From a49bbf450881581e27696405ebaefef63f7bde7a Mon Sep 17 00:00:00 2001
From: vaxerski <43317083+vaxerski@users.noreply.github.com>
Date: Tue, 5 Apr 2022 20:49:15 +0200
Subject: =?UTF-8?q?fadeout=20done=20=F0=9F=8E=89?=
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---
 src/render/Framebuffer.cpp | 62 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 src/render/Framebuffer.cpp

(limited to 'src/render/Framebuffer.cpp')

diff --git a/src/render/Framebuffer.cpp b/src/render/Framebuffer.cpp
new file mode 100644
index 00000000..8ab03776
--- /dev/null
+++ b/src/render/Framebuffer.cpp
@@ -0,0 +1,62 @@
+#include "Framebuffer.hpp"
+#include "OpenGL.hpp"
+
+bool CFramebuffer::alloc(int w, int h) {
+     bool firstAlloc = false;
+    if (m_iFb == (uint32_t)-1)
+    {
+        firstAlloc = true;
+        glGenFramebuffers(1, &m_iFb);
+    }
+
+    if (m_cTex.m_iTexID == 0)
+    {
+        firstAlloc = true;
+        glGenTextures(1, &m_cTex.m_iTexID);
+        glBindTexture(GL_TEXTURE_2D, m_cTex.m_iTexID);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    }
+
+    if (firstAlloc)
+    {
+        glBindTexture(GL_TEXTURE_2D, m_cTex.m_iTexID);
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
+
+        glBindFramebuffer(GL_FRAMEBUFFER, m_iFb);
+        glBindTexture(GL_TEXTURE_2D, m_cTex.m_iTexID);
+        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_cTex.m_iTexID, 0);
+
+        auto status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+        RASSERT((status == GL_FRAMEBUFFER_COMPLETE), "Framebuffer incomplete, couldn't create! (FB status: %i)", status);
+
+        Debug::log(LOG, "Framebuffer created, status %i", status);
+    }
+
+    glBindTexture(GL_TEXTURE_2D, 0);
+    glBindFramebuffer(GL_FRAMEBUFFER, g_pHyprOpenGL->m_iCurrentOutputFb);
+
+    m_Size = Vector2D(w, h);
+
+    return true;
+}
+
+void CFramebuffer::bind() {
+    glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_iFb);
+    glViewport(0, 0, g_pHyprOpenGL->m_RenderData.pMonitor->vecSize.x, g_pHyprOpenGL->m_RenderData.pMonitor->vecSize.y);
+}
+
+void CFramebuffer::release() {
+    if (m_iFb != (uint32_t)-1 && m_iFb) {
+        glDeleteFramebuffers(1, &m_iFb);
+    }
+
+    if (m_cTex.m_iTexID) {
+        glDeleteTextures(1, &m_cTex.m_iTexID);
+    }
+
+    m_cTex.m_iTexID = 0;
+    m_iFb = -1;
+}
-- 
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