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renderdoc/renderdoc/data/glsl_shaders.cpp
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/******************************************************************************
* The MIT License (MIT)
*
* Copyright (c) 2019-2025 Baldur Karlsson
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
#include "glsl_shaders.h"
#include "common/common.h"
#include "common/formatting.h"
#include "common/threading.h"
#include "driver/shaders/spirv/glslang_compile.h"
#include "glslang/glslang/Public/ResourceLimits.h"
#include "glslang/glslang/Public/ShaderLang.h"
#include "os/os_specific.h"
#define GLSL_HEADERS(HEADER) \
HEADER(glsl_globals) \
HEADER(glsl_ubos) \
HEADER(vk_texsample) \
HEADER(gl_texsample) \
HEADER(gles_texsample)
#define HLSL_HEADERS(HEADER) HEADER(quadswizzle)
class EmbeddedIncluder : public glslang::TShader::Includer
{
#define DECL(header) rdcstr header = GetEmbeddedResource(CONCAT(glsl_, CONCAT(header, _h)));
GLSL_HEADERS(DECL)
#undef DECL
rdcstr quadswizzle = GetEmbeddedResource(hlsl_quadswizzle_hlsl);
public:
// For the "system" or <>-style includes; search the "system" paths.
virtual IncludeResult *includeSystem(const char *headerName, const char *includerName,
size_t inclusionDepth) override
{
#define GET(header) \
if(!strcmp(headerName, STRINGIZE(header) ".h")) \
return new IncludeResult(headerName, header.data(), header.length(), NULL);
GLSL_HEADERS(GET)
#undef GET
if(!strcmp(headerName, "quadswizzle.hlsl"))
{
return new IncludeResult("quadswizzle.hlsl", quadswizzle.data(), quadswizzle.length(), NULL);
}
return NULL;
}
// For the "local"-only aspect of a "" include. Should not search in the
// "system" paths, because on returning a failure, the parser will
// call includeSystem() to look in the "system" locations.
virtual IncludeResult *includeLocal(const char *headerName, const char *includerName,
size_t inclusionDepth) override
{
return includeSystem(headerName, includerName, inclusionDepth);
}
virtual void releaseInclude(IncludeResult *result) override { delete result; }
};
rdcstr GenerateGLSLShader(const rdcstr &shader, ShaderType type, int version, const rdcstr &defines)
{
// shader stage doesn't matter for us since we're just pre-processing.
glslang::TShader sh(EShLangFragment);
rdcstr combined;
if(type == ShaderType::GLSLES)
{
if(version == 100)
combined = "#version 100\n"; // no es suffix
else
combined = StringFormat::Fmt("#version %d es\n", version);
}
else
{
if(version == 110)
combined = "#version 110\n"; // no core suffix
else
combined = StringFormat::Fmt("#version %d core\n", version);
}
// glslang requires the google extension, but we don't want it in the final shader, so remember it
// and remove it later.
rdcstr include_ext = "#extension GL_GOOGLE_include_directive : require\n";
combined += include_ext;
if(type == ShaderType::GLSLES)
combined +=
"#define OPENGL 1\n"
"#define OPENGL_ES 1\n";
else if(type == ShaderType::GLSL)
combined +=
"#define OPENGL 1\n"
"#define OPENGL_CORE 1\n";
combined += defines;
combined += shader;
const char *c_src = combined.c_str();
glslang::EShClient client = type == ShaderType::Vulkan ? glslang::EShClientVulkan
: type == ShaderType::GLSPIRV ? glslang::EShClientOpenGL
: glslang::EShClientNone;
glslang::EShTargetClientVersion targetversion =
type == ShaderType::Vulkan ? glslang::EShTargetVulkan_1_0 : glslang::EShTargetOpenGL_450;
int inputVersion = client != glslang::EShClientNone ? 100 : 0;
sh.setStrings(&c_src, 1);
sh.setEnvInput(glslang::EShSourceGlsl, EShLangFragment, client, inputVersion);
sh.setEnvClient(client, targetversion);
sh.setEnvTarget(glslang::EShTargetNone, glslang::EShTargetSpv_1_0);
EmbeddedIncluder incl;
EShMessages flags = EShMsgOnlyPreprocessor;
if(type == ShaderType::Vulkan)
flags = EShMessages(flags | EShMsgSpvRules | EShMsgVulkanRules);
else if(type == ShaderType::GLSPIRV)
flags = EShMessages(flags | EShMsgSpvRules);
rdcstr ret;
bool success;
{
static Threading::CriticalSection *lock = new Threading::CriticalSection();
SCOPED_LOCK(*lock);
std::string outstr;
success =
sh.preprocess(GetDefaultResources(), 100, ENoProfile, false, false, flags, &outstr, incl);
ret.assign(outstr.c_str(), outstr.size());
}
int offs = ret.find(include_ext);
if(offs >= 0)
ret.erase(offs, include_ext.size());
// strip any #line directives that got added
offs = ret.find("\n#line ");
while(offs >= 0)
{
int eol = ret.find('\n', offs + 2);
if(eol < 0)
ret.erase(offs + 1, ~0U);
else
ret.erase(offs + 1, eol - offs);
offs = ret.find("\n#line ", offs);
}
if(!success)
{
RDCLOG("glslang failed to build internal shader:\n\n%s\n\n%s", sh.getInfoLog(),
sh.getInfoDebugLog());
return "";
}
return ret;
}
static bool isspacetab(char c)
{
return c == '\t' || c == ' ';
}
static bool isnewline(char c)
{
return c == '\r' || c == '\n';
}
rdcstr InsertSnippetAfterVersion(ShaderType type, const char *source, int len, const char *snippet)
{
// we require these enums to be compatible elsewhere
glslang::TShader sh(EShLangFragment);
glslang::EShClient client =
type == ShaderType::Vulkan ? glslang::EShClientVulkan : glslang::EShClientNone;
glslang::EShTargetClientVersion targetversion =
type == ShaderType::Vulkan ? glslang::EShTargetVulkan_1_0 : glslang::EShTargetOpenGL_450;
int inputVersion = client != glslang::EShClientNone ? 100 : 0;
sh.setStringsWithLengths(&source, &len, 1);
sh.setEnvInput(glslang::EShSourceGlsl, EShLangFragment, client, inputVersion);
sh.setEnvClient(client, targetversion);
sh.setEnvTarget(glslang::EShTargetNone, glslang::EShTargetSpv_1_0);
glslang::TShader::ForbidIncluder incl;
bool success;
EShMessages flags = EShMsgOnlyPreprocessor;
if(type == ShaderType::Vulkan)
flags = EShMessages(flags | EShMsgSpvRules | EShMsgVulkanRules);
else if(type == ShaderType::GLSPIRV)
flags = EShMessages(flags | EShMsgSpvRules);
rdcstr src;
std::string outstr;
{
success =
sh.preprocess(GetDefaultResources(), 100, ENoProfile, false, false, flags, &outstr, incl);
src.assign(outstr.c_str(), outstr.size());
}
// find if this source contains a #version, accounting for whitespace. It must be the first thing
// (except for whitespace and comments, and comments have been removed)
int32_t it = src.find("#");
len = src.count();
if(it >= 0)
{
// advance past the #
++it;
// skip whitespace
while(it < len && isspacetab(src[it]))
++it;
if(it + 7 < len && !strncmp(&src[it], "version", 7))
{
it = src.find_first_of("\r\n", it);
while(it < len && isnewline(src[it]))
it++;
// it points after the #version statement
}
else
{
it = -1;
}
}
// no #version statement found - insert our own
if(it < 0)
{
rdcstr version = "#version 430 core\n\n";
src.insert(0, version);
it = version.count();
}
src.insert(it, snippet);
return src;
}
#if ENABLED(ENABLE_UNIT_TESTS)
#include "catch/catch.hpp"
#include "driver/shaders/spirv/spirv_reflect.h"
// define tests of GLSL reflection that can be re-used by both GL emulated and SPIR-V reflection
void TestGLSLReflection(ShaderType testType, ReflectionMaker compile)
{
#define REQUIRE_ARRAY_SIZE(size, min) \
REQUIRE(size >= min); \
CHECK(size == min);
if(testType == ShaderType::GLSL || testType == ShaderType::GLSPIRV)
{
// test GL only features
SECTION("GL global uniforms")
{
rdcstr source = R"(
#version 450 core
layout(location = 100) uniform vec3 global_var[5];
layout(location = 200) uniform mat3x2 global_var2[3];
void main() {
gl_FragDepth = global_var[4].y + global_var2[2][2][0];
}
)";
ShaderReflection refl;
compile(ShaderStage::Fragment, source, "main", refl);
if(testType == ShaderType::GLSPIRV)
CHECK(refl.encoding == ShaderEncoding::OpenGLSPIRV);
else
CHECK(refl.encoding == ShaderEncoding::GLSL);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.samplers.size(), 0);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 1);
{
CHECK(refl.constantBlocks[0].name == "$Globals");
{
const ConstantBlock &cblock = refl.constantBlocks[0];
