mirror of
https://github.com/baldurk/renderdoc.git
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baldurk
856c838def
* In a previous update in 2021 many copyright ranges were truncated accidentally, and some files have been copy-pasted with wrong years. These dates have been fixed based on git history and original copyright messages.
542 lines
22 KiB
C++
542 lines
22 KiB
C++
/******************************************************************************
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* The MIT License (MIT)
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*
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* Copyright (c) 2018-2026 Baldur Karlsson
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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******************************************************************************/
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#include "gl_test.h"
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RD_TEST(GL_Buffer_Updates, OpenGLGraphicsTest)
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{
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static constexpr const char *Description =
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"Test of buffer updates, both buffers that are updated regularly and get marked as "
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"dirty, as well as buffers updated mid-frame";
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std::string vertex = R"EOSHADER(
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#version 420 core
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void main()
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{
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const vec4 verts[4] = vec4[4](vec4(-1.0, -1.0, 0.5, 1.0), vec4(1.0, -1.0, 0.5, 1.0),
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vec4(-1.0, 1.0, 0.5, 1.0), vec4(1.0, 1.0, 0.5, 1.0));
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gl_Position = verts[gl_VertexID];
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}
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)EOSHADER";
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std::string pixel = R"EOSHADER(
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#version 420 core
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layout(location = 0, index = 0) out vec4 Color;
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layout(binding = 0, std140) uniform constsbuf
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{
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vec4 col;
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};
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void main()
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{
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if(col == vec4(0.0, 1.0, 0.0, 1.0))
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Color = col;
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else
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Color = vec4(1.0, 0.0, 0.0, 1.0);
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}
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)EOSHADER";
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int main()
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{
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// initialise, create window, create context, etc
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if(!Init())
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return 3;
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GLuint vao = MakeVAO();
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glBindVertexArray(vao);
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Vec4f red(1.0f, 0.0f, 0.0f, 1.0f);
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Vec4f cyan(0.0f, 1.0f, 1.0f, 1.0f);
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Vec4f green(0.0f, 1.0f, 0.0f, 1.0f);
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// clang-format explodes on these for some reason
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#define TEST_CASES() \
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BUFFER_TEST(BufferDataImmutable) \
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BUFFER_TEST(BufferStorageImmutable) \
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BUFFER_TEST(BufferDataOrphanedOnce) \
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BUFFER_TEST(BufferDataOrphanedMany) \
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BUFFER_TEST(BufferDataOrphanedPerFrame) \
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BUFFER_TEST(BufferDataUpdatedOnce) \
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BUFFER_TEST(BufferDataUpdatedMany) \
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BUFFER_TEST(BufferDataUpdatedPerFrame) \
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BUFFER_TEST(BufferStorageUpdatedOnce) \
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BUFFER_TEST(BufferStorageUpdatedMany) \
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BUFFER_TEST(BufferStorageUpdatedPerFrame) \
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BUFFER_TEST(SingleMapBufferReadback) \
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BUFFER_TEST(SingleMapBufferRangeReadback) \
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BUFFER_TEST(CoherentMapBufferRangeReadback) \
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BUFFER_TEST(CleanBufferMapWriteInvalidate) \
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BUFFER_TEST(CleanBufferMapWriteNonInvalidate) \
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BUFFER_TEST(DirtyBufferMapWriteInvalidate) \
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BUFFER_TEST(DirtyBufferMapWriteNonInvalidate) \
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BUFFER_TEST(CleanBufferMapFlushExplicit) \
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BUFFER_TEST(DirtyBufferMapFlushExplicit) \
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BUFFER_TEST(CoherentMapWrite) \
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BUFFER_TEST(CoherentMapWriteInvalidateRange) \
