114 lines
3.7 KiB
C++
114 lines
3.7 KiB
C++
//
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// KRTexture2D.cpp
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// KREngine
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//
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// Copyright 2012 Kearwood Gilbert. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other materials
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// provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// The views and conclusions contained in the software and documentation are those of the
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// authors and should not be interpreted as representing official policies, either expressed
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// or implied, of Kearwood Gilbert.
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//
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#include "KREngine-common.h"
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#include "KRTexture2D.h"
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#include "KRTextureManager.h"
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KRTexture2D::KRTexture2D(KRContext &context, KRDataBlock *data, std::string name) : KRTexture(context, name) {
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m_current_lod_max_dim = 0;
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m_pData = data;
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}
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KRTexture2D::~KRTexture2D() {
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delete m_pData;
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}
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bool KRTexture2D::createGLTexture(int lod_max_dim) {
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if(m_iHandle != m_iNewHandle) {
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return true;
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}
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bool success = true;
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int prev_lod_max_dim = 0;
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#if GL_APPLE_copy_texture_levels && GL_EXT_texture_storage
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if(m_iHandle != 0) {
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prev_lod_max_dim = m_current_lod_max_dim;
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}
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#endif
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m_iNewHandle = 0;
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m_current_lod_max_dim = 0;
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GLDEBUG(glGenTextures(1, &m_iNewHandle));
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if(m_iNewHandle == 0) {
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success = false;
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} else {
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GLDEBUG(glBindTexture(GL_TEXTURE_2D, m_iNewHandle));
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if (hasMipmaps()) {
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GLDEBUG(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR));
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} else {
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GLDEBUG(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
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}
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if(!uploadTexture(GL_TEXTURE_2D, lod_max_dim, m_current_lod_max_dim, prev_lod_max_dim)) {
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GLDEBUG(glDeleteTextures(1, &m_iNewHandle));
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m_iNewHandle = m_iHandle;
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m_current_lod_max_dim = prev_lod_max_dim;
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success = false;
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}
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}
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return success;
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}
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void KRTexture2D::bind(GLuint texture_unit) {
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KRTexture::bind(texture_unit);
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GLuint handle = getHandle();
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GLDEBUG(glBindTexture(GL_TEXTURE_2D, handle));
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if(handle) {
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// TODO - These texture parameters should be assigned by the material or texture parameters
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m_pContext->getTextureManager()->_setWrapModeS(texture_unit, GL_REPEAT);
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m_pContext->getTextureManager()->_setWrapModeT(texture_unit, GL_REPEAT);
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}
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}
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bool KRTexture2D::save(const std::string& path)
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{
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if(m_pData) {
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return m_pData->save(path);
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} else {
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return false;
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}
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}
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bool KRTexture2D::save(KRDataBlock &data) {
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if(m_pData) {
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data.append(*m_pData);
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return true;
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} else {
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return false;
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}
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}
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