INFO("UBO: " << cblock.name.c_str());
CHECK(!cblock.bufferBacked);
CHECK(!cblock.compileConstants);
REQUIRE_ARRAY_SIZE(cblock.variables.size(), 2);
{
CHECK(cblock.variables[0].name == "global_var");
{
const ShaderConstant &member = cblock.variables[0];
INFO("UBO member: " << member.name.c_str());
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.rows == 1);
CHECK(member.type.columns == 3);
CHECK(member.type.elements == 5);
}
CHECK(cblock.variables[1].name == "global_var2");
{
const ShaderConstant &member = cblock.variables[1];
INFO("UBO member: " << member.name.c_str());
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.rows == 2);
CHECK(member.type.columns == 3);
CHECK(member.type.elements == 3);
CHECK(member.type.ColMajor());
}
}
}
}
};
SECTION("GL atomic counters")
{
rdcstr source = R"(
#version 450 core
layout(binding = 0) uniform atomic_uint atom;
void main() {
gl_FragDepth = float(atomicCounter(atom));
}
)";
ShaderReflection refl;
compile(ShaderStage::Fragment, source, "main", refl);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 0);
REQUIRE_ARRAY_SIZE(refl.samplers.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 1);
{
CHECK(refl.readWriteResources[0].name == "atom");
{
const ShaderResource &res = refl.readWriteResources[0];
INFO("read-write resource: " << res.name.c_str());
// GLSL does not have register bindings as they're dynamic
if(testType != ShaderType::GLSL)
{
CHECK(res.fixedBindSetOrSpace == 0);
CHECK(res.fixedBindNumber == 0);
}
CHECK(res.bindArraySize == 1);
CHECK(res.textureType == TextureType::Buffer);
CHECK(res.variableType.members.empty());
CHECK(res.variableType.baseType == VarType::UInt);
CHECK(res.variableType.rows == 1);
CHECK(res.variableType.columns == 1);
}
}
};
}
else if(testType == ShaderType::Vulkan)
{
// test Vulkan only features
SECTION("Vulkan separate sampler objects")
{
rdcstr source = R"(
#version 450 core
layout (set=1, binding=2) uniform sampler S;
layout (set=2, binding=4) uniform texture2D T;
layout (set=2, binding=5) uniform sampler2D ST;
void main() {
gl_FragDepth = textureLod(ST, gl_FragCoord.xy, gl_FragCoord.z).z +
textureLod(sampler2D(T, S), gl_FragCoord.xy, gl_FragCoord.z).z;
}
)";
ShaderReflection refl;
compile(ShaderStage::Fragment, source, "main", refl);
CHECK(refl.encoding == ShaderEncoding::SPIRV);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 0);
REQUIRE_ARRAY_SIZE(refl.samplers.size(), 1);
{
CHECK(refl.samplers[0].name == "S");
{
const ShaderSampler &samp = refl.samplers[0];
INFO("read-only resource: " << samp.name.c_str());
// GLSL does not have register bindings as they're dynamic
if(testType != ShaderType::GLSL)
{
CHECK(samp.fixedBindSetOrSpace == 1);
CHECK(samp.fixedBindNumber == 2);
}
CHECK(samp.bindArraySize == 1);
}
}
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 2);
{
CHECK(refl.readOnlyResources[0].name == "T");
{
const ShaderResource &res = refl.readOnlyResources[0];
INFO("read-only resource: " << res.name.c_str());
// GLSL does not have register bindings as they're dynamic
if(testType != ShaderType::GLSL)
{
CHECK(res.fixedBindSetOrSpace == 2);
CHECK(res.fixedBindNumber == 4);
}
CHECK(res.bindArraySize == 1);
CHECK(res.textureType == TextureType::Texture2D);
CHECK(res.variableType.members.empty());
CHECK(res.variableType.baseType == VarType::Float);
}
CHECK(refl.readOnlyResources[1].name == "ST");
{
const ShaderResource &res = refl.readOnlyResources[1];
INFO("read-only resource: " << res.name.c_str());
// GLSL does not have register bindings as they're dynamic
if(testType != ShaderType::GLSL)
{
CHECK(res.fixedBindSetOrSpace == 2);
CHECK(res.fixedBindNumber == 5);
}
CHECK(res.bindArraySize == 1);
CHECK(res.textureType == TextureType::Texture2D);
CHECK(res.variableType.members.empty());
CHECK(res.variableType.baseType == VarType::Float);
}
}
};
SECTION("Vulkan specialization constants")
{
rdcstr source = R"(
#version 450 core
layout(constant_id = 17) const int foo = 12;
layout(constant_id = 19) const float bar = 0.5f;
void main() {
gl_FragDepth = float(foo) + bar;
}
)";
ShaderReflection refl;
compile(ShaderStage::Fragment, source, "main", refl);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.samplers.size(), 0);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 1);
{
CHECK(refl.constantBlocks[0].name == "Specialization Constants");
{
const ConstantBlock &cblock = refl.constantBlocks[0];
INFO("UBO: " << cblock.name.c_str());
CHECK(cblock.bindArraySize == 1);
CHECK(!cblock.bufferBacked);
CHECK(cblock.compileConstants);
CHECK(cblock.byteSize == 0);
REQUIRE_ARRAY_SIZE(cblock.variables.size(), 2);
{
CHECK(cblock.variables[0].name == "foo");
{
const ShaderConstant &member = cblock.variables[0];
INFO("UBO member: " << member.name.c_str());
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::SInt);
CHECK(member.type.rows == 1);
CHECK(member.type.columns == 1);
CHECK(member.type.name == "int");
CHECK(member.byteOffset == 0);
CHECK(member.defaultValue == 12);
}
CHECK(cblock.variables[1].name == "bar");
{
const ShaderConstant &member = cblock.variables[1];
INFO("UBO member: " << member.name.c_str());
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.rows == 1);
CHECK(member.type.columns == 1);
CHECK(member.type.name == "float");
CHECK(member.byteOffset == 8);
float defaultValueFloat;
memcpy(&defaultValueFloat, &member.defaultValue, sizeof(float));
CHECK(defaultValueFloat == 0.5f);
}
}
}
}
};
SECTION("Vulkan push constants")
{
rdcstr source = R"(
#version 450 core
layout(push_constant) uniform push
{
int a;
float b;
uvec2 c;
} push_data;
void main() {
gl_FragDepth = push_data.b;
}
)";
ShaderReflection refl;
compile(ShaderStage::Fragment, source, "main", refl);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.samplers.size(), 0);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 1);
{
CHECK(refl.constantBlocks[0].name == "push_data");
{
const ConstantBlock &cblock = refl.constantBlocks[0];
INFO("UBO: " << cblock.name.c_str());
CHECK(cblock.bindArraySize == 1);
CHECK(!cblock.bufferBacked);
CHECK(!cblock.compileConstants);
CHECK(cblock.byteSize == 16);
REQUIRE_ARRAY_SIZE(cblock.variables.size(), 3);
{
CHECK(cblock.variables[0].name == "a");
{
const ShaderConstant &member = cblock.variables[0];
INFO("UBO member: " << member.name.c_str());
CHECK(member.byteOffset == 0);
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::SInt);
CHECK(member.type.rows == 1);
CHECK(member.type.columns == 1);
CHECK(member.type.name == "int");
}
CHECK(cblock.variables[1].name == "b");
{
const ShaderConstant &member = cblock.variables[1];
INFO("UBO member: " << member.name.c_str());
CHECK(member.byteOffset == 4);
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.rows == 1);
CHECK(member.type.columns == 1);
}
CHECK(cblock.variables[2].name == "c");
{
const ShaderConstant &member = cblock.variables[2];
INFO("UBO member: " << member.name.c_str());
CHECK(member.byteOffset == 8);
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::UInt);
CHECK(member.type.rows == 1);
CHECK(member.type.columns == 2);
}
}
}
}
};
}
else
{
RDCFATAL("Unexpected test type");
}
SECTION("Debug information")
{
rdcstr source = R"(
#version 450 core
layout(location = 3) in vec2 a_input;
layout(location = 6) flat in uvec3 z_input;
layout(location = 0) out vec4 a_output;
layout(location = 1) out vec3 z_output;
layout(location = 2) out int b_output;
void main() {
a_output = vec4(a_input.y + gl_FragCoord.x, 0, 0, 1);
z_output = vec3(a_output.xy, a_output.z);
b_output = int(z_input.x);
gl_FragDepth = float(z_output.y);
}
)";
ShaderReflection refl;
compile(ShaderStage::Fragment, source, "main", refl);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.samplers.size(), 0);
CHECK(refl.entryPoint == "main");
CHECK(refl.stage == ShaderStage::Fragment);
CHECK(refl.debugInfo.encoding == ShaderEncoding::GLSL);
REQUIRE(refl.debugInfo.files.size() == 1);
