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Moved post processing effects to its own file

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This commit is contained in:
Magnus Norddahl 2016-07-30 00:02:26 +02:00
parent 5849c83028
commit 9bfce5b6ea
3 changed files with 347 additions and 273 deletions
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1
src/CMakeLists.txt
View file

@ -1062,6 +1062,7 @@ set( FASTMATH_SOURCES
gl/renderer/gl_renderstate.cpp
gl/renderer/gl_renderbuffers.cpp
gl/renderer/gl_lightdata.cpp
gl/renderer/gl_postprocess.cpp
gl/hqnx/init.cpp
gl/hqnx/hq2x.cpp
gl/hqnx/hq3x.cpp

346
src/gl/renderer/gl_postprocess.cpp Normal file
View file

@ -0,0 +1,346 @@
/*
** gl_postprocess.cpp
** Post processing effects in the render pipeline
**
**---------------------------------------------------------------------------
** Copyright 2016 Magnus Norddahl
** 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.
** 4. When not used as part of GZDoom or a GZDoom derivative, this code will be
** covered by the terms of the GNU Lesser General Public License as published
** by the Free Software Foundation; either version 2.1 of the License, or (at
** your option) any later version.
** 5. Full disclosure of the entire project's source code, except for third
** party libraries is mandatory. (NOTE: This clause is non-negotiable!)
**
** 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/gl_system.h"
#include "gi.h"
#include "m_png.h"
#include "m_random.h"
#include "st_stuff.h"
#include "dobject.h"
#include "doomstat.h"
#include "g_level.h"
#include "r_data/r_interpolate.h"
#include "r_utility.h"
#include "d_player.h"
#include "p_effect.h"
#include "sbar.h"
#include "po_man.h"
#include "r_utility.h"
#include "a_hexenglobal.h"
#include "p_local.h"
#include "gl/gl_functions.h"
#include "gl/system/gl_interface.h"
#include "gl/system/gl_framebuffer.h"
#include "gl/system/gl_cvars.h"
#include "gl/renderer/gl_lightdata.h"
#include "gl/renderer/gl_renderstate.h"
#include "gl/renderer/gl_renderbuffers.h"
#include "gl/renderer/gl_renderer.h"
#include "gl/data/gl_data.h"
#include "gl/data/gl_vertexbuffer.h"
#include "gl/shaders/gl_bloomshader.h"
#include "gl/shaders/gl_blurshader.h"
#include "gl/shaders/gl_tonemapshader.h"
#include "gl/shaders/gl_presentshader.h"
//==========================================================================
//
// CVARs
//
//==========================================================================
CVAR(Bool, gl_bloom, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG);
CVAR(Float, gl_bloom_amount, 1.4f, 0)
CVAR(Float, gl_exposure, 0.0f, 0)
CUSTOM_CVAR(Int, gl_tonemap, 0, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
{
if (self < 0 || self > 4)
self = 0;
}
CUSTOM_CVAR(Int, gl_bloom_kernel_size, 7, 0)
{
if (self < 3 || self > 15 || self % 2 == 0)
self = 7;
}
EXTERN_CVAR(Float, vid_brightness)
EXTERN_CVAR(Float, vid_contrast)
//-----------------------------------------------------------------------------
//
// Adds bloom contribution to scene texture
//
//-----------------------------------------------------------------------------
void FGLRenderer::BloomScene()
{
// Only bloom things if enabled and no special fixed light mode is active
if (!gl_bloom || !FGLRenderBuffers::IsEnabled() || gl_fixedcolormap != CM_DEFAULT)
