BeeEngine/glslang-zig
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Added minimal c header test

Browse source
This commit is contained in:
Kai Angulo 2024-06-04 01:22:17 -07:00
parent 00e3feef01
commit 683fa6854f
3 changed files with 178 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

7
.gitignore vendored
View file

@ -7,8 +7,6 @@ tags
TAGS
bazel-*
build/
zig-cache/
zig-out/
Test/localResults/
External/googletest
External/spirv-tools
@ -25,3 +23,8 @@ tools/
# Random OS stuff
.DS_Store
._*
# Zig
.zig-cache/
zig-cache/
zig-out/

133
StandAlone/minimal-test.cpp Normal file
View file

@ -0,0 +1,133 @@
#include "glslang/Include/glslang_c_interface.h"
#include "glslang/Public/resource_limits_c.h"
#include <iostream>
int main(void)
{
glslang_initialize_process();
glslang_stage_t stage = GLSLANG_STAGE_FRAGMENT;
const char* fileName = u8"ExampleShader.hlsl";
const char* shaderSource = u8R"(
struct VertexInput
{
float2 Position : POSITION;
float4 Color : COLOR0;
};
struct VertexOutput
{
float4 Position : SV_POSITION;
float4 Color : COLOR0;
};
VertexOutput vertex(VertexInput input)
{
VertexOutput output;
output.Position = float4(input.Position, 0, 1);
output.Color = input.Color;
return output;
}
#define DO_SOMETHING(x) x * 10 + 4 - 8 + sqrt(x) / abs(x)
float4 pixel(VertexOutput input) : SV_Target
{
float value = DO_SOMETHING(input.Color.r);
float value2 = DO_SOMETHING(value);
float value3 = DO_SOMETHING(value2);
input.Color *= 10;
input.Color /= 43.55;
input.Color.g = value2;
input.Color.b = value;
input.Color.a = value3;
return input.Color;
}
)";
const glslang_input_t input = {
.language = GLSLANG_SOURCE_HLSL,
.stage = stage,
.client = GLSLANG_CLIENT_VULKAN,
.client_version = GLSLANG_TARGET_VULKAN_1_2,
.target_language = GLSLANG_TARGET_SPV,
.target_language_version = GLSLANG_TARGET_SPV_1_5,
.code = shaderSource,
.entrypoint = "main",
.source_entrypoint = "pixel",
.default_version = 100,
.default_profile = GLSLANG_NO_PROFILE,
.force_default_version_and_profile = false,
.forward_compatible = false,
.messages = GLSLANG_MSG_DEFAULT_BIT,
.resource = glslang_default_resource(),
};
glslang_shader_t* shader = glslang_shader_create(&input);
if (!glslang_shader_preprocess(shader, &input)) {
printf("HLSL preprocessing failed %s\n", fileName);
printf("%s\n", glslang_shader_get_info_log(shader));
printf("%s\n", glslang_shader_get_info_debug_log(shader));
printf("%s\n", input.code);
glslang_shader_delete(shader);
return 1;
}
if (!glslang_shader_parse(shader, &input)) {
printf("HLSL parsing failed %s\n", fileName);
printf("%s\n", glslang_shader_get_info_log(shader));
printf("%s\n", glslang_shader_get_info_debug_log(shader));
printf("%s\n", glslang_shader_get_preprocessed_code(shader));
glslang_shader_delete(shader);
glslang_finalize_process();
return 1;
}
glslang_program_t* program = glslang_program_create();
glslang_program_add_shader(program, shader);
if (!glslang_program_link(program, GLSLANG_MSG_SPV_RULES_BIT | GLSLANG_MSG_VULKAN_RULES_BIT)) {
printf("HLSL linking failed %s\n", fileName);
printf("%s\n", glslang_program_get_info_log(program));
printf("%s\n", glslang_program_get_info_debug_log(program));
glslang_program_delete(program);
glslang_shader_delete(shader);
glslang_finalize_process();
return 1;
}
glslang_program_SPIRV_generate(program, stage);
size_t size = glslang_program_SPIRV_get_size(program);
uint32_t* words = static_cast<uint32_t*>(malloc(size * sizeof(uint32_t)));
glslang_program_SPIRV_get(program, words);
const char* spirv_messages = glslang_program_SPIRV_get_messages(program);
if (spirv_messages)
printf("(%s) %s\b", fileName, spirv_messages);
glslang_program_delete(program);
glslang_shader_delete(shader);
char* disassembled = glslang_SPIRV_disassemble(words, size);
std::cout << "Generated " << size << " SPIR-V words" << std::endl;
std::cout << disassembled << std::endl;
free(disassembled);
free(words);
glslang_finalize_process();
}

