mirror of https://github.com/aap/librw.git
142 lines
2.9 KiB
C++
142 lines
2.9 KiB
C++
#include <rw.h>
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#include <skeleton.h>
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#include "subrast.h"
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rw::Camera *Camera;
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rw::Camera *SubCameras[4];
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void
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CameraSetViewWindow(rw::Camera *camera, float width, float height, float vw)
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{
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rw::V2d viewWindow;
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// TODO: aspect ratio when fullscreen
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if(width > height){
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viewWindow.x = vw;
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viewWindow.y = vw / (width/height);
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}else{
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viewWindow.x = vw / (height/width);
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viewWindow.y = vw;
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}
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camera->setViewWindow(&viewWindow);
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}
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void
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UpdateSubRasters(rw::Camera *mainCamera, rw::int32 mainWidth, rw::int32 mainHeight)
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{
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rw::Rect rect[4];
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float width, height, border;
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border = mainHeight*0.05f;
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width = (mainWidth - border*3.0f) / 2.0f;
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height = (mainHeight - border*3.0f) / 2.0f;
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// top left
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rect[0].x = border;
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rect[0].y = border;
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rect[0].w = width;
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rect[0].h = height;
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// top right
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rect[1].x = border*2 + width;
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rect[1].y = border;
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rect[1].w = width;
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rect[1].h = height;
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// bottom left
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rect[2].x = border;
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rect[2].y = border*2 + height;
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rect[2].w = width;
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rect[2].h = height;
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// bottom left
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rect[3].x = border*2 + width;
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rect[3].y = border*2 + height;
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rect[3].w = width;
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rect[3].h = height;
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CameraSetViewWindow(SubCameras[0], width, height, 0.5f);
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for(int i = 1; i < 4; i++)
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CameraSetViewWindow(SubCameras[i], width, height, 0.5f + 0.4f);
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for(int i = 0; i < 4; i++){
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SubCameras[i]->frameBuffer->subRaster(mainCamera->frameBuffer, &rect[i]);
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SubCameras[i]->zBuffer->subRaster(mainCamera->zBuffer, &rect[i]);
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}
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}
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void
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PositionSubCameras(void)
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{
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rw::Frame *frame;
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rw::V3d pos;
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const float dist = 2.5f;
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// perspective
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pos.x = pos.y = 0.0f;
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pos.z = -4.0f;
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frame = SubCameras[0]->getFrame();
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frame->translate(&pos, rw::COMBINEREPLACE);
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// look along z
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pos.x = pos.y = 0.0f;
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pos.z = -dist;
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frame = SubCameras[1]->getFrame();
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frame->translate(&pos, rw::COMBINEREPLACE);
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// look along x
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pos.x = -dist;
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pos.y = pos.z = 0.0f;
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frame = SubCameras[2]->getFrame();
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frame->rotate(&Yaxis, 90.0f, rw::COMBINEREPLACE);
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frame->translate(&pos, rw::COMBINEPOSTCONCAT);
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// look along y
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pos.x = pos.z = 0.0f;
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pos.y = -dist;
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frame = SubCameras[3]->getFrame();
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frame->rotate(&Xaxis, -90.0f, rw::COMBINEREPLACE);
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frame->translate(&pos, rw::COMBINEPOSTCONCAT);
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}
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void
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CreateCameras(rw::World *world)
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{
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Camera = sk::CameraCreate(sk::globals.width, sk::globals.height, 1);
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assert(Camera);
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for(int i = 0; i < 4; i++){
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SubCameras[i] = sk::CameraCreate(0, 0, 1);
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assert(SubCameras[i]);
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SubCameras[i]->setNearPlane(0.1f);
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SubCameras[i]->setFarPlane(30.0f);
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world->addCamera(SubCameras[i]);
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if(i > 0)
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SubCameras[i]->setProjection(rw::Camera::PARALLEL);
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}
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PositionSubCameras();
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}
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void
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DestroyCameras(rw::World *world)
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{
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if(Camera){
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sk::CameraDestroy(Camera);
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Camera = nil;
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}
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for(int i = 0; i < 4; i++)
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if(SubCameras[i]){
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world->removeCamera(SubCameras[i]);
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sk::CameraDestroy(SubCameras[i]);
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SubCameras[i] = nil;
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}
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}
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