Added original glslang_c_interface implementation by Viktor Latypov

glslang/Include/c_shader_types.h

+/**
+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 C_SHADER_TYPES_H_INCLUDED
+#define C_SHADER_TYPES_H_INCLUDED
+
+/* EShLanguage counterpart */
+typedef enum {
+    SH_STAGE_VERTEX,
+    SH_STAGE_TESSCONTROL,
+    SH_STAGE_TESSEVALUATION,
+    SH_STAGE_GEOMETRY,
+    SH_STAGE_FRAGMENT,
+    SH_STAGE_COMPUTE,
+    SH_STAGE_RAYGEN_NV,
+    SH_STAGE_INTERSECT_NV,
+    SH_STAGE_ANYHIT_NV,
+    SH_STAGE_CLOSESTHIT_NV,
+    SH_STAGE_MISS_NV,
+    SH_STAGE_CALLABLE_NV,
+    SH_STAGE_TASK_NV,
+    SH_STAGE_MESH_NV,
+    SH_STAGE_COUNT,
+} glslang_stage_t;         // would be better as stage, but this is ancient now
+
+/* EShLanguageMask counterpart */
+typedef enum {
+    SH_STAGE_VERTEX_MASK          = (1 << SH_STAGE_VERTEX),
+    SH_STAGE_TESSCONTROL_MASK     = (1 << SH_STAGE_TESSCONTROL),
+    SH_STAGE_TESSEVALUATION_MASK  = (1 << SH_STAGE_TESSEVALUATION),
+    SH_STAGE_GEOMETRY_MASK        = (1 << SH_STAGE_GEOMETRY),
+    SH_STAGE_FRAGMENT_MASK        = (1 << SH_STAGE_FRAGMENT),
+    SH_STAGE_COMPUTE_MASK         = (1 << SH_STAGE_COMPUTE),
+    SH_STAGE_RAYGEN_NV_MASK       = (1 << SH_STAGE_RAYGEN_NV),
+    SH_STAGE_INTERSECT_NV_MASK    = (1 << SH_STAGE_INTERSECT_NV),
+    SH_STAGE_ANYHIT_NV_MASK       = (1 << SH_STAGE_ANYHIT_NV),
+    SH_STAGE_CLOSESTHIT_NV_MASK   = (1 << SH_STAGE_CLOSESTHIT_NV),
+    SH_STAGE_MISS_NV_MASK         = (1 << SH_STAGE_MISS_NV),
+    SH_STAGE_CALLABLE_NV_MASK     = (1 << SH_STAGE_CALLABLE_NV),
+    SH_STAGE_TASK_NV_MASK         = (1 << SH_STAGE_TASK_NV),
+    SH_STAGE_MESH_NV_MASK         = (1 << SH_STAGE_MESH_NV),
+} glslang_stage_mask_t;
+
+/* EShSource counterpart */
+typedef enum {
+    SH_SOURCE_NONE,
+    SH_SOURCE_GLSL,
+    SH_SOURCE_HLSL,
+} glslang_source_t;
+
+/* EShClient counterpart */
+typedef enum {
+    SH_CLIENT_NONE,
+    SH_CLIENT_VULKAN,
+    SH_CLIENT_OPENGL,
+} glslang_client_t;
+
+/* EShTargetLanguage counterpart */
+typedef enum {
+    SH_TARGET_NONE,
+    SH_TARGET_SPV,
+} glslang_target_language_t;
+
+/* SH_TARGET_ClientVersion counterpart */
+typedef enum {
+    SH_TARGET_VULKAN_1_0 = (1 << 22),
+    SH_TARGET_VULKAN_1_1 = (1 << 22) | (1 << 12),
+    SH_TARGET_OPENGL_450 = 450,
+} glslang_target_client_version_t;
+
+/* SH_TARGET_LanguageVersion counterpart */
+typedef enum {
+    SH_TARGET_SPV_1_0 = (1 << 16),
+    SH_TARGET_SPV_1_1 = (1 << 16) | (1 << 8),
+    SH_TARGET_SPV_1_2 = (1 << 16) | (2 << 8),
+    SH_TARGET_SPV_1_3 = (1 << 16) | (3 << 8),
+    SH_TARGET_SPV_1_4 = (1 << 16) | (4 << 8),
+    SH_TARGET_SPV_1_5 = (1 << 16) | (5 << 8),
+} glslang_target_language_version_t;
+
+/* EShExecutable counterpart */
+typedef enum {
+    SH_EX_VERTEX_FRAGMENT,
+    SH_EX_FRAGMENT
+} glslang_executable_t;
+
+/* EShOptimizationLevel counterpart  */
+typedef enum {
+    SH_OPT_NO_GENERATION,
+    SH_OPT_NONE,
+    SH_OPT_SIMPLE,
+    SH_OPT_FULL,
+} glslang_optimization_level_t;
+
+/* EShTextureSamplerTransformMode counterpart */
+typedef enum {
+    SH_TEX_SAMP_TRANS_KEEP,
+    SH_TEX_SAMP_TRANS_UPGRADE_TEXTURE_REMOVE_SAMPLER,
+} glslang_texture_sampler_transform_mode_t;
+
+/* EShMessages counterpart */
+typedef enum {
+    SH_MSG_DEFAULT                 = 0,
+    SH_MSG_RELAXED_ERRORS          = (1 << 0),
+    SH_MSG_SUPPRESS_WARNINGS       = (1 << 1),
+    SH_MSG_AST                     = (1 << 2),
+    SH_MSG_SPV_RULES               = (1 << 3),
+    SH_MSG_VULKAN_RULES            = (1 << 4),
+    SH_MSG_ONLY_PREPROCESSOR       = (1 << 5),
+    SH_MSG_READ_HLSL               = (1 << 6),
+    SH_MSG_CASCADING_ERRORS        = (1 << 7),
+    SH_MSG_KEEP_UNCALLED           = (1 << 8),
+    SH_MSG_HLSL_OFFSETS            = (1 << 9),
+    SH_MSG_DEBUG_INFO              = (1 << 10),
+    SH_MSG_HLSL_ENABLE_16BIT_TYPES = (1 << 11),
+    SH_MSG_HLSL_LEGALIZATION       = (1 << 12),
+    SH_MSG_HLSL_DX9_COMPATIBLE     = (1 << 13),
+    SH_MSG_BUILTIN_SYMBOL_TABLE    = (1 << 14),
+} glslang_messages_t;
+
+/* EShReflectionOptions counterpart */
+typedef enum
+{
+    SH_REFLECTION_DEFAULT             = 0,
+    SH_REFLECTION_STRICT_ARRAY_SUFFIX = (1 << 0),
+    SH_REFLECTION_BASIC_ARRAY_SUFFIX  = (1 << 1),
+    SH_REFLECTION_INTERMEDIATE_IOO    = (1 << 2),
+    SH_REFLECTION_SEPARATE_BUFFERS    = (1 << 3),
+    SH_REFLECTION_ALL_BLOCK_VARIABLES = (1 << 4),
+    SH_REFLECTION_UNWRAP_IO_BLOCKS    = (1 << 5),
+} glslang_reflection_options_t;
+
+/* EProfile counterpart (from Versions.h) */
+typedef enum {
+    SH_BAD_PROFILE           = 0,
+    SH_NO_PROFILE            = (1 << 0),
+    SH_CORE_PROFILE          = (1 << 1),
+    SH_COMPATIBILITY_PROFILE = (1 << 2),
+    SH_ES_PROFILE            = (1 << 3)
+} glslang_profile_t;
+
+#endif
+

glslang/Include/glslang_c_interface.h

+/**
+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 */
+