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Texture.cpp
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Texture.cpp
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#include "stdafx.h"
#include "Texture.h"
#include "freeimage.h"
RenderDevice *Texture::renderDevice=0;
#define MIN_TEXTURE_SIZE 8
MemTexture* MemTexture::CreateFromFreeImage(FIBITMAP* dib)
{
// check if Textures exceed the maximum texture dimension
int maxTexDim;
HRESULT hrMaxTex = GetRegInt("Player", "MaxTexDimension", &maxTexDim);
if (hrMaxTex != S_OK)
maxTexDim = 0; // default: Don't resize textures
if(maxTexDim <= 0)
maxTexDim = 65536;
const int pictureWidth = FreeImage_GetWidth(dib);
const int pictureHeight = FreeImage_GetHeight(dib);
FIBITMAP* dibResized = dib;
if ((pictureHeight > maxTexDim) || (pictureWidth > maxTexDim))
{
int newWidth = max(min(pictureWidth, maxTexDim), MIN_TEXTURE_SIZE);
int newHeight = max(min(pictureHeight, maxTexDim), MIN_TEXTURE_SIZE);
/*
* The following code tries to maintain the aspect ratio while resizing. This is
* however not really necessary and makes playfield textures more blurry than they
* need to be, so it's disabled for now.
*/
//if (pictureWidth - newWidth > pictureHeight - newHeight)
// newHeight = min(pictureHeight * newWidth / pictureWidth, maxTexDim);
//else
// newWidth = min(pictureWidth * newHeight / pictureHeight, maxTexDim);
dibResized = FreeImage_Rescale(dib, newWidth, newHeight, FILTER_BILINEAR);
}
else if (pictureWidth < MIN_TEXTURE_SIZE || pictureHeight < MIN_TEXTURE_SIZE)
{
// some drivers seem to choke on small (1x1) textures, so be safe by scaling them up
int newWidth = max(pictureWidth, MIN_TEXTURE_SIZE);
int newHeight = max(pictureHeight, MIN_TEXTURE_SIZE);
dibResized = FreeImage_Rescale(dib, newWidth, newHeight, FILTER_BOX);
}
FIBITMAP* dib32 = FreeImage_ConvertTo32Bits(dibResized);
MemTexture* tex = new MemTexture(FreeImage_GetWidth(dib32), FreeImage_GetHeight(dib32));
BYTE *psrc = FreeImage_GetBits(dib32), *pdst = tex->data();
const int pitchdst = FreeImage_GetPitch(dib32), pitchsrc = tex->pitch();
const int height = tex->height();
for (int y = 0; y < height; ++y)
{
memcpy(pdst + (height-y-1)*pitchdst, psrc + y*pitchsrc, 4 * tex->width());
}
FreeImage_Unload(dib32);
if (dibResized != dib) // did we allocate a rescaled copy?
FreeImage_Unload(dibResized);
return tex;
}
BaseTexture* MemTexture::CreateFromFile(const char *szfile)
{
FREE_IMAGE_FORMAT fif = FIF_UNKNOWN;
// check the file signature and deduce its format
fif = FreeImage_GetFileType(szfile, 0);
if(fif == FIF_UNKNOWN) {
// try to guess the file format from the file extension
fif = FreeImage_GetFIFFromFilename(szfile);
}
// check that the plugin has reading capabilities ...
if((fif != FIF_UNKNOWN) && FreeImage_FIFSupportsReading(fif)) {
// ok, let's load the file
FIBITMAP *dib = FreeImage_Load(fif, szfile, 0);
MemTexture* mySurface = MemTexture::CreateFromFreeImage(dib);
FreeImage_Unload(dib);
//if (bitsPerPixel == 24)
// Texture::SetOpaque(mySurface);
return mySurface;
}
else
return NULL;
}
// from the FreeImage FAQ page
static FIBITMAP* HBitmapToFreeImage(HBITMAP hbmp)
{
BITMAP bm;
GetObject(hbmp, sizeof(BITMAP), &bm);
FIBITMAP* dib = FreeImage_Allocate(bm.bmWidth, bm.bmHeight, bm.bmBitsPixel);
// The GetDIBits function clears the biClrUsed and biClrImportant BITMAPINFO members (dont't know why)
// So we save these infos below. This is needed for palettized images only.
