OpenCoverage

qtextureglyphcache_gl.cpp

Absolute File Name:/home/qt/qt5_coco/qt5/qtbase/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp
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4-
5QBasicAtomicInt qgltextureglyphcache_serial_number = { 1 };-
6-
7QGLTextureGlyphCache::QGLTextureGlyphCache(QFontEngine::GlyphFormat format, const QTransform &matrix)-
8 : QImageTextureGlyphCache(format, matrix)-
9 , m_textureResource(0)-
10 , pex(0)-
11 , m_blitProgram(0)-
12 , m_filterMode(Nearest)-
13 , m_serialNumber(qgltextureglyphcache_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: end of block
0
36-
37QGLTextureGlyphCache::~QGLTextureGlyphCache()-
38{-
39-
40-
41-
42 delete m_blitProgram;-
43 if (m_textureResource
m_textureResourceDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
44 m_textureResource->free();
never executed: m_textureResource->free();
0
45}
never executed: end of block
0
46-
47void QGLTextureGlyphCache::createTextureData(int width, int height)-
48{-
49 QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext());-
50 if (ctx == 0
ctx == 0Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
51 QMessageLogger(__FILE__, 94, __PRETTY_FUNCTION__).warning("QGLTextureGlyphCache::createTextureData: Called with no context");-
52 return;
never executed: return;
0
53 }-
54 QOpenGLFunctions *funcs = ctx->contextHandle()->functions();-
55-
56-
57-
58-
59 if ((!QGLFramebufferObject::hasOpenGLFramebufferObjects()
!QGLFramebuffe...ufferObjects()Description
TRUEnever evaluated
FALSEnever evaluated
 || ctx->d_ptr->workaround_brokenFBOReadBack
ctx->d_ptr->wo...kenFBOReadBackDescription
TRUEnever evaluated
FALSEnever evaluated
) && image().isNull()
image().isNull()Description
TRUEnever evaluated
FALSEnever evaluated
)		0
60 QImageTextureGlyphCache::createTextureData(width, height);
never executed: QImageTextureGlyphCache::createTextureData(width, height);
0
61-
62-
63 if (width < 16
width < 16Description
TRUEnever evaluated
FALSEnever evaluated
)		0
64 width = 16;
never executed: width = 16;
0
65 if (height < 16
height < 16Description
TRUEnever evaluated
FALSEnever evaluated
)		0
66 height = 16;
never executed: height = 16;
0
67-
68 if (m_textureResource
m_textureResourceDescription
TRUEnever evaluated
FALSEnever evaluated
 && !m_textureResource->m_texture
!m_textureResource->m_textureDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
69 delete m_textureResource;-
70 m_textureResource = 0;-
71 }
never executed: end of block
0
72-
73 if (!m_textureResource
!m_textureResourceDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
74 m_textureResource = new QGLGlyphTexture(ctx);
never executed: m_textureResource = new QGLGlyphTexture(ctx);
0
75-
76 funcs->glGenTextures(1, &m_textureResource->m_texture);-
77 funcs->glBindTexture(0x0DE1, m_textureResource->m_texture);-
78-
79 m_textureResource->m_width = width;-
80 m_textureResource->m_height = height;-
81-
82 if (m_format == QFontEngine::Format_A32
m_format == QF...ne::Format_A32Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
83 QVarLengthArray<uchar> data(width * height * 4);-
84 for (int i = 0; i < data.size()
i < data.size()Description
TRUEnever evaluated
FALSEnever evaluated
; ++i)		0
85 data[i] = 0;
never executed: data[i] = 0;
0