return;
const float blurAmount = gl_bloom_amount;
int sampleCount = gl_bloom_kernel_size;
// TBD: Maybe need a better way to share state with other parts of the pipeline
GLboolean blendEnabled, scissorEnabled;
GLint currentProgram, blendEquationRgb, blendEquationAlpha, blendSrcRgb, blendSrcAlpha, blendDestRgb, blendDestAlpha;
glGetBooleanv(GL_BLEND, &blendEnabled);
glGetBooleanv(GL_SCISSOR_TEST, &scissorEnabled);
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_BLEND);
glDisable(GL_SCISSOR_TEST);
const auto &level0 = mBuffers->BloomLevels[0];
// Extract blooming pixels from scene texture:
glBindFramebuffer(GL_FRAMEBUFFER, level0.VFramebuffer);
glViewport(0, 0, level0.Width, level0.Height);
mBuffers->BindSceneTexture(0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
mBloomExtractShader->Bind();
mBloomExtractShader->SceneTexture.Set(0);
mBloomExtractShader->Exposure.Set(mCameraExposure);
{
FFlatVertex *ptr = mVBO->GetBuffer();
ptr->Set(-1.0f, -1.0f, 0, 0.0f, 0.0f); ptr++;
ptr->Set(-1.0f, 1.0f, 0, 0.0f, 1.0f); ptr++;
ptr->Set(1.0f, -1.0f, 0, 1.0f, 0.0f); ptr++;
ptr->Set(1.0f, 1.0f, 0, 1.0f, 1.0f); ptr++;
mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
}
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
// Blur and downscale:
for (int i = 0; i < FGLRenderBuffers::NumBloomLevels - 1; i++)
{
const auto &level = mBuffers->BloomLevels[i];
const auto &next = mBuffers->BloomLevels[i + 1];
mBlurShader->BlurHorizontal(mVBO, blurAmount, sampleCount, level.VTexture, level.HFramebuffer, level.Width, level.Height);
mBlurShader->BlurVertical(mVBO, blurAmount, sampleCount, level.HTexture, next.VFramebuffer, next.Width, next.Height);
}
// Blur and upscale:
for (int i = FGLRenderBuffers::NumBloomLevels - 1; i > 0; i--)
{
const auto &level = mBuffers->BloomLevels[i];
const auto &next = mBuffers->BloomLevels[i - 1];
mBlurShader->BlurHorizontal(mVBO, blurAmount, sampleCount, level.VTexture, level.HFramebuffer, level.Width, level.Height);
mBlurShader->BlurVertical(mVBO, blurAmount, sampleCount, level.HTexture, level.VFramebuffer, level.Width, level.Height);
// Linear upscale:
glBindFramebuffer(GL_FRAMEBUFFER, next.VFramebuffer);
glViewport(0, 0, next.Width, next.Height);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, level.VTexture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
mBloomCombineShader->Bind();
mBloomCombineShader->BloomTexture.Set(0);
{
FFlatVertex *ptr = mVBO->GetBuffer();
ptr->Set(-1.0f, -1.0f, 0, 0.0f, 0.0f); ptr++;
ptr->Set(-1.0f, 1.0f, 0, 0.0f, 1.0f); ptr++;
ptr->Set(1.0f, -1.0f, 0, 1.0f, 0.0f); ptr++;
ptr->Set(1.0f, 1.0f, 0, 1.0f, 1.0f); ptr++;
mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
}
}
mBlurShader->BlurHorizontal(mVBO, blurAmount, sampleCount, level0.VTexture, level0.HFramebuffer, level0.Width, level0.Height);
mBlurShader->BlurVertical(mVBO, blurAmount, sampleCount, level0.HTexture, level0.VFramebuffer, level0.Width, level0.Height);
// Add bloom back to scene texture:
mBuffers->BindSceneFB();
glViewport(0, 0, mOutputViewport.width, mOutputViewport.height);
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_ONE, GL_ONE);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, level0.VTexture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
mBloomCombineShader->Bind();
mBloomCombineShader->BloomTexture.Set(0);
