mirror of
https://github.com/ZDoom/qzdoom.git
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1050013017
- use sampler objects to avoid creating up to 4 different system textures for one game texture just because of different clamping settings. - avoids flushing all textures for change of texture filter mode. - separate sprite and regular dimensions on the material level to have better control over which one gets used. It's now an explicit parameter of ValidateTexture. The main reason for this change is better handling of wall sprites which may not be subjected to such handling. - create mipmaps based on use case, not texture type. - allows removal of FCloneTexture hack for proper sharing of the same sprite for decals and other purposes. - better precaching of skyboxes.
1180 lines
34 KiB
C++
1180 lines
34 KiB
C++
/*
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** gl_scene.cpp
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** manages the rendering of the player's view
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**
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**---------------------------------------------------------------------------
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** Copyright 2004-2005 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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** 4. When not used as part of GZDoom or a GZDoom derivative, this code will be
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** covered by the terms of the GNU Lesser General Public License as published
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** by the Free Software Foundation; either version 2.1 of the License, or (at
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** your option) any later version.
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** 5. Full disclosure of the entire project's source code, except for third
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** party libraries is mandatory. (NOTE: This clause is non-negotiable!)
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#include "gl/system/gl_system.h"
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#include "gi.h"
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#include "m_png.h"
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#include "m_random.h"
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#include "st_stuff.h"
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#include "dobject.h"
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#include "doomstat.h"
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#include "g_level.h"
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#include "r_data/r_interpolate.h"
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#include "r_utility.h"
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#include "d_player.h"
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#include "p_effect.h"
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#include "sbar.h"
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#include "po_man.h"
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#include "r_utility.h"
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#include "a_hexenglobal.h"
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#include "p_local.h"
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#include "gl/gl_functions.h"
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#include "gl/dynlights/gl_lightbuffer.h"
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#include "gl/system/gl_interface.h"
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#include "gl/system/gl_framebuffer.h"
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#include "gl/system/gl_cvars.h"
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#include "gl/renderer/gl_lightdata.h"
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#include "gl/renderer/gl_renderstate.h"
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#include "gl/data/gl_data.h"
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#include "gl/data/gl_vertexbuffer.h"
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#include "gl/dynlights/gl_dynlight.h"
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#include "gl/models/gl_models.h"
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#include "gl/scene/gl_clipper.h"
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#include "gl/scene/gl_drawinfo.h"
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#include "gl/scene/gl_portal.h"
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#include "gl/shaders/gl_shader.h"
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#include "gl/textures/gl_material.h"
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#include "gl/utility/gl_clock.h"
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#include "gl/utility/gl_convert.h"
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#include "gl/utility/gl_templates.h"
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//==========================================================================
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//
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// CVARs
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//
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//==========================================================================
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CVAR(Bool, gl_texture, true, 0)
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CVAR(Bool, gl_no_skyclear, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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CVAR(Float, gl_mask_threshold, 0.5f,CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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CVAR(Float, gl_mask_sprite_threshold, 0.5f,CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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EXTERN_CVAR (Int, screenblocks)
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EXTERN_CVAR (Bool, cl_capfps)
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EXTERN_CVAR (Bool, r_deathcamera)
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extern int viewpitch;
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DWORD gl_fixedcolormap;
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area_t in_area;
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TArray<BYTE> currentmapsection;
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void gl_ParseDefs();
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//-----------------------------------------------------------------------------
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//
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// R_FrustumAngle
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//
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//-----------------------------------------------------------------------------
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angle_t FGLRenderer::FrustumAngle()
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{
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float tilt= fabs(mAngles.Pitch);
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// If the pitch is larger than this you can look all around at a FOV of 90<39>
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if (tilt>46.0f) return 0xffffffff;
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// ok, this is a gross hack that barely works...
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// but at least it doesn't overestimate too much...
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double floatangle=2.0+(45.0+((tilt/1.9)))*mCurrentFoV*48.0/BaseRatioSizes[WidescreenRatio][3]/90.0;
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angle_t a1 = FLOAT_TO_ANGLE(floatangle);
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if (a1>=ANGLE_180) return 0xffffffff;
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return a1;
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}
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//-----------------------------------------------------------------------------
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//
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// Sets the area the camera is in
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//
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//-----------------------------------------------------------------------------
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void FGLRenderer::SetViewArea()
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{
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// The render_sector is better suited to represent the current position in GL
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viewsector = R_PointInSubsector(viewx, viewy)->render_sector;
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// keep the view within the render sector's floor and ceiling
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fixed_t theZ = viewsector->ceilingplane.ZatPoint (viewx, viewy) - 4*FRACUNIT;
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if (viewz > theZ)
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{
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viewz = theZ;
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}
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theZ = viewsector->floorplane.ZatPoint (viewx, viewy) + 4*FRACUNIT;
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if (viewz < theZ)
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{
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viewz = theZ;
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}
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// Get the heightsec state from the render sector, not the current one!
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if (viewsector->heightsec && !(viewsector->heightsec->MoreFlags & SECF_IGNOREHEIGHTSEC))
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{
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in_area = viewz<=viewsector->heightsec->floorplane.ZatPoint(viewx,viewy) ? area_below :
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(viewz>viewsector->heightsec->ceilingplane.ZatPoint(viewx,viewy) &&
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!(viewsector->heightsec->MoreFlags&SECF_FAKEFLOORONLY)) ? area_above:area_normal;
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}
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else
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{
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in_area=area_default; // depends on exposed lower sectors
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}
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}
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//-----------------------------------------------------------------------------
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//
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// resets the 3D viewport
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//
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//-----------------------------------------------------------------------------
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void FGLRenderer::ResetViewport()
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{
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int trueheight = static_cast<OpenGLFrameBuffer*>(screen)->GetTrueHeight(); // ugh...
