90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
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// Testbench for HLSL resource binding APIs.
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// It does not validate output at the moment, but it's useful for ad-hoc testing.
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#include <spirv_cross_c.h>
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#include <vector>
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#include <stdio.h>
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#include <stdlib.h>
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#define SPVC_CHECKED_CALL(x) do { \
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if ((x) != SPVC_SUCCESS) { \
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fprintf(stderr, "Failed at line %d.\n", __LINE__); \
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exit(1); \
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} \
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} while(0)
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static std::vector<SpvId> read_file(const char *path)
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{
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long len;
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FILE *file = fopen(path, "rb");
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if (!file)
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return {};
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fseek(file, 0, SEEK_END);
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len = ftell(file);
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rewind(file);
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std::vector<SpvId> buffer(len / sizeof(SpvId));
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if (fread(buffer.data(), 1, len, file) != (size_t)len)
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{
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fclose(file);
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return {};
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}
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fclose(file);
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return buffer;
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}
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int main(int argc, char **argv)
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{
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if (argc != 2)
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return EXIT_FAILURE;
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auto buffer = read_file(argv[1]);
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if (buffer.empty())
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return EXIT_FAILURE;
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spvc_context ctx;
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spvc_parsed_ir parsed_ir;
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spvc_compiler compiler;
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SPVC_CHECKED_CALL(spvc_context_create(&ctx));
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SPVC_CHECKED_CALL(spvc_context_parse_spirv(ctx, buffer.data(), buffer.size(), &parsed_ir));
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SPVC_CHECKED_CALL(spvc_context_create_compiler(ctx, SPVC_BACKEND_HLSL, parsed_ir, SPVC_CAPTURE_MODE_TAKE_OWNERSHIP, &compiler));
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spvc_compiler_options opts;
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SPVC_CHECKED_CALL(spvc_compiler_create_compiler_options(compiler, &opts));
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SPVC_CHECKED_CALL(spvc_compiler_options_set_uint(opts, SPVC_COMPILER_OPTION_HLSL_SHADER_MODEL, 51));
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SPVC_CHECKED_CALL(spvc_compiler_install_compiler_options(compiler, opts));
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spvc_hlsl_resource_binding binding;
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spvc_hlsl_resource_binding_init(&binding);
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binding.stage = SpvExecutionModelFragment;
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binding.desc_set = 1;
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binding.binding = 4;
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binding.srv.register_space = 2;
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binding.srv.register_binding = 3;
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binding.sampler.register_space = 4;
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binding.sampler.register_binding = 5;
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SPVC_CHECKED_CALL(spvc_compiler_hlsl_add_resource_binding(compiler, &binding));
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binding.desc_set = SPVC_HLSL_PUSH_CONSTANT_DESC_SET;
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binding.binding = SPVC_HLSL_PUSH_CONSTANT_BINDING;
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binding.cbv.register_space = 0;
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binding.cbv.register_binding = 4;
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SPVC_CHECKED_CALL(spvc_compiler_hlsl_add_resource_binding(compiler, &binding));
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const char *str;
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SPVC_CHECKED_CALL(spvc_compiler_compile(compiler, &str));
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fprintf(stderr, "Output:\n%s\n", str);
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if (!spvc_compiler_hlsl_is_resource_used(compiler, SpvExecutionModelFragment, 1, 4))
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return EXIT_FAILURE;
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if (!spvc_compiler_hlsl_is_resource_used(compiler, SpvExecutionModelFragment, SPVC_HLSL_PUSH_CONSTANT_DESC_SET, SPVC_HLSL_PUSH_CONSTANT_BINDING))
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return EXIT_FAILURE;
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}
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