Add HQ blitter.

This commit is contained in:
Christian Speckner 2019-12-09 22:50:51 +01:00
parent 62af272020
commit f6eb86b9bb
4 changed files with 253 additions and 83 deletions

View File

@ -19,6 +19,7 @@
#include "ThreadDebugging.hxx"
#include "sdl_blitter/BilinearBlitter.hxx"
#include "sdl_blitter/HqBlitter.hxx"
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
FBSurfaceSDL2::FBSurfaceSDL2(FrameBufferSDL2& buffer,
@ -28,7 +29,7 @@ FBSurfaceSDL2::FBSurfaceSDL2(FrameBufferSDL2& buffer,
myIsVisible(true),
myIsStatic(false)
{
myBlitter = make_unique<BilinearBlitter>(buffer);
myBlitter = make_unique<HqBlitter>(buffer);
createSurface(width, height, data);
}
@ -136,23 +137,8 @@ void FBSurfaceSDL2::translateCoords(Int32& x, Int32& y) const
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
bool FBSurfaceSDL2::render()
{
// ASSERT_MAIN_THREAD;
if(myIsVisible)
{
/*
SDL_Texture* texture = myTexture;
if(myTexAccess == SDL_TEXTUREACCESS_STREAMING) {
SDL_UpdateTexture(myTexture, &mySrcR, mySurface->pixels, mySurface->pitch);
myTexture = mySecondaryTexture;
mySecondaryTexture = texture;
}
SDL_RenderCopy(myFB.myRenderer, texture, &mySrcR, &myDstR);
*/
myBlitter->blit(*mySurface);
return true;
@ -170,54 +156,14 @@ void FBSurfaceSDL2::invalidate()
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void FBSurfaceSDL2::free()
{/*
ASSERT_MAIN_THREAD;
SDL_Texture* textures[] = {myTexture, mySecondaryTexture};
for (SDL_Texture* texture: textures) {
if (!texture) continue;
SDL_DestroyTexture(myTexture);
myTexture = nullptr;
}
*/
{
myBlitter->free();
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void FBSurfaceSDL2::reload()
{
/*
ASSERT_MAIN_THREAD;
// Re-create texture; the underlying SDL_Surface is fine as-is
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, myInterpolate ? "1" : "0");
myTexture = SDL_CreateTexture(myFB.myRenderer, myFB.myPixelFormat->format,
myTexAccess, mySurface->w, mySurface->h);
if (myTexAccess == SDL_TEXTUREACCESS_STREAMING)
mySecondaryTexture = SDL_CreateTexture(myFB.myRenderer, myFB.myPixelFormat->format,
myTexAccess, mySurface->w, mySurface->h);
// If the data is static, we only upload it once
if(myTexAccess == SDL_TEXTUREACCESS_STATIC)
SDL_UpdateTexture(myTexture, nullptr, myStaticData.get(), myStaticPitch);
SDL_Texture* textures[] = {myTexture, mySecondaryTexture};
for (SDL_Texture* texture: textures) {
if (!texture) continue;
// Blending enabled?
if(myBlendEnabled)
{
SDL_SetTextureBlendMode(texture, SDL_BLENDMODE_BLEND);
SDL_SetTextureAlphaMod(texture, myBlendAlpha);
}
}
*/
reinitializeBlitter();
reinitializeBlitter();
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@ -225,14 +171,6 @@ void FBSurfaceSDL2::resize(uInt32 width, uInt32 height)
{
ASSERT_MAIN_THREAD;
/*
// We will only resize when necessary, and not using static textures
if((myTexAccess == SDL_TEXTUREACCESS_STATIC) || (mySurface &&
int(width) <= mySurface->w && int(height) <= mySurface->h))
return; // don't need to resize at all
*/
if(mySurface)
SDL_FreeSurface(mySurface);
free();
@ -271,10 +209,6 @@ void FBSurfaceSDL2::createSurface(uInt32 width, uInt32 height,
SDL_memcpy(mySurface->pixels, data, mySurface->w * mySurface->h * 4);
}
// applyAttributes(false);
// To generate texture
// reload();
reinitializeBlitter();
}
@ -288,16 +222,4 @@ void FBSurfaceSDL2::reinitializeBlitter()
void FBSurfaceSDL2::applyAttributes(bool immediate)
{
reinitializeBlitter();
/*
myInterpolate = myAttributes.smoothing;
myBlendEnabled = myAttributes.blending;
myBlendAlpha = uInt8(myAttributes.blendalpha * 2.55);
if(immediate)
{
// Re-create the texture with the new settings
free();
reload();
}
*/
}

