https://bugs.freedesktop.org/show_bug.cgi?id=107989
Bug ID: 107989
Summary: GLES 3.x context: GL_INVALID_OPERATION in
glGenerateMipmap(invalid internal format GL_RED)
Product: Mesa
Version: 18.2
Hardware: All
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Mesa core
Assignee: mesa-dev@lists.freedesktop.org
Reporter: 0x416b617...@gmail.com
QA Contact: mesa-dev@lists.freedesktop.org
Trying to call glGenerateMipmap on a texture with the internal format of GL_RED
in an OpenGL ES 3.x context produces a GL_INVALID_OPERATION error. Explicitly
sized formats such as GL_R8 work, and so do other formats with no size
specified, such as GL_RGBA. Core context is not affected. Tested with the
radeonsi and llvmpipe drivers.
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