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BUFFER_TEST(CoherentMapWriteInvalidateBuffer) \
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BUFFER_TEST(CoherentMapWriteUnsynchronised) \
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BUFFER_TEST(NonCoherentMapFlush) \
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BUFFER_TEST(NonCoherentMapFlushUnsynchronised) \
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BUFFER_TEST(OffsetMapWrite) \
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BUFFER_TEST(OffsetMapFlush) \
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BUFFER_TEST(PersistentBufferFrameMapped)
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#undef BUFFER_TEST
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#define BUFFER_TEST(name) name,
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enum
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{
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TEST_CASES() TestCount,
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};
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#undef BUFFER_TEST
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#define BUFFER_TEST(name) #name,
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const char *TestNames[TestCount] = {TEST_CASES()};
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Vec4f *ptrs[TestCount] = {};
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GLuint buffers[TestCount] = {};
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for(int i = 0; i < TestCount; i++)
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{
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buffers[i] = MakeBuffer();
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[i]);
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}
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[BufferDataImmutable]);
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glBufferData(GL_UNIFORM_BUFFER, sizeof(Vec4f), &green, GL_STATIC_DRAW);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[BufferStorageImmutable]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &green, 0);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[BufferDataOrphanedOnce]);
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glBufferData(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_DYNAMIC_DRAW);
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glBufferData(GL_UNIFORM_BUFFER, sizeof(Vec4f), &green, GL_DYNAMIC_DRAW);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[BufferDataOrphanedMany]);
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for(int i = 0; i < 100; i++)
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glBufferData(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_DYNAMIC_DRAW);
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glBufferData(GL_UNIFORM_BUFFER, sizeof(Vec4f), &green, GL_DYNAMIC_DRAW);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[BufferDataOrphanedPerFrame]);
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for(int i = 0; i < 100; i++)
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glBufferData(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_DYNAMIC_DRAW);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[BufferDataUpdatedOnce]);
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glBufferData(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_DYNAMIC_DRAW);
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &green);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[BufferDataUpdatedMany]);
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glBufferData(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_DYNAMIC_DRAW);
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for(int i = 0; i < 100; i++)
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &red);
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &green);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[BufferDataUpdatedPerFrame]);
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glBufferData(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_DYNAMIC_DRAW);
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for(int i = 0; i < 100; i++)
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &red);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[BufferStorageUpdatedOnce]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_DYNAMIC_STORAGE_BIT);
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &green);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[BufferStorageUpdatedMany]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_DYNAMIC_STORAGE_BIT);
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for(int i = 0; i < 100; i++)
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &red);
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &green);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[BufferStorageUpdatedPerFrame]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_DYNAMIC_STORAGE_BIT);
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for(int i = 0; i < 100; i++)
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &red);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[SingleMapBufferReadback]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_MAP_READ_BIT);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[SingleMapBufferRangeReadback]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_MAP_READ_BIT);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[CoherentMapBufferRangeReadback]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red,
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GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_COHERENT_BIT);
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ptrs[CoherentMapBufferRangeReadback] =
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(Vec4f *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f),
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GL_MAP_COHERENT_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_READ_BIT);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[DirtyBufferMapWriteInvalidate]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red,
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GL_MAP_WRITE_BIT | GL_DYNAMIC_STORAGE_BIT);
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for(int i = 0; i < 100; i++)