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glViewport(0, (trueheight-screen->GetHeight())/2, screen->GetWidth(), screen->GetHeight());
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}
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//-----------------------------------------------------------------------------
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//
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// sets 3D viewport and initial state
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//
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//-----------------------------------------------------------------------------
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void FGLRenderer::SetViewport(GL_IRECT *bounds)
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{
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if (!bounds)
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{
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int height, width;
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// Special handling so the view with a visible status bar displays properly
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if (screenblocks >= 10)
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{
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height = SCREENHEIGHT;
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width = SCREENWIDTH;
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}
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else
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{
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height = (screenblocks*SCREENHEIGHT/10) & ~7;
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width = (screenblocks*SCREENWIDTH/10);
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}
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int trueheight = static_cast<OpenGLFrameBuffer*>(screen)->GetTrueHeight(); // ugh...
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int bars = (trueheight-screen->GetHeight())/2;
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int vw = viewwidth;
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int vh = viewheight;
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glViewport(viewwindowx, trueheight-bars-(height+viewwindowy-((height-vh)/2)), vw, height);
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glScissor(viewwindowx, trueheight-bars-(vh+viewwindowy), vw, vh);
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}
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else
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{
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glViewport(bounds->left, bounds->top, bounds->width, bounds->height);
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glScissor(bounds->left, bounds->top, bounds->width, bounds->height);
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}
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glEnable(GL_SCISSOR_TEST);
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#ifdef _DEBUG
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glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
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#else
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glClear(GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
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#endif
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glEnable(GL_MULTISAMPLE);
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glEnable(GL_DEPTH_TEST);
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glEnable(GL_STENCIL_TEST);
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glStencilFunc(GL_ALWAYS,0,~0); // default stencil
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glStencilOp(GL_KEEP,GL_KEEP,GL_REPLACE);
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}
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//-----------------------------------------------------------------------------
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//
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// Setup the camera position
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//
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//-----------------------------------------------------------------------------
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void FGLRenderer::SetCameraPos(fixed_t viewx, fixed_t viewy, fixed_t viewz, angle_t viewangle)
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{
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float fviewangle=(float)(viewangle>>ANGLETOFINESHIFT)*360.0f/FINEANGLES;
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mAngles.Yaw = 270.0f-fviewangle;
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mViewVector = FVector2(cos(DEG2RAD(fviewangle)), sin(DEG2RAD(fviewangle)));
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mCameraPos = FVector3(FIXED2FLOAT(viewx), FIXED2FLOAT(viewy), FIXED2FLOAT(viewz));
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R_SetViewAngle();
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}
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//-----------------------------------------------------------------------------
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//
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// SetProjection
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// sets projection matrix
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//
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//-----------------------------------------------------------------------------
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void FGLRenderer::SetProjection(float fov, float ratio, float fovratio)
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{
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float fovy = 2 * RAD2DEG(atan(tan(DEG2RAD(fov) / 2) / fovratio));
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gl_RenderState.mProjectionMatrix.perspective(fovy, ratio, 5.f, 65536.f);
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gl_RenderState.Set2DMode(false);
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}
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//-----------------------------------------------------------------------------
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//
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// Setup the modelview matrix
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//
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//-----------------------------------------------------------------------------
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void FGLRenderer::SetViewMatrix(bool mirror, bool planemirror)
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{
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float mult = mirror? -1:1;
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float planemult = planemirror? -1:1;
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gl_RenderState.mViewMatrix.loadIdentity();
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gl_RenderState.mViewMatrix.rotate(GLRenderer->mAngles.Roll, 0.0f, 0.0f, 1.0f);
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gl_RenderState.mViewMatrix.rotate(GLRenderer->mAngles.Pitch, 1.0f, 0.0f, 0.0f);
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gl_RenderState.mViewMatrix.rotate(GLRenderer->mAngles.Yaw, 0.0f, mult, 0.0f);
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gl_RenderState.mViewMatrix.translate( GLRenderer->mCameraPos.X * mult, -GLRenderer->mCameraPos.Z*planemult, -GLRenderer->mCameraPos.Y);
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gl_RenderState.mViewMatrix.scale(-mult, planemult, 1);
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}
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//-----------------------------------------------------------------------------
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//
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// SetupView
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// Setup the view rotation matrix for the given viewpoint
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//
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//-----------------------------------------------------------------------------
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void FGLRenderer::SetupView(fixed_t viewx, fixed_t viewy, fixed_t viewz, angle_t viewangle, bool mirror, bool planemirror)
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{
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SetCameraPos(viewx, viewy, viewz, viewangle);
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SetViewMatrix(mirror, planemirror);
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gl_RenderState.ApplyMatrices();
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}
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//-----------------------------------------------------------------------------
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//
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// CreateScene
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//
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// creates the draw lists for the current scene
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//
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//-----------------------------------------------------------------------------
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void FGLRenderer::CreateScene()
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{
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// reset the portal manager
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GLPortal::StartFrame();
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PO_LinkToSubsectors();
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ProcessAll.Clock();
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// clip the scene and fill the drawlists
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for(unsigned i=0;i<portals.Size(); i++) portals[i]->glportal = NULL;
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gl_spriteindex=0;
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Bsp.Clock();
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gl_RenderBSPNode (nodes + numnodes - 1);
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Bsp.Unclock();
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// And now the crappy hacks that have to be done to avoid rendering anomalies:
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gl_drawinfo->HandleMissingTextures(); // Missing upper/lower textures
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gl_drawinfo->HandleHackedSubsectors(); // open sector hacks for deep water
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gl_drawinfo->ProcessSectorStacks(); // merge visplanes of sector stacks
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ProcessAll.Unclock();
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}
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//-----------------------------------------------------------------------------
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//
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// RenderScene
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//
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// Draws the current draw lists for the non GLSL renderer
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//
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//-----------------------------------------------------------------------------
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void FGLRenderer::RenderScene(int recursion)
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{
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RenderAll.Clock();
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glDepthMask(true);
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if (!gl_no_skyclear) GLPortal::RenderFirstSkyPortal(recursion);
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gl_RenderState.SetCameraPos(FIXED2FLOAT(viewx), FIXED2FLOAT(viewy), FIXED2FLOAT(viewz));
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gl_RenderState.EnableFog(true);
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gl_RenderState.BlendFunc(GL_ONE,GL_ZERO);
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gl_drawinfo->drawlists[GLDL_PLAIN].Sort();
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gl_drawinfo->drawlists[GLDL_MASKED].Sort();
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gl_drawinfo->drawlists[GLDL_MASKEDOFS].Sort();
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// if we don't have a persistently mapped buffer, we have to process all the dynamic lights up front,
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// so that we don't have to do repeated map/unmap calls on the buffer.
