Internal: move to Mat3x3 from hyprutils (#7902)

* Meson: require hyprutils >= 0.2.3

* flake.lock: update hyprutils

---------

Co-authored-by: Mihai Fufezan <[email protected]>

6 files changed, 5 insertions, 158 deletions

diff --git a/src/helpers/MiscFunctions.cpp b/src/helpers/MiscFunctions.cpp
index b9970399..20c79a2b 100644
--- a/src/helpers/MiscFunctions.cpp
+++ b/src/helpers/MiscFunctions.cpp
@@ -628,27 +628,6 @@ void logSystemInfo() {
     Debug::log(NONE, "{}", execAndGet("cat /etc/os-release"));
 }
 
-void matrixProjection(float mat[9], int w, int h, wl_output_transform tr) {
-    memset(mat, 0, sizeof(*mat) * 9);
-
-    const float* t = transforms[tr];
-    float        x = 2.0f / w;
-    float        y = 2.0f / h;
-
-    // Rotation + reflection
-    mat[0] = x * t[0];
-    mat[1] = x * t[1];
-    mat[3] = y * t[3];
-    mat[4] = y * t[4];
-
-    // Translation
-    mat[2] = -copysign(1.0f, mat[0] + mat[1]);
-    mat[5] = -copysign(1.0f, mat[3] + mat[4]);
-
-    // Identity
-    mat[8] = 1.0f;
-}
-
 int64_t getPPIDof(int64_t pid) {
 #if defined(KERN_PROC_PID)
     int mib[] = {
diff --git a/src/helpers/MiscFunctions.hpp b/src/helpers/MiscFunctions.hpp
index 8b2ea0d1..f696fc5d 100644
--- a/src/helpers/MiscFunctions.hpp
+++ b/src/helpers/MiscFunctions.hpp
@@ -34,7 +34,6 @@ int64_t                          getPPIDof(int64_t pid);
 int64_t                          configStringToInt(const std::string&);
 Vector2D                         configStringToVector2D(const std::string&);
 std::optional<float>             getPlusMinusKeywordResult(std::string in, float relative);
-void                             matrixProjection(float mat[9], int w, int h, wl_output_transform tr);
 double                           normalizeAngleRad(double ang);
 std::vector<SCallstackFrameInfo> getBacktrace();
 void                             throwError(const std::string& err);
diff --git a/src/helpers/Monitor.cpp b/src/helpers/Monitor.cpp
index 223a3f94..a2d4c504 100644
--- a/src/helpers/Monitor.cpp
+++ b/src/helpers/Monitor.cpp
@@ -772,12 +772,9 @@ Vector2D CMonitor::middle() {
 }
 
 void CMonitor::updateMatrix() {
-    matrixIdentity(projMatrix.data());
-    if (transform != WL_OUTPUT_TRANSFORM_NORMAL) {
-        matrixTranslate(projMatrix.data(), vecPixelSize.x / 2.0, vecPixelSize.y / 2.0);
-        matrixTransform(projMatrix.data(), wlTransformToHyprutils(transform));
-        matrixTranslate(projMatrix.data(), -vecTransformedSize.x / 2.0, -vecTransformedSize.y / 2.0);
-    }
+    projMatrix = Mat3x3::identity();
+    if (transform != WL_OUTPUT_TRANSFORM_NORMAL)
+        projMatrix.translate(vecPixelSize / 2.0).transform(wlTransformToHyprutils(transform)).translate(-vecTransformedSize / 2.0);
 }
 