86 funcs->glTexImage2D(0x0DE1, 0, 0x1908, width, height, 0, 0x1908, 0x1401, &data[0]);-
87 }
never executed: end of block
 else {		0
88 QVarLengthArray<uchar> data(width * height);-
89 for (int i = 0; i < data.size()
i < data.size()Description
TRUEnever evaluated
FALSEnever evaluated
; ++i)		0
90 data[i] = 0;
never executed: data[i] = 0;
0
91 funcs->glTexImage2D(0x0DE1, 0, 0x1906, width, height, 0, 0x1906, 0x1401, &data[0]);-
92 }
never executed: end of block
0
93-
94 funcs->glTexParameteri(0x0DE1, 0x2800, 0x2600);-
95 funcs->glTexParameteri(0x0DE1, 0x2801, 0x2600);-
96 funcs->glTexParameteri(0x0DE1, 0x2802, 0x812F);-
97 funcs->glTexParameteri(0x0DE1, 0x2803, 0x812F);-
98 m_filterMode = Nearest;-
99}
never executed: end of block
0
100-
101void QGLTextureGlyphCache::resizeTextureData(int width, int height)-
102{-
103 QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext());-
104 if (ctx == 0
ctx == 0Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
105 QMessageLogger(__FILE__, 148, __PRETTY_FUNCTION__).warning("QGLTextureGlyphCache::resizeTextureData: Called with no context");-
106 return;
never executed: return;
0
107 }-
108 QOpenGLFunctions *funcs = ctx->contextHandle()->functions();-
109-
110 int oldWidth = m_textureResource->m_width;-
111 int oldHeight = m_textureResource->m_height;-
112-
113-
114 if (width < 16
width < 16Description
TRUEnever evaluated
FALSEnever evaluated
)		0
115 width = 16;
never executed: width = 16;
0
116 if (height < 16
height < 16Description
TRUEnever evaluated
FALSEnever evaluated
)		0
117 height = 16;
never executed: height = 16;
0
118-
119 GLuint oldTexture = m_textureResource->m_texture;-
120 createTextureData(width, height);-
121-
122 if (!QGLFramebufferObject::hasOpenGLFramebufferObjects()
!QGLFramebuffe...ufferObjects()Description
TRUEnever evaluated
FALSEnever evaluated
 || ctx->d_ptr->workaround_brokenFBOReadBack
ctx->d_ptr->wo...kenFBOReadBackDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
123 QImageTextureGlyphCache::resizeTextureData(width, height);-
124 ((!(image().depth() == 8)) ? qt_assert("image().depth() == 8",__FILE__,167) : qt_noop());-
125 funcs->glTexSubImage2D(0x0DE1, 0, 0, 0, width, oldHeight, 0x1906, 0x1401, image().constBits());-
126 funcs->glDeleteTextures(1, &oldTexture);-
127 return;
never executed: return;
0
128 }-
129-
130-
131-
132-
133 ctx->d_ptr->refreshCurrentFbo();-
134-
135 funcs->glBindFramebuffer(0x8D40, m_textureResource->m_fbo);-
136-
137 GLuint tmp_texture;-
138 funcs->glGenTextures(1, &tmp_texture);-
139 funcs->glBindTexture(0x0DE1, tmp_texture);-
140 funcs->glTexImage2D(0x0DE1, 0, 0x1908, oldWidth, oldHeight, 0,-
141 0x1908, 0x1401, __null);-
142 funcs->glTexParameteri(0x0DE1, 0x2801, 0x2600);-
143 funcs->glTexParameteri(0x0DE1, 0x2800, 0x2600);-
144 funcs->glTexParameteri(0x0DE1, 0x2802, 0x812F);-
145 funcs->glTexParameteri(0x0DE1, 0x2803, 0x812F);-
146 m_filterMode = Nearest;-
147 funcs->glBindTexture(0x0DE1, 0);-
148 funcs->glFramebufferTexture2D(0x8D40, 0x8CE0,-
149 0x0DE1, tmp_texture, 0);-
150-
151 funcs->glActiveTexture(0x84C0 + GLuint(0));-
152 funcs->glBindTexture(0x0DE1, oldTexture);-
153-
154 if (pex != 0
pex != 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
155 pex->transferMode(BrushDrawingMode);
never executed: pex->transferMode(BrushDrawingMode);
0
156-