int nColors = FreeImage_GetColorsUsed(dib);
HDC dc = GetDC(NULL);
int Success = GetDIBits(dc, hbmp, 0, FreeImage_GetHeight(dib),
FreeImage_GetBits(dib), FreeImage_GetInfo(dib), DIB_RGB_COLORS);
ReleaseDC(NULL, dc);
// restore BITMAPINFO members
FreeImage_GetInfoHeader(dib)->biClrUsed = nColors;
FreeImage_GetInfoHeader(dib)->biClrImportant = nColors;
return dib;
}
MemTexture* MemTexture::CreateFromHBitmap(HBITMAP hbm)
{
FIBITMAP *dib = HBitmapToFreeImage(hbm);
BaseTexture* pdds = MemTexture::CreateFromFreeImage(dib);
FreeImage_Unload(dib);
return pdds;
}
////////////////////////////////////////////////////////////////////////////////
Texture::Texture()
{
m_pdsBuffer = NULL;
m_pdsBufferColorKey = NULL;
m_pdsBufferBackdrop = NULL;
m_rgbTransparent = RGB(255,255,255);
m_hbmGDIVersion = NULL;
m_ppb = NULL;
}
Texture::~Texture()
{
FreeStuff();
}
void Texture::SetRenderDevice( RenderDevice *_device )
{
renderDevice = _device;
}
void Texture::Release()
{
}
void Texture::Set(DWORD textureChannel)
{
g_pplayer->m_pin3d.SetBaseTexture( textureChannel, m_pdsBufferColorKey);
}
void Texture::SetBackDrop( DWORD textureChannel )
{
g_pplayer->m_pin3d.SetBaseTexture( textureChannel, m_pdsBufferBackdrop ? m_pdsBufferBackdrop : NULL);
}
void Texture::Unset( DWORD textureChannel )
{
g_pplayer->m_pin3d.SetBaseTexture(textureChannel, NULL);
}
HRESULT Texture::SaveToStream(IStream *pstream, PinTable *pt)
{
BiffWriter bw(pstream, NULL, NULL);
bw.WriteString(FID(NAME), m_szName);
bw.WriteString(FID(INME), m_szInternalName);
bw.WriteString(FID(PATH), m_szPath);
bw.WriteInt(FID(WDTH), m_width);
bw.WriteInt(FID(HGHT), m_height);
bw.WriteInt(FID(TRNS), m_rgbTransparent);
if (!m_ppb)
{
bw.WriteTag(FID(BITS));
// 32-bit picture
LZWWriter lzwwriter(pstream, (int *)m_pdsBuffer->data(), m_width*4, m_height, m_pdsBuffer->pitch());
lzwwriter.CompressBits(8+1);
}
else // JPEG (or other binary format)
{
const int linkid = pt->GetImageLink(this);
if (linkid == 0)
{
bw.WriteTag(FID(JPEG));
m_ppb->SaveToStream(pstream);
}
else
{
bw.WriteInt(FID(LINK), linkid);
}
}
bw.WriteTag(FID(ENDB));
return S_OK;
}
HRESULT Texture::LoadFromStream(IStream *pstream, int version, PinTable *pt)
{
BiffReader br(pstream, this, pt, version, NULL, NULL);
br.Load();
return ((m_pdsBuffer != NULL) ? S_OK : E_FAIL);
}
bool Texture::LoadFromMemory(BYTE *data, DWORD size)
{
FIMEMORY *hmem = FreeImage_OpenMemory(data, size);
FREE_IMAGE_FORMAT fif = FreeImage_GetFileTypeFromMemory(hmem, 0);
FIBITMAP *dib = FreeImage_LoadFromMemory(fif, hmem, 0);
FreeImage_CloseMemory(hmem);
m_pdsBuffer = MemTexture::CreateFromFreeImage(dib);
FreeImage_Unload(dib);
SetSizeFrom(m_pdsBuffer);
return true;
}
BOOL Texture::LoadToken(int id, BiffReader *pbr)
{
if (id == FID(NAME))
{
pbr->GetString(m_szName);
}
else if (id == FID(INME))
{
pbr->GetString(m_szInternalName);
}
else if (id == FID(PATH))
{
pbr->GetString(m_szPath);
}
