diff options
Diffstat (limited to 'src/render/renderers/opengl/graphicshelpers/submissioncontext.cpp')
| -rw-r--r-- | src/render/renderers/opengl/graphicshelpers/submissioncontext.cpp | 382 |
1 files changed, 381 insertions, 1 deletions
diff --git a/src/render/renderers/opengl/graphicshelpers/submissioncontext.cpp b/src/render/renderers/opengl/graphicshelpers/submissioncontext.cpp index df7d61902..2279aeacb 100644 --- a/src/render/renderers/opengl/graphicshelpers/submissioncontext.cpp +++ b/src/render/renderers/opengl/graphicshelpers/submissioncontext.cpp @@ -41,6 +41,7 @@ #include <Qt3DRender/qgraphicsapifilter.h> #include <Qt3DRender/qparameter.h> +#include <Qt3DRender/qcullface.h> #include <Qt3DRender/private/renderlogging_p.h> #include <Qt3DRender/private/shader_p.h> #include <Qt3DRender/private/material_p.h> @@ -139,6 +140,192 @@ void copyGLFramebufferDataToImage(QImage &img, const uchar *srcData, uint stride } } +// Render States Helpers +template<typename GenericState> +void applyStateHelper(const GenericState *state, SubmissionContext *gc) +{ +} + +template<> +void applyStateHelper<AlphaFunc>(const AlphaFunc *state, SubmissionContext *gc) +{ + const auto values = state->values(); + gc->alphaTest(std::get<0>(values), std::get<1>(values)); +} + +template<> +void applyStateHelper<BlendEquationArguments>(const BlendEquationArguments *state, SubmissionContext *gc) +{ + const auto values = state->values(); + // Un-indexed BlendEquationArguments -> Use normal GL1.0 functions + if (std::get<5>(values) < 0) { + if (std::get<4>(values)) { + gc->openGLContext()->functions()->glEnable(GL_BLEND); + gc->openGLContext()->functions()->glBlendFuncSeparate(std::get<0>(values), std::get<1>(values), std::get<2>(values), std::get<3>(values)); + } else { + gc->openGLContext()->functions()->glDisable(GL_BLEND); + } + } + // BlendEquationArguments for a particular Draw Buffer. Different behaviours for + // (1) 3.0-3.3: only enablei/disablei supported. + // (2) 4.0+: all operations supported. + // We just ignore blend func parameter for (1), so no warnings get + // printed. + else { + if (std::get<4>(values)) { + gc->enablei(GL_BLEND, std::get<5>(values)); + if (gc->supportsDrawBuffersBlend()) { + gc->blendFuncSeparatei(std::get<5>(values), std::get<0>(values), std::get<1>(values), std::get<2>(values), std::get<3>(values)); + } + } else { + gc->disablei(GL_BLEND, std::get<5>(values)); + } + } +} + +template<> +void applyStateHelper<BlendEquation>(const BlendEquation *state, SubmissionContext *gc) +{ + gc->blendEquation(std::get<0>(state->values())); +} + +template<> +void applyStateHelper<MSAAEnabled>(const MSAAEnabled *state, SubmissionContext *gc) +{ + gc->setMSAAEnabled(std::get<0>(state->values())); +} + + +template<> +void applyStateHelper<DepthTest>(const DepthTest *state, SubmissionContext *gc) +{ + gc->depthTest(std::get<0>(state->values())); +} + + +template<> +void applyStateHelper<NoDepthMask>(const NoDepthMask *state, SubmissionContext *gc) +{ + gc->depthMask(std::get<0>(state->values())); +} + + +template<> +void applyStateHelper<CullFace>(const CullFace *state, SubmissionContext *gc) +{ + const auto values = state->values(); + if (std::get<0>(values) == QCullFace::NoCulling) { + gc->openGLContext()->functions()->glDisable(GL_CULL_FACE); + } else { + gc->openGLContext()->functions()->glEnable(GL_CULL_FACE); + gc->openGLContext()->functions()->glCullFace(std::get<0>(values)); + } +} + +template<> +void applyStateHelper<FrontFace>(const FrontFace *state, SubmissionContext *gc) +{ + gc->frontFace(std::get<0>(state->values())); +} + +template<> +void applyStateHelper<ScissorTest>(const ScissorTest *state, SubmissionContext *gc) +{ + const auto values = state->values(); + gc->openGLContext()->functions()->glEnable(GL_SCISSOR_TEST); + gc->openGLContext()->functions()->glScissor(std::get<0>(values), std::get<1>(values), std::get<2>(values), std::get<3>(values)); +} + +template<> +void applyStateHelper<StencilTest>(const StencilTest *state, SubmissionContext *gc) +{ + const auto values = state->values(); + gc->openGLContext()->functions()->glEnable(GL_STENCIL_TEST); + gc->openGLContext()->functions()->glStencilFuncSeparate(GL_FRONT, std::get<0>(values), std::get<1>(values), std::get<2>(values)); + gc->openGLContext()->functions()->glStencilFuncSeparate(GL_BACK, std::get<3>(values), std::get<4>(values), std::get<5>(values)); +} + +template<> +void applyStateHelper<AlphaCoverage>(const