1 /*
2 * Copyright © 2014 Intel Corporation
3 * Copyright © 2015 Advanced Micro Devices, Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22 * IN THE SOFTWARE.
23 */
24
25 /**
26 * \file unaligned.c
27 *
28 * Test R8 copying with non-dword alignment.
29 */
30
31 #include "piglit-util-gl.h"
32 #include "common.h"
33
34 PIGLIT_GL_TEST_CONFIG_BEGIN
35
36 config.supports_gl_compat_version = 15;
37 config.supports_gl_core_version = 31;
38 config.khr_no_error_support = PIGLIT_NO_ERRORS;
39
40 PIGLIT_GL_TEST_CONFIG_END
41
42 #define SIZE (1 << 20)
43
44 static bool debug;
45
46 static void
clear_buffer(int i,unsigned offset,unsigned size,unsigned char value,char * cpu)47 clear_buffer(int i, unsigned offset, unsigned size, unsigned char value, char *cpu)
48 {
49 glClearBufferSubData(GL_ARRAY_BUFFER, GL_R8, offset, size,
50 GL_RED, GL_UNSIGNED_BYTE, &value);
51 memset(cpu+offset, value, size);
52
53 if (debug && !check_array_buffer_data(SIZE, cpu)) {
54 printf("Clear %i failed: offset=%i (%%4 = %i), size=%i (%%4 = %i)\n",
55 i, offset, offset % 4, size, size % 4);
56 piglit_report_result(PIGLIT_FAIL);
57 }
58 }
59
60 void
piglit_init(int argc,char ** argv)61 piglit_init(int argc, char **argv)
62 {
63 bool pass = true;
64 GLuint buffer;
65 int i;
66 unsigned offset, size;
67 char *cpu = malloc(SIZE);
68
69 if (!cpu)
70 piglit_report_result(PIGLIT_FAIL);
71
72 for (i = 1; i < argc; i++)
73 if (!strcmp(argv[i], "-debug"))
74 debug = true;
75
76 piglit_require_extension("GL_ARB_clear_buffer_object");
77 glGenBuffers(1, &buffer);
78 glBindBuffer(GL_ARRAY_BUFFER, buffer);
79 glBufferData(GL_ARRAY_BUFFER, SIZE, NULL, GL_STREAM_READ);
80
81 clear_buffer(0, 0, SIZE, 0, cpu);
82
83 srand(6487216);
84 for (i = 1; i <= 200; i++) {
85 offset = rand() % SIZE;
86 size = 1 + (rand() % (SIZE - offset));
87
88 clear_buffer(i, offset, size, rand(), cpu);
89 }
90
91 /* and some small unaligned copies within one dword */
92 for (; i < 230; i++) {
93 offset = (rand() % (SIZE/4)) * 4 + 1 + (rand() % 2);
94 size = 1;
95
96 clear_buffer(i, offset, size, rand(), cpu);
97 }
98
99 pass = piglit_check_gl_error(GL_NO_ERROR) &&
100 check_array_buffer_data(SIZE, cpu);
101 glDeleteBuffers(1, &buffer);
102 free(cpu);
103 piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
104 }
105
106
107 enum piglit_result
piglit_display(void)108 piglit_display(void)
109 {
110 return PIGLIT_PASS;
111 }
112