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if (mLightCount > 0 && gl_fixedcolormap == CM_DEFAULT && gl_lights && !(gl.flags & RFL_BUFFER_STORAGE))
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{
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GLRenderer->mLights->Begin();
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gl_drawinfo->drawlists[GLDL_PLAIN].Draw(GLPASS_LIGHTSONLY);
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gl_drawinfo->drawlists[GLDL_MASKED].Draw(GLPASS_LIGHTSONLY);
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gl_drawinfo->drawlists[GLDL_MASKEDOFS].Draw(GLPASS_LIGHTSONLY);
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gl_drawinfo->drawlists[GLDL_TRANSLUCENTBORDER].Draw(GLPASS_LIGHTSONLY);
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gl_drawinfo->drawlists[GLDL_TRANSLUCENT].Draw(GLPASS_LIGHTSONLY);
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GLRenderer->mLights->Finish();
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}
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// Part 1: solid geometry. This is set up so that there are no transparent parts
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glDepthFunc(GL_LESS);
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gl_RenderState.AlphaFunc(GL_GEQUAL, 0.f);
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glDisable(GL_POLYGON_OFFSET_FILL);
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int pass;
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if (mLightCount > 0 && gl_fixedcolormap == CM_DEFAULT && gl_lights && (gl.flags & RFL_BUFFER_STORAGE))
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{
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pass = GLPASS_ALL;
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}
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else
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{
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pass = GLPASS_PLAIN;
|
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}
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gl_RenderState.EnableTexture(gl_texture);
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gl_RenderState.EnableBrightmap(true);
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gl_drawinfo->drawlists[GLDL_PLAIN].Draw(pass);
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// Part 2: masked geometry. This is set up so that only pixels with alpha>gl_mask_threshold will show
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if (!gl_texture)
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{
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gl_RenderState.EnableTexture(true);
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gl_RenderState.SetTextureMode(TM_MASK);
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}
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gl_RenderState.AlphaFunc(GL_GEQUAL, gl_mask_threshold);
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gl_drawinfo->drawlists[GLDL_MASKED].Draw(pass);
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|
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// Part 3: masked geometry with polygon offset. This list is empty most of the time so only waste time on it when in use.
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if (gl_drawinfo->drawlists[GLDL_MASKEDOFS].Size() > 0)
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{
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glEnable(GL_POLYGON_OFFSET_FILL);
|
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glPolygonOffset(-1.0f, -128.0f);
|
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gl_drawinfo->drawlists[GLDL_MASKEDOFS].Draw(pass);
|
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glDisable(GL_POLYGON_OFFSET_FILL);
|
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glPolygonOffset(0, 0);
|
||
}
|
||
|
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gl_drawinfo->drawlists[GLDL_MODELS].Draw(pass);
|
||
|
||
gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
||
|
||
// Part 4: Draw decals (not a real pass)
|
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glDepthFunc(GL_LEQUAL);
|
||
glEnable(GL_POLYGON_OFFSET_FILL);
|
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glPolygonOffset(-1.0f, -128.0f);
|
||
glDepthMask(false);
|
||
|
||
for(int i=0; i<GLDL_TRANSLUCENT; i++)
|
||
{
|
||
gl_drawinfo->drawlists[i].Draw(GLPASS_DECALS);
|
||
}
|
||
|
||
gl_RenderState.SetTextureMode(TM_MODULATE);
|
||
|
||
glDepthMask(true);
|
||
|
||
|
||
// Push bleeding floor/ceiling textures back a little in the z-buffer
|
||
// so they don't interfere with overlapping mid textures.
|
||
glPolygonOffset(1.0f, 128.0f);
|
||
|
||
// Part 5: flood all the gaps with the back sector's flat texture
|
||
// This will always be drawn like GLDL_PLAIN, depending on the fog settings
|
||
|
||
glDepthMask(false); // don't write to Z-buffer!
