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- moved most of the OpenGL backend to 'common'.

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A few things are yet to do, because they still need some changes.
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Christoph Oelckers 2020-04-26 14:44:19 +02:00
commit 02832297ff
26 changed files with 216 additions and 220 deletions
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116
src/common/rendering/gl/gl_samplers.cpp Normal file
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/*
** 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/gl_renderer.h"
#include "gl_samplers.h"
#include "hw_material.h"
namespace OpenGLRenderer
{
extern TexFilter_s TexFilter[];
FSamplerManager::FSamplerManager()
{
glGenSamplers(7, mSamplers);
SetTextureFilterMode();
glSamplerParameteri(mSamplers[5], GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glSamplerParameteri(mSamplers[5], GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glSamplerParameterf(mSamplers[5], GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.f);
glSamplerParameterf(mSamplers[4], GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.f);
glSamplerParameterf(mSamplers[6], GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.f);
glSamplerParameteri(mSamplers[1], GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glSamplerParameteri(mSamplers[2], GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glSamplerParameteri(mSamplers[3], GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glSamplerParameteri(mSamplers[3], GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glSamplerParameteri(mSamplers[4], GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glSamplerParameteri(mSamplers[4], GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
for (int i = 0; i < 7; i++)
{
FString name;
name.Format("mSamplers[%d]", i);
FGLDebug::LabelObject(GL_SAMPLER, mSamplers[i], name.GetChars());
}
}
FSamplerManager::~FSamplerManager()
{
UnbindAll();
glDeleteSamplers(7, mSamplers);
}
void FSamplerManager::UnbindAll()
{
for (int i = 0; i < FHardwareTexture::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()
{
UnbindAll();
int filter = V_IsHardwareRenderer() ? gl_texture_filter : 0;
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[4], GL_TEXTURE_MIN_FILTER, TexFilter[filter].magfilter);
glSamplerParameteri(mSamplers[4], GL_TEXTURE_MAG_FILTER, TexFilter[filter].magfilter);
glSamplerParameteri(mSamplers[6], GL_TEXTURE_MIN_FILTER, TexFilter[filter].magfilter);
glSamplerParameteri(mSamplers[6], GL_TEXTURE_MAG_FILTER, TexFilter[filter].magfilter);
}
}