mirror of https://github.com/stella-emu/stella.git
Add HQ blitter.
This commit is contained in:
Christian Speckner
parent
62af272020
commit
f6eb86b9bb
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@ -19,6 +19,7 @@
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#include "ThreadDebugging.hxx"
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#include "sdl_blitter/BilinearBlitter.hxx"
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#include "sdl_blitter/HqBlitter.hxx"
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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FBSurfaceSDL2::FBSurfaceSDL2(FrameBufferSDL2& buffer,
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@ -28,7 +29,7 @@ FBSurfaceSDL2::FBSurfaceSDL2(FrameBufferSDL2& buffer,
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myIsVisible(true),
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myIsStatic(false)
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{
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myBlitter = make_unique<BilinearBlitter>(buffer);
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myBlitter = make_unique<HqBlitter>(buffer);
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createSurface(width, height, data);
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}
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@ -136,23 +137,8 @@ void FBSurfaceSDL2::translateCoords(Int32& x, Int32& y) const
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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bool FBSurfaceSDL2::render()
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{
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// ASSERT_MAIN_THREAD;
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if(myIsVisible)
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{
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/*
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SDL_Texture* texture = myTexture;
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if(myTexAccess == SDL_TEXTUREACCESS_STREAMING) {
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SDL_UpdateTexture(myTexture, &mySrcR, mySurface->pixels, mySurface->pitch);
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myTexture = mySecondaryTexture;
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mySecondaryTexture = texture;
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}
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SDL_RenderCopy(myFB.myRenderer, texture, &mySrcR, &myDstR);
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*/
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myBlitter->blit(*mySurface);
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return true;
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@ -170,53 +156,13 @@ void FBSurfaceSDL2::invalidate()
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void FBSurfaceSDL2::free()
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{/*
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ASSERT_MAIN_THREAD;
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SDL_Texture* textures[] = {myTexture, mySecondaryTexture};
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for (SDL_Texture* texture: textures) {
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if (!texture) continue;
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SDL_DestroyTexture(myTexture);
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myTexture = nullptr;
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}
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*/
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{
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myBlitter->free();
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void FBSurfaceSDL2::reload()
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{
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/*
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ASSERT_MAIN_THREAD;
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// Re-create texture; the underlying SDL_Surface is fine as-is
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SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, myInterpolate ? "1" : "0");
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myTexture = SDL_CreateTexture(myFB.myRenderer, myFB.myPixelFormat->format,
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myTexAccess, mySurface->w, mySurface->h);
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if (myTexAccess == SDL_TEXTUREACCESS_STREAMING)
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mySecondaryTexture = SDL_CreateTexture(myFB.myRenderer, myFB.myPixelFormat->format,
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myTexAccess, mySurface->w, mySurface->h);
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// If the data is static, we only upload it once
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if(myTexAccess == SDL_TEXTUREACCESS_STATIC)
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SDL_UpdateTexture(myTexture, nullptr, myStaticData.get(), myStaticPitch);
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SDL_Texture* textures[] = {myTexture, mySecondaryTexture};
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for (SDL_Texture* texture: textures) {
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if (!texture) continue;
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// Blending enabled?
