diff options
Diffstat (limited to 'src/quick/scenegraph/qsgdistancefieldglyphnode_p.cpp')
| -rw-r--r-- | src/quick/scenegraph/qsgdistancefieldglyphnode_p.cpp | 394 |
1 files changed, 7 insertions, 387 deletions
diff --git a/src/quick/scenegraph/qsgdistancefieldglyphnode_p.cpp b/src/quick/scenegraph/qsgdistancefieldglyphnode_p.cpp index 30e17bbe04..8a4e0d0e9f 100644 --- a/src/quick/scenegraph/qsgdistancefieldglyphnode_p.cpp +++ b/src/quick/scenegraph/qsgdistancefieldglyphnode_p.cpp @@ -70,144 +70,7 @@ static float spreadFunc(float glyphScale) return range / glyphScale; } -class QSGDistanceFieldTextMaterialShader : public QSGMaterialShader -{ -public: - QSGDistanceFieldTextMaterialShader(); - - void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) override; - char const *const *attributeNames() const override; - -protected: - void initialize() override; - - void updateAlphaRange(); - void updateColor(const QVector4D &c); - void updateTextureScale(const QVector2D &ts); - - float m_fontScale = 1.0; - float m_matrixScale = 1.0; - - int m_matrix_id = -1; - int m_textureScale_id = -1; - int m_alphaMin_id = -1; - int m_alphaMax_id = -1; - int m_color_id = -1; - - QVector2D m_lastTextureScale; - QVector4D m_lastColor; - float m_lastAlphaMin = -1; - float m_lastAlphaMax = -1; -}; - -char const *const *QSGDistanceFieldTextMaterialShader::attributeNames() const { - static char const *const attr[] = { "vCoord", "tCoord", nullptr }; - return attr; -} - -QSGDistanceFieldTextMaterialShader::QSGDistanceFieldTextMaterialShader() -{ - setShaderSourceFile(QOpenGLShader::Vertex, QStringLiteral(":/qt-project.org/scenegraph/shaders/distancefieldtext.vert")); - setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qt-project.org/scenegraph/shaders/distancefieldtext.frag")); -} - -void QSGDistanceFieldTextMaterialShader::updateAlphaRange() -{ - float combinedScale = m_fontScale * m_matrixScale; - float base = thresholdFunc(combinedScale); - float range = spreadFunc(combinedScale); - float alphaMin = qMax(0.0f, base - range); - float alphaMax = qMin(base + range, 1.0f); - if (alphaMin != m_lastAlphaMin) { - program()->setUniformValue(m_alphaMin_id, GLfloat(alphaMin)); - m_lastAlphaMin = alphaMin; - } - if (alphaMax != m_lastAlphaMax) { - program()->setUniformValue(m_alphaMax_id, GLfloat(alphaMax)); - m_lastAlphaMax = alphaMax; - } -} - -void QSGDistanceFieldTextMaterialShader::updateColor(const QVector4D &c) -{ - if (m_lastColor != c) { - program()->setUniformValue(m_color_id, c); - m_lastColor = c; - } -} - -void QSGDistanceFieldTextMaterialShader::updateTextureScale(const QVector2D &ts) -{ - if (m_lastTextureScale != ts) { - program()->setUniformValue(m_textureScale_id, ts); - m_lastTextureScale = ts; - } -} - -void QSGDistanceFieldTextMaterialShader::initialize() -{ - QSGMaterialShader::initialize(); - m_matrix_id = program()->uniformLocation("matrix"); - m_textureScale_id = program()->uniformLocation("textureScale"); - m_color_id = program()->uniformLocation("color"); - m_alphaMin_id = program()->uniformLocation("alphaMin"); - m_alphaMax_id = program()->uniformLocation("alphaMax"); -} - -void QSGDistanceFieldTextMaterialShader::updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) -{ - Q_ASSERT(oldEffect == nullptr || newEffect->type() == oldEffect->type()); - QSGDistanceFieldTextMaterial *material = static_cast<QSGDistanceFieldTextMaterial *>(newEffect); - QSGDistanceFieldTextMaterial *oldMaterial = static_cast<QSGDistanceFieldTextMaterial *>(oldEffect); - - bool updated = material->updateTextureSize(); - - if (oldMaterial == nullptr - || material->color() != oldMaterial->color() - || state.isOpacityDirty()) { - QVector4D color = material->color(); - color *= state.opacity(); - updateColor(color); - } - - bool updateRange = false; - if (oldMaterial == nullptr - || material->fontScale() != oldMaterial->fontScale()) { - m_fontScale = material->fontScale(); - updateRange = true; - } - if (state.isMatrixDirty()) { - program()->setUniformValue(m_matrix_id, state.combinedMatrix()); - m_matrixScale = qSqrt(qAbs(state.determinant())) * state.devicePixelRatio(); - updateRange = true; - } - if (updateRange) { - updateAlphaRange(); - } - - Q_ASSERT(material->glyphCache()); - - if (updated - || oldMaterial == nullptr - || oldMaterial->texture()->textureId != material->texture()->textureId) { - updateTextureScale(QVector2D(1.0 / material->textureSize().width(), - 1.0 / material->textureSize().height())); - - QOpenGLFunctions *funcs = state.context()->functions(); - funcs->glBindTexture(GL_TEXTURE_2D, material->texture()->textureId); - - if (updated) { - // Set the mag/min filters to be linear. We only need to do this when the texture - // has been recreated. - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - } - } -} - -class QSGDistanceFieldTextMaterialRhiShader : public QSGMaterialRhiShader +class QSGDistanceFieldTextMaterialRhiShader : public QSGMaterialShader { public: QSGDistanceFieldTextMaterialRhiShader(bool alphaTexture); @@ -310,7 +173,7 @@ QSGDistanceFieldTextMaterial::QSGDistanceFieldTextMaterial() , m_fontScale(1.0) , m_sgTexture(nullptr) { - setFlag(Blending | RequiresDeterminant | SupportsRhiShader, true); + setFlag(Blending | RequiresDeterminant, true); } QSGDistanceFieldTextMaterial::~QSGDistanceFieldTextMaterial() @@ -334,10 +197,7 @@ void QSGDistanceFieldTextMaterial::setColor(const QColor &color) QSGMaterialShader *QSGDistanceFieldTextMaterial::createShader() const { - if (flags().testFlag(RhiShaderWanted)) - return new QSGDistanceFieldTextMaterialRhiShader(m_glyph_cache->eightBitFormatIsAlphaSwizzled()); - else - return new QSGDistanceFieldTextMaterialShader; + return new QSGDistanceFieldTextMaterialRhiShader(m_glyph_cache->eightBitFormatIsAlphaSwizzled()); } bool QSGDistanceFieldTextMaterial::updateTextureSize() @@ -387,47 +247,6 @@ int QSGDistanceFieldTextMaterial::compare(const QSGMaterial *o) const return diff < 0 ? -1 : (diff > 0 ? 1 : 0); } - -class DistanceFieldStyledTextMaterialShader : public QSGDistanceFieldTextMaterialShader -{ -public: - DistanceFieldStyledTextMaterialShader(); - - void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) override; - -protected: - void initialize() override; - - int m_styleColor_id = -1; -}; - -DistanceFieldStyledTextMaterialShader::DistanceFieldStyledTextMaterialShader() - : QSGDistanceFieldTextMaterialShader() -{ -} - -void DistanceFieldStyledTextMaterialShader::initialize() -{ - QSGDistanceFieldTextMaterialShader::initialize(); - m_styleColor_id = program()->uniformLocation("styleColor"); -} - -void DistanceFieldStyledTextMaterialShader::updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) -{ - QSGDistanceFieldTextMaterialShader::updateState(state, newEffect, oldEffect); - - QSGDistanceFieldStyledTextMaterial *material = static_cast<QSGDistanceFieldStyledTextMaterial *>(newEffect); - QSGDistanceFieldStyledTextMaterial *oldMaterial = static_cast<QSGDistanceFieldStyledTextMaterial *>(oldEffect); - - if (oldMaterial == nullptr - || material->styleColor() != oldMaterial->styleColor() - || (state.isOpacityDirty())) { - QVector4D color = material->styleColor(); - color *= state.opacity(); - program()->setUniformValue(m_styleColor_id, color); - } -} - class DistanceFieldStyledTextMaterialRhiShader : public QSGDistanceFieldTextMaterialRhiShader { public: @@ -487,63 +306,6 @@ int QSGDistanceFieldStyledTextMaterial::compare(const QSGMaterial *o) const return QSGDistanceFieldTextMaterial::compare(o); } - -class DistanceFieldOutlineTextMaterialShader : public DistanceFieldStyledTextMaterialShader -{ -public: - DistanceFieldOutlineTextMaterialShader(); - - void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) override; - -protected: - void initialize() override; - - void updateOutlineAlphaRange(int dfRadius); - - int m_outlineAlphaMax0_id = -1; - int m_outlineAlphaMax1_id = -1; -}; - -DistanceFieldOutlineTextMaterialShader::DistanceFieldOutlineTextMaterialShader() - : DistanceFieldStyledTextMaterialShader() -{ - setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qt-project.org/scenegraph/shaders/distancefieldoutlinetext.frag")); -} - -void DistanceFieldOutlineTextMaterialShader::initialize() -{ - DistanceFieldStyledTextMaterialShader::initialize(); - m_outlineAlphaMax0_id = program()->uniformLocation("outlineAlphaMax0"); - m_outlineAlphaMax1_id = program()->uniformLocation("outlineAlphaMax1"); -} - -void DistanceFieldOutlineTextMaterialShader::updateOutlineAlphaRange(int dfRadius) -{ - float combinedScale = m_fontScale * m_matrixScale; - float base = thresholdFunc(combinedScale); - float range = spreadFunc(combinedScale); - float outlineLimit = qMax(0.2f, base - 0.5f / dfRadius / m_fontScale); - - float alphaMin = qMax(0.0f, base - range); - float styleAlphaMin0 = qMax(0.0f, outlineLimit - range); - float styleAlphaMin1 = qMin(outlineLimit + range, alphaMin); - program()->setUniformValue(m_outlineAlphaMax0_id, GLfloat(styleAlphaMin0)); - program()->setUniformValue(m_outlineAlphaMax1_id, GLfloat(styleAlphaMin1)); -} - -void DistanceFieldOutlineTextMaterialShader::updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) -{ - DistanceFieldStyledTextMaterialShader::updateState(state, newEffect, oldEffect); - - QSGDistanceFieldOutlineTextMaterial *material = static_cast<QSGDistanceFieldOutlineTextMaterial *>(newEffect); - QSGDistanceFieldOutlineTextMaterial *oldMaterial = static_cast<QSGDistanceFieldOutlineTextMaterial *>(oldEffect); - - if (oldMaterial == nullptr - || material->fontScale() != oldMaterial->fontScale() - || state.isMatrixDirty()) - updateOutlineAlphaRange(material->glyphCache()->distanceFieldRadius()); -} - class DistanceFieldOutlineTextMaterialRhiShader : public DistanceFieldStyledTextMaterialRhiShader { public: @@ -609,61 +371,7 @@ QSGMaterialType *QSGDistanceFieldOutlineTextMaterial::type() const QSGMaterialShader *QSGDistanceFieldOutlineTextMaterial::createShader() const { - if (flags().testFlag(RhiShaderWanted)) - return new DistanceFieldOutlineTextMaterialRhiShader(m_glyph_cache->eightBitFormatIsAlphaSwizzled()); - else - return new DistanceFieldOutlineTextMaterialShader; -} - - -class DistanceFieldShiftedStyleTextMaterialShader : public DistanceFieldStyledTextMaterialShader -{ -public: - DistanceFieldShiftedStyleTextMaterialShader(); - - void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) override; - -protected: - void initialize() override; - - void updateShift(qreal fontScale, const