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| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** This file is part of the QtQuick module of the Qt Toolkit. |
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| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
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| ****************************************************************************/ |
| |
| #include "qsgdefaultspritenode_p.h" |
| |
| #include <QtQuick/QSGMaterial> |
| #include <QtGui/QOpenGLShaderProgram> |
| |
| QT_BEGIN_NAMESPACE |
| |
| struct SpriteVertex { |
| float x; |
| float y; |
| float tx; |
| float ty; |
| }; |
| |
| struct SpriteVertices { |
| SpriteVertex v1; |
| SpriteVertex v2; |
| SpriteVertex v3; |
| SpriteVertex v4; |
| }; |
| |
| class QQuickSpriteMaterial : public QSGMaterial |
| { |
| public: |
| QQuickSpriteMaterial(); |
| ~QQuickSpriteMaterial(); |
| QSGMaterialType *type() const override { static QSGMaterialType type; return &type; } |
| QSGMaterialShader *createShader() const override; |
| int compare(const QSGMaterial *other) const override |
| { |
| return this - static_cast<const QQuickSpriteMaterial *>(other); |
| } |
| |
| QSGTexture *texture = nullptr; |
| |
| float animT = 0.0f; |
| float animX1 = 0.0f; |
| float animY1 = 0.0f; |
| float animX2 = 0.0f; |
| float animY2 = 0.0f; |
| float animW = 1.0f; |
| float animH = 1.0f; |
| }; |
| |
| QQuickSpriteMaterial::QQuickSpriteMaterial() |
| { |
| setFlag(Blending, true); |
| setFlag(SupportsRhiShader, true); |
| } |
| |
| QQuickSpriteMaterial::~QQuickSpriteMaterial() |
| { |
| delete texture; |
| } |
| |
| class SpriteMaterialShader : public QSGMaterialShader |
| { |
| public: |
| SpriteMaterialShader() |
| { |
| setShaderSourceFile(QOpenGLShader::Vertex, QStringLiteral(":/qt-project.org/scenegraph/shaders/sprite.vert")); |
| setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qt-project.org/scenegraph/shaders/sprite.frag")); |
| } |
| |
| void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *) override |
| { |
| QQuickSpriteMaterial *m = static_cast<QQuickSpriteMaterial *>(newEffect); |
| m->texture->bind(); |
| |
| program()->setUniformValue(m_opacity_id, state.opacity()); |
| program()->setUniformValue(m_animData_id, m->animW, m->animH, m->animT); |
| program()->setUniformValue(m_animPos_id, m->animX1, m->animY1, m->animX2, m->animY2); |
| |
| if (state.isMatrixDirty()) |
| program()->setUniformValue(m_matrix_id, state.combinedMatrix()); |
| } |
| |
| void initialize() override { |
| m_matrix_id = program()->uniformLocation("qt_Matrix"); |
| m_opacity_id = program()->uniformLocation("qt_Opacity"); |
| m_animData_id = program()->uniformLocation("animData"); |
| m_animPos_id = program()->uniformLocation("animPos"); |
| } |
| |
| char const *const *attributeNames() const override { |
| static const char *attr[] = { |
| "vPos", |
| "vTex", |
| nullptr |
| }; |
| return attr; |
| } |
| |
| int m_matrix_id; |
| int m_opacity_id; |
| int m_animData_id; |
| int m_animPos_id; |
| }; |
| |
| class SpriteMaterialRhiShader : public QSGMaterialRhiShader |
| { |
| public: |
| SpriteMaterialRhiShader(); |
| |
| bool updateUniformData(RenderState &state, |
| QSGMaterial *newMaterial, QSGMaterial *oldMaterial) override; |
