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gskslvariable: Make it classed

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This is still in preparation for supporting multiple types of variables.
This commit is contained in:
Benjamin Otte
2017-10-10 01:48:29 +02:00
parent 1a5615ed73
commit 53bc1a1d35
1 changed files with 119 additions and 48 deletions
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167
gsk/gskslvariable.c
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@@ -26,7 +26,11 @@
#include "gskslvalueprivate.h"
#include "gskspvwriterprivate.h"
typedef struct _GskSlVariableClass GskSlVariableClass;
struct _GskSlVariable {
const GskSlVariableClass *class;
guint ref_count;
char *name;
@@ -35,6 +39,115 @@ struct _GskSlVariable {
GskSlValue *initial_value;
};
struct _GskSlVariableClass
{
gsize size;
void (* free) (GskSlVariable *variable);
guint32 (* write_spv) (const GskSlVariable *variable,
GskSpvWriter *writer);
guint32 (* load_spv) (GskSlVariable *variable,
GskSpvWriter *writer);
void (* store_spv) (GskSlVariable *variable,
GskSpvWriter *writer,
guint32 value);
};
static GskSlVariable *
gsk_sl_variable_alloc (const GskSlVariableClass *klass)
{
GskSlVariable *variable;
variable = g_slice_alloc0 (klass->size);
variable->class = klass;
variable->ref_count = 1;
return variable;
}
static void
gsk_sl_variable_free (GskSlVariable *variable)
{
if (variable->initial_value)
gsk_sl_value_free (variable->initial_value);
gsk_sl_type_unref (variable->type);
g_free (variable->name);
g_slice_free1 (variable->class->size, variable);
}
/* STANDARD */
static guint32
gsk_sl_variable_standard_write_spv (const GskSlVariable *variable,
GskSpvWriter *writer)
{
guint32 result_id;
GskSlQualifierLocation location;
location = gsk_sl_qualifier_get_location (&variable->qualifier);
if (location == GSK_SL_QUALIFIER_PARAMETER)
{
result_id = gsk_spv_writer_function_parameter (writer,
variable->type);
}
else
{
guint32 value_id;
if (variable->initial_value)
value_id = gsk_spv_writer_get_id_for_value (writer, variable->initial_value);
else
value_id = 0;
result_id = gsk_spv_writer_variable (writer,
location == GSK_SL_QUALIFIER_GLOBAL ? GSK_SPV_WRITER_SECTION_DEFINE : GSK_SPV_WRITER_SECTION_DECLARE,
variable->type,
gsk_sl_qualifier_get_storage_class (&variable->qualifier),
gsk_sl_qualifier_get_storage_class (&variable->qualifier),
value_id);
}
if (variable->name)
gsk_spv_writer_name (writer, result_id, variable->name);
return result_id;
}
static guint32
gsk_sl_variable_standard_load_spv (GskSlVariable *variable,
GskSpvWriter *writer)
{
return gsk_spv_writer_load (writer,
gsk_sl_variable_get_type (variable),
gsk_spv_writer_get_id_for_variable (writer, variable),
0);
}
static void
gsk_sl_variable_standard_store_spv (GskSlVariable *variable,
GskSpvWriter *writer,
guint32 value)
{
gsk_spv_writer_store (writer,
gsk_spv_writer_get_id_for_variable (writer, variable),
value,
0);
}
static const GskSlVariableClass GSK_SL_VARIABLE_STANDARD = {
sizeof (GskSlVariable),
gsk_sl_variable_free,
gsk_sl_variable_standard_write_spv,
gsk_sl_variable_standard_load_spv,
gsk_sl_variable_standard_store_spv,
};
/* API */
GskSlVariable *
gsk_sl_variable_new (const char *name,
GskSlType *type,
@@ -44,9 +157,9 @@ gsk_sl_variable_new (const char *name,
GskSlVariable *variable;
g_return_val_if_fail (initial_value == NULL || gsk_sl_type_equal (type, gsk_sl_value_get_type (initial_value)), NULL);
variable = g_slice_new0 (GskSlVariable);
variable->ref_count = 1;
variable = gsk_sl_variable_alloc (&GSK_SL_VARIABLE_STANDARD);
variable->type = gsk_sl_type_ref (type);
variable->qualifier = *qualifier;
variable->name = g_strdup (name);
@@ -75,12 +188,7 @@ gsk_sl_variable_unref (GskSlVariable *variable)
if (variable->ref_count > 0)
return;
if (variable->initial_value)
gsk_sl_value_free (variable->initial_value);
gsk_sl_type_unref (variable->type);
g_free (variable->name);
g_slice_free (GskSlVariable, variable);
variable->class->free (variable);
}
void
@@ -150,47 +258,14 @@ guint32
gsk_sl_variable_write_spv (const GskSlVariable *variable,
GskSpvWriter *writer)
{
guint32 result_id;
GskSlQualifierLocation location;
location = gsk_sl_qualifier_get_location (&variable->qualifier);
if (location == GSK_SL_QUALIFIER_PARAMETER)
{
result_id = gsk_spv_writer_function_parameter (writer,
variable->type);
}
else
{
guint32 value_id;
if (variable->initial_value)
value_id = gsk_spv_writer_get_id_for_value (writer, variable->initial_value);
else
value_id = 0;
result_id = gsk_spv_writer_variable (writer,
location == GSK_SL_QUALIFIER_GLOBAL ? GSK_SPV_WRITER_SECTION_DEFINE : GSK_SPV_WRITER_SECTION_DECLARE,
variable->type,
gsk_sl_qualifier_get_storage_class (&variable->qualifier),
gsk_sl_qualifier_get_storage_class (&variable->qualifier),
value_id);
}
if (variable->name)
gsk_spv_writer_name (writer, result_id, variable->name);
return result_id;
return variable->class->write_spv (variable, writer);
}
guint32
gsk_sl_variable_load_spv (GskSlVariable *variable,
GskSpvWriter *writer)
{
return gsk_spv_writer_load (writer,
gsk_sl_variable_get_type (variable),
gsk_spv_writer_get_id_for_variable (writer, variable),
0);
return variable->class->load_spv (variable, writer);
}
void
@@ -198,10 +273,6 @@ gsk_sl_variable_store_spv (GskSlVariable *variable,
GskSpvWriter *writer,
guint32 value)
{
gsk_spv_writer_store (writer,
gsk_spv_writer_get_id_for_variable (writer, variable),
value,
0);
variable->class->store_spv (variable, writer, value);
}