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &red);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[DirtyBufferMapWriteNonInvalidate]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red,
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GL_MAP_WRITE_BIT | GL_DYNAMIC_STORAGE_BIT);
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for(int i = 0; i < 100; i++)
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &red);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[DirtyBufferMapFlushExplicit]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red,
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GL_MAP_WRITE_BIT | GL_DYNAMIC_STORAGE_BIT);
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for(int i = 0; i < 100; i++)
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &red);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[CoherentMapWrite]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red,
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GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_COHERENT_BIT);
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ptrs[CoherentMapWrite] =
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(Vec4f *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f),
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GL_MAP_COHERENT_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_WRITE_BIT);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[CoherentMapWriteInvalidateRange]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red,
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GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_COHERENT_BIT);
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ptrs[CoherentMapWriteInvalidateRange] = (Vec4f *)glMapBufferRange(
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GL_UNIFORM_BUFFER, 0, sizeof(Vec4f),
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GL_MAP_COHERENT_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_RANGE_BIT);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[CoherentMapWriteInvalidateBuffer]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red,
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GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_COHERENT_BIT);
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ptrs[CoherentMapWriteInvalidateBuffer] =
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(Vec4f *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f),
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GL_MAP_COHERENT_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_WRITE_BIT |
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GL_MAP_INVALIDATE_BUFFER_BIT);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[CoherentMapWriteUnsynchronised]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red,
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GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_COHERENT_BIT);
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ptrs[CoherentMapWriteUnsynchronised] = (Vec4f *)glMapBufferRange(
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GL_UNIFORM_BUFFER, 0, sizeof(Vec4f),
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GL_MAP_COHERENT_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[NonCoherentMapFlush]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
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ptrs[NonCoherentMapFlush] = (Vec4f *)glMapBufferRange(
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GL_UNIFORM_BUFFER, 0, sizeof(Vec4f),
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GL_MAP_PERSISTENT_BIT | GL_MAP_WRITE_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[NonCoherentMapFlushUnsynchronised]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
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ptrs[NonCoherentMapFlushUnsynchronised] =
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(Vec4f *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f),
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GL_MAP_PERSISTENT_BIT | GL_MAP_WRITE_BIT |
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GL_MAP_FLUSH_EXPLICIT_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[OffsetMapWrite]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &cyan,
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GL_MAP_WRITE_BIT | GL_DYNAMIC_STORAGE_BIT);
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for(int i = 0; i < 100; i++)
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &cyan);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[OffsetMapFlush]);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &cyan,
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GL_MAP_WRITE_BIT | GL_DYNAMIC_STORAGE_BIT);
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for(int i = 0; i < 100; i++)
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &cyan);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[PersistentBufferFrameMapped]);
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glBufferStorage(
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GL_UNIFORM_BUFFER, sizeof(Vec4f), &red,
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GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_COHERENT_BIT | GL_DYNAMIC_STORAGE_BIT);
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// these buffers are used for indicating a CPU readback passed or failed
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GLuint pass = MakeBuffer();
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glBindBuffer(GL_UNIFORM_BUFFER, pass);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &green, 0);
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GLuint fail = MakeBuffer();
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glBindBuffer(GL_UNIFORM_BUFFER, fail);
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glBufferStorage(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, 0);
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GLuint program = MakeProgram(vertex, pixel);
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while(Running())
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{
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float col[] = {0.2f, 0.2f, 0.2f, 1.0f};
