bool GeometryRenderer::updateBuffers(Geometry *g)
{
if (!g) {
vbo.destroy();
#if QT_VAO
vao.destroy();
#endif
return true;
}
if (!try_vbo)
return false;
#if QT_VAO
if (try_vao) {
qDebug("updating vao...");
if (!vao.isCreated()) {
if (!vao.create()) {
try_vao = false;
qDebug("VAO is not supported");
}
}
}
QOpenGLVertexArrayObject::Binder vao_bind(&vao);
Q_UNUSED(vao_bind);
#endif
if (!vbo.isCreated()) {
if (!vbo.create()) {
try_vbo = false; // not supported by OpenGL
try_vao = false; // also disable VAO. destroy?
qWarning("VBO is not supported");
return false;
}
}
qDebug("updating vbo...");
vbo.bind(); //check here
vbo.allocate(g->vertexData(), g->vertexCount()*g->stride());
#if QT_VAO
if (try_vao) {
for (int an = 0; an < g->attributes().size(); ++an) {
// FIXME: assume bind order is 0,1,2...
const Attribute& a = g->attributes().at(an);
program->setAttributeBuffer(an, a.type(), a.offset(), a.tupleSize(), g->stride());
program->enableAttributeArray(an); //TODO: in setActiveShader
}
}
#endif
vbo.release();
return true;
}
void OpenGLVideoPrivate::bindAttributes(VideoShader* shader, const QRectF &t, const QRectF &r)
{
const bool tex_rect = shader->textureTarget() == GL_TEXTURE_RECTANGLE;
// also check size change for normalizedROI computation if roi is not normalized
const bool roi_changed = valiad_tex_width != material->validTextureWidth() || roi != r || video_size != material->frameSize();
const int tc = shader->textureLocationCount();
if (roi_changed) {
roi = r;
valiad_tex_width = material->validTextureWidth();
video_size = material->frameSize();
}
if (tex_target != shader->textureTarget()) {
tex_target = shader->textureTarget();
update_geo = true;
}
QRectF& target_rect = rect;
if (target.isValid()) {
if (roi_changed || target != t) {
target = t;
update_geo = true;
}
} else {
if (roi_changed) {
update_geo = true;
}
}
if (!update_geo)
goto end;
//qDebug("updating geometry...");
geometry.setRect(target_rect, material->mapToTexture(0, roi));
if (tex_rect) {
geometry.setTextureCount(tc);
for (int i = 1; i < tc; ++i) {
// tc can > planes, but that will compute chroma plane
geometry.setTextureRect(material->mapToTexture(i, roi), i);
}
}
update_geo = false;
if (!try_vbo)
goto end;
{ //VAO scope BEGIN
#if QT_VAO
if (try_vao) {
//qDebug("updating vao...");
if (!vao.isCreated()) {
if (!vao.create()) {
try_vao = false;
qDebug("VAO is not supported");
}
}
}
QOpenGLVertexArrayObject::Binder vao_bind(&vao);
Q_UNUSED(vao_bind);
#endif
if (!vbo.isCreated()) {
if (!vbo.create()) {
try_vbo = false; // not supported by OpenGL
try_vao = false; // also disable VAO. destroy?
