diff options
Diffstat (limited to 'src/mesa/main/shaderapi.c')
| -rw-r--r-- | src/mesa/main/shaderapi.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c index 86ce0bc5fdf..0c38cea2555 100644 --- a/src/mesa/main/shaderapi.c +++ b/src/mesa/main/shaderapi.c @@ -1003,9 +1003,18 @@ shader_source(struct gl_shader *sh, const GLchar *source) { assert(sh); - /* free old shader source string and install new one */ - free((void *)sh->Source); - sh->Source = source; + if (sh->CompileStatus == GL_TRUE && !sh->FallbackSource) { + /* If shader was previously compiled back-up the source in case of cache + * fallback. + */ + sh->FallbackSource = sh->Source; + sh->Source = source; + } else { + /* free old shader source string and install new one */ + free((void *)sh->Source); + sh->Source = source; + } + #ifdef DEBUG sh->SourceChecksum = util_hash_crc32(sh->Source, strlen(sh->Source)); #endif |