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39 | |
40 | #include "qsgopenglatlastexture_p.h" |
41 | |
42 | #include <QtCore/QVarLengthArray> |
43 | #include <QtCore/QElapsedTimer> |
44 | #include <QtCore/QtMath> |
45 | |
46 | #include <QtGui/QOpenGLContext> |
47 | #include <QtGui/QOpenGLTexture> |
48 | #include <QtGui/QOpenGLFunctions> |
49 | #include <QtGui/QGuiApplication> |
50 | #include <QtGui/QScreen> |
51 | #include <QtGui/QSurface> |
52 | #include <QtGui/QWindow> |
53 | #include <QtGui/qpa/qplatformnativeinterface.h> |
54 | |
55 | #include <private/qqmlglobal_p.h> |
56 | #include <private/qsgtexture_p.h> |
57 | #include <private/qsgcompressedtexture_p.h> |
58 | #include <private/qsgcompressedatlastexture_p.h> |
59 | |
60 | #include <private/qquickprofiler_p.h> |
61 | |
62 | #include <qtquick_tracepoints_p.h> |
63 | |
64 | QT_BEGIN_NAMESPACE |
65 | |
66 | #ifndef GL_BGRA |
67 | #define GL_BGRA 0x80E1 |
68 | #endif |
69 | |
70 | int qt_sg_envInt(const char *name, int defaultValue); |
71 | |
72 | static QElapsedTimer qsg_renderer_timer; |
73 | |
74 | DEFINE_BOOL_CONFIG_OPTION(qsgEnableCompressedAtlas, QSG_ENABLE_COMPRESSED_ATLAS) |
75 | |
76 | namespace QSGOpenGLAtlasTexture |
77 | { |
78 | |
79 | Manager::Manager(const QSize &surfacePixelSize) |
80 | : m_atlas(nullptr) |
81 | { |
82 | QOpenGLContext *gl = QOpenGLContext::currentContext(); |
83 | Q_ASSERT(gl); |
84 | int max; |
85 | gl->functions()->glGetIntegerv(GL_MAX_TEXTURE_SIZE, params: &max); |
86 | |
87 | int w = qMin(a: max, b: qt_sg_envInt(name: "QSG_ATLAS_WIDTH" , defaultValue: qMax(a: 512U, b: qNextPowerOfTwo(v: surfacePixelSize.width() - 1)))); |
88 | int h = qMin(a: max, b: qt_sg_envInt(name: "QSG_ATLAS_HEIGHT" , defaultValue: qMax(a: 512U, b: qNextPowerOfTwo(v: surfacePixelSize.height() - 1)))); |
89 | |
90 | if (gl->surface()->surfaceClass() == QSurface::Window) { |
91 | QWindow *window = static_cast<QWindow *>(gl->surface()); |
92 | // Coverwindows, optimize for memory rather than speed |
93 | if ((window->type() & Qt::CoverWindow) == Qt::CoverWindow) { |
94 | w /= 2; |
95 | h /= 2; |
96 | } |
97 | } |
98 | |
99 | m_atlas_size_limit = qt_sg_envInt(name: "QSG_ATLAS_SIZE_LIMIT" , defaultValue: qMax(a: w, b: h) / 2); |
100 | m_atlas_size = QSize(w, h); |
101 | |
102 | qCDebug(QSG_LOG_INFO, "opengl texture atlas dimensions: %dx%d" , w, h); |
103 | } |
104 | |
105 | Manager::~Manager() |
106 | { |
107 | Q_ASSERT(m_atlas == nullptr); |
108 | Q_ASSERT(m_atlases.isEmpty()); |
109 | } |
110 | |
111 | void Manager::invalidate() |
112 | { |
113 | if (m_atlas) { |
114 | m_atlas->invalidate(); |
115 | m_atlas->deleteLater(); |
116 | m_atlas = nullptr; |
117 | } |
118 | |
119 | QHash<unsigned int, QSGCompressedAtlasTexture::Atlas*>::iterator i = m_atlases.begin(); |
120 | while (i != m_atlases.end()) { |
121 | i.value()->invalidate(); |
122 | i.value()->deleteLater(); |
123 | ++i; |
124 | } |
125 | m_atlases.clear(); |
126 | } |
127 | |
128 | QSGTexture *Manager::create(const QImage &image, bool hasAlphaChannel) |
129 | { |
130 | Texture *t = nullptr; |
131 | if (image.width() < m_atlas_size_limit && image.height() < m_atlas_size_limit) { |
132 | if (!m_atlas) |
133 | m_atlas = new Atlas(m_atlas_size); |
134 | // t may be null for atlas allocation failure |
135 | t = m_atlas->create(image); |
