[Piglit] [PATCH 7/7] arb_gpu_shader5: test reading GEOMETRY_SHADER_INVOCATIONS

[Jordan Justen]

Signed-off-by: Jordan Justen <jordan.l.justen at intel.com>
---
 tests/spec/arb_gpu_shader5/CMakeLists.txt          |   1 +
 .../arb_gpu_shader5/execution/CMakeLists.gl.txt    |  12 +++
 .../spec/arb_gpu_shader5/execution/CMakeLists.txt  |   1 +
 .../spec/arb_gpu_shader5/execution/invocation-id.c | 110 +++++++++++++++++++++
 4 files changed, 124 insertions(+)
 create mode 100644 tests/spec/arb_gpu_shader5/execution/CMakeLists.gl.txt
 create mode 100644 tests/spec/arb_gpu_shader5/execution/CMakeLists.txt
 create mode 100644 tests/spec/arb_gpu_shader5/execution/invocation-id.c

diff --git a/tests/spec/arb_gpu_shader5/CMakeLists.txt b/tests/spec/arb_gpu_shader5/CMakeLists.txt
index 4a012b9..c376334 100644
--- a/tests/spec/arb_gpu_shader5/CMakeLists.txt
+++ b/tests/spec/arb_gpu_shader5/CMakeLists.txt
@@ -1 +1,2 @@
+add_subdirectory (execution)
 piglit_include_target_api()
\ No newline at end of file
diff --git a/tests/spec/arb_gpu_shader5/execution/CMakeLists.gl.txt b/tests/spec/arb_gpu_shader5/execution/CMakeLists.gl.txt
new file mode 100644
index 0000000..aa0ea20
--- /dev/null
+++ b/tests/spec/arb_gpu_shader5/execution/CMakeLists.gl.txt
@@ -0,0 +1,12 @@
+include_directories(
+	${GLEXT_INCLUDE_DIR}
+	${OPENGL_INCLUDE_PATH}
+)
+
+link_libraries (
+	piglitutil_${piglit_target_api}
+	${OPENGL_gl_LIBRARY}
+	${OPENGL_glu_LIBRARY}
+)
+
+piglit_add_executable (arb_gpu_shader5-invocation-id invocation-id.c)
diff --git a/tests/spec/arb_gpu_shader5/execution/CMakeLists.txt b/tests/spec/arb_gpu_shader5/execution/CMakeLists.txt
new file mode 100644
index 0000000..4a012b9
--- /dev/null
+++ b/tests/spec/arb_gpu_shader5/execution/CMakeLists.txt
@@ -0,0 +1 @@
+piglit_include_target_api()
\ No newline at end of file
diff --git a/tests/spec/arb_gpu_shader5/execution/invocation-id.c b/tests/spec/arb_gpu_shader5/execution/invocation-id.c
new file mode 100644
index 0000000..58bf383
--- /dev/null
+++ b/tests/spec/arb_gpu_shader5/execution/invocation-id.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2014 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.
+ */
+
+/** @file invocation-id.c
+ *
+ * Verifies reading GL_GEOMETRY_SHADER_INVOCATIONS
+ */
+
+ #include "piglit-util-gl-common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+	config.supports_gl_compat_version = 32;
+	config.supports_gl_core_version   = 32;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+const char *vs_source = {
+	"#version 150\n"
+	"void main() {}\n"
+};
+
+const char *gs_source1 = {
+	"#version 150\n"
+	"#extension GL_ARB_gpu_shader5 : enable\n"
+	"layout(triangles) in;\n"
+	"layout(triangle_strip, max_vertices = 3) out;\n"
+	"\n"
+	"void main() {}\n"
+};
+
+const char *gs_source4 = {
+	"#version 150\n"
+	"#extension GL_ARB_gpu_shader5 : enable\n"
+	"layout(triangles, invocations = 4) in;\n"
+	"layout(triangle_strip, max_vertices = 3) out;\n"
+	"\n"
+	"void main() {}\n"
+};
+
+const char *fs_source = {
+	"#version 150\n"
+	"void main() {\n"
+	"	gl_FragColor = vec4(0, 1, 0, 1);\n"
+	"}\n"
+};
+
+static bool
+test_gs_invocations(const char *gs_src, GLint expected)
+{
+	GLint program;
+	GLint invocations;
+	bool pass = true;
+
+	program = piglit_build_simple_program_multiple_shaders(
+						GL_VERTEX_SHADER,   vs_source,
+						GL_GEOMETRY_SHADER, gs_src,
+						GL_FRAGMENT_SHADER, fs_source,
+						0);
+	pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+	if (!pass)
+		return pass;
+
+	glGetProgramiv(program, GL_GEOMETRY_SHADER_INVOCATIONS, &invocations);
+	pass = piglit_check_gl_error(GL_NO_ERROR);
+	pass = pass && (invocations == expected);
+
+	glDeleteProgram(program);
+
+	return pass;
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+	bool pass = true;
+
+	pass = test_gs_invocations(gs_source1, 1) && pass;
+	pass = test_gs_invocations(gs_source4, 4) && pass;
+
+	piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
+
+enum piglit_result
+piglit_display(void)
+{
+	/* UNREACHABLE */
+	return PIGLIT_FAIL;
+}
+
-- 
1.8.5.3