tibia-client/src/framework/graphics/coordsbuffer.cpp

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/*
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* Copyright (c) 2010-2017 OTClient <https://github.com/edubart/otclient>
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*
* 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 "coordsbuffer.h"
#include "graphics.h"
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CoordsBuffer::CoordsBuffer()
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{
m_hardwareCacheMode = HardwareBuffer::DynamicDraw;
m_hardwareVertexArray = nullptr;
m_hardwareTextureCoordArray = nullptr;
m_hardwareCached = false;
m_hardwareCaching = false;
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}
CoordsBuffer::~CoordsBuffer()
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{
if(m_hardwareVertexArray)
delete m_hardwareVertexArray;
if(m_hardwareTextureCoordArray)
delete m_hardwareTextureCoordArray;
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}
void CoordsBuffer::addBoudingRect(const Rect& dest, int innerLineWidth)
{
int left = dest.left();
int right = dest.right();
int top = dest.top();
int bottom = dest.bottom();
int width = dest.width();
int height = dest.height();
int w = innerLineWidth;
addRect(Rect(left, top, width - w, w)); // top
addRect(Rect(right - w + 1, top, w, height - w)); // right
addRect(Rect(left + w, bottom - w + 1, width - w, w)); // bottom
addRect(Rect(left, top + w, w, height - w)); // left
}
void CoordsBuffer::addRepeatedRects(const Rect& dest, const Rect& src)
{
if(dest.isEmpty() || src.isEmpty())
return;
Rect virtualDest(0, 0, dest.size());
for(int y = 0; y <= virtualDest.height(); y += src.height()) {
for(int x = 0; x <= virtualDest.width(); x += src.width()) {
Rect partialDest(x, y, src.size());
Rect partialSrc(src);
// partialCoords to screenCoords bottomRight
if(partialDest.bottom() > virtualDest.bottom()) {
partialSrc.setBottom(partialSrc.bottom() + (virtualDest.bottom() - partialDest.bottom()));
partialDest.setBottom(virtualDest.bottom());
}
if(partialDest.right() > virtualDest.right()) {
partialSrc.setRight(partialSrc.right() + (virtualDest.right() - partialDest.right()));
partialDest.setRight(virtualDest.right());
}
partialDest.translate(dest.topLeft());
m_vertexArray.addRect(partialDest);
m_textureCoordArray.addRect(partialSrc);
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}
}
m_hardwareCached = false;
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}
void CoordsBuffer::enableHardwareCaching(HardwareBuffer::UsagePattern usagePattern)
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{
if(!g_graphics.canUseHardwareBuffers())
return;
m_hardwareCacheMode = usagePattern;
m_hardwareCaching = true;
m_hardwareCached = false;
}
void CoordsBuffer::updateCaches()
{
if(!m_hardwareCaching || m_hardwareCached)
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return;
int vertexCount = m_vertexArray.vertexCount();
// there is only performance improvement when caching a lot of vertices
if(vertexCount < CACHE_MIN_VERTICES_COUNT)
return;
if(vertexCount > 0) {
if(!m_hardwareVertexArray && m_vertexArray.vertexCount() > 0)
m_hardwareVertexArray = new HardwareBuffer(HardwareBuffer::VertexBuffer);
m_hardwareVertexArray->bind();
m_hardwareVertexArray->write((void*)m_vertexArray.vertices(), m_vertexArray.size() * sizeof(float), m_hardwareCacheMode);
}
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if(m_textureCoordArray.vertexCount() > 0) {
if(!m_hardwareTextureCoordArray && m_textureCoordArray.vertexCount() > 0)
m_hardwareTextureCoordArray = new HardwareBuffer(HardwareBuffer::VertexBuffer);
m_hardwareTextureCoordArray->bind();
m_hardwareTextureCoordArray->write((void*)m_textureCoordArray.vertices(), m_textureCoordArray.size() * sizeof(float), m_hardwareCacheMode);
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}
m_hardwareCached = true;
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}