#ifndef GLSL_TYPES_H
#define GLSL_TYPES_H
-#include <cstring>
-#include <cassert>
+#include <string.h>
+#include <assert.h>
+#include "main/mtypes.h" /* for gl_texture_index, C++'s enum rules are broken */
+#ifdef __cplusplus
extern "C" {
-#include "GL/gl.h"
-#include <talloc.h>
-}
+#endif
struct _mesa_glsl_parse_state;
struct glsl_symbol_table;
-extern "C" void
+extern void
_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state);
-extern "C" void
+extern void
_mesa_glsl_release_types(void);
+#ifdef __cplusplus
+}
+#endif
+
enum glsl_base_type {
GLSL_TYPE_UINT = 0,
GLSL_TYPE_INT,
GLSL_SAMPLER_DIM_3D,
GLSL_SAMPLER_DIM_CUBE,
GLSL_SAMPLER_DIM_RECT,
- GLSL_SAMPLER_DIM_BUF
+ GLSL_SAMPLER_DIM_BUF,
+ GLSL_SAMPLER_DIM_EXTERNAL
};
+#ifdef __cplusplus
+#include "GL/gl.h"
+#include "ralloc.h"
struct glsl_type {
GLenum gl_type;
glsl_base_type base_type;
- unsigned sampler_dimensionality:3;
+ unsigned sampler_dimensionality:3; /**< \see glsl_sampler_dim */
unsigned sampler_shadow:1;
unsigned sampler_array:1;
unsigned sampler_type:2; /**< Type of data returned using this sampler.
* and \c GLSL_TYPE_UINT are valid.
*/
- /* Callers of this talloc-based new need not call delete. It's
- * easier to just talloc_free 'mem_ctx' (or any of its ancestors). */
+ /* Callers of this ralloc-based new need not call delete. It's
+ * easier to just ralloc_free 'mem_ctx' (or any of its ancestors). */
static void* operator new(size_t size)
{
if (glsl_type::mem_ctx == NULL) {
- glsl_type::mem_ctx = talloc_init("glsl_type");
+ glsl_type::mem_ctx = ralloc_context(NULL);
assert(glsl_type::mem_ctx != NULL);
}
void *type;
- type = talloc_size(glsl_type::mem_ctx, size);
+ type = ralloc_size(glsl_type::mem_ctx, size);
assert(type != NULL);
return type;
}
/* 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 *type)
{
- talloc_free(type);
+ ralloc_free(type);
}
/**
*/
/*@{*/
static const glsl_type *const error_type;
+ static const glsl_type *const void_type;
static const glsl_type *const int_type;
static const glsl_type *const ivec4_type;
static const glsl_type *const uint_type;
*/
const glsl_type *get_base_type() const;
+ /**
+ * Get the basic scalar type which this type aggregates.
+ *
+ * If the type is a numeric or boolean scalar, vector, or matrix, or an
+ * array of any of those, this function gets the scalar type of the
+ * individual components. For structs and arrays of structs, this function
+ * returns the struct type. For samplers and arrays of samplers, this
+ * function returns the sampler type.
+ */
+ const glsl_type *get_scalar_type() const;
+
/**
* Query the type of elements in an array
*
*/
unsigned component_slots() const;
+ /**
+ * \brief Can this type be implicitly converted to another?
+ *
+ * \return True if the types are identical or if this type can be converted
+ * to \c desired according to Section 4.1.10 of the GLSL spec.
+ *
+ * \verbatim
+ * From page 25 (31 of the pdf) of the GLSL 1.50 spec, Section 4.1.10
+ * Implicit Conversions:
+ *
+ * In some situations, an expression and its type will be implicitly
+ * converted to a different type. The following table shows all allowed
+ * implicit conversions:
+ *
+ * Type of expression | Can be implicitly converted to
+ * --------------------------------------------------
+ * int float
+ * uint
+ *
+ * ivec2 vec2
+ * uvec2
+ *
+ * ivec3 vec3
+ * uvec3
+ *
+ * ivec4 vec4
+ * uvec4
+ *
+ * There are no implicit array or structure conversions. For example,
+ * an array of int cannot be implicitly converted to an array of float.
+ * There are no implicit conversions between signed and unsigned
+ * integers.
+ * \endverbatim
+ */
+ bool can_implicitly_convert_to(const glsl_type *desired) const;
/**
* Query whether or not a type is a scalar (non-vector and non-matrix).
return base_type == GLSL_TYPE_SAMPLER;
}
+ /**
+ * Query whether or not type is a sampler, or for struct and array
+ * types, contains a sampler.
+ */
+ bool contains_sampler() const;
+
+ /**
+ * Get the Mesa texture target index for a sampler type.
+ */
+ gl_texture_index sampler_index() const;
+
/**
* Query whether or not a type is an array
*/
private:
/**
- * talloc context for all glsl_type allocations
+ * ralloc context for all glsl_type allocations
*
* Set on the first call to \c glsl_type::new.
*/
static void *mem_ctx;
- void init_talloc_type_ctx(void);
+ void init_ralloc_type_ctx(void);
/** Constructor for vector and matrix types */
glsl_type(GLenum gl_type,
*/
/*@{*/
static const glsl_type _error_type;
- static const glsl_type void_type;
+ static const glsl_type _void_type;
+ static const glsl_type _sampler3D_type;
static const glsl_type builtin_core_types[];
static const glsl_type builtin_structure_types[];
static const glsl_type builtin_110_deprecated_structure_types[];
static const glsl_type builtin_ARB_texture_rectangle_types[];
static const glsl_type builtin_EXT_texture_array_types[];
static const glsl_type builtin_EXT_texture_buffer_object_types[];
+ static const glsl_type builtin_OES_EGL_image_external_types[];
/*@}*/
/**
static void generate_130_types(glsl_symbol_table *);
static void generate_ARB_texture_rectangle_types(glsl_symbol_table *, bool);
static void generate_EXT_texture_array_types(glsl_symbol_table *, bool);
+ static void generate_OES_texture_3D_types(glsl_symbol_table *, bool);
+ static void generate_OES_EGL_image_external_types(glsl_symbol_table *, bool);
/*@}*/
/**
const char *name;
};
+#endif /* __cplusplus */
+
#endif /* GLSL_TYPES_H */
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