Revision control
Copy as Markdown
// Copyright (C) 2008-2012 NVIDIA Corporation.
// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
// Qt-Security score:significant reason:default
#include "qssgrendererimplshaders_p.h"
#include <QtQuick3DRuntimeRender/private/qssgrenderer_p.h>
#include <QtQuick3DRuntimeRender/private/qssgrenderlight_p.h>
#include "../qssgrendercontextcore.h"
#include <QtQuick3DRuntimeRender/private/qssgrendershadercache_p.h>
#include <QtQuick3DRuntimeRender/private/qssgrendershaderlibrarymanager_p.h>
#include <QtQuick3DRuntimeRender/private/qssgrendershadercodegenerator_p.h>
#include <QtQuick3DRuntimeRender/private/qssgrenderdefaultmaterialshadergenerator_p.h>
#include <QtQuick3DRuntimeRender/private/qssgvertexpipelineimpl_p.h>
// this file contains the getXxxxShader implementations suitable for the QRhi-based rendering path
QT_BEGIN_NAMESPACE
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getBuiltinRhiShader(const QByteArray &name,
BuiltinShader &storage,
int viewCount,
QSSGRhiShaderPipeline::StageFlags vertexStageFlags)
{
if (storage.shaderPipeline && storage.viewCount != viewCount)
storage = {};
if (!storage.shaderPipeline) {
// loadBuiltin must always return a valid QSSGRhiShaderPipeline.
// There will just be no stages if loading fails.
storage.shaderPipeline = m_shaderCache.loadBuiltinUncached(name, viewCount, vertexStageFlags);
storage.viewCount = viewCount;
}
return storage.shaderPipeline;
}
void QSSGBuiltInRhiShaderCache::releaseCachedResources()
{
m_cache = {};
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiGridShader(int viewCount)
{
return getBuiltinRhiShader(QByteArrayLiteral("grid"), m_cache.gridShader, viewCount);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiSsaoShader(int viewCount)
{
return getBuiltinRhiShader(QByteArrayLiteral("ssao"), m_cache.ssaoRhiShader, viewCount);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiSkyBoxCubeShader(QSSGRenderLayer::TonemapMode tonemapMode, bool isLinear, int viewCount)
{
const bool rawPixels = (!isLinear && tonemapMode == QSSGRenderLayer::TonemapMode::Linear) || (isLinear && tonemapMode == QSSGRenderLayer::TonemapMode::None);
auto shaderName = rawPixels ? QByteArrayLiteral("skyboxcube") : QByteArrayLiteral("skyboxcube_runtime_tonemapping");
return getBuiltinRhiShader(shaderName, m_cache.skyBoxCubeRhiShader, viewCount);
}
static inline constexpr size_t getSkyboxIndex(QSSGRenderLayer::TonemapMode tonemapMode, bool isRGBE)
{
switch (tonemapMode) {
case QSSGRenderLayer::TonemapMode::None:
return 0 + (size_t(isRGBE) * QSSGRenderLayer::TonemapModeCount);
case QSSGRenderLayer::TonemapMode::Linear:
return 1 + (size_t(isRGBE) * QSSGRenderLayer::TonemapModeCount);
case QSSGRenderLayer::TonemapMode::Aces:
return 2 + (size_t(isRGBE) * QSSGRenderLayer::TonemapModeCount);
case QSSGRenderLayer::TonemapMode::HejlDawson:
return 3 + (size_t(isRGBE) * QSSGRenderLayer::TonemapModeCount);
case QSSGRenderLayer::TonemapMode::Filmic:
return 4 + (size_t(isRGBE) * QSSGRenderLayer::TonemapModeCount);
case QSSGRenderLayer::TonemapMode::Custom:
return 5 + (size_t(isRGBE) * QSSGRenderLayer::TonemapModeCount);
}
// GCC 8.x does not treat __builtin_unreachable() as constexpr
# if !defined(Q_CC_GNU_ONLY) || (Q_CC_GNU >= 900)
// NOLINTNEXTLINE(qt-use-unreachable-return): Triggers on Clang, breaking GCC 8
Q_UNREACHABLE();
# endif
return 0;
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiSkyBoxShader(QSSGRenderLayer::TonemapMode tonemapMode, bool isRGBE, int viewCount)
{
// Skybox shader is special and has multiple possible shaders so we have to do
// a bit of manual work here (mapping resolved in getSkyboxIndex()).
