bool render()
{
glm::vec2 WindowSize(this->getWindowSize());
{
glm::mat4 ProjectionA = glm::scale(glm::perspective(glm::pi<float>() * 0.25f, float(FRAMEBUFFER_SIZE.x) / FRAMEBUFFER_SIZE.y, 0.1f, 100.0f), glm::vec3(1, -1, 1));
*reinterpret_cast<glm::mat4*>(this->UniformPointer + 0) = ProjectionA * this->view() * glm::mat4(1);
glm::mat4 ProjectionB = glm::perspective(glm::pi<float>() * 0.25f, WindowSize.x / WindowSize.y, 0.1f, 100.0f);
*reinterpret_cast<glm::mat4*>(this->UniformPointer + this->UniformBlockSize) = ProjectionB * this->view() * glm::scale(glm::mat4(1), glm::vec3(2));
}
// Step 1, render the scene in a multisampled framebuffer
glBindProgramPipeline(PipelineName);
renderFBO();
// Step 2: blit
glBlitNamedFramebuffer(FramebufferName[framebuffer::RENDER], FramebufferName[framebuffer::RESOLVE],
0, 0, FRAMEBUFFER_SIZE.x, FRAMEBUFFER_SIZE.y,
0, 0, FRAMEBUFFER_SIZE.x, FRAMEBUFFER_SIZE.y,
GL_COLOR_BUFFER_BIT, GL_NEAREST);
GLenum MaxColorAttachment = GL_COLOR_ATTACHMENT0;
glInvalidateNamedFramebufferData(FramebufferName[framebuffer::RENDER], 1, &MaxColorAttachment);
// Step 3, render the colorbuffer from the multisampled framebuffer
renderFB();
return true;
}
void blitColor(const GLFramebuffer& source, int src_attachment, const GLFramebuffer* destination, int dst_attachment)
{
int destination_id = destination ? destination->id() : 0;
glNamedFramebufferReadBuffer(source.id(), GL_COLOR_ATTACHMENT0 + src_attachment);
if (destination)
glNamedFramebufferDrawBuffer(destination_id, GL_COLOR_ATTACHMENT0 + dst_attachment);
glBlitNamedFramebuffer(source.id(), destination_id, 0, 0, source.width(), source.height(), 0, 0, source.width(), source.height(), GL_COLOR_BUFFER_BIT, GL_NEAREST);
}
void kit::DoubleBuffer::blitFrom(kit::DoubleBuffer::Ptr source)
{
KIT_GL(glBlitNamedFramebuffer(
source->getFrontBuffer()->getHandle(),
this->getBackBuffer()->getHandle(),
0, 0, source->getResolution().x, source->getResolution().y,
0, 0, this->getResolution().x, this->getResolution().y,
GL_COLOR_BUFFER_BIT, GL_LINEAR
));
}
void kit::PixelBuffer::blitFrom(kit::PixelBuffer::Ptr source, bool colorMask, std::vector<std::array<bool, 4>> componentMask, bool depthMask, bool stencilMask)
{
bool clearColorMask = false;
GLbitfield mask = 0;
if (colorMask)
{
mask |= GL_COLOR_BUFFER_BIT;
if (this->m_colorAttachments.size() != source->getNumColorAttachments())
{
KIT_THROW("source: color attachment count mismatch");
return;
}
}
if (depthMask)
{
mask |= GL_DEPTH_BUFFER_BIT;
}
if (stencilMask)
{
mask |= GL_STENCIL_BUFFER_BIT;
}
if (componentMask.size() != 0 && colorMask)
{
if (componentMask.size() != this->m_colorAttachments.size())
{
KIT_ERR("componentMask: color attachment count mismatch");
return;
}
for (int i = 0; i < this->m_colorAttachments.size(); i++)
{
KIT_GL(glColorMaski(i, componentMask[i][0], componentMask[i][1], componentMask[i][2], componentMask[i][3]));
}
clearColorMask = true;
}
KIT_GL(glBlitNamedFramebuffer(source->getHandle(), this->getHandle(), 0, 0, source->getResolution().x, source->getResolution().y, 0, 0, this->getResolution().x, this->getResolution().y, mask, GL_LINEAR));
if (clearColorMask)
{
for (int i = 0; i < this->m_colorAttachments.size(); i++)
{
KIT_GL(glColorMaski(i, true, true, true, true));
}
}
}
void GL45Backend::do_blit(const Batch& batch, size_t paramOffset) {
auto srcframebuffer = batch._framebuffers.get(batch._params[paramOffset]._uint);
Vec4i srcvp;
for (auto i = 0; i < 4; ++i) {
srcvp[i] = batch._params[paramOffset + 1 + i]._int;
}
auto dstframebuffer = batch._framebuffers.get(batch._params[paramOffset + 5]._uint);
Vec4i dstvp;
for (auto i = 0; i < 4; ++i) {
dstvp[i] = batch._params[paramOffset + 6 + i]._int;
}
// Assign dest framebuffer if not bound already
auto destFbo = getFramebufferID(dstframebuffer);
auto srcFbo = getFramebufferID(srcframebuffer);
glBlitNamedFramebuffer(srcFbo, destFbo,
srcvp.x, srcvp.y, srcvp.z, srcvp.w,
dstvp.x, dstvp.y, dstvp.z, dstvp.w,
GL_COLOR_BUFFER_BIT, GL_LINEAR);
(void) CHECK_GL_ERROR();
}
void AbstractFramebuffer::blitImplementationDSA(AbstractFramebuffer& source, AbstractFramebuffer& destination, const Range2Di& sourceRectangle, const Range2Di& destinationRectangle, const FramebufferBlitMask mask, const FramebufferBlitFilter filter) {
glBlitNamedFramebuffer(source._id, destination._id, sourceRectangle.left(), sourceRectangle.bottom(), sourceRectangle.right(), sourceRectangle.top(), destinationRectangle.left(), destinationRectangle.bottom(), destinationRectangle.right(), destinationRectangle.top(), GLbitfield(mask), GLenum(filter));
}
