opengl/qopengltextureglyphcache.cpp

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LineSource CodeCoverage
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2 -
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4 -
5QBasicAtomicInt qopengltextureglyphcache_serial_number = { (1) }; -
6 -
7QOpenGLTextureGlyphCache::QOpenGLTextureGlyphCache(QFontEngineGlyphCache::Type type, const QTransform &matrix) -
8 : QImageTextureGlyphCache(type, matrix) -
9 , m_textureResource(0) -
10 , pex(0) -
11 , m_blitProgram(0) -
12 , m_filterMode(Nearest) -
13 , m_serialNumber(qopengltextureglyphcache_serial_number.fetchAndAddRelaxed(1)) -
14{ -
15 -
16 -
17 -
18 m_vertexCoordinateArray[0] = -1.0f; -
19 m_vertexCoordinateArray[1] = -1.0f; -
20 m_vertexCoordinateArray[2] = 1.0f; -
21 m_vertexCoordinateArray[3] = -1.0f; -
22 m_vertexCoordinateArray[4] = 1.0f; -
23 m_vertexCoordinateArray[5] = 1.0f; -
24 m_vertexCoordinateArray[6] = -1.0f; -
25 m_vertexCoordinateArray[7] = 1.0f; -
26 -
27 m_textureCoordinateArray[0] = 0.0f; -
28 m_textureCoordinateArray[1] = 0.0f; -
29 m_textureCoordinateArray[2] = 1.0f; -
30 m_textureCoordinateArray[3] = 0.0f; -
31 m_textureCoordinateArray[4] = 1.0f; -
32 m_textureCoordinateArray[5] = 1.0f; -
33 m_textureCoordinateArray[6] = 0.0f; -
34 m_textureCoordinateArray[7] = 1.0f; -
35}
never executed: }
0
36 -
37QOpenGLTextureGlyphCache::~QOpenGLTextureGlyphCache() -
38{ -
39 -
40 -
41 -
42} -
43 -
44void QOpenGLTextureGlyphCache::createTextureData(int width, int height) -
45{ -
46 QOpenGLContext *ctx = const_cast<QOpenGLContext *>(QOpenGLContext::currentContext()); -
47 if (ctx == 0) {
never evaluated: ctx == 0
0
48 QMessageLogger("opengl/qopengltextureglyphcache.cpp", 93, __PRETTY_FUNCTION__).warning("QOpenGLTextureGlyphCache::createTextureData: Called with no context"); -
49 return;
never executed: return;
0
50 } -
51 -
52 -
53 -
54 -
55 if (ctx->d_func()->workaround_brokenFBOReadBack && image().isNull())
never evaluated: ctx->d_func()->workaround_brokenFBOReadBack
never evaluated: image().isNull()
0
56 QImageTextureGlyphCache::createTextureData(width, height);
never executed: QImageTextureGlyphCache::createTextureData(width, height);
0
57 -
58 -
59 if (width < 16)
never evaluated: width < 16
0
60 width = 16;
never executed: width = 16;
0
61 if (height < 16)
never evaluated: height < 16
0
62 height = 16;
never executed: height = 16;
0
63 -
64 if (m_textureResource && !m_textureResource->m_texture) {
never evaluated: m_textureResource
never evaluated: !m_textureResource->m_texture
0
65 delete m_textureResource; -
66 m_textureResource = 0; -
67 }
never executed: }
0
68 -
69 if (!m_textureResource)
never evaluated: !m_textureResource
0
70 m_textureResource = new QOpenGLGlyphTexture(ctx);
never executed: m_textureResource = new QOpenGLGlyphTexture(ctx);
0
71 -
72 glGenTextures(1, &m_textureResource->m_texture); -
73 glBindTexture(0x0DE1, m_textureResource->m_texture); -
74 -
75 m_textureResource->m_width = width; -
76 m_textureResource->m_height = height; -
77 -
78 if (m_type == QFontEngineGlyphCache::Raster_RGBMask) {
never evaluated: m_type == QFontEngineGlyphCache::Raster_RGBMask
0
79 QVarLengthArray<uchar> data(width * height * 4); -
80 for (int i = 0; i < data.size(); ++i)
never evaluated: i < data.size()
0
81 data[i] = 0;
never executed: data[i] = 0;
0
82 glTexImage2D(0x0DE1, 0, 0x1908, width, height, 0, 0x1908, 0x1401, &data[0]); -
