diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/library_gl.js | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/library_gl.js b/src/library_gl.js index cc39b048..6fb2643d 100644 --- a/src/library_gl.js +++ b/src/library_gl.js @@ -210,6 +210,17 @@ var LibraryGL = { }, get: function(name_, p, type) { + // Guard against user passing a null pointer. + // Note that GLES2 spec does not say anything about how passing a null pointer should be treated. + // Testing on desktop core GL 3, the application crashes on glGetIntegerv to a null pointer, but + // better to report an error instead of doing anything random. + if (!p) { +#if GL_ASSERTIONS + Module.printErr('GL_INVALID_VALUE in glGet' + type + 'v(name=' + name_ + ': Function called with null out pointer!'); +#endif + GL.recordError(0x0501 /* GL_INVALID_VALUE */); + return; + } var ret = undefined; switch(name_) { // Handle a few trivial GLES values case 0x8DFA: // GL_SHADER_COMPILER |