Стартовый пул

bgrabitmap/test/test4lcl_opengl/opengltest1/opengltest1.lpi

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+<?xml version="1.0" encoding="UTF-8"?>
+<CONFIG>
+  <ProjectOptions>
+    <Version Value="9"/>
+    <PathDelim Value="\"/>
+    <General>
+      <SessionStorage Value="InProjectDir"/>
+      <MainUnit Value="0"/>
+      <Title Value="opengltest1"/>
+      <ResourceType Value="res"/>
+      <UseXPManifest Value="True"/>
+      <Icon Value="0"/>
+    </General>
+    <i18n>
+      <EnableI18N LFM="False"/>
+    </i18n>
+    <VersionInfo>
+      <StringTable ProductVersion=""/>
+    </VersionInfo>
+    <BuildModes Count="1">
+      <Item1 Name="Default" Default="True"/>
+    </BuildModes>
+    <PublishOptions>
+      <Version Value="2"/>
+    </PublishOptions>
+    <RunParams>
+      <local>
+        <FormatVersion Value="1"/>
+      </local>
+    </RunParams>
+    <RequiredPackages Count="3">
+      <Item1>
+        <PackageName Value="BGRABitmapPack"/>
+      </Item1>
+      <Item2>
+        <PackageName Value="lazopenglcontext"/>
+      </Item2>
+      <Item3>
+        <PackageName Value="LCL"/>
+      </Item3>
+    </RequiredPackages>
+    <Units Count="2">
+      <Unit0>
+        <Filename Value="opengltest1.lpr"/>
+        <IsPartOfProject Value="True"/>
+      </Unit0>
+      <Unit1>
+        <Filename Value="unit1.pas"/>
+        <IsPartOfProject Value="True"/>
+        <ComponentName Value="Form1"/>
+        <HasResources Value="True"/>
+        <ResourceBaseClass Value="Form"/>
+        <UnitName Value="Unit1"/>
+      </Unit1>
+    </Units>
+  </ProjectOptions>
+  <CompilerOptions>
+    <Version Value="11"/>
+    <PathDelim Value="\"/>
+    <Target>
+      <Filename Value="opengltest1"/>
+    </Target>
+    <SearchPaths>
+      <IncludeFiles Value="$(ProjOutDir)"/>
+      <UnitOutputDirectory Value="lib\$(TargetCPU)-$(TargetOS)"/>
+    </SearchPaths>
+    <Linking>
+      <Options>
+        <Win32>
+          <GraphicApplication Value="True"/>
+        </Win32>
+      </Options>
+    </Linking>
+  </CompilerOptions>
+  <Debugging>
+    <Exceptions Count="3">
+      <Item1>
+        <Name Value="EAbort"/>
+      </Item1>
+      <Item2>
+        <Name Value="ECodetoolError"/>
+      </Item2>
+      <Item3>
+        <Name Value="EFOpenError"/>
+      </Item3>
+    </Exceptions>
+  </Debugging>
+</CONFIG>

bgrabitmap/test/test4lcl_opengl/opengltest1/opengltest1.lpr

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+program opengltest1;
+
+{$mode objfpc}{$H+}
+
+uses
+  {$IFDEF UNIX}{$IFDEF UseCThreads}
+  cthreads,
+  {$ENDIF}{$ENDIF}
+  Interfaces, // this includes the LCL widgetset
+  Forms, lazopenglcontext, Unit1
+  { you can add units after this };
+
+{$R *.res}
+
+begin
+  RequireDerivedFormResource := True;
+  Application.Initialize;
+  Application.CreateForm(TForm1, Form1);
+  Application.Run;
+end.
+

bgrabitmap/test/test4lcl_opengl/opengltest1/unit1.lfm

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+object Form1: TForm1
+  Left = 230
+  Height = 240
+  Top = 121
+  Width = 320
+  Caption = 'Ground test'
+  OnCreate = FormCreate
+  OnDestroy = FormDestroy
+  LCLVersion = '1.4.0.4'
+end