50
build.zig
View file

@ -13,7 +13,8 @@ pub fn build(b: *Build) !void {
const enable_opt = !(b.option(bool, "no_opt", "Skip building spirv-tools optimization.") orelse false);
const shared_tools = b.option(bool, "shared_tools", "Build and link spirv-tools as a shared library.") orelse false;
const standalone_glslang = b.option(bool, "standalone", "Build glslang.exe standalone command-line compiler.") orelse false;
const standalone_spvremap = b.option(bool, "standalone-remap", "Build spirv-remap.exe standalone command-line remapper.") orelse false;
const standalone_spvremap = b.option(bool, "standalone_remap", "Build spirv-remap.exe standalone command-line remapper.") orelse false;
const minimal_test_exe = b.option(bool, "minimal_test", "Build a minimal test for linking") orelse false;
if (shared and (standalone_glslang or standalone_spvremap)) {
log.err("Cannot build standalone sources with shared glslang. Recompile without `-Dshared` or `-Dstandalone/-Dstandalone-remap`", .{});
@ -162,7 +163,7 @@ pub fn build(b: *Build) !void {
}
addIncludes(glslang_lib);
addIncludes(b, glslang_lib);
glslang_lib.linkLibCpp();
@ -185,7 +186,7 @@ pub fn build(b: *Build) !void {
.flags = &.{ "-std=c++17" },
});
addIncludes(glslang_exe);
addIncludes(b, glslang_exe);
b.installArtifact(glslang_exe);
glslang_exe.linkLibrary(glslang_lib);
@ -227,7 +228,7 @@ pub fn build(b: *Build) !void {
.flags = &.{ "-std=c++17" },
});
addIncludes(spirv_remap);
addIncludes(b, spirv_remap);
b.installArtifact(spirv_remap);
spirv_remap.linkLibrary(glslang_lib);
@ -236,16 +237,45 @@ pub fn build(b: *Build) !void {
spirv_remap.want_lto = false;
}
}
if (minimal_test_exe) {
const min_test = b.addExecutable(.{
.name = "minimal-test",
.optimize = optimize,
.target = target,
});
if (shared) {
min_test.defineCMacro("GLSLANG_IS_SHARED_LIBRARY", "");
}
const min_test_step = b.step("minimal-test", "Build and install minimal-test.exe");
min_test_step.dependOn(&b.addInstallArtifact(min_test, .{}).step);
min_test.addCSourceFile(.{
.file = b.path("StandAlone/minimal-test.cpp"),
.flags = &.{ "-std=c++17" },
});
addIncludes(b, min_test);
b.installArtifact(min_test);
min_test.linkLibrary(glslang_lib);
if (target.result.os.tag == .windows) {
min_test.want_lto = false;
}
}
}
fn addIncludes(step: *std.Build.Step.Compile) void {
step.addIncludePath(.{ .path = sdkPath("/" ++ output_path) });
step.addIncludePath(.{ .path = sdkPath("/") });
step.addIncludePath(.{ .path = sdkPath("/External/spirv-tools/include") });
fn addIncludes(b: *Build, step: *std.Build.Step.Compile) void {
step.addIncludePath(b.path(output_path));
step.addIncludePath(b.path(""));
step.addIncludePath(b.path("External/spirv-tools/include"));
}
fn ensureCommandExists(allocator: std.mem.Allocator, name: []const u8, exist_check: []const u8) bool {
const result = std.ChildProcess.run(.{
const result = std.process.Child.run(.{
.allocator = allocator,
.argv = &[_][]const u8{ name, exist_check },
.cwd = ".",
@ -273,7 +303,7 @@ fn exec(allocator: std.mem.Allocator, argv: []const []const u8, cwd: []const u8)
}
log.info("{s}", .{buf.items});
var child = std.ChildProcess.init(argv, allocator);
var child = std.process.Child.init(argv, allocator);
child.cwd = cwd;
_ = try child.spawnAndWait();
}