|
||
gl_RenderState.EnableFog(true);
|
||
gl_RenderState.AlphaFunc(GL_GEQUAL, 0.f);
|
||
gl_RenderState.BlendFunc(GL_ONE,GL_ZERO);
|
||
gl_drawinfo->DrawUnhandledMissingTextures();
|
||
glDepthMask(true);
|
||
|
||
glPolygonOffset(0.0f, 0.0f);
|
||
glDisable(GL_POLYGON_OFFSET_FILL);
|
||
|
||
RenderAll.Unclock();
|
||
}
|
||
|
||
//-----------------------------------------------------------------------------
|
||
//
|
||
// RenderTranslucent
|
||
//
|
||
// Draws the current draw lists for the non GLSL renderer
|
||
//
|
||
//-----------------------------------------------------------------------------
|
||
|
||
void FGLRenderer::RenderTranslucent()
|
||
{
|
||
RenderAll.Clock();
|
||
|
||
glDepthMask(false);
|
||
gl_RenderState.SetCameraPos(FIXED2FLOAT(viewx), FIXED2FLOAT(viewy), FIXED2FLOAT(viewz));
|
||
|
||
// final pass: translucent stuff
|
||
gl_RenderState.AlphaFunc(GL_GEQUAL, gl_mask_sprite_threshold);
|
||
gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
||
|
||
gl_RenderState.EnableBrightmap(true);
|
||
gl_drawinfo->drawlists[GLDL_TRANSLUCENTBORDER].Draw(GLPASS_TRANSLUCENT);
|
||
gl_drawinfo->drawlists[GLDL_TRANSLUCENT].DrawSorted();
|
||
gl_RenderState.EnableBrightmap(false);
|
||
|
||
glDepthMask(true);
|
||
|
||
gl_RenderState.AlphaFunc(GL_GEQUAL, 0.5f);
|
||
RenderAll.Unclock();
|
||
}
|
||
|
||
|
||
//-----------------------------------------------------------------------------
|
||
//
|
||
// gl_drawscene - this function renders the scene from the current
|
||
// viewpoint, including mirrors and skyboxes and other portals
|
||
// It is assumed that the GLPortal::EndFrame returns with the
|
||
// stencil, z-buffer and the projection matrix intact!
|
||
//
|
||
//-----------------------------------------------------------------------------
|
||
EXTERN_CVAR(Bool, gl_draw_sync)
|
||
|
||
void FGLRenderer::DrawScene(bool toscreen)
|
||
{
|
||
static int recursion=0;
|
||
|
||
CreateScene();
|
||
GLRenderer->mCurrentPortal = NULL; // this must be reset before any portal recursion takes place.
|
||
|
||
// Up to this point in the main draw call no rendering is performed so we can wait
|
||
// with swapping the render buffer until now.
|
||
if (!gl_draw_sync && toscreen)
|
||
{
|
||
All.Unclock();
|
||
static_cast<OpenGLFrameBuffer*>(screen)->Swap();
|
||
All.Clock();
|
||
}
|
||
RenderScene(recursion);
|
||
|
||
// Handle all portals after rendering the opaque objects but before
|
||
// doing all translucent stuff
|
||
recursion++;
|
||
GLPortal::EndFrame();
|
||
recursion--;
|
||
RenderTranslucent();
|
||
}
|
||
|
||
|
||
static void FillScreen()
|
||
{
|
||
gl_RenderState.AlphaFunc(GL_GEQUAL, 0.f);
|
||
gl_RenderState.EnableTexture(false);
|
||
gl_RenderState.Apply();
|
||
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
|
||
ptr->Set(0, 0, 0, 0, 0);
|
||
ptr++;
|
||
ptr->Set(0, (float)SCREENHEIGHT, 0, 0, 0);
|
||
ptr++;
|
||
ptr->Set((float)SCREENWIDTH, 0, 0, 0, 0);
|
||
ptr++;
|
||
ptr->Set((float)SCREENWIDTH, (float)SCREENHEIGHT, 0, 0, 0);
|
||
ptr++;
|
||
GLRenderer->mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
|
||
}
|
||
|
||
//==========================================================================
|
||
//
|
||
// Draws a blend over the entire view
|
||
//
|
||
//==========================================================================
|
||
void FGLRenderer::DrawBlend(sector_t * viewsector)
|
||
{
|
||
float blend[4]={0,0,0,0};
|
||
PalEntry blendv=0;
|
||
float extra_red;
|
||
float extra_green;
|
||
float extra_blue;
|
||
player_t *player = NULL;
|
||
|
||
if (players[consoleplayer].camera != NULL)
|
||
{
|
||
player=players[consoleplayer].camera->player;
|
||
}
|
||
|
||
// don't draw sector based blends when an invulnerability colormap is active
|
||
if (!gl_fixedcolormap)
|
||
{
|
||
if (!viewsector->e->XFloor.ffloors.Size())
|
||
{
|
||
if (viewsector->heightsec && !(viewsector->MoreFlags&SECF_IGNOREHEIGHTSEC))
|
||
{
|
||
switch (in_area)
|
||
{
|
||
default:
|
||
case area_normal: blendv = viewsector->heightsec->midmap; break;
|
||
case area_above: blendv = viewsector->heightsec->topmap; break;
|
||
case area_below: blendv = viewsector->heightsec->bottommap; break;
|
||
}
|
||
}
|
||
}
|
||
else
|
||
{
|
||
TArray<lightlist_t> & lightlist = viewsector->e->XFloor.lightlist;
|
||
|
||
for (unsigned int i = 0; i < lightlist.Size(); i++)
|
||
{
|
||
fixed_t lightbottom;
|
||
if (i < lightlist.Size() - 1)
|
||
lightbottom = lightlist[i + 1].plane.ZatPoint(viewx, viewy);
|
||
else
|
||
lightbottom = viewsector->floorplane.ZatPoint(viewx, viewy);
|
||
|
||
if (lightbottom < viewz && (!lightlist[i].caster || !(lightlist[i].caster->flags&FF_FADEWALLS)))
|
||
{
|
||
// 3d floor 'fog' is rendered as a blending value
|
||
blendv = lightlist[i].blend;
|
||
// If this is the same as the sector's it doesn't apply!
|
||
if (blendv == viewsector->ColorMap->Fade) blendv = 0;
|
||
// a little hack to make this work for Legacy maps.
