diff options
Diffstat (limited to 'src/quick/scenegraph/qsgdefaultglyphnode_p.cpp')
| -rw-r--r-- | src/quick/scenegraph/qsgdefaultglyphnode_p.cpp | 351 |
1 files changed, 15 insertions, 336 deletions
diff --git a/src/quick/scenegraph/qsgdefaultglyphnode_p.cpp b/src/quick/scenegraph/qsgdefaultglyphnode_p.cpp index 44fef4ddef..e13b16c95b 100644 --- a/src/quick/scenegraph/qsgdefaultglyphnode_p.cpp +++ b/src/quick/scenegraph/qsgdefaultglyphnode_p.cpp @@ -90,9 +90,6 @@ static inline qreal fontSmoothingGamma() return fontSmoothingGamma; } - -// ***** legacy (GL) material shader implementations - static inline qreal qsg_device_pixel_ratio(QOpenGLContext *ctx) { qreal devicePixelRatio = 1; @@ -108,304 +105,7 @@ static inline qreal qsg_device_pixel_ratio(QOpenGLContext *ctx) return devicePixelRatio; } -class QSGTextMaskShader : public QSGMaterialShader -{ -public: - QSGTextMaskShader(QFontEngine::GlyphFormat glyphFormat); - - void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) override; - char const *const *attributeNames() const override; - -protected: - void initialize() override; - - int m_matrix_id; - int m_color_id; - int m_textureScale_id; - float m_devicePixelRatio; - - QFontEngine::GlyphFormat m_glyphFormat; -}; - -char const *const *QSGTextMaskShader::attributeNames() const -{ - static char const *const attr[] = { "vCoord", "tCoord", nullptr }; - return attr; -} - -QSGTextMaskShader::QSGTextMaskShader(QFontEngine::GlyphFormat glyphFormat) - : QSGMaterialShader(*new QSGMaterialShaderPrivate) - , m_matrix_id(-1) - , m_color_id(-1) - , m_textureScale_id(-1) - , m_glyphFormat(glyphFormat) -{ - setShaderSourceFile(QOpenGLShader::Vertex, QStringLiteral(":/qt-project.org/scenegraph/shaders/textmask.vert")); - setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qt-project.org/scenegraph/shaders/textmask.frag")); -} - -void QSGTextMaskShader::initialize() -{ - m_matrix_id = program()->uniformLocation("matrix"); - m_color_id = program()->uniformLocation("color"); - m_textureScale_id = program()->uniformLocation("textureScale"); - m_devicePixelRatio = (float) qsg_device_pixel_ratio(QOpenGLContext::currentContext()); - program()->setUniformValue("dpr", m_devicePixelRatio); -} - -void QSGTextMaskShader::updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) -{ - QSGTextMaskMaterial *material = static_cast<QSGTextMaskMaterial *>(newEffect); - QSGTextMaskMaterial *oldMaterial = static_cast<QSGTextMaskMaterial *>(oldEffect); - Q_ASSERT(oldEffect == nullptr || newEffect->type() == oldEffect->type()); - bool updated = material->ensureUpToDate(); - Q_ASSERT(material->texture()); - - Q_ASSERT(oldMaterial == nullptr || oldMaterial->texture()); - if (updated - || oldMaterial == nullptr - || oldMaterial->texture()->textureId() != material->texture()->textureId()) { - program()->setUniformValue(m_textureScale_id, QVector2D(1.0 / material->openglGlyphCache()->width(), - 1.0 / material->openglGlyphCache()->height())); - QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); - funcs->glBindTexture(GL_TEXTURE_2D, material->texture()->textureId()); - - // Set the mag/min filters to be nearest. We only need to do this when the texture - // has been recreated. - if (updated) { - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - } - } - - float devicePixelRatio = (float) qsg_device_pixel_ratio(QOpenGLContext::currentContext()); - if (m_devicePixelRatio != devicePixelRatio) { - m_devicePixelRatio = devicePixelRatio; - program()->setUniformValue("dpr", m_devicePixelRatio); - } - - if (state.isMatrixDirty()) - program()->setUniformValue(m_matrix_id, state.combinedMatrix()); -} - -class