mirror of
https://github.com/ZDoom/gzdoom-gles.git
synced 2024-12-15 23:00:52 +00:00
299 lines
8.5 KiB
C++
299 lines
8.5 KiB
C++
/*
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** Handling drawing a player sprite
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** Copyright (c) 2016 Magnus Norddahl
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any damages
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** arising from the use of this software.
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**
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** Permission is granted to anyone to use this software for any purpose,
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** including commercial applications, and to alter it and redistribute it
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** freely, subject to the following restrictions:
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**
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** 1. The origin of this software must not be misrepresented; you must not
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** claim that you wrote the original software. If you use this software
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** in a product, an acknowledgment in the product documentation would be
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** appreciated but is not required.
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** 2. Altered source versions must be plainly marked as such, and must not be
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** misrepresented as being the original software.
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** 3. This notice may not be removed or altered from any source distribution.
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**
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*/
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#include <stdlib.h>
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#include "templates.h"
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#include "doomdef.h"
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#include "sbar.h"
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#include "r_data/r_translate.h"
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#include "r_poly_playersprite.h"
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#include "r_poly.h"
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#include "r_things.h" // for pspritexscale
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EXTERN_CVAR(Bool, r_drawplayersprites)
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EXTERN_CVAR(Bool, r_deathcamera)
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EXTERN_CVAR(Bool, st_scale)
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void RenderPolyPlayerSprites::Render()
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{
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// In theory, everything in this function could be moved to RenderRemainingSprites.
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// Just in case there's some hack elsewhere that relies on this happening as part
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// of the main rendering we do it exactly as the old software renderer did.
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ScreenSprites.clear();
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if (!r_drawplayersprites ||
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!camera ||
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!camera->player ||
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(players[consoleplayer].cheats & CF_CHASECAM) ||
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(r_deathcamera && camera->health <= 0))
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return;
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float bobx, boby;
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P_BobWeapon(camera->player, &bobx, &boby, r_TicFracF);
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// Interpolate the main weapon layer once so as to be able to add it to other layers.
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double wx, wy;
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DPSprite *weapon = camera->player->FindPSprite(PSP_WEAPON);
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if (weapon)
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{
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if (weapon->firstTic)
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{
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wx = weapon->x;
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wy = weapon->y;
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}
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else
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{
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wx = weapon->oldx + (weapon->x - weapon->oldx) * r_TicFracF;
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wy = weapon->oldy + (weapon->y - weapon->oldy) * r_TicFracF;
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}
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}
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else
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{
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wx = 0;
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wy = 0;
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}
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for (DPSprite *sprite = camera->player->psprites; sprite != nullptr; sprite = sprite->GetNext())
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{
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// [RH] Don't draw the targeter's crosshair if the player already has a crosshair set.
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// It's possible this psprite's caller is now null but the layer itself hasn't been destroyed
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// because it didn't tick yet (if we typed 'take all' while in the console for example).
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// In this case let's simply not draw it to avoid crashing.
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if ((sprite->GetID() != PSP_TARGETCENTER || CrosshairImage == nullptr) && sprite->GetCaller() != nullptr)
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{
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RenderSprite(sprite, camera, bobx, boby, wx, wy, r_TicFracF);
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}
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}
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}
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void RenderPolyPlayerSprites::RenderRemainingSprites()
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{
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for (auto &sprite : ScreenSprites)
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sprite.Render();
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}
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void RenderPolyPlayerSprites::RenderSprite(DPSprite *sprite, AActor *owner, float bobx, float boby, double wx, double wy, double ticfrac)
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{
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// decide which patch to use
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if ((unsigned)sprite->GetSprite() >= (unsigned)sprites.Size())
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{
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DPrintf(DMSG_ERROR, "RenderPlayerSprite: invalid sprite number %i\n", sprite->GetSprite());
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return;
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}
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spritedef_t *def = &sprites[sprite->GetSprite()];
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if (sprite->GetFrame() >= def->numframes)
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{
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DPrintf(DMSG_ERROR, "RenderPlayerSprite: invalid sprite frame %i : %i\n", sprite->GetSprite(), sprite->GetFrame());
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return;
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}
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spriteframe_t *frame = &SpriteFrames[def->spriteframes + sprite->GetFrame()];
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FTextureID picnum = frame->Texture[0];
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bool flip = (frame->Flip & 1) != 0;
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FTexture *tex = TexMan(picnum);
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if (tex->UseType == FTexture::TEX_Null)
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return;
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// Can't interpolate the first tic.
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if (sprite->firstTic)
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{
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sprite->firstTic = false;
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sprite->oldx = sprite->x;
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sprite->oldy = sprite->y;
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}
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double sx = sprite->oldx + (sprite->x - sprite->oldx) * ticfrac;
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double sy = sprite->oldy + (sprite->y - sprite->oldy) * ticfrac;
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if (sprite->Flags & PSPF_ADDBOB)
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{
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sx += bobx;
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sy += boby;
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}
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if (sprite->Flags & PSPF_ADDWEAPON && sprite->GetID() != PSP_WEAPON)
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{
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sx += wx;
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sy += wy;
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}
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// calculate edges of the shape
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double tx = sx - BaseXCenter;
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tx -= tex->GetScaledLeftOffset();
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int x1 = xs_RoundToInt(CenterX + tx * pspritexscale);
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// off the right side
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if (x1 > viewwidth)
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return;
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tx += tex->GetScaledWidth();
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int x2 = xs_RoundToInt(CenterX + tx * pspritexscale);
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// off the left side
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if (x2 <= 0)
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return;
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double texturemid = (BaseYCenter - sy) * tex->Scale.Y + tex->TopOffset;
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// Adjust PSprite for fullscreen views
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if (camera->player && (RenderTarget != screen || viewheight == RenderTarget->GetHeight() || (RenderTarget->GetWidth() > (BaseXCenter * 2) && !st_scale)))
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{
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AWeapon *weapon = dyn_cast<AWeapon>(sprite->GetCaller());
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if (weapon != nullptr && weapon->YAdjust != 0)
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{
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if (RenderTarget != screen || viewheight == RenderTarget->GetHeight())
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{
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texturemid -= weapon->YAdjust;
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}
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else
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{
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texturemid -= StatusBar->GetDisplacement() * weapon->YAdjust;
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}
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}
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}
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// Move the weapon down for 1280x1024.
