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Made an attemp to deal with glUnmapBuffer(GL_ARRAY_BUFFER) == GL_FALSE.

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This commit is contained in:
Thomas Harte 2016-03-18 21:35:52 -04:00
parent 0b1c9fb291
commit 5b37a651ac
1 changed files with 7 additions and 2 deletions
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9
Outputs/CRT/Internals/CRTOpenGL.cpp
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@ -206,7 +206,6 @@ void OpenGLOutputBuilder::draw_frame(unsigned int output_width, unsigned int out
size_t first_size = InputVertexBufferDataSize - start;
memcpy(&target[start], &_output_buffer_data[start], first_size);
memcpy(target, _output_buffer_data, length - first_size);
glUnmapBuffer(GL_ARRAY_BUFFER);
}
}
else
@ -215,10 +214,16 @@ void OpenGLOutputBuilder::draw_frame(unsigned int output_width, unsigned int out
if(target)
{
memcpy(target, &_output_buffer_data[start], length);
glUnmapBuffer(GL_ARRAY_BUFFER);
}
}
while(glUnmapBuffer(GL_ARRAY_BUFFER) == GL_FALSE)
{
// "the data store contents are undefined. An application must detect this rare condition and reinitialize the data store."
uint8_t *target = (uint8_t *)glMapBufferRange(GL_ARRAY_BUFFER, 0, InputVertexBufferDataSize, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
memcpy(target, _output_buffer_data, InputVertexBufferDataSize);
}
_run_builders[run]->amount_of_uploaded_data = _run_builders[run]->amount_of_data;
}