else if (id == FID(TRNS))
{
pbr->GetInt(&m_rgbTransparent);
}
else if (id == FID(WDTH))
{
pbr->GetInt(&m_width);
}
else if (id == FID(HGHT))
{
pbr->GetInt(&m_height);
}
else if (id == FID(BITS))
{
m_pdsBuffer = new MemTexture(m_width, m_height);
// 32-bit picture
LZWReader lzwreader(pbr->m_pistream, (int *)m_pdsBuffer->data(), m_width*4, m_height, m_pdsBuffer->pitch());
lzwreader.Decoder();
const int lpitch = m_pdsBuffer->pitch();
// Assume our 32 bit color structure
// Find out if all alpha values are zero
BYTE * const pch = (BYTE *)m_pdsBuffer->data();
bool allAlphaZero = true;
for (int i=0;i<m_height;i++)
{
for (int l=0;l<m_width;l++)
{
if (pch[i*lpitch + 4*l + 3] != 0)
{
allAlphaZero = false;
goto endAlphaCheck;
}
}
}
endAlphaCheck:
// all alpha values are 0: set them all to 0xff
if (allAlphaZero)
for (int i=0;i<m_height;i++)
for (int l=0;l<m_width;l++)
pch[i*lpitch + 4*l + 3] = 0xff;
}
else if (id == FID(JPEG))
{
m_ppb = new PinBinary();
m_ppb->LoadFromStream(pbr->m_pistream, pbr->m_version);
// m_ppb->m_szPath has the original filename
// m_ppb->m_pdata() is the buffer
// m_ppb->m_cdata() is the filesize
return LoadFromMemory((BYTE*)m_ppb->m_pdata, m_ppb->m_cdata);
}
else if (id == FID(LINK))
{
int linkid;
PinTable * const pt = (PinTable *)pbr->m_pdata;
pbr->GetInt(&linkid);
m_ppb = pt->GetImageLinkBinary(linkid);
return LoadFromMemory((BYTE*)m_ppb->m_pdata, m_ppb->m_cdata);
}
return fTrue;
}
void Texture::SetTransparentColor(const COLORREF color)
{
m_fTransparent = fFalse;
if (m_rgbTransparent != color)
{
m_rgbTransparent = color;
delete m_pdsBufferColorKey; m_pdsBufferColorKey = NULL;
delete m_pdsBufferBackdrop; m_pdsBufferBackdrop = NULL;
}
}
void Texture::CreateAlphaChannel()
{
if (!m_pdsBufferColorKey)
{
// copy buffer into new color key buffer
m_pdsBufferColorKey = new MemTexture(*m_pdsBuffer);
m_fTransparent = Texture::SetAlpha(m_pdsBufferColorKey, m_rgbTransparent);
if (!m_fTransparent)
m_rgbTransparent = NOTRANSCOLOR; // set to magic color to disable future checking
}
}
void Texture::EnsureBackdrop(const COLORREF color)
{
if (!m_pdsBufferBackdrop || color != m_rgbBackdropCur)
{
if (!m_pdsBufferBackdrop)
{
m_pdsBufferBackdrop = new MemTexture;
}
*m_pdsBufferBackdrop = *m_pdsBuffer; // copy texture
SetOpaqueBackdrop(m_pdsBufferBackdrop, m_rgbTransparent, color);
m_rgbBackdropCur = color;
}
}
void Texture::FreeStuff()
{
delete m_pdsBuffer; m_pdsBuffer = NULL;
delete m_pdsBufferColorKey; m_pdsBufferColorKey = NULL;
delete m_pdsBufferBackdrop; m_pdsBufferBackdrop = NULL;
if (m_hbmGDIVersion)
{
DeleteObject(m_hbmGDIVersion);
m_hbmGDIVersion = NULL;
}
if (m_ppb)
{
delete m_ppb;
m_ppb = NULL;
}
}
void Texture::EnsureHBitmap()
{
if (!m_hbmGDIVersion)
{
CreateGDIVersion();
}
}
void Texture::CreateGDIVersion()
{
HDC hdcScreen = GetDC(NULL);
m_hbmGDIVersion = CreateCompatibleBitmap(hdcScreen, m_width, m_height);
HDC hdcNew = CreateCompatibleDC(hdcScreen);
