/////////////////////////////////////////////////////////////
/// Met à jour les pixels de la texture
///
/// \param Rect : Rectangle à mettre à jour dans la texture
///
////////////////////////////////////////////////////////////
void GLTexture::Update(const CRectangle& Rect)
{
CA_ASSERT(CRectangle(0, 0, m_Size.x, m_Size.y).Intersects(Rect) != INT_OUT, "GLTexture::Update() : rectangle out of bounds");
GLCheck(glBindTexture(GL_TEXTURE_2D, m_Texture));
GLEnum::TPixelFmt TexFmt = GLEnum::Get(m_Format);
GLEnum::TPixelFmt ImgFmt = GLEnum::Get(m_Data.GetFormat());
if (FormatCompressed(m_Data.GetFormat()))
{
#if CA_PLATFORM_DESKTOP
// Format de pixel compressé - on utilise une extension pour uploader les pixels
unsigned long DataSize = Rect.Width() * Rect.Height() * GetBytesPerPixel(m_Data.GetFormat());
if (Rect.Width() == m_Size.x && Rect.Height() == m_Size.y)
{
// Le rectangle source couvre la totalité de l'image : on envoie directement les données
GLRenderer::glCompressedTexSubImage2DARB(GL_TEXTURE_2D, 0, Rect.Left(), Rect.Top(), Rect.Width(), Rect.Height(), ImgFmt.Format, DataSize, m_Data.GetData());
}
else
{
// Le rectangle source ne couvre qu'une partie de l'image : on envoie une sous-image de l'image en mémoire
CImage SubData = m_Data.SubImage(Rect);
GLRenderer::glCompressedTexSubImage2DARB(GL_TEXTURE_2D, 0, Rect.Left(), Rect.Top(), Rect.Width(), Rect.Height(), ImgFmt.Format, DataSize, SubData.GetData());
}
#else
throw NEW_AO CNotImplementedException("GLTexture::Update() : compressed format is not supported\n");
#endif // CA_PLATFORM_DESKTOP
}
else
{
GLint pixelStore = 0;
switch (m_Data.GetFormat())
{
case PixelFormat::L_8: ///< Luminosity 8 bits (1 byte)
pixelStore = 1;
break;
case PixelFormat::AL_88: ///< Alpha and luminosity 16 bits (2 bytes)
case PixelFormat::ARGB_1555: ///< RGB 16 bits 1555 (2 bytes)
case PixelFormat::ARGB_4444: ///< RGB 16 bits 4444 (2 bytes)
case PixelFormat::PVRTC2: ///< PVR texture compression. Each pixel is 2 bits.
pixelStore = 2;
break;
case PixelFormat::RGB_888: ///< RGB 24 bits 888 (3 bytes)
case PixelFormat::RGB_DXT1: ///< S3 DXT1 texture compression (RGB)
//
case PixelFormat::ARGB_8888: ///< ARGB 32 bits 8888 (4 bytes)
case PixelFormat::PVRTC4: ///< PVR texture compression. Each pixel is 4 bits.
case PixelFormat::RGBA_DXT1: ///< S3 DXT1 texture compression (RGBA)
case PixelFormat::RGBA_DXT3: ///< S3 DXT3 texture compression (RGBA)
case PixelFormat::RGBA_DXT5: ///< S3 DXT5 texture compression (RGBA)
pixelStore = 4;
break;
}
GLCheck(glPixelStorei(GL_PACK_ALIGNMENT, pixelStore));
if (!m_HasMipmaps || m_AutoMipmaps)
{
// Pas de mipmap ou génération hardware : on ne met à jour que le premier niveau
if ((Rect.Width() == m_Size.x) && (Rect.Height() == m_Size.y))
{
GLCheck(glTexSubImage2D(GL_TEXTURE_2D, 0,
0, 0, Rect.Width(), Rect.Height(), ImgFmt.Format, ImgFmt.Type, m_Data.GetData()));
}
else
{
CImage SubData = m_Data.SubImage(Rect);
GLCheck(glTexSubImage2D(GL_TEXTURE_2D, 0,
Rect.Left(), Rect.Top(), Rect.Width(), Rect.Height(), ImgFmt.Format, ImgFmt.Type, SubData.GetData()));
}
}
else
{
#if CA_PLATFORM_DESKTOP
// Plusieurs niveaux de mipmapping et génération software : on met à jour tous les niveaux
GLCheck(gluBuild2DMipmaps(GL_TEXTURE_2D, TexFmt.Internal, m_Size.x, m_Size.y, ImgFmt.Format, ImgFmt.Type, m_Data.GetData()));
#else
if ((Rect.Width() == m_Size.x) && (Rect.Height() == m_Size.y))
{
GLCheck(glTexSubImage2D(GL_TEXTURE_2D, 0,
0, 0, Rect.Width(), Rect.Height(), ImgFmt.Format, ImgFmt.Type, m_Data.GetData()));
}
else
{
CImage SubData = m_Data.SubImage(Rect);
GLCheck(glTexSubImage2D(GL_TEXTURE_2D, 0,
Rect.Left(), Rect.Top(), Rect.Width(), Rect.Height(), ImgFmt.Format, ImgFmt.Type, SubData.GetData()));
}
#endif // CA_PLATFORM_DESKTOP
GLCheck(glGenerateMipmap(GL_TEXTURE_2D));
}
}
GLCheck(glBindTexture(GL_TEXTURE_2D, 0));
}
void* CTradeImpl::GetTradeCaptureReports(void* /*handle*/, const Nullable<CDateTime>& /*from*/, const Nullable<CDateTime>& /*to*/, const size_t /*timeoutInMilliseconds*/)
{
throw CNotImplementedException();
}
