Graphics: PoC integer scaling
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Ancurio
parent
a91acbe6ef
commit
fb16c8e6d0
115
src/graphics.cpp
115
src/graphics.cpp
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@ -477,6 +477,11 @@ struct GraphicsPrivate
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TEXFBO frozenScene;
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Quad screenQuad;
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Vec2i integerScaleFactor;
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TEXFBO integerScaleBuffer;
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bool integerScaleActive;
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bool integerScaleFixedAspectRatio;
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/* Global list of all live Disposables
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* (disposed on reset) */
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IntruList<Disposable> dispList;
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@ -492,7 +497,10 @@ struct GraphicsPrivate
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frameCount(0),
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brightness(255),
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fpsLimiter(frameRate),
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frozen(false)
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frozen(false),
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integerScaleFactor(0, 0),
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integerScaleActive(true),
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integerScaleFixedAspectRatio(rtData->config.fixedAspectRatio)
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{
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recalculateScreenSize(rtData);
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updateScreenResoRatio(rtData);
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@ -501,6 +509,12 @@ struct GraphicsPrivate
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TEXFBO::allocEmpty(frozenScene, scRes.x, scRes.y);
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TEXFBO::linkFBO(frozenScene);
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if (integerScaleActive)
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{
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integerScaleFactor = Vec2i(1, 1);
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rebuildIntegerScaleBuffer();
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}
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FloatRect screenRect(0, 0, scRes.x, scRes.y);
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screenQuad.setTexPosRect(screenRect, screenRect);
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@ -510,6 +524,7 @@ struct GraphicsPrivate
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~GraphicsPrivate()
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{
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TEXFBO::fini(frozenScene);
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TEXFBO::fini(integerScaleBuffer);
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}
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void updateScreenResoRatio(RGSSThreadData *rtData)
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@ -544,15 +559,77 @@ struct GraphicsPrivate
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scOffset.y = (winSize.y - scSize.y) / 2.f;
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}
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static int findHighestFittingScale(int base, int target)
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{
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int scale = 1;
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while (base * scale <= target)
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scale += 1;
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Debug() << base << target << scale - 1;
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return scale - 1;
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}
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/* Returns whether a new scale was found */
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bool findHighestIntegerScale()
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{
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Vec2i newScale(findHighestFittingScale(scRes.x, winSize.x),
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findHighestFittingScale(scRes.y, winSize.y));
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if (integerScaleFixedAspectRatio)
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{
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/* Limit both factors to the smaller of the two */
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newScale.x = newScale.y = std::min(newScale.x, newScale.y);
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}
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if (newScale == integerScaleFactor)
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return false;
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integerScaleFactor = newScale;
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Debug() << "Found new scale:" << newScale.x << newScale.y;
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return true;
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}
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void rebuildIntegerScaleBuffer()
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{
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TEXFBO::fini(integerScaleBuffer);
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TEXFBO::init(integerScaleBuffer);
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TEXFBO::allocEmpty(integerScaleBuffer, scRes.x * integerScaleFactor.x,
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scRes.y * integerScaleFactor.y);
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TEXFBO::linkFBO(integerScaleBuffer);
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Debug() << "New buffer size:" << integerScaleBuffer.width << integerScaleBuffer.height;
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}
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bool integerScaleStepApplicable() const
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{
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if (!integerScaleActive)
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return false;
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if (integerScaleFactor.x < 1 || integerScaleFactor.y < 1) // XXX should be < 2, this is for testing only
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return false;
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return true;
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}
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void checkResize()
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{
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if (threadData->windowSizeMsg.poll(winSize))
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{
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/* Query the acutal size in pixels, not units */
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SDL_GL_GetDrawableSize(threadData->window, &winSize.x, &winSize.y);
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Debug() << "Reported GL drawable size:" << winSize.x << winSize.y;
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/* some GL drivers change the viewport on window resize */
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glState.viewport.refresh();
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recalculateScreenSize(threadData);
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updateScreenResoRatio(threadData);
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if (integerScaleActive)
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if (findHighestIntegerScale())
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rebuildIntegerScaleBuffer();
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SDL_Rect screen = { scOffset.x, scOffset.y, scSize.x, scSize.y };
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threadData->ethread->notifyGameScreenChange(screen);
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}
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@ -600,7 +677,12 @@ struct GraphicsPrivate
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void metaBlitBufferFlippedScaled()
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{
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GLMeta::blitRectangle(IntRect(0, 0, scRes.x, scRes.y),
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metaBlitBufferFlippedScaled(scRes);
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}
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void metaBlitBufferFlippedScaled(const Vec2i &sourceSize)
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{
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GLMeta::blitRectangle(IntRect(0, 0, sourceSize.x, sourceSize.y),
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IntRect(scOffset.x, scSize.y+scOffset.y, scSize.x, -scSize.y),
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threadData->config.smoothScaling);
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}
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@ -609,11 +691,36 @@ struct GraphicsPrivate
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{
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screen.composite();
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GLMeta::blitBeginScreen(winSize);
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if (integerScaleStepApplicable())
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{
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assert(integerScaleBuffer.tex != TEX::ID(0));
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GLMeta::blitBegin(integerScaleBuffer);
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GLMeta::blitSource(screen.getPP().frontBuffer());
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GLMeta::blitRectangle(IntRect(0, 0, scRes.x, scRes.y),
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IntRect(0, 0, integerScaleBuffer.width, integerScaleBuffer.height),
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false);
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GLMeta::blitEnd();
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}
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GLMeta::blitBeginScreen(winSize);
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Vec2i sourceSize;
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if (integerScaleActive)
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{
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GLMeta::blitSource(integerScaleBuffer);
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sourceSize = Vec2i(integerScaleBuffer.width, integerScaleBuffer.height);
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}
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else
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{
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GLMeta::blitSource(screen.getPP().frontBuffer());
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sourceSize = scRes;
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}
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FBO::clear();
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metaBlitBufferFlippedScaled();
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metaBlitBufferFlippedScaled(sourceSize);
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GLMeta::blitEnd();
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16
src/main.cpp
16
src/main.cpp
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@ -41,6 +41,10 @@
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#include "binding.h"
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#ifdef __WINDOWS__
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#include <windows.h>
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#include <shellscalingapi.h>
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#include <comdef.h>
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#include "resource.h"
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// Try to force dedicated GPU
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@ -204,6 +208,16 @@ int main(int argc, char *argv[])
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SDL_SetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS, "0");
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// SDL_SetHint(SDL_HINT_ACCELEROMETER_AS_JOYSTICK, "0");
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#ifdef __WINDOWS__
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SetProcessDPIAware();
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// HRESULT hr = SetProcessDpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE);
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// if (FAILED(hr))
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// {
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// _com_error err(hr);
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// fwprintf(stderr, L"SetProcessDpiAwareness: %s\n", err.ErrorMessage());
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// }
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#endif
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/* initialize SDL first */
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if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0)
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{
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@ -276,7 +290,7 @@ int main(int argc, char *argv[])
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}
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SDL_Window *win;
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Uint32 winFlags = SDL_WINDOW_OPENGL | SDL_WINDOW_INPUT_FOCUS;
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Uint32 winFlags = SDL_WINDOW_OPENGL | SDL_WINDOW_INPUT_FOCUS | SDL_WINDOW_ALLOW_HIGHDPI;
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if (conf.winResizable)
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winFlags |= SDL_WINDOW_RESIZABLE;
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