{
FFlatVertex *ptr = mVBO->GetBuffer();
ptr->Set(-1.0f, -1.0f, 0, 0.0f, 0.0f); ptr++;
ptr->Set(-1.0f, 1.0f, 0, 0.0f, 1.0f); ptr++;
ptr->Set(1.0f, -1.0f, 0, 1.0f, 0.0f); ptr++;
ptr->Set(1.0f, 1.0f, 0, 1.0f, 1.0f); ptr++;
mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
}
if (blendEnabled)
glEnable(GL_BLEND);
if (scissorEnabled)
glEnable(GL_SCISSOR_TEST);
glBlendEquationSeparate(blendEquationRgb, blendEquationAlpha);
glBlendFuncSeparate(blendSrcRgb, blendDestRgb, blendSrcAlpha, blendDestAlpha);
glUseProgram(currentProgram);
}
//-----------------------------------------------------------------------------
//
// Tonemap scene texture and place the result in the HUD/2D texture
//
//-----------------------------------------------------------------------------
void FGLRenderer::TonemapScene()
{
if (gl_tonemap == 0)
return;
GLboolean blendEnabled, scissorEnabled;
glGetBooleanv(GL_BLEND, &blendEnabled);
glGetBooleanv(GL_SCISSOR_TEST, &scissorEnabled);
glDisable(GL_BLEND);
glDisable(GL_SCISSOR_TEST);
mBuffers->BindHudFB();
mBuffers->BindSceneTexture(0);
mTonemapShader->Bind();
mTonemapShader->SceneTexture.Set(0);
mTonemapShader->Exposure.Set(mCameraExposure);
FFlatVertex *ptr = mVBO->GetBuffer();
ptr->Set(-1.0f, -1.0f, 0, 0.0f, 0.0f); ptr++;
ptr->Set(-1.0f, 1.0f, 0, 0.0f, 1.0f); ptr++;
ptr->Set(1.0f, -1.0f, 0, 1.0f, 0.0f); ptr++;
ptr->Set(1.0f, 1.0f, 0, 1.0f, 1.0f); ptr++;
mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
if (blendEnabled)
glEnable(GL_BLEND);
if (scissorEnabled)
glEnable(GL_SCISSOR_TEST);
}
//-----------------------------------------------------------------------------
//
// Gamma correct while copying to frame buffer
//
//-----------------------------------------------------------------------------
void FGLRenderer::Flush()
{
if (FGLRenderBuffers::IsEnabled())
{
glDisable(GL_MULTISAMPLE);
glDisable(GL_DEPTH_TEST);
glDisable(GL_STENCIL_TEST);
mBuffers->BindOutputFB();
// Calculate letterbox
int clientWidth = framebuffer->GetClientWidth();
int clientHeight = framebuffer->GetClientHeight();
float scaleX = clientWidth / (float)mOutputViewport.width;
float scaleY = clientHeight / (float)mOutputViewport.height;
float scale = MIN(scaleX, scaleY);
int width = (int)round(mOutputViewport.width * scale);
int height = (int)round(mOutputViewport.height * scale);
int x = (clientWidth - width) / 2;
int y = (clientHeight - height) / 2;
// Black bars around the box:
glViewport(0, 0, clientWidth, clientHeight);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glEnable(GL_SCISSOR_TEST);
if (y > 0)
{
glScissor(0, 0, clientWidth, y);
glClear(GL_COLOR_BUFFER_BIT);
}
if (clientHeight - y - height > 0)
{
glScissor(0, y + height, clientWidth, clientHeight - y - height);
glClear(GL_COLOR_BUFFER_BIT);
}
if (x > 0)
{
glScissor(0, y, x, height);
glClear(GL_COLOR_BUFFER_BIT);
}
if (clientWidth - x - width > 0)
{
glScissor(x + width, y, clientWidth - x - width, height);
glClear(GL_COLOR_BUFFER_BIT);
}
glDisable(GL_SCISSOR_TEST);
// Present what was rendered:
glViewport(x, y, width, height);
GLboolean blendEnabled;
GLint currentProgram;
glGetBooleanv(GL_BLEND, &blendEnabled);
glGetIntegerv(GL_CURRENT_PROGRAM, &currentProgram);
glDisable(GL_BLEND);
mPresentShader->Bind();
mPresentShader->InputTexture.Set(0);
if (framebuffer->IsHWGammaActive())
