CInterface: Add OpSource support.

Add interface for `TIntermediate::addSourceText` and `TIntermediate::setSourceFile`.

SPIRV/CInterface/spirv_c_interface.cpp

@@ -36,6 +36,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "SPIRV/Logger.h"
 #include "SPIRV/SpvTools.h"
 
+static_assert(sizeof(glslang_spv_options_t) == sizeof(glslang::SpvOptions), "");
+
 typedef struct glslang_program_s {
     glslang::TProgram* program;
     std::vector<unsigned int> spirv;
@@ -81,13 +83,23 @@ static EShLanguage c_shader_stage(glslang_stage_t stage)
 
 GLSLANG_EXPORT void glslang_program_SPIRV_generate(glslang_program_t* program, glslang_stage_t stage)
 {
+    glslang_spv_options_t spv_options;
+    spv_options.generate_debug_info = false;
+    spv_options.strip_debug_info = false;
+    spv_options.disable_optimizer = true;
+    spv_options.optimize_size = false;
+    spv_options.disassemble = false;
+    spv_options.validate = true;
+
+    glslang_program_SPIRV_generate_with_options(program, stage, &spv_options);
+}
+
+GLSLANG_EXPORT void glslang_program_SPIRV_generate_with_options(glslang_program_t* program, glslang_stage_t stage, glslang_spv_options_t* spv_options) {
     spv::SpvBuildLogger logger;
-    glslang::SpvOptions spvOptions;
-    spvOptions.validate = true;
 
     const glslang::TIntermediate* intermediate = program->program->getIntermediate(c_shader_stage(stage));
 
-    glslang::GlslangToSpv(*intermediate, program->spirv, &logger, &spvOptions);
+    glslang::GlslangToSpv(*intermediate, program->spirv, &logger, reinterpret_cast<glslang::SpvOptions*>(spv_options));
 
     program->loggerMessages = logger.getAllMessages();
 }

glslang/CInterface/glslang_c_interface.cpp

@@ -38,6 +38,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "glslang/Include/ResourceLimits.h"
 #include "glslang/MachineIndependent/Versions.h"
+#include "glslang/MachineIndependent/localintermediate.h"
 
 static_assert(int(GLSLANG_STAGE_COUNT) == EShLangCount, "");
 static_assert(int(GLSLANG_STAGE_MASK_COUNT) == EShLanguageMaskCount, "");
@@ -455,6 +456,16 @@ GLSLANG_EXPORT int glslang_program_link(glslang_program_t* program, int messages
     return (int)program->program->link((EShMessages)messages);
 }
 
+GLSLANG_EXPORT void glslang_program_add_source_text(glslang_program_t* program, glslang_stage_t stage, const char* text, size_t len) {
+    glslang::TIntermediate* intermediate = program->program->getIntermediate(c_shader_stage(stage));
+    intermediate->addSourceText(text, len);
+}
+
+GLSLANG_EXPORT void glslang_program_set_source_file(glslang_program_t* program, glslang_stage_t stage, const char* file) {
+    glslang::TIntermediate* intermediate = program->program->getIntermediate(c_shader_stage(stage));
+    intermediate->setSourceFile(file);
+}
+
 GLSLANG_EXPORT int glslang_program_map_io(glslang_program_t* program)
 {
     return (int)program->program->mapIO();

glslang/Include/glslang_c_interface.h

@@ -199,6 +199,16 @@ typedef struct glsl_include_callbacks_s {
     glsl_free_include_result_func free_include_result;
 } glsl_include_callbacks_t;
 
+/* SpvOptions counterpart */
+typedef struct glslang_spv_options_s {
+    bool generate_debug_info;
+    bool strip_debug_info;
+    bool disable_optimizer;
+    bool optimize_size;
+    bool disassemble;
+    bool validate;
+} glslang_spv_options_t;
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -238,8 +248,11 @@ GLSLANG_EXPORT glslang_program_t* glslang_program_create();
 GLSLANG_EXPORT void glslang_program_delete(glslang_program_t* program);
 GLSLANG_EXPORT void glslang_program_add_shader(glslang_program_t* program, glslang_shader_t* shader);
 GLSLANG_EXPORT int glslang_program_link(glslang_program_t* program, int messages); // glslang_messages_t
+GLSLANG_EXPORT void glslang_program_add_source_text(glslang_program_t* program, glslang_stage_t stage, const char* text, size_t len);
+GLSLANG_EXPORT void glslang_program_set_source_file(glslang_program_t* program, glslang_stage_t stage, const char* file);
 GLSLANG_EXPORT int glslang_program_map_io(glslang_program_t* program);
 GLSLANG_EXPORT void glslang_program_SPIRV_generate(glslang_program_t* program, glslang_stage_t stage);
+GLSLANG_EXPORT void glslang_program_SPIRV_generate_with_options(glslang_program_t* program, glslang_stage_t stage, glslang_spv_options_t* spv_options);
 GLSLANG_EXPORT size_t glslang_program_SPIRV_get_size(glslang_program_t* program);
 GLSLANG_EXPORT void glslang_program_SPIRV_get(glslang_program_t* program, unsigned int*);
 GLSLANG_EXPORT unsigned int* glslang_program_SPIRV_get_ptr(glslang_program_t* program);