 WORKSPACEID CMonitor::activeWorkspaceID() {
diff --git a/src/helpers/Monitor.hpp b/src/helpers/Monitor.hpp
index 203cac90..97d9f8ab 100644
--- a/src/helpers/Monitor.hpp
+++ b/src/helpers/Monitor.hpp
@@ -96,7 +96,7 @@ class CMonitor {
     bool                        scheduledRecalc = false;
     wl_output_transform         transform       = WL_OUTPUT_TRANSFORM_NORMAL;
     float                       xwaylandScale   = 1.f;
-    std::array<float, 9>        projMatrix      = {0};
+    Mat3x3                      projMatrix;
     std::optional<Vector2D>     forceSize;
     SP<Aquamarine::SOutputMode> currentMode;
     SP<Aquamarine::CSwapchain>  cursorSwapchain;
diff --git a/src/helpers/math/Math.cpp b/src/helpers/math/Math.cpp
index fccfd636..d111690e 100644
--- a/src/helpers/math/Math.cpp
+++ b/src/helpers/math/Math.cpp
@@ -1,6 +1,4 @@
 #include "Math.hpp"
-#include <unordered_map>
-#include <cstring>
 
 Hyprutils::Math::eTransform wlTransformToHyprutils(wl_output_transform t) {
     switch (t) {
@@ -17,124 +15,6 @@ Hyprutils::Math::eTransform wlTransformToHyprutils(wl_output_transform t) {
     return Hyprutils::Math::eTransform::HYPRUTILS_TRANSFORM_NORMAL;
 }
 
