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-rw-r--r--src/gallium/drivers/radeonsi/si_pipe.h1
-rw-r--r--src/gallium/drivers/radeonsi/si_state.c2
-rw-r--r--src/gallium/drivers/radeonsi/si_state_shaders.c19
3 files changed, 21 insertions, 1 deletions
diff --git a/src/gallium/drivers/radeonsi/si_pipe.h b/src/gallium/drivers/radeonsi/si_pipe.h
index 847281ee2fc..42cbecbf13e 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.h
+++ b/src/gallium/drivers/radeonsi/si_pipe.h
@@ -167,6 +167,7 @@ struct si_framebuffer {
unsigned nr_samples;
unsigned log_samples;
unsigned compressed_cb_mask;
+ unsigned colorbuf_enabled_4bit;
unsigned spi_shader_col_format;
unsigned spi_shader_col_format_alpha;
unsigned spi_shader_col_format_blend;
diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index b3299a95b78..b4683c52dd0 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -2360,6 +2360,7 @@ static void si_set_framebuffer_state(struct pipe_context *ctx,
si_dec_framebuffer_counters(&sctx->framebuffer.state);
util_copy_framebuffer_state(&sctx->framebuffer.state, state);
+ sctx->framebuffer.colorbuf_enabled_4bit = 0;
sctx->framebuffer.spi_shader_col_format = 0;
sctx->framebuffer.spi_shader_col_format_alpha = 0;
sctx->framebuffer.spi_shader_col_format_blend = 0;
@@ -2382,6 +2383,7 @@ static void si_set_framebuffer_state(struct pipe_context *ctx,
si_initialize_color_surface(sctx, surf);
}
+ sctx->framebuffer.colorbuf_enabled_4bit |= 0xf << (i * 4);
sctx->framebuffer.spi_shader_col_format |=
surf->spi_shader_col_format << (i * 4);
sctx->framebuffer.spi_shader_col_format_alpha |=
diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c
index 7834f8711b6..cd4b33918ee 100644
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -867,7 +867,24 @@ static void si_shader_selector_key_hw_vs(struct si_context *sctx,
!vs->info.culldist_writemask;
/* Find out if PS is disabled. */
- bool ps_disabled = ps == NULL;
+ bool ps_disabled = true;
+ if (ps) {
+ bool ps_modifies_zs = ps->info.uses_kill ||
+ ps->info.writes_z ||
+ ps->info.writes_stencil ||
+ ps->info.writes_samplemask ||
+ si_get_alpha_test_func(sctx) != PIPE_FUNC_ALWAYS;
+
+ unsigned ps_colormask = sctx->framebuffer.colorbuf_enabled_4bit &
+ sctx->queued.named.blend->cb_target_mask;
+ if (!ps->info.properties[TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS])
+ ps_colormask &= ps->colors_written_4bit;
+
+ ps_disabled = sctx->queued.named.rasterizer->rasterizer_discard ||
+ (!ps_colormask &&
+ !ps_modifies_zs &&
+ !ps->info.writes_memory);
+ }
/* Find out which VS outputs aren't used by the PS. */
uint64_t outputs_written = vs->outputs_written;