diff options
| author | Tapani Pälli <[email protected]> | 2014-09-12 10:36:08 +0300 |
|---|---|---|
| committer | Tapani Pälli <[email protected]> | 2014-09-15 07:33:12 +0300 |
| commit | 9bd139e4515172d98e91d6ed7364ec3ea5cf623d (patch) | |
| tree | 1b627a699d051f13cbdd4f17947cc22bb38fc024 /src/mesa | |
| parent | ce50a61d3659582d18957b4c953904ad92c417ec (diff) | |
mesa: check that uniform exists in glUniform* functions
Remap table for uniforms may contain empty entries when using explicit
uniform locations. If no active/inactive variable exists with given
location, remap table contains NULL.
v2: move remap table bounds check before existence check (Ian Romanick)
Signed-off-by: Tapani Pälli <[email protected]>
Tested-by: Erik Faye-Lund <[email protected]> (v1)
Reviewed-by: Ian Romanick <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=83574
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/main/uniform_query.cpp | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/mesa/main/uniform_query.cpp b/src/mesa/main/uniform_query.cpp index 4cd2bca01e3..1592c9bfd24 100644 --- a/src/mesa/main/uniform_query.cpp +++ b/src/mesa/main/uniform_query.cpp @@ -226,6 +226,13 @@ validate_uniform_parameters(struct gl_context *ctx, return NULL; } + /* Check that the given location is in bounds of uniform remap table. */ + if (location >= (GLint) shProg->NumUniformRemapTable) { + _mesa_error(ctx, GL_INVALID_OPERATION, "%s(location=%d)", + caller, location); + return NULL; + } + /* Page 82 (page 96 of the PDF) of the OpenGL 2.1 spec says: * * "If any of the following conditions occur, an INVALID_OPERATION @@ -239,19 +246,12 @@ validate_uniform_parameters(struct gl_context *ctx, * - if count is greater than one, and the uniform declared in the * shader is not an array variable, */ - if (location < -1) { + if (location < -1 || !shProg->UniformRemapTable[location]) { _mesa_error(ctx, GL_INVALID_OPERATION, "%s(location=%d)", caller, location); return NULL; } - /* Check that the given location is in bounds of uniform remap table. */ - if (location >= (GLint) shProg->NumUniformRemapTable) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s(location=%d)", - caller, location); - return NULL; - } - /* If the driver storage pointer in remap table is -1, we ignore silently. * * GL_ARB_explicit_uniform_location spec says: |