Will be utilized by IR serialization to serialize user defined types.
Signed-off-by: Tapani Pälli <tapani.pa...@intel.com>
Reviewed-by: Paul Berry <stereotype...@gmail.com> (v1)
---
src/glsl/glsl_types.cpp | 58 +++++++++++++++++++++++++++++++++++++++++++++++++
src/glsl/glsl_types.h | 6 +++++
2 files changed, 64 insertions(+)
diff --git a/src/glsl/glsl_types.cpp b/src/glsl/glsl_types.cpp
index 849a79a..212d533 100644
--- a/src/glsl/glsl_types.cpp
+++ b/src/glsl/glsl_types.cpp
@@ -143,6 +143,64 @@ glsl_type::glsl_type(const glsl_struct_field *fields,
unsigned num_fields,
}
+void
+glsl_type::serialize(memory_writer &mem) const
+{
+ uint32_t data_len = 0;
+
+ mem.write_string(name);
+
+ unsigned start_pos = mem.position();
+ mem.write_uint32_t(data_len);
+
+ /**
+ * Used to notify reader if a user defined type
+ * has been serialized before.
+ */
+ uint8_t user_type_exists = 0;
+
+ /* Serialize only user defined types. */
+ switch (base_type) {
+ case GLSL_TYPE_ARRAY:
+ case GLSL_TYPE_STRUCT:
+ case GLSL_TYPE_INTERFACE:
+ break;
+ default:
+ goto serilization_epilogue;
+ }
+
+ uint32_t type_id;
+ user_type_exists = mem.make_unique_id(this, &type_id);
+
+ mem.write_uint8_t(user_type_exists);
+ mem.write_uint32_t(type_id);
+
+ /* No need to write again. */
+ if (user_type_exists)
+ goto serilization_epilogue;
+
+ mem.write_uint32_t((uint32_t)length);
+ mem.write_uint8_t((uint8_t)base_type);
+ mem.write_uint8_t((uint8_t)interface_packing);
+
+ if (base_type == GLSL_TYPE_ARRAY) {
+ element_type()->serialize(mem);
+ } else {
+ glsl_struct_field *field = fields.structure;
+ for (unsigned i = 0; i < length; i++, field++) {
+ mem.write(field, sizeof(glsl_struct_field));
+ mem.write_string(field->name);
+ field->type->serialize(mem);
+ }
+ }
+
+serilization_epilogue:
+ /* Update the length of written data in 'start_pos'. */
+ data_len = mem.position() - start_pos - sizeof(data_len);
+ mem.overwrite(&data_len, sizeof(data_len), start_pos);
+}
+
+
bool
glsl_type::contains_sampler() const
{
diff --git a/src/glsl/glsl_types.h b/src/glsl/glsl_types.h
index dca5492..bc2dffe 100644
--- a/src/glsl/glsl_types.h
+++ b/src/glsl/glsl_types.h
@@ -82,6 +82,7 @@ enum glsl_interface_packing {
#ifdef __cplusplus
#include "GL/gl.h"
#include "ralloc.h"
+#include "memory_writer.h"
struct glsl_type {
GLenum gl_type;
@@ -122,6 +123,11 @@ struct glsl_type {
}
/**
+ * Serialization functionality used by binary shaders.
+ */
+ void serialize(memory_writer &mem) const;
+
+ /**
* \name Vector and matrix element counts
*
* For scalars, each of these values will be 1. For non-numeric types
--
1.8.3.1
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