r600g: EXT_texture_array support.

This adds EXT_texture_array support to r600g, it passes the piglit
array-texture test but I suspect may not be complete.

It currently requires a kernel patch to fix the CS checker to allow
these, so you need to use R600_ARRAY_TEXTURE=true for now
to enable them.

Signed-off-by: Dave Airlie <airlied@redhat.com>

6 files changed, 39 insertions, 9 deletions

diff --git a/src/gallium/drivers/r600/eg_state_inlines.h b/src/gallium/drivers/r600/eg_state_inlines.h
index f48b8a95d6..b5fcc7106f 100644
--- a/src/gallium/drivers/r600/eg_state_inlines.h
+++ b/src/gallium/drivers/r600/eg_state_inlines.h
@@ -253,9 +253,13 @@ static inline unsigned r600_tex_dim(unsigned dim)
 	default:
 	case PIPE_TEXTURE_1D:
 		return V_030000_SQ_TEX_DIM_1D;
+	case PIPE_TEXTURE_1D_ARRAY:
+		return V_030000_SQ_TEX_DIM_1D_ARRAY;
 	case PIPE_TEXTURE_2D:
 	case PIPE_TEXTURE_RECT:
 		return V_030000_SQ_TEX_DIM_2D;
+	case PIPE_TEXTURE_2D_ARRAY:
+		return V_030000_SQ_TEX_DIM_2D_ARRAY;
 	case PIPE_TEXTURE_3D:
 		return V_030000_SQ_TEX_DIM_3D;
 	case PIPE_TEXTURE_CUBE:
diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
index 79b0d02252..62d108f351 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -292,9 +292,12 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_PRIMITIVE_RESTART:
 	case PIPE_CAP_INDEP_BLEND_FUNC: /* FIXME allow this */
 	case PIPE_CAP_INSTANCED_DRAWING:
-	case PIPE_CAP_ARRAY_TEXTURES:
 		return 0;
 
+	case PIPE_CAP_ARRAY_TEXTURES:
+		/* fix once the CS checker upstream is fixed */
+		return debug_get_bool_option("R600_ARRAY_TEXTURE", FALSE);
+
 	/* Texturing. */
 	case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 	case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index acb3ef2c4d..13ccc3fdc1 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -1850,6 +1850,12 @@ static int tgsi_tex(struct r600_shader_ctx *ctx)
 		tex.coord_type_w = 1;
 	}
 
+	if (inst->Texture.Texture == TGSI_TEXTURE_1D_ARRAY) {
+		tex.coord_type_z = 0;
+		tex.src_sel_z = 1;
+	} else if (inst->Texture.Texture == TGSI_TEXTURE_2D_ARRAY)
+		tex.coord_type_z = 0;
+
 	if (inst->Texture.Texture == TGSI_TEXTURE_SHADOW1D || inst->Texture.Texture == TGSI_TEXTURE_SHADOW2D)
 		tex.src_sel_w = 2;
 
diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
index a1f83ac427..c365979e43 100644
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -402,6 +402,7 @@ static struct pipe_sampler_view *r600_create_sampler_view(struct pipe_context *c
 	uint32_t word4 = 0, yuv_format = 0, pitch = 0;
 	unsigned char swizzle[4], array_mode = 0, tile_type = 0;
 	struct r600_bo *bo[2];
+	unsigned height, depth;
 
 	if (resource == NULL)
 		return NULL;
@@ -446,6 +447,15 @@ static struct pipe_sampler_view *r600_create_sampler_view(struct pipe_context *c
 	array_mode = tmp->array_mode[0];
 	tile_type = tmp->tile_type;
 
