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Framebuffer cleanup.

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This commit is contained in:
Leonardo Zide 2021-01-09 17:57:24 -08:00
parent 31ce044a65
commit a0867c9b80
3 changed files with 8 additions and 211 deletions
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161
common/lc_context.cpp
View file

@ -52,8 +52,6 @@ lcContext::lcContext()
mTextureEnabled = false;
#endif
mFramebufferObject = 0;
mColor = lcVector4(0.0f, 0.0f, 0.0f, 0.0f);
mWorldMatrix = lcMatrix44Identity();
mViewMatrix = lcMatrix44Identity();
@ -645,165 +643,6 @@ void lcContext::SetInterfaceColor(lcInterfaceColor InterfaceColor)
SetColor(gInterfaceColors[InterfaceColor]);
}
void lcContext::ClearFramebuffer()
{
if (!mFramebufferObject)
return;
glBindFramebuffer(GL_FRAMEBUFFER, mContext->defaultFramebufferObject());
mFramebufferObject = 0;
}
lcFramebuffer lcContext::CreateFramebuffer(int Width, int Height, bool Depth, bool Multisample)
{
lcFramebuffer Framebuffer(Width, Height);
if (gSupportsFramebufferObject)
{
int Samples = (Multisample && gSupportsTexImage2DMultisample && QSurfaceFormat::defaultFormat().samples() > 1) ? QSurfaceFormat::defaultFormat().samples() : 1;
glGenFramebuffers(1, &Framebuffer.mObject);
glBindFramebuffer(GL_FRAMEBUFFER, Framebuffer.mObject);
glGenTextures(1, &Framebuffer.mColorTexture);
if (Depth)
glGenRenderbuffers(1, &Framebuffer.mDepthRenderbuffer);
if (Samples == 1)
{
BindTexture2D(Framebuffer.mColorTexture);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, Width, Height, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
BindTexture2D(0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, Framebuffer.mColorTexture, 0);
if (Depth)
{
glBindRenderbuffer(GL_RENDERBUFFER, Framebuffer.mDepthRenderbuffer);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, Width, Height);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, Framebuffer.mDepthRenderbuffer);
}
}
else
{
QOpenGLFunctions_3_2_Core* Funcs = mContext->versionFunctions<QOpenGLFunctions_3_2_Core>();
BindTexture2DMS(Framebuffer.mColorTexture);
Funcs->glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, Samples, GL_RGBA, Width, Height, GL_TRUE);
BindTexture2DMS(0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D_MULTISAMPLE, Framebuffer.mColorTexture, 0);
if (Depth)
{
glBindRenderbuffer(GL_RENDERBUFFER, Framebuffer.mDepthRenderbuffer);
Funcs->glRenderbufferStorageMultisample(GL_RENDERBUFFER, Samples, GL_DEPTH_COMPONENT24, Width, Height);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, Framebuffer.mDepthRenderbuffer);
}
}
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
DestroyFramebuffer(Framebuffer);
glBindFramebuffer(GL_FRAMEBUFFER, mFramebufferObject);
}
return Framebuffer;
}
void lcContext::DestroyFramebuffer(lcFramebuffer& Framebuffer)
{
if (gSupportsFramebufferObject)
{
glDeleteFramebuffers(1, &Framebuffer.mObject);
glDeleteTextures(1, &Framebuffer.mColorTexture);
glDeleteRenderbuffers(1, &Framebuffer.mDepthRenderbuffer);
}
Framebuffer.mObject = 0;
Framebuffer.mColorTexture = 0;
Framebuffer.mDepthRenderbuffer = 0;
Framebuffer.mWidth = 0;
Framebuffer.mHeight = 0;
}
void lcContext::BindFramebuffer(GLuint FramebufferObject)
{
if (FramebufferObject == mFramebufferObject)
return;
glBindFramebuffer(GL_FRAMEBUFFER, FramebufferObject);
mFramebufferObject = FramebufferObject;
}
std::pair<lcFramebuffer, lcFramebuffer> lcContext::CreateRenderFramebuffer(int Width, int Height)
{
if (gSupportsFramebufferObject && gSupportsTexImage2DMultisample && QSurfaceFormat::defaultFormat().samples() > 1)
return std::make_pair(CreateFramebuffer(Width, Height, true, true), CreateFramebuffer(Width, Height, false, false));
else
return std::make_pair(CreateFramebuffer(Width, Height, true, false), lcFramebuffer());
}
void lcContext::DestroyRenderFramebuffer(std::pair<lcFramebuffer, lcFramebuffer>& RenderFramebuffer)
{
DestroyFramebuffer(RenderFramebuffer.first);
DestroyFramebuffer(RenderFramebuffer.second);
}
QImage lcContext::GetRenderFramebufferImage(const std::pair<lcFramebuffer, lcFramebuffer>& RenderFramebuffer)
{
QImage Image(RenderFramebuffer.first.mWidth, RenderFramebuffer.first.mHeight, QImage::Format_ARGB32);
GetRenderFramebufferImage(RenderFramebuffer, Image.bits());
return Image;
}
void lcContext::GetRenderFramebufferImage(const std::pair<lcFramebuffer, lcFramebuffer>& RenderFramebuffer, quint8* Buffer)
{
const int Width = RenderFramebuffer.first.mWidth;
const int Height = RenderFramebuffer.first.mHeight;
const GLuint SavedFramebuffer = mFramebufferObject;
if (RenderFramebuffer.second.IsValid())
{
#ifndef LC_OPENGLES
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, RenderFramebuffer.second.mObject);
glBindFramebuffer(GL_READ_FRAMEBUFFER, RenderFramebuffer.first.mObject);
QOpenGLFunctions_3_2_Core* Funcs = mContext->versionFunctions<QOpenGLFunctions_3_2_Core>();
Funcs->glBlitFramebuffer(0, 0, Width, Height, 0, 0, Width, Height, GL_COLOR_BUFFER_BIT, GL_LINEAR);
BindFramebuffer(RenderFramebuffer.second);
#endif
}
else
BindFramebuffer(RenderFramebuffer.first);
glFinish();
glReadPixels(0, 0, Width, Height, GL_RGBA, GL_UNSIGNED_BYTE, Buffer);
BindFramebuffer(SavedFramebuffer);
for (int y = 0; y < (Height + 1) / 2; y++)
{
quint8* Top = Buffer + ((Height - y - 1) * Width * 4);
quint8* Bottom = Buffer + y * Width * 4;
for (int x = 0; x < Width; x++)
{
QRgb TopColor = qRgba(Top[0], Top[1], Top[2], Top[3]);
QRgb BottomColor = qRgba(Bottom[0], Bottom[1], Bottom[2], Bottom[3]);
*(QRgb*)Top = BottomColor;
*(QRgb*)Bottom = TopColor;
Top += 4;
Bottom += 4;
}
}
}
lcVertexBuffer lcContext::CreateVertexBuffer(int Size, const void* Data)
{
lcVertexBuffer VertexBuffer;

