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/*
* Copyright © 2011 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.
*
* Authors:
* Ben Widawsky <ben@bwidawsk.net>
*
*/
#include "piglit-util-gl.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
config.khr_no_error_support = PIGLIT_NO_ERRORS;
PIGLIT_GL_TEST_CONFIG_END
uint8_t data[1 << 20];
enum piglit_result
piglit_display(void)
{
return PIGLIT_FAIL;
}
static bool
verify_buffer(GLenum target, int offset, int length, void const *compare) {
int ret;
const void *ptr = glMapBufferRange(target, offset, length, GL_MAP_READ_BIT);
ret = memcmp(ptr, compare, length);
glUnmapBuffer(target);
return ret == 0;
}
static void
clear_buffer(GLenum target)
{
if (piglit_is_extension_supported("GL_ARB_clear_buffer_object")) {
/* Clear the buffer just to make the device busy, so that
* the driver can't optimize MapBufferRange to unsychronized
* without explicit_flush.
*/
glClearBufferData(target, GL_R32I, GL_RED_INTEGER, GL_INT, NULL);
}
}
/* This test relies on simple patterns, so using offets which are multiples of
* 0x100 is bad
*/
void
piglit_init(int argc, char *argv[])
{
uint8_t *ptr;
uint8_t temp_data[100];
GLenum target = GL_ARRAY_BUFFER;
GLenum verify = GL_COPY_WRITE_BUFFER;
GLuint handles[2];
int i;
bool ret;
piglit_require_gl_version(15);
piglit_require_extension("GL_ARB_map_buffer_range");
for (i = 0; i < sizeof(data); i++) {
data[i] = i & 0xff;
}
for (i = 0; i < 100; i++) {
temp_data[i] = i;
}
glGenBuffersARB(2, handles);
glBindBufferARB(target, handles[0]);
glBindBufferARB(verify, handles[1]);
glBufferData(target, sizeof(data), data, GL_STATIC_DRAW);
glBufferData(verify, 0x1000, NULL, GL_STREAM_READ);
glGetError();
/* Validate that reads work, this is required for remaining ops */
ret = verify_buffer(target, 0x201, 100, &data[0x201]);
if (!ret)
piglit_report_result(PIGLIT_FAIL);
/* Test 1: test the invalidate range */
ptr = glMapBufferRange(target, 0x10004, 100, GL_MAP_WRITE_BIT |
GL_MAP_INVALIDATE_RANGE_BIT);
memcpy(ptr, temp_data, 100);
glUnmapBuffer(target);
ret = verify_buffer(target, 0x10004, 100, temp_data);
if (!ret)
piglit_report_result(PIGLIT_FAIL);
/* Test 2: test unsynchronized writes */
ptr = glMapBufferRange(target, 0x50f, 100, GL_MAP_WRITE_BIT |
GL_MAP_UNSYNCHRONIZED_BIT);
memcpy(ptr, temp_data, 100);
glUnmapBuffer(target);
ret = verify_buffer(target, 0x50f, 100, temp_data);
if (!ret)
piglit_report_result(PIGLIT_FAIL);
/* Test 3: test explicitly flushed unsynchronized writes
* 3a: Check if things are magically coherent (unmap doing more than it
* should */
ptr = glMapBufferRange(target, 0xa000, 100, GL_MAP_WRITE_BIT |
GL_MAP_FLUSH_EXPLICIT_BIT |
GL_MAP_UNSYNCHRONIZED_BIT);
memcpy(ptr, temp_data, 100);
glUnmapBuffer(target);
glCopyBufferSubData(target, verify, 0xa002, 0, 100);
ret = verify_buffer(verify, 0, 100, temp_data);
if (ret)
fprintf(stderr, "Coherent without flush\n");
/* 3b: test with flushed range */
ptr = glMapBufferRange(target, 0xa002, 100, GL_MAP_WRITE_BIT |
GL_MAP_FLUSH_EXPLICIT_BIT |
GL_MAP_UNSYNCHRONIZED_BIT);
memcpy(ptr, temp_data, 100);
glFlushMappedBufferRange(target, 0x0, 100);
glUnmapBuffer(target);
glCopyBufferSubData(target, verify, 0xa002, 100, 100);
ret = verify_buffer(verify, 100, 100, temp_data);
if (!ret)
piglit_report_result(PIGLIT_FAIL);
/* 3c: test with flushed range, invalidate range */
clear_buffer(target);
ptr = glMapBufferRange(target, 0xa002, 100, GL_MAP_WRITE_BIT |
GL_MAP_FLUSH_EXPLICIT_BIT |
GL_MAP_INVALIDATE_RANGE_BIT);
memcpy(ptr, temp_data, 100);
glFlushMappedBufferRange(target, 0x0, 100);
glUnmapBuffer(target);
glCopyBufferSubData(target, verify, 0xa002, 100, 100);
ret = verify_buffer(verify, 100, 100, temp_data);
if (!ret)
piglit_report_result(PIGLIT_FAIL);
/* 3d: test with flushed range, invalidate range, non-zero flush offset */
clear_buffer(target);
ptr = glMapBufferRange(target, 0xa002 - 4, 104, GL_MAP_WRITE_BIT |
GL_MAP_FLUSH_EXPLICIT_BIT |
GL_MAP_INVALIDATE_RANGE_BIT);
memcpy(ptr + 4, temp_data, 100);
glFlushMappedBufferRange(target, 0x4, 100);
glUnmapBuffer(target);
glCopyBufferSubData(target, verify, 0xa002, 100, 100);
ret = verify_buffer(verify, 100, 100, temp_data);
if (!ret)
piglit_report_result(PIGLIT_FAIL);
piglit_report_result(PIGLIT_PASS);
}
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