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2D.bi (Windows)

Uploader:	Westbeam
Datum/Zeit:	08.06.2011 21:42:24
#include once "fbgfx.bi"



#include once "GL/gl.bi"







#ifdef Render_OpenGL











namespace ogl







dim shared as integer CORS(255)



dim shared as any ptr BUFFER



dim shared as integer TEXTURE,SCRX,SCRY,BPP



dim shared as double OFX,OFY,UPTIME



dim shared as integer FRAMESKIP=0











sub CallScreen( WID as integer,HEI as integer, BPP as integer,PAGS as integer,FLAGS as integer )



  Screenres WID,HEI,BPP,PAGS,FLAGS



  WindowTitle("X- the forgotten battles")



end sub







' ***** Make a integer multiple of a power of 2 ****



#macro ogl_MulBits( MultipleBits, MyIntVar )



asm



  mov eax,[MyIntVar]



  dec eax



  shr eax,(MultipleBits)



  inc eax



  shl eax,(MultipleBits)



  mov [MyIntVar],eax



end asm



#endmacro



' ***** Raise a integer to a power of 2 *****



#macro ogl_Power2( MyIntNumber )



asm



  mov eax,[MyIntNumber]



  dec eax



  bsr ecx,eax



  inc ecx



  mov eax,0xFFFF0000



  rol eax,cl



  and eax,0xFFFF



  inc eax



  mov [MyIntNumber],eax



end asm



#endmacro







end namespace















#undef screenres



sub screenres( WID as integer=-1, HEI as integer=-1, BPP as integer=32, PAGS as integer=1, FLAGS as integer=0 )







  dim as integer TEXX,TEYY



  dim as any ptr TMP



  dim as integer SCX,SCY



  ScreenControl(fb.GET_DESKTOP_SIZE,SCX,SCY)



  if WID=-1 then WID=SCX



  if HEI=-1 then HEI=SCY



  if WID>=SCX or HEI>=SCY then FLAGS or= fb.gfx_fullscreen







  ogl_Power2(BPP)



  if BPP <> 8 and BPP <> 32 and BPP <> 32 then BPP = 32



  if BPP = 8 then exit sub



  ogl_Mulbits( 3, WID)



  ogl_Mulbits( 3, HEI)



  ogl.SCRX = WID:ogl.SCRY = HEI



  TEXX = WID:TEYY = HEI



  ogl_Power2(TEXX)



  ogl_Power2(TEYY)



  ogl.OFX=WID/TEXX



  ogl.OFY=HEI/TEYY



  ogl.BPP=BPP



  ogl.callscreen WID,HEI,BPP,PAGS,fb.GFX_OPENGL or FLAGS



  glViewport(0,0,WID,HEI)



  glMatrixMode(GL_PROJECTION)  'Select The Projection Matrix



  glLoadIdentity()             'Reset The Projection Matrix



  glMatrixMode(GL_MODELVIEW)   'Select The Modelview Matrix



  glLoadIdentity()             'Reset The Projection Matrix



  glEnable(GL_TEXTURE_2D)      'Texture Mapping



  glGenTextures 1, @ogl.TEXTURE



  glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST)



  glClearColor(0f, 0f, 0f, 1.0f)



  glClear(GL_COLOR_BUFFER_BIT)



  glLoadIdentity()



  glBindTexture GL_TEXTURE_2D, ogl.TEXTURE



  glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR)



  glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR)



  if BPP = 8 then BPP=32



  TMP = ImageCreate(TEXX,TEYY,0,BPP)



  if BPP = 32 then



    glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA,TEXX,TEYY,0,GL_BGRA,GL_UNSIGNED_BYTE,TMP+sizeof(fb.image))



  else



    glTexImage2D(GL_TEXTURE_2D,0,GL_RGB,TEXX,TEYY,0,GL_RGB,GL_UNSIGNED_SHORT_5_6_5,TMP+sizeof(fb.image))



  end if







  if ogl.bpp = 8 then



    ogl.BUFFER = TMP



  else



    ImageDestroy(TMP)



  end if



  color ,rgba(0,0,0,0)



  cls



end sub







#undef screensync







sub screenSync()



  glActiveTexture(GL_TEXTURE0)



  glClientActiveTexture(GL_TEXTURE0)







  dim BT as double,TMP as any ptr, BUFSZ as integer



  static as integer FS



  BT=timer



  glBindTexture GL_TEXTURE_2D, ogl.TEXTURE



  FS += 1



  if FS > OGL.FRAMESKIP then FS=0



  if FS=0 then



  if ogl.BPP = 32 then



    glTexSubImage2D(GL_TEXTURE_2D,0,0,0,ogl.SCRX,ogl.SCRY,GL_BGRA,GL_UNSIGNED_BYTE,screenptr)







  elseif ogl.BPP = 16 then



    glTexSubImage2D(GL_TEXTURE_2D,0,0,0,ogl.SCRX,ogl.SCRY,GL_RGB,GL_UNSIGNED_SHORT_5_6_5,screenptr)



  else



    for BUFSZ = 0 to 255



      'ogl.CORS(BUFSZ) = rgba(64,0,BUFSZ,0)



      Palette Get BUFSZ,ogl.CORS(BUFSZ)



    next BUFSZ



    TMP = screenptr



    BUFSZ = ogl.SCRX*ogl.SCRY



    asm



      mov esi,[TMP]



      mov edi,[ogl.BUFFER]



      add edi,sizeof(fb.image)



      mov edx,offset ogl.CORS



      mov ecx,[BUFSZ]



      xor eax,eax



      _8TO32_NEXTPIXEL_:



      lodsb



      mov ebx,[EDX+EAX*4]



      mov [edi],ebx



      add edi,4



      dec ecx



      jnz _8TO32_NEXTPIXEL_



    end asm



    glTexSubImage2D(GL_TEXTURE_2D,0,0,0,ogl.SCRX,ogl.SCRY,GL_BGRA,GL_UNSIGNED_BYTE,ogl.BUFFER+sizeof(fb.image))



  end if



  end if







  glDisable(GL_LIGHTING)



  glDisable(GL_CULL_FACE)



  glDisable(GL_NORMALIZE)



  glMatrixMode (GL_PROJECTION)



  glPushMatrix ()



  glLoadIdentity ()



  glOrtho (-1, 1, -1, 1, -1, 1)



  glEnable(GL_TEXTURE_2D)



  glEnable(GL_BLEND)



  glEnable(GL_ALPHA_TEST)



  glDisable(GL_DEPTH_TEST)



  glMatrixMode (GL_MODELVIEW)



  glLoadIdentity ()







  glBegin(GL_QUADS)



  glTexCoord2f(ogl.OFX, ogl.OFY):glVertex3f(1,-1,0)



  glTexCoord2f(0, ogl.OFY):glVertex3f(-1,-1,0)



  glTexCoord2f(0,0):glVertex3f(-1,1,0)



  glTexCoord2f(ogl.OFX, 0):glVertex3f(1,1,0)



  glEnd()



  ogl.UPTIME=timer-BT



  flip







  glEnable(GL_LIGHTING)



  glEnable(GL_CULL_FACE)



  glEnable(GL_NORMALIZE)



  glDisable(GL_TEXTURE_2D)



  glDisable(GL_BLEND)



  glEnable(GL_DEPTH_TEST)











end sub







#else



namespace ogl



dim shared as double UPTIME



dim shared as integer FRAMESKIP=0



end namespace



#endif