157 funcs->glDisable(0x0B90);-
158 funcs->glDisable(0x0B71);-
159 funcs->glDisable(0x0C11);-
160 funcs->glDisable(0x0BE2);-
161-
162 funcs->glViewport(0, 0, oldWidth, oldHeight);-
163-
164 QGLShaderProgram *blitProgram = 0;-
165 if (pex == 0
pex == 0Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
166 if (m_blitProgram == 0
m_blitProgram == 0Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
167 m_blitProgram = new QGLShaderProgram(ctx);-
168-
169 {-
170 QString source;-
171 source.append(QLatin1String(qglslMainWithTexCoordsVertexShader));-
172 source.append(QLatin1String(qglslUntransformedPositionVertexShader));-
173-
174 QGLShader *vertexShader = new QGLShader(QGLShader::Vertex, m_blitProgram);-
175 vertexShader->compileSourceCode(source);-
176-
177 m_blitProgram->addShader(vertexShader);-
178 }-
179-
180 {-
181 QString source;-
182 source.append(QLatin1String(qglslMainFragmentShader));-
183 source.append(QLatin1String(qglslImageSrcFragmentShader));-
184-
185 QGLShader *fragmentShader = new QGLShader(QGLShader::Fragment, m_blitProgram);-
186 fragmentShader->compileSourceCode(source);-
187-
188 m_blitProgram->addShader(fragmentShader);-
189 }-
190-
191 m_blitProgram->bindAttributeLocation("vertexCoordsArray", QT_VERTEX_COORDS_ATTR);-
192 m_blitProgram->bindAttributeLocation("textureCoordArray", QT_TEXTURE_COORDS_ATTR);-
193-
194 m_blitProgram->link();-
195 }
never executed: end of block
0
196-
197 funcs->glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, 0x1406, 0, 0, m_vertexCoordinateArray);-
198 funcs->glVertexAttribPointer(QT_TEXTURE_COORDS_ATTR, 2, 0x1406, 0, 0, m_textureCoordinateArray);-
199-
200 m_blitProgram->bind();-
201 m_blitProgram->enableAttributeArray(int(QT_VERTEX_COORDS_ATTR));-
202 m_blitProgram->enableAttributeArray(int(QT_TEXTURE_COORDS_ATTR));-
203 m_blitProgram->disableAttributeArray(int(QT_OPACITY_ATTR));-
204-
205 blitProgram = m_blitProgram;-
206-
207 }
never executed: end of block
 else {		0
208 pex->setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, m_vertexCoordinateArray);-
209 pex->setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, m_textureCoordinateArray);-
210-
211 pex->shaderManager->useBlitProgram();-
212 blitProgram = pex->shaderManager->blitProgram();-
213 }
never executed: end of block
0
214-
215 blitProgram->setUniformValue("imageTexture", GLuint(0));-
216-
217 funcs->glDrawArrays(0x0006, 0, 4);-
218-
219 funcs->glBindTexture(0x0DE1, m_textureResource->m_texture);-
220-
221 funcs->glCopyTexSubImage2D(0x0DE1, 0, 0, 0, 0, 0, oldWidth, oldHeight);-
222-
223 funcs->glFramebufferRenderbuffer(0x8D40, 0x8CE0,-
224 0x8D41, 0);-
225 funcs->glDeleteTextures(1, &tmp_texture);-
226 funcs->glDeleteTextures(1, &oldTexture);-
227-
228 funcs->glBindFramebuffer(0x8D40, ctx->d_ptr->current_fbo);-
229-
230 if (pex != 0
pex != 0Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
231 funcs->glViewport(0, 0, pex->width, pex->height);-
232 pex->updateClipScissorTest();-
233 }
never executed: end of block
0
234}
never executed: end of block
0
235-
236void QGLTextureGlyphCache::fillTexture(const Coord &c, glyph_t glyph, QFixed subPixelPosition)-
237{-
238 QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext());-
239 if (ctx == 0
ctx == 0Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