136 | if (t && !hasAlphaChannel && t->hasAlphaChannel()) |
137 | t->setHasAlphaChannel(false); |
138 | } |
139 | return t; |
140 | } |
141 | |
142 | QSGTexture *Manager::create(const QSGCompressedTextureFactory *factory) |
143 | { |
144 | QSGTexture *t = nullptr; |
145 | if (!qsgEnableCompressedAtlas() || !factory->m_textureData.isValid()) |
146 | return t; |
147 | |
148 | // TODO: further abstract the atlas and remove this restriction |
149 | unsigned int format = factory->m_textureData.glInternalFormat(); |
150 | switch (format) { |
151 | case QOpenGLTexture::RGB8_ETC1: |
152 | case QOpenGLTexture::RGB8_ETC2: |
153 | case QOpenGLTexture::RGBA8_ETC2_EAC: |
154 | case QOpenGLTexture::RGB8_PunchThrough_Alpha1_ETC2: |
155 | case QOpenGLTexture::RGB_DXT1: |
156 | case QOpenGLTexture::RGBA_DXT1: |
157 | case QOpenGLTexture::RGBA_DXT3: |
158 | case QOpenGLTexture::RGBA_DXT5: |
159 | break; |
160 | default: |
161 | return t; |
162 | } |
163 | |
164 | QSize size = factory->m_textureData.size(); |
165 | if (size.width() < m_atlas_size_limit && size.height() < m_atlas_size_limit) { |
166 | QHash<unsigned int, QSGCompressedAtlasTexture::Atlas*>::iterator i = m_atlases.find(key: format); |
167 | if (i == m_atlases.end()) { |
168 | // must be multiple of 4 |
169 | QSize paddedSize(((m_atlas_size.width() + 3) / 4) * 4, ((m_atlas_size.height() + 3) / 4) * 4); |
170 | i = m_atlases.insert(key: format, value: new QSGCompressedAtlasTexture::Atlas(paddedSize, format)); |
171 | } |
172 | |
173 | // must be multiple of 4 |
174 | QSize paddedSize(((size.width() + 3) / 4) * 4, ((size.height() + 3) / 4) * 4); |
175 | QByteArray data = factory->m_textureData.data(); |
176 | t = i.value()->create(data, dataLength: factory->m_textureData.dataLength(), dataOffset: factory->m_textureData.dataOffset(), size, paddedSize); |
177 | } |
178 | return t; |
179 | } |
180 | |
181 | AtlasBase::AtlasBase(const QSize &size) |
182 | : m_allocator(size) |
183 | , m_texture_id(0) |
184 | , m_size(size) |
185 | , m_allocated(false) |
186 | { |
187 | } |
188 | |
189 | AtlasBase::~AtlasBase() |
190 | { |
191 | Q_ASSERT(!m_texture_id); |
192 | } |
193 | |
194 | void AtlasBase::invalidate() |
195 | { |
196 | if (m_texture_id && QOpenGLContext::currentContext()) |
197 | QOpenGLContext::currentContext()->functions()->glDeleteTextures(n: 1, textures: &m_texture_id); |
198 | m_texture_id = 0; |
199 | } |
200 | |
201 | int AtlasBase::textureId() const |
202 | { |
203 | if (!m_texture_id) { |
204 | Q_ASSERT(QOpenGLContext::currentContext()); |
205 | QOpenGLContext::currentContext()->functions()->glGenTextures(n: 1, textures: &const_cast<AtlasBase *>(this)->m_texture_id); |
206 | } |
207 | |
208 | return m_texture_id; |
209 | } |
210 | |
211 | void AtlasBase::bind(QSGTexture::Filtering filtering) |
212 | { |
213 | QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); |
214 | if (!m_allocated) { |
215 | m_allocated = true; |
216 | |
217 | while (funcs->glGetError() != GL_NO_ERROR) ; |
218 | |
219 | funcs->glGenTextures(n: 1, textures: &m_texture_id); |
220 | funcs->glBindTexture(GL_TEXTURE_2D, texture: m_texture_id); |
221 | funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
222 | funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
223 | funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
