////  DebugDeferredBuffer.cpp//  libraries/render-utils/src////  Created by Clement on 12/3/15.//  Copyright 2015 High Fidelity, Inc.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #include "DebugDeferredBuffer.h" #include <QFile> #include <gpu/Batch.h>#include <gpu/Context.h>#include <render/Scene.h>#include <ViewFrustum.h> #include "GeometryCache.h"#include "TextureCache.h"#include "DeferredLightingEffect.h" #include "debug_deferred_buffer_vert.h"#include "debug_deferred_buffer_frag.h" using namespace render; void DebugDeferredBufferConfig::setMode(int newMode) {    if (newMode == mode) {        return;    } else if (newMode > DebugDeferredBuffer::CustomMode || newMode < 0) {        mode = 0;    } else {        mode = newMode;    }    emit dirty();} enum Slot {    Albedo = 0,    Normal,    Specular,    Depth,    Lighting,    Shadow,    LinearDepth,    HalfLinearDepth,    HalfNormal,    Curvature,    DiffusedCurvature,    Scattering,    AmbientOcclusion,    AmbientOcclusionBlurred};   static const std::string DEFAULT_ALBEDO_SHADER {    "vec4 getFragmentColor() {"    "    DeferredFragment frag = unpackDeferredFragmentNoPosition(uv);"    "    return vec4(pow(frag.albedo, vec3(1.0 / 2.2)), 1.0);"    " }"}; static const std::string DEFAULT_METALLIC_SHADER {    "vec4 getFragmentColor() {"    "    DeferredFragment frag = unpackDeferredFragmentNoPosition(uv);"    "    return vec4(vec3(pow(frag.metallic, 1.0 / 2.2)), 1.0);"    " }"}; static const std::string DEFAULT_ROUGHNESS_SHADER {    "vec4 getFragmentColor() {"    "    DeferredFragment frag = unpackDeferredFragmentNoPosition(uv);"    "    return vec4(vec3(pow(frag.roughness, 1.0 / 2.2)), 1.0);"   // "    return vec4(vec3(pow(colorRamp(frag.roughness), vec3(1.0 / 2.2))), 1.0);"    " }"};static const std::string DEFAULT_NORMAL_SHADER {    "vec4 getFragmentColor() {"    "    DeferredFragment frag = unpackDeferredFragmentNoPosition(uv);"    "    return vec4(vec3(0.5) + (frag.normal * 0.5), 1.0);"    " }"}; static const std::string DEFAULT_OCCLUSION_SHADER{    "vec4 getFragmentColor() {" //   "    DeferredFragment frag = unpackDeferredFragmentNoPosition(uv);" //   "    return vec4(vec3(pow(frag.obscurance, 1.0 / 2.2)), 1.0);"    "    return vec4(vec3(pow(texture(specularMap, uv).a, 1.0 / 2.2)), 1.0);"    " }"}; static const std::string DEFAULT_EMISSIVE_SHADER{    "vec4 getFragmentColor() {"    "    DeferredFragment frag = unpackDeferredFragmentNoPosition(uv);"    "    return (frag.mode == FRAG_MODE_SHADED ? vec4(pow(texture(specularMap, uv).rgb, vec3(1.0 / 2.2)), 1.0) : vec4(vec3(0.0), 1.0));"    " }"}; static const std::string DEFAULT_UNLIT_SHADER{    "vec4 getFragmentColor() {"    "    DeferredFragment frag = unpackDeferredFragmentNoPosition(uv);"    "    return (frag.mode == FRAG_MODE_UNLIT ? vec4(pow(frag.albedo, vec3(1.0 / 2.2)), 1.0) : vec4(vec3(0.0), 1.0));"    " }"}; static const std::string DEFAULT_LIGHTMAP_SHADER{    "vec4 getFragmentColor() {"    "    DeferredFragment frag = unpackDeferredFragmentNoPosition(uv);"    "    return (frag.mode == FRAG_MODE_LIGHTMAPPED ? vec4(pow(texture(specularMap, uv).rgb, vec3(1.0 / 2.2)), 1.0) : vec4(vec3(0.0), 1.0));"    " }"}; static const std::string DEFAULT_SCATTERING_SHADER{    "vec4 getFragmentColor() {"    "    DeferredFragment frag = unpackDeferredFragmentNoPosition(uv);"    "    return (frag.mode == FRAG_MODE_SCATTERING ? vec4(vec3(pow(frag.scattering, 1.0 / 2.2)), 1.0) : vec4(vec3(0.0), 1.0));"    " }"}; static const std::string DEFAULT_DEPTH_SHADER {    "vec4 getFragmentColor() {"    "    return vec4(vec3(texture(depthMap, uv).x), 