Mesa (master): r600g: enable vertex samplers.

[Dave Airlie]

Module: Mesa
Branch: master
Commit: ea1d818b58d6ff9e4cd0c40eb865beabde8f268c
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=ea1d818b58d6ff9e4cd0c40eb865beabde8f268c

Author: Dave Airlie <airlied at redhat.com>
Date:   Mon Oct 11 11:58:27 2010 +1000

r600g: enable vertex samplers.

We need to move the texture sampler resources out of the range of the vertex attribs.

We could probably improve this using an allocator but this is the simple answer for now.

makes mesa-demos/src/glsl/vert-tex work.

---

 src/gallium/drivers/r600/evergreen_state.c |   11 ++++++++---
 src/gallium/drivers/r600/r600_pipe.c       |    2 +-
 src/gallium/drivers/r600/r600_shader.c     |    6 ++++--
 src/gallium/drivers/r600/r600_state.c      |   11 ++++++++---
 4 files changed, 21 insertions(+), 9 deletions(-)

diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c
index bdd5481..323509f 100644
--- a/src/gallium/drivers/r600/evergreen_state.c
+++ b/src/gallium/drivers/r600/evergreen_state.c
@@ -480,8 +480,14 @@ static struct pipe_sampler_view *evergreen_create_sampler_view(struct pipe_conte
 static void evergreen_set_vs_sampler_view(struct pipe_context *ctx, unsigned count,
 					struct pipe_sampler_view **views)
 {
-	/* TODO */
-	assert(1);
+	struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
+	struct r600_pipe_sampler_view **resource = (struct r600_pipe_sampler_view **)views;
+
+	for (int i = 0; i < count; i++) {
+		if (resource[i]) {
+			evergreen_context_pipe_state_set_vs_resource(&rctx->ctx, &resource[i]->state, i + PIPE_MAX_ATTRIBS);
+		}
+	}
 }
 
 static void evergreen_set_ps_sampler_view(struct pipe_context *ctx, unsigned count,
@@ -523,7 +529,6 @@ static void evergreen_bind_vs_sampler(struct pipe_context *ctx, unsigned count,
 	struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 	struct r600_pipe_state **rstates = (struct r600_pipe_state **)states;
 
-	/* TODO implement */
 	for (int i = 0; i < count; i++) {
 		evergreen_context_pipe_state_set_vs_sampler(&rctx->ctx, rstates[i], i);
 	}
diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
index 0589652..832a2b2 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -257,7 +257,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 		return 14;
 	case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
 		/* FIXME allow this once infrastructure is there */
-		return 0;
+		return 16;
 	case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 	case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 		return 16;
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 366d5d9..d22325e 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -1866,8 +1866,10 @@ static int tgsi_tex(struct r600_shader_ctx *ctx)
 
 	memset(&tex, 0, sizeof(struct r600_bc_tex));
 	tex.inst = opcode;
-	tex.resource_id = ctx->file_offset[inst->Src[1].Register.File] + inst->Src[1].Register.Index;
-	tex.sampler_id = tex.resource_id;
+	tex.sampler_id = ctx->file_offset[inst->Src[1].Register.File] + inst->Src[1].Register.Index;
+	tex.resource_id = tex.sampler_id;
+	if (ctx->shader->processor_type == TGSI_PROCESSOR_VERTEX)
+		tex.resource_id += PIPE_MAX_ATTRIBS;
 	tex.src_gpr = src_gpr;
 	tex.dst_gpr = ctx->file_offset[inst->Dst[0].Register.File] + inst->Dst[0].Register.Index;
 	tex.dst_sel_x = (inst->Dst[0].Register.WriteMask & 1) ? 0 : 7;
diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
index 7ceedf6..29d9d15 100644
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -683,8 +683,14 @@ static struct pipe_sampler_view *r600_create_sampler_view(struct pipe_context *c
 static void r600_set_vs_sampler_view(struct pipe_context *ctx, unsigned count,
 					struct pipe_sampler_view **views)
 {
-	/* TODO */
-	assert(1);
+	struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
+	struct r600_pipe_sampler_view **resource = (struct r600_pipe_sampler_view **)views;
+
+	for (int i = 0; i < count; i++) {
+		if (resource[i]) {
+			r600_context_pipe_state_set_ps_resource(&rctx->ctx, &resource[i]->state, i + PIPE_MAX_ATTRIBS);
+		}
+	}
 }
 
 static void r600_set_ps_sampler_view(struct pipe_context *ctx, unsigned count,
@@ -726,7 +732,6 @@ static void r600_bind_vs_sampler(struct pipe_context *ctx, unsigned count, void
 	struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 	struct r600_pipe_state **rstates = (struct r600_pipe_state **)states;
 
-	/* TODO implement */
 	for (int i = 0; i < count; i++) {
 		r600_context_pipe_state_set_vs_sampler(&rctx->ctx, rstates[i], i);
 	}