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glClearBufferfv(GL_COLOR, 0, col);
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glBindVertexArray(vao);
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glUseProgram(program);
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glGenBuffers(1, &buffers[CleanBufferMapWriteInvalidate]);
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glGenBuffers(1, &buffers[CleanBufferMapWriteNonInvalidate]);
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glGenBuffers(1, &buffers[CleanBufferMapFlushExplicit]);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[BufferDataOrphanedPerFrame]);
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glBufferData(GL_UNIFORM_BUFFER, sizeof(Vec4f), &green, GL_DYNAMIC_DRAW);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[BufferDataUpdatedPerFrame]);
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &green);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[BufferStorageUpdatedPerFrame]);
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &green);
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glBindBuffer(GL_COPY_READ_BUFFER, pass);
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glBindBuffer(GL_COPY_WRITE_BUFFER, buffers[SingleMapBufferReadback]);
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glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, sizeof(Vec4f));
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glBindBuffer(GL_COPY_READ_BUFFER, pass);
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glBindBuffer(GL_COPY_WRITE_BUFFER, buffers[SingleMapBufferRangeReadback]);
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glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, sizeof(Vec4f));
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glBindBuffer(GL_COPY_READ_BUFFER, pass);
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glBindBuffer(GL_COPY_WRITE_BUFFER, buffers[CoherentMapBufferRangeReadback]);
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glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, sizeof(Vec4f));
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[CleanBufferMapWriteInvalidate]);
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glBufferData(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_DYNAMIC_DRAW);
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Vec4f *ptr = NULL;
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ptr = (Vec4f *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f),
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GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
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if(ptr)
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memcpy(ptr, &green, sizeof(Vec4f));
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glUnmapBuffer(GL_UNIFORM_BUFFER);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[CleanBufferMapWriteNonInvalidate]);
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glBufferData(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_DYNAMIC_DRAW);
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ptr = (Vec4f *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), GL_MAP_WRITE_BIT);
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if(ptr)
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{
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ptr->x = 0.0f;
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ptr->y = 1.0f;
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}
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glUnmapBuffer(GL_UNIFORM_BUFFER);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[DirtyBufferMapWriteInvalidate]);
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &red);
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ptr = (Vec4f *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f),
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GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
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if(ptr)
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memcpy(ptr, &green, sizeof(Vec4f));
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glUnmapBuffer(GL_UNIFORM_BUFFER);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[DirtyBufferMapWriteNonInvalidate]);
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glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &red);
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ptr = (Vec4f *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), GL_MAP_WRITE_BIT);
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if(ptr)
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{
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ptr->x = 0.0f;
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ptr->y = 1.0f;
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}
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glUnmapBuffer(GL_UNIFORM_BUFFER);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[CleanBufferMapFlushExplicit]);
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glBufferData(GL_UNIFORM_BUFFER, sizeof(Vec4f), &red, GL_DYNAMIC_DRAW);
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ptr = (Vec4f *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f),
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GL_MAP_WRITE_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
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if(ptr)
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{
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ptr->x = 0.0f;
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ptr->y = 1.0f;
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}
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glFlushMappedBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(float) * 2);
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glUnmapBuffer(GL_UNIFORM_BUFFER);
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glBindBuffer(GL_UNIFORM_BUFFER, buffers[DirtyBufferMapFlushExplicit]);
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ptr = (Vec4f *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f),
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GL_MAP_WRITE_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
