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39 | |
40 | #include "qsgdefaultinternalimagenode_p.h" |
41 | #include <private/qsgdefaultrendercontext_p.h> |
42 | #include <private/qsgmaterialshader_p.h> |
43 | #include <private/qsgtexturematerial_p.h> |
44 | #include <QtGui/qopenglfunctions.h> |
45 | #include <QtCore/qmath.h> |
46 | #include <QtGui/private/qrhi_p.h> |
47 | |
48 | QT_BEGIN_NAMESPACE |
49 | |
50 | class SmoothTextureMaterialShader : public QSGTextureMaterialShader |
51 | { |
52 | public: |
53 | SmoothTextureMaterialShader(); |
54 | |
55 | void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) override; |
56 | char const *const *attributeNames() const override; |
57 | |
58 | protected: |
59 | void initialize() override; |
60 | |
61 | int m_pixelSizeLoc; |
62 | }; |
63 | |
64 | class SmoothTextureMaterialRhiShader : public QSGTextureMaterialRhiShader |
65 | { |
66 | public: |
67 | SmoothTextureMaterialRhiShader(); |
68 | |
69 | bool updateUniformData(RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial) override; |
70 | }; |
71 | |
72 | |
73 | QSGSmoothTextureMaterial::QSGSmoothTextureMaterial() |
74 | { |
75 | setFlag(flags: SupportsRhiShader, on: true); |
76 | setFlag(flags: RequiresFullMatrixExceptTranslate, on: true); |
77 | setFlag(flags: Blending, on: true); |
78 | } |
79 | |
80 | void QSGSmoothTextureMaterial::setTexture(QSGTexture *texture) |
81 | { |
82 | m_texture = texture; |
83 | } |
84 | |
85 | QSGMaterialType *QSGSmoothTextureMaterial::type() const |
86 | { |
87 | static QSGMaterialType type; |
88 | return &type; |
89 | } |
90 | |
91 | QSGMaterialShader *QSGSmoothTextureMaterial::createShader() const |
92 | { |
93 | if (flags().testFlag(flag: RhiShaderWanted)) |
94 | return new SmoothTextureMaterialRhiShader; |
95 | else |
96 | return new SmoothTextureMaterialShader; |
97 | } |
98 | |
99 | SmoothTextureMaterialShader::SmoothTextureMaterialShader() |
100 | { |
101 | setShaderSourceFile(type: QOpenGLShader::Vertex, QStringLiteral(":/qt-project.org/scenegraph/shaders/smoothtexture.vert" )); |
102 | setShaderSourceFile(type: QOpenGLShader::Fragment, QStringLiteral(":/qt-project.org/scenegraph/shaders/smoothtexture.frag" )); |
103 | } |
104 | |
105 | void SmoothTextureMaterialShader::updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) |
106 | { |
107 | if (oldEffect == nullptr) { |
108 | // The viewport is constant, so set the pixel size uniform only once. |
109 | QRect r = state.viewportRect(); |
110 | program()->setUniformValue(location: m_pixelSizeLoc, x: 2.0f / r.width(), y: 2.0f / r.height()); |
111 | } |
112 | QSGTextureMaterialShader::updateState(state, newEffect, oldEffect); |
113 | } |
114 | |
115 | char const *const *SmoothTextureMaterialShader::attributeNames() const |
116 | { |
117 | static char const *const attributes[] = { |
118 | "vertex" , |
119 | "multiTexCoord" , |
120 | "vertexOffset" , |
121 | "texCoordOffset" , |
122 | nullptr |
123 | }; |
124 | return attributes; |
125 | } |
126 | |
127 | void SmoothTextureMaterialShader::initialize() |
128 | { |
129 | m_pixelSizeLoc = program()->uniformLocation(name: "pixelSize" ); |
130 | QSGTextureMaterialShader::initialize(); |
131 | } |
132 | |
133 | SmoothTextureMaterialRhiShader::SmoothTextureMaterialRhiShader() |
134 | { |
135 | setShaderFileName(stage: VertexStage, QStringLiteral(":/qt-project.org/scenegraph/shaders_ng/smoothtexture.vert.qsb" )); |
136 | setShaderFileName(stage: FragmentStage, QStringLiteral(":/qt-project.org/scenegraph/shaders_ng/smoothtexture.frag.qsb" )); |
137 | } |
138 | |
139 | bool SmoothTextureMaterialRhiShader::updateUniformData(RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial) |
140 | { |
141 | bool changed = false; |
142 | QByteArray *buf = state.uniformData(); |
143 | |
144 | if (!oldMaterial) { |
145 | // The viewport is constant, so set the pixel size uniform only once (per batches with the same material). |
146 | const QRect r = state.viewportRect(); |
147 | const QVector2D v(2.0f / r.width(), 2.0f / r.height()); |
