[Piglit] [PATCH] copybuffersubdata: test GL_ARB_copy_buffer extension

[Ian Romanick]

On 01/04/2012 01:57 PM, Brian Paul wrote:
> ---
>   tests/all.tests                   |    1 +
>   tests/general/CMakeLists.gl.txt   |    1 +
>   tests/general/copybuffersubdata.c |  105 +++++++++++++++++++++++++++++++++++++

I think this should live in tests/spec/arb_copy_buffer.  Other than that,

Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>

>   3 files changed, 107 insertions(+), 0 deletions(-)
>   create mode 100644 tests/general/copybuffersubdata.c
>
> diff --git a/tests/all.tests b/tests/all.tests
> index dba691c..05d1a4e 100644
> --- a/tests/all.tests
> +++ b/tests/all.tests
> @@ -226,6 +226,7 @@ add_plain_test(general, 'blendsquare')
>   add_plain_test(general, 'clear-varray-2.0')
>   add_plain_test(general, 'copypixels-draw-sync')
>   add_plain_test(general, 'copypixels-sync')
> +add_plain_test(general, 'copybuffersubdata')
>   add_plain_test(general, 'depthrange-clear')
>   add_plain_test(general, 'depth_clamp')
>   add_plain_test(general, 'depth-clamp-range')
> diff --git a/tests/general/CMakeLists.gl.txt b/tests/general/CMakeLists.gl.txt
> index f8c5ddf..e8e920a 100644
> --- a/tests/general/CMakeLists.gl.txt
> +++ b/tests/general/CMakeLists.gl.txt
> @@ -21,6 +21,7 @@ add_executable (blendsquare blendsquare.c)
>   add_executable (clear-varray-2.0 clear-varray-2.0.c)
>   add_executable (copypixels-sync copypixels-sync.c)
>   add_executable (copypixels-draw-sync copypixels-draw-sync.c)
> +add_executable (copybuffersubdata copybuffersubdata.c)
>   add_executable (depth-clamp-range depth-clamp-range.c)
>   add_executable (dlist-clear dlist-clear.c)
>   add_executable (dlist-fdo3129-01 dlist-fdo3129-01.c)
> diff --git a/tests/general/copybuffersubdata.c b/tests/general/copybuffersubdata.c
> new file mode 100644
> index 0000000..8661e5c
> --- /dev/null
> +++ b/tests/general/copybuffersubdata.c
> @@ -0,0 +1,105 @@
> +/*
> + * Copyright © 2012 VMware, 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.
> + */
> +
> +/**
> + * Test GL_ARB_copy_buffer
> + *
> + * Brian Paul
> + * Jan 2012
> + */
> +
> +#include "piglit-util.h"
> +
> +int piglit_width = 100, piglit_height = 100;
> +int piglit_window_mode = GLUT_RGB | GLUT_DOUBLE;
> +
> +
> +static GLboolean
> +test_copy(void)
> +{
> +#define BUF_SIZE 600  /* multiple of 100 */
> +
> +	GLuint bufs[2];
> +	char data[BUF_SIZE], *p;
> +	int i;
> +	int chunk = 100;
> +	GLboolean pass = GL_TRUE;
> +
> +	assert(BUF_SIZE % chunk == 0);
> +
> +	glGenBuffers(2, bufs);
> +
> +	for (i = 0; i<  BUF_SIZE; i++)
> +		data[i] = rand() % 256;
> +
> +	glBindBufferARB(GL_COPY_READ_BUFFER, bufs[0]);
> +	glBufferData(GL_COPY_READ_BUFFER, BUF_SIZE, data, GL_STATIC_DRAW);
> +
> +	glBindBufferARB(GL_COPY_WRITE_BUFFER, bufs[1]);
> +	glBufferData(GL_COPY_WRITE_BUFFER, BUF_SIZE, NULL, GL_DYNAMIC_COPY);
> +
> +	/* copy from bufs[0] to bufs[1] in chunks */
> +	for (i = 0; i<  BUF_SIZE / chunk; i++) {
> +		int srcOffset = i * chunk;
> +		int dstOffset = i * chunk;
> +		glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER,
> +				    srcOffset, dstOffset, chunk);
> +	}
> +
> +	/* verify dest buffer */
> +	p = glMapBuffer(GL_COPY_WRITE_BUFFER, GL_READ_ONLY);
> +	for (i = 0; i<  BUF_SIZE; i++) {
> +		if (p[i] != data[i]) {
> +			printf("expected %d, found %d at location %d\n",
> +			       data[i], p[i], i);
> +			pass = GL_FALSE;
> +			break;
> +		}
> +	}
> +
> +	glUnmapBuffer(GL_COPY_WRITE_BUFFER);
> +
> +	glDeleteBuffers(2, bufs);
> +
> +	return pass;
> +}
> +
> +
> +enum piglit_result
> +piglit_display(void)
> +{
> +	return PIGLIT_PASS;
> +}
> +
> +
> +void
> +piglit_init(int argc, char **argv)
> +{
> +	if (!piglit_is_extension_supported("GL_ARB_copy_buffer"))
> +		piglit_report_result(PIGLIT_SKIP);
> +
> +	if (!test_copy())
> +		piglit_report_result(PIGLIT_FAIL);
> +	else
> +		piglit_report_result(PIGLIT_PASS);
> +}