tests/spec/arb_map_buffer_range/map_buffer_range_test.c

   1 /*
   2  * Copyright © 2011 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Ben Widawsky <ben@bwidawsk.net>
  25  *
  26  */
  27
  28 #include "piglit-util-gl.h"
  29
  30 PIGLIT_GL_TEST_CONFIG_BEGIN
  31
  32         config.supports_gl_compat_version = 10;
  33
  34         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  35
  36         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  37
  38 PIGLIT_GL_TEST_CONFIG_END
  39
  40 uint8_t data[1 << 20];
  41
  42 enum piglit_result
  43 piglit_display(void)
  44 {
  45         return PIGLIT_FAIL;
  46 }
  47
  48 static bool
  49 verify_buffer(GLenum target, int offset, int length, void const *compare) {
  50         int ret;
  51         const void *ptr = glMapBufferRange(target, offset, length, GL_MAP_READ_BIT);
  52         ret = memcmp(ptr, compare, length);
  53         glUnmapBuffer(target);
  54
  55         return ret == 0;
  56 }
  57
  58 static void
  59 clear_buffer(GLenum target)
  60 {
  61         if (piglit_is_extension_supported("GL_ARB_clear_buffer_object")) {
  62                 /* Clear the buffer just to make the device busy, so that
  63                  * the driver can't optimize MapBufferRange to unsychronized
  64                  * without explicit_flush.
  65                  */
  66                 glClearBufferData(target, GL_R32I, GL_RED_INTEGER, GL_INT, NULL);
  67         }
  68 }
  69
  70 /* This test relies on simple patterns, so using offets which are multiples of
  71  * 0x100 is bad
  72  */
  73 void
  74 piglit_init(int argc, char *argv[])
  75 {
  76         uint8_t *ptr;
  77         uint8_t temp_data[100];
  78         GLenum target = GL_ARRAY_BUFFER;
  79         GLenum verify = GL_COPY_WRITE_BUFFER;
  80         GLuint handles[2];
  81         int i;
  82         bool ret;
  83
  84         piglit_require_gl_version(15);
  85
  86         piglit_require_extension("GL_ARB_map_buffer_range");
  87
  88         for (i = 0; i < sizeof(data); i++) {
  89                 data[i] = i & 0xff;
  90         }
  91
  92         for (i = 0; i < 100; i++) {
  93                 temp_data[i] = i;
  94         }
  95
  96         glGenBuffersARB(2, handles);
  97         glBindBufferARB(target, handles[0]);
  98         glBindBufferARB(verify, handles[1]);
  99         glBufferData(target, sizeof(data), data, GL_STATIC_DRAW);
 100         glBufferData(verify, 0x1000, NULL, GL_STREAM_READ);
 101
 102         glGetError();
 103
 104         /* Validate that reads work, this is required for remaining ops */
 105         ret = verify_buffer(target, 0x201, 100, &data[0x201]);
 106         if (!ret)
 107                 piglit_report_result(PIGLIT_FAIL);
 108
 109         /* Test 1: test the invalidate range */
 110         ptr = glMapBufferRange(target, 0x10004, 100, GL_MAP_WRITE_BIT |
 111                                                      GL_MAP_INVALIDATE_RANGE_BIT);
 112         memcpy(ptr, temp_data, 100);
 113         glUnmapBuffer(target);
 114         ret = verify_buffer(target, 0x10004, 100, temp_data);
 115         if (!ret)
 116                 piglit_report_result(PIGLIT_FAIL);
 117
 118         /* Test 2: test unsynchronized writes */
 119         ptr = glMapBufferRange(target, 0x50f, 100, GL_MAP_WRITE_BIT |
 120                                                    GL_MAP_UNSYNCHRONIZED_BIT);
 121         memcpy(ptr, temp_data, 100);
 122         glUnmapBuffer(target);
 123         ret = verify_buffer(target, 0x50f, 100, temp_data);
 124         if (!ret)
 125                 piglit_report_result(PIGLIT_FAIL);
 126
 127         /* Test 3: test explicitly flushed unsynchronized writes
 128          * 3a: Check if things are magically coherent (unmap doing more than it
 129          * should */
 130         ptr = glMapBufferRange(target, 0xa000, 100, GL_MAP_WRITE_BIT |
 131                                                     GL_MAP_FLUSH_EXPLICIT_BIT |
 132                                                     GL_MAP_UNSYNCHRONIZED_BIT);
 133         memcpy(ptr, temp_data, 100);
 134         glUnmapBuffer(target);
 135         glCopyBufferSubData(target, verify, 0xa002, 0, 100);
 136         ret = verify_buffer(verify, 0, 100, temp_data);
 137         if (ret)
 138                 fprintf(stderr, "Coherent without flush\n");
 139
 140         /* 3b: test with flushed range */
 141         ptr = glMapBufferRange(target, 0xa002, 100, GL_MAP_WRITE_BIT |
 142                                                     GL_MAP_FLUSH_EXPLICIT_BIT |
 143                                                     GL_MAP_UNSYNCHRONIZED_BIT);
 144         memcpy(ptr, temp_data, 100);
 145         glFlushMappedBufferRange(target, 0x0, 100);
 146         glUnmapBuffer(target);
 147         glCopyBufferSubData(target, verify, 0xa002, 100, 100);
 148         ret = verify_buffer(verify, 100, 100, temp_data);
 149         if (!ret)
 150                 piglit_report_result(PIGLIT_FAIL);
 151
 152         /* 3c: test with flushed range, invalidate range */
 153         clear_buffer(target);
 154         ptr = glMapBufferRange(target, 0xa002, 100, GL_MAP_WRITE_BIT |
 155                                                     GL_MAP_FLUSH_EXPLICIT_BIT |
 156                                                     GL_MAP_INVALIDATE_RANGE_BIT);
 157         memcpy(ptr, temp_data, 100);
 158         glFlushMappedBufferRange(target, 0x0, 100);
 159         glUnmapBuffer(target);
 160         glCopyBufferSubData(target, verify, 0xa002, 100, 100);
 161         ret = verify_buffer(verify, 100, 100, temp_data);
 162         if (!ret)
 163                 piglit_report_result(PIGLIT_FAIL);
 164
 165         /* 3d: test with flushed range, invalidate range, non-zero flush offset */
 166         clear_buffer(target);
 167         ptr = glMapBufferRange(target, 0xa002 - 4, 104, GL_MAP_WRITE_BIT |
 168                                                         GL_MAP_FLUSH_EXPLICIT_BIT |
 169                                                         GL_MAP_INVALIDATE_RANGE_BIT);
 170         memcpy(ptr + 4, temp_data, 100);
 171         glFlushMappedBufferRange(target, 0x4, 100);
 172         glUnmapBuffer(target);
 173         glCopyBufferSubData(target, verify, 0xa002, 100, 100);
 174         ret = verify_buffer(verify, 100, 100, temp_data);
 175         if (!ret)
 176                 piglit_report_result(PIGLIT_FAIL);
 177
 178         piglit_report_result(PIGLIT_PASS);
 179 }