diff options
Diffstat (limited to 'src/gallium/drivers/v3d/v3d_context.c')
| -rw-r--r-- | src/gallium/drivers/v3d/v3d_context.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/gallium/drivers/v3d/v3d_context.c b/src/gallium/drivers/v3d/v3d_context.c index 1b148ecda2a..b9eaf7e67ec 100644 --- a/src/gallium/drivers/v3d/v3d_context.c +++ b/src/gallium/drivers/v3d/v3d_context.c @@ -123,6 +123,27 @@ v3d_context_destroy(struct pipe_context *pctx) ralloc_free(v3d); } +static void +v3d_get_sample_position(struct pipe_context *pctx, + unsigned sample_count, unsigned sample_index, + float *xy) +{ + struct v3d_context *v3d = v3d_context(pctx); + + if (sample_count <= 1) { + xy[0] = 0.5; + xy[1] = 0.5; + } else { + static const int xoffsets_v33[] = { 1, -3, 3, -1 }; + static const int xoffsets_v42[] = { -1, 3, -3, 1 }; + const int *xoffsets = (v3d->screen->devinfo.ver >= 42 ? + xoffsets_v42 : xoffsets_v33); + + xy[0] = 0.5 + xoffsets[sample_index] * .125; + xy[1] = .125 + sample_index * .25; + } +} + struct pipe_context * v3d_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags) { @@ -153,6 +174,7 @@ v3d_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags) pctx->flush = v3d_pipe_flush; pctx->set_debug_callback = v3d_set_debug_callback; pctx->invalidate_resource = v3d_invalidate_resource; + pctx->get_sample_position = v3d_get_sample_position; if (screen->devinfo.ver >= 41) { v3d41_draw_init(pctx); |