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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <opengl/win/winlayout.hxx>
#include <opengl/win/gdiimpl.hxx>
bool OpenGLGlobalWinGlyphCache::AllocateTexture(WinGlyphDrawElement& rElement, CompatibleDC* dc)
{
assert(rElement.maTexture.get() == nullptr);
assert(dynamic_cast<OpenGLCompatibleDC*>(dc));
OpenGLCompatibleDC* odc = static_cast<OpenGLCompatibleDC*>(dc);
OpenGLCompatibleDC::Texture* texture = new OpenGLCompatibleDC::Texture;
rElement.maTexture.reset(texture);
texture->texture = maPackedTextureAtlas.Reserve(dc->getBitmapWidth(), dc->getBitmapHeight());
if (!texture->texture)
return false;
if (!odc->copyToTexture(*rElement.maTexture))
return false;
return true;
}
void OpenGLGlobalWinGlyphCache::Prune()
{
std::vector<GLuint> aTextureIDs = maPackedTextureAtlas.ReduceTextureNumber(8);
if (!aTextureIDs.empty())
{
for (auto& pWinGlyphCache : maWinGlyphCaches)
static_cast<OpenGLWinGlyphCache*>(pWinGlyphCache)->RemoveTextures(aTextureIDs);
}
}
void OpenGLWinGlyphCache::RemoveTextures(std::vector<GLuint>& rTextureIDs)
{
auto it = maWinTextureCache.begin();
while (it != maWinTextureCache.end())
{
assert(dynamic_cast<OpenGLCompatibleDC::Texture*>(it->second.maTexture.get()));
GLuint nTextureID
= static_cast<OpenGLCompatibleDC::Texture*>(it->second.maTexture.get())->texture.Id();
if (std::find(rTextureIDs.begin(), rTextureIDs.end(), nTextureID) != rTextureIDs.end())
{
it = maWinTextureCache.erase(it);
}
else
{
++it;
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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