| void updateSampledImage(RenderState &state, int binding, QSGTexture **texture, |
| QSGMaterial *newMaterial, QSGMaterial *oldMaterial) override; |
| }; |
| |
| SpriteMaterialRhiShader::SpriteMaterialRhiShader() |
| { |
| setShaderFileName(VertexStage, QStringLiteral(":/qt-project.org/scenegraph/shaders_ng/sprite.vert.qsb")); |
| setShaderFileName(FragmentStage, QStringLiteral(":/qt-project.org/scenegraph/shaders_ng/sprite.frag.qsb")); |
| } |
| |
| bool SpriteMaterialRhiShader::updateUniformData(RenderState &state, |
| QSGMaterial *newMaterial, QSGMaterial *oldMaterial) |
| { |
| #ifdef QT_NO_DEBUG |
| Q_UNUSED(oldMaterial); |
| #endif |
| Q_ASSERT(oldMaterial == nullptr || newMaterial->type() == oldMaterial->type()); |
| QQuickSpriteMaterial *mat = static_cast<QQuickSpriteMaterial *>(newMaterial); |
| |
| bool changed = false; |
| QByteArray *buf = state.uniformData(); |
| Q_ASSERT(buf->size() >= 96); |
| |
| if (state.isMatrixDirty()) { |
| const QMatrix4x4 m = state.combinedMatrix(); |
| memcpy(buf->data(), m.constData(), 64); |
| changed = true; |
| } |
| |
| float animPosAndData[7] = { mat->animX1, mat->animY1, mat->animX2, mat->animY2, |
| mat->animW, mat->animH, mat->animT }; |
| memcpy(buf->data() + 64, animPosAndData, 28); |
| changed = true; |
| |
| if (state.isOpacityDirty()) { |
| const float opacity = state.opacity(); |
| memcpy(buf->data() + 92, &opacity, 4); |
| changed = true; |
| } |
| |
| return changed; |
| } |
| |
| void SpriteMaterialRhiShader::updateSampledImage(RenderState &state, int binding, QSGTexture **texture, |
| QSGMaterial *newMaterial, QSGMaterial *oldMaterial) |
| { |
| if (binding != 1) |
| return; |
| |
| #ifdef QT_NO_DEBUG |
| Q_UNUSED(oldMaterial); |
| #endif |
| Q_ASSERT(oldMaterial == nullptr || newMaterial->type() == oldMaterial->type()); |
| QQuickSpriteMaterial *mat = static_cast<QQuickSpriteMaterial *>(newMaterial); |
| |
| QSGTexture *t = mat->texture; |
| t->updateRhiTexture(state.rhi(), state.resourceUpdateBatch()); |
| *texture = t; |
| } |
| |
| QSGMaterialShader *QQuickSpriteMaterial::createShader() const |
| { |
| if (flags().testFlag(RhiShaderWanted)) |
| return new SpriteMaterialRhiShader; |
| else |
| return new SpriteMaterialShader; |
| } |
| |
| static QSGGeometry::Attribute Sprite_Attributes[] = { |
| QSGGeometry::Attribute::create(0, 2, QSGGeometry::FloatType, true), // pos |
| QSGGeometry::Attribute::create(1, 2, QSGGeometry::FloatType), // tex |
| }; |
| |
| static QSGGeometry::AttributeSet Sprite_AttributeSet = |
| { |
| 2, // Attribute Count |
| (2+2) * sizeof(float), |
| Sprite_Attributes |
| }; |
| |
| QSGDefaultSpriteNode::QSGDefaultSpriteNode() |
| : m_material(new QQuickSpriteMaterial) |
| , m_geometryDirty(true) |
| , m_sheetSize(QSize(64, 64)) |
| { |
| // Setup geometry data |
| m_geometry = new QSGGeometry(Sprite_AttributeSet, 4, 6); |
| m_geometry->setDrawingMode(QSGGeometry::DrawTriangles); |
| quint16 *indices = m_geometry->indexDataAsUShort(); |
| indices[0] = 0; |
| indices[1] = 1; |
| indices[2] = 2; |
| indices[3] = 1; |
| indices[4] = 3; |
| indices[5] = 2; |
| |
| setGeometry(m_geometry); |
| setMaterial(m_material); |
| setFlag(OwnsGeometry, true); |
| setFlag(OwnsMaterial, true); |
| } |
| |
| void QSGDefaultSpriteNode::setTexture(QSGTexture *texture) |