224 | funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
225 | #if !defined(QT_OPENGL_ES_2) |
226 | if (!QOpenGLContext::currentContext()->isOpenGLES()) |
227 | funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, param: 0); |
228 | #endif |
229 | generateTexture(); |
230 | |
231 | GLenum errorCode = funcs->glGetError(); |
232 | if (errorCode == GL_OUT_OF_MEMORY) { |
233 | qDebug(msg: "QSGTextureAtlas: texture atlas allocation failed, out of memory" ); |
234 | funcs->glDeleteTextures(n: 1, textures: &m_texture_id); |
235 | m_texture_id = 0; |
236 | } else if (errorCode != GL_NO_ERROR) { |
237 | qDebug(msg: "QSGTextureAtlas: texture atlas allocation failed, code=%x" , errorCode); |
238 | funcs->glDeleteTextures(n: 1, textures: &m_texture_id); |
239 | m_texture_id = 0; |
240 | } |
241 | } else { |
242 | funcs->glBindTexture(GL_TEXTURE_2D, texture: m_texture_id); |
243 | } |
244 | |
245 | if (m_texture_id == 0) |
246 | return; |
247 | |
248 | // Upload all pending images.. |
249 | for (int i=0; i<m_pending_uploads.size(); ++i) { |
250 | |
251 | bool profileFrames = QSG_LOG_TIME_TEXTURE().isDebugEnabled(); |
252 | if (profileFrames) |
253 | qsg_renderer_timer.start(); |
254 | |
255 | Q_TRACE_SCOPE(QSG_texture_prepare); |
256 | Q_QUICK_SG_PROFILE_START(QQuickProfiler::SceneGraphTexturePrepare); |
257 | |
258 | // Skip bind, convert, swizzle; they're irrelevant |
259 | Q_QUICK_SG_PROFILE_SKIP(QQuickProfiler::SceneGraphTexturePrepare, |
260 | QQuickProfiler::SceneGraphTexturePrepareStart, 3); |
261 | Q_TRACE(QSG_texture_upload_entry); |
262 | |
263 | uploadPendingTexture(i); |
264 | |
265 | Q_TRACE(QSG_texture_upload_exit); |
266 | Q_QUICK_SG_PROFILE_RECORD(QQuickProfiler::SceneGraphTexturePrepare, |
267 | QQuickProfiler::SceneGraphTexturePrepareUpload); |
268 | |
269 | // Skip mipmap; unused |
270 | Q_QUICK_SG_PROFILE_SKIP(QQuickProfiler::SceneGraphTexturePrepare, |
271 | QQuickProfiler::SceneGraphTexturePrepareUpload, 1); |
272 | Q_QUICK_SG_PROFILE_REPORT(QQuickProfiler::SceneGraphTexturePrepare, |
273 | QQuickProfiler::SceneGraphTexturePrepareMipmap); |
274 | } |
275 | |
276 | GLenum f = filtering == QSGTexture::Nearest ? GL_NEAREST : GL_LINEAR; |
277 | funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, param: f); |
278 | funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, param: f); |
279 | |
280 | m_pending_uploads.clear(); |
281 | } |
282 | |
283 | void AtlasBase::remove(TextureBase *t) |
284 | { |
285 | QRect atlasRect = t->atlasSubRect(); |
286 | m_allocator.deallocate(rect: atlasRect); |
287 | m_pending_uploads.removeOne(t); |
288 | } |
289 | |
290 | Atlas::Atlas(const QSize &size) |
291 | : AtlasBase(size) |
292 | , m_atlas_transient_image_threshold(0) |
293 | { |
294 | |
295 | m_internalFormat = GL_RGBA; |
296 | m_externalFormat = GL_BGRA; |
297 | |
298 | #ifndef QT_OPENGL_ES |
299 | if (QOpenGLContext::currentContext()->isOpenGLES()) { |
300 | #endif |
301 | |
302 | #if defined(Q_OS_ANDROID) && !defined(Q_OS_ANDROID_EMBEDDED) |
303 | QString *deviceName = |
304 | static_cast<QString *>(QGuiApplication::platformNativeInterface()->nativeResourceForIntegration("AndroidDeviceName" )); |
305 | static bool wrongfullyReportsBgra8888Support = deviceName != 0 |
306 | && (deviceName->compare(QLatin1String("samsung SM-T211" ), Qt::CaseInsensitive) == 0 |
