1 files changed, 139 insertions, 0 deletions
diff --git a/src/menu/UDrawTexture.pas b/src/menu/UDrawTexture.pas
new file mode 100644
index 00000000..bc136f11
--- /dev/null
+++ b/src/menu/UDrawTexture.pas
@@ -0,0 +1,139 @@
+{* UltraStar Deluxe - Karaoke Game
+ *
+ * UltraStar Deluxe is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *}
+
+unit UDrawTexture;
+
+interface
+
+{$IFDEF FPC}
+  {$MODE Delphi}
+{$ENDIF}
+
+{$I switches.inc}
+
+uses
+  UTexture;
+
+procedure DrawLine(X1, Y1, X2, Y2, ColR, ColG, ColB: real);
+procedure DrawQuad(X,  Y,  W,  H,  ColR, ColG, ColB: real);
+procedure DrawTexture(Texture: TTexture);
+
+implementation
+
+uses
+  gl;
+
+procedure DrawLine(X1, Y1, X2, Y2, ColR, ColG, ColB: real);
+begin
+  glColor3f(ColR, ColG, ColB);
+  glBegin(GL_LINES);
+    glVertex2f(x1, y1);
+    glVertex2f(x2, y2);
+  glEnd;
+end;
+
+procedure DrawQuad(X, Y, W, H, ColR, ColG, ColB: real);
+begin
+  glColor3f(ColR, ColG, ColB);
+  glBegin(GL_QUADS);
+    glVertex2f(x,   y);
+    glVertex2f(x,   y+h);
+    glVertex2f(x+w, y+h);
+    glVertex2f(x+w, y);
+  glEnd;
+end;
+
+procedure DrawTexture(Texture: TTexture);
+var
+  x1, x2, x3, x4:     real;
+  y1, y2, y3, y4:     real;
+  xt1, xt2, xt3, xt4: real;
+  yt1, yt2, yt3, yt4: real;
+begin
+  with Texture do
+  begin
+    glColor4f(ColR * Int, ColG * Int, ColB * Int, Alpha);
+    glEnable(GL_TEXTURE_2D);
+    glEnable(GL_BLEND);
+    glDepthRange(0, 10);
+    glDepthFunc(GL_LEQUAL);
+//    glDepthFunc(GL_GEQUAL);
+    glEnable(GL_DEPTH_TEST);
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+//    glBlendFunc(GL_SRC_COLOR, GL_ZERO);
+    glBindTexture(GL_TEXTURE_2D, TexNum);
+
+    x1 := x;
+    x2 := x;
+    x3 := x+w*scaleW;
+    x4 := x+w*scaleW;
+    y1 := y;
+    y2 := y+h*scaleH;
+    y3 := y+h*scaleH;
+    y4 := y;
+    if Rot <> 0 then
+    begin
+      xt1 := x1 - (x + w/2);
+      xt2 := x2 - (x + w/2);
+      xt3 := x3 - (x + w/2);
+      xt4 := x4 - (x + w/2);
+      yt1 := y1 - (y + h/2);
+      yt2 := y2 - (y + h/2);
+      yt3 := y3 - (y + h/2);
+      yt4 := y4 - (y + h/2);
+
+      x1 := (x + w/2) + xt1 * cos(Rot) - yt1 * sin(Rot);
+      x2 := (x + w/2) + xt2 * cos(Rot) - yt2 * sin(Rot);
+      x3 := (x + w/2) + xt3 * cos(Rot) - yt3 * sin(Rot);
+      x4 := (x + w/2) + xt4 * cos(Rot) - yt4 * sin(Rot);
+
+      y1 := (y + h/2) + yt1 * cos(Rot) + xt1 * sin(Rot);
+      y2 := (y + h/2) + yt2 * cos(Rot) + xt2 * sin(Rot);
+      y3 := (y + h/2) + yt3 * cos(Rot) + xt3 * sin(Rot);
+      y4 := (y + h/2) + yt4 * cos(Rot) + xt4 * sin(Rot);
+
+    end;
+
+{
+    glBegin(GL_QUADS);
+      glTexCoord2f(0,    0);    glVertex3f(x1, y1, z);
+      glTexCoord2f(0,    TexH); glVertex3f(x2, y2, z);
+      glTexCoord2f(TexW, TexH); glVertex3f(x3, y3, z);
+      glTexCoord2f(TexW, 0);    glVertex3f(x4, y4, z);
+    glEnd;
+}
+
+    glBegin(GL_QUADS);
+      glTexCoord2f(TexX1*TexW, TexY1*TexH); glVertex3f(x1, y1, z);
+      glTexCoord2f(TexX1*TexW, TexY2*TexH); glVertex3f(x2, y2, z);
+      glTexCoord2f(TexX2*TexW, TexY2*TexH); glVertex3f(x3, y3, z);
+      glTexCoord2f(TexX2*TexW, TexY1*TexH); glVertex3f(x4, y4, z);
+    glEnd;
+  end;
+  glDisable(GL_DEPTH_TEST); 
+  glDisable(GL_TEXTURE_2D);
+end;
+
+end.