| { |
| m_material->texture = texture; |
| m_geometryDirty = true; |
| markDirty(DirtyMaterial); |
| } |
| |
| void QSGDefaultSpriteNode::setTime(float time) |
| { |
| m_material->animT = time; |
| markDirty(DirtyMaterial); |
| } |
| |
| void QSGDefaultSpriteNode::setSourceA(const QPoint &source) |
| { |
| if (m_sourceA != source) { |
| m_sourceA = source; |
| m_material->animX1 = static_cast<float>(source.x()) / m_sheetSize.width(); |
| m_material->animY1 = static_cast<float>(source.y()) / m_sheetSize.height(); |
| markDirty(DirtyMaterial); |
| } |
| } |
| |
| void QSGDefaultSpriteNode::setSourceB(const QPoint &source) |
| { |
| if (m_sourceB != source) { |
| m_sourceB = source; |
| m_material->animX2 = static_cast<float>(source.x()) / m_sheetSize.width(); |
| m_material->animY2 = static_cast<float>(source.y()) / m_sheetSize.height(); |
| markDirty(DirtyMaterial); |
| } |
| } |
| |
| void QSGDefaultSpriteNode::setSpriteSize(const QSize &size) |
| { |
| if (m_spriteSize != size) { |
| m_spriteSize = size; |
| m_material->animW = static_cast<float>(size.width()) / m_sheetSize.width(); |
| m_material->animH = static_cast<float>(size.height()) / m_sheetSize.height(); |
| markDirty(DirtyMaterial); |
| } |
| |
| } |
| |
| void QSGDefaultSpriteNode::setSheetSize(const QSize &size) |
| { |
| if (m_sheetSize != size) { |
| m_sheetSize = size; |
| |
| // Update all dependent properties |
| m_material->animX1 = static_cast<float>(m_sourceA.x()) / m_sheetSize.width(); |
| m_material->animY1 = static_cast<float>(m_sourceA.y()) / m_sheetSize.height(); |
| m_material->animX2 = static_cast<float>(m_sourceB.x()) / m_sheetSize.width(); |
| m_material->animY2 = static_cast<float>(m_sourceB.y()) / m_sheetSize.height(); |
| m_material->animW = static_cast<float>(m_spriteSize.width()) / m_sheetSize.width(); |
| m_material->animH = static_cast<float>(m_spriteSize.height()) / m_sheetSize.height(); |
| markDirty(DirtyMaterial); |
| } |
| } |
| |
| void QSGDefaultSpriteNode::setSize(const QSizeF &size) |
| { |
| if (m_size != size) { |
| m_size = size; |
| m_geometryDirty = true; |
| } |
| } |
| |
| void QSGDefaultSpriteNode::setFiltering(QSGTexture::Filtering filtering) |
| { |
| m_material->texture->setFiltering(filtering); |
| markDirty(DirtyMaterial); |
| } |
| |
| void QSGDefaultSpriteNode::update() |
| { |
| if (m_geometryDirty) { |
| updateGeometry(); |
| m_geometryDirty = false; |
| } |
| } |
| |
| void QSGDefaultSpriteNode::updateGeometry() |
| { |
| if (!m_material->texture) |
| return; |
| |
| SpriteVertices *p = (SpriteVertices *) m_geometry->vertexData(); |
| |
| QRectF texRect = m_material->texture->normalizedTextureSubRect(); |
| |
| p->v1.tx = texRect.topLeft().x(); |
| p->v1.ty = texRect.topLeft().y(); |
| |
| p->v2.tx = texRect.topRight().x(); |
| p->v2.ty = texRect.topRight().y(); |
| |
| p->v3.tx = texRect.bottomLeft().x(); |
| p->v3.ty = texRect.bottomLeft().y(); |
| |
| p->v4.tx = texRect.bottomRight().x(); |
| p->v4.ty = texRect.bottomRight().y(); |
| |
| p->v1.x = 0; |
| p->v1.y = 0; |
| |
| p->v2.x = m_size.width(); |
| p->v2.y = 0; |
| |
| p->v3.x = 0; |
| p->v3.y = m_size.height(); |
| |
| p->v4.x = m_size.width(); |
| p->v4.y = m_size.height(); |
| markDirty(DirtyGeometry); |
| } |
| |
| QT_END_NAMESPACE |