307 | || deviceName->compare(QLatin1String("samsung SM-T210" ), Qt::CaseInsensitive) == 0 |
308 | || deviceName->compare(QLatin1String("samsung SM-T215" ), Qt::CaseInsensitive) == 0); |
309 | #else |
310 | static bool wrongfullyReportsBgra8888Support = false; |
311 | // The Raspberry Pi (both 1 and 2) GPU refuses framebuffers with BGRA color attachments. |
312 | const GLubyte *renderer = QOpenGLContext::currentContext()->functions()->glGetString(GL_RENDERER); |
313 | if (renderer && strstr(haystack: (const char *) renderer, needle: "VideoCore IV" )) |
314 | wrongfullyReportsBgra8888Support = true; |
315 | #endif // ANDROID |
316 | |
317 | if (qEnvironmentVariableIsSet(varName: "QSG_ATLAS_NO_BGRA_WORKAROUNDS" )) |
318 | wrongfullyReportsBgra8888Support = false; |
319 | |
320 | const char *ext = (const char *) QOpenGLContext::currentContext()->functions()->glGetString(GL_EXTENSIONS); |
321 | if (ext && !wrongfullyReportsBgra8888Support |
322 | && (strstr(haystack: ext, needle: "GL_EXT_bgra" ) |
323 | || strstr(haystack: ext, needle: "GL_EXT_texture_format_BGRA8888" ) |
324 | || strstr(haystack: ext, needle: "GL_IMG_texture_format_BGRA8888" ))) { |
325 | m_internalFormat = m_externalFormat = GL_BGRA; |
326 | #if defined(Q_OS_DARWIN) && !defined(Q_OS_OSX) |
327 | } else if (ext && strstr(ext, "GL_APPLE_texture_format_BGRA8888" )) { |
328 | m_internalFormat = GL_RGBA; |
329 | m_externalFormat = GL_BGRA; |
330 | #endif // IOS || TVOS |
331 | } else { |
332 | m_internalFormat = m_externalFormat = GL_RGBA; |
333 | } |
334 | |
335 | #ifndef QT_OPENGL_ES |
336 | } |
337 | #endif |
338 | |
339 | m_use_bgra_fallback = qEnvironmentVariableIsSet(varName: "QSG_ATLAS_USE_BGRA_FALLBACK" ); |
340 | m_debug_overlay = qEnvironmentVariableIsSet(varName: "QSG_ATLAS_OVERLAY" ); |
341 | |
342 | // images smaller than this will retain their QImage. |
343 | // by default no images are retained (favoring memory) |
344 | // set to a very large value to retain all images (allowing quick removal from the atlas) |
345 | m_atlas_transient_image_threshold = qt_sg_envInt(name: "QSG_ATLAS_TRANSIENT_IMAGE_THRESHOLD" , defaultValue: 0); |
346 | } |
347 | |
348 | Atlas::~Atlas() |
349 | { |
350 | } |
351 | |
352 | Texture *Atlas::create(const QImage &image) |
353 | { |
354 | // No need to lock, as manager already locked it. |
355 | QRect rect = m_allocator.allocate(size: QSize(image.width() + 2, image.height() + 2)); |
356 | if (rect.width() > 0 && rect.height() > 0) { |
357 | Texture *t = new Texture(this, rect, image); |
358 | m_pending_uploads << t; |
359 | return t; |
360 | } |
361 | return nullptr; |
362 | } |
363 | |
364 | void Atlas::upload(Texture *texture) |
365 | { |
366 | const QImage &image = texture->image(); |
367 | const QRect &r = texture->atlasSubRect(); |
368 | |
369 | QImage tmp(r.width(), r.height(), QImage::Format_ARGB32_Premultiplied); |
370 | { |
371 | QPainter p(&tmp); |
372 | p.setCompositionMode(QPainter::CompositionMode_Source); |
373 | |
374 | int w = r.width(); |
375 | int h = r.height(); |
376 | int iw = image.width(); |
377 | int ih = image.height(); |
378 | |
379 | p.drawImage(x: 1, y: 1, image); |
380 | p.drawImage(x: 1, y: 0, image, sx: 0, sy: 0, sw: iw, sh: 1); |
381 | p.drawImage(x: 1, y: h - 1, image, sx: 0, sy: ih - 1, sw: iw, sh: 1); |