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if (sprite->GetID() < PSP_TARGETCENTER)
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{
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texturemid -= AspectPspriteOffset(WidescreenRatio);
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}
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int clipped_x1 = MAX(x1, 0);
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int clipped_x2 = MIN(x2, viewwidth);
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double xscale = pspritexscale / tex->Scale.X;
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double yscale = pspriteyscale / tex->Scale.Y;
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uint32_t translation = 0; // [RH] Use default colors
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double xiscale, startfrac;
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if (flip)
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{
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xiscale = -pspritexiscale * tex->Scale.X;
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startfrac = 1;
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}
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else
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{
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xiscale = pspritexiscale * tex->Scale.X;
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startfrac = 0;
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}
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if (clipped_x1 > x1)
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startfrac += xiscale * (clipped_x1 - x1);
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bool noaccel = false;
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FDynamicColormap *basecolormap = viewsector->ColorMap;
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FDynamicColormap *colormap_to_use = basecolormap;
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visstyle_t visstyle;
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visstyle.ColormapNum = 0;
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visstyle.BaseColormap = basecolormap;
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visstyle.Alpha = 0;
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visstyle.RenderStyle = STYLE_Normal;
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bool foggy = false;
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int actualextralight = foggy ? 0 : extralight << 4;
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int spriteshade = LIGHT2SHADE(owner->Sector->lightlevel + actualextralight);
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double minz = double((2048 * 4) / double(1 << 20));
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visstyle.ColormapNum = GETPALOOKUP(r_SpriteVisibility / minz, spriteshade);
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if (sprite->GetID() < PSP_TARGETCENTER)
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{
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// Lots of complicated style and noaccel stuff
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}
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// Check for hardware-assisted 2D. If it's available, and this sprite is not
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// fuzzy, don't draw it until after the switch to 2D mode.
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if (!noaccel && RenderTarget == screen && (DFrameBuffer *)screen->Accel2D)
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{
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FRenderStyle style = visstyle.RenderStyle;
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style.CheckFuzz();
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if (style.BlendOp != STYLEOP_Fuzz)
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{
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PolyScreenSprite screenSprite;
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screenSprite.Pic = tex;
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screenSprite.X1 = viewwindowx + x1;
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screenSprite.Y1 = viewwindowy + viewheight / 2 - texturemid * yscale - 0.5;
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screenSprite.Width = tex->GetWidth() * xscale;
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screenSprite.Height = tex->GetHeight() * yscale;
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screenSprite.Translation = TranslationToTable(translation);
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screenSprite.Flip = xiscale < 0;
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screenSprite.visstyle = visstyle;
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screenSprite.Colormap = colormap_to_use;
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ScreenSprites.push_back(screenSprite);
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return;
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}
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}
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//R_DrawVisSprite(vis);
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}
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void PolyScreenSprite::Render()
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{
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FSpecialColormap *special = nullptr;
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FColormapStyle colormapstyle;
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PalEntry overlay = 0;
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bool usecolormapstyle = false;
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if (visstyle.BaseColormap >= &SpecialColormaps[0] &&
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visstyle.BaseColormap < &SpecialColormaps[SpecialColormaps.Size()])
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{
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special = static_cast<FSpecialColormap*>(visstyle.BaseColormap);
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}
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else if (Colormap->Color == PalEntry(255, 255, 255) &&
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Colormap->Desaturate == 0)
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{
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overlay = Colormap->Fade;
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overlay.a = BYTE(visstyle.ColormapNum * 255 / NUMCOLORMAPS);
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}
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else
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{
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usecolormapstyle = true;
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colormapstyle.Color = Colormap->Color;
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colormapstyle.Fade = Colormap->Fade;
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colormapstyle.Desaturate = Colormap->Desaturate;
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colormapstyle.FadeLevel = visstyle.ColormapNum / float(NUMCOLORMAPS);
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}
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screen->DrawTexture(Pic,
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X1,
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Y1,
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DTA_DestWidthF, Width,
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DTA_DestHeightF, Height,
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DTA_Translation, Translation,
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DTA_FlipX, Flip,
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DTA_TopOffset, 0,
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DTA_LeftOffset, 0,
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DTA_ClipLeft, viewwindowx,
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DTA_ClipTop, viewwindowy,
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DTA_ClipRight, viewwindowx + viewwidth,
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DTA_ClipBottom, viewwindowy + viewheight,
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DTA_AlphaF, visstyle.Alpha,
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DTA_RenderStyle, visstyle.RenderStyle,
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DTA_FillColor, FillColor,
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DTA_SpecialColormap, special,
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DTA_ColorOverlay, overlay.d,
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DTA_ColormapStyle, usecolormapstyle ? &colormapstyle : nullptr,
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TAG_DONE);
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}
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