Kearwood Gilbert
1c7aea8d50
Optimizations to Impulse Response Reverb convolution algorithm to speed up FFT's and reduce memory consumption. GL_EXT_texture_storage extension now functioning for cube maps.
122 lines
4.0 KiB
C++
122 lines
4.0 KiB
C++
//
|
|
// KRTexture2D.cpp
|
|
// KREngine
|
|
//
|
|
// Copyright 2012 Kearwood Gilbert. All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without modification, are
|
|
// permitted provided that the following conditions are met:
|
|
//
|
|
// 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
// conditions and the following disclaimer.
|
|
//
|
|
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
// of conditions and the following disclaimer in the documentation and/or other materials
|
|
// provided with the distribution.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
|
|
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
|
|
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
// The views and conclusions contained in the software and documentation are those of the
|
|
// authors and should not be interpreted as representing official policies, either expressed
|
|
// or implied, of Kearwood Gilbert.
|
|
//
|
|
|
|
#include "KREngine-common.h"
|
|
#include "KRTexture2D.h"
|
|
#include "KRTextureManager.h"
|
|
|
|
KRTexture2D::KRTexture2D(KRContext &context, KRDataBlock *data, std::string name) : KRTexture(context, name) {
|
|
m_current_lod_max_dim = 0;
|
|
m_pData = data;
|
|
}
|
|
|
|
KRTexture2D::~KRTexture2D() {
|
|
delete m_pData;
|
|
}
|
|
|
|
bool KRTexture2D::createGLTexture(int lod_max_dim) {
|
|
bool success = true;
|
|
GLuint prev_handle = 0;
|
|
int prev_lod_max_dim = 0;
|
|
long prev_mem_size = 0;
|
|
#if GL_APPLE_copy_texture_levels && GL_EXT_texture_storage
|
|
|
|
if(m_iHandle != 0) {
|
|
prev_handle = m_iHandle;
|
|
prev_mem_size = getMemSize();
|
|
m_iHandle = 0;
|
|
m_textureMemUsed = 0;
|
|
prev_lod_max_dim = m_current_lod_max_dim;
|
|
}
|
|
#else
|
|
releaseHandle();
|
|
#endif
|
|
|
|
m_current_lod_max_dim = 0;
|
|
GLDEBUG(glGenTextures(1, &m_iHandle));
|
|
|
|
if(m_iHandle == 0) {
|
|
success = false;
|
|
} else {
|
|
|
|
GLDEBUG(glBindTexture(GL_TEXTURE_2D, m_iHandle));
|
|
if (hasMipmaps()) {
|
|
GLDEBUG(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR));
|
|
} else {
|
|
GLDEBUG(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
|
|
}
|
|
|
|
if(!uploadTexture(GL_TEXTURE_2D, lod_max_dim, m_current_lod_max_dim, m_textureMemUsed, prev_lod_max_dim, prev_handle)) {
|
|
GLDEBUG(glDeleteTextures(1, &m_iHandle));
|
|
m_iHandle = 0;
|
|
m_current_lod_max_dim = 0;
|
|
success = false;
|
|
}
|
|
}
|
|
|
|
if(prev_handle != 0) {
|
|
getContext().getTextureManager()->memoryChanged(-prev_mem_size);
|
|
GLDEBUG(glDeleteTextures(1, &prev_handle));
|
|
}
|
|
|
|
return success;
|
|
}
|
|
|
|
void KRTexture2D::bind(GLuint texture_unit) {
|
|
GLuint handle = getHandle();
|
|
|
|
GLDEBUG(glBindTexture(GL_TEXTURE_2D, handle));
|
|
if(handle) {
|
|
// TODO - These texture parameters should be assigned by the material or texture parameters
|
|
m_pContext->getTextureManager()->_setWrapModeS(texture_unit, GL_REPEAT);
|
|
m_pContext->getTextureManager()->_setWrapModeT(texture_unit, GL_REPEAT);
|
|
}
|
|
}
|
|
|
|
|
|
bool KRTexture2D::save(const std::string& path)
|
|
{
|
|
if(m_pData) {
|
|
return m_pData->save(path);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool KRTexture2D::save(KRDataBlock &data) {
|
|
if(m_pData) {
|
|
data.append(*m_pData);
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|