HBITMAP TgaLoad (unsigned char *pauchData)
{
//
// Load the image
//
int nWidth, nHeight;
D3DCOLOR *pData = TgaLoad (pauchData, &nWidth, &nHeight);
if (pData == NULL)
return NULL;
//
// Initialize a DIB
//
BITMAPINFOHEADER BMI;
BMI .biSize = sizeof (BITMAPINFOHEADER);
BMI .biWidth = nWidth;
BMI .biHeight = nHeight;
BMI .biPlanes = 1;
BMI .biBitCount = 32;
BMI .biCompression = BI_RGB;
BMI .biSizeImage = 0;
BMI .biXPelsPerMeter = 0;
BMI .biYPelsPerMeter = 0;
BMI .biClrUsed = 0;
BMI .biClrImportant = 0;
//
// Create DIB section in shared memory
//
COLORREF *pDstBits;
CClientDC dc (::GetDesktopWindow ());
HBITMAP hbm = ::CreateDIBSection (dc, (BITMAPINFO *)&BMI,
DIB_RGB_COLORS, (void **) &pDstBits, 0, 0l);
if (hbm == NULL)
return NULL;
//
// Convert
//
for (int i = 0; i < nWidth * nHeight; i++)
{
pDstBits [i] = RGB (
RGBA_GETRED (pData [i]),
RGBA_GETGREEN (pData [i]),
RGBA_GETBLUE (pData [i]));
}
delete [] pData;
return hbm;
}
D3DCOLOR *TgaLoad (UINT nID, int *pnWidth, int *pnHeight)
{
//
// Find the template
//
HRSRC hRsrc = FindResource (_Module .GetResourceInstance (),
MAKEINTRESOURCE (nID), _T ("TGA_INCLUDE"));
if (hRsrc == NULL)
return NULL;
//
// Write the resource
//
DWORD dwSize = ::SizeofResource (_Module .GetResourceInstance (), hRsrc);
HGLOBAL hSource = ::LoadResource (_Module .GetResourceInstance (), hRsrc);
LPVOID pSource = ::LockResource (hSource);
D3DCOLOR *pTga = TgaLoad ((unsigned char *) pSource, pnWidth, pnHeight);
UnlockResource (hSource);
::FreeResource (hSource);
return pTga;
}
GLuint LoadCubeTexture(const char* baseName)
{
TgaImage img;
std::string base(baseName);
GLuint texture;
glVerify(glActiveTexture(GL_TEXTURE0));
glVerify(glEnable(GL_TEXTURE_CUBE_MAP));
glVerify(glGenTextures(1, &texture));
glVerify(glBindTexture(GL_TEXTURE_CUBE_MAP, texture));
glVerify(glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_GENERATE_MIPMAP, GL_TRUE));
glVerify(glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
glVerify(glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR));
glVerify(glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
glVerify(glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
glVerify(glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE));
if (TgaLoad((base + "_bk.tga").c_str(), img))
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, GL_RGBA, img.m_width, img.m_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, img.m_data);
if (TgaLoad((base + "_ft.tga").c_str(), img))
glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, GL_RGBA, img.m_width, img.m_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, img.m_data);
if (TgaLoad((base + "_lf.tga").c_str(), img))
glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, GL_RGBA, img.m_width, img.m_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, img.m_data);
if (TgaLoad((base + "_rt.tga").c_str(), img))
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, GL_RGBA, img.m_width, img.m_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, img.m_data);
if (TgaLoad((base + "_dn.tga").c_str(), img))
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, GL_RGBA, img.m_width, img.m_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, img.m_data);
if (TgaLoad((base + "_up.tga").c_str(), img))
glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 0, GL_RGBA, img.m_width, img.m_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, img.m_data);
//...
glVerify(glDisable(GL_TEXTURE_CUBE_MAP));
return texture;
}
