2 * Copyright © 2014 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
27 * Clear with size set to zero and verify that the buffer data was not altered.
30 #include "piglit-util-gl.h"
33 PIGLIT_GL_TEST_CONFIG_BEGIN
35 config
.supports_gl_compat_version
= 15;
36 config
.supports_gl_core_version
= 31;
37 config
.khr_no_error_support
= PIGLIT_NO_ERRORS
;
39 PIGLIT_GL_TEST_CONFIG_END
43 piglit_init(int argc
, char **argv
)
46 const int buffer_size
= 1<<20;
48 static const char *const data_zero
= "\x00\x00\x00\x00";
49 static const char *const data_init
= "\xff\xff\xff\xff"
67 piglit_require_extension("GL_ARB_clear_buffer_object");
69 glGenBuffers(1, &buffer
);
70 glBindBuffer(GL_ARRAY_BUFFER
, buffer
);
71 glBufferData(GL_ARRAY_BUFFER
, buffer_size
, NULL
, GL_STREAM_READ
);
72 fill_array_buffer(64, data_init
);
74 glClearBufferSubData(GL_ARRAY_BUFFER
, GL_RGBA8
, 0, 0, GL_RGBA
,
75 GL_UNSIGNED_BYTE
, data_zero
);
76 glClearBufferSubData(GL_ARRAY_BUFFER
, GL_RGBA8
, buffer_size
/2, 0, GL_RGBA
,
77 GL_UNSIGNED_BYTE
, data_zero
);
78 glClearBufferSubData(GL_ARRAY_BUFFER
, GL_RGBA8
, buffer_size
, 0, GL_RGBA
,
79 GL_UNSIGNED_BYTE
, data_zero
);
81 pass
= check_array_buffer_data(64, data_init
) && pass
;
83 glBindBuffer(GL_ARRAY_BUFFER
, 0);
84 glDeleteBuffers(1, &buffer
);
86 pass
= piglit_check_gl_error(GL_NO_ERROR
) && pass
;
88 piglit_report_result(pass
? PIGLIT_PASS
: PIGLIT_FAIL
);