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@ -26,7 +26,8 @@ MODULE_OBJS := \
src/common/ThreadDebugging.o \
src/common/StaggeredLogger.o \
src/common/repository/KeyValueRepositoryConfigfile.o \
src/common/sdl_blitter/BilinearBlitter.o
src/common/sdl_blitter/BilinearBlitter.o \
src/common/sdl_blitter/HqBlitter.o
MODULE_DIRS += \
src/common

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@ -0,0 +1,170 @@
//============================================================================
//
// SSSS tt lll lll
// SS SS tt ll ll
// SS tttttt eeee ll ll aaaa
// SSSS tt ee ee ll ll aa
// SS tt eeeeee ll ll aaaaa -- "An Atari 2600 VCS Emulator"
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2019 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of
// this file, and for a DISCLAIMER OF ALL WARRANTIES.
//============================================================================
#include "HqBlitter.hxx"
#include "ThreadDebugging.hxx"
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
HqBlitter::HqBlitter(FrameBufferSDL2& fb) :
mySrcTexture(nullptr),
myIntermediateTexture(nullptr),
mySecondaryIntermedateTexture(nullptr),
myTexturesAreAllocated(false),
myRecreateTextures(false),
myStaticData(nullptr),
myFB(fb)
{}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
HqBlitter::~HqBlitter()
{
free();
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void HqBlitter::reinitialize(
SDL_Rect srcRect,
SDL_Rect destRect,
FBSurface::Attributes attributes,
SDL_Surface* staticData
)
{
myRecreateTextures = !(
mySrcRect.w == srcRect.w &&
mySrcRect.h == srcRect.h &&
myDstRect.w == destRect.w &&
myDstRect.h == destRect.h &&
attributes == myAttributes &&
myStaticData == staticData
);
myStaticData = staticData;
mySrcRect = srcRect;
myDstRect = destRect;
myAttributes = attributes;
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void HqBlitter::free()
{
if (!myTexturesAreAllocated) {
return;
}
ASSERT_MAIN_THREAD;
SDL_Texture* textures[] = {mySrcTexture, myIntermediateTexture, mySecondaryIntermedateTexture};
for (SDL_Texture* texture: textures) {
if (!texture) continue;
SDL_DestroyTexture(texture);
}
myTexturesAreAllocated = false;
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void HqBlitter::blit(SDL_Surface& surface)
{
ASSERT_MAIN_THREAD;
recreateTexturesIfNecessary();
SDL_Texture* texture = myIntermediateTexture;
if(myStaticData == nullptr) {
SDL_UpdateTexture(mySrcTexture, &mySrcRect, surface.pixels, surface.pitch);
blitToIntermediate();
myIntermediateTexture = mySecondaryIntermedateTexture;
mySecondaryIntermedateTexture = texture;
}
SDL_RenderCopy(myFB.renderer(), texture, &myIntermediateRect, &myDstRect);
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void HqBlitter::blitToIntermediate()
{
SDL_Rect r = mySrcRect;
r.x = r.y = 0;
SDL_SetRenderTarget(myFB.renderer(), myIntermediateTexture);
SDL_RenderCopy(myFB.renderer(), mySrcTexture, &r, &myIntermediateRect);
SDL_SetRenderTarget(myFB.renderer(), nullptr);
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void HqBlitter::recreateTexturesIfNecessary()
{
if (myTexturesAreAllocated && !myRecreateTextures) {
return;
}
ASSERT_MAIN_THREAD;
if (myTexturesAreAllocated) {
free();
}
SDL_TextureAccess texAccess = myStaticData == nullptr ? SDL_TEXTUREACCESS_STREAMING : SDL_TEXTUREACCESS_STATIC;
myIntermediateRect.w = (myDstRect.w / mySrcRect.w) * mySrcRect.w;
myIntermediateRect.h = (myDstRect.h / mySrcRect.h) * mySrcRect.h;
myIntermediateRect.x = 0;
myIntermediateRect.y = 0;
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "0");
mySrcTexture = SDL_CreateTexture(myFB.renderer(), myFB.pixelFormat().format,
texAccess, mySrcRect.w, mySrcRect.h);
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, myAttributes.smoothing ? "1" : "0");
myIntermediateTexture = SDL_CreateTexture(myFB.renderer(), myFB.pixelFormat().format,
SDL_TEXTUREACCESS_TARGET, myIntermediateRect.w, myIntermediateRect.h);
if (myStaticData == nullptr) {
mySecondaryIntermedateTexture = SDL_CreateTexture(myFB.renderer(), myFB.pixelFormat().format,
SDL_TEXTUREACCESS_TARGET, myIntermediateRect.w, myIntermediateRect.h);
} else {
mySecondaryIntermedateTexture = nullptr;
SDL_UpdateTexture(mySrcTexture, nullptr, myStaticData->pixels, myStaticData->pitch);
blitToIntermediate();
}
if (myAttributes.blending) {
uInt8 blendAlpha = uInt8(myAttributes.blendalpha * 2.55);
SDL_Texture* textures[] = {mySrcTexture, myIntermediateTexture, mySecondaryIntermedateTexture};
for (SDL_Texture* texture: textures) {
if (!texture) continue;
SDL_SetTextureBlendMode(texture, SDL_BLENDMODE_BLEND);
SDL_SetTextureAlphaMod(texture, blendAlpha);
}
}
myRecreateTextures = false;
myTexturesAreAllocated = true;
}