CHECK(refl.debugInfo.files[0].contents == source);
if(testType == ShaderType::GLSL)
{
CHECK(refl.debugInfo.files[0].filename == "main.glsl");
}
else
{
CHECK(refl.debugInfo.files[0].filename == "source0.glsl");
REQUIRE(refl.debugInfo.compileFlags.flags.size() == 3);
CHECK(refl.debugInfo.compileFlags.flags[0].name == "@cmdline");
if(testType == ShaderType::GLSPIRV)
CHECK(refl.debugInfo.compileFlags.flags[0].value ==
" --client opengl100 --target-env opengl --entry-point main");
else
CHECK(refl.debugInfo.compileFlags.flags[0].value ==
" --client vulkan100 --target-env vulkan1.0 --entry-point main");
CHECK(refl.debugInfo.compileFlags.flags[1].name == "@spirver");
CHECK(refl.debugInfo.compileFlags.flags[1].value == "spirv1.0");
CHECK(refl.debugInfo.compileFlags.flags[2].name == "preferSourceDebug");
CHECK(refl.debugInfo.compileFlags.flags[2].value == "1");
}
};
SECTION("Input and output signatures")
{
rdcstr source = R"(
#version 450 core
layout(location = 3) in vec2 a_input;
layout(location = 6) flat in uvec3 z_input;
layout(location = 0) out vec4 a_output;
layout(location = 1) out vec3 z_output;
layout(location = 2) out int b_output;
void main() {
a_output = vec4(a_input.y + gl_FragCoord.x, 0, 0, 1);
z_output = vec3(a_output.xy, a_output.z);
b_output = int(z_input.x);
gl_FragDepth = float(z_output.y);
}
)";
ShaderReflection refl;
compile(ShaderStage::Fragment, source, "main", refl);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.samplers.size(), 0);
REQUIRE_ARRAY_SIZE(refl.inputSignature.size(), 3);
{
CHECK(refl.inputSignature[0].varName == "gl_FragCoord");
{
const SigParameter &sig = refl.inputSignature[0];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::Position);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 4);
CHECK(sig.regChannelMask == 0xf);
CHECK(sig.channelUsedMask == 0xf);
}
CHECK(refl.inputSignature[1].varName == "a_input");
{
const SigParameter &sig = refl.inputSignature[1];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 3);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 2);
CHECK(sig.regChannelMask == 0x3);
CHECK(sig.channelUsedMask == 0x3);
}
CHECK(refl.inputSignature[2].varName == "z_input");
{
const SigParameter &sig = refl.inputSignature[2];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 6);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::UInt);
CHECK(sig.compCount == 3);
CHECK(sig.regChannelMask == 0x7);
CHECK(sig.channelUsedMask == 0x7);
}
}
REQUIRE_ARRAY_SIZE(refl.outputSignature.size(), 4);
{
CHECK(refl.outputSignature[0].varName == "a_output");
{
const SigParameter &sig = refl.outputSignature[0];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::ColorOutput);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 4);
CHECK(sig.regChannelMask == 0xf);
CHECK(sig.channelUsedMask == 0xf);
}
CHECK(refl.outputSignature[1].varName == "z_output");
{
const SigParameter &sig = refl.outputSignature[1];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 1);
CHECK(sig.systemValue == ShaderBuiltin::ColorOutput);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 3);
CHECK(sig.regChannelMask == 0x7);
CHECK(sig.channelUsedMask == 0x7);
}
CHECK(refl.outputSignature[2].varName == "b_output");
{
const SigParameter &sig = refl.outputSignature[2];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 2);
CHECK(sig.systemValue == ShaderBuiltin::ColorOutput);
CHECK(sig.varType == VarType::SInt);
CHECK(sig.compCount == 1);
CHECK(sig.regChannelMask == 0x1);
CHECK(sig.channelUsedMask == 0x1);
}
CHECK(refl.outputSignature[3].varName == "gl_FragDepth");
{
const SigParameter &sig = refl.outputSignature[3];
INFO("signature element: " << sig.varName.c_str());
// when not running with a driver we default to just using the index instead of looking up
// the location of outputs, so this will be wrong
// CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::DepthOutput);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 1);
CHECK(sig.regChannelMask == 0x1);
CHECK(sig.channelUsedMask == 0x1);
}
}
};
SECTION("constant buffers")
{
rdcstr source = R"(
#version 450 core
struct glstruct
{
float a;
int b;
mat2x2 c;
};
layout(binding = 8, std140) uniform ubo_block {
float ubo_a;
layout(column_major) mat4x3 ubo_b;
layout(row_major) mat4x3 ubo_c;
ivec2 ubo_d;
vec2 ubo_e[3];
glstruct ubo_f;
layout(offset = 256) vec4 ubo_z;
} ubo_root;
void main() {
gl_FragDepth = ubo_root.ubo_a;
}
)";
ShaderReflection refl;
compile(ShaderStage::Fragment, source, "main", refl);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.samplers.size(), 0);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 1);
{
// blocks get different reflected names in SPIR-V
const rdcstr ubo_name = testType == ShaderType::GLSL ? "ubo_block" : "ubo_root";
CHECK(refl.constantBlocks[0].name == ubo_name);
{
const ConstantBlock &cblock = refl.constantBlocks[0];
INFO("UBO: " << cblock.name.c_str());
// GLSL does not have register bindings as they're dynamic
if(testType != ShaderType::GLSL)
{
CHECK(cblock.fixedBindSetOrSpace == 0);
CHECK(cblock.fixedBindNumber == 8);
}
CHECK(cblock.bindArraySize == 1);
CHECK(cblock.bufferBacked);
CHECK(cblock.byteSize == 272);
// GLSL reflects out a root structure
if(testType == ShaderType::GLSL)
{
REQUIRE_ARRAY_SIZE(cblock.variables.size(), 1);
CHECK(cblock.variables[0].name == ubo_name);
}
const rdcarray<ShaderConstant> &ubo_root =
testType == ShaderType::GLSL ? cblock.variables[0].type.members : cblock.variables;
REQUIRE_ARRAY_SIZE(ubo_root.size(), 7);
{
CHECK(ubo_root[0].name == "ubo_a");
{
const ShaderConstant &member = ubo_root[0];
INFO("UBO member: " << member.name.c_str());
CHECK(member.byteOffset == 0);
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.rows == 1);
CHECK(member.type.columns == 1);
CHECK(member.type.name == "float");
}
CHECK(ubo_root[1].name == "ubo_b");
{
const ShaderConstant &member = ubo_root[1];
INFO("UBO member: " << member.name.c_str());
CHECK(member.byteOffset == 16);
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.rows == 3);
CHECK(member.type.columns == 4);
CHECK(member.type.ColMajor());
}
CHECK(ubo_root[2].name == "ubo_c");
{
const ShaderConstant &member = ubo_root[2];
INFO("UBO member: " << member.name.c_str());
CHECK(member.byteOffset == 80);
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.rows == 3);
CHECK(member.type.columns == 4);
CHECK(member.type.RowMajor());
}
CHECK(ubo_root[3].name == "ubo_d");
{
const ShaderConstant &member = ubo_root[3];
INFO("UBO member: " << member.name.c_str());
CHECK(member.byteOffset == 128);
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::SInt);
CHECK(member.type.rows == 1);
CHECK(member.type.columns == 2);
}
CHECK(ubo_root[4].name == "ubo_e");
{
const ShaderConstant &member = ubo_root[4];
INFO("UBO member: " << member.name.c_str());
CHECK(member.byteOffset == 144);
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.rows == 1);
CHECK(member.type.columns == 2);
CHECK(member.type.elements == 3);
CHECK(member.type.arrayByteStride == 16);
}
CHECK(ubo_root[5].name == "ubo_f");
{
const ShaderConstant &member = ubo_root[5];
INFO("UBO member: " << member.name.c_str());
CHECK(member.byteOffset == 192);
CHECK(member.type.baseType == VarType::Struct);
CHECK(member.type.arrayByteStride == 48);
REQUIRE_ARRAY_SIZE(member.type.members.size(), 3);
{
CHECK(member.type.members[0].name == "a");
{
const ShaderConstant &submember = member.type.members[0];
INFO("UBO submember: " << submember.name.c_str());
CHECK(submember.byteOffset == 0);
CHECK(submember.type.members.empty());
CHECK(submember.type.baseType == VarType::Float);
CHECK(submember.type.rows == 1);
CHECK(submember.type.columns == 1);
CHECK(submember.type.name == "float");
}
CHECK(member.type.members[1].name == "b");
{
const ShaderConstant &submember = member.type.members[1];
INFO("UBO submember: " << submember.name.c_str());
CHECK(submember.byteOffset == 4);
