gl_stream_buffer: update the information about the AMD hack
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@ -17,9 +17,10 @@ OGLStreamBuffer::OGLStreamBuffer(GLenum target, GLsizeiptr size, bool prefer_coh
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GLsizeiptr allocate_size = size;
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GLsizeiptr allocate_size = size;
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if (target == GL_ARRAY_BUFFER) {
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if (target == GL_ARRAY_BUFFER) {
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// On AMD GPU there is a strange crash in indexed drawing. The crash happens when the buffer
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// On AMD GPU there is a strange crash in indexed drawing. The crash happens when the buffer
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// read position is near the end and the crash looks like an out-of-bound access. Doubling
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// read position is near the end and is an out-of-bound access to the vertex buffer. This is
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// the allocation size for the vertex buffer seems to avoid the crash.
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// probably a bug in the driver and is related to the usage of vec3<byte> attributes in the
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// TODO (wwylele): investigate what actually happens here.
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// vertex array. Doubling the allocation size for the vertex buffer seems to avoid the
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// crash.
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allocate_size *= 2;
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allocate_size *= 2;
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}
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}
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