If NULL is passed as the data pointer to glClearBufferData the buffer should be cleared to all zeros.
Signed-off-by: Fabian Bieler <[email protected]> --- tests/spec/arb_clear_buffer_object/null-data.c | 90 ++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 tests/spec/arb_clear_buffer_object/null-data.c diff --git a/tests/spec/arb_clear_buffer_object/null-data.c b/tests/spec/arb_clear_buffer_object/null-data.c new file mode 100644 index 0000000..26a62d8 --- /dev/null +++ b/tests/spec/arb_clear_buffer_object/null-data.c @@ -0,0 +1,90 @@ +/* + * Copyright © 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 null-data.c + * + * From the GL_ARB_clear_buffer_object spec: + * "If <data> is NULL, then the pointer is ignored and the sub-range of the + * buffer is filled with zeros." + */ + +#include "piglit-util-gl-common.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 + +enum piglit_result +piglit_display(void) +{ + return PIGLIT_PASS; +} + +void +piglit_init(int argc, char **argv) +{ + bool pass = true; + const int buffer_size = 1<<20; + unsigned int buffer; + static const char *const data_zero = "\x00\x00\x00\x00"; + static const char *const data_init = "\xff\xff\xff\xff" + "\xff\xff\xff\xff" + "\x00\x00\x00\x00" + "\x00\x00\x00\x00" + "\x55\x55\x55\x55" + "\x55\x55\x55\x55" + "\xaa\xaa\xaa\xaa" + "\xaa\xaa\xaa\xaa" + "\xff\x00\xff\x00" + "\xff\x00\xff\x00" + "\x00\xff\x00\xff" + "\x00\xff\x00\xff" + "\x91\xcc\x45\x36" + "\xd3\xe4\xe3\x5b" + "\x79\x1e\x21\x39" + "\xa8\xfa\x69\x6a"; + + + piglit_require_extension("GL_ARB_clear_buffer_object"); + + glGenBuffers(1, &buffer); + glBindBuffer(GL_ARRAY_BUFFER, buffer); + glBufferData(GL_ARRAY_BUFFER, buffer_size, NULL, GL_STREAM_READ); + fill_array_buffer(64, data_init); + + glClearBufferData(GL_ARRAY_BUFFER, GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, + NULL); + pass = check_array_buffer_data(4, data_zero) && pass; + + glBindBuffer(GL_ARRAY_BUFFER, 0); + glDeleteBuffers(1, &buffer); + + pass = piglit_check_gl_error(GL_NO_ERROR) && pass; + + piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL); +} -- 1.8.3.2 _______________________________________________ Piglit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/piglit