{
mPresentShader->Gamma.Set(1.0f);
mPresentShader->Contrast.Set(1.0f);
mPresentShader->Brightness.Set(0.0f);
}
else
{
mPresentShader->Gamma.Set(clamp<float>(Gamma, 0.1f, 4.f));
mPresentShader->Contrast.Set(clamp<float>(vid_contrast, 0.1f, 3.f));
mPresentShader->Brightness.Set(clamp<float>(vid_brightness, -0.8f, 0.8f));
}
mBuffers->BindHudTexture(0);
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(-1.0f, -1.0f, 0, 0.0f, 0.0f); ptr++;
ptr->Set(-1.0f, 1.0f, 0, 0.0f, 1.0f); ptr++;
ptr->Set(1.0f, -1.0f, 0, 1.0f, 0.0f); ptr++;
ptr->Set(1.0f, 1.0f, 0, 1.0f, 1.0f); ptr++;
GLRenderer->mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
if (blendEnabled)
glEnable(GL_BLEND);
glUseProgram(currentProgram);
}
}

273
src/gl/scene/gl_scene.cpp
View file

@ -72,10 +72,6 @@
#include "gl/scene/gl_drawinfo.h"
#include "gl/scene/gl_portal.h"
#include "gl/shaders/gl_shader.h"
#include "gl/shaders/gl_bloomshader.h"
#include "gl/shaders/gl_blurshader.h"
#include "gl/shaders/gl_tonemapshader.h"
#include "gl/shaders/gl_presentshader.h"
#include "gl/stereo3d/gl_stereo3d.h"
#include "gl/stereo3d/scoped_view_shifter.h"
#include "gl/textures/gl_translate.h"
@ -96,26 +92,8 @@ CVAR(Float, gl_mask_threshold, 0.5f,CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
CVAR(Float, gl_mask_sprite_threshold, 0.5f,CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
CVAR(Bool, gl_sort_textures, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
CVAR(Bool, gl_bloom, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG);
CVAR(Float, gl_bloom_amount, 1.4f, 0)
CVAR(Float, gl_exposure, 0.0f, 0)
CUSTOM_CVAR(Int, gl_tonemap, 0, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
{
if (self < 0 || self > 4)
self = 0;
}
CUSTOM_CVAR(Int, gl_bloom_kernel_size, 7, 0)
{
if (self < 3 || self > 15 || self % 2 == 0)
self = 7;
}
EXTERN_CVAR (Bool, cl_capfps)
EXTERN_CVAR (Bool, r_deathcamera)
EXTERN_CVAR(Float, vid_brightness)
EXTERN_CVAR(Float, vid_contrast)
extern int viewpitch;
@ -223,257 +201,6 @@ void FGLRenderer::Set3DViewport(bool toscreen)
glStencilOp(GL_KEEP,GL_KEEP,GL_REPLACE);
}
//-----------------------------------------------------------------------------
//
// Adds bloom contribution to scene texture
//
//-----------------------------------------------------------------------------
void FGLRenderer::BloomScene()
{
// Only bloom things if enabled and no special fixed light mode is active
if (!gl_bloom || !FGLRenderBuffers::IsEnabled() || gl_fixedcolormap != CM_DEFAULT)
return;
const float blurAmount = gl_bloom_amount;
int sampleCount = gl_bloom_kernel_size;
// TBD: Maybe need a better way to share state with other parts of the pipeline
GLboolean blendEnabled, scissorEnabled;
GLint currentProgram, blendEquationRgb, blendEquationAlpha, blendSrcRgb, blendSrcAlpha, blendDestRgb, blendDestAlpha;
glGetBooleanv(GL_BLEND, &blendEnabled);
glGetBooleanv(GL_SCISSOR_TEST, &scissorEnabled);
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_BLEND);
glDisable(GL_SCISSOR_TEST);
const auto &level0 = mBuffers->BloomLevels[0];
// Extract blooming pixels from scene texture:
glBindFramebuffer(GL_FRAMEBUFFER, level0.VFramebuffer);
glViewport(0, 0, level0.Width, level0.Height);
mBuffers->BindSceneTexture(0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
mBloomExtractShader->Bind();
