Commit b758eed9 authored by Marek Olšák's avatar Marek Olšák

radeonsi: make sure that blend state != NULL and remove all NULL checking

Reviewed-by: Pierre-Eric Pelloux-Prayer's avatarPierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
parent 8b68511e
......@@ -340,6 +340,13 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe)
return &ctx->base;
}
void *util_blitter_get_noop_blend_state(struct blitter_context *blitter)
{
struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
return ctx->blend[0][0];
}
static void bind_vs_pos_only(struct blitter_context_priv *ctx,
unsigned num_so_channels)
{
......
......@@ -154,6 +154,8 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe);
void util_blitter_destroy(struct blitter_context *blitter);
void util_blitter_cache_all_shaders(struct blitter_context *blitter);
void *util_blitter_get_noop_blend_state(struct blitter_context *blitter);
/**
* Return the pipe context associated with a blitter context.
......
......@@ -543,6 +543,10 @@ static struct pipe_context *si_create_context(struct pipe_screen *screen,
goto fail;
sctx->blitter->skip_viewport_restore = true;
/* Some states are expected to be always non-NULL. */
sctx->noop_blend = util_blitter_get_noop_blend_state(sctx->blitter);
sctx->queued.named.blend = sctx->noop_blend;
si_init_draw_functions(sctx);
si_initialize_prim_discard_tunables(sctx);
}
......
......@@ -886,6 +886,7 @@ struct si_context {
void (*emit_cache_flush)(struct si_context *ctx);
struct blitter_context *blitter;
void *noop_blend;
void *custom_dsa_flush;
void *custom_blend_resolve;
void *custom_blend_fmask_decompress;
......
......@@ -82,19 +82,17 @@ static void si_emit_cb_render_state(struct si_context *sctx)
struct si_state_blend *blend = sctx->queued.named.blend;
/* CB_COLORn_INFO.FORMAT=INVALID should disable unbound colorbuffers,
* but you never know. */
uint32_t cb_target_mask = sctx->framebuffer.colorbuf_enabled_4bit;
uint32_t cb_target_mask = sctx->framebuffer.colorbuf_enabled_4bit &
blend->cb_target_mask;
unsigned i;
if (blend)
cb_target_mask &= blend->cb_target_mask;
/* Avoid a hang that happens when dual source blending is enabled
* but there is not enough color outputs. This is undefined behavior,
* so disable color writes completely.
*
* Reproducible with Unigine Heaven 4.0 and drirc missing.
*/
if (blend && blend->dual_src_blend &&
if (blend->dual_src_blend &&
sctx->ps_shader.cso &&
(sctx->ps_shader.cso->info.colors_written & 0x3) != 0x3)
cb_target_mask = 0;
......@@ -119,8 +117,7 @@ static void si_emit_cb_render_state(struct si_context *sctx)
* Alternatively, we can set CB_COLORi_DCC_CONTROL.OVERWRITE_-
* COMBINER_DISABLE, but that would be more complicated.
*/
bool oc_disable = blend &&
blend->dcc_msaa_corruption_4bit & cb_target_mask &&
bool oc_disable = blend->dcc_msaa_corruption_4bit & cb_target_mask &&
sctx->framebuffer.nr_samples >= 2;
unsigned watermark = sctx->framebuffer.dcc_overwrite_combiner_watermark;
......@@ -681,21 +678,19 @@ static void si_bind_blend_state(struct pipe_context *ctx, void *state)
struct si_state_blend *old_blend = sctx->queued.named.blend;
struct si_state_blend *blend = (struct si_state_blend *)state;
if (!state)
return;
if (!blend)
blend = (struct si_state_blend *)sctx->noop_blend;
si_pm4_bind_state(sctx, blend, state);
si_pm4_bind_state(sctx, blend, blend);
if (!old_blend ||
old_blend->cb_target_mask != blend->cb_target_mask ||
if (old_blend->cb_target_mask != blend->cb_target_mask ||
old_blend->dual_src_blend != blend->dual_src_blend ||
(old_blend->blend_enable_4bit != blend->blend_enable_4bit &&
sctx->framebuffer.nr_samples >= 2 &&
sctx->screen->dcc_msaa_allowed))
si_mark_atom_dirty(sctx, &sctx->atoms.s.cb_render_state);
if (!old_blend ||
old_blend->cb_target_mask != blend->cb_target_mask ||
if (old_blend->cb_target_mask != blend->cb_target_mask ||
old_blend->alpha_to_coverage != blend->alpha_to_coverage ||
old_blend->alpha_to_one != blend->alpha_to_one ||
old_blend->dual_src_blend != blend->dual_src_blend ||
......@@ -704,15 +699,13 @@ static void si_bind_blend_state(struct pipe_context *ctx, void *state)
sctx->do_update_shaders = true;
if (sctx->screen->dpbb_allowed &&
(!old_blend ||
old_blend->alpha_to_coverage != blend->alpha_to_coverage ||
(old_blend->alpha_to_coverage != blend->alpha_to_coverage ||
old_blend->blend_enable_4bit != blend->blend_enable_4bit ||
old_blend->cb_target_enabled_4bit != blend->cb_target_enabled_4bit))
si_mark_atom_dirty(sctx, &sctx->atoms.s.dpbb_state);
if (sctx->screen->has_out_of_order_rast &&
(!old_blend ||
(old_blend->blend_enable_4bit != blend->blend_enable_4bit ||
((old_blend->blend_enable_4bit != blend->blend_enable_4bit ||
old_blend->cb_target_enabled_4bit != blend->cb_target_enabled_4bit ||
old_blend->commutative_4bit != blend->commutative_4bit ||
old_blend->logicop_enable != blend->logicop_enable)))
......@@ -3543,11 +3536,7 @@ static bool si_out_of_order_rasterization(struct si_context *sctx)
unsigned colormask = sctx->framebuffer.colorbuf_enabled_4bit;
if (blend) {
colormask &= blend->cb_target_enabled_4bit;
} else {
colormask = 0;
}
colormask &= blend->cb_target_enabled_4bit;
/* Conservative: No logic op. */
if (colormask && blend->logicop_enable)
......
