From 3bf7c5aea1d20cc6a0fc95f920111548e7863af9 Mon Sep 17 00:00:00 2001
From: Felix Dick <felix.dick@web.de>
Date: Mon, 10 Oct 2022 01:35:42 +0200
Subject: [PATCH] Change matrixProjection function stop use matrixFlip180
 everywhere.

---
 src/helpers/MiscFunctions.cpp | 10 +++++-----
 src/render/OpenGL.cpp         |  4 ----
 src/render/OpenGL.hpp         |  5 -----
 3 files changed, 5 insertions(+), 14 deletions(-)

diff --git a/src/helpers/MiscFunctions.cpp b/src/helpers/MiscFunctions.cpp
index 362e0675..6acd8b63 100644
--- a/src/helpers/MiscFunctions.cpp
+++ b/src/helpers/MiscFunctions.cpp
@@ -178,7 +178,7 @@ bool isNumber(const std::string& str, bool allowfloat) {
     std::string copy = str;
     if (*copy.begin() == '-')
         copy = copy.substr(1);
-    
+
     if (copy.empty())
         return false;
 
@@ -331,7 +331,7 @@ void logSystemInfo() {
     Debug::log(LOG, "Node name: %s", unameInfo.nodename);
     Debug::log(LOG, "Release: %s", unameInfo.release);
     Debug::log(LOG, "Version: %s", unameInfo.version);
-    
+
     Debug::log(NONE, "\n");
 
     const std::string GPUINFO = execAndGet("lspci -vnn | grep VGA");
@@ -357,8 +357,8 @@ void matrixProjection(float mat[9], int w, int h, wl_output_transform tr) {
     // Rotation + reflection
     mat[0] = x * t[0];
     mat[1] = x * t[1];
-    mat[3] = y * -t[3];
-    mat[4] = y * -t[4];
+    mat[3] = y * t[3];
+    mat[4] = y * t[4];
 
     // Translation
     mat[2] = -copysign(1.0f, mat[0] + mat[1]);
@@ -401,4 +401,4 @@ int64_t getPPIDof(int64_t pid) {
     } catch (std::exception& e) {
         return 0;
     }
-}
\ No newline at end of file
+}
diff --git a/src/render/OpenGL.cpp b/src/render/OpenGL.cpp
index 77bf7d97..8a51a83a 100644
--- a/src/render/OpenGL.cpp
+++ b/src/render/OpenGL.cpp
@@ -323,7 +323,6 @@ void CHyprOpenGLImpl::renderRectWithDamage(wlr_box* box, const CColor& col, pixm
 
     float glMatrix[9];
     wlr_matrix_multiply(glMatrix, m_RenderData.projection, matrix);
-    wlr_matrix_multiply(glMatrix, matrixFlip180, glMatrix);
 
     glEnable(GL_BLEND);
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@@ -412,7 +411,6 @@ void CHyprOpenGLImpl::renderTextureInternalWithDamage(const CTexture& tex, wlr_b
 
     float glMatrix[9];
     wlr_matrix_multiply(glMatrix, m_RenderData.projection, matrix);
-    wlr_matrix_multiply(glMatrix, matrixFlip180, glMatrix);
 
     CShader* shader = nullptr;
 
@@ -840,7 +838,6 @@ void CHyprOpenGLImpl::renderBorder(wlr_box* box, const CColor& col, int round) {
 
     float glMatrix[9];
     wlr_matrix_multiply(glMatrix, m_RenderData.projection, matrix);
-    wlr_matrix_multiply(glMatrix, matrixFlip180, glMatrix);
 
     glEnable(GL_BLEND);
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@@ -1096,7 +1093,6 @@ void CHyprOpenGLImpl::renderRoundedShadow(wlr_box* box, int round, int range, fl
 
     float glMatrix[9];
     wlr_matrix_multiply(glMatrix, m_RenderData.projection, matrix);
-    wlr_matrix_multiply(glMatrix, matrixFlip180, glMatrix);
 
     glEnable(GL_BLEND);
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
diff --git a/src/render/OpenGL.hpp b/src/render/OpenGL.hpp
index 33ebb964..b62732f6 100644
--- a/src/render/OpenGL.hpp
+++ b/src/render/OpenGL.hpp
@@ -12,11 +12,6 @@
 #include "Texture.hpp"
 #include "Framebuffer.hpp"
 
-inline const float matrixFlip180[] = {
-	1.0f, 0.0f, 0.0f,
-	0.0f, -1.0f, 0.0f,
-	0.0f, 0.0f, 1.0f,
-};
 inline const float fullVerts[] = {
     1, 0,  // top right
     0, 0,  // top left