1.0);"    " }"};static const std::string DEFAULT_LIGHTING_SHADER {    "vec4 getFragmentColor() {"    "    return vec4(pow(texture(lightingMap, uv).xyz, vec3(1.0 / 2.2)), 1.0);"    " }"};static const std::string DEFAULT_SHADOW_SHADER {    "uniform sampler2DShadow shadowMap;"    "vec4 getFragmentColor() {"    "    for (int i = 255; i >= 0; --i) {"    "        float depth = i / 255.0;"    "        if (texture(shadowMap, vec3(uv, depth)) > 0.5) {"    "            return vec4(vec3(depth), 1.0);"    "        }"    "    }"    "    return vec4(vec3(0.0), 1.0);"    " }"}; static const std::string DEFAULT_LINEAR_DEPTH_SHADER {    "vec4 getFragmentColor() {"    "    return vec4(vec3(1.0 - texture(linearDepthMap, uv).x * 0.01), 1.0);"    " }"}; static const std::string DEFAULT_HALF_LINEAR_DEPTH_SHADER{    "vec4 getFragmentColor() {"    "    return vec4(vec3(1.0 - texture(halfLinearDepthMap, uv).x * 0.01), 1.0);"    " }"}; static const std::string DEFAULT_HALF_NORMAL_SHADER{    "vec4 getFragmentColor() {"    "    return vec4(vec3(texture(halfNormalMap, uv).xyz), 1.0);"    " }"}; static const std::string DEFAULT_CURVATURE_SHADER{    "vec4 getFragmentColor() {"    "    return vec4(pow(vec3(texture(curvatureMap, uv).a), vec3(1.0 / 2.2)), 1.0);"   // "    return vec4(pow(vec3(texture(curvatureMap, uv).xyz), vec3(1.0 / 2.2)), 1.0);"    //"    return vec4(vec3(1.0 - textureLod(pyramidMap, uv, 3).x * 0.01), 1.0);"    " }"}; static const std::string DEFAULT_NORMAL_CURVATURE_SHADER{    "vec4 getFragmentColor() {"    //"    return vec4(pow(vec3(texture(curvatureMap, uv).a), vec3(1.0 / 2.2)), 1.0);"     "    return vec4(vec3(texture(curvatureMap, uv).xyz), 1.0);"    //"    return vec4(vec3(1.0 - textureLod(pyramidMap, uv, 3).x * 0.01), 1.0);"    " }"}; static const std::string DEFAULT_DIFFUSED_CURVATURE_SHADER{    "vec4 getFragmentColor() {"    "    return vec4(pow(vec3(texture(diffusedCurvatureMap, uv).a), vec3(1.0 / 2.2)), 1.0);"    // "    return vec4(pow(vec3(texture(curvatureMap, uv).xyz), vec3(1.0 / 2.2)), 1.0);"    //"    return vec4(vec3(1.0 - textureLod(pyramidMap, uv, 3).x * 0.01), 1.0);"    " }"}; static const std::string DEFAULT_DIFFUSED_NORMAL_CURVATURE_SHADER{    "vec4 getFragmentColor() {"    //"    return vec4(pow(vec3(texture(curvatureMap, uv).a), vec3(1.0 / 2.2)), 1.0);"    "    return vec4(vec3(texture(diffusedCurvatureMap, uv).xyz), 1.0);"    //"    return vec4(vec3(1.0 - textureLod(pyramidMap, uv, 3).x * 0.01), 1.0);"    " }"}; static const std::string DEFAULT_CURVATURE_OCCLUSION_SHADER{    "vec4 getFragmentColor() {"    "    vec4 midNormalCurvature;"    "    vec4 lowNormalCurvature;"    "    unpackMidLowNormalCurvature(uv, midNormalCurvature, lowNormalCurvature);"    "    float ambientOcclusion = curvatureAO(lowNormalCurvature.a * 20.0f) * 0.5f;"    "    float ambientOcclusionHF = curvatureAO(midNormalCurvature.a * 8.0f) * 0.5f;"    "    ambientOcclusion = min(ambientOcclusion, ambientOcclusionHF);"    "    return vec4(vec3(ambientOcclusion), 1.0);"    " }"}; static const std::string DEFAULT_DEBUG_SCATTERING_SHADER{    "vec4 getFragmentColor() {"    "    return vec4(pow(vec3(texture(scatteringMap, uv).xyz), vec3(1.0 / 2.2)), 1.0);"  //  "    return vec4(vec3(texture(scatteringMap, uv).xyz), 1.0);"    " }"}; static const std::string DEFAULT_AMBIENT_OCCLUSION_SHADER{    "vec4 getFragmentColor() {"    "    return vec4(vec3(texture(obscuranceMap, uv).x), 1.0);"    // When drawing color "    return vec4(vec3(texture(occlusionMap, uv).xyz), 1.0);"    // when drawing normal"    return vec4(normalize(texture(occlusionMap, uv).xyz * 2.0 - vec3(1.0)), 1.0);"    " }"};static const std::string DEFAULT_AMBIENT_OCCLUSION_BLURRED_SHADER{    "vec4 getFragmentColor() {"    "    return vec4(vec3(texture(occlusionBlurredMap, uv).xyz), 1.0);"    " }"}; static const std::string DEFAULT_CUSTOM_SHADER {    "vec4 getFragmentColor() {"    "    return vec4(1.0, 0.0, 0.0, 1.0);"    " }"}; static std::string getFileContent(std::string fileName, std::string defaultContent = std::string()) {    QFile customFile(QString::fromStdString(fileName));    if (customFile.open(QIODevice::ReadOnly)) {        return customFile.readAll().toStdString();    }    qWarning() << "DebugDeferredBuffer::getFileContent(): Could not open"               << QString::fromStdString(fileName);    return defaultContent;} #include <QStandardPaths> // TODO REMOVE: Temporary until UIDebugDeferredBuffer::DebugDeferredBuffer() {    // TODO REMOVE: Temporary until UI    static const auto DESKTOP_PATH = QStandardPaths::writableLocation(QStandardPaths::DesktopLocation);    static const auto CUSTOM_FILE = DESKTOP_PATH.toStdString() + "/custom.slh";    CustomPipeline pipeline;    pipeline.info = QFileInfo(QString::fromStdString(CUSTOM_FILE));    _customPipelines.emplace(CUSTOM_FILE, pipeline);    _geometryId = DependencyManager::get<GeometryCache>()->allocateID();} DebugDeferredBuffer::~DebugDeferredBuffer() {    auto geometryCache = DependencyManager::get<GeometryCache>();    if (geometryCache) {        geometryCache->releaseID(_geometryId);    }} std::string DebugDeferredBuffer::getShaderSourceCode(Mode mode, std::string customFile) {    switch (mode) {        case AlbedoMode:            return DEFAULT_ALBEDO_SHADER;        case MetallicMode:            return DEFAULT_METALLIC_SHADER;        case RoughnessMode:            return DEFAULT_ROUGHNESS_SHADER;        case NormalMode:            return DEFAULT_NORMAL_SHADER;        case DepthMode:            return DEFAULT_DEPTH_SHADER;        case EmissiveMode:            return DEFAULT_EMISSIVE_SHADER;        case UnlitMode:            return DEFAULT_UNLIT_SHADER;        case OcclusionMode:            return DEFAULT_OCCLUSION_SHADER;        case LightmapMode:            return DEFAULT_LIGHTMAP_SHADER;        case ScatteringMode:            return DEFAULT_SCATTERING_SHADER;        case LightingMode:            return DEFAULT_LIGHTING_SHADER;        case ShadowMode:            return DEFAULT_SHADOW_SHADER;        case LinearDepthMode:            return DEFAULT_LINEAR_DEPTH_SHADER;        case HalfLinearDepthMode:            return DEFAULT_HALF_LINEAR_DEPTH_SHADER;        case HalfNormalMode:            return DEFAULT_HALF_NORMAL_SHADER;        case CurvatureMode:            return DEFAULT_CURVATURE_SHADER;        case NormalCurvatureMode:            return DEFAULT_NORMAL_CURVATURE_SHADER;        case DiffusedCurvatureMode:            return DEFAULT_DIFFUSED_CURVATURE_SHADER;        case DiffusedNormalCurvatureMode:            return DEFAULT_DIFFUSED_NORMAL_CURVATURE_SHADER;        case CurvatureOcclusionMode:            return DEFAULT_CURVATURE_OCCLUSION_SHADER;        case ScatteringDebugMode:            return DEFAULT_DEBUG_SCATTERING_SHADER;        case AmbientOcclusionMode:            return DEFAULT_AMBIENT_OCCLUSION_SHADER;        case AmbientOcclusionBlurredMode:            return DEFAULT_AMBIENT_OCCLUSION_BLURRED_SHADER;        case CustomMode:            return getFileContent(customFile, DEFAULT_CUSTOM_SHADER);        default:            return DEFAULT_ALBEDO_SHADER;    }    Q_UNREACHABLE();    return std::string();} bool DebugDeferredBuffer::pipelineNeedsUpdate(Mode mode, std::string customFile) const {    if (mode != CustomMode) {        return !