CHECK(submember.type.members.empty());
CHECK(submember.type.baseType == VarType::SInt);
CHECK(submember.type.rows == 1);
CHECK(submember.type.columns == 1);
CHECK(submember.type.name == "int");
}
CHECK(member.type.members[2].name == "c");
{
const ShaderConstant &submember = member.type.members[2];
INFO("UBO submember: " << submember.name.c_str());
CHECK(submember.byteOffset == 16);
CHECK(submember.type.members.empty());
CHECK(submember.type.baseType == VarType::Float);
CHECK(submember.type.rows == 2);
CHECK(submember.type.columns == 2);
CHECK(submember.type.ColMajor());
}
}
}
CHECK(ubo_root[6].name == "ubo_z");
{
const ShaderConstant &member = ubo_root[6];
INFO("UBO member: " << member.name.c_str());
CHECK(member.byteOffset == 256);
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.rows == 1);
CHECK(member.type.columns == 4);
}
}
}
}
};
SECTION("Textures")
{
rdcstr source = R"(
#version 450 core
layout(binding = 3) uniform sampler2D tex2D;
layout(binding = 5) uniform isampler3D tex3D;
layout(binding = 7) uniform samplerBuffer texBuf;
void main() {
gl_FragDepth = textureLod(tex2D, gl_FragCoord.xy, gl_FragCoord.z).z +
float(texelFetch(tex3D, ivec3(gl_FragCoord.xyz), 0).y) +
texelFetch(texBuf, int(gl_FragCoord.x)).x;
}
)";
ShaderReflection refl;
compile(ShaderStage::Fragment, source, "main", refl);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 3);
{
CHECK(refl.readOnlyResources[0].name == "tex2D");
{
const ShaderResource &res = refl.readOnlyResources[0];
INFO("read-only resource: " << res.name.c_str());
// GLSL does not have register bindings as they're dynamic
if(testType != ShaderType::GLSL)
{
CHECK(res.fixedBindSetOrSpace == 0);
CHECK(res.fixedBindNumber == 3);
}
CHECK(res.bindArraySize == 1);
CHECK(res.textureType == TextureType::Texture2D);
CHECK(res.variableType.members.empty());
CHECK(res.variableType.baseType == VarType::Float);
}
CHECK(refl.readOnlyResources[1].name == "tex3D");
{
const ShaderResource &res = refl.readOnlyResources[1];
INFO("read-only resource: " << res.name.c_str());
// GLSL does not have register bindings as they're dynamic
if(testType != ShaderType::GLSL)
{
CHECK(res.fixedBindSetOrSpace == 0);
CHECK(res.fixedBindNumber == 5);
}
CHECK(res.bindArraySize == 1);
CHECK(res.textureType == TextureType::Texture3D);
CHECK(res.variableType.members.empty());
CHECK(res.variableType.baseType == VarType::SInt);
}
CHECK(refl.readOnlyResources[2].name == "texBuf");
{
const ShaderResource &res = refl.readOnlyResources[2];
INFO("read-only resource: " << res.name.c_str());
// GLSL does not have register bindings as they're dynamic
if(testType != ShaderType::GLSL)
{
CHECK(res.fixedBindSetOrSpace == 0);
CHECK(res.fixedBindNumber == 7);
}
CHECK(res.bindArraySize == 1);
CHECK(res.textureType == TextureType::Buffer);
CHECK(res.variableType.members.empty());
CHECK(res.variableType.baseType == VarType::Float);
}
}
};
#define REQUIRE_ARRAY_SIZE(size, min) \
REQUIRE(size >= min); \
CHECK(size == min);
SECTION("Infinite arrays")
{
rdcstr source = R"(
#version 450 core
layout(binding = 0, std430) buffer ssbo0
{
float blah;
vec4 normal_array[3];
vec4 non_array;
} ssbo_root0;
layout(binding = 0, std430) buffer ssbo1
{
float blah;
vec4 normal_array[3];
vec4 bounded_array[5];
} ssbo_root1;
layout(binding = 2, std430) buffer ssbo2
{
float blah;
vec4 normal_array[3];
vec4 infinite_array[];
} ssbo_root2;
struct glstruct
{
float a;
int b;
};
struct struct_with_arrays
{
float a[2];
int b;
};
layout(binding = 3, std430) buffer ssbo3
{
float blah;
struct_with_arrays test;
glstruct s[2];
} ssbo_root3;
layout(binding = 4, std430) buffer ssbo4
{
float blah;
struct_with_arrays test;
glstruct s[];
} ssbo_root4;
layout(binding = 4, std430) buffer ssbo5
{
float ssbo5_blah;
struct_with_arrays ssbo5_test;
glstruct ssbo5_s[2];
};
layout(binding = 5, std430) buffer ssbo6
{
float ssbo6_blah;
struct_with_arrays ssbo6_test;
glstruct ssbo6_s[];
};
layout(binding = 0, std140) uniform ubo_block
{
float blah;
vec4 normal_array[3];
vec4 infinite_array[];
} ubo_root;
void main() {
ssbo_root0.blah = 0.0f;
ssbo_root1.blah = 0.0f;
ssbo_root2.blah = 0.0f;
ssbo_root3.s[0].a = 0.0f;
ssbo_root4.s[0].a = 0.0f;
ssbo5_blah = 0.0f;
ssbo6_blah = 0.0f;
gl_FragDepth = ubo_root.blah + ubo_root.normal_array[0].x + ubo_root.infinite_array[4].x;
}
)";
ShaderReflection refl;
compile(ShaderStage::Fragment, source, "main", refl);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 1);
{
// blocks get different reflected names in SPIR-V
const rdcstr ubo_name = testType == ShaderType::GLSL ? "ubo_block" : "ubo_root";
CHECK(refl.constantBlocks[0].name == ubo_name);
{
const ConstantBlock &cblock = refl.constantBlocks[0];
INFO("UBO: " << cblock.name.c_str());
// GLSL reflects out a root structure
if(testType == ShaderType::GLSL)
{
REQUIRE_ARRAY_SIZE(cblock.variables.size(), 1);
CHECK(cblock.variables[0].name == ubo_name);
}
const rdcarray<ShaderConstant> &ubo_root =
testType == ShaderType::GLSL ? cblock.variables[0].type.members : cblock.variables;
REQUIRE_ARRAY_SIZE(ubo_root.size(), 3);
{
CHECK(ubo_root[0].name == "blah");
{
const ShaderConstant &member = ubo_root[0];
INFO("UBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.elements == 1);
}
CHECK(ubo_root[1].name == "normal_array");
{
const ShaderConstant &member = ubo_root[1];
INFO("UBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.columns == 4);
CHECK(member.type.elements == 3);
}
CHECK(ubo_root[2].name == "infinite_array");
{
const ShaderConstant &member = ubo_root[2];
INFO("UBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.columns == 4);
// UBOs don't really support infinite arrays - it will just be declared big enough for
// the amount used statically
CHECK(member.type.elements == 5);
}
}
}
}
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 7);
{
// blocks get different reflected names in SPIR-V
const rdcstr ssbo_name = testType == ShaderType::GLSL ? "ssbo" : "ssbo_root";
const rdcstr ssbo_suffix = testType == ShaderType::GLSL ? "" : "_var";
CHECK(refl.readWriteResources[0].name == ssbo_name + "0");
{
const ShaderResource &res = refl.readWriteResources[0];
INFO("read-write resource: " << res.name.c_str());
REQUIRE_ARRAY_SIZE(res.variableType.members.size(), 3);
{
CHECK(res.variableType.members[0].name == "blah");
{
const ShaderConstant &member = res.variableType.members[0];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.elements == 1);
}
CHECK(res.variableType.members[1].name == "normal_array");
{
const ShaderConstant &member = res.variableType.members[1];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.columns == 4);
CHECK(member.type.elements == 3);
}
CHECK(res.variableType.members[2].name == "non_array");
{
const ShaderConstant &member = res.variableType.members[2];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.columns == 4);
CHECK(member.type.elements == 1);
}
}
}
CHECK(refl.readWriteResources[1].name == ssbo_name + "1");
{
const ShaderResource &res = refl.readWriteResources[1];
INFO("read-write resource: " << res.name.c_str());
REQUIRE_ARRAY_SIZE(res.variableType.members.size(), 3);
{
CHECK(res.variableType.members[0].name == "blah");
{
const ShaderConstant &member = res.variableType.members[0];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.elements == 1);
}
CHECK(res.variableType.members[1].name == "normal_array");
{
const ShaderConstant &member = res.variableType.members[1];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.columns == 4);
CHECK(member.type.elements == 3);
}
CHECK(res.variableType.members[2].name == "bounded_array");
{
const ShaderConstant &member = res.variableType.members[2];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.columns == 4);
CHECK(member.type.elements == 5);
}
}
}
CHECK(refl.readWriteResources[2].name == ssbo_name + "2");
{
const ShaderResource &res = refl.readWriteResources[2];