|
||
if (blendv.a == 0 && blendv != 0) blendv.a = 128;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (blendv.a == 0)
|
||
{
|
||
blendv = R_BlendForColormap(blendv);
|
||
if (blendv.a == 255)
|
||
{
|
||
// The calculated average is too dark so brighten it according to the palettes's overall brightness
|
||
int maxcol = MAX<int>(MAX<int>(framebuffer->palette_brightness, blendv.r), MAX<int>(blendv.g, blendv.b));
|
||
blendv.r = blendv.r * 255 / maxcol;
|
||
blendv.g = blendv.g * 255 / maxcol;
|
||
blendv.b = blendv.b * 255 / maxcol;
|
||
}
|
||
}
|
||
|
||
if (blendv.a == 255)
|
||
{
|
||
|
||
extra_red = blendv.r / 255.0f;
|
||
extra_green = blendv.g / 255.0f;
|
||
extra_blue = blendv.b / 255.0f;
|
||
|
||
// If this is a multiplicative blend do it separately and add the additive ones on top of it.
|
||
blendv = 0;
|
||
|
||
// black multiplicative blends are ignored
|
||
if (extra_red || extra_green || extra_blue)
|
||
{
|
||
gl_RenderState.BlendFunc(GL_DST_COLOR, GL_ZERO);
|
||
gl_RenderState.SetColor(extra_red, extra_green, extra_blue, 1.0f);
|
||
FillScreen();
|
||
}
|
||
}
|
||
else if (blendv.a)
|
||
{
|
||
V_AddBlend(blendv.r / 255.f, blendv.g / 255.f, blendv.b / 255.f, blendv.a / 255.0f, blend);
|
||
}
|
||
}
|
||
|
||
// This mostly duplicates the code in shared_sbar.cpp
|
||
// When I was writing this the original was called too late so that I
|
||
// couldn't get the blend in time. However, since then I made some changes
|
||
// here that would get lost if I switched back so I won't do it.
|
||
|
||
if (player)
|
||
{
|
||
V_AddPlayerBlend(player, blend, 0.5, 175);
|
||
}
|
||
|
||
if (players[consoleplayer].camera != NULL)
|
||
{
|
||
// except for fadeto effects
|
||
player_t *player = (players[consoleplayer].camera->player != NULL) ? players[consoleplayer].camera->player : &players[consoleplayer];
|
||
V_AddBlend (player->BlendR, player->BlendG, player->BlendB, player->BlendA, blend);
|
||
}
|
||
|
||
if (blend[3]>0.0f)
|
||
{
|
||
gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
||
gl_RenderState.SetColor(blend[0], blend[1], blend[2], blend[3]);
|
||
FillScreen();
|
||
}
|
||
}
|
||
|
||
|
||
//-----------------------------------------------------------------------------
|
||
//
|
||
// Draws player sprites and color blend
|
||
//
|
||
//-----------------------------------------------------------------------------
|
||
|
||
|
||
void FGLRenderer::EndDrawScene(sector_t * viewsector)
|
||
{
|
||
gl_RenderState.EnableFog(false);
|
||
|
||
// [BB] HUD models need to be rendered here. Make sure that
|
||
// DrawPlayerSprites is only called once. Either to draw
|
||
// HUD models or to draw the weapon sprites.
|
||
const bool renderHUDModel = gl_IsHUDModelForPlayerAvailable( players[consoleplayer].camera->player );
|
||
if ( renderHUDModel )
|
||
{
|
||
// [BB] The HUD model should be drawn over everything else already drawn.
|
||
glClear(GL_DEPTH_BUFFER_BIT);
|
||
DrawPlayerSprites (viewsector, true);
|
||
}
|
||
|
||
glDisable(GL_STENCIL_TEST);
|
||
|
||
framebuffer->Begin2D(false);
|
||
|
||
ResetViewport();
|
||
// [BB] Only draw the sprites if we didn't render a HUD model before.
|
||
if ( renderHUDModel == false )
|
||
{
|
||
DrawPlayerSprites (viewsector, false);
|
||
}
|
||
gl_RenderState.SetFixedColormap(CM_DEFAULT);
|
||
gl_RenderState.SetSoftLightLevel(-1);
|
||
DrawTargeterSprites();
|
||
DrawBlend(viewsector);
|
||
|
||
// Restore standard rendering state
|
||
gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
||
gl_RenderState.ResetColor();
|
||
gl_RenderState.EnableTexture(true);
|
||
glDisable(GL_SCISSOR_TEST);
|
||
}
|
||
|
||
|
||
//-----------------------------------------------------------------------------
|
||
//
|
||
// R_RenderView - renders one view - either the screen or a camera texture
|
||
//
|
||
//-----------------------------------------------------------------------------
|
||
|
||
void FGLRenderer::ProcessScene(bool toscreen)
|
||
{
|
||
FDrawInfo::StartDrawInfo();
|
||
iter_dlightf = iter_dlight = draw_dlight = draw_dlightf = 0;
|
||
GLPortal::BeginScene();
|
||
|
||
int mapsection = R_PointInSubsector(viewx, viewy)->mapsection;
|
||
memset(¤tmapsection[0], 0, currentmapsection.Size());
|
||
currentmapsection[mapsection>>3] |= 1 << (mapsection & 7);
|
||
DrawScene(toscreen);
|
||
FDrawInfo::EndDrawInfo();
|
||
|
||
}
|
||
|
||
//-----------------------------------------------------------------------------
|
||
//
|
||
// gl_SetFixedColormap
|
||
//
|
||
//-----------------------------------------------------------------------------
