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 class BufferUploadSubTest : public TestBase { 13 public: 14 BufferUploadSubTest() 15 : buffer_size_(1572864), 16 target_(GL_ARRAY_BUFFER), 17 size_(0) 18 { 19 memset(data_, 0, sizeof(data_)); 20 } 21 virtual ~BufferUploadSubTest() {} 22 virtual bool TestFunc(uint64_t iterations); 23 virtual bool Run(); 24 virtual const char* Name() const { return "buffer_upload_sub"; } 25 virtual bool IsDrawTest() const { return false; } 26 virtual const char* Unit() const { return "mbytes_sec"; } 27 28 private: 29 GLsizeiptr buffer_size_; 30 GLenum target_; 31 GLsizeiptr size_; 32 GLbyte data_[256 * 1024]; 33 DISALLOW_COPY_AND_ASSIGN(BufferUploadSubTest); 34 }; 35 36 bool BufferUploadSubTest::TestFunc(uint64_t iterations) { 37 GLintptr offset = 0; 38 for (uint64_t i = 0; i < iterations - 1; ++i) { 39 if (offset + size_ > buffer_size_) { 40 offset = 0; 41 } 42 glBufferSubData(target_, offset, size_, data_); 43 offset += size_; 44 } 45 return true; 46 } 47 48 bool BufferUploadSubTest::Run() { 49 const GLenum usages[] = {GL_DYNAMIC_DRAW, GL_STATIC_DRAW}; 50 const char * usage_names[] = {"dynamic", "static"}; 51 const GLenum targets[] = {GL_ARRAY_BUFFER, GL_ELEMENT_ARRAY_BUFFER}; 52 const char * target_names[] = {"array", "element_array"}; 53 const int sizes[] = {8, 12, 16, 32, 64, 128, 192, 256, 512, 1024, 2048, 54 4096, 8192, 16384, 32768, 65536, 131072}; 55 56 for (unsigned int uidx = 0; uidx < arraysize(usages); uidx++) { 57 GLenum usage = usages[uidx]; 58 59 for (unsigned int tidx = 0; tidx < arraysize(targets); tidx++) { 60 target_ = targets[tidx]; 61 GLuint buf = ~0; 62 glGenBuffers(1, &buf); 63 glBindBuffer(target_, buf); 64 65 for (unsigned int sidx = 0; sidx < arraysize(sizes); sidx++) { 66 size_ = sizes[sidx]; 67 glBufferData(target_, buffer_size_, NULL, usage); 68 69 std::string name = std::string(Name()) + "_" + usage_names[uidx] + "_" + 70 target_names[tidx] + "_" + IntToString(size_); 71 RunTest(this, name.c_str(), sizes[sidx], g_width, g_height, true); 72 CHECK(!glGetError()); 73 } 74 75 glDeleteBuffers(1, &buf); 76 } 77 } 78 79 return true; 80 } 81 82 TestBase* GetBufferUploadSubTest() { 83 return new BufferUploadSubTest; 84 } 85 86 } // namespace glbench 87
