diff options
| author | Chia-I Wu <olv@lunarg.com> | 2010-12-04 21:42:51 +0800 |
|---|---|---|
| committer | Chia-I Wu <olv@lunarg.com> | 2010-12-04 23:46:38 +0800 |
| commit | 859106f196ade77f59f8787b071739901cd1a843 (patch) | |
| tree | 632ca04f16bcf6ad64614b3cf86b278181591099 /src/gallium/state_trackers/vega/vg_context.c | |
| parent | 0ee73edeccd21034e03e9e43dd0d09fa6fbf7842 (diff) | |
st/vega: Fix pipe blend state for various blend modes.
rgb_src_factor and rgb_dst_factor should be PIPE_BLENDFACTOR_ONE for
VG_BLEND_SRC_IN and VG_BLEND_DST_IN respectively. VG_BLEND_SRC_OVER can
be supported only when the fb has no alpha channel. VG_BLEND_DST_OVER
and VG_BLEND_ADDITIVE have to be supported with a shader.
Note that Porter-Duff blending rules assume premultiplied alpha.
Diffstat (limited to 'src/gallium/state_trackers/vega/vg_context.c')
| -rw-r--r-- | src/gallium/state_trackers/vega/vg_context.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/vega/vg_context.c b/src/gallium/state_trackers/vega/vg_context.c index 5479edc861..0844012cc3 100644 --- a/src/gallium/state_trackers/vega/vg_context.c +++ b/src/gallium/state_trackers/vega/vg_context.c @@ -400,6 +400,10 @@ void vg_validate_state(struct vg_context *ctx) if (vg_context_update_depth_stencil_rb(ctx, stfb->width, stfb->height)) ctx->state.dirty |= DEPTH_STENCIL_DIRTY; + /* blend state depends on fb format */ + if (ctx->state.dirty & FRAMEBUFFER_DIRTY) + ctx->state.dirty |= BLEND_DIRTY; + renderer_validate(ctx->renderer, ctx->state.dirty, ctx->draw_buffer, &ctx->state.vg); |