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if(myBlendEnabled)
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{
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SDL_SetTextureBlendMode(texture, SDL_BLENDMODE_BLEND);
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SDL_SetTextureAlphaMod(texture, myBlendAlpha);
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}
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}
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*/
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reinitializeBlitter();
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}
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@ -225,14 +171,6 @@ void FBSurfaceSDL2::resize(uInt32 width, uInt32 height)
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{
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ASSERT_MAIN_THREAD;
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/*
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// We will only resize when necessary, and not using static textures
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if((myTexAccess == SDL_TEXTUREACCESS_STATIC) || (mySurface &&
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int(width) <= mySurface->w && int(height) <= mySurface->h))
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return; // don't need to resize at all
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*/
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if(mySurface)
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SDL_FreeSurface(mySurface);
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free();
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@ -271,10 +209,6 @@ void FBSurfaceSDL2::createSurface(uInt32 width, uInt32 height,
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SDL_memcpy(mySurface->pixels, data, mySurface->w * mySurface->h * 4);
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}
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// applyAttributes(false);
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// To generate texture
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// reload();
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reinitializeBlitter();
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}
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@ -288,16 +222,4 @@ void FBSurfaceSDL2::reinitializeBlitter()
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void FBSurfaceSDL2::applyAttributes(bool immediate)
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{
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reinitializeBlitter();
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/*
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myInterpolate = myAttributes.smoothing;
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myBlendEnabled = myAttributes.blending;
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myBlendAlpha = uInt8(myAttributes.blendalpha * 2.55);
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if(immediate)
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{
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// Re-create the texture with the new settings
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free();
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reload();
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}
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*/
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}
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@ -26,7 +26,8 @@ MODULE_OBJS := \
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src/common/ThreadDebugging.o \
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src/common/StaggeredLogger.o \
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src/common/repository/KeyValueRepositoryConfigfile.o \
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src/common/sdl_blitter/BilinearBlitter.o
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src/common/sdl_blitter/BilinearBlitter.o \
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src/common/sdl_blitter/HqBlitter.o
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MODULE_DIRS += \
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src/common
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@ -0,0 +1,170 @@
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//============================================================================
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//
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// SSSS tt lll lll
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// SS SS tt ll ll
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// SS tttttt eeee ll ll aaaa
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// SSSS tt ee ee ll ll aa
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// SS tt eeeeee ll ll aaaaa -- "An Atari 2600 VCS Emulator"
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// SS SS tt ee ll ll aa aa
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// SSSS ttt eeeee llll llll aaaaa
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//
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// Copyright (c) 1995-2019 by Bradford W. Mott, Stephen Anthony
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// and the Stella Team
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//
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// See the file "License.txt" for information on usage and redistribution of
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// this file, and for a DISCLAIMER OF ALL WARRANTIES.
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//============================================================================
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#include "HqBlitter.hxx"
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#include "ThreadDebugging.hxx"
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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HqBlitter::HqBlitter(FrameBufferSDL2& fb) :
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mySrcTexture(nullptr),
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myIntermediateTexture(nullptr),
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mySecondaryIntermedateTexture(nullptr),
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myTexturesAreAllocated(false),
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myRecreateTextures(false),
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myStaticData(nullptr),
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myFB(fb)
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{}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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HqBlitter::~HqBlitter()
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{
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free();
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void HqBlitter::reinitialize(
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SDL_Rect srcRect,
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SDL_Rect destRect,
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FBSurface::Attributes attributes,
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SDL_Surface* staticData
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)
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{
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myRecreateTextures = !(
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mySrcRect.w == srcRect.w &&
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mySrcRect.h == srcRect.h &&
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myDstRect.w == destRect.w &&
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myDstRect.h == destRect.h &&
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attributes == myAttributes &&
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myStaticData == staticData
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);
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myStaticData = staticData;
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mySrcRect = srcRect;
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myDstRect = destRect;
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myAttributes = attributes;
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void HqBlitter::free()
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{
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if (!myTexturesAreAllocated) {
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return;
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}
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ASSERT_MAIN_THREAD;
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SDL_Texture* textures[] = {mySrcTexture, myIntermediateTexture, mySecondaryIntermedateTexture};
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for (SDL_Texture* texture: textures) {
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if (!texture) continue;
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SDL_DestroyTexture(texture);
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}
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myTexturesAreAllocated = false;
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void HqBlitter::blit(SDL_Surface& surface)
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{
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ASSERT_MAIN_THREAD;
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recreateTexturesIfNecessary();
