result CMuli3DPresentTargetLinuxX11::Present( const float32 *i_pSource, uint32 i_iFloats )
{
m3ddeviceparameters DeviceParameters = m_pParent->GetDeviceParameters();
// Copy pixels to the ximage-buffer ---------------------------------------
fpuTruncate();
if( m_iPixelBytes == 2 )
{
// 16-bit
uint16 *pDestination = (uint16 *)m_pXImage->data;
uint32 iPixels = DeviceParameters.iBackbufferWidth * DeviceParameters.iBackbufferHeight;
while( iPixels-- )
{
const int32 iR = iClamp( ftol( i_pSource[0] * m_i16bitMaxVal[0] ), 0, m_i16bitMaxVal[0] );
const int32 iG = iClamp( ftol( i_pSource[1] * m_i16bitMaxVal[1] ), 0, m_i16bitMaxVal[1] );
const int32 iB = iClamp( ftol( i_pSource[2] * m_i16bitMaxVal[2] ), 0, m_i16bitMaxVal[2] );
i_pSource += i_iFloats;
*pDestination++ = ( iR << m_i16bitShift[0] ) | ( iG << m_i16bitShift[1] ) | ( iB << m_i16bitShift[2] );
}
}
else
{
// 24- or 32-bit
uint8 *pDestination = (uint8 *)m_pXImage->data;
uint32 iPixels = DeviceParameters.iBackbufferWidth * DeviceParameters.iBackbufferHeight;
while( iPixels-- )
{
pDestination[0] = iClamp( ftol( i_pSource[2] * 255.0f ), 0, 255 ); // b
pDestination[1] = iClamp( ftol( i_pSource[1] * 255.0f ), 0, 255 ); // g
pDestination[2] = iClamp( ftol( i_pSource[0] * 255.0f ), 0, 255 ); // r
i_pSource += i_iFloats;
pDestination += m_iPixelBytes;
}
}
fpuReset();
// Present to window/screen
XPutImage( m_pDisplay, DeviceParameters.hDeviceWindow, m_WindowGC, m_pXImage, 0, 0,
0, 0, DeviceParameters.iBackbufferWidth, DeviceParameters.iBackbufferHeight );
return s_ok;
}
long cast_ray(MapData * map, float x0, float y0, float z0, float x1, float y1,
float z1, float length, long* x, long* y, long* z)
{
x1 = x0 + x1 * length;
y1 = y0 + y1 * length;
z1 = z0 + z1 * length;
Vector f, g;
LongVector a, c, d, p, i;
long cnt = 0;
ftol(x0-.5f,&a.x); ftol(y0-.5f,&a.y); ftol(z0-.5f,&a.z);
ftol(x1-.5f,&c.x); ftol(y1-.5f,&c.y); ftol(z1-.5f,&c.z);
if (c.x < a.x) {
d.x = -1; f.x = x0-a.x; g.x = (x0-x1)*1024; cnt += a.x-c.x;
}
else if (c.x != a.x) {
d.x = 1; f.x = a.x+1-x0; g.x = (x1-x0)*1024; cnt += c.x-a.x;
}
else
f.x = g.x = 0;
if (c.y < a.y) {
d.y = -1; f.y = y0-a.y; g.y = (y0-y1)*1024; cnt += a.y-c.y;
}
else if (c.y != a.y) {
d.y = 1; f.y = a.y+1-y0; g.y = (y1-y0)*1024; cnt += c.y-a.y;
}
else
f.y = g.y = 0;
if (c.z < a.z) {
d.z = -1; f.z = z0-a.z; g.z = (z0-z1)*1024; cnt += a.z-c.z;
}
else if (c.z != a.z) {
d.z = 1; f.z = a.z+1-z0; g.z = (z1-z0)*1024; cnt += c.z-a.z;
}
else
f.z = g.z = 0;
ftol(f.x*g.z - f.z*g.x,&p.x); ftol(g.x,&i.x);
ftol(f.y*g.z - f.z*g.y,&p.y); ftol(g.y,&i.y);
ftol(f.y*g.x - f.x*g.y,&p.z); ftol(g.z,&i.z);
if (cnt > length)
cnt = (long)length;
while (cnt)
{
if (((p.x|p.y) >= 0) && (a.z != c.z)) {
a.z += d.z; p.x -= i.x; p.y -= i.y;
}
else if ((p.z >= 0) && (a.x != c.x)) {
a.x += d.x; p.x += i.z; p.z -= i.y;
}
else {
a.y += d.y; p.y += i.z; p.z += i.x;
}
if (isvoxelsolidwrap(a.x, a.y,a.z)) {
*x = a.x;
*y = a.y;
*z = a.z;
return 1;
}
cnt--;
}
return 0;
}
long can_see(MapData * map, float x0, float y0, float z0, float x1, float y1,
float z1)
{
Vector f, g;
LongVector a, c, d, p, i;