QSG8BitTextMaskShader : public QSGTextMaskShader -{ -public: - QSG8BitTextMaskShader(QFontEngine::GlyphFormat glyphFormat) - : QSGTextMaskShader(glyphFormat) - { - setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qt-project.org/scenegraph/shaders/8bittextmask.frag")); - } - - void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) override; -}; - -void QSG8BitTextMaskShader::updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) -{ - QSGTextMaskShader::updateState(state, newEffect, oldEffect); - QSGTextMaskMaterial *material = static_cast<QSGTextMaskMaterial *>(newEffect); - QSGTextMaskMaterial *oldMaterial = static_cast<QSGTextMaskMaterial *>(oldEffect); - - if (oldMaterial == nullptr || material->color() != oldMaterial->color() || state.isOpacityDirty()) { - QVector4D color = qsg_premultiply(material->color(), state.opacity()); - program()->setUniformValue(m_color_id, color); - } -} - -class QSG24BitTextMaskShader : public QSGTextMaskShader -{ -public: - QSG24BitTextMaskShader(QFontEngine::GlyphFormat glyphFormat) - : QSGTextMaskShader(glyphFormat) - , m_useSRGB(false) - { - setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qt-project.org/scenegraph/shaders/24bittextmask.frag")); - } - - void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) override; - void initialize() override; - void activate() override; - void deactivate() override; - - bool useSRGB() const; - uint m_useSRGB : 1; -}; - -void QSG24BitTextMaskShader::initialize() -{ - QSGTextMaskShader::initialize(); - // 0.25 was found to be acceptable error margin by experimentation. On Mac, the gamma is 2.0, - // but using sRGB looks okay. - if (QOpenGLContext::currentContext()->hasExtension(QByteArrayLiteral("GL_ARB_framebuffer_sRGB")) - && m_glyphFormat == QFontEngine::Format_A32 - && qAbs(fontSmoothingGamma() - 2.2) < 0.25) { - QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); - GLint srgbCapable = 0; - funcs->glGetIntegerv(GL_FRAMEBUFFER_SRGB_CAPABLE, &srgbCapable); - if (srgbCapable) - m_useSRGB = true; - } -} - -bool QSG24BitTextMaskShader::useSRGB() const -{ -#ifdef Q_OS_MACOS - if (!m_useSRGB) - return false; - - // m_useSRGB is true, but if some QOGLFBO was bound check it's texture format: - QOpenGLContext *ctx = QOpenGLContext::currentContext(); - QOpenGLFramebufferObject *qfbo = QOpenGLContextPrivate::get(ctx)->qgl_current_fbo; - bool fboInvalid = QOpenGLContextPrivate::get(ctx)->qgl_current_fbo_invalid; - return !qfbo || fboInvalid || qfbo->format().internalTextureFormat() == GL_SRGB8_ALPHA8_EXT; -#else - return m_useSRGB; -#endif -} - -void QSG24BitTextMaskShader::activate() -{ - QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); - funcs->glBlendFunc(GL_CONSTANT_COLOR, GL_ONE_MINUS_SRC_COLOR); - if (useSRGB()) - funcs->glEnable(GL_FRAMEBUFFER_SRGB); -} - -void QSG24BitTextMaskShader::deactivate() -{ - QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); - funcs->glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); - if (useSRGB()) - funcs->glDisable(GL_FRAMEBUFFER_SRGB); -} - -void QSG24BitTextMaskShader::updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) -{ - QSGTextMaskShader::updateState(state, newEffect, oldEffect); - QSGTextMaskMaterial *material = static_cast<QSGTextMaskMaterial *>(newEffect); - QSGTextMaskMaterial *oldMaterial = static_cast<QSGTextMaskMaterial *>(oldEffect); - - if (oldMaterial == nullptr || material->color() != oldMaterial->color() || state.isOpacityDirty()) { - QVector4D color = material->color(); - if (useSRGB()) - color = qt_sRGB_to_linear_RGB(color); - QOpenGLContext::currentContext()->functions()->glBlendColor(color.x(), color.y(), color.z(), color.w()); - color = qsg_premultiply(color, state.opacity()); - program()->setUniformValue(m_color_id, color.w()); - } -} - -class QSG32BitColorTextShader : public QSGTextMaskShader -{ -public: - QSG32BitColorTextShader(QFontEngine::GlyphFormat glyphFormat) - : QSGTextMaskShader(glyphFormat) - { - setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qt-project.org/scenegraph/shaders/32bitcolortext.frag")); - } - - void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) override; -}; - -void QSG32BitColorTextShader::updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) -{ - QSGTextMaskShader::updateState(state, newEffect, oldEffect); - QSGTextMaskMaterial *material = static_cast<QSGTextMaskMaterial *>(newEffect); - QSGTextMaskMaterial *oldMaterial = static_cast<QSGTextMaskMaterial *>(oldEffect); - - if (oldMaterial == nullptr || material->color() != oldMaterial->color() || state.isOpacityDirty()) { - float opacity = material->color().w() * state.opacity(); - program()->setUniformValue(m_color_id, opacity); - } -} - -class QSGStyledTextShader : public QSG8BitTextMaskShader -{ -public: - QSGStyledTextShader(QFontEngine::GlyphFormat glyphFormat) - : QSG8BitTextMaskShader(glyphFormat) - { - setShaderSourceFile(QOpenGLShader::Vertex, QStringLiteral(":/qt-project.org/scenegraph/shaders/styledtext.vert")); - setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qt-project.org/scenegraph/shaders/styledtext.frag")); - } - - void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) override; - -private: - void initialize() override; - - int m_shift_id; - int m_styleColor_id; -}; - -void QSGStyledTextShader::initialize() -{ - QSG8BitTextMaskShader::initialize(); - m_shift_id = program()->uniformLocation("shift"); - m_styleColor_id = program()->uniformLocation("styleColor"); -} - -void QSGStyledTextShader::updateState(const RenderState &state, - QSGMaterial *newEffect, - QSGMaterial *oldEffect) -{ - Q_ASSERT(oldEffect == nullptr || newEffect->type() == oldEffect->type()); - - QSGStyledTextMaterial *material = static_cast<QSGStyledTextMaterial *>(newEffect); - QSGStyledTextMaterial *oldMaterial = static_cast<QSGStyledTextMaterial *>(oldEffect); - - if (oldMaterial == nullptr || oldMaterial->styleShift() != material->styleShift()) - program()->setUniformValue(m_shift_id, material->styleShift()); - - if (oldMaterial == nullptr || material->color() != oldMaterial->color() || state.isOpacityDirty()) { - QVector4D color = qsg_premultiply(material->color(), state.opacity()); - program()->setUniformValue(m_color_id, color); - } - - if (oldMaterial == nullptr || material->styleColor() != oldMaterial->styleColor() || state.isOpacityDirty()) { - QVector4D styleColor = qsg_premultiply(material->styleColor(), state.opacity()); - program()->setUniformValue(m_styleColor_id, styleColor); - } - - bool updated = material->ensureUpToDate(); - Q_ASSERT(material->texture()); - - Q_ASSERT(oldMaterial == nullptr || oldMaterial->texture()); - if (updated - || oldMaterial == nullptr - || oldMaterial->texture()->textureId() != material->texture()->textureId()) { - program()->setUniformValue(m_textureScale_id, QVector2D(1.0 / material->openglGlyphCache()->width(), - 1.0 / material->openglGlyphCache()->height())); - QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); - funcs->glBindTexture(GL_TEXTURE_2D, material->texture()->textureId()); - - // Set the mag/min filters to be nearest. We only need to do this when the texture - // has been recreated. - if (updated) { - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - } - } - - if (state.isMatrixDirty()) - program()->setUniformValue(m_matrix_id, state.combinedMatrix()); -} - -class QSGOutlinedTextShader : public QSGStyledTextShader -{ -public: - QSGOutlinedTextShader(QFontEngine::GlyphFormat glyphFormat) - : QSGStyledTextShader(glyphFormat) - { - setShaderSourceFile(QOpenGLShader::Vertex, QStringLiteral(":/qt-project.org/scenegraph/shaders/outlinedtext.vert")); - setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qt-project.org/scenegraph/shaders/outlinedtext.frag")); - } -}; - - -// ***** RHI shader implementations - -class QSGTextMaskRhiShader : public QSGMaterialRhiShader +class QSGTextMaskRhiShader : public QSGMaterialShader { public: QSGTextMaskRhiShader(QFontEngine::GlyphFormat glyphFormat); @@ -721,7 +421,6 @@ void QSGTextMaskMaterial::init(QFontEngine::GlyphFormat glyphFormat) { Q_ASSERT(m_font.isValid()); - setFlag(SupportsRhiShader, true); setFlag(Blending, true); Q_ASSERT(m_rc); @@ -902,28 +601,16 @@ QSGRhiTextureGlyphCache *QSGTextMaskMaterial::rhiGlyphCache() const QSGMaterialShader *QSGTextMaskMaterial::createShader() const { - if (flags().testFlag(RhiShaderWanted)) { - QSGRhiTextureGlyphCache *gc = rhiGlyphCache(); - const QFontEngine::GlyphFormat glyphFormat = gc->glyphFormat(); - switch (glyphFormat) { - case QFontEngine::Format_ARGB: - return new QSG32BitColorTextRhiShader(glyphFormat); - case QFontEngine::Format_A32: - return new QSG24BitTextMaskRhiShader(glyphFormat); - case QFontEngine::Format_A8: - default: - return new QSG8BitTextMaskRhiShader(glyphFormat, gc->eightBitFormatIsAlphaSwizzled()); - } - } else { - switch (QFontEngine::GlyphFormat glyphFormat = glyphCache()->glyphFormat()) { - case QFontEngine::Format_ARGB: - return new QSG32BitColorTextShader(glyphFormat); - case QFontEngine::Format_A32: - return new QSG24BitTextMaskShader(glyphFormat); - case QFontEngine::Format_A8: - default: - return new QSG8BitTextMaskShader(glyphFormat); - } + QSGRhiTextureGlyphCache *gc = rhiGlyphCache(); + const QFontEngine::GlyphFormat glyphFormat = gc->glyphFormat(); + switch (glyphFormat) { + case QFontEngine::Format_ARGB: + return new QSG32BitColorTextRhiShader(glyphFormat); + case QFontEngine::Format_A32: + return new QSG24BitTextMaskRhiShader(glyphFormat); + case QFontEngine::Format_A8: + default: + return new QSG8BitTextMaskRhiShader(glyphFormat, gc->eightBitFormatIsAlphaSwizzled()); } } @@ -996,12 +683,8 @@ QSGMaterialType *QSGStyledTextMaterial::type() const QSGMaterialShader *QSGStyledTextMaterial::createShader() const { - if (flags().testFlag(RhiShaderWanted)) { - QSGRhiTextureGlyphCache *gc = rhiGlyphCache(); - return new QSGStyledTextRhiShader(gc->glyphFormat(), gc->eightBitFormatIsAlphaSwizzled()); - } else { - return new QSGStyledTextShader(glyphCache()->glyphFormat()); - } + QSGRhiTextureGlyphCache *gc = rhiGlyphCache(); + return new QSGStyledTextRhiShader(gc->glyphFormat(), gc->eightBitFormatIsAlphaSwizzled()); } int QSGStyledTextMaterial::compare(const QSGMaterial *o) const @@ -1031,12 +714,8 @@ QSGMaterialType *QSGOutlinedTextMaterial::type() const QSGMaterialShader *QSGOutlinedTextMaterial::createShader() const { - if (flags().testFlag(RhiShaderWanted)) { - QSGRhiTextureGlyphCache *gc = rhiGlyphCache(); - return new QSGOutlinedTextRhiShader(gc->glyphFormat(), gc->eightBitFormatIsAlphaSwizzled()); - } else { - return new QSGOutlinedTextShader(glyphCache()->glyphFormat()); - } + QSGRhiTextureGlyphCache *gc = rhiGlyphCache(); + return new QSGOutlinedTextRhiShader(gc->glyphFormat(), gc->eightBitFormatIsAlphaSwizzled()); } QT_END_NAMESPACE |