From 1072f3225c84025440e1fbfa09ca2016721df9cf Mon Sep 17 00:00:00 2001
From: jacob <jacob@cagori.com>
Date: Tue, 27 May 2025 02:10:18 -0500
Subject: [PATCH] xform_from_rect

---
 src/draw.c |  3 +--
 src/math.h | 10 ++++++++++
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/draw.c b/src/draw.c
index 339e5653..85385abb 100644
--- a/src/draw.c
+++ b/src/draw.c
@@ -437,8 +437,7 @@ struct rect draw_text(struct gpu_cmd_store store, struct draw_text_params params
             struct drawable_glyph *tg = &line->glyphs[i];
             struct v2 pos = V2(draw_pos.x + tg->off_x, draw_pos.y + tg->off_y);
             struct v2 size = V2(tg->width, tg->height);
-            struct v2 pos_center = v2_add(pos, v2_mul(size, 0.5));
-            struct xform xf = XFORM_TRS(.t = pos_center, size);
+            struct xform xf = xform_from_rect(RECT_FROM_V2(pos, size));
             draw_texture(store, DRAW_TEXTURE_PARAMS(.xf = xf, .texture = params.font->texture, .tint = params.color, .clip = tg->clip));
             draw_pos.x += tg->advance;
 
diff --git a/src/math.h b/src/math.h
index cc1ecff8..8b0f31e0 100644
--- a/src/math.h
+++ b/src/math.h
@@ -986,6 +986,16 @@ INLINE struct xform xform_from_trs(struct trs trs)
     return xf;
 }
 
+INLINE struct xform xform_from_rect(struct rect rect)
+{
+    struct v2 half_size = v2_mul(rect.size, 0.5);
+    struct xform xf = ZI;
+    xf.bx = V2(rect.size.x, 0);
+    xf.by = V2(0, rect.size.y);
+    xf.og = v2_add(rect.pos, half_size);
+    return xf;
+}
+
 INLINE struct xform xform_translated(struct xform xf, struct v2 v)
 {
     xf.og = V2(xf.bx.x * v.x + xf.by.x * v.y + xf.og.x, xf.bx.y * v.x + xf.by.y * v.y + xf.og.y);