long cnt = 0;
ftol(x0-.5f,&a.x); ftol(y0-.5f,&a.y); ftol(z0-.5f,&a.z);
ftol(x1-.5f,&c.x); ftol(y1-.5f,&c.y); ftol(z1-.5f,&c.z);
if (c.x < a.x) {
d.x = -1; f.x = x0-a.x; g.x = (x0-x1)*1024; cnt += a.x-c.x;
}
else if (c.x != a.x) {
d.x = 1; f.x = a.x+1-x0; g.x = (x1-x0)*1024; cnt += c.x-a.x;
}
else
f.x = g.x = 0;
if (c.y < a.y) {
d.y = -1; f.y = y0-a.y; g.y = (y0-y1)*1024; cnt += a.y-c.y;
}
else if (c.y != a.y) {
d.y = 1; f.y = a.y+1-y0; g.y = (y1-y0)*1024; cnt += c.y-a.y;
}
else
f.y = g.y = 0;
if (c.z < a.z) {
d.z = -1; f.z = z0-a.z; g.z = (z0-z1)*1024; cnt += a.z-c.z;
}
else if (c.z != a.z) {
d.z = 1; f.z = a.z+1-z0; g.z = (z1-z0)*1024; cnt += c.z-a.z;
}
else
f.z = g.z = 0;
ftol(f.x*g.z - f.z*g.x,&p.x); ftol(g.x,&i.x);
ftol(f.y*g.z - f.z*g.y,&p.y); ftol(g.y,&i.y);
ftol(f.y*g.x - f.x*g.y,&p.z); ftol(g.z,&i.z);
if (cnt > 32)
cnt = 32;
while (cnt)
{
if (((p.x|p.y) >= 0) && (a.z != c.z)) {
a.z += d.z; p.x -= i.x; p.y -= i.y;
}
else if ((p.z >= 0) && (a.x != c.x)) {
a.x += d.x; p.x += i.z; p.z -= i.y;
}
else {
a.y += d.y; p.y += i.z; p.z += i.x;
}
if (isvoxelsolidwrap(a.x, a.y, a.z))
return 0;
cnt--;
}
return 1;
}
result CMuli3DPresentTargetAmigaOS4::Present( const float32 *i_pSource, uint32 i_iFloats )
{
m3ddeviceparameters DeviceParameters = m_pParent->GetDeviceParameters();
// Copy pixels to the image-buffer ---------------------------------------
// Doesn't currently do anything...
fpuTruncate();
// Picasso96 RenderInfo for locking the bitmap
struct RenderInfo ri;
// Lock bitmap for drawing
ULONG lock = IP96->p96LockBitMap( m_pBitMap, (UBYTE*)&ri, sizeof(struct RenderInfo) );
if ( lock )
{
// Pointer to allocated buffer
uint8 *pDestination = (uint8 *)ri.Memory;
// Help pointer to a row in bitmap
uint8 *_pDestination;
for ( uint32 y = 0; y < DeviceParameters.iBackbufferHeight; y++ )
{
// Next row
_pDestination = pDestination + y * ri.BytesPerRow;
for ( uint32 x = 0; x < DeviceParameters.iBackbufferWidth; x++ )
{
//*_pDestination++ = iClamp( (int32)( *i_pSource++ * 255.0f ), 0, 255 ); // r
//*_pDestination++ = iClamp( (int32)( *i_pSource++ * 255.0f ), 0, 255 ); // g
//*_pDestination++ = iClamp( (int32)( *i_pSource++ * 255.0f ), 0, 255 ); // b
// Set r, g and b bytes in our buffer
_pDestination[0] = iClamp( ftol( i_pSource[0] * 255.0f ), 0, 255 ); // r
_pDestination[1] = iClamp( ftol( i_pSource[1] * 255.0f ), 0, 255 ); // g
_pDestination[2] = iClamp( ftol( i_pSource[2] * 255.0f ), 0, 255 ); // b
//*_pDestination++ = (iClamp( ftol( i_pSource[0] * 255.0f ), 0, 255 ) << 16) |
// (iClamp( ftol( i_pSource[1] * 255.0f ), 0, 255 ) << 8) |
// iClamp( ftol( i_pSource[2] * 255.0f ), 0, 255 );
i_pSource += i_iFloats;
_pDestination += 3;
}
}
IP96->p96UnlockBitMap( m_pBitMap, lock );
// Blit bitmap to window
IGraphics->BltBitMapRastPort( m_pBitMap, 0, 0, DeviceParameters.hDeviceWindow->RPort, DeviceParameters.hDeviceWindow->BorderLeft, DeviceParameters.hDeviceWindow->BorderTop, DeviceParameters.iBackbufferWidth, DeviceParameters.iBackbufferHeight, 0xC0);
IGraphics->WaitTOF();
} // lock
// Doesn't currently do anything...
