Added original glslang_c_interface implementation by Viktor Latypov

glslang/Include/glslang_c_interface.h

@@ -0,0 +1,127 @@
+/**
+BSD 2-Clause License
+
+Copyright (c) 2019, Viktor Latypov
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**/
+
+#ifndef GLSLANG_C_IFACE_H_INCLUDED
+#define GLSLANG_C_IFACE_H_INCLUDED
+
+#include <stdlib.h>
+
+#include "c_shader_types.h"
+
+typedef struct glslang_shader_s glslang_shader_t;
+typedef struct glslang_program_s glslang_program_t;
+
+typedef struct glslang_input_s
+{
+	glslang_source_t language;
+	glslang_stage_t stage;
+	glslang_client_t client;
+	glslang_target_client_version_t client_version;
+	glslang_target_language_t target_language;
+	glslang_target_language_version_t target_language_version;
+	/** Shader source code */
+	const char* code;
+	int default_version;
+	glslang_profile_t default_profile;
+	int force_default_version_and_profile;
+	int forward_compatible;
+	glslang_messages_t messages;
+} glslang_input_t;
+
+/* Inclusion result structure allocated by C include_local/include_system callbacks */
+typedef struct glsl_include_result_s
+{
+	/* Header file name or NULL if inclusion failed */
+	const char *header_name;
+
+	/* Header contents or NULL */
+	const char *header_data;
+	size_t     header_length;
+
+} glsl_include_result_t;
+
+/* Callback for local file inclusion */
+typedef glsl_include_result_t* (*glsl_include_local_func)(
+	void *ctx,
+	const char *header_name,
+	const char *includer_name,
+	size_t include_depth);
+
+/* Callback for system file inclusion */
+typedef glsl_include_result_t* (*glsl_include_system_func)(
+	void *ctx,
+	const char *header_name,
+	const char *includer_name,
+	size_t include_depth); 
+
+/* Callback for include result destruction */
+typedef int (*glsl_free_include_result_func)(
+	void *ctx,
+	glsl_include_result_t *result);
+
+/* Collection of callbacks for GLSL preprocessor */
+typedef struct glsl_include_callbacks_s
+{
+	glsl_include_system_func      include_system;
+	glsl_include_local_func       include_local;
+	glsl_free_include_result_func free_include_result;
+} glsl_include_callbacks_t;
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+int  glslang_initialize_process();
+void glslang_finalize_process();
+
+glslang_shader_t *glslang_shader_create(glslang_input_t *input);
+void glslang_shader_delete(glslang_shader_t *shader);
+int glslang_shader_preprocess(glslang_shader_t *shader, glslang_input_t *input);
+int glslang_shader_parse(glslang_shader_t *shader, glslang_input_t *input);
+const char* glslang_shader_get_preprocessed_code(glslang_shader_t *shader);
+const char* glslang_shader_get_info_log(glslang_shader_t *shader);
+const char* glslang_shader_get_info_debug_log(glslang_shader_t *shader);
+
+glslang_program_t *glslang_program_create();
+void glslang_program_delete(glslang_program_t *program);
+void glslang_program_add_shader(glslang_program_t *program, glslang_shader_t *shader);
+int glslang_program_link(glslang_program_t *program, int messages);
+void glslang_program_SPIRV_generate(glslang_program_t *program, glslang_stage_t stage);
+size_t glslang_program_SPIRV_get_size(glslang_program_t *program);
+void glslang_program_SPIRV_get(glslang_program_t *program, unsigned int *);
+const char* glslang_program_SPIRV_get_messages(glslang_program_t *program);
+const char* glslang_program_get_info_log(glslang_program_t *program);
+const char* glslang_program_get_info_debug_log(glslang_program_t *program);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* #ifdef GLSLANG_C_IFACE_INCLUDED */
+