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Disabling the framebuffer blit of output rendering

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Blit of framebuffer is incompatible with the new features of Display View to adjust whitebalance and geometry of rendered frame on output windows.
This commit is contained in:
Bruno Herbelin
2023-02-28 00:23:54 +01:00
parent f9e99e2a33
commit 93f433f388
5 changed files with 5 additions and 74 deletions
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64
src/RenderingManager.cpp
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@@ -1096,69 +1096,11 @@ bool RenderingWindow::draw(FrameBuffer *fb)
Rendering::manager().pushAttrib(window_attributes_);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// blit framebuffer
if (Settings::application.render.blit) {
if ( textureid_ != fb->texture()) {
textureid_ = fb->texture();
// create a new fbo in this opengl context
if (fbo_ != 0)
glDeleteFramebuffers(1, &fbo_);
glGenFramebuffers(1, &fbo_);
glBindFramebuffer(GL_FRAMEBUFFER, fbo_);
// attach the 2D texture to local FBO
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textureid_, 0);
#ifndef NDEBUG
Log::Info("Blit to output window enabled.");
#endif
}
// if not disabled
if (!Settings::application.render.disabled) {
// calculate scaling factor of frame buffer inside window
int rx, ry, rw, rh;
float renderingAspectRatio = fb->aspectRatio();
if (Settings::application.windows[index_].scaled) {
rx = 0;
ry = 0;
rw = window_attributes_.viewport.x;
rh = window_attributes_.viewport.y;
}
else {
if (aspectRatio() < renderingAspectRatio) {
int nh = (int)( float(window_attributes_.viewport.x) / renderingAspectRatio);
rx = 0;
ry = (window_attributes_.viewport.y - nh) / 2;
rw = window_attributes_.viewport.x;
rh = (window_attributes_.viewport.y + nh) / 2;
} else {
int nw = (int)( float(window_attributes_.viewport.y) * renderingAspectRatio );
rx = (window_attributes_.viewport.x - nw) / 2;
ry = 0;
rw = (window_attributes_.viewport.x + nw) / 2;
rh = window_attributes_.viewport.y;
}
}
// select fbo texture read target
glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo_);
// select screen target
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
// blit operation from fbo (containing texture) to screen
glBlitFramebuffer(0, fb->height(), fb->width(), 0, rx, ry, rw, rh, GL_COLOR_BUFFER_BIT, GL_LINEAR);
}
}
// make sure previous shader in another glcontext is disabled
ShadingProgram::enduse();
// draw geometry
else if (!Settings::application.render.disabled)
if (!Settings::application.render.disabled)
{
// VAO is not shared between multiple contexts of different windows
// so we have to create a new VAO for rendering the surface in this window