382 | p.drawImage(x: 0, y: 1, image, sx: 0, sy: 0, sw: 1, sh: ih); |
383 | p.drawImage(x: w - 1, y: 1, image, sx: iw - 1, sy: 0, sw: 1, sh: ih); |
384 | p.drawImage(x: 0, y: 0, image, sx: 0, sy: 0, sw: 1, sh: 1); |
385 | p.drawImage(x: 0, y: h - 1, image, sx: 0, sy: ih - 1, sw: 1, sh: 1); |
386 | p.drawImage(x: w - 1, y: 0, image, sx: iw - 1, sy: 0, sw: 1, sh: 1); |
387 | p.drawImage(x: w - 1, y: h - 1, image, sx: iw - 1, sy: ih - 1, sw: 1, sh: 1); |
388 | if (m_debug_overlay) { |
389 | p.setCompositionMode(QPainter::CompositionMode_SourceAtop); |
390 | p.fillRect(x: 0, y: 0, w: iw, h: ih, b: QBrush(QColor::fromRgbF(r: 1, g: 0, b: 1, a: 0.5))); |
391 | } |
392 | } |
393 | |
394 | if (m_externalFormat == GL_RGBA) |
395 | tmp = std::move(tmp).convertToFormat(f: QImage::Format_RGBA8888_Premultiplied); |
396 | QOpenGLContext::currentContext()->functions()->glTexSubImage2D(GL_TEXTURE_2D, level: 0, |
397 | xoffset: r.x(), yoffset: r.y(), width: r.width(), height: r.height(), |
398 | format: m_externalFormat, GL_UNSIGNED_BYTE, pixels: tmp.constBits()); |
399 | } |
400 | |
401 | void Atlas::uploadBgra(Texture *texture) |
402 | { |
403 | QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); |
404 | const QRect &r = texture->atlasSubRect(); |
405 | QImage image = texture->image(); |
406 | |
407 | if (image.isNull()) |
408 | return; |
409 | |
410 | if (image.format() != QImage::Format_ARGB32_Premultiplied |
411 | && image.format() != QImage::Format_RGB32) { |
412 | image = image.convertToFormat(f: QImage::Format_ARGB32_Premultiplied); |
413 | } |
414 | |
415 | if (m_debug_overlay) { |
416 | QPainter p(&image); |
417 | p.setCompositionMode(QPainter::CompositionMode_SourceAtop); |
418 | p.fillRect(x: 0, y: 0, w: image.width(), h: image.height(), b: QBrush(QColor::fromRgbF(r: 0, g: 1, b: 1, a: 0.5))); |
419 | } |
420 | |
421 | QVarLengthArray<quint32, 512> tmpBits(qMax(a: image.width() + 2, b: image.height() + 2)); |
422 | int iw = image.width(); |
423 | int ih = image.height(); |
424 | int bpl = image.bytesPerLine() / 4; |
425 | const quint32 *src = (const quint32 *) image.constBits(); |
426 | quint32 *dst = tmpBits.data(); |
427 | |
428 | // top row, padding corners |
429 | dst[0] = src[0]; |
430 | memcpy(dest: dst + 1, src: src, n: iw * sizeof(quint32)); |
431 | dst[1 + iw] = src[iw-1]; |
432 | funcs->glTexSubImage2D(GL_TEXTURE_2D, level: 0, xoffset: r.x(), yoffset: r.y(), width: iw + 2, height: 1, format: m_externalFormat, GL_UNSIGNED_BYTE, pixels: dst); |
433 | |
434 | // bottom row, padded corners |
435 | const quint32 *lastRow = src + bpl * (ih - 1); |
436 | dst[0] = lastRow[0]; |
437 | memcpy(dest: dst + 1, src: lastRow, n: iw * sizeof(quint32)); |
438 | dst[1 + iw] = lastRow[iw-1]; |
439 | funcs->glTexSubImage2D(GL_TEXTURE_2D, level: 0, xoffset: r.x(), yoffset: r.y() + ih + 1, width: iw + 2, height: 1, format: m_externalFormat, GL_UNSIGNED_BYTE, pixels: dst); |
440 | |
441 | // left column |
442 | for (int i=0; i<ih; ++i) |
443 | dst[i] = src[i * bpl]; |
444 | funcs->glTexSubImage2D(GL_TEXTURE_2D, level: 0, xoffset: r.x(), yoffset: r.y() + 1, width: 1, height: ih, format: m_externalFormat, GL_UNSIGNED_BYTE, pixels: dst); |
445 | |
446 | // right column |
447 | for (int i=0; i<ih; ++i) |
448 | dst[i] = src[i * bpl + iw - 1]; |
