X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fglsl%2Fast.h;h=730027177e8912f9bb22047c844f6082980ca3b6;hb=7214451bdce6d553620d2b9b3f1f89d14b113357;hp=2b9b7861b0fb4b02f65c222e5dc2621bc1c280cf;hpb=aaa31bf8f44e1aab0e87160661196b0a16e1d015;p=mesa.git

diff --git a/src/glsl/ast.h b/src/glsl/ast.h
index 2b9b7861b0f..730027177e8 100644
--- a/src/glsl/ast.h
+++ b/src/glsl/ast.h
@@ -49,23 +49,23 @@ struct YYLTYPE;
  */
 class ast_node {
 public:
-   /* Callers of this talloc-based new need not call delete. It's
-    * easier to just talloc_free 'ctx' (or any of its ancestors). */
+   /* Callers of this ralloc-based new need not call delete. It's
+    * easier to just ralloc_free 'ctx' (or any of its ancestors). */
    static void* operator new(size_t size, void *ctx)
    {
       void *node;
 
-      node = talloc_zero_size(ctx, size);
+      node = rzalloc_size(ctx, size);
       assert(node != NULL);
 
       return node;
    }
 
    /* If the user *does* call delete, that's OK, we will just
-    * talloc_free in that case. */
+    * ralloc_free in that case. */
    static void operator delete(void *table)
    {
-      talloc_free(table);
+      ralloc_free(table);
    }
 
    /**
@@ -206,7 +206,8 @@ public:
       subexpressions[0] = NULL;
       subexpressions[1] = NULL;
       subexpressions[2] = NULL;
-      primary_expression.identifier = (char *) identifier;
+      primary_expression.identifier = identifier;
+      this->non_lvalue_description = NULL;
    }
 
    static const char *operator_string(enum ast_operators op);
@@ -221,7 +222,7 @@ public:
    ast_expression *subexpressions[3];
 
    union {
-      char *identifier;
+      const char *identifier;
       int int_constant;
       float float_constant;
       unsigned uint_constant;
@@ -234,6 +235,18 @@ public:
     * \c ast_function_call
     */
    exec_list expressions;
+
+   /**
+    * For things that can't be l-values, this describes what it is.
+    *
+    * This text is used by the code that generates IR for assignments to
+    * detect and emit useful messages for assignments to some things that
+    * can't be l-values.  For example, pre- or post-incerement expressions.
+    *
+    * \note
+    * This pointer may be \c NULL.
+    */
+   const char *non_lvalue_description;
 };
 
 class ast_expression_bin : public ast_expression {
@@ -304,11 +317,11 @@ public:
 
 class ast_declaration : public ast_node {
 public:
-   ast_declaration(char *identifier, int is_array, ast_expression *array_size,
+   ast_declaration(const char *identifier, int is_array, ast_expression *array_size,
 		   ast_expression *initializer);
    virtual void print(void) const;
 
-   char *identifier;
+   const char *identifier;
    
    int is_array;
    ast_expression *array_size;
@@ -325,6 +338,25 @@ enum {
 };
 
