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/*
* This source file is part of libRocket, the HTML/CSS Interface Middleware
*
* For the latest information, see http://www.librocket.com
*
* Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
#include "precompiled.h"
#include "TextureResource.h"
#include "FontFaceHandle.h"
#include "TextureDatabase.h"
#include "../../Include/Rocket/Core.h"
namespace Rocket {
namespace Core {
TextureResource::TextureResource()
{
}
TextureResource::~TextureResource()
{
TextureDatabase::RemoveTexture(this);
}
// Attempts to load a texture from the application into the resource.
bool TextureResource::Load(const String& _source)
{
Release();
source = _source;
return true;
}
// Returns the resource's underlying texture.
TextureHandle TextureResource::GetHandle(RenderInterface* render_interface) const
{
TextureDataMap::iterator texture_iterator = texture_data.find(render_interface);
if (texture_iterator == texture_data.end())
{
Load(render_interface);
texture_iterator = texture_data.find(render_interface);
}
return texture_iterator->second.first;
}
// Returns the dimensions of the resource's texture.
const Vector2i& TextureResource::GetDimensions(RenderInterface* render_interface) const
{
TextureDataMap::iterator texture_iterator = texture_data.find(render_interface);
if (texture_iterator == texture_data.end())
{
Load(render_interface);
texture_iterator = texture_data.find(render_interface);
}
return texture_iterator->second.second;
}
// Returns the resource's source.
const String& TextureResource::GetSource() const
{
return source;
}
// Releases the texture's handle.
void TextureResource::Release(RenderInterface* render_interface)
{
if (render_interface == NULL)
{
for (TextureDataMap::iterator texture_iterator = texture_data.begin(); texture_iterator != texture_data.end(); ++texture_iterator)
{
TextureHandle handle = texture_iterator->second.first;
if (handle)
texture_iterator->first->ReleaseTexture(handle);
}
texture_data.clear();
}
else
{
TextureDataMap::iterator texture_iterator = texture_data.find(render_interface);
if (texture_iterator == texture_data.end())
return;
TextureHandle handle = texture_iterator->second.first;
if (handle)
texture_iterator->first->ReleaseTexture(handle);
texture_data.erase(render_interface);
}
}
// Attempts to load the texture from the source.
bool TextureResource::Load(RenderInterface* render_interface) const
{
// Check for special loader tokens.
if (!source.Empty() &&
source[0] == '?')
{
Vector2i dimensions;
bool delete_data = false;
const byte* data = NULL;
// Find the generation protocol and generate the data accordingly.
String protocol = source.Substring(1, source.Find("::") - 1);
if (protocol == "font")
{
// The requested texture is a font layer.
delete_data = true;
FontFaceHandle* handle;
FontEffect* layer_id;
int texture_id;
if (sscanf(source.CString(), "?font::%p/%p/%d", &handle, &layer_id, &texture_id) == 3)
{
handle->GenerateLayerTexture(data,
dimensions,
layer_id,
texture_id);
}
}
// If texture data was generated, great! Otherwise, fallback to the LoadTexture() code and
// hope the client knows what the hell to do with the question mark in their file name.
if (data != NULL)
{
TextureHandle handle;
bool success = render_interface->GenerateTexture(handle, data, dimensions);
if (delete_data)
delete[] data;
if (success)
{
texture_data[render_interface] = TextureData(handle, dimensions);
return true;
}
else
{
Log::Message(Log::LT_WARNING, "Failed to generate internal texture %s.", source.CString());
texture_data[render_interface] = TextureData(0, Vector2i(0, 0));
return false;
}
}
}
TextureHandle handle;
Vector2i dimensions;
if (!render_interface->LoadTexture(handle, dimensions, source))
{
Log::Message(Log::LT_WARNING, "Failed to load texture from %s.", source.CString());
texture_data[render_interface] = TextureData(0, Vector2i(0, 0));
return false;
}
texture_data[render_interface] = TextureData(handle, dimensions);
return true;
}
void TextureResource::OnReferenceDeactivate()
{
Release();
delete this;
}
}
}
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