glsl/builtins: Use ivec for texel offsets in textureProjGradOffset.
[mesa.git] / src / glsl / glsl_types.cpp
index 95b859264821b389a9654372f3d0ae2e401f760f..8a34b8eb09c9e16384142e4e548d9b61d73a560f 100644 (file)
@@ -21,7 +21,7 @@
  * DEALINGS IN THE SOFTWARE.
  */
 
-#include <cstdio>
+#include <stdio.h>
 #include <stdlib.h>
 #include "main/core.h" /* for Elements */
 #include "glsl_symbol_table.h"
@@ -37,10 +37,10 @@ hash_table *glsl_type::record_types = NULL;
 void *glsl_type::mem_ctx = NULL;
 
 void
-glsl_type::init_talloc_type_ctx(void)
+glsl_type::init_ralloc_type_ctx(void)
 {
    if (glsl_type::mem_ctx == NULL) {
-      glsl_type::mem_ctx = talloc_autofree_context();
+      glsl_type::mem_ctx = ralloc_autofree_context();
       assert(glsl_type::mem_ctx != NULL);
    }
 }
@@ -55,8 +55,8 @@ glsl_type::glsl_type(GLenum gl_type,
    vector_elements(vector_elements), matrix_columns(matrix_columns),
    length(0)
 {
-   init_talloc_type_ctx();
-   this->name = talloc_strdup(this->mem_ctx, name);
+   init_ralloc_type_ctx();
+   this->name = ralloc_strdup(this->mem_ctx, name);
    /* Neither dimension is zero or both dimensions are zero.
     */
    assert((vector_elements == 0) == (matrix_columns == 0));
@@ -73,8 +73,8 @@ glsl_type::glsl_type(GLenum gl_type,
    vector_elements(0), matrix_columns(0),
    length(0)
 {
-   init_talloc_type_ctx();
-   this->name = talloc_strdup(this->mem_ctx, name);
+   init_ralloc_type_ctx();
+   this->name = ralloc_strdup(this->mem_ctx, name);
    memset(& fields, 0, sizeof(fields));
 }
 
@@ -88,13 +88,13 @@ glsl_type::glsl_type(const glsl_struct_field *fields, unsigned num_fields,
 {
    unsigned int i;
 
-   init_talloc_type_ctx();
-   this->name = talloc_strdup(this->mem_ctx, name);
-   this->fields.structure = talloc_array(this->mem_ctx,
+   init_ralloc_type_ctx();
+   this->name = ralloc_strdup(this->mem_ctx, name);
+   this->fields.structure = ralloc_array(this->mem_ctx,
                                         glsl_struct_field, length);
    for (i = 0; i < length; i++) {
       this->fields.structure[i].type = fields[i].type;
-      this->fields.structure[i].name = talloc_strdup(this->fields.structure,
+      this->fields.structure[i].name = ralloc_strdup(this->fields.structure,
                                                     fields[i].name);
    }
 }
@@ -111,6 +111,50 @@ add_types_to_symbol_table(glsl_symbol_table *symtab,
    }
 }
 
+bool
+glsl_type::contains_sampler() const
+{
+   if (this->is_array()) {
+      return this->fields.array->contains_sampler();
+   } else if (this->is_record()) {
+      for (unsigned int i = 0; i < this->length; i++) {
+        if (this->fields.structure[i].type->contains_sampler())
+           return true;
+      }
+      return false;
+   } else {
+      return this->is_sampler();
+   }
+}
+
+gl_texture_index
+glsl_type::sampler_index() const
+{
+   const glsl_type *const t = (this->is_array()) ? this->fields.array : this;
+
+   assert(t->is_sampler());
+
+   switch (t->sampler_dimensionality) {
+   case GLSL_SAMPLER_DIM_1D:
+      return (t->sampler_array) ? TEXTURE_1D_ARRAY_INDEX : TEXTURE_1D_INDEX;
+   case GLSL_SAMPLER_DIM_2D:
+      return (t->sampler_array) ? TEXTURE_2D_ARRAY_INDEX : TEXTURE_2D_INDEX;
+   case GLSL_SAMPLER_DIM_3D:
+      return TEXTURE_3D_INDEX;
+   case GLSL_SAMPLER_DIM_CUBE:
+      return TEXTURE_CUBE_INDEX;
+   case GLSL_SAMPLER_DIM_RECT:
+      return TEXTURE_RECT_INDEX;
+   case GLSL_SAMPLER_DIM_BUF:
+      return TEXTURE_BUFFER_INDEX;
+   case GLSL_SAMPLER_DIM_EXTERNAL:
+      return TEXTURE_EXTERNAL_INDEX;
+   default:
+      assert(!"Should not get here.");
+      return TEXTURE_BUFFER_INDEX;
+   }
+}
+
 void
 glsl_type::generate_100ES_types(glsl_symbol_table *symtab)
 {
@@ -124,23 +168,26 @@ glsl_type::generate_100ES_types(glsl_symbol_table *symtab)
 }
 
