[Piglit] [PATCH 2/4] add new texture swizzle API test

[Brian Paul]

Test for API errors and glGet for GL_EXT_texture_swizzle.
---
 tests/all.py                                     |    1 +
 tests/spec/ext_texture_swizzle/CMakeLists.gl.txt |    1 +
 tests/spec/ext_texture_swizzle/api.c             |  122 ++++++++++++++++++++++
 3 files changed, 124 insertions(+)
 create mode 100644 tests/spec/ext_texture_swizzle/api.c

diff --git a/tests/all.py b/tests/all.py
index 0665567..c613b00 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -2644,6 +2644,7 @@ for stage in ['vs', 'gs', 'fs']:
 ext_texture_swizzle = {}
 spec['EXT_texture_swizzle'] = ext_texture_swizzle
 add_plain_test(ext_texture_swizzle, 'tex-swizzle')
+add_concurrent_test(ext_texture_swizzle, 'ext_texture_swizzle-api')
 add_concurrent_test(ext_texture_swizzle, 'ext_texture_swizzle-swizzle')
 ext_texture_swizzle['depth_texture_mode_and_swizzle'] = concurrent_test('depth_texture_mode_and_swizzle')
 
diff --git a/tests/spec/ext_texture_swizzle/CMakeLists.gl.txt b/tests/spec/ext_texture_swizzle/CMakeLists.gl.txt
index 70ecb1c..98533b2 100644
--- a/tests/spec/ext_texture_swizzle/CMakeLists.gl.txt
+++ b/tests/spec/ext_texture_swizzle/CMakeLists.gl.txt
@@ -10,6 +10,7 @@ link_libraries (
 )
 
 piglit_add_executable (depth_texture_mode_and_swizzle depth_texture_mode_and_swizzle.c)
+piglit_add_executable (ext_texture_swizzle-api api.c)
 piglit_add_executable (ext_texture_swizzle-swizzle swizzle.c)
 
 # vim: ft=cmake:
diff --git a/tests/spec/ext_texture_swizzle/api.c b/tests/spec/ext_texture_swizzle/api.c
new file mode 100644
index 0000000..212ef08
--- /dev/null
+++ b/tests/spec/ext_texture_swizzle/api.c
@@ -0,0 +1,122 @@
+/*
+ * Copyright © 2014 VMware, Inc.
+ *
+ * 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.
+ */
+
+/*
+ * Test GL_EXT_texture_swizzle API functions.
+ * Brian Paul
+ * 24 April 2014
+ */
+
+
+#include "piglit-util-gl-common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+	config.supports_gl_compat_version = 12;
+	config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
+PIGLIT_GL_TEST_CONFIG_END
+
+
+static bool
+test_get(GLenum pname, GLint expected)
+{
+	GLint val;
+
+	glGetTexParameteriv(GL_TEXTURE_2D, pname, &val);
+
+	if (val != expected) {
+		printf("glGetTexParameteriv(%s) returned %s instead of %s\n",
+		       piglit_get_gl_enum_name(pname),
+		       piglit_get_gl_enum_name(val),
+		       piglit_get_gl_enum_name(expected));
+		return false;
+	}
+
+	return true;
+}
+
+
+static bool
+test_api(void)
+{
+	static const GLint swz[4] = { GL_BLUE, GL_GREEN, GL_ALPHA, GL_ZERO };
+	GLint swzOut[4];
+
+	/* test bad param value */
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_R_EXT, GL_RGBA);
+
+	if (!piglit_check_gl_error(GL_INVALID_ENUM))
+		return false;
+
+	/* test good param values */
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_R_EXT, GL_ONE);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_G_EXT, GL_ZERO);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_B_EXT, GL_RED);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_A_EXT, GL_BLUE);
+
+	if (!piglit_check_gl_error(GL_NO_ERROR))
+		return false;
+
+	if (!test_get(GL_TEXTURE_SWIZZLE_R_EXT, GL_ONE))
+		return false;
+
+	if (!test_get(GL_TEXTURE_SWIZZLE_G_EXT, GL_ZERO))
+		return false;
+
+	if (!test_get(GL_TEXTURE_SWIZZLE_B_EXT, GL_RED))
+		return false;
+
+	if (!test_get(GL_TEXTURE_SWIZZLE_A_EXT, GL_BLUE))
+		return false;
+
+	/* set all at once */
+	glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_RGBA_EXT, swz);
+
+	if (!piglit_check_gl_error(GL_NO_ERROR))
+		return false;
+
+	glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_RGBA_EXT, swzOut);
+	if (swzOut[0] != swz[0] ||
+		swzOut[1] != swz[1] ||
+		swzOut[2] != swz[2] ||
+		swzOut[3] != swz[3]) {
+		printf("glGetTexParameteriv(GL_TEXTURE_SWIZZLE_RGBA_EXT) failed\n");
+		return false;
+	}
+
+	return true;
+}
+
+
+enum piglit_result
+piglit_display(void)
+{
+	bool p = test_api();
+	return p ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+
+void
+piglit_init(int argc, char **argv)
+{
+	piglit_require_extension("GL_EXT_texture_swizzle");
+}
-- 
1.7.10.4