Add a C API smoke test.

1 files changed, 156 insertions, 0 deletions

diff --git a/tests-other/c_api_test.c b/tests-other/c_api_test.c
new file mode 100644
index 00000000..60cbbba0
--- /dev/null
+++ b/tests-other/c_api_test.c
@@ -0,0 +1,156 @@
+/* Smoke test for the C API. */
+
+#include <spirv_cross_c.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#define SPVC_CHECKED_CALL(x) do { \
+	if ((x) != SPVC_SUCCESS) { \
+		fprintf(stderr, "Failed at line %d.\n", __LINE__); \
+		exit(1); \
+	} \
+} while(0)
+#define SPVC_CHECKED_CALL_NEGATIVE(x) do { \
+	g_fail_on_error = SPVC_FALSE; \
+	if ((x) == SPVC_SUCCESS) { \
+		fprintf(stderr, "Failed at line %d.\n", __LINE__); \
+		exit(1); \
+	} \
+	g_fail_on_error = SPVC_TRUE; \
+} while(0)
+
+static int read_file(const char *path, SpvId **buffer, size_t *word_count)
+{
+	long len;
+	FILE *file = fopen(path, "rb");
+
+	if (!file)
+		return -1;
+
+	fseek(file, 0, SEEK_END);
+	len = ftell(file);
+	rewind(file);
+
+	*buffer = malloc(len);
+	if (fread(*buffer, 1, len, file) != (size_t)len)
+	{
+		fclose(file);
+		free(*buffer);
+		return -1;
+	}
+
+	fclose(file);
+	*word_count = len / sizeof(SpvId);
+	return 0;
+}
+
+static spvc_bool g_fail_on_error = SPVC_TRUE;
+
+static void error_callback(void *userdata, const char *error)
+{
+	(void)userdata;
+	if (g_fail_on_error)
+	{
+		fprintf(stderr, "Error: %s\n", error);
+		exit(1);
+	}
+	else
+		printf("Expected error hit: %s.\n", error);
+}
+
+static void dump_resource_list(spvc_compiler compiler, spvc_resources resources, spvc_resource_type type, const char *tag)
+{
+	const spvc_reflected_resource *list = NULL;
+	size_t count = 0;
+	size_t i;
+	SPVC_CHECKED_CALL(spvc_resources_get_resource_list_for_type(resources, type, &list, &count));
+	printf("%s\n", tag);
+	for (i = 0; i < count; i++)
+	{
+		printf("ID: %u, BaseTypeID: %u, TypeID: %u, Name: %s\n", list[i].id, list[i].base_type_id, list[i].type_id,
+		       list[i].name);
+		printf("  Set: %u, Binding: %u\n",
+		       spvc_compiler_get_decoration(compiler, list[i].id, SpvDecorationDescriptorSet),
+		       spvc_compiler_get_decoration(compiler, list[i].id, SpvDecorationBinding));
+	}
+}
+
+static void dump_resources(spvc_compiler compiler, spvc_resources resources)
+{
+	dump_resource_list(compiler, resources, SPVC_RESOURCE_TYPE_UNIFORM_BUFFER, "UBO");
+	dump_resource_list(compiler, resources, SPVC_RESOURCE_TYPE_STORAGE_BUFFER, "SSBO");
+	dump_resource_list(compiler, resources, SPVC_RESOURCE_TYPE_PUSH_CONSTANT, "Push");
+	dump_resource_list(compiler, resources, SPVC_RESOURCE_TYPE_SEPARATE_SAMPLERS, "Samplers");
+	dump_resource_list(compiler, resources, SPVC_RESOURCE_TYPE_SEPARATE_IMAGE, "Image");
+	dump_resource_list(compiler, resources, SPVC_RESOURCE_TYPE_SAMPLED_IMAGE, "Combined image samplers");
+	dump_resource_list(compiler, resources, SPVC_RESOURCE_TYPE_STAGE_INPUT, "Stage input");
+	dump_resource_list(compiler, resources, SPVC_RESOURCE_TYPE_STAGE_OUTPUT, "Stage output");
+	dump_resource_list(compiler, resources, SPVC_RESOURCE_TYPE_STORAGE_IMAGE, "Storage image");
+	dump_resource_list(compiler, resources, SPVC_RESOURCE_TYPE_SUBPASS_INPUT, "Subpass input");
+}
+
+static void compile(spvc_compiler compiler, const char *tag)
+{