AlphaCoverage *, SubmissionContext *gc) +{ + gc->setAlphaCoverageEnabled(true); +} + +template<> +void applyStateHelper<PointSize>(const PointSize *state, SubmissionContext *gc) +{ + const auto values = state->values(); + gc->pointSize(std::get<0>(values), std::get<1>(values)); +} + + +template<> +void applyStateHelper<PolygonOffset>(const PolygonOffset *state, SubmissionContext *gc) +{ + const auto values = state->values(); + gc->openGLContext()->functions()->glEnable(GL_POLYGON_OFFSET_FILL); + gc->openGLContext()->functions()->glPolygonOffset(std::get<0>(values), std::get<1>(values)); +} + +template<> +void applyStateHelper<ColorMask>(const ColorMask *state, SubmissionContext *gc) +{ + const auto values = state->values(); + gc->openGLContext()->functions()->glColorMask(std::get<0>(values), std::get<1>(values), std::get<2>(values), std::get<3>(values)); +} + +template<> +void applyStateHelper<ClipPlane>(const ClipPlane *state, SubmissionContext *gc) +{ + const auto values = state->values(); + gc->enableClipPlane(std::get<0>(values)); + gc->setClipPlane(std::get<0>(values), std::get<1>(values), std::get<2>(values)); +} + +template<> +void applyStateHelper<SeamlessCubemap>(const SeamlessCubemap *, SubmissionContext *gc) +{ + gc->setSeamlessCubemap(true); +} + +template<> +void applyStateHelper<StencilOp>(const StencilOp *state, SubmissionContext *gc) +{ + const auto values = state->values(); + gc->openGLContext()->functions()->glStencilOpSeparate(GL_FRONT, std::get<0>(values), std::get<1>(values), std::get<2>(values)); + gc->openGLContext()->functions()->glStencilOpSeparate(GL_BACK, std::get<3>(values), std::get<4>(values), std::get<5>(values)); +} + +template<> +void applyStateHelper<StencilMask>(const StencilMask *state, SubmissionContext *gc) +{ + const auto values = state->values(); + gc->openGLContext()->functions()->glStencilMaskSeparate(GL_FRONT, std::get<0>(values)); + gc->openGLContext()->functions()->glStencilMaskSeparate(GL_BACK, std::get<1>(values)); +} + +template<> +void applyStateHelper<Dithering>(const Dithering *, SubmissionContext *gc) +{ + gc->openGLContext()->functions()->glEnable(GL_DITHER); +} + +#ifndef GL_LINE_SMOOTH +#define GL_LINE_SMOOTH 0x0B20 +#endif + +template<> +void applyStateHelper<LineWidth>(const LineWidth *state, SubmissionContext *gc) +{ + const auto values = state->values(); + if (std::get<1>(values)) + gc->openGLContext()->functions()->glEnable(GL_LINE_SMOOTH); + else + gc->openGLContext()->functions()->glDisable(GL_LINE_SMOOTH); + + gc->openGLContext()->functions()->glLineWidth(std::get<0>(values)); +} + } // anonymous unsigned int nextFreeContextId() @@ -789,7 +976,7 @@ void SubmissionContext::setCurrentStateSet(RenderStateSet *ss) if (ss == m_stateSet) return; if (ss) - ss->apply(this); + applyStateSet(ss); m_stateSet = ss; } @@ -798,6 +985,199 @@ RenderStateSet *SubmissionContext::currentStateSet() const return m_stateSet; } +void SubmissionContext::applyState(const StateVariant &stateVariant) +{ + switch (stateVariant.type) { + + case AlphaCoverageStateMask: { + applyStateHelper<AlphaCoverage>(static_cast<const AlphaCoverage *>(stateVariant.constState()), this); + break; + } + case AlphaTestMask: { + applyStateHelper<AlphaFunc>(static_cast<const AlphaFunc *>(stateVariant.constState()), this); + break; + } + case BlendStateMask: { + applyStateHelper<BlendEquation>(static_cast<const BlendEquation *>(stateVariant.constState()), this); + break; + } + case BlendEquationArgumentsMask: { + applyStateHelper<BlendEquationArguments>(static_cast<const BlendEquationArguments *>(stateVariant.constState()), this); + break; + } + case MSAAEnabledStateMask: { + applyStateHelper<MSAAEnabled>(static_cast<const MSAAEnabled *>(stateVariant.constState()), this); + break; + } + + case CullFaceStateMask: { + applyStateHelper<CullFace>(static_cast<const CullFace *>(stateVariant.constState()), this); + break; + } + + case DepthWriteStateMask: { + applyStateHelper<NoDepthMask>(static_cast<const NoDepthMask *>(stateVariant.constState()), this); + break; + } + + case DepthTestStateMask: { + applyStateHelper<DepthTest>(static_cast<const DepthTest *>(stateVariant.constState()), this); + break; + } + + case FrontFaceStateMask: { + applyStateHelper<FrontFace>(static_cast<const FrontFace *>(stateVariant.constState()), this); + break; + } + + case ScissorStateMask: { + applyStateHelper<ScissorTest>(static_cast<const ScissorTest *>(stateVariant.constState()), this); + break; + } + + case