On Tuesday, 2017-06-06 18:18:31 +0100, Daniel Stone wrote:
> Since the EGL attributes are signed integers, a straight OR would
> also perform sign extension,
>
> Fixes: 6f10e7c37a ("egl/dri2: Create EGLImages with dmabuf modifiers")
> Cc: Varad Gautam <[email protected]>
> Signed-off-by: Daniel Stone <[email protected]>
> ---
> src/egl/drivers/dri2/egl_dri2.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
> index d31a0bf8e0..7175e827c9 100644
> --- a/src/egl/drivers/dri2/egl_dri2.c
> +++ b/src/egl/drivers/dri2/egl_dri2.c
> @@ -2278,9 +2278,8 @@ dri2_create_image_dma_buf(_EGLDisplay *disp,
> _EGLContext *ctx,
> * will be present in attrs.DMABufPlaneModifiersLo[0] and
> * attrs.DMABufPlaneModifiersHi[0] */
> if (attrs.DMABufPlaneModifiersLo[0].IsPresent) {
> - modifier =
> - ((uint64_t) attrs.DMABufPlaneModifiersHi[0].Value << 32) |
> - attrs.DMABufPlaneModifiersLo[0].Value;
> + modifier = (uint64_t) attrs.DMABufPlaneModifiersHi[0].Value << 32;
> + modifier |= (uint64_t) (attrs.DMABufPlaneModifiersLo[0].Value &
> 0xffffffff);
To be clear, the fix is to cast Lo before OR'ing it, right?
The rest is just aesthetic?
Reviewed-by: Eric Engestrom <[email protected]>
> has_modifier = true;
> } else {
> modifier = DRM_FORMAT_MOD_INVALID;
> --
> 2.13.0
>
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