40
common/lc_context.h
View file

@ -76,30 +76,6 @@ struct lcProgram
GLint HighlightParamsLocation;
};
class lcFramebuffer
{
public:
lcFramebuffer()
{
}
lcFramebuffer(int Width, int Height)
: mWidth(Width), mHeight(Height)
{
}
bool IsValid() const
{
return mObject != 0;
}
GLuint mObject = 0;
GLuint mColorTexture = 0;
GLuint mDepthRenderbuffer = 0;
int mWidth = 0;
int mHeight = 0;
};
enum class lcPolygonOffset
{
None,
@ -193,20 +169,6 @@ public:
void SetEdgeColorIndexTinted(int ColorIndex, const lcVector4& Tint);
void SetInterfaceColor(lcInterfaceColor InterfaceColor);
void ClearFramebuffer();
lcFramebuffer CreateFramebuffer(int Width, int Height, bool Depth, bool Multisample);
void DestroyFramebuffer(lcFramebuffer& Framebuffer);
void BindFramebuffer(GLuint FramebufferObject);
void BindFramebuffer(const lcFramebuffer& Framebuffer)
{
BindFramebuffer(Framebuffer.mObject);
}
std::pair<lcFramebuffer, lcFramebuffer> CreateRenderFramebuffer(int Width, int Height);
void DestroyRenderFramebuffer(std::pair<lcFramebuffer, lcFramebuffer>& RenderFramebuffer);
QImage GetRenderFramebufferImage(const std::pair<lcFramebuffer, lcFramebuffer>& RenderFramebuffer);
void GetRenderFramebufferImage(const std::pair<lcFramebuffer, lcFramebuffer>& RenderFramebuffer, quint8* Buffer);
lcVertexBuffer CreateVertexBuffer(int Size, const void* Data);
void DestroyVertexBuffer(lcVertexBuffer& VertexBuffer);
lcIndexBuffer CreateIndexBuffer(int Size, const void* Data);
@ -268,8 +230,6 @@ protected:
bool mViewProjectionMatrixDirty;
bool mHighlightParamsDirty;
GLuint mFramebufferObject;
static std::unique_ptr<QOpenGLContext> mOffscreenContext;
static std::unique_ptr<QOffscreenSurface> mOffscreenSurface;

18
common/lc_model.cpp
View file

@ -1332,21 +1332,20 @@ QImage lcModel::GetPartsListImage(int MaxWidth, lcStep Step) const
std::sort(Images.begin(), Images.end(), ImageCompare);
lcView* View = gMainWindow->GetActiveView();
View->MakeCurrent();
lcContext* Context = View->mContext;
lcView View(lcViewType::PartsList, nullptr);
View.SetOffscreenContext();
View.MakeCurrent();
lcContext* Context = View.mContext;
const int ThumbnailSize = qMin(MaxWidth, 512);
std::pair<lcFramebuffer, lcFramebuffer> RenderFramebuffer = Context->CreateRenderFramebuffer(ThumbnailSize, ThumbnailSize);
View.SetSize(ThumbnailSize, ThumbnailSize);
if (!RenderFramebuffer.first.IsValid())
if (!View.BeginRenderToImage(ThumbnailSize, ThumbnailSize))
{
QMessageBox::warning(gMainWindow, tr("LeoCAD"), tr("Error creating images."));
return QImage();
}
Context->BindFramebuffer(RenderFramebuffer.first);
float OrthoSize = 200.0f;
lcMatrix44 ProjectionMatrix = lcMatrix44Ortho(-OrthoSize, OrthoSize, -OrthoSize, OrthoSize, -5000.0f, 5000.0f);
@ -1405,11 +1404,10 @@ QImage lcModel::GetPartsListImage(int MaxWidth, lcStep Step) const
Scene.Draw(Context);
Image.Thumbnail = Context->GetRenderFramebufferImage(RenderFramebuffer);
Image.Thumbnail = View.GetRenderFramebufferImage().convertToFormat(QImage::Format_ARGB32);
}
Context->ClearFramebuffer();
Context->DestroyRenderFramebuffer(RenderFramebuffer);
View.EndRenderToImage();
Context->ClearResources();
auto CalculateImageBounds = [](lcPartsListImage& Image)