mBloomExtractShader->SceneTexture.Set(0);
mBloomExtractShader->Exposure.Set(mCameraExposure);
{
FFlatVertex *ptr = mVBO->GetBuffer();
ptr->Set(-1.0f, -1.0f, 0, 0.0f, 0.0f); ptr++;
ptr->Set(-1.0f, 1.0f, 0, 0.0f, 1.0f); ptr++;
ptr->Set(1.0f, -1.0f, 0, 1.0f, 0.0f); ptr++;
ptr->Set(1.0f, 1.0f, 0, 1.0f, 1.0f); ptr++;
mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
}
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
// Blur and downscale:
for (int i = 0; i < FGLRenderBuffers::NumBloomLevels - 1; i++)
{
const auto &level = mBuffers->BloomLevels[i];
const auto &next = mBuffers->BloomLevels[i + 1];
mBlurShader->BlurHorizontal(mVBO, blurAmount, sampleCount, level.VTexture, level.HFramebuffer, level.Width, level.Height);
mBlurShader->BlurVertical(mVBO, blurAmount, sampleCount, level.HTexture, next.VFramebuffer, next.Width, next.Height);
}
// Blur and upscale:
for (int i = FGLRenderBuffers::NumBloomLevels - 1; i > 0; i--)
{
const auto &level = mBuffers->BloomLevels[i];
const auto &next = mBuffers->BloomLevels[i - 1];
mBlurShader->BlurHorizontal(mVBO, blurAmount, sampleCount, level.VTexture, level.HFramebuffer, level.Width, level.Height);
mBlurShader->BlurVertical(mVBO, blurAmount, sampleCount, level.HTexture, level.VFramebuffer, level.Width, level.Height);
// Linear upscale:
glBindFramebuffer(GL_FRAMEBUFFER, next.VFramebuffer);
glViewport(0, 0, next.Width, next.Height);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, level.VTexture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
mBloomCombineShader->Bind();
mBloomCombineShader->BloomTexture.Set(0);
{
FFlatVertex *ptr = mVBO->GetBuffer();
ptr->Set(-1.0f, -1.0f, 0, 0.0f, 0.0f); ptr++;
ptr->Set(-1.0f, 1.0f, 0, 0.0f, 1.0f); ptr++;
ptr->Set(1.0f, -1.0f, 0, 1.0f, 0.0f); ptr++;
ptr->Set(1.0f, 1.0f, 0, 1.0f, 1.0f); ptr++;
mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
}
}
mBlurShader->BlurHorizontal(mVBO, blurAmount, sampleCount, level0.VTexture, level0.HFramebuffer, level0.Width, level0.Height);
mBlurShader->BlurVertical(mVBO, blurAmount, sampleCount, level0.HTexture, level0.VFramebuffer, level0.Width, level0.Height);
// Add bloom back to scene texture:
mBuffers->BindSceneFB();
glViewport(0, 0, mOutputViewport.width, mOutputViewport.height);
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_ONE, GL_ONE);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, level0.VTexture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
mBloomCombineShader->Bind();
mBloomCombineShader->BloomTexture.Set(0);
{
FFlatVertex *ptr = mVBO->GetBuffer();
ptr->Set(-1.0f, -1.0f, 0, 0.0f, 0.0f); ptr++;
ptr->Set(-1.0f, 1.0f, 0, 0.0f, 1.0f); ptr++;
ptr->Set(1.0f, -1.0f, 0, 1.0f, 0.0f); ptr++;
ptr->Set(1.0f, 1.0f, 0, 1.0f, 1.0f); ptr++;
mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
}
if (blendEnabled)
glEnable(GL_BLEND);
if (scissorEnabled)
glEnable(GL_SCISSOR_TEST);
glBlendEquationSeparate(blendEquationRgb, blendEquationAlpha);
glBlendFuncSeparate(blendSrcRgb, blendDestRgb, blendSrcAlpha, blendDestAlpha);
glUseProgram(currentProgram);
}
//-----------------------------------------------------------------------------
//
// Tonemap scene texture and place the result in the HUD/2D texture
//
//-----------------------------------------------------------------------------
void FGLRenderer::TonemapScene()
{
