blender/source/gameengine/BlenderRoutines/KX_BlenderCanvas.cpp

225 lines
4.6 KiB
C++

/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file gameengine/BlenderRoutines/KX_BlenderCanvas.cpp
* \ingroup blroutines
*/
#include "KX_BlenderCanvas.h"
#include "DNA_screen_types.h"
#include <stdio.h>
KX_BlenderCanvas::KX_BlenderCanvas(struct wmWindow *win, RAS_Rect &rect, struct ARegion *ar) :
m_win(win),
m_frame_rect(rect)
{
// initialize area so that it's available for game logic on frame 1 (ImageViewport)
m_area_rect = rect;
// area boundaries needed for mouse coordinates in Letterbox framing mode
m_area_left = ar->winrct.xmin;
m_area_top = ar->winrct.ymax;
}
KX_BlenderCanvas::~KX_BlenderCanvas()
{
}
void KX_BlenderCanvas::Init()
{
glDepthFunc(GL_LEQUAL);
}
void KX_BlenderCanvas::SwapBuffers()
{
BL_SwapBuffers(m_win);
}
void KX_BlenderCanvas::ResizeWindow(int width, int height)
{
// Not implemented for the embedded player
}
void KX_BlenderCanvas::BeginFrame()
{
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
}
void KX_BlenderCanvas::EndFrame()
{
// this is needed, else blender distorts a lot
glPopAttrib();
glPushAttrib(GL_ALL_ATTRIB_BITS);
glDisable(GL_FOG);
}
void KX_BlenderCanvas::ClearColor(float r,float g,float b,float a)
{
glClearColor(r,g,b,a);
}
void KX_BlenderCanvas::ClearBuffer(int type)
{
int ogltype = 0;
if (type & RAS_ICanvas::COLOR_BUFFER )
ogltype |= GL_COLOR_BUFFER_BIT;
if (type & RAS_ICanvas::DEPTH_BUFFER )
ogltype |= GL_DEPTH_BUFFER_BIT;
glClear(ogltype);
}
int KX_BlenderCanvas::GetWidth(
) const {
return m_frame_rect.GetWidth();
}
int KX_BlenderCanvas::GetHeight(
) const {
return m_frame_rect.GetHeight();
}
int KX_BlenderCanvas::GetMouseX(int x)
{
float left = GetWindowArea().GetLeft();
return float(x - (left - m_area_left));
}
int KX_BlenderCanvas::GetMouseY(int y)
{
float top = GetWindowArea().GetTop();
return float(y - (m_area_top - top));
}
float KX_BlenderCanvas::GetMouseNormalizedX(int x)
{
int can_x = GetMouseX(x);
return float(can_x)/this->GetWidth();
}
float KX_BlenderCanvas::GetMouseNormalizedY(int y)
{
int can_y = GetMouseY(y);
return float(can_y)/this->GetHeight();
}
RAS_Rect &
KX_BlenderCanvas::
GetWindowArea(
){
return m_area_rect;
}
void
KX_BlenderCanvas::
SetViewPort(
int x1, int y1,
int x2, int y2
){
/* x1 and y1 are the min pixel coordinate (e.g. 0)
x2 and y2 are the max pixel coordinate
the width,height is calculated including both pixels
therefore: max - min + 1
*/
int vp_width = (x2 - x1) + 1;
int vp_height = (y2 - y1) + 1;
int minx = m_frame_rect.GetLeft();
int miny = m_frame_rect.GetBottom();
m_area_rect.SetLeft(minx + x1);
m_area_rect.SetBottom(miny + y1);
m_area_rect.SetRight(minx + x2);
m_area_rect.SetTop(miny + y2);
glViewport(minx + x1, miny + y1, vp_width, vp_height);
glScissor(minx + x1, miny + y1, vp_width, vp_height);
}
void KX_BlenderCanvas::SetMouseState(RAS_MouseState mousestate)
{
m_mousestate = mousestate;
switch (mousestate)
{
case MOUSE_INVISIBLE:
{
BL_HideMouse(m_win);
break;
}
case MOUSE_WAIT:
{
BL_WaitMouse(m_win);
break;
}
case MOUSE_NORMAL:
{
BL_NormalMouse(m_win);
break;
}
default:
{
}
}
}
// (0,0) is top left, (width,height) is bottom right
void KX_BlenderCanvas::SetMousePosition(int x,int y)
{
int winX = m_frame_rect.GetLeft();
int winY = m_frame_rect.GetBottom();
int winH = m_frame_rect.GetHeight();
BL_warp_pointer(m_win, winX + x, winY + (winH-y));
}
void KX_BlenderCanvas::MakeScreenShot(const char* filename)
{
ScrArea area_dummy= {0};
area_dummy.totrct.xmin = m_frame_rect.GetLeft();
area_dummy.totrct.xmax = m_frame_rect.GetRight();
area_dummy.totrct.ymin = m_frame_rect.GetBottom();
area_dummy.totrct.ymax = m_frame_rect.GetTop();
BL_MakeScreenShot(&area_dummy, filename);
}