diff options
| -rw-r--r-- | src/mesa/main/formatquery.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/src/mesa/main/formatquery.c b/src/mesa/main/formatquery.c index 14afe6fcf02..14c69f629df 100644 --- a/src/mesa/main/formatquery.c +++ b/src/mesa/main/formatquery.c @@ -1025,6 +1025,7 @@ _mesa_GetInternalformati64v(GLenum target, GLenum internalformat, { GLint params32[16]; unsigned i; + GLsizei realSize = MIN2(bufSize, 16); GET_CURRENT_CONTEXT(ctx); @@ -1035,8 +1036,18 @@ _mesa_GetInternalformati64v(GLenum target, GLenum internalformat, return; } - _mesa_GetInternalformativ(target, internalformat, pname, bufSize, params32); + /* For SAMPLES there are cases where params needs to remain unmodified. As + * no pname can return a negative value, we fill params32 with negative + * values as reference values, that can be used to know what copy-back to + * params */ + memset(params32, -1, 16); - for (i = 0; i < bufSize; i++) - params[i] = params32[i]; + _mesa_GetInternalformativ(target, internalformat, pname, realSize, params32); + + for (i = 0; i < realSize; i++) { + /* We only copy back the values that changed */ + if (params32[i] < 0) + break; + params[i] = (GLint64) params32[i]; + } } |