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disable square-texture adjustment, if over maxsize, scale down to maxsize

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This commit is contained in:
georges 2000-12-04 04:00:17 +00:00
parent b5d6b4506e
commit c806ceddf6
1 changed files with 67 additions and 42 deletions
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103
panda/src/dxgsg/dxTextureContext.cxx
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@ -16,6 +16,7 @@
#include "config_dxgsg.h"
#include "dxGraphicsStateGuardian.h"
#include <assert.h>
#include "pnmImage.h"
//#define FORCE_USE_OF_16BIT_TEXFMTS
@ -137,7 +138,7 @@ CreateTexture( HDC hdc, LPDIRECT3DDEVICE7 pd3dDevice, int cNumTexPixFmts, LPDDPI
HRESULT hr;
PixelBuffer *pbuf = _texture->_pbuffer;
BOOL bSizeExpanded = FALSE;
PNMImage *pnmi=NULL;
int cNumAlphaBits; // number of alpha bits in texture pixfmt
DDPIXELFORMAT *pDesiredPixFmt;
@ -260,37 +261,68 @@ CreateTexture( HDC hdc, LPDIRECT3DDEVICE7 pd3dDevice, int cNumTexPixFmts, LPDDPI
ddsd.dwWidth = dwOrigWidth;
ddsd.dwHeight = dwOrigHeight;
#define ISPOW2(X) (((X) & ((X)-1))==0)
if((dwOrigWidth>ddDesc.dwMaxTextureWidth)||(dwOrigHeight>ddDesc.dwMaxTextureHeight)) {
#ifdef _DEBUG
dxgsg_cat.error() << "WARNING: " <<_tex->get_name() << ": Image size exceeds max texture dimensions of (" << ddDesc.dwMaxTextureWidth << "," << ddDesc.dwMaxTextureHeight << ") !!\n"
<< "Scaling "<< _tex->get_name() << " ("<< dwOrigWidth<<"," <<dwOrigHeight << ") => ("<< ddsd.dwWidth<<"," << ddsd.dwHeight << ")\n";
#endif
if(dwOrigWidth>ddDesc.dwMaxTextureWidth)
ddsd.dwWidth=ddDesc.dwMaxTextureWidth;
if(dwOrigHeight>ddDesc.dwMaxTextureHeight)
ddsd.dwHeight=ddDesc.dwMaxTextureHeight;
PNMImage pnmi_src;
pnmi = new PNMImage(ddsd.dwWidth, ddsd.dwHeight, cNumColorChannels);
pbuf->store(pnmi_src); // check for ret errors?
pnmi->quick_filter_from(pnmi_src,0,0);
pbuf->load(*pnmi);
dwOrigWidth = (DWORD)pbuf->get_xsize();
dwOrigHeight = (DWORD)pbuf->get_ysize();
delete pnmi;
pnmi=NULL;
}
#define ISPOW2(X) (((X) & ((X)-1))==0)
if(!ISPOW2(ddsd.dwWidth) || !ISPOW2(ddsd.dwHeight)) {
dxgsg_cat.error() << "ERROR: Image size is not a power of 2 for " << _tex->get_name() << "!!!!! \n";
#define EXPAND_TEXSIZE_TO_POW2
#ifndef EXPAND_TEXSIZE_TO_POW2
#ifdef _DEBUG
dxgsg_cat.error() << "ERROR: Image dimensions are not a power of 2 for " << _tex->get_name() << "!!!!! \n";
#ifdef _DEBUG
exit(1); // want to catch badtexsize errors
#else
#else
goto error_exit;
#endif
#else
// Expand width and height, if the driver requires it
if( ddDesc.dpcTriCaps.dwTextureCaps & D3DPTEXTURECAPS_POW2 ) {
// round up to next pow of 2
for( ddsd.dwWidth=1; dwOrigWidth>ddsd.dwWidth; ddsd.dwWidth<<=1 );
for( ddsd.dwHeight=1; dwOrigHeight>ddsd.dwHeight; ddsd.dwHeight<<=1 );
bSizeExpanded = TRUE;
dxgsg_cat.debug() << "Expanding texture to power of 2 size (extra space will be black)\n";
}
#endif
#endif
}
if( ddDesc.dpcTriCaps.dwTextureCaps & D3DPTEXTURECAPS_SQUAREONLY ) {
// expand smaller dimension to equal the larger
if( ddsd.dwWidth > ddsd.dwHeight ) ddsd.dwHeight = ddsd.dwWidth;
else ddsd.dwWidth = ddsd.dwHeight;
bSizeExpanded = (ddsd.dwWidth!=ddsd.dwHeight);
if(bSizeExpanded)
dxgsg_cat.debug() << "Forcing texture to square size (extra space will be black)\n";
#if 0 //riva128 seems to handle non-sq fine. is it wasting mem to do this? do I care or should
// I scale to save mem? what about other cards (v-1?)