......@@ -483,7 +483,7 @@ void si_emit_dpbb_state(struct si_context *sctx)
assert(sctx->chip_class >= GFX9);
if (!sscreen->dpbb_allowed || !blend || !dsa || sctx->dpbb_force_off) {
if (!sscreen->dpbb_allowed || !dsa || sctx->dpbb_force_off) {
si_emit_dpbb_disable(sctx);
return;
}
......
......@@ -1759,13 +1759,11 @@ static void si_shader_selector_key_hw_vs(struct si_context *sctx,
/* Find out if PS is disabled. */
bool ps_disabled = true;
if (ps) {
const struct si_state_blend *blend = sctx->queued.named.blend;
bool alpha_to_coverage = blend && blend->alpha_to_coverage;
bool ps_modifies_zs = ps->info.uses_kill ||
ps->info.writes_z ||
ps->info.writes_stencil ||
ps->info.writes_samplemask ||
alpha_to_coverage ||
sctx->queued.named.blend->alpha_to_coverage ||
si_get_alpha_test_func(sctx) != PIPE_FUNC_ALWAYS;
unsigned ps_colormask = si_get_total_colormask(sctx);
......@@ -1904,35 +1902,33 @@ static inline void si_shader_selector_key(struct pipe_context *ctx,
sel->info.colors_written == 0x1)
key->part.ps.epilog.last_cbuf = MAX2(sctx->framebuffer.state.nr_cbufs, 1) - 1;
if (blend) {
/* Select the shader color format based on whether
* blending or alpha are needed.
*/
key->part.ps.epilog.spi_shader_col_format =
(blend->blend_enable_4bit & blend->need_src_alpha_4bit &
sctx->framebuffer.spi_shader_col_format_blend_alpha) |
(blend->blend_enable_4bit & ~blend->need_src_alpha_4bit &
sctx->framebuffer.spi_shader_col_format_blend) |
(~blend->blend_enable_4bit & blend->need_src_alpha_4bit &
sctx->framebuffer.spi_shader_col_format_alpha) |
(~blend->blend_enable_4bit & ~blend->need_src_alpha_4bit &
sctx->framebuffer.spi_shader_col_format);
key->part.ps.epilog.spi_shader_col_format &= blend->cb_target_enabled_4bit;
/* The output for dual source blending should have
* the same format as the first output.
*/
if (blend->dual_src_blend)
key->part.ps.epilog.spi_shader_col_format |=
(key->part.ps.epilog.spi_shader_col_format & 0xf) << 4;
} else
key->part.ps.epilog.spi_shader_col_format = sctx->framebuffer.spi_shader_col_format;
/* Select the shader color format based on whether
* blending or alpha are needed.
*/
key->part.ps.epilog.spi_shader_col_format =
(blend->blend_enable_4bit & blend->need_src_alpha_4bit &
sctx->framebuffer.spi_shader_col_format_blend_alpha) |
(blend->blend_enable_4bit & ~blend->need_src_alpha_4bit &
sctx->framebuffer.spi_shader_col_format_blend) |
(~blend->blend_enable_4bit & blend->need_src_alpha_4bit &
sctx->framebuffer.spi_shader_col_format_alpha) |
(~blend->blend_enable_4bit & ~blend->need_src_alpha_4bit &
sctx->framebuffer.spi_shader_col_format);
key->part.ps.epilog.spi_shader_col_format &= blend->cb_target_enabled_4bit;
/* The output for dual source blending should have
* the same format as the first output.
*/
if (blend->dual_src_blend) {
key->part.ps.epilog.spi_shader_col_format |=
(key->part.ps.epilog.spi_shader_col_format & 0xf) << 4;
}
/* If alpha-to-coverage is enabled, we have to export alpha
* even if there is no color buffer.
*/
if (!(key->part.ps.epilog.spi_shader_col_format & 0xf) &&
blend && blend->alpha_to_coverage)
blend->alpha_to_coverage)
key->part.ps.epilog.spi_shader_col_format |= V_028710_SPI_SHADER_32_AR;
/* On GFX6 and GFX7 except Hawaii, the CB doesn't clamp outputs
......@@ -1957,10 +1953,8 @@ static inline void si_shader_selector_key(struct pipe_context *ctx,
key->part.ps.prolog.color_two_side = rs->two_side && sel->info.colors_read;
key->part.ps.prolog.flatshade_colors = rs->flatshade && sel->info.colors_read;
if (sctx->queued.named.blend) {
key->part.ps.epilog.alpha_to_one = sctx->queued.named.blend->alpha_to_one &&
rs->multisample_enable;
}
key->part.ps.epilog.alpha_to_one = blend->alpha_to_one &&
rs->multisample_enable;
key->part.ps.prolog.poly_stipple = rs->poly_stipple_enable && is_poly;
key->part.ps.epilog.poly_line_smoothing = ((is_poly && rs->poly_smooth) ||
......
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