fpuReset();
return s_ok;
}
result CMuli3DPresentTargetWin32::Present( const float32 *i_pSource, uint32 i_iFloats )
{
m3ddeviceparameters DeviceParameters = m_pParent->GetDeviceParameters();
// Check for lost DirectDraw surfaces -------------------------------------
if( m_bDDSurfaceLost )
{
m_pDirectDrawSurfaces[0]->Restore();
if( DeviceParameters.bWindowed )
m_pDirectDrawSurfaces[1]->Restore();
m_bDDSurfaceLost = false;
}
// Lock backbuffer-surface-------------------------------------------------
DDSURFACEDESC2 descSurface;
descSurface.dwSize = sizeof( DDSURFACEDESC2 );
if( FAILED( m_pDirectDrawSurfaces[1]->Lock( 0, &descSurface, DDLOCK_WAIT|DDLOCK_NOSYSLOCK|DDLOCK_WRITEONLY, 0 ) ) )
{
FUNC_FAILING( "CMuli3DPresentTargetWin32::Present: couldn't lock secondary surface.\n" );
return e_unknown;
}
const uint32 iDestBytes = descSurface.ddpfPixelFormat.dwRGBBitCount / 8;
// Copy pixels to the backbuffer-surface ----------------------------------
const uint32 iDestRowJump = descSurface.lPitch - iDestBytes * DeviceParameters.iBackbufferWidth;
uint8 *pDestination = (uint8 *)descSurface.lpSurface;
fpuTruncate();
if( iDestBytes == 2 )
{
// 16-bit
uint32 iHeight = DeviceParameters.iBackbufferHeight;
while( iHeight-- )
{
uint32 iWidth = DeviceParameters.iBackbufferWidth;
while( iWidth-- )
{
const int32 iR = iClamp( ftol( i_pSource[0] * m_i16bitMaxVal[0] ), 0, m_i16bitMaxVal[0] );
const int32 iG = iClamp( ftol( i_pSource[1] * m_i16bitMaxVal[1] ), 0, m_i16bitMaxVal[1] );
const int32 iB = iClamp( ftol( i_pSource[2] * m_i16bitMaxVal[2] ), 0, m_i16bitMaxVal[2] );
i_pSource += i_iFloats;
*((uint16 *)pDestination) = ( iR << m_i16bitShift[0] ) | ( iG << m_i16bitShift[1] ) | ( iB << m_i16bitShift[2] );
pDestination += 2;
}
pDestination += iDestRowJump;
}
}
else
{
// 24- or 32-bit
uint32 iHeight = DeviceParameters.iBackbufferHeight;
while( iHeight-- )
{
uint32 iWidth = DeviceParameters.iBackbufferWidth;
while( iWidth-- )
{
pDestination[0] = iClamp( ftol( i_pSource[2] * 255.0f ), 0, 255 ); // b
pDestination[1] = iClamp( ftol( i_pSource[1] * 255.0f ), 0, 255 ); // g
pDestination[2] = iClamp( ftol( i_pSource[0] * 255.0f ), 0, 255 ); // r
i_pSource += i_iFloats;
pDestination += iDestBytes;
}
pDestination += iDestRowJump;
}
}
fpuReset();
// Unlock backbuffer-surface and surface
m_pDirectDrawSurfaces[1]->Unlock( 0 );
// Present the image to the screen ----------------------------------------
if( DeviceParameters.bWindowed )
{
POINT pntTopLeft = { 0, 0 };
ClientToScreen( DeviceParameters.hDeviceWindow, &pntTopLeft );
RECT rctDestination;
GetClientRect( DeviceParameters.hDeviceWindow, &rctDestination );
OffsetRect( &rctDestination, pntTopLeft.x, pntTopLeft.y );
RECT rctSource;
SetRect( &rctSource, 0, 0, DeviceParameters.iBackbufferWidth, DeviceParameters.iBackbufferHeight );
// Blt secondary to primary surface
if( FAILED( m_pDirectDrawSurfaces[0]->Blt( &rctDestination, m_pDirectDrawSurfaces[1], &rctSource, DDBLT_WAIT, 0 ) ) )
{
m_bDDSurfaceLost = true;
FUNC_FAILING( "CMuli3DPresentTargetWin32::Present: primary surfaces have been lost!\n" );
return e_unknown;
}
}
else
{
if( FAILED( m_pDirectDrawSurfaces[0]->Flip( 0, DDFLIP_WAIT ) ) )
{
m_bDDSurfaceLost = true;
FUNC_FAILING( "CMuli3DPresentTargetWin32::Present: surfaces have been lost!\n" );
return e_unknown;
}
}
return s_ok;
}
