1 // Copyright (c) 2018 The Chromium OS Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "arraysize.h"
6 #include "main.h"
7 #include "testbase.h"
8 #include "utils.h"
9
10 namespace glbench {
11
12 namespace {
13
14 const int kNumberOfBuffers = 1;
15
16 } // namespace
17
18 class BufferUploadTest : public TestBase {
19 public:
BufferUploadTest()20 BufferUploadTest()
21 : target_(GL_ARRAY_BUFFER),
22 size_(0),
23 usage_(GL_DYNAMIC_DRAW)
24 {
25 memset(data_, 0, sizeof(data_));
26 }
~BufferUploadTest()27 virtual ~BufferUploadTest() {}
28 virtual bool TestFunc(uint64_t iterations);
29 virtual bool Run();
Name() const30 virtual const char* Name() const { return "buffer_upload"; }
IsDrawTest() const31 virtual bool IsDrawTest() const { return false; }
Unit() const32 virtual const char* Unit() const { return "mbytes_sec"; }
33
34 private:
35 GLenum target_;
36 GLsizeiptr size_;
37 GLenum usage_;
38 GLbyte data_[256 * 1024];
39 GLuint buffers_[kNumberOfBuffers];
40 DISALLOW_COPY_AND_ASSIGN(BufferUploadTest);
41 };
42
TestFunc(uint64_t iterations)43 bool BufferUploadTest::TestFunc(uint64_t iterations) {
44 for (uint64_t i = 0; i < iterations - 1; ++i) {
45 if (kNumberOfBuffers > 1) {
46 glBindBuffer(target_, buffers_[i % kNumberOfBuffers]);
47 }
48 glBufferData(target_, size_, data_, usage_);
49 }
50 return true;
51 }
52
Run()53 bool BufferUploadTest::Run() {
54 const GLenum usages[] = {GL_DYNAMIC_DRAW, GL_STATIC_DRAW};
55 const char * usage_names[] = {"dynamic", "static"};
56 const GLenum targets[] = {GL_ARRAY_BUFFER, GL_ELEMENT_ARRAY_BUFFER};
57 const char * target_names[] = {"array", "element_array"};
58 const int sizes[] = {8, 12, 16, 32, 64, 128, 192, 256, 512, 1024, 2048,
59 4096, 8192, 16384, 32768, 65536, 131072};
60
61 for (unsigned int uidx = 0; uidx < arraysize(usages); uidx++) {
62 usage_ = usages[uidx];
63
64 for (unsigned int tidx = 0; tidx < arraysize(targets); tidx++) {
65 target_ = targets[tidx];
66 glGenBuffers(kNumberOfBuffers, buffers_);
67 if (kNumberOfBuffers == 1) {
68 glBindBuffer(target_, buffers_[0]);
69 }
70
71 for (unsigned int sidx = 0; sidx < arraysize(sizes); sidx++) {
72 size_ = sizes[sidx];
73
74 std::string name = std::string(Name()) + "_" + usage_names[uidx] + "_" +
75 target_names[tidx] + "_" + IntToString(size_);
76 RunTest(this, name.c_str(), sizes[sidx], g_width, g_height, true);
77 CHECK(!glGetError());
78 }
79
80 glDeleteBuffers(kNumberOfBuffers, buffers_);
81 }
82 }
83
84 return true;
85 }
86
GetBufferUploadTest()87 TestBase* GetBufferUploadTest() {
88 return new BufferUploadTest;
89 }
90
91 } // namespace glbench
92