|
||
|
||
void FGLRenderer::SetFixedColormap (player_t *player)
|
||
{
|
||
gl_fixedcolormap=CM_DEFAULT;
|
||
|
||
// check for special colormaps
|
||
player_t * cplayer = player->camera->player;
|
||
if (cplayer)
|
||
{
|
||
if (cplayer->extralight == INT_MIN)
|
||
{
|
||
gl_fixedcolormap=CM_FIRSTSPECIALCOLORMAP + INVERSECOLORMAP;
|
||
extralight=0;
|
||
}
|
||
else if (cplayer->fixedcolormap != NOFIXEDCOLORMAP)
|
||
{
|
||
gl_fixedcolormap = CM_FIRSTSPECIALCOLORMAP + cplayer->fixedcolormap;
|
||
}
|
||
else if (cplayer->fixedlightlevel != -1)
|
||
{
|
||
for(AInventory * in = cplayer->mo->Inventory; in; in = in->Inventory)
|
||
{
|
||
PalEntry color = in->GetBlend ();
|
||
|
||
// Need special handling for light amplifiers
|
||
if (in->IsKindOf(RUNTIME_CLASS(APowerTorch)))
|
||
{
|
||
gl_fixedcolormap = cplayer->fixedlightlevel + CM_TORCH;
|
||
}
|
||
else if (in->IsKindOf(RUNTIME_CLASS(APowerLightAmp)))
|
||
{
|
||
gl_fixedcolormap = CM_LITE;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
gl_RenderState.SetFixedColormap(gl_fixedcolormap);
|
||
}
|
||
|
||
//-----------------------------------------------------------------------------
|
||
//
|
||
// Renders one viewpoint in a scene
|
||
//
|
||
//-----------------------------------------------------------------------------
|
||
|
||
sector_t * FGLRenderer::RenderViewpoint (AActor * camera, GL_IRECT * bounds, float fov, float ratio, float fovratio, bool mainview, bool toscreen)
|
||
{
|
||
sector_t * retval;
|
||
R_SetupFrame (camera);
|
||
SetViewArea();
|
||
mAngles.Pitch = clamp<float>((float)((double)(int)(viewpitch))/ANGLE_1, -90, 90);
|
||
|
||
// Scroll the sky
|
||
mSky1Pos = (float)fmod(gl_frameMS * level.skyspeed1, 1024.f) * 90.f/256.f;
|
||
mSky2Pos = (float)fmod(gl_frameMS * level.skyspeed2, 1024.f) * 90.f/256.f;
|
||
|
||
|
||
|
||
if (camera->player && camera->player-players==consoleplayer &&
|
||
((camera->player->cheats & CF_CHASECAM) || (r_deathcamera && camera->health <= 0)) && camera==camera->player->mo)
|
||
{
|
||
mViewActor=NULL;
|
||
}
|
||
else
|
||
{
|
||
mViewActor=camera;
|
||
}
|
||
|
||
retval = viewsector;
|
||
|
||
SetViewport(bounds);
|
||
mCurrentFoV = fov;
|
||
SetProjection(fov, ratio, fovratio); // switch to perspective mode and set up clipper
|
||
SetCameraPos(viewx, viewy, viewz, viewangle);
|
||
SetViewMatrix(false, false);
|
||
gl_RenderState.ApplyMatrices();
|
||
GLRenderer->mLights->Clear();
|
||
|
||
clipper.Clear();
|
||
angle_t a1 = FrustumAngle();
|
||
clipper.SafeAddClipRangeRealAngles(viewangle+a1, viewangle-a1);
|
||
|
||
ProcessScene(toscreen);
|
||
|
||
gl_frameCount++; // This counter must be increased right before the interpolations are restored.
|
||
interpolator.RestoreInterpolations ();
|
||
return retval;
|
||
}
|
||
|
||
|
||
//-----------------------------------------------------------------------------
|
||
//
|
||
// renders the view
|
||
//
|
||
//-----------------------------------------------------------------------------
|
||
|
||
void FGLRenderer::RenderView (player_t* player)
|
||
{
|
||
OpenGLFrameBuffer* GLTarget = static_cast<OpenGLFrameBuffer*>(screen);
|
||
AActor *&LastCamera = GLTarget->LastCamera;
|
||
|
||
if (player->camera != LastCamera)
|
||
{
|
||
// If the camera changed don't interpolate
|
||
// Otherwise there will be some not so nice effects.
|
||
R_ResetViewInterpolation();
|
||
LastCamera=player->camera;
|
||
}
|
||
|
||
gl_RenderState.SetVertexBuffer(mVBO);
|
||
GLRenderer->mVBO->Reset();
|
||
|
||
// reset statistics counters
|
||
ResetProfilingData();
|
||
|
||
// Get this before everything else
|
||
if (cl_capfps || r_NoInterpolate) r_TicFrac = FRACUNIT;
|
||
else r_TicFrac = I_GetTimeFrac (&r_FrameTime);
|
||
gl_frameMS = I_MSTime();
|
||
|
||
P_FindParticleSubsectors ();
|
||
|
||
// prepare all camera textures that have been used in the last frame
|
||
FCanvasTextureInfo::UpdateAll();
|
||
|
||
|
||
// I stopped using BaseRatioSizes here because the information there wasn't well presented.
|
||
#define RMUL (1.6f/1.333333f)
|
||
// 4:3 16:9 16:10 17:10 5:4
|
||
static float ratios[]={RMUL*1.333333f, RMUL*1.777777f, RMUL*1.6f, RMUL*1.7f, RMUL*1.25f};
|
||
|
||
// now render the main view
|
||
float fovratio;
|
||
float ratio = ratios[WidescreenRatio];
|
||
if (!(WidescreenRatio&4))
|
||
{
|
||
fovratio = 1.6f;
|
||
}
|
||
else
|
||
{
|
||
fovratio = ratio;
|
||
}
|
||
|
||
SetFixedColormap (player);
|
||
|
||
// Check if there's some lights. If not some code can be skipped.
