mirror of
https://github.com/ZDoom/Raze.git
synced 2024-11-15 17:01:28 +00:00
141 lines
5 KiB
C++
141 lines
5 KiB
C++
/*
|
|
** gl_samplers.cpp
|
|
**
|
|
** Texture sampler handling
|
|
**
|
|
**---------------------------------------------------------------------------
|
|
** Copyright 2015-2019 Christoph Oelckers
|
|
** 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.
|
|
** 3. The name of the author may not be used to endorse or promote products
|
|
** derived from this software without specific prior written permission.
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
|
|
**---------------------------------------------------------------------------
|
|
**
|
|
*/
|
|
#include "gl_system.h"
|
|
#include "c_cvars.h"
|
|
|
|
#include "gl_interface.h"
|
|
#include "hw_cvars.h"
|
|
#include "gl_debug.h"
|
|
#include "gl_renderer.h"
|
|
#include "gl_samplers.h"
|
|
#include "hw_material.h"
|
|
#include "i_interface.h"
|
|
|
|
namespace OpenGLRenderer
|
|
{
|
|
|
|
extern TexFilter_s TexFilter[];
|
|
|
|
|
|
FSamplerManager::FSamplerManager()
|
|
{
|
|
glGenSamplers(NUMSAMPLERS, mSamplers);
|
|
|
|
glSamplerParameteri(mSamplers[CLAMP_X], GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
|
glSamplerParameteri(mSamplers[CLAMP_Y], GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
|
glSamplerParameteri(mSamplers[CLAMP_XY], GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
|
glSamplerParameteri(mSamplers[CLAMP_XY], GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
|
glSamplerParameteri(mSamplers[CLAMP_NOFILTER_X], GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
|
glSamplerParameteri(mSamplers[CLAMP_NOFILTER_Y], GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
|
glSamplerParameteri(mSamplers[CLAMP_NOFILTER_XY], GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
|
glSamplerParameteri(mSamplers[CLAMP_NOFILTER_XY], GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
|
for (int i = CLAMP_NOFILTER; i <= CLAMP_NOFILTER_XY; i++)
|
|
{
|
|
glSamplerParameteri(mSamplers[i], GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
|
glSamplerParameteri(mSamplers[i], GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
glSamplerParameterf(mSamplers[i], GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.f);
|
|
|
|
}
|
|
|
|
glSamplerParameteri(mSamplers[CLAMP_XY_NOMIP], GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
|
glSamplerParameteri(mSamplers[CLAMP_XY_NOMIP], GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
|
glSamplerParameterf(mSamplers[CLAMP_XY_NOMIP], GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.f);
|
|
glSamplerParameterf(mSamplers[CLAMP_CAMTEX], GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.f);
|
|
|
|
SetTextureFilterMode();
|
|
|
|
|
|
for (int i = 0; i < NUMSAMPLERS; i++)
|
|
{
|
|
FString name;
|
|
name.Format("mSamplers[%d]", i);
|
|
FGLDebug::LabelObject(GL_SAMPLER, mSamplers[i], name.GetChars());
|
|
}
|
|
}
|
|
|
|
FSamplerManager::~FSamplerManager()
|
|
{
|
|
UnbindAll();
|
|
glDeleteSamplers(NUMSAMPLERS, mSamplers);
|
|
}
|
|
|
|
void FSamplerManager::UnbindAll()
|
|
{
|
|
for (int i = 0; i < IHardwareTexture::MAX_TEXTURES; i++)
|
|
{
|
|
glBindSampler(i, 0);
|
|
}
|
|
}
|
|
|
|
uint8_t FSamplerManager::Bind(int texunit, int num, int lastval)
|
|
{
|
|
unsigned int samp = mSamplers[num];
|
|
glBindSampler(texunit, samp);
|
|
return 255;
|
|
}
|
|
|
|
|
|
void FSamplerManager::SetTextureFilterMode()
|
|
{
|
|
GLint bounds[IHardwareTexture::MAX_TEXTURES];
|
|
|
|
// Unbind all
|
|
for(int i = IHardwareTexture::MAX_TEXTURES-1; i >= 0; i--)
|
|
{
|
|
glActiveTexture(GL_TEXTURE0 + i);
|
|
glGetIntegerv(GL_SAMPLER_BINDING, &bounds[i]);
|
|
glBindSampler(i, 0);
|
|
}
|
|
|
|
int filter = sysCallbacks && sysCallbacks->DisableTextureFilter && sysCallbacks->DisableTextureFilter() ? 0 : gl_texture_filter;
|
|
|
|
for (int i = 0; i < 4; i++)
|
|
{
|
|
glSamplerParameteri(mSamplers[i], GL_TEXTURE_MIN_FILTER, TexFilter[filter].minfilter);
|
|
glSamplerParameteri(mSamplers[i], GL_TEXTURE_MAG_FILTER, TexFilter[filter].magfilter);
|
|
glSamplerParameterf(mSamplers[i], GL_TEXTURE_MAX_ANISOTROPY_EXT, gl_texture_filter_anisotropic);
|
|
}
|
|
glSamplerParameteri(mSamplers[CLAMP_XY_NOMIP], GL_TEXTURE_MIN_FILTER, TexFilter[filter].magfilter);
|
|
glSamplerParameteri(mSamplers[CLAMP_XY_NOMIP], GL_TEXTURE_MAG_FILTER, TexFilter[filter].magfilter);
|
|
glSamplerParameteri(mSamplers[CLAMP_CAMTEX], GL_TEXTURE_MIN_FILTER, TexFilter[filter].magfilter);
|
|
glSamplerParameteri(mSamplers[CLAMP_CAMTEX], GL_TEXTURE_MAG_FILTER, TexFilter[filter].magfilter);
|
|
for(int i = 0; i < IHardwareTexture::MAX_TEXTURES; i++)
|
|
{
|
|
glBindSampler(i, bounds[i]);
|
|
}
|
|
}
|
|
|
|
|
|
}
|