#!/bin/sh
# Regenerates src/debug_spirv.h from debug.vert / debug.frag (needs glslc: the Frame has it in /usr/bin).
set -e
cd "$(dirname "$0")"
glslc -O --target-env=vulkan1.1 -fshader-stage=vert debug.vert -o /tmp/debug.vert.spv
glslc -O --target-env=vulkan1.1 -fshader-stage=frag debug.frag -o /tmp/debug.frag.spv
python3 - /tmp/debug.vert.spv /tmp/debug.frag.spv > ../../src/debug_spirv.h <<'PY'
import struct, sys
print("#pragma once")
print("// GENERATED by tools/debugview/gen_debug_spirv.sh from tools/debugview/debug.{vert,frag}. Do not edit by hand.")
print("//   vert: in vec3 position @0; set0 b0 buffer { Draw { mat4 clipFromModel[2]; mat4 worldFromModel; vec4 color; } d[]; } by gl_InstanceIndex")
print("//   frag: out = color, faceted shading when spec 0 = 1")
print("#include <cstddef>\n#include <cstdint>\n")
for name, path in (("Vert", sys.argv[1]), ("Frag", sys.argv[2])):
    data = open(path, "rb").read()
    words = struct.unpack("<%dI" % (len(data) // 4), data)
    print("static const uint32_t kDebug%sSpirv[] = {" % name)
    for i in range(0, len(words), 8):
        print("    " + ",".join("0x%08x" % w for w in words[i:i + 8]) + ",")
    print("};")
    print("static const size_t kDebug%sSize = sizeof(kDebug%sSpirv);\n" % (name, name))
PY