StencilTestStateMask: { + applyStateHelper<StencilTest>(static_cast<const StencilTest *>(stateVariant.constState()), this); + break; + } + + case PointSizeMask: { + applyStateHelper<PointSize>(static_cast<const PointSize *>(stateVariant.constState()), this); + break; + } + + case PolygonOffsetStateMask: { + applyStateHelper<PolygonOffset>(static_cast<const PolygonOffset *>(stateVariant.constState()), this); + break; + } + + case ColorStateMask: { + applyStateHelper<ColorMask>(static_cast<const ColorMask *>(stateVariant.constState()), this); + break; + } + + case ClipPlaneMask: { + applyStateHelper<ClipPlane>(static_cast<const ClipPlane *>(stateVariant.constState()), this); + break; + } + + case SeamlessCubemapMask: { + applyStateHelper<SeamlessCubemap>(static_cast<const SeamlessCubemap *>(stateVariant.constState()), this); + break; + } + + case StencilOpMask: { + applyStateHelper<StencilOp>(static_cast<const StencilOp *>(stateVariant.constState()), this); + break; + } + + case StencilWriteStateMask: { + applyStateHelper<StencilMask>(static_cast<const StencilMask *>(stateVariant.constState()), this); + break; + } + + case DitheringStateMask: { + applyStateHelper<Dithering>(static_cast<const Dithering *>(stateVariant.constState()), this); + break; + } + + case LineWidthMask: { + applyStateHelper<LineWidth>(static_cast<const LineWidth *>(stateVariant.constState()), this); + break; + } + default: + Q_UNREACHABLE(); + } +} + +void SubmissionContext::resetMasked(qint64 maskOfStatesToReset) +{ + // TO DO -> Call gcHelper methods instead of raw GL + // QOpenGLFunctions shouldn't be used here directly + QOpenGLFunctions *funcs = m_gl->functions(); + + if (maskOfStatesToReset & ScissorStateMask) + funcs->glDisable(GL_SCISSOR_TEST); + + if (maskOfStatesToReset & BlendStateMask) + funcs->glDisable(GL_BLEND); + + if (maskOfStatesToReset & StencilWriteStateMask) + funcs->glStencilMask(0); + + if (maskOfStatesToReset & StencilTestStateMask) + funcs->glDisable(GL_STENCIL_TEST); + + if (maskOfStatesToReset & DepthTestStateMask) + funcs->glDisable(GL_DEPTH_TEST); + + if (maskOfStatesToReset & DepthWriteStateMask) + funcs->glDepthMask(GL_TRUE); // reset to default + + if (maskOfStatesToReset & FrontFaceStateMask) + funcs->glFrontFace(GL_CCW); // reset to default + + if (maskOfStatesToReset & CullFaceStateMask) + funcs->glDisable(GL_CULL_FACE); + + if (maskOfStatesToReset & DitheringStateMask) + funcs->glDisable(GL_DITHER); + + if (maskOfStatesToReset & AlphaCoverageStateMask) + setAlphaCoverageEnabled(false); + + if (maskOfStatesToReset & PointSizeMask) + pointSize(false, 1.0f); // reset to default + + if (maskOfStatesToReset & PolygonOffsetStateMask) + funcs->glDisable(GL_POLYGON_OFFSET_FILL); + + if (maskOfStatesToReset & ColorStateMask) + funcs->glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); + + if (maskOfStatesToReset & ClipPlaneMask) { + GLint max = maxClipPlaneCount(); + for (GLint i = 0; i < max; ++i) + disableClipPlane(i); + } + + if (maskOfStatesToReset & SeamlessCubemapMask) + setSeamlessCubemap(false); + + if (maskOfStatesToReset & StencilOpMask) + funcs->glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP); + + if (maskOfStatesToReset & LineWidthMask) + funcs->glLineWidth(1.0f); +} + +void SubmissionContext::applyStateSet(RenderStateSet *ss) +{ + RenderStateSet* previousStates = currentStateSet(); + + const StateMaskSet invOurState = ~ss->stateMask(); + // generate a mask for each set bit in previous, where we do not have + // the corresponding bit set. + + StateMaskSet stateToReset = 0; + if (previousStates) { + stateToReset = previousStates->stateMask() & invOurState; + qCDebug(RenderStates) << "previous states " << QString::number(previousStates->stateMask(), 2); + } + qCDebug(RenderStates) << " current states " << QString::number(ss->stateMask(), 2) << "inverse " << QString::number(invOurState, 2) << " -> states to change: " << QString::number(stateToReset, 2); + + // Reset states that aren't active in the current state set + resetMasked(stateToReset); + + // Apply states that weren't in the previous state or that have + // different values + const QVector<StateVariant> statesToSet = ss->states(); + for (const StateVariant &ds : statesToSet) { + if (previousStates && previousStates->contains(ds)) + continue; + applyState(ds); + } +} + void SubmissionContext::clearColor(const QColor &color) { if (m_currClearColorValue != color) { |