GLSL to SPIR-V at build-time.

.gitmodules

[submodule "glslang"]
    path = glslang
    url = [email protected]:KhronosGroup/glslang.git

CMakeLists.txt

cmake_minimum_required (VERSION 3.1)

project (spirv)

aux_source_directory (. SRC_LIST)

file (GLOB SHADER_LIST triangle.frag triangle.vert)

add_subdirectory (glslang)
add_custom_command (
    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/triangle.spv.hex
    COMMAND glslangValidator -V -x -o triangle.spv.hex ${SHADER_LIST}
    DEPENDS glslangValidator ${SHADER_LIST}
    )
include_directories (${CMAKE_CURRENT_BINARY_DIR})

add_executable (${PROJECT_NAME} ${SRC_LIST} triangle.spv.hex)
set_property (TARGET ${PROJECT_NAME} PROPERTY CXX_STANDARD 14)

main.cpp

#include <cstdint>
#include <iostream>
#include <vector>

using namespace std;

vector<uint32_t> spirv {
#include "triangle.spv.hex"
};


int main(int argc, char *argv[])
{
    cout << spirv.size() * sizeof(spirv[0]) << endl;
    return 0;
}

triangle.frag

#version 450

layout (location = 0) in vec4 in_color;
layout (location = 0) out vec4 out_color;

void main() {
   out_color = in_color;
}

triangle.vert

#version 450

layout (std140, binding = 0) uniform bufferVals {
    mat4 mvp;
} buffer_vals;

layout (location = 0) in vec4 in_position;
layout (location = 1) in vec4 in_color;
layout (location = 0) out vec4 out_color;

out gl_PerVertex {
    vec4 gl_Position;
};

void main() {
    out_color = in_color;
    gl_Position = buffer_vals.mvp * in_position;
}