 void
-glsl_type::generate_110_types(glsl_symbol_table *symtab)
+glsl_type::generate_110_types(glsl_symbol_table *symtab, bool add_deprecated)
 {
    generate_100ES_types(symtab);
 
    add_types_to_symbol_table(symtab, builtin_110_types,
                             Elements(builtin_110_types),
                             false);
-   add_types_to_symbol_table(symtab, builtin_110_deprecated_structure_types,
-                            Elements(builtin_110_deprecated_structure_types),
-                            false);
+   add_types_to_symbol_table(symtab, &_sampler3D_type, 1, false);
+   if (add_deprecated) {
+      add_types_to_symbol_table(symtab, builtin_110_deprecated_structure_types,
+                               Elements(builtin_110_deprecated_structure_types),
+                               false);
+   }
 }
 
 
 void
-glsl_type::generate_120_types(glsl_symbol_table *symtab)
+glsl_type::generate_120_types(glsl_symbol_table *symtab, bool add_deprecated)
 {
-   generate_110_types(symtab);
+   generate_110_types(symtab, add_deprecated);
 
    add_types_to_symbol_table(symtab, builtin_120_types,
                             Elements(builtin_120_types), false);
@@ -148,9 +195,9 @@ glsl_type::generate_120_types(glsl_symbol_table *symtab)
 
 
 void
-glsl_type::generate_130_types(glsl_symbol_table *symtab)
+glsl_type::generate_130_types(glsl_symbol_table *symtab, bool add_deprecated)
 {
-   generate_120_types(symtab);
+   generate_120_types(symtab, add_deprecated);
 
    add_types_to_symbol_table(symtab, builtin_130_types,
                             Elements(builtin_130_types), false);
@@ -158,6 +205,20 @@ glsl_type::generate_130_types(glsl_symbol_table *symtab)
 }
 
 
+void
+glsl_type::generate_140_types(glsl_symbol_table *symtab)
+{
+   generate_130_types(symtab, false);
+
+   add_types_to_symbol_table(symtab, builtin_140_types,
+                            Elements(builtin_140_types), false);
+
+   add_types_to_symbol_table(symtab, builtin_EXT_texture_buffer_object_types,
+                            Elements(builtin_EXT_texture_buffer_object_types),
+                            false);
+}
+
+
 void
 glsl_type::generate_ARB_texture_rectangle_types(glsl_symbol_table *symtab,
                                                bool warn)
@@ -178,6 +239,22 @@ glsl_type::generate_EXT_texture_array_types(glsl_symbol_table *symtab,
 }
 