HBITMAP hbmOld = (HBITMAP)SelectObject(hdcNew, m_hbmGDIVersion);
BITMAPINFO bmi;
ZeroMemory(&bmi, sizeof(bmi));
bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmi.bmiHeader.biWidth = m_width;
bmi.bmiHeader.biHeight = -m_height;
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biBitCount = 32;
bmi.bmiHeader.biCompression = BI_RGB;
bmi.bmiHeader.biSizeImage = 0;
SetStretchBltMode(hdcNew, COLORONCOLOR);
StretchDIBits(hdcNew,
0, 0, m_width, m_height,
0, 0, m_width, m_height,
m_pdsBuffer->data(), &bmi, DIB_RGB_COLORS, SRCCOPY);
SelectObject(hdcNew, hbmOld);
DeleteDC(hdcNew);
ReleaseDC(NULL,hdcScreen);
}
void Texture::GetTextureDC(HDC *pdc)
{
EnsureHBitmap();
*pdc = CreateCompatibleDC(NULL);
m_oldHBM = (HBITMAP)SelectObject(*pdc, m_hbmGDIVersion);
}
void Texture::ReleaseTextureDC(HDC dc)
{
SelectObject(dc, m_oldHBM);
DeleteDC(dc);
}
void Texture::CreateFromResource(const int id, int * const pwidth, int * const pheight)
{
HBITMAP hbm = (HBITMAP)LoadImage(g_hinst, MAKEINTRESOURCE(id), IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION);
if (hbm == NULL)
{
m_pdsBufferColorKey=NULL;
return;
}
m_pdsBufferColorKey = CreateFromHBitmap(hbm, pwidth, pheight);
}
BaseTexture* Texture::CreateFromHBitmap(HBITMAP hbm, int * const pwidth, int * const pheight)
{
BaseTexture* pdds = MemTexture::CreateFromHBitmap(hbm);
SetSizeFrom(pdds);
if (pwidth) *pwidth = pdds->width();
if (pheight) *pheight = pdds->height();
return pdds;
}
void Texture::CreateTextureOffscreen(const int width, const int height)
{
m_pdsBufferColorKey = new MemTexture( width, height );
SetSizeFrom( m_pdsBufferColorKey );
}
void Texture::SetOpaque(BaseTexture* pdds)
{
const int width = pdds->width();
const int height = pdds->height();
const int pitch = pdds->pitch();
// Assume our 32 bit color structure
BYTE *pch = pdds->data();
for (int i=0;i<height;i++)
{
for (int l=0;l<width;l++)
{
pch[4*l + 3] = 0xff;
}
pch += pitch;
}
}
void Texture::SetOpaqueBackdrop(BaseTexture* pdds, const COLORREF rgbTransparent, const COLORREF rgbBackdrop)
{
const int width = pdds->width();
const int height = pdds->height();
const int lpitch = pdds->pitch();
const D3DCOLOR rgbBd = COLORREF_to_D3DCOLOR(rgbBackdrop);
// Assume our 32 bit color structure
BYTE *pch = pdds->data();
for (int i=0;i<height;i++)
{
for (int l=0;l<width;l++)
{
if ((*(unsigned int *)pch & 0xffffff) != rgbTransparent)
{
pch[3] = 0xff;
}
else
{
*(unsigned int *)pch = rgbBd;
}
pch += 4;
}
pch += lpitch-(width*4);
}
}
BOOL Texture::SetAlpha(const COLORREF rgbTransparent)
{
if (!m_pdsBufferColorKey)
return FALSE;
else
return Texture::SetAlpha(m_pdsBufferColorKey, rgbTransparent);
}
BOOL Texture::SetAlpha(BaseTexture* pdds, const COLORREF rgbTransparent)
{
// Set alpha of each pixel
const int width = pdds->width();
const int height = pdds->height();
BOOL fTransparent = fFalse;
const int pitch = pdds->pitch();
