r600g: move SPI setup to PS setup

SPI semantic indices for PS/VS are now static, so we don't
need to update spi config for every shaders combination. We can move
the functionality of r600_spi_update to r600(evergreen)_pipe_shader_ps.

Flatshade state is now controlled by the global FLAT_SHADE_ENA flag
instead of updating FLAT_SHADE for all inputs.

Sprite coord still requires the update of spi setup when
sprite_coord_enable is first changed from zero (enabled), and then
only when it's changed to other non-zero value (enabled for other input).
Change to zero (disabling) and back to the same value is handled via
global SPRITE_COORD_ENA.

New field "sprite_coord_enable" added to "struct r600_pipe_shader"
to track current state for the pixel shader. It's checked in the
r600_update_derived_state.

Signed-off-by: Vadim Girlin <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

4 files changed, 73 insertions, 74 deletions

diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c
index 904267da1bd..c0b057cc334 100644
--- a/src/gallium/drivers/r600/evergreen_state.c
+++ b/src/gallium/drivers/r600/evergreen_state.c
@@ -908,7 +908,7 @@ static void *evergreen_create_rs_state(struct pipe_context *ctx,
 	rstate->id = R600_PIPE_STATE_RASTERIZER;
 	if (state->flatshade_first)
 		prov_vtx = 0;
-	tmp = S_0286D4_FLAT_SHADE_ENA(1);
+	tmp = S_0286D4_FLAT_SHADE_ENA(state->flatshade);
 	if (state->sprite_coord_enable) {
 		tmp |= S_0286D4_PNT_SPRITE_ENA(1) |
 			S_0286D4_PNT_SPRITE_OVRD_X(2) |
@@ -2246,7 +2246,7 @@ void evergreen_pipe_shader_ps(struct pipe_context *ctx, struct r600_pipe_shader
 	int pos_index = -1, face_index = -1;
 	int ninterp = 0;
 	boolean have_linear = FALSE, have_centroid = FALSE, have_perspective = FALSE;
-	unsigned spi_baryc_cntl;
+	unsigned spi_baryc_cntl, sid, tmp, idx = 0;
 
 	rstate->nregs = 0;
 
@@ -2267,7 +2267,31 @@ void evergreen_pipe_shader_ps(struct pipe_context *ctx, struct r600_pipe_shader
 			if (rshader->input[i].centroid)
 				have_centroid = TRUE;
 		}
+
+		sid = rshader->input[i].spi_sid;
+
+		if (sid) {
+
+			tmp = S_028644_SEMANTIC(sid);
+
+			if (rshader->input[i].name == TGSI_SEMANTIC_COLOR ||
+					rshader->input[i].name == TGSI_SEMANTIC_BCOLOR ||
+					rshader->input[i].name == TGSI_SEMANTIC_POSITION) {
+				tmp |= S_028644_FLAT_SHADE(1);
+			}
+
+			if (rshader->input[i].name == TGSI_SEMANTIC_GENERIC &&
+					rctx->sprite_coord_enable & (1 << rshader->input[i].sid)) {
+				tmp |= S_028644_PT_SPRITE_TEX(1);
+			}
+
+			r600_pipe_state_add_reg(rstate, R_028644_SPI_PS_INPUT_CNTL_0 + idx * 4,
+					tmp, 0xFFFFFFFF, NULL, 0);
+
+			idx++;
+		}
 	}
+
 	for (i = 0; i < rshader->noutput; i++) {
 		if (rshader->output[i].name == TGSI_SEMANTIC_POSITION)
 			db_shader_control |= S_02880C_Z_EXPORT_ENABLE(1);
@@ -2368,6 +2392,8 @@ void evergreen_pipe_shader_ps(struct pipe_context *ctx, struct r600_pipe_shader
 	r600_pipe_state_add_reg(rstate,
 				R_03A200_SQ_LOOP_CONST_0, 0x01000FFF,
 				0xFFFFFFFF, NULL, 0);
+
+	shader->sprite_coord_enable = rctx->sprite_coord_enable;
 }
 
 void evergreen_pipe_shader_vs(struct pipe_context *ctx, struct r600_pipe_shader *shader)
diff --git a/src/gallium/drivers/r600/r600_pipe.h b/src/gallium/drivers/r600/r600_pipe.h
index 330e3202bab..92cb34dacad 100644
--- a/src/gallium/drivers/r600/r600_pipe.h
+++ b/src/gallium/drivers/r600/r600_pipe.h
@@ -68,7 +68,6 @@ enum r600_pipe_state_id {
 	R600_PIPE_STATE_RESOURCE,
 	R600_PIPE_STATE_POLYGON_OFFSET,
 	R600_PIPE_STATE_FETCH_SHADER,
-	R600_PIPE_STATE_SPI,
 	R600_PIPE_NSTATES
 };
 