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if(ptr)
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{
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ptr->x = 0.0f;
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ptr->y = 1.0f;
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}
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glFlushMappedBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(float) * 2);
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glUnmapBuffer(GL_UNIFORM_BUFFER);
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if(ptrs[CoherentMapWrite])
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memcpy(ptrs[CoherentMapWrite], &red, sizeof(Vec4f));
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if(ptrs[CoherentMapWriteInvalidateRange])
|
|
memcpy(ptrs[CoherentMapWriteInvalidateRange], &red, sizeof(Vec4f));
|
|
if(ptrs[CoherentMapWriteInvalidateBuffer])
|
|
memcpy(ptrs[CoherentMapWriteInvalidateBuffer], &red, sizeof(Vec4f));
|
|
if(ptrs[CoherentMapWriteUnsynchronised])
|
|
memcpy(ptrs[CoherentMapWriteUnsynchronised], &red, sizeof(Vec4f));
|
|
|
|
glBindBuffer(GL_UNIFORM_BUFFER, buffers[NonCoherentMapFlush]);
|
|
if(ptrs[NonCoherentMapFlush])
|
|
memcpy(ptrs[NonCoherentMapFlush], &red, sizeof(Vec4f));
|
|
glFlushMappedBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(float) * 4);
|
|
|
|
glBindBuffer(GL_UNIFORM_BUFFER, buffers[NonCoherentMapFlushUnsynchronised]);
|
|
if(ptrs[NonCoherentMapFlushUnsynchronised])
|
|
memcpy(ptrs[NonCoherentMapFlushUnsynchronised], &red, sizeof(Vec4f));
|
|
glFlushMappedBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(float) * 4);
|
|
|
|
glMemoryBarrier(GL_BUFFER_UPDATE_BARRIER_BIT);
|
|
|
|
glBindBuffer(GL_UNIFORM_BUFFER, buffers[OffsetMapWrite]);
|
|
glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &cyan);
|
|
|
|
ptr = (Vec4f *)glMapBufferRange(GL_UNIFORM_BUFFER, sizeof(float) * 2, sizeof(float),
|
|
GL_MAP_WRITE_BIT);
|
|
if(ptr)
|
|
ptr->x = 0.0f;
|
|
glUnmapBuffer(GL_UNIFORM_BUFFER);
|
|
|
|
glBindBuffer(GL_UNIFORM_BUFFER, buffers[OffsetMapFlush]);
|
|
glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &cyan);
|
|
|
|
ptr = (Vec4f *)glMapBufferRange(GL_UNIFORM_BUFFER, sizeof(float) * 2, sizeof(float),
|
|
GL_MAP_WRITE_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
|
|
if(ptr)
|
|
ptr->x = 0.0f;
|
|
glFlushMappedBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(float));
|
|
glUnmapBuffer(GL_UNIFORM_BUFFER);
|
|
|
|
glBindBuffer(GL_UNIFORM_BUFFER, buffers[PersistentBufferFrameMapped]);
|
|
glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &cyan);
|
|
|
|
ptr = (Vec4f *)glMapBufferRange(GL_UNIFORM_BUFFER, sizeof(float) * 2, sizeof(float),
|
|
GL_MAP_PERSISTENT_BIT | GL_MAP_WRITE_BIT);
|
|
if(ptr)
|
|
ptr->x = 0.0f;
|
|
glUnmapBuffer(GL_UNIFORM_BUFFER);
|
|
|
|
const int squareSize = 50;
|
|
|
|
int buf = 0;
|
|
|
|
for(int y = 0; y < screenHeight && buf < TestCount; y += squareSize)
|
|
{
|
|
for(int x = 0; x < screenWidth && buf < TestCount; x += squareSize)
|
|
{
|
|
glViewport(x + 1, y + 1, squareSize - 2, squareSize - 2);
|
|
|
|
glDebugMessageInsert(GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_MARKER, 0,
|
|
GL_DEBUG_SEVERITY_HIGH, -1, TestNames[buf]);
|
|
|
|
if(buf == CoherentMapWrite || buf == CoherentMapWriteInvalidateRange ||
|
|
buf == CoherentMapWriteInvalidateBuffer || buf == CoherentMapWriteUnsynchronised)
|
|
{
|
|
if(ptrs[buf])
|
|
memcpy(ptrs[buf], &green, sizeof(Vec4f));
|
|
|
|
if(buf == CoherentMapWriteUnsynchronised)
|
|
glMemoryBarrier(GL_BUFFER_UPDATE_BARRIER_BIT);
|
|
}
|
|
|
|
if(buf == NonCoherentMapFlush)
|
|
{
|
|
glBindBuffer(GL_UNIFORM_BUFFER, buffers[NonCoherentMapFlush]);
|
|
if(ptrs[NonCoherentMapFlush])
|
|
memcpy(ptrs[NonCoherentMapFlush], &green, sizeof(Vec4f));
|
|
glFlushMappedBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(float) * 4);
|
|
}
|
|
|
|
if(buf == NonCoherentMapFlushUnsynchronised)
|
|
{
|
|
glBindBuffer(GL_UNIFORM_BUFFER, buffers[NonCoherentMapFlushUnsynchronised]);
|
|
if(ptrs[NonCoherentMapFlushUnsynchronised])
|
|
memcpy(ptrs[NonCoherentMapFlushUnsynchronised], &green, sizeof(Vec4f));
|
|
glFlushMappedBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(float) * 4);
|
|
glMemoryBarrier(GL_BUFFER_UPDATE_BARRIER_BIT);
|
|
}
|
|
|
|
if(buf == SingleMapBufferReadback)
|
|
{
|
|
glBindBuffer(GL_COPY_READ_BUFFER, buffers[buf]);
|
|
void *mapped = glMapBuffer(GL_COPY_READ_BUFFER, GL_READ_ONLY);
|
|
|
|
if(mapped && !memcmp(mapped, &green, sizeof(Vec4f)))
|
|
glBindBufferBase(GL_UNIFORM_BUFFER, 0, pass);
|
|
else
|
|
glBindBufferBase(GL_UNIFORM_BUFFER, 0, fail);
|
|
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
|
|
|
|
glUnmapBuffer(GL_COPY_READ_BUFFER);
|
|
}
|
|
else if(buf == SingleMapBufferRangeReadback)
|
|
{
|
|
glBindBuffer(GL_COPY_READ_BUFFER, buffers[buf]);
|
|
void *mapped = glMapBufferRange(GL_COPY_READ_BUFFER, 0, sizeof(Vec4f), GL_MAP_READ_BIT);
|
|
|
|
if(mapped && !memcmp(mapped, &green, sizeof(Vec4f)))
|
|
glBindBufferBase(GL_UNIFORM_BUFFER, 0, pass);
|
|
else
|
|
glBindBufferBase(GL_UNIFORM_BUFFER, 0, fail);
|
|
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
|
|
|
|
glUnmapBuffer(GL_COPY_READ_BUFFER);
|
|
}
|
|
else if(buf == CoherentMapBufferRangeReadback)
|
|
{
|
|
if(ptrs[buf] && !memcmp(ptrs[buf], &green, sizeof(Vec4f)))
|
|
glBindBufferBase(GL_UNIFORM_BUFFER, 0, pass);
|
|
else
|
|
glBindBufferBase(GL_UNIFORM_BUFFER, 0, fail);
|
|
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
|
|
}
|
|
else
|
|
{
|
|
// default, just make sure it has green data by rendering
|
|
glBindBufferBase(GL_UNIFORM_BUFFER, 0, buffers[buf]);
|
|
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
|
|
}
|
|
|
|
buf++;
|
|
}
|
|
}
|
|
|
|
Present();
|
|
|
|
glDeleteBuffers(1, &buffers[CleanBufferMapWriteInvalidate]);
|
|
glDeleteBuffers(1, &buffers[CleanBufferMapWriteNonInvalidate]);
|
|
glDeleteBuffers(1, &buffers[CleanBufferMapFlushExplicit]);
|
|
}
|
|
|
|
// unmap any persistent buffers
|
|
for(int i = 0; i < TestCount; i++)
|
|
{
|
|
if(ptrs[i])
|
|
{
|
|
glBindBuffer(GL_UNIFORM_BUFFER, buffers[i]);
|
|
glUnmapBuffer(GL_UNIFORM_BUFFER);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
};
|
|
|
|
REGISTER_TEST();
|