if (gl_tonemap == 0)
return;
GLboolean blendEnabled, scissorEnabled;
glGetBooleanv(GL_BLEND, &blendEnabled);
glGetBooleanv(GL_SCISSOR_TEST, &scissorEnabled);
glDisable(GL_BLEND);
glDisable(GL_SCISSOR_TEST);
mBuffers->BindHudFB();
mBuffers->BindSceneTexture(0);
mTonemapShader->Bind();
mTonemapShader->SceneTexture.Set(0);
mTonemapShader->Exposure.Set(mCameraExposure);
FFlatVertex *ptr = mVBO->GetBuffer();
ptr->Set(-1.0f, -1.0f, 0, 0.0f, 0.0f); ptr++;
ptr->Set(-1.0f, 1.0f, 0, 0.0f, 1.0f); ptr++;
ptr->Set(1.0f, -1.0f, 0, 1.0f, 0.0f); ptr++;
ptr->Set(1.0f, 1.0f, 0, 1.0f, 1.0f); ptr++;
mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
if (blendEnabled)
glEnable(GL_BLEND);
if (scissorEnabled)
glEnable(GL_SCISSOR_TEST);
}
//-----------------------------------------------------------------------------
//
// Gamma correct while copying to frame buffer
//
//-----------------------------------------------------------------------------
void FGLRenderer::Flush()
{
if (FGLRenderBuffers::IsEnabled())
{
glDisable(GL_MULTISAMPLE);
glDisable(GL_DEPTH_TEST);
glDisable(GL_STENCIL_TEST);
mBuffers->BindOutputFB();
// Calculate letterbox
int clientWidth = framebuffer->GetClientWidth();
int clientHeight = framebuffer->GetClientHeight();
float scaleX = clientWidth / (float)mOutputViewport.width;
float scaleY = clientHeight / (float)mOutputViewport.height;
float scale = MIN(scaleX, scaleY);
int width = (int)round(mOutputViewport.width * scale);
int height = (int)round(mOutputViewport.height * scale);
int x = (clientWidth - width) / 2;
int y = (clientHeight - height) / 2;
// Black bars around the box:
glViewport(0, 0, clientWidth, clientHeight);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glEnable(GL_SCISSOR_TEST);
if (y > 0)
{
glScissor(0, 0, clientWidth, y);
glClear(GL_COLOR_BUFFER_BIT);
}
if (clientHeight - y - height > 0)
{
glScissor(0, y + height, clientWidth, clientHeight - y - height);
glClear(GL_COLOR_BUFFER_BIT);
}
if (x > 0)
{
glScissor(0, y, x, height);
glClear(GL_COLOR_BUFFER_BIT);
}
if (clientWidth - x - width > 0)
{
glScissor(x + width, y, clientWidth - x - width, height);
glClear(GL_COLOR_BUFFER_BIT);
}
glDisable(GL_SCISSOR_TEST);
// Present what was rendered:
glViewport(x, y, width, height);
GLboolean blendEnabled;
GLint currentProgram;
glGetBooleanv(GL_BLEND, &blendEnabled);
glGetIntegerv(GL_CURRENT_PROGRAM, &currentProgram);
glDisable(GL_BLEND);
mPresentShader->Bind();
mPresentShader->InputTexture.Set(0);
if (framebuffer->IsHWGammaActive())
{
mPresentShader->Gamma.Set(1.0f);
mPresentShader->Contrast.Set(1.0f);
mPresentShader->Brightness.Set(0.0f);
}
else
{
mPresentShader->Gamma.Set(clamp<float>(Gamma, 0.1f, 4.f));
mPresentShader->Contrast.Set(clamp<float>(vid_contrast, 0.1f, 3.f));
mPresentShader->Brightness.Set(clamp<float>(vid_brightness, -0.8f, 0.8f));
}
mBuffers->BindHudTexture(0);
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(-1.0f, -1.0f, 0, 0.0f, 0.0f); ptr++;
ptr->Set(-1.0f, 1.0f, 0, 0.0f, 1.0f); ptr++;
ptr->Set(1.0f, -1.0f, 0, 1.0f, 0.0f); ptr++;
ptr->Set(1.0f, 1.0f, 0, 1.0f, 1.0f); ptr++;
GLRenderer->mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
if (blendEnabled)
glEnable(GL_BLEND);
glUseProgram(currentProgram);
}
}
//-----------------------------------------------------------------------------
//
// Setup the camera position