83 } else {
never executed: }
0
84 QVarLengthArray<uchar> data(width * height); -
85 for (int i = 0; i < data.size(); ++i)
never evaluated: i < data.size()
0
86 data[i] = 0;
never executed: data[i] = 0;
0
87 glTexImage2D(0x0DE1, 0, 0x1906, width, height, 0, 0x1906, 0x1401, &data[0]); -
88 }
never executed: }
0
89 -
90 glTexParameteri(0x0DE1, 0x2800, 0x2600); -
91 glTexParameteri(0x0DE1, 0x2801, 0x2600); -
92 glTexParameteri(0x0DE1, 0x2802, 0x812F); -
93 glTexParameteri(0x0DE1, 0x2803, 0x812F); -
94 m_filterMode = Nearest; -
95}
never executed: }
0
96 -
97void QOpenGLTextureGlyphCache::resizeTextureData(int width, int height) -
98{ -
99 QOpenGLContext *ctx = QOpenGLContext::currentContext(); -
100 if (ctx == 0) {
never evaluated: ctx == 0
0
101 QMessageLogger("opengl/qopengltextureglyphcache.cpp", 146, __PRETTY_FUNCTION__).warning("QOpenGLTextureGlyphCache::resizeTextureData: Called with no context"); -
102 return;
never executed: return;
0
103 } -
104 -
105 int oldWidth = m_textureResource->m_width; -
106 int oldHeight = m_textureResource->m_height; -
107 -
108 -
109 if (width < 16)
never evaluated: width < 16
0
110 width = 16;
never executed: width = 16;
0
111 if (height < 16)
never evaluated: height < 16
0
112 height = 16;
never executed: height = 16;
0
113 -
114 GLuint oldTexture = m_textureResource->m_texture; -
115 createTextureData(width, height); -
116 -
117 if (ctx->d_func()->workaround_brokenFBOReadBack) {
never evaluated: ctx->d_func()->workaround_brokenFBOReadBack
0
118 QImageTextureGlyphCache::resizeTextureData(width, height); -
119 qt_noop(); -
120 glTexSubImage2D(0x0DE1, 0, 0, 0, width, oldHeight, 0x1906, 0x1401, image().constBits()); -
121 glDeleteTextures(1, &oldTexture); -
122 return;
never executed: return;
0
123 } -
124 -
125 -
126 -
127 -
128 QOpenGLFunctions funcs(ctx); -
129 -
130 funcs.glBindFramebuffer(0x8D40, m_textureResource->m_fbo); -
131 -
132 GLuint tmp_texture; -
133 glGenTextures(1, &tmp_texture); -
134 glBindTexture(0x0DE1, tmp_texture); -
135 glTexImage2D(0x0DE1, 0, 0x1908, oldWidth, oldHeight, 0, -
136 0x1908, 0x1401, __null); -
137 glTexParameteri(0x0DE1, 0x2801, 0x2600); -
138 glTexParameteri(0x0DE1, 0x2800, 0x2600); -
139 glTexParameteri(0x0DE1, 0x2802, 0x812F); -
140 glTexParameteri(0x0DE1, 0x2803, 0x812F); -
141 m_filterMode = Nearest; -
142 glBindTexture(0x0DE1, 0); -
143 funcs.glFramebufferTexture2D(0x8D40, 0x8CE0, -
144 0x0DE1, tmp_texture, 0); -
145 -
146 funcs.glActiveTexture(0x84C0 + GLuint(0)); -
147 glBindTexture(0x0DE1, oldTexture); -
148 -
149 if (pex != 0)
never evaluated: pex != 0
0
150 pex->transferMode(BrushDrawingMode);
never executed: pex->transferMode(BrushDrawingMode);
0
151 -
152 glDisable(0x0B90); -
153 glDisable(0x0B71); -
154 glDisable(0x0C11); -
155 glDisable(0x0BE2); -
156 -
157 glViewport(0, 0, oldWidth, oldHeight); -
158 -
159 QOpenGLShaderProgram *blitProgram = 0; -
160 if (pex == 0) {
never evaluated: pex == 0
0
161 if (m_blitProgram == 0) {
never evaluated: m_blitProgram == 0
0
162 m_blitProgram = new QOpenGLShaderProgram(ctx); -
163 -
164 { -
165 QString source; -
166 source.append(QLatin1String(qopenglslMainWithTexCoordsVertexShader)); -
167 source.append(QLatin1String(qopenglslUntransformedPositionVertexShader)); -
168 -
169 QOpenGLShader *vertexShader = new QOpenGLShader(QOpenGLShader::Vertex, m_blitProgram); -
170 vertexShader->compileSourceCode(source); -
171 -