|
||
TThinkerIterator<ADynamicLight> it(STAT_DLIGHT);
|
||
GLRenderer->mLightCount = ((it.Next()) != NULL);
|
||
|
||
sector_t * viewsector = RenderViewpoint(player->camera, NULL, FieldOfView * 360.0f / FINEANGLES, ratio, fovratio, true, true);
|
||
EndDrawScene(viewsector);
|
||
|
||
All.Unclock();
|
||
}
|
||
|
||
//===========================================================================
|
||
//
|
||
// Render the view to a savegame picture
|
||
//
|
||
//===========================================================================
|
||
|
||
void FGLRenderer::WriteSavePic (player_t *player, FILE *file, int width, int height)
|
||
{
|
||
GL_IRECT bounds;
|
||
|
||
bounds.left=0;
|
||
bounds.top=0;
|
||
bounds.width=width;
|
||
bounds.height=height;
|
||
glFlush();
|
||
SetFixedColormap(player);
|
||
gl_RenderState.SetVertexBuffer(mVBO);
|
||
GLRenderer->mVBO->Reset();
|
||
|
||
// Check if there's some lights. If not some code can be skipped.
|
||
TThinkerIterator<ADynamicLight> it(STAT_DLIGHT);
|
||
GLRenderer->mLightCount = ((it.Next()) != NULL);
|
||
|
||
sector_t *viewsector = RenderViewpoint(players[consoleplayer].camera, &bounds,
|
||
FieldOfView * 360.0f / FINEANGLES, 1.6f, 1.6f, true, false);
|
||
glDisable(GL_STENCIL_TEST);
|
||
gl_RenderState.SetFixedColormap(CM_DEFAULT);
|
||
gl_RenderState.SetSoftLightLevel(-1);
|
||
screen->Begin2D(false);
|
||
DrawBlend(viewsector);
|
||
glFlush();
|
||
|
||
byte * scr = (byte *)M_Malloc(width * height * 3);
|
||
glReadPixels(0,0,width, height,GL_RGB,GL_UNSIGNED_BYTE,scr);
|
||
M_CreatePNG (file, scr + ((height-1) * width * 3), NULL, SS_RGB, width, height, -width*3);
|
||
M_Free(scr);
|
||
}
|
||
|
||
|
||
//===========================================================================
|
||
//
|
||
//
|
||
//
|
||
//===========================================================================
|
||
|
||
struct FGLInterface : public FRenderer
|
||
{
|
||
bool UsesColormap() const;
|
||
void PrecacheTexture(FTexture *tex, int cache);
|
||
void RenderView(player_t *player);
|
||
void WriteSavePic (player_t *player, FILE *file, int width, int height);
|
||
void StateChanged(AActor *actor);
|
||
void StartSerialize(FArchive &arc);
|
||
void EndSerialize(FArchive &arc);
|
||
void RenderTextureView (FCanvasTexture *self, AActor *viewpoint, int fov);
|
||
sector_t *FakeFlat(sector_t *sec, sector_t *tempsec, int *floorlightlevel, int *ceilinglightlevel, bool back);
|
||
void SetFogParams(int _fogdensity, PalEntry _outsidefogcolor, int _outsidefogdensity, int _skyfog);
|
||
void PreprocessLevel();
|
||
void CleanLevelData();
|
||
bool RequireGLNodes();
|
||
|
||
int GetMaxViewPitch(bool down);
|
||
void ClearBuffer(int color);
|
||
void Init();
|
||
};
|
||
|
||
//===========================================================================
|
||
//
|
||
// The GL renderer has no use for colormaps so let's
|
||
// not create them and save us some time.
|
||
//
|
||
//===========================================================================
|
||
|
||
bool FGLInterface::UsesColormap() const
|
||
{
|
||
return false;
|
||
}
|
||
|
||
//==========================================================================
|
||
//
|
||
// DFrameBuffer :: PrecacheTexture
|
||
//
|
||
//==========================================================================
|
||
|
||
void FGLInterface::PrecacheTexture(FTexture *tex, int cache)
|
||
{
|
||
if (tex != NULL)
|
||
{
|
||
if (cache)
|
||
{
|
||
tex->PrecacheGL(cache);
|
||
}
|
||
else
|
||
{
|
||
tex->UncacheGL();
|
||
}
|
||
}
|
||
}
|
||
|
||
//==========================================================================
|
||
//
|
||
// DFrameBuffer :: StateChanged
|
||
//
|
||
//==========================================================================
|
||
|
||
void FGLInterface::StateChanged(AActor *actor)
|
||
{
|
||
gl_SetActorLights(actor);
|
||
}
|
||
|
||
//===========================================================================
|
||
//
|
||
// notify the renderer that serialization of the curent level is about to start/end
|
||
//
|
||
//===========================================================================
|
||
|
||
void FGLInterface::StartSerialize(FArchive &arc)
|
||
{
|
||
gl_DeleteAllAttachedLights();
|
||
arc << fogdensity << outsidefogdensity << skyfog;
|
||
}
|
||
|
||
void FGLInterface::EndSerialize(FArchive &arc)
|
||
{
|
||
gl_RecreateAllAttachedLights();
|
||
if (arc.IsLoading()) gl_InitPortals();
|
||
}
|
||
|
||
//===========================================================================
|
||
//
|
||
// Get max. view angle (renderer specific information so it goes here now)
|
||
//
|
||
//===========================================================================
|
||
|
||
EXTERN_CVAR(Float, maxviewpitch)
|
||
|
||
int FGLInterface::GetMaxViewPitch(bool down)
