[Piglit] [PATCH 1/8] glsl-4.00/ARB_texture_query_lod: Generate compiler tests for built-in functions

[Matt Turner]

For each sampler data type, generate a test for
	(vertex, fragment) shader;
	(glsl-4.00, glsl-1.30 + ARB_texture_query_lod).

The vertex shader tests confirm that textureQueryLod is not available in
the the vertex shader.
---
 generated_tests/CMakeLists.txt                 |    4 +
 generated_tests/gen_texture_query_lod_tests.py |  149 ++++++++++++++++++++++++
 2 files changed, 153 insertions(+), 0 deletions(-)
 create mode 100755 generated_tests/gen_texture_query_lod_tests.py

diff --git a/generated_tests/CMakeLists.txt b/generated_tests/CMakeLists.txt
index 694a213..2b3293c 100644
--- a/generated_tests/CMakeLists.txt
+++ b/generated_tests/CMakeLists.txt
@@ -37,6 +37,9 @@ piglit_make_generated_tests(
 	non-lvalue_tests.list
 	gen_non-lvalue_tests.py)
 piglit_make_generated_tests(
+	texture_query_lod_tests.list
+	gen_texture_query_lod_tests.py)
+piglit_make_generated_tests(
 	uniform-initializer_tests.list
 	gen_uniform_initializer_tests.py
 	uniform-initializer-templates/fs-initializer.template
@@ -57,4 +60,5 @@ add_custom_target(gen-tests ALL
 		constant_array_size_tests.list
 		interpolation_tests.list
 		non-lvalue_tests.list
+		texture_query_lod_tests.list
 		uniform-initializer_tests.list)
diff --git a/generated_tests/gen_texture_query_lod_tests.py b/generated_tests/gen_texture_query_lod_tests.py
new file mode 100755
index 0000000..1e1aad0
--- /dev/null
+++ b/generated_tests/gen_texture_query_lod_tests.py
@@ -0,0 +1,149 @@
+#!/usr/bin/env python2
+# coding=utf-8
+#
+# Copyright © 2013 Intel Corporation
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice (including the next
+# paragraph) shall be included in all copies or substantial portions of the
+# Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+
+import os
+import os.path
+from mako.template import Template
+from textwrap import dedent
+
+sampler_type_to_coord_type = {
+	'sampler1D':              'float',
+	'isampler1D':             'float',
+	'usampler1D':             'float',
+
+	'sampler2D':              'vec2',
+	'isampler2D':             'vec2',
+	'usampler2D':             'vec2',
+
+	'sampler3D':              'vec3',
+	'isampler3D':             'vec3',
+	'usampler3D':             'vec3',
+
+	'samplerCube':            'vec3',
+	'isamplerCube':           'vec3',
+	'usamplerCube':           'vec3',
+
+	'sampler1DArray':         'float',
+	'isampler1DArray':        'float',
+	'usampler1DArray':        'float',
+
+	'sampler2DArray':         'vec2',
+	'isampler2DArray':        'vec2',
+	'usampler2DArray':        'vec2',
+
+	'samplerCubeArray':       'vec3',
+	'isamplerCubeArray':      'vec3',
+	'usamplerCubeArray':      'vec3',
+
+	'sampler1DShadow':        'float',
+	'sampler2DShadow':        'vec2',
+	'samplerCubeShadow':      'vec3',
+	'sampler1DArrayShadow':   'float',
+	'sampler2DArrayShadow':   'vec2',
+	'samplerCubeArrayShadow': 'vec3',
+}
+
+requirements = {
+	'ARB_texture_query_lod': {
+		'version': '1.30',
+		'extension': 'GL_ARB_texture_query_lod'
+	},
+	'glsl-4.00': {
+		'version': '4.00',
+		'extension': ''
+	}
+}
+
+template = Template(dedent("""\
+	/* [config]
+	% if execution_stage == 'fs':
+	 * expect_result: pass
+	% else:
+	 * expect_result: fail
+	% endif
+	 * glsl_version: ${version}
+	% if extensions:
+	 * required_extensions: ${" ".join(extensions)}
+	% endif
+	 * [end config]
+	 */
+
+	#version ${version.translate(None, '.')}
+	% for extension in extensions:
+	#extension ${extension} : enable
+	% endfor
+
+	uniform ${sampler_type} s;
+	% if execution_stage == 'fs':
+	varying ${coord_type} coord;
+	% else:
+	uniform ${coord_type} coord;
+	% endif
+
+	void main()
+	{
+		% if execution_stage == 'fs':
+		gl_FragColor.xy = textureQueryLod(s, coord);
+		% else:
+		gl_Position.xy = textureQueryLod(s, coord);
+		% endif
+	}
+"""))
+
+for api, requirement in requirements.iteritems():
+	for sampler_type, coord_type in sampler_type_to_coord_type.iteritems():
+		for execution_stage in ("vs", "fs"):
+			file_extension = 'frag' if execution_stage == 'fs' else 'vert'
+			filename = os.path.join("spec",
+						api,
+						"compiler",
+						"built-in-functions",
+						"{0}.{1}"\
+						.format(sampler_type,
+							file_extension))
+			print filename
+
+			dirname = os.path.dirname(filename)
+			if not os.path.exists(dirname):
+				os.makedirs(dirname)
+
+			version = requirement['version']
+			extensions = [requirement['extension']]
+
+			# samplerCubeArray types are part GLSL 4.00
+			# or GL_ARB_texture_cube_map_array.
+			if api == "ARB_texture_query_lod" and \
+			   sampler_type in ['samplerCubeArray', \
+					    'isamplerCubeArray', \
+					    'usamplerCubeArray', \
+					    'samplerCubeArrayShadow']:
+				extensions += ['GL_ARB_texture_cube_map_array']
+
+			f = open(filename, "w")
+			f.write(template.render(version = version,
+						extensions = extensions,
+						execution_stage = execution_stage,
+						sampler_type = sampler_type,
+						coord_type = coord_type))
+			f.close()
-- 
1.7.8.6