if( (ddsd.dwWidth != ddsd.dwHeight) && (ddDesc.dpcTriCaps.dwTextureCaps & D3DPTEXTURECAPS_SQUAREONLY )) {
// assume pow2 textures. sum exponents, divide by 2 rounding down to get sq size
int i,width_exp,height_exp;
for(i=ddsd.dwWidth,width_exp=0;i>1;width_exp++,i>>=1);
for(i=ddsd.dwHeight,height_exp=0;i>1;height_exp++,i>>=1);
ddsd.dwHeight = ddsd.dwWidth = 1<<((width_exp+height_exp)>>1);
#ifdef _DEBUG
dxgsg_cat.debug() << "Scaling "<< _tex->get_name() << " ("<< dwOrigWidth<<"," <<dwOrigHeight << ") => ("<< ddsd.dwWidth<<"," << ddsd.dwHeight << ") to meet HW square texture reqmt\n";
#endif
// check for errors
PNMImage pnmi_src;
pnmi = new PNMImage(ddsd.dwWidth, ddsd.dwHeight, cNumColorChannels);
pbuf->store(pnmi_src);
pnmi->quick_filter_from(pnmi_src,0,0);
pbuf->load(*pnmi);
dwOrigWidth = (DWORD)pbuf->get_xsize();
dwOrigHeight = (DWORD)pbuf->get_ysize();
}
#endif
int i;
@ -310,7 +342,7 @@ CreateTexture( HDC hdc, LPDIRECT3DDEVICE7 pd3dDevice, int cNumTexPixFmts, LPDDPI
LPDDPIXELFORMAT pCurPixFmt;
char *szErrorMsg;
szErrorMsg = "CreateTexture failed: couldn't find compatible Tex DDPIXELFORMAT! \n";
szErrorMsg = "CreateTexture failed: couldn't find compatible Tex DDPIXELFORMAT!\n";
dxgsg_cat.spam() << "CreateTexture handling bitdepth: " << bpp << " alphabits: " << cNumAlphaBits << "\n";
@ -516,18 +548,6 @@ CreateTexture( HDC hdc, LPDIRECT3DDEVICE7 pd3dDevice, int cNumTexPixFmts, LPDDPI
goto error_exit;
}
if(bSizeExpanded) {
// init to black
DDBLTFX bltfx;
ZeroMemory(&bltfx,sizeof(bltfx));
bltfx.dwSize = sizeof(bltfx);
bltfx.dwFillColor=0;
if( FAILED( hr = _surface->Blt(NULL,NULL,NULL,DDBLT_COLORFILL | DDBLT_WAIT,&bltfx))) {
dxgsg_cat.error() << "CreateTexture failed: _surface->Blt() failed! hr = " << ConvD3DErrorToString(hr) << "\n";
}
}
// Create a new surface for the texture
if( FAILED( hr = _surface->Lock( NULL, &ddsd, DDLOCK_WAIT, NULL ))) {
dxgsg_cat.error() << "CreateTexture failed: _surface->Lock() failed! hr = " << ConvD3DErrorToString(hr) << "\n";
goto error_exit;
@ -541,7 +561,7 @@ CreateTexture( HDC hdc, LPDIRECT3DDEVICE7 pd3dDevice, int cNumTexPixFmts, LPDDPI
DWORD x,y,dwPixel;
#ifdef _DEBUG
dxgsg_cat.debug() << "CreateTexture executing conversion " << ConvNameStrs[ConvNeeded] << "\n";
dxgsg_cat.debug() << "CreateTexture: "<< _tex->get_name() <<" converted " << ConvNameStrs[ConvNeeded] << " \n";
#endif
switch(ConvNeeded) {
@ -814,6 +834,8 @@ CreateTexture( HDC hdc, LPDIRECT3DDEVICE7 pd3dDevice, int cNumTexPixFmts, LPDDPI
// Done with DDraw
pDD->Release();
if(pnmi!=NULL)
delete pnmi;
// Return the newly created texture
return _surface;
@ -827,6 +849,9 @@ CreateTexture( HDC hdc, LPDIRECT3DDEVICE7 pd3dDevice, int cNumTexPixFmts, LPDDPI
_surface = NULL;
}
if(pnmi!=NULL)
delete pnmi;
return NULL;
}