@@ -133,6 +132,7 @@ struct r600_pipe_shader {
 	struct r600_resource		*bo_fetch;
 	struct r600_vertex_element	vertex_elements;
 	struct tgsi_token		*tokens;
+	unsigned	sprite_coord_enable;
 };
 
 struct r600_pipe_sampler_state {
@@ -215,9 +215,7 @@ struct r600_pipe_context {
 	/* shader information */
 	boolean				clamp_vertex_color;
 	boolean				clamp_fragment_color;
-	boolean				spi_dirty;
 	unsigned			sprite_coord_enable;
-	boolean				flatshade;
 	boolean				export_16bpc;
 	unsigned			alpha_ref;
 	boolean				alpha_ref_dirty;
diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
index 4b66fe11ec5..9b5fb358ace 100644
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -958,7 +958,7 @@ static void *r600_create_rs_state(struct pipe_context *ctx,
 	rstate->id = R600_PIPE_STATE_RASTERIZER;
 	if (state->flatshade_first)
 		prov_vtx = 0;
-	tmp = S_0286D4_FLAT_SHADE_ENA(1);
+	tmp = S_0286D4_FLAT_SHADE_ENA(state->flatshade);
 	if (state->sprite_coord_enable) {
 		tmp |= S_0286D4_PNT_SPRITE_ENA(1) |
 			S_0286D4_PNT_SPRITE_OVRD_X(2) |
@@ -2049,6 +2049,7 @@ void r600_pipe_shader_ps(struct pipe_context *ctx, struct r600_pipe_shader *shad
 	struct r600_shader *rshader = &shader->shader;
 	unsigned i, exports_ps, num_cout, spi_ps_in_control_0, spi_input_z, spi_ps_in_control_1, db_shader_control;
 	int pos_index = -1, face_index = -1;
+	unsigned tmp, sid;
 
 	rstate->nregs = 0;
 
@@ -2057,6 +2058,30 @@ void r600_pipe_shader_ps(struct pipe_context *ctx, struct r600_pipe_shader *shad
 			pos_index = i;
 		if (rshader->input[i].name == TGSI_SEMANTIC_FACE)
 			face_index = i;
+
+		sid = rshader->input[i].spi_sid;
+
+		tmp = S_028644_SEMANTIC(sid);
+
+		if (rshader->input[i].name == TGSI_SEMANTIC_COLOR ||
+				rshader->input[i].name == TGSI_SEMANTIC_BCOLOR ||
+				rshader->input[i].name == TGSI_SEMANTIC_POSITION) {
+			tmp |= S_028644_FLAT_SHADE(1);
+		}
+
+		if (rshader->input[i].name == TGSI_SEMANTIC_GENERIC &&
+				rctx->sprite_coord_enable & (1 << rshader->input[i].sid)) {
+			tmp |= S_028644_PT_SPRITE_TEX(1);
+		}
+
+		if (rshader->input[i].centroid)
+			tmp |= S_028644_SEL_CENTROID(1);
+
+		if (rshader->input[i].interpolate == TGSI_INTERPOLATE_LINEAR)
+			tmp |= S_028644_SEL_LINEAR(1);
+
+		r600_pipe_state_add_reg(rstate, R_028644_SPI_PS_INPUT_CNTL_0 + i * 4,
+				tmp, 0xFFFFFFFF, NULL, 0);
 	}
 
 	db_shader_control = 0;
@@ -2134,6 +2159,8 @@ void r600_pipe_shader_ps(struct pipe_context *ctx, struct r600_pipe_shader *shad
 	r600_pipe_state_add_reg(rstate,
 				R_03E200_SQ_LOOP_CONST_0, 0x01000FFF,
 				0xFFFFFFFF, NULL, 0);
+
+	shader->sprite_coord_enable = rctx->sprite_coord_enable;
 }
 
 void r600_pipe_shader_vs(struct pipe_context *ctx, struct r600_pipe_shader *shader)
diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
index 3d0345addce..b81fba10467 100644
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -34,8 +34,6 @@
 #include "r600_pipe.h"
 #include "r600d.h"
 
-static void r600_spi_update(struct r600_pipe_context *rctx);
-
 static bool r600_conv_pipe_prim(unsigned pprim, unsigned *prim)
 {
 	static const int prim_conv[] = {
@@ -103,8 +101,9 @@ void r600_bind_rs_state(struct pipe_context *ctx, void *state)
 
 	rctx->clamp_vertex_color = rs->clamp_vertex_color;
 	rctx->clamp_fragment_color = rs->clamp_fragment_color;
-	rctx->flatshade = rs->flatshade;
+
 	rctx->sprite_coord_enable = rs->sprite_coord_enable;
+
 	rctx->rasterizer = rs;
 
 	rctx->states[rs->rstate.id] = &rs->rstate;
@@ -115,8 +114,6 @@ void r600_bind_rs_state(struct pipe_context *ctx, void *state)
 	} else {
 		r600_polygon_offset_update(rctx);
 	}
-	if (rctx->ps_shader && rctx->vs_shader)
-		rctx->spi_dirty = true;
 }
 
