render: completely remove opengl calls form game code

[d2df-sdl.git] / src / game / opengl / r_game.pas

diff --git a/src/game/opengl/r_game.pas b/src/game/opengl/r_game.pas
index e200923be35bb5d3e9cf29583372a515bc073c7e..8acd51b104fcd4cc973f9d1b79f23ae7fd4996f6 100644 (file)
--- a/src/game/opengl/r_game.pas
+++ b/src/game/opengl/r_game.pas
@@ -29,7 +29,7 @@ implementation
     g_holmes,
 {$ENDIF}
     SysUtils, Classes, Math,
-    e_graphics,
+    g_base, r_graphics,
     g_system, g_touch,
     MAPDEF, xprofiler, utils, wadreader,
     g_textures, e_input, e_sound,
@@ -823,7 +823,7 @@ begin
   else e_Clear(GL_COLOR_BUFFER_BIT, 0, 0, 0);
 end;
 
-procedure DrawMinimap(p: TPlayer; RenderRect: e_graphics.TRect);
+procedure DrawMinimap(p: TPlayer; RenderRect: TRect);
 var
   a, aX, aY, aX2, aY2, Scale, ScaleSz: Integer;
 
@@ -1028,6 +1028,65 @@ begin
   e_AmbientQuad(sX, sY, sWidth, sHeight, ambColor.r, ambColor.g, ambColor.b, ambColor.a);
 end;
 
+// ////////////////////////////////////////////////////////////////////////// //
+var
+  ltexid: GLuint = 0;
+
+function g_Texture_Light (): Integer;
+const
+  Radius: Integer = 128;
+var
+  tex, tpp: PByte;
+  x, y, a: Integer;
+  dist: Double;
+begin
+  if ltexid = 0 then
+  begin
+    GetMem(tex, (Radius*2)*(Radius*2)*4);
+    tpp := tex;
+    for y := 0 to Radius*2-1 do
+    begin
+      for x := 0 to Radius*2-1 do
+      begin
+        dist := 1.0-sqrt((x-Radius)*(x-Radius)+(y-Radius)*(y-Radius))/Radius;
+        if (dist < 0) then
+        begin
+          tpp^ := 0; Inc(tpp);
+          tpp^ := 0; Inc(tpp);
+          tpp^ := 0; Inc(tpp);
+          tpp^ := 0; Inc(tpp);
+        end
+        else
+        begin
+          //tc.setPixel(x, y, Color(cast(int)(dist*255), cast(int)(dist*255), cast(int)(dist*255)));
+          if (dist > 0.5) then dist := 0.5;
+          a := round(dist*255);
+          if (a < 0) then a := 0 else if (a > 255) then a := 255;
+          tpp^ := 255; Inc(tpp);
+          tpp^ := 255; Inc(tpp);
+          tpp^ := 255; Inc(tpp);
+          tpp^ := Byte(a); Inc(tpp);
+        end;
+      end;
+    end;
+
+    glGenTextures(1, @ltexid);
+    //if (tid == 0) assert(0, "VGL: can't create screen texture");
+
+    glBindTexture(GL_TEXTURE_2D, ltexid);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+    //GLfloat[4] bclr = 0.0;
+    //glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, bclr.ptr);
+
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, Radius*2, Radius*2, 0, GL_RGBA{gltt}, GL_UNSIGNED_BYTE, tex);
+  end;
+
+  result := ltexid;
+end;
 
 // setup sX, sY, sWidth, sHeight, and transformation matrix before calling this!
 //FIXME: broken for splitscreen mode