 struct ast_type_qualifier {
+   /* Callers of this ralloc-based new need not call delete. It's
+    * easier to just ralloc_free 'ctx' (or any of its ancestors). */
+   static void* operator new(size_t size, void *ctx)
+   {
+      void *node;
+
+      node = rzalloc_size(ctx, size);
+      assert(node != NULL);
+
+      return node;
+   }
+
+   /* If the user *does* call delete, that's OK, we will just
+    * ralloc_free in that case. */
+   static void operator delete(void *table)
+   {
+      ralloc_free(table);
+   }
+
    union {
       struct {
 	 unsigned invariant:1;
@@ -350,6 +382,28 @@ struct ast_type_qualifier {
 	  * qualifier is used.
 	  */
 	 unsigned explicit_location:1;
+	 /**
+	  * Flag set if GL_ARB_explicit_attrib_location "index" layout
+	  * qualifier is used.
+	  */
+	 unsigned explicit_index:1;
+
+         /** \name Layout qualifiers for GL_AMD_conservative_depth */
+         /** \{ */
+         unsigned depth_any:1;
+         unsigned depth_greater:1;
+         unsigned depth_less:1;
+         unsigned depth_unchanged:1;
+         /** \} */
+
+	 /** \name Layout qualifiers for GL_ARB_uniform_buffer_object */
+	 /** \{ */
+         unsigned std140:1;
+         unsigned shared:1;
+         unsigned packed:1;
+         unsigned column_major:1;
+         unsigned row_major:1;
+	 /** \} */
       }
       /** \brief Set of flags, accessed by name. */
       q;
@@ -364,7 +418,14 @@ struct ast_type_qualifier {
     * \note
     * This field is only valid if \c explicit_location is set.
     */
-   unsigned location;
+   int location;
+   /**
+    * Index specified via GL_ARB_explicit_attrib_location layout
+    *
+    * \note
+    * This field is only valid if \c explicit_index is set.
+    */
+   int index;
 
    /**
     * Return true if and only if an interpolation qualifier is present.
@@ -382,95 +443,46 @@ struct ast_type_qualifier {
     * returned string is undefined but not null.
     */
    const char *interpolation_string() const;
+
+   bool merge_qualifier(YYLTYPE *loc,
+			_mesa_glsl_parse_state *state,
+			ast_type_qualifier q);
 };
 
+class ast_declarator_list;
+
 class ast_struct_specifier : public ast_node {
 public:
-   ast_struct_specifier(char *identifier, ast_node *declarator_list);
+   ast_struct_specifier(const char *identifier,
+			ast_declarator_list *declarator_list);
    virtual void print(void) const;
 
    virtual ir_rvalue *hir(exec_list *instructions,
 			  struct _mesa_glsl_parse_state *state);
 
-   char *name;
+   const char *name;
+   /* List of ast_declarator_list * */
    exec_list declarations;
 };
 
 
-enum ast_types {
-   ast_void,
-   ast_float,
-   ast_int,
-   ast_uint,
-   ast_bool,
-   ast_vec2,
-   ast_vec3,
-   ast_vec4,
-   ast_bvec2,
-   ast_bvec3,
-   ast_bvec4,
-   ast_ivec2,
-   ast_ivec3,
-   ast_ivec4,
-   ast_uvec2,
-   ast_uvec3,
-   ast_uvec4,
-   ast_mat2,
-   ast_mat2x3,
-   ast_mat2x4,
-   ast_mat3x2,
-   ast_mat3,
-   ast_mat3x4,
-   ast_mat4x2,
-   ast_mat4x3,
-   ast_mat4,
-   ast_sampler1d,
-   ast_sampler2d,
-   ast_sampler2drect,
-   ast_sampler3d,
-   ast_samplercube,
-   ast_sampler1dshadow,
-   ast_sampler2dshadow,
-   ast_sampler2drectshadow,
-   ast_samplercubeshadow,
-   ast_sampler1darray,
-   ast_sampler2darray,
-   ast_sampler1darrayshadow,
-   ast_sampler2darrayshadow,
-   ast_isampler1d,
-   ast_isampler2d,
-   ast_isampler3d,
-   ast_isamplercube,
-   ast_isampler1darray,
-   ast_isampler2darray,
-   ast_usampler1d,
-   ast_usampler2d,
-   ast_usampler3d,
-   ast_usamplercube,
-   ast_usampler1darray,
-   ast_usampler2darray,
-
-   ast_struct,
-   ast_type_name
-};
-
 
 class ast_type_specifier : public ast_node {
 public:
-   ast_type_specifier(int specifier);
-
    /** Construct a type specifier from a type name */
    ast_type_specifier(const char *name) 
-      : type_specifier(ast_type_name), type_name(name), structure(NULL),
-	is_array(false), array_size(NULL), precision(ast_precision_none)
+      : type_name(name), structure(NULL),
+	is_array(false), array_size(NULL), precision(ast_precision_none),
+	is_precision_statement(false)
    {
       /* empty */
    }
 