449 | funcs->glTexSubImage2D(GL_TEXTURE_2D, level: 0, xoffset: r.x() + iw + 1, yoffset: r.y() + 1, width: 1, height: ih, format: m_externalFormat, GL_UNSIGNED_BYTE, pixels: dst); |
450 | |
451 | // Inner part of the image.... |
452 | if (bpl != iw) { |
453 | int sy = r.y() + 1; |
454 | int ey = sy + r.height() - 2; |
455 | for (int y = sy; y < ey; ++y) { |
456 | funcs->glTexSubImage2D(GL_TEXTURE_2D, level: 0, xoffset: r.x() + 1, yoffset: y, width: r.width() - 2, height: 1, format: m_externalFormat, GL_UNSIGNED_BYTE, pixels: src); |
457 | src += bpl; |
458 | } |
459 | } else { |
460 | funcs->glTexSubImage2D(GL_TEXTURE_2D, level: 0, xoffset: r.x() + 1, yoffset: r.y() + 1, width: r.width() - 2, height: r.height() - 2, format: m_externalFormat, GL_UNSIGNED_BYTE, pixels: src); |
461 | } |
462 | } |
463 | |
464 | void Atlas::generateTexture() |
465 | { |
466 | QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); |
467 | funcs->glTexImage2D(GL_TEXTURE_2D, level: 0, internalformat: m_internalFormat, width: m_size.width(), height: m_size.height(), border: 0, format: m_externalFormat, GL_UNSIGNED_BYTE, pixels: nullptr); |
468 | |
469 | #if 0 |
470 | QImage pink(m_size.width(), m_size.height(), QImage::Format_ARGB32_Premultiplied); |
471 | pink.fill(0); |
472 | QPainter p(&pink); |
473 | QLinearGradient redGrad(0, 0, m_size.width(), 0); |
474 | redGrad.setColorAt(0, Qt::black); |
475 | redGrad.setColorAt(1, Qt::red); |
476 | p.fillRect(0, 0, m_size.width(), m_size.height(), redGrad); |
477 | p.setCompositionMode(QPainter::CompositionMode_Plus); |
478 | QLinearGradient blueGrad(0, 0, 0, m_size.height()); |
479 | blueGrad.setColorAt(0, Qt::black); |
480 | blueGrad.setColorAt(1, Qt::blue); |
481 | p.fillRect(0, 0, m_size.width(), m_size.height(), blueGrad); |
482 | p.end(); |
483 | |
484 | funcs->glTexImage2D(GL_TEXTURE_2D, 0, m_internalFormat, m_size.width(), m_size.height(), 0, m_externalFormat, GL_UNSIGNED_BYTE, pink.constBits()); |
485 | #endif |
486 | } |
487 | |
488 | void Atlas::uploadPendingTexture(int i) |
489 | { |
490 | Texture *t = static_cast<Texture*>(m_pending_uploads.at(i)); |
491 | if (m_externalFormat == GL_BGRA && |
492 | !m_use_bgra_fallback) { |
493 | uploadBgra(texture: t); |
494 | } else { |
495 | upload(texture: t); |
496 | } |
497 | const QSize textureSize = t->textureSize(); |
498 | if (textureSize.width() > m_atlas_transient_image_threshold || |
499 | textureSize.height() > m_atlas_transient_image_threshold) |
500 | t->releaseImage(); |
501 | |
502 | qCDebug(QSG_LOG_TIME_TEXTURE, "atlastexture uploaded in: %lldms (%dx%d)" , |
503 | qsg_renderer_timer.elapsed(), |
504 | t->textureSize().width(), |
505 | t->textureSize().height()); |
506 | } |
507 | |
508 | TextureBase::TextureBase(AtlasBase *atlas, const QRect &textureRect) |
509 | : m_allocated_rect(textureRect) |
510 | , m_atlas(atlas) |
511 | { |
512 | } |
513 | |
514 | TextureBase::~TextureBase() |
515 | { |
516 | m_atlas->remove(t: this); |
517 | } |
518 | |
519 | void TextureBase::bind() |
520 | { |
521 | m_atlas->bind(filtering: filtering()); |
522 | } |
523 | |
524 | Texture::Texture(Atlas *atlas, const QRect &textureRect, const QImage &image) |
525 | : TextureBase(atlas, textureRect) |
526 | , m_image(image) |
527 | , m_nonatlas_texture(nullptr) |
528 | , m_has_alpha(image.hasAlphaChannel()) |
