1/* Copyright Statement:
2 *
3 * (C) 2021-2024  Cubios Inc. All rights reserved.
4 */
5 
6#include "OffscreenRenderTarget.h"
7#include "SceneObject.h"
8 
9namespace Cubios 
10{
11namespace Gfx
12{
13int16_t OffscreenRenderTarget::rtc = 0;
14 
15OffscreenRenderTarget::OffscreenRenderTarget(u32_t w, u32_t h, Cubios::GFX_PixelFormat_t f):inBegin(false),width(w),height(h),format(f)
16{
17    this->rtID = this->getNextID();
18    this->Color.Set(255,0,255);
19    this->nullScreen = new Cubios::Screen(0);
20}
21 
22OffscreenRenderTarget::~OffscreenRenderTarget() 
23{
24    if(this->nullScreen) 
25    {
26        delete this->nullScreen;
27        Cubios::GFX_removeBakedImage(this->rtID);
28    }
29}
30 
31Cubios::SceneObject* OffscreenRenderTarget::Add(Cubios::SceneObject* obj)
32{
33    if(!this->inBegin)
34    {
35        LOG_w("OffscreenRenderTarget:Scene objects can only be added within Begin/End block!\n");
36        obj->Parent = nullptr;
37        return obj;
38    } 
39    if(!obj->Visible) return obj;
40 
41    obj->Parent = this->nullScreen;
42    obj->InBegin = this->inBegin;
43 
44    obj->ScreenAngle = 0;
45 
46    this->objects.push_back(obj);
47 
48    return obj;
49}
50 
51SceneObject* OffscreenRenderTarget::AddCopy(SceneObject* obj)
52{
53    SceneObject* object = this->Add(obj);
54 
55    if(object!=nullptr) 
56        {
57            this->copies.push_back(object);
58        }
59 
60    return object;
61}
62 
63void OffscreenRenderTarget::Begin(bool overwrite)
64{
65    this->inBegin = true;
66    this->objects.clear();
67 
68    Cubios::GFX_bakeImage(this->rtID, this->width, this->height, this->format, (u32_t)overwrite);
69}
70 
71void OffscreenRenderTarget::End()
72{
73    this->inBegin = false;
74    this->present();
75 
76    for(size_t i=0;i<this->copies.size();i++)
77    {
78        delete this->copies[i];
79    }
80    this->copies.clear();   
81}
82 
83void OffscreenRenderTarget::present()
84{
85    this->RenderLayer(renderLayerOrder_t::BeforeQueue); 
86 
87    for(auto obj: objects) 
88    {
89        obj->Render();
90        obj->InBegin = this->inBegin;
91    }
92 
93    this->RenderLayer(renderLayerOrder_t::AfterQueue); 
94 
95    Cubios::GFX_render();
96}
97 
98void OffscreenRenderTarget::Render()
99{ 
100    Math::Vec2 pos = this->ScreenPosition();
101    Cubios::GFX_drawBakedImage(pos.X, pos.Y, Color.A(), Color.Value(), Transform.ScaleX, Transform.ScaleY, Transform.SafeRotation()+ScreenAngle, Transform.Mirroring, this->rtID);
102}
103}
104}
105