Resize frame buffer method added

3DEditor/private/Render.cpp

@@ -65,7 +65,7 @@ Render::Render(Vec2F renderResolution) :
 
 Render::~Render() {}
 
-uint4 Render::getRenderBuffer() { return mRenderBuffer.texId(); }
+uint4 Render::getRenderBufferID() { return mRenderBuffer.texId(); }
 
 Vec2F Render::getBufferSize() { return mRenderBuffer.getSize(); }
 
@@ -77,7 +77,7 @@ void Render::render(const Scene& geometry, Vec2F size) {
 		}
 	}
 
-	mRenderBuffer.mClearCol = { 0.0f, 0.0f, 0.0f, 0.f };
+	mRenderBuffer.mClearCol = { 0.0f, 0.0f, 0.0f, 1.f };
 
 	mRenderBuffer.beginDraw();
 	mRenderBuffer.clear();
@@ -108,3 +108,5 @@ void Render::render(const Scene& geometry, Vec2F size) {
 
 	mRenderBuffer.endDraw();
 }
+
+RenderBuffer* Render::getRenderBuffer() { return &mRenderBuffer; }

3DEditor/public/EditorWidget.hpp

@@ -9,14 +9,18 @@ namespace tp {
 		explicit ViewportWidget(Canvas* canvas, Scene* geometry, Vec2F renderResolution) :
 			mRender(renderResolution) {
 
-			mImage = canvas->createImageFromTextId(mRender.getRenderBuffer(), mRender.getBufferSize());
+			mImage = canvas->createImageFromTextId(mRender.getRenderBufferID(), { 0, 0 });
 			mGeometry = geometry;
 			mCanvas = canvas;
 		}
 
 		~ViewportWidget() { mCanvas->deleteImageHandle(mImage); }
 
-		void eventProcess(const Events& events) override { mGeometry->mCamera.rotate(0.01f, 0.0); }
+		void eventProcess(const Events& events) override {
+			mRender.getRenderBuffer()->resize(this->mArea.size);
+			mGeometry->mCamera.rotate(0.01f, 0.0);
+			mGeometry->mCamera.setRatio(this->mArea.w / this->mArea.z);
+		}
 
 		void eventDraw(Canvas& canvas) override {
 			mRender.render(*mGeometry, this->mArea.size);

3DEditor/public/Render.hpp

@@ -13,7 +13,8 @@ namespace tp {
 		~Render();
 
 		void render(const Scene& geometry, Vec2F size);
-		uint4 getRenderBuffer();
+		uint4 getRenderBufferID();
+		RenderBuffer* getRenderBuffer();
 		Vec2F getBufferSize();
 
 	private:

Graphics/private/Canvas.cpp

@@ -125,6 +125,7 @@ void Canvas::drawImage(const RectF& rec, ImageHandle* image, halnf angle, halnf
 #ifdef ENV_OS_ANDROID
 	 return { (ualni) nvglCreateImageFromHandleGLES3(mContext->vg, id, size.x, size.y, 0) };
 #else
+	 //return { (ualni) nvglCreateImageFromHandleGL3(mContext->vg, id, size.x, size.y, 0) };
 	 return { (ualni) nvglCreateImageFromHandleGL3(mContext->vg, id, size.x, size.y, 0) };
 #endif
 }

RasterRender/private/FrameBuffer.cpp

@@ -4,7 +4,10 @@
 
 #include <stdio.h>
 
-void glerr(GLenum type) { printf("GL ERROR\n"); }
+void glerr(GLenum type) {
+	printf("GL ERROR - %i\n", type);
+}
+
 #define AssertGL(x)                         \
 	{                                         \
 		x;                                      \
@@ -15,7 +18,8 @@ void glerr(GLenum type) { printf("GL ERROR\n"); }
 using namespace tp;
 
 RenderBuffer::RenderBuffer(const Vec2F& size) :
-	mSize(size) {
+	mSize(size), mSamples(0)
+{
 
 	mDrawBuffers[0] = { GL_COLOR_ATTACHMENT0 };
 