 
+void
+glsl_type::generate_OES_texture_3D_types(glsl_symbol_table *symtab, bool warn)
+{
+   add_types_to_symbol_table(symtab, &_sampler3D_type, 1, warn);
+}
+
+
+void
+glsl_type::generate_OES_EGL_image_external_types(glsl_symbol_table *symtab,
+                                                bool warn)
+{
+   add_types_to_symbol_table(symtab, builtin_OES_EGL_image_external_types,
+                            Elements(builtin_OES_EGL_image_external_types),
+                            warn);
+}
+
 void
 _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state)
 {
@@ -187,29 +264,46 @@ _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state)
       glsl_type::generate_100ES_types(state->symbols);
       break;
    case 110:
-      glsl_type::generate_110_types(state->symbols);
+      glsl_type::generate_110_types(state->symbols, true);
       break;
    case 120:
-      glsl_type::generate_120_types(state->symbols);
+      glsl_type::generate_120_types(state->symbols, true);
       break;
    case 130:
-      glsl_type::generate_130_types(state->symbols);
+      glsl_type::generate_130_types(state->symbols, true);
+      break;
+   case 140:
+      glsl_type::generate_140_types(state->symbols);
       break;
    default:
       /* error */
       break;
    }
 
-   if (state->ARB_texture_rectangle_enable) {
+   if (state->ARB_texture_rectangle_enable ||
+       state->language_version >= 140) {
       glsl_type::generate_ARB_texture_rectangle_types(state->symbols,
                                           state->ARB_texture_rectangle_warn);
    }
+   if (state->OES_texture_3D_enable && state->language_version == 100) {
+      glsl_type::generate_OES_texture_3D_types(state->symbols,
+                                              state->OES_texture_3D_warn);
+   }
 
    if (state->EXT_texture_array_enable && state->language_version < 130) {
       // These are already included in 130; don't create twice.
       glsl_type::generate_EXT_texture_array_types(state->symbols,
                                       state->EXT_texture_array_warn);
    }
+
+   /* We cannot check for language_version == 100 here because we need the
+    * types to support fixed-function program generation.  But this is fine
+    * since the extension is never enabled for OpenGL contexts.
+    */
+   if (state->OES_EGL_image_external_enable) {
+      glsl_type::generate_OES_EGL_image_external_types(state->symbols,
+                                              state->OES_EGL_image_external_warn);
+   }
 }
 
 
@@ -230,6 +324,29 @@ const glsl_type *glsl_type::get_base_type() const
 }
 
 
+const glsl_type *glsl_type::get_scalar_type() const
+{
+   const glsl_type *type = this;
+
+   /* Handle arrays */
+   while (type->base_type == GLSL_TYPE_ARRAY)
+      type = type->fields.array;
+
+   /* Handle vectors and matrices */
+   switch (type->base_type) {
+   case GLSL_TYPE_UINT:
+      return uint_type;
+   case GLSL_TYPE_INT:
+      return int_type;
+   case GLSL_TYPE_FLOAT:
+      return float_type;
+   default:
+      /* Handle everything else */
+      return type;
+   }
+}
+
+
 void
 _mesa_glsl_release_types(void)
 {
@@ -264,7 +381,7 @@ glsl_type::glsl_type(const glsl_type *array, unsigned length) :
     * NUL.
     */
    const unsigned name_length = strlen(array->name) + 10 + 3;
-   char *const n = (char *) talloc_size(this->mem_ctx, name_length);
+   char *const n = (char *) ralloc_size(this->mem_ctx, name_length);
 
    if (length == 0)
       snprintf(n, name_length, "%s[]", array->name);
@@ -354,7 +471,7 @@ glsl_type::get_array_instance(const glsl_type *base, unsigned array_size)
    if (t == NULL) {
       t = new glsl_type(base, array_size);
 
-      hash_table_insert(array_types, (void *) t, talloc_strdup(mem_ctx, key));
+      hash_table_insert(array_types, (void *) t, ralloc_strdup(mem_ctx, key));
    }
 
    assert(t->base_type == GLSL_TYPE_ARRAY);
@@ -495,3 +612,19 @@ glsl_type::component_slots() const
       return 0;
    }
 }
+
+bool
+glsl_type::can_implicitly_convert_to(const glsl_type *desired) const
+{
+   if (this == desired)
+      return true;
+
+   /* There is no conversion among matrix types. */
+   if (this->matrix_columns > 1 || desired->matrix_columns > 1)
+      return false;
+
+   /* int and uint can be converted to float. */
+   return desired->is_float()
+          && this->is_integer()
+          && this->vector_elements == desired->vector_elements;
+}