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- moved all rendering code into a common subdirectory.

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No changes to the files themselves was made.
This commit is contained in:
Christoph Oelckers 2019-01-31 19:58:17 +01:00
commit 89d607c9a6
256 changed files with 193 additions and 191 deletions
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140
src/rendering/gl/renderer/gl_postprocessstate.cpp Normal file
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//
//---------------------------------------------------------------------------
//
// Copyright(C) 2016 Magnus Norddahl
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see http://www.gnu.org/licenses/
//
//--------------------------------------------------------------------------
//
/*
** gl_postprocessstate.cpp
** Render state maintenance
**
**/
#include "templates.h"
#include "gl_load/gl_system.h"
#include "gl_load/gl_interface.h"
#include "gl/renderer/gl_postprocessstate.h"
namespace OpenGLRenderer
{
//-----------------------------------------------------------------------------
//
// Saves state modified by post processing shaders
//
//-----------------------------------------------------------------------------
FGLPostProcessState::FGLPostProcessState()
{
glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTex);
glActiveTexture(GL_TEXTURE0);
SaveTextureBindings(1);
glGetBooleanv(GL_BLEND, &blendEnabled);
glGetBooleanv(GL_SCISSOR_TEST, &scissorEnabled);
glGetBooleanv(GL_DEPTH_TEST, &depthEnabled);
glGetBooleanv(GL_MULTISAMPLE, &multisampleEnabled);
glGetIntegerv(GL_CURRENT_PROGRAM, &currentProgram);
glGetIntegerv(GL_BLEND_EQUATION_RGB, &blendEquationRgb);
glGetIntegerv(GL_BLEND_EQUATION_ALPHA, &blendEquationAlpha);
glGetIntegerv(GL_BLEND_SRC_RGB, &blendSrcRgb);
glGetIntegerv(GL_BLEND_SRC_ALPHA, &blendSrcAlpha);
glGetIntegerv(GL_BLEND_DST_RGB, &blendDestRgb);
glGetIntegerv(GL_BLEND_DST_ALPHA, &blendDestAlpha);
glDisable(GL_MULTISAMPLE);
glDisable(GL_DEPTH_TEST);
glDisable(GL_SCISSOR_TEST);
glDisable(GL_BLEND);
}
void FGLPostProcessState::SaveTextureBindings(unsigned int numUnits)
{
while (textureBinding.Size() < numUnits)
{
unsigned int i = textureBinding.Size();
GLint texture;
glActiveTexture(GL_TEXTURE0 + i);
glGetIntegerv(GL_TEXTURE_BINDING_2D, &texture);
glBindTexture(GL_TEXTURE_2D, 0);
textureBinding.Push(texture);
GLint sampler;
glGetIntegerv(GL_SAMPLER_BINDING, &sampler);
glBindSampler(i, 0);
samplerBinding.Push(sampler);
}
glActiveTexture(GL_TEXTURE0);
}
//-----------------------------------------------------------------------------
//
// Restores state at the end of post processing
//
//-----------------------------------------------------------------------------
FGLPostProcessState::~FGLPostProcessState()
{
if (blendEnabled)
glEnable(GL_BLEND);
else
glDisable(GL_BLEND);
if (scissorEnabled)
glEnable(GL_SCISSOR_TEST);
else
glDisable(GL_SCISSOR_TEST);
if (depthEnabled)
glEnable(GL_DEPTH_TEST);
else
glDisable(GL_DEPTH_TEST);
if (multisampleEnabled)
glEnable(GL_MULTISAMPLE);
else
glDisable(GL_MULTISAMPLE);
glBlendEquationSeparate(blendEquationRgb, blendEquationAlpha);
glBlendFuncSeparate(blendSrcRgb, blendDestRgb, blendSrcAlpha, blendDestAlpha);
glUseProgram(currentProgram);
// Fully unbind to avoid incomplete texture warnings from Nvidia's driver when gl_debug_level 4 is active
for (unsigned int i = 0; i < textureBinding.Size(); i++)
{
glActiveTexture(GL_TEXTURE0 + i);
glBindTexture(GL_TEXTURE_2D, 0);
}
for (unsigned int i = 0; i < samplerBinding.Size(); i++)
{
glBindSampler(i, samplerBinding[i]);
}
for (unsigned int i = 0; i < textureBinding.Size(); i++)
{
glActiveTexture(GL_TEXTURE0 + i);
glBindTexture(GL_TEXTURE_2D, textureBinding[i]);
}
glActiveTexture(activeTex);
}
}