|
||
{
|
||
return int(maxviewpitch);
|
||
}
|
||
|
||
//===========================================================================
|
||
//
|
||
//
|
||
//
|
||
//===========================================================================
|
||
|
||
void FGLInterface::ClearBuffer(int color)
|
||
{
|
||
PalEntry pe = GPalette.BaseColors[color];
|
||
glClearColor(pe.r/255.f, pe.g/255.f, pe.b/255.f, 1.f);
|
||
glClear(GL_COLOR_BUFFER_BIT);
|
||
}
|
||
|
||
//===========================================================================
|
||
//
|
||
// Render the view to a savegame picture
|
||
//
|
||
//===========================================================================
|
||
|
||
void FGLInterface::WriteSavePic (player_t *player, FILE *file, int width, int height)
|
||
{
|
||
GLRenderer->WriteSavePic(player, file, width, height);
|
||
}
|
||
|
||
//===========================================================================
|
||
//
|
||
//
|
||
//
|
||
//===========================================================================
|
||
|
||
void FGLInterface::RenderView(player_t *player)
|
||
{
|
||
GLRenderer->RenderView(player);
|
||
}
|
||
|
||
//===========================================================================
|
||
//
|
||
//
|
||
//
|
||
//===========================================================================
|
||
|
||
void FGLInterface::Init()
|
||
{
|
||
gl_ParseDefs();
|
||
gl_InitData();
|
||
}
|
||
|
||
//===========================================================================
|
||
//
|
||
// Camera texture rendering
|
||
//
|
||
//===========================================================================
|
||
CVAR(Bool, gl_usefb, false , CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
|
||
extern TexFilter_s TexFilter[];
|
||
|
||
void FGLInterface::RenderTextureView (FCanvasTexture *tex, AActor *Viewpoint, int FOV)
|
||
{
|
||
FMaterial * gltex = FMaterial::ValidateTexture(tex, false);
|
||
|
||
int width = gltex->TextureWidth();
|
||
int height = gltex->TextureHeight();
|
||
|
||
gl_fixedcolormap=CM_DEFAULT;
|
||
gl_RenderState.SetFixedColormap(CM_DEFAULT);
|
||
|
||
bool usefb = gl_usefb || width > screen->GetWidth() || height > screen->GetHeight();
|
||
if (!usefb)
|
||
{
|
||
glFlush();
|
||
}
|
||
else
|
||
{
|
||
#if defined(_WIN32) && (defined(_MSC_VER) || defined(__INTEL_COMPILER))
|
||
__try
|
||
#endif
|
||
{
|
||
GLRenderer->StartOffscreen();
|
||
gltex->BindToFrameBuffer();
|
||
}
|
||
#if defined(_WIN32) && (defined(_MSC_VER) || defined(__INTEL_COMPILER))
|
||
__except(1)
|
||
{
|
||
usefb = false;
|
||
gl_usefb = false;
|
||
GLRenderer->EndOffscreen();
|
||
glFlush();
|
||
}
|
||
#endif
|
||
}
|
||
|
||
GL_IRECT bounds;
|
||
bounds.left=bounds.top=0;
|
||
bounds.width=FHardwareTexture::GetTexDimension(gltex->GetWidth());
|
||
bounds.height=FHardwareTexture::GetTexDimension(gltex->GetHeight());
|
||
|
||
GLRenderer->RenderViewpoint(Viewpoint, &bounds, FOV, (float)width/height, (float)width/height, false, false);
|
||
|
||
if (!usefb)
|
||
{
|
||
glFlush();
|
||
gltex->Bind(0, 0, -1, false);
|
||
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, bounds.width, bounds.height);
|
||
}
|
||
else
|
||
{
|
||
GLRenderer->EndOffscreen();
|
||
}
|
||
|
||
tex->SetUpdated();
|
||
}
|
||
|
||
//==========================================================================
|
||
//
|
||
//
|
||
//
|
||
//==========================================================================
|
||
|
||
sector_t *FGLInterface::FakeFlat(sector_t *sec, sector_t *tempsec, int *floorlightlevel, int *ceilinglightlevel, bool back)
|
||
{
|
||
if (floorlightlevel != NULL)
|
||
{
|
||
*floorlightlevel = sec->GetFloorLight ();
|
||
}
|
||
if (ceilinglightlevel != NULL)
|
||
{
|
||
*ceilinglightlevel = sec->GetCeilingLight ();
|
||
}
|
||
return gl_FakeFlat(sec, tempsec, back);
|
||
}
|
||
|
||
//===========================================================================
|
||
//
|
||
//
|
||
//
|
||
//===========================================================================
|
||
|
||
void FGLInterface::SetFogParams(int _fogdensity, PalEntry _outsidefogcolor, int _outsidefogdensity, int _skyfog)
|
||
{
|
||
gl_SetFogParams(_fogdensity, _outsidefogcolor, _outsidefogdensity, _skyfog);
|
||
}
|
||
|
||
void FGLInterface::PreprocessLevel()
|
||
{
|
||
gl_PreprocessLevel();
|
||
}
|
||
|
||
void FGLInterface::CleanLevelData()
|
||
{
|
||
gl_CleanLevelData();
|
||
}
|
||
|
||
bool FGLInterface::RequireGLNodes()
|
||
{
|
||
return true;
|
||
}
|
||
|
||
//===========================================================================
|
||
//
|
||
//
|
||
//
|
||
//===========================================================================
|
||
|
||
FRenderer *gl_CreateInterface()
|
||
{
|
||
return new FGLInterface;
|
||
}
|
||
|
||
|