lima: add cubemap support

Signed-off-by: Arno Messiaen <arnomessiaen@gmail.com>
Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Reviewed-by: Erico Nunes <nunes.erico@gmail.com>

6 files changed, 45 insertions, 8 deletions

diff --git a/src/gallium/drivers/lima/ir/pp/codegen.c b/src/gallium/drivers/lima/ir/pp/codegen.c
index b2947f300f2..14c2617e3e8 100644
--- a/src/gallium/drivers/lima/ir/pp/codegen.c
+++ b/src/gallium/drivers/lima/ir/pp/codegen.c
@@ -90,6 +90,10 @@ static void ppir_codegen_encode_varying(ppir_node *node, void *code)
             f->imm.source_type = 3;
             f->imm.perspective = 1;
             break;
+         case ppir_op_load_coords:
+            /* num_components == 3 implies cubemap as we don't support 3D textures */
+            f->imm.source_type = num_components == 3 ? 2 : 0;
+            break;
          default:
             break;
       }
@@ -99,7 +103,13 @@ static void ppir_codegen_encode_varying(ppir_node *node, void *code)
       f->reg.mask = dest->write_mask << (index & 0x3);
 
       if (load->num_src) {
-         f->reg.source_type = 1;
+         /* num_components == 3 implies cubemap as we don't support 3D textures */
+         if (num_components == 3) {
+            f->reg.source_type = 2;
+            f->reg.perspective = 1;
+         } else {
+            f->reg.source_type = 1;
+         }
          ppir_src *src = &load->src;
          index = ppir_target_get_src_reg_index(src);
          f->reg.source = index >> 2;
@@ -117,7 +127,20 @@ static void ppir_codegen_encode_texld(ppir_node *node, void *code)
 
    f->index = ldtex->sampler;
    f->lod_bias_en = 0;
-   f->type = ppir_codegen_sampler_type_2d;
+
+   switch (ldtex->sampler_dim) {
+   case GLSL_SAMPLER_DIM_2D:
+   case GLSL_SAMPLER_DIM_RECT:
+   case GLSL_SAMPLER_DIM_EXTERNAL:
+      f->type = ppir_codegen_sampler_type_2d;
+      break;
+   case GLSL_SAMPLER_DIM_CUBE:
+      f->type = ppir_codegen_sampler_type_cube;
+      break;
+   default:
+      break;
+   }
+
    f->offset_en = 0;
    f->unknown_2 = 0x39001;
 }
diff --git a/src/gallium/drivers/lima/ir/pp/nir.c b/src/gallium/drivers/lima/ir/pp/nir.c
index 6baf4ec93bf..62e0808c1c7 100644
--- a/src/gallium/drivers/lima/ir/pp/nir.c
+++ b/src/gallium/drivers/lima/ir/pp/nir.c
@@ -461,6 +461,7 @@ static ppir_node *ppir_emit_tex(ppir_block *block, nir_instr *ni)
 
    switch (instr->sampler_dim) {
    case GLSL_SAMPLER_DIM_2D:
+   case GLSL_SAMPLER_DIM_CUBE:
    case GLSL_SAMPLER_DIM_RECT:
    case GLSL_SAMPLER_DIM_EXTERNAL:
       break;
diff --git a/src/gallium/drivers/lima/lima_draw.c b/src/gallium/drivers/lima/lima_draw.c
index 7706ee112aa..9753343409e 100644
--- a/src/gallium/drivers/lima/lima_draw.c
+++ b/src/gallium/drivers/lima/lima_draw.c
@@ -290,7 +290,7 @@ lima_pack_reload_plbu_cmd(struct lima_context *ctx)
    memset(td, 0, lima_min_tex_desc_size);
    lima_texture_desc_set_res(ctx, td, fb->base.cbufs[0]->texture, 0, 0);
    td->unnorm_coords = 1;
-   td->texture_2d = 1;
+   td->texture_type = LIMA_TEXTURE_TYPE_2D;
    td->min_img_filter_nearest = 1;
    td->mag_img_filter_nearest = 1;
    td->wrap_s_clamp_to_edge = 1;
diff --git a/src/gallium/drivers/lima/lima_screen.c b/src/gallium/drivers/lima/lima_screen.c
index cd9122672b6..30b199e777f 100644
--- a/src/gallium/drivers/lima/lima_screen.c
+++ b/src/gallium/drivers/lima/lima_screen.c
@@ -273,6 +273,7 @@ lima_screen_is_format_supported(struct pipe_screen *pscreen,
    case PIPE_TEXTURE_1D:
    case PIPE_TEXTURE_2D:
    case PIPE_TEXTURE_RECT:
+   case PIPE_TEXTURE_CUBE:
       break;
    default:
       return false;
diff --git a/src/gallium/drivers/lima/lima_texture.c b/src/gallium/drivers/lima/lima_texture.c
index b25d84ec20f..39433c05801 100644
--- a/src/gallium/drivers/lima/lima_texture.c
+++ b/src/gallium/drivers/lima/lima_texture.c
@@ -124,8 +124,17 @@ lima_update_tex_desc(struct lima_context *ctx, struct lima_sampler_state *sample
 
    memset(desc, 0, desc_size);
 
-   /* 2D texture */
-   desc->texture_2d = 1;
+   switch (texture->base.target) {
+   case PIPE_TEXTURE_2D:
+   case PIPE_TEXTURE_RECT:
+      desc->texture_type = LIMA_TEXTURE_TYPE_2D;
+      break;
+   case PIPE_TEXTURE_CUBE:
+      desc->texture_type = LIMA_TEXTURE_TYPE_CUBE;
+      break;
+   default:
+      break;
+   }
 
    if (!sampler->base.normalized_coords)
       desc->unnorm_coords = 1;
diff --git a/src/gallium/drivers/lima/lima_texture.h b/src/gallium/drivers/lima/lima_texture.h
index e9b896763ea..7f4b9ee5330 100644
--- a/src/gallium/drivers/lima/lima_texture.h
+++ b/src/gallium/drivers/lima/lima_texture.h
@@ -27,6 +27,9 @@
 
 #define lima_min_tex_desc_size 64
 
+#define LIMA_TEXTURE_TYPE_2D   2
+#define LIMA_TEXTURE_TYPE_CUBE 5
+
 typedef struct __attribute__((__packed__)) {
    /* Word 0 */
    uint32_t format : 6;
@@ -39,9 +42,9 @@ typedef struct __attribute__((__packed__)) {
    /* Word 1-3 */
    uint32_t unknown_1_1: 7;
    uint32_t unnorm_coords: 1;
-   uint32_t unknown_1_2: 2;
-   uint32_t texture_2d: 1;
-   uint32_t unknown_1_3: 13;
+   uint32_t unknown_1_2: 1;
+   uint32_t texture_type: 3;
+   uint32_t unknown_1_3: 12;
    uint32_t miplevels: 4;
    uint32_t min_mipfilter_1: 9; /* 0x0 for linear, 0x1ff for nearest */
    uint32_t unknown_2_1: 3;