// COLORREF order: ABGR (msb to lsb)
// D3DCOLOR order: ARGB (msb to lsb)
const D3DCOLOR bgrTransparent = COLORREF_to_D3DCOLOR(rgbTransparent);
// check if image has its own alpha channel
bool hasAlphaChannel = false;
BYTE *pch = pdds->data();
for (int i=0; i<height; i++)
{
for (int l=0; l<width; l++)
{
unsigned alpha = ((*(D3DCOLOR*)pch) & 0xff000000) >> 24;
if (alpha < 255)
{
hasAlphaChannel = true;
goto AlphaCheckDone;
}
pch += 4;
}
pch += pitch-(width*4);
}
AlphaCheckDone:
if (hasAlphaChannel)
fTransparent = true;
if (rgbTransparent != NOTRANSCOLOR)
{
pch = pdds->data();
for (int i=0;i<height;i++)
{
for (int l=0;l<width;l++)
{
const D3DCOLOR tc = (*(D3DCOLOR *)pch) | 0xff000000; //set to opaque
if (tc == bgrTransparent )
{
*(unsigned int *)pch = 0x00000000; // set transparent colorkey to black and alpha transparent
fTransparent = fTrue; // colorkey is true
}
else if (!hasAlphaChannel) // if there is no alpha-channel info in the image, set to opaque
*(D3DCOLOR*)pch = tc;
pch += 4;
}
pch += pitch-(width*4);
}
}
return fTransparent;
}
static const int rgfilterwindow[7][7] =
{
1, 4, 8, 10, 8, 4, 1,
4, 12, 25, 29, 25, 12, 4,
8, 25, 49, 58, 49, 25, 8,
10, 29, 58, 67, 58, 29, 10,
8, 25, 49, 58, 49, 25, 8,
4, 12, 25, 29, 25, 12, 4,
1, 4, 8, 10, 8, 4, 1
};
void Texture::Blur(BaseTexture* pdds, const BYTE * const pbits, const int shadwidth, const int shadheight)
{
if (!pbits) return; // found this pointer to be NULL after some graphics errors
const int width = pdds->width();
const int height = pdds->height();
const int pitch = pdds->pitch();
/* int window[7][7]; // custom filter kernel
for (int i=0;i<4;i++)
{
window[0][i] = i+1;
window[0][6-i] = i+1;
window[i][0] = i+1;
window[6-i][0] = i+1;
} */
int totalwindow = 0;
for (int i=0;i<7;i++)
{
for (int l=0;l<7;l++)
{
//window[i][l] = window[0][l] * window[i][0];
totalwindow += rgfilterwindow[i][l];
}
}
// Gaussian Blur the sharp shadows
const int pitchSharp = 256*3;
BYTE *pc = pdds->data();
for (int i=0;i<shadheight;i++)
{
for (int l=0;l<shadwidth;l++)
{
int value = 0;
int totalvalue = totalwindow;
for (int n=0;n<7;n++)
{
const int y = i+n-3;
if(/*y>=0 &&*/ (unsigned int)y<(unsigned int)shadheight) // unsigned arithmetic trick includes check for >= zero
{
const BYTE *const py = pbits + pitchSharp*y;
for (int m=0;m<7;m++)
{
const int x = l+m-3;
if (/*x>=0 &&*/ (unsigned int)x<(unsigned int)shadwidth) // dto. //!! opt.
{
value += (int)(*(py + x*3)) * rgfilterwindow[m][n];
}
else
{
totalvalue -= rgfilterwindow[m][n];
}
}
}
else
{
for (int m=0;m<7;m++)
{
const int x = l+m-3;
if (/*x<0 ||*/ (unsigned int)x>=(unsigned int)shadwidth) // dto.
{
totalvalue -= rgfilterwindow[m][n];
}
}
}
}
value /= totalvalue; //totalwindow;
const unsigned int valueu = 127 + (value>>1);
*((unsigned int*)pc) = valueu | (valueu<<8) | (valueu<<16) | (valueu<<24); // all R,G,B,A get same value
pc += 4;
}
pc += pitch - shadwidth*4;
}
}