    /** Construct a type specifier from a structure definition */
    ast_type_specifier(ast_struct_specifier *s)
-      : type_specifier(ast_struct), type_name(s->name), structure(s),
-	is_array(false), array_size(NULL), precision(ast_precision_none)
+      : type_name(s->name), structure(s),
+	is_array(false), array_size(NULL), precision(ast_precision_none),
+	is_precision_statement(false)
    {
       /* empty */
    }
@@ -483,8 +495,6 @@ public:
 
    ir_rvalue *hir(exec_list *, struct _mesa_glsl_parse_state *);
 
-   enum ast_types type_specifier;
-
    const char *type_name;
    ast_struct_specifier *structure;
 
@@ -492,6 +502,8 @@ public:
    ast_expression *array_size;
 
    unsigned precision:2;
+
+   bool is_precision_statement;
 };
 
 
@@ -524,16 +536,26 @@ public:
     * is used to note these cases when no type is specified.
     */
    int invariant;
+
+   /**
+    * Flag indicating that these declarators are in a uniform block,
+    * allowing UBO type qualifiers.
+    */
+   bool ubo_qualifiers_valid;
 };
 
 
 class ast_parameter_declarator : public ast_node {
 public:
-   ast_parameter_declarator()
+   ast_parameter_declarator() :
+      type(NULL),
+      identifier(NULL),
+      is_array(false),
+      array_size(NULL),
+      formal_parameter(false),
+      is_void(false)
    {
-      this->identifier = NULL;
-      this->is_array = false;
-      this->array_size = 0;
+      /* empty */
    }
 
    virtual void print(void) const;
@@ -542,7 +564,7 @@ public:
 			  struct _mesa_glsl_parse_state *state);
 
    ast_fully_specified_type *type;
-   char *identifier;
+   const char *identifier;
    int is_array;
    ast_expression *array_size;
 
@@ -573,7 +595,7 @@ public:
 			  struct _mesa_glsl_parse_state *state);
 
    ast_fully_specified_type *return_type;
-   char *identifier;
+   const char *identifier;
 
    exec_list parameters;
 
@@ -602,46 +624,92 @@ private:
 };
 
 
-class ast_declaration_statement : public ast_node {
+class ast_expression_statement : public ast_node {
 public:
-   ast_declaration_statement(void);
+   ast_expression_statement(ast_expression *);
+   virtual void print(void) const;
 
-   enum {
-      ast_function,
-      ast_declaration,
-      ast_precision
-   } mode;
+   virtual ir_rvalue *hir(exec_list *instructions,
+			  struct _mesa_glsl_parse_state *state);
 
-   union {
-      class ast_function *function;
-      ast_declarator_list *declarator;
-      ast_type_specifier *type;
-      ast_node *node;
-   } declaration;
+   ast_expression *expression;
 };
 
 
-class ast_expression_statement : public ast_node {
+class ast_case_label : public ast_node {
 public:
-   ast_expression_statement(ast_expression *);
+   ast_case_label(ast_expression *test_value);
    virtual void print(void) const;
 
    virtual ir_rvalue *hir(exec_list *instructions,
 			  struct _mesa_glsl_parse_state *state);
 
-   ast_expression *expression;
+   /**
+    * An test value of NULL means 'default'.
+    */
+   ast_expression *test_value;
 };
 
 
-class ast_case_label : public ast_node {
+class ast_case_label_list : public ast_node {
 public:
+   ast_case_label_list(void);
+   virtual void print(void) const;
+
+   virtual ir_rvalue *hir(exec_list *instructions,
+			  struct _mesa_glsl_parse_state *state);
 