INFO("read-write resource: " << res.name.c_str());
REQUIRE_ARRAY_SIZE(res.variableType.members.size(), 3);
{
CHECK(res.variableType.members[0].name == "blah");
{
const ShaderConstant &member = res.variableType.members[0];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.elements == 1);
}
CHECK(res.variableType.members[1].name == "normal_array");
{
const ShaderConstant &member = res.variableType.members[1];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.columns == 4);
CHECK(member.type.elements == 3);
}
CHECK(res.variableType.members[2].name == "infinite_array");
{
const ShaderConstant &member = res.variableType.members[2];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.columns == 4);
CHECK(member.type.elements == ~0U);
}
}
}
CHECK(refl.readWriteResources[3].name == ssbo_name + "3");
{
const ShaderResource &res = refl.readWriteResources[3];
INFO("read-write resource: " << res.name.c_str());
REQUIRE_ARRAY_SIZE(res.variableType.members.size(), 3);
{
CHECK(res.variableType.members[0].name == "blah");
{
const ShaderConstant &member = res.variableType.members[0];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.elements == 1);
}
CHECK(res.variableType.members[1].name == "test");
{
const ShaderConstant &member = res.variableType.members[1];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Struct);
CHECK(member.type.elements == 1);
REQUIRE_ARRAY_SIZE(member.type.members.size(), 2);
{
CHECK(member.type.members[0].name == "a");
{
const ShaderConstant &submember = member.type.members[0];
INFO("SSBO submember: " << submember.name.c_str());
CHECK(submember.type.baseType == VarType::Float);
CHECK(submember.type.columns == 1);
CHECK(submember.type.elements == 2);
}
CHECK(member.type.members[1].name == "b");
{
const ShaderConstant &submember = member.type.members[1];
INFO("SSBO submember: " << submember.name.c_str());
CHECK(submember.type.baseType == VarType::SInt);
CHECK(submember.type.columns == 1);
CHECK(submember.type.elements == 1);
}
}
}
CHECK(res.variableType.members[2].name == "s");
{
const ShaderConstant &member = res.variableType.members[2];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Struct);
if(testType == ShaderType::GLSL)
{
// GL has no way of telling us the fixed size of a trailing array of structs, so we
// report that it's infinite
CHECK(member.type.elements == ~0U);
}
else
{
CHECK(member.type.elements == 2);
}
}
}
}
CHECK(refl.readWriteResources[4].name == ssbo_name + "4");
{
const ShaderResource &res = refl.readWriteResources[4];
INFO("read-write resource: " << res.name.c_str());
REQUIRE_ARRAY_SIZE(res.variableType.members.size(), 3);
{
CHECK(res.variableType.members[0].name == "blah");
{
const ShaderConstant &member = res.variableType.members[0];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.elements == 1);
}
CHECK(res.variableType.members[1].name == "test");
{
const ShaderConstant &member = res.variableType.members[1];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Struct);
CHECK(member.type.elements == 1);
REQUIRE_ARRAY_SIZE(member.type.members.size(), 2);
{
CHECK(member.type.members[0].name == "a");
{
const ShaderConstant &submember = member.type.members[0];
INFO("SSBO submember: " << submember.name.c_str());
CHECK(submember.type.baseType == VarType::Float);
CHECK(submember.type.columns == 1);
CHECK(submember.type.elements == 2);
}
CHECK(member.type.members[1].name == "b");
{
const ShaderConstant &submember = member.type.members[1];
INFO("SSBO submember: " << submember.name.c_str());
CHECK(submember.type.baseType == VarType::SInt);
CHECK(submember.type.columns == 1);
CHECK(submember.type.elements == 1);
}
}
}
CHECK(res.variableType.members[2].name == "s");
{
const ShaderConstant &member = res.variableType.members[2];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Struct);
CHECK(member.type.elements == ~0U);
}
}
}
CHECK(refl.readWriteResources[5].name == "ssbo5" + ssbo_suffix);
{
const ShaderResource &res = refl.readWriteResources[5];
INFO("read-write resource: " << res.name.c_str());
REQUIRE_ARRAY_SIZE(res.variableType.members.size(), 3);
{
CHECK(res.variableType.members[0].name == "ssbo5_blah");
{
const ShaderConstant &member = res.variableType.members[0];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.elements == 1);
}
CHECK(res.variableType.members[1].name == "ssbo5_test");
{
const ShaderConstant &member = res.variableType.members[1];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Struct);
CHECK(member.type.elements == 1);
REQUIRE_ARRAY_SIZE(member.type.members.size(), 2);
{
CHECK(member.type.members[0].name == "a");
{
const ShaderConstant &submember = member.type.members[0];
INFO("SSBO submember: " << submember.name.c_str());
CHECK(submember.type.baseType == VarType::Float);
CHECK(submember.type.columns == 1);
CHECK(submember.type.elements == 2);
}
CHECK(member.type.members[1].name == "b");
{
const ShaderConstant &submember = member.type.members[1];
INFO("SSBO submember: " << submember.name.c_str());
CHECK(submember.type.baseType == VarType::SInt);
CHECK(submember.type.columns == 1);
CHECK(submember.type.elements == 1);
}
}
}
CHECK(res.variableType.members[2].name == "ssbo5_s");
{
const ShaderConstant &member = res.variableType.members[2];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Struct);
if(testType == ShaderType::GLSL)
{
// GL has no way of telling us the fixed size of a trailing array of structs, so we
// report that it's infinite
CHECK(member.type.elements == ~0U);
}
else
{
CHECK(member.type.elements == 2);
}
}
}
}
CHECK(refl.readWriteResources[6].name == "ssbo6" + ssbo_suffix);
{
const ShaderResource &res = refl.readWriteResources[6];
INFO("read-write resource: " << res.name.c_str());
REQUIRE_ARRAY_SIZE(res.variableType.members.size(), 3);
{
CHECK(res.variableType.members[0].name == "ssbo6_blah");
{
const ShaderConstant &member = res.variableType.members[0];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.elements == 1);
}
CHECK(res.variableType.members[1].name == "ssbo6_test");
{
const ShaderConstant &member = res.variableType.members[1];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Struct);
CHECK(member.type.elements == 1);
REQUIRE_ARRAY_SIZE(member.type.members.size(), 2);
{
CHECK(member.type.members[0].name == "a");
{
const ShaderConstant &submember = member.type.members[0];
INFO("SSBO submember: " << submember.name.c_str());
CHECK(submember.type.baseType == VarType::Float);
CHECK(submember.type.columns == 1);
CHECK(submember.type.elements == 2);
}
CHECK(member.type.members[1].name == "b");
{
const ShaderConstant &submember = member.type.members[1];
INFO("SSBO submember: " << submember.name.c_str());
CHECK(submember.type.baseType == VarType::SInt);
CHECK(submember.type.columns == 1);
CHECK(submember.type.elements == 1);
}
}
}
CHECK(res.variableType.members[2].name == "ssbo6_s");
{
const ShaderConstant &member = res.variableType.members[2];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.type.baseType == VarType::Struct);
CHECK(member.type.elements == ~0U);
}
}
}
}
}
SECTION("SSBOs")
{
rdcstr source = R"(
#version 450 core
struct glstruct
{
float a;
int b;
mat2x2 c;
};
layout(binding = 2, std430) buffer ssbo
{
uint ssbo_a[10];
glstruct ssbo_b[3];
float ssbo_c;
} ssbo_root;
struct nested
{
glstruct first;
glstruct second;
};
layout(binding = 5, std430) buffer ssbo2
{
nested n[];
} ssbo_root2;
void main() {
ssbo_root.ssbo_a[5] = 4;
ssbo_root.ssbo_b[1].b = 6;
ssbo_root2.n[5].second.b = 4;
gl_FragDepth = ssbo_root.ssbo_c + ssbo_root2.n[0].first.a;
}
)";
ShaderReflection refl;
compile(ShaderStage::Fragment, source, "main", refl);
REQUIRE_ARRAY_SIZE(refl.samplers.size(), 0);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 2);
{
// blocks get different reflected names in SPIR-V
const rdcstr ssbo_name = testType == ShaderType::GLSL ? "ssbo" : "ssbo_root";
CHECK(refl.readWriteResources[0].name == ssbo_name);
{