bgrabitmap/test/test4lcl_opengl/opengltest1/unit1.pas

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+unit Unit1;
+{
+-For using OpenGl with BGRABitmap and LCl:
+-Add two packages (take a look at project inspector!)
+-Then you need a TOpenGLControl and do create stuff and setting events
+-If you want OpenGl speed you should use a texture again and again, dont make it each time unless it is necceray so here we will load them once
+-For making texture you can use TBGLBitmap or IBGLTexture
+-TBGLBitmap is like a TBGRABitmap with OpenGl stuff and a texture property, you can draw, load and whatever here and then use its texture and if you dont need it later free it.
+-IBGLTexture is an interface so you dont need to free it,just use it and note that it will use less memory
+-After loading you need to draw background with BGLViewPort
+-After that draw your textures with BGLCanvas. for more info just take a look at it's class
+-In the end do SwapBuffers so all you paint goes to buffer and will draw
+
+-For more info you should check other demos, classes, Wiki or ask on the forum
+http://forum.lazarus.freepascal.org/index.php?board=46.0
+}
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs,
+  OpenGLContext, BGRABitmap, BGRABitmapTypes, BGRAOpenGL;
+
+type
+
+  { TForm1 }
+
+  TForm1 = class(TForm)
+    procedure FormCreate(Sender: TObject);
+    procedure FormDestroy(Sender: TObject);
+  private
+    { private declarations }
+    OriginalBounds: TRect;
+    OriginalWindowState: TWindowState;
+    procedure SwitchFullScreen;
+  public
+    bmp: TBGLBitmap;
+    Tex: IBGLTexture;
+    OpenGLControl: TOpenGLControl;
+    DataLoaded: boolean;
+    procedure Load;  
+    procedure Unload;
+    procedure OpenGLControlDblClick(Sender: TObject);
+    procedure OpenGLControlPaint(Sender: TObject);
+    procedure OpenGLControlMouseMove(Sender: TObject; {%H-}Shift: TShiftState; {%H-}X, {%H-}Y: integer);
+  end;
+
+var
+  Form1: TForm1;
+
+implementation
+
+{$R *.lfm}
+
+{ TForm1 }
+
+procedure TForm1.SwitchFullScreen;
+begin
+  if BorderStyle <> bsNone then begin
+    // To full screen
+    OriginalWindowState := WindowState;
+    OriginalBounds := BoundsRect;
+
+    BorderStyle := bsNone;
+    BoundsRect := Screen.MonitorFromWindow(Handle).BoundsRect;
+  end else begin
+    // From full screen
+    BorderStyle := bsSizeable;
+    if OriginalWindowState = wsMaximized then
+      WindowState := wsMaximized
+    else
+      BoundsRect := OriginalBounds;
+  end;
+end;
+
+procedure TForm1.FormCreate(Sender: TObject);
+begin
+  OpenGLControl := TOpenGLControl.Create(Self);
+  with OpenGLControl do
+  begin
+    Align := alClient;
+    Parent := Self;
+    OnPaint := @OpenGLControlPaint;
+    OnMouseMove := @OpenGLControlMouseMove;
+    OnDblClick := @OpenGLControlDblClick;
+    //If you dont do it,you will have some problems
+    AutoResizeViewport := True;
+  end;
+  DataLoaded := False;
+end;
+
+procedure TForm1.FormDestroy(Sender: TObject);
+begin
+  OpenGLControl.Free;
+end;
+
+procedure TForm1.Load;
+var path: string;
+begin
+  if not DataLoaded then
+  begin
+    path := ExtractFilePath(Application.ExeName) + '..' + PathDelim + 'tux_game' + PathDelim + 'ground.png';
+    //Do this :
+    //Way1
+    //Tex := BGLTexture(path);
+
+    //Or this for more editing options
+    //Way2
+    bmp := TBGLBitmap.Create(path);
+    bmp.Rectangle(0,0,bmp.Width,bmp.Height,BGRABlack,dmSet);
+    Tex:=bmp.MakeTextureAndFree;
+
+    //Or whatever you want!
+
+    DataLoaded := True;
+  end;
+end;
+
+procedure TForm1.Unload;
+begin
+  if DataLoaded then
+  begin
+    Tex := nil;
+    DataLoaded := False;
+  end;
+end;
+
+// double-click to switch to full screen
+procedure TForm1.OpenGLControlDblClick(Sender: TObject);
+begin
+  Unload; //context may change when switching to full-screen
+  SwitchFullScreen;
+end;
+
+procedure TForm1.OpenGLControlPaint(Sender: TObject);
+var
+  mousePos: TPoint;
+begin
+  { Load data }
+  Load;
+  { Draw Background }
+  BGLViewPort(OpenGLControl.Width, OpenGLControl.Height, BGRAWhite);
+  { Draw Texture }
+  mousePos := ScreenToClient(Mouse.CursorPos);
+  BGLCanvas.PutImage(mousePos.x - Tex.Width div 2, mousePos.y - Tex.Height div 2, Tex);
+  { Update }
+  OpenGLControl.SwapBuffers;
+end;
+
+procedure TForm1.OpenGLControlMouseMove(Sender: TObject; Shift: TShiftState; X, Y: integer);
+begin
+  OpenGLControl.DoOnPaint;
+end;
+
+end.