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gl_stream_buffer: update the information about the AMD hack

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This commit is contained in:
wwylele 2018-05-18 14:08:12 +03:00
parent dd6252a676
commit 129b893509
1 changed files with 4 additions and 3 deletions
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7
src/video_core/renderer_opengl/gl_stream_buffer.cpp
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@ -17,9 +17,10 @@ OGLStreamBuffer::OGLStreamBuffer(GLenum target, GLsizeiptr size, bool prefer_coh
GLsizeiptr allocate_size = size;
if (target == GL_ARRAY_BUFFER) {
// On AMD GPU there is a strange crash in indexed drawing. The crash happens when the buffer
// read position is near the end and the crash looks like an out-of-bound access. Doubling
// the allocation size for the vertex buffer seems to avoid the crash.
// TODO (wwylele): investigate what actually happens here.
// read position is near the end and is an out-of-bound access to the vertex buffer. This is
// probably a bug in the driver and is related to the usage of vec3<byte> attributes in the
// vertex array. Doubling the allocation size for the vertex buffer seems to avoid the
// crash.
allocate_size *= 2;
}