diff --git a/util/test/demos/test_common.cpp b/util/test/demos/test_common.cpp
index 3575da017..79a541c7e 100644
--- a/util/test/demos/test_common.cpp
+++ b/util/test/demos/test_common.cpp
@@ -24,6 +24,7 @@
 
 #include "test_common.h"
 #include <stdarg.h>
+#include <stdio.h>
 #include <algorithm>
 
 const DefaultA2V DefaultTri[3] = {
@@ -32,6 +33,62 @@ const DefaultA2V DefaultTri[3] = {
     {Vec3f(0.5f, -0.5f, 0.0f), Vec4f(0.0f, 0.0f, 1.0f, 1.0f), Vec2f(1.0f, 0.0f)},
 };
 
+/* XPM */
+const char *SmileyTexture[63] = {
+    /* columns rows colors chars-per-pixel */
+    "48 48 14 1 ", "  c #000017", ". c #FF0017", "X c #FF735C", "o c #00FF17", "O c #FF8B5C",
+    "+ c #D0B95C", "@ c #E7A25C", "# c #B9D05C", "$ c #8BFF45", "% c #A2E745", "& c #A2FF45",
+    "* c #A2E75C", "= c #1700FF", "- c #B9FFFF",
+    /* pixels */
+    "------------------------------------------------",
+    "------------------------------------------------",
+    "------------------------------------------------",
+    "------------------------------------------------",
+    "------------------------------------------------",
+    "---------------------      ---------------------",
+    "-----------------              -----------------",
+    "---------------    XOOOOOOO@@    ---------------",
+    "-------------   XXXOOOOOO@@@@@@@   -------------",
+    "------------   XXXOOOOOO@@@@@@@@@   ------------",
+    "-----------  XXXXOOOOOO@@@@@@@@@@++  -----------",
+    "----------  XXXXOOOOOO@@@@@@@@@@++++  ----------",
+    "---------  XXXXOOOOOO@@@@@@@@@@++++++  ---------",
+    "--------  XXXXOOOOOO@@@@@@@@@++++++++#  --------",
+    "--------  XXXOOOOOO@@@@@@@@@++++++++##  --------",
+    "-------  XXXOOOOOO@@@@@@@@@++++++++####  -------",
+    "------- XXOOOOO...@@@@@@@@+++++ooo###### -------",
+    "------  XOOOOO.....@@@@@@+++++ooooo#####  ------",
+    "------  OOOOOO.....@@@@@++++++ooooo#####  ------",
+    "------ OOOOOOO.....@@@@+++++++ooooo####%% ------",
+    "------ OOOOOO@.....@@@++++++++ooooo###%%* ------",
+    "-----  OOOOO@@.....@@++++++++#ooooo##%%*%  -----",
+    "-----  OOOO@@@@...@@++++++++###ooo##%%*%%  -----",
+    "-----  OOO@@@@@@@@@++++++++########%%*%%%  -----",
+    "-----  O@@@@@@@@@@++++++++########%%*%%%%  -----",
+    "-----  @@@@@@@@@@++++++++########%%*%%%%%  -----",
+    "-----  @@@@@@@@@++++++++########%%*%%%%%&  -----",
+    "------ @@@@@@@@++++++++########%%*%%%%%&& ------",
+    "------ @@@@==+++++++++########%%*%%==%&&& ------",
+    "------  @@@===+++++++########%%*%%===&&&  ------",
+    "------  @@@+===+++++########%%*%%%==&&&$  ------",
+    "------- @@+++===+++#######%%%*%%%==&&&$$ -------",
+    "-------  +++++===+#######%%%*%%%==&&&$$  -------",
+    "--------  +++++===######%%%%%%%===&&$$  --------",
+    "--------  +++++#====###%%*%%%====&&$$$  --------",
+    "---------  +++####===#%%*%%%====&&$$$  ---------",
+    "----------  +######===========&&&$$$  ----------",
+    "-----------  #######%=======&&&&$$$  -----------",
+    "------------   ####%%*%%%%%&&&&$$   ------------",
+    "-------------   ##%%*%%%%%&&&&$$   -------------",
+    "---------------    *%%%%%&&&&    ---------------",
+    "-----------------              -----------------",
+    "---------------------      ---------------------",
+    "------------------------------------------------",
+    "------------------------------------------------",
+    "------------------------------------------------",
+    "------------------------------------------------",
+    "------------------------------------------------"};
+
 // since tolower is int -> int, this warns below. make a char -> char alternative
 char toclower(char c)
 {
@@ -90,6 +147,36 @@ void DebugPrint(const char *fmt, ...)
 #endif
 }
 
+void LoadXPM(const char **XPM, Texture &tex)
+{
+  uint32_t numColors = 0;
+  sscanf(XPM[0], "%u %u %u %*u", &tex.width, &tex.height, &numColors);
+
+  uint32_t colors[256] = {};
+
+  for(uint32_t c = 0; c < numColors; c++)
+  {
+    char ch = XPM[c + 1][0];
+
+    uint32_t col = 0;
+
+    sscanf(XPM[c + 1] + 1, " c #%x", &col);
+
+    // need to bgr swap, set full alpha
+    colors[ch] = 0xff000000 | ((col & 0xff) << 16) | (col & 0xff00) | ((col & 0xff0000) >> 16);
+  }
+
+  tex.data.resize(tex.width * tex.height);
+
+  for(uint32_t y = 0; y < tex.height; y++)
+  {
+    const char *row = XPM[1 + numColors + y];
+
+    for(uint32_t x = 0; x < tex.width; x++)
+      tex.data[y * tex.width + x] = colors[row[x]];
+  }
+}
+
 #include "3rdparty/shaderc/shaderc.h"
 
 #ifndef HAVE_SHADERC
diff --git a/util/test/demos/test_common.h b/util/test/demos/test_common.h
index c510c7b2e..c95d48441 100644
--- a/util/test/demos/test_common.h
+++ b/util/test/demos/test_common.h
@@ -105,6 +105,18 @@ struct Vec4f
   float x, y, z, w;
 };
 
+struct Vec4i
+{
+  Vec4i(int32_t X = 0, int32_t Y = 0, int32_t Z = 0, int32_t W = 0)
+  {
+    x = X;
+    y = Y;
+    z = Z;
+    w = W;
+  }
+  int32_t x, y, z, w;
+};
+
 struct DefaultA2V
 {
   Vec3f pos;
@@ -113,6 +125,16 @@ struct DefaultA2V
 };
 
 extern const DefaultA2V DefaultTri[3];
+extern const char *SmileyTexture[63];
+
+struct Texture
+{
+  uint32_t width;
+  uint32_t height;
+  std::vector<uint32_t> data;
+};
+
+void LoadXPM(const char **XPM, Texture &tex);
 
 struct GraphicsWindow
 {