From: Rob Clark <robclark@freedesktop.org>
Date: Wed, 22 Apr 2015 17:05:53 +0000 (-0400)
Subject: freedreno/a4xx: wire up integer texture sampling
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=13527df143be1ca6e2f69bf4728f69efaebb3b13;p=mesa.git

freedreno/a4xx: wire up integer texture sampling

Similar to a3xx, the compiler needs to know the return type of the sam,
etc, instructions.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
---

diff --git a/src/gallium/drivers/freedreno/a4xx/fd4_context.h b/src/gallium/drivers/freedreno/a4xx/fd4_context.h
index 87e69fa613a..384602a2e4f 100644
--- a/src/gallium/drivers/freedreno/a4xx/fd4_context.h
+++ b/src/gallium/drivers/freedreno/a4xx/fd4_context.h
@@ -76,12 +76,15 @@ struct fd4_context {
 	/* bitmask of sampler which needs coords clamped for vertex
 	 * shader:
 	 */
-	unsigned vsaturate_s, vsaturate_t, vsaturate_r;
+	uint16_t vsaturate_s, vsaturate_t, vsaturate_r;
 
 	/* bitmask of sampler which needs coords clamped for frag
 	 * shader:
 	 */
-	unsigned fsaturate_s, fsaturate_t, fsaturate_r;
+	uint16_t fsaturate_s, fsaturate_t, fsaturate_r;
+
+	/* bitmask of integer texture samplers */
+	uint16_t vinteger_s, finteger_s;
 
 	/* some state changes require a different shader variant.  Keep
 	 * track of this so we know when we need to re-emit shader state
diff --git a/src/gallium/drivers/freedreno/a4xx/fd4_draw.c b/src/gallium/drivers/freedreno/a4xx/fd4_draw.c
index 6c54f61cc66..ae407f753fe 100644
--- a/src/gallium/drivers/freedreno/a4xx/fd4_draw.c
+++ b/src/gallium/drivers/freedreno/a4xx/fd4_draw.c
@@ -82,7 +82,8 @@ fixup_shader_state(struct fd_context *ctx, struct ir3_shader_key *key)
 		if (last_key->has_per_samp || key->has_per_samp) {
 			if ((last_key->vsaturate_s != key->vsaturate_s) ||
 					(last_key->vsaturate_t != key->vsaturate_t) ||
-					(last_key->vsaturate_r != key->vsaturate_r))
+					(last_key->vsaturate_r != key->vsaturate_r) ||
+					(last_key->vinteger_s != key->vinteger_s))
 				ctx->prog.dirty |= FD_SHADER_DIRTY_VP;
 
 			if ((last_key->fsaturate_s != key->fsaturate_s) ||
@@ -121,13 +122,16 @@ fd4_draw_vbo(struct fd_context *ctx, const struct pipe_draw_info *info)
 			// TODO set .half_precision based on render target format,
 			// ie. float16 and smaller use half, float32 use full..
 			.half_precision = !!(fd_mesa_debug & FD_DBG_FRAGHALF),
-			.has_per_samp = fd4_ctx->fsaturate || fd4_ctx->vsaturate,
+			.has_per_samp = (fd4_ctx->fsaturate || fd4_ctx->vsaturate ||
+					fd4_ctx->vinteger_s || fd4_ctx->finteger_s),
 			.vsaturate_s = fd4_ctx->vsaturate_s,
 			.vsaturate_t = fd4_ctx->vsaturate_t,
 			.vsaturate_r = fd4_ctx->vsaturate_r,
 			.fsaturate_s = fd4_ctx->fsaturate_s,
 			.fsaturate_t = fd4_ctx->fsaturate_t,
 			.fsaturate_r = fd4_ctx->fsaturate_r,
+			.vinteger_s = fd4_ctx->vinteger_s,
+			.finteger_s = fd4_ctx->finteger_s,
 		},
 		.format = fd4_emit_format(pfb->cbufs[0]),
 		.pformat = pipe_surface_format(pfb->cbufs[0]),
diff --git a/src/gallium/drivers/freedreno/a4xx/fd4_texture.c b/src/gallium/drivers/freedreno/a4xx/fd4_texture.c
index 6ba25d0816d..ff1ff8f0d34 100644
--- a/src/gallium/drivers/freedreno/a4xx/fd4_texture.c
+++ b/src/gallium/drivers/freedreno/a4xx/fd4_texture.c
@@ -205,11 +205,43 @@ fd4_sampler_view_create(struct pipe_context *pctx, struct pipe_resource *prsc,
 	return &so->base;
 }
 
+static void
+fd4_set_sampler_views(struct pipe_context *pctx, unsigned shader,
+		unsigned start, unsigned nr, struct pipe_sampler_view **views)
+{
+	struct fd_context *ctx = fd_context(pctx);
+	struct fd4_context *fd4_ctx = fd4_context(ctx);
+	struct fd_texture_stateobj *tex;
+	uint16_t integer_s = 0, *ptr;
+	int i;
+
+	fd_set_sampler_views(pctx, shader, start, nr, views);
+
+	switch (shader) {
+	case PIPE_SHADER_FRAGMENT:
+		tex = &ctx->fragtex;
+		ptr = &fd4_ctx->finteger_s;
+		break;
+	case PIPE_SHADER_VERTEX:
+		tex = &ctx->verttex;
+		ptr = &fd4_ctx->vinteger_s;
+		break;
+	default:
+		return;
+	}
+
+	for (i = 0; i < tex->num_textures; i++)
+		if (util_format_is_pure_integer(tex->textures[i]->format))
+			integer_s |= 1 << i;
+
+	*ptr = integer_s;
+}
+
 void
 fd4_texture_init(struct pipe_context *pctx)
 {
 	pctx->create_sampler_state = fd4_sampler_state_create;
 	pctx->bind_sampler_states = fd_sampler_states_bind;
 	pctx->create_sampler_view = fd4_sampler_view_create;
-	pctx->set_sampler_views = fd_set_sampler_views;
+	pctx->set_sampler_views = fd4_set_sampler_views;
 }