QPointF& shift); - - int m_shift_id = -1; -}; - -DistanceFieldShiftedStyleTextMaterialShader::DistanceFieldShiftedStyleTextMaterialShader() - : DistanceFieldStyledTextMaterialShader() -{ - setShaderSourceFile(QOpenGLShader::Vertex, QStringLiteral(":/qt-project.org/scenegraph/shaders/distancefieldshiftedtext.vert")); - setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qt-project.org/scenegraph/shaders/distancefieldshiftedtext.frag")); -} - -void DistanceFieldShiftedStyleTextMaterialShader::initialize() -{ - DistanceFieldStyledTextMaterialShader::initialize(); - m_shift_id = program()->uniformLocation("shift"); -} - -void DistanceFieldShiftedStyleTextMaterialShader::updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) -{ - DistanceFieldStyledTextMaterialShader::updateState(state, newEffect, oldEffect); - - QSGDistanceFieldShiftedStyleTextMaterial *material = static_cast<QSGDistanceFieldShiftedStyleTextMaterial *>(newEffect); - QSGDistanceFieldShiftedStyleTextMaterial *oldMaterial = static_cast<QSGDistanceFieldShiftedStyleTextMaterial *>(oldEffect); - - if (oldMaterial == nullptr - || oldMaterial->fontScale() != material->fontScale() - || oldMaterial->shift() != material->shift() - || oldMaterial->textureSize() != material->textureSize()) { - updateShift(material->fontScale(), material->shift()); - } -} - -void DistanceFieldShiftedStyleTextMaterialShader::updateShift(qreal fontScale, const QPointF &shift) -{ - QPointF texel(1.0 / fontScale * shift.x(), - 1.0 / fontScale * shift.y()); - program()->setUniformValue(m_shift_id, texel); + return new DistanceFieldOutlineTextMaterialRhiShader(m_glyph_cache->eightBitFormatIsAlphaSwizzled()); } class DistanceFieldShiftedStyleTextMaterialRhiShader : public DistanceFieldStyledTextMaterialRhiShader @@ -726,10 +434,7 @@ QSGMaterialType *QSGDistanceFieldShiftedStyleTextMaterial::type() const QSGMaterialShader *QSGDistanceFieldShiftedStyleTextMaterial::createShader() const { - if (flags().testFlag(RhiShaderWanted)) - return new DistanceFieldShiftedStyleTextMaterialRhiShader(m_glyph_cache->eightBitFormatIsAlphaSwizzled()); - else - return new DistanceFieldShiftedStyleTextMaterialShader; + return new DistanceFieldShiftedStyleTextMaterialRhiShader(m_glyph_cache->eightBitFormatIsAlphaSwizzled()); } int QSGDistanceFieldShiftedStyleTextMaterial::compare(const QSGMaterial *o) const @@ -740,71 +445,6 @@ int QSGDistanceFieldShiftedStyleTextMaterial::compare(const QSGMaterial *o) cons return QSGDistanceFieldStyledTextMaterial::compare(o); } - -class QSGHiQSubPixelDistanceFieldTextMaterialShader : public QSGDistanceFieldTextMaterialShader -{ -public: - QSGHiQSubPixelDistanceFieldTextMaterialShader(); - - void initialize() override; - void activate() override; - void deactivate() override; - void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) override; - -private: - int m_fontScale_id = -1; - int m_vecDelta_id = -1; -}; - -QSGHiQSubPixelDistanceFieldTextMaterialShader::QSGHiQSubPixelDistanceFieldTextMaterialShader() - : QSGDistanceFieldTextMaterialShader() -{ - setShaderSourceFile(QOpenGLShader::Vertex, QStringLiteral(":/qt-project.org/scenegraph/shaders/hiqsubpixeldistancefieldtext.vert")); - setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qt-project.org/scenegraph/shaders/hiqsubpixeldistancefieldtext.frag")); -} - -void QSGHiQSubPixelDistanceFieldTextMaterialShader::initialize() -{ - QSGDistanceFieldTextMaterialShader::initialize(); - m_fontScale_id = program()->uniformLocation("fontScale"); - m_vecDelta_id = program()->uniformLocation("vecDelta"); -} - -void QSGHiQSubPixelDistanceFieldTextMaterialShader::activate() -{ - QSGDistanceFieldTextMaterialShader::activate(); - QOpenGLContext::currentContext()->functions()->glBlendFunc(GL_CONSTANT_COLOR, GL_ONE_MINUS_SRC_COLOR); -} - -void QSGHiQSubPixelDistanceFieldTextMaterialShader::deactivate() -{ - QSGDistanceFieldTextMaterialShader::deactivate(); - QOpenGLContext::currentContext()->functions()->glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); -} - -void QSGHiQSubPixelDistanceFieldTextMaterialShader::updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) -{ - Q_ASSERT(oldEffect == nullptr || newEffect->type() == oldEffect->type()); - QSGDistanceFieldTextMaterial *material = static_cast<QSGDistanceFieldTextMaterial *>(newEffect); - QSGDistanceFieldTextMaterial *oldMaterial = static_cast<QSGDistanceFieldTextMaterial *>(oldEffect); - - if (oldMaterial == nullptr || material->color() != oldMaterial->color()) { - QVector4D c = material->color(); - state.context()->functions()->glBlendColor(c.x(), c.y(), c.z(), 1.0f); - } - - if (oldMaterial == nullptr || material->fontScale() != oldMaterial->fontScale()) - program()->setUniformValue(m_fontScale_id, GLfloat(material->fontScale())); - - if (oldMaterial == nullptr || state.isMatrixDirty()) { - int viewportWidth = state.viewportRect().width(); - QMatrix4x4 mat = state.combinedMatrix().inverted(); - program()->setUniformValue(m_vecDelta_id, mat.column(0) * (qreal(2) / viewportWidth)); - } - - QSGDistanceFieldTextMaterialShader::updateState(state, newEffect, oldEffect); -} - class QSGHiQSubPixelDistanceFieldTextMaterialRhiShader : public QSGDistanceFieldTextMaterialRhiShader { public: @@ -882,24 +522,7 @@ QSGMaterialType *QSGHiQSubPixelDistanceFieldTextMaterial::type() const QSGMaterialShader *QSGHiQSubPixelDistanceFieldTextMaterial::createShader() const { - if (flags().testFlag(RhiShaderWanted)) - return new QSGHiQSubPixelDistanceFieldTextMaterialRhiShader(m_glyph_cache->eightBitFormatIsAlphaSwizzled()); - else - return new QSGHiQSubPixelDistanceFieldTextMaterialShader; -} - - -class QSGLoQSubPixelDistanceFieldTextMaterialShader : public QSGHiQSubPixelDistanceFieldTextMaterialShader -{ -public: - QSGLoQSubPixelDistanceFieldTextMaterialShader(); -}; - -QSGLoQSubPixelDistanceFieldTextMaterialShader::QSGLoQSubPixelDistanceFieldTextMaterialShader() - : QSGHiQSubPixelDistanceFieldTextMaterialShader() -{ - setShaderSourceFile(QOpenGLShader::Vertex, QStringLiteral(":/qt-project.org/scenegraph/shaders/loqsubpixeldistancefieldtext.vert")); - setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qt-project.org/scenegraph/shaders/loqsubpixeldistancefieldtext.frag")); + return new QSGHiQSubPixelDistanceFieldTextMaterialRhiShader(m_glyph_cache->eightBitFormatIsAlphaSwizzled()); } class QSGLoQSubPixelDistanceFieldTextMaterialRhiShader : public QSGHiQSubPixelDistanceFieldTextMaterialRhiShader @@ -929,10 +552,7 @@ QSGMaterialType *QSGLoQSubPixelDistanceFieldTextMaterial::type() const QSGMaterialShader *QSGLoQSubPixelDistanceFieldTextMaterial::createShader() const { - if (flags().testFlag(RhiShaderWanted)) - return new QSGLoQSubPixelDistanceFieldTextMaterialRhiShader(m_glyph_cache->eightBitFormatIsAlphaSwizzled()); - else - return new QSGLoQSubPixelDistanceFieldTextMaterialShader; + return new QSGLoQSubPixelDistanceFieldTextMaterialRhiShader(m_glyph_cache->eightBitFormatIsAlphaSwizzled()); } QT_END_NAMESPACE |