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- moved the screen blending code out of the renderer.

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This is better be made part of the 2D interface.
That would have been done long ago if it hadn't been for the totally incompatible way this was handled by the purely paletted software renderer.
Now with that out of the way there is no point keeping this code this deeply embedded in the renderer.
This commit is contained in:
Christoph Oelckers 2018-05-05 11:20:37 +02:00
commit de15b589c0
13 changed files with 140 additions and 175 deletions
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147
src/gl/renderer/gl_renderer.cpp
View file

@ -66,7 +66,6 @@
EXTERN_CVAR(Int, screenblocks)
EXTERN_CVAR(Bool, cl_capfps)
EXTERN_CVAR(Float, underwater_fade_scalar)
CVAR(Bool, gl_scale_viewport, true, CVAR_ARCHIVE);
extern bool NoInterpolateView;
@ -401,15 +400,16 @@ void FGLRenderer::EndOffscreen()
//
//-----------------------------------------------------------------------------
void FGLRenderer::RenderView(player_t* player)
sector_t *FGLRenderer::RenderView(player_t* player)
{
gl_RenderState.SetVertexBuffer(mVBO);
mVBO->Reset();
sector_t *retsec;
if (!V_IsHardwareRenderer())
{
if (swdrawer == nullptr) swdrawer = new SWSceneDrawer;
swdrawer->RenderView(player);
retsec = swdrawer->RenderView(player);
}
else
{
@ -451,10 +451,10 @@ void FGLRenderer::RenderView(player_t* player)
drawer.SetFixedColormap(player);
mShadowMap.Update();
sector_t * viewsector = drawer.RenderViewpoint(player->camera, NULL, r_viewpoint.FieldOfView.Degrees, ratio, fovratio, true, true);
retsec = drawer.RenderViewpoint(player->camera, NULL, r_viewpoint.FieldOfView.Degrees, ratio, fovratio, true, true);
}
All.Unclock();
return retsec;
}
//===========================================================================
@ -519,143 +519,6 @@ void FGLRenderer::BeginFrame()
buffersActive = GLRenderer->mBuffers->Setup(GLRenderer->mScreenViewport.width, GLRenderer->mScreenViewport.height, GLRenderer->mSceneViewport.width, GLRenderer->mSceneViewport.height);
}
void gl_FillScreen()
{
gl_RenderState.AlphaFunc(GL_GEQUAL, 0.f);
gl_RenderState.EnableTexture(false);
gl_RenderState.Apply();
// The fullscreen quad is stored at index 4 in the main vertex buffer.
GLRenderer->mVBO->RenderArray(GL_TRIANGLE_STRIP, FFlatVertexBuffer::FULLSCREEN_INDEX, 4);
}
//==========================================================================
//
// Draws a blend over the entire view
//
//==========================================================================
void FGLRenderer::DrawBlend(sector_t * viewsector, bool FixedColormap, bool docolormap, bool in2d)
{
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 (!FixedColormap)
{
if (!viewsector->e->XFloor.ffloors.Size())
{
if (viewsector->GetHeightSec())
{
auto s = viewsector->heightsec;
blendv = s->floorplane.PointOnSide(r_viewpoint.Pos) < 0? s->bottommap : s->ceilingplane.PointOnSide(r_viewpoint.Pos) < 0 ? s->topmap : s->midmap;
}
}
else
{
TArray<lightlist_t> & lightlist = viewsector->e->XFloor.lightlist;
for (unsigned int i = 0; i < lightlist.Size(); i++)
{
double lightbottom;
if (i < lightlist.Size() - 1)
lightbottom = lightlist[i + 1].plane.ZatPoint(r_viewpoint.Pos);
else
lightbottom = viewsector->floorplane.ZatPoint(r_viewpoint.Pos);
if (lightbottom < r_viewpoint.Pos.Z && (!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.FadeColor) 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 && docolormap)
{
blendv = R_BlendForColormap(blendv);
}
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.
// black multiplicative blends are ignored
if (extra_red || extra_green || extra_blue)
{
if (!in2d)
{
gl_RenderState.BlendFunc(GL_DST_COLOR, GL_ZERO);
gl_RenderState.SetColor(extra_red, extra_green, extra_blue, 1.0f);
gl_FillScreen();
}
else
{
screen->Dim(blendv, 1, 0, 0, screen->GetWidth(), screen->GetHeight(), &LegacyRenderStyles[STYLE_Multiply]);
}
}
blendv = 0;
}
else if (blendv.a)
{
// [Nash] allow user to set blend intensity
int cnt = blendv.a;
cnt = (int)(cnt * underwater_fade_scalar);
V_AddBlend(blendv.r / 255.f, blendv.g / 255.f, blendv.b / 255.f, cnt / 255.0f, blend);
}
}
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 (!in2d)
{
gl_RenderState.SetTextureMode(TM_MODULATE);
gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
if (blend[3] > 0.0f)
{
gl_RenderState.SetColor(blend[0], blend[1], blend[2], blend[3]);
gl_FillScreen();
}
gl_RenderState.ResetColor();
gl_RenderState.EnableTexture(true);
}
else
{
screen->Dim(PalEntry(255, blend[0] * 255, blend[1] * 255, blend[2] * 255), blend[3], 0, 0, screen->GetWidth(), screen->GetHeight());
}
}
//===========================================================================
//
// Vertex buffer for 2D drawer