@@ -47,7 +51,8 @@ RenderBuffer::RenderBuffer(const Vec2F& size) :
 }
 
 RenderBuffer::RenderBuffer(const Vec2F& size, tp::uint1 samples) :
-	mSize(size) {
+	mSize(size), mSamples(samples)
+{
 
 	mDrawBuffers[0] = { GL_COLOR_ATTACHMENT0 };
 
@@ -115,3 +120,40 @@ RenderBuffer::~RenderBuffer() {
 uint4 RenderBuffer::texId() const { return mTextureId; }
 
 const Vec2F& RenderBuffer::getSize() const { return mSize; }
+
+void RenderBuffer::resize(const Vec2F& size) {
+	if (size == mSize) return;
+
+	// Update size
+	mSize = size;
+
+	// Bind framebuffer
+	AssertGL(glBindFramebuffer(GL_FRAMEBUFFER, mFrameBufferID));
+
+	// Resize color texture
+	if (mSamples) {
+		AssertGL(glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, mTextureId));
+		AssertGL(glTexImage2DMultisample(
+			GL_TEXTURE_2D_MULTISAMPLE, mSamples, GL_RGBA, (GLsizei)size.x, (GLsizei)size.y, GL_TRUE
+		));
+		AssertGL(glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, 0));
+	} else {
+		AssertGL(glBindTexture(GL_TEXTURE_2D, mTextureId));
+		AssertGL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)size.x, (GLsizei)size.y, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0));
+		AssertGL(glBindTexture(GL_TEXTURE_2D, 0));
+	}
+
+	// Resize depth renderbuffer
+	if (mSamples) {
+		AssertGL(glBindRenderbuffer(GL_RENDERBUFFER, mDepthBufferID));
+		AssertGL(glRenderbufferStorageMultisample(
+			GL_RENDERBUFFER, mSamples, GLW_CONTEXT_DEPTH_COMPONENT, (GLsizei)size.x, (GLsizei)size.y
+		));
+	} else {
+		AssertGL(glBindRenderbuffer(GL_RENDERBUFFER, mDepthBufferID));
+		AssertGL(glRenderbufferStorage(GL_RENDERBUFFER, GLW_CONTEXT_DEPTH_COMPONENT, (GLsizei)size.x, (GLsizei)size.y));
+	}
+
+	// Unbind framebuffer
+	AssertGL(glBindFramebuffer(GL_FRAMEBUFFER, 0));
+}

RasterRender/public/FrameBuffer.hpp

@@ -7,7 +7,7 @@
 namespace tp {
 	class RenderBuffer {
 	public:
-		RenderBuffer(const Vec2F& size);
+		explicit RenderBuffer(const Vec2F& size);
 		RenderBuffer(const Vec2F& size, tp::uint1 samples);
 		~RenderBuffer();
 
@@ -16,10 +16,12 @@ namespace tp {
 		void clear();
 		void endDraw();
 
-		uint4 texId() const;
+		[[nodiscard]] uint4 texId() const;
-		uint4 buffId() const;
+		[[nodiscard]] uint4 buffId() const;
 
-		const Vec2F& getSize() const;
+		void resize(const Vec2F& size);
+
+		[[nodiscard]] const Vec2F& getSize() const;
 
 	public:
 		RGBA mClearCol = 0.f;
@@ -28,7 +30,8 @@ namespace tp {
 		uint4 mFrameBufferID = 0; // regroups 0, 1, or more textures, and 0 or 1 depth buffer.
 		uint4 mTextureId = 0;     // texture we're going to render to ( colour attachement #0 )
 		uint4 mDepthBufferID = 0;
-		uint4 mDrawBuffers[1];
+		uint4 mDrawBuffers[1] = { 0 };
 		Vec2F mSize;
+		ualni mSamples = 0;
 	};
 };