172 m_blitProgram->addShader(vertexShader); -
173 } -
174 -
175 { -
176 QString source; -
177 source.append(QLatin1String(qopenglslMainFragmentShader)); -
178 source.append(QLatin1String(qopenglslImageSrcFragmentShader)); -
179 -
180 QOpenGLShader *fragmentShader = new QOpenGLShader(QOpenGLShader::Fragment, m_blitProgram); -
181 fragmentShader->compileSourceCode(source); -
182 -
183 m_blitProgram->addShader(fragmentShader); -
184 } -
185 -
186 m_blitProgram->bindAttributeLocation("vertexCoordsArray", QT_VERTEX_COORDS_ATTR); -
187 m_blitProgram->bindAttributeLocation("textureCoordArray", QT_TEXTURE_COORDS_ATTR); -
188 -
189 m_blitProgram->link(); -
190 }
never executed: }
0
191 -
192 funcs.glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, 0x1406, 0x0, 0, m_vertexCoordinateArray); -
193 funcs.glVertexAttribPointer(QT_TEXTURE_COORDS_ATTR, 2, 0x1406, 0x0, 0, m_textureCoordinateArray); -
194 -
195 m_blitProgram->bind(); -
196 m_blitProgram->enableAttributeArray(int(QT_VERTEX_COORDS_ATTR)); -
197 m_blitProgram->enableAttributeArray(int(QT_TEXTURE_COORDS_ATTR)); -
198 m_blitProgram->disableAttributeArray(int(QT_OPACITY_ATTR)); -
199 -
200 blitProgram = m_blitProgram; -
201 -
202 } else {
never executed: }
0
203 pex->setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, m_vertexCoordinateArray); -
204 pex->setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, m_textureCoordinateArray); -
205 -
206 pex->shaderManager->useBlitProgram(); -
207 blitProgram = pex->shaderManager->blitProgram(); -
208 }
never executed: }
0
209 -
210 blitProgram->setUniformValue("imageTexture", GLuint(0)); -
211 -
212 glDrawArrays(0x0006, 0, 4); -
213 -
214 glBindTexture(0x0DE1, m_textureResource->m_texture); -
215 -
216 glCopyTexSubImage2D(0x0DE1, 0, 0, 0, 0, 0, oldWidth, oldHeight); -
217 -
218 funcs.glFramebufferRenderbuffer(0x8D40, 0x8CE0, -
219 0x8D41, 0); -
220 glDeleteTextures(1, &tmp_texture); -
221 glDeleteTextures(1, &oldTexture); -
222 -
223 funcs.glBindFramebuffer(0x8D40, ctx->d_func()->current_fbo); -
224 -
225 if (pex != 0) {
never evaluated: pex != 0
0
226 glViewport(0, 0, pex->width, pex->height); -
227 pex->updateClipScissorTest(); -
228 } else {
never executed: }
0
229 m_blitProgram->disableAttributeArray(int(QT_VERTEX_COORDS_ATTR)); -
230 m_blitProgram->disableAttributeArray(int(QT_TEXTURE_COORDS_ATTR)); -
231 }
never executed: }
0
232} -
233 -
234void QOpenGLTextureGlyphCache::fillTexture(const Coord &c, glyph_t glyph, QFixed subPixelPosition) -
235{ -
236 QOpenGLContext *ctx = QOpenGLContext::currentContext(); -
237 if (ctx == 0) {
never evaluated: ctx == 0
0
238 QMessageLogger("opengl/qopengltextureglyphcache.cpp", 283, __PRETTY_FUNCTION__).warning("QOpenGLTextureGlyphCache::fillTexture: Called with no context"); -
239 return;
never executed: return;
0
240 } -
241 -
242 if (ctx->d_func()->workaround_brokenFBOReadBack) {
never evaluated: ctx->d_func()->workaround_brokenFBOReadBack
0
243 QImageTextureGlyphCache::fillTexture(c, glyph, subPixelPosition); -
244 -
245 glBindTexture(0x0DE1, m_textureResource->m_texture); -
246 const QImage &texture = image(); -
247 const uchar *bits = texture.constBits(); -
248 bits += c.y * texture.bytesPerLine() + c.x; -
249 for (int i=0; i<c.h; ++i) {
never evaluated: i<c.h
0
250 glTexSubImage2D(0x0DE1, 0, c.x, c.y + i, c.w, 1, 0x1906, 0x1401, bits); -
251 bits += texture.bytesPerLine(); -
252 }
never executed: }
0
253 return;
