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Test that mapping and unmapping a "persistent" buffer each frame works

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baldurk
2021-11-11 15:20:43 +00:00
parent eb96e8007c
commit 77e11abf07
1 changed files with 16 additions and 1 deletions
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util/test/demos/gl/gl_buffer_updates.cpp
+16 -1
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@@ -105,7 +105,8 @@ void main()
BUFFER_TEST(NonCoherentMapFlush) \
BUFFER_TEST(NonCoherentMapFlushUnsynchronised) \
BUFFER_TEST(OffsetMapWrite) \
BUFFER_TEST(OffsetMapFlush)
BUFFER_TEST(OffsetMapFlush) \
BUFFER_TEST(PersistentBufferFrameMapped)
#undef BUFFER_TEST
#define BUFFER_TEST(name) name,
@@ -266,6 +267,11 @@ void main()
for(int i = 0; i < 100; i++)
glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(Vec4f), &cyan);
glBindBuffer(GL_UNIFORM_BUFFER, buffers[PersistentBufferFrameMapped]);
glBufferStorage(
GL_UNIFORM_BUFFER, sizeof(Vec4f), &red,
GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_COHERENT_BIT | GL_DYNAMIC_STORAGE_BIT);
// these buffers are used for indicating a CPU readback passed or failed
GLuint pass = MakeBuffer();
glBindBuffer(GL_UNIFORM_BUFFER, pass);
@@ -416,6 +422,15 @@ void main()
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;