+	const char *result = NULL;
+	SPVC_CHECKED_CALL(spvc_compiler_compile(compiler, &result));
+	printf("\n%s\n=======\n", tag);
+	printf("%s\n=======\n", result);
+}
+
+int main(int argc, char **argv)
+{
+	spvc_context context = NULL;
+	spvc_parsed_ir ir = NULL;
+	spvc_compiler compiler_glsl = NULL;
+	spvc_compiler compiler_hlsl = NULL;
+	spvc_compiler compiler_msl = NULL;
+	spvc_compiler compiler_cpp = NULL;
+	spvc_compiler compiler_json = NULL;
+	spvc_compiler compiler_none = NULL;
+	spvc_compiler_options options = NULL;
+	spvc_resources resources = NULL;
+	SpvId *buffer = NULL;
+	size_t word_count = 0;
+
+	if (argc != 2)
+		return 1;
+
+	if (read_file(argv[1], &buffer, &word_count) < 0)
+		return 1;
+
+	SPVC_CHECKED_CALL(spvc_context_create(&context));
+	spvc_context_set_error_callback(context, error_callback, NULL);
+	SPVC_CHECKED_CALL(spvc_context_parse_spirv(context, buffer, word_count, &ir));
+	SPVC_CHECKED_CALL(spvc_context_create_compiler(context, SPVC_BACKEND_GLSL, ir, SPVC_CAPTURE_MODE_COPY, &compiler_glsl));
+	SPVC_CHECKED_CALL(spvc_context_create_compiler(context, SPVC_BACKEND_HLSL, ir, SPVC_CAPTURE_MODE_COPY, &compiler_hlsl));
+	SPVC_CHECKED_CALL(spvc_context_create_compiler(context, SPVC_BACKEND_MSL, ir, SPVC_CAPTURE_MODE_COPY, &compiler_msl));
+	SPVC_CHECKED_CALL(spvc_context_create_compiler(context, SPVC_BACKEND_CPP, ir, SPVC_CAPTURE_MODE_COPY, &compiler_cpp));
+	SPVC_CHECKED_CALL(spvc_context_create_compiler(context, SPVC_BACKEND_JSON, ir, SPVC_CAPTURE_MODE_COPY, &compiler_json));
+	SPVC_CHECKED_CALL(spvc_context_create_compiler(context, SPVC_BACKEND_NONE, ir, SPVC_CAPTURE_MODE_TAKE_OWNERSHIP, &compiler_none));
+
+	SPVC_CHECKED_CALL(spvc_compiler_create_compiler_options(compiler_none, &options));
+	SPVC_CHECKED_CALL(spvc_compiler_install_compiler_options(compiler_none, options));
+	SPVC_CHECKED_CALL(spvc_compiler_create_compiler_options(compiler_json, &options));
+	SPVC_CHECKED_CALL(spvc_compiler_install_compiler_options(compiler_json, options));
+	SPVC_CHECKED_CALL(spvc_compiler_create_compiler_options(compiler_cpp, &options));
+	SPVC_CHECKED_CALL(spvc_compiler_install_compiler_options(compiler_cpp, options));
+	SPVC_CHECKED_CALL(spvc_compiler_create_compiler_options(compiler_msl, &options));
+	SPVC_CHECKED_CALL(spvc_compiler_install_compiler_options(compiler_msl, options));
+	SPVC_CHECKED_CALL(spvc_compiler_create_compiler_options(compiler_hlsl, &options));
+	SPVC_CHECKED_CALL(spvc_compiler_options_set_uint(options, SPVC_COMPILER_OPTION_HLSL_SHADER_MODEL, 50));
+	SPVC_CHECKED_CALL_NEGATIVE(spvc_compiler_options_set_uint(options, SPVC_COMPILER_OPTION_MSL_PLATFORM, 1));
+	SPVC_CHECKED_CALL(spvc_compiler_install_compiler_options(compiler_hlsl, options));
+	SPVC_CHECKED_CALL(spvc_compiler_create_compiler_options(compiler_glsl, &options));
+	SPVC_CHECKED_CALL(spvc_compiler_install_compiler_options(compiler_glsl, options));
+
+	SPVC_CHECKED_CALL(spvc_compiler_create_shader_resources(compiler_none, &resources));
+	dump_resources(compiler_none, resources);
+	compile(compiler_glsl, "GLSL");
+	compile(compiler_hlsl, "HLSL");
+	compile(compiler_msl, "MSL");
+	compile(compiler_json, "JSON");
+	compile(compiler_cpp, "CPP");
+
+	spvc_context_destroy(context);
+	return 0;
+}