/*!***************************************************************************
@Function PVRTPFXOnLoadTexture
@Input TextureName
@Output uiHandle
@Output uiFlags
@Return EPVRTError PVR_SUCCESS on success.
@Description Callback function on texture load.
*****************************************************************************/
EPVRTError OGLES3MagicLantern::PVRTPFXOnLoadTexture(const CPVRTStringHash& TextureName, GLuint& uiHandle, unsigned int& uiFlags)
{
/*
Because we have multiple effects being loaded yet the textures remain the same we can
efficiently cache texture IDs and only load a texture once but assign it to
multiple effects.
*/
// Check if the texture already exists in the map
if(m_TextureCache.Exists(TextureName))
{
const STextureData& TexData = m_TextureCache[TextureName];
uiHandle = TexData.uiHandle;
uiFlags = TexData.uiFlags;
return PVR_SUCCESS;
}
// Texture is not loaded. Load and add to the map.
PVRTextureHeaderV3 sHeader;
if(PVRTTextureLoadFromPVR(TextureName.c_str(), &uiHandle, &sHeader) != PVR_SUCCESS)
return PVR_FAIL;
uiFlags = 0;
if(sHeader.u32NumFaces == 6)
uiFlags |= PVRTEX_CUBEMAP;
STextureData& TexData = m_TextureCache[TextureName];
TexData.uiFlags = uiFlags;
TexData.uiHandle = uiHandle;
return PVR_SUCCESS;
}
/*!***************************************************************************
@Function PVRTPFXOnLoadTexture
@Input TextureName
@Output uiHandle
@Output uiFlags
@Return EPVRTError PVR_SUCCESS on success.
@Description Callback for texture load.
*****************************************************************************/
EPVRTError OGLES3IntroducingPFX::PVRTPFXOnLoadTexture(const CPVRTStringHash& TextureName, GLuint& uiHandle, unsigned int& uiFlags)
{
/*
This is an optional callback function for PVRTPFXEffect and can be used to automate
the texture loading process.
If multiple effects are to be loaded and they share textures it would be
prudent to have a caching system in place so texture memory is not wasted.
Please see OGLES3MagicLantern for an example of this.
*/
if(PVRTTextureLoadFromPVR(TextureName.String().c_str(), &uiHandle) != PVR_SUCCESS)
return PVR_FAIL;
return PVR_SUCCESS;
}
/*!***********************************************************************
@Function !=
@Input _Str A string to compare with
@Returns True if they don't match
@Description != Operator
*************************************************************************/
bool CPVRTStringHash::operator!=(const CPVRTStringHash& _Str) const
{
return (m_Hash != _Str.Hash());
}
/*!***************************************************************************
@Function PVRTPFXOnLoadTexture
@Input TextureName
@Output uiHandle
@Output uiFlags
@Return EPVRTError PVR_SUCCESS on success.
@Description Callback for texture load.
*****************************************************************************/
EPVRTError OGLES2MaximumIntensityBlend::PVRTPFXOnLoadTexture(const CPVRTStringHash& TextureName, GLuint& uiHandle, unsigned int& uiFlags)
{
return PVRTTextureLoadFromPVR(TextureName.String().c_str(), &uiHandle);
}