never executed: return;
0
254 } -
255 -
256 QImage mask = textureMapForGlyph(glyph, subPixelPosition); -
257 const int maskWidth = mask.width(); -
258 const int maskHeight = mask.height(); -
259 -
260 -
261 -
262 -
263 -
264 -
265 if (mask.format() == QImage::Format_Mono) {
never evaluated: mask.format() == QImage::Format_Mono
0
266 mask = mask.convertToFormat(QImage::Format_Indexed8); -
267 for (int y = 0; y < maskHeight; ++y) {
never evaluated: y < maskHeight
0
268 uchar *src = (uchar *) mask.scanLine(y); -
269 for (int x = 0; x < maskWidth; ++x)
never evaluated: x < maskWidth
0
270 src[x] = -src[x];
never executed: src[x] = -src[x];
0
271 }
never executed: }
0
272 } else if (mask.format() == QImage::Format_RGB32) {
never executed: }
never evaluated: mask.format() == QImage::Format_RGB32
0
273 -
274 -
275 for (int y = 0; y < maskHeight; ++y) {
never evaluated: y < maskHeight
0
276 quint32 *src = (quint32 *) mask.scanLine(y); -
277 for (int x = 0; x < maskWidth; ++x) {
never evaluated: x < maskWidth
0
278 uchar r = src[x] >> 16; -
279 uchar g = src[x] >> 8; -
280 uchar b = src[x]; -
281 quint32 avg = (quint32(r) + quint32(g) + quint32(b) + 1) / 3; -
282 -
283 -
284 -
285 -
286 -
287 -
288 -
289 src[x] = (src[x] & 0x00ffffff) | (avg << 24); -
290 }
never executed: }
0
291 }
never executed: }
0
292 }
never executed: }
0
293 -
294 glBindTexture(0x0DE1, m_textureResource->m_texture); -
295 if (mask.format() == QImage::Format_RGB32) {
never evaluated: mask.format() == QImage::Format_RGB32
0
296 -
297 -
298 -
299 glTexSubImage2D(0x0DE1, 0, c.x, c.y, maskWidth, maskHeight, 0x80E1, 0x1401, mask.bits()); -
300 -
301 } else {
never executed: }
0
302 glTexSubImage2D(0x0DE1, 0, c.x, c.y, maskWidth, maskHeight, 0x1906, 0x1401, mask.bits()); -
303 -
304 }
never executed: }
0
305} -
306 -
307int QOpenGLTextureGlyphCache::glyphPadding() const -
308{ -
309 return 1;
never executed: return 1;
0
310} -
311 -
312int QOpenGLTextureGlyphCache::maxTextureWidth() const -
313{ -
314 QOpenGLContext *ctx = const_cast<QOpenGLContext *>(QOpenGLContext::currentContext()); -
315 if (ctx == 0)
never evaluated: ctx == 0
0
316 return QImageTextureGlyphCache::maxTextureWidth();
never executed: return QImageTextureGlyphCache::maxTextureWidth();
0
317 else -
318 return ctx->d_func()->maxTextureSize();
never executed: return ctx->d_func()->maxTextureSize();
0
319} -
320 -
321int QOpenGLTextureGlyphCache::maxTextureHeight() const -
322{ -
323 QOpenGLContext *ctx = const_cast<QOpenGLContext *>(QOpenGLContext::currentContext()); -
324 if (ctx == 0)
never evaluated: ctx == 0
0
325 return QImageTextureGlyphCache::maxTextureHeight();
never executed: return QImageTextureGlyphCache::maxTextureHeight();
0
326 -
327 if (ctx->d_func()->workaround_brokenTexSubImage)
never evaluated: ctx->d_func()->workaround_brokenTexSubImage
0
328 return qMin(1024, ctx->d_func()->maxTextureSize());
never executed: return qMin(1024, ctx->d_func()->maxTextureSize());
0
329 else -
330 return ctx->d_func()->maxTextureSize();
never executed: return ctx->d_func()->maxTextureSize();
0
331} -
332 -
333void QOpenGLTextureGlyphCache::clear() -
334{ -
335 m_textureResource->free(); -
336 m_textureResource = 0; -
337 -
338 m_w = 0; -
339 m_h = 0; -
340 m_cx = 0; -
341 m_cy = 0; -
342 m_currentRowHeight = 0; -
343 coords.clear(); -
344}
never executed: }
0
345 -
346 -
347 -
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