_pipelines[mode];    }        auto it = _customPipelines.find(customFile);    if (it != _customPipelines.end() && it->second.pipeline) {        auto& info = it->second.info;                auto lastModified = info.lastModified();        info.refresh();        return lastModified != info.lastModified();    }        return true;} const gpu::PipelinePointer& DebugDeferredBuffer::getPipeline(Mode mode, std::string customFile) {    if (pipelineNeedsUpdate(mode, customFile)) {        static const std::string VERTEX_SHADER { debug_deferred_buffer_vert };        static const std::string FRAGMENT_SHADER { debug_deferred_buffer_frag };        static const std::string SOURCE_PLACEHOLDER { "//SOURCE_PLACEHOLDER" };        static const auto SOURCE_PLACEHOLDER_INDEX = FRAGMENT_SHADER.find(SOURCE_PLACEHOLDER);        Q_ASSERT_X(SOURCE_PLACEHOLDER_INDEX != std::string::npos, Q_FUNC_INFO,                   "Could not find source placeholder");                auto bakedFragmentShader = FRAGMENT_SHADER;        bakedFragmentShader.replace(SOURCE_PLACEHOLDER_INDEX, SOURCE_PLACEHOLDER.size(),                                    getShaderSourceCode(mode, customFile));                static const auto vs = gpu::Shader::createVertex(VERTEX_SHADER);        const auto ps = gpu::Shader::createPixel(bakedFragmentShader);        const auto program = gpu::Shader::createProgram(vs, ps);                gpu::Shader::BindingSet slotBindings;        slotBindings.insert(gpu::Shader::Binding("albedoMap", Albedo));        slotBindings.insert(gpu::Shader::Binding("normalMap", Normal));        slotBindings.insert(gpu::Shader::Binding("specularMap", Specular));        slotBindings.insert(gpu::Shader::Binding("depthMap", Depth));        slotBindings.insert(gpu::Shader::Binding("obscuranceMap", AmbientOcclusion));        slotBindings.insert(gpu::Shader::Binding("lightingMap", Lighting));        slotBindings.insert(gpu::Shader::Binding("shadowMap", Shadow));        slotBindings.insert(gpu::Shader::Binding("linearDepthMap", LinearDepth));        slotBindings.insert(gpu::Shader::Binding("halfLinearDepthMap", HalfLinearDepth));        slotBindings.insert(gpu::Shader::Binding("halfNormalMap", HalfNormal));        slotBindings.insert(gpu::Shader::Binding("curvatureMap", Curvature));        slotBindings.insert(gpu::Shader::Binding("diffusedCurvatureMap", DiffusedCurvature));        slotBindings.insert(gpu::Shader::Binding("scatteringMap", Scattering));        slotBindings.insert(gpu::Shader::Binding("occlusionBlurredMap", AmbientOcclusionBlurred));        gpu::Shader::makeProgram(*program, slotBindings);                auto pipeline = gpu::Pipeline::create(program, std::make_shared<gpu::State>());                // Good to go add the brand new pipeline        if (mode != CustomMode) {            _pipelines[mode] = pipeline;        } else {            _customPipelines[customFile].pipeline = pipeline;        }    }        if (mode != CustomMode) {        return _pipelines[mode];    } else {        return _customPipelines[customFile].pipeline;    }} void DebugDeferredBuffer::configure(const Config& config) {    _mode = (Mode)config.mode;    _size = config.size;} void DebugDeferredBuffer::run(const RenderContextPointer& renderContext, const Inputs& inputs) {    if (_mode == Off) {        return;    }     assert(renderContext->args);    assert(renderContext->args->hasViewFrustum());    RenderArgs* args = renderContext->args;     auto& deferredFramebuffer = inputs.get0();    auto& linearDepthTarget = inputs.get1();    auto& surfaceGeometryFramebuffer = inputs.get2();    auto& ambientOcclusionFramebuffer = inputs.get3();     gpu::doInBatch(args->_context, [&](gpu::Batch& batch) {        batch.enableStereo(false);        batch.setViewportTransform(args->_viewport);         const auto geometryBuffer = DependencyManager::get<GeometryCache>();        const auto textureCache = DependencyManager::get<TextureCache>();         glm::mat4 projMat;        Transform viewMat;        args->getViewFrustum().evalProjectionMatrix(projMat);        args->getViewFrustum().evalViewTransform(viewMat);        batch.setProjectionTransform(projMat);        batch.setViewTransform(viewMat, true);        batch.setModelTransform(Transform());         // TODO REMOVE: Temporary until UI        auto first = _customPipelines.begin()->first;         batch.setPipeline(getPipeline(_mode, first));         if (deferredFramebuffer) {            batch.setResourceTexture(Albedo, deferredFramebuffer->getDeferredColorTexture());            batch.setResourceTexture(Normal, deferredFramebuffer->getDeferredNormalTexture());            batch.setResourceTexture(Specular, deferredFramebuffer->getDeferredSpecularTexture());            batch.setResourceTexture(Depth, deferredFramebuffer->getPrimaryDepthTexture());            batch.setResourceTexture(Lighting, deferredFramebuffer->getLightingTexture());        }         auto lightStage = renderContext->_scene->getStage<LightStage>();        assert(lightStage);        assert(lightStage->getNumLights() > 0);        auto lightAndShadow = lightStage->getCurrentKeyLightAndShadow();        const auto& globalShadow = lightAndShadow.second;        if (globalShadow) {            batch.setResourceTexture(Shadow, globalShadow->map);        }         if (linearDepthTarget) {            batch.setResourceTexture(LinearDepth, linearDepthTarget->getLinearDepthTexture());            batch.setResourceTexture(HalfLinearDepth, linearDepthTarget->getHalfLinearDepthTexture());            batch.setResourceTexture(HalfNormal, linearDepthTarget->getHalfNormalTexture());        }        if (surfaceGeometryFramebuffer) {            batch.setResourceTexture(Curvature, surfaceGeometryFramebuffer->getCurvatureTexture());            batch.setResourceTexture(DiffusedCurvature, surfaceGeometryFramebuffer->getLowCurvatureTexture());        }        if (ambientOcclusionFramebuffer) {            batch.setResourceTexture(AmbientOcclusion, ambientOcclusionFramebuffer->getOcclusionTexture());            batch.setResourceTexture(AmbientOcclusionBlurred, ambientOcclusionFramebuffer->getOcclusionBlurredTexture());        }        const glm::vec4 color(1.0f, 1.0f, 1.0f, 1.0f);        const glm::vec2 bottomLeft(_size.x, _size.y);        const glm::vec2 topRight(_size.z, _size.w);        geometryBuffer->renderQuad(batch, bottomLeft, topRight, color, _geometryId);          batch.setResourceTexture(Albedo, nullptr);        batch.setResourceTexture(Normal, nullptr);        batch.setResourceTexture(Specular, nullptr);        batch.setResourceTexture(Depth, nullptr);        batch.setResourceTexture(Lighting, nullptr);        batch.setResourceTexture(Shadow, nullptr);        batch.setResourceTexture(LinearDepth, nullptr);        batch.setResourceTexture(HalfLinearDepth, nullptr);        batch.setResourceTexture(HalfNormal, nullptr);         batch.setResourceTexture(Curvature, nullptr);        batch.setResourceTexture(DiffusedCurvature, nullptr);         batch.setResourceTexture(AmbientOcclusion, nullptr);        batch.setResourceTexture(AmbientOcclusionBlurred, nullptr);     });}