const ShaderResource &res = refl.readWriteResources[0];
INFO("read-write resource: " << res.name.c_str());
// GLSL does not have register bindings as they're dynamic
if(testType != ShaderType::GLSL)
{
CHECK(res.fixedBindSetOrSpace == 0);
CHECK(res.fixedBindNumber == 2);
}
CHECK(res.bindArraySize == 1);
CHECK(res.textureType == TextureType::Buffer);
REQUIRE_ARRAY_SIZE(res.variableType.members.size(), 3);
{
CHECK(res.variableType.members[0].name == "ssbo_a");
{
const ShaderConstant &member = res.variableType.members[0];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.byteOffset == 0);
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::UInt);
CHECK(member.type.rows == 1);
CHECK(member.type.columns == 1);
CHECK(member.type.elements == 10);
CHECK(member.type.arrayByteStride == 4);
CHECK(member.type.name == "uint");
}
CHECK(res.variableType.members[1].name == "ssbo_b");
{
const ShaderConstant &member = res.variableType.members[1];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.byteOffset == 40);
CHECK(member.type.baseType == VarType::Struct);
CHECK(member.type.arrayByteStride == 24);
CHECK(member.type.elements == 3);
REQUIRE_ARRAY_SIZE(member.type.members.size(), 3);
{
CHECK(member.type.members[0].name == "a");
{
const ShaderConstant &submember = member.type.members[0];
INFO("SSBO submember: " << submember.name.c_str());
CHECK(submember.byteOffset == 0);
CHECK(submember.type.members.empty());
CHECK(submember.type.baseType == VarType::Float);
CHECK(submember.type.rows == 1);
CHECK(submember.type.columns == 1);
CHECK(submember.type.name == "float");
}
CHECK(member.type.members[1].name == "b");
{
const ShaderConstant &submember = member.type.members[1];
INFO("SSBO submember: " << submember.name.c_str());
CHECK(submember.byteOffset == 4);
CHECK(submember.type.members.empty());
CHECK(submember.type.baseType == VarType::SInt);
CHECK(submember.type.rows == 1);
CHECK(submember.type.columns == 1);
CHECK(submember.type.name == "int");
}
CHECK(member.type.members[2].name == "c");
{
const ShaderConstant &submember = member.type.members[2];
INFO("SSBO submember: " << submember.name.c_str());
CHECK(submember.byteOffset == 8);
CHECK(submember.type.members.empty());
CHECK(submember.type.baseType == VarType::Float);
CHECK(submember.type.rows == 2);
CHECK(submember.type.columns == 2);
CHECK(submember.type.ColMajor());
}
}
}
CHECK(res.variableType.members[2].name == "ssbo_c");
{
const ShaderConstant &member = res.variableType.members[2];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.byteOffset == 112);
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.rows == 1);
CHECK(member.type.columns == 1);
CHECK(member.type.name == "float");
}
}
}
CHECK(refl.readWriteResources[1].name == (ssbo_name + "2"));
{
const ShaderResource &res = refl.readWriteResources[1];
INFO("read-write resource: " << res.name.c_str());
// GLSL does not have register bindings as they're dynamic
if(testType != ShaderType::GLSL)
{
CHECK(res.fixedBindSetOrSpace == 0);
CHECK(res.fixedBindNumber == 5);
}
CHECK(res.bindArraySize == 1);
CHECK(res.textureType == TextureType::Buffer);
REQUIRE_ARRAY_SIZE(res.variableType.members.size(), 1);
{
CHECK(res.variableType.members[0].name == "n");
{
const ShaderConstant &member = res.variableType.members[0];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.byteOffset == 0);
CHECK(member.type.baseType == VarType::Struct);
CHECK(member.type.arrayByteStride == 48);
CHECK(member.type.elements == ~0U);
REQUIRE_ARRAY_SIZE(member.type.members.size(), 2);
{
CHECK(member.type.members[0].name == "first");
{
const ShaderConstant &submember = member.type.members[0];
INFO("SSBO submember: " << submember.name.c_str());
CHECK(submember.byteOffset == 0);
CHECK(submember.type.baseType == VarType::Struct);
CHECK(submember.type.arrayByteStride == 24);
REQUIRE_ARRAY_SIZE(submember.type.members.size(), 3);
{
CHECK(submember.type.members[0].name == "a");
{
const ShaderConstant &subsubmember = submember.type.members[0];
INFO("SSBO subsubmember: " << subsubmember.name.c_str());
CHECK(subsubmember.byteOffset == 0);
CHECK(subsubmember.type.members.empty());
CHECK(subsubmember.type.baseType == VarType::Float);
CHECK(subsubmember.type.rows == 1);
CHECK(subsubmember.type.columns == 1);
CHECK(subsubmember.type.name == "float");
}
CHECK(submember.type.members[1].name == "b");
{
const ShaderConstant &subsubmember = submember.type.members[1];
INFO("SSBO subsubmember: " << subsubmember.name.c_str());
CHECK(subsubmember.byteOffset == 4);
CHECK(subsubmember.type.members.empty());
CHECK(subsubmember.type.baseType == VarType::SInt);
CHECK(subsubmember.type.rows == 1);
CHECK(subsubmember.type.columns == 1);
CHECK(subsubmember.type.name == "int");
}
CHECK(submember.type.members[2].name == "c");
{
const ShaderConstant &subsubmember = submember.type.members[2];
INFO("SSBO subsubmember: " << subsubmember.name.c_str());
CHECK(subsubmember.byteOffset == 8);
CHECK(subsubmember.type.members.empty());
CHECK(subsubmember.type.baseType == VarType::Float);
CHECK(subsubmember.type.rows == 2);
CHECK(subsubmember.type.columns == 2);
CHECK(subsubmember.type.ColMajor());
}
}
}
CHECK(member.type.members[1].name == "second");
{
const ShaderConstant &submember = member.type.members[1];
INFO("SSBO submember: " << submember.name.c_str());
CHECK(submember.byteOffset == 24);
CHECK(submember.type.baseType == VarType::Struct);
CHECK(submember.type.arrayByteStride == 24);
REQUIRE_ARRAY_SIZE(submember.type.members.size(), 3);
{
CHECK(submember.type.members[0].name == "a");
{
const ShaderConstant &subsubmember = submember.type.members[0];
INFO("SSBO subsubmember: " << subsubmember.name.c_str());
CHECK(subsubmember.byteOffset == 0);
CHECK(subsubmember.type.members.empty());
CHECK(subsubmember.type.baseType == VarType::Float);
CHECK(subsubmember.type.rows == 1);
CHECK(subsubmember.type.columns == 1);
CHECK(subsubmember.type.name == "float");
}
CHECK(submember.type.members[1].name == "b");
{
const ShaderConstant &subsubmember = submember.type.members[1];
INFO("SSBO subsubmember: " << subsubmember.name.c_str());
CHECK(subsubmember.byteOffset == 4);
CHECK(subsubmember.type.members.empty());
CHECK(subsubmember.type.baseType == VarType::SInt);
CHECK(subsubmember.type.rows == 1);
CHECK(subsubmember.type.columns == 1);
CHECK(subsubmember.type.name == "int");
}
CHECK(submember.type.members[2].name == "c");
{
const ShaderConstant &subsubmember = submember.type.members[2];
INFO("SSBO subsubmember: " << subsubmember.name.c_str());
CHECK(subsubmember.byteOffset == 8);
CHECK(subsubmember.type.members.empty());
CHECK(subsubmember.type.baseType == VarType::Float);
CHECK(subsubmember.type.rows == 2);
CHECK(subsubmember.type.columns == 2);
CHECK(subsubmember.type.ColMajor());
}
}
}
}
}
}
}
}
};
SECTION("vertex shader fixed function outputs")
{
rdcstr source = R"(
#version 450 core
void main() {
gl_Position = vec4(0, 1, 0, 1);
}
)";
ShaderReflection refl;
compile(ShaderStage::Vertex, source, "main", refl);
REQUIRE_ARRAY_SIZE(refl.samplers.size(), 0);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.outputSignature.size(), 1);
{
CHECK(refl.outputSignature[0].varName.contains("gl_Position"));
{
const SigParameter &sig = refl.outputSignature[0];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::Position);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 4);
CHECK(sig.regChannelMask == 0xf);
CHECK(sig.channelUsedMask == 0xf);
}
}
rdcstr source2 = R"(
#version 450 core
void main() {
gl_Position = vec4(0, 1, 0, 1);
gl_PointSize = 1.5f;
}
)";
refl = ShaderReflection();
compile(ShaderStage::Vertex, source2, "main", refl);
REQUIRE_ARRAY_SIZE(refl.samplers.size(), 0);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.outputSignature.size(), 2);
{
CHECK(refl.outputSignature[0].varName.contains("gl_Position"));
{
const SigParameter &sig = refl.outputSignature[0];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::Position);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 4);