240 QMessageLogger(__FILE__, 283, __PRETTY_FUNCTION__).warning("QGLTextureGlyphCache::fillTexture: Called with no context");-
241 return;
never executed: return;
0
242 }-
243 QOpenGLFunctions *funcs = ctx->contextHandle()->functions();-
244-
245 if (!QGLFramebufferObject::hasOpenGLFramebufferObjects()
!QGLFramebuffe...ufferObjects()Description
TRUEnever evaluated
FALSEnever evaluated
 || ctx->d_ptr->workaround_brokenFBOReadBack
ctx->d_ptr->wo...kenFBOReadBackDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
246 QImageTextureGlyphCache::fillTexture(c, glyph, subPixelPosition);-
247-
248 funcs->glBindTexture(0x0DE1, m_textureResource->m_texture);-
249 const QImage &texture = image();-
250 const uchar *bits = texture.constBits();-
251 bits += c.y * texture.bytesPerLine() + c.x;-
252 for (int i=0; i<c.h
i<c.hDescription
TRUEnever evaluated
FALSEnever evaluated
; ++i) {		0
253 funcs->glTexSubImage2D(0x0DE1, 0, c.x, c.y + i, c.w, 1, 0x1906, 0x1401, bits);-
254 bits += texture.bytesPerLine();-
255 }
never executed: end of block
0
256 return;
never executed: return;
0
257 }-
258-
259 QImage mask = textureMapForGlyph(glyph, subPixelPosition);-
260 const int maskWidth = mask.width();-
261 const int maskHeight = mask.height();-
262-
263 if (mask.format() == QImage::Format_Mono
mask.format() ...e::Format_MonoDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
264 mask = mask.convertToFormat(QImage::Format_Indexed8);-
265 for (int y = 0; y < maskHeight
y < maskHeightDescription
TRUEnever evaluated
FALSEnever evaluated
; ++y) {		0
266 uchar *src = (uchar *) mask.scanLine(y);-
267 for (int x = 0; x < maskWidth
x < maskWidthDescription
TRUEnever evaluated
FALSEnever evaluated
; ++x)		0
268 src[x] = -src[x];
never executed: src[x] = -src[x];
0
269 }
never executed: end of block
0
270 }
never executed: end of block
 else if (mask.depth() == 32
mask.depth() == 32Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
271-
272-
273 for (int y = 0; y < maskHeight
y < maskHeightDescription
TRUEnever evaluated
FALSEnever evaluated
; ++y) {		0
274 quint32 *src = (quint32 *) mask.scanLine(y);-
275 for (int x = 0; x < maskWidth
x < maskWidthDescription
TRUEnever evaluated
FALSEnever evaluated
; ++x) {		0
276 int r = qRed(src[x]);-
277 int g = qGreen(src[x]);-
278 int b = qBlue(src[x]);-
279 int avg;-
280 if (mask.format() == QImage::Format_RGB32
mask.format() ...::Format_RGB32Description
TRUEnever evaluated
FALSEnever evaluated
)		0
281 avg = (r + g + b + 1) / 3;
never executed: avg = (r + g + b + 1) / 3;
0
282 else-
283 avg = qAlpha(src[x]);
never executed: avg = qAlpha(src[x]);
0
284 if (ctx->contextHandle()->isOpenGLES()
ctx->contextHa...->isOpenGLES()Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
285-
286 src[x] = (avg << 24) | (r << 0) | (g << 8) | (b << 16);-
287 }
never executed: end of block
 else {		0
288 src[x] = (src[x] & 0x00ffffff) | (avg << 24);-
289 }
never executed: end of block
0
290 }-
291 }
never executed: end of block
0
292 }
never executed: end of block
0
293-
294 funcs->glBindTexture(0x0DE1, m_textureResource->m_texture);-
295 if (mask.depth() == 32
mask.depth() == 32Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
296 GLenum format = 0x1908;-
297-
298 if (!ctx->contextHandle()->isOpenGLES()
!ctx->contextH...->isOpenGLES()Description