-void matrixIdentity(float mat[9]) {
-    static const float identity[9] = {
-        1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f,
-    };
-    memcpy(mat, identity, sizeof(identity));
-}
-
-void matrixMultiply(float mat[9], const float a[9], const float b[9]) {
-    float product[9];
-
-    product[0] = a[0] * b[0] + a[1] * b[3] + a[2] * b[6];
-    product[1] = a[0] * b[1] + a[1] * b[4] + a[2] * b[7];
-    product[2] = a[0] * b[2] + a[1] * b[5] + a[2] * b[8];
-
-    product[3] = a[3] * b[0] + a[4] * b[3] + a[5] * b[6];
-    product[4] = a[3] * b[1] + a[4] * b[4] + a[5] * b[7];
-    product[5] = a[3] * b[2] + a[4] * b[5] + a[5] * b[8];
-
-    product[6] = a[6] * b[0] + a[7] * b[3] + a[8] * b[6];
-    product[7] = a[6] * b[1] + a[7] * b[4] + a[8] * b[7];
-    product[8] = a[6] * b[2] + a[7] * b[5] + a[8] * b[8];
-
-    memcpy(mat, product, sizeof(product));
-}
-
-void matrixTranspose(float mat[9], const float a[9]) {
-    float transposition[9] = {
-        a[0], a[3], a[6], a[1], a[4], a[7], a[2], a[5], a[8],
-    };
-    memcpy(mat, transposition, sizeof(transposition));
-}
-
-void matrixTranslate(float mat[9], float x, float y) {
-    float translate[9] = {
-        1.0f, 0.0f, x, 0.0f, 1.0f, y, 0.0f, 0.0f, 1.0f,
-    };
-    matrixMultiply(mat, mat, translate);
-}
-
-void matrixScale(float mat[9], float x, float y) {
-    float scale[9] = {
-        x, 0.0f, 0.0f, 0.0f, y, 0.0f, 0.0f, 0.0f, 1.0f,
-    };
-    matrixMultiply(mat, mat, scale);
-}
-
-void matrixRotate(float mat[9], float rad) {
-    float rotate[9] = {
-        cos(rad), -sin(rad), 0.0f, sin(rad), cos(rad), 0.0f, 0.0f, 0.0f, 1.0f,
-    };
-    matrixMultiply(mat, mat, rotate);
-}
-
-const std::unordered_map<eTransform, std::array<float, 9>>& getTransforms() {
-    static std::unordered_map<eTransform, std::array<float, 9>> transforms = {
-        {HYPRUTILS_TRANSFORM_NORMAL, {1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f}},
-        {HYPRUTILS_TRANSFORM_90, {0.0f, 1.0f, 0.0f, -1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f}},
-        {HYPRUTILS_TRANSFORM_180, {-1.0f, 0.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f}},
-        {HYPRUTILS_TRANSFORM_270, {0.0f, -1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f}},
-        {HYPRUTILS_TRANSFORM_FLIPPED, {-1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f}},
-        {HYPRUTILS_TRANSFORM_FLIPPED_90, {0.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f}},
-        {HYPRUTILS_TRANSFORM_FLIPPED_180, {1.0f, 0.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f}},
-        {HYPRUTILS_TRANSFORM_FLIPPED_270, {0.0f, -1.0f, 0.0f, -1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f}},
-    };
-    return transforms;
-}
-
-void matrixTransform(float mat[9], eTransform transform) {
-    matrixMultiply(mat, mat, getTransforms().at(transform).data());
-}
-
-void matrixProjection(float mat[9], int width, int height, eTransform transform) {
-    memset(mat, 0, sizeof(*mat) * 9);
-
-    const float* t = getTransforms().at(transform).data();
-    float        x = 2.0f / width;
-    float        y = 2.0f / height;
-
-    // Rotation + reflection
-    mat[0] = x * t[0];
-    mat[1] = x * t[1];
-    mat[3] = y * -t[3];
-    mat[4] = y * -t[4];
-
-    // Translation
-    mat[2] = -copysign(1.0f, mat[0] + mat[1]);
-    mat[5] = -copysign(1.0f, mat[3] + mat[4]);
-
-    // Identity
-    mat[8] = 1.0f;
-}
-
-void projectBox(float mat[9], CBox& box, eTransform transform, float rotation, const float projection[9]) {
-    double x      = box.x;
-    double y      = box.y;
-    double width  = box.width;
-    double height = box.height;
-
-    matrixIdentity(mat);
-    matrixTranslate(mat, x, y);
-
-    if (rotation != 0) {
-        matrixTranslate(mat, width / 2, height / 2);
-        matrixRotate(mat, rotation);
-        matrixTranslate(mat, -width / 2, -height / 2);
-    }
-
-    matrixScale(mat, width, height);
-
-    if (transform != HYPRUTILS_TRANSFORM_NORMAL) {
-        matrixTranslate(mat, 0.5, 0.5);
-        matrixTransform(mat, transform);
-        matrixTranslate(mat, -0.5, -0.5);
-    }
-
-    matrixMultiply(mat, projection, mat);
-}
-
 wl_output_transform invertTransform(wl_output_transform tr) {
     if ((tr & WL_OUTPUT_TRANSFORM_90) && !(tr & WL_OUTPUT_TRANSFORM_FLIPPED))
         tr = (wl_output_transform)(tr ^ (int)WL_OUTPUT_TRANSFORM_180);
diff --git a/src/helpers/math/Math.hpp b/src/helpers/math/Math.hpp
index f57cef93..9b73a20f 100644
--- a/src/helpers/math/Math.hpp
+++ b/src/helpers/math/Math.hpp
@@ -4,17 +4,9 @@
 
 // includes box and vector as well
 #include <hyprutils/math/Region.hpp>
+#include <hyprutils/math/Mat3x3.hpp>
 
 using namespace Hyprutils::Math;
 
 eTransform          wlTransformToHyprutils(wl_output_transform t);
-void                projectBox(float mat[9], CBox& box, eTransform transform, float rotation, const float projection[9]);
-void                matrixProjection(float mat[9], int width, int height, eTransform transform);
-void                matrixTransform(float mat[9], eTransform transform);
-void                matrixRotate(float mat[9], float rad);
-void                matrixScale(float mat[9], float x, float y);
-void                matrixTranslate(float mat[9], float x, float y);
-void                matrixTranspose(float mat[9], const float a[9]);
-void                matrixMultiply(float mat[9], const float a[9], const float b[9]);
-void                matrixIdentity(float mat[9]);
 wl_output_transform invertTransform(wl_output_transform tr);