CHECK(sig.regChannelMask == 0xf);
CHECK(sig.channelUsedMask == 0xf);
}
CHECK(refl.outputSignature[1].varName.contains("gl_PointSize"));
{
const SigParameter &sig = refl.outputSignature[1];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::PointSize);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 1);
CHECK(sig.regChannelMask == 0x1);
CHECK(sig.channelUsedMask == 0x1);
}
}
};
SECTION("matrix and 1D array outputs")
{
rdcstr source = R"(
#version 450 core
layout(location = 0) out vec3 outarr[3];
layout(location = 6) out mat2 outmat;
layout(location = 9) out mat2 outmatarr[2];
void main()
{
gl_Position = vec4(0, 0, 0, 1);
outarr[0] = gl_Position.xyz;
outarr[1] = gl_Position.xyz;
outarr[2] = gl_Position.xyz;
outmat = mat2(0, 0, 0, 0);
outmatarr[0] = mat2(0, 0, 0, 0);
outmatarr[1] = mat2(0, 0, 0, 0);
}
)";
ShaderReflection refl;
compile(ShaderStage::Vertex, source, "main", refl);
REQUIRE_ARRAY_SIZE(refl.samplers.size(), 0);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.outputSignature.size(), 10);
{
CHECK(refl.outputSignature[0].varName.contains("gl_Position"));
{
const SigParameter &sig = refl.outputSignature[0];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::Position);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 4);
CHECK(sig.regChannelMask == 0xf);
CHECK(sig.channelUsedMask == 0xf);
}
CHECK(refl.outputSignature[1].varName == "outarr[0]");
{
const SigParameter &sig = refl.outputSignature[1];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 3);
CHECK(sig.regChannelMask == 0x7);
CHECK(sig.channelUsedMask == 0x7);
}
CHECK(refl.outputSignature[2].varName == "outarr[1]");
{
const SigParameter &sig = refl.outputSignature[2];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 1);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 3);
CHECK(sig.regChannelMask == 0x7);
CHECK(sig.channelUsedMask == 0x7);
}
CHECK(refl.outputSignature[3].varName == "outarr[2]");
{
const SigParameter &sig = refl.outputSignature[3];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 2);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 3);
CHECK(sig.regChannelMask == 0x7);
CHECK(sig.channelUsedMask == 0x7);
}
CHECK(refl.outputSignature[4].varName == "outmat:col0");
{
const SigParameter &sig = refl.outputSignature[4];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 6);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 2);
CHECK(sig.regChannelMask == 0x3);
CHECK(sig.channelUsedMask == 0x3);
}
CHECK(refl.outputSignature[5].varName == "outmat:col1");
{
const SigParameter &sig = refl.outputSignature[5];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 7);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 2);
CHECK(sig.regChannelMask == 0x3);
CHECK(sig.channelUsedMask == 0x3);
}
CHECK(refl.outputSignature[6].varName == "outmatarr[0]:col0");
{
const SigParameter &sig = refl.outputSignature[6];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 9);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 2);
CHECK(sig.regChannelMask == 0x3);
CHECK(sig.channelUsedMask == 0x3);
}
CHECK(refl.outputSignature[7].varName == "outmatarr[0]:col1");
{
const SigParameter &sig = refl.outputSignature[7];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 10);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 2);
CHECK(sig.regChannelMask == 0x3);
CHECK(sig.channelUsedMask == 0x3);
}
CHECK(refl.outputSignature[8].varName == "outmatarr[1]:col0");
{
const SigParameter &sig = refl.outputSignature[8];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 11);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 2);
CHECK(sig.regChannelMask == 0x3);
CHECK(sig.channelUsedMask == 0x3);
}
CHECK(refl.outputSignature[9].varName == "outmatarr[1]:col1");
{
const SigParameter &sig = refl.outputSignature[9];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 12);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 2);
CHECK(sig.regChannelMask == 0x3);
CHECK(sig.channelUsedMask == 0x3);
}
}
};
// this is an annoying one. We want to specify a location explicitly to be GL/SPIR-V compatible,
// but on GL if we specify a location the location assignment handling breaks. Since we only
// need to handle this for tests (real drivers will let us query the locations when needed) AND
// it's an extremely obtuse scenario, we just let GL have no location
const rdcstr locDefine = (testType == ShaderType::GLSPIRV || testType == ShaderType::Vulkan)
? "#define LOC(l) layout(location = l)"
: "#define LOC(l)";
SECTION("nested struct/array inputs/outputs")
{
rdcstr source = R"(
#version 450 core
)" + locDefine + R"(
struct leaf
{
float x;
};
struct nest
{
float a[2];
leaf b[2];
};
struct base
{
float a;
vec3 b;
nest c[2];
};
layout(binding = 0, std140) uniform ubo_block {
base inB;
} ubo_root;
LOC(0) out base outB;
void main()
{
gl_Position = vec4(0, 0, 0, 1);
outB = ubo_root.inB;
}
)";
ShaderReflection refl;
compile(ShaderStage::Vertex, source, "main", refl);
REQUIRE_ARRAY_SIZE(refl.outputSignature.size(), 11);
{
CHECK(refl.outputSignature[0].varName.contains("gl_Position"));
{
const SigParameter &sig = refl.outputSignature[0];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::Position);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 4);
CHECK(sig.regChannelMask == 0xf);
CHECK(sig.channelUsedMask == 0xf);
}
CHECK(refl.outputSignature[1].varName == "outB.a");
{
const SigParameter &sig = refl.outputSignature[1];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 1);
CHECK(sig.regChannelMask == 0x1);
CHECK(sig.channelUsedMask == 0x1);
}
CHECK(refl.outputSignature[2].varName == "outB.b");
{
const SigParameter &sig = refl.outputSignature[2];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 1);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 3);
CHECK(sig.regChannelMask == 0x7);
CHECK(sig.channelUsedMask == 0x7);
}
CHECK(refl.outputSignature[3].varName == "outB.c[0].a[0]");
{
const SigParameter &sig = refl.outputSignature[3];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 2);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 1);
CHECK(sig.regChannelMask == 0x1);
CHECK(sig.channelUsedMask == 0x1);
}
CHECK(refl.outputSignature[4].varName == "outB.c[0].a[1]");
{
const SigParameter &sig = refl.outputSignature[4];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 3);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 1);
CHECK(sig.regChannelMask == 0x1);
CHECK(sig.channelUsedMask == 0x1);
}
CHECK(refl.outputSignature[5].varName == "outB.c[0].b[0].x");
{
const SigParameter &sig = refl.outputSignature[5];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 4);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 1);
CHECK(sig.regChannelMask == 0x1);
CHECK(sig.channelUsedMask == 0x1);
}
CHECK(refl.outputSignature[6].varName == "outB.c[0].b[1].x");
{
const SigParameter &sig = refl.outputSignature[6];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 5);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 1);
CHECK(sig.regChannelMask == 0x1);
CHECK(sig.channelUsedMask == 0x1);
}
CHECK(refl.outputSignature[7].varName == "outB.c[1].a[0]");
{
const SigParameter &sig = refl.outputSignature[7];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 6);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 1);
CHECK(sig.regChannelMask == 0x1);
CHECK(sig.channelUsedMask == 0x1);
}
CHECK(refl.outputSignature[8].varName == "outB.c[1].a[1]");
{
const SigParameter &sig = refl.outputSignature[8];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 7);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 1);
CHECK(sig.regChannelMask == 0x1);
CHECK(sig.channelUsedMask == 0x1);
}
CHECK(refl.outputSignature[9].varName == "outB.c[1].b[0].x");
{
const SigParameter &sig = refl.outputSignature[9];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 8);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 1);
