// If copyBack is true, bind will copy the contents of the render
// FBO to the texture (which is not bound to the texture, as it's
// a multisample FBO).
GLuint QGLPixmapData::bind(bool copyBack) const
{
if (m_renderFbo && copyBack) {
copyBackFromRenderFbo(true);
} else {
ensureCreated();
}
GLuint id = m_texture.id;
glBindTexture(GL_TEXTURE_2D, id);
if (m_hasFillColor) {
if (!useFramebufferObjects()) {
m_source = QImage(w, h, QImage::Format_ARGB32_Premultiplied);
m_source.fill(PREMUL(m_fillColor.rgba()));
}
m_hasFillColor = false;
GLenum format = qt_gl_preferredTextureFormat();
QImage tx(w, h, QImage::Format_ARGB32_Premultiplied);
tx.fill(qt_gl_convertToGLFormat(m_fillColor.rgba(), format));
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, format, GL_UNSIGNED_BYTE, tx.bits());
}
return id;
}
void QGLPixmapData::ensureCreated() const
{
if (!m_dirty)
return;
m_dirty = false;
QGLShareContextScope ctx(qt_gl_share_context());
m_ctx = ctx;
const GLenum internal_format = m_hasAlpha ? GL_RGBA : GL_RGB;
#ifdef QT_OPENGL_ES_2
const GLenum external_format = internal_format;
#else
const GLenum external_format = qt_gl_preferredTextureFormat();
#endif
const GLenum target = GL_TEXTURE_2D;
if (!m_texture.id) {
glGenTextures(1, &m_texture.id);
glBindTexture(target, m_texture.id);
glTexImage2D(target, 0, internal_format, w, h, 0, external_format, GL_UNSIGNED_BYTE, 0);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
}
if (!m_source.isNull()) {
if (external_format == GL_RGB) {
const QImage tx = m_source.convertToFormat(QImage::Format_RGB888).mirrored(false, true);
glBindTexture(target, m_texture.id);
glTexSubImage2D(target, 0, 0, 0, w, h, external_format,
GL_UNSIGNED_BYTE, tx.bits());
} else {
const QImage tx = ctx->d_func()->convertToGLFormat(m_source, true, external_format);
glBindTexture(target, m_texture.id);
glTexSubImage2D(target, 0, 0, 0, w, h, external_format,
GL_UNSIGNED_BYTE, tx.bits());
}
if (useFramebufferObjects())
m_source = QImage();
}
m_texture.options &= ~QGLContext::MemoryManagedBindOption;
}
GLuint QGLPixmapData::bind(bool copyBack) const
{
ensureCreated();
GLuint id = m_texture.id;
glBindTexture(GL_TEXTURE_2D, id);
if (m_hasFillColor) {
m_source = QVolatileImage(w, h, QImage::Format_ARGB32_Premultiplied);
m_source.fill(PREMUL(m_fillColor.rgba()));
m_hasFillColor = false;
GLenum format = qt_gl_preferredTextureFormat();
QImage tx(w, h, QImage::Format_ARGB32_Premultiplied);
tx.fill(qt_gl_convertToGLFormat(m_fillColor.rgba(), format));
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, format, GL_UNSIGNED_BYTE, tx.constBits());
}
return id;
}
void QGLPixmapData::ensureCreated() const
{
if (!m_dirty)
return;
m_dirty = false;
if (nativeImageHandleProvider && !nativeImageHandle)
const_cast<QGLPixmapData *>(this)->createFromNativeImageHandleProvider();
QGLShareContextScope ctx(qt_gl_share_widget()->context());
m_ctx = ctx;
const GLenum internal_format = m_hasAlpha ? GL_RGBA : GL_RGB;
#ifdef QT_OPENGL_ES_2
const GLenum external_format = internal_format;
#else
const GLenum external_format = qt_gl_preferredTextureFormat();
#endif
const GLenum target = GL_TEXTURE_2D;
GLenum type = GL_UNSIGNED_BYTE;
// Avoid conversion when pixmap is created from CFbsBitmap of EColor64K.
if (!m_source.isNull() && m_source.format() == QImage::Format_RGB16)
type = GL_UNSIGNED_SHORT_5_6_5;
m_texture.options &= ~QGLContext::MemoryManagedBindOption;
if (!m_texture.id) {
m_texture.id = QGLTexturePool::instance()->createTextureForPixmap(
target,
0, internal_format,
w, h,
external_format,
type,
const_cast<QGLPixmapData*>(this));
if (!m_texture.id) {
failedToAlloc = true;
return;
}
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
inTexturePool = true;
} else if (inTexturePool) {
glBindTexture(target, m_texture.id);
QGLTexturePool::instance()->useTexture(const_cast<QGLPixmapData*>(this));
}
if (!m_source.isNull() && m_texture.id) {
if (external_format == GL_RGB) {
m_source.beginDataAccess();
QImage tx;
if (type == GL_UNSIGNED_BYTE)
tx = m_source.imageRef().convertToFormat(QImage::Format_RGB888).mirrored(false, true);
else if (type == GL_UNSIGNED_SHORT_5_6_5)
tx = m_source.imageRef().mirrored(false, true);
m_source.endDataAccess(true);
glBindTexture(target, m_texture.id);
if (!tx.isNull())
glTexSubImage2D(target, 0, 0, 0, w, h, external_format,
type, tx.constBits());
else
qWarning("QGLPixmapData: Failed to create GL_RGB image of size %dx%d", w, h);
} else {
// do byte swizzling ARGB -> RGBA
m_source.beginDataAccess();
const QImage tx = ctx->d_func()->convertToGLFormat(m_source.imageRef(), true, external_format);
m_source.endDataAccess(true);
glBindTexture(target, m_texture.id);
if (!tx.isNull())
glTexSubImage2D(target, 0, 0, 0, w, h, external_format,
type, tx.constBits());
else
qWarning("QGLPixmapData: Failed to create GL_RGBA image of size %dx%d", w, h);
}
if (useFramebufferObjects())
m_source = QVolatileImage();
}
}