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SDL_Texture* texture = myIntermediateTexture;
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if(myStaticData == nullptr) {
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SDL_UpdateTexture(mySrcTexture, &mySrcRect, surface.pixels, surface.pitch);
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blitToIntermediate();
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myIntermediateTexture = mySecondaryIntermedateTexture;
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mySecondaryIntermedateTexture = texture;
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}
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SDL_RenderCopy(myFB.renderer(), texture, &myIntermediateRect, &myDstRect);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void HqBlitter::blitToIntermediate()
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{
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SDL_Rect r = mySrcRect;
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r.x = r.y = 0;
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SDL_SetRenderTarget(myFB.renderer(), myIntermediateTexture);
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SDL_RenderCopy(myFB.renderer(), mySrcTexture, &r, &myIntermediateRect);
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SDL_SetRenderTarget(myFB.renderer(), nullptr);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void HqBlitter::recreateTexturesIfNecessary()
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{
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if (myTexturesAreAllocated && !myRecreateTextures) {
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return;
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}
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ASSERT_MAIN_THREAD;
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if (myTexturesAreAllocated) {
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free();
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}
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SDL_TextureAccess texAccess = myStaticData == nullptr ? SDL_TEXTUREACCESS_STREAMING : SDL_TEXTUREACCESS_STATIC;
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myIntermediateRect.w = (myDstRect.w / mySrcRect.w) * mySrcRect.w;
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myIntermediateRect.h = (myDstRect.h / mySrcRect.h) * mySrcRect.h;
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myIntermediateRect.x = 0;
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myIntermediateRect.y = 0;
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SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "0");
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mySrcTexture = SDL_CreateTexture(myFB.renderer(), myFB.pixelFormat().format,
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texAccess, mySrcRect.w, mySrcRect.h);
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SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, myAttributes.smoothing ? "1" : "0");
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myIntermediateTexture = SDL_CreateTexture(myFB.renderer(), myFB.pixelFormat().format,
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SDL_TEXTUREACCESS_TARGET, myIntermediateRect.w, myIntermediateRect.h);
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if (myStaticData == nullptr) {
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mySecondaryIntermedateTexture = SDL_CreateTexture(myFB.renderer(), myFB.pixelFormat().format,
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SDL_TEXTUREACCESS_TARGET, myIntermediateRect.w, myIntermediateRect.h);
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} else {
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mySecondaryIntermedateTexture = nullptr;
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SDL_UpdateTexture(mySrcTexture, nullptr, myStaticData->pixels, myStaticData->pitch);
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blitToIntermediate();
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}
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if (myAttributes.blending) {
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uInt8 blendAlpha = uInt8(myAttributes.blendalpha * 2.55);
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SDL_Texture* textures[] = {mySrcTexture, myIntermediateTexture, mySecondaryIntermedateTexture};
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for (SDL_Texture* texture: textures) {
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if (!texture) continue;
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SDL_SetTextureBlendMode(texture, SDL_BLENDMODE_BLEND);
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SDL_SetTextureAlphaMod(texture, blendAlpha);
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}
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}
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myRecreateTextures = false;
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myTexturesAreAllocated = true;
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}
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@ -0,0 +1,77 @@
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//============================================================================
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//
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// SSSS tt lll lll
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// SS SS tt ll ll
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// SS tttttt eeee ll ll aaaa
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// SSSS tt ee ee ll ll aa
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// SS tt eeeeee ll ll aaaaa -- "An Atari 2600 VCS Emulator"
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// SS SS tt ee ll ll aa aa
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// SSSS ttt eeeee llll llll aaaaa
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//
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// Copyright (c) 1995-2019 by Bradford W. Mott, Stephen Anthony
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// and the Stella Team
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//
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// See the file "License.txt" for information on usage and redistribution of
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// this file, and for a DISCLAIMER OF ALL WARRANTIES.
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//============================================================================
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#ifndef HQ_BLITTER_HXX
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#define HQ_BLITTER_HXX
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#include "Blitter.hxx"
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#include "FrameBufferSDL2.hxx"
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#include "SDL_lib.hxx"
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class HqBlitter : public Blitter {
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public:
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HqBlitter(FrameBufferSDL2& fb);
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virtual ~HqBlitter();
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virtual void reinitialize(
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SDL_Rect srcRect,
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SDL_Rect destRect,
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FBSurface::Attributes attributes,
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SDL_Surface* staticData = nullptr
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) override;
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virtual void blit(SDL_Surface& surface) override;
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virtual void free() override;
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private:
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SDL_Texture* mySrcTexture;
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SDL_Texture* myIntermediateTexture;
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SDL_Texture* mySecondaryIntermedateTexture;
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SDL_Rect mySrcRect, myIntermediateRect, myDstRect;
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FBSurface::Attributes myAttributes;
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bool myTexturesAreAllocated;
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bool myRecreateTextures;
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SDL_Surface* myStaticData;
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FrameBufferSDL2& myFB;
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private:
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void recreateTexturesIfNecessary();
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void blitToIntermediate();
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private:
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HqBlitter(const HqBlitter&) = delete;
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HqBlitter(HqBlitter&&) = delete;
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HqBlitter& operator=(const HqBlitter&) = delete;
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HqBlitter& operator=(HqBlitter&&) = delete;
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};
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#endif // HQ_BLITTER_CXX
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