529 | { |
530 | qreal w = atlas->size().width(); |
531 | qreal h = atlas->size().height(); |
532 | QRect nopad = atlasSubRectWithoutPadding(); |
533 | m_texture_coords_rect = QRectF(nopad.x() / w, |
534 | nopad.y() / h, |
535 | nopad.width() / w, |
536 | nopad.height() / h); |
537 | } |
538 | |
539 | Texture::~Texture() |
540 | { |
541 | if (m_nonatlas_texture) |
542 | delete m_nonatlas_texture; |
543 | } |
544 | |
545 | QSGTexture *Texture::removedFromAtlas() const |
546 | { |
547 | if (m_nonatlas_texture) { |
548 | m_nonatlas_texture->setMipmapFiltering(mipmapFiltering()); |
549 | m_nonatlas_texture->setFiltering(filtering()); |
550 | return m_nonatlas_texture; |
551 | } |
552 | |
553 | if (!m_image.isNull()) { |
554 | m_nonatlas_texture = new QSGPlainTexture(); |
555 | m_nonatlas_texture->setImage(m_image); |
556 | m_nonatlas_texture->setFiltering(filtering()); |
557 | |
558 | } else { |
559 | QOpenGLFunctions *f = QOpenGLContext::currentContext()->functions(); |
560 | // bind the atlas texture as an fbo and extract the texture.. |
561 | |
562 | // First extract the currently bound fbo so we can restore it later. |
563 | GLint currentFbo; |
564 | f->glGetIntegerv(GL_FRAMEBUFFER_BINDING, params: ¤tFbo); |
565 | |
566 | // Create an FBO and bind the atlas texture into it. |
567 | GLuint fbo; |
568 | f->glGenFramebuffers(n: 1, framebuffers: &fbo); |
569 | f->glBindFramebuffer(GL_FRAMEBUFFER, framebuffer: fbo); |
570 | f->glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture: m_atlas->textureId(), level: 0); |
571 | |
572 | // Create the target texture, QSGPlainTexture below will deal with the texparams, so we don't |
573 | // need to worry about those here. |
574 | GLuint texture; |
575 | f->glGenTextures(n: 1, textures: &texture); |
576 | f->glBindTexture(GL_TEXTURE_2D, texture); |
577 | QRect r = atlasSubRectWithoutPadding(); |
578 | // and copy atlas into our texture. |
579 | while (f->glGetError() != GL_NO_ERROR) ; |
580 | f->glCopyTexImage2D(GL_TEXTURE_2D, level: 0, internalformat: static_cast<Atlas*>(m_atlas)->internalFormat(), x: r.x(), y: r.y(), width: r.width(), height: r.height(), border: 0); |
581 | // BGRA may have been rejected by some GLES implementations |
582 | if (f->glGetError() != GL_NO_ERROR) |
583 | f->glCopyTexImage2D(GL_TEXTURE_2D, level: 0, GL_RGBA, x: r.x(), y: r.y(), width: r.width(), height: r.height(), border: 0); |
584 | |
585 | m_nonatlas_texture = new QSGPlainTexture(); |
586 | m_nonatlas_texture->setTextureId(texture); |
587 | m_nonatlas_texture->setOwnsTexture(true); |
588 | m_nonatlas_texture->setHasAlphaChannel(m_has_alpha); |
589 | m_nonatlas_texture->setTextureSize(r.size()); |
590 | |
591 | // cleanup: unbind our atlas from the fbo, rebind the old default and delete the fbo. |
592 | f->glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture: 0, level: 0); |
593 | f->glBindFramebuffer(GL_FRAMEBUFFER, framebuffer: (GLuint) currentFbo); |
594 | f->glDeleteFramebuffers(n: 1, framebuffers: &fbo); |
595 | } |
596 | |
597 | m_nonatlas_texture->setMipmapFiltering(mipmapFiltering()); |
598 | m_nonatlas_texture->setFiltering(filtering()); |
599 | return m_nonatlas_texture; |
600 | } |
601 | |
602 | } |
603 | |
604 | QT_END_NAMESPACE |
605 | |
606 | #include "moc_qsgopenglatlastexture_p.cpp" |
607 | |