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: 20 BufferUploadTest() 21 : target_(GL_ARRAY_BUFFER), 22 size_(0), 23 usage_(GL_DYNAMIC_DRAW) 24 { 25 memset(data_, 0, sizeof(data_)); 26 } 27 virtual ~BufferUploadTest() {} 28 virtual bool TestFunc(uint64_t iterations); 29 virtual bool Run(); 30 virtual const char* Name() const { return "buffer_upload"; } 31 virtual bool IsDrawTest() const { return false; } 32 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 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 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 87 TestBase* GetBufferUploadTest() { 88 return new BufferUploadTest; 89 } 90 91 } // namespace glbench 92