    /**
-    * An expression of NULL means 'default'.
+    * A list of case labels.
     */
-   ast_expression *expression;
+   exec_list labels;
+};
+
+
+class ast_case_statement : public ast_node {
+public:
+   ast_case_statement(ast_case_label_list *labels);
+   virtual void print(void) const;
+
+   virtual ir_rvalue *hir(exec_list *instructions,
+			  struct _mesa_glsl_parse_state *state);
+
+   ast_case_label_list *labels;
+
+   /**
+    * A list of statements.
+    */
+   exec_list stmts;
+};
+
+
+class ast_case_statement_list : public ast_node {
+public:
+   ast_case_statement_list(void);
+   virtual void print(void) const;
+
+   virtual ir_rvalue *hir(exec_list *instructions,
+			  struct _mesa_glsl_parse_state *state);
+
+   /**
+    * A list of cases.
+    */
+   exec_list cases;
+};
+
+
+class ast_switch_body : public ast_node {
+public:
+   ast_switch_body(ast_case_statement_list *stmts);
+   virtual void print(void) const;
+
+   virtual ir_rvalue *hir(exec_list *instructions,
+			  struct _mesa_glsl_parse_state *state);
+
+   ast_case_statement_list *stmts;
 };
 
+
 class ast_selection_statement : public ast_node {
 public:
    ast_selection_statement(ast_expression *condition,
@@ -660,8 +728,18 @@ public:
 
 class ast_switch_statement : public ast_node {
 public:
-   ast_expression *expression;
-   exec_list statements;
+   ast_switch_statement(ast_expression *test_expression,
+			ast_node *body);
+   virtual void print(void) const;
+
+   virtual ir_rvalue *hir(exec_list *instructions,
+			  struct _mesa_glsl_parse_state *state);
+
+   ast_expression *test_expression;
+   ast_node *body;
+
+protected:
+   void test_to_hir(exec_list *, struct _mesa_glsl_parse_state *);
 };
 
 class ast_iteration_statement : public ast_node {
@@ -726,6 +804,46 @@ public:
    ast_function *prototype;
    ast_compound_statement *body;
 };
+
+class ast_uniform_block : public ast_node {
+public:
+   ast_uniform_block(ast_type_qualifier layout,
+                     const char *instance_name,
+		     ast_expression *array_size)
+   : layout(layout), block_name(NULL), instance_name(instance_name),
+     array_size(array_size)
+   {
+      /* empty */
+   }
+
+   virtual ir_rvalue *hir(exec_list *instructions,
+			  struct _mesa_glsl_parse_state *state);
+
+   ast_type_qualifier layout;
+   const char *block_name;
+
+   /**
+    * Declared name of the block instance, if specified.
+    *
+    * If the block does not have an instance name, this field will be
+    * \c NULL.
+    */
+   const char *instance_name;
+
+   /** List of ast_declarator_list * */
+   exec_list declarations;
+
+   /**
+    * Declared array size of the block instance
+    *
+    * If the block is not declared as an array, this field will be \c NULL.
+    *
+    * \note
+    * A block can only be an array if it also has an instance name.  If this
+    * field is not \c NULL, ::instance_name must also not be \c NULL.
+    */
+   ast_expression *array_size;
+};
 /*@}*/
 
 extern void
@@ -736,8 +854,17 @@ _mesa_ast_field_selection_to_hir(const ast_expression *expr,
 				 exec_list *instructions,
 				 struct _mesa_glsl_parse_state *state);
 
+extern ir_rvalue *
+_mesa_ast_array_index_to_hir(void *mem_ctx,
+			     struct _mesa_glsl_parse_state *state,
+			     ir_rvalue *array, ir_rvalue *idx,
+			     YYLTYPE &loc, YYLTYPE &idx_loc);
+
 void
-emit_function(_mesa_glsl_parse_state *state, exec_list *instructions,
-	      ir_function *f);
+emit_function(_mesa_glsl_parse_state *state, ir_function *f);
+
+extern void
+check_builtin_array_max_size(const char *name, unsigned size,
+                             YYLTYPE loc, struct _mesa_glsl_parse_state *state);
 
 #endif /* AST_H */