thirdparty/scummvm
2
0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

TINYGL: Refactored big complex if else sequence with template function calls.

Browse source
This commit is contained in:
Stefano Musumeci 2014-08-10 20:18:04 +02:00
parent d747cad5b2
commit f43d39172b
1 changed files with 45 additions and 62 deletions
Download patch file Download diff file Expand all files Collapse all files

107
graphics/tinygl/zblit.cpp
View file

@ -578,76 +578,59 @@ void tglBlitZBuffer(BlitImage *blitImage, int x, int y) {
namespace Internal {
template <bool kEnableAlphaBlending, bool kDisableColor, bool kDisableTransform, bool kDisableBlend>
void tglBlit(BlitImage *blitImage, const BlitTransform &transform) {
if (transform._flipHorizontally) {
if (transform._flipVertically) {
blitImage->tglBlitGeneric<kDisableBlend, kDisableColor, kDisableTransform, true, true, kEnableAlphaBlending>(transform);
} else {
blitImage->tglBlitGeneric<kDisableBlend, kDisableColor, kDisableTransform, false, true, kEnableAlphaBlending>(transform);
}
} else if (transform._flipVertically) {
blitImage->tglBlitGeneric<kDisableBlend, kDisableColor, kDisableTransform, true, false, kEnableAlphaBlending>(transform);
} else {
blitImage->tglBlitGeneric<kDisableBlend, kDisableColor, kDisableTransform, false, false, kEnableAlphaBlending>(transform);
}
}
template <bool kEnableAlphaBlending, bool kDisableColor, bool kDisableTransform>
void tglBlit(BlitImage *blitImage, const BlitTransform &transform, bool disableBlend) {
if (disableBlend) {
tglBlit<kEnableAlphaBlending, kDisableColor, kDisableTransform, true>(blitImage, transform);
} else {
tglBlit<kEnableAlphaBlending, kDisableColor, kDisableTransform, false>(blitImage, transform);
}
}
template <bool kEnableAlphaBlending, bool kDisableColor>
void tglBlit(BlitImage *blitImage, const BlitTransform &transform, bool disableTransform, bool disableBlend) {
if (disableTransform) {
tglBlit<kEnableAlphaBlending, kDisableColor, true>(blitImage, transform, disableBlend);
} else {
tglBlit<kEnableAlphaBlending, kDisableColor, false>(blitImage, transform, disableBlend);
}
}
template <bool kEnableAlphaBlending>
void tglBlit(BlitImage *blitImage, const BlitTransform &transform, bool disableColor, bool disableTransform, bool disableBlend) {
if (disableColor) {
tglBlit<kEnableAlphaBlending, true>(blitImage, transform, disableTransform, disableBlend);
} else {
tglBlit<kEnableAlphaBlending, false>(blitImage, transform, disableTransform, disableBlend);
}
}
void tglBlit(BlitImage *blitImage, const BlitTransform &transform) {
TinyGL::GLContext *c =TinyGL::gl_get_context();
bool disableColor = transform._aTint == 1.0f && transform._bTint == 1.0f && transform._gTint == 1.0f && transform._rTint == 1.0f;
bool disableTransform = transform._destinationRectangle.width() == 0 && transform._destinationRectangle.height() == 0 && transform._rotation == 0;
bool disableBlend = c->fb->isBlendingEnabled() == false;
bool enableAlphaBlending = c->fb->isAlphaBlendingEnabled();
if (enableAlphaBlending) {
if (transform._flipHorizontally == false && transform._flipVertically == false) {
if (disableColor && disableTransform && disableBlend) {
blitImage->tglBlitGeneric<true, true, true, false, false, true>(transform);
} else if (disableColor && disableTransform) {
blitImage->tglBlitGeneric<false, true, true, false, false, true>(transform);
} else if (disableTransform) {
blitImage->tglBlitGeneric<false, false, true, false, false, true>(transform);
} else {
blitImage->tglBlitGeneric<false, false, false, false, false, true>(transform);
}
} else if (transform._flipHorizontally == false) {
if (disableColor && disableTransform && disableBlend) {
blitImage->tglBlitGeneric<true, true, true, true, false, true>(transform);
} else if (disableColor && disableTransform) {
blitImage->tglBlitGeneric<false, true, true, true, false, true>(transform);
} else if (disableTransform) {
blitImage->tglBlitGeneric<false, false, true, true, false, true>(transform);
} else {
blitImage->tglBlitGeneric<false, false, false, true, false, true>(transform);
}
} else {
if (disableColor && disableTransform && disableBlend) {
blitImage->tglBlitGeneric<true, true, true, false, true, true>(transform);
} else if (disableColor && disableTransform) {
blitImage->tglBlitGeneric<false, true, true, false, true, true>(transform);
} else if (disableTransform) {
blitImage->tglBlitGeneric<false, false, true, false, true, true>(transform);
} else {
blitImage->tglBlitGeneric<false, false, false, false, true, true>(transform);
}
}
tglBlit<true>(blitImage, transform, disableColor, disableTransform, disableBlend);
} else {
if (transform._flipHorizontally == false && transform._flipVertically == false) {
if (disableColor && disableTransform && disableBlend) {
blitImage->tglBlitGeneric<true, true, true, false, false, false>(transform);
} else if (disableColor && disableTransform) {
blitImage->tglBlitGeneric<false, true, true, false, false, false>(transform);
} else if (disableTransform) {
blitImage->tglBlitGeneric<false, false, true, false, false, false>(transform);
} else {
blitImage->tglBlitGeneric<false, false, false, false, false, false>(transform);
}
} else if (transform._flipHorizontally == false) {
if (disableColor && disableTransform && disableBlend) {
blitImage->tglBlitGeneric<true, true, true, true, false, false>(transform);
} else if (disableColor && disableTransform) {
blitImage->tglBlitGeneric<false, true, true, true, false, false>(transform);
} else if (disableTransform) {
blitImage->tglBlitGeneric<false, false, true, true, false, false>(transform);
} else {
blitImage->tglBlitGeneric<false, false, false, true, false, false>(transform);
}
} else {
if (disableColor && disableTransform && disableBlend) {
blitImage->tglBlitGeneric<true, true, true, false, true, false>(transform);
} else if (disableColor && disableTransform) {
blitImage->tglBlitGeneric<false, true, true, false, true, false>(transform);
} else if (disableTransform) {
blitImage->tglBlitGeneric<false, false, true, false, true, false>(transform);
} else {
blitImage->tglBlitGeneric<false, false, false, false, true, false>(transform);
}
}
tglBlit<false>(blitImage, transform, disableColor, disableTransform, disableBlend);
}
}