From 2f9afb53db4153319ae156d9b831595dcc6dda86 Mon Sep 17 00:00:00 2001 From: Cacodemon345 Date: Fri, 30 Aug 2024 16:02:32 +0600 Subject: [PATCH] Interpolate non-Burn screen wipes --- src/common/2d/wipe.cpp | 160 ++++++++++++++++++++++++++++++++++------- 1 file changed, 135 insertions(+), 25 deletions(-) diff --git a/src/common/2d/wipe.cpp b/src/common/2d/wipe.cpp index cc57ca29f31..c829f7a8d10 100644 --- a/src/common/2d/wipe.cpp +++ b/src/common/2d/wipe.cpp @@ -43,6 +43,8 @@ #include "s_soundinternal.h" #include "i_time.h" +EXTERN_CVAR(Bool, cl_capfps) + class FBurnTexture : public FTexture { TArray WorkBuffer; @@ -163,6 +165,8 @@ class Wiper public: virtual ~Wiper(); virtual bool Run(int ticks) = 0; + virtual bool RunInterpolated(double ticks) { return true; }; + virtual bool Interpolatable() { return false; } virtual void SetTextures(FGameTexture* startscreen, FGameTexture* endscreen) { startScreen = startscreen; @@ -177,9 +181,11 @@ class Wiper_Crossfade : public Wiper { public: bool Run(int ticks) override; + bool RunInterpolated(double ticks) override; + bool Interpolatable() override { return true; } private: - int Clock = 0; + float Clock = 0; }; class Wiper_Melt : public Wiper @@ -187,10 +193,12 @@ class Wiper_Melt : public Wiper public: Wiper_Melt(); bool Run(int ticks) override; + bool RunInterpolated(double ticks) override; + bool Interpolatable() override { return true; } private: enum { WIDTH = 320, HEIGHT = 200 }; - int y[WIDTH]; + double y[WIDTH]; }; class Wiper_Burn : public Wiper @@ -268,7 +276,23 @@ bool Wiper_Crossfade::Run(int ticks) Clock += ticks; DrawTexture(twod, startScreen, 0, 0, DTA_FlipY, screen->RenderTextureIsFlipped(), DTA_Masked, false, TAG_DONE); DrawTexture(twod, endScreen, 0, 0, DTA_FlipY, screen->RenderTextureIsFlipped(), DTA_Masked, false, DTA_Alpha, clamp(Clock / 32.f, 0.f, 1.f), TAG_DONE); - return Clock >= 32; + return Clock >= 32.; +} + +//========================================================================== +// +// OpenGLFrameBuffer :: Wiper_Crossfade :: Run +// +// Fades the old screen into the new one over 32 ticks. +// +//========================================================================== + +bool Wiper_Crossfade::RunInterpolated(double ticks) +{ + Clock += ticks; + DrawTexture(twod, startScreen, 0, 0, DTA_FlipY, screen->RenderTextureIsFlipped(), DTA_Masked, false, TAG_DONE); + DrawTexture(twod, endScreen, 0, 0, DTA_FlipY, screen->RenderTextureIsFlipped(), DTA_Masked, false, DTA_Alpha, clamp(Clock / 32.f, 0.f, 1.f), TAG_DONE); + return Clock >= 32.; } //========================================================================== @@ -282,7 +306,7 @@ Wiper_Melt::Wiper_Melt() y[0] = -(M_Random() & 15); for (int i = 1; i < WIDTH; ++i) { - y[i] = clamp(y[i-1] + (M_Random() % 3) - 1, -15, 0); + y[i] = clamp(y[i-1] + (double)(M_Random() % 3) - 1., -15., 0.); } } @@ -307,25 +331,25 @@ bool Wiper_Melt::Run(int ticks) { if (y[i] < HEIGHT) { - if (y[i] < 0) - y[i]++; - else if (y[i] < 16) - y[i] += y[i] + 1; + if (y[i] < 0.) + y[i] = y[i] + 1.; + else if (y[i] < 16.) + y[i] += y[i] + 1.; else - y[i] = min(y[i] + 8, HEIGHT); + y[i] = min(y[i] + 8., HEIGHT); done = false; } if (ticks == 0) { struct { int32_t x; - int32_t y; + double y; } dpt; struct { int32_t left; - int32_t top; + double top; int32_t right; - int32_t bottom; + double bottom; } rect; // Only draw for the final tick. @@ -333,7 +357,7 @@ bool Wiper_Melt::Run(int ticks) int w = startScreen->GetTexelWidth(); int h = startScreen->GetTexelHeight(); dpt.x = i * w / WIDTH; - dpt.y = max(0, y[i] * h / HEIGHT); + dpt.y = max(0., y[i] * (double)h / (double)HEIGHT); rect.left = dpt.x; rect.top = 0; rect.right = (i + 1) * w / WIDTH; @@ -348,6 +372,77 @@ bool Wiper_Melt::Run(int ticks) return done; } +//========================================================================== +// +// Wiper_Melt :: RunInterpolated +// +// Melts the old screen into the new one over 32 ticks (interpolated). +// +//========================================================================== + +bool Wiper_Melt::RunInterpolated(double ticks) +{ + bool done = false; + DrawTexture(twod, endScreen, 0, 0, DTA_FlipY, screen->RenderTextureIsFlipped(), DTA_Masked, false, TAG_DONE); + + // Copy the old screen in vertical strips on top of the new one. + while (ticks > 0.) + { + done = true; + for (int i = 0; i < WIDTH; i++) + { + if (y[i] < (double)HEIGHT) + { + if (ticks > 0. && ticks < 1.) + { + if (y[i] < 0) + y[i] += ticks; + else if (y[i] < 16) + y[i] += (y[i] + 1) * ticks; + else + y[i] = min(y[i] + (8 * ticks), (double)HEIGHT); + } + else if (y[i] < 0.) + y[i] = y[i] + 1.; + else if (y[i] < 16.) + y[i] += y[i] + 1.; + else + y[i] = min(y[i] + 8., HEIGHT); + done = false; + } + } + ticks -= 1.; + } + for (int i = 0; i < WIDTH; i++) + { + struct { + int32_t x; + double y; + } dpt; + struct { + int32_t left; + double top; + int32_t right; + double bottom; + } rect; + + // Only draw for the final tick. + int w = startScreen->GetTexelWidth(); + double h = startScreen->GetTexelHeight(); + dpt.x = i * w / WIDTH; + dpt.y = max(0., y[i] * (double)h / (double)HEIGHT); + rect.left = dpt.x; + rect.top = 0; + rect.right = (i + 1) * w / WIDTH; + rect.bottom = h - dpt.y; + if (rect.bottom > rect.top) + { + DrawTexture(twod, startScreen, 0, dpt.y, DTA_FlipY, screen->RenderTextureIsFlipped(), DTA_ClipLeft, rect.left, DTA_ClipRight, rect.right, DTA_Masked, false, TAG_DONE); + } + } + return done; +} + //========================================================================== // // OpenGLFrameBuffer :: Wiper_Burn Constructor @@ -423,6 +518,7 @@ void PerformWipe(FTexture* startimg, FTexture* endimg, int wipe_type, bool stops { // wipe update uint64_t wipestart, nowtime, diff; + double diff_frac; bool done; GSnd->SetSfxPaused(true, 1); @@ -438,20 +534,34 @@ void PerformWipe(FTexture* startimg, FTexture* endimg, int wipe_type, bool stops do { - do + if (wiper->Interpolatable() && !cl_capfps) { - I_WaitVBL(2); nowtime = I_msTime(); - diff = (nowtime - wipestart) * 40 / 1000; // Using 35 here feels too slow. - } while (diff < 1); - wipestart = nowtime; - twod->Begin(screen->GetWidth(), screen->GetHeight()); - done = wiper->Run(1); - if (overlaydrawer) overlaydrawer(); - twod->End(); - screen->Update(); - twod->OnFrameDone(); - + diff_frac = (nowtime - wipestart) * 40. / 1000.; // Using 35 here feels too slow. + wipestart = nowtime; + twod->Begin(screen->GetWidth(), screen->GetHeight()); + done = wiper->RunInterpolated(diff_frac); + if (overlaydrawer) overlaydrawer(); + twod->End(); + screen->Update(); + twod->OnFrameDone(); + } + else + { + do + { + I_WaitVBL(2); + nowtime = I_msTime(); + diff = (nowtime - wipestart) * 40 / 1000; // Using 35 here feels too slow. + } while (diff < 1); + wipestart = nowtime; + twod->Begin(screen->GetWidth(), screen->GetHeight()); + done = wiper->Run(1); + if (overlaydrawer) overlaydrawer(); + twod->End(); + screen->Update(); + twod->OnFrameDone(); + } } while (!done); delete wiper; I_FreezeTime(false);