https://bugs.freedesktop.org/show_bug.cgi?id=93053
Bug ID: 93053
Summary: GL_PROGRAM_BINARY_LENGTH always reports 0
Product: Mesa
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: major
Priority: medium
Component: Mesa core
Assignee: mesa-dev@lists.freedesktop.org
Reporter: weilercd...@gmail.com
QA Contact: mesa-dev@lists.freedesktop.org
shaderapi.c always stores 0 for GL_PROGRAM_BINARY_LENGTH when placing a
ProgramParameter call. This unfortunately is not a valid value to store there
unless GL_LINK_STATUS is GL_FALSE. The size returned by this call should be the
amount of bytes required to place a call to GetProgramBinary. There seems to be
no way in mesa to safely obtain a program binary without trying
GetProgramBinary in a loop, reallocating the buffer as necessary to store the
binary until it succeeds. Unfortunately there is no way to distinguish if the
function call is failing because of lack of memory or because of something
else.
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