+	height = texture->height0;
+	depth = texture->depth0;
+	if (texture->target == PIPE_TEXTURE_1D_ARRAY) {
+	        height = 1;
+		depth = texture->array_size;
+	} else if (texture->target == PIPE_TEXTURE_2D_ARRAY) {
+		depth = texture->array_size;
+	}
+
 	/* FIXME properly handle first level != 0 */
 	r600_pipe_state_add_reg(rstate, R_038000_RESOURCE0_WORD0,
 				S_038000_DIM(r600_tex_dim(texture->target)) |
@@ -454,8 +464,8 @@ static struct pipe_sampler_view *r600_create_sampler_view(struct pipe_context *c
 				S_038000_PITCH((pitch / 8) - 1) |
 				S_038000_TEX_WIDTH(texture->width0 - 1), 0xFFFFFFFF, NULL);
 	r600_pipe_state_add_reg(rstate, R_038004_RESOURCE0_WORD1,
-				S_038004_TEX_HEIGHT(texture->height0 - 1) |
-				S_038004_TEX_DEPTH(texture->depth0 - 1) |
+				S_038004_TEX_HEIGHT(height - 1) |
+				S_038004_TEX_DEPTH(depth - 1) |
 				S_038004_DATA_FORMAT(format), 0xFFFFFFFF, NULL);
 	r600_pipe_state_add_reg(rstate, R_038008_RESOURCE0_WORD2,
 				(tmp->offset[0] + r600_bo_offset(bo[0])) >> 8, 0xFFFFFFFF, bo[0]);
@@ -468,8 +478,8 @@ static struct pipe_sampler_view *r600_create_sampler_view(struct pipe_context *c
 				S_038010_BASE_LEVEL(state->u.tex.first_level), 0xFFFFFFFF, NULL);
 	r600_pipe_state_add_reg(rstate, R_038014_RESOURCE0_WORD5,
 				S_038014_LAST_LEVEL(state->u.tex.last_level) |
-				S_038014_BASE_ARRAY(0) |
-				S_038014_LAST_ARRAY(0), 0xFFFFFFFF, NULL);
+				S_038014_BASE_ARRAY(state->u.tex.first_layer) |
+				S_038014_LAST_ARRAY(state->u.tex.last_layer), 0xFFFFFFFF, NULL);
 	r600_pipe_state_add_reg(rstate, R_038018_RESOURCE0_WORD6,
 				S_038018_TYPE(V_038010_SQ_TEX_VTX_VALID_TEXTURE), 0xFFFFFFFF, NULL);
 
diff --git a/src/gallium/drivers/r600/r600_state_inlines.h b/src/gallium/drivers/r600/r600_state_inlines.h
index 7d5c9e0a05..29e12f1d46 100644
--- a/src/gallium/drivers/r600/r600_state_inlines.h
+++ b/src/gallium/drivers/r600/r600_state_inlines.h
@@ -253,9 +253,13 @@ static inline unsigned r600_tex_dim(unsigned dim)
 	default:
 	case PIPE_TEXTURE_1D:
 		return V_038000_SQ_TEX_DIM_1D;
+	case PIPE_TEXTURE_1D_ARRAY:
+		return V_038000_SQ_TEX_DIM_1D_ARRAY;
 	case PIPE_TEXTURE_2D:
 	case PIPE_TEXTURE_RECT:
 		return V_038000_SQ_TEX_DIM_2D;
+	case PIPE_TEXTURE_2D_ARRAY:
+		return V_038000_SQ_TEX_DIM_2D_ARRAY;
 	case PIPE_TEXTURE_3D:
 		return V_038000_SQ_TEX_DIM_3D;
 	case PIPE_TEXTURE_CUBE:
diff --git a/src/gallium/drivers/r600/r600_texture.c b/src/gallium/drivers/r600/r600_texture.c
index ce06d74058..095558d033 100644
--- a/src/gallium/drivers/r600/r600_texture.c
+++ b/src/gallium/drivers/r600/r600_texture.c
@@ -79,10 +79,8 @@ unsigned r600_texture_get_offset(struct r600_resource_texture *rtex,
 	switch (rtex->resource.b.b.b.target) {
 	case PIPE_TEXTURE_3D:
 	case PIPE_TEXTURE_CUBE:
-		return offset + layer * rtex->layer_size[level];
 	default:
-		assert(layer == 0);
-		return offset;
+		return offset + layer * rtex->layer_size[level];
 	}
 }
 
@@ -262,8 +260,11 @@ static void r600_setup_miptree(struct pipe_screen *screen,
 			else
 				size = layer_size * 6;
 		}
-		else
+		else if (ptex->target == PIPE_TEXTURE_3D)
 			size = layer_size * u_minify(ptex->depth0, i);
+		else
+			size = layer_size * ptex->array_size;
+
 		/* align base image and start of miptree */
 		if ((i == 0) || (i == 1))
 			offset = align(offset, r600_get_base_alignment(screen, ptex->format, array_mode));
@@ -507,6 +508,7 @@ int r600_texture_depth_flush(struct pipe_context *ctx,
 	resource.width0 = texture->width0;
 	resource.height0 = texture->height0;
 	resource.depth0 = 1;
+	resource.array_size = 1;
 	resource.last_level = texture->last_level;
 	resource.nr_samples = 0;
 	resource.usage = PIPE_USAGE_DYNAMIC;
@@ -642,6 +644,7 @@ struct pipe_transfer* r600_texture_get_transfer(struct pipe_context *ctx,
 		return &trans->transfer;
 	}
 	trans->transfer.stride = rtex->pitch_in_bytes[level];
+	trans->transfer.layer_stride = rtex->layer_size[level];
 	trans->offset = r600_texture_get_offset(rtex, level, box->z);
 	return &trans->transfer;
 }