qWarning("VBO is not supported");
goto end;
}
}
//qDebug("updating vbo...");
vbo.bind(); //check here
vbo.allocate(geometry.data(), geometry.size());
#if QT_VAO
if (try_vao) {
shader->program()->setAttributeBuffer(0, GL_FLOAT, 0, geometry.tupleSize(), geometry.stride());
shader->program()->setAttributeBuffer(1, GL_FLOAT, geometry.tupleSize()*sizeof(float), geometry.tupleSize(), geometry.stride());
if (tex_rect) {
for (int i = 1; i < tc; ++i) {
shader->program()->setAttributeBuffer(i + 1, GL_FLOAT, i*geometry.textureSize() + geometry.tupleSize()*sizeof(float), geometry.tupleSize(), geometry.stride());
}
}
char const *const *attr = shader->attributeNames();
for (int i = 0; attr[i]; ++i) {
shader->program()->enableAttributeArray(i); //TODO: in setActiveShader
}
}
#endif
vbo.release();
} //VAO scope END
end:
#if QT_VAO
if (try_vao && vao.isCreated()) {
vao.bind();
return;
}
#endif
if (try_vbo && vbo.isCreated()) {
vbo.bind();
shader->program()->setAttributeBuffer(0, GL_FLOAT, 0, geometry.tupleSize(), geometry.stride());
shader->program()->setAttributeBuffer(1, GL_FLOAT, geometry.tupleSize()*sizeof(float), geometry.tupleSize(), geometry.stride());
if (tex_rect) {
for (int i = 1; i < tc; ++i) {
shader->program()->setAttributeBuffer(i + 1, GL_FLOAT, i*geometry.textureSize() + geometry.tupleSize()*sizeof(float), geometry.tupleSize(), geometry.stride());
}
}
} else {
shader->program()->setAttributeArray(0, GL_FLOAT, geometry.data(0), geometry.tupleSize(), geometry.stride());
shader->program()->setAttributeArray(1, GL_FLOAT, geometry.data(1), geometry.tupleSize(), geometry.stride());
if (tex_rect) {
for (int i = 1; i < tc; ++i) {
shader->program()->setAttributeArray(i + 1, GL_FLOAT, geometry.data(1), i*geometry.textureSize() + geometry.tupleSize(), geometry.stride());
}
}
}
char const *const *attr = shader->attributeNames();
for (int i = 0; attr[i]; ++i) {
shader->program()->enableAttributeArray(i); //TODO: in setActiveShader
}
}
bool GeometryRenderer::updateBuffers(Geometry *geo)
{
g = geo;
if (!g) {
vbo.destroy();
#if QT_VAO
vao.destroy();
#endif
ibo.destroy();
return true;
}
if (try_ibo && g->indexCount() > 0) {
if (!ibo.isCreated()) {
if (!ibo.create()) {
try_ibo = false;
qDebug("IBO is not supported");
}
}
if (ibo.isCreated()) {
ibo.bind();
ibo.allocate(g->indexData(), g->indexDataSize());
ibo.release();
}
}
if (!try_vbo)
return false;
#if QT_VAO
if (try_vao) {
qDebug("updating vao...");
if (!vao.isCreated()) {
if (!vao.create()) {
try_vao = false;
qDebug("VAO is not supported");
}
}
}
QOpenGLVertexArrayObject::Binder vao_bind(&vao);
Q_UNUSED(vao_bind);
#endif
if (!vbo.isCreated()) {
if (!vbo.create()) {
try_vbo = false; // not supported by OpenGL
try_vao = false; // also disable VAO. destroy?
qWarning("VBO is not supported");
return false;
}
}
//qDebug("updating vbo...");
vbo.bind(); //check here
vbo.allocate(g->vertexData(), g->vertexCount()*g->stride());
//qDebug("allocate(%p, %d*%d)", g->vertexData(), g->vertexCount(), g->stride());
#if QT_VAO
if (try_vao) {
for (int an = 0; an < g->attributes().size(); ++an) {
// FIXME: assume bind order is 0,1,2...
const Attribute& a = g->attributes().at(an);
//DYGL(glVertexAttribPointer(an, a.tupleSize(), a.type(), a.normalize(), g->stride(), reinterpret_cast<const void *>(qptrdiff(a.offset()))));
/// FIXME: why qopengl function crash?
program->enableAttributeArray(an); //TODO: in setActiveShader
program->setAttributeBuffer(an, a.type(), a.offset(), a.tupleSize(), g->stride());
//DYGL(glEnableVertexAttribArray(an));
}
}
#endif
vbo.release();
return true;
}