TRUEnever evaluated
FALSEnever evaluated
)		0
299 format = 0x80E1;
never executed: format = 0x80E1;
0
300-
301 funcs->glTexSubImage2D(0x0DE1, 0, c.x, c.y, maskWidth, maskHeight, format, 0x1401, mask.bits());-
302 }
never executed: end of block
 else {		0
303 if (!ctx->d_ptr->workaround_brokenAlphaTexSubImage_init
!ctx->d_ptr->w...xSubImage_initDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
304-
305 const QByteArray vendorString(reinterpret_cast<const char*>(funcs->glGetString(0x1F00)));-
306 ctx->d_ptr->workaround_brokenAlphaTexSubImage = vendorString.indexOf("NVIDIA") >= 0;-
307 ctx->d_ptr->workaround_brokenAlphaTexSubImage_init = true;-
308 }
never executed: end of block
0
309-
310 if (ctx->d_ptr->workaround_brokenAlphaTexSubImage
ctx->d_ptr->wo...phaTexSubImageDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
311 for (int i = 0; i < maskHeight
i < maskHeightDescription
TRUEnever evaluated
FALSEnever evaluated
; ++i)		0
312 funcs->glTexSubImage2D(0x0DE1, 0, c.x, c.y + i, maskWidth, 1, 0x1906, 0x1401, mask.scanLine(i));
never executed: funcs->glTexSubImage2D(0x0DE1, 0, c.x, c.y + i, maskWidth, 1, 0x1906, 0x1401, mask.scanLine(i));
0
313 }
never executed: end of block
 else {		0
314 funcs->glTexSubImage2D(0x0DE1, 0, c.x, c.y, maskWidth, maskHeight, 0x1906, 0x1401, mask.bits());-
315 }
never executed: end of block
0
316 }-
317}-
318-
319int QGLTextureGlyphCache::glyphPadding() const-
320{-
321 return
never executed: return 1;
 1;
never executed: return 1;
0
322}-
323-
324int QGLTextureGlyphCache::maxTextureWidth() const-
325{-
326 QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext());-
327 if (ctx == 0
ctx == 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
328 return
never executed: return QImageTextureGlyphCache::maxTextureWidth();
 QImageTextureGlyphCache::maxTextureWidth();
never executed: return QImageTextureGlyphCache::maxTextureWidth();
0
329 else-
330 return
never executed: return ctx->d_ptr->maxTextureSize();
 ctx->d_ptr->maxTextureSize();
never executed: return ctx->d_ptr->maxTextureSize();
0
331}-
332-
333int QGLTextureGlyphCache::maxTextureHeight() const-
334{-
335 QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext());-
336 if (ctx == 0
ctx == 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
337 return
never executed: return QImageTextureGlyphCache::maxTextureHeight();
 QImageTextureGlyphCache::maxTextureHeight();
never executed: return QImageTextureGlyphCache::maxTextureHeight();
0
338-
339 if (ctx->d_ptr->workaround_brokenTexSubImage
ctx->d_ptr->wo...kenTexSubImageDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
340 return
never executed: return qMin(1024, ctx->d_ptr->maxTextureSize());
 qMin(1024, ctx->d_ptr->maxTextureSize());
never executed: return qMin(1024, ctx->d_ptr->maxTextureSize());
0
341 else-
342 return
never executed: return ctx->d_ptr->maxTextureSize();
 ctx->d_ptr->maxTextureSize();
never executed: return ctx->d_ptr->maxTextureSize();
0
343}-
344-
345void QGLTextureGlyphCache::clear()-
346{-
347 m_textureResource->free();-
348 m_textureResource = 0;-
349-
350 m_w = 0;-
351 m_h = 0;-
352 m_cx = 0;-
353 m_cy = 0;-
354 m_currentRowHeight = 0;-
355 coords.clear();-
356}
never executed: end of block
0
357-
358-
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