static constexpr char variant[][23] { "skybox_hdr_none",
"skybox_hdr_linear",
"skybox_hdr_aces",
"skybox_hdr_hejldawson",
"skybox_hdr_filmic",
"skybox_hdr_custom",
"skybox_rgbe_none",
"skybox_rgbe_linear",
"skybox_rgbe_aces",
"skybox_rgbe_hejldawson",
"skybox_rgbe_filmic",
"skybox_rgbe_custom",
};
const size_t skyboxIndex = getSkyboxIndex(tonemapMode, isRGBE);
return getBuiltinRhiShader(QByteArray::fromRawData(variant[skyboxIndex], std::char_traits<char>::length(variant[skyboxIndex])), m_cache.skyBoxRhiShader[skyboxIndex], viewCount);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiSupersampleResolveShader(int viewCount)
{
return getBuiltinRhiShader(QByteArrayLiteral("ssaaresolve"), m_cache.supersampleResolveRhiShader, viewCount);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiProgressiveAAShader()
{
return getBuiltinRhiShader(QByteArrayLiteral("progressiveaa"), m_cache.progressiveAARhiShader);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiMotionVectorShader(bool skin, bool instance, bool morph)
{
QByteArray shaderName = "motionvector";
if (skin)
shaderName += "_skin";
if (instance)
shaderName += "_instance";
if (morph)
shaderName += "_morph";
int index = (int(skin) << 2) | (int(instance) << 1) | int(morph);
return getBuiltinRhiShader(shaderName, m_cache.motionVectorRhiShader[index], 1, {});
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiTemporalAAShader()
{
return getBuiltinRhiShader(QByteArrayLiteral("temporalaa"), m_cache.temporalAARhiShader);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiSimpleQuadShader(int viewCount, QSSGRenderLayer::TonemapMode tonemapMode)
{
static constexpr char variant[][22] = {
"simplequad",
"simplequad_linear",
"simplequad_aces",
"simplequad_hejldawson",
"simplequad_filmic",
};
if (tonemapMode == QSSGRenderLayer::TonemapMode::Custom)
tonemapMode = QSSGRenderLayer::TonemapMode::None;
const size_t index = qMin(size_t(tonemapMode), std::size(variant) - 1);
return getBuiltinRhiShader(QByteArray(variant[index]), m_cache.simpleQuadRhiShader, viewCount);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiLightmapUVRasterizationShader(LightmapUVRasterizationShaderMode mode)
{
switch (mode) {
case LightmapUVRasterizationShaderMode::Uv:
return getBuiltinRhiShader(QByteArrayLiteral("lightmapuvraster_uv"), m_cache.lightmapUVRasterShader_uv);
case LightmapUVRasterizationShaderMode::UvTangent:
return getBuiltinRhiShader(QByteArrayLiteral("lightmapuvraster_uv_tangent"), m_cache.lightmapUVRasterShader_uv_tangent);
case LightmapUVRasterizationShaderMode::Default:
return getBuiltinRhiShader(QByteArrayLiteral("lightmapuvraster"), m_cache.lightmapUVRasterShader);
}
Q_UNREACHABLE_RETURN(getBuiltinRhiShader(QByteArrayLiteral("lightmapuvraster"), m_cache.lightmapUVRasterShader));
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiLightmapDilateShader()
{
return getBuiltinRhiShader(QByteArrayLiteral("lightmapdilate"), m_cache.lightmapDilateShader);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiDebugObjectShader(int viewCount)
{
return getBuiltinRhiShader(QByteArrayLiteral("debugobject"), m_cache.debugObjectShader, viewCount);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiReflectionprobePreFilterShader()
{
return getBuiltinRhiShader(QByteArrayLiteral("reflectionprobeprefilter"), m_cache.reflectionprobePreFilterShader);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiSkyIblPreFilterShader()
{
return getBuiltinRhiShader(QByteArrayLiteral("skyiblprefilter"), m_cache.skyIblPreFilterShader);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiSkyIblPreFilterNormalizeShader()
{
return getBuiltinRhiShader(QByteArrayLiteral("skyiblprefilternormalize"), m_cache.skyIblPreFilterNormalizeShader);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhienvironmentmapPreFilterShader(bool isRGBE)
{
static constexpr char variant[][29] { "environmentmapprefilter", "environmentmapprefilter_rgbe" };
const quint8 idx = quint8(isRGBE);
return getBuiltinRhiShader(QByteArray::fromRawData(variant[idx], std::char_traits<char>::length(variant[idx])), m_cache.environmentmapPreFilterShader[idx]);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiEnvironmentmapShader()
{
return getBuiltinRhiShader(QByteArrayLiteral("environmentmap"), m_cache.environmentmapShader);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiClearMRTShader()
{
return getBuiltinRhiShader(QByteArrayLiteral("clear_mrt"), m_cache.clearMRTShader);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiOitCompositeShader(QSSGRenderLayer::OITMethod method, bool multisample, bool use_buffers)
{
if (method == QSSGRenderLayer::OITMethod::WeightedBlended){
if (multisample)
return getBuiltinRhiShader(QByteArrayLiteral("oitcomposite_weightedblended_ms"), m_cache.oitCompositeShader[1]);
else
return getBuiltinRhiShader(QByteArrayLiteral("oitcomposite_weightedblended"), m_cache.oitCompositeShader[0]);
} else if (method == QSSGRenderLayer::OITMethod::LinkedList) {
if (use_buffers) {
if (multisample)
return getBuiltinRhiShader(QByteArrayLiteral("oitcomposite_linkedlist_ms_buf"), m_cache.oitCompositeShader[5]);
else
return getBuiltinRhiShader(QByteArrayLiteral("oitcomposite_linkedlist_buf"), m_cache.oitCompositeShader[4]);
} else {
if (multisample)
return getBuiltinRhiShader(QByteArrayLiteral("oitcomposite_linkedlist_ms"), m_cache.oitCompositeShader[3]);
else
return getBuiltinRhiShader(QByteArrayLiteral("oitcomposite_linkedlist"), m_cache.oitCompositeShader[2]);
}
}
Q_UNREACHABLE_RETURN(getBuiltinRhiShader(QByteArrayLiteral("oitcomposite_weightedblended"), m_cache.oitCompositeShader[0]));
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiCubeMapToAtlasShader()
{
return getBuiltinRhiShader(QByteArrayLiteral("cubeMapToHemisphere"), m_cache.cubeMapToAtlasShader);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiClearShadowMapShader()
{
return getBuiltinRhiShader(QByteArrayLiteral("clearshadowmap"), m_cache.clearShadowMapShader);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiClearImageShader()
{
return getBuiltinRhiShader(QByteArrayLiteral("clearimage"), m_cache.clearImageShader);
}
QSSGRhiShaderPipelinePtr QSSGBuiltInRhiShaderCache::getRhiClearBufferShader()
{
return getBuiltinRhiShader(QByteArrayLiteral("clearbuffer"), m_cache.clearBufferShader);
}
QT_END_NAMESPACE