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@ -0,0 +1,77 @@
//============================================================================
//
// SSSS tt lll lll
// SS SS tt ll ll
// SS tttttt eeee ll ll aaaa
// SSSS tt ee ee ll ll aa
// SS tt eeeeee ll ll aaaaa -- "An Atari 2600 VCS Emulator"
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2019 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of
// this file, and for a DISCLAIMER OF ALL WARRANTIES.
//============================================================================
#ifndef HQ_BLITTER_HXX
#define HQ_BLITTER_HXX
#include "Blitter.hxx"
#include "FrameBufferSDL2.hxx"
#include "SDL_lib.hxx"
class HqBlitter : public Blitter {
public:
HqBlitter(FrameBufferSDL2& fb);
virtual ~HqBlitter();
virtual void reinitialize(
SDL_Rect srcRect,
SDL_Rect destRect,
FBSurface::Attributes attributes,
SDL_Surface* staticData = nullptr
) override;
virtual void blit(SDL_Surface& surface) override;
virtual void free() override;
private:
SDL_Texture* mySrcTexture;
SDL_Texture* myIntermediateTexture;
SDL_Texture* mySecondaryIntermedateTexture;
SDL_Rect mySrcRect, myIntermediateRect, myDstRect;
FBSurface::Attributes myAttributes;
bool myTexturesAreAllocated;
bool myRecreateTextures;
SDL_Surface* myStaticData;
FrameBufferSDL2& myFB;
private:
void recreateTexturesIfNecessary();
void blitToIntermediate();
private:
HqBlitter(const HqBlitter&) = delete;
HqBlitter(HqBlitter&&) = delete;
HqBlitter& operator=(const HqBlitter&) = delete;
HqBlitter& operator=(HqBlitter&&) = delete;
};
#endif // HQ_BLITTER_CXX