glsl_types: vec8/vec16 support

Not used in GL but 8 and 16 component vectors exist in OpenCL.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

src/compiler/builtin_type_macros.h

@@ -35,7 +35,9 @@ DECL_TYPE(void,   GL_INVALID_ENUM, GLSL_TYPE_VOID,  0, 0)
    DECL_TYPE(stype,      etype ##__VA_ARGS__,         btype, 1, 1)   \
    DECL_TYPE(vtype ## 2, etype ##_VEC2 ##__VA_ARGS__, btype, 2, 1)   \
    DECL_TYPE(vtype ## 3, etype ##_VEC3 ##__VA_ARGS__, btype, 3, 1)   \
-   DECL_TYPE(vtype ## 4, etype ##_VEC4 ##__VA_ARGS__, btype, 4, 1)
+   DECL_TYPE(vtype ## 4, etype ##_VEC4 ##__VA_ARGS__, btype, 4, 1)   \
+   DECL_TYPE(vtype ## 8,  0, btype, 8, 1)   \
+   DECL_TYPE(vtype ## 16, 0, btype, 16, 1)
 
 DECL_VEC_TYPE(bool,      bvec,   GLSL_TYPE_BOOL,    GL_BOOL)
 DECL_VEC_TYPE(int,       ivec,   GLSL_TYPE_INT,     GL_INT)

src/compiler/glsl_types.cpp

@@ -498,7 +498,12 @@ glsl_type::vec(unsigned components, const glsl_type *const ts[])
 {
    unsigned n = components;
 
-   if (n == 0 || n > 4)
+   if (components == 8)
+      n = 5;
+   else if (components == 16)
+      n = 6;
+
+   if (n == 0 || n > 6)
       return error_type;
 
    return ts[n - 1];
@@ -508,6 +513,7 @@ glsl_type::vec(unsigned components, const glsl_type *const ts[])
       static const glsl_type *const ts[] = {     \
          sname ## _type, vname ## 2_type,        \
          vname ## 3_type, vname ## 4_type,       \
+         vname ## 8_type, vname ## 16_type,      \
       };                                         \
       glsl_type::vec(components, ts);            \
    })

src/compiler/nir/nir_print.c

@@ -85,7 +85,9 @@ print_register(nir_register *reg, print_state *state)
       fprintf(fp, "r%u", reg->index);
 }
 
-static const char *sizes[] = { "error", "vec1", "vec2", "vec3", "vec4" };
+static const char *sizes[] = { "error", "vec1", "vec2", "vec3", "vec4",
+                               "error", "error", "error", "vec8",
+                               "error", "error", "error", "vec16"};
 
 static void
 print_register_decl(nir_register *reg, print_state *state)

src/compiler/nir/nir_validate.c

@@ -294,7 +294,9 @@ validate_ssa_def(nir_ssa_def *def, validate_state *state)
 
    validate_assert(state, def->parent_instr == state->instr);
 
-   validate_assert(state, def->num_components <= 4);
+   validate_assert(state, (def->num_components <= 4) ||
+                          (def->num_components == 8) ||
+                          (def->num_components == 16));
 
    list_validate(&def->uses);
    list_validate(&def->if_uses);

src/compiler/nir_types.cpp

@@ -366,15 +366,17 @@ glsl_scalar_type(enum glsl_base_type base_type)
 const glsl_type *
 glsl_vector_type(enum glsl_base_type base_type, unsigned components)
 {
-   assert(components > 1 && components <= 4);
-   return glsl_type::get_instance(base_type, components, 1);
+   const glsl_type *t = glsl_type::get_instance(base_type, components, 1);
+   assert(t != glsl_type::error_type);
+   return t;
 }
 
 const glsl_type *
 glsl_matrix_type(enum glsl_base_type base_type, unsigned rows, unsigned columns)
 {
-   assert(rows > 1 && rows <= 4 && columns >= 1 && columns <= 4);
-   return glsl_type::get_instance(base_type, rows, columns);
+   const glsl_type *t = glsl_type::get_instance(base_type, rows, columns);
+   assert(t != glsl_type::error_type);
+   return t;
 }
 
 const glsl_type *

src/compiler/spirv/spirv_to_nir.c

@@ -934,7 +934,6 @@ vtn_type_layout_std430(struct vtn_builder *b, struct vtn_type *type,
 
    case vtn_base_type_vector: {
       uint32_t comp_size = glsl_get_bit_size(type->type) / 8;
-      assert(type->length > 0 && type->length <= 4);
       unsigned align_comps = type->length == 3 ? 4 : type->length;
       *size_out = comp_size * type->length,
       *align_out = comp_size * align_comps;
@@ -1047,7 +1046,7 @@ vtn_handle_type(struct vtn_builder *b, SpvOp opcode,
 
       vtn_fail_if(base->base_type != vtn_base_type_scalar,
                   "Base type for OpTypeVector must be a scalar");
-      vtn_fail_if(elems < 2 || elems > 4,
+      vtn_fail_if((elems < 2 || elems > 4) && (elems != 8) && (elems != 16),
                   "Invalid component count for OpTypeVector");
 
       val->type->base_type = vtn_base_type_vector;