[Piglit] [PATCH 8/8] ARB_draw_indirect: add instances test

[Chris Forbes]

Signed-off-by: Chris Forbes <chrisf at ijw.co.nz>
---
 tests/all.tests                                    |   1 +
 tests/spec/arb_draw_indirect/CMakeLists.gl.txt     |   1 +
 .../spec/arb_draw_indirect/draw-arrays-instances.c | 123 +++++++++++++++++++++
 3 files changed, 125 insertions(+)
 create mode 100644 tests/spec/arb_draw_indirect/draw-arrays-instances.c

diff --git a/tests/all.tests b/tests/all.tests
index 4e7777b..ed8f79f 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -1225,6 +1225,7 @@ add_concurrent_test(arb_draw_indirect, 'arb_draw_indirect-draw-arrays-base-insta
 add_concurrent_test(arb_draw_indirect, 'arb_draw_indirect-draw-elements-base-instance')
 add_concurrent_test(arb_draw_indirect, 'arb_draw_indirect-draw-elements-prim-restart')
 add_concurrent_test(arb_draw_indirect, 'arb_draw_indirect-draw-elements-prim-restart-ugly')
+add_concurrent_test(arb_draw_indirect, 'arb_draw_indirect-draw-arrays-instances')
 
 # Group ARB_fragment_program
 arb_fragment_program = Group()
diff --git a/tests/spec/arb_draw_indirect/CMakeLists.gl.txt b/tests/spec/arb_draw_indirect/CMakeLists.gl.txt
index 1fa189c..94735db 100644
--- a/tests/spec/arb_draw_indirect/CMakeLists.gl.txt
+++ b/tests/spec/arb_draw_indirect/CMakeLists.gl.txt
@@ -16,5 +16,6 @@ piglit_add_executable (arb_draw_indirect-draw-arrays-base-instance draw-arrays-b
 piglit_add_executable (arb_draw_indirect-draw-elements-base-instance draw-elements-base-instance.c)
 piglit_add_executable (arb_draw_indirect-draw-elements-prim-restart draw-elements-prim-restart.c)
 piglit_add_executable (arb_draw_indirect-draw-elements-prim-restart-ugly draw-elements-prim-restart-ugly.c)
+piglit_add_executable (arb_draw_indirect-draw-arrays-instances draw-arrays-instances.c)
 
 # vim: ft=cmake:
diff --git a/tests/spec/arb_draw_indirect/draw-arrays-instances.c b/tests/spec/arb_draw_indirect/draw-arrays-instances.c
new file mode 100644
index 0000000..1d7c240
--- /dev/null
+++ b/tests/spec/arb_draw_indirect/draw-arrays-instances.c
@@ -0,0 +1,123 @@
+/*
+ * 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.
+ *
+ */
+
+/* Basic test of glDrawElementsIndirect */
+
+#include "piglit-util-gl-common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+	config.supports_gl_core_version = 31;
+
+	config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGB;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+GLuint vao;
+GLint prog;
+
+float green[] = {0,1,0};
+float blue[] = {0,0,1};
+
+enum piglit_result
+piglit_display(void)
+{
+	bool pass = true;
+	int i;
+
+	glViewport(0, 0, 128, 128);
+
+	glClearColor(0,0,1,1);
+	glClear(GL_COLOR_BUFFER_BIT);
+
+	glBindVertexArray(vao);
+	glUseProgram(prog);
+
+	glDrawArraysIndirect(GL_TRIANGLE_STRIP, (GLvoid const *)0);
+
+	glUseProgram(0);
+
+	piglit_present_results();
+
+	for (i = 0; i < 8; i++)
+		pass = piglit_probe_pixel_rgb( 8 + 16 * i, 64, green) && pass;
+
+	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+float vertices_data[] = {
+	-1, -1,
+	 1, -1,
+	-1,  1,
+	 1,  1,
+};
+
+GLuint indirect_data[] = {
+	4,		/* count */
+	8,		/* primcount */
+	0,		/* first vertex */
+	0,		/* mbz */
+};
+
+void
+piglit_init(int argc, char **argv)
+{
+	GLuint vertices_bo;
+	GLuint indirect_bo;
+
+	piglit_require_extension("GL_ARB_draw_indirect");
+
+	glGenVertexArrays(1, &vao);
+	glBindVertexArray(vao);
+
+	glGenBuffers(1, &vertices_bo);
+	glBindBuffer(GL_ARRAY_BUFFER, vertices_bo);
+	glBufferData(GL_ARRAY_BUFFER, sizeof(vertices_data), vertices_data, GL_STATIC_DRAW);
+	glEnableVertexAttribArray(0);
+	glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, 0);
+
+	glGenBuffers(1, &indirect_bo);
+	glBindBuffer(GL_DRAW_INDIRECT_BUFFER, indirect_bo);
+	glBufferData(GL_DRAW_INDIRECT_BUFFER, sizeof(indirect_data), indirect_data, GL_STATIC_DRAW);
+
+	prog = piglit_build_simple_program(
+			"#version 140\n"
+			"#extension GL_ARB_explicit_attrib_location: require\n"
+			"\n"
+			"layout(location=0) in vec2 pos;\n"
+			"\n"
+			"void main() {\n"
+			"	float x = -0.875 + gl_InstanceID * 0.25 + 0.075 * pos.x;\n"
+			"	float y = 0.075 * pos.y;\n"
+			"	gl_Position = vec4(x, y, 0, 1);\n"
+			"}\n",
+
+			"#version 140\n"
+			"\n"
+			"void main() {\n"
+			"	gl_FragColor = vec4(0,1,0,1);\n"
+			"}\n");
+
+	glBindVertexArray(0);
+}
-- 
1.8.4.2