From 7c6e88b6430b3a805f982c7f8b34d1f79a8fc09c Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Mon, 6 Jun 2016 02:01:36 +0200 Subject: [PATCH] radeonsi: allow MSAA resolving into a texture that has DCC enabled MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Since DCC is enabled almost everywhere now, it's important not to disable this fast path. Reviewed-by: Nicolai Hähnle Reviewed-by: Bas Nieuwenhuizen --- src/gallium/drivers/radeonsi/si_blit.c | 15 +++++++++++++-- src/gallium/drivers/radeonsi/si_state.c | 12 ++++++++++-- 2 files changed, 23 insertions(+), 4 deletions(-) diff --git a/src/gallium/drivers/radeonsi/si_blit.c b/src/gallium/drivers/radeonsi/si_blit.c index c28533e2c74..23ae382ff23 100644 --- a/src/gallium/drivers/radeonsi/si_blit.c +++ b/src/gallium/drivers/radeonsi/si_blit.c @@ -902,8 +902,19 @@ static bool do_hardware_msaa_resolve(struct pipe_context *ctx, info->src.box.height == dst_height && info->src.box.depth == 1 && dst->surface.level[info->dst.level].mode >= RADEON_SURF_MODE_1D && - (!dst->cmask.size || !dst->dirty_level_mask) && /* dst cannot be fast-cleared */ - !dst->dcc_offset) { + (!dst->cmask.size || !dst->dirty_level_mask)) { /* dst cannot be fast-cleared */ + /* Resolving into a surface with DCC is unsupported. Since + * it's being overwritten anyway, clear it to uncompressed. + * This is still the fastest codepath even with this clear. + */ + if (dst->dcc_offset && + dst->surface.level[info->dst.level].dcc_enabled) { + vi_dcc_clear_level(&sctx->b, dst, info->dst.level, + 0xFFFFFFFF); + dst->dirty_level_mask &= ~(1 << info->dst.level); + } + + /* Resolve directly from src to dst. */ si_blitter_begin(ctx, SI_COLOR_RESOLVE | (info->render_condition_enable ? 0 : SI_DISABLE_RENDER_COND)); util_blitter_custom_resolve_color(sctx->blitter, diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index 270b9fda079..92448a47fab 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -2443,8 +2443,16 @@ static void si_emit_framebuffer_state(struct si_context *sctx, struct r600_atom } cb_color_info = cb->cb_color_info | tex->cb_color_info; - if (tex->dcc_offset && cb->level_info->dcc_enabled) - cb_color_info |= S_028C70_DCC_ENABLE(1); + + if (tex->dcc_offset && cb->level_info->dcc_enabled) { + bool is_msaa_resolve_dst = state->cbufs[0] && + state->cbufs[0]->texture->nr_samples > 1 && + state->cbufs[1] == &cb->base && + state->cbufs[1]->texture->nr_samples <= 1; + + if (!is_msaa_resolve_dst) + cb_color_info |= S_028C70_DCC_ENABLE(1); + } radeon_set_context_reg_seq(cs, R_028C60_CB_COLOR0_BASE + i * 0x3C, sctx->b.chip_class >= VI ? 14 : 13); -- 2.30.2