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/*
* 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;
config.khr_no_error_support = PIGLIT_NO_ERRORS;
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);
free(cpu);
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
enum piglit_result
piglit_display(void)
{
return PIGLIT_PASS;
}
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