CHECK(sig.regChannelMask == 0x1);
CHECK(sig.channelUsedMask == 0x1);
}
CHECK(refl.outputSignature[10].varName == "outB.c[1].b[1].x");
{
const SigParameter &sig = refl.outputSignature[10];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 9);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 1);
CHECK(sig.regChannelMask == 0x1);
CHECK(sig.channelUsedMask == 0x1);
}
}
}
SECTION("multi-dimensional array inputs/outputs")
{
rdcstr source = R"(
#version 450 core
)" + locDefine + R"(
LOC(0) in vec3 inarr[1][3][2];
LOC(0) out vec3 outarr[1][3][2];
void main()
{
gl_Position = vec4(0, 0, 0, 1);
for(int i=0; i < 1*3*2; i++)
outarr[(i/6)][(i/2)%3][i%2] = inarr[(i/6)][(i/2)%3][i%2];
}
)";
ShaderReflection refl;
compile(ShaderStage::Vertex, source, "main", refl);
REQUIRE_ARRAY_SIZE(refl.samplers.size(), 0);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 0);
REQUIRE(refl.inputSignature.size() >= 6);
// glslang will insert gl_VertexID and gl_InstanceID here in SPIR-V compilation
CHECK((refl.inputSignature.size() == 6 || refl.inputSignature.size() == 8));
REQUIRE_ARRAY_SIZE(refl.outputSignature.size(), 7);
for(size_t i = 0; i < 2; i++)
{
const rdcarray<SigParameter> &sigarray = (i == 0) ? refl.inputSignature : refl.outputSignature;
size_t idx = 0;
if(i == 0)
{
if(sigarray[0].varName.contains("gl_VertexID"))
{
// skip without checking
idx++;
}
if(sigarray[1].varName.contains("gl_InstanceID"))
{
// skip without checking
idx++;
}
}
else if(i == 1)
{
CHECK(sigarray[0].varName.contains("gl_Position"));
{
const SigParameter &sig = sigarray[0];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::Position);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 4);
CHECK(sig.regChannelMask == 0xf);
CHECK(sig.channelUsedMask == 0xf);
}
idx++;
}
for(uint32_t a = 0; a < 6; a++)
{
rdcstr expectedName = StringFormat::Fmt("%sarr[%d][%d][%d]", i == 0 ? "in" : "out", a / 6,
(a / 2) % 3, (a % 2));
CHECK(sigarray[idx].varName == expectedName);
{
const SigParameter &sig = sigarray[idx];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == a);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 3);
CHECK(sig.regChannelMask == 0x7);
CHECK(sig.channelUsedMask == 0x7);
}
idx++;
}
}
};
SECTION("shader input/output blocks")
{
rdcstr source = R"(
#version 450 core
layout(triangles) in;
layout(triangle_strip, max_vertices = 4) out;
in gl_PerVertex
{
vec4 gl_Position;
} gl_in[];
layout(location = 0) in block
{
vec2 Texcoord;
} In[];
out gl_PerVertex
{
vec4 gl_Position;
};
layout(location = 0) out block
{
vec2 Texcoord;
} Out;
void main()
{
for(int i = 0; i < gl_in.length(); ++i)
{
gl_Position = gl_in[i].gl_Position;
Out.Texcoord = In[i].Texcoord;
EmitVertex();
}
EndPrimitive();
}
)";
ShaderReflection refl;
compile(ShaderStage::Geometry, source, "main", refl);
REQUIRE_ARRAY_SIZE(refl.samplers.size(), 0);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), 0);
REQUIRE_ARRAY_SIZE(refl.inputSignature.size(), 2);
{
// blocks get different reflected names in SPIR-V
const rdcstr gl_in_name = testType == ShaderType::GLSL ? "gl_PerVertex" : "gl_in";
const rdcstr block_name = testType == ShaderType::GLSL ? "block" : "In";
CHECK(refl.inputSignature[0].varName == (gl_in_name + ".gl_Position"));
{
const SigParameter &sig = refl.inputSignature[0];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::Position);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 4);
CHECK(sig.regChannelMask == 0xf);
CHECK(sig.channelUsedMask == 0xf);
}
CHECK(refl.inputSignature[1].varName == (block_name + ".Texcoord"));
{
const SigParameter &sig = refl.inputSignature[1];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 2);
CHECK(sig.regChannelMask == 0x3);
CHECK(sig.channelUsedMask == 0x3);
}
}
REQUIRE_ARRAY_SIZE(refl.outputSignature.size(), 2);
{
const rdcstr block_name = testType == ShaderType::GLSL ? "block" : "Out";
CHECK(refl.outputSignature[0].varName.contains("gl_Position"));
{
const SigParameter &sig = refl.outputSignature[0];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::Position);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 4);
CHECK(sig.regChannelMask == 0xf);
CHECK(sig.channelUsedMask == 0xf);
}
CHECK(refl.outputSignature[1].varName == (block_name + ".Texcoord"));
{
const SigParameter &sig = refl.outputSignature[1];
INFO("signature element: " << sig.varName.c_str());
CHECK(sig.regIndex == 0);
CHECK(sig.systemValue == ShaderBuiltin::Undefined);
CHECK(sig.varType == VarType::Float);
CHECK(sig.compCount == 2);
CHECK(sig.regChannelMask == 0x3);
CHECK(sig.channelUsedMask == 0x3);
}
}
};
SECTION("Arrays of opaque resources")
{
rdcstr source = R"(
#version 450 core
layout(binding = 2, std430) buffer ssbo
{
float a;
int b;
} ssbo_root[];
layout(binding = 3) uniform sampler2D tex2D[];
void main() {
ssbo_root[4].b = 4;
gl_FragDepth = ssbo_root[4].a + textureLod(tex2D[6], gl_FragCoord.xy, gl_FragCoord.z).z;
}
)";
#define REQUIRE_ARRAY_SIZE(size, min) \
REQUIRE(size >= min); \
CHECK(size == min);
ShaderReflection refl;
compile(ShaderStage::Fragment, source, "main", refl);
// GLSL 'expands' these arrays
size_t countRO = (testType == ShaderType::GLSL ? 7 : 1);
size_t arraySizeRO = (testType == ShaderType::GLSL ? 1 : 7);
REQUIRE_ARRAY_SIZE(refl.constantBlocks.size(), 0);
REQUIRE_ARRAY_SIZE(refl.readOnlyResources.size(), countRO);
{
for(size_t i = 0; i < countRO; i++)
{
const rdcstr ro_name =
(testType == ShaderType::GLSL ? StringFormat::Fmt("tex2D[%zu]", i) : "tex2D");
CHECK(refl.readOnlyResources[i].name == ro_name);
{
const ShaderResource &res = refl.readOnlyResources[i];
INFO("read-only resource: " << res.name.c_str());
// GLSL does not have register bindings as they're dynamic
if(testType != ShaderType::GLSL)
{
CHECK(res.fixedBindSetOrSpace == 0);
CHECK(res.fixedBindNumber == 3 + i);
}
CHECK(res.bindArraySize == arraySizeRO);
CHECK(res.textureType == TextureType::Texture2D);
CHECK(res.variableType.members.empty());
CHECK(res.variableType.baseType == VarType::Float);
}
}
}
size_t countRW = (testType == ShaderType::GLSL ? 5 : 1);
size_t arraySizeRW = (testType == ShaderType::GLSL ? 1 : 5);
REQUIRE_ARRAY_SIZE(refl.readWriteResources.size(), countRW);
{
for(size_t i = 0; i < countRW; i++)
{
// blocks get different reflected names in SPIR-V
const rdcstr ssbo_name =
(testType == ShaderType::GLSL ? StringFormat::Fmt("ssbo[%zu]", i) : "ssbo_root");
CHECK(refl.readWriteResources[i].name == ssbo_name);
{
const ShaderResource &res = refl.readWriteResources[i];
INFO("read-write resource: " << res.name.c_str());
// GLSL does not have register bindings as they're dynamic
if(testType != ShaderType::GLSL)
{
CHECK(res.fixedBindSetOrSpace == 0);
CHECK(res.fixedBindNumber == 2 + i);
}
CHECK(res.bindArraySize == arraySizeRW);
CHECK(res.textureType == TextureType::Buffer);
// due to a bug in glslang the reflection is broken for these SSBOs. So we can still run
// this test on GLSL we do a little hack here, which can get removed when we update
// glslang with the fix
const ShaderConstantType *varType = &res.variableType;
REQUIRE_ARRAY_SIZE(varType->members.size(), 2);
{
CHECK(varType->members[0].name == "a");
{
const ShaderConstant &member = varType->members[0];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.byteOffset == 0);
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::Float);
CHECK(member.type.rows == 1);
CHECK(member.type.columns == 1);
CHECK(member.type.name == "float");
}
CHECK(varType->members[1].name == "b");
{
const ShaderConstant &member = varType->members[1];
INFO("SSBO member: " << member.name.c_str());
CHECK(member.byteOffset == 4);
CHECK(member.type.members.empty());
CHECK(member.type.baseType == VarType::SInt);
CHECK(member.type.rows == 1);
CHECK(member.type.columns == 1);
CHECK(member.type.name == "int");
}
}
}
}
}
};
}
#endif
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