors" % gen.errors
     return 1
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))