148 | memcpy(dest: buf->data() + 64 + 8, src: &v, n: 8); |
149 | changed = true; |
150 | } |
151 | |
152 | changed |= QSGTextureMaterialRhiShader::updateUniformData(state, newMaterial, oldMaterial); |
153 | |
154 | return changed; |
155 | } |
156 | |
157 | |
158 | QSGDefaultInternalImageNode::QSGDefaultInternalImageNode(QSGDefaultRenderContext *rc) |
159 | : m_rc(rc) |
160 | { |
161 | setMaterial(&m_materialO); |
162 | setOpaqueMaterial(&m_material); |
163 | } |
164 | |
165 | void QSGDefaultInternalImageNode::setFiltering(QSGTexture::Filtering filtering) |
166 | { |
167 | if (m_material.filtering() == filtering) |
168 | return; |
169 | |
170 | m_material.setFiltering(filtering); |
171 | m_materialO.setFiltering(filtering); |
172 | m_smoothMaterial.setFiltering(filtering); |
173 | markDirty(bits: DirtyMaterial); |
174 | } |
175 | |
176 | void QSGDefaultInternalImageNode::setMipmapFiltering(QSGTexture::Filtering filtering) |
177 | { |
178 | if (m_material.mipmapFiltering() == filtering) |
179 | return; |
180 | |
181 | m_material.setMipmapFiltering(filtering); |
182 | m_materialO.setMipmapFiltering(filtering); |
183 | m_smoothMaterial.setMipmapFiltering(filtering); |
184 | markDirty(bits: DirtyMaterial); |
185 | } |
186 | |
187 | void QSGDefaultInternalImageNode::setVerticalWrapMode(QSGTexture::WrapMode wrapMode) |
188 | { |
189 | if (m_material.verticalWrapMode() == wrapMode) |
190 | return; |
191 | |
192 | m_material.setVerticalWrapMode(wrapMode); |
193 | m_materialO.setVerticalWrapMode(wrapMode); |
194 | m_smoothMaterial.setVerticalWrapMode(wrapMode); |
195 | markDirty(bits: DirtyMaterial); |
196 | } |
197 | |
198 | void QSGDefaultInternalImageNode::setHorizontalWrapMode(QSGTexture::WrapMode wrapMode) |
199 | { |
200 | if (m_material.horizontalWrapMode() == wrapMode) |
201 | return; |
202 | |
203 | m_material.setHorizontalWrapMode(wrapMode); |
204 | m_materialO.setHorizontalWrapMode(wrapMode); |
205 | m_smoothMaterial.setHorizontalWrapMode(wrapMode); |
206 | markDirty(bits: DirtyMaterial); |
207 | } |
208 | |
209 | void QSGDefaultInternalImageNode::updateMaterialAntialiasing() |
210 | { |
211 | if (m_antialiasing) { |
212 | setMaterial(&m_smoothMaterial); |
213 | setOpaqueMaterial(nullptr); |
214 | } else { |
215 | setMaterial(&m_materialO); |
216 | setOpaqueMaterial(&m_material); |
217 | } |
218 | } |
219 | |
220 | void QSGDefaultInternalImageNode::setMaterialTexture(QSGTexture *texture) |
221 | { |
222 | m_material.setTexture(texture); |
223 | m_materialO.setTexture(texture); |
224 | m_smoothMaterial.setTexture(texture); |
225 | } |
226 | |
227 | QSGTexture *QSGDefaultInternalImageNode::materialTexture() const |
228 | { |
229 | return m_material.texture(); |
230 | } |
231 | |
232 | bool QSGDefaultInternalImageNode::updateMaterialBlending() |
233 | { |
234 | const bool alpha = m_material.flags() & QSGMaterial::Blending; |
235 | if (materialTexture() && alpha != materialTexture()->hasAlphaChannel()) { |
236 | m_material.setFlag(flags: QSGMaterial::Blending, on: !alpha); |
237 | return true; |
238 | } |
239 | return false; |
240 | } |
241 | |
242 | inline static bool isPowerOfTwo(int x) |
243 | { |
244 | // Assumption: x >= 1 |
245 | return x == (x & -x); |
246 | } |
247 | |
248 | bool QSGDefaultInternalImageNode::supportsWrap(const QSize &size) const |
249 | { |
250 | bool wrapSupported = true; |
251 | |
252 | if (m_rc->rhi()) { |
253 | wrapSupported = m_rc->rhi()->isFeatureSupported(feature: QRhi::NPOTTextureRepeat) |
254 | || (isPowerOfTwo(x: size.width()) && isPowerOfTwo(x: size.height())); |
255 | } else { |
256 | QOpenGLContext *ctx = QOpenGLContext::currentContext(); |
257 | #ifndef QT_OPENGL_ES_2 |
258 | if (ctx->isOpenGLES()) |
259 | #endif |
260 | { |
261 | bool npotSupported = ctx->functions()->hasOpenGLFeature(feature: QOpenGLFunctions::NPOTTextureRepeat); |
262 | const bool isNpot = !isPowerOfTwo(x: size.width()) || !isPowerOfTwo(x: size.height()); |
263 | wrapSupported = npotSupported || !isNpot; |
264 | } |
265 | } |
266 | |
267 | return wrapSupported; |
268 | } |
269 | |
270 | QT_END_NAMESPACE |
271 | |