[Piglit] [PATCH 1/2] arb_clear_buffer_object-unaligned: new test for unaligned byte clears

[Marek Olšák]

From: Marek Olšák <marek.olsak at amd.com>

---
 tests/all.py                                       |   1 +
 .../spec/arb_clear_buffer_object/CMakeLists.gl.txt |   1 +
 tests/spec/arb_clear_buffer_object/unaligned.c     | 110 +++++++++++++++++++++
 3 files changed, 112 insertions(+)
 create mode 100644 tests/spec/arb_clear_buffer_object/unaligned.c

diff --git a/tests/all.py b/tests/all.py
index 8de1e17..8329643 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -3689,6 +3689,7 @@ with profile.group_manager(
     g(['arb_clear_buffer_object-sub-mapped'])
     g(['arb_clear_buffer_object-sub-overlap'])
     g(['arb_clear_buffer_object-sub-simple'])
+    g(['arb_clear_buffer_object-unaligned'])
     g(['arb_clear_buffer_object-zero-size'])
 
 with profile.group_manager(
diff --git a/tests/spec/arb_clear_buffer_object/CMakeLists.gl.txt b/tests/spec/arb_clear_buffer_object/CMakeLists.gl.txt
index 3a1565d..19fa309 100644
--- a/tests/spec/arb_clear_buffer_object/CMakeLists.gl.txt
+++ b/tests/spec/arb_clear_buffer_object/CMakeLists.gl.txt
@@ -18,6 +18,7 @@ piglit_add_executable (arb_clear_buffer_object-sub-invalid-size sub-invalid-size
 piglit_add_executable (arb_clear_buffer_object-sub-mapped sub-mapped.c common.c)
 piglit_add_executable (arb_clear_buffer_object-sub-overlap sub-overlap.c common.c)
 piglit_add_executable (arb_clear_buffer_object-sub-simple sub-simple.c common.c)
+piglit_add_executable (arb_clear_buffer_object-unaligned unaligned.c common.c)
 piglit_add_executable (arb_clear_buffer_object-zero-size zero-size.c common.c)
 
 # vim: ft=cmake:
diff --git a/tests/spec/arb_clear_buffer_object/unaligned.c b/tests/spec/arb_clear_buffer_object/unaligned.c
new file mode 100644
index 0000000..b73cbf7
--- /dev/null
+++ b/tests/spec/arb_clear_buffer_object/unaligned.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright © 2014 Intel Corporation
+ * Copyright © 2015 Advanced Micro Devices, 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.
+ */
+
+/**
+ * \file unaligned.c
+ *
+ * Test R8 copying with non-dword alignment.
+ */
+
+#include "piglit-util-gl.h"
+#include "common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+	config.supports_gl_compat_version = 15;
+	config.supports_gl_core_version = 31;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+#define SIZE (1 << 20)
+
+static bool debug;
+
+static void
+clear_buffer(int i, unsigned offset, unsigned size, unsigned char value, char *cpu)
+{
+	glClearBufferSubData(GL_ARRAY_BUFFER, GL_R8, offset, size,
+			     GL_RED, GL_UNSIGNED_BYTE, &value);
+	memset(cpu+offset, value, size);
+
+	if (debug && !check_array_buffer_data(SIZE, cpu)) {
+		printf("Clear %i failed: offset=%i (%%4 = %i), size=%i (%%4 = %i)\n",
+		       i, offset, offset % 4, size, size % 4);
+		piglit_report_result(PIGLIT_FAIL);
+	}
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+	bool pass = true;
+	GLuint buffer;
+	int i;
+	unsigned offset, size;
+	char *cpu = malloc(SIZE);
+
+	if (!cpu)
+		piglit_report_result(PIGLIT_FAIL);
+
+	for (i = 1; i < argc; i++)
+		if (!strcmp(argv[i], "-debug"))
+			debug = true;
+
+	piglit_require_extension("GL_ARB_clear_buffer_object");
+	glGenBuffers(1, &buffer);
+	glBindBuffer(GL_ARRAY_BUFFER, buffer);
+	glBufferData(GL_ARRAY_BUFFER, SIZE, NULL, GL_STREAM_READ);
+
+	clear_buffer(0, 0, SIZE, 0, cpu);
+
+	srand(6487216);
+	for (i = 1; i <= 200; i++) {
+		offset = rand() % SIZE;
+		size = 1 + (rand() % (SIZE - offset));
+
+		clear_buffer(i, offset, size, rand(), cpu);
+	}
+
+	/* and some small unaligned copies within one dword */
+	for (; i < 230; i++) {
+		offset = (rand() % (SIZE/4)) * 4 + 1 + (rand() % 2);
+		size = 1;
+
+		clear_buffer(i, offset, size, rand(), cpu);
+	}
+
+	pass = piglit_check_gl_error(GL_NO_ERROR) &&
+	       check_array_buffer_data(SIZE, cpu);
+	glDeleteBuffers(1, &buffer);
+	piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+	free(cpu);
+}
+
+
+enum piglit_result
+piglit_display(void)
+{
+	return PIGLIT_PASS;
+}
-- 
2.1.4