 void r600_delete_rs_state(struct pipe_context *ctx, void *state)
@@ -280,7 +277,6 @@ void r600_bind_ps_shader(struct pipe_context *ctx, void *state)
 		r600_context_pipe_state_set(&rctx->ctx, &rctx->ps_shader->rstate);
 	}
 	if (rctx->ps_shader && rctx->vs_shader) {
-		rctx->spi_dirty = true;
 		r600_adjust_gprs(rctx);
 	}
 }
@@ -295,7 +291,6 @@ void r600_bind_vs_shader(struct pipe_context *ctx, void *state)
 		r600_context_pipe_state_set(&rctx->ctx, &rctx->vs_shader->rstate);
 	}
 	if (rctx->ps_shader && rctx->vs_shader) {
-		rctx->spi_dirty = true;
 		r600_adjust_gprs(rctx);
 	}
 }
@@ -343,63 +338,6 @@ static void r600_update_alpha_ref(struct r600_pipe_context *rctx)
 	rctx->alpha_ref_dirty = false;
 }
 
-/* FIXME optimize away spi update when it's not needed */
-static void r600_spi_block_init(struct r600_pipe_context *rctx, struct r600_pipe_state *rstate)
-{
-	int i;
-	rstate->nregs = 0;
-	rstate->id = R600_PIPE_STATE_SPI;
-	for (i = 0; i < 32; i++) {
-		r600_pipe_state_add_reg(rstate, R_028644_SPI_PS_INPUT_CNTL_0 + i * 4, 0, 0xFFFFFFFF, NULL, 0);
-	}
-}
-
-static void r600_spi_update(struct r600_pipe_context *rctx)
-{
-	struct r600_pipe_shader *shader = rctx->ps_shader;
-	struct r600_pipe_state *rstate = &rctx->spi;
-	struct r600_shader *rshader = &shader->shader;
-	unsigned i, tmp, sid;
-
-	if (rctx->spi.id == 0)
-		r600_spi_block_init(rctx, &rctx->spi);
-
-	rstate->nregs = 0;
-	for (i = 0; i < rshader->ninput; i++) {
-
-		sid = rshader->input[i].spi_sid;
-
-		if (!sid && (rctx->chip_class >= EVERGREEN))
-			continue;
-
-		tmp = S_028644_SEMANTIC(sid);
-
-		if (rshader->input[i].name == TGSI_SEMANTIC_COLOR ||
-		    rshader->input[i].name == TGSI_SEMANTIC_BCOLOR ||
-		    rshader->input[i].name == TGSI_SEMANTIC_POSITION) {
-			tmp |= S_028644_FLAT_SHADE(rctx->flatshade);
-		}
-
-		if (rshader->input[i].name == TGSI_SEMANTIC_GENERIC &&
-		    rctx->sprite_coord_enable & (1 << rshader->input[i].sid)) {
-			tmp |= S_028644_PT_SPRITE_TEX(1);
-		}
-
-		if (rctx->chip_class < EVERGREEN) {
-			if (rshader->input[i].centroid)
-				tmp |= S_028644_SEL_CENTROID(1);
-
-			if (rshader->input[i].interpolate == TGSI_INTERPOLATE_LINEAR)
-				tmp |= S_028644_SEL_LINEAR(1);
-		}
-
-		r600_pipe_state_mod_reg(rstate, tmp);
-	}
-
-	rctx->spi_dirty = false;
-	r600_context_pipe_state_set(&rctx->ctx, rstate);
-}
-
 void r600_set_constant_buffer(struct pipe_context *ctx, uint shader, uint index,
 			      struct pipe_resource *buffer)
 {
@@ -552,6 +490,8 @@ static int r600_shader_rebuild(struct pipe_context * ctx, struct r600_pipe_shade
 
 static void r600_update_derived_state(struct r600_pipe_context *rctx)
 {
+	struct pipe_context * ctx = (struct pipe_context*)rctx;
+
 	if (!rctx->blitter->running) {
 		if (rctx->have_depth_fb || rctx->have_depth_texture)
 			r600_flush_depth_textures(rctx);
@@ -571,13 +511,21 @@ static void r600_update_derived_state(struct r600_pipe_context *rctx)
 		r600_shader_rebuild(&rctx->context, rctx->ps_shader);
 	}
 
-	if (rctx->spi_dirty) {
-		r600_spi_update(rctx);
-	}
-
 	if (rctx->alpha_ref_dirty) {
 		r600_update_alpha_ref(rctx);
 	}
+
+	if (rctx->ps_shader && rctx->sprite_coord_enable &&
+		(rctx->ps_shader->sprite_coord_enable != rctx->sprite_coord_enable)) {
+
+		if (rctx->chip_class >= EVERGREEN)
+			evergreen_pipe_shader_ps(ctx, rctx->ps_shader);
+		else
+			r600_pipe_shader_ps(ctx, rctx->ps_shader);
+
+		r600_context_pipe_state_set(&rctx->ctx, &rctx->ps_shader->rstate);
+	}
+
 }
 
 void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *dinfo)